diff options
Diffstat (limited to 'system/test-kernel/0130-lrng.patch')
| -rw-r--r-- | system/test-kernel/0130-lrng.patch | 28362 |
1 files changed, 28362 insertions, 0 deletions
diff --git a/system/test-kernel/0130-lrng.patch b/system/test-kernel/0130-lrng.patch new file mode 100644 index 000000000..89d06d84c --- /dev/null +++ b/system/test-kernel/0130-lrng.patch @@ -0,0 +1,28362 @@ +diff -urN linux-5.15/MAINTAINERS linux-5.15-lrng/MAINTAINERS +--- linux-5.15/MAINTAINERS 2021-11-01 07:53:10.000000000 +1100 ++++ linux-5.15-lrng/MAINTAINERS 2021-11-29 12:36:52.113279174 +1100 +@@ -10830,6 +10830,13 @@ + F: Documentation/memory-barriers.txt + F: tools/memory-model/ + ++LINUX RANDOM NUMBER GENERATOR (LRNG) DRIVER ++M: Stephan Mueller <smueller@chronox.de> ++S: Maintained ++W: https://www.chronox.de/lrng.html ++F: drivers/char/lrng/* ++F: include/linux/lrng.h ++ + LIS3LV02D ACCELEROMETER DRIVER + M: Eric Piel <eric.piel@tremplin-utc.net> + S: Maintained +diff -urN linux-5.15/MAINTAINERS.orig linux-5.15-lrng/MAINTAINERS.orig +--- linux-5.15/MAINTAINERS.orig 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/MAINTAINERS.orig 2021-11-29 12:32:21.653280206 +1100 +@@ -0,0 +1,20816 @@ ++List of maintainers and how to submit kernel changes ++==================================================== ++ ++Please try to follow the guidelines below. This will make things ++easier on the maintainers. Not all of these guidelines matter for every ++trivial patch so apply some common sense. ++ ++Tips for patch submitters ++------------------------- ++ ++1. Always *test* your changes, however small, on at least 4 or ++ 5 people, preferably many more. ++ ++2. Try to release a few ALPHA test versions to the net. Announce ++ them onto the kernel channel and await results. This is especially ++ important for device drivers, because often that's the only way ++ you will find things like the fact version 3 firmware needs ++ a magic fix you didn't know about, or some clown changed the ++ chips on a board and not its name. (Don't laugh! Look at the ++ SMC etherpower for that.) ++ ++3. Make sure your changes compile correctly in multiple ++ configurations. In particular check that changes work both as a ++ module and built into the kernel. ++ ++4. When you are happy with a change make it generally available for ++ testing and await feedback. ++ ++5. Make a patch available to the relevant maintainer in the list. Use ++ ``diff -u`` to make the patch easy to merge. Be prepared to get your ++ changes sent back with seemingly silly requests about formatting ++ and variable names. These aren't as silly as they seem. One ++ job the maintainers (and especially Linus) do is to keep things ++ looking the same. Sometimes this means that the clever hack in ++ your driver to get around a problem actually needs to become a ++ generalized kernel feature ready for next time. ++ ++ PLEASE check your patch with the automated style checker ++ (scripts/checkpatch.pl) to catch trivial style violations. ++ See Documentation/process/coding-style.rst for guidance here. ++ ++ PLEASE CC: the maintainers and mailing lists that are generated ++ by ``scripts/get_maintainer.pl.`` The results returned by the ++ script will be best if you have git installed and are making ++ your changes in a branch derived from Linus' latest git tree. ++ See Documentation/process/submitting-patches.rst for details. ++ ++ PLEASE try to include any credit lines you want added with the ++ patch. It avoids people being missed off by mistake and makes ++ it easier to know who wants adding and who doesn't. ++ ++ PLEASE document known bugs. If it doesn't work for everything ++ or does something very odd once a month document it. ++ ++ PLEASE remember that submissions must be made under the terms ++ of the Linux Foundation certificate of contribution and should ++ include a Signed-off-by: line. The current version of this ++ "Developer's Certificate of Origin" (DCO) is listed in the file ++ Documentation/process/submitting-patches.rst. ++ ++6. Make sure you have the right to send any changes you make. If you ++ do changes at work you may find your employer owns the patch ++ not you. ++ ++7. When sending security related changes or reports to a maintainer ++ please Cc: security@kernel.org, especially if the maintainer ++ does not respond. Please keep in mind that the security team is ++ a small set of people who can be efficient only when working on ++ verified bugs. Please only Cc: this list when you have identified ++ that the bug would present a short-term risk to other users if it ++ were publicly disclosed. For example, reports of address leaks do ++ not represent an immediate threat and are better handled publicly, ++ and ideally, should come with a patch proposal. Please do not send ++ automated reports to this list either. Such bugs will be handled ++ better and faster in the usual public places. See ++ Documentation/admin-guide/security-bugs.rst for details. ++ ++8. Happy hacking. ++ ++Descriptions of section entries and preferred order ++--------------------------------------------------- ++ ++ M: *Mail* patches to: FullName <address@domain> ++ R: Designated *Reviewer*: FullName <address@domain> ++ These reviewers should be CCed on patches. ++ L: *Mailing list* that is relevant to this area ++ S: *Status*, one of the following: ++ Supported: Someone is actually paid to look after this. ++ Maintained: Someone actually looks after it. ++ Odd Fixes: It has a maintainer but they don't have time to do ++ much other than throw the odd patch in. See below.. ++ Orphan: No current maintainer [but maybe you could take the ++ role as you write your new code]. ++ Obsolete: Old code. Something tagged obsolete generally means ++ it has been replaced by a better system and you ++ should be using that. ++ W: *Web-page* with status/info ++ Q: *Patchwork* web based patch tracking system site ++ B: URI for where to file *bugs*. A web-page with detailed bug ++ filing info, a direct bug tracker link, or a mailto: URI. ++ C: URI for *chat* protocol, server and channel where developers ++ usually hang out, for example irc://server/channel. ++ P: Subsystem Profile document for more details submitting ++ patches to the given subsystem. This is either an in-tree file, ++ or a URI. See Documentation/maintainer/maintainer-entry-profile.rst ++ for details. ++ T: *SCM* tree type and location. ++ Type is one of: git, hg, quilt, stgit, topgit ++ F: *Files* and directories wildcard patterns. ++ A trailing slash includes all files and subdirectory files. ++ F: drivers/net/ all files in and below drivers/net ++ F: drivers/net/* all files in drivers/net, but not below ++ F: */net/* all files in "any top level directory"/net ++ One pattern per line. Multiple F: lines acceptable. ++ X: *Excluded* files and directories that are NOT maintained, same ++ rules as F:. Files exclusions are tested before file matches. ++ Can be useful for excluding a specific subdirectory, for instance: ++ F: net/ ++ X: net/ipv6/ ++ matches all files in and below net excluding net/ipv6/ ++ N: Files and directories *Regex* patterns. ++ N: [^a-z]tegra all files whose path contains tegra ++ (not including files like integrator) ++ One pattern per line. Multiple N: lines acceptable. ++ scripts/get_maintainer.pl has different behavior for files that ++ match F: pattern and matches of N: patterns. By default, ++ get_maintainer will not look at git log history when an F: pattern ++ match occurs. When an N: match occurs, git log history is used ++ to also notify the people that have git commit signatures. ++ K: *Content regex* (perl extended) pattern match in a patch or file. ++ For instance: ++ K: of_get_profile ++ matches patches or files that contain "of_get_profile" ++ K: \b(printk|pr_(info|err))\b ++ matches patches or files that contain one or more of the words ++ printk, pr_info or pr_err ++ One regex pattern per line. Multiple K: lines acceptable. ++ ++Maintainers List ++---------------- ++ ++.. note:: When reading this list, please look for the most precise areas ++ first. When adding to this list, please keep the entries in ++ alphabetical order. ++ ++3C59X NETWORK DRIVER ++M: Steffen Klassert <klassert@kernel.org> ++L: netdev@vger.kernel.org ++S: Odd Fixes ++F: Documentation/networking/device_drivers/ethernet/3com/vortex.rst ++F: drivers/net/ethernet/3com/3c59x.c ++ ++3CR990 NETWORK DRIVER ++M: David Dillow <dave@thedillows.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/3com/typhoon* ++ ++3WARE SAS/SATA-RAID SCSI DRIVERS (3W-XXXX, 3W-9XXX, 3W-SAS) ++M: Adam Radford <aradford@gmail.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: http://www.lsi.com ++F: drivers/scsi/3w-* ++ ++53C700 AND 53C700-66 SCSI DRIVER ++M: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: drivers/scsi/53c700* ++ ++6LOWPAN GENERIC (BTLE/IEEE 802.15.4) ++M: Alexander Aring <alex.aring@gmail.com> ++M: Jukka Rissanen <jukka.rissanen@linux.intel.com> ++L: linux-bluetooth@vger.kernel.org ++L: linux-wpan@vger.kernel.org ++S: Maintained ++F: Documentation/networking/6lowpan.rst ++F: include/net/6lowpan.h ++F: net/6lowpan/ ++ ++6PACK NETWORK DRIVER FOR AX.25 ++M: Andreas Koensgen <ajk@comnets.uni-bremen.de> ++L: linux-hams@vger.kernel.org ++S: Maintained ++F: drivers/net/hamradio/6pack.c ++ ++802.11 (including CFG80211/NL80211) ++M: Johannes Berg <johannes@sipsolutions.net> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++W: https://wireless.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git ++F: Documentation/driver-api/80211/cfg80211.rst ++F: Documentation/networking/regulatory.rst ++F: include/linux/ieee80211.h ++F: include/net/cfg80211.h ++F: include/net/ieee80211_radiotap.h ++F: include/net/iw_handler.h ++F: include/net/wext.h ++F: include/uapi/linux/nl80211.h ++F: net/wireless/ ++ ++8169 10/100/1000 GIGABIT ETHERNET DRIVER ++M: Heiner Kallweit <hkallweit1@gmail.com> ++M: nic_swsd@realtek.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/realtek/r8169* ++ ++8250/16?50 (AND CLONE UARTS) SERIAL DRIVER ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++L: linux-serial@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git ++F: drivers/tty/serial/8250* ++F: include/linux/serial_8250.h ++ ++8390 NETWORK DRIVERS [WD80x3/SMC-ELITE, SMC-ULTRA, NE2000, 3C503, etc.] ++L: netdev@vger.kernel.org ++S: Orphan / Obsolete ++F: drivers/net/ethernet/8390/ ++ ++9P FILE SYSTEM ++M: Eric Van Hensbergen <ericvh@gmail.com> ++M: Latchesar Ionkov <lucho@ionkov.net> ++M: Dominique Martinet <asmadeus@codewreck.org> ++L: v9fs-developer@lists.sourceforge.net ++S: Maintained ++W: http://swik.net/v9fs ++Q: http://patchwork.kernel.org/project/v9fs-devel/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs.git ++T: git git://github.com/martinetd/linux.git ++F: Documentation/filesystems/9p.rst ++F: fs/9p/ ++F: include/net/9p/ ++F: include/trace/events/9p.h ++F: include/uapi/linux/virtio_9p.h ++F: net/9p/ ++ ++A8293 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/a8293* ++ ++AACRAID SCSI RAID DRIVER ++M: Adaptec OEM Raid Solutions <aacraid@microsemi.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: http://www.adaptec.com/ ++F: Documentation/scsi/aacraid.rst ++F: drivers/scsi/aacraid/ ++ ++ABI/API ++L: linux-api@vger.kernel.org ++F: include/linux/syscalls.h ++F: kernel/sys_ni.c ++X: include/uapi/ ++X: arch/*/include/uapi/ ++ ++ABIT UGURU 1,2 HARDWARE MONITOR DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: drivers/hwmon/abituguru.c ++ ++ABIT UGURU 3 HARDWARE MONITOR DRIVER ++M: Alistair John Strachan <alistair@devzero.co.uk> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: drivers/hwmon/abituguru3.c ++ ++ACCES 104-DIO-48E GPIO DRIVER ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-104-dio-48e.c ++ ++ACCES 104-IDI-48 GPIO DRIVER ++M: "William Breathitt Gray" <vilhelm.gray@gmail.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-104-idi-48.c ++ ++ACCES 104-IDIO-16 GPIO DRIVER ++M: "William Breathitt Gray" <vilhelm.gray@gmail.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-104-idio-16.c ++ ++ACCES 104-QUAD-8 DRIVER ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++M: Syed Nayyar Waris <syednwaris@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: drivers/counter/104-quad-8.c ++ ++ACCES PCI-IDIO-16 GPIO DRIVER ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-pci-idio-16.c ++ ++ACCES PCIe-IDIO-24 GPIO DRIVER ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-pcie-idio-24.c ++ ++ACENIC DRIVER ++M: Jes Sorensen <jes@trained-monkey.org> ++L: linux-acenic@sunsite.dk ++S: Maintained ++F: drivers/net/ethernet/alteon/acenic* ++ ++ACER ASPIRE ONE TEMPERATURE AND FAN DRIVER ++M: Peter Kaestle <peter@piie.net> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++W: http://piie.net/?section=acerhdf ++F: drivers/platform/x86/acerhdf.c ++ ++ACER WMI LAPTOP EXTRAS ++M: "Lee, Chun-Yi" <jlee@suse.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/acer-wmi.c ++ ++ACPI ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++M: Len Brown <lenb@kernel.org> ++L: linux-acpi@vger.kernel.org ++S: Supported ++W: https://01.org/linux-acpi ++Q: https://patchwork.kernel.org/project/linux-acpi/list/ ++B: https://bugzilla.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm ++F: Documentation/ABI/testing/configfs-acpi ++F: Documentation/ABI/testing/sysfs-bus-acpi ++F: Documentation/firmware-guide/acpi/ ++F: drivers/acpi/ ++F: drivers/pci/*/*acpi* ++F: drivers/pci/*acpi* ++F: drivers/pnp/pnpacpi/ ++F: include/acpi/ ++F: include/linux/acpi.h ++F: include/linux/fwnode.h ++F: tools/power/acpi/ ++ ++ACPI APEI ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++M: Len Brown <lenb@kernel.org> ++R: James Morse <james.morse@arm.com> ++R: Tony Luck <tony.luck@intel.com> ++R: Borislav Petkov <bp@alien8.de> ++L: linux-acpi@vger.kernel.org ++F: drivers/acpi/apei/ ++ ++ACPI COMPONENT ARCHITECTURE (ACPICA) ++M: Robert Moore <robert.moore@intel.com> ++M: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> ++L: linux-acpi@vger.kernel.org ++L: devel@acpica.org ++S: Supported ++W: https://acpica.org/ ++W: https://github.com/acpica/acpica/ ++Q: https://patchwork.kernel.org/project/linux-acpi/list/ ++B: https://bugzilla.kernel.org ++B: https://bugs.acpica.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm ++F: drivers/acpi/acpica/ ++F: include/acpi/ ++F: tools/power/acpi/ ++ ++ACPI FAN DRIVER ++M: Zhang Rui <rui.zhang@intel.com> ++L: linux-acpi@vger.kernel.org ++S: Supported ++W: https://01.org/linux-acpi ++B: https://bugzilla.kernel.org ++F: drivers/acpi/fan.c ++ ++ACPI FOR ARM64 (ACPI/arm64) ++M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> ++M: Hanjun Guo <guohanjun@huawei.com> ++M: Sudeep Holla <sudeep.holla@arm.com> ++L: linux-acpi@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/acpi/arm64 ++ ++ACPI I2C MULTI INSTANTIATE DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/i2c-multi-instantiate.c ++ ++ACPI PMIC DRIVERS ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++M: Len Brown <lenb@kernel.org> ++R: Andy Shevchenko <andy@kernel.org> ++R: Mika Westerberg <mika.westerberg@linux.intel.com> ++L: linux-acpi@vger.kernel.org ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-acpi/list/ ++B: https://bugzilla.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm ++F: drivers/acpi/pmic/ ++ ++ACPI THERMAL DRIVER ++M: Rafael J. Wysocki <rafael@kernel.org> ++R: Zhang Rui <rui.zhang@intel.com> ++L: linux-acpi@vger.kernel.org ++S: Supported ++W: https://01.org/linux-acpi ++B: https://bugzilla.kernel.org ++F: drivers/acpi/*thermal* ++ ++ACPI VIDEO DRIVER ++M: Zhang Rui <rui.zhang@intel.com> ++L: linux-acpi@vger.kernel.org ++S: Supported ++W: https://01.org/linux-acpi ++B: https://bugzilla.kernel.org ++F: drivers/acpi/acpi_video.c ++ ++ACPI VIOT DRIVER ++M: Jean-Philippe Brucker <jean-philippe@linaro.org> ++L: linux-acpi@vger.kernel.org ++L: iommu@lists.linux-foundation.org ++S: Maintained ++F: drivers/acpi/viot.c ++F: include/linux/acpi_viot.h ++ ++ACPI WMI DRIVER ++L: platform-driver-x86@vger.kernel.org ++S: Orphan ++F: drivers/platform/x86/wmi.c ++F: include/uapi/linux/wmi.h ++ ++ACRN HYPERVISOR SERVICE MODULE ++M: Fei Li <fei1.li@intel.com> ++L: acrn-dev@lists.projectacrn.org (subscribers-only) ++S: Supported ++W: https://projectacrn.org ++F: Documentation/virt/acrn/ ++F: drivers/virt/acrn/ ++F: include/uapi/linux/acrn.h ++ ++AD1889 ALSA SOUND DRIVER ++L: linux-parisc@vger.kernel.org ++S: Maintained ++W: https://parisc.wiki.kernel.org/index.php/AD1889 ++F: sound/pci/ad1889.* ++ ++AD5110 ANALOG DEVICES DIGITAL POTENTIOMETERS DRIVER ++M: Mugilraj Dhavachelvan <dmugil2000@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++F: drivers/iio/potentiometer/ad5110.c ++ ++AD525X ANALOG DEVICES DIGITAL POTENTIOMETERS DRIVER ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/AD5254 ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/misc/ad525x_dpot.c ++ ++AD5398 CURRENT REGULATOR DRIVER (AD5398/AD5821) ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/AD5398 ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/regulator/ad5398.c ++ ++AD714X CAPACITANCE TOUCH SENSOR DRIVER (AD7142/3/7/8/7A) ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/AD7142 ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/input/misc/ad714x.c ++ ++AD7877 TOUCHSCREEN DRIVER ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/AD7877 ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/input/touchscreen/ad7877.c ++ ++AD7879 TOUCHSCREEN DRIVER (AD7879/AD7889) ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/AD7879 ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/input/touchscreen/ad7879.c ++ ++ADDRESS SPACE LAYOUT RANDOMIZATION (ASLR) ++M: Jiri Kosina <jikos@kernel.org> ++S: Maintained ++ ++ADF7242 IEEE 802.15.4 RADIO DRIVER ++M: Michael Hennerich <michael.hennerich@analog.com> ++L: linux-wpan@vger.kernel.org ++S: Supported ++W: https://wiki.analog.com/ADF7242 ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/net/ieee802154/adf7242.txt ++F: drivers/net/ieee802154/adf7242.c ++ ++ADM1025 HARDWARE MONITOR DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/adm1025.rst ++F: drivers/hwmon/adm1025.c ++ ++ADM1029 HARDWARE MONITOR DRIVER ++M: Corentin Labbe <clabbe.montjoie@gmail.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: drivers/hwmon/adm1029.c ++ ++ADM8211 WIRELESS DRIVER ++L: linux-wireless@vger.kernel.org ++S: Orphan ++W: https://wireless.wiki.kernel.org/ ++F: drivers/net/wireless/admtek/adm8211.* ++ ++ADP1653 FLASH CONTROLLER DRIVER ++M: Sakari Ailus <sakari.ailus@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/adp1653.c ++F: include/media/i2c/adp1653.h ++ ++ADP5520 BACKLIGHT DRIVER WITH IO EXPANDER (ADP5520/ADP5501) ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/ADP5520 ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/gpio/gpio-adp5520.c ++F: drivers/input/keyboard/adp5520-keys.c ++F: drivers/leds/leds-adp5520.c ++F: drivers/mfd/adp5520.c ++F: drivers/video/backlight/adp5520_bl.c ++ ++ADP5588 QWERTY KEYPAD AND IO EXPANDER DRIVER (ADP5588/ADP5587) ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/ADP5588 ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/gpio/gpio-adp5588.c ++F: drivers/input/keyboard/adp5588-keys.c ++ ++ADP8860 BACKLIGHT DRIVER (ADP8860/ADP8861/ADP8863) ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/ADP8860 ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/video/backlight/adp8860_bl.c ++ ++ADT746X FAN DRIVER ++M: Colin Leroy <colin@colino.net> ++S: Maintained ++F: drivers/macintosh/therm_adt746x.c ++ ++ADT7475 HARDWARE MONITOR DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/adt7475.rst ++F: drivers/hwmon/adt7475.c ++ ++ADVANSYS SCSI DRIVER ++M: Matthew Wilcox <willy@infradead.org> ++M: Hannes Reinecke <hare@suse.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: Documentation/scsi/advansys.rst ++F: drivers/scsi/advansys.c ++ ++ADVANTECH SWBTN DRIVER ++M: Andrea Ho <Andrea.Ho@advantech.com.tw> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/adv_swbutton.c ++ ++ADXL34X THREE-AXIS DIGITAL ACCELEROMETER DRIVER (ADXL345/ADXL346) ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/ADXL345 ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml ++F: drivers/input/misc/adxl34x.c ++ ++ADXL372 THREE-AXIS DIGITAL ACCELEROMETER DRIVER ++M: Michael Hennerich <michael.hennerich@analog.com> ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml ++F: drivers/iio/accel/adxl372.c ++F: drivers/iio/accel/adxl372_i2c.c ++F: drivers/iio/accel/adxl372_spi.c ++ ++AF9013 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/af9013* ++ ++AF9033 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/af9033* ++ ++AFFS FILE SYSTEM ++M: David Sterba <dsterba@suse.com> ++L: linux-fsdevel@vger.kernel.org ++S: Odd Fixes ++F: Documentation/filesystems/affs.rst ++F: fs/affs/ ++ ++AFS FILESYSTEM ++M: David Howells <dhowells@redhat.com> ++M: Marc Dionne <marc.dionne@auristor.com> ++L: linux-afs@lists.infradead.org ++S: Supported ++W: https://www.infradead.org/~dhowells/kafs/ ++F: Documentation/filesystems/afs.rst ++F: fs/afs/ ++F: include/trace/events/afs.h ++ ++AGPGART DRIVER ++M: David Airlie <airlied@linux.ie> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm ++F: drivers/char/agp/ ++F: include/linux/agp* ++F: include/uapi/linux/agp* ++ ++AHA152X SCSI DRIVER ++M: "Juergen E. Fischer" <fischer@norbit.de> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: drivers/scsi/aha152x* ++F: drivers/scsi/pcmcia/aha152x* ++ ++AIC7XXX / AIC79XX SCSI DRIVER ++M: Hannes Reinecke <hare@suse.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: drivers/scsi/aic7xxx/ ++ ++AIMSLAB FM RADIO RECEIVER DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-aimslab* ++ ++AIO ++M: Benjamin LaHaise <bcrl@kvack.org> ++L: linux-aio@kvack.org ++S: Supported ++F: fs/aio.c ++F: include/linux/*aio*.h ++ ++AIRSPY MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/airspy/ ++ ++ALACRITECH GIGABIT ETHERNET DRIVER ++M: Lino Sanfilippo <LinoSanfilippo@gmx.de> ++S: Maintained ++F: drivers/net/ethernet/alacritech/* ++ ++ALCATEL SPEEDTOUCH USB DRIVER ++M: Duncan Sands <duncan.sands@free.fr> ++L: linux-usb@vger.kernel.org ++S: Maintained ++W: http://www.linux-usb.org/SpeedTouch/ ++F: drivers/usb/atm/speedtch.c ++F: drivers/usb/atm/usbatm.c ++ ++ALCHEMY AU1XX0 MMC DRIVER ++M: Manuel Lauss <manuel.lauss@gmail.com> ++S: Maintained ++F: drivers/mmc/host/au1xmmc.c ++ ++ALI1563 I2C DRIVER ++M: Rudolf Marek <r.marek@assembler.cz> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/i2c/busses/i2c-ali1563.rst ++F: drivers/i2c/busses/i2c-ali1563.c ++ ++ALIENWARE WMI DRIVER ++L: Dell.Client.Kernel@dell.com ++S: Maintained ++F: drivers/platform/x86/dell/alienware-wmi.c ++ ++ALL SENSORS DLH SERIES PRESSURE SENSORS DRIVER ++M: Tomislav Denis <tomislav.denis@avl.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++W: http://www.allsensors.com/ ++F: Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml ++F: drivers/iio/pressure/dlhl60d.c ++ ++ALLEGRO DVT VIDEO IP CORE DRIVER ++M: Michael Tretter <m.tretter@pengutronix.de> ++R: Pengutronix Kernel Team <kernel@pengutronix.de> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/allegro,al5e.yaml ++F: drivers/media/platform/allegro-dvt/ ++ ++ALLWINNER A10 CSI DRIVER ++M: Maxime Ripard <mripard@kernel.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml ++F: drivers/media/platform/sunxi/sun4i-csi/ ++ ++ALLWINNER CPUFREQ DRIVER ++M: Yangtao Li <tiny.windzz@gmail.com> ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/opp/allwinner,sun50i-h6-operating-points.yaml ++F: drivers/cpufreq/sun50i-cpufreq-nvmem.c ++ ++ALLWINNER CRYPTO DRIVERS ++M: Corentin Labbe <clabbe.montjoie@gmail.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: drivers/crypto/allwinner/ ++ ++ALLWINNER HARDWARE SPINLOCK SUPPORT ++M: Wilken Gottwalt <wilken.gottwalt@posteo.net> ++S: Maintained ++F: Documentation/devicetree/bindings/hwlock/allwinner,sun6i-hwspinlock.yaml ++F: drivers/hwspinlock/sun6i_hwspinlock.c ++ ++ALLWINNER THERMAL DRIVER ++M: Vasily Khoruzhick <anarsoul@gmail.com> ++M: Yangtao Li <tiny.windzz@gmail.com> ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml ++F: drivers/thermal/sun8i_thermal.c ++ ++ALLWINNER VPU DRIVER ++M: Maxime Ripard <mripard@kernel.org> ++M: Paul Kocialkowski <paul.kocialkowski@bootlin.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/staging/media/sunxi/cedrus/ ++ ++ALPHA PORT ++M: Richard Henderson <rth@twiddle.net> ++M: Ivan Kokshaysky <ink@jurassic.park.msu.ru> ++M: Matt Turner <mattst88@gmail.com> ++L: linux-alpha@vger.kernel.org ++S: Odd Fixes ++F: arch/alpha/ ++ ++ALPS PS/2 TOUCHPAD DRIVER ++R: Pali Rohár <pali@kernel.org> ++F: drivers/input/mouse/alps.* ++ ++ALTERA I2C CONTROLLER DRIVER ++M: Thor Thayer <thor.thayer@linux.intel.com> ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-altera.txt ++F: drivers/i2c/busses/i2c-altera.c ++ ++ALTERA MAILBOX DRIVER ++M: Joyce Ooi <joyce.ooi@intel.com> ++S: Maintained ++F: drivers/mailbox/mailbox-altera.c ++ ++ALTERA MSGDMA IP CORE DRIVER ++M: Olivier Dautricourt <olivier.dautricourt@orolia.com> ++R: Stefan Roese <sr@denx.de> ++L: dmaengine@vger.kernel.org ++S: Odd Fixes ++F: Documentation/devicetree/bindings/dma/altr,msgdma.yaml ++F: drivers/dma/altera-msgdma.c ++ ++ALTERA PIO DRIVER ++M: Mun Yew Tham <mun.yew.tham@intel.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-altera.c ++ ++ALTERA SYSTEM MANAGER DRIVER ++M: Thor Thayer <thor.thayer@linux.intel.com> ++S: Maintained ++F: drivers/mfd/altera-sysmgr.c ++F: include/linux/mfd/altera-sysmgr.h ++ ++ALTERA SYSTEM RESOURCE DRIVER FOR ARRIA10 DEVKIT ++M: Thor Thayer <thor.thayer@linux.intel.com> ++S: Maintained ++F: drivers/gpio/gpio-altera-a10sr.c ++F: drivers/mfd/altera-a10sr.c ++F: drivers/reset/reset-a10sr.c ++F: include/dt-bindings/reset/altr,rst-mgr-a10sr.h ++F: include/linux/mfd/altera-a10sr.h ++ ++ALTERA TRIPLE SPEED ETHERNET DRIVER ++M: Joyce Ooi <joyce.ooi@intel.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/altera/ ++ ++ALTERA UART/JTAG UART SERIAL DRIVERS ++M: Tobias Klauser <tklauser@distanz.ch> ++L: linux-serial@vger.kernel.org ++S: Maintained ++F: drivers/tty/serial/altera_jtaguart.c ++F: drivers/tty/serial/altera_uart.c ++F: include/linux/altera_jtaguart.h ++F: include/linux/altera_uart.h ++ ++AMAZON ANNAPURNA LABS FIC DRIVER ++M: Talel Shenhar <talel@amazon.com> ++S: Maintained ++F: Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt ++F: drivers/irqchip/irq-al-fic.c ++ ++AMAZON ANNAPURNA LABS MEMORY CONTROLLER EDAC ++M: Talel Shenhar <talel@amazon.com> ++M: Talel Shenhar <talelshenhar@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml ++F: drivers/edac/al_mc_edac.c ++ ++AMAZON ANNAPURNA LABS THERMAL MMIO DRIVER ++M: Talel Shenhar <talel@amazon.com> ++S: Maintained ++F: Documentation/devicetree/bindings/thermal/amazon,al-thermal.txt ++F: drivers/thermal/thermal_mmio.c ++ ++AMAZON ETHERNET DRIVERS ++M: Netanel Belgazal <netanel@amazon.com> ++M: Arthur Kiyanovski <akiyano@amazon.com> ++R: Guy Tzalik <gtzalik@amazon.com> ++R: Saeed Bishara <saeedb@amazon.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/device_drivers/ethernet/amazon/ena.rst ++F: drivers/net/ethernet/amazon/ ++ ++AMAZON RDMA EFA DRIVER ++M: Gal Pressman <galpress@amazon.com> ++R: Yossi Leybovich <sleybo@amazon.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-rdma/list/ ++F: drivers/infiniband/hw/efa/ ++F: include/uapi/rdma/efa-abi.h ++ ++AMD CRYPTOGRAPHIC COPROCESSOR (CCP) DRIVER ++M: Tom Lendacky <thomas.lendacky@amd.com> ++M: John Allen <john.allen@amd.com> ++L: linux-crypto@vger.kernel.org ++S: Supported ++F: drivers/crypto/ccp/ ++F: include/linux/ccp.h ++ ++AMD CRYPTOGRAPHIC COPROCESSOR (CCP) DRIVER - SEV SUPPORT ++M: Brijesh Singh <brijesh.singh@amd.com> ++M: Tom Lendacky <thomas.lendacky@amd.com> ++L: linux-crypto@vger.kernel.org ++S: Supported ++F: drivers/crypto/ccp/sev* ++F: include/uapi/linux/psp-sev.h ++ ++AMD DISPLAY CORE ++M: Harry Wentland <harry.wentland@amd.com> ++M: Leo Li <sunpeng.li@amd.com> ++L: amd-gfx@lists.freedesktop.org ++S: Supported ++T: git https://gitlab.freedesktop.org/agd5f/linux.git ++F: drivers/gpu/drm/amd/display/ ++ ++AMD FAM15H PROCESSOR POWER MONITORING DRIVER ++M: Huang Rui <ray.huang@amd.com> ++L: linux-hwmon@vger.kernel.org ++S: Supported ++F: Documentation/hwmon/fam15h_power.rst ++F: drivers/hwmon/fam15h_power.c ++ ++AMD FCH GPIO DRIVER ++M: Enrico Weigelt, metux IT consult <info@metux.net> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-amd-fch.c ++F: include/linux/platform_data/gpio/gpio-amd-fch.h ++ ++AMD GEODE CS5536 USB DEVICE CONTROLLER DRIVER ++L: linux-geode@lists.infradead.org (moderated for non-subscribers) ++S: Orphan ++F: drivers/usb/gadget/udc/amd5536udc.* ++ ++AMD GEODE PROCESSOR/CHIPSET SUPPORT ++M: Andres Salomon <dilinger@queued.net> ++L: linux-geode@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++W: http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html ++F: arch/x86/include/asm/geode.h ++F: drivers/char/hw_random/geode-rng.c ++F: drivers/crypto/geode* ++F: drivers/video/fbdev/geode/ ++ ++AMD IOMMU (AMD-VI) ++M: Joerg Roedel <joro@8bytes.org> ++R: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> ++L: iommu@lists.linux-foundation.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git ++F: drivers/iommu/amd/ ++F: include/linux/amd-iommu.h ++ ++AMD KFD ++M: Felix Kuehling <Felix.Kuehling@amd.com> ++L: amd-gfx@lists.freedesktop.org ++S: Supported ++T: git https://gitlab.freedesktop.org/agd5f/linux.git ++F: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd*.[ch] ++F: drivers/gpu/drm/amd/amdkfd/ ++F: drivers/gpu/drm/amd/include/cik_structs.h ++F: drivers/gpu/drm/amd/include/kgd_kfd_interface.h ++F: drivers/gpu/drm/amd/include/v9_structs.h ++F: drivers/gpu/drm/amd/include/vi_structs.h ++F: include/uapi/linux/kfd_ioctl.h ++ ++AMD SPI DRIVER ++M: Sanjay R Mehta <sanju.mehta@amd.com> ++S: Maintained ++F: drivers/spi/spi-amd.c ++ ++AMD MP2 I2C DRIVER ++M: Elie Morisse <syniurge@gmail.com> ++M: Nehal Shah <nehal-bakulchandra.shah@amd.com> ++M: Shyam Sundar S K <shyam-sundar.s-k@amd.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: drivers/i2c/busses/i2c-amd-mp2* ++ ++AMD PMC DRIVER ++M: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/amd-pmc.* ++ ++AMD POWERPLAY AND SWSMU ++M: Evan Quan <evan.quan@amd.com> ++L: amd-gfx@lists.freedesktop.org ++S: Supported ++T: git https://gitlab.freedesktop.org/agd5f/linux.git ++F: drivers/gpu/drm/amd/pm/ ++ ++AMD PTDMA DRIVER ++M: Sanjay R Mehta <sanju.mehta@amd.com> ++L: dmaengine@vger.kernel.org ++S: Maintained ++F: drivers/dma/ptdma/ ++ ++AMD SEATTLE DEVICE TREE SUPPORT ++M: Brijesh Singh <brijeshkumar.singh@amd.com> ++M: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> ++M: Tom Lendacky <thomas.lendacky@amd.com> ++S: Supported ++F: arch/arm64/boot/dts/amd/ ++ ++AMD XGBE DRIVER ++M: Tom Lendacky <thomas.lendacky@amd.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: arch/arm64/boot/dts/amd/amd-seattle-xgbe*.dtsi ++F: drivers/net/ethernet/amd/xgbe/ ++ ++AMD SENSOR FUSION HUB DRIVER ++M: Nehal Shah <nehal-bakulchandra.shah@amd.com> ++M: Basavaraj Natikar <basavaraj.natikar@amd.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: Documentation/hid/amd-sfh* ++F: drivers/hid/amd-sfh-hid/ ++ ++AMS AS73211 DRIVER ++M: Christian Eggers <ceggers@arri.de> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/light/ams,as73211.yaml ++F: drivers/iio/light/as73211.c ++ ++ANALOG DEVICES INC AD7192 DRIVER ++M: Alexandru Tachici <alexandru.tachici@analog.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml ++F: drivers/iio/adc/ad7192.c ++ ++ANALOG DEVICES INC AD7292 DRIVER ++M: Marcelo Schmitt <marcelo.schmitt1@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml ++F: drivers/iio/adc/ad7292.c ++ ++ANALOG DEVICES INC AD7768-1 DRIVER ++M: Michael Hennerich <Michael.Hennerich@analog.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml ++F: drivers/iio/adc/ad7768-1.c ++ ++ANALOG DEVICES INC AD7780 DRIVER ++M: Michael Hennerich <Michael.Hennerich@analog.com> ++M: Renato Lui Geh <renatogeh@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml ++F: drivers/iio/adc/ad7780.c ++ ++ANALOG DEVICES INC AD9389B DRIVER ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/ad9389b* ++ ++ANALOG DEVICES INC ADGS1408 DRIVER ++M: Mircea Caprioru <mircea.caprioru@analog.com> ++S: Supported ++F: Documentation/devicetree/bindings/mux/adi,adgs1408.txt ++F: drivers/mux/adgs1408.c ++ ++ANALOG DEVICES INC ADIN DRIVER ++M: Michael Hennerich <michael.hennerich@analog.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/net/adi,adin.yaml ++F: drivers/net/phy/adin.c ++ ++ANALOG DEVICES INC ADIS DRIVER LIBRARY ++M: Nuno Sa <nuno.sa@analog.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++F: drivers/iio/imu/adis.c ++F: include/linux/iio/imu/adis.h ++ ++ANALOG DEVICES INC ADIS16460 DRIVER ++M: Dragos Bogdan <dragos.bogdan@analog.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml ++F: drivers/iio/imu/adis16460.c ++ ++ANALOG DEVICES INC ADIS16475 DRIVER ++M: Nuno Sa <nuno.sa@analog.com> ++L: linux-iio@vger.kernel.org ++W: http://ez.analog.com/community/linux-device-drivers ++S: Supported ++F: drivers/iio/imu/adis16475.c ++F: Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml ++ ++ANALOG DEVICES INC ADM1177 DRIVER ++M: Michael Hennerich <Michael.Hennerich@analog.com> ++L: linux-hwmon@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml ++F: drivers/hwmon/adm1177.c ++ ++ANALOG DEVICES INC ADP5061 DRIVER ++M: Michael Hennerich <Michael.Hennerich@analog.com> ++L: linux-pm@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/power/supply/adp5061.c ++ ++ANALOG DEVICES INC ADV7180 DRIVER ++M: Lars-Peter Clausen <lars@metafoo.de> ++L: linux-media@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/media/i2c/adv7180.c ++F: Documentation/devicetree/bindings/media/i2c/adv7180.yaml ++ ++ANALOG DEVICES INC ADV748X DRIVER ++M: Kieran Bingham <kieran.bingham@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/adv748x/* ++ ++ANALOG DEVICES INC ADV7511 DRIVER ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/adv7511* ++ ++ANALOG DEVICES INC ADV7604 DRIVER ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/adv7604* ++F: Documentation/devicetree/bindings/media/i2c/adv7604.yaml ++ ++ANALOG DEVICES INC ADV7842 DRIVER ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/adv7842* ++ ++ANALOG DEVICES INC ADXRS290 DRIVER ++M: Nishant Malpani <nish.malpani25@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++F: drivers/iio/gyro/adxrs290.c ++F: Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml ++ ++ANALOG DEVICES INC ASOC CODEC DRIVERS ++M: Lars-Peter Clausen <lars@metafoo.de> ++M: Nuno Sá <nuno.sa@analog.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Supported ++W: http://wiki.analog.com/ ++W: http://ez.analog.com/community/linux-device-drivers ++F: sound/soc/codecs/ad1* ++F: sound/soc/codecs/ad7* ++F: sound/soc/codecs/adau* ++F: sound/soc/codecs/adav* ++F: sound/soc/codecs/sigmadsp.* ++F: sound/soc/codecs/ssm* ++ ++ANALOG DEVICES INC DMA DRIVERS ++M: Lars-Peter Clausen <lars@metafoo.de> ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: drivers/dma/dma-axi-dmac.c ++ ++ANALOG DEVICES INC IIO DRIVERS ++M: Lars-Peter Clausen <lars@metafoo.de> ++M: Michael Hennerich <Michael.Hennerich@analog.com> ++S: Supported ++W: http://wiki.analog.com/ ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9523 ++F: Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 ++F: Documentation/devicetree/bindings/iio/*/adi,* ++F: Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml ++F: drivers/iio/*/ad* ++F: drivers/iio/adc/ltc249* ++F: drivers/iio/amplifiers/hmc425a.c ++F: drivers/staging/iio/*/ad* ++X: drivers/iio/*/adjd* ++ ++ANALOGBITS PLL LIBRARIES ++M: Paul Walmsley <paul.walmsley@sifive.com> ++S: Supported ++F: drivers/clk/analogbits/* ++F: include/linux/clk/analogbits* ++ ++ANDES ARCHITECTURE ++M: Nick Hu <nickhu@andestech.com> ++M: Greentime Hu <green.hu@gmail.com> ++M: Vincent Chen <deanbo422@gmail.com> ++S: Supported ++T: git https://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux.git ++F: Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt ++F: Documentation/devicetree/bindings/nds32/ ++F: arch/nds32/ ++N: nds32 ++K: nds32 ++ ++ANDROID CONFIG FRAGMENTS ++M: Rob Herring <robh@kernel.org> ++S: Supported ++F: kernel/configs/android* ++ ++ANDROID DRIVERS ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++M: Arve Hjønnevåg <arve@android.com> ++M: Todd Kjos <tkjos@android.com> ++M: Martijn Coenen <maco@android.com> ++M: Joel Fernandes <joel@joelfernandes.org> ++M: Christian Brauner <christian@brauner.io> ++M: Hridya Valsaraju <hridya@google.com> ++M: Suren Baghdasaryan <surenb@google.com> ++L: linux-kernel@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git ++F: drivers/android/ ++F: drivers/staging/android/ ++ ++ANDROID GOLDFISH PIC DRIVER ++M: Miodrag Dinic <miodrag.dinic@mips.com> ++S: Supported ++F: Documentation/devicetree/bindings/interrupt-controller/google,goldfish-pic.txt ++F: drivers/irqchip/irq-goldfish-pic.c ++ ++ANDROID GOLDFISH RTC DRIVER ++M: Jiaxun Yang <jiaxun.yang@flygoat.com> ++S: Supported ++F: Documentation/devicetree/bindings/rtc/google,goldfish-rtc.txt ++F: drivers/rtc/rtc-goldfish.c ++ ++AOA (Apple Onboard Audio) ALSA DRIVER ++M: Johannes Berg <johannes@sipsolutions.net> ++L: linuxppc-dev@lists.ozlabs.org ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: sound/aoa/ ++ ++APEX EMBEDDED SYSTEMS STX104 IIO DRIVER ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: drivers/iio/adc/stx104.c ++ ++APM DRIVER ++M: Jiri Kosina <jikos@kernel.org> ++S: Odd fixes ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm.git ++F: arch/x86/kernel/apm_32.c ++F: drivers/char/apm-emulation.c ++F: include/linux/apm_bios.h ++F: include/uapi/linux/apm_bios.h ++ ++APPARMOR SECURITY MODULE ++M: John Johansen <john.johansen@canonical.com> ++L: apparmor@lists.ubuntu.com (subscribers-only, general discussion) ++S: Supported ++W: wiki.apparmor.net ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor ++F: Documentation/admin-guide/LSM/apparmor.rst ++F: security/apparmor/ ++ ++APPLE BCM5974 MULTITOUCH DRIVER ++M: Henrik Rydberg <rydberg@bitmath.org> ++L: linux-input@vger.kernel.org ++S: Odd fixes ++F: drivers/input/mouse/bcm5974.c ++ ++APPLE DART IOMMU DRIVER ++M: Sven Peter <sven@svenpeter.dev> ++R: Alyssa Rosenzweig <alyssa@rosenzweig.io> ++L: iommu@lists.linux-foundation.org ++S: Maintained ++F: Documentation/devicetree/bindings/iommu/apple,dart.yaml ++F: drivers/iommu/apple-dart.c ++ ++APPLE SMC DRIVER ++M: Henrik Rydberg <rydberg@bitmath.org> ++L: linux-hwmon@vger.kernel.org ++S: Odd fixes ++F: drivers/hwmon/applesmc.c ++ ++APPLETALK NETWORK LAYER ++L: netdev@vger.kernel.org ++S: Odd fixes ++F: drivers/net/appletalk/ ++F: include/linux/atalk.h ++F: include/uapi/linux/atalk.h ++F: net/appletalk/ ++ ++APPLIED MICRO (APM) X-GENE DEVICE TREE SUPPORT ++M: Khuong Dinh <khuong@os.amperecomputing.com> ++S: Supported ++F: arch/arm64/boot/dts/apm/ ++ ++APPLIED MICRO (APM) X-GENE SOC EDAC ++M: Khuong Dinh <khuong@os.amperecomputing.com> ++S: Supported ++F: Documentation/devicetree/bindings/edac/apm-xgene-edac.txt ++F: drivers/edac/xgene_edac.c ++ ++APPLIED MICRO (APM) X-GENE SOC ETHERNET (V2) DRIVER ++M: Iyappan Subramanian <iyappan@os.amperecomputing.com> ++M: Keyur Chudgar <keyur@os.amperecomputing.com> ++S: Supported ++F: drivers/net/ethernet/apm/xgene-v2/ ++ ++APPLIED MICRO (APM) X-GENE SOC ETHERNET DRIVER ++M: Iyappan Subramanian <iyappan@os.amperecomputing.com> ++M: Keyur Chudgar <keyur@os.amperecomputing.com> ++M: Quan Nguyen <quan@os.amperecomputing.com> ++S: Supported ++F: Documentation/devicetree/bindings/net/apm-xgene-enet.txt ++F: Documentation/devicetree/bindings/net/apm-xgene-mdio.txt ++F: drivers/net/ethernet/apm/xgene/ ++F: drivers/net/mdio/mdio-xgene.c ++ ++APPLIED MICRO (APM) X-GENE SOC PMU ++M: Khuong Dinh <khuong@os.amperecomputing.com> ++S: Supported ++F: Documentation/admin-guide/perf/xgene-pmu.rst ++F: Documentation/devicetree/bindings/perf/apm-xgene-pmu.txt ++F: drivers/perf/xgene_pmu.c ++ ++APTINA CAMERA SENSOR PLL ++M: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/aptina-pll.* ++ ++AQUACOMPUTER D5 NEXT PUMP SENSOR DRIVER ++M: Aleksa Savic <savicaleksa83@gmail.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/aquacomputer_d5next.rst ++F: drivers/hwmon/aquacomputer_d5next.c ++ ++AQUANTIA ETHERNET DRIVER (atlantic) ++M: Igor Russkikh <irusskikh@marvell.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: https://www.marvell.com/ ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++F: Documentation/networking/device_drivers/ethernet/aquantia/atlantic.rst ++F: drivers/net/ethernet/aquantia/atlantic/ ++ ++AQUANTIA ETHERNET DRIVER PTP SUBSYSTEM ++M: Egor Pomozov <epomozov@marvell.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.aquantia.com ++F: drivers/net/ethernet/aquantia/atlantic/aq_ptp* ++ ++ARASAN NAND CONTROLLER DRIVER ++M: Miquel Raynal <miquel.raynal@bootlin.com> ++M: Naga Sureshkumar Relli <nagasure@xilinx.com> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/mtd/arasan,nand-controller.yaml ++F: drivers/mtd/nand/raw/arasan-nand-controller.c ++ ++ARC FRAMEBUFFER DRIVER ++M: Jaya Kumar <jayalk@intworks.biz> ++S: Maintained ++F: drivers/video/fbdev/arcfb.c ++F: drivers/video/fbdev/core/fb_defio.c ++ ++ARC PGU DRM DRIVER ++M: Alexey Brodkin <abrodkin@synopsys.com> ++S: Supported ++F: Documentation/devicetree/bindings/display/snps,arcpgu.txt ++F: drivers/gpu/drm/tiny/arcpgu.c ++ ++ARCNET NETWORK LAYER ++M: Michael Grzeschik <m.grzeschik@pengutronix.de> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/arcnet/ ++F: include/uapi/linux/if_arcnet.h ++ ++ARM ARCHITECTED TIMER DRIVER ++M: Mark Rutland <mark.rutland@arm.com> ++M: Marc Zyngier <maz@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/include/asm/arch_timer.h ++F: arch/arm64/include/asm/arch_timer.h ++F: drivers/clocksource/arm_arch_timer.c ++ ++ARM HDLCD DRM DRIVER ++M: Liviu Dudau <liviu.dudau@arm.com> ++S: Supported ++F: Documentation/devicetree/bindings/display/arm,hdlcd.txt ++F: drivers/gpu/drm/arm/hdlcd_* ++ ++ARM INTEGRATOR, VERSATILE AND REALVIEW SUPPORT ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/arm,integrator.yaml ++F: Documentation/devicetree/bindings/arm/arm,realview.yaml ++F: Documentation/devicetree/bindings/arm/arm,versatile.yaml ++F: Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml ++F: Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml ++F: Documentation/devicetree/bindings/clock/arm,syscon-icst.yaml ++F: Documentation/devicetree/bindings/i2c/i2c-versatile.txt ++F: Documentation/devicetree/bindings/interrupt-controller/arm,versatile-fpga-irq.txt ++F: Documentation/devicetree/bindings/mtd/arm-versatile.txt ++F: arch/arm/boot/dts/arm-realview-* ++F: arch/arm/boot/dts/integrator* ++F: arch/arm/boot/dts/versatile* ++F: arch/arm/mach-integrator/ ++F: arch/arm/mach-realview/ ++F: arch/arm/mach-versatile/ ++F: arch/arm/plat-versatile/ ++F: drivers/bus/arm-integrator-lm.c ++F: drivers/clk/versatile/ ++F: drivers/i2c/busses/i2c-versatile.c ++F: drivers/irqchip/irq-versatile-fpga.c ++F: drivers/mtd/maps/physmap-versatile.* ++F: drivers/power/reset/arm-versatile-reboot.c ++F: drivers/soc/versatile/ ++ ++ARM KOMEDA DRM-KMS DRIVER ++M: James (Qian) Wang <james.qian.wang@arm.com> ++M: Liviu Dudau <liviu.dudau@arm.com> ++M: Mihail Atanassov <mihail.atanassov@arm.com> ++L: Mali DP Maintainers <malidp@foss.arm.com> ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/arm,komeda.txt ++F: Documentation/gpu/komeda-kms.rst ++F: drivers/gpu/drm/arm/display/include/ ++F: drivers/gpu/drm/arm/display/komeda/ ++ ++ARM MALI PANFROST DRM DRIVER ++M: Rob Herring <robh@kernel.org> ++M: Tomeu Vizoso <tomeu.vizoso@collabora.com> ++R: Steven Price <steven.price@arm.com> ++R: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/panfrost/ ++F: include/uapi/drm/panfrost_drm.h ++ ++ARM MALI-DP DRM DRIVER ++M: Liviu Dudau <liviu.dudau@arm.com> ++M: Brian Starkey <brian.starkey@arm.com> ++L: Mali DP Maintainers <malidp@foss.arm.com> ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/arm,malidp.txt ++F: Documentation/gpu/afbc.rst ++F: drivers/gpu/drm/arm/ ++ ++ARM MFM AND FLOPPY DRIVERS ++M: Ian Molton <spyro@f2s.com> ++S: Maintained ++F: arch/arm/include/asm/floppy.h ++F: arch/arm/mach-rpc/floppydma.S ++ ++ARM PMU PROFILING AND DEBUGGING ++M: Will Deacon <will@kernel.org> ++M: Mark Rutland <mark.rutland@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/pmu.yaml ++F: Documentation/devicetree/bindings/perf/ ++F: arch/arm*/include/asm/hw_breakpoint.h ++F: arch/arm*/include/asm/perf_event.h ++F: arch/arm*/kernel/hw_breakpoint.c ++F: arch/arm*/kernel/perf_* ++F: drivers/perf/ ++F: include/linux/perf/arm_pmu.h ++ ++ARM PORT ++M: Russell King <linux@armlinux.org.uk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Odd Fixes ++W: http://www.armlinux.org.uk/ ++T: git git://git.armlinux.org.uk/~rmk/linux-arm.git ++F: arch/arm/ ++X: arch/arm/boot/dts/ ++ ++ARM PRIMECELL AACI PL041 DRIVER ++M: Russell King <linux@armlinux.org.uk> ++S: Odd Fixes ++F: sound/arm/aaci.* ++ ++ARM PRIMECELL BUS SUPPORT ++M: Russell King <linux@armlinux.org.uk> ++S: Odd Fixes ++F: drivers/amba/ ++F: include/linux/amba/bus.h ++ ++ARM PRIMECELL PL35X NAND CONTROLLER DRIVER ++M: Miquel Raynal <miquel.raynal@bootlin.com> ++M: Naga Sureshkumar Relli <nagasure@xilinx.com> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/mtd/arm,pl353-nand-r2p1.yaml ++F: drivers/mtd/nand/raw/pl35x-nand-controller.c ++ ++ARM PRIMECELL PL35X SMC DRIVER ++M: Miquel Raynal <miquel.raynal@bootlin.com> ++M: Naga Sureshkumar Relli <nagasure@xilinx.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/memory-controllers/arm,pl353-smc.yaml ++F: drivers/memory/pl353-smc.c ++ ++ARM PRIMECELL CLCD PL110 DRIVER ++M: Russell King <linux@armlinux.org.uk> ++S: Odd Fixes ++F: drivers/video/fbdev/amba-clcd.* ++ ++ARM PRIMECELL KMI PL050 DRIVER ++M: Russell King <linux@armlinux.org.uk> ++S: Odd Fixes ++F: drivers/input/serio/ambakmi.* ++F: include/linux/amba/kmi.h ++ ++ARM PRIMECELL MMCI PL180/1 DRIVER ++M: Russell King <linux@armlinux.org.uk> ++S: Odd Fixes ++F: drivers/mmc/host/mmci.* ++F: include/linux/amba/mmci.h ++ ++ARM PRIMECELL SSP PL022 SPI DRIVER ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/spi/spi-pl022.yaml ++F: drivers/spi/spi-pl022.c ++ ++ARM PRIMECELL UART PL010 AND PL011 DRIVERS ++M: Russell King <linux@armlinux.org.uk> ++S: Odd Fixes ++F: drivers/tty/serial/amba-pl01*.c ++F: include/linux/amba/serial.h ++ ++ARM PRIMECELL VIC PL190/PL192 DRIVER ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/interrupt-controller/arm,vic.txt ++F: drivers/irqchip/irq-vic.c ++ ++ARM SMC WATCHDOG DRIVER ++M: Julius Werner <jwerner@chromium.org> ++R: Evan Benn <evanbenn@chromium.org> ++S: Maintained ++F: Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml ++F: drivers/watchdog/arm_smc_wdt.c ++ ++ARM SMMU DRIVERS ++M: Will Deacon <will@kernel.org> ++R: Robin Murphy <robin.murphy@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/iommu/arm,smmu* ++F: drivers/iommu/arm/ ++F: drivers/iommu/io-pgtable-arm* ++ ++ARM AND ARM64 SoC SUB-ARCHITECTURES (COMMON PARTS) ++M: Arnd Bergmann <arnd@arndb.de> ++M: Olof Johansson <olof@lixom.net> ++M: soc@kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git ++F: arch/arm/boot/dts/Makefile ++F: arch/arm64/boot/dts/Makefile ++ ++ARM SUB-ARCHITECTURES ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git ++F: arch/arm/mach-*/ ++F: arch/arm/plat-*/ ++ ++ARM/ACTIONS SEMI ARCHITECTURE ++M: Andreas Färber <afaerber@suse.de> ++M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-actions@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/actions.yaml ++F: Documentation/devicetree/bindings/clock/actions,owl-cmu.txt ++F: Documentation/devicetree/bindings/dma/owl-dma.yaml ++F: Documentation/devicetree/bindings/i2c/i2c-owl.yaml ++F: Documentation/devicetree/bindings/interrupt-controller/actions,owl-sirq.yaml ++F: Documentation/devicetree/bindings/mmc/owl-mmc.yaml ++F: Documentation/devicetree/bindings/net/actions,owl-emac.yaml ++F: Documentation/devicetree/bindings/pinctrl/actions,* ++F: Documentation/devicetree/bindings/power/actions,owl-sps.txt ++F: Documentation/devicetree/bindings/timer/actions,owl-timer.txt ++F: arch/arm/boot/dts/owl-* ++F: arch/arm/mach-actions/ ++F: arch/arm64/boot/dts/actions/ ++F: drivers/clk/actions/ ++F: drivers/clocksource/timer-owl* ++F: drivers/dma/owl-dma.c ++F: drivers/i2c/busses/i2c-owl.c ++F: drivers/irqchip/irq-owl-sirq.c ++F: drivers/mmc/host/owl-mmc.c ++F: drivers/net/ethernet/actions/ ++F: drivers/pinctrl/actions/* ++F: drivers/soc/actions/ ++F: include/dt-bindings/power/owl-* ++F: include/dt-bindings/reset/actions,* ++F: include/linux/soc/actions/ ++N: owl ++ ++ARM/ADS SPHERE MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/AFEB9260 MACHINE SUPPORT ++M: Sergey Lapin <slapin@ossfans.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/AJECO 1ARM MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/Allwinner SoC Clock Support ++M: Emilio López <emilio@elopez.com.ar> ++S: Maintained ++F: drivers/clk/sunxi/ ++ ++ARM/Allwinner sunXi SoC support ++M: Maxime Ripard <mripard@kernel.org> ++M: Chen-Yu Tsai <wens@csie.org> ++R: Jernej Skrabec <jernej.skrabec@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git ++L: linux-sunxi@lists.linux.dev ++F: arch/arm/mach-sunxi/ ++F: arch/arm64/boot/dts/allwinner/ ++F: drivers/clk/sunxi-ng/ ++F: drivers/pinctrl/sunxi/ ++F: drivers/soc/sunxi/ ++N: allwinner ++N: sun[x456789]i ++N: sun50i ++ ++ARM/Amlogic Meson SoC CLOCK FRAMEWORK ++M: Neil Armstrong <narmstrong@baylibre.com> ++M: Jerome Brunet <jbrunet@baylibre.com> ++L: linux-amlogic@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/clock/amlogic* ++F: drivers/clk/meson/ ++F: include/dt-bindings/clock/gxbb* ++F: include/dt-bindings/clock/meson* ++ ++ARM/Amlogic Meson SoC Crypto Drivers ++M: Corentin Labbe <clabbe@baylibre.com> ++L: linux-crypto@vger.kernel.org ++L: linux-amlogic@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/crypto/amlogic* ++F: drivers/crypto/amlogic/ ++ ++ARM/Amlogic Meson SoC Sound Drivers ++M: Jerome Brunet <jbrunet@baylibre.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/sound/amlogic* ++F: sound/soc/meson/ ++ ++ARM/Amlogic Meson SoC support ++M: Neil Armstrong <narmstrong@baylibre.com> ++M: Kevin Hilman <khilman@baylibre.com> ++R: Jerome Brunet <jbrunet@baylibre.com> ++R: Martin Blumenstingl <martin.blumenstingl@googlemail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-amlogic@lists.infradead.org ++S: Maintained ++W: http://linux-meson.com/ ++F: arch/arm/boot/dts/meson* ++F: arch/arm/mach-meson/ ++F: arch/arm64/boot/dts/amlogic/ ++F: drivers/mmc/host/meson* ++F: drivers/pinctrl/meson/ ++F: drivers/rtc/rtc-meson* ++F: drivers/soc/amlogic/ ++N: meson ++ ++ARM/Annapurna Labs ALPINE ARCHITECTURE ++M: Tsahee Zidenberg <tsahee@annapurnalabs.com> ++M: Antoine Tenart <atenart@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/boot/dts/alpine* ++F: arch/arm/mach-alpine/ ++F: arch/arm64/boot/dts/amazon/ ++F: drivers/*/*alpine* ++ ++ARM/APPLE MACHINE SUPPORT ++M: Hector Martin <marcan@marcan.st> ++M: Sven Peter <sven@svenpeter.dev> ++R: Alyssa Rosenzweig <alyssa@rosenzweig.io> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: https://asahilinux.org ++B: https://github.com/AsahiLinux/linux/issues ++C: irc://irc.oftc.net/asahi-dev ++T: git https://github.com/AsahiLinux/linux.git ++F: Documentation/devicetree/bindings/arm/apple.yaml ++F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml ++F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml ++F: arch/arm64/boot/dts/apple/ ++F: drivers/irqchip/irq-apple-aic.c ++F: include/dt-bindings/interrupt-controller/apple-aic.h ++F: include/dt-bindings/pinctrl/apple.h ++ ++ARM/ARTPEC MACHINE SUPPORT ++M: Jesper Nilsson <jesper.nilsson@axis.com> ++M: Lars Persson <lars.persson@axis.com> ++L: linux-arm-kernel@axis.com ++S: Maintained ++F: Documentation/devicetree/bindings/pinctrl/axis,artpec6-pinctrl.txt ++F: arch/arm/boot/dts/artpec6* ++F: arch/arm/mach-artpec ++F: drivers/clk/axis ++F: drivers/crypto/axis ++F: drivers/mmc/host/usdhi6rol0.c ++F: drivers/pinctrl/pinctrl-artpec* ++ ++ARM/ASPEED I2C DRIVER ++M: Brendan Higgins <brendanhiggins@google.com> ++R: Benjamin Herrenschmidt <benh@kernel.crashing.org> ++R: Joel Stanley <joel@jms.id.au> ++L: linux-i2c@vger.kernel.org ++L: openbmc@lists.ozlabs.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-aspeed.txt ++F: Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt ++F: drivers/i2c/busses/i2c-aspeed.c ++F: drivers/irqchip/irq-aspeed-i2c-ic.c ++ ++ARM/ASPEED MACHINE SUPPORT ++M: Joel Stanley <joel@jms.id.au> ++R: Andrew Jeffery <andrew@aj.id.au> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers) ++S: Supported ++Q: https://patchwork.ozlabs.org/project/linux-aspeed/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed.git ++F: arch/arm/boot/dts/aspeed-* ++F: arch/arm/mach-aspeed/ ++N: aspeed ++ ++ARM/BITMAIN ARCHITECTURE ++M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/bitmain.yaml ++F: Documentation/devicetree/bindings/clock/bitmain,bm1880-clk.yaml ++F: Documentation/devicetree/bindings/pinctrl/bitmain,bm1880-pinctrl.txt ++F: arch/arm64/boot/dts/bitmain/ ++F: drivers/clk/clk-bm1880.c ++F: drivers/pinctrl/pinctrl-bm1880.c ++ ++ARM/CALXEDA HIGHBANK ARCHITECTURE ++M: Andre Przywara <andre.przywara@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/boot/dts/ecx-*.dts* ++F: arch/arm/boot/dts/highbank.dts ++F: arch/arm/mach-highbank/ ++ ++ARM/CAVIUM NETWORKS CNS3XXX MACHINE SUPPORT ++M: Krzysztof Halasa <khalasa@piap.pl> ++S: Maintained ++F: arch/arm/mach-cns3xxx/ ++ ++ARM/CAVIUM THUNDER NETWORK DRIVER ++M: Sunil Goutham <sgoutham@marvell.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: drivers/net/ethernet/cavium/thunder/ ++ ++ARM/CIRRUS LOGIC BK3 MACHINE SUPPORT ++M: Lukasz Majewski <lukma@denx.de> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/mach-ep93xx/ts72xx.c ++ ++ARM/CIRRUS LOGIC CLPS711X ARM ARCHITECTURE ++M: Alexander Shiyan <shc_work@mail.ru> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Odd Fixes ++N: clps711x ++ ++ARM/CIRRUS LOGIC EDB9315A MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/CIRRUS LOGIC EP93XX ARM ARCHITECTURE ++M: Hartley Sweeten <hsweeten@visionengravers.com> ++M: Alexander Sverdlin <alexander.sverdlin@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/mach-ep93xx/ ++F: arch/arm/mach-ep93xx/include/mach/ ++ ++ARM/CLKDEV SUPPORT ++M: Russell King <linux@armlinux.org.uk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.armlinux.org.uk/~rmk/linux-arm.git clkdev ++F: drivers/clk/clkdev.c ++ ++ARM/CONEXANT DIGICOLOR MACHINE SUPPORT ++M: Baruch Siach <baruch@tkos.co.il> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/boot/dts/cx92755* ++N: digicolor ++ ++ARM/CONTEC MICRO9 MACHINE SUPPORT ++M: Hubert Feurstein <hubert.feurstein@contec.at> ++S: Maintained ++F: arch/arm/mach-ep93xx/micro9.c ++ ++ARM/CORESIGHT FRAMEWORK AND DRIVERS ++M: Mathieu Poirier <mathieu.poirier@linaro.org> ++M: Suzuki K Poulose <suzuki.poulose@arm.com> ++R: Mike Leach <mike.leach@linaro.org> ++R: Leo Yan <leo.yan@linaro.org> ++L: coresight@lists.linaro.org (moderated for non-subscribers) ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git ++F: Documentation/ABI/testing/sysfs-bus-coresight-devices-* ++F: Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt ++F: Documentation/devicetree/bindings/arm/coresight-cti.yaml ++F: Documentation/devicetree/bindings/arm/coresight.txt ++F: Documentation/devicetree/bindings/arm/ete.yaml ++F: Documentation/devicetree/bindings/arm/trbe.yaml ++F: Documentation/trace/coresight/* ++F: drivers/hwtracing/coresight/* ++F: include/dt-bindings/arm/coresight-cti-dt.h ++F: include/linux/coresight* ++F: tools/perf/arch/arm/util/auxtrace.c ++F: tools/perf/arch/arm/util/cs-etm.c ++F: tools/perf/arch/arm/util/cs-etm.h ++F: tools/perf/arch/arm/util/pmu.c ++F: tools/perf/util/cs-etm-decoder/* ++F: tools/perf/util/cs-etm.* ++ ++ARM/CORGI MACHINE SUPPORT ++M: Richard Purdie <rpurdie@rpsys.net> ++S: Maintained ++ ++ARM/CORTINA SYSTEMS GEMINI ARM ARCHITECTURE ++M: Hans Ulli Kroll <ulli.kroll@googlemail.com> ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://github.com/ulli-kroll/linux.git ++F: Documentation/devicetree/bindings/arm/gemini.txt ++F: Documentation/devicetree/bindings/net/cortina,gemini-ethernet.txt ++F: Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt ++F: Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt ++F: arch/arm/boot/dts/gemini* ++F: arch/arm/mach-gemini/ ++F: drivers/crypto/gemini/ ++F: drivers/net/ethernet/cortina/ ++F: drivers/pinctrl/pinctrl-gemini.c ++F: drivers/rtc/rtc-ftrtc010.c ++ ++ARM/CZ.NIC TURRIS SUPPORT ++M: Marek Behún <kabel@kernel.org> ++S: Maintained ++W: https://www.turris.cz/ ++F: Documentation/ABI/testing/debugfs-moxtet ++F: Documentation/ABI/testing/sysfs-bus-moxtet-devices ++F: Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm ++F: Documentation/devicetree/bindings/bus/moxtet.txt ++F: Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt ++F: Documentation/devicetree/bindings/gpio/gpio-moxtet.txt ++F: Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml ++F: Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt ++F: drivers/bus/moxtet.c ++F: drivers/firmware/turris-mox-rwtm.c ++F: drivers/leds/leds-turris-omnia.c ++F: drivers/mailbox/armada-37xx-rwtm-mailbox.c ++F: drivers/gpio/gpio-moxtet.c ++F: drivers/watchdog/armada_37xx_wdt.c ++F: include/dt-bindings/bus/moxtet.h ++F: include/linux/armada-37xx-rwtm-mailbox.h ++F: include/linux/moxtet.h ++ ++ARM/EZX SMARTPHONES (A780, A910, A1200, E680, ROKR E2 and ROKR E6) ++M: Robert Jarzmik <robert.jarzmik@free.fr> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/mach-pxa/ezx.c ++ ++ARM/FARADAY FA526 PORT ++M: Hans Ulli Kroll <ulli.kroll@googlemail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.berlios.de/gemini-board ++F: arch/arm/mm/*-fa* ++ ++ARM/FOOTBRIDGE ARCHITECTURE ++M: Russell King <linux@armlinux.org.uk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.armlinux.org.uk/ ++F: arch/arm/include/asm/hardware/dec21285.h ++F: arch/arm/mach-footbridge/ ++ ++ARM/FREESCALE IMX / MXC ARM ARCHITECTURE ++M: Shawn Guo <shawnguo@kernel.org> ++M: Sascha Hauer <s.hauer@pengutronix.de> ++R: Pengutronix Kernel Team <kernel@pengutronix.de> ++R: Fabio Estevam <festevam@gmail.com> ++R: NXP Linux Team <linux-imx@nxp.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git ++X: drivers/media/i2c/ ++N: imx ++N: mxs ++ ++ARM/FREESCALE LAYERSCAPE ARM ARCHITECTURE ++M: Shawn Guo <shawnguo@kernel.org> ++M: Li Yang <leoyang.li@nxp.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git ++F: arch/arm/boot/dts/ls1021a* ++F: arch/arm64/boot/dts/freescale/fsl-* ++F: arch/arm64/boot/dts/freescale/qoriq-* ++ ++ARM/FREESCALE VYBRID ARM ARCHITECTURE ++M: Shawn Guo <shawnguo@kernel.org> ++M: Sascha Hauer <s.hauer@pengutronix.de> ++R: Pengutronix Kernel Team <kernel@pengutronix.de> ++R: Stefan Agner <stefan@agner.ch> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git ++F: arch/arm/boot/dts/vf* ++F: arch/arm/mach-imx/*vf610* ++ ++ARM/GLOMATION GESBC9312SX MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/GUMSTIX MACHINE SUPPORT ++M: Steve Sakoman <sakoman@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/H4700 (HP IPAQ HX4700) MACHINE SUPPORT ++M: Philipp Zabel <philipp.zabel@gmail.com> ++M: Paul Parsons <lost.distance@yahoo.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/mach-pxa/hx4700.c ++F: arch/arm/mach-pxa/include/mach/hx4700.h ++F: sound/soc/pxa/hx4700.c ++ ++ARM/HISILICON SOC SUPPORT ++M: Wei Xu <xuwei5@hisilicon.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++W: http://www.hisilicon.com ++T: git git://github.com/hisilicon/linux-hisi.git ++F: arch/arm/boot/dts/hi3* ++F: arch/arm/boot/dts/hip* ++F: arch/arm/boot/dts/hisi* ++F: arch/arm/mach-hisi/ ++F: arch/arm64/boot/dts/hisilicon/ ++ ++ARM/HP JORNADA 7XX MACHINE SUPPORT ++M: Kristoffer Ericson <kristoffer.ericson@gmail.com> ++S: Maintained ++W: www.jlime.com ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kristoffer/linux-hpc.git ++F: arch/arm/mach-sa1100/include/mach/jornada720.h ++F: arch/arm/mach-sa1100/jornada720.c ++ ++ARM/IGEP MACHINE SUPPORT ++M: Enric Balletbo i Serra <eballetbo@gmail.com> ++M: Javier Martinez Canillas <javier@dowhile0.org> ++L: linux-omap@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/boot/dts/omap3-igep* ++ ++ARM/INCOME PXA270 SUPPORT ++M: Marek Vasut <marek.vasut@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/mach-pxa/colibri-pxa270-income.c ++ ++ARM/INTEL IOP32X ARM ARCHITECTURE ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/INTEL IQ81342EX MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/INTEL IXDP2850 MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/INTEL IXP4XX ARM ARCHITECTURE ++M: Linus Walleij <linusw@kernel.org> ++M: Imre Kaloz <kaloz@openwrt.org> ++M: Krzysztof Halasa <khalasa@piap.pl> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml ++F: Documentation/devicetree/bindings/bus/intel,ixp4xx-expansion-bus-controller.yaml ++F: Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt ++F: Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.yaml ++F: Documentation/devicetree/bindings/timer/intel,ixp4xx-timer.yaml ++F: arch/arm/mach-ixp4xx/ ++F: drivers/bus/intel-ixp4xx-eb.c ++F: drivers/clocksource/timer-ixp4xx.c ++F: drivers/crypto/ixp4xx_crypto.c ++F: drivers/gpio/gpio-ixp4xx.c ++F: drivers/irqchip/irq-ixp4xx.c ++F: include/linux/irqchip/irq-ixp4xx.h ++F: include/linux/platform_data/timer-ixp4xx.h ++ ++ARM/INTEL KEEMBAY ARCHITECTURE ++M: Paul J. Murphy <paul.j.murphy@intel.com> ++M: Daniele Alessandrelli <daniele.alessandrelli@intel.com> ++S: Maintained ++F: Documentation/devicetree/bindings/arm/intel,keembay.yaml ++F: arch/arm64/boot/dts/intel/keembay-evm.dts ++F: arch/arm64/boot/dts/intel/keembay-soc.dtsi ++ ++ARM/INTEL RESEARCH IMOTE/STARGATE 2 MACHINE SUPPORT ++M: Jonathan Cameron <jic23@cam.ac.uk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/mach-pxa/stargate2.c ++F: drivers/pcmcia/pxa2xx_stargate2.c ++ ++ARM/INTEL XSC3 (MANZANO) ARM CORE ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/IP FABRICS DOUBLE ESPRESSO MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/LG1K ARCHITECTURE ++M: Chanho Min <chanho.min@lge.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm64/boot/dts/lg/ ++ ++ARM/LOGICPD PXA270 MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/LPC18XX ARCHITECTURE ++M: Vladimir Zapolskiy <vz@mleia.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt ++F: arch/arm/boot/dts/lpc43* ++F: drivers/i2c/busses/i2c-lpc2k.c ++F: drivers/memory/pl172.c ++F: drivers/mtd/spi-nor/controllers/nxp-spifi.c ++F: drivers/rtc/rtc-lpc24xx.c ++N: lpc18xx ++ ++ARM/LPC32XX SOC SUPPORT ++M: Vladimir Zapolskiy <vz@mleia.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://github.com/vzapolskiy/linux-lpc32xx.git ++F: Documentation/devicetree/bindings/i2c/i2c-pnx.txt ++F: arch/arm/boot/dts/lpc32* ++F: arch/arm/mach-lpc32xx/ ++F: drivers/i2c/busses/i2c-pnx.c ++F: drivers/net/ethernet/nxp/lpc_eth.c ++F: drivers/usb/host/ohci-nxp.c ++F: drivers/watchdog/pnx4008_wdt.c ++N: lpc32xx ++ ++ARM/MAGICIAN MACHINE SUPPORT ++M: Philipp Zabel <philipp.zabel@gmail.com> ++S: Maintained ++ ++ARM/Marvell Dove/MV78xx0/Orion SOC support ++M: Andrew Lunn <andrew@lunn.ch> ++M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> ++M: Gregory Clement <gregory.clement@bootlin.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu.git ++F: Documentation/devicetree/bindings/soc/dove/ ++F: arch/arm/boot/dts/dove* ++F: arch/arm/boot/dts/orion5x* ++F: arch/arm/mach-dove/ ++F: arch/arm/mach-mv78xx0/ ++F: arch/arm/mach-orion5x/ ++F: arch/arm/plat-orion/ ++F: drivers/soc/dove/ ++ ++ARM/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K, CN9130 SOC support ++M: Andrew Lunn <andrew@lunn.ch> ++M: Gregory Clement <gregory.clement@bootlin.com> ++M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu.git ++F: arch/arm/boot/dts/armada* ++F: arch/arm/boot/dts/kirkwood* ++F: arch/arm/configs/mvebu_*_defconfig ++F: arch/arm/mach-mvebu/ ++F: arch/arm64/boot/dts/marvell/armada* ++F: arch/arm64/boot/dts/marvell/cn913* ++F: drivers/cpufreq/armada-37xx-cpufreq.c ++F: drivers/cpufreq/armada-8k-cpufreq.c ++F: drivers/cpufreq/mvebu-cpufreq.c ++F: drivers/irqchip/irq-armada-370-xp.c ++F: drivers/irqchip/irq-mvebu-* ++F: drivers/pinctrl/mvebu/ ++F: drivers/rtc/rtc-armada38x.c ++ ++ARM/Mediatek RTC DRIVER ++M: Eddie Huang <eddie.huang@mediatek.com> ++M: Sean Wang <sean.wang@mediatek.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/rtc/rtc-mt2712.txt ++F: Documentation/devicetree/bindings/rtc/rtc-mt7622.txt ++F: drivers/rtc/rtc-mt2712.c ++F: drivers/rtc/rtc-mt6397.c ++F: drivers/rtc/rtc-mt7622.c ++ ++ARM/Mediatek SoC support ++M: Matthias Brugger <matthias.bgg@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: https://mtk.wiki.kernel.org/ ++C: irc://chat.freenode.net/linux-mediatek ++F: arch/arm/boot/dts/mt6* ++F: arch/arm/boot/dts/mt7* ++F: arch/arm/boot/dts/mt8* ++F: arch/arm/mach-mediatek/ ++F: arch/arm64/boot/dts/mediatek/ ++F: drivers/soc/mediatek/ ++N: mtk ++N: mt[678] ++K: mediatek ++ ++ARM/Mediatek USB3 PHY DRIVER ++M: Chunfeng Yun <chunfeng.yun@mediatek.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/phy/mediatek,* ++F: drivers/phy/mediatek/ ++ ++ARM/Microchip (AT91) SoC support ++M: Nicolas Ferre <nicolas.ferre@microchip.com> ++M: Alexandre Belloni <alexandre.belloni@bootlin.com> ++M: Ludovic Desroches <ludovic.desroches@microchip.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++W: http://www.linux4sam.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux.git ++F: arch/arm/boot/dts/at91*.dts ++F: arch/arm/boot/dts/at91*.dtsi ++F: arch/arm/boot/dts/sama*.dts ++F: arch/arm/boot/dts/sama*.dtsi ++F: arch/arm/include/debug/at91.S ++F: arch/arm/mach-at91/ ++F: drivers/memory/atmel* ++F: drivers/watchdog/sama5d4_wdt.c ++F: include/soc/at91/ ++X: drivers/input/touchscreen/atmel_mxt_ts.c ++X: drivers/net/wireless/atmel/ ++N: at91 ++N: atmel ++ ++ARM/Microchip Sparx5 SoC support ++M: Lars Povlsen <lars.povlsen@microchip.com> ++M: Steen Hegelund <Steen.Hegelund@microchip.com> ++M: UNGLinuxDriver@microchip.com ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++T: git git://github.com/microchip-ung/linux-upstream.git ++F: arch/arm64/boot/dts/microchip/ ++F: drivers/pinctrl/pinctrl-microchip-sgpio.c ++N: sparx5 ++ ++Microchip Timer Counter Block (TCB) Capture Driver ++M: Kamel Bouhara <kamel.bouhara@bootlin.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: drivers/counter/microchip-tcb-capture.c ++ ++ARM/MIOA701 MACHINE SUPPORT ++M: Robert Jarzmik <robert.jarzmik@free.fr> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/mach-pxa/mioa701.c ++ ++ARM/MStar/Sigmastar Armv7 SoC support ++M: Daniel Palmer <daniel@thingy.jp> ++M: Romain Perier <romain.perier@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://linux-chenxing.org/ ++T: git git://github.com/linux-chenxing/linux.git ++F: Documentation/devicetree/bindings/arm/mstar/* ++F: Documentation/devicetree/bindings/clock/mstar,msc313-mpll.yaml ++F: Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml ++F: arch/arm/boot/dts/mstar-* ++F: arch/arm/mach-mstar/ ++F: drivers/clk/mstar/ ++F: drivers/gpio/gpio-msc313.c ++F: drivers/watchdog/msc313e_wdt.c ++F: include/dt-bindings/clock/mstar-* ++F: include/dt-bindings/gpio/msc313-gpio.h ++ ++ARM/NEC MOBILEPRO 900/c MACHINE SUPPORT ++M: Michael Petchkovsky <mkpetch@internode.on.net> ++S: Maintained ++ ++ARM/NOMADIK/Ux500 ARCHITECTURES ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git ++F: Documentation/devicetree/bindings/arm/ste-* ++F: Documentation/devicetree/bindings/arm/ux500.yaml ++F: Documentation/devicetree/bindings/arm/ux500/ ++F: Documentation/devicetree/bindings/i2c/i2c-nomadik.txt ++F: arch/arm/boot/dts/ste-* ++F: arch/arm/mach-nomadik/ ++F: arch/arm/mach-ux500/ ++F: drivers/clk/clk-nomadik.c ++F: drivers/clocksource/clksrc-dbx500-prcmu.c ++F: drivers/dma/ste_dma40* ++F: drivers/hwspinlock/u8500_hsem.c ++F: drivers/i2c/busses/i2c-nomadik.c ++F: drivers/iio/adc/ab8500-gpadc.c ++F: drivers/mfd/ab8500* ++F: drivers/mfd/abx500* ++F: drivers/mfd/db8500* ++F: drivers/pinctrl/nomadik/ ++F: drivers/rtc/rtc-ab8500.c ++F: drivers/rtc/rtc-pl031.c ++F: drivers/soc/ux500/ ++ ++ARM/NUVOTON NPCM ARCHITECTURE ++M: Avi Fishman <avifishman70@gmail.com> ++M: Tomer Maimon <tmaimon77@gmail.com> ++M: Tali Perry <tali.perry1@gmail.com> ++R: Patrick Venture <venture@google.com> ++R: Nancy Yuen <yuenn@google.com> ++R: Benjamin Fair <benjaminfair@google.com> ++L: openbmc@lists.ozlabs.org (moderated for non-subscribers) ++S: Supported ++F: Documentation/devicetree/bindings/*/*/*npcm* ++F: Documentation/devicetree/bindings/*/*npcm* ++F: arch/arm/boot/dts/nuvoton-npcm* ++F: arch/arm/mach-npcm/ ++F: drivers/*/*npcm* ++F: drivers/*/*/*npcm* ++F: include/dt-bindings/clock/nuvoton,npcm7xx-clock.h ++ ++ARM/NUVOTON WPCM450 ARCHITECTURE ++M: Jonathan Neuschäfer <j.neuschaefer@gmx.net> ++L: openbmc@lists.ozlabs.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/*/*wpcm* ++F: arch/arm/boot/dts/nuvoton-wpcm450* ++F: arch/arm/mach-npcm/wpcm450.c ++F: drivers/*/*wpcm* ++ ++ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT ++L: openmoko-kernel@lists.openmoko.org (subscribers-only) ++S: Orphan ++W: http://wiki.openmoko.org/wiki/Neo_FreeRunner ++F: arch/arm/mach-s3c/gta02.h ++F: arch/arm/mach-s3c/mach-gta02.c ++ ++ARM/Orion SoC/Technologic Systems TS-78xx platform support ++M: Alexander Clouter <alex@digriz.org.uk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.digriz.org.uk/ts78xx/kernel ++F: arch/arm/mach-orion5x/ts78xx-* ++ ++ARM/OXNAS platform support ++M: Neil Armstrong <narmstrong@baylibre.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-oxnas@groups.io (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/boot/dts/ox8*.dts* ++F: arch/arm/mach-oxnas/ ++F: drivers/power/reset/oxnas-restart.c ++N: oxnas ++ ++ARM/PALM TREO SUPPORT ++M: Tomas Cech <sleep_walker@suse.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://hackndev.com ++F: arch/arm/mach-pxa/palmtreo.* ++ ++ARM/PALMTX,PALMT5,PALMLD,PALMTE2,PALMTC SUPPORT ++M: Marek Vasut <marek.vasut@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://hackndev.com ++F: arch/arm/mach-pxa/include/mach/palmld.h ++F: arch/arm/mach-pxa/include/mach/palmtc.h ++F: arch/arm/mach-pxa/include/mach/palmtx.h ++F: arch/arm/mach-pxa/palmld.c ++F: arch/arm/mach-pxa/palmt5.* ++F: arch/arm/mach-pxa/palmtc.c ++F: arch/arm/mach-pxa/palmte2.* ++F: arch/arm/mach-pxa/palmtx.c ++ ++ARM/PALMZ72 SUPPORT ++M: Sergey Lapin <slapin@ossfans.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://hackndev.com ++F: arch/arm/mach-pxa/palmz72.* ++ ++ARM/PLEB SUPPORT ++M: Peter Chubb <pleb@gelato.unsw.edu.au> ++S: Maintained ++W: http://www.disy.cse.unsw.edu.au/Hardware/PLEB ++ ++ARM/PT DIGITAL BOARD PORT ++M: Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.armlinux.org.uk/ ++ ++ARM/QUALCOMM SUPPORT ++M: Andy Gross <agross@kernel.org> ++M: Bjorn Andersson <bjorn.andersson@linaro.org> ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux.git ++F: Documentation/devicetree/bindings/*/qcom* ++F: Documentation/devicetree/bindings/soc/qcom/ ++F: arch/arm/boot/dts/qcom-*.dts ++F: arch/arm/boot/dts/qcom-*.dtsi ++F: arch/arm/mach-qcom/ ++F: arch/arm64/boot/dts/qcom/ ++F: drivers/*/*/qcom* ++F: drivers/*/*/qcom/ ++F: drivers/*/pm8???-* ++F: drivers/*/qcom* ++F: drivers/*/qcom/ ++F: drivers/bluetooth/btqcomsmd.c ++F: drivers/clocksource/timer-qcom.c ++F: drivers/cpuidle/cpuidle-qcom-spm.c ++F: drivers/extcon/extcon-qcom* ++F: drivers/i2c/busses/i2c-qcom-geni.c ++F: drivers/i2c/busses/i2c-qup.c ++F: drivers/iommu/msm* ++F: drivers/mfd/ssbi.c ++F: drivers/mmc/host/mmci_qcom* ++F: drivers/mmc/host/sdhci-msm.c ++F: drivers/pci/controller/dwc/pcie-qcom.c ++F: drivers/phy/qualcomm/ ++F: drivers/power/*/msm* ++F: drivers/reset/reset-qcom-* ++F: drivers/scsi/ufs/ufs-qcom* ++F: drivers/spi/spi-geni-qcom.c ++F: drivers/spi/spi-qcom-qspi.c ++F: drivers/spi/spi-qup.c ++F: drivers/tty/serial/msm_serial.c ++F: drivers/usb/dwc3/dwc3-qcom.c ++F: include/dt-bindings/*/qcom* ++F: include/linux/*/qcom* ++F: include/linux/soc/qcom/ ++ ++ARM/RADISYS ENP2611 MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/RDA MICRO ARCHITECTURE ++M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-unisoc@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/rda.yaml ++F: Documentation/devicetree/bindings/gpio/gpio-rda.yaml ++F: Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.txt ++F: Documentation/devicetree/bindings/serial/rda,8810pl-uart.txt ++F: Documentation/devicetree/bindings/timer/rda,8810pl-timer.txt ++F: arch/arm/boot/dts/rda8810pl-* ++F: drivers/clocksource/timer-rda.c ++F: drivers/gpio/gpio-rda.c ++F: drivers/irqchip/irq-rda-intc.c ++F: drivers/tty/serial/rda-uart.c ++ ++ARM/REALTEK ARCHITECTURE ++M: Andreas Färber <afaerber@suse.de> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-realtek-soc@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/realtek.yaml ++F: arch/arm/boot/dts/rtd* ++F: arch/arm/mach-realtek/ ++F: arch/arm64/boot/dts/realtek/ ++ ++ARM/RENESAS ARM64 ARCHITECTURE ++M: Geert Uytterhoeven <geert+renesas@glider.be> ++M: Magnus Damm <magnus.damm@gmail.com> ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++Q: http://patchwork.kernel.org/project/linux-renesas-soc/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git next ++F: Documentation/devicetree/bindings/arm/renesas.yaml ++F: arch/arm64/boot/dts/renesas/ ++F: drivers/soc/renesas/ ++F: include/linux/soc/renesas/ ++ ++ARM/RISCPC ARCHITECTURE ++M: Russell King <linux@armlinux.org.uk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.armlinux.org.uk/ ++F: arch/arm/include/asm/hardware/entry-macro-iomd.S ++F: arch/arm/include/asm/hardware/ioc.h ++F: arch/arm/include/asm/hardware/iomd.h ++F: arch/arm/include/asm/hardware/memc.h ++F: arch/arm/mach-rpc/ ++F: drivers/net/ethernet/8390/etherh.c ++F: drivers/net/ethernet/i825xx/ether1* ++F: drivers/net/ethernet/seeq/ether3* ++F: drivers/scsi/arm/ ++ ++ARM/Rockchip SoC support ++M: Heiko Stuebner <heiko@sntech.de> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-rockchip@lists.infradead.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git ++F: Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml ++F: Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml ++F: Documentation/devicetree/bindings/spi/spi-rockchip.yaml ++F: arch/arm/boot/dts/rk3* ++F: arch/arm/boot/dts/rv1108* ++F: arch/arm/mach-rockchip/ ++F: drivers/*/*/*rockchip* ++F: drivers/*/*rockchip* ++F: drivers/clk/rockchip/ ++F: drivers/i2c/busses/i2c-rk3x.c ++F: sound/soc/rockchip/ ++N: rockchip ++ ++ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++Q: https://patchwork.kernel.org/project/linux-samsung-soc/list/ ++F: Documentation/arm/samsung/ ++F: Documentation/devicetree/bindings/arm/samsung/ ++F: Documentation/devicetree/bindings/power/pd-samsung.yaml ++F: arch/arm/boot/dts/exynos* ++F: arch/arm/boot/dts/s3c* ++F: arch/arm/boot/dts/s5p* ++F: arch/arm/mach-exynos*/ ++F: arch/arm/mach-s3c/ ++F: arch/arm/mach-s5p*/ ++F: arch/arm64/boot/dts/exynos/ ++F: drivers/*/*/*s3c24* ++F: drivers/*/*s3c24* ++F: drivers/*/*s3c64xx* ++F: drivers/*/*s5pv210* ++F: drivers/clocksource/samsung_pwm_timer.c ++F: drivers/memory/samsung/ ++F: drivers/pwm/pwm-samsung.c ++F: drivers/soc/samsung/ ++F: drivers/tty/serial/samsung* ++F: include/clocksource/samsung_pwm.h ++F: include/linux/platform_data/*s3c* ++F: include/linux/serial_s3c.h ++F: include/linux/soc/samsung/ ++N: exynos ++N: s3c2410 ++N: s3c64xx ++N: s5pv210 ++ ++ARM/SAMSUNG S5P SERIES 2D GRAPHICS ACCELERATION (G2D) SUPPORT ++M: Andrzej Hajda <a.hajda@samsung.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/platform/s5p-g2d/ ++ ++ARM/SAMSUNG S5P SERIES HDMI CEC SUBSYSTEM SUPPORT ++M: Marek Szyprowski <m.szyprowski@samsung.com> ++L: linux-samsung-soc@vger.kernel.org ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/s5p-cec.txt ++F: drivers/media/cec/platform/s5p/ ++ ++ARM/SAMSUNG S5P SERIES JPEG CODEC SUPPORT ++M: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> ++M: Jacek Anaszewski <jacek.anaszewski@gmail.com> ++M: Sylwester Nawrocki <s.nawrocki@samsung.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/platform/s5p-jpeg/ ++ ++ARM/SAMSUNG S5P SERIES Multi Format Codec (MFC) SUPPORT ++M: Andrzej Hajda <a.hajda@samsung.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/platform/s5p-mfc/ ++ ++ARM/SHMOBILE ARM ARCHITECTURE ++M: Geert Uytterhoeven <geert+renesas@glider.be> ++M: Magnus Damm <magnus.damm@gmail.com> ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++Q: http://patchwork.kernel.org/project/linux-renesas-soc/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git next ++F: Documentation/devicetree/bindings/arm/renesas.yaml ++F: arch/arm/boot/dts/emev2* ++F: arch/arm/boot/dts/gr-peach* ++F: arch/arm/boot/dts/iwg20d-q7* ++F: arch/arm/boot/dts/r7s* ++F: arch/arm/boot/dts/r8a* ++F: arch/arm/boot/dts/r9a* ++F: arch/arm/boot/dts/sh* ++F: arch/arm/configs/shmobile_defconfig ++F: arch/arm/include/debug/renesas-scif.S ++F: arch/arm/mach-shmobile/ ++F: drivers/soc/renesas/ ++F: include/linux/soc/renesas/ ++ ++ARM/SOCFPGA ARCHITECTURE ++M: Dinh Nguyen <dinguyen@kernel.org> ++S: Maintained ++W: http://www.rocketboards.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git ++F: arch/arm/boot/dts/socfpga* ++F: arch/arm/configs/socfpga_defconfig ++F: arch/arm/mach-socfpga/ ++F: arch/arm64/boot/dts/altera/ ++F: arch/arm64/boot/dts/intel/ ++ ++ARM/SOCFPGA CLOCK FRAMEWORK SUPPORT ++M: Dinh Nguyen <dinguyen@kernel.org> ++S: Maintained ++F: drivers/clk/socfpga/ ++ ++ARM/SOCFPGA EDAC SUPPORT ++M: Dinh Nguyen <dinguyen@kernel.org> ++S: Maintained ++F: drivers/edac/altera_edac.[ch] ++ ++ARM/SPREADTRUM SoC SUPPORT ++M: Orson Zhai <orsonzhai@gmail.com> ++M: Baolin Wang <baolin.wang7@gmail.com> ++M: Chunyan Zhang <zhang.lyra@gmail.com> ++S: Maintained ++F: arch/arm64/boot/dts/sprd ++N: sprd ++N: sc27xx ++N: sc2731 ++ ++ARM/STI ARCHITECTURE ++M: Patrice Chotard <patrice.chotard@foss.st.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.stlinux.com ++F: Documentation/devicetree/bindings/i2c/i2c-st.txt ++F: arch/arm/boot/dts/sti* ++F: arch/arm/mach-sti/ ++F: drivers/ata/ahci_st.c ++F: drivers/char/hw_random/st-rng.c ++F: drivers/clocksource/arm_global_timer.c ++F: drivers/clocksource/clksrc_st_lpc.c ++F: drivers/cpufreq/sti-cpufreq.c ++F: drivers/dma/st_fdma* ++F: drivers/i2c/busses/i2c-st.c ++F: drivers/media/platform/sti/c8sectpfe/ ++F: drivers/media/rc/st_rc.c ++F: drivers/mmc/host/sdhci-st.c ++F: drivers/phy/st/phy-miphy28lp.c ++F: drivers/phy/st/phy-stih407-usb.c ++F: drivers/pinctrl/pinctrl-st.c ++F: drivers/remoteproc/st_remoteproc.c ++F: drivers/remoteproc/st_slim_rproc.c ++F: drivers/reset/sti/ ++F: drivers/rtc/rtc-st-lpc.c ++F: drivers/tty/serial/st-asc.c ++F: drivers/usb/dwc3/dwc3-st.c ++F: drivers/usb/host/ehci-st.c ++F: drivers/usb/host/ohci-st.c ++F: drivers/watchdog/st_lpc_wdt.c ++F: include/linux/remoteproc/st_slim_rproc.h ++ ++ARM/STM32 ARCHITECTURE ++M: Maxime Coquelin <mcoquelin.stm32@gmail.com> ++M: Alexandre Torgue <alexandre.torgue@foss.st.com> ++L: linux-stm32@st-md-mailman.stormreply.com (moderated for non-subscribers) ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32.git stm32-next ++F: arch/arm/boot/dts/stm32* ++F: arch/arm/mach-stm32/ ++F: drivers/clocksource/armv7m_systick.c ++N: stm32 ++N: stm ++ ++ARM/Synaptics SoC support ++M: Jisheng Zhang <Jisheng.Zhang@synaptics.com> ++M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/boot/dts/berlin* ++F: arch/arm/mach-berlin/ ++F: arch/arm64/boot/dts/synaptics/ ++ ++ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/TEGRA HDMI CEC SUBSYSTEM SUPPORT ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-tegra@vger.kernel.org ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/tegra-cec.txt ++F: drivers/media/cec/platform/tegra/ ++ ++ARM/TETON BGA MACHINE SUPPORT ++M: "Mark F. Brown" <mark.brown314@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/TEXAS INSTRUMENT AEMIF/EMIF DRIVERS ++M: Santosh Shilimkar <ssantosh@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/memory/*emif* ++ ++ARM/TEXAS INSTRUMENT KEYSTONE ARCHITECTURE ++M: Santosh Shilimkar <ssantosh@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git ++F: arch/arm/boot/dts/keystone-* ++F: arch/arm/mach-keystone/ ++ ++ARM/TEXAS INSTRUMENT KEYSTONE CLOCK FRAMEWORK ++M: Santosh Shilimkar <ssantosh@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/clk/keystone/ ++ ++ARM/TEXAS INSTRUMENT KEYSTONE CLOCKSOURCE ++M: Santosh Shilimkar <ssantosh@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/clocksource/timer-keystone.c ++ ++ARM/TEXAS INSTRUMENT KEYSTONE RESET DRIVER ++M: Santosh Shilimkar <ssantosh@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/power/reset/keystone-reset.c ++ ++ARM/TEXAS INSTRUMENTS K3 ARCHITECTURE ++M: Nishanth Menon <nm@ti.com> ++M: Vignesh Raghavendra <vigneshr@ti.com> ++M: Tero Kristo <kristo@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: Documentation/devicetree/bindings/arm/ti/k3.yaml ++F: arch/arm64/boot/dts/ti/Makefile ++F: arch/arm64/boot/dts/ti/k3-* ++F: include/dt-bindings/pinctrl/k3.h ++ ++ARM/THECUS N2100 MACHINE SUPPORT ++M: Lennert Buytenhek <kernel@wantstofly.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++ ++ARM/TOSA MACHINE SUPPORT ++M: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> ++M: Dirk Opfer <dirk@opfer-online.de> ++S: Maintained ++ ++ARM/TOSHIBA VISCONTI ARCHITECTURE ++M: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/iwamatsu/linux-visconti.git ++F: Documentation/devicetree/bindings/arm/toshiba.yaml ++F: Documentation/devicetree/bindings/net/toshiba,visconti-dwmac.yaml ++F: Documentation/devicetree/bindings/gpio/toshiba,gpio-visconti.yaml ++F: Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml ++F: Documentation/devicetree/bindings/pinctrl/toshiba,tmpv7700-pinctrl.yaml ++F: Documentation/devicetree/bindings/watchdog/toshiba,visconti-wdt.yaml ++F: arch/arm64/boot/dts/toshiba/ ++F: drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c ++F: drivers/gpio/gpio-visconti.c ++F: drivers/pci/controller/dwc/pcie-visconti.c ++F: drivers/pinctrl/visconti/ ++F: drivers/watchdog/visconti_wdt.c ++N: visconti ++ ++ARM/UNIPHIER ARCHITECTURE ++M: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> ++M: Masami Hiramatsu <mhiramat@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/socionext/uniphier.yaml ++F: Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml ++F: Documentation/devicetree/bindings/pinctrl/socionext,uniphier-pinctrl.yaml ++F: arch/arm/boot/dts/uniphier* ++F: arch/arm/include/asm/hardware/cache-uniphier.h ++F: arch/arm/mach-uniphier/ ++F: arch/arm/mm/cache-uniphier.c ++F: arch/arm64/boot/dts/socionext/uniphier* ++F: drivers/bus/uniphier-system-bus.c ++F: drivers/clk/uniphier/ ++F: drivers/dma/uniphier-mdmac.c ++F: drivers/gpio/gpio-uniphier.c ++F: drivers/i2c/busses/i2c-uniphier* ++F: drivers/irqchip/irq-uniphier-aidet.c ++F: drivers/mmc/host/uniphier-sd.c ++F: drivers/pinctrl/uniphier/ ++F: drivers/reset/reset-uniphier.c ++F: drivers/tty/serial/8250/8250_uniphier.c ++N: uniphier ++ ++ARM/VERSATILE EXPRESS PLATFORM ++M: Liviu Dudau <liviu.dudau@arm.com> ++M: Sudeep Holla <sudeep.holla@arm.com> ++M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: */*/*/vexpress* ++F: */*/vexpress* ++F: arch/arm/boot/dts/vexpress* ++F: arch/arm/mach-vexpress/ ++F: arch/arm64/boot/dts/arm/ ++F: drivers/clk/versatile/clk-vexpress-osc.c ++F: drivers/clocksource/timer-versatile.c ++N: mps2 ++ ++ARM/VFP SUPPORT ++M: Russell King <linux@armlinux.org.uk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.armlinux.org.uk/ ++F: arch/arm/vfp/ ++ ++ARM/VOIPAC PXA270 SUPPORT ++M: Marek Vasut <marek.vasut@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/mach-pxa/include/mach/vpac270.h ++F: arch/arm/mach-pxa/vpac270.c ++ ++ARM/VT8500 ARM ARCHITECTURE ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Orphan ++F: Documentation/devicetree/bindings/i2c/i2c-wmt.txt ++F: arch/arm/mach-vt8500/ ++F: drivers/clocksource/timer-vt8500.c ++F: drivers/i2c/busses/i2c-wmt.c ++F: drivers/mmc/host/wmt-sdmmc.c ++F: drivers/pwm/pwm-vt8500.c ++F: drivers/rtc/rtc-vt8500.c ++F: drivers/tty/serial/vt8500_serial.c ++F: drivers/usb/host/ehci-platform.c ++F: drivers/usb/host/uhci-platform.c ++F: drivers/video/fbdev/vt8500lcdfb.* ++F: drivers/video/fbdev/wm8505fb* ++F: drivers/video/fbdev/wmt_ge_rops.* ++ ++ARM/ZIPIT Z2 SUPPORT ++M: Marek Vasut <marek.vasut@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/mach-pxa/include/mach/z2.h ++F: arch/arm/mach-pxa/z2.c ++ ++ARM/ZYNQ ARCHITECTURE ++M: Michal Simek <michal.simek@xilinx.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++W: http://wiki.xilinx.com ++T: git https://github.com/Xilinx/linux-xlnx.git ++F: Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml ++F: Documentation/devicetree/bindings/i2c/xlnx,xps-iic-2.00.a.yaml ++F: Documentation/devicetree/bindings/spi/xlnx,zynq-qspi.yaml ++F: arch/arm/mach-zynq/ ++F: drivers/clocksource/timer-cadence-ttc.c ++F: drivers/cpuidle/cpuidle-zynq.c ++F: drivers/edac/synopsys_edac.c ++F: drivers/i2c/busses/i2c-cadence.c ++F: drivers/i2c/busses/i2c-xiic.c ++F: drivers/mmc/host/sdhci-of-arasan.c ++N: zynq ++N: xilinx ++ ++ARM64 PORT (AARCH64 ARCHITECTURE) ++M: Catalin Marinas <catalin.marinas@arm.com> ++M: Will Deacon <will@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git ++F: Documentation/arm64/ ++F: arch/arm64/ ++F: tools/testing/selftests/arm64/ ++X: arch/arm64/boot/dts/ ++ ++ARROW SPEEDCHIPS XRS7000 SERIES ETHERNET SWITCH DRIVER ++M: George McCollister <george.mccollister@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/dsa/arrow,xrs700x.yaml ++F: drivers/net/dsa/xrs700x/* ++F: net/dsa/tag_xrs700x.c ++ ++AS3645A LED FLASH CONTROLLER DRIVER ++M: Sakari Ailus <sakari.ailus@iki.fi> ++L: linux-leds@vger.kernel.org ++S: Maintained ++F: drivers/leds/flash/leds-as3645a.c ++ ++ASAHI KASEI AK7375 LENS VOICE COIL DRIVER ++M: Tianshu Qiu <tian.shu.qiu@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ak7375.txt ++F: drivers/media/i2c/ak7375.c ++ ++ASAHI KASEI AK8974 DRIVER ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-iio@vger.kernel.org ++S: Supported ++W: http://www.akm.com/ ++F: drivers/iio/magnetometer/ak8974.c ++ ++ASC7621 HARDWARE MONITOR DRIVER ++M: George Joseph <george.joseph@fairview5.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/asc7621.rst ++F: drivers/hwmon/asc7621.c ++ ++ASPEED PINCTRL DRIVERS ++M: Andrew Jeffery <andrew@aj.id.au> ++L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers) ++L: openbmc@lists.ozlabs.org (moderated for non-subscribers) ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pinctrl/aspeed,* ++F: drivers/pinctrl/aspeed/ ++ ++ASPEED SCU INTERRUPT CONTROLLER DRIVER ++M: Eddie James <eajames@linux.ibm.com> ++L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt ++F: drivers/irqchip/irq-aspeed-scu-ic.c ++F: include/dt-bindings/interrupt-controller/aspeed-scu-ic.h ++ ++ASPEED SD/MMC DRIVER ++M: Andrew Jeffery <andrew@aj.id.au> ++L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers) ++L: openbmc@lists.ozlabs.org (moderated for non-subscribers) ++L: linux-mmc@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml ++F: drivers/mmc/host/sdhci-of-aspeed* ++ ++ASPEED VIDEO ENGINE DRIVER ++M: Eddie James <eajames@linux.ibm.com> ++L: linux-media@vger.kernel.org ++L: openbmc@lists.ozlabs.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/media/aspeed-video.txt ++F: drivers/media/platform/aspeed-video.c ++ ++ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS DRIVERS ++M: Corentin Chary <corentin.chary@gmail.com> ++L: acpi4asus-user@lists.sourceforge.net ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++W: http://acpi4asus.sf.net ++F: drivers/platform/x86/asus*.c ++F: drivers/platform/x86/eeepc*.c ++ ++ASUS WIRELESS RADIO CONTROL DRIVER ++M: João Paulo Rechi Vita <jprvita@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/asus-wireless.c ++ ++ASYMMETRIC KEYS ++M: David Howells <dhowells@redhat.com> ++L: keyrings@vger.kernel.org ++S: Maintained ++F: Documentation/crypto/asymmetric-keys.rst ++F: crypto/asymmetric_keys/ ++F: include/crypto/pkcs7.h ++F: include/crypto/public_key.h ++F: include/linux/verification.h ++ ++ASYNCHRONOUS TRANSFERS/TRANSFORMS (IOAT) API ++R: Dan Williams <dan.j.williams@intel.com> ++S: Odd fixes ++W: http://sourceforge.net/projects/xscaleiop ++F: Documentation/crypto/async-tx-api.rst ++F: crypto/async_tx/ ++F: include/linux/async_tx.h ++ ++AT24 EEPROM DRIVER ++M: Bartosz Golaszewski <brgl@bgdev.pl> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git ++F: Documentation/devicetree/bindings/eeprom/at24.yaml ++F: drivers/misc/eeprom/at24.c ++ ++ATA OVER ETHERNET (AOE) DRIVER ++M: "Justin Sanders" <justin@coraid.com> ++S: Supported ++W: http://www.openaoe.org/ ++F: Documentation/admin-guide/aoe/ ++F: drivers/block/aoe/ ++ ++ATC260X PMIC MFD DRIVER ++M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ++M: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> ++L: linux-actions@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/mfd/actions,atc260x.yaml ++F: drivers/input/misc/atc260x-onkey.c ++F: drivers/mfd/atc260* ++F: drivers/power/reset/atc260x-poweroff.c ++F: drivers/regulator/atc260x-regulator.c ++F: include/linux/mfd/atc260x/* ++ ++ATHEROS 71XX/9XXX GPIO DRIVER ++M: Alban Bedel <albeu@free.fr> ++S: Maintained ++W: https://github.com/AlbanBedel/linux ++T: git git://github.com/AlbanBedel/linux ++F: Documentation/devicetree/bindings/gpio/gpio-ath79.txt ++F: drivers/gpio/gpio-ath79.c ++ ++ATHEROS 71XX/9XXX USB PHY DRIVER ++M: Alban Bedel <albeu@free.fr> ++S: Maintained ++W: https://github.com/AlbanBedel/linux ++T: git git://github.com/AlbanBedel/linux ++F: Documentation/devicetree/bindings/phy/phy-ath79-usb.txt ++F: drivers/phy/qualcomm/phy-ath79-usb.c ++ ++ATHEROS ATH GENERIC UTILITIES ++M: Kalle Valo <kvalo@codeaurora.org> ++L: linux-wireless@vger.kernel.org ++S: Supported ++F: drivers/net/wireless/ath/* ++ ++ATHEROS ATH5K WIRELESS DRIVER ++M: Jiri Slaby <jirislaby@kernel.org> ++M: Nick Kossifidis <mickflemm@gmail.com> ++M: Luis Chamberlain <mcgrof@kernel.org> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++W: https://wireless.wiki.kernel.org/en/users/Drivers/ath5k ++F: drivers/net/wireless/ath/ath5k/ ++ ++ATHEROS ATH6KL WIRELESS DRIVER ++M: Kalle Valo <kvalo@codeaurora.org> ++L: linux-wireless@vger.kernel.org ++S: Supported ++W: https://wireless.wiki.kernel.org/en/users/Drivers/ath6kl ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git ++F: drivers/net/wireless/ath/ath6kl/ ++ ++ATI_REMOTE2 DRIVER ++M: Ville Syrjala <syrjala@sci.fi> ++S: Maintained ++F: drivers/input/misc/ati_remote2.c ++ ++ATK0110 HWMON DRIVER ++M: Luca Tettamanti <kronos.it@gmail.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: drivers/hwmon/asus_atk0110.c ++ ++ATLX ETHERNET DRIVERS ++M: Chris Snook <chris.snook@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://sourceforge.net/projects/atl1 ++W: http://atl1.sourceforge.net ++F: drivers/net/ethernet/atheros/ ++ ++ATM ++M: Chas Williams <3chas3@gmail.com> ++L: linux-atm-general@lists.sourceforge.net (moderated for non-subscribers) ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://linux-atm.sourceforge.net ++F: drivers/atm/ ++F: include/linux/atm* ++F: include/uapi/linux/atm* ++ ++ATMEL MACB ETHERNET DRIVER ++M: Nicolas Ferre <nicolas.ferre@microchip.com> ++M: Claudiu Beznea <claudiu.beznea@microchip.com> ++S: Supported ++F: drivers/net/ethernet/cadence/ ++ ++ATMEL MAXTOUCH DRIVER ++M: Nick Dyer <nick@shmanahar.org> ++S: Maintained ++T: git git://github.com/ndyer/linux.git ++F: Documentation/devicetree/bindings/input/atmel,maxtouch.yaml ++F: drivers/input/touchscreen/atmel_mxt_ts.c ++ ++ATMEL WIRELESS DRIVER ++M: Simon Kelley <simon@thekelleys.org.uk> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++W: http://www.thekelleys.org.uk/atmel ++W: http://atmelwlandriver.sourceforge.net/ ++F: drivers/net/wireless/atmel/atmel* ++ ++ATOMIC INFRASTRUCTURE ++M: Will Deacon <will@kernel.org> ++M: Peter Zijlstra <peterz@infradead.org> ++R: Boqun Feng <boqun.feng@gmail.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: arch/*/include/asm/atomic*.h ++F: include/*/atomic*.h ++F: include/linux/refcount.h ++F: Documentation/atomic_*.txt ++F: scripts/atomic/ ++ ++ATTO EXPRESSSAS SAS/SATA RAID SCSI DRIVER ++M: Bradley Grove <linuxdrivers@attotech.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: http://www.attotech.com ++F: drivers/scsi/esas2r ++ ++ATUSB IEEE 802.15.4 RADIO DRIVER ++M: Stefan Schmidt <stefan@datenfreihafen.org> ++L: linux-wpan@vger.kernel.org ++S: Maintained ++F: drivers/net/ieee802154/at86rf230.h ++F: drivers/net/ieee802154/atusb.c ++F: drivers/net/ieee802154/atusb.h ++ ++AUDIT SUBSYSTEM ++M: Paul Moore <paul@paul-moore.com> ++M: Eric Paris <eparis@redhat.com> ++L: linux-audit@redhat.com (moderated for non-subscribers) ++S: Supported ++W: https://github.com/linux-audit ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit.git ++F: include/asm-generic/audit_*.h ++F: include/linux/audit.h ++F: include/uapi/linux/audit.h ++F: kernel/audit* ++F: lib/*audit.c ++ ++AUXILIARY DISPLAY DRIVERS ++M: Miguel Ojeda <ojeda@kernel.org> ++S: Maintained ++F: drivers/auxdisplay/ ++F: include/linux/cfag12864b.h ++ ++AVIA HX711 ANALOG DIGITAL CONVERTER IIO DRIVER ++M: Andreas Klinger <ak@it-klinger.de> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml ++F: drivers/iio/adc/hx711.c ++ ++AX.25 NETWORK LAYER ++M: Ralf Baechle <ralf@linux-mips.org> ++L: linux-hams@vger.kernel.org ++S: Maintained ++W: http://www.linux-ax25.org/ ++F: include/net/ax25.h ++F: include/uapi/linux/ax25.h ++F: net/ax25/ ++ ++AXENTIA ARM DEVICES ++M: Peter Rosin <peda@axentia.se> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/boot/dts/at91-linea.dtsi ++F: arch/arm/boot/dts/at91-natte.dtsi ++F: arch/arm/boot/dts/at91-nattis-2-natte-2.dts ++F: arch/arm/boot/dts/at91-tse850-3.dts ++ ++AXENTIA ASOC DRIVERS ++M: Peter Rosin <peda@axentia.se> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/sound/axentia,* ++F: sound/soc/atmel/tse850-pcm5142.c ++ ++AXI-FAN-CONTROL HARDWARE MONITOR DRIVER ++M: Nuno Sá <nuno.sa@analog.com> ++L: linux-hwmon@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml ++F: drivers/hwmon/axi-fan-control.c ++ ++AXXIA I2C CONTROLLER ++M: Krzysztof Adamski <krzysztof.adamski@nokia.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-axxia.txt ++F: drivers/i2c/busses/i2c-axxia.c ++ ++AZ6007 DVB DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/az6007.c ++ ++AZTECH FM RADIO RECEIVER DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-aztech* ++ ++B43 WIRELESS DRIVER ++L: linux-wireless@vger.kernel.org ++L: b43-dev@lists.infradead.org ++S: Odd Fixes ++W: https://wireless.wiki.kernel.org/en/users/Drivers/b43 ++F: drivers/net/wireless/broadcom/b43/ ++ ++B43LEGACY WIRELESS DRIVER ++M: Larry Finger <Larry.Finger@lwfinger.net> ++L: linux-wireless@vger.kernel.org ++L: b43-dev@lists.infradead.org ++S: Maintained ++W: https://wireless.wiki.kernel.org/en/users/Drivers/b43 ++F: drivers/net/wireless/broadcom/b43legacy/ ++ ++BACKLIGHT CLASS/SUBSYSTEM ++M: Lee Jones <lee.jones@linaro.org> ++M: Daniel Thompson <daniel.thompson@linaro.org> ++M: Jingoo Han <jingoohan1@gmail.com> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git ++F: Documentation/ABI/stable/sysfs-class-backlight ++F: Documentation/ABI/testing/sysfs-class-backlight ++F: Documentation/devicetree/bindings/leds/backlight ++F: drivers/video/backlight/ ++F: include/linux/backlight.h ++F: include/linux/pwm_backlight.h ++ ++BATMAN ADVANCED ++M: Marek Lindner <mareklindner@neomailbox.ch> ++M: Simon Wunderlich <sw@simonwunderlich.de> ++M: Antonio Quartulli <a@unstable.cc> ++M: Sven Eckelmann <sven@narfation.org> ++L: b.a.t.m.a.n@lists.open-mesh.org (moderated for non-subscribers) ++S: Maintained ++W: https://www.open-mesh.org/ ++Q: https://patchwork.open-mesh.org/project/batman/list/ ++B: https://www.open-mesh.org/projects/batman-adv/issues ++C: ircs://irc.hackint.org/batadv ++T: git https://git.open-mesh.org/linux-merge.git ++F: Documentation/networking/batman-adv.rst ++F: include/uapi/linux/batadv_packet.h ++F: include/uapi/linux/batman_adv.h ++F: net/batman-adv/ ++ ++BAYCOM/HDLCDRV DRIVERS FOR AX.25 ++M: Thomas Sailer <t.sailer@alumni.ethz.ch> ++L: linux-hams@vger.kernel.org ++S: Maintained ++W: http://www.baycom.org/~tom/ham/ham.html ++F: drivers/net/hamradio/baycom* ++ ++BCACHE (BLOCK LAYER CACHE) ++M: Coly Li <colyli@suse.de> ++M: Kent Overstreet <kent.overstreet@gmail.com> ++L: linux-bcache@vger.kernel.org ++S: Maintained ++W: http://bcache.evilpiepirate.org ++C: irc://irc.oftc.net/bcache ++F: drivers/md/bcache/ ++ ++BDISP ST MEDIA DRIVER ++M: Fabien Dessenne <fabien.dessenne@foss.st.com> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/platform/sti/bdisp ++ ++BECKHOFF CX5020 ETHERCAT MASTER DRIVER ++M: Dariusz Marcinkiewicz <reksio@newterm.pl> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/ec_bhf.c ++ ++BEFS FILE SYSTEM ++M: Luis de Bethencourt <luisbg@kernel.org> ++M: Salah Triki <salah.triki@gmail.com> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/luisbg/linux-befs.git ++F: Documentation/filesystems/befs.rst ++F: fs/befs/ ++ ++BFQ I/O SCHEDULER ++M: Paolo Valente <paolo.valente@linaro.org> ++M: Jens Axboe <axboe@kernel.dk> ++L: linux-block@vger.kernel.org ++S: Maintained ++F: Documentation/block/bfq-iosched.rst ++F: block/bfq-* ++ ++BFS FILE SYSTEM ++M: "Tigran A. Aivazian" <aivazian.tigran@gmail.com> ++S: Maintained ++F: Documentation/filesystems/bfs.rst ++F: fs/bfs/ ++F: include/uapi/linux/bfs_fs.h ++ ++BITMAP API ++M: Yury Norov <yury.norov@gmail.com> ++R: Andy Shevchenko <andriy.shevchenko@linux.intel.com> ++R: Rasmus Villemoes <linux@rasmusvillemoes.dk> ++S: Maintained ++F: include/asm-generic/bitops/find.h ++F: include/linux/bitmap.h ++F: lib/bitmap.c ++F: lib/find_bit.c ++F: lib/find_bit_benchmark.c ++F: lib/test_bitmap.c ++F: tools/include/asm-generic/bitops/find.h ++F: tools/include/linux/bitmap.h ++F: tools/lib/bitmap.c ++F: tools/lib/find_bit.c ++ ++BLINKM RGB LED DRIVER ++M: Jan-Simon Moeller <jansimon.moeller@gmx.de> ++S: Maintained ++F: drivers/leds/leds-blinkm.c ++ ++BLOCK LAYER ++M: Jens Axboe <axboe@kernel.dk> ++L: linux-block@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git ++F: block/ ++F: drivers/block/ ++F: include/linux/blk* ++F: kernel/trace/blktrace.c ++F: lib/sbitmap.c ++ ++BLOCK2MTD DRIVER ++M: Joern Engel <joern@lazybastard.org> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++F: drivers/mtd/devices/block2mtd.c ++ ++BLUETOOTH DRIVERS ++M: Marcel Holtmann <marcel@holtmann.org> ++M: Johan Hedberg <johan.hedberg@gmail.com> ++M: Luiz Augusto von Dentz <luiz.dentz@gmail.com> ++L: linux-bluetooth@vger.kernel.org ++S: Supported ++W: http://www.bluez.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git ++F: drivers/bluetooth/ ++ ++BLUETOOTH SUBSYSTEM ++M: Marcel Holtmann <marcel@holtmann.org> ++M: Johan Hedberg <johan.hedberg@gmail.com> ++M: Luiz Augusto von Dentz <luiz.dentz@gmail.com> ++L: linux-bluetooth@vger.kernel.org ++S: Supported ++W: http://www.bluez.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git ++F: include/net/bluetooth/ ++F: net/bluetooth/ ++ ++BONDING DRIVER ++M: Jay Vosburgh <j.vosburgh@gmail.com> ++M: Veaceslav Falico <vfalico@gmail.com> ++M: Andy Gospodarek <andy@greyhouse.net> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://sourceforge.net/projects/bonding/ ++F: drivers/net/bonding/ ++F: include/net/bonding.h ++F: include/uapi/linux/if_bonding.h ++ ++BOSCH SENSORTEC BMA400 ACCELEROMETER IIO DRIVER ++M: Dan Robertson <dan@dlrobertson.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml ++F: drivers/iio/accel/bma400* ++ ++BPF (Safe dynamic programs and tools) ++M: Alexei Starovoitov <ast@kernel.org> ++M: Daniel Borkmann <daniel@iogearbox.net> ++M: Andrii Nakryiko <andrii@kernel.org> ++R: Martin KaFai Lau <kafai@fb.com> ++R: Song Liu <songliubraving@fb.com> ++R: Yonghong Song <yhs@fb.com> ++R: John Fastabend <john.fastabend@gmail.com> ++R: KP Singh <kpsingh@kernel.org> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Supported ++W: https://bpf.io/ ++Q: https://patchwork.kernel.org/project/netdevbpf/list/?delegate=121173 ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git ++F: Documentation/bpf/ ++F: Documentation/networking/filter.rst ++F: Documentation/userspace-api/ebpf/ ++F: arch/*/net/* ++F: include/linux/bpf* ++F: include/linux/btf* ++F: include/linux/filter.h ++F: include/trace/events/xdp.h ++F: include/uapi/linux/bpf* ++F: include/uapi/linux/btf* ++F: include/uapi/linux/filter.h ++F: kernel/bpf/ ++F: kernel/trace/bpf_trace.c ++F: lib/test_bpf.c ++F: net/bpf/ ++F: net/core/filter.c ++F: net/sched/act_bpf.c ++F: net/sched/cls_bpf.c ++F: samples/bpf/ ++F: scripts/bpf_doc.py ++F: tools/bpf/ ++F: tools/lib/bpf/ ++F: tools/testing/selftests/bpf/ ++N: bpf ++K: bpf ++ ++BPF JIT for ARM ++M: Shubham Bansal <illusionist.neo@gmail.com> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: arch/arm/net/ ++ ++BPF JIT for ARM64 ++M: Daniel Borkmann <daniel@iogearbox.net> ++M: Alexei Starovoitov <ast@kernel.org> ++M: Zi Shen Lim <zlim.lnx@gmail.com> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Supported ++F: arch/arm64/net/ ++ ++BPF JIT for MIPS (32-BIT AND 64-BIT) ++M: Paul Burton <paulburton@kernel.org> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: arch/mips/net/ ++ ++BPF JIT for NFP NICs ++M: Jakub Kicinski <kuba@kernel.org> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/netronome/nfp/bpf/ ++ ++BPF JIT for POWERPC (32-BIT AND 64-BIT) ++M: Naveen N. Rao <naveen.n.rao@linux.ibm.com> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: arch/powerpc/net/ ++ ++BPF JIT for RISC-V (32-bit) ++M: Luke Nelson <luke.r.nels@gmail.com> ++M: Xi Wang <xi.wang@gmail.com> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: arch/riscv/net/ ++X: arch/riscv/net/bpf_jit_comp64.c ++ ++BPF JIT for RISC-V (64-bit) ++M: Björn Töpel <bjorn@kernel.org> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: arch/riscv/net/ ++X: arch/riscv/net/bpf_jit_comp32.c ++ ++BPF JIT for S390 ++M: Ilya Leoshkevich <iii@linux.ibm.com> ++M: Heiko Carstens <hca@linux.ibm.com> ++M: Vasily Gorbik <gor@linux.ibm.com> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: arch/s390/net/ ++X: arch/s390/net/pnet.c ++ ++BPF JIT for SPARC (32-BIT AND 64-BIT) ++M: David S. Miller <davem@davemloft.net> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: arch/sparc/net/ ++ ++BPF JIT for X86 32-BIT ++M: Wang YanQing <udknight@gmail.com> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: arch/x86/net/bpf_jit_comp32.c ++ ++BPF JIT for X86 64-BIT ++M: Alexei Starovoitov <ast@kernel.org> ++M: Daniel Borkmann <daniel@iogearbox.net> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Supported ++F: arch/x86/net/ ++X: arch/x86/net/bpf_jit_comp32.c ++ ++BPF LSM (Security Audit and Enforcement using BPF) ++M: KP Singh <kpsingh@kernel.org> ++R: Florent Revest <revest@chromium.org> ++R: Brendan Jackman <jackmanb@chromium.org> ++L: bpf@vger.kernel.org ++S: Maintained ++F: Documentation/bpf/bpf_lsm.rst ++F: include/linux/bpf_lsm.h ++F: kernel/bpf/bpf_lsm.c ++F: security/bpf/ ++ ++BROADCOM B44 10/100 ETHERNET DRIVER ++M: Michael Chan <michael.chan@broadcom.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/broadcom/b44.* ++ ++BROADCOM B53 ETHERNET SWITCH DRIVER ++M: Florian Fainelli <f.fainelli@gmail.com> ++L: netdev@vger.kernel.org ++L: openwrt-devel@lists.openwrt.org (subscribers-only) ++S: Supported ++F: Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml ++F: drivers/net/dsa/b53/* ++F: include/linux/dsa/brcm.h ++F: include/linux/platform_data/b53.h ++ ++BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE ++M: Nicolas Saenz Julienne <nsaenz@kernel.org> ++L: bcm-kernel-feedback-list@broadcom.com ++L: linux-rpi-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/nsaenz/linux-rpi.git ++F: Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml ++F: drivers/pci/controller/pcie-brcmstb.c ++F: drivers/staging/vc04_services ++N: bcm2711 ++N: bcm283* ++ ++BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITECTURE ++M: Florian Fainelli <f.fainelli@gmail.com> ++M: Ray Jui <rjui@broadcom.com> ++M: Scott Branden <sbranden@broadcom.com> ++M: bcm-kernel-feedback-list@broadcom.com ++S: Maintained ++T: git git://github.com/broadcom/mach-bcm ++F: arch/arm/mach-bcm/ ++N: bcm281* ++N: bcm113* ++N: bcm216* ++N: kona ++ ++BROADCOM BCM47XX MIPS ARCHITECTURE ++M: Hauke Mehrtens <hauke@hauke-m.de> ++M: Rafał Miłecki <zajec5@gmail.com> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/mips/brcm/ ++F: arch/mips/bcm47xx/* ++F: arch/mips/include/asm/mach-bcm47xx/* ++ ++BROADCOM BCM4908 ETHERNET DRIVER ++M: Rafał Miłecki <rafal@milecki.pl> ++M: bcm-kernel-feedback-list@broadcom.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml ++F: drivers/net/ethernet/broadcom/bcm4908_enet.* ++F: drivers/net/ethernet/broadcom/unimac.h ++ ++BROADCOM BCM5301X ARM ARCHITECTURE ++M: Hauke Mehrtens <hauke@hauke-m.de> ++M: Rafał Miłecki <zajec5@gmail.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/boot/dts/bcm470* ++F: arch/arm/boot/dts/bcm5301* ++F: arch/arm/boot/dts/bcm953012* ++F: arch/arm/mach-bcm/bcm_5301x.c ++ ++BROADCOM BCM53573 ARM ARCHITECTURE ++M: Rafał Miłecki <rafal@milecki.pl> ++L: bcm-kernel-feedback-list@broadcom.com ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/boot/dts/bcm47189* ++F: arch/arm/boot/dts/bcm53573* ++ ++BROADCOM BCM63XX ARM ARCHITECTURE ++M: Florian Fainelli <f.fainelli@gmail.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://github.com/broadcom/stblinux.git ++N: bcm63xx ++ ++BROADCOM BCM63XX/BCM33XX UDC DRIVER ++M: Kevin Cernekee <cernekee@gmail.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/gadget/udc/bcm63xx_udc.* ++ ++BROADCOM BCM7XXX ARM ARCHITECTURE ++M: Florian Fainelli <f.fainelli@gmail.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://github.com/broadcom/stblinux.git ++F: Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml ++F: arch/arm/boot/dts/bcm7*.dts* ++F: arch/arm/include/asm/hardware/cache-b15-rac.h ++F: arch/arm/mach-bcm/*brcmstb* ++F: arch/arm/mm/cache-b15-rac.c ++F: drivers/bus/brcmstb_gisb.c ++F: drivers/pci/controller/pcie-brcmstb.c ++N: brcmstb ++ ++BROADCOM BDC DRIVER ++M: Al Cooper <alcooperx@gmail.com> ++L: linux-usb@vger.kernel.org ++L: bcm-kernel-feedback-list@broadcom.com ++S: Maintained ++F: Documentation/devicetree/bindings/usb/brcm,bdc.txt ++F: drivers/usb/gadget/udc/bdc/ ++ ++BROADCOM BMIPS CPUFREQ DRIVER ++M: Markus Mayer <mmayer@broadcom.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: drivers/cpufreq/bmips-cpufreq.c ++ ++BROADCOM BMIPS MIPS ARCHITECTURE ++M: Florian Fainelli <f.fainelli@gmail.com> ++L: bcm-kernel-feedback-list@broadcom.com ++L: linux-mips@vger.kernel.org ++S: Maintained ++T: git git://github.com/broadcom/stblinux.git ++F: arch/mips/bmips/* ++F: arch/mips/boot/dts/brcm/bcm*.dts* ++F: arch/mips/include/asm/mach-bmips/* ++F: arch/mips/kernel/*bmips* ++F: drivers/soc/bcm/bcm63xx ++F: drivers/irqchip/irq-bcm63* ++F: drivers/irqchip/irq-bcm7* ++F: drivers/irqchip/irq-brcmstb* ++F: include/linux/bcm963xx_nvram.h ++F: include/linux/bcm963xx_tag.h ++ ++BROADCOM BNX2 GIGABIT ETHERNET DRIVER ++M: Rasesh Mody <rmody@marvell.com> ++M: GR-Linux-NIC-Dev@marvell.com ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/broadcom/bnx2.* ++F: drivers/net/ethernet/broadcom/bnx2_* ++ ++BROADCOM BNX2FC 10 GIGABIT FCOE DRIVER ++M: Saurav Kashyap <skashyap@marvell.com> ++M: Javed Hasan <jhasan@marvell.com> ++M: GR-QLogic-Storage-Upstream@marvell.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/bnx2fc/ ++ ++BROADCOM BNX2I 1/10 GIGABIT iSCSI DRIVER ++M: Nilesh Javali <njavali@marvell.com> ++M: Manish Rangankar <mrangankar@marvell.com> ++M: GR-QLogic-Storage-Upstream@marvell.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/bnx2i/ ++ ++BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER ++M: Ariel Elior <aelior@marvell.com> ++M: Sudarsana Kalluru <skalluru@marvell.com> ++M: GR-everest-linux-l2@marvell.com ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/broadcom/bnx2x/ ++ ++BROADCOM BNXT_EN 50 GIGABIT ETHERNET DRIVER ++M: Michael Chan <michael.chan@broadcom.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/broadcom/bnxt/ ++ ++BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER ++M: Arend van Spriel <aspriel@gmail.com> ++M: Franky Lin <franky.lin@broadcom.com> ++M: Hante Meuleman <hante.meuleman@broadcom.com> ++M: Chi-hsien Lin <chi-hsien.lin@infineon.com> ++M: Wright Feng <wright.feng@infineon.com> ++M: Chung-hsien Hsu <chung-hsien.hsu@infineon.com> ++L: linux-wireless@vger.kernel.org ++L: brcm80211-dev-list.pdl@broadcom.com ++L: SHA-cyfmac-dev-list@infineon.com ++S: Supported ++F: drivers/net/wireless/broadcom/brcm80211/ ++ ++BROADCOM BRCMSTB GPIO DRIVER ++M: Gregory Fong <gregory.0xf0@gmail.com> ++L: bcm-kernel-feedback-list@broadcom.com ++S: Supported ++F: Documentation/devicetree/bindings/gpio/brcm,brcmstb-gpio.txt ++F: drivers/gpio/gpio-brcmstb.c ++ ++BROADCOM BRCMSTB I2C DRIVER ++M: Kamal Dasu <kdasu.kdev@gmail.com> ++L: linux-i2c@vger.kernel.org ++L: bcm-kernel-feedback-list@broadcom.com ++S: Supported ++F: Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml ++F: drivers/i2c/busses/i2c-brcmstb.c ++ ++BROADCOM BRCMSTB UART DRIVER ++M: Al Cooper <alcooperx@gmail.com> ++L: linux-serial@vger.kernel.org ++L: bcm-kernel-feedback-list@broadcom.com ++S: Maintained ++F: Documentation/devicetree/bindings/serial/brcm,bcm7271-uart.yaml ++F: drivers/tty/serial/8250/8250_bcm7271.c ++ ++BROADCOM BRCMSTB USB EHCI DRIVER ++M: Al Cooper <alcooperx@gmail.com> ++L: linux-usb@vger.kernel.org ++L: bcm-kernel-feedback-list@broadcom.com ++S: Maintained ++F: Documentation/devicetree/bindings/usb/brcm,bcm7445-ehci.yaml ++F: drivers/usb/host/ehci-brcm.* ++ ++BROADCOM BRCMSTB USB PIN MAP DRIVER ++M: Al Cooper <alcooperx@gmail.com> ++L: linux-usb@vger.kernel.org ++L: bcm-kernel-feedback-list@broadcom.com ++S: Maintained ++F: Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml ++F: drivers/usb/misc/brcmstb-usb-pinmap.c ++ ++BROADCOM BRCMSTB USB2 and USB3 PHY DRIVER ++M: Al Cooper <alcooperx@gmail.com> ++L: linux-kernel@vger.kernel.org ++L: bcm-kernel-feedback-list@broadcom.com ++S: Maintained ++F: drivers/phy/broadcom/phy-brcm-usb* ++ ++BROADCOM ETHERNET PHY DRIVERS ++M: Florian Fainelli <f.fainelli@gmail.com> ++L: bcm-kernel-feedback-list@broadcom.com ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/net/broadcom-bcm87xx.txt ++F: drivers/net/phy/bcm*.[ch] ++F: drivers/net/phy/broadcom.c ++F: include/linux/brcmphy.h ++ ++BROADCOM GENET ETHERNET DRIVER ++M: Doug Berger <opendmb@gmail.com> ++M: Florian Fainelli <f.fainelli@gmail.com> ++L: bcm-kernel-feedback-list@broadcom.com ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/net/brcm,bcmgenet.txt ++F: Documentation/devicetree/bindings/net/brcm,unimac-mdio.txt ++F: drivers/net/ethernet/broadcom/genet/ ++F: drivers/net/ethernet/broadcom/unimac.h ++F: drivers/net/mdio/mdio-bcm-unimac.c ++F: include/linux/platform_data/bcmgenet.h ++F: include/linux/platform_data/mdio-bcm-unimac.h ++ ++BROADCOM IPROC ARM ARCHITECTURE ++M: Ray Jui <rjui@broadcom.com> ++M: Scott Branden <sbranden@broadcom.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://github.com/broadcom/cygnus-linux.git ++F: arch/arm64/boot/dts/broadcom/northstar2/* ++F: arch/arm64/boot/dts/broadcom/stingray/* ++F: drivers/clk/bcm/clk-ns* ++F: drivers/clk/bcm/clk-sr* ++F: drivers/pinctrl/bcm/pinctrl-ns* ++F: include/dt-bindings/clock/bcm-sr* ++N: iproc ++N: cygnus ++N: bcm[-_]nsp ++N: bcm9113* ++N: bcm9583* ++N: bcm9585* ++N: bcm9586* ++N: bcm988312 ++N: bcm113* ++N: bcm583* ++N: bcm585* ++N: bcm586* ++N: bcm88312 ++N: hr2 ++N: stingray ++ ++BROADCOM IPROC GBIT ETHERNET DRIVER ++M: Rafał Miłecki <rafal@milecki.pl> ++M: bcm-kernel-feedback-list@broadcom.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/brcm,amac.txt ++F: drivers/net/ethernet/broadcom/bgmac* ++F: drivers/net/ethernet/broadcom/unimac.h ++ ++BROADCOM KONA GPIO DRIVER ++M: Ray Jui <rjui@broadcom.com> ++L: bcm-kernel-feedback-list@broadcom.com ++S: Supported ++F: Documentation/devicetree/bindings/gpio/brcm,kona-gpio.txt ++F: drivers/gpio/gpio-bcm-kona.c ++ ++BROADCOM MPI3 STORAGE CONTROLLER DRIVER ++M: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com> ++M: Kashyap Desai <kashyap.desai@broadcom.com> ++M: Sumit Saxena <sumit.saxena@broadcom.com> ++M: Sreekanth Reddy <sreekanth.reddy@broadcom.com> ++L: mpi3mr-linuxdrv.pdl@broadcom.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: https://www.broadcom.com/support/storage ++F: drivers/scsi/mpi3mr/ ++ ++BROADCOM NETXTREME-E ROCE DRIVER ++M: Selvin Xavier <selvin.xavier@broadcom.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++W: http://www.broadcom.com ++F: drivers/infiniband/hw/bnxt_re/ ++F: include/uapi/rdma/bnxt_re-abi.h ++ ++BROADCOM NVRAM DRIVER ++M: Rafał Miłecki <zajec5@gmail.com> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: drivers/firmware/broadcom/* ++ ++BROADCOM PMB (POWER MANAGEMENT BUS) DRIVER ++M: Rafał Miłecki <rafal@milecki.pl> ++M: Florian Fainelli <f.fainelli@gmail.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-pm@vger.kernel.org ++S: Maintained ++T: git git://github.com/broadcom/stblinux.git ++F: drivers/soc/bcm/bcm63xx/bcm-pmb.c ++F: include/dt-bindings/soc/bcm-pmb.h ++ ++BROADCOM SPECIFIC AMBA DRIVER (BCMA) ++M: Rafał Miłecki <zajec5@gmail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/bcma/ ++F: include/linux/bcma/ ++ ++BROADCOM SPI DRIVER ++M: Kamal Dasu <kdasu.kdev@gmail.com> ++M: bcm-kernel-feedback-list@broadcom.com ++S: Maintained ++F: Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml ++F: drivers/spi/spi-bcm-qspi.* ++F: drivers/spi/spi-brcmstb-qspi.c ++F: drivers/spi/spi-iproc-qspi.c ++ ++BROADCOM STB AVS CPUFREQ DRIVER ++M: Markus Mayer <mmayer@broadcom.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/cpufreq/brcm,stb-avs-cpu-freq.txt ++F: drivers/cpufreq/brcmstb* ++ ++BROADCOM STB AVS TMON DRIVER ++M: Markus Mayer <mmayer@broadcom.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt ++F: drivers/thermal/broadcom/brcmstb* ++ ++BROADCOM STB DPFE DRIVER ++M: Markus Mayer <mmayer@broadcom.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.yaml ++F: drivers/memory/brcmstb_dpfe.c ++ ++BROADCOM STB NAND FLASH DRIVER ++M: Brian Norris <computersforpeace@gmail.com> ++M: Kamal Dasu <kdasu.kdev@gmail.com> ++L: linux-mtd@lists.infradead.org ++L: bcm-kernel-feedback-list@broadcom.com ++S: Maintained ++F: drivers/mtd/nand/raw/brcmnand/ ++ ++BROADCOM STB PCIE DRIVER ++M: Jim Quinlan <jim2101024@gmail.com> ++M: Nicolas Saenz Julienne <nsaenz@kernel.org> ++M: Florian Fainelli <f.fainelli@gmail.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml ++F: drivers/pci/controller/pcie-brcmstb.c ++ ++BROADCOM SYSTEMPORT ETHERNET DRIVER ++M: Florian Fainelli <f.fainelli@gmail.com> ++L: bcm-kernel-feedback-list@broadcom.com ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/broadcom/bcmsysport.* ++F: drivers/net/ethernet/broadcom/unimac.h ++ ++BROADCOM TG3 GIGABIT ETHERNET DRIVER ++M: Siva Reddy Kallam <siva.kallam@broadcom.com> ++M: Prashant Sreedharan <prashant@broadcom.com> ++M: Michael Chan <mchan@broadcom.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/broadcom/tg3.* ++ ++BROADCOM VK DRIVER ++M: Scott Branden <scott.branden@broadcom.com> ++L: bcm-kernel-feedback-list@broadcom.com ++S: Supported ++F: drivers/misc/bcm-vk/ ++F: include/uapi/linux/misc/bcm_vk.h ++ ++BROCADE BFA FC SCSI DRIVER ++M: Anil Gurumurthy <anil.gurumurthy@qlogic.com> ++M: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/bfa/ ++ ++BROCADE BNA 10 GIGABIT ETHERNET DRIVER ++M: Rasesh Mody <rmody@marvell.com> ++M: Sudarsana Kalluru <skalluru@marvell.com> ++M: GR-Linux-NIC-Dev@marvell.com ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/brocade/bna/ ++ ++BSG (block layer generic sg v4 driver) ++M: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: block/bsg.c ++F: include/linux/bsg.h ++F: include/uapi/linux/bsg.h ++ ++BT87X AUDIO DRIVER ++M: Clemens Ladisch <clemens@ladisch.de> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git ++F: Documentation/sound/cards/bt87x.rst ++F: sound/pci/bt87x.c ++ ++BT8XXGPIO DRIVER ++M: Michael Buesch <m@bues.ch> ++S: Maintained ++W: http://bu3sch.de/btgpio.php ++F: drivers/gpio/gpio-bt8xx.c ++ ++BTRFS FILE SYSTEM ++M: Chris Mason <clm@fb.com> ++M: Josef Bacik <josef@toxicpanda.com> ++M: David Sterba <dsterba@suse.com> ++L: linux-btrfs@vger.kernel.org ++S: Maintained ++W: http://btrfs.wiki.kernel.org/ ++Q: http://patchwork.kernel.org/project/linux-btrfs/list/ ++C: irc://irc.libera.chat/btrfs ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git ++F: Documentation/filesystems/btrfs.rst ++F: fs/btrfs/ ++F: include/linux/btrfs* ++F: include/uapi/linux/btrfs* ++ ++BTTV VIDEO4LINUX DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Odd fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/driver-api/media/drivers/bttv* ++F: drivers/media/pci/bt8xx/bttv* ++ ++BUS FREQUENCY DRIVER FOR SAMSUNG EXYNOS ++M: Chanwoo Choi <cw00.choi@samsung.com> ++L: linux-pm@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git ++F: Documentation/devicetree/bindings/devfreq/exynos-bus.txt ++F: drivers/devfreq/exynos-bus.c ++ ++BUSLOGIC SCSI DRIVER ++M: Khalid Aziz <khalid@gonehiking.org> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: drivers/scsi/BusLogic.* ++F: drivers/scsi/FlashPoint.* ++ ++C-MEDIA CMI8788 DRIVER ++M: Clemens Ladisch <clemens@ladisch.de> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git ++F: sound/pci/oxygen/ ++ ++C-SKY ARCHITECTURE ++M: Guo Ren <guoren@kernel.org> ++L: linux-csky@vger.kernel.org ++S: Supported ++T: git https://github.com/c-sky/csky-linux.git ++F: Documentation/devicetree/bindings/csky/ ++F: Documentation/devicetree/bindings/interrupt-controller/csky,* ++F: Documentation/devicetree/bindings/timer/csky,* ++F: arch/csky/ ++F: drivers/clocksource/timer-gx6605s.c ++F: drivers/clocksource/timer-mp-csky.c ++F: drivers/irqchip/irq-csky-* ++N: csky ++K: csky ++ ++CA8210 IEEE-802.15.4 RADIO DRIVER ++M: Harry Morris <h.morris@cascoda.com> ++L: linux-wpan@vger.kernel.org ++S: Maintained ++W: https://github.com/Cascoda/ca8210-linux.git ++F: Documentation/devicetree/bindings/net/ieee802154/ca8210.txt ++F: drivers/net/ieee802154/ca8210.c ++ ++CANAAN/KENDRYTE K210 SOC FPIOA DRIVER ++M: Damien Le Moal <damien.lemoal@wdc.com> ++L: linux-riscv@lists.infradead.org ++L: linux-gpio@vger.kernel.org (pinctrl driver) ++F: Documentation/devicetree/bindings/pinctrl/canaan,k210-fpioa.yaml ++F: drivers/pinctrl/pinctrl-k210.c ++ ++CANAAN/KENDRYTE K210 SOC RESET CONTROLLER DRIVER ++M: Damien Le Moal <damien.lemoal@wdc.com> ++L: linux-kernel@vger.kernel.org ++L: linux-riscv@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml ++F: drivers/reset/reset-k210.c ++ ++CANAAN/KENDRYTE K210 SOC SYSTEM CONTROLLER DRIVER ++M: Damien Le Moal <damien.lemoal@wdc.com> ++L: linux-riscv@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml ++F: drivers/soc/canaan/ ++F: include/soc/canaan/ ++ ++CACHEFILES: FS-CACHE BACKEND FOR CACHING ON MOUNTED FILESYSTEMS ++M: David Howells <dhowells@redhat.com> ++L: linux-cachefs@redhat.com (moderated for non-subscribers) ++S: Supported ++F: Documentation/filesystems/caching/cachefiles.rst ++F: fs/cachefiles/ ++ ++CADENCE MIPI-CSI2 BRIDGES ++M: Maxime Ripard <mripard@kernel.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/cdns,*.txt ++F: drivers/media/platform/cadence/cdns-csi2* ++ ++CADENCE NAND DRIVER ++L: linux-mtd@lists.infradead.org ++S: Orphan ++F: Documentation/devicetree/bindings/mtd/cadence-nand-controller.txt ++F: drivers/mtd/nand/raw/cadence-nand-controller.c ++ ++CADENCE USB3 DRD IP DRIVER ++M: Peter Chen <peter.chen@kernel.org> ++M: Pawel Laszczak <pawell@cadence.com> ++R: Roger Quadros <rogerq@kernel.org> ++R: Aswath Govindraju <a-govindraju@ti.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git ++F: Documentation/devicetree/bindings/usb/cdns,usb3.yaml ++F: drivers/usb/cdns3/ ++X: drivers/usb/cdns3/cdnsp* ++ ++CADENCE USBSSP DRD IP DRIVER ++M: Pawel Laszczak <pawell@cadence.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git ++F: drivers/usb/cdns3/ ++X: drivers/usb/cdns3/cdns3* ++ ++CADET FM/AM RADIO RECEIVER DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-cadet* ++ ++CAFE CMOS INTEGRATED CAMERA CONTROLLER DRIVER ++L: linux-media@vger.kernel.org ++S: Orphan ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/admin-guide/media/cafe_ccic* ++F: drivers/media/platform/marvell-ccic/ ++ ++CAIF NETWORK LAYER ++L: netdev@vger.kernel.org ++S: Orphan ++F: Documentation/networking/caif/ ++F: drivers/net/caif/ ++F: include/net/caif/ ++F: include/uapi/linux/caif/ ++F: net/caif/ ++ ++CAKE QDISC ++M: Toke Høiland-Jørgensen <toke@toke.dk> ++L: cake@lists.bufferbloat.net (moderated for non-subscribers) ++S: Maintained ++F: net/sched/sch_cake.c ++ ++CAN NETWORK DRIVERS ++M: Wolfgang Grandegger <wg@grandegger.com> ++M: Marc Kleine-Budde <mkl@pengutronix.de> ++L: linux-can@vger.kernel.org ++S: Maintained ++W: https://github.com/linux-can ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git ++F: Documentation/devicetree/bindings/net/can/ ++F: Documentation/devicetree/bindings/phy/ti,tcan104x-can.yaml ++F: drivers/net/can/ ++F: drivers/phy/phy-can-transceiver.c ++F: include/linux/can/bittiming.h ++F: include/linux/can/dev.h ++F: include/linux/can/led.h ++F: include/linux/can/length.h ++F: include/linux/can/platform/ ++F: include/linux/can/rx-offload.h ++F: include/uapi/linux/can/error.h ++F: include/uapi/linux/can/netlink.h ++F: include/uapi/linux/can/vxcan.h ++ ++CAN NETWORK LAYER ++M: Oliver Hartkopp <socketcan@hartkopp.net> ++M: Marc Kleine-Budde <mkl@pengutronix.de> ++L: linux-can@vger.kernel.org ++S: Maintained ++W: https://github.com/linux-can ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git ++F: Documentation/networking/can.rst ++F: include/linux/can/can-ml.h ++F: include/linux/can/core.h ++F: include/linux/can/skb.h ++F: include/net/netns/can.h ++F: include/uapi/linux/can.h ++F: include/uapi/linux/can/bcm.h ++F: include/uapi/linux/can/gw.h ++F: include/uapi/linux/can/isotp.h ++F: include/uapi/linux/can/raw.h ++F: net/can/ ++ ++CAN-J1939 NETWORK LAYER ++M: Robin van der Gracht <robin@protonic.nl> ++M: Oleksij Rempel <o.rempel@pengutronix.de> ++R: kernel@pengutronix.de ++L: linux-can@vger.kernel.org ++S: Maintained ++F: Documentation/networking/j1939.rst ++F: include/uapi/linux/can/j1939.h ++F: net/can/j1939/ ++ ++CAPABILITIES ++M: Serge Hallyn <serge@hallyn.com> ++L: linux-security-module@vger.kernel.org ++S: Supported ++F: include/linux/capability.h ++F: include/uapi/linux/capability.h ++F: kernel/capability.c ++F: security/commoncap.c ++ ++CAPELLA MICROSYSTEMS LIGHT SENSOR DRIVER ++M: Kevin Tsai <ktsai@capellamicro.com> ++S: Maintained ++F: drivers/iio/light/cm* ++ ++CARL9170 LINUX COMMUNITY WIRELESS DRIVER ++M: Christian Lamparter <chunkeey@googlemail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++W: https://wireless.wiki.kernel.org/en/users/Drivers/carl9170 ++F: drivers/net/wireless/ath/carl9170/ ++ ++CAVIUM I2C DRIVER ++M: Robert Richter <rric@kernel.org> ++S: Odd Fixes ++W: http://www.marvell.com ++F: drivers/i2c/busses/i2c-octeon* ++F: drivers/i2c/busses/i2c-thunderx* ++ ++CAVIUM LIQUIDIO NETWORK DRIVER ++M: Derek Chickles <dchickles@marvell.com> ++M: Satanand Burla <sburla@marvell.com> ++M: Felix Manlunas <fmanlunas@marvell.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.marvell.com ++F: drivers/net/ethernet/cavium/liquidio/ ++ ++CAVIUM MMC DRIVER ++M: Robert Richter <rric@kernel.org> ++S: Odd Fixes ++W: http://www.marvell.com ++F: drivers/mmc/host/cavium* ++ ++CAVIUM OCTEON-TX CRYPTO DRIVER ++M: George Cherian <gcherian@marvell.com> ++L: linux-crypto@vger.kernel.org ++S: Supported ++W: http://www.marvell.com ++F: drivers/crypto/cavium/cpt/ ++ ++CAVIUM THUNDERX2 ARM64 SOC ++M: Robert Richter <rric@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Odd Fixes ++F: Documentation/devicetree/bindings/arm/cavium-thunder2.txt ++F: arch/arm64/boot/dts/cavium/thunder2-99xx* ++ ++CBS/ETF/TAPRIO QDISCS ++M: Vinicius Costa Gomes <vinicius.gomes@intel.com> ++S: Maintained ++L: netdev@vger.kernel.org ++F: net/sched/sch_cbs.c ++F: net/sched/sch_etf.c ++F: net/sched/sch_taprio.c ++ ++CC2520 IEEE-802.15.4 RADIO DRIVER ++M: Varka Bhadram <varkabhadram@gmail.com> ++L: linux-wpan@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/ieee802154/cc2520.txt ++F: drivers/net/ieee802154/cc2520.c ++F: include/linux/spi/cc2520.h ++ ++CCREE ARM TRUSTZONE CRYPTOCELL REE DRIVER ++M: Gilad Ben-Yossef <gilad@benyossef.com> ++L: linux-crypto@vger.kernel.org ++S: Supported ++W: https://developer.arm.com/products/system-ip/trustzone-cryptocell/cryptocell-700-family ++F: drivers/crypto/ccree/ ++ ++CCTRNG ARM TRUSTZONE CRYPTOCELL TRUE RANDOM NUMBER GENERATOR (TRNG) DRIVER ++M: Hadar Gat <hadar.gat@arm.com> ++L: linux-crypto@vger.kernel.org ++S: Supported ++F: drivers/char/hw_random/cctrng.c ++F: drivers/char/hw_random/cctrng.h ++F: Documentation/devicetree/bindings/rng/arm-cctrng.yaml ++W: https://developer.arm.com/products/system-ip/trustzone-cryptocell/cryptocell-700-family ++ ++CEC FRAMEWORK ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Supported ++W: http://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/ABI/testing/debugfs-cec-error-inj ++F: Documentation/devicetree/bindings/media/cec.txt ++F: Documentation/driver-api/media/cec-core.rst ++F: Documentation/userspace-api/media/cec ++F: drivers/media/cec/ ++F: drivers/media/rc/keymaps/rc-cec.c ++F: include/media/cec-notifier.h ++F: include/media/cec.h ++F: include/uapi/linux/cec-funcs.h ++F: include/uapi/linux/cec.h ++ ++CEC GPIO DRIVER ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Supported ++W: http://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/cec-gpio.txt ++F: drivers/media/cec/platform/cec-gpio/ ++ ++CELL BROADBAND ENGINE ARCHITECTURE ++M: Arnd Bergmann <arnd@arndb.de> ++L: linuxppc-dev@lists.ozlabs.org ++S: Supported ++W: http://www.ibm.com/developerworks/power/cell/ ++F: arch/powerpc/include/asm/cell*.h ++F: arch/powerpc/include/asm/spu*.h ++F: arch/powerpc/include/uapi/asm/spu*.h ++F: arch/powerpc/platforms/cell/ ++ ++CELLWISE CW2015 BATTERY DRIVER ++M: Tobias Schrammm <t.schramm@manjaro.org> ++S: Maintained ++F: Documentation/devicetree/bindings/power/supply/cw2015_battery.yaml ++F: drivers/power/supply/cw2015_battery.c ++ ++CEPH COMMON CODE (LIBCEPH) ++M: Ilya Dryomov <idryomov@gmail.com> ++M: Jeff Layton <jlayton@kernel.org> ++L: ceph-devel@vger.kernel.org ++S: Supported ++W: http://ceph.com/ ++T: git git://github.com/ceph/ceph-client.git ++F: include/linux/ceph/ ++F: include/linux/crush/ ++F: net/ceph/ ++ ++CEPH DISTRIBUTED FILE SYSTEM CLIENT (CEPH) ++M: Jeff Layton <jlayton@kernel.org> ++M: Ilya Dryomov <idryomov@gmail.com> ++L: ceph-devel@vger.kernel.org ++S: Supported ++W: http://ceph.com/ ++T: git git://github.com/ceph/ceph-client.git ++F: Documentation/filesystems/ceph.rst ++F: fs/ceph/ ++ ++CERTIFICATE HANDLING ++M: David Howells <dhowells@redhat.com> ++M: David Woodhouse <dwmw2@infradead.org> ++L: keyrings@vger.kernel.org ++S: Maintained ++F: Documentation/admin-guide/module-signing.rst ++F: certs/ ++F: scripts/extract-cert.c ++F: scripts/sign-file.c ++ ++CFAG12864B LCD DRIVER ++M: Miguel Ojeda <ojeda@kernel.org> ++S: Maintained ++F: drivers/auxdisplay/cfag12864b.c ++F: include/linux/cfag12864b.h ++ ++CFAG12864BFB LCD FRAMEBUFFER DRIVER ++M: Miguel Ojeda <ojeda@kernel.org> ++S: Maintained ++F: drivers/auxdisplay/cfag12864bfb.c ++F: include/linux/cfag12864b.h ++ ++CHAR and MISC DRIVERS ++M: Arnd Bergmann <arnd@arndb.de> ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git ++F: drivers/char/ ++F: drivers/misc/ ++F: include/linux/miscdevice.h ++X: drivers/char/agp/ ++X: drivers/char/hw_random/ ++X: drivers/char/ipmi/ ++X: drivers/char/random.c ++X: drivers/char/tpm/ ++ ++CHECKPATCH ++M: Andy Whitcroft <apw@canonical.com> ++M: Joe Perches <joe@perches.com> ++R: Dwaipayan Ray <dwaipayanray1@gmail.com> ++R: Lukas Bulwahn <lukas.bulwahn@gmail.com> ++S: Maintained ++F: scripts/checkpatch.pl ++ ++CHECKPATCH DOCUMENTATION ++M: Dwaipayan Ray <dwaipayanray1@gmail.com> ++M: Lukas Bulwahn <lukas.bulwahn@gmail.com> ++R: Joe Perches <joe@perches.com> ++S: Maintained ++F: Documentation/dev-tools/checkpatch.rst ++ ++CHINESE DOCUMENTATION ++M: Alex Shi <alexs@kernel.org> ++S: Maintained ++F: Documentation/translations/zh_CN/ ++ ++CHIPIDEA USB HIGH SPEED DUAL ROLE CONTROLLER ++M: Peter Chen <peter.chen@kernel.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git ++F: drivers/usb/chipidea/ ++ ++CHIPONE ICN8318 I2C TOUCHSCREEN DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/input/touchscreen/chipone_icn8318.txt ++F: drivers/input/touchscreen/chipone_icn8318.c ++ ++CHIPONE ICN8505 I2C TOUCHSCREEN DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/input/touchscreen/chipone_icn8505.c ++ ++CHROME HARDWARE PLATFORM SUPPORT ++M: Benson Leung <bleung@chromium.org> ++M: Enric Balletbo i Serra <enric.balletbo@collabora.com> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git ++F: drivers/platform/chrome/ ++ ++CHROMEOS EC CODEC DRIVER ++M: Cheng-Yi Chiang <cychiang@chromium.org> ++R: Enric Balletbo i Serra <enric.balletbo@collabora.com> ++R: Guenter Roeck <groeck@chromium.org> ++S: Maintained ++F: Documentation/devicetree/bindings/sound/google,cros-ec-codec.yaml ++F: sound/soc/codecs/cros_ec_codec.* ++ ++CHROMEOS EC SUBDRIVERS ++M: Benson Leung <bleung@chromium.org> ++M: Enric Balletbo i Serra <enric.balletbo@collabora.com> ++R: Guenter Roeck <groeck@chromium.org> ++S: Maintained ++F: drivers/power/supply/cros_usbpd-charger.c ++N: cros_ec ++N: cros-ec ++ ++CHRONTEL CH7322 CEC DRIVER ++M: Jeff Chase <jnchase@google.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml ++F: drivers/media/cec/i2c/ch7322.c ++ ++CIRRUS LOGIC AUDIO CODEC DRIVERS ++M: James Schulman <james.schulman@cirrus.com> ++M: David Rhodes <david.rhodes@cirrus.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++L: patches@opensource.cirrus.com ++S: Maintained ++F: sound/soc/codecs/cs* ++ ++CIRRUS LOGIC EP93XX ETHERNET DRIVER ++M: Hartley Sweeten <hsweeten@visionengravers.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/cirrus/ep93xx_eth.c ++ ++CIRRUS LOGIC LOCHNAGAR DRIVER ++M: Charles Keepax <ckeepax@opensource.cirrus.com> ++M: Richard Fitzgerald <rf@opensource.cirrus.com> ++L: patches@opensource.cirrus.com ++S: Supported ++F: Documentation/devicetree/bindings/clock/cirrus,lochnagar.yaml ++F: Documentation/devicetree/bindings/hwmon/cirrus,lochnagar.yaml ++F: Documentation/devicetree/bindings/mfd/cirrus,lochnagar.yaml ++F: Documentation/devicetree/bindings/pinctrl/cirrus,lochnagar.yaml ++F: Documentation/devicetree/bindings/sound/cirrus,lochnagar.yaml ++F: Documentation/hwmon/lochnagar.rst ++F: drivers/clk/clk-lochnagar.c ++F: drivers/hwmon/lochnagar-hwmon.c ++F: drivers/mfd/lochnagar-i2c.c ++F: drivers/pinctrl/cirrus/pinctrl-lochnagar.c ++F: drivers/regulator/lochnagar-regulator.c ++F: include/dt-bindings/clk/lochnagar.h ++F: include/dt-bindings/pinctrl/lochnagar.h ++F: include/linux/mfd/lochnagar* ++F: sound/soc/codecs/lochnagar-sc.c ++ ++CIRRUS LOGIC MADERA CODEC DRIVERS ++M: Charles Keepax <ckeepax@opensource.cirrus.com> ++M: Richard Fitzgerald <rf@opensource.cirrus.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++L: patches@opensource.cirrus.com ++S: Supported ++W: https://github.com/CirrusLogic/linux-drivers/wiki ++T: git https://github.com/CirrusLogic/linux-drivers.git ++F: Documentation/devicetree/bindings/mfd/cirrus,madera.yaml ++F: Documentation/devicetree/bindings/pinctrl/cirrus,madera.yaml ++F: Documentation/devicetree/bindings/sound/cirrus,madera.yaml ++F: drivers/gpio/gpio-madera* ++F: drivers/irqchip/irq-madera* ++F: drivers/mfd/cs47l* ++F: drivers/mfd/madera* ++F: drivers/pinctrl/cirrus/* ++F: include/dt-bindings/sound/madera* ++F: include/linux/irqchip/irq-madera* ++F: include/linux/mfd/madera/* ++F: include/sound/madera* ++F: sound/soc/codecs/cs47l* ++F: sound/soc/codecs/madera* ++ ++CISCO FCOE HBA DRIVER ++M: Satish Kharat <satishkh@cisco.com> ++M: Sesidhar Baddela <sebaddel@cisco.com> ++M: Karan Tilak Kumar <kartilak@cisco.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/fnic/ ++ ++CISCO SCSI HBA DRIVER ++M: Karan Tilak Kumar <kartilak@cisco.com> ++M: Sesidhar Baddela <sebaddel@cisco.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/snic/ ++ ++CISCO VIC ETHERNET NIC DRIVER ++M: Christian Benvenuti <benve@cisco.com> ++M: Govindarajulu Varadarajan <_govind@gmx.com> ++S: Supported ++F: drivers/net/ethernet/cisco/enic/ ++ ++CISCO VIC LOW LATENCY NIC DRIVER ++M: Christian Benvenuti <benve@cisco.com> ++M: Nelson Escobar <neescoba@cisco.com> ++S: Supported ++F: drivers/infiniband/hw/usnic/ ++ ++CLANG-FORMAT FILE ++M: Miguel Ojeda <ojeda@kernel.org> ++S: Maintained ++F: .clang-format ++ ++CLANG/LLVM BUILD SUPPORT ++M: Nathan Chancellor <nathan@kernel.org> ++M: Nick Desaulniers <ndesaulniers@google.com> ++L: llvm@lists.linux.dev ++S: Supported ++W: https://clangbuiltlinux.github.io/ ++B: https://github.com/ClangBuiltLinux/linux/issues ++C: irc://irc.libera.chat/clangbuiltlinux ++F: Documentation/kbuild/llvm.rst ++F: include/linux/compiler-clang.h ++F: scripts/Makefile.clang ++F: scripts/clang-tools/ ++K: \b(?i:clang|llvm)\b ++ ++CLANG CONTROL FLOW INTEGRITY SUPPORT ++M: Sami Tolvanen <samitolvanen@google.com> ++M: Kees Cook <keescook@chromium.org> ++R: Nathan Chancellor <nathan@kernel.org> ++R: Nick Desaulniers <ndesaulniers@google.com> ++L: llvm@lists.linux.dev ++S: Supported ++B: https://github.com/ClangBuiltLinux/linux/issues ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/clang/features ++F: include/linux/cfi.h ++F: kernel/cfi.c ++ ++CLEANCACHE API ++M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: include/linux/cleancache.h ++F: mm/cleancache.c ++ ++CLK API ++M: Russell King <linux@armlinux.org.uk> ++L: linux-clk@vger.kernel.org ++S: Maintained ++F: include/linux/clk.h ++ ++CLOCKSOURCE, CLOCKEVENT DRIVERS ++M: Daniel Lezcano <daniel.lezcano@linaro.org> ++M: Thomas Gleixner <tglx@linutronix.de> ++L: linux-kernel@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core ++F: Documentation/devicetree/bindings/timer/ ++F: drivers/clocksource/ ++ ++CMPC ACPI DRIVER ++M: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> ++M: Daniel Oliveira Nascimento <don@syst.com.br> ++L: platform-driver-x86@vger.kernel.org ++S: Supported ++F: drivers/platform/x86/classmate-laptop.c ++ ++COBALT MEDIA DRIVER ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/pci/cobalt/ ++ ++COCCINELLE/Semantic Patches (SmPL) ++M: Julia Lawall <Julia.Lawall@inria.fr> ++M: Gilles Muller <Gilles.Muller@inria.fr> ++M: Nicolas Palix <nicolas.palix@imag.fr> ++M: Michal Marek <michal.lkml@markovi.net> ++L: cocci@systeme.lip6.fr (moderated for non-subscribers) ++S: Supported ++W: http://coccinelle.lip6.fr/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild.git misc ++F: Documentation/dev-tools/coccinelle.rst ++F: scripts/coccicheck ++F: scripts/coccinelle/ ++ ++CODA FILE SYSTEM ++M: Jan Harkes <jaharkes@cs.cmu.edu> ++M: coda@cs.cmu.edu ++L: codalist@coda.cs.cmu.edu ++S: Maintained ++W: http://www.coda.cs.cmu.edu/ ++F: Documentation/filesystems/coda.rst ++F: fs/coda/ ++F: include/linux/coda*.h ++F: include/uapi/linux/coda*.h ++ ++CODA V4L2 MEM2MEM DRIVER ++M: Philipp Zabel <p.zabel@pengutronix.de> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/coda.yaml ++F: drivers/media/platform/coda/ ++ ++CODE OF CONDUCT ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++S: Supported ++F: Documentation/process/code-of-conduct-interpretation.rst ++F: Documentation/process/code-of-conduct.rst ++ ++COMEDI DRIVERS ++M: Ian Abbott <abbotti@mev.co.uk> ++M: H Hartley Sweeten <hsweeten@visionengravers.com> ++S: Odd Fixes ++F: drivers/comedi/ ++ ++COMMON CLK FRAMEWORK ++M: Michael Turquette <mturquette@baylibre.com> ++M: Stephen Boyd <sboyd@kernel.org> ++L: linux-clk@vger.kernel.org ++S: Maintained ++Q: http://patchwork.kernel.org/project/linux-clk/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git ++F: Documentation/devicetree/bindings/clock/ ++F: drivers/clk/ ++F: include/linux/clk-pr* ++F: include/linux/clk/ ++F: include/linux/of_clk.h ++X: drivers/clk/clkdev.c ++ ++COMMON INTERNET FILE SYSTEM CLIENT (CIFS) ++M: Steve French <sfrench@samba.org> ++L: linux-cifs@vger.kernel.org ++L: samba-technical@lists.samba.org (moderated for non-subscribers) ++S: Supported ++W: http://linux-cifs.samba.org/ ++T: git git://git.samba.org/sfrench/cifs-2.6.git ++F: Documentation/admin-guide/cifs/ ++F: fs/cifs/ ++F: fs/smbfs_common/ ++ ++COMPACTPCI HOTPLUG CORE ++M: Scott Murray <scott@spiteful.org> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: drivers/pci/hotplug/cpci_hotplug* ++ ++COMPACTPCI HOTPLUG GENERIC DRIVER ++M: Scott Murray <scott@spiteful.org> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: drivers/pci/hotplug/cpcihp_generic.c ++ ++COMPACTPCI HOTPLUG ZIATECH ZT5550 DRIVER ++M: Scott Murray <scott@spiteful.org> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: drivers/pci/hotplug/cpcihp_zt5550.* ++ ++COMPAL LAPTOP SUPPORT ++M: Cezary Jackiewicz <cezary.jackiewicz@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/compal-laptop.c ++ ++COMPILER ATTRIBUTES ++M: Miguel Ojeda <ojeda@kernel.org> ++R: Nick Desaulniers <ndesaulniers@google.com> ++S: Maintained ++F: include/linux/compiler_attributes.h ++ ++COMPUTE EXPRESS LINK (CXL) ++M: Alison Schofield <alison.schofield@intel.com> ++M: Vishal Verma <vishal.l.verma@intel.com> ++M: Ira Weiny <ira.weiny@intel.com> ++M: Ben Widawsky <ben.widawsky@intel.com> ++M: Dan Williams <dan.j.williams@intel.com> ++L: linux-cxl@vger.kernel.org ++S: Maintained ++F: drivers/cxl/ ++F: include/uapi/linux/cxl_mem.h ++ ++CONEXANT ACCESSRUNNER USB DRIVER ++L: accessrunner-general@lists.sourceforge.net ++S: Orphan ++W: http://accessrunner.sourceforge.net/ ++F: drivers/usb/atm/cxacru.c ++ ++CONFIGFS ++M: Joel Becker <jlbec@evilplan.org> ++M: Christoph Hellwig <hch@lst.de> ++S: Supported ++T: git git://git.infradead.org/users/hch/configfs.git ++F: fs/configfs/ ++F: include/linux/configfs.h ++F: samples/configfs/ ++ ++CONSOLE SUBSYSTEM ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++S: Supported ++F: drivers/video/console/ ++F: include/linux/console* ++ ++CONTEXT TRACKING ++M: Frederic Weisbecker <frederic@kernel.org> ++S: Maintained ++F: kernel/context_tracking.c ++F: include/linux/context_tracking* ++ ++CONTROL GROUP (CGROUP) ++M: Tejun Heo <tj@kernel.org> ++M: Zefan Li <lizefan.x@bytedance.com> ++M: Johannes Weiner <hannes@cmpxchg.org> ++L: cgroups@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git ++F: Documentation/admin-guide/cgroup-v1/ ++F: Documentation/admin-guide/cgroup-v2.rst ++F: include/linux/cgroup* ++F: kernel/cgroup/ ++ ++CONTROL GROUP - BLOCK IO CONTROLLER (BLKIO) ++M: Tejun Heo <tj@kernel.org> ++M: Jens Axboe <axboe@kernel.dk> ++L: cgroups@vger.kernel.org ++L: linux-block@vger.kernel.org ++T: git git://git.kernel.dk/linux-block ++F: Documentation/admin-guide/cgroup-v1/blkio-controller.rst ++F: block/bfq-cgroup.c ++F: block/blk-cgroup.c ++F: block/blk-iolatency.c ++F: block/blk-throttle.c ++F: include/linux/blk-cgroup.h ++ ++CONTROL GROUP - CPUSET ++M: Zefan Li <lizefan.x@bytedance.com> ++L: cgroups@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git ++F: Documentation/admin-guide/cgroup-v1/cpusets.rst ++F: include/linux/cpuset.h ++F: kernel/cgroup/cpuset.c ++ ++CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG) ++M: Johannes Weiner <hannes@cmpxchg.org> ++M: Michal Hocko <mhocko@kernel.org> ++M: Vladimir Davydov <vdavydov.dev@gmail.com> ++L: cgroups@vger.kernel.org ++L: linux-mm@kvack.org ++S: Maintained ++F: mm/memcontrol.c ++F: mm/swap_cgroup.c ++ ++CORETEMP HARDWARE MONITORING DRIVER ++M: Fenghua Yu <fenghua.yu@intel.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/coretemp.rst ++F: drivers/hwmon/coretemp.c ++ ++CORSAIR-CPRO HARDWARE MONITOR DRIVER ++M: Marius Zachmann <mail@mariuszachmann.de> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: drivers/hwmon/corsair-cpro.c ++ ++CORSAIR-PSU HARDWARE MONITOR DRIVER ++M: Wilken Gottwalt <wilken.gottwalt@posteo.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/corsair-psu.rst ++F: drivers/hwmon/corsair-psu.c ++ ++COSA/SRP SYNC SERIAL DRIVER ++M: Jan "Yenya" Kasprzak <kas@fi.muni.cz> ++S: Maintained ++W: http://www.fi.muni.cz/~kas/cosa/ ++F: drivers/net/wan/cosa* ++ ++COUNTER SUBSYSTEM ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-bus-counter ++F: Documentation/driver-api/generic-counter.rst ++F: drivers/counter/ ++F: include/linux/counter.h ++F: include/linux/counter_enum.h ++ ++CP2615 I2C DRIVER ++M: Bence Csókás <bence98@sch.bme.hu> ++S: Maintained ++F: drivers/i2c/busses/i2c-cp2615.c ++ ++CPMAC ETHERNET DRIVER ++M: Florian Fainelli <f.fainelli@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/ti/cpmac.c ++ ++CPU FREQUENCY DRIVERS - VEXPRESS SPC ARM BIG LITTLE ++M: Viresh Kumar <viresh.kumar@linaro.org> ++M: Sudeep Holla <sudeep.holla@arm.com> ++L: linux-pm@vger.kernel.org ++S: Maintained ++W: http://www.arm.com/products/processors/technologies/biglittleprocessing.php ++F: drivers/cpufreq/vexpress-spc-cpufreq.c ++ ++CPU FREQUENCY SCALING FRAMEWORK ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++M: Viresh Kumar <viresh.kumar@linaro.org> ++L: linux-pm@vger.kernel.org ++S: Maintained ++B: https://bugzilla.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git (For ARM Updates) ++F: Documentation/admin-guide/pm/cpufreq.rst ++F: Documentation/admin-guide/pm/intel_pstate.rst ++F: Documentation/cpu-freq/ ++F: Documentation/devicetree/bindings/cpufreq/ ++F: drivers/cpufreq/ ++F: include/linux/cpufreq.h ++F: include/linux/sched/cpufreq.h ++F: kernel/sched/cpufreq*.c ++F: tools/testing/selftests/cpufreq/ ++ ++CPU IDLE TIME MANAGEMENT FRAMEWORK ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++M: Daniel Lezcano <daniel.lezcano@linaro.org> ++L: linux-pm@vger.kernel.org ++S: Maintained ++B: https://bugzilla.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git ++F: Documentation/admin-guide/pm/cpuidle.rst ++F: Documentation/driver-api/pm/cpuidle.rst ++F: drivers/cpuidle/ ++F: include/linux/cpuidle.h ++ ++CPU POWER MONITORING SUBSYSTEM ++M: Thomas Renninger <trenn@suse.com> ++M: Shuah Khan <shuah@kernel.org> ++M: Shuah Khan <skhan@linuxfoundation.org> ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: tools/power/cpupower/ ++ ++CPUID/MSR DRIVER ++M: "H. Peter Anvin" <hpa@zytor.com> ++S: Maintained ++F: arch/x86/kernel/cpuid.c ++F: arch/x86/kernel/msr.c ++ ++CPUIDLE DRIVER - ARM BIG LITTLE ++M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> ++M: Daniel Lezcano <daniel.lezcano@linaro.org> ++L: linux-pm@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git ++F: drivers/cpuidle/cpuidle-big_little.c ++ ++CPUIDLE DRIVER - ARM EXYNOS ++M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> ++M: Daniel Lezcano <daniel.lezcano@linaro.org> ++M: Kukjin Kim <kgene@kernel.org> ++L: linux-pm@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Supported ++F: arch/arm/mach-exynos/pm.c ++F: drivers/cpuidle/cpuidle-exynos.c ++F: include/linux/platform_data/cpuidle-exynos.h ++ ++CPUIDLE DRIVER - ARM PSCI ++M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> ++M: Sudeep Holla <sudeep.holla@arm.com> ++L: linux-pm@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: drivers/cpuidle/cpuidle-psci.c ++ ++CPUIDLE DRIVER - ARM PSCI PM DOMAIN ++M: Ulf Hansson <ulf.hansson@linaro.org> ++L: linux-pm@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: drivers/cpuidle/cpuidle-psci.h ++F: drivers/cpuidle/cpuidle-psci-domain.c ++ ++CRAMFS FILESYSTEM ++M: Nicolas Pitre <nico@fluxnic.net> ++S: Maintained ++F: Documentation/filesystems/cramfs.rst ++F: fs/cramfs/ ++ ++CREATIVE SB0540 ++M: Bastien Nocera <hadess@hadess.net> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/hid/hid-creative-sb0540.c ++ ++CRYPTO API ++M: Herbert Xu <herbert@gondor.apana.org.au> ++M: "David S. Miller" <davem@davemloft.net> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git ++F: Documentation/crypto/ ++F: Documentation/devicetree/bindings/crypto/ ++F: arch/*/crypto/ ++F: crypto/ ++F: drivers/crypto/ ++F: include/crypto/ ++F: include/linux/crypto* ++F: lib/crypto/ ++ ++CRYPTOGRAPHIC RANDOM NUMBER GENERATOR ++M: Neil Horman <nhorman@tuxdriver.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: crypto/ansi_cprng.c ++F: crypto/rng.c ++ ++CS3308 MEDIA DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++W: http://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/cs3308.c ++ ++CS5535 Audio ALSA driver ++M: Jaya Kumar <jayakumar.alsa@gmail.com> ++S: Maintained ++F: sound/pci/cs5535audio/ ++ ++CSI DRIVERS FOR ALLWINNER V3s ++M: Yong Deng <yong.deng@magewell.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml ++F: drivers/media/platform/sunxi/sun6i-csi/ ++ ++CW1200 WLAN driver ++M: Solomon Peachy <pizza@shaftnet.org> ++S: Maintained ++F: drivers/net/wireless/st/cw1200/ ++ ++CX18 VIDEO4LINUX DRIVER ++M: Andy Walls <awalls@md.metrocast.net> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/pci/cx18/ ++F: include/uapi/linux/ivtv* ++ ++CX2341X MPEG ENCODER HELPER MODULE ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/common/cx2341x* ++F: include/media/drv-intf/cx2341x.h ++ ++CX24120 MEDIA DRIVER ++M: Jemma Denson <jdenson@gmail.com> ++M: Patrick Boettcher <patrick.boettcher@posteo.de> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/dvb-frontends/cx24120* ++ ++CX88 VIDEO4LINUX DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Odd fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/driver-api/media/drivers/cx88* ++F: drivers/media/pci/cx88/ ++ ++CXD2820R MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/cxd2820r* ++ ++CXGB3 ETHERNET DRIVER (CXGB3) ++M: Raju Rangoju <rajur@chelsio.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.chelsio.com ++F: drivers/net/ethernet/chelsio/cxgb3/ ++ ++CXGB3 ISCSI DRIVER (CXGB3I) ++M: Karen Xie <kxie@chelsio.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: http://www.chelsio.com ++F: drivers/scsi/cxgbi/cxgb3i ++ ++CXGB4 CRYPTO DRIVER (chcr) ++M: Ayush Sawal <ayush.sawal@chelsio.com> ++M: Vinay Kumar Yadav <vinay.yadav@chelsio.com> ++M: Rohit Maheshwari <rohitm@chelsio.com> ++L: linux-crypto@vger.kernel.org ++S: Supported ++W: http://www.chelsio.com ++F: drivers/crypto/chelsio ++ ++CXGB4 INLINE CRYPTO DRIVER ++M: Ayush Sawal <ayush.sawal@chelsio.com> ++M: Vinay Kumar Yadav <vinay.yadav@chelsio.com> ++M: Rohit Maheshwari <rohitm@chelsio.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.chelsio.com ++F: drivers/net/ethernet/chelsio/inline_crypto/ ++ ++CXGB4 ETHERNET DRIVER (CXGB4) ++M: Raju Rangoju <rajur@chelsio.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.chelsio.com ++F: drivers/net/ethernet/chelsio/cxgb4/ ++ ++CXGB4 ISCSI DRIVER (CXGB4I) ++M: Karen Xie <kxie@chelsio.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: http://www.chelsio.com ++F: drivers/scsi/cxgbi/cxgb4i ++ ++CXGB4 IWARP RNIC DRIVER (IW_CXGB4) ++M: Potnuri Bharat Teja <bharat@chelsio.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++W: http://www.openfabrics.org ++F: drivers/infiniband/hw/cxgb4/ ++F: include/uapi/rdma/cxgb4-abi.h ++ ++CXGB4VF ETHERNET DRIVER (CXGB4VF) ++M: Raju Rangoju <rajur@chelsio.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.chelsio.com ++F: drivers/net/ethernet/chelsio/cxgb4vf/ ++ ++CXL (IBM Coherent Accelerator Processor Interface CAPI) DRIVER ++M: Frederic Barrat <fbarrat@linux.ibm.com> ++M: Andrew Donnellan <ajd@linux.ibm.com> ++L: linuxppc-dev@lists.ozlabs.org ++S: Supported ++F: Documentation/ABI/testing/sysfs-class-cxl ++F: Documentation/powerpc/cxl.rst ++F: arch/powerpc/platforms/powernv/pci-cxl.c ++F: drivers/misc/cxl/ ++F: include/misc/cxl* ++F: include/uapi/misc/cxl.h ++ ++CXLFLASH (IBM Coherent Accelerator Processor Interface CAPI Flash) SCSI DRIVER ++M: Manoj N. Kumar <manoj@linux.ibm.com> ++M: Matthew R. Ochs <mrochs@linux.ibm.com> ++M: Uma Krishnan <ukrishn@linux.ibm.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: Documentation/powerpc/cxlflash.rst ++F: drivers/scsi/cxlflash/ ++F: include/uapi/scsi/cxlflash_ioctl.h ++ ++CYBERPRO FB DRIVER ++M: Russell King <linux@armlinux.org.uk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.armlinux.org.uk/ ++F: drivers/video/fbdev/cyber2000fb.* ++ ++CYCLADES PC300 DRIVER ++S: Orphan ++F: drivers/net/wan/pc300* ++ ++CYPRESS_FIRMWARE MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/common/cypress_firmware* ++ ++CYPRESS CY8CTMA140 TOUCHSCREEN DRIVER ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/input/touchscreen/cy8ctma140.c ++ ++CYTTSP TOUCHSCREEN DRIVER ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/input/touchscreen/cyttsp* ++ ++D-LINK DIR-685 TOUCHKEYS DRIVER ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-input@vger.kernel.org ++S: Supported ++F: drivers/input/keyboard/dlink-dir685-touchkeys.c ++ ++DALLAS/MAXIM DS1685-FAMILY REAL TIME CLOCK ++M: Joshua Kinard <kumba@gentoo.org> ++S: Maintained ++F: drivers/rtc/rtc-ds1685.c ++F: include/linux/rtc/ds1685.h ++ ++DAMA SLAVE for AX.25 ++M: Joerg Reuter <jreuter@yaina.de> ++L: linux-hams@vger.kernel.org ++S: Maintained ++W: http://yaina.de/jreuter/ ++W: http://www.qsl.net/dl1bke/ ++F: net/ax25/af_ax25.c ++F: net/ax25/ax25_dev.c ++F: net/ax25/ax25_ds_* ++F: net/ax25/ax25_in.c ++F: net/ax25/ax25_out.c ++F: net/ax25/ax25_timer.c ++F: net/ax25/sysctl_net_ax25.c ++ ++DATA ACCESS MONITOR ++M: SeongJae Park <sjpark@amazon.de> ++L: linux-mm@kvack.org ++S: Maintained ++F: Documentation/admin-guide/mm/damon/ ++F: Documentation/vm/damon/ ++F: include/linux/damon.h ++F: include/trace/events/damon.h ++F: mm/damon/ ++F: tools/testing/selftests/damon/ ++ ++DAVICOM FAST ETHERNET (DMFE) NETWORK DRIVER ++L: netdev@vger.kernel.org ++S: Orphan ++F: Documentation/networking/device_drivers/ethernet/dec/dmfe.rst ++F: drivers/net/ethernet/dec/tulip/dmfe.c ++ ++DC390/AM53C974 SCSI driver ++M: Hannes Reinecke <hare@suse.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: drivers/scsi/am53c974.c ++ ++DC395x SCSI driver ++M: Oliver Neukum <oliver@neukum.org> ++M: Ali Akcaagac <aliakc@web.de> ++M: Jamie Lenehan <lenehan@twibble.org> ++L: dc395x@twibble.org ++S: Maintained ++W: http://twibble.org/dist/dc395x/ ++W: http://lists.twibble.org/mailman/listinfo/dc395x/ ++F: Documentation/scsi/dc395x.rst ++F: drivers/scsi/dc395x.* ++ ++DCCP PROTOCOL ++L: dccp@vger.kernel.org ++S: Orphan ++W: http://www.linuxfoundation.org/collaborate/workgroups/networking/dccp ++F: include/linux/dccp.h ++F: include/linux/tfrc.h ++F: include/uapi/linux/dccp.h ++F: net/dccp/ ++ ++DECnet NETWORK LAYER ++L: linux-decnet-user@lists.sourceforge.net ++S: Orphan ++W: http://linux-decnet.sourceforge.net ++F: Documentation/networking/decnet.rst ++F: net/decnet/ ++ ++DECSTATION PLATFORM SUPPORT ++M: "Maciej W. Rozycki" <macro@orcam.me.uk> ++L: linux-mips@vger.kernel.org ++S: Maintained ++W: http://www.linux-mips.org/wiki/DECstation ++F: arch/mips/dec/ ++F: arch/mips/include/asm/dec/ ++F: arch/mips/include/asm/mach-dec/ ++ ++DEFXX FDDI NETWORK DRIVER ++M: "Maciej W. Rozycki" <macro@orcam.me.uk> ++S: Maintained ++F: drivers/net/fddi/defxx.* ++ ++DEFZA FDDI NETWORK DRIVER ++M: "Maciej W. Rozycki" <macro@orcam.me.uk> ++S: Maintained ++F: drivers/net/fddi/defza.* ++ ++DEINTERLACE DRIVERS FOR ALLWINNER H3 ++M: Jernej Skrabec <jernej.skrabec@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/allwinner,sun8i-h3-deinterlace.yaml ++F: drivers/media/platform/sunxi/sun8i-di/ ++ ++DELL LAPTOP DRIVER ++M: Matthew Garrett <mjg59@srcf.ucam.org> ++M: Pali Rohár <pali@kernel.org> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/dell/dell-laptop.c ++ ++DELL LAPTOP FREEFALL DRIVER ++M: Pali Rohár <pali@kernel.org> ++S: Maintained ++F: drivers/platform/x86/dell/dell-smo8800.c ++ ++DELL LAPTOP RBTN DRIVER ++M: Pali Rohár <pali@kernel.org> ++S: Maintained ++F: drivers/platform/x86/dell/dell-rbtn.* ++ ++DELL LAPTOP SMM DRIVER ++M: Pali Rohár <pali@kernel.org> ++S: Maintained ++F: drivers/hwmon/dell-smm-hwmon.c ++F: include/uapi/linux/i8k.h ++ ++DELL REMOTE BIOS UPDATE DRIVER ++M: Stuart Hayes <stuart.w.hayes@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/dell/dell_rbu.c ++ ++DELL SMBIOS DRIVER ++M: Pali Rohár <pali@kernel.org> ++L: Dell.Client.Kernel@dell.com ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/dell/dell-smbios.* ++ ++DELL SMBIOS SMM DRIVER ++L: Dell.Client.Kernel@dell.com ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/dell/dell-smbios-smm.c ++ ++DELL SMBIOS WMI DRIVER ++L: Dell.Client.Kernel@dell.com ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/dell/dell-smbios-wmi.c ++F: tools/wmi/dell-smbios-example.c ++ ++DELL SYSTEMS MANAGEMENT BASE DRIVER (dcdbas) ++M: Stuart Hayes <stuart.w.hayes@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: Documentation/driver-api/dcdbas.rst ++F: drivers/platform/x86/dell/dcdbas.* ++ ++DELL WMI DESCRIPTOR DRIVER ++L: Dell.Client.Kernel@dell.com ++S: Maintained ++F: drivers/platform/x86/dell/dell-wmi-descriptor.c ++ ++DELL WMI SYSMAN DRIVER ++M: Divya Bharathi <divya.bharathi@dell.com> ++M: Prasanth Ksr <prasanth.ksr@dell.com> ++L: Dell.Client.Kernel@dell.com ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-class-firmware-attributes ++F: drivers/platform/x86/dell/dell-wmi-sysman/ ++ ++DELL WMI NOTIFICATIONS DRIVER ++M: Matthew Garrett <mjg59@srcf.ucam.org> ++M: Pali Rohár <pali@kernel.org> ++S: Maintained ++F: drivers/platform/x86/dell/dell-wmi-base.c ++ ++DELL WMI HARDWARE PRIVACY SUPPORT ++M: Perry Yuan <Perry.Yuan@dell.com> ++L: Dell.Client.Kernel@dell.com ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/dell/dell-wmi-privacy.c ++ ++DELTA ST MEDIA DRIVER ++M: Hugues Fruchet <hugues.fruchet@foss.st.com> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/platform/sti/delta ++ ++DELTA DPS920AB PSU DRIVER ++M: Robert Marko <robert.marko@sartura.hr> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/dps920ab.rst ++F: drivers/hwmon/pmbus/dps920ab.c ++ ++DENALI NAND DRIVER ++L: linux-mtd@lists.infradead.org ++S: Orphan ++F: drivers/mtd/nand/raw/denali* ++ ++DESIGNWARE EDMA CORE IP DRIVER ++M: Gustavo Pimentel <gustavo.pimentel@synopsys.com> ++L: dmaengine@vger.kernel.org ++S: Maintained ++F: drivers/dma/dw-edma/ ++F: include/linux/dma/edma.h ++ ++DESIGNWARE XDATA IP DRIVER ++M: Gustavo Pimentel <gustavo.pimentel@synopsys.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/misc-devices/dw-xdata-pcie.rst ++F: drivers/misc/dw-xdata-pcie.c ++ ++DESIGNWARE USB2 DRD IP DRIVER ++M: Minas Harutyunyan <hminas@synopsys.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git ++F: drivers/usb/dwc2/ ++ ++DESIGNWARE USB3 DRD IP DRIVER ++M: Felipe Balbi <balbi@kernel.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git ++F: drivers/usb/dwc3/ ++ ++DEVANTECH SRF ULTRASONIC RANGER IIO DRIVER ++M: Andreas Klinger <ak@it-klinger.de> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-bus-iio-distance-srf08 ++F: drivers/iio/proximity/srf*.c ++ ++DEVICE COREDUMP (DEV_COREDUMP) ++M: Johannes Berg <johannes@sipsolutions.net> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/base/devcoredump.c ++F: include/linux/devcoredump.h ++ ++DEVICE DEPENDENCY HELPER SCRIPT ++M: Saravana Kannan <saravanak@google.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: scripts/dev-needs.sh ++ ++DEVICE DIRECT ACCESS (DAX) ++M: Dan Williams <dan.j.williams@intel.com> ++M: Vishal Verma <vishal.l.verma@intel.com> ++M: Dave Jiang <dave.jiang@intel.com> ++L: nvdimm@lists.linux.dev ++S: Supported ++F: drivers/dax/ ++ ++DEVICE FREQUENCY (DEVFREQ) ++M: MyungJoo Ham <myungjoo.ham@samsung.com> ++M: Kyungmin Park <kyungmin.park@samsung.com> ++M: Chanwoo Choi <cw00.choi@samsung.com> ++L: linux-pm@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git ++F: Documentation/devicetree/bindings/devfreq/ ++F: drivers/devfreq/ ++F: include/linux/devfreq.h ++F: include/trace/events/devfreq.h ++ ++DEVICE FREQUENCY EVENT (DEVFREQ-EVENT) ++M: Chanwoo Choi <cw00.choi@samsung.com> ++L: linux-pm@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git ++F: Documentation/devicetree/bindings/devfreq/event/ ++F: drivers/devfreq/devfreq-event.c ++F: drivers/devfreq/event/ ++F: include/dt-bindings/pmu/exynos_ppmu.h ++F: include/linux/devfreq-event.h ++ ++DEVICE NUMBER REGISTRY ++M: Torben Mathiasen <device@lanana.org> ++S: Maintained ++W: http://lanana.org/docs/device-list/index.html ++ ++DEVICE RESOURCE MANAGEMENT HELPERS ++M: Hans de Goede <hdegoede@redhat.com> ++R: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> ++S: Maintained ++F: include/linux/devm-helpers.h ++ ++DEVICE-MAPPER (LVM) ++M: Alasdair Kergon <agk@redhat.com> ++M: Mike Snitzer <snitzer@redhat.com> ++M: dm-devel@redhat.com ++L: dm-devel@redhat.com ++S: Maintained ++W: http://sources.redhat.com/dm ++Q: http://patchwork.kernel.org/project/dm-devel/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git ++T: quilt http://people.redhat.com/agk/patches/linux/editing/ ++F: Documentation/admin-guide/device-mapper/ ++F: drivers/md/Kconfig ++F: drivers/md/Makefile ++F: drivers/md/dm* ++F: drivers/md/persistent-data/ ++F: include/linux/device-mapper.h ++F: include/linux/dm-*.h ++F: include/uapi/linux/dm-*.h ++ ++DEVLINK ++M: Jiri Pirko <jiri@nvidia.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/devlink ++F: include/net/devlink.h ++F: include/uapi/linux/devlink.h ++F: net/core/devlink.c ++ ++DH ELECTRONICS IMX6 DHCOM BOARD SUPPORT ++M: Christoph Niedermaier <cniedermaier@dh-electronics.com> ++L: kernel@dh-electronics.com ++S: Maintained ++F: arch/arm/boot/dts/imx6*-dhcom-* ++ ++DH ELECTRONICS STM32MP1 DHCOM/DHCOR BOARD SUPPORT ++M: Marek Vasut <marex@denx.de> ++L: kernel@dh-electronics.com ++S: Maintained ++F: arch/arm/boot/dts/stm32mp1*-dhcom-* ++F: arch/arm/boot/dts/stm32mp1*-dhcor-* ++ ++DIALOG SEMICONDUCTOR DRIVERS ++M: Support Opensource <support.opensource@diasemi.com> ++S: Supported ++W: http://www.dialog-semiconductor.com/products ++F: Documentation/devicetree/bindings/input/da90??-onkey.txt ++F: Documentation/devicetree/bindings/input/dlg,da72??.txt ++F: Documentation/devicetree/bindings/mfd/da90*.txt ++F: Documentation/devicetree/bindings/regulator/dlg,da9*.yaml ++F: Documentation/devicetree/bindings/regulator/da92*.txt ++F: Documentation/devicetree/bindings/regulator/slg51000.txt ++F: Documentation/devicetree/bindings/sound/da[79]*.txt ++F: Documentation/devicetree/bindings/thermal/da90??-thermal.txt ++F: Documentation/devicetree/bindings/watchdog/da90??-wdt.txt ++F: Documentation/hwmon/da90??.rst ++F: drivers/gpio/gpio-da90??.c ++F: drivers/hwmon/da90??-hwmon.c ++F: drivers/iio/adc/da91??-*.c ++F: drivers/input/misc/da72??.[ch] ++F: drivers/input/misc/da90??_onkey.c ++F: drivers/input/touchscreen/da9052_tsi.c ++F: drivers/leds/leds-da90??.c ++F: drivers/mfd/da903x.c ++F: drivers/mfd/da90??-*.c ++F: drivers/mfd/da91??-*.c ++F: drivers/pinctrl/pinctrl-da90??.c ++F: drivers/power/supply/da9052-battery.c ++F: drivers/power/supply/da91??-*.c ++F: drivers/regulator/da9???-regulator.[ch] ++F: drivers/regulator/slg51000-regulator.[ch] ++F: drivers/rtc/rtc-da90??.c ++F: drivers/thermal/da90??-thermal.c ++F: drivers/video/backlight/da90??_bl.c ++F: drivers/watchdog/da90??_wdt.c ++F: include/dt-bindings/regulator/dlg,da9*-regulator.h ++F: include/linux/mfd/da903x.h ++F: include/linux/mfd/da9052/ ++F: include/linux/mfd/da9055/ ++F: include/linux/mfd/da9062/ ++F: include/linux/mfd/da9063/ ++F: include/linux/mfd/da9150/ ++F: include/linux/regulator/da9211.h ++F: include/sound/da[79]*.h ++F: sound/soc/codecs/da[79]*.[ch] ++ ++DIAMOND SYSTEMS GPIO-MM GPIO DRIVER ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-gpio-mm.c ++ ++DIOLAN U2C-12 I2C DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: drivers/i2c/busses/i2c-diolan-u2c.c ++ ++DIRECTORY NOTIFICATION (DNOTIFY) ++M: Jan Kara <jack@suse.cz> ++R: Amir Goldstein <amir73il@gmail.com> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++F: Documentation/filesystems/dnotify.rst ++F: fs/notify/dnotify/ ++F: include/linux/dnotify.h ++ ++DISK GEOMETRY AND PARTITION HANDLING ++M: Andries Brouwer <aeb@cwi.nl> ++S: Maintained ++W: http://www.win.tue.nl/~aeb/linux/Large-Disk.html ++W: http://www.win.tue.nl/~aeb/linux/zip/zip-1.html ++W: http://www.win.tue.nl/~aeb/partitions/partition_types-1.html ++ ++DISKQUOTA ++M: Jan Kara <jack@suse.com> ++S: Maintained ++F: Documentation/filesystems/quota.rst ++F: fs/quota/ ++F: include/linux/quota*.h ++F: include/uapi/linux/quota*.h ++ ++DISPLAYLINK USB 2.0 FRAMEBUFFER DRIVER (UDLFB) ++M: Bernie Thompson <bernie@plugable.com> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++W: http://plugable.com/category/projects/udlfb/ ++F: Documentation/fb/udlfb.rst ++F: drivers/video/fbdev/udlfb.c ++F: include/video/udlfb.h ++ ++DISTRIBUTED LOCK MANAGER (DLM) ++M: Christine Caulfield <ccaulfie@redhat.com> ++M: David Teigland <teigland@redhat.com> ++L: cluster-devel@redhat.com ++S: Supported ++W: http://sources.redhat.com/cluster/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm.git ++F: fs/dlm/ ++ ++DMA BUFFER SHARING FRAMEWORK ++M: Sumit Semwal <sumit.semwal@linaro.org> ++M: Christian König <christian.koenig@amd.com> ++L: linux-media@vger.kernel.org ++L: dri-devel@lists.freedesktop.org ++L: linaro-mm-sig@lists.linaro.org (moderated for non-subscribers) ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/driver-api/dma-buf.rst ++F: drivers/dma-buf/ ++F: include/linux/*fence.h ++F: include/linux/dma-buf* ++F: include/linux/dma-resv.h ++K: \bdma_(?:buf|fence|resv)\b ++ ++DMA GENERIC OFFLOAD ENGINE SUBSYSTEM ++M: Vinod Koul <vkoul@kernel.org> ++L: dmaengine@vger.kernel.org ++S: Maintained ++Q: https://patchwork.kernel.org/project/linux-dmaengine/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git ++F: Documentation/devicetree/bindings/dma/ ++F: Documentation/driver-api/dmaengine/ ++F: drivers/dma/ ++F: include/linux/dma/ ++F: include/linux/dmaengine.h ++F: include/linux/of_dma.h ++ ++DMA MAPPING HELPERS ++M: Christoph Hellwig <hch@lst.de> ++M: Marek Szyprowski <m.szyprowski@samsung.com> ++R: Robin Murphy <robin.murphy@arm.com> ++L: iommu@lists.linux-foundation.org ++S: Supported ++W: http://git.infradead.org/users/hch/dma-mapping.git ++T: git git://git.infradead.org/users/hch/dma-mapping.git ++F: include/asm-generic/dma-mapping.h ++F: include/linux/dma-direct.h ++F: include/linux/dma-mapping.h ++F: include/linux/dma-map-ops.h ++F: kernel/dma/ ++ ++DMA MAPPING BENCHMARK ++M: Barry Song <song.bao.hua@hisilicon.com> ++L: iommu@lists.linux-foundation.org ++F: kernel/dma/map_benchmark.c ++F: tools/testing/selftests/dma/ ++ ++DMA-BUF HEAPS FRAMEWORK ++M: Sumit Semwal <sumit.semwal@linaro.org> ++R: Benjamin Gaignard <benjamin.gaignard@linaro.org> ++R: Liam Mark <lmark@codeaurora.org> ++R: Laura Abbott <labbott@redhat.com> ++R: Brian Starkey <Brian.Starkey@arm.com> ++R: John Stultz <john.stultz@linaro.org> ++L: linux-media@vger.kernel.org ++L: dri-devel@lists.freedesktop.org ++L: linaro-mm-sig@lists.linaro.org (moderated for non-subscribers) ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/dma-buf/dma-heap.c ++F: drivers/dma-buf/heaps/* ++F: include/linux/dma-heap.h ++F: include/uapi/linux/dma-heap.h ++ ++DMC FREQUENCY DRIVER FOR SAMSUNG EXYNOS5422 ++M: Lukasz Luba <lukasz.luba@arm.com> ++L: linux-pm@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/memory-controllers/samsung,exynos5422-dmc.yaml ++F: drivers/memory/samsung/exynos5422-dmc.c ++ ++DME1737 HARDWARE MONITOR DRIVER ++M: Juerg Haefliger <juergh@gmail.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/dme1737.rst ++F: drivers/hwmon/dme1737.c ++ ++DMI/SMBIOS SUPPORT ++M: Jean Delvare <jdelvare@suse.com> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging.git dmi-for-next ++F: Documentation/ABI/testing/sysfs-firmware-dmi-tables ++F: drivers/firmware/dmi-id.c ++F: drivers/firmware/dmi_scan.c ++F: include/linux/dmi.h ++ ++DOCUMENTATION ++M: Jonathan Corbet <corbet@lwn.net> ++L: linux-doc@vger.kernel.org ++S: Maintained ++P: Documentation/doc-guide/maintainer-profile.rst ++T: git git://git.lwn.net/linux.git docs-next ++F: Documentation/ ++F: scripts/documentation-file-ref-check ++F: scripts/kernel-doc ++F: scripts/sphinx-pre-install ++X: Documentation/ABI/ ++X: Documentation/admin-guide/media/ ++X: Documentation/devicetree/ ++X: Documentation/driver-api/media/ ++X: Documentation/firmware-guide/acpi/ ++X: Documentation/i2c/ ++X: Documentation/power/ ++X: Documentation/spi/ ++X: Documentation/userspace-api/media/ ++ ++DOCUMENTATION REPORTING ISSUES ++M: Thorsten Leemhuis <linux@leemhuis.info> ++L: linux-doc@vger.kernel.org ++S: Maintained ++F: Documentation/admin-guide/reporting-issues.rst ++ ++DOCUMENTATION SCRIPTS ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-doc@vger.kernel.org ++S: Maintained ++F: Documentation/sphinx/parse-headers.pl ++F: scripts/documentation-file-ref-check ++F: scripts/sphinx-pre-install ++ ++DOCUMENTATION/ITALIAN ++M: Federico Vaga <federico.vaga@vaga.pv.it> ++L: linux-doc@vger.kernel.org ++S: Maintained ++F: Documentation/translations/it_IT ++ ++DONGWOON DW9714 LENS VOICE COIL DRIVER ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.txt ++F: drivers/media/i2c/dw9714.c ++ ++DONGWOON DW9768 LENS VOICE COIL DRIVER ++M: Dongchun Zhu <dongchun.zhu@mediatek.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml ++F: drivers/media/i2c/dw9768.c ++ ++DONGWOON DW9807 LENS VOICE COIL DRIVER ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/dongwoon,dw9807-vcm.txt ++F: drivers/media/i2c/dw9807-vcm.c ++ ++DOUBLETALK DRIVER ++M: "James R. Van Zandt" <jrv@vanzandt.mv.com> ++L: blinux-list@redhat.com ++S: Maintained ++F: drivers/char/dtlk.c ++F: include/linux/dtlk.h ++ ++DPAA2 DATAPATH I/O (DPIO) DRIVER ++M: Roy Pledge <Roy.Pledge@nxp.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/soc/fsl/dpio ++ ++DPAA2 ETHERNET DRIVER ++M: Ioana Ciornei <ioana.ciornei@nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/networking/device_drivers/ethernet/freescale/dpaa2/ethernet-driver.rst ++F: Documentation/networking/device_drivers/ethernet/freescale/dpaa2/mac-phy-support.rst ++F: drivers/net/ethernet/freescale/dpaa2/Kconfig ++F: drivers/net/ethernet/freescale/dpaa2/Makefile ++F: drivers/net/ethernet/freescale/dpaa2/dpaa2-eth* ++F: drivers/net/ethernet/freescale/dpaa2/dpaa2-mac* ++F: drivers/net/ethernet/freescale/dpaa2/dpkg.h ++F: drivers/net/ethernet/freescale/dpaa2/dpmac* ++F: drivers/net/ethernet/freescale/dpaa2/dpni* ++ ++DPAA2 ETHERNET SWITCH DRIVER ++M: Ioana Ciornei <ioana.ciornei@nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/networking/device_drivers/ethernet/freescale/dpaa2/switch-driver.rst ++F: drivers/net/ethernet/freescale/dpaa2/dpaa2-switch* ++F: drivers/net/ethernet/freescale/dpaa2/dpsw* ++ ++DPT_I2O SCSI RAID DRIVER ++M: Adaptec OEM Raid Solutions <aacraid@microsemi.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++W: http://www.adaptec.com/ ++F: drivers/scsi/dpt* ++F: drivers/scsi/dpt/ ++ ++DRBD DRIVER ++M: Philipp Reisner <philipp.reisner@linbit.com> ++M: Lars Ellenberg <lars.ellenberg@linbit.com> ++L: drbd-dev@lists.linbit.com ++S: Supported ++W: http://www.drbd.org ++T: git git://git.linbit.com/linux-drbd.git ++T: git git://git.linbit.com/drbd-8.4.git ++F: Documentation/admin-guide/blockdev/ ++F: drivers/block/drbd/ ++F: lib/lru_cache.c ++ ++DRIVER COMPONENT FRAMEWORK ++L: dri-devel@lists.freedesktop.org ++F: drivers/base/component.c ++F: include/linux/component.h ++ ++DRIVER CORE, KOBJECTS, DEBUGFS AND SYSFS ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++R: "Rafael J. Wysocki" <rafael@kernel.org> ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git ++F: Documentation/core-api/kobject.rst ++F: drivers/base/ ++F: fs/debugfs/ ++F: fs/sysfs/ ++F: include/linux/debugfs.h ++F: include/linux/kobj* ++F: lib/kobj* ++ ++DRIVERS FOR OMAP ADAPTIVE VOLTAGE SCALING (AVS) ++M: Nishanth Menon <nm@ti.com> ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: drivers/soc/ti/smartreflex.c ++F: include/linux/power/smartreflex.h ++ ++DRM DRIVER FOR ALLWINNER DE2 AND DE3 ENGINE ++M: Maxime Ripard <mripard@kernel.org> ++M: Chen-Yu Tsai <wens@csie.org> ++R: Jernej Skrabec <jernej.skrabec@gmail.com> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/sun4i/sun8i* ++ ++DRM DRIVER FOR ARM PL111 CLCD ++M: Emma Anholt <emma@anholt.net> ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/pl111/ ++ ++DRM DRIVER FOR ARM VERSATILE TFT PANELS ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/panel/arm,versatile-tft-panel.yaml ++F: drivers/gpu/drm/panel/panel-arm-versatile.c ++ ++DRM DRIVER FOR ASPEED BMC GFX ++M: Joel Stanley <joel@jms.id.au> ++L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers) ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/gpu/aspeed-gfx.txt ++F: drivers/gpu/drm/aspeed/ ++ ++DRM DRIVER FOR AST SERVER GRAPHICS CHIPS ++M: Dave Airlie <airlied@redhat.com> ++R: Thomas Zimmermann <tzimmermann@suse.de> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/ast/ ++ ++DRM DRIVER FOR BOCHS VIRTUAL GPU ++M: Gerd Hoffmann <kraxel@redhat.com> ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/tiny/bochs.c ++ ++DRM DRIVER FOR BOE HIMAX8279D PANELS ++M: Jerry Han <hanxu5@huaqin.corp-partner.google.com> ++S: Maintained ++F: Documentation/devicetree/bindings/display/panel/boe,himax8279d.yaml ++F: drivers/gpu/drm/panel/panel-boe-himax8279d.c ++ ++DRM DRIVER FOR CHIPONE ICN6211 MIPI-DSI to RGB CONVERTER BRIDGE ++M: Jagan Teki <jagan@amarulasolutions.com> ++S: Maintained ++F: Documentation/devicetree/bindings/display/bridge/chipone,icn6211.yaml ++F: drivers/gpu/drm/bridge/chipone-icn6211.c ++ ++DRM DRIVER FOR FARADAY TVE200 TV ENCODER ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/tve200/ ++ ++DRM DRIVER FOR FEIXIN K101 IM2BA02 MIPI-DSI LCD PANELS ++M: Icenowy Zheng <icenowy@aosc.io> ++S: Maintained ++F: Documentation/devicetree/bindings/display/panel/feixin,k101-im2ba02.yaml ++F: drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c ++ ++DRM DRIVER FOR FEIYANG FY07024DI26A30-D MIPI-DSI LCD PANELS ++M: Jagan Teki <jagan@amarulasolutions.com> ++S: Maintained ++F: Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.yaml ++F: drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c ++ ++DRM DRIVER FOR GENERIC USB DISPLAY ++M: Noralf Trønnes <noralf@tronnes.org> ++S: Maintained ++W: https://github.com/notro/gud/wiki ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/gud/ ++F: include/drm/gud.h ++ ++DRM DRIVER FOR GRAIN MEDIA GM12U320 PROJECTORS ++M: Hans de Goede <hdegoede@redhat.com> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/tiny/gm12u320.c ++ ++DRM DRIVER FOR HX8357D PANELS ++M: Emma Anholt <emma@anholt.net> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/himax,hx8357d.txt ++F: drivers/gpu/drm/tiny/hx8357d.c ++ ++DRM DRIVER FOR ILITEK ILI9225 PANELS ++M: David Lechner <david@lechnology.com> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/ilitek,ili9225.txt ++F: drivers/gpu/drm/tiny/ili9225.c ++ ++DRM DRIVER FOR ILITEK ILI9486 PANELS ++M: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/ilitek,ili9486.yaml ++F: drivers/gpu/drm/tiny/ili9486.c ++ ++DRM DRIVER FOR INTEL I810 VIDEO CARDS ++S: Orphan / Obsolete ++F: drivers/gpu/drm/i810/ ++F: include/uapi/drm/i810_drm.h ++ ++DRM DRIVER FOR LVDS PANELS ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: dri-devel@lists.freedesktop.org ++T: git git://anongit.freedesktop.org/drm/drm-misc ++S: Maintained ++F: drivers/gpu/drm/panel/panel-lvds.c ++F: Documentation/devicetree/bindings/display/panel/lvds.yaml ++ ++DRM DRIVER FOR MANTIX MLAF057WE51 PANELS ++M: Guido Günther <agx@sigxcpu.org> ++R: Purism Kernel Team <kernel@puri.sm> ++S: Maintained ++F: Documentation/devicetree/bindings/display/panel/mantix,mlaf057we51-x.yaml ++F: drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c ++ ++DRM DRIVER FOR MATROX G200/G400 GRAPHICS CARDS ++S: Orphan / Obsolete ++F: drivers/gpu/drm/mga/ ++F: include/uapi/drm/mga_drm.h ++ ++DRM DRIVER FOR MGA G200 GRAPHICS CHIPS ++M: Dave Airlie <airlied@redhat.com> ++R: Thomas Zimmermann <tzimmermann@suse.de> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/mgag200/ ++ ++DRM DRIVER FOR MI0283QT ++M: Noralf Trønnes <noralf@tronnes.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt ++F: drivers/gpu/drm/tiny/mi0283qt.c ++ ++DRM DRIVER FOR MSM ADRENO GPU ++M: Rob Clark <robdclark@gmail.com> ++M: Sean Paul <sean@poorly.run> ++L: linux-arm-msm@vger.kernel.org ++L: dri-devel@lists.freedesktop.org ++L: freedreno@lists.freedesktop.org ++S: Maintained ++T: git https://gitlab.freedesktop.org/drm/msm.git ++F: Documentation/devicetree/bindings/display/msm/ ++F: drivers/gpu/drm/msm/ ++F: include/uapi/drm/msm_drm.h ++ ++DRM DRIVER FOR NOVATEK NT35510 PANELS ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml ++F: drivers/gpu/drm/panel/panel-novatek-nt35510.c ++ ++DRM DRIVER FOR NOVATEK NT36672A PANELS ++M: Sumit Semwal <sumit.semwal@linaro.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml ++F: drivers/gpu/drm/panel/panel-novatek-nt36672a.c ++ ++DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS ++M: Ben Skeggs <bskeggs@redhat.com> ++L: dri-devel@lists.freedesktop.org ++L: nouveau@lists.freedesktop.org ++S: Supported ++T: git git://github.com/skeggsb/linux ++F: drivers/gpu/drm/nouveau/ ++F: include/uapi/drm/nouveau_drm.h ++ ++DRM DRIVER FOR OLIMEX LCD-OLINUXINO PANELS ++M: Stefan Mavrodiev <stefan@olimex.com> ++S: Maintained ++F: Documentation/devicetree/bindings/display/panel/olimex,lcd-olinuxino.yaml ++F: drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.c ++ ++DRM DRIVER FOR PERVASIVE DISPLAYS REPAPER PANELS ++M: Noralf Trønnes <noralf@tronnes.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/repaper.txt ++F: drivers/gpu/drm/tiny/repaper.c ++ ++DRM DRIVER FOR QEMU'S CIRRUS DEVICE ++M: Dave Airlie <airlied@redhat.com> ++M: Gerd Hoffmann <kraxel@redhat.com> ++L: virtualization@lists.linux-foundation.org ++S: Obsolete ++W: https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/ ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/tiny/cirrus.c ++ ++DRM DRIVER FOR QXL VIRTUAL GPU ++M: Dave Airlie <airlied@redhat.com> ++M: Gerd Hoffmann <kraxel@redhat.com> ++L: virtualization@lists.linux-foundation.org ++L: spice-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/qxl/ ++F: include/uapi/drm/qxl_drm.h ++ ++DRM DRIVER FOR RAGE 128 VIDEO CARDS ++S: Orphan / Obsolete ++F: drivers/gpu/drm/r128/ ++F: include/uapi/drm/r128_drm.h ++ ++DRM DRIVER FOR RAYDIUM RM67191 PANELS ++M: Robert Chiras <robert.chiras@nxp.com> ++S: Maintained ++F: Documentation/devicetree/bindings/display/panel/raydium,rm67191.yaml ++F: drivers/gpu/drm/panel/panel-raydium-rm67191.c ++ ++DRM DRIVER FOR SAMSUNG DB7430 PANELS ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml ++F: drivers/gpu/drm/panel/panel-samsung-db7430.c ++ ++DRM DRIVER FOR SITRONIX ST7703 PANELS ++M: Guido Günther <agx@sigxcpu.org> ++R: Purism Kernel Team <kernel@puri.sm> ++R: Ondrej Jirman <megous@megous.com> ++S: Maintained ++F: Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.yaml ++F: drivers/gpu/drm/panel/panel-sitronix-st7703.c ++ ++DRM DRIVER FOR SAVAGE VIDEO CARDS ++S: Orphan / Obsolete ++F: drivers/gpu/drm/savage/ ++F: include/uapi/drm/savage_drm.h ++ ++DRM DRIVER FOR SIMPLE FRAMEBUFFERS ++M: Thomas Zimmermann <tzimmermann@suse.de> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/tiny/simpledrm.c ++ ++DRM DRIVER FOR SIS VIDEO CARDS ++S: Orphan / Obsolete ++F: drivers/gpu/drm/sis/ ++F: include/uapi/drm/sis_drm.h ++ ++DRM DRIVER FOR SITRONIX ST7586 PANELS ++M: David Lechner <david@lechnology.com> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/sitronix,st7586.txt ++F: drivers/gpu/drm/tiny/st7586.c ++ ++DRM DRIVER FOR SITRONIX ST7701 PANELS ++M: Jagan Teki <jagan@amarulasolutions.com> ++S: Maintained ++F: Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml ++F: drivers/gpu/drm/panel/panel-sitronix-st7701.c ++ ++DRM DRIVER FOR SITRONIX ST7735R PANELS ++M: David Lechner <david@lechnology.com> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/sitronix,st7735r.yaml ++F: drivers/gpu/drm/tiny/st7735r.c ++ ++DRM DRIVER FOR SONY ACX424AKP PANELS ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/panel/panel-sony-acx424akp.c ++ ++DRM DRIVER FOR ST-ERICSSON MCDE ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/ste,mcde.yaml ++F: drivers/gpu/drm/mcde/ ++ ++DRM DRIVER FOR TDFX VIDEO CARDS ++S: Orphan / Obsolete ++F: drivers/gpu/drm/tdfx/ ++ ++DRM DRIVER FOR TPO TPG110 PANELS ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml ++F: drivers/gpu/drm/panel/panel-tpo-tpg110.c ++ ++DRM DRIVER FOR USB DISPLAYLINK VIDEO ADAPTERS ++M: Dave Airlie <airlied@redhat.com> ++R: Sean Paul <sean@poorly.run> ++R: Thomas Zimmermann <tzimmermann@suse.de> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/udl/ ++ ++DRM DRIVER FOR VIRTUAL KERNEL MODESETTING (VKMS) ++M: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> ++M: Melissa Wen <melissa.srw@gmail.com> ++R: Haneen Mohammed <hamohammed.sa@gmail.com> ++R: Daniel Vetter <daniel@ffwll.ch> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/gpu/vkms.rst ++F: drivers/gpu/drm/vkms/ ++ ++DRM DRIVER FOR VIRTUALBOX VIRTUAL GPU ++M: Hans de Goede <hdegoede@redhat.com> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/vboxvideo/ ++ ++DRM DRIVER FOR VMWARE VIRTUAL GPU ++M: "VMware Graphics" <linux-graphics-maintainer@vmware.com> ++M: Zack Rusin <zackr@vmware.com> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/vmwgfx/ ++F: include/uapi/drm/vmwgfx_drm.h ++ ++DRM DRIVER FOR WIDECHIPS WS2401 PANELS ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml ++F: drivers/gpu/drm/panel/panel-widechips-ws2401.c ++ ++DRM DRIVERS ++M: David Airlie <airlied@linux.ie> ++M: Daniel Vetter <daniel@ffwll.ch> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++B: https://gitlab.freedesktop.org/drm ++C: irc://irc.oftc.net/dri-devel ++T: git git://anongit.freedesktop.org/drm/drm ++F: Documentation/devicetree/bindings/display/ ++F: Documentation/devicetree/bindings/gpu/ ++F: Documentation/gpu/ ++F: drivers/gpu/ ++F: include/drm/ ++F: include/linux/vga* ++F: include/uapi/drm/ ++ ++DRM DRIVERS AND MISC GPU PATCHES ++M: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> ++M: Maxime Ripard <mripard@kernel.org> ++M: Thomas Zimmermann <tzimmermann@suse.de> ++S: Maintained ++W: https://01.org/linuxgraphics/gfx-docs/maintainer-tools/drm-misc.html ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/gpu/ ++F: drivers/gpu/drm/* ++F: drivers/gpu/vga/ ++F: include/drm/drm* ++F: include/linux/vga* ++F: include/uapi/drm/drm* ++ ++DRM DRIVERS FOR ALLWINNER A10 ++M: Maxime Ripard <mripard@kernel.org> ++M: Chen-Yu Tsai <wens@csie.org> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/allwinner* ++F: drivers/gpu/drm/sun4i/ ++ ++DRM DRIVERS FOR AMLOGIC SOCS ++M: Neil Armstrong <narmstrong@baylibre.com> ++L: dri-devel@lists.freedesktop.org ++L: linux-amlogic@lists.infradead.org ++S: Supported ++W: http://linux-meson.com/ ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml ++F: Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml ++F: Documentation/gpu/meson.rst ++F: drivers/gpu/drm/meson/ ++ ++DRM DRIVERS FOR ATMEL HLCDC ++M: Sam Ravnborg <sam@ravnborg.org> ++M: Boris Brezillon <bbrezillon@kernel.org> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/atmel/ ++F: drivers/gpu/drm/atmel-hlcdc/ ++ ++DRM DRIVERS FOR BRIDGE CHIPS ++M: Andrzej Hajda <a.hajda@samsung.com> ++M: Neil Armstrong <narmstrong@baylibre.com> ++M: Robert Foss <robert.foss@linaro.org> ++R: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> ++R: Jonas Karlman <jonas@kwiboo.se> ++R: Jernej Skrabec <jernej.skrabec@gmail.com> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/bridge/ ++ ++DRM DRIVERS FOR EXYNOS ++M: Inki Dae <inki.dae@samsung.com> ++M: Joonyoung Shim <jy0922.shim@samsung.com> ++M: Seung-Woo Kim <sw0312.kim@samsung.com> ++M: Kyungmin Park <kyungmin.park@samsung.com> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git ++F: Documentation/devicetree/bindings/display/exynos/ ++F: drivers/gpu/drm/exynos/ ++F: include/uapi/drm/exynos_drm.h ++ ++DRM DRIVERS FOR FREESCALE DCU ++M: Stefan Agner <stefan@agner.ch> ++M: Alison Wang <alison.wang@nxp.com> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/fsl,dcu.txt ++F: Documentation/devicetree/bindings/display/fsl,tcon.txt ++F: drivers/gpu/drm/fsl-dcu/ ++ ++DRM DRIVERS FOR FREESCALE IMX ++M: Philipp Zabel <p.zabel@pengutronix.de> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++F: Documentation/devicetree/bindings/display/imx/ ++F: drivers/gpu/drm/imx/ ++F: drivers/gpu/ipu-v3/ ++ ++DRM DRIVERS FOR GMA500 (Poulsbo, Moorestown and derivative chipsets) ++M: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://github.com/patjak/drm-gma500 ++F: drivers/gpu/drm/gma500/ ++ ++DRM DRIVERS FOR HISILICON ++M: Xinliang Liu <xinliang.liu@linaro.org> ++M: Tian Tao <tiantao6@hisilicon.com> ++R: John Stultz <john.stultz@linaro.org> ++R: Xinwei Kong <kong.kongxinwei@hisilicon.com> ++R: Chen Feng <puck.chen@hisilicon.com> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/hisilicon/ ++F: drivers/gpu/drm/hisilicon/ ++ ++DRM DRIVER FOR HYPERV SYNTHETIC VIDEO DEVICE ++M: Deepak Rawat <drawat.floss@gmail.com> ++L: linux-hyperv@vger.kernel.org ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/hyperv ++ ++DRM DRIVERS FOR LIMA ++M: Qiang Yu <yuq825@gmail.com> ++L: dri-devel@lists.freedesktop.org ++L: lima@lists.freedesktop.org (moderated for non-subscribers) ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/lima/ ++F: include/uapi/drm/lima_drm.h ++ ++DRM DRIVERS FOR MEDIATEK ++M: Chun-Kuang Hu <chunkuang.hu@kernel.org> ++M: Philipp Zabel <p.zabel@pengutronix.de> ++L: dri-devel@lists.freedesktop.org ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: Documentation/devicetree/bindings/display/mediatek/ ++F: drivers/gpu/drm/mediatek/ ++F: drivers/phy/mediatek/phy-mtk-hdmi* ++F: drivers/phy/mediatek/phy-mtk-mipi* ++ ++DRM DRIVERS FOR NVIDIA TEGRA ++M: Thierry Reding <thierry.reding@gmail.com> ++L: dri-devel@lists.freedesktop.org ++L: linux-tegra@vger.kernel.org ++S: Supported ++T: git git://anongit.freedesktop.org/tegra/linux.git ++F: Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt ++F: drivers/gpu/drm/tegra/ ++F: drivers/gpu/host1x/ ++F: include/linux/host1x.h ++F: include/uapi/drm/tegra_drm.h ++ ++DRM DRIVERS FOR RENESAS ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++M: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> ++L: dri-devel@lists.freedesktop.org ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++T: git git://linuxtv.org/pinchartl/media drm/du/next ++F: Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.yaml ++F: Documentation/devicetree/bindings/display/bridge/renesas,lvds.yaml ++F: Documentation/devicetree/bindings/display/renesas,du.yaml ++F: drivers/gpu/drm/rcar-du/ ++F: drivers/gpu/drm/shmobile/ ++F: include/linux/platform_data/shmob_drm.h ++ ++DRM DRIVERS FOR ROCKCHIP ++M: Sandy Huang <hjc@rock-chips.com> ++M: Heiko Stübner <heiko@sntech.de> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/rockchip/ ++F: drivers/gpu/drm/rockchip/ ++ ++DRM DRIVERS FOR STI ++M: Benjamin Gaignard <benjamin.gaignard@linaro.org> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/st,stih4xx.txt ++F: drivers/gpu/drm/sti ++ ++DRM DRIVERS FOR STM ++M: Yannick Fertre <yannick.fertre@foss.st.com> ++M: Philippe Cornu <philippe.cornu@foss.st.com> ++M: Benjamin Gaignard <benjamin.gaignard@linaro.org> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml ++F: drivers/gpu/drm/stm ++ ++DRM DRIVERS FOR TI KEYSTONE ++M: Jyri Sarha <jyri.sarha@iki.fi> ++M: Tomi Valkeinen <tomba@kernel.org> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml ++F: Documentation/devicetree/bindings/display/ti/ti,j721e-dss.yaml ++F: Documentation/devicetree/bindings/display/ti/ti,k2g-dss.yaml ++F: drivers/gpu/drm/tidss/ ++ ++DRM DRIVERS FOR TI LCDC ++M: Jyri Sarha <jyri.sarha@iki.fi> ++R: Tomi Valkeinen <tomba@kernel.org> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++F: Documentation/devicetree/bindings/display/tilcdc/ ++F: drivers/gpu/drm/tilcdc/ ++ ++DRM DRIVERS FOR TI OMAP ++M: Tomi Valkeinen <tomba@kernel.org> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++F: Documentation/devicetree/bindings/display/ti/ ++F: drivers/gpu/drm/omapdrm/ ++ ++DRM DRIVERS FOR V3D ++M: Emma Anholt <emma@anholt.net> ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml ++F: drivers/gpu/drm/v3d/ ++F: include/uapi/drm/v3d_drm.h ++ ++DRM DRIVERS FOR VC4 ++M: Emma Anholt <emma@anholt.net> ++M: Maxime Ripard <mripard@kernel.org> ++S: Supported ++T: git git://github.com/anholt/linux ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/brcm,bcm2835-*.yaml ++F: drivers/gpu/drm/vc4/ ++F: include/uapi/drm/vc4_drm.h ++ ++DRM DRIVERS FOR VIVANTE GPU IP ++M: Lucas Stach <l.stach@pengutronix.de> ++R: Russell King <linux+etnaviv@armlinux.org.uk> ++R: Christian Gmeiner <christian.gmeiner@gmail.com> ++L: etnaviv@lists.freedesktop.org (moderated for non-subscribers) ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++F: Documentation/devicetree/bindings/gpu/vivante,gc.yaml ++F: drivers/gpu/drm/etnaviv/ ++F: include/uapi/drm/etnaviv_drm.h ++ ++DRM DRIVERS FOR XEN ++M: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> ++L: dri-devel@lists.freedesktop.org ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/gpu/xen-front.rst ++F: drivers/gpu/drm/xen/ ++ ++DRM DRIVERS FOR XILINX ++M: Hyun Kwon <hyun.kwon@xilinx.com> ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/xlnx/ ++F: drivers/gpu/drm/xlnx/ ++ ++DRM PANEL DRIVERS ++M: Thierry Reding <thierry.reding@gmail.com> ++R: Sam Ravnborg <sam@ravnborg.org> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/panel/ ++F: drivers/gpu/drm/drm_panel.c ++F: drivers/gpu/drm/panel/ ++F: include/drm/drm_panel.h ++ ++DRM TTM SUBSYSTEM ++M: Christian Koenig <christian.koenig@amd.com> ++M: Huang Rui <ray.huang@amd.com> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/ttm/ ++F: include/drm/ttm/ ++ ++DSBR100 USB FM RADIO DRIVER ++M: Alexey Klimov <klimov.linux@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/dsbr100.c ++ ++DT3155 MEDIA DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/pci/dt3155/ ++ ++DVB_USB_AF9015 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/af9015* ++ ++DVB_USB_AF9035 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/af9035* ++ ++DVB_USB_ANYSEE MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/anysee* ++ ++DVB_USB_AU6610 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/au6610* ++ ++DVB_USB_CE6230 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/ce6230* ++ ++DVB_USB_CXUSB MEDIA DRIVER ++M: Michael Krufky <mkrufky@linuxtv.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://github.com/mkrufky ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/dvb-usb/cxusb* ++ ++DVB_USB_EC168 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/ec168* ++ ++DVB_USB_GL861 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/gl861* ++ ++DVB_USB_MXL111SF MEDIA DRIVER ++M: Michael Krufky <mkrufky@linuxtv.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://github.com/mkrufky ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mkrufky/mxl111sf.git ++F: drivers/media/usb/dvb-usb-v2/mxl111sf* ++ ++DVB_USB_RTL28XXU MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/rtl28xxu* ++ ++DVB_USB_V2 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/dvb-usb-v2/dvb_usb* ++F: drivers/media/usb/dvb-usb-v2/usb_urb.c ++ ++DYNAMIC DEBUG ++M: Jason Baron <jbaron@akamai.com> ++S: Maintained ++F: include/linux/dynamic_debug.h ++F: lib/dynamic_debug.c ++ ++DYNAMIC INTERRUPT MODERATION ++M: Tal Gilboa <talgi@nvidia.com> ++S: Maintained ++F: Documentation/networking/net_dim.rst ++F: include/linux/dim.h ++F: lib/dim/ ++ ++DZ DECSTATION DZ11 SERIAL DRIVER ++M: "Maciej W. Rozycki" <macro@orcam.me.uk> ++S: Maintained ++F: drivers/tty/serial/dz.* ++ ++E3X0 POWER BUTTON DRIVER ++M: Moritz Fischer <moritz.fischer@ettus.com> ++L: usrp-users@lists.ettus.com ++S: Supported ++W: http://www.ettus.com ++F: Documentation/devicetree/bindings/input/e3x0-button.txt ++F: drivers/input/misc/e3x0-button.c ++ ++E4000 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/tuners/e4000* ++ ++EARTH_PT1 MEDIA DRIVER ++M: Akihiro Tsukada <tskd08@gmail.com> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++F: drivers/media/pci/pt1/ ++ ++EARTH_PT3 MEDIA DRIVER ++M: Akihiro Tsukada <tskd08@gmail.com> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++F: drivers/media/pci/pt3/ ++ ++EC100 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/ec100* ++ ++ECRYPT FILE SYSTEM ++M: Tyler Hicks <code@tyhicks.com> ++L: ecryptfs@vger.kernel.org ++S: Odd Fixes ++W: http://ecryptfs.org ++W: https://launchpad.net/ecryptfs ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs.git ++F: Documentation/filesystems/ecryptfs.rst ++F: fs/ecryptfs/ ++ ++EDAC-AMD64 ++M: Yazen Ghannam <yazen.ghannam@amd.com> ++L: linux-edac@vger.kernel.org ++S: Supported ++F: drivers/edac/amd64_edac* ++F: drivers/edac/mce_amd* ++ ++EDAC-ARMADA ++M: Jan Luebbe <jlu@pengutronix.de> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/memory-controllers/marvell,mvebu-sdram-controller.yaml ++F: drivers/edac/armada_xp_* ++ ++EDAC-AST2500 ++M: Stefan Schaeckeler <sschaeck@cisco.com> ++S: Supported ++F: Documentation/devicetree/bindings/edac/aspeed-sdram-edac.txt ++F: drivers/edac/aspeed_edac.c ++ ++EDAC-BLUEFIELD ++M: Shravan Kumar Ramani <shravankr@nvidia.com> ++S: Supported ++F: drivers/edac/bluefield_edac.c ++ ++EDAC-CALXEDA ++M: Andre Przywara <andre.przywara@arm.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/highbank* ++ ++EDAC-CAVIUM OCTEON ++M: Ralf Baechle <ralf@linux-mips.org> ++L: linux-edac@vger.kernel.org ++L: linux-mips@vger.kernel.org ++S: Supported ++F: drivers/edac/octeon_edac* ++ ++EDAC-CAVIUM THUNDERX ++M: Robert Richter <rric@kernel.org> ++L: linux-edac@vger.kernel.org ++S: Odd Fixes ++F: drivers/edac/thunderx_edac* ++ ++EDAC-CORE ++M: Borislav Petkov <bp@alien8.de> ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++M: Tony Luck <tony.luck@intel.com> ++R: James Morse <james.morse@arm.com> ++R: Robert Richter <rric@kernel.org> ++L: linux-edac@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git edac-for-next ++F: Documentation/admin-guide/ras.rst ++F: Documentation/driver-api/edac.rst ++F: drivers/edac/ ++F: include/linux/edac.h ++ ++EDAC-DMC520 ++M: Lei Wang <lewan@microsoft.com> ++L: linux-edac@vger.kernel.org ++S: Supported ++F: drivers/edac/dmc520_edac.c ++ ++EDAC-E752X ++M: Mark Gross <mark.gross@intel.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/e752x_edac.c ++ ++EDAC-E7XXX ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/e7xxx_edac.c ++ ++EDAC-FSL_DDR ++M: York Sun <york.sun@nxp.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/fsl_ddr_edac.* ++ ++EDAC-GHES ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/ghes_edac.c ++ ++EDAC-I10NM ++M: Tony Luck <tony.luck@intel.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/i10nm_base.c ++ ++EDAC-I3000 ++L: linux-edac@vger.kernel.org ++S: Orphan ++F: drivers/edac/i3000_edac.c ++ ++EDAC-I5000 ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/i5000_edac.c ++ ++EDAC-I5400 ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/i5400_edac.c ++ ++EDAC-I7300 ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/i7300_edac.c ++ ++EDAC-I7CORE ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/i7core_edac.c ++ ++EDAC-I82443BXGX ++M: Tim Small <tim@buttersideup.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/i82443bxgx_edac.c ++ ++EDAC-I82975X ++M: "Arvind R." <arvino55@gmail.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/i82975x_edac.c ++ ++EDAC-IE31200 ++M: Jason Baron <jbaron@akamai.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/ie31200_edac.c ++ ++EDAC-IGEN6 ++M: Tony Luck <tony.luck@intel.com> ++R: Qiuxu Zhuo <qiuxu.zhuo@intel.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/igen6_edac.c ++ ++EDAC-MPC85XX ++M: Johannes Thumshirn <morbidrsa@gmail.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/mpc85xx_edac.[ch] ++ ++EDAC-PASEMI ++M: Egor Martovetsky <egor@pasemi.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/pasemi_edac.c ++ ++EDAC-PND2 ++M: Tony Luck <tony.luck@intel.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/pnd2_edac.[ch] ++ ++EDAC-QCOM ++M: Channagoud Kadabi <ckadabi@codeaurora.org> ++M: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org> ++L: linux-arm-msm@vger.kernel.org ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/qcom_edac.c ++ ++EDAC-R82600 ++M: Tim Small <tim@buttersideup.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/r82600_edac.c ++ ++EDAC-SBRIDGE ++M: Tony Luck <tony.luck@intel.com> ++R: Qiuxu Zhuo <qiuxu.zhuo@intel.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/sb_edac.c ++ ++EDAC-SIFIVE ++M: Yash Shah <yash.shah@sifive.com> ++L: linux-edac@vger.kernel.org ++S: Supported ++F: drivers/edac/sifive_edac.c ++ ++EDAC-SKYLAKE ++M: Tony Luck <tony.luck@intel.com> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: drivers/edac/skx_*.[ch] ++ ++EDAC-TI ++M: Tero Kristo <kristo@kernel.org> ++L: linux-edac@vger.kernel.org ++S: Odd Fixes ++F: drivers/edac/ti_edac.c ++ ++EDIROL UA-101/UA-1000 DRIVER ++M: Clemens Ladisch <clemens@ladisch.de> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git ++F: sound/usb/misc/ua101.c ++ ++EFI TEST DRIVER ++M: Ivan Hu <ivan.hu@canonical.com> ++M: Ard Biesheuvel <ardb@kernel.org> ++L: linux-efi@vger.kernel.org ++S: Maintained ++F: drivers/firmware/efi/test/ ++ ++EFI VARIABLE FILESYSTEM ++M: Matthew Garrett <matthew.garrett@nebula.com> ++M: Jeremy Kerr <jk@ozlabs.org> ++M: Ard Biesheuvel <ardb@kernel.org> ++L: linux-efi@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git ++F: fs/efivarfs/ ++ ++EFIFB FRAMEBUFFER DRIVER ++M: Peter Jones <pjones@redhat.com> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/efifb.c ++ ++EFS FILESYSTEM ++S: Orphan ++W: http://aeschi.ch.eu.org/efs/ ++F: fs/efs/ ++ ++EHEA (IBM pSeries eHEA 10Gb ethernet adapter) DRIVER ++M: Douglas Miller <dougmill@linux.ibm.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/ibm/ehea/ ++ ++EM28XX VIDEO4LINUX DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/admin-guide/media/em28xx* ++F: drivers/media/usb/em28xx/ ++ ++EMBEDDED LINUX ++M: Matt Mackall <mpm@selenic.com> ++M: David Woodhouse <dwmw2@infradead.org> ++L: linux-embedded@vger.kernel.org ++S: Maintained ++ ++EMMC CMDQ HOST CONTROLLER INTERFACE (CQHCI) DRIVER ++M: Adrian Hunter <adrian.hunter@intel.com> ++M: Ritesh Harjani <riteshh@codeaurora.org> ++M: Asutosh Das <asutoshd@codeaurora.org> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++F: drivers/mmc/host/cqhci* ++ ++EMULEX 10Gbps iSCSI - OneConnect DRIVER ++M: Subbu Seetharaman <subbu.seetharaman@broadcom.com> ++M: Ketan Mukadam <ketan.mukadam@broadcom.com> ++M: Jitendra Bhivare <jitendra.bhivare@broadcom.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: http://www.broadcom.com ++F: drivers/scsi/be2iscsi/ ++ ++EMULEX 10Gbps NIC BE2, BE3-R, Lancer, Skyhawk-R DRIVER (be2net) ++M: Ajit Khaparde <ajit.khaparde@broadcom.com> ++M: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> ++M: Somnath Kotur <somnath.kotur@broadcom.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.emulex.com ++F: drivers/net/ethernet/emulex/benet/ ++ ++EMULEX ONECONNECT ROCE DRIVER ++M: Selvin Xavier <selvin.xavier@broadcom.com> ++L: linux-rdma@vger.kernel.org ++S: Odd Fixes ++W: http://www.broadcom.com ++F: drivers/infiniband/hw/ocrdma/ ++F: include/uapi/rdma/ocrdma-abi.h ++ ++EMULEX/BROADCOM LPFC FC/FCOE SCSI DRIVER ++M: James Smart <james.smart@broadcom.com> ++M: Dick Kennedy <dick.kennedy@broadcom.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: http://www.broadcom.com ++F: drivers/scsi/lpfc/ ++ ++EMULEX/BROADCOM EFCT FC/FCOE SCSI TARGET DRIVER ++M: James Smart <james.smart@broadcom.com> ++M: Ram Vegesna <ram.vegesna@broadcom.com> ++L: linux-scsi@vger.kernel.org ++L: target-devel@vger.kernel.org ++S: Supported ++W: http://www.broadcom.com ++F: drivers/scsi/elx/ ++ ++ENE CB710 FLASH CARD READER DRIVER ++M: Michał Mirosław <mirq-linux@rere.qmqm.pl> ++S: Maintained ++F: drivers/misc/cb710/ ++F: drivers/mmc/host/cb710-mmc.* ++F: include/linux/cb710.h ++ ++ENE KB2426 (ENE0100/ENE020XX) INFRARED RECEIVER ++M: Maxim Levitsky <maximlevitsky@gmail.com> ++S: Maintained ++F: drivers/media/rc/ene_ir.* ++ ++EPAPR HYPERVISOR BYTE CHANNEL DEVICE DRIVER ++M: Laurentiu Tudor <laurentiu.tudor@nxp.com> ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/tty/ehv_bytechan.c ++ ++EPSON S1D13XXX FRAMEBUFFER DRIVER ++M: Kristoffer Ericson <kristoffer.ericson@gmail.com> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kristoffer/linux-hpc.git ++F: drivers/video/fbdev/s1d13xxxfb.c ++F: include/video/s1d13xxxfb.h ++ ++EROFS FILE SYSTEM ++M: Gao Xiang <xiang@kernel.org> ++M: Chao Yu <chao@kernel.org> ++L: linux-erofs@lists.ozlabs.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git ++F: Documentation/filesystems/erofs.rst ++F: fs/erofs/ ++F: include/trace/events/erofs.h ++ ++ERRSEQ ERROR TRACKING INFRASTRUCTURE ++M: Jeff Layton <jlayton@kernel.org> ++S: Maintained ++F: include/linux/errseq.h ++F: lib/errseq.c ++ ++ET131X NETWORK DRIVER ++M: Mark Einon <mark.einon@gmail.com> ++S: Odd Fixes ++F: drivers/net/ethernet/agere/ ++ ++ETAS ES58X CAN/USB DRIVER ++M: Vincent Mailhol <mailhol.vincent@wanadoo.fr> ++L: linux-can@vger.kernel.org ++S: Maintained ++F: drivers/net/can/usb/etas_es58x/ ++ ++ETHERNET BRIDGE ++M: Roopa Prabhu <roopa@nvidia.com> ++M: Nikolay Aleksandrov <nikolay@nvidia.com> ++L: bridge@lists.linux-foundation.org (moderated for non-subscribers) ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://www.linuxfoundation.org/en/Net:Bridge ++F: include/linux/netfilter_bridge/ ++F: net/bridge/ ++ ++ETHERNET PHY LIBRARY ++M: Andrew Lunn <andrew@lunn.ch> ++M: Heiner Kallweit <hkallweit1@gmail.com> ++R: Russell King <linux@armlinux.org.uk> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-class-net-phydev ++F: Documentation/devicetree/bindings/net/ethernet-phy.yaml ++F: Documentation/devicetree/bindings/net/mdio* ++F: Documentation/devicetree/bindings/net/qca,ar803x.yaml ++F: Documentation/networking/phy.rst ++F: drivers/net/mdio/ ++F: drivers/net/mdio/acpi_mdio.c ++F: drivers/net/mdio/fwnode_mdio.c ++F: drivers/net/mdio/of_mdio.c ++F: drivers/net/pcs/ ++F: drivers/net/phy/ ++F: drivers/of/of_net.c ++F: include/dt-bindings/net/qca-ar803x.h ++F: include/linux/*mdio*.h ++F: include/linux/mdio/*.h ++F: include/linux/of_net.h ++F: include/linux/phy.h ++F: include/linux/phy_fixed.h ++F: include/linux/platform_data/mdio-bcm-unimac.h ++F: include/linux/platform_data/mdio-gpio.h ++F: include/trace/events/mdio.h ++F: include/uapi/linux/mdio.h ++F: include/uapi/linux/mii.h ++ ++EXFAT FILE SYSTEM ++M: Namjae Jeon <linkinjeon@kernel.org> ++M: Sungjong Seo <sj1557.seo@samsung.com> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++F: fs/exfat/ ++ ++EXT2 FILE SYSTEM ++M: Jan Kara <jack@suse.com> ++L: linux-ext4@vger.kernel.org ++S: Maintained ++F: Documentation/filesystems/ext2.rst ++F: fs/ext2/ ++F: include/linux/ext2* ++ ++EXT4 FILE SYSTEM ++M: "Theodore Ts'o" <tytso@mit.edu> ++M: Andreas Dilger <adilger.kernel@dilger.ca> ++L: linux-ext4@vger.kernel.org ++S: Maintained ++W: http://ext4.wiki.kernel.org ++Q: http://patchwork.ozlabs.org/project/linux-ext4/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git ++F: Documentation/filesystems/ext4/ ++F: fs/ext4/ ++F: include/trace/events/ext4.h ++ ++Extended Verification Module (EVM) ++M: Mimi Zohar <zohar@linux.ibm.com> ++L: linux-integrity@vger.kernel.org ++S: Supported ++F: security/integrity/evm/ ++ ++EXTENSIBLE FIRMWARE INTERFACE (EFI) ++M: Ard Biesheuvel <ardb@kernel.org> ++L: linux-efi@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git ++F: Documentation/admin-guide/efi-stub.rst ++F: arch/*/include/asm/efi.h ++F: arch/*/kernel/efi.c ++F: arch/arm/boot/compressed/efi-header.S ++F: arch/arm64/kernel/efi-entry.S ++F: arch/x86/platform/efi/ ++F: drivers/firmware/efi/ ++F: include/linux/efi*.h ++ ++EXTERNAL CONNECTOR SUBSYSTEM (EXTCON) ++M: MyungJoo Ham <myungjoo.ham@samsung.com> ++M: Chanwoo Choi <cw00.choi@samsung.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git ++F: Documentation/devicetree/bindings/extcon/ ++F: Documentation/firmware-guide/acpi/extcon-intel-int3496.rst ++F: drivers/extcon/ ++F: include/linux/extcon.h ++F: include/linux/extcon/ ++ ++EXTRA BOOT CONFIG ++M: Masami Hiramatsu <mhiramat@kernel.org> ++S: Maintained ++F: Documentation/admin-guide/bootconfig.rst ++F: fs/proc/bootconfig.c ++F: include/linux/bootconfig.h ++F: lib/bootconfig.c ++F: tools/bootconfig/* ++F: tools/bootconfig/scripts/* ++ ++EXYNOS DP DRIVER ++M: Jingoo Han <jingoohan1@gmail.com> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++F: drivers/gpu/drm/exynos/exynos_dp* ++ ++EXYNOS SYSMMU (IOMMU) driver ++M: Marek Szyprowski <m.szyprowski@samsung.com> ++L: iommu@lists.linux-foundation.org ++S: Maintained ++F: drivers/iommu/exynos-iommu.c ++ ++F2FS FILE SYSTEM ++M: Jaegeuk Kim <jaegeuk@kernel.org> ++M: Chao Yu <chao@kernel.org> ++L: linux-f2fs-devel@lists.sourceforge.net ++S: Maintained ++W: https://f2fs.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git ++F: Documentation/ABI/testing/sysfs-fs-f2fs ++F: Documentation/filesystems/f2fs.rst ++F: fs/f2fs/ ++F: include/linux/f2fs_fs.h ++F: include/trace/events/f2fs.h ++F: include/uapi/linux/f2fs.h ++ ++F71805F HARDWARE MONITORING DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/f71805f.rst ++F: drivers/hwmon/f71805f.c ++ ++FADDR2LINE ++M: Josh Poimboeuf <jpoimboe@redhat.com> ++S: Maintained ++F: scripts/faddr2line ++ ++FAILOVER MODULE ++M: Sridhar Samudrala <sridhar.samudrala@intel.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/failover.rst ++F: include/net/failover.h ++F: net/core/failover.c ++ ++FANOTIFY ++M: Jan Kara <jack@suse.cz> ++R: Amir Goldstein <amir73il@gmail.com> ++R: Matthew Bobrowski <repnop@google.com> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++F: fs/notify/fanotify/ ++F: include/linux/fanotify.h ++F: include/uapi/linux/fanotify.h ++ ++FARSYNC SYNCHRONOUS DRIVER ++M: Kevin Curtis <kevin.curtis@farsite.co.uk> ++S: Supported ++W: http://www.farsite.co.uk/ ++F: drivers/net/wan/farsync.* ++ ++FAULT INJECTION SUPPORT ++M: Akinobu Mita <akinobu.mita@gmail.com> ++S: Supported ++F: Documentation/fault-injection/ ++F: lib/fault-inject.c ++ ++FBTFT Framebuffer drivers ++L: dri-devel@lists.freedesktop.org ++L: linux-fbdev@vger.kernel.org ++S: Orphan ++F: drivers/staging/fbtft/ ++ ++FC0011 TUNER DRIVER ++M: Michael Buesch <m@bues.ch> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/tuners/fc0011.c ++F: drivers/media/tuners/fc0011.h ++ ++FC2580 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/tuners/fc2580* ++ ++FCOE SUBSYSTEM (libfc, libfcoe, fcoe) ++M: Hannes Reinecke <hare@suse.de> ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: www.Open-FCoE.org ++F: drivers/scsi/fcoe/ ++F: drivers/scsi/libfc/ ++F: include/scsi/fc/ ++F: include/scsi/libfc.h ++F: include/scsi/libfcoe.h ++F: include/uapi/scsi/fc/ ++ ++FILE LOCKING (flock() and fcntl()/lockf()) ++M: Jeff Layton <jlayton@kernel.org> ++M: "J. Bruce Fields" <bfields@fieldses.org> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++F: fs/fcntl.c ++F: fs/locks.c ++F: include/linux/fcntl.h ++F: include/uapi/linux/fcntl.h ++ ++FILESYSTEM DIRECT ACCESS (DAX) ++M: Dan Williams <dan.j.williams@intel.com> ++R: Matthew Wilcox <willy@infradead.org> ++R: Jan Kara <jack@suse.cz> ++L: linux-fsdevel@vger.kernel.org ++L: nvdimm@lists.linux.dev ++S: Supported ++F: fs/dax.c ++F: include/linux/dax.h ++F: include/trace/events/fs_dax.h ++ ++FILESYSTEMS (VFS and infrastructure) ++M: Alexander Viro <viro@zeniv.linux.org.uk> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++F: fs/* ++F: include/linux/fs.h ++F: include/linux/fs_types.h ++F: include/uapi/linux/fs.h ++F: include/uapi/linux/openat2.h ++X: fs/io-wq.c ++X: fs/io-wq.h ++X: fs/io_uring.c ++ ++FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER ++M: Riku Voipio <riku.voipio@iki.fi> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: drivers/hwmon/f75375s.c ++F: include/linux/f75375s.h ++ ++FIREWIRE AUDIO DRIVERS and IEC 61883-1/6 PACKET STREAMING ENGINE ++M: Clemens Ladisch <clemens@ladisch.de> ++M: Takashi Sakamoto <o-takashi@sakamocchi.jp> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git ++F: include/uapi/sound/firewire.h ++F: sound/firewire/ ++ ++FIREWIRE MEDIA DRIVERS (firedtv) ++M: Stefan Richter <stefanr@s5r6.in-berlin.de> ++L: linux-media@vger.kernel.org ++L: linux1394-devel@lists.sourceforge.net ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git ++F: drivers/media/firewire/ ++ ++FIREWIRE SBP-2 TARGET ++M: Chris Boot <bootc@bootc.net> ++L: linux-scsi@vger.kernel.org ++L: target-devel@vger.kernel.org ++L: linux1394-devel@lists.sourceforge.net ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/lio-core-2.6.git master ++F: drivers/target/sbp/ ++ ++FIREWIRE SUBSYSTEM ++M: Stefan Richter <stefanr@s5r6.in-berlin.de> ++L: linux1394-devel@lists.sourceforge.net ++S: Maintained ++W: http://ieee1394.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394.git ++F: drivers/firewire/ ++F: include/linux/firewire.h ++F: include/uapi/linux/firewire*.h ++F: tools/firewire/ ++ ++FIRMWARE FRAMEWORK FOR ARMV8-A ++M: Sudeep Holla <sudeep.holla@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/firmware/arm_ffa/ ++F: include/linux/arm_ffa.h ++ ++FIRMWARE LOADER (request_firmware) ++M: Luis Chamberlain <mcgrof@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/firmware_class/ ++F: drivers/base/firmware_loader/ ++F: include/linux/firmware.h ++ ++FLASH ADAPTER DRIVER (IBM Flash Adapter 900GB Full Height PCI Flash Card) ++M: Joshua Morris <josh.h.morris@us.ibm.com> ++M: Philip Kelleher <pjk1939@linux.ibm.com> ++S: Maintained ++F: drivers/block/rsxx/ ++ ++FLEXTIMER FTM-QUADDEC DRIVER ++M: Patrick Havelange <patrick.havelange@essensium.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/counter/ftm-quaddec.txt ++F: drivers/counter/ftm-quaddec.c ++ ++FLOPPY DRIVER ++M: Denis Efremov <efremov@linux.com> ++L: linux-block@vger.kernel.org ++S: Odd Fixes ++F: drivers/block/floppy.c ++ ++FLYSKY FSIA6B RC RECEIVER ++M: Markus Koch <markus@notsyncing.net> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/input/joystick/fsia6b.c ++ ++FOCUSRITE SCARLETT GEN 2/3 MIXER DRIVER ++M: Geoffrey D. Bennett <g@b4.vu> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git ++F: sound/usb/mixer_scarlett_gen2.c ++ ++FORCEDETH GIGABIT ETHERNET DRIVER ++M: Rain River <rain.1986.08.12@gmail.com> ++M: Zhu Yanjun <zyjzyj2000@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/nvidia/* ++ ++FPGA DFL DRIVERS ++M: Wu Hao <hao.wu@intel.com> ++R: Tom Rix <trix@redhat.com> ++L: linux-fpga@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-bus-dfl* ++F: Documentation/fpga/dfl.rst ++F: drivers/fpga/dfl* ++F: drivers/uio/uio_dfl.c ++F: include/linux/dfl.h ++F: include/uapi/linux/fpga-dfl.h ++ ++FPGA MANAGER FRAMEWORK ++M: Moritz Fischer <mdf@kernel.org> ++M: Wu Hao <hao.wu@intel.com> ++M: Xu Yilun <yilun.xu@intel.com> ++R: Tom Rix <trix@redhat.com> ++L: linux-fpga@vger.kernel.org ++S: Maintained ++Q: http://patchwork.kernel.org/project/linux-fpga/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga.git ++F: Documentation/devicetree/bindings/fpga/ ++F: Documentation/driver-api/fpga/ ++F: Documentation/fpga/ ++F: drivers/fpga/ ++F: include/linux/fpga/ ++ ++FPU EMULATOR ++M: Bill Metzenthen <billm@melbpc.org.au> ++S: Maintained ++W: http://floatingpoint.sourceforge.net/emulator/index.html ++F: arch/x86/math-emu/ ++ ++FRAMEBUFFER LAYER ++L: dri-devel@lists.freedesktop.org ++L: linux-fbdev@vger.kernel.org ++S: Orphan ++Q: http://patchwork.kernel.org/project/linux-fbdev/list/ ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/fb/ ++F: drivers/video/ ++F: include/linux/fb.h ++F: include/uapi/linux/fb.h ++F: include/uapi/video/ ++F: include/video/ ++ ++FREESCALE CAAM (Cryptographic Acceleration and Assurance Module) DRIVER ++M: Horia Geantă <horia.geanta@nxp.com> ++M: Pankaj Gupta <pankaj.gupta@nxp.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/crypto/fsl-sec4.txt ++F: drivers/crypto/caam/ ++ ++FREESCALE COLDFIRE M5441X MMC DRIVER ++M: Angelo Dureghello <angelo.dureghello@timesys.com> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++F: drivers/mmc/host/sdhci-esdhc-mcf.c ++F: include/linux/platform_data/mmc-esdhc-mcf.h ++ ++FREESCALE DIU FRAMEBUFFER DRIVER ++M: Timur Tabi <timur@kernel.org> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/fsl-diu-fb.* ++ ++FREESCALE DMA DRIVER ++M: Li Yang <leoyang.li@nxp.com> ++M: Zhang Wei <zw@zh-kernel.org> ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/dma/fsldma.* ++ ++FREESCALE DSPI DRIVER ++M: Vladimir Oltean <olteanv@gmail.com> ++L: linux-spi@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt ++F: drivers/spi/spi-fsl-dspi.c ++F: include/linux/spi/spi-fsl-dspi.h ++ ++FREESCALE ENETC ETHERNET DRIVERS ++M: Claudiu Manoil <claudiu.manoil@nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/freescale/enetc/ ++ ++FREESCALE eTSEC ETHERNET DRIVER (GIANFAR) ++M: Claudiu Manoil <claudiu.manoil@nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/fsl-tsec-phy.txt ++F: drivers/net/ethernet/freescale/gianfar* ++ ++FREESCALE GPMI NAND DRIVER ++M: Han Xu <han.xu@nxp.com> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++F: drivers/mtd/nand/raw/gpmi-nand/* ++ ++FREESCALE I2C CPM DRIVER ++M: Jochen Friedrich <jochen@scram.de> ++L: linuxppc-dev@lists.ozlabs.org ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: drivers/i2c/busses/i2c-cpm.c ++ ++FREESCALE IMX / MXC FEC DRIVER ++M: Joakim Zhang <qiangqing.zhang@nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/fsl,fec.yaml ++F: drivers/net/ethernet/freescale/fec.h ++F: drivers/net/ethernet/freescale/fec_main.c ++F: drivers/net/ethernet/freescale/fec_ptp.c ++ ++FREESCALE IMX / MXC FRAMEBUFFER DRIVER ++M: Sascha Hauer <s.hauer@pengutronix.de> ++R: Pengutronix Kernel Team <kernel@pengutronix.de> ++L: linux-fbdev@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/video/fbdev/imxfb.c ++F: include/linux/platform_data/video-imxfb.h ++ ++FREESCALE IMX DDR PMU DRIVER ++M: Frank Li <Frank.li@nxp.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/admin-guide/perf/imx-ddr.rst ++F: Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml ++F: drivers/perf/fsl_imx8_ddr_perf.c ++ ++FREESCALE IMX I2C DRIVER ++M: Oleksij Rempel <o.rempel@pengutronix.de> ++R: Pengutronix Kernel Team <kernel@pengutronix.de> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-imx.yaml ++F: drivers/i2c/busses/i2c-imx.c ++ ++FREESCALE IMX LPI2C DRIVER ++M: Dong Aisheng <aisheng.dong@nxp.com> ++L: linux-i2c@vger.kernel.org ++L: linux-imx@nxp.com ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml ++F: drivers/i2c/busses/i2c-imx-lpi2c.c ++ ++FREESCALE MPC I2C DRIVER ++M: Chris Packham <chris.packham@alliedtelesis.co.nz> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-mpc.yaml ++F: drivers/i2c/busses/i2c-mpc.c ++ ++FREESCALE QORIQ DPAA ETHERNET DRIVER ++M: Madalin Bucur <madalin.bucur@nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/freescale/dpaa ++ ++FREESCALE QORIQ DPAA FMAN DRIVER ++M: Madalin Bucur <madalin.bucur@nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/fsl-fman.txt ++F: drivers/net/ethernet/freescale/fman ++ ++FREESCALE QORIQ PTP CLOCK DRIVER ++M: Yangbo Lu <yangbo.lu@nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/ptp/ptp-qoriq.txt ++F: drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp* ++F: drivers/net/ethernet/freescale/dpaa2/dprtc* ++F: drivers/net/ethernet/freescale/enetc/enetc_ptp.c ++F: drivers/ptp/ptp_qoriq.c ++F: drivers/ptp/ptp_qoriq_debugfs.c ++F: include/linux/fsl/ptp_qoriq.h ++ ++FREESCALE QUAD SPI DRIVER ++M: Han Xu <han.xu@nxp.com> ++L: linux-spi@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/spi/fsl,spi-fsl-qspi.yaml ++F: drivers/spi/spi-fsl-qspi.c ++ ++FREESCALE QUICC ENGINE LIBRARY ++M: Qiang Zhao <qiang.zhao@nxp.com> ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/soc/fsl/qe/ ++F: include/soc/fsl/*qe*.h ++F: include/soc/fsl/*ucc*.h ++ ++FREESCALE QUICC ENGINE UCC ETHERNET DRIVER ++M: Li Yang <leoyang.li@nxp.com> ++L: netdev@vger.kernel.org ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/net/ethernet/freescale/ucc_geth* ++ ++FREESCALE QUICC ENGINE UCC HDLC DRIVER ++M: Zhao Qiang <qiang.zhao@nxp.com> ++L: netdev@vger.kernel.org ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/net/wan/fsl_ucc_hdlc* ++ ++FREESCALE QUICC ENGINE UCC UART DRIVER ++M: Timur Tabi <timur@kernel.org> ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/tty/serial/ucc_uart.c ++ ++FREESCALE SOC DRIVERS ++M: Li Yang <leoyang.li@nxp.com> ++L: linuxppc-dev@lists.ozlabs.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml ++F: Documentation/devicetree/bindings/soc/fsl/ ++F: drivers/soc/fsl/ ++F: include/linux/fsl/ ++ ++FREESCALE SOC FS_ENET DRIVER ++M: Pantelis Antoniou <pantelis.antoniou@gmail.com> ++L: linuxppc-dev@lists.ozlabs.org ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/freescale/fs_enet/ ++F: include/linux/fs_enet_pd.h ++ ++FREESCALE SOC SOUND DRIVERS ++M: Nicolin Chen <nicoleotsuka@gmail.com> ++M: Xiubo Li <Xiubo.Lee@gmail.com> ++R: Fabio Estevam <festevam@gmail.com> ++R: Shengjiu Wang <shengjiu.wang@gmail.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: sound/soc/fsl/fsl* ++F: sound/soc/fsl/imx* ++F: sound/soc/fsl/mpc8610_hpcd.c ++ ++FREESCALE USB PERIPHERAL DRIVERS ++M: Li Yang <leoyang.li@nxp.com> ++L: linux-usb@vger.kernel.org ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/usb/gadget/udc/fsl* ++ ++FREESCALE USB PHY DRIVER ++M: Ran Wang <ran.wang_1@nxp.com> ++L: linux-usb@vger.kernel.org ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/usb/phy/phy-fsl-usb* ++ ++FREEVXFS FILESYSTEM ++M: Christoph Hellwig <hch@infradead.org> ++S: Maintained ++W: ftp://ftp.openlinux.org/pub/people/hch/vxfs ++F: fs/freevxfs/ ++ ++FREEZER ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++M: Pavel Machek <pavel@ucw.cz> ++L: linux-pm@vger.kernel.org ++S: Supported ++F: Documentation/power/freezing-of-tasks.rst ++F: include/linux/freezer.h ++F: kernel/freezer.c ++ ++FRONTSWAP API ++M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: include/linux/frontswap.h ++F: mm/frontswap.c ++ ++FS-CACHE: LOCAL CACHING FOR NETWORK FILESYSTEMS ++M: David Howells <dhowells@redhat.com> ++L: linux-cachefs@redhat.com (moderated for non-subscribers) ++S: Supported ++F: Documentation/filesystems/caching/ ++F: fs/fscache/ ++F: include/linux/fscache*.h ++ ++FSCRYPT: FILE SYSTEM LEVEL ENCRYPTION SUPPORT ++M: Theodore Y. Ts'o <tytso@mit.edu> ++M: Jaegeuk Kim <jaegeuk@kernel.org> ++M: Eric Biggers <ebiggers@kernel.org> ++L: linux-fscrypt@vger.kernel.org ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-fscrypt/list/ ++T: git git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git ++F: Documentation/filesystems/fscrypt.rst ++F: fs/crypto/ ++F: include/linux/fscrypt*.h ++F: include/uapi/linux/fscrypt.h ++ ++FSI SUBSYSTEM ++M: Jeremy Kerr <jk@ozlabs.org> ++M: Joel Stanley <joel@jms.id.au> ++R: Alistar Popple <alistair@popple.id.au> ++R: Eddie James <eajames@linux.ibm.com> ++L: linux-fsi@lists.ozlabs.org ++S: Supported ++Q: http://patchwork.ozlabs.org/project/linux-fsi/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi.git ++F: drivers/fsi/ ++F: include/linux/fsi*.h ++F: include/trace/events/fsi*.h ++ ++FSI-ATTACHED I2C DRIVER ++M: Eddie James <eajames@linux.ibm.com> ++L: linux-i2c@vger.kernel.org ++L: openbmc@lists.ozlabs.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-fsi.txt ++F: drivers/i2c/busses/i2c-fsi.c ++ ++FSI-ATTACHED SPI DRIVER ++M: Eddie James <eajames@linux.ibm.com> ++L: linux-spi@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml ++F: drivers/spi/spi-fsi.c ++ ++FSNOTIFY: FILESYSTEM NOTIFICATION INFRASTRUCTURE ++M: Jan Kara <jack@suse.cz> ++R: Amir Goldstein <amir73il@gmail.com> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git fsnotify ++F: fs/notify/ ++F: include/linux/fsnotify*.h ++ ++FSVERITY: READ-ONLY FILE-BASED AUTHENTICITY PROTECTION ++M: Eric Biggers <ebiggers@kernel.org> ++M: Theodore Y. Ts'o <tytso@mit.edu> ++L: linux-fscrypt@vger.kernel.org ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-fscrypt/list/ ++T: git git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git fsverity ++F: Documentation/filesystems/fsverity.rst ++F: fs/verity/ ++F: include/linux/fsverity.h ++F: include/uapi/linux/fsverity.h ++ ++FT260 FTDI USB-HID TO I2C BRIDGE DRIVER ++M: Michael Zaidman <michael.zaidman@gmail.com> ++L: linux-i2c@vger.kernel.org ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/hid/hid-ft260.c ++ ++FUJITSU LAPTOP EXTRAS ++M: Jonathan Woithe <jwoithe@just42.net> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/fujitsu-laptop.c ++ ++FUJITSU M-5MO LS CAMERA ISP DRIVER ++M: Kyungmin Park <kyungmin.park@samsung.com> ++M: Heungjun Kim <riverful.kim@samsung.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/m5mols/ ++F: include/media/i2c/m5mols.h ++ ++FUJITSU TABLET EXTRAS ++M: Robert Gerlach <khnz@gmx.de> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/fujitsu-tablet.c ++ ++FUSE: FILESYSTEM IN USERSPACE ++M: Miklos Szeredi <miklos@szeredi.hu> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++W: https://github.com/libfuse/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git ++F: Documentation/filesystems/fuse.rst ++F: fs/fuse/ ++F: include/uapi/linux/fuse.h ++ ++FUTEX SUBSYSTEM ++M: Thomas Gleixner <tglx@linutronix.de> ++M: Ingo Molnar <mingo@redhat.com> ++R: Peter Zijlstra <peterz@infradead.org> ++R: Darren Hart <dvhart@infradead.org> ++R: Davidlohr Bueso <dave@stgolabs.net> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core ++F: Documentation/locking/*futex* ++F: include/asm-generic/futex.h ++F: include/linux/futex.h ++F: include/uapi/linux/futex.h ++F: kernel/futex.c ++F: tools/perf/bench/futex* ++F: tools/testing/selftests/futex/ ++ ++GATEWORKS SYSTEM CONTROLLER (GSC) DRIVER ++M: Tim Harvey <tharvey@gateworks.com> ++M: Robert Jones <rjones@gateworks.com> ++S: Maintained ++F: Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml ++F: drivers/mfd/gateworks-gsc.c ++F: include/linux/mfd/gsc.h ++F: Documentation/hwmon/gsc-hwmon.rst ++F: drivers/hwmon/gsc-hwmon.c ++F: include/linux/platform_data/gsc_hwmon.h ++ ++GCC PLUGINS ++M: Kees Cook <keescook@chromium.org> ++L: linux-hardening@vger.kernel.org ++S: Maintained ++F: Documentation/kbuild/gcc-plugins.rst ++F: scripts/Makefile.gcc-plugins ++F: scripts/gcc-plugins/ ++ ++GCOV BASED KERNEL PROFILING ++M: Peter Oberparleiter <oberpar@linux.ibm.com> ++S: Maintained ++F: Documentation/dev-tools/gcov.rst ++F: kernel/gcov/ ++ ++GDB KERNEL DEBUGGING HELPER SCRIPTS ++M: Jan Kiszka <jan.kiszka@siemens.com> ++M: Kieran Bingham <kbingham@kernel.org> ++S: Supported ++F: scripts/gdb/ ++ ++GEMINI CRYPTO DRIVER ++M: Corentin Labbe <clabbe@baylibre.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: drivers/crypto/gemini/ ++ ++GEMTEK FM RADIO RECEIVER DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-gemtek* ++ ++GENERIC ARCHITECTURE TOPOLOGY ++M: Sudeep Holla <sudeep.holla@arm.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/base/arch_topology.c ++F: include/linux/arch_topology.h ++ ++GENERIC ENTRY CODE ++M: Thomas Gleixner <tglx@linutronix.de> ++M: Peter Zijlstra <peterz@infradead.org> ++M: Andy Lutomirski <luto@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core/entry ++F: include/linux/entry-common.h ++F: include/linux/entry-kvm.h ++F: kernel/entry/ ++ ++GENERIC GPIO I2C DRIVER ++M: Wolfram Sang <wsa+renesas@sang-engineering.com> ++S: Supported ++F: drivers/i2c/busses/i2c-gpio.c ++F: include/linux/platform_data/i2c-gpio.h ++ ++GENERIC GPIO I2C MULTIPLEXER DRIVER ++M: Peter Korsgaard <peter.korsgaard@barco.com> ++L: linux-i2c@vger.kernel.org ++S: Supported ++F: Documentation/i2c/muxes/i2c-mux-gpio.rst ++F: drivers/i2c/muxes/i2c-mux-gpio.c ++F: include/linux/platform_data/i2c-mux-gpio.h ++ ++GENERIC HDLC (WAN) DRIVERS ++M: Krzysztof Halasa <khc@pm.waw.pl> ++S: Maintained ++W: http://www.kernel.org/pub/linux/utils/net/hdlc/ ++F: drivers/net/wan/c101.c ++F: drivers/net/wan/hd6457* ++F: drivers/net/wan/hdlc* ++F: drivers/net/wan/n2.c ++F: drivers/net/wan/pc300too.c ++F: drivers/net/wan/pci200syn.c ++F: drivers/net/wan/wanxl* ++ ++GENERIC INCLUDE/ASM HEADER FILES ++M: Arnd Bergmann <arnd@arndb.de> ++L: linux-arch@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git ++F: include/asm-generic/ ++F: include/uapi/asm-generic/ ++ ++GENERIC PHY FRAMEWORK ++M: Kishon Vijay Abraham I <kishon@ti.com> ++M: Vinod Koul <vkoul@kernel.org> ++L: linux-phy@lists.infradead.org ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-phy/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git ++F: Documentation/devicetree/bindings/phy/ ++F: drivers/phy/ ++F: include/linux/phy/ ++ ++GENERIC PINCTRL I2C DEMULTIPLEXER DRIVER ++M: Wolfram Sang <wsa+renesas@sang-engineering.com> ++S: Supported ++F: drivers/i2c/muxes/i2c-demux-pinctrl.c ++ ++GENERIC PM DOMAINS ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++M: Kevin Hilman <khilman@kernel.org> ++M: Ulf Hansson <ulf.hansson@linaro.org> ++L: linux-pm@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/power/power?domain* ++F: drivers/base/power/domain*.c ++F: include/linux/pm_domain.h ++ ++GENERIC RESISTIVE TOUCHSCREEN ADC DRIVER ++M: Eugen Hristev <eugen.hristev@microchip.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/input/touchscreen/resistive-adc-touch.c ++ ++GENERIC STRING LIBRARY ++R: Andy Shevchenko <andy@kernel.org> ++S: Maintained ++F: lib/string.c ++F: lib/string_helpers.c ++F: lib/test_string.c ++F: lib/test-string_helpers.c ++ ++GENERIC UIO DRIVER FOR PCI DEVICES ++M: "Michael S. Tsirkin" <mst@redhat.com> ++L: kvm@vger.kernel.org ++S: Supported ++F: drivers/uio/uio_pci_generic.c ++ ++GENERIC VDSO LIBRARY ++M: Andy Lutomirski <luto@kernel.org> ++M: Thomas Gleixner <tglx@linutronix.de> ++M: Vincenzo Frascino <vincenzo.frascino@arm.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/vdso ++F: include/asm-generic/vdso/vsyscall.h ++F: include/vdso/ ++F: kernel/time/vsyscall.c ++F: lib/vdso/ ++ ++GENWQE (IBM Generic Workqueue Card) ++M: Frank Haverkamp <haver@linux.ibm.com> ++S: Supported ++F: drivers/misc/genwqe/ ++ ++GET_MAINTAINER SCRIPT ++M: Joe Perches <joe@perches.com> ++S: Maintained ++F: scripts/get_maintainer.pl ++ ++GFS2 FILE SYSTEM ++M: Bob Peterson <rpeterso@redhat.com> ++M: Andreas Gruenbacher <agruenba@redhat.com> ++L: cluster-devel@redhat.com ++S: Supported ++B: https://bugzilla.kernel.org/enter_bug.cgi?product=File%20System&component=gfs2 ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git ++F: Documentation/filesystems/gfs2* ++F: fs/gfs2/ ++F: include/uapi/linux/gfs2_ondisk.h ++ ++GIGABYTE WMI DRIVER ++M: Thomas Weißschuh <thomas@weissschuh.net> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/gigabyte-wmi.c ++ ++GNSS SUBSYSTEM ++M: Johan Hovold <johan@kernel.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss.git ++F: Documentation/ABI/testing/sysfs-class-gnss ++F: Documentation/devicetree/bindings/gnss/ ++F: drivers/gnss/ ++F: include/linux/gnss.h ++ ++GO7007 MPEG CODEC ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/usb/go7007/ ++ ++GOODIX TOUCHSCREEN ++M: Bastien Nocera <hadess@hadess.net> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/input/touchscreen/goodix.c ++ ++GOOGLE ETHERNET DRIVERS ++M: Jeroen de Borst <jeroendb@google.com> ++R: Catherine Sullivan <csully@google.com> ++R: David Awogbemila <awogbemila@google.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/device_drivers/ethernet/google/gve.rst ++F: drivers/net/ethernet/google ++ ++GPD POCKET FAN DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/gpd-pocket-fan.c ++ ++GPIO ACPI SUPPORT ++M: Mika Westerberg <mika.westerberg@linux.intel.com> ++M: Andy Shevchenko <andriy.shevchenko@linux.intel.com> ++L: linux-gpio@vger.kernel.org ++L: linux-acpi@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git ++F: Documentation/firmware-guide/acpi/gpio-properties.rst ++F: drivers/gpio/gpiolib-acpi.c ++F: drivers/gpio/gpiolib-acpi.h ++ ++GPIO AGGREGATOR ++M: Geert Uytterhoeven <geert+renesas@glider.be> ++L: linux-gpio@vger.kernel.org ++S: Supported ++F: Documentation/admin-guide/gpio/gpio-aggregator.rst ++F: drivers/gpio/gpio-aggregator.c ++ ++GPIO IR Transmitter ++M: Sean Young <sean@mess.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/rc/gpio-ir-tx.c ++ ++GPIO MOCKUP DRIVER ++M: Bamvor Jian Zhang <bamv2005@gmail.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-mockup.c ++F: tools/testing/selftests/gpio/ ++ ++GPIO REGMAP ++R: Michael Walle <michael@walle.cc> ++S: Maintained ++F: drivers/gpio/gpio-regmap.c ++F: include/linux/gpio/regmap.h ++ ++GPIO SUBSYSTEM ++M: Linus Walleij <linus.walleij@linaro.org> ++M: Bartosz Golaszewski <brgl@bgdev.pl> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git ++F: Documentation/ABI/obsolete/sysfs-gpio ++F: Documentation/ABI/testing/gpio-cdev ++F: Documentation/admin-guide/gpio/ ++F: Documentation/devicetree/bindings/gpio/ ++F: Documentation/driver-api/gpio/ ++F: drivers/gpio/ ++F: include/asm-generic/gpio.h ++F: include/linux/gpio.h ++F: include/linux/gpio/ ++F: include/linux/of_gpio.h ++F: include/uapi/linux/gpio.h ++F: tools/gpio/ ++ ++GRE DEMULTIPLEXER DRIVER ++M: Dmitry Kozlov <xeb@mail.ru> ++L: netdev@vger.kernel.org ++S: Maintained ++F: include/net/gre.h ++F: net/ipv4/gre_demux.c ++F: net/ipv4/gre_offload.c ++ ++GRETH 10/100/1G Ethernet MAC device driver ++M: Andreas Larsson <andreas@gaisler.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/aeroflex/ ++ ++GREYBUS AUDIO PROTOCOLS DRIVERS ++M: Vaibhav Agarwal <vaibhav.sr@gmail.com> ++M: Mark Greer <mgreer@animalcreek.com> ++S: Maintained ++F: drivers/staging/greybus/audio_apbridgea.c ++F: drivers/staging/greybus/audio_apbridgea.h ++F: drivers/staging/greybus/audio_codec.c ++F: drivers/staging/greybus/audio_codec.h ++F: drivers/staging/greybus/audio_gb.c ++F: drivers/staging/greybus/audio_manager.c ++F: drivers/staging/greybus/audio_manager.h ++F: drivers/staging/greybus/audio_manager_module.c ++F: drivers/staging/greybus/audio_manager_private.h ++F: drivers/staging/greybus/audio_manager_sysfs.c ++F: drivers/staging/greybus/audio_module.c ++F: drivers/staging/greybus/audio_topology.c ++ ++GREYBUS FW/HID/SPI PROTOCOLS DRIVERS ++M: Viresh Kumar <vireshk@kernel.org> ++S: Maintained ++F: drivers/staging/greybus/authentication.c ++F: drivers/staging/greybus/bootrom.c ++F: drivers/staging/greybus/firmware.h ++F: drivers/staging/greybus/fw-core.c ++F: drivers/staging/greybus/fw-download.c ++F: drivers/staging/greybus/fw-management.c ++F: drivers/staging/greybus/greybus_authentication.h ++F: drivers/staging/greybus/greybus_firmware.h ++F: drivers/staging/greybus/hid.c ++F: drivers/staging/greybus/i2c.c ++F: drivers/staging/greybus/spi.c ++F: drivers/staging/greybus/spilib.c ++F: drivers/staging/greybus/spilib.h ++ ++GREYBUS LOOPBACK DRIVER ++M: Bryan O'Donoghue <pure.logic@nexus-software.ie> ++S: Maintained ++F: drivers/staging/greybus/loopback.c ++ ++GREYBUS PLATFORM DRIVERS ++M: Vaibhav Hiremath <hvaibhav.linux@gmail.com> ++S: Maintained ++F: drivers/staging/greybus/arche-apb-ctrl.c ++F: drivers/staging/greybus/arche-platform.c ++F: drivers/staging/greybus/arche_platform.h ++ ++GREYBUS SDIO/GPIO/SPI PROTOCOLS DRIVERS ++M: Rui Miguel Silva <rmfrfs@gmail.com> ++S: Maintained ++F: drivers/staging/greybus/gpio.c ++F: drivers/staging/greybus/light.c ++F: drivers/staging/greybus/power_supply.c ++F: drivers/staging/greybus/sdio.c ++F: drivers/staging/greybus/spi.c ++F: drivers/staging/greybus/spilib.c ++ ++GREYBUS SUBSYSTEM ++M: Johan Hovold <johan@kernel.org> ++M: Alex Elder <elder@kernel.org> ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++L: greybus-dev@lists.linaro.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/greybus/ ++F: drivers/staging/greybus/ ++F: include/linux/greybus.h ++F: include/linux/greybus/ ++ ++GREYBUS UART PROTOCOLS DRIVERS ++M: David Lin <dtwlin@gmail.com> ++S: Maintained ++F: drivers/staging/greybus/log.c ++F: drivers/staging/greybus/uart.c ++ ++GS1662 VIDEO SERIALIZER ++M: Charles-Antoine Couret <charles-antoine.couret@nexvision.fr> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/spi/gs1662.c ++ ++GSPCA FINEPIX SUBDRIVER ++M: Frank Zago <frank@zago.net> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/gspca/finepix.c ++ ++GSPCA GL860 SUBDRIVER ++M: Olivier Lorin <o.lorin@laposte.net> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/gspca/gl860/ ++ ++GSPCA M5602 SUBDRIVER ++M: Erik Andren <erik.andren@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/gspca/m5602/ ++ ++GSPCA PAC207 SONIXB SUBDRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/gspca/pac207.c ++ ++GSPCA SN9C20X SUBDRIVER ++M: Brian Johnson <brijohn@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/gspca/sn9c20x.c ++ ++GSPCA T613 SUBDRIVER ++M: Leandro Costantino <lcostantino@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/gspca/t613.c ++ ++GSPCA USB WEBCAM DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/gspca/ ++ ++GTP (GPRS Tunneling Protocol) ++M: Pablo Neira Ayuso <pablo@netfilter.org> ++M: Harald Welte <laforge@gnumonks.org> ++L: osmocom-net-gprs@lists.osmocom.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pablo/gtp.git ++F: drivers/net/gtp.c ++ ++GUID PARTITION TABLE (GPT) ++M: Davidlohr Bueso <dave@stgolabs.net> ++L: linux-efi@vger.kernel.org ++S: Maintained ++F: block/partitions/efi.* ++ ++H8/300 ARCHITECTURE ++M: Yoshinori Sato <ysato@users.sourceforge.jp> ++L: uclinux-h8-devel@lists.sourceforge.jp (moderated for non-subscribers) ++S: Maintained ++W: http://uclinux-h8.sourceforge.jp ++T: git git://git.sourceforge.jp/gitroot/uclinux-h8/linux.git ++F: arch/h8300/ ++F: drivers/clk/h8300/ ++F: drivers/clocksource/h8300_*.c ++F: drivers/irqchip/irq-renesas-h8*.c ++ ++HABANALABS PCI DRIVER ++M: Oded Gabbay <ogabbay@kernel.org> ++S: Supported ++T: git https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git ++F: Documentation/ABI/testing/debugfs-driver-habanalabs ++F: Documentation/ABI/testing/sysfs-driver-habanalabs ++F: drivers/misc/habanalabs/ ++F: include/uapi/misc/habanalabs.h ++ ++HACKRF MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/hackrf/ ++ ++HANTRO VPU CODEC DRIVER ++M: Ezequiel Garcia <ezequiel@collabora.com> ++M: Philipp Zabel <p.zabel@pengutronix.de> ++L: linux-media@vger.kernel.org ++L: linux-rockchip@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml ++F: Documentation/devicetree/bindings/media/rockchip-vpu.yaml ++F: drivers/staging/media/hantro/ ++ ++HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER ++M: Frank Seidel <frank@f-seidel.de> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++W: http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/ ++F: drivers/platform/x86/hdaps.c ++ ++HARDWARE MONITORING ++M: Jean Delvare <jdelvare@suse.com> ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++W: http://hwmon.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git ++F: Documentation/devicetree/bindings/hwmon/ ++F: Documentation/hwmon/ ++F: drivers/hwmon/ ++F: include/linux/hwmon*.h ++F: include/trace/events/hwmon*.h ++K: (devm_)?hwmon_device_(un)?register(|_with_groups|_with_info) ++ ++HARDWARE RANDOM NUMBER GENERATOR CORE ++M: Matt Mackall <mpm@selenic.com> ++M: Herbert Xu <herbert@gondor.apana.org.au> ++L: linux-crypto@vger.kernel.org ++S: Odd fixes ++F: Documentation/admin-guide/hw_random.rst ++F: Documentation/devicetree/bindings/rng/ ++F: drivers/char/hw_random/ ++F: include/linux/hw_random.h ++ ++HARDWARE SPINLOCK CORE ++M: Ohad Ben-Cohen <ohad@wizery.com> ++M: Bjorn Andersson <bjorn.andersson@linaro.org> ++R: Baolin Wang <baolin.wang7@gmail.com> ++L: linux-remoteproc@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc.git hwspinlock-next ++F: Documentation/devicetree/bindings/hwlock/ ++F: Documentation/locking/hwspinlock.rst ++F: drivers/hwspinlock/ ++F: include/linux/hwspinlock.h ++ ++HARDWARE TRACING FACILITIES ++M: Alexander Shishkin <alexander.shishkin@linux.intel.com> ++S: Maintained ++F: drivers/hwtracing/ ++ ++HARMONY SOUND DRIVER ++L: linux-parisc@vger.kernel.org ++S: Maintained ++F: sound/parisc/harmony.* ++ ++HDPVR USB VIDEO ENCODER DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/hdpvr/ ++ ++HEWLETT PACKARD ENTERPRISE ILO CHIF DRIVER ++M: Matt Hsiao <matt.hsiao@hpe.com> ++S: Supported ++F: drivers/misc/hpilo.[ch] ++ ++HEWLETT PACKARD ENTERPRISE ILO NMI WATCHDOG DRIVER ++M: Jerry Hoemann <jerry.hoemann@hpe.com> ++S: Supported ++F: Documentation/watchdog/hpwdt.rst ++F: drivers/watchdog/hpwdt.c ++ ++HEWLETT-PACKARD SMART ARRAY RAID DRIVER (hpsa) ++M: Don Brace <don.brace@microchip.com> ++L: storagedev@microchip.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: Documentation/scsi/hpsa.rst ++F: drivers/scsi/hpsa*.[ch] ++F: include/linux/cciss*.h ++F: include/uapi/linux/cciss*.h ++ ++HFI1 DRIVER ++M: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com> ++M: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++F: drivers/infiniband/hw/hfi1 ++ ++HFS FILESYSTEM ++L: linux-fsdevel@vger.kernel.org ++S: Orphan ++F: Documentation/filesystems/hfs.rst ++F: fs/hfs/ ++ ++HFSPLUS FILESYSTEM ++L: linux-fsdevel@vger.kernel.org ++S: Orphan ++F: Documentation/filesystems/hfsplus.rst ++F: fs/hfsplus/ ++ ++HGA FRAMEBUFFER DRIVER ++M: Ferenc Bakonyi <fero@drama.obuda.kando.hu> ++L: linux-nvidia@lists.surfsouth.com ++S: Maintained ++W: http://drama.obuda.kando.hu/~fero/cgi-bin/hgafb.shtml ++F: drivers/video/fbdev/hgafb.c ++ ++HIBERNATION (aka Software Suspend, aka swsusp) ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++M: Pavel Machek <pavel@ucw.cz> ++L: linux-pm@vger.kernel.org ++S: Supported ++B: https://bugzilla.kernel.org ++F: arch/*/include/asm/suspend*.h ++F: arch/x86/power/ ++F: drivers/base/power/ ++F: include/linux/freezer.h ++F: include/linux/pm.h ++F: include/linux/suspend.h ++F: kernel/power/ ++ ++HID CORE LAYER ++M: Jiri Kosina <jikos@kernel.org> ++M: Benjamin Tissoires <benjamin.tissoires@redhat.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git ++F: drivers/hid/ ++F: include/linux/hid* ++F: include/uapi/linux/hid* ++ ++HID PLAYSTATION DRIVER ++M: Roderick Colenbrander <roderick.colenbrander@sony.com> ++L: linux-input@vger.kernel.org ++S: Supported ++F: drivers/hid/hid-playstation.c ++ ++HID SENSOR HUB DRIVERS ++M: Jiri Kosina <jikos@kernel.org> ++M: Jonathan Cameron <jic23@kernel.org> ++M: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> ++L: linux-input@vger.kernel.org ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/hid/hid-sensor* ++F: drivers/hid/hid-sensor-* ++F: drivers/iio/*/hid-* ++F: include/linux/hid-sensor-* ++ ++HIGH-RESOLUTION TIMERS, CLOCKEVENTS ++M: Thomas Gleixner <tglx@linutronix.de> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core ++F: Documentation/timers/ ++F: include/linux/clockchips.h ++F: include/linux/hrtimer.h ++F: kernel/time/clockevents.c ++F: kernel/time/hrtimer.c ++F: kernel/time/timer_*.c ++ ++HIGH-SPEED SCC DRIVER FOR AX.25 ++L: linux-hams@vger.kernel.org ++S: Orphan ++F: drivers/net/hamradio/dmascc.c ++F: drivers/net/hamradio/scc.c ++ ++HIGHPOINT ROCKETRAID 3xxx RAID DRIVER ++M: HighPoint Linux Team <linux@highpoint-tech.com> ++S: Supported ++W: http://www.highpoint-tech.com ++F: Documentation/scsi/hptiop.rst ++F: drivers/scsi/hptiop.c ++ ++HIPPI ++M: Jes Sorensen <jes@trained-monkey.org> ++L: linux-hippi@sunsite.dk ++S: Maintained ++F: drivers/net/hippi/ ++F: include/linux/hippidevice.h ++F: include/uapi/linux/if_hippi.h ++F: net/802/hippi.c ++ ++HIRSCHMANN HELLCREEK ETHERNET SWITCH DRIVER ++M: Kurt Kanzenbach <kurt@linutronix.de> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/dsa/hirschmann,hellcreek.yaml ++F: drivers/net/dsa/hirschmann/* ++F: include/linux/platform_data/hirschmann-hellcreek.h ++F: net/dsa/tag_hellcreek.c ++ ++HISILICON DMA DRIVER ++M: Zhou Wang <wangzhou1@hisilicon.com> ++L: dmaengine@vger.kernel.org ++S: Maintained ++F: drivers/dma/hisi_dma.c ++ ++HISILICON GPIO DRIVER ++M: Luo Jiaxing <luojiaxing@huawei.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-hisi.c ++ ++HISILICON HIGH PERFORMANCE RSA ENGINE DRIVER (HPRE) ++M: Zaibo Xu <xuzaibo@huawei.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/debugfs-hisi-hpre ++F: drivers/crypto/hisilicon/hpre/hpre.h ++F: drivers/crypto/hisilicon/hpre/hpre_crypto.c ++F: drivers/crypto/hisilicon/hpre/hpre_main.c ++ ++HISILICON I2C CONTROLLER DRIVER ++M: Yicong Yang <yangyicong@hisilicon.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++W: https://www.hisilicon.com ++F: drivers/i2c/busses/i2c-hisi.c ++ ++HISILICON LPC BUS DRIVER ++M: john.garry@huawei.com ++S: Maintained ++W: http://www.hisilicon.com ++F: Documentation/devicetree/bindings/arm/hisilicon/low-pin-count.yaml ++F: drivers/bus/hisi_lpc.c ++ ++HISILICON NETWORK SUBSYSTEM 3 DRIVER (HNS3) ++M: Yisen Zhuang <yisen.zhuang@huawei.com> ++M: Salil Mehta <salil.mehta@huawei.com> ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://www.hisilicon.com ++F: drivers/net/ethernet/hisilicon/hns3/ ++ ++HISILICON NETWORK SUBSYSTEM DRIVER ++M: Yisen Zhuang <yisen.zhuang@huawei.com> ++M: Salil Mehta <salil.mehta@huawei.com> ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://www.hisilicon.com ++F: Documentation/devicetree/bindings/net/hisilicon*.txt ++F: drivers/net/ethernet/hisilicon/ ++ ++HIKEY960 ONBOARD USB GPIO HUB DRIVER ++M: John Stultz <john.stultz@linaro.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/misc/hisi_hikey_usb.c ++F: Documentation/devicetree/bindings/misc/hisilicon-hikey-usb.yaml ++ ++HISILICON PMU DRIVER ++M: Shaokun Zhang <zhangshaokun@hisilicon.com> ++S: Supported ++W: http://www.hisilicon.com ++F: Documentation/admin-guide/perf/hisi-pmu.rst ++F: drivers/perf/hisilicon ++ ++HISILICON QM AND ZIP Controller DRIVER ++M: Zhou Wang <wangzhou1@hisilicon.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/debugfs-hisi-zip ++F: drivers/crypto/hisilicon/qm.c ++F: drivers/crypto/hisilicon/qm.h ++F: drivers/crypto/hisilicon/sgl.c ++F: drivers/crypto/hisilicon/zip/ ++ ++HISILICON ROCE DRIVER ++M: Wenpeng Liang <liangwenpeng@huawei.com> ++M: Weihang Li <liweihang@huawei.com> ++L: linux-rdma@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/infiniband/hisilicon-hns-roce.txt ++F: drivers/infiniband/hw/hns/ ++ ++HISILICON SAS Controller ++M: John Garry <john.garry@huawei.com> ++S: Supported ++W: http://www.hisilicon.com ++F: Documentation/devicetree/bindings/scsi/hisilicon-sas.txt ++F: drivers/scsi/hisi_sas/ ++ ++HISILICON SECURITY ENGINE V2 DRIVER (SEC2) ++M: Zaibo Xu <xuzaibo@huawei.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/debugfs-hisi-sec ++F: drivers/crypto/hisilicon/sec2/sec.h ++F: drivers/crypto/hisilicon/sec2/sec_crypto.c ++F: drivers/crypto/hisilicon/sec2/sec_crypto.h ++F: drivers/crypto/hisilicon/sec2/sec_main.c ++ ++HISILICON SPI Controller DRIVER FOR KUNPENG SOCS ++M: Jay Fang <f.fangjian@huawei.com> ++L: linux-spi@vger.kernel.org ++S: Maintained ++W: http://www.hisilicon.com ++F: drivers/spi/spi-hisi-kunpeng.c ++ ++HISILICON SPMI CONTROLLER DRIVER FOR HIKEY 970 ++M: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/spmi/hisilicon,hisi-spmi-controller.yaml ++F: drivers/spmi/hisi-spmi-controller.c ++ ++HISILICON SPMI PMIC DRIVER FOR HIKEY 6421v600 ++M: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/mfd/hisilicon,hi6421-spmi-pmic.yaml ++F: drivers/mfd/hi6421-spmi-pmic.c ++ ++HISILICON TRUE RANDOM NUMBER GENERATOR V2 SUPPORT ++M: Zaibo Xu <xuzaibo@huawei.com> ++S: Maintained ++F: drivers/crypto/hisilicon/trng/trng.c ++ ++HISILICON V3XX SPI NOR FLASH Controller Driver ++M: John Garry <john.garry@huawei.com> ++S: Maintained ++W: http://www.hisilicon.com ++F: drivers/spi/spi-hisi-sfc-v3xx.c ++ ++HMM - Heterogeneous Memory Management ++M: Jérôme Glisse <jglisse@redhat.com> ++L: linux-mm@kvack.org ++S: Maintained ++F: Documentation/vm/hmm.rst ++F: include/linux/hmm* ++F: lib/test_hmm* ++F: mm/hmm* ++F: tools/testing/selftests/vm/*hmm* ++ ++HOST AP DRIVER ++M: Jouni Malinen <j@w1.fi> ++L: linux-wireless@vger.kernel.org ++S: Obsolete ++W: http://w1.fi/hostap-driver.html ++F: drivers/net/wireless/intersil/hostap/ ++ ++HP COMPAQ TC1100 TABLET WMI EXTRAS DRIVER ++L: platform-driver-x86@vger.kernel.org ++S: Orphan ++F: drivers/platform/x86/tc1100-wmi.c ++ ++HPET: High Precision Event Timers driver ++M: Clemens Ladisch <clemens@ladisch.de> ++S: Maintained ++F: Documentation/timers/hpet.rst ++F: drivers/char/hpet.c ++F: include/linux/hpet.h ++F: include/uapi/linux/hpet.h ++ ++HPET: x86 ++S: Orphan ++F: arch/x86/include/asm/hpet.h ++F: arch/x86/kernel/hpet.c ++ ++HPFS FILESYSTEM ++M: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> ++S: Maintained ++W: http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi ++F: fs/hpfs/ ++ ++HSI SUBSYSTEM ++M: Sebastian Reichel <sre@kernel.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi.git ++F: Documentation/ABI/testing/sysfs-bus-hsi ++F: Documentation/driver-api/hsi.rst ++F: drivers/hsi/ ++F: include/linux/hsi/ ++F: include/uapi/linux/hsi/ ++ ++HSO 3G MODEM DRIVER ++L: linux-usb@vger.kernel.org ++S: Orphan ++F: drivers/net/usb/hso.c ++ ++HSR NETWORK PROTOCOL ++L: netdev@vger.kernel.org ++S: Orphan ++F: net/hsr/ ++ ++HT16K33 LED CONTROLLER DRIVER ++M: Robin van der Gracht <robin@protonic.nl> ++S: Maintained ++F: Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml ++F: drivers/auxdisplay/ht16k33.c ++ ++HTCPEN TOUCHSCREEN DRIVER ++M: Pau Oliva Fora <pof@eslack.org> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/input/touchscreen/htcpen.c ++ ++HTS221 TEMPERATURE-HUMIDITY IIO DRIVER ++M: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++W: http://www.st.com/ ++F: Documentation/devicetree/bindings/iio/humidity/st,hts221.yaml ++F: drivers/iio/humidity/hts221* ++ ++HUAWEI ETHERNET DRIVER ++L: netdev@vger.kernel.org ++S: Orphan ++F: Documentation/networking/device_drivers/ethernet/huawei/hinic.rst ++F: drivers/net/ethernet/huawei/hinic/ ++ ++HUGETLB FILESYSTEM ++M: Mike Kravetz <mike.kravetz@oracle.com> ++L: linux-mm@kvack.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-kernel-mm-hugepages ++F: Documentation/admin-guide/mm/hugetlbpage.rst ++F: Documentation/vm/hugetlbfs_reserv.rst ++F: fs/hugetlbfs/ ++F: include/linux/hugetlb.h ++F: mm/hugetlb.c ++ ++HVA ST MEDIA DRIVER ++M: Jean-Christophe Trotin <jean-christophe.trotin@foss.st.com> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/platform/sti/hva ++ ++HWPOISON MEMORY FAILURE HANDLING ++M: Naoya Horiguchi <naoya.horiguchi@nec.com> ++L: linux-mm@kvack.org ++S: Maintained ++F: mm/hwpoison-inject.c ++F: mm/memory-failure.c ++ ++HYCON HY46XX TOUCHSCREEN SUPPORT ++M: Giulio Benetti <giulio.benetti@benettiengineering.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/input/touchscreen/hycon,hy46xx.yaml ++F: drivers/input/touchscreen/hycon-hy46xx.c ++ ++HYGON PROCESSOR SUPPORT ++M: Pu Wen <puwen@hygon.cn> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: arch/x86/kernel/cpu/hygon.c ++ ++HYNIX HI556 SENSOR DRIVER ++M: Shawn Tu <shawnx.tu@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/hi556.c ++ ++Hyper-V/Azure CORE AND DRIVERS ++M: "K. Y. Srinivasan" <kys@microsoft.com> ++M: Haiyang Zhang <haiyangz@microsoft.com> ++M: Stephen Hemminger <sthemmin@microsoft.com> ++M: Wei Liu <wei.liu@kernel.org> ++M: Dexuan Cui <decui@microsoft.com> ++L: linux-hyperv@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git ++F: Documentation/ABI/stable/sysfs-bus-vmbus ++F: Documentation/ABI/testing/debugfs-hyperv ++F: Documentation/networking/device_drivers/ethernet/microsoft/netvsc.rst ++F: arch/arm64/hyperv ++F: arch/arm64/include/asm/hyperv-tlfs.h ++F: arch/arm64/include/asm/mshyperv.h ++F: arch/x86/hyperv ++F: arch/x86/include/asm/hyperv-tlfs.h ++F: arch/x86/include/asm/mshyperv.h ++F: arch/x86/include/asm/trace/hyperv.h ++F: arch/x86/kernel/cpu/mshyperv.c ++F: drivers/clocksource/hyperv_timer.c ++F: drivers/hid/hid-hyperv.c ++F: drivers/hv/ ++F: drivers/input/serio/hyperv-keyboard.c ++F: drivers/iommu/hyperv-iommu.c ++F: drivers/net/ethernet/microsoft/ ++F: drivers/net/hyperv/ ++F: drivers/pci/controller/pci-hyperv-intf.c ++F: drivers/pci/controller/pci-hyperv.c ++F: drivers/scsi/storvsc_drv.c ++F: drivers/uio/uio_hv_generic.c ++F: drivers/video/fbdev/hyperv_fb.c ++F: include/asm-generic/hyperv-tlfs.h ++F: include/asm-generic/mshyperv.h ++F: include/clocksource/hyperv_timer.h ++F: include/linux/hyperv.h ++F: include/uapi/linux/hyperv.h ++F: net/vmw_vsock/hyperv_transport.c ++F: tools/hv/ ++ ++HYPERBUS SUPPORT ++M: Vignesh Raghavendra <vigneshr@ti.com> ++L: linux-mtd@lists.infradead.org ++S: Supported ++Q: http://patchwork.ozlabs.org/project/linux-mtd/list/ ++C: irc://irc.oftc.net/mtd ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git cfi/next ++F: Documentation/devicetree/bindings/mtd/cypress,hyperflash.txt ++F: Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt ++F: drivers/mtd/hyperbus/ ++F: include/linux/mtd/hyperbus.h ++ ++HYPERVISOR VIRTUAL CONSOLE DRIVER ++L: linuxppc-dev@lists.ozlabs.org ++S: Odd Fixes ++F: drivers/tty/hvc/ ++ ++I2C ACPI SUPPORT ++M: Mika Westerberg <mika.westerberg@linux.intel.com> ++L: linux-i2c@vger.kernel.org ++L: linux-acpi@vger.kernel.org ++S: Maintained ++F: drivers/i2c/i2c-core-acpi.c ++ ++I2C CONTROLLER DRIVER FOR NVIDIA GPU ++M: Ajay Gupta <ajayg@nvidia.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/i2c/busses/i2c-nvidia-gpu.rst ++F: drivers/i2c/busses/i2c-nvidia-gpu.c ++ ++I2C MUXES ++M: Peter Rosin <peda@axentia.se> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-arb* ++F: Documentation/devicetree/bindings/i2c/i2c-gate* ++F: Documentation/devicetree/bindings/i2c/i2c-mux* ++F: Documentation/i2c/i2c-topology.rst ++F: Documentation/i2c/muxes/ ++F: drivers/i2c/i2c-mux.c ++F: drivers/i2c/muxes/ ++F: include/linux/i2c-mux.h ++ ++I2C MV64XXX MARVELL AND ALLWINNER DRIVER ++M: Gregory CLEMENT <gregory.clement@bootlin.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml ++F: drivers/i2c/busses/i2c-mv64xxx.c ++ ++I2C OVER PARALLEL PORT ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/i2c/busses/i2c-parport.rst ++F: drivers/i2c/busses/i2c-parport.c ++ ++I2C SUBSYSTEM ++M: Wolfram Sang <wsa@kernel.org> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++W: https://i2c.wiki.kernel.org/ ++Q: https://patchwork.ozlabs.org/project/linux-i2c/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git ++F: Documentation/devicetree/bindings/i2c/i2c.txt ++F: Documentation/i2c/ ++F: drivers/i2c/* ++F: include/linux/i2c-dev.h ++F: include/linux/i2c-smbus.h ++F: include/linux/i2c.h ++F: include/uapi/linux/i2c-*.h ++F: include/uapi/linux/i2c.h ++ ++I2C SUBSYSTEM HOST DRIVERS ++L: linux-i2c@vger.kernel.org ++S: Odd Fixes ++W: https://i2c.wiki.kernel.org/ ++Q: https://patchwork.ozlabs.org/project/linux-i2c/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git ++F: Documentation/devicetree/bindings/i2c/ ++F: drivers/i2c/algos/ ++F: drivers/i2c/busses/ ++ ++I2C-TAOS-EVM DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/i2c/busses/i2c-taos-evm.rst ++F: drivers/i2c/busses/i2c-taos-evm.c ++ ++I2C-TINY-USB DRIVER ++M: Till Harbaum <till@harbaum.org> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++W: http://www.harbaum.org/till/i2c_tiny_usb ++F: drivers/i2c/busses/i2c-tiny-usb.c ++ ++I2C/SMBUS CONTROLLER DRIVERS FOR PC ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/i2c/busses/i2c-ali1535.rst ++F: Documentation/i2c/busses/i2c-ali1563.rst ++F: Documentation/i2c/busses/i2c-ali15x3.rst ++F: Documentation/i2c/busses/i2c-amd756.rst ++F: Documentation/i2c/busses/i2c-amd8111.rst ++F: Documentation/i2c/busses/i2c-i801.rst ++F: Documentation/i2c/busses/i2c-nforce2.rst ++F: Documentation/i2c/busses/i2c-piix4.rst ++F: Documentation/i2c/busses/i2c-sis5595.rst ++F: Documentation/i2c/busses/i2c-sis630.rst ++F: Documentation/i2c/busses/i2c-sis96x.rst ++F: Documentation/i2c/busses/i2c-via.rst ++F: Documentation/i2c/busses/i2c-viapro.rst ++F: drivers/i2c/busses/i2c-ali1535.c ++F: drivers/i2c/busses/i2c-ali1563.c ++F: drivers/i2c/busses/i2c-ali15x3.c ++F: drivers/i2c/busses/i2c-amd756-s4882.c ++F: drivers/i2c/busses/i2c-amd756.c ++F: drivers/i2c/busses/i2c-amd8111.c ++F: drivers/i2c/busses/i2c-i801.c ++F: drivers/i2c/busses/i2c-isch.c ++F: drivers/i2c/busses/i2c-nforce2-s4985.c ++F: drivers/i2c/busses/i2c-nforce2.c ++F: drivers/i2c/busses/i2c-piix4.c ++F: drivers/i2c/busses/i2c-sis5595.c ++F: drivers/i2c/busses/i2c-sis630.c ++F: drivers/i2c/busses/i2c-sis96x.c ++F: drivers/i2c/busses/i2c-via.c ++F: drivers/i2c/busses/i2c-viapro.c ++ ++I2C/SMBUS INTEL CHT WHISKEY COVE PMIC DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: drivers/i2c/busses/i2c-cht-wc.c ++ ++I2C/SMBUS ISMT DRIVER ++M: Seth Heasley <seth.heasley@intel.com> ++M: Neil Horman <nhorman@tuxdriver.com> ++L: linux-i2c@vger.kernel.org ++F: Documentation/i2c/busses/i2c-ismt.rst ++F: drivers/i2c/busses/i2c-ismt.c ++ ++I2C/SMBUS STUB DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: drivers/i2c/i2c-stub.c ++ ++I3C DRIVER FOR CADENCE I3C MASTER IP ++M: Przemysław Gaj <pgaj@cadence.com> ++S: Maintained ++F: Documentation/devicetree/bindings/i3c/cdns,i3c-master.txt ++F: drivers/i3c/master/i3c-master-cdns.c ++ ++I3C DRIVER FOR SYNOPSYS DESIGNWARE ++M: Vitor Soares <vitor.soares@synopsys.com> ++S: Maintained ++F: Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt ++F: drivers/i3c/master/dw* ++ ++I3C SUBSYSTEM ++M: Alexandre Belloni <alexandre.belloni@bootlin.com> ++L: linux-i3c@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++C: irc://chat.freenode.net/linux-i3c ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux.git ++F: Documentation/ABI/testing/sysfs-bus-i3c ++F: Documentation/devicetree/bindings/i3c/ ++F: Documentation/driver-api/i3c ++F: drivers/i3c/ ++F: include/linux/i3c/ ++ ++IA64 (Itanium) PLATFORM ++L: linux-ia64@vger.kernel.org ++S: Orphan ++F: Documentation/ia64/ ++F: arch/ia64/ ++ ++IBM Power 842 compression accelerator ++M: Haren Myneni <haren@us.ibm.com> ++S: Supported ++F: crypto/842.c ++F: drivers/crypto/nx/Kconfig ++F: drivers/crypto/nx/Makefile ++F: drivers/crypto/nx/nx-842* ++F: include/linux/sw842.h ++F: lib/842/ ++ ++IBM Power in-Nest Crypto Acceleration ++M: Breno Leitão <leitao@debian.org> ++M: Nayna Jain <nayna@linux.ibm.com> ++M: Paulo Flabiano Smorigo <pfsmorigo@gmail.com> ++L: linux-crypto@vger.kernel.org ++S: Supported ++F: drivers/crypto/nx/Kconfig ++F: drivers/crypto/nx/Makefile ++F: drivers/crypto/nx/nx-aes* ++F: drivers/crypto/nx/nx-sha* ++F: drivers/crypto/nx/nx.* ++F: drivers/crypto/nx/nx_csbcpb.h ++F: drivers/crypto/nx/nx_debugfs.c ++ ++IBM Power IO DLPAR Driver for RPA-compliant PPC64 platform ++M: Tyrel Datwyler <tyreld@linux.ibm.com> ++L: linux-pci@vger.kernel.org ++L: linuxppc-dev@lists.ozlabs.org ++S: Supported ++F: drivers/pci/hotplug/rpadlpar* ++ ++IBM Power Linux RAID adapter ++M: Brian King <brking@us.ibm.com> ++S: Supported ++F: drivers/scsi/ipr.* ++ ++IBM Power PCI Hotplug Driver for RPA-compliant PPC64 platform ++M: Tyrel Datwyler <tyreld@linux.ibm.com> ++L: linux-pci@vger.kernel.org ++L: linuxppc-dev@lists.ozlabs.org ++S: Supported ++F: drivers/pci/hotplug/rpaphp* ++ ++IBM Power SRIOV Virtual NIC Device Driver ++M: Dany Madden <drt@linux.ibm.com> ++M: Sukadev Bhattiprolu <sukadev@linux.ibm.com> ++R: Thomas Falcon <tlfalcon@linux.ibm.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/ibm/ibmvnic.* ++ ++IBM Power Virtual Accelerator Switchboard ++M: Sukadev Bhattiprolu <sukadev@linux.ibm.com> ++L: linuxppc-dev@lists.ozlabs.org ++S: Supported ++F: arch/powerpc/include/asm/vas.h ++F: arch/powerpc/platforms/powernv/copy-paste.h ++F: arch/powerpc/platforms/powernv/vas* ++ ++IBM Power Virtual Ethernet Device Driver ++M: Cristobal Forno <cforno12@linux.ibm.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/ibm/ibmveth.* ++ ++IBM Power Virtual FC Device Drivers ++M: Tyrel Datwyler <tyreld@linux.ibm.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/ibmvscsi/ibmvfc* ++ ++IBM Power Virtual Management Channel Driver ++M: Brad Warrum <bwarrum@linux.ibm.com> ++M: Ritu Agarwal <rituagar@linux.ibm.com> ++S: Supported ++F: drivers/misc/ibmvmc.* ++ ++IBM Power Virtual SCSI Device Drivers ++M: Tyrel Datwyler <tyreld@linux.ibm.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/ibmvscsi/ibmvscsi* ++F: include/scsi/viosrp.h ++ ++IBM Power Virtual SCSI Device Target Driver ++M: Michael Cyr <mikecyr@linux.ibm.com> ++L: linux-scsi@vger.kernel.org ++L: target-devel@vger.kernel.org ++S: Supported ++F: drivers/scsi/ibmvscsi_tgt/ ++ ++IBM Power VMX Cryptographic instructions ++M: Breno Leitão <leitao@debian.org> ++M: Nayna Jain <nayna@linux.ibm.com> ++M: Paulo Flabiano Smorigo <pfsmorigo@gmail.com> ++L: linux-crypto@vger.kernel.org ++S: Supported ++F: drivers/crypto/vmx/Kconfig ++F: drivers/crypto/vmx/Makefile ++F: drivers/crypto/vmx/aes* ++F: drivers/crypto/vmx/ghash* ++F: drivers/crypto/vmx/ppc-xlate.pl ++F: drivers/crypto/vmx/vmx.c ++ ++IBM ServeRAID RAID DRIVER ++S: Orphan ++F: drivers/scsi/ips.* ++ ++ICH LPC AND GPIO DRIVER ++M: Peter Tyser <ptyser@xes-inc.com> ++S: Maintained ++F: drivers/gpio/gpio-ich.c ++F: drivers/mfd/lpc_ich.c ++ ++ICY I2C DRIVER ++M: Max Staudt <max@enpas.org> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: drivers/i2c/busses/i2c-icy.c ++ ++IDEAPAD LAPTOP EXTRAS DRIVER ++M: Ike Panhc <ike.pan@canonical.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++W: http://launchpad.net/ideapad-laptop ++F: drivers/platform/x86/ideapad-laptop.c ++ ++IDEAPAD LAPTOP SLIDEBAR DRIVER ++M: Andrey Moiseev <o2g.org.ru@gmail.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++W: https://github.com/o2genum/ideapad-slidebar ++F: drivers/input/misc/ideapad_slidebar.c ++ ++IDT VersaClock 5 CLOCK DRIVER ++M: Luca Ceresoli <luca@lucaceresoli.net> ++S: Maintained ++F: Documentation/devicetree/bindings/clock/idt,versaclock5.yaml ++F: drivers/clk/clk-versaclock5.c ++ ++IEEE 802.15.4 SUBSYSTEM ++M: Alexander Aring <alex.aring@gmail.com> ++M: Stefan Schmidt <stefan@datenfreihafen.org> ++L: linux-wpan@vger.kernel.org ++S: Maintained ++W: https://linux-wpan.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next.git ++F: Documentation/networking/ieee802154.rst ++F: drivers/net/ieee802154/ ++F: include/linux/ieee802154.h ++F: include/linux/nl802154.h ++F: include/net/af_ieee802154.h ++F: include/net/cfg802154.h ++F: include/net/ieee802154_netdev.h ++F: include/net/mac802154.h ++F: include/net/nl802154.h ++F: net/ieee802154/ ++F: net/mac802154/ ++ ++IFE PROTOCOL ++M: Yotam Gigi <yotam.gi@gmail.com> ++M: Jamal Hadi Salim <jhs@mojatatu.com> ++F: include/net/ife.h ++F: include/uapi/linux/ife.h ++F: net/ife ++ ++IGORPLUG-USB IR RECEIVER ++M: Sean Young <sean@mess.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/rc/igorplugusb.c ++ ++IGUANAWORKS USB IR TRANSCEIVER ++M: Sean Young <sean@mess.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/rc/iguanair.c ++ ++IIO DIGITAL POTENTIOMETER DAC ++M: Peter Rosin <peda@axentia.se> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-bus-iio-dac-dpot-dac ++F: Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml ++F: drivers/iio/dac/dpot-dac.c ++ ++IIO ENVELOPE DETECTOR ++M: Peter Rosin <peda@axentia.se> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-bus-iio-adc-envelope-detector ++F: Documentation/devicetree/bindings/iio/adc/envelope-detector.yaml ++F: drivers/iio/adc/envelope-detector.c ++ ++IIO MULTIPLEXER ++M: Peter Rosin <peda@axentia.se> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml ++F: drivers/iio/multiplexer/iio-mux.c ++ ++IIO SCMI BASED DRIVER ++M: Jyoti Bhayana <jbhayana@google.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: drivers/iio/common/scmi_sensors/scmi_iio.c ++ ++IIO SUBSYSTEM AND DRIVERS ++M: Jonathan Cameron <jic23@kernel.org> ++R: Lars-Peter Clausen <lars@metafoo.de> ++L: linux-iio@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git ++F: Documentation/ABI/testing/configfs-iio* ++F: Documentation/ABI/testing/sysfs-bus-iio* ++F: Documentation/devicetree/bindings/iio/ ++F: drivers/iio/ ++F: drivers/staging/iio/ ++F: include/linux/iio/ ++F: tools/iio/ ++ ++IIO UNIT CONVERTER ++M: Peter Rosin <peda@axentia.se> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.yaml ++F: Documentation/devicetree/bindings/iio/afe/current-sense-shunt.yaml ++F: Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml ++F: drivers/iio/afe/iio-rescale.c ++ ++IKANOS/ADI EAGLE ADSL USB DRIVER ++M: Matthieu Castet <castet.matthieu@free.fr> ++M: Stanislaw Gruszka <stf_xl@wp.pl> ++S: Maintained ++F: drivers/usb/atm/ueagle-atm.c ++ ++IMGTEC ASCII LCD DRIVER ++M: Paul Burton <paulburton@kernel.org> ++S: Maintained ++F: Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml ++F: drivers/auxdisplay/img-ascii-lcd.c ++ ++IMGTEC IR DECODER DRIVER ++S: Orphan ++F: drivers/media/rc/img-ir/ ++ ++IMON SOUNDGRAPH USB IR RECEIVER ++M: Sean Young <sean@mess.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/rc/imon.c ++F: drivers/media/rc/imon_raw.c ++ ++IMS TWINTURBO FRAMEBUFFER DRIVER ++L: linux-fbdev@vger.kernel.org ++S: Orphan ++F: drivers/video/fbdev/imsttfb.c ++ ++INA209 HARDWARE MONITOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml ++F: Documentation/hwmon/ina209.rst ++F: drivers/hwmon/ina209.c ++ ++INA2XX HARDWARE MONITOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/ina2xx.rst ++F: drivers/hwmon/ina2xx.c ++F: include/linux/platform_data/ina2xx.h ++ ++INDUSTRY PACK SUBSYSTEM (IPACK) ++M: Samuel Iglesias Gonsalvez <siglesias@igalia.com> ++M: Jens Taprogge <jens.taprogge@taprogge.org> ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++L: industrypack-devel@lists.sourceforge.net ++S: Maintained ++W: http://industrypack.sourceforge.net ++F: drivers/ipack/ ++ ++INFINEON DPS310 Driver ++M: Eddie James <eajames@linux.ibm.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: drivers/iio/pressure/dps310.c ++ ++INFINIBAND SUBSYSTEM ++M: Doug Ledford <dledford@redhat.com> ++M: Jason Gunthorpe <jgg@nvidia.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++W: https://github.com/linux-rdma/rdma-core ++Q: http://patchwork.kernel.org/project/linux-rdma/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git ++F: Documentation/devicetree/bindings/infiniband/ ++F: Documentation/infiniband/ ++F: drivers/infiniband/ ++F: include/rdma/ ++F: include/trace/events/ib_mad.h ++F: include/trace/events/ib_umad.h ++F: include/uapi/linux/if_infiniband.h ++F: include/uapi/rdma/ ++F: samples/bpf/ibumad_kern.c ++F: samples/bpf/ibumad_user.c ++ ++INGENIC JZ4780 NAND DRIVER ++M: Harvey Hunt <harveyhuntnexus@gmail.com> ++L: linux-mtd@lists.infradead.org ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: drivers/mtd/nand/raw/ingenic/ ++ ++INGENIC JZ47xx SoCs ++M: Paul Cercueil <paul@crapouillou.net> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: arch/mips/boot/dts/ingenic/ ++F: arch/mips/generic/board-ingenic.c ++F: arch/mips/include/asm/mach-ingenic/ ++F: arch/mips/ingenic/Kconfig ++F: drivers/clk/ingenic/ ++F: drivers/dma/dma-jz4780.c ++F: drivers/gpu/drm/ingenic/ ++F: drivers/i2c/busses/i2c-jz4780.c ++F: drivers/iio/adc/ingenic-adc.c ++F: drivers/irqchip/irq-ingenic.c ++F: drivers/memory/jz4780-nemc.c ++F: drivers/mmc/host/jz4740_mmc.c ++F: drivers/mtd/nand/raw/ingenic/ ++F: drivers/pinctrl/pinctrl-ingenic.c ++F: drivers/power/supply/ingenic-battery.c ++F: drivers/pwm/pwm-jz4740.c ++F: drivers/remoteproc/ingenic_rproc.c ++F: drivers/rtc/rtc-jz4740.c ++F: drivers/tty/serial/8250/8250_ingenic.c ++F: drivers/usb/musb/jz4740.c ++F: drivers/watchdog/jz4740_wdt.c ++F: include/dt-bindings/iio/adc/ingenic,adc.h ++F: include/linux/mfd/ingenic-tcu.h ++F: sound/soc/codecs/jz47* ++F: sound/soc/jz4740/ ++ ++INOTIFY ++M: Jan Kara <jack@suse.cz> ++R: Amir Goldstein <amir73il@gmail.com> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++F: Documentation/filesystems/inotify.rst ++F: fs/notify/inotify/ ++F: include/linux/inotify.h ++F: include/uapi/linux/inotify.h ++ ++INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN) DRIVERS ++M: Dmitry Torokhov <dmitry.torokhov@gmail.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++Q: http://patchwork.kernel.org/project/linux-input/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git ++F: Documentation/devicetree/bindings/input/ ++F: Documentation/devicetree/bindings/serio/ ++F: Documentation/input/ ++F: drivers/input/ ++F: include/linux/input.h ++F: include/linux/input/ ++F: include/uapi/linux/input-event-codes.h ++F: include/uapi/linux/input.h ++ ++INPUT MULTITOUCH (MT) PROTOCOL ++M: Henrik Rydberg <rydberg@bitmath.org> ++L: linux-input@vger.kernel.org ++S: Odd fixes ++F: Documentation/input/multi-touch-protocol.rst ++F: drivers/input/input-mt.c ++K: \b(ABS|SYN)_MT_ ++ ++INSIDE SECURE CRYPTO DRIVER ++M: Antoine Tenart <atenart@kernel.org> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: drivers/crypto/inside-secure/ ++ ++INTEGRITY MEASUREMENT ARCHITECTURE (IMA) ++M: Mimi Zohar <zohar@linux.ibm.com> ++M: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> ++L: linux-integrity@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git ++F: security/integrity/ima/ ++ ++INTEL 810/815 FRAMEBUFFER DRIVER ++M: Antonino Daplas <adaplas@gmail.com> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/i810/ ++ ++INTEL ASoC DRIVERS ++M: Cezary Rojewski <cezary.rojewski@intel.com> ++M: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> ++M: Liam Girdwood <liam.r.girdwood@linux.intel.com> ++M: Jie Yang <yang.jie@linux.intel.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Supported ++F: sound/soc/intel/ ++ ++INTEL ATOMISP2 DUMMY / POWER-MANAGEMENT DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/intel/atomisp2/pm.c ++ ++INTEL ATOMISP2 LED DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/intel/atomisp2/led.c ++ ++INTEL BIOS SAR INT1092 DRIVER ++M: Shravan Sudhakar <s.shravan@intel.com> ++M: Intel Corporation <linuxwwan@intel.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/intel/int1092/ ++ ++INTEL BROXTON PMC DRIVER ++M: Mika Westerberg <mika.westerberg@linux.intel.com> ++M: Zha Qipeng <qipeng.zha@intel.com> ++S: Maintained ++F: drivers/mfd/intel_pmc_bxt.c ++F: include/linux/mfd/intel_pmc_bxt.h ++ ++INTEL C600 SERIES SAS CONTROLLER DRIVER ++M: Artur Paszkiewicz <artur.paszkiewicz@intel.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++T: git git://git.code.sf.net/p/intel-sas/isci ++F: drivers/scsi/isci/ ++ ++INTEL CPU family model numbers ++M: Tony Luck <tony.luck@intel.com> ++M: x86@kernel.org ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: arch/x86/include/asm/intel-family.h ++ ++INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets) ++M: Jani Nikula <jani.nikula@linux.intel.com> ++M: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> ++M: Rodrigo Vivi <rodrigo.vivi@intel.com> ++L: intel-gfx@lists.freedesktop.org ++S: Supported ++W: https://01.org/linuxgraphics/ ++Q: http://patchwork.freedesktop.org/project/intel-gfx/ ++B: https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs ++C: irc://irc.oftc.net/intel-gfx ++T: git git://anongit.freedesktop.org/drm-intel ++F: Documentation/gpu/i915.rst ++F: drivers/gpu/drm/i915/ ++F: include/drm/i915* ++F: include/uapi/drm/i915_drm.h ++ ++INTEL ETHERNET DRIVERS ++M: Jesse Brandeburg <jesse.brandeburg@intel.com> ++M: Tony Nguyen <anthony.l.nguyen@intel.com> ++L: intel-wired-lan@lists.osuosl.org (moderated for non-subscribers) ++S: Supported ++W: http://www.intel.com/support/feedback.htm ++W: http://e1000.sourceforge.net/ ++Q: http://patchwork.ozlabs.org/project/intel-wired-lan/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git ++F: Documentation/networking/device_drivers/ethernet/intel/ ++F: drivers/net/ethernet/intel/ ++F: drivers/net/ethernet/intel/*/ ++F: include/linux/avf/virtchnl.h ++F: include/linux/net/intel/iidc.h ++ ++INTEL ETHERNET PROTOCOL DRIVER FOR RDMA ++M: Mustafa Ismail <mustafa.ismail@intel.com> ++M: Shiraz Saleem <shiraz.saleem@intel.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++F: drivers/infiniband/hw/irdma/ ++F: include/uapi/rdma/irdma-abi.h ++ ++INTEL FRAMEBUFFER DRIVER (excluding 810 and 815) ++M: Maik Broemme <mbroemme@libmpq.org> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: Documentation/fb/intelfb.rst ++F: drivers/video/fbdev/intelfb/ ++ ++INTEL GPIO DRIVERS ++M: Andy Shevchenko <andy@kernel.org> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git ++F: drivers/gpio/gpio-ich.c ++F: drivers/gpio/gpio-merrifield.c ++F: drivers/gpio/gpio-ml-ioh.c ++F: drivers/gpio/gpio-pch.c ++F: drivers/gpio/gpio-sch.c ++F: drivers/gpio/gpio-sodaville.c ++ ++INTEL GVT-g DRIVERS (Intel GPU Virtualization) ++M: Zhenyu Wang <zhenyuw@linux.intel.com> ++M: Zhi Wang <zhi.a.wang@intel.com> ++L: intel-gvt-dev@lists.freedesktop.org ++L: intel-gfx@lists.freedesktop.org ++S: Supported ++W: https://01.org/igvt-g ++T: git https://github.com/intel/gvt-linux.git ++F: drivers/gpu/drm/i915/gvt/ ++ ++INTEL HID EVENT DRIVER ++M: Alex Hung <alex.hung@canonical.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/intel/hid.c ++ ++INTEL I/OAT DMA DRIVER ++M: Dave Jiang <dave.jiang@intel.com> ++R: Dan Williams <dan.j.williams@intel.com> ++L: dmaengine@vger.kernel.org ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-dmaengine/list/ ++F: drivers/dma/ioat* ++ ++INTEL IADX DRIVER ++M: Dave Jiang <dave.jiang@intel.com> ++L: dmaengine@vger.kernel.org ++S: Supported ++F: drivers/dma/idxd/* ++F: include/uapi/linux/idxd.h ++ ++INTEL IDLE DRIVER ++M: Jacob Pan <jacob.jun.pan@linux.intel.com> ++M: Len Brown <lenb@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Supported ++B: https://bugzilla.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git ++F: drivers/idle/intel_idle.c ++ ++INTEL INTEGRATED SENSOR HUB DRIVER ++M: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> ++M: Jiri Kosina <jikos@kernel.org> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/hid/intel-ish-hid/ ++ ++INTEL IOMMU (VT-d) ++M: David Woodhouse <dwmw2@infradead.org> ++M: Lu Baolu <baolu.lu@linux.intel.com> ++L: iommu@lists.linux-foundation.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git ++F: drivers/iommu/intel/ ++F: include/linux/intel-iommu.h ++F: include/linux/intel-svm.h ++ ++INTEL IOP-ADMA DMA DRIVER ++R: Dan Williams <dan.j.williams@intel.com> ++S: Odd fixes ++F: drivers/dma/iop-adma.c ++ ++INTEL IPU3 CSI-2 CIO2 DRIVER ++M: Yong Zhi <yong.zhi@intel.com> ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++M: Bingbu Cao <bingbu.cao@intel.com> ++M: Dan Scally <djrscally@gmail.com> ++R: Tianshu Qiu <tian.shu.qiu@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/userspace-api/media/v4l/pixfmt-srggb10-ipu3.rst ++F: drivers/media/pci/intel/ipu3/ ++ ++INTEL IPU3 CSI-2 IMGU DRIVER ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++R: Bingbu Cao <bingbu.cao@intel.com> ++R: Tianshu Qiu <tian.shu.qiu@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/admin-guide/media/ipu3.rst ++F: Documentation/admin-guide/media/ipu3_rcb.svg ++F: Documentation/userspace-api/media/v4l/pixfmt-meta-intel-ipu3.rst ++F: drivers/staging/media/ipu3/ ++ ++INTEL IXP4XX CRYPTO SUPPORT ++M: Corentin Labbe <clabbe@baylibre.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: drivers/crypto/ixp4xx_crypto.c ++ ++INTEL IXP4XX QMGR, NPE, ETHERNET and HSS SUPPORT ++M: Krzysztof Halasa <khalasa@piap.pl> ++S: Maintained ++F: drivers/net/ethernet/xscale/ixp4xx_eth.c ++F: drivers/net/wan/ixp4xx_hss.c ++F: drivers/soc/ixp4xx/ixp4xx-npe.c ++F: drivers/soc/ixp4xx/ixp4xx-qmgr.c ++F: include/linux/soc/ixp4xx/npe.h ++F: include/linux/soc/ixp4xx/qmgr.h ++ ++INTEL IXP4XX RANDOM NUMBER GENERATOR SUPPORT ++M: Deepak Saxena <dsaxena@plexity.net> ++S: Maintained ++F: Documentation/devicetree/bindings/display/intel,ixp46x-rng.yaml ++F: drivers/char/hw_random/ixp4xx-rng.c ++ ++INTEL KEEM BAY DRM DRIVER ++M: Anitha Chrisanthus <anitha.chrisanthus@intel.com> ++M: Edmund Dea <edmund.j.dea@intel.com> ++S: Maintained ++F: Documentation/devicetree/bindings/display/intel,kmb_display.yaml ++F: drivers/gpu/drm/kmb/ ++ ++INTEL KEEM BAY OCS AES/SM4 CRYPTO DRIVER ++M: Daniele Alessandrelli <daniele.alessandrelli@intel.com> ++S: Maintained ++F: Documentation/devicetree/bindings/crypto/intel,keembay-ocs-aes.yaml ++F: drivers/crypto/keembay/Kconfig ++F: drivers/crypto/keembay/Makefile ++F: drivers/crypto/keembay/keembay-ocs-aes-core.c ++F: drivers/crypto/keembay/ocs-aes.c ++F: drivers/crypto/keembay/ocs-aes.h ++ ++INTEL KEEM BAY OCS HCU CRYPTO DRIVER ++M: Daniele Alessandrelli <daniele.alessandrelli@intel.com> ++M: Declan Murphy <declan.murphy@intel.com> ++S: Maintained ++F: Documentation/devicetree/bindings/crypto/intel,keembay-ocs-hcu.yaml ++F: drivers/crypto/keembay/Kconfig ++F: drivers/crypto/keembay/Makefile ++F: drivers/crypto/keembay/keembay-ocs-hcu-core.c ++F: drivers/crypto/keembay/ocs-hcu.c ++F: drivers/crypto/keembay/ocs-hcu.h ++ ++INTEL MANAGEMENT ENGINE (mei) ++M: Tomas Winkler <tomas.winkler@intel.com> ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: Documentation/driver-api/mei/* ++F: drivers/misc/mei/ ++F: drivers/watchdog/mei_wdt.c ++F: include/linux/mei_cl_bus.h ++F: include/uapi/linux/mei.h ++F: samples/mei/* ++ ++INTEL MAX 10 BMC MFD DRIVER ++M: Xu Yilun <yilun.xu@intel.com> ++R: Tom Rix <trix@redhat.com> ++S: Maintained ++F: Documentation/ABI/testing/sysfs-driver-intel-m10-bmc ++F: Documentation/hwmon/intel-m10-bmc-hwmon.rst ++F: drivers/hwmon/intel-m10-bmc-hwmon.c ++F: drivers/mfd/intel-m10-bmc.c ++F: include/linux/mfd/intel-m10-bmc.h ++ ++INTEL MENLOW THERMAL DRIVER ++M: Sujith Thomas <sujith.thomas@intel.com> ++L: linux-pm@vger.kernel.org ++S: Supported ++W: https://01.org/linux-acpi ++F: drivers/thermal/intel/intel_menlow.c ++ ++INTEL P-Unit IPC DRIVER ++M: Zha Qipeng <qipeng.zha@intel.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: arch/x86/include/asm/intel_punit_ipc.h ++F: drivers/platform/x86/intel/punit_ipc.c ++ ++INTEL PMC CORE DRIVER ++M: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> ++M: David E Box <david.e.box@intel.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-platform-intel-pmc ++F: drivers/platform/x86/intel/pmc/ ++ ++INTEL PMIC GPIO DRIVERS ++M: Andy Shevchenko <andy@kernel.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git ++F: drivers/gpio/gpio-*cove.c ++ ++INTEL PMIC MULTIFUNCTION DEVICE DRIVERS ++M: Andy Shevchenko <andy@kernel.org> ++S: Maintained ++F: drivers/mfd/intel_soc_pmic* ++F: include/linux/mfd/intel_soc_pmic* ++ ++INTEL PMT DRIVER ++M: "David E. Box" <david.e.box@linux.intel.com> ++S: Maintained ++F: drivers/mfd/intel_pmt.c ++F: drivers/platform/x86/intel/pmt/ ++ ++INTEL PRO/WIRELESS 2100, 2200BG, 2915ABG NETWORK CONNECTION SUPPORT ++M: Stanislav Yakovlev <stas.yakovlev@gmail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: Documentation/networking/device_drivers/wifi/intel/ipw2100.rst ++F: Documentation/networking/device_drivers/wifi/intel/ipw2200.rst ++F: drivers/net/wireless/intel/ipw2x00/ ++ ++INTEL PSTATE DRIVER ++M: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> ++M: Len Brown <lenb@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Supported ++F: drivers/cpufreq/intel_pstate.c ++ ++INTEL QUADRATURE ENCODER PERIPHERAL DRIVER ++M: Jarkko Nikula <jarkko.nikula@linux.intel.com> ++L: linux-iio@vger.kernel.org ++F: drivers/counter/intel-qep.c ++ ++INTEL SCU DRIVERS ++M: Mika Westerberg <mika.westerberg@linux.intel.com> ++S: Maintained ++F: arch/x86/include/asm/intel_scu_ipc.h ++F: drivers/platform/x86/intel_scu_* ++ ++INTEL SKYLAKE INT3472 ACPI DEVICE DRIVER ++M: Daniel Scally <djrscally@gmail.com> ++S: Maintained ++F: drivers/platform/x86/intel/int3472/ ++ ++INTEL SPEED SELECT TECHNOLOGY ++M: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/intel/speed_select_if/ ++F: include/uapi/linux/isst_if.h ++F: tools/power/x86/intel-speed-select/ ++ ++INTEL STRATIX10 FIRMWARE DRIVERS ++M: Dinh Nguyen <dinguyen@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu ++F: Documentation/devicetree/bindings/firmware/intel,stratix10-svc.txt ++F: drivers/firmware/stratix10-rsu.c ++F: drivers/firmware/stratix10-svc.c ++F: include/linux/firmware/intel/stratix10-smc.h ++F: include/linux/firmware/intel/stratix10-svc-client.h ++ ++INTEL TELEMETRY DRIVER ++M: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> ++M: "David E. Box" <david.e.box@linux.intel.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: arch/x86/include/asm/intel_telemetry.h ++F: drivers/platform/x86/intel/telemetry/ ++ ++INTEL UNCORE FREQUENCY CONTROL ++M: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/intel/uncore-frequency.c ++ ++INTEL VIRTUAL BUTTON DRIVER ++M: AceLan Kao <acelan.kao@canonical.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/intel/vbtn.c ++ ++INTEL WIRELESS 3945ABG/BG, 4965AGN (iwlegacy) ++M: Stanislaw Gruszka <stf_xl@wp.pl> ++L: linux-wireless@vger.kernel.org ++S: Supported ++F: drivers/net/wireless/intel/iwlegacy/ ++ ++INTEL WIRELESS WIFI LINK (iwlwifi) ++M: Luca Coelho <luciano.coelho@intel.com> ++L: linux-wireless@vger.kernel.org ++S: Supported ++W: https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi.git ++F: drivers/net/wireless/intel/iwlwifi/ ++ ++INTEL WMI SLIM BOOTLOADER (SBL) FIRMWARE UPDATE DRIVER ++M: Jithu Joseph <jithu.joseph@intel.com> ++R: Maurice Ma <maurice.ma@intel.com> ++S: Maintained ++W: https://slimbootloader.github.io/security/firmware-update.html ++F: drivers/platform/x86/intel/wmi/sbl-fw-update.c ++ ++INTEL WMI THUNDERBOLT FORCE POWER DRIVER ++L: Dell.Client.Kernel@dell.com ++S: Maintained ++F: drivers/platform/x86/intel/wmi/thunderbolt.c ++ ++INTEL WWAN IOSM DRIVER ++M: M Chetan Kumar <m.chetan.kumar@intel.com> ++M: Intel Corporation <linuxwwan@intel.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/wwan/iosm/ ++ ++INTEL(R) TRACE HUB ++M: Alexander Shishkin <alexander.shishkin@linux.intel.com> ++S: Supported ++F: Documentation/trace/intel_th.rst ++F: drivers/hwtracing/intel_th/ ++F: include/linux/intel_th.h ++ ++INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT) ++M: Ning Sun <ning.sun@intel.com> ++L: tboot-devel@lists.sourceforge.net ++S: Supported ++W: http://tboot.sourceforge.net ++T: hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot ++F: Documentation/x86/intel_txt.rst ++F: arch/x86/kernel/tboot.c ++F: include/linux/tboot.h ++ ++INTEL SGX ++M: Jarkko Sakkinen <jarkko@kernel.org> ++R: Dave Hansen <dave.hansen@linux.intel.com> ++L: linux-sgx@vger.kernel.org ++S: Supported ++Q: https://patchwork.kernel.org/project/intel-sgx/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/sgx ++F: Documentation/x86/sgx.rst ++F: arch/x86/entry/vdso/vsgx.S ++F: arch/x86/include/asm/sgx.h ++F: arch/x86/include/uapi/asm/sgx.h ++F: arch/x86/kernel/cpu/sgx/* ++F: tools/testing/selftests/sgx/* ++K: \bSGX_ ++ ++INTERCONNECT API ++M: Georgi Djakov <djakov@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc.git ++F: Documentation/devicetree/bindings/interconnect/ ++F: Documentation/driver-api/interconnect.rst ++F: drivers/interconnect/ ++F: include/dt-bindings/interconnect/ ++F: include/linux/interconnect-provider.h ++F: include/linux/interconnect.h ++ ++INTERRUPT COUNTER DRIVER ++M: Oleksij Rempel <o.rempel@pengutronix.de> ++R: Pengutronix Kernel Team <kernel@pengutronix.de> ++L: linux-iio@vger.kernel.org ++F: Documentation/devicetree/bindings/counter/interrupt-counter.yaml ++F: drivers/counter/interrupt-cnt.c ++ ++INVENSENSE ICM-426xx IMU DRIVER ++M: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++W: https://invensense.tdk.com/ ++F: Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml ++F: drivers/iio/imu/inv_icm42600/ ++ ++INVENSENSE MPU-3050 GYROSCOPE DRIVER ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.yaml ++F: drivers/iio/gyro/mpu3050* ++ ++IOC3 ETHERNET DRIVER ++M: Ralf Baechle <ralf@linux-mips.org> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/sgi/ioc3-eth.c ++ ++IOMAP FILESYSTEM LIBRARY ++M: Christoph Hellwig <hch@infradead.org> ++M: Darrick J. Wong <djwong@kernel.org> ++M: linux-xfs@vger.kernel.org ++M: linux-fsdevel@vger.kernel.org ++L: linux-xfs@vger.kernel.org ++L: linux-fsdevel@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git ++F: fs/iomap/ ++F: include/linux/iomap.h ++ ++IOMMU DRIVERS ++M: Joerg Roedel <joro@8bytes.org> ++M: Will Deacon <will@kernel.org> ++L: iommu@lists.linux-foundation.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git ++F: Documentation/devicetree/bindings/iommu/ ++F: Documentation/userspace-api/iommu.rst ++F: drivers/iommu/ ++F: include/linux/iommu.h ++F: include/linux/iova.h ++F: include/linux/of_iommu.h ++F: include/uapi/linux/iommu.h ++ ++IO_URING ++M: Jens Axboe <axboe@kernel.dk> ++R: Pavel Begunkov <asml.silence@gmail.com> ++L: io-uring@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.dk/linux-block ++T: git git://git.kernel.dk/liburing ++F: fs/io-wq.c ++F: fs/io-wq.h ++F: fs/io_uring.c ++F: include/linux/io_uring.h ++F: include/uapi/linux/io_uring.h ++F: tools/io_uring/ ++ ++IPMI SUBSYSTEM ++M: Corey Minyard <minyard@acm.org> ++L: openipmi-developer@lists.sourceforge.net (moderated for non-subscribers) ++S: Supported ++W: http://openipmi.sourceforge.net/ ++F: Documentation/driver-api/ipmi.rst ++F: Documentation/devicetree/bindings/ipmi/ ++F: drivers/char/ipmi/ ++F: include/linux/ipmi* ++F: include/uapi/linux/ipmi* ++ ++IPS SCSI RAID DRIVER ++M: Adaptec OEM Raid Solutions <aacraid@microsemi.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++W: http://www.adaptec.com/ ++F: drivers/scsi/ips* ++ ++IPVS ++M: Simon Horman <horms@verge.net.au> ++M: Julian Anastasov <ja@ssi.bg> ++L: netdev@vger.kernel.org ++L: lvs-devel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs-next.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git ++F: Documentation/networking/ipvs-sysctl.rst ++F: include/net/ip_vs.h ++F: include/uapi/linux/ip_vs.h ++F: net/netfilter/ipvs/ ++ ++IPWIRELESS DRIVER ++M: Jiri Kosina <jikos@kernel.org> ++M: David Sterba <dsterba@suse.com> ++S: Odd Fixes ++F: drivers/tty/ipwireless/ ++ ++IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY) ++M: Marc Zyngier <maz@kernel.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core ++F: Documentation/core-api/irq/irq-domain.rst ++F: include/linux/irqdomain.h ++F: kernel/irq/irqdomain.c ++F: kernel/irq/msi.c ++ ++IRQ SUBSYSTEM ++M: Thomas Gleixner <tglx@linutronix.de> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core ++F: kernel/irq/ ++ ++IRQCHIP DRIVERS ++M: Thomas Gleixner <tglx@linutronix.de> ++M: Marc Zyngier <maz@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core ++F: Documentation/devicetree/bindings/interrupt-controller/ ++F: drivers/irqchip/ ++ ++ISA ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++S: Maintained ++F: Documentation/driver-api/isa.rst ++F: drivers/base/isa.c ++F: include/linux/isa.h ++ ++ISA RADIO MODULE ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-isa* ++ ++ISAPNP ++M: Jaroslav Kysela <perex@perex.cz> ++S: Maintained ++F: Documentation/driver-api/isapnp.rst ++F: drivers/pnp/isapnp/ ++F: include/linux/isapnp.h ++ ++ISCSI ++M: Lee Duncan <lduncan@suse.com> ++M: Chris Leech <cleech@redhat.com> ++L: open-iscsi@googlegroups.com ++L: linux-scsi@vger.kernel.org ++S: Maintained ++W: www.open-iscsi.com ++F: drivers/scsi/*iscsi* ++F: include/scsi/*iscsi* ++ ++iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER ++M: Peter Jones <pjones@redhat.com> ++M: Konrad Rzeszutek Wilk <konrad@kernel.org> ++S: Maintained ++F: drivers/firmware/iscsi_ibft* ++ ++ISCSI EXTENSIONS FOR RDMA (ISER) INITIATOR ++M: Sagi Grimberg <sagi@grimberg.me> ++M: Max Gurtovoy <mgurtovoy@nvidia.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++W: http://www.openfabrics.org ++W: www.open-iscsi.org ++Q: http://patchwork.kernel.org/project/linux-rdma/list/ ++F: drivers/infiniband/ulp/iser/ ++ ++ISCSI EXTENSIONS FOR RDMA (ISER) TARGET ++M: Sagi Grimberg <sagi@grimberg.me> ++L: linux-rdma@vger.kernel.org ++L: target-devel@vger.kernel.org ++S: Supported ++W: http://www.linux-iscsi.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master ++F: drivers/infiniband/ulp/isert ++ ++ISDN/CMTP OVER BLUETOOTH ++M: Karsten Keil <isdn@linux-pingi.de> ++L: isdn4linux@listserv.isdn4linux.de (subscribers-only) ++L: netdev@vger.kernel.org ++S: Odd Fixes ++W: http://www.isdn4linux.de ++F: Documentation/isdn/ ++F: drivers/isdn/capi/ ++F: include/linux/isdn/ ++F: include/uapi/linux/isdn/ ++F: net/bluetooth/cmtp/ ++ ++ISDN/mISDN SUBSYSTEM ++M: Karsten Keil <isdn@linux-pingi.de> ++L: isdn4linux@listserv.isdn4linux.de (subscribers-only) ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://www.isdn4linux.de ++F: drivers/isdn/Kconfig ++F: drivers/isdn/Makefile ++F: drivers/isdn/hardware/ ++F: drivers/isdn/mISDN/ ++ ++IT87 HARDWARE MONITORING DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/it87.rst ++F: drivers/hwmon/it87.c ++ ++IT913X MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/tuners/it913x* ++ ++ITE IT66121 HDMI BRIDGE DRIVER ++M: Phong LE <ple@baylibre.com> ++M: Neil Armstrong <narmstrong@baylibre.com> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml ++F: drivers/gpu/drm/bridge/ite-it66121.c ++ ++IVTV VIDEO4LINUX DRIVER ++M: Andy Walls <awalls@md.metrocast.net> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/admin-guide/media/ivtv* ++F: drivers/media/pci/ivtv/ ++F: include/uapi/linux/ivtv* ++ ++IX2505V MEDIA DRIVER ++M: Malcolm Priestley <tvboxspy@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/dvb-frontends/ix2505v* ++ ++JAILHOUSE HYPERVISOR INTERFACE ++M: Jan Kiszka <jan.kiszka@siemens.com> ++L: jailhouse-dev@googlegroups.com ++S: Maintained ++F: arch/x86/include/asm/jailhouse_para.h ++F: arch/x86/kernel/jailhouse.c ++ ++JC42.4 TEMPERATURE SENSOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/jc42.rst ++F: drivers/hwmon/jc42.c ++ ++JFS FILESYSTEM ++M: Dave Kleikamp <shaggy@kernel.org> ++L: jfs-discussion@lists.sourceforge.net ++S: Maintained ++W: http://jfs.sourceforge.net/ ++T: git git://github.com/kleikamp/linux-shaggy.git ++F: Documentation/admin-guide/jfs.rst ++F: fs/jfs/ ++ ++JME NETWORK DRIVER ++M: Guo-Fu Tseng <cooldavid@cooldavid.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/jme.* ++ ++JOURNALLING FLASH FILE SYSTEM V2 (JFFS2) ++M: David Woodhouse <dwmw2@infradead.org> ++M: Richard Weinberger <richard@nod.at> ++L: linux-mtd@lists.infradead.org ++S: Odd Fixes ++W: http://www.linux-mtd.infradead.org/doc/jffs2.html ++T: git git://git.infradead.org/ubifs-2.6.git ++F: fs/jffs2/ ++F: include/uapi/linux/jffs2.h ++ ++JOURNALLING LAYER FOR BLOCK DEVICES (JBD2) ++M: "Theodore Ts'o" <tytso@mit.edu> ++M: Jan Kara <jack@suse.com> ++L: linux-ext4@vger.kernel.org ++S: Maintained ++F: fs/jbd2/ ++F: include/linux/jbd2.h ++ ++JPU V4L2 MEM2MEM DRIVER FOR RENESAS ++M: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/platform/rcar_jpu.c ++ ++JSM Neo PCI based serial card ++L: linux-serial@vger.kernel.org ++S: Orphan ++F: drivers/tty/serial/jsm/ ++ ++K10TEMP HARDWARE MONITORING DRIVER ++M: Clemens Ladisch <clemens@ladisch.de> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/k10temp.rst ++F: drivers/hwmon/k10temp.c ++ ++K8TEMP HARDWARE MONITORING DRIVER ++M: Rudolf Marek <r.marek@assembler.cz> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/k8temp.rst ++F: drivers/hwmon/k8temp.c ++ ++KASAN ++M: Andrey Ryabinin <ryabinin.a.a@gmail.com> ++R: Alexander Potapenko <glider@google.com> ++R: Andrey Konovalov <andreyknvl@gmail.com> ++R: Dmitry Vyukov <dvyukov@google.com> ++L: kasan-dev@googlegroups.com ++S: Maintained ++F: Documentation/dev-tools/kasan.rst ++F: arch/*/include/asm/*kasan.h ++F: arch/*/mm/kasan_init* ++F: include/linux/kasan*.h ++F: lib/Kconfig.kasan ++F: lib/test_kasan*.c ++F: mm/kasan/ ++F: scripts/Makefile.kasan ++ ++KCONFIG ++M: Masahiro Yamada <masahiroy@kernel.org> ++L: linux-kbuild@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git kconfig ++F: Documentation/kbuild/kconfig* ++F: scripts/Kconfig.include ++F: scripts/kconfig/ ++ ++KCOV ++R: Dmitry Vyukov <dvyukov@google.com> ++R: Andrey Konovalov <andreyknvl@gmail.com> ++L: kasan-dev@googlegroups.com ++S: Maintained ++F: Documentation/dev-tools/kcov.rst ++F: include/linux/kcov.h ++F: include/uapi/linux/kcov.h ++F: kernel/kcov.c ++F: scripts/Makefile.kcov ++ ++KCSAN ++M: Marco Elver <elver@google.com> ++R: Dmitry Vyukov <dvyukov@google.com> ++L: kasan-dev@googlegroups.com ++S: Maintained ++F: Documentation/dev-tools/kcsan.rst ++F: include/linux/kcsan*.h ++F: kernel/kcsan/ ++F: lib/Kconfig.kcsan ++F: scripts/Makefile.kcsan ++ ++KDUMP ++M: Dave Young <dyoung@redhat.com> ++M: Baoquan He <bhe@redhat.com> ++R: Vivek Goyal <vgoyal@redhat.com> ++L: kexec@lists.infradead.org ++S: Maintained ++W: http://lse.sourceforge.net/kdump/ ++F: Documentation/admin-guide/kdump/ ++F: fs/proc/vmcore.c ++F: include/linux/crash_core.h ++F: include/linux/crash_dump.h ++F: include/uapi/linux/vmcore.h ++F: kernel/crash_*.c ++ ++KEENE FM RADIO TRANSMITTER DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-keene* ++ ++KERNEL AUTOMOUNTER ++M: Ian Kent <raven@themaw.net> ++L: autofs@vger.kernel.org ++S: Maintained ++F: fs/autofs/ ++ ++KERNEL BUILD + files below scripts/ (unless maintained elsewhere) ++M: Masahiro Yamada <masahiroy@kernel.org> ++M: Michal Marek <michal.lkml@markovi.net> ++R: Nick Desaulniers <ndesaulniers@google.com> ++L: linux-kbuild@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git ++F: Documentation/kbuild/ ++F: Makefile ++F: scripts/*vmlinux* ++F: scripts/Kbuild* ++F: scripts/Makefile* ++F: scripts/basic/ ++F: scripts/dummy-tools/ ++F: scripts/mk* ++F: scripts/mod/ ++F: scripts/package/ ++ ++KERNEL JANITORS ++L: kernel-janitors@vger.kernel.org ++S: Odd Fixes ++W: http://kernelnewbies.org/KernelJanitors ++ ++KERNEL NFSD, SUNRPC, AND LOCKD SERVERS ++M: "J. Bruce Fields" <bfields@fieldses.org> ++M: Chuck Lever <chuck.lever@oracle.com> ++L: linux-nfs@vger.kernel.org ++S: Supported ++W: http://nfs.sourceforge.net/ ++T: git git://linux-nfs.org/~bfields/linux.git ++F: fs/lockd/ ++F: fs/nfs_common/ ++F: fs/nfsd/ ++F: include/linux/lockd/ ++F: include/linux/sunrpc/ ++F: include/uapi/linux/nfsd/ ++F: include/uapi/linux/sunrpc/ ++F: net/sunrpc/ ++F: Documentation/filesystems/nfs/ ++ ++KERNEL REGRESSIONS ++M: Thorsten Leemhuis <linux@leemhuis.info> ++L: regressions@lists.linux.dev ++S: Supported ++ ++KERNEL SELFTEST FRAMEWORK ++M: Shuah Khan <shuah@kernel.org> ++M: Shuah Khan <skhan@linuxfoundation.org> ++L: linux-kselftest@vger.kernel.org ++S: Maintained ++Q: https://patchwork.kernel.org/project/linux-kselftest/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git ++F: Documentation/dev-tools/kselftest* ++F: tools/testing/selftests/ ++ ++KERNEL SMB3 SERVER (KSMBD) ++M: Namjae Jeon <linkinjeon@kernel.org> ++M: Sergey Senozhatsky <senozhatsky@chromium.org> ++M: Steve French <sfrench@samba.org> ++M: Hyunchul Lee <hyc.lee@gmail.com> ++L: linux-cifs@vger.kernel.org ++S: Maintained ++T: git git://git.samba.org/ksmbd.git ++F: fs/ksmbd/ ++F: fs/smbfs_common/ ++ ++KERNEL UNIT TESTING FRAMEWORK (KUnit) ++M: Brendan Higgins <brendanhiggins@google.com> ++L: linux-kselftest@vger.kernel.org ++L: kunit-dev@googlegroups.com ++S: Maintained ++W: https://google.github.io/kunit-docs/third_party/kernel/docs/ ++F: Documentation/dev-tools/kunit/ ++F: include/kunit/ ++F: lib/kunit/ ++F: tools/testing/kunit/ ++ ++KERNEL USERMODE HELPER ++M: Luis Chamberlain <mcgrof@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: include/linux/umh.h ++F: kernel/umh.c ++ ++KERNEL VIRTUAL MACHINE (KVM) ++M: Paolo Bonzini <pbonzini@redhat.com> ++L: kvm@vger.kernel.org ++S: Supported ++W: http://www.linux-kvm.org ++T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git ++F: Documentation/virt/kvm/ ++F: include/asm-generic/kvm* ++F: include/kvm/iodev.h ++F: include/linux/kvm* ++F: include/trace/events/kvm.h ++F: include/uapi/asm-generic/kvm* ++F: include/uapi/linux/kvm* ++F: tools/kvm/ ++F: tools/testing/selftests/kvm/ ++F: virt/kvm/* ++ ++KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64) ++M: Marc Zyngier <maz@kernel.org> ++R: James Morse <james.morse@arm.com> ++R: Alexandru Elisei <alexandru.elisei@arm.com> ++R: Suzuki K Poulose <suzuki.poulose@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: kvmarm@lists.cs.columbia.edu (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git ++F: arch/arm64/include/asm/kvm* ++F: arch/arm64/include/uapi/asm/kvm* ++F: arch/arm64/kvm/ ++F: include/kvm/arm_* ++F: tools/testing/selftests/kvm/*/aarch64/ ++F: tools/testing/selftests/kvm/aarch64/ ++ ++KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips) ++M: Huacai Chen <chenhuacai@kernel.org> ++M: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> ++L: linux-mips@vger.kernel.org ++L: kvm@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git ++F: arch/mips/include/asm/kvm* ++F: arch/mips/include/uapi/asm/kvm* ++F: arch/mips/kvm/ ++ ++KERNEL VIRTUAL MACHINE FOR POWERPC (KVM/powerpc) ++M: Paul Mackerras <paulus@ozlabs.org> ++L: kvm-ppc@vger.kernel.org ++S: Supported ++W: http://www.linux-kvm.org/ ++T: git git://github.com/agraf/linux-2.6.git ++F: arch/powerpc/include/asm/kvm* ++F: arch/powerpc/include/uapi/asm/kvm* ++F: arch/powerpc/kernel/kvm* ++F: arch/powerpc/kvm/ ++ ++KERNEL VIRTUAL MACHINE for s390 (KVM/s390) ++M: Christian Borntraeger <borntraeger@de.ibm.com> ++M: Janosch Frank <frankja@linux.ibm.com> ++R: David Hildenbrand <david@redhat.com> ++R: Claudio Imbrenda <imbrenda@linux.ibm.com> ++L: kvm@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git ++F: Documentation/virt/kvm/s390* ++F: arch/s390/include/asm/gmap.h ++F: arch/s390/include/asm/kvm* ++F: arch/s390/include/uapi/asm/kvm* ++F: arch/s390/kernel/uv.c ++F: arch/s390/kvm/ ++F: arch/s390/mm/gmap.c ++F: tools/testing/selftests/kvm/*/s390x/ ++F: tools/testing/selftests/kvm/s390x/ ++ ++KERNEL VIRTUAL MACHINE FOR X86 (KVM/x86) ++M: Paolo Bonzini <pbonzini@redhat.com> ++R: Sean Christopherson <seanjc@google.com> ++R: Vitaly Kuznetsov <vkuznets@redhat.com> ++R: Wanpeng Li <wanpengli@tencent.com> ++R: Jim Mattson <jmattson@google.com> ++R: Joerg Roedel <joro@8bytes.org> ++L: kvm@vger.kernel.org ++S: Supported ++W: http://www.linux-kvm.org ++T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git ++F: arch/x86/include/asm/kvm* ++F: arch/x86/include/asm/pvclock-abi.h ++F: arch/x86/include/asm/svm.h ++F: arch/x86/include/asm/vmx*.h ++F: arch/x86/include/uapi/asm/kvm* ++F: arch/x86/include/uapi/asm/svm.h ++F: arch/x86/include/uapi/asm/vmx.h ++F: arch/x86/kernel/kvm.c ++F: arch/x86/kernel/kvmclock.c ++F: arch/x86/kvm/ ++F: arch/x86/kvm/*/ ++ ++KERNFS ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++M: Tejun Heo <tj@kernel.org> ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git ++F: fs/kernfs/ ++F: include/linux/kernfs.h ++ ++KEXEC ++M: Eric Biederman <ebiederm@xmission.com> ++L: kexec@lists.infradead.org ++S: Maintained ++W: http://kernel.org/pub/linux/utils/kernel/kexec/ ++F: include/linux/kexec.h ++F: include/uapi/linux/kexec.h ++F: kernel/kexec* ++ ++KEYS-ENCRYPTED ++M: Mimi Zohar <zohar@linux.ibm.com> ++L: linux-integrity@vger.kernel.org ++L: keyrings@vger.kernel.org ++S: Supported ++F: Documentation/security/keys/trusted-encrypted.rst ++F: include/keys/encrypted-type.h ++F: security/keys/encrypted-keys/ ++ ++KEYS-TRUSTED ++M: James Bottomley <jejb@linux.ibm.com> ++M: Jarkko Sakkinen <jarkko@kernel.org> ++M: Mimi Zohar <zohar@linux.ibm.com> ++L: linux-integrity@vger.kernel.org ++L: keyrings@vger.kernel.org ++S: Supported ++F: Documentation/security/keys/trusted-encrypted.rst ++F: include/keys/trusted-type.h ++F: include/keys/trusted_tpm.h ++F: security/keys/trusted-keys/ ++ ++KEYS-TRUSTED-TEE ++M: Sumit Garg <sumit.garg@linaro.org> ++L: linux-integrity@vger.kernel.org ++L: keyrings@vger.kernel.org ++S: Supported ++F: include/keys/trusted_tee.h ++F: security/keys/trusted-keys/trusted_tee.c ++ ++KEYS/KEYRINGS ++M: David Howells <dhowells@redhat.com> ++M: Jarkko Sakkinen <jarkko@kernel.org> ++L: keyrings@vger.kernel.org ++S: Maintained ++F: Documentation/security/keys/core.rst ++F: include/keys/ ++F: include/linux/key-type.h ++F: include/linux/key.h ++F: include/linux/keyctl.h ++F: include/uapi/linux/keyctl.h ++F: security/keys/ ++ ++KFENCE ++M: Alexander Potapenko <glider@google.com> ++M: Marco Elver <elver@google.com> ++R: Dmitry Vyukov <dvyukov@google.com> ++L: kasan-dev@googlegroups.com ++S: Maintained ++F: Documentation/dev-tools/kfence.rst ++F: arch/*/include/asm/kfence.h ++F: include/linux/kfence.h ++F: lib/Kconfig.kfence ++F: mm/kfence/ ++ ++KFIFO ++M: Stefani Seibold <stefani@seibold.net> ++S: Maintained ++F: include/linux/kfifo.h ++F: lib/kfifo.c ++F: samples/kfifo/ ++ ++KGDB / KDB /debug_core ++M: Jason Wessel <jason.wessel@windriver.com> ++M: Daniel Thompson <daniel.thompson@linaro.org> ++R: Douglas Anderson <dianders@chromium.org> ++L: kgdb-bugreport@lists.sourceforge.net ++S: Maintained ++W: http://kgdb.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb.git ++F: Documentation/dev-tools/kgdb.rst ++F: drivers/misc/kgdbts.c ++F: drivers/tty/serial/kgdboc.c ++F: include/linux/kdb.h ++F: include/linux/kgdb.h ++F: kernel/debug/ ++ ++KHADAS MCU MFD DRIVER ++M: Neil Armstrong <narmstrong@baylibre.com> ++L: linux-amlogic@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/mfd/khadas,mcu.yaml ++F: drivers/mfd/khadas-mcu.c ++F: include/linux/mfd/khadas-mcu.h ++F: drivers/thermal/khadas_mcu_fan.c ++ ++KMEMLEAK ++M: Catalin Marinas <catalin.marinas@arm.com> ++S: Maintained ++F: Documentation/dev-tools/kmemleak.rst ++F: include/linux/kmemleak.h ++F: mm/kmemleak.c ++F: samples/kmemleak/kmemleak-test.c ++ ++KMOD KERNEL MODULE LOADER - USERMODE HELPER ++M: Luis Chamberlain <mcgrof@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: include/linux/kmod.h ++F: kernel/kmod.c ++F: lib/test_kmod.c ++F: tools/testing/selftests/kmod/ ++ ++KPROBES ++M: Naveen N. Rao <naveen.n.rao@linux.ibm.com> ++M: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> ++M: "David S. Miller" <davem@davemloft.net> ++M: Masami Hiramatsu <mhiramat@kernel.org> ++S: Maintained ++F: Documentation/trace/kprobes.rst ++F: include/asm-generic/kprobes.h ++F: include/linux/kprobes.h ++F: kernel/kprobes.c ++ ++KS0108 LCD CONTROLLER DRIVER ++M: Miguel Ojeda <ojeda@kernel.org> ++S: Maintained ++F: Documentation/admin-guide/auxdisplay/ks0108.rst ++F: drivers/auxdisplay/ks0108.c ++F: include/linux/ks0108.h ++ ++KTD253 BACKLIGHT DRIVER ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++F: Documentation/devicetree/bindings/leds/backlight/kinetic,ktd253.yaml ++F: drivers/video/backlight/ktd253-backlight.c ++ ++KTEST ++M: Steven Rostedt <rostedt@goodmis.org> ++M: John Hawley <warthog9@eaglescrag.net> ++S: Maintained ++F: tools/testing/ktest ++ ++L3MDEV ++M: David Ahern <dsahern@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: include/net/l3mdev.h ++F: net/l3mdev ++ ++L7 BPF FRAMEWORK ++M: John Fastabend <john.fastabend@gmail.com> ++M: Daniel Borkmann <daniel@iogearbox.net> ++M: Jakub Sitnicki <jakub@cloudflare.com> ++M: Lorenz Bauer <lmb@cloudflare.com> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: include/linux/skmsg.h ++F: net/core/skmsg.c ++F: net/core/sock_map.c ++F: net/ipv4/tcp_bpf.c ++F: net/ipv4/udp_bpf.c ++F: net/unix/unix_bpf.c ++ ++LANDLOCK SECURITY MODULE ++M: Mickaël Salaün <mic@digikod.net> ++L: linux-security-module@vger.kernel.org ++S: Supported ++W: https://landlock.io ++T: git https://github.com/landlock-lsm/linux.git ++F: Documentation/security/landlock.rst ++F: Documentation/userspace-api/landlock.rst ++F: include/uapi/linux/landlock.h ++F: samples/landlock/ ++F: security/landlock/ ++F: tools/testing/selftests/landlock/ ++K: landlock ++K: LANDLOCK ++ ++LANTIQ / INTEL Ethernet drivers ++M: Hauke Mehrtens <hauke@hauke-m.de> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/dsa/lantiq_gswip.c ++F: drivers/net/dsa/lantiq_pce.h ++F: drivers/net/ethernet/lantiq_xrx200.c ++F: net/dsa/tag_gswip.c ++ ++LANTIQ MIPS ARCHITECTURE ++M: John Crispin <john@phrozen.org> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: arch/mips/lantiq ++F: drivers/soc/lantiq ++ ++LASI 53c700 driver for PARISC ++M: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: Documentation/scsi/53c700.rst ++F: drivers/scsi/53c700* ++ ++LEAKING_ADDRESSES ++M: Tobin C. Harding <me@tobin.cc> ++M: Tycho Andersen <tycho@tycho.pizza> ++L: linux-hardening@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tobin/leaks.git ++F: scripts/leaking_addresses.pl ++ ++LED SUBSYSTEM ++M: Pavel Machek <pavel@ucw.cz> ++L: linux-leds@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git ++F: Documentation/devicetree/bindings/leds/ ++F: drivers/leds/ ++F: include/linux/leds.h ++ ++LEGACY EEPROM DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++S: Maintained ++F: Documentation/misc-devices/eeprom.rst ++F: drivers/misc/eeprom/eeprom.c ++ ++LEGO MINDSTORMS EV3 ++R: David Lechner <david@lechnology.com> ++S: Maintained ++F: Documentation/devicetree/bindings/power/supply/lego,ev3-battery.yaml ++F: arch/arm/boot/dts/da850-lego-ev3.dts ++F: drivers/power/supply/lego_ev3_battery.c ++ ++LEGO USB Tower driver ++M: Juergen Stuber <starblue@users.sourceforge.net> ++L: legousb-devel@lists.sourceforge.net ++S: Maintained ++W: http://legousb.sourceforge.net/ ++F: drivers/usb/misc/legousbtower.c ++ ++LG LAPTOP EXTRAS ++M: Matan Ziv-Av <matan@svgalib.org> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-platform-lg-laptop ++F: Documentation/admin-guide/laptops/lg-laptop.rst ++F: drivers/platform/x86/lg-laptop.c ++ ++LG2160 MEDIA DRIVER ++M: Michael Krufky <mkrufky@linuxtv.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://github.com/mkrufky ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mkrufky/tuners.git ++F: drivers/media/dvb-frontends/lg2160.* ++ ++LGDT3305 MEDIA DRIVER ++M: Michael Krufky <mkrufky@linuxtv.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://github.com/mkrufky ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mkrufky/tuners.git ++F: drivers/media/dvb-frontends/lgdt3305.* ++ ++LIBATA PATA ARASAN COMPACT FLASH CONTROLLER ++M: Viresh Kumar <vireshk@kernel.org> ++L: linux-ide@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git ++F: drivers/ata/pata_arasan_cf.c ++F: include/linux/pata_arasan_cf_data.h ++ ++LIBATA PATA FARADAY FTIDE010 AND GEMINI SATA BRIDGE DRIVERS ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-ide@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git ++F: drivers/ata/pata_ftide010.c ++F: drivers/ata/sata_gemini.c ++F: drivers/ata/sata_gemini.h ++ ++LIBATA SATA AHCI PLATFORM devices support ++M: Hans de Goede <hdegoede@redhat.com> ++M: Jens Axboe <axboe@kernel.dk> ++L: linux-ide@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git ++F: drivers/ata/ahci_platform.c ++F: drivers/ata/libahci_platform.c ++F: include/linux/ahci_platform.h ++ ++LIBATA SATA PROMISE TX2/TX4 CONTROLLER DRIVER ++M: Mikael Pettersson <mikpelinux@gmail.com> ++L: linux-ide@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git ++F: drivers/ata/sata_promise.* ++ ++LIBATA SUBSYSTEM (Serial and Parallel ATA drivers) ++M: Damien Le Moal <damien.lemoal@opensource.wdc.com> ++L: linux-ide@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata.git ++F: Documentation/devicetree/bindings/ata/ ++F: drivers/ata/ ++F: include/linux/ata.h ++F: include/linux/libata.h ++ ++LIBLOCKDEP ++M: Sasha Levin <alexander.levin@microsoft.com> ++S: Maintained ++F: tools/lib/lockdep/ ++ ++LIBNVDIMM BLK: MMIO-APERTURE DRIVER ++M: Dan Williams <dan.j.williams@intel.com> ++M: Vishal Verma <vishal.l.verma@intel.com> ++M: Dave Jiang <dave.jiang@intel.com> ++L: nvdimm@lists.linux.dev ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-nvdimm/list/ ++P: Documentation/nvdimm/maintainer-entry-profile.rst ++F: drivers/nvdimm/blk.c ++F: drivers/nvdimm/region_devs.c ++ ++LIBNVDIMM BTT: BLOCK TRANSLATION TABLE ++M: Vishal Verma <vishal.l.verma@intel.com> ++M: Dan Williams <dan.j.williams@intel.com> ++M: Dave Jiang <dave.jiang@intel.com> ++L: nvdimm@lists.linux.dev ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-nvdimm/list/ ++P: Documentation/nvdimm/maintainer-entry-profile.rst ++F: drivers/nvdimm/btt* ++ ++LIBNVDIMM PMEM: PERSISTENT MEMORY DRIVER ++M: Dan Williams <dan.j.williams@intel.com> ++M: Vishal Verma <vishal.l.verma@intel.com> ++M: Dave Jiang <dave.jiang@intel.com> ++L: nvdimm@lists.linux.dev ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-nvdimm/list/ ++P: Documentation/nvdimm/maintainer-entry-profile.rst ++F: drivers/nvdimm/pmem* ++ ++LIBNVDIMM: DEVICETREE BINDINGS ++M: Oliver O'Halloran <oohall@gmail.com> ++L: nvdimm@lists.linux.dev ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-nvdimm/list/ ++F: Documentation/devicetree/bindings/pmem/pmem-region.txt ++F: drivers/nvdimm/of_pmem.c ++ ++LIBNVDIMM: NON-VOLATILE MEMORY DEVICE SUBSYSTEM ++M: Dan Williams <dan.j.williams@intel.com> ++M: Vishal Verma <vishal.l.verma@intel.com> ++M: Dave Jiang <dave.jiang@intel.com> ++M: Ira Weiny <ira.weiny@intel.com> ++L: nvdimm@lists.linux.dev ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-nvdimm/list/ ++P: Documentation/nvdimm/maintainer-entry-profile.rst ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git ++F: drivers/acpi/nfit/* ++F: drivers/nvdimm/* ++F: include/linux/libnvdimm.h ++F: include/linux/nd.h ++F: include/uapi/linux/ndctl.h ++F: tools/testing/nvdimm/ ++ ++LICENSES and SPDX stuff ++M: Thomas Gleixner <tglx@linutronix.de> ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++L: linux-spdx@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx.git ++F: COPYING ++F: Documentation/process/license-rules.rst ++F: LICENSES/ ++F: scripts/spdxcheck-test.sh ++F: scripts/spdxcheck.py ++ ++LINEAR RANGES HELPERS ++M: Mark Brown <broonie@kernel.org> ++R: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> ++F: lib/linear_ranges.c ++F: lib/test_linear_ranges.c ++F: include/linux/linear_range.h ++ ++LINUX FOR POWER MACINTOSH ++M: Benjamin Herrenschmidt <benh@kernel.crashing.org> ++L: linuxppc-dev@lists.ozlabs.org ++S: Odd Fixes ++F: arch/powerpc/platforms/powermac/ ++F: drivers/macintosh/ ++ ++LINUX FOR POWERPC (32-BIT AND 64-BIT) ++M: Michael Ellerman <mpe@ellerman.id.au> ++R: Benjamin Herrenschmidt <benh@kernel.crashing.org> ++R: Paul Mackerras <paulus@samba.org> ++L: linuxppc-dev@lists.ozlabs.org ++S: Supported ++W: https://github.com/linuxppc/wiki/wiki ++Q: http://patchwork.ozlabs.org/project/linuxppc-dev/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git ++F: Documentation/ABI/stable/sysfs-firmware-opal-* ++F: Documentation/devicetree/bindings/i2c/i2c-opal.txt ++F: Documentation/devicetree/bindings/powerpc/ ++F: Documentation/devicetree/bindings/rtc/rtc-opal.txt ++F: Documentation/powerpc/ ++F: arch/powerpc/ ++F: drivers/*/*/*pasemi* ++F: drivers/*/*pasemi* ++F: drivers/char/tpm/tpm_ibmvtpm* ++F: drivers/crypto/nx/ ++F: drivers/crypto/vmx/ ++F: drivers/i2c/busses/i2c-opal.c ++F: drivers/net/ethernet/ibm/ibmveth.* ++F: drivers/net/ethernet/ibm/ibmvnic.* ++F: drivers/pci/hotplug/pnv_php.c ++F: drivers/pci/hotplug/rpa* ++F: drivers/rtc/rtc-opal.c ++F: drivers/scsi/ibmvscsi/ ++F: drivers/tty/hvc/hvc_opal.c ++F: drivers/watchdog/wdrtas.c ++F: tools/testing/selftests/powerpc ++N: /pmac ++N: powermac ++N: powernv ++N: [^a-z0-9]ps3 ++N: pseries ++ ++LINUX FOR POWERPC EMBEDDED MPC5XXX ++M: Anatolij Gustschin <agust@denx.de> ++L: linuxppc-dev@lists.ozlabs.org ++S: Odd Fixes ++F: arch/powerpc/platforms/512x/ ++F: arch/powerpc/platforms/52xx/ ++ ++LINUX FOR POWERPC EMBEDDED PPC4XX ++L: linuxppc-dev@lists.ozlabs.org ++S: Orphan ++F: arch/powerpc/platforms/40x/ ++F: arch/powerpc/platforms/44x/ ++ ++LINUX FOR POWERPC EMBEDDED PPC83XX AND PPC85XX ++M: Scott Wood <oss@buserror.net> ++L: linuxppc-dev@lists.ozlabs.org ++S: Odd fixes ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux.git ++F: Documentation/devicetree/bindings/powerpc/fsl/ ++F: arch/powerpc/platforms/83xx/ ++F: arch/powerpc/platforms/85xx/ ++ ++LINUX FOR POWERPC EMBEDDED PPC8XX ++M: Christophe Leroy <christophe.leroy@csgroup.eu> ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: arch/powerpc/platforms/8xx/ ++ ++LINUX KERNEL DUMP TEST MODULE (LKDTM) ++M: Kees Cook <keescook@chromium.org> ++S: Maintained ++F: drivers/misc/lkdtm/* ++F: tools/testing/selftests/lkdtm/* ++ ++LINUX KERNEL MEMORY CONSISTENCY MODEL (LKMM) ++M: Alan Stern <stern@rowland.harvard.edu> ++M: Andrea Parri <parri.andrea@gmail.com> ++M: Will Deacon <will@kernel.org> ++M: Peter Zijlstra <peterz@infradead.org> ++M: Boqun Feng <boqun.feng@gmail.com> ++M: Nicholas Piggin <npiggin@gmail.com> ++M: David Howells <dhowells@redhat.com> ++M: Jade Alglave <j.alglave@ucl.ac.uk> ++M: Luc Maranget <luc.maranget@inria.fr> ++M: "Paul E. McKenney" <paulmck@kernel.org> ++R: Akira Yokosawa <akiyks@gmail.com> ++R: Daniel Lustig <dlustig@nvidia.com> ++R: Joel Fernandes <joel@joelfernandes.org> ++L: linux-kernel@vger.kernel.org ++L: linux-arch@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev ++F: Documentation/atomic_bitops.txt ++F: Documentation/atomic_t.txt ++F: Documentation/core-api/refcount-vs-atomic.rst ++F: Documentation/litmus-tests/ ++F: Documentation/memory-barriers.txt ++F: tools/memory-model/ ++ ++LIS3LV02D ACCELEROMETER DRIVER ++M: Eric Piel <eric.piel@tremplin-utc.net> ++S: Maintained ++F: Documentation/misc-devices/lis3lv02d.rst ++F: drivers/misc/lis3lv02d/ ++F: drivers/platform/x86/hp_accel.c ++ ++LIST KUNIT TEST ++M: David Gow <davidgow@google.com> ++L: linux-kselftest@vger.kernel.org ++L: kunit-dev@googlegroups.com ++S: Maintained ++F: lib/list-test.c ++ ++LITEX PLATFORM ++M: Karol Gugala <kgugala@antmicro.com> ++M: Mateusz Holenko <mholenko@antmicro.com> ++S: Maintained ++F: Documentation/devicetree/bindings/*/litex,*.yaml ++F: arch/openrisc/boot/dts/or1klitex.dts ++F: drivers/soc/litex/litex_soc_ctrl.c ++F: drivers/tty/serial/liteuart.c ++F: include/linux/litex.h ++ ++LIVE PATCHING ++M: Josh Poimboeuf <jpoimboe@redhat.com> ++M: Jiri Kosina <jikos@kernel.org> ++M: Miroslav Benes <mbenes@suse.cz> ++M: Petr Mladek <pmladek@suse.com> ++R: Joe Lawrence <joe.lawrence@redhat.com> ++L: live-patching@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching.git ++F: Documentation/ABI/testing/sysfs-kernel-livepatch ++F: Documentation/livepatch/ ++F: arch/powerpc/include/asm/livepatch.h ++F: arch/s390/include/asm/livepatch.h ++F: arch/x86/include/asm/livepatch.h ++F: include/linux/livepatch.h ++F: kernel/livepatch/ ++F: lib/livepatch/ ++F: samples/livepatch/ ++F: tools/testing/selftests/livepatch/ ++ ++LLC (802.2) ++L: netdev@vger.kernel.org ++S: Odd fixes ++F: include/linux/llc.h ++F: include/net/llc* ++F: include/uapi/linux/llc.h ++F: net/llc/ ++ ++LM73 HARDWARE MONITOR DRIVER ++M: Guillaume Ligneul <guillaume.ligneul@gmail.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: drivers/hwmon/lm73.c ++ ++LM78 HARDWARE MONITOR DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/lm78.rst ++F: drivers/hwmon/lm78.c ++ ++LM83 HARDWARE MONITOR DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/lm83.rst ++F: drivers/hwmon/lm83.c ++ ++LM90 HARDWARE MONITOR DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/hwmon/lm90.txt ++F: Documentation/hwmon/lm90.rst ++F: drivers/hwmon/lm90.c ++F: include/dt-bindings/thermal/lm90.h ++ ++LM95234 HARDWARE MONITOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/lm95234.rst ++F: drivers/hwmon/lm95234.c ++ ++LME2510 MEDIA DRIVER ++M: Malcolm Priestley <tvboxspy@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/usb/dvb-usb-v2/lmedm04* ++ ++LOADPIN SECURITY MODULE ++M: Kees Cook <keescook@chromium.org> ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git lsm/loadpin ++F: Documentation/admin-guide/LSM/LoadPin.rst ++F: security/loadpin/ ++ ++LOCKING PRIMITIVES ++M: Peter Zijlstra <peterz@infradead.org> ++M: Ingo Molnar <mingo@redhat.com> ++M: Will Deacon <will@kernel.org> ++R: Waiman Long <longman@redhat.com> ++R: Boqun Feng <boqun.feng@gmail.com> (LOCKDEP) ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core ++F: Documentation/locking/ ++F: arch/*/include/asm/spinlock*.h ++F: include/linux/lockdep.h ++F: include/linux/mutex*.h ++F: include/linux/rwlock*.h ++F: include/linux/rwsem*.h ++F: include/linux/seqlock.h ++F: include/linux/spinlock*.h ++F: kernel/locking/ ++F: lib/locking*.[ch] ++X: kernel/locking/locktorture.c ++ ++LOGICAL DISK MANAGER SUPPORT (LDM, Windows 2000/XP/Vista Dynamic Disks) ++M: "Richard Russon (FlatCap)" <ldm@flatcap.org> ++L: linux-ntfs-dev@lists.sourceforge.net ++S: Maintained ++W: http://www.linux-ntfs.org/content/view/19/37/ ++F: Documentation/admin-guide/ldm.rst ++F: block/partitions/ldm.* ++ ++LOGITECH HID GAMING KEYBOARDS ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git ++F: drivers/hid/hid-lg-g15.c ++ ++LONTIUM LT8912B MIPI TO HDMI BRIDGE ++M: Adrien Grassein <adrien.grassein@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml ++F: drivers/gpu/drm/bridge/lontium-lt8912b.c ++ ++LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) ++M: Sathya Prakash <sathya.prakash@broadcom.com> ++M: Sreekanth Reddy <sreekanth.reddy@broadcom.com> ++M: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com> ++L: MPT-FusionLinux.pdl@broadcom.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++W: http://www.avagotech.com/support/ ++F: drivers/message/fusion/ ++F: drivers/scsi/mpt3sas/ ++ ++LSILOGIC/SYMBIOS/NCR 53C8XX and 53C1010 PCI-SCSI drivers ++M: Matthew Wilcox <willy@infradead.org> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: drivers/scsi/sym53c8xx_2/ ++ ++LTC1660 DAC DRIVER ++M: Marcus Folkesson <marcus.folkesson@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml ++F: drivers/iio/dac/ltc1660.c ++ ++LTC2947 HARDWARE MONITOR DRIVER ++M: Nuno Sá <nuno.sa@analog.com> ++L: linux-hwmon@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/hwmon/adi,ltc2947.yaml ++F: drivers/hwmon/ltc2947-core.c ++F: drivers/hwmon/ltc2947-i2c.c ++F: drivers/hwmon/ltc2947-spi.c ++F: drivers/hwmon/ltc2947.h ++ ++LTC2983 IIO TEMPERATURE DRIVER ++M: Nuno Sá <nuno.sa@analog.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml ++F: drivers/iio/temperature/ltc2983.c ++ ++LTC4261 HARDWARE MONITOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/ltc4261.rst ++F: drivers/hwmon/ltc4261.c ++ ++LTC4306 I2C MULTIPLEXER DRIVER ++M: Michael Hennerich <michael.hennerich@analog.com> ++L: linux-i2c@vger.kernel.org ++S: Supported ++W: http://ez.analog.com/community/linux-device-drivers ++F: Documentation/devicetree/bindings/i2c/i2c-mux-ltc4306.txt ++F: drivers/i2c/muxes/i2c-mux-ltc4306.c ++ ++LTP (Linux Test Project) ++M: Mike Frysinger <vapier@gentoo.org> ++M: Cyril Hrubis <chrubis@suse.cz> ++M: Wanlong Gao <wanlong.gao@gmail.com> ++M: Jan Stancek <jstancek@redhat.com> ++M: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com> ++M: Alexey Kodanev <alexey.kodanev@oracle.com> ++L: ltp@lists.linux.it (subscribers-only) ++S: Maintained ++W: http://linux-test-project.github.io/ ++T: git git://github.com/linux-test-project/ltp.git ++ ++LYNX PCS MODULE ++M: Ioana Ciornei <ioana.ciornei@nxp.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/pcs/pcs-lynx.c ++F: include/linux/pcs-lynx.h ++ ++M68K ARCHITECTURE ++M: Geert Uytterhoeven <geert@linux-m68k.org> ++L: linux-m68k@lists.linux-m68k.org ++S: Maintained ++W: http://www.linux-m68k.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git ++F: arch/m68k/ ++F: drivers/zorro/ ++ ++M68K ON APPLE MACINTOSH ++M: Joshua Thompson <funaho@jurai.org> ++L: linux-m68k@lists.linux-m68k.org ++S: Maintained ++W: http://www.mac.linux-m68k.org/ ++F: arch/m68k/mac/ ++F: drivers/macintosh/adb-iop.c ++F: drivers/macintosh/via-macii.c ++ ++M68K ON HP9000/300 ++M: Philip Blundell <philb@gnu.org> ++S: Maintained ++W: http://www.tazenda.demon.co.uk/phil/linux-hp ++F: arch/m68k/hp300/ ++ ++M88DS3103 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/m88ds3103* ++ ++M88RS2000 MEDIA DRIVER ++M: Malcolm Priestley <tvboxspy@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/dvb-frontends/m88rs2000* ++ ++MA901 MASTERKIT USB FM RADIO DRIVER ++M: Alexey Klimov <klimov.linux@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-ma901.c ++ ++MAC80211 ++M: Johannes Berg <johannes@sipsolutions.net> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++W: https://wireless.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git ++F: Documentation/networking/mac80211-injection.rst ++F: Documentation/networking/mac80211_hwsim/mac80211_hwsim.rst ++F: drivers/net/wireless/mac80211_hwsim.[ch] ++F: include/net/mac80211.h ++F: net/mac80211/ ++ ++MAILBOX API ++M: Jassi Brar <jassisinghbrar@gmail.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/mailbox/ ++F: include/linux/mailbox_client.h ++F: include/linux/mailbox_controller.h ++F: include/dt-bindings/mailbox/ ++F: Documentation/devicetree/bindings/mailbox/ ++ ++MAILBOX ARM MHUv2 ++M: Viresh Kumar <viresh.kumar@linaro.org> ++M: Tushar Khandelwal <Tushar.Khandelwal@arm.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/mailbox/arm_mhuv2.c ++F: include/linux/mailbox/arm_mhuv2_message.h ++F: Documentation/devicetree/bindings/mailbox/arm,mhuv2.yaml ++ ++MANAGEMENT COMPONENT TRANSPORT PROTOCOL (MCTP) ++M: Jeremy Kerr <jk@codeconstruct.com.au> ++M: Matt Johnston <matt@codeconstruct.com.au> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/networking/mctp.rst ++F: drivers/net/mctp/ ++F: include/net/mctp.h ++F: include/net/mctpdevice.h ++F: include/net/netns/mctp.h ++F: net/mctp/ ++ ++MAN-PAGES: MANUAL PAGES FOR LINUX -- Sections 2, 3, 4, 5, and 7 ++M: Michael Kerrisk <mtk.manpages@gmail.com> ++L: linux-man@vger.kernel.org ++S: Maintained ++W: http://www.kernel.org/doc/man-pages ++ ++MARDUK (CREATOR CI40) DEVICE TREE SUPPORT ++M: Rahul Bedarkar <rahulbedarkar89@gmail.com> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: arch/mips/boot/dts/img/pistachio* ++ ++MARVELL 88E6XXX ETHERNET SWITCH FABRIC DRIVER ++M: Andrew Lunn <andrew@lunn.ch> ++M: Vivien Didelot <vivien.didelot@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/dsa/marvell.txt ++F: Documentation/networking/devlink/mv88e6xxx.rst ++F: drivers/net/dsa/mv88e6xxx/ ++F: include/linux/dsa/mv88e6xxx.h ++F: include/linux/platform_data/mv88e6xxx.h ++ ++MARVELL ARMADA 3700 PHY DRIVERS ++M: Miquel Raynal <miquel.raynal@bootlin.com> ++S: Maintained ++F: Documentation/devicetree/bindings/phy/phy-mvebu-comphy.txt ++F: Documentation/devicetree/bindings/phy/marvell,armada-3700-utmi-phy.yaml ++F: drivers/phy/marvell/phy-mvebu-a3700-comphy.c ++F: drivers/phy/marvell/phy-mvebu-a3700-utmi.c ++ ++MARVELL ARMADA DRM SUPPORT ++M: Russell King <linux@armlinux.org.uk> ++S: Maintained ++T: git git://git.armlinux.org.uk/~rmk/linux-arm.git drm-armada-devel ++T: git git://git.armlinux.org.uk/~rmk/linux-arm.git drm-armada-fixes ++F: Documentation/devicetree/bindings/display/armada/ ++F: drivers/gpu/drm/armada/ ++F: include/uapi/drm/armada_drm.h ++ ++MARVELL CRYPTO DRIVER ++M: Boris Brezillon <bbrezillon@kernel.org> ++M: Arnaud Ebalard <arno@natisbad.org> ++M: Srujana Challa <schalla@marvell.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: drivers/crypto/marvell/ ++F: include/linux/soc/marvell/octeontx2/ ++ ++MARVELL GIGABIT ETHERNET DRIVERS (skge/sky2) ++M: Mirko Lindner <mlindner@marvell.com> ++M: Stephen Hemminger <stephen@networkplumber.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/marvell/sk* ++ ++MARVELL LIBERTAS WIRELESS DRIVER ++L: libertas-dev@lists.infradead.org ++S: Orphan ++F: drivers/net/wireless/marvell/libertas/ ++ ++MARVELL MACCHIATOBIN SUPPORT ++M: Russell King <linux@armlinux.org.uk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts ++ ++MARVELL MV643XX ETHERNET DRIVER ++M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/marvell/mv643xx_eth.* ++F: include/linux/mv643xx.h ++ ++MARVELL MV88X3310 PHY DRIVER ++M: Russell King <linux@armlinux.org.uk> ++M: Marek Behún <kabel@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/phy/marvell10g.c ++ ++MARVELL MVEBU THERMAL DRIVER ++M: Miquel Raynal <miquel.raynal@bootlin.com> ++S: Maintained ++F: drivers/thermal/armada_thermal.c ++ ++MARVELL MVNETA ETHERNET DRIVER ++M: Thomas Petazzoni <thomas.petazzoni@bootlin.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/marvell/mvneta.* ++ ++MARVELL MVPP2 ETHERNET DRIVER ++M: Marcin Wojtas <mw@semihalf.com> ++M: Russell King <linux@armlinux.org.uk> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/marvell-pp2.txt ++F: drivers/net/ethernet/marvell/mvpp2/ ++ ++MARVELL MWIFIEX WIRELESS DRIVER ++M: Amitkumar Karwar <amitkarwar@gmail.com> ++M: Ganapathi Bhat <ganapathi017@gmail.com> ++M: Sharvari Harisangam <sharvari.harisangam@nxp.com> ++M: Xinming Hu <huxinming820@gmail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/net/wireless/marvell/mwifiex/ ++ ++MARVELL MWL8K WIRELESS DRIVER ++M: Lennert Buytenhek <buytenh@wantstofly.org> ++L: linux-wireless@vger.kernel.org ++S: Odd Fixes ++F: drivers/net/wireless/marvell/mwl8k.c ++ ++MARVELL NAND CONTROLLER DRIVER ++M: Miquel Raynal <miquel.raynal@bootlin.com> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/mtd/marvell-nand.txt ++F: drivers/mtd/nand/raw/marvell_nand.c ++ ++MARVELL OCTEONTX2 PHYSICAL FUNCTION DRIVER ++M: Sunil Goutham <sgoutham@marvell.com> ++M: Geetha sowjanya <gakula@marvell.com> ++M: Subbaraya Sundeep <sbhatta@marvell.com> ++M: hariprasad <hkelam@marvell.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/marvell/octeontx2/nic/ ++F: include/linux/soc/marvell/octeontx2/ ++ ++MARVELL OCTEONTX2 RVU ADMIN FUNCTION DRIVER ++M: Sunil Goutham <sgoutham@marvell.com> ++M: Linu Cherian <lcherian@marvell.com> ++M: Geetha sowjanya <gakula@marvell.com> ++M: Jerin Jacob <jerinj@marvell.com> ++M: hariprasad <hkelam@marvell.com> ++M: Subbaraya Sundeep <sbhatta@marvell.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst ++F: drivers/net/ethernet/marvell/octeontx2/af/ ++ ++MARVELL PRESTERA ETHERNET SWITCH DRIVER ++M: Taras Chornyi <tchornyi@marvell.com> ++S: Supported ++W: https://github.com/Marvell-switching/switchdev-prestera ++F: drivers/net/ethernet/marvell/prestera/ ++ ++MARVELL SOC MMC/SD/SDIO CONTROLLER DRIVER ++M: Nicolas Pitre <nico@fluxnic.net> ++S: Odd Fixes ++F: drivers/mmc/host/mvsdio.* ++ ++MARVELL USB MDIO CONTROLLER DRIVER ++M: Tobias Waldekranz <tobias@waldekranz.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/marvell,mvusb.yaml ++F: drivers/net/mdio/mdio-mvusb.c ++ ++MARVELL XENON MMC/SD/SDIO HOST CONTROLLER DRIVER ++M: Hu Ziji <huziji@marvell.com> ++L: linux-mmc@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt ++F: drivers/mmc/host/sdhci-xenon* ++ ++MATROX FRAMEBUFFER DRIVER ++L: linux-fbdev@vger.kernel.org ++S: Orphan ++F: drivers/video/fbdev/matrox/matroxfb_* ++F: include/uapi/linux/matroxfb.h ++ ++MAX15301 DRIVER ++M: Daniel Nilsson <daniel.nilsson@flex.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/max15301.rst ++F: drivers/hwmon/pmbus/max15301.c ++ ++MAX16065 HARDWARE MONITOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/max16065.rst ++F: drivers/hwmon/max16065.c ++ ++MAX2175 SDR TUNER DRIVER ++M: Ramesh Shanmugasundaram <rashanmu@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/max2175.txt ++F: Documentation/userspace-api/media/drivers/max2175.rst ++F: drivers/media/i2c/max2175* ++F: include/uapi/linux/max2175.h ++ ++MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER ++L: linux-hwmon@vger.kernel.org ++S: Orphan ++F: Documentation/hwmon/max6650.rst ++F: drivers/hwmon/max6650.c ++ ++MAX6697 HARDWARE MONITOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/hwmon/max6697.txt ++F: Documentation/hwmon/max6697.rst ++F: drivers/hwmon/max6697.c ++F: include/linux/platform_data/max6697.h ++ ++MAX9286 QUAD GMSL DESERIALIZER DRIVER ++M: Jacopo Mondi <jacopo+renesas@jmondi.org> ++M: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> ++M: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> ++M: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml ++F: drivers/media/i2c/max9286.c ++ ++MAX9860 MONO AUDIO VOICE CODEC DRIVER ++M: Peter Rosin <peda@axentia.se> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/sound/max9860.txt ++F: sound/soc/codecs/max9860.* ++ ++MAXBOTIX ULTRASONIC RANGER IIO DRIVER ++M: Andreas Klinger <ak@it-klinger.de> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/proximity/maxbotix,mb1232.yaml ++F: drivers/iio/proximity/mb1232.c ++ ++MAXIM MAX77650 PMIC MFD DRIVER ++M: Bartosz Golaszewski <brgl@bgdev.pl> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/*/*max77650.yaml ++F: Documentation/devicetree/bindings/*/max77650*.yaml ++F: drivers/gpio/gpio-max77650.c ++F: drivers/input/misc/max77650-onkey.c ++F: drivers/leds/leds-max77650.c ++F: drivers/mfd/max77650.c ++F: drivers/power/supply/max77650-charger.c ++F: drivers/regulator/max77650-regulator.c ++F: include/linux/mfd/max77650.h ++ ++MAXIM MAX77802 PMIC REGULATOR DEVICE DRIVER ++M: Javier Martinez Canillas <javier@dowhile0.org> ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/*/*max77802.txt ++F: drivers/regulator/max77802-regulator.c ++F: include/dt-bindings/*/*max77802.h ++ ++MAXIM MUIC CHARGER DRIVERS FOR EXYNOS BASED BOARDS ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> ++L: linux-pm@vger.kernel.org ++S: Supported ++F: drivers/power/supply/max14577_charger.c ++F: drivers/power/supply/max77693_charger.c ++ ++MAXIM PMIC AND MUIC DRIVERS FOR EXYNOS BASED BOARDS ++M: Chanwoo Choi <cw00.choi@samsung.com> ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/*/max77686.txt ++F: Documentation/devicetree/bindings/clock/maxim,max77686.txt ++F: Documentation/devicetree/bindings/mfd/max14577.txt ++F: Documentation/devicetree/bindings/mfd/max77693.txt ++F: drivers/*/max14577*.c ++F: drivers/*/max77686*.c ++F: drivers/*/max77693*.c ++F: drivers/clk/clk-max77686.c ++F: drivers/extcon/extcon-max14577.c ++F: drivers/extcon/extcon-max77693.c ++F: drivers/rtc/rtc-max77686.c ++F: include/linux/mfd/max14577*.h ++F: include/linux/mfd/max77686*.h ++F: include/linux/mfd/max77693*.h ++ ++MAXIRADIO FM RADIO RECEIVER DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-maxiradio* ++ ++MAXLINEAR ETHERNET PHY DRIVER ++M: Xu Liang <lxu@maxlinear.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/phy/mxl-gpy.c ++ ++MCBA MICROCHIP CAN BUS ANALYZER TOOL DRIVER ++R: Yasushi SHOJI <yashi@spacecubics.com> ++L: linux-can@vger.kernel.org ++S: Maintained ++F: drivers/net/can/usb/mcba_usb.c ++ ++MCAN MMIO DEVICE DRIVER ++M: Chandrasekar Ramakrishnan <rcsekar@samsung.com> ++L: linux-can@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/can/bosch,m_can.yaml ++F: drivers/net/can/m_can/m_can.c ++F: drivers/net/can/m_can/m_can.h ++F: drivers/net/can/m_can/m_can_platform.c ++ ++MCP2221A MICROCHIP USB-HID TO I2C BRIDGE DRIVER ++M: Rishi Gupta <gupt21@gmail.com> ++L: linux-i2c@vger.kernel.org ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/hid/hid-mcp2221.c ++ ++MCP251XFD SPI-CAN NETWORK DRIVER ++M: Marc Kleine-Budde <mkl@pengutronix.de> ++M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ++R: Thomas Kopp <thomas.kopp@microchip.com> ++L: linux-can@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml ++F: drivers/net/can/spi/mcp251xfd/ ++ ++MCP4018 AND MCP4531 MICROCHIP DIGITAL POTENTIOMETER DRIVERS ++M: Peter Rosin <peda@axentia.se> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-bus-iio-potentiometer-mcp4531 ++F: drivers/iio/potentiometer/mcp4018.c ++F: drivers/iio/potentiometer/mcp4531.c ++ ++MCR20A IEEE-802.15.4 RADIO DRIVER ++M: Xue Liu <liuxuenetmail@gmail.com> ++L: linux-wpan@vger.kernel.org ++S: Maintained ++W: https://github.com/xueliu/mcr20a-linux ++F: Documentation/devicetree/bindings/net/ieee802154/mcr20a.txt ++F: drivers/net/ieee802154/mcr20a.c ++F: drivers/net/ieee802154/mcr20a.h ++ ++MEASUREMENT COMPUTING CIO-DAC IIO DRIVER ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: drivers/iio/dac/cio-dac.c ++ ++MEDIA CONTROLLER FRAMEWORK ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://www.linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/mc/ ++F: include/media/media-*.h ++F: include/uapi/linux/media.h ++ ++MEDIA DRIVER FOR FREESCALE IMX PXP ++M: Philipp Zabel <p.zabel@pengutronix.de> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/platform/imx-pxp.[ch] ++ ++MEDIA DRIVERS FOR ASCOT2E ++M: Sergey Kozlov <serjk@netup.ru> ++M: Abylay Ospan <aospan@netup.ru> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++W: http://netup.tv/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/ascot2e* ++ ++MEDIA DRIVERS FOR CXD2099AR CI CONTROLLERS ++M: Jasmin Jessich <jasmin@anw.at> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/cxd2099* ++ ++MEDIA DRIVERS FOR CXD2841ER ++M: Sergey Kozlov <serjk@netup.ru> ++M: Abylay Ospan <aospan@netup.ru> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++W: http://netup.tv/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/cxd2841er* ++ ++MEDIA DRIVERS FOR CXD2880 ++M: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com> ++L: linux-media@vger.kernel.org ++S: Supported ++W: http://linuxtv.org/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/cxd2880/* ++F: drivers/media/spi/cxd2880* ++ ++MEDIA DRIVERS FOR DIGITAL DEVICES PCIE DEVICES ++L: linux-media@vger.kernel.org ++S: Orphan ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/pci/ddbridge/* ++ ++MEDIA DRIVERS FOR FREESCALE IMX ++M: Steve Longerbeam <slongerbeam@gmail.com> ++M: Philipp Zabel <p.zabel@pengutronix.de> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/admin-guide/media/imx.rst ++F: Documentation/devicetree/bindings/media/imx.txt ++F: drivers/staging/media/imx/ ++F: include/linux/imx-media.h ++F: include/media/imx.h ++ ++MEDIA DRIVERS FOR FREESCALE IMX7 ++M: Rui Miguel Silva <rmfrfs@gmail.com> ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/admin-guide/media/imx7.rst ++F: Documentation/devicetree/bindings/media/nxp,imx7-csi.yaml ++F: Documentation/devicetree/bindings/media/nxp,imx7-mipi-csi2.yaml ++F: drivers/staging/media/imx/imx7-media-csi.c ++F: drivers/staging/media/imx/imx7-mipi-csis.c ++ ++MEDIA DRIVERS FOR HELENE ++M: Abylay Ospan <aospan@netup.ru> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++W: http://netup.tv/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/helene* ++ ++MEDIA DRIVERS FOR HORUS3A ++M: Sergey Kozlov <serjk@netup.ru> ++M: Abylay Ospan <aospan@netup.ru> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++W: http://netup.tv/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/horus3a* ++ ++MEDIA DRIVERS FOR LNBH25 ++M: Sergey Kozlov <serjk@netup.ru> ++M: Abylay Ospan <aospan@netup.ru> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++W: http://netup.tv/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/lnbh25* ++ ++MEDIA DRIVERS FOR MXL5XX TUNER DEMODULATORS ++L: linux-media@vger.kernel.org ++S: Orphan ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/mxl5xx* ++ ++MEDIA DRIVERS FOR NETUP PCI UNIVERSAL DVB devices ++M: Sergey Kozlov <serjk@netup.ru> ++M: Abylay Ospan <aospan@netup.ru> ++L: linux-media@vger.kernel.org ++S: Supported ++W: https://linuxtv.org ++W: http://netup.tv/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/pci/netup_unidvb/* ++ ++MEDIA DRIVERS FOR NVIDIA TEGRA - VDE ++M: Dmitry Osipenko <digetx@gmail.com> ++L: linux-media@vger.kernel.org ++L: linux-tegra@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt ++F: drivers/staging/media/tegra-vde/ ++ ++MEDIA DRIVERS FOR RENESAS - CEU ++M: Jacopo Mondi <jacopo@jmondi.org> ++L: linux-media@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/renesas,ceu.yaml ++F: drivers/media/platform/renesas-ceu.c ++F: include/media/drv-intf/renesas-ceu.h ++ ++MEDIA DRIVERS FOR RENESAS - DRIF ++M: Fabrizio Castro <fabrizio.castro.jz@renesas.com> ++L: linux-media@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/renesas,drif.yaml ++F: drivers/media/platform/rcar_drif.c ++ ++MEDIA DRIVERS FOR RENESAS - FCP ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/renesas,fcp.yaml ++F: drivers/media/platform/rcar-fcp.c ++F: include/media/rcar-fcp.h ++ ++MEDIA DRIVERS FOR RENESAS - FDP1 ++M: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> ++L: linux-media@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/renesas,fdp1.yaml ++F: drivers/media/platform/rcar_fdp1.c ++ ++MEDIA DRIVERS FOR RENESAS - VIN ++M: Niklas Söderlund <niklas.soderlund@ragnatech.se> ++L: linux-media@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/renesas,csi2.yaml ++F: Documentation/devicetree/bindings/media/renesas,isp.yaml ++F: Documentation/devicetree/bindings/media/renesas,vin.yaml ++F: drivers/media/platform/rcar-vin/ ++ ++MEDIA DRIVERS FOR RENESAS - VSP1 ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++M: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> ++L: linux-media@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/renesas,vsp1.yaml ++F: drivers/media/platform/vsp1/ ++ ++MEDIA DRIVERS FOR ST STV0910 DEMODULATOR ICs ++L: linux-media@vger.kernel.org ++S: Orphan ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/stv0910* ++ ++MEDIA DRIVERS FOR ST STV6111 TUNER ICs ++L: linux-media@vger.kernel.org ++S: Orphan ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/dvb-frontends/stv6111* ++ ++MEDIA DRIVERS FOR STM32 - DCMI ++M: Hugues Fruchet <hugues.fruchet@foss.st.com> ++L: linux-media@vger.kernel.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml ++F: drivers/media/platform/stm32/stm32-dcmi.c ++ ++MEDIA INPUT INFRASTRUCTURE (V4L/DVB) ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.kernel.org/project/linux-media/list/ ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/admin-guide/media/ ++F: Documentation/devicetree/bindings/media/ ++F: Documentation/driver-api/media/ ++F: Documentation/userspace-api/media/ ++F: drivers/media/ ++F: drivers/staging/media/ ++F: include/linux/platform_data/media/ ++F: include/media/ ++F: include/uapi/linux/dvb/ ++F: include/uapi/linux/ivtv* ++F: include/uapi/linux/media.h ++F: include/uapi/linux/meye.h ++F: include/uapi/linux/uvcvideo.h ++F: include/uapi/linux/v4l2-* ++F: include/uapi/linux/videodev2.h ++ ++MEDIATEK BLUETOOTH DRIVER ++M: Sean Wang <sean.wang@mediatek.com> ++L: linux-bluetooth@vger.kernel.org ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/net/mediatek-bluetooth.txt ++F: drivers/bluetooth/btmtkuart.c ++ ++MEDIATEK BOARD LEVEL SHUTDOWN DRIVERS ++M: Sean Wang <sean.wang@mediatek.com> ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt ++F: drivers/power/reset/mt6323-poweroff.c ++ ++MEDIATEK CIR DRIVER ++M: Sean Wang <sean.wang@mediatek.com> ++S: Maintained ++F: drivers/media/rc/mtk-cir.c ++ ++MEDIATEK DMA DRIVER ++M: Sean Wang <sean.wang@mediatek.com> ++L: dmaengine@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/dma/mtk-* ++F: drivers/dma/mediatek/ ++ ++MEDIATEK ETHERNET DRIVER ++M: Felix Fietkau <nbd@nbd.name> ++M: John Crispin <john@phrozen.org> ++M: Sean Wang <sean.wang@mediatek.com> ++M: Mark Lee <Mark-MC.Lee@mediatek.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/mediatek/ ++ ++MEDIATEK I2C CONTROLLER DRIVER ++M: Qii Wang <qii.wang@mediatek.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt ++F: drivers/i2c/busses/i2c-mt65xx.c ++ ++MEDIATEK IOMMU DRIVER ++M: Yong Wu <yong.wu@mediatek.com> ++L: iommu@lists.linux-foundation.org ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: Documentation/devicetree/bindings/iommu/mediatek* ++F: drivers/iommu/mtk_iommu* ++F: include/dt-bindings/memory/mt*-port.h ++ ++MEDIATEK JPEG DRIVER ++M: Rick Chang <rick.chang@mediatek.com> ++M: Bin Liu <bin.liu@mediatek.com> ++S: Supported ++F: Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt ++F: drivers/media/platform/mtk-jpeg/ ++ ++MEDIATEK MDP DRIVER ++M: Minghsiu Tsai <minghsiu.tsai@mediatek.com> ++M: Houlong Wei <houlong.wei@mediatek.com> ++M: Andrew-CT Chen <andrew-ct.chen@mediatek.com> ++S: Supported ++F: Documentation/devicetree/bindings/media/mediatek-mdp.txt ++F: drivers/media/platform/mtk-mdp/ ++F: drivers/media/platform/mtk-vpu/ ++ ++MEDIATEK MEDIA DRIVER ++M: Tiffany Lin <tiffany.lin@mediatek.com> ++M: Andrew-CT Chen <andrew-ct.chen@mediatek.com> ++S: Supported ++F: Documentation/devicetree/bindings/media/mediatek-vcodec.txt ++F: Documentation/devicetree/bindings/media/mediatek-vpu.txt ++F: drivers/media/platform/mtk-vcodec/ ++F: drivers/media/platform/mtk-vpu/ ++ ++MEDIATEK MMC/SD/SDIO DRIVER ++M: Chaotian Jing <chaotian.jing@mediatek.com> ++S: Maintained ++F: Documentation/devicetree/bindings/mmc/mtk-sd.yaml ++F: drivers/mmc/host/mtk-sd.c ++ ++MEDIATEK MT76 WIRELESS LAN DRIVER ++M: Felix Fietkau <nbd@nbd.name> ++M: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> ++R: Ryder Lee <ryder.lee@mediatek.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/net/wireless/mediatek/mt76/ ++ ++MEDIATEK MT7601U WIRELESS LAN DRIVER ++M: Jakub Kicinski <kubakici@wp.pl> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/net/wireless/mediatek/mt7601u/ ++ ++MEDIATEK MT7621 CLOCK DRIVER ++M: Sergio Paracuellos <sergio.paracuellos@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml ++F: drivers/clk/ralink/clk-mt7621.c ++ ++MEDIATEK MT7621/28/88 I2C DRIVER ++M: Stefan Roese <sr@denx.de> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-mt7621.txt ++F: drivers/i2c/busses/i2c-mt7621.c ++ ++MEDIATEK MT7621 PHY PCI DRIVER ++M: Sergio Paracuellos <sergio.paracuellos@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml ++F: drivers/phy/ralink/phy-mt7621-pci.c ++ ++MEDIATEK NAND CONTROLLER DRIVER ++L: linux-mtd@lists.infradead.org ++S: Orphan ++F: Documentation/devicetree/bindings/mtd/mtk-nand.txt ++F: drivers/mtd/nand/raw/mtk_* ++ ++MEDIATEK PMIC LED DRIVER ++M: Sean Wang <sean.wang@mediatek.com> ++S: Maintained ++F: Documentation/devicetree/bindings/leds/leds-mt6323.txt ++F: drivers/leds/leds-mt6323.c ++ ++MEDIATEK RANDOM NUMBER GENERATOR SUPPORT ++M: Sean Wang <sean.wang@mediatek.com> ++S: Maintained ++F: drivers/char/hw_random/mtk-rng.c ++ ++MEDIATEK SWITCH DRIVER ++M: Sean Wang <sean.wang@mediatek.com> ++M: Landen Chao <Landen.Chao@mediatek.com> ++M: DENG Qingfang <dqfext@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/dsa/mt7530.* ++F: net/dsa/tag_mtk.c ++ ++MEDIATEK USB3 DRD IP DRIVER ++M: Chunfeng Yun <chunfeng.yun@mediatek.com> ++L: linux-usb@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/usb/mediatek,* ++F: drivers/usb/host/xhci-mtk* ++F: drivers/usb/mtu3/ ++ ++MEGACHIPS STDPXXXX-GE-B850V3-FW LVDS/DP++ BRIDGES ++M: Peter Senna Tschudin <peter.senna@gmail.com> ++M: Martin Donnelly <martin.donnelly@ge.com> ++M: Martyn Welch <martyn.welch@collabora.co.uk> ++S: Maintained ++F: Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt ++F: drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c ++ ++MEGARAID SCSI/SAS DRIVERS ++M: Kashyap Desai <kashyap.desai@broadcom.com> ++M: Sumit Saxena <sumit.saxena@broadcom.com> ++M: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> ++L: megaraidlinux.pdl@broadcom.com ++L: linux-scsi@vger.kernel.org ++S: Maintained ++W: http://www.avagotech.com/support/ ++F: Documentation/scsi/megaraid.rst ++F: drivers/scsi/megaraid.* ++F: drivers/scsi/megaraid/ ++ ++MELEXIS MLX90614 DRIVER ++M: Crt Mori <cmo@melexis.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++W: http://www.melexis.com ++F: drivers/iio/temperature/mlx90614.c ++ ++MELEXIS MLX90632 DRIVER ++M: Crt Mori <cmo@melexis.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++W: http://www.melexis.com ++F: drivers/iio/temperature/mlx90632.c ++ ++MELFAS MIP4 TOUCHSCREEN DRIVER ++M: Sangwon Jee <jeesw@melfas.com> ++S: Supported ++W: http://www.melfas.com ++F: Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt ++F: drivers/input/touchscreen/melfas_mip4.c ++ ++MELLANOX BLUEFIELD I2C DRIVER ++M: Khalil Blaiech <kblaiech@nvidia.com> ++L: linux-i2c@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml ++F: drivers/i2c/busses/i2c-mlxbf.c ++ ++MELLANOX ETHERNET DRIVER (mlx4_en) ++M: Tariq Toukan <tariqt@nvidia.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.mellanox.com ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++F: drivers/net/ethernet/mellanox/mlx4/en_* ++ ++MELLANOX ETHERNET DRIVER (mlx5e) ++M: Saeed Mahameed <saeedm@nvidia.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.mellanox.com ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++F: drivers/net/ethernet/mellanox/mlx5/core/en_* ++ ++MELLANOX ETHERNET INNOVA DRIVERS ++R: Boris Pismenny <borisp@nvidia.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.mellanox.com ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++F: drivers/net/ethernet/mellanox/mlx5/core/accel/* ++F: drivers/net/ethernet/mellanox/mlx5/core/en_accel/* ++F: drivers/net/ethernet/mellanox/mlx5/core/fpga/* ++F: include/linux/mlx5/mlx5_ifc_fpga.h ++ ++MELLANOX ETHERNET SWITCH DRIVERS ++M: Jiri Pirko <jiri@nvidia.com> ++M: Ido Schimmel <idosch@nvidia.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.mellanox.com ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++F: drivers/net/ethernet/mellanox/mlxsw/ ++F: tools/testing/selftests/drivers/net/mlxsw/ ++ ++MELLANOX FIRMWARE FLASH LIBRARY (mlxfw) ++M: mlxsw@nvidia.com ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.mellanox.com ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++F: drivers/net/ethernet/mellanox/mlxfw/ ++ ++MELLANOX HARDWARE PLATFORM SUPPORT ++M: Hans de Goede <hdegoede@redhat.com> ++M: Mark Gross <mgross@linux.intel.com> ++M: Vadim Pasternak <vadimp@nvidia.com> ++L: platform-driver-x86@vger.kernel.org ++S: Supported ++F: Documentation/ABI/testing/sysfs-platform-mellanox-bootctl ++F: drivers/platform/mellanox/ ++F: include/linux/platform_data/mlxreg.h ++ ++MELLANOX MLX4 core VPI driver ++M: Tariq Toukan <tariqt@nvidia.com> ++L: netdev@vger.kernel.org ++L: linux-rdma@vger.kernel.org ++S: Supported ++W: http://www.mellanox.com ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++F: drivers/net/ethernet/mellanox/mlx4/ ++F: include/linux/mlx4/ ++ ++MELLANOX MLX4 IB driver ++M: Yishai Hadas <yishaih@nvidia.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++W: http://www.mellanox.com ++Q: http://patchwork.kernel.org/project/linux-rdma/list/ ++F: drivers/infiniband/hw/mlx4/ ++F: include/linux/mlx4/ ++F: include/uapi/rdma/mlx4-abi.h ++ ++MELLANOX MLX5 core VPI driver ++M: Saeed Mahameed <saeedm@nvidia.com> ++M: Leon Romanovsky <leonro@nvidia.com> ++L: netdev@vger.kernel.org ++L: linux-rdma@vger.kernel.org ++S: Supported ++W: http://www.mellanox.com ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++F: Documentation/networking/device_drivers/ethernet/mellanox/ ++F: drivers/net/ethernet/mellanox/mlx5/core/ ++F: include/linux/mlx5/ ++ ++MELLANOX MLX5 IB driver ++M: Leon Romanovsky <leonro@nvidia.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++W: http://www.mellanox.com ++Q: http://patchwork.kernel.org/project/linux-rdma/list/ ++F: drivers/infiniband/hw/mlx5/ ++F: include/linux/mlx5/ ++F: include/uapi/rdma/mlx5-abi.h ++ ++MELLANOX MLXCPLD I2C AND MUX DRIVER ++M: Vadim Pasternak <vadimp@nvidia.com> ++M: Michael Shych <michaelsh@nvidia.com> ++L: linux-i2c@vger.kernel.org ++S: Supported ++F: Documentation/i2c/busses/i2c-mlxcpld.rst ++F: drivers/i2c/busses/i2c-mlxcpld.c ++F: drivers/i2c/muxes/i2c-mux-mlxcpld.c ++ ++MELLANOX MLXCPLD LED DRIVER ++M: Vadim Pasternak <vadimp@nvidia.com> ++L: linux-leds@vger.kernel.org ++S: Supported ++F: Documentation/leds/leds-mlxcpld.rst ++F: drivers/leds/leds-mlxcpld.c ++F: drivers/leds/leds-mlxreg.c ++ ++MELLANOX PLATFORM DRIVER ++M: Vadim Pasternak <vadimp@nvidia.com> ++L: platform-driver-x86@vger.kernel.org ++S: Supported ++F: drivers/platform/x86/mlx-platform.c ++ ++MEMBARRIER SUPPORT ++M: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> ++M: "Paul E. McKenney" <paulmck@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: arch/powerpc/include/asm/membarrier.h ++F: include/uapi/linux/membarrier.h ++F: kernel/sched/membarrier.c ++ ++MEMBLOCK ++M: Mike Rapoport <rppt@linux.ibm.com> ++L: linux-mm@kvack.org ++S: Maintained ++F: Documentation/core-api/boot-time-mm.rst ++F: include/linux/memblock.h ++F: mm/memblock.c ++ ++MEMORY CONTROLLER DRIVERS ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl.git ++F: Documentation/devicetree/bindings/memory-controllers/ ++F: drivers/memory/ ++F: include/dt-bindings/memory/ ++F: include/memory/ ++ ++MEMORY FREQUENCY SCALING DRIVERS FOR NVIDIA TEGRA ++M: Dmitry Osipenko <digetx@gmail.com> ++L: linux-pm@vger.kernel.org ++L: linux-tegra@vger.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git ++S: Maintained ++F: drivers/devfreq/tegra30-devfreq.c ++ ++MEMORY MANAGEMENT ++M: Andrew Morton <akpm@linux-foundation.org> ++L: linux-mm@kvack.org ++S: Maintained ++W: http://www.linux-mm.org ++T: quilt https://ozlabs.org/~akpm/mmotm/ ++T: quilt https://ozlabs.org/~akpm/mmots/ ++T: git git://github.com/hnaz/linux-mm.git ++F: include/linux/gfp.h ++F: include/linux/memory_hotplug.h ++F: include/linux/mm.h ++F: include/linux/mmzone.h ++F: include/linux/pagewalk.h ++F: include/linux/vmalloc.h ++F: mm/ ++F: tools/testing/selftests/vm/ ++ ++MEMORY TECHNOLOGY DEVICES (MTD) ++M: Miquel Raynal <miquel.raynal@bootlin.com> ++M: Richard Weinberger <richard@nod.at> ++M: Vignesh Raghavendra <vigneshr@ti.com> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++W: http://www.linux-mtd.infradead.org/ ++Q: http://patchwork.ozlabs.org/project/linux-mtd/list/ ++C: irc://irc.oftc.net/mtd ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/fixes ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next ++F: Documentation/devicetree/bindings/mtd/ ++F: drivers/mtd/ ++F: include/linux/mtd/ ++F: include/uapi/mtd/ ++ ++MEN A21 WATCHDOG DRIVER ++M: Johannes Thumshirn <morbidrsa@gmail.com> ++L: linux-watchdog@vger.kernel.org ++S: Maintained ++F: drivers/watchdog/mena21_wdt.c ++ ++MEN CHAMELEON BUS (mcb) ++M: Johannes Thumshirn <morbidrsa@gmail.com> ++S: Maintained ++F: Documentation/driver-api/men-chameleon-bus.rst ++F: drivers/mcb/ ++F: include/linux/mcb.h ++ ++MEN F21BMC (Board Management Controller) ++M: Andreas Werner <andreas.werner@men.de> ++S: Supported ++F: Documentation/hwmon/menf21bmc.rst ++F: drivers/hwmon/menf21bmc_hwmon.c ++F: drivers/leds/leds-menf21bmc.c ++F: drivers/mfd/menf21bmc.c ++F: drivers/watchdog/menf21bmc_wdt.c ++ ++MEN Z069 WATCHDOG DRIVER ++M: Johannes Thumshirn <jth@kernel.org> ++L: linux-watchdog@vger.kernel.org ++S: Maintained ++F: drivers/watchdog/menz69_wdt.c ++ ++MESON AO CEC DRIVER FOR AMLOGIC SOCS ++M: Neil Armstrong <narmstrong@baylibre.com> ++L: linux-media@vger.kernel.org ++L: linux-amlogic@lists.infradead.org ++S: Supported ++W: http://linux-meson.com/ ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/amlogic,meson-gx-ao-cec.yaml ++F: drivers/media/cec/platform/meson/ao-cec-g12a.c ++F: drivers/media/cec/platform/meson/ao-cec.c ++ ++MESON GE2D DRIVER FOR AMLOGIC SOCS ++M: Neil Armstrong <narmstrong@baylibre.com> ++L: linux-media@vger.kernel.org ++L: linux-amlogic@lists.infradead.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/amlogic,axg-ge2d.yaml ++F: drivers/media/platform/meson/ge2d/ ++ ++MESON NAND CONTROLLER DRIVER FOR AMLOGIC SOCS ++M: Liang Yang <liang.yang@amlogic.com> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt ++F: drivers/mtd/nand/raw/meson_* ++ ++MESON VIDEO DECODER DRIVER FOR AMLOGIC SOCS ++M: Neil Armstrong <narmstrong@baylibre.com> ++L: linux-media@vger.kernel.org ++L: linux-amlogic@lists.infradead.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml ++F: drivers/staging/media/meson/vdec/ ++ ++METHODE UDPU SUPPORT ++M: Vladimir Vid <vladimir.vid@sartura.hr> ++S: Maintained ++F: arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts ++ ++MHI BUS ++M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ++M: Hemant Kumar <hemantk@codeaurora.org> ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi.git ++F: Documentation/ABI/stable/sysfs-bus-mhi ++F: Documentation/mhi/ ++F: drivers/bus/mhi/ ++F: include/linux/mhi.h ++ ++MICROBLAZE ARCHITECTURE ++M: Michal Simek <monstr@monstr.eu> ++S: Supported ++W: http://www.monstr.eu/fdt/ ++T: git git://git.monstr.eu/linux-2.6-microblaze.git ++F: arch/microblaze/ ++ ++MICROCHIP AT91 DMA DRIVERS ++M: Ludovic Desroches <ludovic.desroches@microchip.com> ++M: Tudor Ambarus <tudor.ambarus@microchip.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: dmaengine@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/dma/atmel-dma.txt ++F: drivers/dma/at_hdmac.c ++F: drivers/dma/at_hdmac_regs.h ++F: drivers/dma/at_xdmac.c ++F: include/dt-bindings/dma/at91.h ++ ++MICROCHIP AT91 SERIAL DRIVER ++M: Richard Genoud <richard.genoud@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/mfd/atmel-usart.txt ++F: drivers/tty/serial/atmel_serial.c ++F: drivers/tty/serial/atmel_serial.h ++ ++MICROCHIP AT91 USART MFD DRIVER ++M: Radu Pirea <radu_nicolae.pirea@upb.ro> ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/mfd/atmel-usart.txt ++F: drivers/mfd/at91-usart.c ++F: include/dt-bindings/mfd/at91-usart.h ++ ++MICROCHIP AT91 USART SPI DRIVER ++M: Radu Pirea <radu_nicolae.pirea@upb.ro> ++L: linux-spi@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/mfd/atmel-usart.txt ++F: drivers/spi/spi-at91-usart.c ++ ++MICROCHIP AUDIO ASOC DRIVERS ++M: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Supported ++F: sound/soc/atmel ++ ++MICROCHIP ECC DRIVER ++M: Tudor Ambarus <tudor.ambarus@microchip.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: drivers/crypto/atmel-ecc.* ++ ++MICROCHIP I2C DRIVER ++M: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> ++L: linux-i2c@vger.kernel.org ++S: Supported ++F: drivers/i2c/busses/i2c-at91-*.c ++F: drivers/i2c/busses/i2c-at91.h ++ ++MICROCHIP ISC DRIVER ++M: Eugen Hristev <eugen.hristev@microchip.com> ++L: linux-media@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/media/atmel,isc.yaml ++F: Documentation/devicetree/bindings/media/microchip,xisc.yaml ++F: drivers/media/platform/atmel/atmel-isc-base.c ++F: drivers/media/platform/atmel/atmel-isc-regs.h ++F: drivers/media/platform/atmel/atmel-isc.h ++F: drivers/media/platform/atmel/atmel-sama5d2-isc.c ++F: drivers/media/platform/atmel/atmel-sama7g5-isc.c ++F: include/linux/atmel-isc-media.h ++ ++MICROCHIP ISI DRIVER ++M: Eugen Hristev <eugen.hristev@microchip.com> ++L: linux-media@vger.kernel.org ++S: Supported ++F: drivers/media/platform/atmel/atmel-isi.c ++F: drivers/media/platform/atmel/atmel-isi.h ++ ++MICROCHIP KSZ SERIES ETHERNET SWITCH DRIVER ++M: Woojung Huh <woojung.huh@microchip.com> ++M: UNGLinuxDriver@microchip.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml ++F: drivers/net/dsa/microchip/* ++F: include/linux/platform_data/microchip-ksz.h ++F: net/dsa/tag_ksz.c ++ ++MICROCHIP LAN743X ETHERNET DRIVER ++M: Bryan Whitehead <bryan.whitehead@microchip.com> ++M: UNGLinuxDriver@microchip.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/microchip/lan743x_* ++ ++MICROCHIP LCDFB DRIVER ++M: Nicolas Ferre <nicolas.ferre@microchip.com> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/atmel_lcdfb.c ++F: include/video/atmel_lcdc.h ++ ++MICROCHIP MCP16502 PMIC DRIVER ++M: Claudiu Beznea <claudiu.beznea@microchip.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt ++F: drivers/regulator/mcp16502.c ++ ++MICROCHIP MCP3911 ADC DRIVER ++M: Marcus Folkesson <marcus.folkesson@gmail.com> ++M: Kent Gustavsson <kent@minoris.se> ++L: linux-iio@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml ++F: drivers/iio/adc/mcp3911.c ++ ++MICROCHIP MMC/SD/SDIO MCI DRIVER ++M: Ludovic Desroches <ludovic.desroches@microchip.com> ++S: Maintained ++F: drivers/mmc/host/atmel-mci.c ++ ++MICROCHIP NAND DRIVER ++M: Tudor Ambarus <tudor.ambarus@microchip.com> ++L: linux-mtd@lists.infradead.org ++S: Supported ++F: Documentation/devicetree/bindings/mtd/atmel-nand.txt ++F: drivers/mtd/nand/raw/atmel/* ++ ++MICROCHIP PWM DRIVER ++M: Claudiu Beznea <claudiu.beznea@microchip.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-pwm@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/pwm/atmel-pwm.txt ++F: drivers/pwm/pwm-atmel.c ++ ++MICROCHIP SAMA5D2-COMPATIBLE ADC DRIVER ++M: Eugen Hristev <eugen.hristev@microchip.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/iio/adc/atmel,sama5d2-adc.yaml ++F: drivers/iio/adc/at91-sama5d2_adc.c ++F: include/dt-bindings/iio/adc/at91-sama5d2_adc.h ++ ++MICROCHIP SAMA5D2-COMPATIBLE SHUTDOWN CONTROLLER ++M: Claudiu Beznea <claudiu.beznea@microchip.com> ++S: Supported ++F: drivers/power/reset/at91-sama5d2_shdwc.c ++ ++MICROCHIP SPI DRIVER ++M: Tudor Ambarus <tudor.ambarus@microchip.com> ++S: Supported ++F: drivers/spi/spi-atmel.* ++ ++MICROCHIP SSC DRIVER ++M: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: drivers/misc/atmel-ssc.c ++F: include/linux/atmel-ssc.h ++ ++MICROCHIP USB251XB DRIVER ++M: Richard Leitner <richard.leitner@skidata.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/usb/usb251xb.txt ++F: drivers/usb/misc/usb251xb.c ++ ++MICROCHIP USBA UDC DRIVER ++M: Cristian Birsan <cristian.birsan@microchip.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: drivers/usb/gadget/udc/atmel_usba_udc.* ++ ++MICROCHIP WILC1000 WIFI DRIVER ++M: Ajay Singh <ajay.kathat@microchip.com> ++M: Claudiu Beznea <claudiu.beznea@microchip.com> ++L: linux-wireless@vger.kernel.org ++S: Supported ++F: drivers/net/wireless/microchip/wilc1000/ ++ ++MICROSEMI MIPS SOCS ++M: Alexandre Belloni <alexandre.belloni@bootlin.com> ++M: UNGLinuxDriver@microchip.com ++L: linux-mips@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/mips/mscc.txt ++F: Documentation/devicetree/bindings/power/reset/ocelot-reset.txt ++F: arch/mips/boot/dts/mscc/ ++F: arch/mips/configs/generic/board-ocelot.config ++F: arch/mips/generic/board-ocelot.c ++ ++MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi) ++M: Don Brace <don.brace@microchip.com> ++L: storagedev@microchip.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: Documentation/scsi/smartpqi.rst ++F: drivers/scsi/smartpqi/Kconfig ++F: drivers/scsi/smartpqi/Makefile ++F: drivers/scsi/smartpqi/smartpqi*.[ch] ++F: include/linux/cciss*.h ++F: include/uapi/linux/cciss*.h ++ ++MICROSOFT SURFACE BATTERY AND AC DRIVERS ++M: Maximilian Luz <luzmaximilian@gmail.com> ++L: linux-pm@vger.kernel.org ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/power/supply/surface_battery.c ++F: drivers/power/supply/surface_charger.c ++ ++MICROSOFT SURFACE DTX DRIVER ++M: Maximilian Luz <luzmaximilian@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: Documentation/driver-api/surface_aggregator/clients/dtx.rst ++F: drivers/platform/surface/surface_dtx.c ++F: include/uapi/linux/surface_aggregator/dtx.h ++ ++MICROSOFT SURFACE GPE LID SUPPORT DRIVER ++M: Maximilian Luz <luzmaximilian@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/surface/surface_gpe.c ++ ++MICROSOFT SURFACE HARDWARE PLATFORM SUPPORT ++M: Hans de Goede <hdegoede@redhat.com> ++M: Mark Gross <mgross@linux.intel.com> ++M: Maximilian Luz <luzmaximilian@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git ++F: drivers/platform/surface/ ++ ++MICROSOFT SURFACE HID TRANSPORT DRIVER ++M: Maximilian Luz <luzmaximilian@gmail.com> ++L: linux-input@vger.kernel.org ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/hid/surface-hid/ ++ ++MICROSOFT SURFACE HOT-PLUG DRIVER ++M: Maximilian Luz <luzmaximilian@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/surface/surface_hotplug.c ++ ++MICROSOFT SURFACE PLATFORM PROFILE DRIVER ++M: Maximilian Luz <luzmaximilian@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/surface/surface_platform_profile.c ++ ++MICROSOFT SURFACE PRO 3 BUTTON DRIVER ++M: Chen Yu <yu.c.chen@intel.com> ++L: platform-driver-x86@vger.kernel.org ++S: Supported ++F: drivers/platform/surface/surfacepro3_button.c ++ ++MICROSOFT SURFACE SYSTEM AGGREGATOR SUBSYSTEM ++M: Maximilian Luz <luzmaximilian@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++W: https://github.com/linux-surface/surface-aggregator-module ++C: irc://irc.libera.chat/linux-surface ++F: Documentation/driver-api/surface_aggregator/ ++F: drivers/platform/surface/aggregator/ ++F: drivers/platform/surface/surface_acpi_notify.c ++F: drivers/platform/surface/surface_aggregator_cdev.c ++F: drivers/platform/surface/surface_aggregator_registry.c ++F: include/linux/surface_acpi_notify.h ++F: include/linux/surface_aggregator/ ++F: include/uapi/linux/surface_aggregator/ ++ ++MICROTEK X6 SCANNER ++M: Oliver Neukum <oliver@neukum.org> ++S: Maintained ++F: drivers/usb/image/microtek.* ++ ++MIKROTIK CRS3XX 98DX3236 BOARD SUPPORT ++M: Luka Kovacic <luka.kovacic@sartura.hr> ++M: Luka Perkov <luka.perkov@sartura.hr> ++S: Maintained ++F: arch/arm/boot/dts/armada-xp-crs305-1g-4s-bit.dts ++F: arch/arm/boot/dts/armada-xp-crs305-1g-4s.dts ++F: arch/arm/boot/dts/armada-xp-crs326-24g-2s-bit.dts ++F: arch/arm/boot/dts/armada-xp-crs326-24g-2s.dts ++F: arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s-bit.dts ++F: arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dts ++ ++MIPI CCS, SMIA AND SMIA++ IMAGE SENSOR DRIVER ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/i2c/mipi-ccs.yaml ++F: Documentation/driver-api/media/drivers/ccs/ ++F: Documentation/userspace-api/media/drivers/ccs.rst ++F: drivers/media/i2c/ccs-pll.c ++F: drivers/media/i2c/ccs-pll.h ++F: drivers/media/i2c/ccs/ ++F: include/uapi/linux/ccs.h ++F: include/uapi/linux/smiapp.h ++ ++MIPS ++M: Thomas Bogendoerfer <tsbogend@alpha.franken.de> ++L: linux-mips@vger.kernel.org ++S: Maintained ++W: http://www.linux-mips.org/ ++Q: https://patchwork.kernel.org/project/linux-mips/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git ++F: Documentation/devicetree/bindings/mips/ ++F: Documentation/mips/ ++F: arch/mips/ ++F: drivers/platform/mips/ ++ ++MIPS BOSTON DEVELOPMENT BOARD ++M: Paul Burton <paulburton@kernel.org> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/clock/img,boston-clock.txt ++F: arch/mips/boot/dts/img/boston.dts ++F: arch/mips/configs/generic/board-boston.config ++F: drivers/clk/imgtec/clk-boston.c ++F: include/dt-bindings/clock/boston-clock.h ++ ++MIPS CORE DRIVERS ++M: Thomas Bogendoerfer <tsbogend@alpha.franken.de> ++M: Serge Semin <fancer.lancer@gmail.com> ++L: linux-mips@vger.kernel.org ++S: Supported ++F: drivers/bus/mips_cdmm.c ++F: drivers/clocksource/mips-gic-timer.c ++F: drivers/cpuidle/cpuidle-cps.c ++F: drivers/irqchip/irq-mips-cpu.c ++F: drivers/irqchip/irq-mips-gic.c ++ ++MIPS GENERIC PLATFORM ++M: Paul Burton <paulburton@kernel.org> ++L: linux-mips@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/power/mti,mips-cpc.yaml ++F: arch/mips/generic/ ++F: arch/mips/tools/generic-board-config.sh ++ ++MIPS RINT INSTRUCTION EMULATION ++M: Aleksandar Markovic <aleksandar.markovic@mips.com> ++L: linux-mips@vger.kernel.org ++S: Supported ++F: arch/mips/math-emu/dp_rint.c ++F: arch/mips/math-emu/sp_rint.c ++ ++MIPS/LOONGSON1 ARCHITECTURE ++M: Keguang Zhang <keguang.zhang@gmail.com> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: arch/mips/include/asm/mach-loongson32/ ++F: arch/mips/loongson32/ ++F: drivers/*/*/*loongson1* ++F: drivers/*/*loongson1* ++ ++MIPS/LOONGSON2EF ARCHITECTURE ++M: Jiaxun Yang <jiaxun.yang@flygoat.com> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: arch/mips/include/asm/mach-loongson2ef/ ++F: arch/mips/loongson2ef/ ++F: drivers/cpufreq/loongson2_cpufreq.c ++ ++MIPS/LOONGSON64 ARCHITECTURE ++M: Huacai Chen <chenhuacai@kernel.org> ++M: Jiaxun Yang <jiaxun.yang@flygoat.com> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: arch/mips/include/asm/mach-loongson64/ ++F: arch/mips/loongson64/ ++F: drivers/irqchip/irq-loongson* ++F: drivers/platform/mips/cpu_hwmon.c ++ ++MIROSOUND PCM20 FM RADIO RECEIVER DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-miropcm20* ++ ++MMP SUPPORT ++R: Lubomir Rintel <lkundrak@v3.sk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Odd Fixes ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/lkundrak/linux-mmp.git ++F: arch/arm/boot/dts/mmp* ++F: arch/arm/mach-mmp/ ++F: include/linux/soc/mmp/ ++ ++MMP USB PHY DRIVERS ++R: Lubomir Rintel <lkundrak@v3.sk> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/phy/marvell/phy-mmp3-usb.c ++F: drivers/phy/marvell/phy-pxa-usb.c ++ ++MMU GATHER AND TLB INVALIDATION ++M: Will Deacon <will@kernel.org> ++M: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> ++M: Andrew Morton <akpm@linux-foundation.org> ++M: Nick Piggin <npiggin@gmail.com> ++M: Peter Zijlstra <peterz@infradead.org> ++L: linux-arch@vger.kernel.org ++L: linux-mm@kvack.org ++S: Maintained ++F: arch/*/include/asm/tlb.h ++F: include/asm-generic/tlb.h ++F: mm/mmu_gather.c ++ ++MN88472 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/dvb-frontends/mn88472* ++ ++MN88473 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/dvb-frontends/mn88473* ++ ++MODULE SUPPORT ++M: Luis Chamberlain <mcgrof@kernel.org> ++M: Jessica Yu <jeyu@kernel.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux.git modules-next ++F: include/linux/module.h ++F: kernel/module.c ++ ++MONOLITHIC POWER SYSTEM PMIC DRIVER ++M: Saravanan Sekar <sravanhome@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/mfd/mps,mp2629.yaml ++F: Documentation/devicetree/bindings/regulator/mps,mp*.yaml ++F: drivers/iio/adc/mp2629_adc.c ++F: drivers/mfd/mp2629.c ++F: drivers/power/supply/mp2629_charger.c ++F: drivers/regulator/mp5416.c ++F: drivers/regulator/mpq7920.c ++F: drivers/regulator/mpq7920.h ++F: include/linux/mfd/mp2629.h ++ ++MOTION EYE VAIO PICTUREBOOK CAMERA DRIVER ++S: Orphan ++W: http://popies.net/meye/ ++F: Documentation/userspace-api/media/drivers/meye* ++F: drivers/media/pci/meye/ ++F: include/uapi/linux/meye.h ++ ++MOTORCOMM PHY DRIVER ++M: Peter Geis <pgwipeout@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/phy/motorcomm.c ++ ++MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD ++M: Jiri Slaby <jirislaby@kernel.org> ++S: Maintained ++F: Documentation/driver-api/serial/moxa-smartio.rst ++F: drivers/tty/mxser.* ++ ++MR800 AVERMEDIA USB FM RADIO DRIVER ++M: Alexey Klimov <klimov.linux@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-mr800.c ++ ++MRF24J40 IEEE 802.15.4 RADIO DRIVER ++M: Alan Ott <alan@signal11.us> ++L: linux-wpan@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/ieee802154/mrf24j40.txt ++F: drivers/net/ieee802154/mrf24j40.c ++ ++MSI LAPTOP SUPPORT ++M: "Lee, Chun-Yi" <jlee@suse.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/msi-laptop.c ++ ++MSI WMI SUPPORT ++L: platform-driver-x86@vger.kernel.org ++S: Orphan ++F: drivers/platform/x86/msi-wmi.c ++ ++MSI001 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/tuners/msi001* ++ ++MSI2500 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/usb/msi2500/ ++ ++MSTAR INTERRUPT CONTROLLER DRIVER ++M: Mark-PK Tsai <mark-pk.tsai@mediatek.com> ++M: Daniel Palmer <daniel@thingy.jp> ++S: Maintained ++F: Documentation/devicetree/bindings/interrupt-controller/mstar,mst-intc.yaml ++F: drivers/irqchip/irq-mst-intc.c ++ ++MSYSTEMS DISKONCHIP G3 MTD DRIVER ++M: Robert Jarzmik <robert.jarzmik@free.fr> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++F: drivers/mtd/devices/docg3* ++ ++MT9M032 APTINA SENSOR DRIVER ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/mt9m032.c ++F: include/media/i2c/mt9m032.h ++ ++MT9P031 APTINA CAMERA SENSOR ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/mt9p031.c ++F: include/media/i2c/mt9p031.h ++ ++MT9T001 APTINA CAMERA SENSOR ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/mt9t001.c ++F: include/media/i2c/mt9t001.h ++ ++MT9T112 APTINA CAMERA SENSOR ++M: Jacopo Mondi <jacopo@jmondi.org> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/mt9t112.c ++F: include/media/i2c/mt9t112.h ++ ++MT9V032 APTINA CAMERA SENSOR ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/mt9v032.txt ++F: drivers/media/i2c/mt9v032.c ++F: include/media/i2c/mt9v032.h ++ ++MT9V111 APTINA CAMERA SENSOR ++M: Jacopo Mondi <jacopo@jmondi.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/aptina,mt9v111.yaml ++F: drivers/media/i2c/mt9v111.c ++ ++MULTIFUNCTION DEVICES (MFD) ++M: Lee Jones <lee.jones@linaro.org> ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git ++F: Documentation/devicetree/bindings/mfd/ ++F: drivers/mfd/ ++F: include/dt-bindings/mfd/ ++F: include/linux/mfd/ ++ ++MULTIMEDIA CARD (MMC) ETC. OVER SPI ++S: Orphan ++F: drivers/mmc/host/mmc_spi.c ++F: include/linux/spi/mmc_spi.h ++ ++MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM ++M: Ulf Hansson <ulf.hansson@linaro.org> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git ++F: Documentation/devicetree/bindings/mmc/ ++F: drivers/mmc/ ++F: include/linux/mmc/ ++F: include/uapi/linux/mmc/ ++ ++MULTIPLEXER SUBSYSTEM ++M: Peter Rosin <peda@axentia.se> ++S: Maintained ++F: Documentation/ABI/testing/sysfs-class-mux* ++F: Documentation/devicetree/bindings/mux/ ++F: drivers/mux/ ++F: include/dt-bindings/mux/ ++F: include/linux/mux/ ++ ++MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER ++M: Bin Liu <b-liu@ti.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/musb/ ++ ++MXL301RF MEDIA DRIVER ++M: Akihiro Tsukada <tskd08@gmail.com> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++F: drivers/media/tuners/mxl301rf* ++ ++MXL5007T MEDIA DRIVER ++M: Michael Krufky <mkrufky@linuxtv.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://github.com/mkrufky ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mkrufky/tuners.git ++F: drivers/media/tuners/mxl5007t.* ++ ++MXSFB DRM DRIVER ++M: Marek Vasut <marex@denx.de> ++M: Stefan Agner <stefan@agner.ch> ++L: dri-devel@lists.freedesktop.org ++S: Supported ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/devicetree/bindings/display/fsl,lcdif.yaml ++F: drivers/gpu/drm/mxsfb/ ++ ++MYLEX DAC960 PCI RAID Controller ++M: Hannes Reinecke <hare@kernel.org> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/myrb.* ++F: drivers/scsi/myrs.* ++ ++MYRICOM MYRI-10G 10GbE DRIVER (MYRI10GE) ++M: Chris Lee <christopher.lee@cspi.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: https://www.cspi.com/ethernet-products/support/downloads/ ++F: drivers/net/ethernet/myricom/myri10ge/ ++ ++NAND FLASH SUBSYSTEM ++M: Miquel Raynal <miquel.raynal@bootlin.com> ++R: Richard Weinberger <richard@nod.at> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++W: http://www.linux-mtd.infradead.org/ ++Q: http://patchwork.ozlabs.org/project/linux-mtd/list/ ++C: irc://irc.oftc.net/mtd ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next ++F: drivers/mtd/nand/ ++F: include/linux/mtd/*nand*.h ++ ++NATIVE INSTRUMENTS USB SOUND INTERFACE DRIVER ++M: Daniel Mack <zonque@gmail.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.native-instruments.com ++F: sound/usb/caiaq/ ++ ++NATSEMI ETHERNET DRIVER (DP8381x) ++S: Orphan ++F: drivers/net/ethernet/natsemi/natsemi.c ++ ++NCR 5380 SCSI DRIVERS ++M: Finn Thain <fthain@linux-m68k.org> ++M: Michael Schmitz <schmitzmic@gmail.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: Documentation/scsi/g_NCR5380.rst ++F: drivers/scsi/NCR5380.* ++F: drivers/scsi/arm/cumana_1.c ++F: drivers/scsi/arm/oak.c ++F: drivers/scsi/atari_scsi.* ++F: drivers/scsi/dmx3191d.c ++F: drivers/scsi/g_NCR5380.* ++F: drivers/scsi/mac_scsi.* ++F: drivers/scsi/sun3_scsi.* ++F: drivers/scsi/sun3_scsi_vme.c ++ ++NCSI LIBRARY ++M: Samuel Mendoza-Jonas <sam@mendozajonas.com> ++S: Maintained ++F: net/ncsi/ ++ ++NCT6775 HARDWARE MONITOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/nct6775.rst ++F: drivers/hwmon/nct6775.c ++ ++NETDEVSIM ++M: Jakub Kicinski <kuba@kernel.org> ++S: Maintained ++F: drivers/net/netdevsim/* ++ ++NETEM NETWORK EMULATOR ++M: Stephen Hemminger <stephen@networkplumber.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: net/sched/sch_netem.c ++ ++NETERION 10GbE DRIVERS (s2io/vxge) ++M: Jon Mason <jdmason@kudzu.us> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/device_drivers/ethernet/neterion/s2io.rst ++F: Documentation/networking/device_drivers/ethernet/neterion/vxge.rst ++F: drivers/net/ethernet/neterion/ ++ ++NETFILTER ++M: Pablo Neira Ayuso <pablo@netfilter.org> ++M: Jozsef Kadlecsik <kadlec@netfilter.org> ++M: Florian Westphal <fw@strlen.de> ++L: netfilter-devel@vger.kernel.org ++L: coreteam@netfilter.org ++S: Maintained ++W: http://www.netfilter.org/ ++W: http://www.iptables.org/ ++W: http://www.nftables.org/ ++Q: http://patchwork.ozlabs.org/project/netfilter-devel/list/ ++C: irc://irc.libera.chat/netfilter ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git ++F: include/linux/netfilter* ++F: include/linux/netfilter/ ++F: include/net/netfilter/ ++F: include/uapi/linux/netfilter* ++F: include/uapi/linux/netfilter/ ++F: net/*/netfilter.c ++F: net/*/netfilter/ ++F: net/bridge/br_netfilter*.c ++F: net/netfilter/ ++ ++NETROM NETWORK LAYER ++M: Ralf Baechle <ralf@linux-mips.org> ++L: linux-hams@vger.kernel.org ++S: Maintained ++W: http://www.linux-ax25.org/ ++F: include/net/netrom.h ++F: include/uapi/linux/netrom.h ++F: net/netrom/ ++ ++NETRONIX EMBEDDED CONTROLLER ++M: Jonathan Neuschäfer <j.neuschaefer@gmx.net> ++S: Maintained ++F: Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml ++F: drivers/mfd/ntxec.c ++F: drivers/pwm/pwm-ntxec.c ++F: drivers/rtc/rtc-ntxec.c ++F: include/linux/mfd/ntxec.h ++ ++NETRONOME ETHERNET DRIVERS ++M: Simon Horman <simon.horman@corigine.com> ++R: Jakub Kicinski <kuba@kernel.org> ++L: oss-drivers@corigine.com ++S: Maintained ++F: drivers/net/ethernet/netronome/ ++ ++NETWORK BLOCK DEVICE (NBD) ++M: Josef Bacik <josef@toxicpanda.com> ++L: linux-block@vger.kernel.org ++L: nbd@other.debian.org ++S: Maintained ++F: Documentation/admin-guide/blockdev/nbd.rst ++F: drivers/block/nbd.c ++F: include/trace/events/nbd.h ++F: include/uapi/linux/nbd.h ++ ++NETWORK DROP MONITOR ++M: Neil Horman <nhorman@tuxdriver.com> ++L: netdev@vger.kernel.org ++S: Maintained ++W: https://fedorahosted.org/dropwatch/ ++F: include/uapi/linux/net_dropmon.h ++F: net/core/drop_monitor.c ++ ++NETWORKING DRIVERS ++M: "David S. Miller" <davem@davemloft.net> ++M: Jakub Kicinski <kuba@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git ++F: Documentation/devicetree/bindings/net/ ++F: drivers/connector/ ++F: drivers/net/ ++F: include/linux/etherdevice.h ++F: include/linux/fcdevice.h ++F: include/linux/fddidevice.h ++F: include/linux/hippidevice.h ++F: include/linux/if_* ++F: include/linux/inetdevice.h ++F: include/linux/netdevice.h ++F: include/uapi/linux/if_* ++F: include/uapi/linux/netdevice.h ++ ++NETWORKING DRIVERS (WIRELESS) ++M: Kalle Valo <kvalo@codeaurora.org> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++Q: http://patchwork.kernel.org/project/linux-wireless/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git ++F: Documentation/devicetree/bindings/net/wireless/ ++F: drivers/net/wireless/ ++ ++NETWORKING [DSA] ++M: Andrew Lunn <andrew@lunn.ch> ++M: Vivien Didelot <vivien.didelot@gmail.com> ++M: Florian Fainelli <f.fainelli@gmail.com> ++M: Vladimir Oltean <olteanv@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/net/dsa/ ++F: drivers/net/dsa/ ++F: include/linux/dsa/ ++F: include/linux/platform_data/dsa.h ++F: include/net/dsa.h ++F: net/dsa/ ++ ++NETWORKING [GENERAL] ++M: "David S. Miller" <davem@davemloft.net> ++M: Jakub Kicinski <kuba@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++Q: https://patchwork.kernel.org/project/netdevbpf/list/ ++B: mailto:netdev@vger.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git ++F: Documentation/networking/ ++F: include/linux/in.h ++F: include/linux/net.h ++F: include/linux/netdevice.h ++F: include/net/ ++F: include/uapi/linux/in.h ++F: include/uapi/linux/net.h ++F: include/uapi/linux/net_namespace.h ++F: include/uapi/linux/netdevice.h ++F: lib/net_utils.c ++F: lib/random32.c ++F: net/ ++F: tools/testing/selftests/net/ ++ ++NETWORKING [IPSEC] ++M: Steffen Klassert <steffen.klassert@secunet.com> ++M: Herbert Xu <herbert@gondor.apana.org.au> ++M: "David S. Miller" <davem@davemloft.net> ++L: netdev@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git ++F: include/net/xfrm.h ++F: include/uapi/linux/xfrm.h ++F: net/ipv4/ah4.c ++F: net/ipv4/esp4* ++F: net/ipv4/ip_vti.c ++F: net/ipv4/ipcomp.c ++F: net/ipv4/xfrm* ++F: net/ipv6/ah6.c ++F: net/ipv6/esp6* ++F: net/ipv6/ip6_vti.c ++F: net/ipv6/ipcomp6.c ++F: net/ipv6/xfrm* ++F: net/key/ ++F: net/xfrm/ ++F: tools/testing/selftests/net/ipsec.c ++ ++NETWORKING [IPv4/IPv6] ++M: "David S. Miller" <davem@davemloft.net> ++M: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> ++M: David Ahern <dsahern@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git ++F: arch/x86/net/* ++F: include/net/ip* ++F: net/ipv4/ ++F: net/ipv6/ ++ ++NETWORKING [LABELED] (NetLabel, Labeled IPsec, SECMARK) ++M: Paul Moore <paul@paul-moore.com> ++L: netdev@vger.kernel.org ++L: linux-security-module@vger.kernel.org ++S: Maintained ++W: https://github.com/netlabel ++F: Documentation/netlabel/ ++F: include/net/calipso.h ++F: include/net/cipso_ipv4.h ++F: include/net/netlabel.h ++F: include/uapi/linux/netfilter/xt_CONNSECMARK.h ++F: include/uapi/linux/netfilter/xt_SECMARK.h ++F: net/ipv4/cipso_ipv4.c ++F: net/ipv6/calipso.c ++F: net/netfilter/xt_CONNSECMARK.c ++F: net/netfilter/xt_SECMARK.c ++F: net/netlabel/ ++ ++NETWORKING [MPTCP] ++M: Mat Martineau <mathew.j.martineau@linux.intel.com> ++M: Matthieu Baerts <matthieu.baerts@tessares.net> ++L: netdev@vger.kernel.org ++L: mptcp@lists.linux.dev ++S: Maintained ++W: https://github.com/multipath-tcp/mptcp_net-next/wiki ++B: https://github.com/multipath-tcp/mptcp_net-next/issues ++F: Documentation/networking/mptcp-sysctl.rst ++F: include/net/mptcp.h ++F: include/trace/events/mptcp.h ++F: include/uapi/linux/mptcp.h ++F: net/mptcp/ ++F: tools/testing/selftests/net/mptcp/ ++ ++NETWORKING [TCP] ++M: Eric Dumazet <edumazet@google.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: include/linux/tcp.h ++F: include/net/tcp.h ++F: include/trace/events/tcp.h ++F: include/uapi/linux/tcp.h ++F: net/ipv4/syncookies.c ++F: net/ipv4/tcp*.c ++F: net/ipv6/syncookies.c ++F: net/ipv6/tcp*.c ++ ++NETWORKING [TLS] ++M: Boris Pismenny <borisp@nvidia.com> ++M: John Fastabend <john.fastabend@gmail.com> ++M: Daniel Borkmann <daniel@iogearbox.net> ++M: Jakub Kicinski <kuba@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: include/net/tls.h ++F: include/uapi/linux/tls.h ++F: net/tls/* ++ ++NETWORKING [WIRELESS] ++L: linux-wireless@vger.kernel.org ++Q: http://patchwork.kernel.org/project/linux-wireless/list/ ++ ++NETXEN (1/10) GbE SUPPORT ++M: Manish Chopra <manishc@marvell.com> ++M: Rahul Verma <rahulv@marvell.com> ++M: GR-Linux-NIC-Dev@marvell.com ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/qlogic/netxen/ ++ ++NET_FAILOVER MODULE ++M: Sridhar Samudrala <sridhar.samudrala@intel.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/net_failover.rst ++F: drivers/net/net_failover.c ++F: include/net/net_failover.h ++ ++NEXTHOP ++M: David Ahern <dsahern@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: include/net/netns/nexthop.h ++F: include/net/nexthop.h ++F: include/uapi/linux/nexthop.h ++F: net/ipv4/nexthop.c ++ ++NFC SUBSYSTEM ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++L: linux-nfc@lists.01.org (subscribers-only) ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/nfc/ ++F: drivers/nfc/ ++F: include/linux/platform_data/nfcmrvl.h ++F: include/net/nfc/ ++F: include/uapi/linux/nfc.h ++F: net/nfc/ ++ ++NFC VIRTUAL NCI DEVICE DRIVER ++M: Bongsu Jeon <bongsu.jeon@samsung.com> ++L: netdev@vger.kernel.org ++L: linux-nfc@lists.01.org (subscribers-only) ++S: Supported ++F: drivers/nfc/virtual_ncidev.c ++F: tools/testing/selftests/nci/ ++ ++NFS, SUNRPC, AND LOCKD CLIENTS ++M: Trond Myklebust <trond.myklebust@hammerspace.com> ++M: Anna Schumaker <anna.schumaker@netapp.com> ++L: linux-nfs@vger.kernel.org ++S: Maintained ++W: http://client.linux-nfs.org ++T: git git://git.linux-nfs.org/projects/trondmy/linux-nfs.git ++F: fs/lockd/ ++F: fs/nfs/ ++F: fs/nfs_common/ ++F: include/linux/lockd/ ++F: include/linux/nfs* ++F: include/linux/sunrpc/ ++F: include/uapi/linux/nfs* ++F: include/uapi/linux/sunrpc/ ++F: net/sunrpc/ ++F: Documentation/filesystems/nfs/ ++ ++NILFS2 FILESYSTEM ++M: Ryusuke Konishi <konishi.ryusuke@gmail.com> ++L: linux-nilfs@vger.kernel.org ++S: Supported ++W: https://nilfs.sourceforge.io/ ++W: https://nilfs.osdn.jp/ ++T: git git://github.com/konis/nilfs2.git ++F: Documentation/filesystems/nilfs2.rst ++F: fs/nilfs2/ ++F: include/trace/events/nilfs2.h ++F: include/uapi/linux/nilfs2_api.h ++F: include/uapi/linux/nilfs2_ondisk.h ++ ++NINJA SCSI-3 / NINJA SCSI-32Bi (16bit/CardBus) PCMCIA SCSI HOST ADAPTER DRIVER ++M: YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp> ++S: Maintained ++W: http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/ ++F: Documentation/scsi/NinjaSCSI.rst ++F: drivers/scsi/pcmcia/nsp_* ++ ++NINJA SCSI-32Bi/UDE PCI/CARDBUS SCSI HOST ADAPTER DRIVER ++M: GOTO Masanori <gotom@debian.or.jp> ++M: YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp> ++S: Maintained ++W: http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/ ++F: Documentation/scsi/NinjaSCSI.rst ++F: drivers/scsi/nsp32* ++ ++NIOS2 ARCHITECTURE ++M: Dinh Nguyen <dinguyen@kernel.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git ++F: arch/nios2/ ++ ++NITRO ENCLAVES (NE) ++M: Andra Paraschiv <andraprs@amazon.com> ++M: Alexandru Vasile <lexnv@amazon.com> ++M: Alexandru Ciobotaru <alcioa@amazon.com> ++L: linux-kernel@vger.kernel.org ++S: Supported ++W: https://aws.amazon.com/ec2/nitro/nitro-enclaves/ ++F: Documentation/virt/ne_overview.rst ++F: drivers/virt/nitro_enclaves/ ++F: include/linux/nitro_enclaves.h ++F: include/uapi/linux/nitro_enclaves.h ++F: samples/nitro_enclaves/ ++ ++NOHZ, DYNTICKS SUPPORT ++M: Frederic Weisbecker <fweisbec@gmail.com> ++M: Thomas Gleixner <tglx@linutronix.de> ++M: Ingo Molnar <mingo@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/nohz ++F: include/linux/sched/nohz.h ++F: include/linux/tick.h ++F: kernel/time/tick*.* ++ ++NOKIA N900 CAMERA SUPPORT (ET8EK8 SENSOR, AD5820 FOCUS) ++M: Pavel Machek <pavel@ucw.cz> ++M: Sakari Ailus <sakari.ailus@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/ad5820.c ++F: drivers/media/i2c/et8ek8 ++ ++NOKIA N900 POWER SUPPLY DRIVERS ++R: Pali Rohár <pali@kernel.org> ++F: drivers/power/supply/bq2415x_charger.c ++F: drivers/power/supply/bq27xxx_battery.c ++F: drivers/power/supply/bq27xxx_battery_i2c.c ++F: drivers/power/supply/isp1704_charger.c ++F: drivers/power/supply/rx51_battery.c ++F: include/linux/power/bq2415x_charger.h ++F: include/linux/power/bq27xxx_battery.h ++ ++NOLIBC HEADER FILE ++M: Willy Tarreau <w@1wt.eu> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/nolibc.git ++F: tools/include/nolibc/ ++ ++NSDEPS ++M: Matthias Maennich <maennich@google.com> ++S: Maintained ++F: Documentation/core-api/symbol-namespaces.rst ++F: scripts/nsdeps ++ ++NTB AMD DRIVER ++M: Sanjay R Mehta <sanju.mehta@amd.com> ++M: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> ++L: linux-ntb@googlegroups.com ++S: Supported ++F: drivers/ntb/hw/amd/ ++ ++NTB DRIVER CORE ++M: Jon Mason <jdmason@kudzu.us> ++M: Dave Jiang <dave.jiang@intel.com> ++M: Allen Hubbe <allenbh@gmail.com> ++L: linux-ntb@googlegroups.com ++S: Supported ++W: https://github.com/jonmason/ntb/wiki ++T: git git://github.com/jonmason/ntb.git ++F: drivers/net/ntb_netdev.c ++F: drivers/ntb/ ++F: include/linux/ntb.h ++F: include/linux/ntb_transport.h ++F: tools/testing/selftests/ntb/ ++ ++NTB IDT DRIVER ++M: Serge Semin <fancer.lancer@gmail.com> ++L: linux-ntb@googlegroups.com ++S: Supported ++F: drivers/ntb/hw/idt/ ++ ++NTB INTEL DRIVER ++M: Dave Jiang <dave.jiang@intel.com> ++L: linux-ntb@googlegroups.com ++S: Supported ++W: https://github.com/davejiang/linux/wiki ++T: git https://github.com/davejiang/linux.git ++F: drivers/ntb/hw/intel/ ++ ++NTFS FILESYSTEM ++M: Anton Altaparmakov <anton@tuxera.com> ++L: linux-ntfs-dev@lists.sourceforge.net ++S: Supported ++W: http://www.tuxera.com/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs.git ++F: Documentation/filesystems/ntfs.rst ++F: fs/ntfs/ ++ ++NTFS3 FILESYSTEM ++M: Konstantin Komarov <almaz.alexandrovich@paragon-software.com> ++L: ntfs3@lists.linux.dev ++S: Supported ++W: http://www.paragon-software.com/ ++T: git https://github.com/Paragon-Software-Group/linux-ntfs3.git ++F: Documentation/filesystems/ntfs3.rst ++F: fs/ntfs3/ ++ ++NUBUS SUBSYSTEM ++M: Finn Thain <fthain@linux-m68k.org> ++L: linux-m68k@lists.linux-m68k.org ++S: Maintained ++F: arch/*/include/asm/nubus.h ++F: drivers/nubus/ ++F: include/linux/nubus.h ++F: include/uapi/linux/nubus.h ++ ++NVIDIA (rivafb and nvidiafb) FRAMEBUFFER DRIVER ++M: Antonino Daplas <adaplas@gmail.com> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/nvidia/ ++F: drivers/video/fbdev/riva/ ++ ++NVM EXPRESS DRIVER ++M: Keith Busch <kbusch@kernel.org> ++M: Jens Axboe <axboe@fb.com> ++M: Christoph Hellwig <hch@lst.de> ++M: Sagi Grimberg <sagi@grimberg.me> ++L: linux-nvme@lists.infradead.org ++S: Supported ++W: http://git.infradead.org/nvme.git ++T: git://git.infradead.org/nvme.git ++F: drivers/nvme/host/ ++F: include/linux/nvme.h ++F: include/uapi/linux/nvme_ioctl.h ++ ++NVM EXPRESS FC TRANSPORT DRIVERS ++M: James Smart <james.smart@broadcom.com> ++L: linux-nvme@lists.infradead.org ++S: Supported ++F: drivers/nvme/host/fc.c ++F: drivers/nvme/target/fc.c ++F: drivers/nvme/target/fcloop.c ++F: include/linux/nvme-fc-driver.h ++F: include/linux/nvme-fc.h ++ ++NVM EXPRESS TARGET DRIVER ++M: Christoph Hellwig <hch@lst.de> ++M: Sagi Grimberg <sagi@grimberg.me> ++M: Chaitanya Kulkarni <kch@nvidia.com> ++L: linux-nvme@lists.infradead.org ++S: Supported ++W: http://git.infradead.org/nvme.git ++T: git://git.infradead.org/nvme.git ++F: drivers/nvme/target/ ++ ++NVMEM FRAMEWORK ++M: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/srini/nvmem.git ++F: Documentation/ABI/stable/sysfs-bus-nvmem ++F: Documentation/devicetree/bindings/nvmem/ ++F: drivers/nvmem/ ++F: include/linux/nvmem-consumer.h ++F: include/linux/nvmem-provider.h ++ ++NXP C45 TJA11XX PHY DRIVER ++M: Radu Pirea <radu-nicolae.pirea@oss.nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/phy/nxp-c45-tja11xx.c ++ ++NXP FSPI DRIVER ++M: Ashish Kumar <ashish.kumar@nxp.com> ++R: Yogesh Gaur <yogeshgaur.83@gmail.com> ++L: linux-spi@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt ++F: drivers/spi/spi-nxp-fspi.c ++ ++NXP FXAS21002C DRIVER ++M: Rui Miguel Silva <rmfrfs@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.yaml ++F: drivers/iio/gyro/fxas21002c.h ++F: drivers/iio/gyro/fxas21002c_core.c ++F: drivers/iio/gyro/fxas21002c_i2c.c ++F: drivers/iio/gyro/fxas21002c_spi.c ++ ++NXP i.MX CLOCK DRIVERS ++M: Abel Vesa <abel.vesa@nxp.com> ++L: linux-clk@vger.kernel.org ++L: linux-imx@nxp.com ++S: Maintained ++F: drivers/clk/imx/ ++ ++NXP i.MX 8MQ DCSS DRIVER ++M: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com> ++R: Lucas Stach <l.stach@pengutronix.de> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++F: Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml ++F: drivers/gpu/drm/imx/dcss/ ++ ++NXP PF8100/PF8121A/PF8200 PMIC REGULATOR DEVICE DRIVER ++M: Jagan Teki <jagan@amarulasolutions.com> ++S: Maintained ++F: Documentation/devicetree/bindings/regulator/nxp,pf8x00-regulator.yaml ++F: drivers/regulator/pf8x00-regulator.c ++ ++NXP PTN5150A CC LOGIC AND EXTCON DRIVER ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/extcon/extcon-ptn5150.yaml ++F: drivers/extcon/extcon-ptn5150.c ++ ++NXP SGTL5000 DRIVER ++M: Fabio Estevam <festevam@gmail.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/sound/sgtl5000.yaml ++F: sound/soc/codecs/sgtl5000* ++ ++NXP SJA1105 ETHERNET SWITCH DRIVER ++M: Vladimir Oltean <olteanv@gmail.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/net/dsa/sja1105 ++F: drivers/net/pcs/pcs-xpcs-nxp.c ++ ++NXP TDA998X DRM DRIVER ++M: Russell King <linux@armlinux.org.uk> ++S: Maintained ++T: git git://git.armlinux.org.uk/~rmk/linux-arm.git drm-tda998x-devel ++T: git git://git.armlinux.org.uk/~rmk/linux-arm.git drm-tda998x-fixes ++F: drivers/gpu/drm/i2c/tda998x_drv.c ++F: include/drm/i2c/tda998x.h ++F: include/dt-bindings/display/tda998x.h ++K: "nxp,tda998x" ++ ++NXP TFA9879 DRIVER ++M: Peter Rosin <peda@axentia.se> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/sound/tfa9879.txt ++F: sound/soc/codecs/tfa9879* ++ ++NXP/Goodix TFA989X (TFA1) DRIVER ++M: Stephan Gerhold <stephan@gerhold.net> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml ++F: sound/soc/codecs/tfa989x.c ++ ++NXP-NCI NFC DRIVER ++R: Charles Gorand <charles.gorand@effinnov.com> ++L: linux-nfc@lists.01.org (subscribers-only) ++S: Supported ++F: drivers/nfc/nxp-nci ++ ++NXP i.MX 8QXP/8QM JPEG V4L2 DRIVER ++M: Mirela Rabulea <mirela.rabulea@nxp.com> ++R: NXP Linux Team <linux-imx@nxp.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/imx8-jpeg.yaml ++F: drivers/media/platform/imx-jpeg ++ ++NZXT-KRAKEN2 HARDWARE MONITORING DRIVER ++M: Jonas Malaco <jonas@protocubo.io> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/nzxt-kraken2.rst ++F: drivers/hwmon/nzxt-kraken2.c ++ ++OBJAGG ++M: Jiri Pirko <jiri@nvidia.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: include/linux/objagg.h ++F: lib/objagg.c ++F: lib/test_objagg.c ++ ++OBJTOOL ++M: Josh Poimboeuf <jpoimboe@redhat.com> ++M: Peter Zijlstra <peterz@infradead.org> ++S: Supported ++F: tools/objtool/ ++F: include/linux/objtool.h ++ ++OCELOT ETHERNET SWITCH DRIVER ++M: Vladimir Oltean <vladimir.oltean@nxp.com> ++M: Claudiu Manoil <claudiu.manoil@nxp.com> ++M: Alexandre Belloni <alexandre.belloni@bootlin.com> ++M: UNGLinuxDriver@microchip.com ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/dsa/ocelot/* ++F: drivers/net/ethernet/mscc/ ++F: include/soc/mscc/ocelot* ++F: net/dsa/tag_ocelot.c ++F: net/dsa/tag_ocelot_8021q.c ++F: tools/testing/selftests/drivers/net/ocelot/* ++ ++OCXL (Open Coherent Accelerator Processor Interface OpenCAPI) DRIVER ++M: Frederic Barrat <fbarrat@linux.ibm.com> ++M: Andrew Donnellan <ajd@linux.ibm.com> ++L: linuxppc-dev@lists.ozlabs.org ++S: Supported ++F: Documentation/userspace-api/accelerators/ocxl.rst ++F: arch/powerpc/include/asm/pnv-ocxl.h ++F: arch/powerpc/platforms/powernv/ocxl.c ++F: drivers/misc/ocxl/ ++F: include/misc/ocxl* ++F: include/uapi/misc/ocxl.h ++ ++OMAP AUDIO SUPPORT ++M: Peter Ujfalusi <peter.ujfalusi@gmail.com> ++M: Jarkko Nikula <jarkko.nikula@bitmer.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: sound/soc/ti/n810.c ++F: sound/soc/ti/omap* ++F: sound/soc/ti/rx51.c ++F: sound/soc/ti/sdma-pcm.* ++ ++OMAP CLOCK FRAMEWORK SUPPORT ++M: Paul Walmsley <paul@pwsan.com> ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: arch/arm/*omap*/*clock* ++ ++OMAP DEVICE TREE SUPPORT ++M: Benoît Cousson <bcousson@baylibre.com> ++M: Tony Lindgren <tony@atomide.com> ++L: linux-omap@vger.kernel.org ++L: devicetree@vger.kernel.org ++S: Maintained ++F: arch/arm/boot/dts/*am3* ++F: arch/arm/boot/dts/*am4* ++F: arch/arm/boot/dts/*am5* ++F: arch/arm/boot/dts/*dra7* ++F: arch/arm/boot/dts/*omap* ++F: arch/arm/boot/dts/logicpd-som-lv* ++F: arch/arm/boot/dts/logicpd-torpedo* ++ ++OMAP DISPLAY SUBSYSTEM and FRAMEBUFFER SUPPORT (DSS2) ++L: linux-omap@vger.kernel.org ++L: linux-fbdev@vger.kernel.org ++S: Orphan ++F: Documentation/arm/omap/dss.rst ++F: drivers/video/fbdev/omap2/ ++ ++OMAP FRAMEBUFFER SUPPORT ++L: linux-fbdev@vger.kernel.org ++L: linux-omap@vger.kernel.org ++S: Orphan ++F: drivers/video/fbdev/omap/ ++ ++OMAP GENERAL PURPOSE MEMORY CONTROLLER SUPPORT ++M: Roger Quadros <rogerq@kernel.org> ++M: Tony Lindgren <tony@atomide.com> ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: arch/arm/mach-omap2/*gpmc* ++F: drivers/memory/omap-gpmc.c ++ ++OMAP GPIO DRIVER ++M: Grygorii Strashko <grygorii.strashko@ti.com> ++M: Santosh Shilimkar <ssantosh@kernel.org> ++M: Kevin Hilman <khilman@kernel.org> ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/gpio/ti,omap-gpio.yaml ++F: drivers/gpio/gpio-omap.c ++ ++OMAP HARDWARE SPINLOCK SUPPORT ++M: Ohad Ben-Cohen <ohad@wizery.com> ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: drivers/hwspinlock/omap_hwspinlock.c ++ ++OMAP HS MMC SUPPORT ++L: linux-mmc@vger.kernel.org ++L: linux-omap@vger.kernel.org ++S: Orphan ++F: drivers/mmc/host/omap_hsmmc.c ++ ++OMAP HWMOD DATA ++M: Paul Walmsley <paul@pwsan.com> ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: arch/arm/mach-omap2/omap_hwmod*data* ++ ++OMAP HWMOD SUPPORT ++M: Benoît Cousson <bcousson@baylibre.com> ++M: Paul Walmsley <paul@pwsan.com> ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: arch/arm/mach-omap2/omap_hwmod.* ++ ++OMAP I2C DRIVER ++M: Vignesh R <vigneshr@ti.com> ++L: linux-omap@vger.kernel.org ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml ++F: drivers/i2c/busses/i2c-omap.c ++ ++OMAP IMAGING SUBSYSTEM (OMAP3 ISP and OMAP4 ISS) ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/ti,omap3isp.txt ++F: drivers/media/platform/omap3isp/ ++F: drivers/staging/media/omap4iss/ ++ ++OMAP MMC SUPPORT ++M: Aaro Koskinen <aaro.koskinen@iki.fi> ++L: linux-omap@vger.kernel.org ++S: Odd Fixes ++F: drivers/mmc/host/omap.c ++ ++OMAP POWER MANAGEMENT SUPPORT ++M: Kevin Hilman <khilman@kernel.org> ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: arch/arm/*omap*/*pm* ++F: drivers/cpufreq/omap-cpufreq.c ++ ++OMAP POWERDOMAIN SOC ADAPTATION LAYER SUPPORT ++M: Rajendra Nayak <rnayak@codeaurora.org> ++M: Paul Walmsley <paul@pwsan.com> ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: arch/arm/mach-omap2/prm* ++ ++OMAP RANDOM NUMBER GENERATOR SUPPORT ++M: Deepak Saxena <dsaxena@plexity.net> ++S: Maintained ++F: drivers/char/hw_random/omap-rng.c ++ ++OMAP USB SUPPORT ++L: linux-usb@vger.kernel.org ++L: linux-omap@vger.kernel.org ++S: Orphan ++F: arch/arm/*omap*/usb* ++F: drivers/usb/*/*omap* ++ ++OMAP/NEWFLOW NANOBONE MACHINE SUPPORT ++M: Mark Jackson <mpfj@newflow.co.uk> ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: arch/arm/boot/dts/am335x-nano.dts ++ ++OMAP1 SUPPORT ++M: Aaro Koskinen <aaro.koskinen@iki.fi> ++M: Tony Lindgren <tony@atomide.com> ++L: linux-omap@vger.kernel.org ++S: Maintained ++Q: http://patchwork.kernel.org/project/linux-omap/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git ++F: arch/arm/configs/omap1_defconfig ++F: arch/arm/mach-omap1/ ++F: arch/arm/plat-omap/ ++F: drivers/i2c/busses/i2c-omap.c ++F: include/linux/platform_data/ams-delta-fiq.h ++F: include/linux/platform_data/i2c-omap.h ++ ++OMAP2+ SUPPORT ++M: Tony Lindgren <tony@atomide.com> ++L: linux-omap@vger.kernel.org ++S: Maintained ++W: http://www.muru.com/linux/omap/ ++W: http://linux.omap.com/ ++Q: http://patchwork.kernel.org/project/linux-omap/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git ++F: arch/arm/configs/omap2plus_defconfig ++F: arch/arm/mach-omap2/ ++F: arch/arm/plat-omap/ ++F: drivers/bus/ti-sysc.c ++F: drivers/i2c/busses/i2c-omap.c ++F: drivers/irqchip/irq-omap-intc.c ++F: drivers/mfd/*omap*.c ++F: drivers/mfd/menelaus.c ++F: drivers/mfd/palmas.c ++F: drivers/mfd/tps65217.c ++F: drivers/mfd/tps65218.c ++F: drivers/mfd/tps65910.c ++F: drivers/mfd/twl-core.[ch] ++F: drivers/mfd/twl4030*.c ++F: drivers/mfd/twl6030*.c ++F: drivers/mfd/twl6040*.c ++F: drivers/regulator/palmas-regulator*.c ++F: drivers/regulator/pbias-regulator.c ++F: drivers/regulator/tps65217-regulator.c ++F: drivers/regulator/tps65218-regulator.c ++F: drivers/regulator/tps65910-regulator.c ++F: drivers/regulator/twl-regulator.c ++F: drivers/regulator/twl6030-regulator.c ++F: include/linux/platform_data/i2c-omap.h ++F: include/linux/platform_data/ti-sysc.h ++ ++OMFS FILESYSTEM ++M: Bob Copeland <me@bobcopeland.com> ++L: linux-karma-devel@lists.sourceforge.net ++S: Maintained ++F: Documentation/filesystems/omfs.rst ++F: fs/omfs/ ++ ++OMNIKEY CARDMAN 4000 DRIVER ++M: Harald Welte <laforge@gnumonks.org> ++S: Maintained ++F: drivers/char/pcmcia/cm4000_cs.c ++F: include/linux/cm4000_cs.h ++F: include/uapi/linux/cm4000_cs.h ++ ++OMNIKEY CARDMAN 4040 DRIVER ++M: Harald Welte <laforge@gnumonks.org> ++S: Maintained ++F: drivers/char/pcmcia/cm4040_cs.* ++ ++OMNIVISION OV02A10 SENSOR DRIVER ++M: Dongchun Zhu <dongchun.zhu@mediatek.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml ++F: drivers/media/i2c/ov02a10.c ++ ++OMNIVISION OV13858 SENSOR DRIVER ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/ov13858.c ++ ++OMNIVISION OV2680 SENSOR DRIVER ++M: Rui Miguel Silva <rmfrfs@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ovti,ov2680.yaml ++F: drivers/media/i2c/ov2680.c ++ ++OMNIVISION OV2685 SENSOR DRIVER ++M: Shunqian Zheng <zhengsq@rock-chips.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/ov2685.c ++ ++OMNIVISION OV2740 SENSOR DRIVER ++M: Tianshu Qiu <tian.shu.qiu@intel.com> ++R: Shawn Tu <shawnx.tu@intel.com> ++R: Bingbu Cao <bingbu.cao@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/ov2740.c ++ ++OMNIVISION OV5640 SENSOR DRIVER ++M: Steve Longerbeam <slongerbeam@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/ov5640.c ++ ++OMNIVISION OV5647 SENSOR DRIVER ++M: Dave Stevenson <dave.stevenson@raspberrypi.com> ++M: Jacopo Mondi <jacopo@jmondi.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ovti,ov5647.yaml ++F: drivers/media/i2c/ov5647.c ++ ++OMNIVISION OV5670 SENSOR DRIVER ++M: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com> ++M: Hyungwoo Yang <hyungwoo.yang@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/ov5670.c ++ ++OMNIVISION OV5675 SENSOR DRIVER ++M: Shawn Tu <shawnx.tu@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/ov5675.c ++ ++OMNIVISION OV5695 SENSOR DRIVER ++M: Shunqian Zheng <zhengsq@rock-chips.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/ov5695.c ++ ++OMNIVISION OV7670 SENSOR DRIVER ++L: linux-media@vger.kernel.org ++S: Orphan ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ov7670.txt ++F: drivers/media/i2c/ov7670.c ++ ++OMNIVISION OV772x SENSOR DRIVER ++M: Jacopo Mondi <jacopo@jmondi.org> ++L: linux-media@vger.kernel.org ++S: Odd fixes ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ovti,ov772x.yaml ++F: drivers/media/i2c/ov772x.c ++F: include/media/i2c/ov772x.h ++ ++OMNIVISION OV7740 SENSOR DRIVER ++M: Wenyou Yang <wenyou.yang@microchip.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ov7740.txt ++F: drivers/media/i2c/ov7740.c ++ ++OMNIVISION OV8856 SENSOR DRIVER ++M: Dongchun Zhu <dongchun.zhu@mediatek.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ov8856.yaml ++F: drivers/media/i2c/ov8856.c ++ ++OMNIVISION OV9282 SENSOR DRIVER ++M: Paul J. Murphy <paul.j.murphy@intel.com> ++M: Daniele Alessandrelli <daniele.alessandrelli@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ovti,ov9282.yaml ++F: drivers/media/i2c/ov9282.c ++ ++OMNIVISION OV9640 SENSOR DRIVER ++M: Petr Cvek <petrcvekcz@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/ov9640.* ++ ++OMNIVISION OV9650 SENSOR DRIVER ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++R: Akinobu Mita <akinobu.mita@gmail.com> ++R: Sylwester Nawrocki <s.nawrocki@samsung.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/ov9650.txt ++F: drivers/media/i2c/ov9650.c ++ ++OMNIVISION OV9734 SENSOR DRIVER ++M: Tianshu Qiu <tian.shu.qiu@intel.com> ++R: Bingbu Cao <bingbu.cao@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/ov9734.c ++ ++ONENAND FLASH DRIVER ++M: Kyungmin Park <kyungmin.park@samsung.com> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++F: drivers/mtd/nand/onenand/ ++F: include/linux/mtd/onenand*.h ++ ++ONION OMEGA2+ BOARD ++M: Harvey Hunt <harveyhuntnexus@gmail.com> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: arch/mips/boot/dts/ralink/omega2p.dts ++ ++OP-TEE DRIVER ++M: Jens Wiklander <jens.wiklander@linaro.org> ++L: op-tee@lists.trustedfirmware.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-bus-optee-devices ++F: drivers/tee/optee/ ++ ++OP-TEE RANDOM NUMBER GENERATOR (RNG) DRIVER ++M: Sumit Garg <sumit.garg@linaro.org> ++L: op-tee@lists.trustedfirmware.org ++S: Maintained ++F: drivers/char/hw_random/optee-rng.c ++ ++OPA-VNIC DRIVER ++M: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> ++M: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++F: drivers/infiniband/ulp/opa_vnic ++ ++OPEN FIRMWARE AND DEVICE TREE OVERLAYS ++M: Pantelis Antoniou <pantelis.antoniou@konsulko.com> ++M: Frank Rowand <frowand.list@gmail.com> ++L: devicetree@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/dynamic-resolution-notes.rst ++F: Documentation/devicetree/overlay-notes.rst ++F: drivers/of/overlay.c ++F: drivers/of/resolver.c ++K: of_overlay_notifier_ ++ ++OPEN FIRMWARE AND FLATTENED DEVICE TREE ++M: Rob Herring <robh+dt@kernel.org> ++M: Frank Rowand <frowand.list@gmail.com> ++L: devicetree@vger.kernel.org ++S: Maintained ++W: http://www.devicetree.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git ++F: Documentation/ABI/testing/sysfs-firmware-ofw ++F: drivers/of/ ++F: include/linux/of*.h ++F: scripts/dtc/ ++ ++OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS ++M: Rob Herring <robh+dt@kernel.org> ++L: devicetree@vger.kernel.org ++S: Maintained ++Q: http://patchwork.ozlabs.org/project/devicetree-bindings/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git ++F: Documentation/devicetree/ ++F: arch/*/boot/dts/ ++F: include/dt-bindings/ ++ ++OPENCOMPUTE PTP CLOCK DRIVER ++M: Jonathan Lemon <jonathan.lemon@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/ptp/ptp_ocp.c ++ ++OPENCORES I2C BUS DRIVER ++M: Peter Korsgaard <peter@korsgaard.com> ++M: Andrew Lunn <andrew@lunn.ch> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-ocores.txt ++F: Documentation/i2c/busses/i2c-ocores.rst ++F: drivers/i2c/busses/i2c-ocores.c ++F: include/linux/platform_data/i2c-ocores.h ++ ++OPENRISC ARCHITECTURE ++M: Jonas Bonn <jonas@southpole.se> ++M: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> ++M: Stafford Horne <shorne@gmail.com> ++L: openrisc@lists.librecores.org ++S: Maintained ++W: http://openrisc.io ++T: git git://github.com/openrisc/linux.git ++F: Documentation/devicetree/bindings/openrisc/ ++F: Documentation/openrisc/ ++F: arch/openrisc/ ++F: drivers/irqchip/irq-ompic.c ++F: drivers/irqchip/irq-or1k-* ++ ++OPENVSWITCH ++M: Pravin B Shelar <pshelar@ovn.org> ++L: netdev@vger.kernel.org ++L: dev@openvswitch.org ++S: Maintained ++W: http://openvswitch.org ++F: include/uapi/linux/openvswitch.h ++F: net/openvswitch/ ++ ++OPERATING PERFORMANCE POINTS (OPP) ++M: Viresh Kumar <vireshk@kernel.org> ++M: Nishanth Menon <nm@ti.com> ++M: Stephen Boyd <sboyd@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git ++F: Documentation/devicetree/bindings/opp/ ++F: Documentation/power/opp.rst ++F: drivers/opp/ ++F: include/linux/pm_opp.h ++ ++OPL4 DRIVER ++M: Clemens Ladisch <clemens@ladisch.de> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git ++F: sound/drivers/opl4/ ++ ++ORACLE CLUSTER FILESYSTEM 2 (OCFS2) ++M: Mark Fasheh <mark@fasheh.com> ++M: Joel Becker <jlbec@evilplan.org> ++M: Joseph Qi <joseph.qi@linux.alibaba.com> ++L: ocfs2-devel@oss.oracle.com (moderated for non-subscribers) ++S: Supported ++W: http://ocfs2.wiki.kernel.org ++F: Documentation/filesystems/dlmfs.rst ++F: Documentation/filesystems/ocfs2.rst ++F: fs/ocfs2/ ++ ++ORANGEFS FILESYSTEM ++M: Mike Marshall <hubcap@omnibond.com> ++R: Martin Brandenburg <martin@omnibond.com> ++L: devel@lists.orangefs.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux.git ++F: Documentation/filesystems/orangefs.rst ++F: fs/orangefs/ ++ ++ORINOCO DRIVER ++L: linux-wireless@vger.kernel.org ++S: Orphan ++W: https://wireless.wiki.kernel.org/en/users/Drivers/orinoco ++W: http://www.nongnu.org/orinoco/ ++F: drivers/net/wireless/intersil/orinoco/ ++ ++OV2659 OMNIVISION SENSOR DRIVER ++M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git ++F: drivers/media/i2c/ov2659.c ++F: include/media/i2c/ov2659.h ++ ++OVERLAY FILESYSTEM ++M: Miklos Szeredi <miklos@szeredi.hu> ++L: linux-unionfs@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git ++F: Documentation/filesystems/overlayfs.rst ++F: fs/overlayfs/ ++ ++P54 WIRELESS DRIVER ++M: Christian Lamparter <chunkeey@googlemail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++W: https://wireless.wiki.kernel.org/en/users/Drivers/p54 ++F: drivers/net/wireless/intersil/p54/ ++ ++PACKING ++M: Vladimir Oltean <olteanv@gmail.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/core-api/packing.rst ++F: include/linux/packing.h ++F: lib/packing.c ++ ++PADATA PARALLEL EXECUTION MECHANISM ++M: Steffen Klassert <steffen.klassert@secunet.com> ++M: Daniel Jordan <daniel.m.jordan@oracle.com> ++L: linux-crypto@vger.kernel.org ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/core-api/padata.rst ++F: include/linux/padata.h ++F: kernel/padata.c ++ ++PAGE POOL ++M: Jesper Dangaard Brouer <hawk@kernel.org> ++M: Ilias Apalodimas <ilias.apalodimas@linaro.org> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/page_pool.rst ++F: include/net/page_pool.h ++F: include/trace/events/page_pool.h ++F: net/core/page_pool.c ++ ++PANASONIC LAPTOP ACPI EXTRAS DRIVER ++M: Kenneth Chan <kenneth.t.chan@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/panasonic-laptop.c ++ ++PARALLAX PING IIO SENSOR DRIVER ++M: Andreas Klinger <ak@it-klinger.de> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml ++F: drivers/iio/proximity/ping.c ++ ++PARALLEL LCD/KEYPAD PANEL DRIVER ++M: Willy Tarreau <willy@haproxy.com> ++M: Ksenija Stanojevic <ksenija.stanojevic@gmail.com> ++S: Odd Fixes ++F: Documentation/admin-guide/lcd-panel-cgram.rst ++F: drivers/auxdisplay/panel.c ++ ++PARALLEL PORT SUBSYSTEM ++M: Sudip Mukherjee <sudipm.mukherjee@gmail.com> ++M: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> ++L: linux-parport@lists.infradead.org (subscribers-only) ++S: Maintained ++F: Documentation/driver-api/parport*.rst ++F: drivers/char/ppdev.c ++F: drivers/parport/ ++F: include/linux/parport*.h ++F: include/uapi/linux/ppdev.h ++ ++PARAVIRT_OPS INTERFACE ++M: Juergen Gross <jgross@suse.com> ++M: Deep Shah <sdeep@vmware.com> ++M: "VMware, Inc." <pv-drivers@vmware.com> ++L: virtualization@lists.linux-foundation.org ++S: Supported ++F: Documentation/virt/paravirt_ops.rst ++F: arch/*/include/asm/paravirt*.h ++F: arch/*/kernel/paravirt* ++F: include/linux/hypervisor.h ++ ++PARIDE DRIVERS FOR PARALLEL PORT IDE DEVICES ++M: Tim Waugh <tim@cyberelk.net> ++L: linux-parport@lists.infradead.org (subscribers-only) ++S: Maintained ++F: Documentation/admin-guide/blockdev/paride.rst ++F: drivers/block/paride/ ++ ++PARISC ARCHITECTURE ++M: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> ++M: Helge Deller <deller@gmx.de> ++L: linux-parisc@vger.kernel.org ++S: Maintained ++W: https://parisc.wiki.kernel.org ++Q: http://patchwork.kernel.org/project/linux-parisc/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git ++F: Documentation/parisc/ ++F: arch/parisc/ ++F: drivers/char/agp/parisc-agp.c ++F: drivers/input/misc/hp_sdc_rtc.c ++F: drivers/input/serio/gscps2.c ++F: drivers/input/serio/hp_sdc* ++F: drivers/parisc/ ++F: drivers/parport/parport_gsc.* ++F: drivers/tty/serial/8250/8250_gsc.c ++F: drivers/video/console/sti* ++F: drivers/video/fbdev/sti* ++F: drivers/video/logo/logo_parisc* ++F: include/linux/hp_sdc.h ++ ++PARMAN ++M: Jiri Pirko <jiri@nvidia.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: include/linux/parman.h ++F: lib/parman.c ++F: lib/test_parman.c ++ ++PC ENGINES APU BOARD DRIVER ++M: Enrico Weigelt, metux IT consult <info@metux.net> ++S: Maintained ++F: drivers/platform/x86/pcengines-apuv2.c ++ ++PC87360 HARDWARE MONITORING DRIVER ++M: Jim Cromie <jim.cromie@gmail.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/pc87360.rst ++F: drivers/hwmon/pc87360.c ++ ++PC8736x GPIO DRIVER ++M: Jim Cromie <jim.cromie@gmail.com> ++S: Maintained ++F: drivers/char/pc8736x_gpio.c ++ ++PC87427 HARDWARE MONITORING DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/pc87427.rst ++F: drivers/hwmon/pc87427.c ++ ++PCA9532 LED DRIVER ++M: Riku Voipio <riku.voipio@iki.fi> ++S: Maintained ++F: drivers/leds/leds-pca9532.c ++F: include/linux/leds-pca9532.h ++ ++PCA9541 I2C BUS MASTER SELECTOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: drivers/i2c/muxes/i2c-mux-pca9541.c ++ ++PCDP - PRIMARY CONSOLE AND DEBUG PORT ++M: Khalid Aziz <khalid@gonehiking.org> ++S: Maintained ++F: drivers/firmware/pcdp.* ++ ++PCI DRIVER FOR AARDVARK (Marvell Armada 3700) ++M: Thomas Petazzoni <thomas.petazzoni@bootlin.com> ++M: Pali Rohár <pali@kernel.org> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/pci/aardvark-pci.txt ++F: drivers/pci/controller/pci-aardvark.c ++ ++PCI DRIVER FOR ALTERA PCIE IP ++M: Joyce Ooi <joyce.ooi@intel.com> ++L: linux-pci@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/pci/altera-pcie.txt ++F: drivers/pci/controller/pcie-altera.c ++ ++PCI DRIVER FOR APPLIEDMICRO XGENE ++M: Toan Le <toan@os.amperecomputing.com> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/pci/xgene-pci.txt ++F: drivers/pci/controller/pci-xgene.c ++ ++PCI DRIVER FOR ARM VERSATILE PLATFORM ++M: Rob Herring <robh@kernel.org> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/pci/versatile.yaml ++F: drivers/pci/controller/pci-versatile.c ++ ++PCI DRIVER FOR ARMADA 8K ++M: Thomas Petazzoni <thomas.petazzoni@bootlin.com> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/pci/pci-armada8k.txt ++F: drivers/pci/controller/dwc/pcie-armada8k.c ++ ++PCI DRIVER FOR CADENCE PCIE IP ++M: Tom Joseph <tjoseph@cadence.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/cdns,* ++F: drivers/pci/controller/cadence/ ++ ++PCI DRIVER FOR FREESCALE LAYERSCAPE ++M: Minghuan Lian <minghuan.Lian@nxp.com> ++M: Mingkai Hu <mingkai.hu@nxp.com> ++M: Roy Zang <roy.zang@nxp.com> ++L: linuxppc-dev@lists.ozlabs.org ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/pci/controller/dwc/*layerscape* ++ ++PCI DRIVER FOR GENERIC OF HOSTS ++M: Will Deacon <will@kernel.org> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/pci/host-generic-pci.yaml ++F: drivers/pci/controller/pci-host-common.c ++F: drivers/pci/controller/pci-host-generic.c ++ ++PCI DRIVER FOR IMX6 ++M: Richard Zhu <hongxing.zhu@nxp.com> ++M: Lucas Stach <l.stach@pengutronix.de> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml ++F: drivers/pci/controller/dwc/*imx6* ++ ++PCI DRIVER FOR FU740 ++M: Paul Walmsley <paul.walmsley@sifive.com> ++M: Greentime Hu <greentime.hu@sifive.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/sifive,fu740-pcie.yaml ++F: drivers/pci/controller/dwc/pcie-fu740.c ++ ++PCI DRIVER FOR INTEL IXP4XX ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++F: Documentation/devicetree/bindings/pci/intel,ixp4xx-pci.yaml ++F: drivers/pci/controller/pci-ixp4xx.c ++ ++PCI DRIVER FOR INTEL VOLUME MANAGEMENT DEVICE (VMD) ++M: Nirmal Patel <nirmal.patel@linux.intel.com> ++R: Jonathan Derrick <jonathan.derrick@linux.dev> ++L: linux-pci@vger.kernel.org ++S: Supported ++F: drivers/pci/controller/vmd.c ++ ++PCI DRIVER FOR MICROSEMI SWITCHTEC ++M: Kurt Schwemmer <kurt.schwemmer@microsemi.com> ++M: Logan Gunthorpe <logang@deltatee.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-class-switchtec ++F: Documentation/driver-api/switchtec.rst ++F: drivers/ntb/hw/mscc/ ++F: drivers/pci/switch/switchtec* ++F: include/linux/switchtec.h ++F: include/uapi/linux/switchtec_ioctl.h ++ ++PCI DRIVER FOR MOBIVEIL PCIE IP ++M: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in> ++M: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> ++L: linux-pci@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/pci/mobiveil-pcie.txt ++F: drivers/pci/controller/mobiveil/pcie-mobiveil* ++ ++PCI DRIVER FOR MVEBU (Marvell Armada 370 and Armada XP SOC support) ++M: Thomas Petazzoni <thomas.petazzoni@bootlin.com> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/pci/controller/*mvebu* ++ ++PCI DRIVER FOR NVIDIA TEGRA ++M: Thierry Reding <thierry.reding@gmail.com> ++L: linux-tegra@vger.kernel.org ++L: linux-pci@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt ++F: drivers/pci/controller/pci-tegra.c ++ ++PCI DRIVER FOR NXP LAYERSCAPE GEN4 CONTROLLER ++M: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/pci/layerscape-pcie-gen4.txt ++F: drivers/pci/controller/mobiveil/pcie-layerscape-gen4.c ++ ++PCI DRIVER FOR RENESAS R-CAR ++M: Marek Vasut <marek.vasut+renesas@gmail.com> ++M: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> ++L: linux-pci@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/*rcar* ++F: drivers/pci/controller/*rcar* ++ ++PCI DRIVER FOR SAMSUNG EXYNOS ++M: Jingoo Han <jingoohan1@gmail.com> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++F: drivers/pci/controller/dwc/pci-exynos.c ++ ++PCI DRIVER FOR SYNOPSYS DESIGNWARE ++M: Jingoo Han <jingoohan1@gmail.com> ++M: Gustavo Pimentel <gustavo.pimentel@synopsys.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml ++F: Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml ++F: drivers/pci/controller/dwc/*designware* ++ ++PCI DRIVER FOR TI DRA7XX/J721E ++M: Kishon Vijay Abraham I <kishon@ti.com> ++L: linux-omap@vger.kernel.org ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: Documentation/devicetree/bindings/pci/ti-pci.txt ++F: drivers/pci/controller/cadence/pci-j721e.c ++F: drivers/pci/controller/dwc/pci-dra7xx.c ++ ++PCI DRIVER FOR V3 SEMICONDUCTOR V360EPC ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/v3-v360epc-pci.txt ++F: drivers/pci/controller/pci-v3-semi.c ++ ++PCI ENDPOINT SUBSYSTEM ++M: Kishon Vijay Abraham I <kishon@ti.com> ++M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> ++R: Krzysztof Wilczyński <kw@linux.com> ++L: linux-pci@vger.kernel.org ++S: Supported ++F: Documentation/PCI/endpoint/* ++F: Documentation/misc-devices/pci-endpoint-test.rst ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kishon/pci-endpoint.git ++F: drivers/misc/pci_endpoint_test.c ++F: drivers/pci/endpoint/ ++F: tools/pci/ ++ ++PCI ENHANCED ERROR HANDLING (EEH) FOR POWERPC ++M: Russell Currey <ruscur@russell.cc> ++M: Oliver O'Halloran <oohall@gmail.com> ++L: linuxppc-dev@lists.ozlabs.org ++S: Supported ++F: Documentation/PCI/pci-error-recovery.rst ++F: Documentation/powerpc/eeh-pci-error-recovery.rst ++F: arch/powerpc/include/*/eeh*.h ++F: arch/powerpc/kernel/eeh*.c ++F: arch/powerpc/platforms/*/eeh*.c ++F: drivers/pci/pcie/aer.c ++F: drivers/pci/pcie/dpc.c ++F: drivers/pci/pcie/err.c ++ ++PCI ERROR RECOVERY ++M: Linas Vepstas <linasvepstas@gmail.com> ++L: linux-pci@vger.kernel.org ++S: Supported ++F: Documentation/PCI/pci-error-recovery.rst ++ ++PCI MSI DRIVER FOR ALTERA MSI IP ++M: Joyce Ooi <joyce.ooi@intel.com> ++L: linux-pci@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/pci/altera-pcie-msi.txt ++F: drivers/pci/controller/pcie-altera-msi.c ++ ++PCI MSI DRIVER FOR APPLIEDMICRO XGENE ++M: Toan Le <toan@os.amperecomputing.com> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/pci/xgene-pci-msi.txt ++F: drivers/pci/controller/pci-xgene-msi.c ++ ++PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS ++M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> ++R: Rob Herring <robh@kernel.org> ++R: Krzysztof Wilczyński <kw@linux.com> ++L: linux-pci@vger.kernel.org ++S: Supported ++Q: http://patchwork.ozlabs.org/project/linux-pci/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git/ ++F: drivers/pci/controller/ ++ ++PCI SUBSYSTEM ++M: Bjorn Helgaas <bhelgaas@google.com> ++L: linux-pci@vger.kernel.org ++S: Supported ++Q: http://patchwork.ozlabs.org/project/linux-pci/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git ++F: Documentation/PCI/ ++F: Documentation/devicetree/bindings/pci/ ++F: arch/x86/kernel/early-quirks.c ++F: arch/x86/kernel/quirks.c ++F: arch/x86/pci/ ++F: drivers/acpi/pci* ++F: drivers/pci/ ++F: include/asm-generic/pci* ++F: include/linux/of_pci.h ++F: include/linux/pci* ++F: include/uapi/linux/pci* ++F: lib/pci* ++ ++PCIE DRIVER FOR AMAZON ANNAPURNA LABS ++M: Jonathan Chocron <jonnyc@amazon.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/pcie-al.txt ++F: drivers/pci/controller/dwc/pcie-al.c ++ ++PCIE DRIVER FOR AMLOGIC MESON ++M: Yue Wang <yue.wang@Amlogic.com> ++L: linux-pci@vger.kernel.org ++L: linux-amlogic@lists.infradead.org ++S: Maintained ++F: drivers/pci/controller/dwc/pci-meson.c ++ ++PCIE DRIVER FOR AXIS ARTPEC ++M: Jesper Nilsson <jesper.nilsson@axis.com> ++L: linux-arm-kernel@axis.com ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/axis,artpec* ++F: drivers/pci/controller/dwc/*artpec* ++ ++PCIE DRIVER FOR CAVIUM THUNDERX ++M: Robert Richter <rric@kernel.org> ++L: linux-pci@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Odd Fixes ++F: drivers/pci/controller/pci-thunder-* ++ ++PCIE DRIVER FOR HISILICON ++M: Zhou Wang <wangzhou1@hisilicon.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: drivers/pci/controller/dwc/pcie-hisi.c ++ ++PCIE DRIVER FOR HISILICON KIRIN ++M: Xiaowei Song <songxiaowei@hisilicon.com> ++M: Binghui Wang <wangbinghui@hisilicon.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml ++F: drivers/pci/controller/dwc/pcie-kirin.c ++ ++PCIE DRIVER FOR HISILICON STB ++M: Shawn Guo <shawn.guo@linaro.org> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/hisilicon-histb-pcie.txt ++F: drivers/pci/controller/dwc/pcie-histb.c ++ ++PCIE DRIVER FOR INTEL KEEM BAY ++M: Srikanth Thokala <srikanth.thokala@intel.com> ++L: linux-pci@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/pci/intel,keembay-pcie* ++F: drivers/pci/controller/dwc/pcie-keembay.c ++ ++PCIE DRIVER FOR INTEL LGM GW SOC ++M: Rahul Tanwar <rtanwar@maxlinear.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/intel-gw-pcie.yaml ++F: drivers/pci/controller/dwc/pcie-intel-gw.c ++ ++PCIE DRIVER FOR MEDIATEK ++M: Ryder Lee <ryder.lee@mediatek.com> ++M: Jianjun Wang <jianjun.wang@mediatek.com> ++L: linux-pci@vger.kernel.org ++L: linux-mediatek@lists.infradead.org ++S: Supported ++F: Documentation/devicetree/bindings/pci/mediatek* ++F: drivers/pci/controller/*mediatek* ++ ++PCIE DRIVER FOR MICROCHIP ++M: Daire McNamara <daire.mcnamara@microchip.com> ++L: linux-pci@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/pci/microchip* ++F: drivers/pci/controller/*microchip* ++ ++PCIE DRIVER FOR QUALCOMM MSM ++M: Stanimir Varbanov <svarbanov@mm-sol.com> ++L: linux-pci@vger.kernel.org ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: drivers/pci/controller/dwc/*qcom* ++ ++PCIE DRIVER FOR ROCKCHIP ++M: Shawn Lin <shawn.lin@rock-chips.com> ++L: linux-pci@vger.kernel.org ++L: linux-rockchip@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/rockchip-pcie* ++F: drivers/pci/controller/pcie-rockchip* ++ ++PCIE DRIVER FOR SOCIONEXT UNIPHIER ++M: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pci/uniphier-pcie* ++F: drivers/pci/controller/dwc/pcie-uniphier* ++ ++PCIE DRIVER FOR ST SPEAR13XX ++M: Pratyush Anand <pratyush.anand@gmail.com> ++L: linux-pci@vger.kernel.org ++S: Maintained ++F: drivers/pci/controller/dwc/*spear* ++ ++PCMCIA SUBSYSTEM ++M: Dominik Brodowski <linux@dominikbrodowski.net> ++S: Odd Fixes ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia.git ++F: Documentation/pcmcia/ ++F: drivers/pcmcia/ ++F: include/pcmcia/ ++F: tools/pcmcia/ ++ ++PCNET32 NETWORK DRIVER ++M: Don Fry <pcnet32@frontier.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/amd/pcnet32.c ++ ++PCRYPT PARALLEL CRYPTO ENGINE ++M: Steffen Klassert <steffen.klassert@secunet.com> ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: crypto/pcrypt.c ++F: include/crypto/pcrypt.h ++ ++PEAQ WMI HOTKEYS DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/peaq-wmi.c ++ ++PENSANDO ETHERNET DRIVERS ++M: Shannon Nelson <snelson@pensando.io> ++M: drivers@pensando.io ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/device_drivers/ethernet/pensando/ionic.rst ++F: drivers/net/ethernet/pensando/ ++ ++PER-CPU MEMORY ALLOCATOR ++M: Dennis Zhou <dennis@kernel.org> ++M: Tejun Heo <tj@kernel.org> ++M: Christoph Lameter <cl@linux.com> ++L: linux-mm@kvack.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git ++F: arch/*/include/asm/percpu.h ++F: include/linux/percpu*.h ++F: lib/percpu*.c ++F: mm/percpu*.c ++ ++PER-TASK DELAY ACCOUNTING ++M: Balbir Singh <bsingharora@gmail.com> ++S: Maintained ++F: include/linux/delayacct.h ++F: kernel/delayacct.c ++ ++PERFORMANCE EVENTS SUBSYSTEM ++M: Peter Zijlstra <peterz@infradead.org> ++M: Ingo Molnar <mingo@redhat.com> ++M: Arnaldo Carvalho de Melo <acme@kernel.org> ++R: Mark Rutland <mark.rutland@arm.com> ++R: Alexander Shishkin <alexander.shishkin@linux.intel.com> ++R: Jiri Olsa <jolsa@redhat.com> ++R: Namhyung Kim <namhyung@kernel.org> ++L: linux-perf-users@vger.kernel.org ++L: linux-kernel@vger.kernel.org ++S: Supported ++W: https://perf.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core ++F: arch/*/events/* ++F: arch/*/events/*/* ++F: arch/*/include/asm/perf_event.h ++F: arch/*/kernel/*/*/perf_event*.c ++F: arch/*/kernel/*/perf_event*.c ++F: arch/*/kernel/perf_callchain.c ++F: arch/*/kernel/perf_event*.c ++F: include/linux/perf_event.h ++F: include/uapi/linux/perf_event.h ++F: kernel/events/* ++F: tools/lib/perf/ ++F: tools/perf/ ++ ++PERFORMANCE EVENTS TOOLING ARM64 ++R: John Garry <john.garry@huawei.com> ++R: Will Deacon <will@kernel.org> ++R: Mathieu Poirier <mathieu.poirier@linaro.org> ++R: Leo Yan <leo.yan@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: tools/build/feature/test-libopencsd.c ++F: tools/perf/arch/arm*/ ++F: tools/perf/pmu-events/arch/arm64/ ++F: tools/perf/util/arm-spe* ++F: tools/perf/util/cs-etm* ++ ++PERSONALITY HANDLING ++M: Christoph Hellwig <hch@infradead.org> ++L: linux-abi-devel@lists.sourceforge.net ++S: Maintained ++F: include/linux/personality.h ++F: include/uapi/linux/personality.h ++ ++PHOENIX RC FLIGHT CONTROLLER ADAPTER ++M: Marcus Folkesson <marcus.folkesson@gmail.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: Documentation/input/devices/pxrc.rst ++F: drivers/input/joystick/pxrc.c ++ ++PHONET PROTOCOL ++M: Remi Denis-Courmont <courmisch@gmail.com> ++S: Supported ++F: Documentation/networking/phonet.rst ++F: include/linux/phonet.h ++F: include/net/phonet/ ++F: include/uapi/linux/phonet.h ++F: net/phonet/ ++ ++PHRAM MTD DRIVER ++M: Joern Engel <joern@lazybastard.org> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++F: drivers/mtd/devices/phram.c ++ ++PICOLCD HID DRIVER ++M: Bruno Prémont <bonbons@linux-vserver.org> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/hid/hid-picolcd* ++ ++PIDFD API ++M: Christian Brauner <christian@brauner.io> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git ++F: samples/pidfd/ ++F: tools/testing/selftests/clone3/ ++F: tools/testing/selftests/pid_namespace/ ++F: tools/testing/selftests/pidfd/ ++K: (?i)pidfd ++K: (?i)clone3 ++K: \b(clone_args|kernel_clone_args)\b ++ ++PIN CONTROL SUBSYSTEM ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git ++F: Documentation/devicetree/bindings/pinctrl/ ++F: Documentation/driver-api/pin-control.rst ++F: drivers/pinctrl/ ++F: include/linux/pinctrl/ ++ ++PIN CONTROLLER - AMD ++M: Basavaraj Natikar <Basavaraj.Natikar@amd.com> ++M: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> ++S: Maintained ++F: drivers/pinctrl/pinctrl-amd.c ++ ++PIN CONTROLLER - FREESCALE ++M: Dong Aisheng <aisheng.dong@nxp.com> ++M: Fabio Estevam <festevam@gmail.com> ++M: Shawn Guo <shawnguo@kernel.org> ++M: Stefan Agner <stefan@agner.ch> ++R: Pengutronix Kernel Team <kernel@pengutronix.de> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pinctrl/fsl,* ++F: drivers/pinctrl/freescale/ ++ ++PIN CONTROLLER - INTEL ++M: Mika Westerberg <mika.westerberg@linux.intel.com> ++M: Andy Shevchenko <andy@kernel.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel.git ++F: drivers/pinctrl/intel/ ++ ++PIN CONTROLLER - KEEMBAY ++M: Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com> ++S: Supported ++F: drivers/pinctrl/pinctrl-keembay* ++ ++PIN CONTROLLER - MEDIATEK ++M: Sean Wang <sean.wang@kernel.org> ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/pinctrl/mediatek,mt65xx-pinctrl.yaml ++F: Documentation/devicetree/bindings/pinctrl/mediatek,mt6797-pinctrl.yaml ++F: Documentation/devicetree/bindings/pinctrl/mediatek,mt7622-pinctrl.yaml ++F: Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml ++F: drivers/pinctrl/mediatek/ ++ ++PIN CONTROLLER - MICROCHIP AT91 ++M: Ludovic Desroches <ludovic.desroches@microchip.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-gpio@vger.kernel.org ++S: Supported ++F: drivers/gpio/gpio-sama5d2-piobu.c ++F: drivers/pinctrl/pinctrl-at91* ++ ++PIN CONTROLLER - QUALCOMM ++M: Bjorn Andersson <bjorn.andersson@linaro.org> ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pinctrl/qcom,*.txt ++F: drivers/pinctrl/qcom/ ++ ++PIN CONTROLLER - RENESAS ++M: Geert Uytterhoeven <geert+renesas@glider.be> ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git renesas-pinctrl ++F: Documentation/devicetree/bindings/pinctrl/renesas,* ++F: drivers/pinctrl/renesas/ ++ ++PIN CONTROLLER - SAMSUNG ++M: Tomasz Figa <tomasz.figa@gmail.com> ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++M: Sylwester Nawrocki <s.nawrocki@samsung.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++Q: https://patchwork.kernel.org/project/linux-samsung-soc/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung.git ++F: Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt ++F: drivers/pinctrl/samsung/ ++F: include/dt-bindings/pinctrl/samsung.h ++ ++PIN CONTROLLER - SINGLE ++M: Tony Lindgren <tony@atomide.com> ++M: Haojian Zhuang <haojian.zhuang@linaro.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: drivers/pinctrl/pinctrl-single.c ++ ++PIN CONTROLLER - ST SPEAR ++M: Viresh Kumar <vireshk@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.st.com/spear ++F: drivers/pinctrl/spear/ ++ ++PKTCDVD DRIVER ++M: linux-block@vger.kernel.org ++S: Orphan ++F: drivers/block/pktcdvd.c ++F: include/linux/pktcdvd.h ++F: include/uapi/linux/pktcdvd.h ++ ++PLANTOWER PMS7003 AIR POLLUTION SENSOR DRIVER ++M: Tomasz Duszynski <tduszyns@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml ++F: drivers/iio/chemical/pms7003.c ++ ++PLDMFW LIBRARY ++M: Jacob Keller <jacob.e.keller@intel.com> ++S: Maintained ++F: Documentation/driver-api/pldmfw/ ++F: include/linux/pldmfw.h ++F: lib/pldmfw/ ++ ++PLX DMA DRIVER ++M: Logan Gunthorpe <logang@deltatee.com> ++S: Maintained ++F: drivers/dma/plx_dma.c ++ ++PM6764TR DRIVER ++M: Charles Hsu <hsu.yungteng@gmail.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/pm6764tr.rst ++F: drivers/hwmon/pmbus/pm6764tr.c ++ ++PM-GRAPH UTILITY ++M: "Todd E Brandt" <todd.e.brandt@linux.intel.com> ++L: linux-pm@vger.kernel.org ++S: Supported ++W: https://01.org/pm-graph ++B: https://bugzilla.kernel.org/buglist.cgi?component=pm-graph&product=Tools ++T: git git://github.com/intel/pm-graph ++F: tools/power/pm-graph ++ ++PMBUS HARDWARE MONITORING DRIVERS ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++W: http://hwmon.wiki.kernel.org/ ++W: http://www.roeck-us.net/linux/drivers/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git ++F: Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt ++F: Documentation/devicetree/bindings/hwmon/ltc2978.txt ++F: Documentation/devicetree/bindings/hwmon/max31785.txt ++F: Documentation/hwmon/adm1275.rst ++F: Documentation/hwmon/ibm-cffps.rst ++F: Documentation/hwmon/ir35221.rst ++F: Documentation/hwmon/lm25066.rst ++F: Documentation/hwmon/ltc2978.rst ++F: Documentation/hwmon/ltc3815.rst ++F: Documentation/hwmon/max16064.rst ++F: Documentation/hwmon/max20751.rst ++F: Documentation/hwmon/max31785.rst ++F: Documentation/hwmon/max34440.rst ++F: Documentation/hwmon/max8688.rst ++F: Documentation/hwmon/pmbus-core.rst ++F: Documentation/hwmon/pmbus.rst ++F: Documentation/hwmon/tps40422.rst ++F: Documentation/hwmon/ucd9000.rst ++F: Documentation/hwmon/ucd9200.rst ++F: Documentation/hwmon/zl6100.rst ++F: drivers/hwmon/pmbus/ ++F: include/linux/pmbus.h ++ ++PMC SIERRA MaxRAID DRIVER ++L: linux-scsi@vger.kernel.org ++S: Orphan ++W: http://www.pmc-sierra.com/ ++F: drivers/scsi/pmcraid.* ++ ++PMC SIERRA PM8001 DRIVER ++M: Jack Wang <jinpu.wang@cloud.ionos.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/pm8001/ ++ ++PNI RM3100 IIO DRIVER ++M: Song Qiang <songqiang1304521@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.yaml ++F: drivers/iio/magnetometer/rm3100* ++ ++PNP SUPPORT ++M: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> ++L: linux-acpi@vger.kernel.org ++S: Maintained ++F: drivers/pnp/ ++F: include/linux/pnp.h ++ ++POSIX CLOCKS and TIMERS ++M: Thomas Gleixner <tglx@linutronix.de> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core ++F: fs/timerfd.c ++F: include/linux/time_namespace.h ++F: include/linux/timer* ++F: kernel/time/*timer* ++F: kernel/time/namespace.c ++ ++POWER MANAGEMENT CORE ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Supported ++B: https://bugzilla.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm ++F: drivers/base/power/ ++F: drivers/powercap/ ++F: include/linux/intel_rapl.h ++F: include/linux/pm.h ++F: include/linux/pm_* ++F: include/linux/powercap.h ++F: kernel/configs/nopm.config ++ ++DYNAMIC THERMAL POWER MANAGEMENT (DTPM) ++M: Daniel Lezcano <daniel.lezcano@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Supported ++B: https://bugzilla.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm ++F: drivers/powercap/dtpm* ++F: include/linux/dtpm.h ++ ++POWER STATE COORDINATION INTERFACE (PSCI) ++M: Mark Rutland <mark.rutland@arm.com> ++M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/firmware/psci/ ++F: include/linux/psci.h ++F: include/uapi/linux/psci.h ++ ++POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS ++M: Sebastian Reichel <sre@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git ++F: Documentation/ABI/testing/sysfs-class-power ++F: Documentation/devicetree/bindings/power/supply/ ++F: drivers/power/supply/ ++F: include/linux/power/ ++F: include/linux/power_supply.h ++ ++POWERNV OPERATOR PANEL LCD DISPLAY DRIVER ++M: Suraj Jitindar Singh <sjitindarsingh@gmail.com> ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/char/powernv-op-panel.c ++ ++PPP OVER ATM (RFC 2364) ++M: Mitchell Blank Jr <mitch@sfgoth.com> ++S: Maintained ++F: include/uapi/linux/atmppp.h ++F: net/atm/pppoatm.c ++ ++PPP OVER ETHERNET ++M: Michal Ostrowski <mostrows@earthlink.net> ++S: Maintained ++F: drivers/net/ppp/pppoe.c ++F: drivers/net/ppp/pppox.c ++ ++PPP OVER L2TP ++M: James Chapman <jchapman@katalix.com> ++S: Maintained ++F: include/linux/if_pppol2tp.h ++F: include/uapi/linux/if_pppol2tp.h ++F: net/l2tp/l2tp_ppp.c ++ ++PPP PROTOCOL DRIVERS AND COMPRESSORS ++M: Paul Mackerras <paulus@samba.org> ++L: linux-ppp@vger.kernel.org ++S: Maintained ++F: drivers/net/ppp/ppp_* ++ ++PPS SUPPORT ++M: Rodolfo Giometti <giometti@enneenne.com> ++L: linuxpps@ml.enneenne.com (subscribers-only) ++S: Maintained ++W: http://wiki.enneenne.com/index.php/LinuxPPS_support ++F: Documentation/ABI/testing/sysfs-pps ++F: Documentation/devicetree/bindings/pps/pps-gpio.txt ++F: Documentation/driver-api/pps.rst ++F: drivers/pps/ ++F: include/linux/pps*.h ++F: include/uapi/linux/pps.h ++ ++PPTP DRIVER ++M: Dmitry Kozlov <xeb@mail.ru> ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://sourceforge.net/projects/accel-pptp ++F: drivers/net/ppp/pptp.c ++ ++PRESSURE STALL INFORMATION (PSI) ++M: Johannes Weiner <hannes@cmpxchg.org> ++S: Maintained ++F: include/linux/psi* ++F: kernel/sched/psi.c ++ ++PRINTK ++M: Petr Mladek <pmladek@suse.com> ++M: Sergey Senozhatsky <senozhatsky@chromium.org> ++R: Steven Rostedt <rostedt@goodmis.org> ++R: John Ogness <john.ogness@linutronix.de> ++S: Maintained ++F: include/linux/printk.h ++F: kernel/printk/ ++ ++PRINTK INDEXING ++R: Chris Down <chris@chrisdown.name> ++S: Maintained ++F: kernel/printk/index.c ++ ++PROC FILESYSTEM ++L: linux-kernel@vger.kernel.org ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++F: Documentation/filesystems/proc.rst ++F: fs/proc/ ++F: include/linux/proc_fs.h ++F: tools/testing/selftests/proc/ ++ ++PROC SYSCTL ++M: Luis Chamberlain <mcgrof@kernel.org> ++M: Kees Cook <keescook@chromium.org> ++M: Iurii Zaikin <yzaikin@google.com> ++L: linux-kernel@vger.kernel.org ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++F: fs/proc/proc_sysctl.c ++F: include/linux/sysctl.h ++F: kernel/sysctl-test.c ++F: kernel/sysctl.c ++F: tools/testing/selftests/sysctl/ ++ ++PS3 NETWORK SUPPORT ++M: Geoff Levand <geoff@infradead.org> ++L: netdev@vger.kernel.org ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/net/ethernet/toshiba/ps3_gelic_net.* ++ ++PS3 PLATFORM SUPPORT ++M: Geoff Levand <geoff@infradead.org> ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: arch/powerpc/boot/ps3* ++F: arch/powerpc/include/asm/lv1call.h ++F: arch/powerpc/include/asm/ps3*.h ++F: arch/powerpc/platforms/ps3/ ++F: drivers/*/ps3* ++F: drivers/ps3/ ++F: drivers/rtc/rtc-ps3.c ++F: drivers/usb/host/*ps3.c ++F: sound/ppc/snd_ps3* ++ ++PS3VRAM DRIVER ++M: Jim Paris <jim@jtan.com> ++M: Geoff Levand <geoff@infradead.org> ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: drivers/block/ps3vram.c ++ ++PSAMPLE PACKET SAMPLING SUPPORT ++M: Yotam Gigi <yotam.gi@gmail.com> ++S: Maintained ++F: include/net/psample.h ++F: include/uapi/linux/psample.h ++F: net/psample ++ ++PSTORE FILESYSTEM ++M: Kees Cook <keescook@chromium.org> ++M: Anton Vorontsov <anton@enomsg.org> ++M: Colin Cross <ccross@android.com> ++M: Tony Luck <tony.luck@intel.com> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/pstore ++F: Documentation/admin-guide/ramoops.rst ++F: Documentation/admin-guide/pstore-blk.rst ++F: Documentation/devicetree/bindings/reserved-memory/ramoops.txt ++F: drivers/acpi/apei/erst.c ++F: drivers/firmware/efi/efi-pstore.c ++F: fs/pstore/ ++F: include/linux/pstore* ++K: \b(pstore|ramoops) ++ ++PTP HARDWARE CLOCK SUPPORT ++M: Richard Cochran <richardcochran@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://linuxptp.sourceforge.net/ ++F: Documentation/ABI/testing/sysfs-ptp ++F: Documentation/driver-api/ptp.rst ++F: drivers/net/phy/dp83640* ++F: drivers/ptp/* ++F: include/linux/ptp_cl* ++ ++PTP VIRTUAL CLOCK SUPPORT ++M: Yangbo Lu <yangbo.lu@nxp.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/ptp/ptp_vclock.c ++F: net/ethtool/phc_vclocks.c ++ ++PTRACE SUPPORT ++M: Oleg Nesterov <oleg@redhat.com> ++S: Maintained ++F: arch/*/*/ptrace*.c ++F: arch/*/include/asm/ptrace*.h ++F: arch/*/ptrace*.c ++F: include/asm-generic/syscall.h ++F: include/linux/ptrace.h ++F: include/linux/regset.h ++F: include/linux/tracehook.h ++F: include/uapi/linux/ptrace.h ++F: include/uapi/linux/ptrace.h ++F: kernel/ptrace.c ++ ++PULSE8-CEC DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/admin-guide/media/pulse8-cec.rst ++F: drivers/media/cec/usb/pulse8/ ++ ++PVRUSB2 VIDEO4LINUX DRIVER ++M: Mike Isely <isely@pobox.com> ++L: pvrusb2@isely.net (subscribers-only) ++L: linux-media@vger.kernel.org ++S: Maintained ++W: http://www.isely.net/pvrusb2/ ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/driver-api/media/drivers/pvrusb2* ++F: drivers/media/usb/pvrusb2/ ++ ++PWC WEBCAM DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/pwc/* ++F: include/trace/events/pwc.h ++ ++PWM FAN DRIVER ++M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> ++L: linux-hwmon@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/hwmon/pwm-fan.txt ++F: Documentation/hwmon/pwm-fan.rst ++F: drivers/hwmon/pwm-fan.c ++ ++PWM IR Transmitter ++M: Sean Young <sean@mess.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/rc/pwm-ir-tx.c ++ ++PWM SUBSYSTEM ++M: Thierry Reding <thierry.reding@gmail.com> ++R: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> ++M: Lee Jones <lee.jones@linaro.org> ++L: linux-pwm@vger.kernel.org ++S: Maintained ++Q: https://patchwork.ozlabs.org/project/linux-pwm/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm.git ++F: Documentation/devicetree/bindings/gpio/gpio-mvebu.txt ++F: Documentation/devicetree/bindings/pwm/ ++F: Documentation/driver-api/pwm.rst ++F: drivers/gpio/gpio-mvebu.c ++F: drivers/pwm/ ++F: drivers/video/backlight/pwm_bl.c ++F: include/linux/pwm.h ++F: include/linux/pwm_backlight.h ++K: pwm_(config|apply_state|ops) ++ ++PXA GPIO DRIVER ++M: Robert Jarzmik <robert.jarzmik@free.fr> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-pxa.c ++ ++PXA MMCI DRIVER ++S: Orphan ++ ++PXA RTC DRIVER ++M: Robert Jarzmik <robert.jarzmik@free.fr> ++L: linux-rtc@vger.kernel.org ++S: Maintained ++ ++PXA2xx/PXA3xx SUPPORT ++M: Daniel Mack <daniel@zonque.org> ++M: Haojian Zhuang <haojian.zhuang@gmail.com> ++M: Robert Jarzmik <robert.jarzmik@free.fr> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://github.com/hzhuang1/linux.git ++T: git git://github.com/rjarzmik/linux.git ++F: arch/arm/boot/dts/pxa* ++F: arch/arm/mach-pxa/ ++F: drivers/dma/pxa* ++F: drivers/pcmcia/pxa2xx* ++F: drivers/pinctrl/pxa/ ++F: drivers/spi/spi-pxa2xx* ++F: drivers/usb/gadget/udc/pxa2* ++F: include/sound/pxa2xx-lib.h ++F: sound/arm/pxa* ++F: sound/soc/pxa/ ++ ++QAT DRIVER ++M: Giovanni Cabiddu <giovanni.cabiddu@intel.com> ++L: qat-linux@intel.com ++S: Supported ++F: drivers/crypto/qat/ ++ ++QCOM AUDIO (ASoC) DRIVERS ++M: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> ++M: Banajit Goswami <bgoswami@codeaurora.org> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Supported ++F: sound/soc/codecs/lpass-va-macro.c ++F: sound/soc/codecs/lpass-wsa-macro.* ++F: sound/soc/codecs/msm8916-wcd-analog.c ++F: sound/soc/codecs/msm8916-wcd-digital.c ++F: sound/soc/codecs/wcd9335.* ++F: sound/soc/codecs/wcd934x.c ++F: sound/soc/codecs/wcd-clsh-v2.* ++F: sound/soc/codecs/wsa881x.c ++F: sound/soc/qcom/ ++ ++QCOM IPA DRIVER ++M: Alex Elder <elder@kernel.org> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ipa/ ++ ++QEMU MACHINE EMULATOR AND VIRTUALIZER SUPPORT ++M: Gabriel Somlo <somlo@cmu.edu> ++M: "Michael S. Tsirkin" <mst@redhat.com> ++L: qemu-devel@nongnu.org ++S: Maintained ++F: drivers/firmware/qemu_fw_cfg.c ++F: include/uapi/linux/qemu_fw_cfg.h ++ ++QIB DRIVER ++M: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> ++M: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++F: drivers/infiniband/hw/qib/ ++ ++QLOGIC QL41xxx FCOE DRIVER ++M: Saurav Kashyap <skashyap@marvell.com> ++M: Javed Hasan <jhasan@marvell.com> ++M: GR-QLogic-Storage-Upstream@marvell.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/qedf/ ++ ++QLOGIC QL41xxx ISCSI DRIVER ++M: Nilesh Javali <njavali@marvell.com> ++M: Manish Rangankar <mrangankar@marvell.com> ++M: GR-QLogic-Storage-Upstream@marvell.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/qedi/ ++ ++QLOGIC QL4xxx ETHERNET DRIVER ++M: Ariel Elior <aelior@marvell.com> ++M: GR-everest-linux-l2@marvell.com ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/qlogic/qed/ ++F: drivers/net/ethernet/qlogic/qede/ ++F: include/linux/qed/ ++ ++QLOGIC QL4xxx RDMA DRIVER ++M: Michal Kalderon <mkalderon@marvell.com> ++M: Ariel Elior <aelior@marvell.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++F: drivers/infiniband/hw/qedr/ ++F: include/uapi/rdma/qedr-abi.h ++ ++QLOGIC QLA1280 SCSI DRIVER ++M: Michael Reed <mdr@sgi.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: drivers/scsi/qla1280.[ch] ++ ++QLOGIC QLA2XXX FC-SCSI DRIVER ++M: Nilesh Javali <njavali@marvell.com> ++M: GR-QLogic-Storage-Upstream@marvell.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/qla2xxx/ ++ ++QLOGIC QLA3XXX NETWORK DRIVER ++M: GR-Linux-NIC-Dev@marvell.com ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/qlogic/qla3xxx.* ++ ++QLOGIC QLA4XXX iSCSI DRIVER ++M: Nilesh Javali <njavali@marvell.com> ++M: Manish Rangankar <mrangankar@marvell.com> ++M: GR-QLogic-Storage-Upstream@marvell.com ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/qla4xxx/ ++ ++QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER ++M: Shahed Shaikh <shshaikh@marvell.com> ++M: Manish Chopra <manishc@marvell.com> ++M: GR-Linux-NIC-Dev@marvell.com ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/qlogic/qlcnic/ ++ ++QLOGIC QLGE 10Gb ETHERNET DRIVER ++M: Manish Chopra <manishc@marvell.com> ++M: GR-Linux-NIC-Dev@marvell.com ++M: Coiby Xu <coiby.xu@gmail.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: Documentation/networking/device_drivers/qlogic/qlge.rst ++F: drivers/staging/qlge/ ++ ++QM1D1B0004 MEDIA DRIVER ++M: Akihiro Tsukada <tskd08@gmail.com> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++F: drivers/media/tuners/qm1d1b0004* ++ ++QM1D1C0042 MEDIA DRIVER ++M: Akihiro Tsukada <tskd08@gmail.com> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++F: drivers/media/tuners/qm1d1c0042* ++ ++QNX4 FILESYSTEM ++M: Anders Larsen <al@alarsen.net> ++S: Maintained ++W: http://www.alarsen.net/linux/qnx4fs/ ++F: fs/qnx4/ ++F: include/uapi/linux/qnx4_fs.h ++F: include/uapi/linux/qnxtypes.h ++ ++QORIQ DPAA2 FSL-MC BUS DRIVER ++M: Stuart Yoder <stuyoder@gmail.com> ++M: Laurentiu Tudor <laurentiu.tudor@nxp.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/stable/sysfs-bus-fsl-mc ++F: Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt ++F: Documentation/networking/device_drivers/ethernet/freescale/dpaa2/overview.rst ++F: drivers/bus/fsl-mc/ ++F: include/uapi/linux/fsl_mc.h ++ ++QT1010 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/tuners/qt1010* ++ ++QUALCOMM ATHEROS ATH10K WIRELESS DRIVER ++M: Kalle Valo <kvalo@codeaurora.org> ++L: ath10k@lists.infradead.org ++S: Supported ++W: https://wireless.wiki.kernel.org/en/users/Drivers/ath10k ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git ++F: drivers/net/wireless/ath/ath10k/ ++ ++QUALCOMM ATHEROS ATH11K WIRELESS DRIVER ++M: Kalle Valo <kvalo@codeaurora.org> ++L: ath11k@lists.infradead.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git ++F: drivers/net/wireless/ath/ath11k/ ++ ++QUALCOMM ATHEROS ATH9K WIRELESS DRIVER ++M: ath9k-devel@qca.qualcomm.com ++L: linux-wireless@vger.kernel.org ++S: Supported ++W: https://wireless.wiki.kernel.org/en/users/Drivers/ath9k ++F: drivers/net/wireless/ath/ath9k/ ++ ++QUALCOMM CAMERA SUBSYSTEM DRIVER ++M: Robert Foss <robert.foss@linaro.org> ++M: Todor Tomov <todor.too@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/admin-guide/media/qcom_camss.rst ++F: Documentation/devicetree/bindings/media/*camss* ++F: drivers/media/platform/qcom/camss/ ++ ++QUALCOMM CORE POWER REDUCTION (CPR) AVS DRIVER ++M: Niklas Cassel <nks@flawful.org> ++L: linux-pm@vger.kernel.org ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/power/avs/qcom,cpr.txt ++F: drivers/soc/qcom/cpr.c ++ ++QUALCOMM CPUFREQ DRIVER MSM8996/APQ8096 ++M: Ilia Lin <ilia.lin@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt ++F: drivers/cpufreq/qcom-cpufreq-nvmem.c ++ ++QUALCOMM CRYPTO DRIVERS ++M: Thara Gopinath <thara.gopinath@linaro.org> ++L: linux-crypto@vger.kernel.org ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: drivers/crypto/qce/ ++ ++QUALCOMM EMAC GIGABIT ETHERNET DRIVER ++M: Timur Tabi <timur@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/qualcomm/emac/ ++ ++QUALCOMM ETHQOS ETHERNET DRIVER ++M: Vinod Koul <vkoul@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/qcom,ethqos.txt ++F: drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c ++ ++QUALCOMM GENERIC INTERFACE I2C DRIVER ++M: Akash Asthana <akashast@codeaurora.org> ++M: Mukesh Savaliya <msavaliy@codeaurora.org> ++L: linux-i2c@vger.kernel.org ++L: linux-arm-msm@vger.kernel.org ++S: Supported ++F: drivers/i2c/busses/i2c-qcom-geni.c ++ ++QUALCOMM HEXAGON ARCHITECTURE ++M: Brian Cain <bcain@codeaurora.org> ++L: linux-hexagon@vger.kernel.org ++S: Supported ++F: arch/hexagon/ ++ ++QUALCOMM HIDMA DRIVER ++M: Sinan Kaya <okaya@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++L: linux-arm-msm@vger.kernel.org ++L: dmaengine@vger.kernel.org ++S: Supported ++F: drivers/dma/qcom/hidma* ++ ++QUALCOMM I2C CCI DRIVER ++M: Loic Poulain <loic.poulain@linaro.org> ++M: Robert Foss <robert.foss@linaro.org> ++L: linux-i2c@vger.kernel.org ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-qcom-cci.txt ++F: drivers/i2c/busses/i2c-qcom-cci.c ++ ++QUALCOMM IOMMU ++M: Rob Clark <robdclark@gmail.com> ++L: iommu@lists.linux-foundation.org ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: drivers/iommu/arm/arm-smmu/qcom_iommu.c ++ ++QUALCOMM IPC ROUTER (QRTR) DRIVER ++M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: include/trace/events/qrtr.h ++F: include/uapi/linux/qrtr.h ++F: net/qrtr/ ++ ++QUALCOMM IPCC MAILBOX DRIVER ++M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ++L: linux-arm-msm@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml ++F: drivers/mailbox/qcom-ipcc.c ++F: include/dt-bindings/mailbox/qcom-ipcc.h ++ ++QUALCOMM IPQ4019 USB PHY DRIVER ++M: Robert Marko <robert.marko@sartura.hr> ++M: Luka Perkov <luka.perkov@sartura.hr> ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/phy/qcom-usb-ipq4019-phy.yaml ++F: drivers/phy/qualcomm/phy-qcom-ipq4019-usb.c ++ ++QUALCOMM IPQ4019 VQMMC REGULATOR DRIVER ++M: Robert Marko <robert.marko@sartura.hr> ++M: Luka Perkov <luka.perkov@sartura.hr> ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/regulator/vqmmc-ipq4019-regulator.yaml ++F: drivers/regulator/vqmmc-ipq4019-regulator.c ++ ++QUALCOMM RMNET DRIVER ++M: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> ++M: Sean Tranchetti <stranche@codeaurora.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/networking/device_drivers/cellular/qualcomm/rmnet.rst ++F: drivers/net/ethernet/qualcomm/rmnet/ ++F: include/linux/if_rmnet.h ++ ++QUALCOMM TSENS THERMAL DRIVER ++M: Amit Kucheria <amitk@kernel.org> ++M: Thara Gopinath <thara.gopinath@linaro.org> ++L: linux-pm@vger.kernel.org ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/thermal/qcom-tsens.yaml ++F: drivers/thermal/qcom/ ++ ++QUALCOMM VENUS VIDEO ACCELERATOR DRIVER ++M: Stanimir Varbanov <stanimir.varbanov@linaro.org> ++L: linux-media@vger.kernel.org ++L: linux-arm-msm@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/*venus* ++F: drivers/media/platform/qcom/venus/ ++ ++QUALCOMM WCN36XX WIRELESS DRIVER ++M: Kalle Valo <kvalo@codeaurora.org> ++L: wcn36xx@lists.infradead.org ++S: Supported ++W: https://wireless.wiki.kernel.org/en/users/Drivers/wcn36xx ++T: git git://github.com/KrasnikovEugene/wcn36xx.git ++F: drivers/net/wireless/ath/wcn36xx/ ++ ++QUANTENNA QTNFMAC WIRELESS DRIVER ++M: Igor Mitsyanko <imitsyanko@quantenna.com> ++R: Sergey Matyukevich <geomatsi@gmail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/net/wireless/quantenna ++ ++RADEON and AMDGPU DRM DRIVERS ++M: Alex Deucher <alexander.deucher@amd.com> ++M: Christian König <christian.koenig@amd.com> ++M: Pan, Xinhui <Xinhui.Pan@amd.com> ++L: amd-gfx@lists.freedesktop.org ++S: Supported ++T: git https://gitlab.freedesktop.org/agd5f/linux.git ++B: https://gitlab.freedesktop.org/drm/amd/-/issues ++C: irc://irc.oftc.net/radeon ++F: drivers/gpu/drm/amd/ ++F: drivers/gpu/drm/radeon/ ++F: include/uapi/drm/amdgpu_drm.h ++F: include/uapi/drm/radeon_drm.h ++ ++RADEON FRAMEBUFFER DISPLAY DRIVER ++M: Benjamin Herrenschmidt <benh@kernel.crashing.org> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/aty/radeon* ++F: include/uapi/linux/radeonfb.h ++ ++RADIOSHARK RADIO DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-shark.c ++ ++RADIOSHARK2 RADIO DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-shark2.c ++F: drivers/media/radio/radio-tea5777.c ++ ++RADOS BLOCK DEVICE (RBD) ++M: Ilya Dryomov <idryomov@gmail.com> ++R: Dongsheng Yang <dongsheng.yang@easystack.cn> ++L: ceph-devel@vger.kernel.org ++S: Supported ++W: http://ceph.com/ ++T: git git://github.com/ceph/ceph-client.git ++F: Documentation/ABI/testing/sysfs-bus-rbd ++F: drivers/block/rbd.c ++F: drivers/block/rbd_types.h ++ ++RAGE128 FRAMEBUFFER DISPLAY DRIVER ++M: Paul Mackerras <paulus@samba.org> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/aty/aty128fb.c ++ ++RAINSHADOW-CEC DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/cec/usb/rainshadow/ ++ ++RALINK MIPS ARCHITECTURE ++M: John Crispin <john@phrozen.org> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: arch/mips/ralink ++ ++RALINK RT2X00 WIRELESS LAN DRIVER ++M: Stanislaw Gruszka <stf_xl@wp.pl> ++M: Helmut Schaa <helmut.schaa@googlemail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/net/wireless/ralink/rt2x00/ ++ ++RAMDISK RAM BLOCK DEVICE DRIVER ++M: Jens Axboe <axboe@kernel.dk> ++S: Maintained ++F: Documentation/admin-guide/blockdev/ramdisk.rst ++F: drivers/block/brd.c ++ ++RANCHU VIRTUAL BOARD FOR MIPS ++M: Miodrag Dinic <miodrag.dinic@mips.com> ++L: linux-mips@vger.kernel.org ++S: Supported ++F: arch/mips/configs/generic/board-ranchu.config ++F: arch/mips/generic/board-ranchu.c ++ ++RANDOM NUMBER DRIVER ++M: "Theodore Ts'o" <tytso@mit.edu> ++S: Maintained ++F: drivers/char/random.c ++ ++RAPIDIO SUBSYSTEM ++M: Matt Porter <mporter@kernel.crashing.org> ++M: Alexandre Bounine <alex.bou9@gmail.com> ++S: Maintained ++F: drivers/rapidio/ ++ ++RAS INFRASTRUCTURE ++M: Tony Luck <tony.luck@intel.com> ++M: Borislav Petkov <bp@alien8.de> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: Documentation/admin-guide/ras.rst ++F: drivers/ras/ ++F: include/linux/ras.h ++F: include/ras/ras_event.h ++ ++RAYLINK/WEBGEAR 802.11 WIRELESS LAN DRIVER ++L: linux-wireless@vger.kernel.org ++S: Orphan ++F: drivers/net/wireless/ray* ++ ++RC-CORE / LIRC FRAMEWORK ++M: Sean Young <sean@mess.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: http://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/driver-api/media/rc-core.rst ++F: Documentation/userspace-api/media/rc/ ++F: drivers/media/rc/ ++F: include/media/rc-map.h ++F: include/media/rc-core.h ++F: include/uapi/linux/lirc.h ++ ++RCMM REMOTE CONTROLS DECODER ++M: Patrick Lerda <patrick9876@free.fr> ++S: Maintained ++F: drivers/media/rc/ir-rcmm-decoder.c ++ ++RCUTORTURE TEST FRAMEWORK ++M: "Paul E. McKenney" <paulmck@kernel.org> ++M: Josh Triplett <josh@joshtriplett.org> ++R: Steven Rostedt <rostedt@goodmis.org> ++R: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> ++R: Lai Jiangshan <jiangshanlai@gmail.com> ++L: rcu@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev ++F: tools/testing/selftests/rcutorture ++ ++RDACM20 Camera Sensor ++M: Jacopo Mondi <jacopo+renesas@jmondi.org> ++M: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> ++M: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> ++M: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/i2c/imi,rdacm2x-gmsl.yaml ++F: drivers/media/i2c/max9271.c ++F: drivers/media/i2c/max9271.h ++F: drivers/media/i2c/rdacm20.c ++ ++RDACM21 Camera Sensor ++M: Jacopo Mondi <jacopo+renesas@jmondi.org> ++M: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> ++M: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> ++M: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/i2c/imi,rdacm2x-gmsl.yaml ++F: drivers/media/i2c/max9271.c ++F: drivers/media/i2c/max9271.h ++F: drivers/media/i2c/rdacm21.c ++ ++RDC R-321X SoC ++M: Florian Fainelli <florian@openwrt.org> ++S: Maintained ++ ++RDC R6040 FAST ETHERNET DRIVER ++M: Florian Fainelli <f.fainelli@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/rdc/r6040.c ++ ++RDMAVT - RDMA verbs software ++M: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> ++M: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++F: drivers/infiniband/sw/rdmavt ++ ++RDS - RELIABLE DATAGRAM SOCKETS ++M: Santosh Shilimkar <santosh.shilimkar@oracle.com> ++L: netdev@vger.kernel.org ++L: linux-rdma@vger.kernel.org ++L: rds-devel@oss.oracle.com (moderated for non-subscribers) ++S: Supported ++W: https://oss.oracle.com/projects/rds/ ++F: Documentation/networking/rds.rst ++F: net/rds/ ++ ++RDT - RESOURCE ALLOCATION ++M: Fenghua Yu <fenghua.yu@intel.com> ++M: Reinette Chatre <reinette.chatre@intel.com> ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: Documentation/x86/resctrl* ++F: arch/x86/include/asm/resctrl.h ++F: arch/x86/kernel/cpu/resctrl/ ++F: tools/testing/selftests/resctrl/ ++ ++READ-COPY UPDATE (RCU) ++M: "Paul E. McKenney" <paulmck@kernel.org> ++M: Josh Triplett <josh@joshtriplett.org> ++R: Steven Rostedt <rostedt@goodmis.org> ++R: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> ++R: Lai Jiangshan <jiangshanlai@gmail.com> ++R: Joel Fernandes <joel@joelfernandes.org> ++L: rcu@vger.kernel.org ++S: Supported ++W: http://www.rdrop.com/users/paulmck/RCU/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev ++F: Documentation/RCU/ ++F: include/linux/rcu* ++F: kernel/rcu/ ++X: Documentation/RCU/torture.rst ++X: include/linux/srcu*.h ++X: kernel/rcu/srcu*.c ++ ++REAL TIME CLOCK (RTC) SUBSYSTEM ++M: Alessandro Zummo <a.zummo@towertech.it> ++M: Alexandre Belloni <alexandre.belloni@bootlin.com> ++L: linux-rtc@vger.kernel.org ++S: Maintained ++Q: http://patchwork.ozlabs.org/project/rtc-linux/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git ++F: Documentation/admin-guide/rtc.rst ++F: Documentation/devicetree/bindings/rtc/ ++F: drivers/rtc/ ++F: include/linux/platform_data/rtc-* ++F: include/linux/rtc.h ++F: include/linux/rtc/ ++F: include/uapi/linux/rtc.h ++F: tools/testing/selftests/rtc/ ++ ++REALTEK AUDIO CODECS ++M: Oder Chiou <oder_chiou@realtek.com> ++S: Maintained ++F: include/sound/rt*.h ++F: sound/soc/codecs/rt* ++ ++REALTEK RTL83xx SMI DSA ROUTER CHIPS ++M: Linus Walleij <linus.walleij@linaro.org> ++S: Maintained ++F: Documentation/devicetree/bindings/net/dsa/realtek-smi.txt ++F: drivers/net/dsa/realtek-smi* ++F: drivers/net/dsa/rtl83* ++ ++REALTEK WIRELESS DRIVER (rtlwifi family) ++M: Ping-Ke Shih <pkshih@realtek.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++W: https://wireless.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git ++F: drivers/net/wireless/realtek/rtlwifi/ ++ ++REALTEK WIRELESS DRIVER (rtw88) ++M: Yan-Hsuan Chuang <tony0620emma@gmail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/net/wireless/realtek/rtw88/ ++ ++REDPINE WIRELESS DRIVER ++M: Amitkumar Karwar <amitkarwar@gmail.com> ++M: Siva Rebbagondla <siva8118@gmail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/net/wireless/rsi/ ++ ++REGISTER MAP ABSTRACTION ++M: Mark Brown <broonie@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git ++F: Documentation/devicetree/bindings/regmap/ ++F: drivers/base/regmap/ ++F: include/linux/regmap.h ++ ++REISERFS FILE SYSTEM ++L: reiserfs-devel@vger.kernel.org ++S: Supported ++F: fs/reiserfs/ ++ ++REMOTE PROCESSOR (REMOTEPROC) SUBSYSTEM ++M: Ohad Ben-Cohen <ohad@wizery.com> ++M: Bjorn Andersson <bjorn.andersson@linaro.org> ++M: Mathieu Poirier <mathieu.poirier@linaro.org> ++L: linux-remoteproc@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc.git rproc-next ++F: Documentation/ABI/testing/sysfs-class-remoteproc ++F: Documentation/devicetree/bindings/remoteproc/ ++F: Documentation/staging/remoteproc.rst ++F: drivers/remoteproc/ ++F: include/linux/remoteproc.h ++F: include/linux/remoteproc/ ++ ++REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM ++M: Ohad Ben-Cohen <ohad@wizery.com> ++M: Bjorn Andersson <bjorn.andersson@linaro.org> ++M: Mathieu Poirier <mathieu.poirier@linaro.org> ++L: linux-remoteproc@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc.git rpmsg-next ++F: Documentation/ABI/testing/sysfs-bus-rpmsg ++F: Documentation/staging/rpmsg.rst ++F: drivers/rpmsg/ ++F: include/linux/rpmsg.h ++F: include/linux/rpmsg/ ++F: include/uapi/linux/rpmsg.h ++F: samples/rpmsg/ ++ ++REMOTE PROCESSOR MESSAGING (RPMSG) WWAN CONTROL DRIVER ++M: Stephan Gerhold <stephan@gerhold.net> ++L: netdev@vger.kernel.org ++L: linux-remoteproc@vger.kernel.org ++S: Maintained ++F: drivers/net/wwan/rpmsg_wwan_ctrl.c ++ ++RENESAS CLOCK DRIVERS ++M: Geert Uytterhoeven <geert+renesas@glider.be> ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git renesas-clk ++F: Documentation/devicetree/bindings/clock/renesas,* ++F: drivers/clk/renesas/ ++ ++RENESAS EMEV2 I2C DRIVER ++M: Wolfram Sang <wsa+renesas@sang-engineering.com> ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/i2c/renesas,iic-emev2.yaml ++F: drivers/i2c/busses/i2c-emev2.c ++ ++RENESAS ETHERNET DRIVERS ++R: Sergey Shtylyov <s.shtylyov@omp.ru> ++L: netdev@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++F: Documentation/devicetree/bindings/net/renesas,*.yaml ++F: drivers/net/ethernet/renesas/ ++F: include/linux/sh_eth.h ++ ++RENESAS R-CAR GYROADC DRIVER ++M: Marek Vasut <marek.vasut@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/iio/adc/renesas,rcar-gyroadc.yaml ++F: drivers/iio/adc/rcar-gyroadc.c ++ ++RENESAS R-CAR I2C DRIVERS ++M: Wolfram Sang <wsa+renesas@sang-engineering.com> ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml ++F: Documentation/devicetree/bindings/i2c/renesas,rmobile-iic.yaml ++F: drivers/i2c/busses/i2c-rcar.c ++F: drivers/i2c/busses/i2c-sh_mobile.c ++ ++RENESAS R-CAR THERMAL DRIVERS ++M: Niklas Söderlund <niklas.soderlund@ragnatech.se> ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml ++F: Documentation/devicetree/bindings/thermal/rcar-thermal.yaml ++F: drivers/thermal/rcar_gen3_thermal.c ++F: drivers/thermal/rcar_thermal.c ++ ++RENESAS RIIC DRIVER ++M: Chris Brandt <chris.brandt@renesas.com> ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/i2c/renesas,riic.yaml ++F: drivers/i2c/busses/i2c-riic.c ++ ++RENESAS USB PHY DRIVER ++M: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> ++L: linux-renesas-soc@vger.kernel.org ++S: Maintained ++F: drivers/phy/renesas/phy-rcar-gen3-usb*.c ++ ++RENESAS RZ/G2L A/D DRIVER ++M: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> ++L: linux-iio@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml ++F: drivers/iio/adc/rzg2l_adc.c ++ ++RESET CONTROLLER FRAMEWORK ++M: Philipp Zabel <p.zabel@pengutronix.de> ++S: Maintained ++T: git git://git.pengutronix.de/git/pza/linux ++F: Documentation/devicetree/bindings/reset/ ++F: Documentation/driver-api/reset.rst ++F: drivers/reset/ ++F: include/dt-bindings/reset/ ++F: include/linux/reset-controller.h ++F: include/linux/reset.h ++F: include/linux/reset/ ++K: \b(?:devm_|of_)?reset_control(?:ler_[a-z]+|_[a-z_]+)?\b ++ ++RESTARTABLE SEQUENCES SUPPORT ++M: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> ++M: Peter Zijlstra <peterz@infradead.org> ++M: "Paul E. McKenney" <paulmck@kernel.org> ++M: Boqun Feng <boqun.feng@gmail.com> ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: include/trace/events/rseq.h ++F: include/uapi/linux/rseq.h ++F: kernel/rseq.c ++F: tools/testing/selftests/rseq/ ++ ++RFKILL ++M: Johannes Berg <johannes@sipsolutions.net> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++W: https://wireless.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git ++F: Documentation/ABI/stable/sysfs-class-rfkill ++F: Documentation/driver-api/rfkill.rst ++F: include/linux/rfkill.h ++F: include/uapi/linux/rfkill.h ++F: net/rfkill/ ++ ++RHASHTABLE ++M: Thomas Graf <tgraf@suug.ch> ++M: Herbert Xu <herbert@gondor.apana.org.au> ++L: netdev@vger.kernel.org ++S: Maintained ++F: include/linux/rhashtable-types.h ++F: include/linux/rhashtable.h ++F: lib/rhashtable.c ++F: lib/test_rhashtable.c ++ ++RICOH R5C592 MEMORYSTICK DRIVER ++M: Maxim Levitsky <maximlevitsky@gmail.com> ++S: Maintained ++F: drivers/memstick/host/r592.* ++ ++RICOH SMARTMEDIA/XD DRIVER ++M: Maxim Levitsky <maximlevitsky@gmail.com> ++S: Maintained ++F: drivers/mtd/nand/raw/r852.c ++F: drivers/mtd/nand/raw/r852.h ++ ++RISC-V ARCHITECTURE ++M: Paul Walmsley <paul.walmsley@sifive.com> ++M: Palmer Dabbelt <palmer@dabbelt.com> ++M: Albert Ou <aou@eecs.berkeley.edu> ++L: linux-riscv@lists.infradead.org ++S: Supported ++P: Documentation/riscv/patch-acceptance.rst ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git ++F: arch/riscv/ ++N: riscv ++K: riscv ++ ++RISC-V/MICROCHIP POLARFIRE SOC SUPPORT ++M: Lewis Hanly <lewis.hanly@microchip.com> ++L: linux-riscv@lists.infradead.org ++S: Supported ++F: drivers/mailbox/mailbox-mpfs.c ++F: drivers/soc/microchip/ ++F: include/soc/microchip/mpfs.h ++ ++RNBD BLOCK DRIVERS ++M: Md. Haris Iqbal <haris.iqbal@ionos.com> ++M: Jack Wang <jinpu.wang@ionos.com> ++L: linux-block@vger.kernel.org ++S: Maintained ++F: drivers/block/rnbd/ ++ ++ROCCAT DRIVERS ++M: Stefan Achatz <erazor_de@users.sourceforge.net> ++S: Maintained ++W: http://sourceforge.net/projects/roccat/ ++F: Documentation/ABI/*/sysfs-driver-hid-roccat* ++F: drivers/hid/hid-roccat* ++F: include/linux/hid-roccat* ++ ++ROCKCHIP ISP V1 DRIVER ++M: Helen Koike <helen.koike@collabora.com> ++M: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> ++L: linux-media@vger.kernel.org ++L: linux-rockchip@lists.infradead.org ++S: Maintained ++F: Documentation/admin-guide/media/rkisp1.rst ++F: Documentation/devicetree/bindings/media/rockchip-isp1.yaml ++F: Documentation/userspace-api/media/v4l/pixfmt-meta-rkisp1.rst ++F: drivers/media/platform/rockchip/rkisp1 ++F: include/uapi/linux/rkisp1-config.h ++ ++ROCKCHIP RASTER 2D GRAPHIC ACCELERATION UNIT DRIVER ++M: Jacob Chen <jacob-chen@iotwrt.com> ++M: Ezequiel Garcia <ezequiel@collabora.com> ++L: linux-media@vger.kernel.org ++L: linux-rockchip@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/rockchip-rga.yaml ++F: drivers/media/platform/rockchip/rga/ ++ ++ROCKCHIP VIDEO DECODER DRIVER ++M: Ezequiel Garcia <ezequiel@collabora.com> ++L: linux-media@vger.kernel.org ++L: linux-rockchip@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/media/rockchip,vdec.yaml ++F: drivers/staging/media/rkvdec/ ++ ++ROCKER DRIVER ++M: Jiri Pirko <jiri@resnulli.us> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/rocker/ ++ ++ROCKETPORT EXPRESS/INFINITY DRIVER ++M: Kevin Cernekee <cernekee@gmail.com> ++L: linux-serial@vger.kernel.org ++S: Odd Fixes ++F: drivers/tty/serial/rp2.* ++ ++ROHM BD99954 CHARGER IC ++R: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> ++L: linux-power@fi.rohmeurope.com ++S: Supported ++F: drivers/power/supply/bd99954-charger.c ++F: drivers/power/supply/bd99954-charger.h ++ ++ROHM BH1750 AMBIENT LIGHT SENSOR DRIVER ++M: Tomasz Duszynski <tduszyns@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/iio/light/bh1750.yaml ++F: drivers/iio/light/bh1750.c ++ ++ROHM MULTIFUNCTION BD9571MWV-M PMIC DEVICE DRIVERS ++M: Marek Vasut <marek.vasut+renesas@gmail.com> ++L: linux-kernel@vger.kernel.org ++L: linux-renesas-soc@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/mfd/bd9571mwv.txt ++F: drivers/gpio/gpio-bd9571mwv.c ++F: drivers/mfd/bd9571mwv.c ++F: drivers/regulator/bd9571mwv-regulator.c ++F: include/linux/mfd/bd9571mwv.h ++ ++ROHM POWER MANAGEMENT IC DEVICE DRIVERS ++R: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> ++L: linux-power@fi.rohmeurope.com ++S: Supported ++F: Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt ++F: Documentation/devicetree/bindings/regulator/rohm,bd70528-regulator.txt ++F: drivers/clk/clk-bd718x7.c ++F: drivers/gpio/gpio-bd70528.c ++F: drivers/gpio/gpio-bd71815.c ++F: drivers/gpio/gpio-bd71828.c ++F: drivers/mfd/rohm-bd70528.c ++F: drivers/mfd/rohm-bd71828.c ++F: drivers/mfd/rohm-bd718x7.c ++F: drivers/mfd/rohm-bd9576.c ++F: drivers/power/supply/bd70528-charger.c ++F: drivers/regulator/bd70528-regulator.c ++F: drivers/regulator/bd71815-regulator.c ++F: drivers/regulator/bd71828-regulator.c ++F: drivers/regulator/bd718x7-regulator.c ++F: drivers/regulator/bd9576-regulator.c ++F: drivers/regulator/rohm-regulator.c ++F: drivers/rtc/rtc-bd70528.c ++F: drivers/watchdog/bd70528_wdt.c ++F: drivers/watchdog/bd9576_wdt.c ++F: include/linux/mfd/rohm-bd70528.h ++F: include/linux/mfd/rohm-bd71815.h ++F: include/linux/mfd/rohm-bd71828.h ++F: include/linux/mfd/rohm-bd718x7.h ++F: include/linux/mfd/rohm-bd957x.h ++F: include/linux/mfd/rohm-generic.h ++F: include/linux/mfd/rohm-shared.h ++ ++ROSE NETWORK LAYER ++M: Ralf Baechle <ralf@linux-mips.org> ++L: linux-hams@vger.kernel.org ++S: Maintained ++W: http://www.linux-ax25.org/ ++F: include/net/rose.h ++F: include/uapi/linux/rose.h ++F: net/rose/ ++ ++ROTATION DRIVER FOR ALLWINNER A83T ++M: Jernej Skrabec <jernej.skrabec@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-de2-rotate.yaml ++F: drivers/media/platform/sunxi/sun8i-rotate/ ++ ++RTL2830 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/rtl2830* ++ ++RTL2832 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/rtl2832* ++ ++RTL2832_SDR MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/rtl2832_sdr* ++ ++RTL8180 WIRELESS DRIVER ++L: linux-wireless@vger.kernel.org ++S: Orphan ++W: https://wireless.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git ++F: drivers/net/wireless/realtek/rtl818x/rtl8180/ ++ ++RTL8187 WIRELESS DRIVER ++M: Herton Ronaldo Krzesinski <herton@canonical.com> ++M: Hin-Tak Leung <htl10@users.sourceforge.net> ++M: Larry Finger <Larry.Finger@lwfinger.net> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++W: https://wireless.wiki.kernel.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git ++F: drivers/net/wireless/realtek/rtl818x/rtl8187/ ++ ++RTL8XXXU WIRELESS DRIVER (rtl8xxxu) ++M: Jes Sorensen <Jes.Sorensen@gmail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jes/linux.git rtl8xxxu-devel ++F: drivers/net/wireless/realtek/rtl8xxxu/ ++ ++RTRS TRANSPORT DRIVERS ++M: Md. Haris Iqbal <haris.iqbal@ionos.com> ++M: Jack Wang <jinpu.wang@ionos.com> ++L: linux-rdma@vger.kernel.org ++S: Maintained ++F: drivers/infiniband/ulp/rtrs/ ++ ++RXRPC SOCKETS (AF_RXRPC) ++M: David Howells <dhowells@redhat.com> ++M: Marc Dionne <marc.dionne@auristor.com> ++L: linux-afs@lists.infradead.org ++S: Supported ++W: https://www.infradead.org/~dhowells/kafs/ ++F: Documentation/networking/rxrpc.rst ++F: include/keys/rxrpc-type.h ++F: include/net/af_rxrpc.h ++F: include/trace/events/rxrpc.h ++F: include/uapi/linux/rxrpc.h ++F: net/rxrpc/ ++ ++S3 SAVAGE FRAMEBUFFER DRIVER ++M: Antonino Daplas <adaplas@gmail.com> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/savage/ ++ ++S390 ++M: Heiko Carstens <hca@linux.ibm.com> ++M: Vasily Gorbik <gor@linux.ibm.com> ++M: Christian Borntraeger <borntraeger@de.ibm.com> ++R: Alexander Gordeev <agordeev@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git ++F: Documentation/driver-api/s390-drivers.rst ++F: Documentation/s390/ ++F: arch/s390/ ++F: drivers/s390/ ++ ++S390 COMMON I/O LAYER ++M: Vineeth Vijayan <vneethv@linux.ibm.com> ++M: Peter Oberparleiter <oberpar@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: drivers/s390/cio/ ++ ++S390 DASD DRIVER ++M: Stefan Haberland <sth@linux.ibm.com> ++M: Jan Hoeppner <hoeppner@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: block/partitions/ibm.c ++F: drivers/s390/block/dasd* ++F: include/linux/dasd_mod.h ++ ++S390 IOMMU (PCI) ++M: Matthew Rosato <mjrosato@linux.ibm.com> ++M: Gerald Schaefer <gerald.schaefer@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: drivers/iommu/s390-iommu.c ++ ++S390 IUCV NETWORK LAYER ++M: Julian Wiedmann <jwi@linux.ibm.com> ++M: Karsten Graul <kgraul@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: drivers/s390/net/*iucv* ++F: include/net/iucv/ ++F: net/iucv/ ++ ++S390 NETWORK DRIVERS ++M: Julian Wiedmann <jwi@linux.ibm.com> ++M: Karsten Graul <kgraul@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: drivers/s390/net/ ++ ++S390 PCI SUBSYSTEM ++M: Niklas Schnelle <schnelle@linux.ibm.com> ++M: Gerald Schaefer <gerald.schaefer@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: arch/s390/pci/ ++F: drivers/pci/hotplug/s390_pci_hpc.c ++F: Documentation/s390/pci.rst ++ ++S390 VFIO AP DRIVER ++M: Tony Krowiak <akrowiak@linux.ibm.com> ++M: Halil Pasic <pasic@linux.ibm.com> ++M: Jason Herne <jjherne@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: Documentation/s390/vfio-ap.rst ++F: drivers/s390/crypto/vfio_ap_drv.c ++F: drivers/s390/crypto/vfio_ap_ops.c ++F: drivers/s390/crypto/vfio_ap_private.h ++ ++S390 VFIO-CCW DRIVER ++M: Eric Farman <farman@linux.ibm.com> ++M: Matthew Rosato <mjrosato@linux.ibm.com> ++R: Halil Pasic <pasic@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++L: kvm@vger.kernel.org ++S: Supported ++F: Documentation/s390/vfio-ccw.rst ++F: drivers/s390/cio/vfio_ccw* ++F: include/uapi/linux/vfio_ccw.h ++ ++S390 VFIO-PCI DRIVER ++M: Matthew Rosato <mjrosato@linux.ibm.com> ++M: Eric Farman <farman@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++L: kvm@vger.kernel.org ++S: Supported ++F: drivers/vfio/pci/vfio_pci_zdev.c ++F: include/uapi/linux/vfio_zdev.h ++ ++S390 ZCRYPT DRIVER ++M: Harald Freudenberger <freude@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: drivers/s390/crypto/ ++ ++S390 ZFCP DRIVER ++M: Steffen Maier <maier@linux.ibm.com> ++M: Benjamin Block <bblock@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: drivers/s390/scsi/zfcp_* ++ ++S3C ADC BATTERY DRIVER ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++L: linux-samsung-soc@vger.kernel.org ++S: Odd Fixes ++F: drivers/power/supply/s3c_adc_battery.c ++F: include/linux/s3c_adc_battery.h ++ ++S3C24XX SD/MMC Driver ++M: Ben Dooks <ben-linux@fluff.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++F: drivers/mmc/host/s3cmci.* ++ ++SAA6588 RDS RECEIVER DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/saa6588* ++ ++SAA7134 VIDEO4LINUX DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Odd fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/driver-api/media/drivers/saa7134* ++F: drivers/media/pci/saa7134/ ++ ++SAA7146 VIDEO4LINUX-2 DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/common/saa7146/ ++F: drivers/media/pci/saa7146/ ++F: include/media/drv-intf/saa7146* ++ ++SAFESETID SECURITY MODULE ++M: Micah Morton <mortonm@chromium.org> ++S: Supported ++F: Documentation/admin-guide/LSM/SafeSetID.rst ++F: security/safesetid/ ++ ++SAMSUNG AUDIO (ASoC) DRIVERS ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++M: Sylwester Nawrocki <s.nawrocki@samsung.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Supported ++F: Documentation/devicetree/bindings/sound/samsung* ++F: sound/soc/samsung/ ++ ++SAMSUNG EXYNOS PSEUDO RANDOM NUMBER GENERATOR (RNG) DRIVER ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++L: linux-crypto@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml ++F: drivers/crypto/exynos-rng.c ++ ++SAMSUNG EXYNOS TRUE RANDOM NUMBER GENERATOR (TRNG) DRIVER ++M: Łukasz Stelmach <l.stelmach@samsung.com> ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/rng/samsung,exynos5250-trng.yaml ++F: drivers/char/hw_random/exynos-trng.c ++ ++SAMSUNG FRAMEBUFFER DRIVER ++M: Jingoo Han <jingoohan1@gmail.com> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/s3c-fb.c ++ ++SAMSUNG INTERCONNECT DRIVERS ++M: Sylwester Nawrocki <s.nawrocki@samsung.com> ++M: Artur Świgoń <a.swigon@samsung.com> ++L: linux-pm@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Supported ++F: drivers/interconnect/samsung/ ++ ++SAMSUNG LAPTOP DRIVER ++M: Corentin Chary <corentin.chary@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/samsung-laptop.c ++ ++SAMSUNG MULTIFUNCTION PMIC DEVICE DRIVERS ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> ++L: linux-kernel@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/clock/samsung,s2mps11.txt ++F: Documentation/devicetree/bindings/mfd/samsung,sec-core.txt ++F: Documentation/devicetree/bindings/regulator/samsung,s2m*.txt ++F: Documentation/devicetree/bindings/regulator/samsung,s5m*.txt ++F: drivers/clk/clk-s2mps11.c ++F: drivers/mfd/sec*.c ++F: drivers/regulator/s2m*.c ++F: drivers/regulator/s5m*.c ++F: drivers/rtc/rtc-s5m.c ++F: include/linux/mfd/samsung/ ++ ++SAMSUNG S3C24XX/S3C64XX SOC SERIES CAMIF DRIVER ++M: Sylwester Nawrocki <sylvester.nawrocki@gmail.com> ++L: linux-media@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++F: drivers/media/platform/s3c-camif/ ++F: include/media/drv-intf/s3c_camif.h ++ ++SAMSUNG S3FWRN5 NFC DRIVER ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++M: Krzysztof Opasiak <k.opasiak@samsung.com> ++L: linux-nfc@lists.01.org (subscribers-only) ++S: Maintained ++F: Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml ++F: drivers/nfc/s3fwrn5 ++ ++SAMSUNG S5C73M3 CAMERA DRIVER ++M: Andrzej Hajda <a.hajda@samsung.com> ++L: linux-media@vger.kernel.org ++S: Supported ++F: drivers/media/i2c/s5c73m3/* ++ ++SAMSUNG S5K5BAF CAMERA DRIVER ++M: Andrzej Hajda <a.hajda@samsung.com> ++L: linux-media@vger.kernel.org ++S: Supported ++F: drivers/media/i2c/s5k5baf.c ++ ++SAMSUNG S5P Security SubSystem (SSS) DRIVER ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++M: Vladimir Zapolskiy <vz@mleia.com> ++L: linux-crypto@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/crypto/samsung-slimsss.yaml ++F: Documentation/devicetree/bindings/crypto/samsung-sss.yaml ++F: drivers/crypto/s5p-sss.c ++ ++SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS ++M: Sylwester Nawrocki <s.nawrocki@samsung.com> ++L: linux-media@vger.kernel.org ++S: Supported ++Q: https://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/platform/exynos4-is/ ++ ++SAMSUNG SOC CLOCK DRIVERS ++M: Sylwester Nawrocki <s.nawrocki@samsung.com> ++M: Tomasz Figa <tomasz.figa@gmail.com> ++M: Chanwoo Choi <cw00.choi@samsung.com> ++L: linux-samsung-soc@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk.git ++F: Documentation/devicetree/bindings/clock/exynos*.txt ++F: Documentation/devicetree/bindings/clock/samsung,*.yaml ++F: Documentation/devicetree/bindings/clock/samsung,s3c* ++F: Documentation/devicetree/bindings/clock/samsung,s5p* ++F: drivers/clk/samsung/ ++F: include/dt-bindings/clock/exynos*.h ++F: include/dt-bindings/clock/s3c*.h ++F: include/dt-bindings/clock/s5p*.h ++F: include/dt-bindings/clock/samsung,*.h ++F: include/linux/clk/samsung.h ++F: include/linux/platform_data/clk-s3c2410.h ++ ++SAMSUNG SPI DRIVERS ++M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> ++M: Andi Shyti <andi@etezian.org> ++L: linux-spi@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/spi/spi-samsung.txt ++F: drivers/spi/spi-s3c* ++F: include/linux/platform_data/spi-s3c64xx.h ++F: include/linux/spi/s3c24xx-fiq.h ++ ++SAMSUNG SXGBE DRIVERS ++M: Byungho An <bh74.an@samsung.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/samsung/sxgbe/ ++ ++SAMSUNG THERMAL DRIVER ++M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> ++L: linux-pm@vger.kernel.org ++L: linux-samsung-soc@vger.kernel.org ++S: Supported ++T: git https://github.com/lmajewski/linux-samsung-thermal.git ++F: drivers/thermal/samsung/ ++ ++SAMSUNG USB2 PHY DRIVER ++M: Sylwester Nawrocki <s.nawrocki@samsung.com> ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/phy/samsung-phy.txt ++F: Documentation/driver-api/phy/samsung-usb2.rst ++F: drivers/phy/samsung/phy-exynos4210-usb2.c ++F: drivers/phy/samsung/phy-exynos4x12-usb2.c ++F: drivers/phy/samsung/phy-exynos5250-usb2.c ++F: drivers/phy/samsung/phy-s5pv210-usb2.c ++F: drivers/phy/samsung/phy-samsung-usb2.c ++F: drivers/phy/samsung/phy-samsung-usb2.h ++ ++SANCLOUD BEAGLEBONE ENHANCED DEVICE TREE ++M: Paul Barker <paul.barker@sancloud.com> ++R: Marc Murphy <marc.murphy@sancloud.com> ++S: Supported ++F: arch/arm/boot/dts/am335x-sancloud* ++ ++SC1200 WDT DRIVER ++M: Zwane Mwaikambo <zwanem@gmail.com> ++S: Maintained ++F: drivers/watchdog/sc1200wdt.c ++ ++SCHEDULER ++M: Ingo Molnar <mingo@redhat.com> ++M: Peter Zijlstra <peterz@infradead.org> ++M: Juri Lelli <juri.lelli@redhat.com> (SCHED_DEADLINE) ++M: Vincent Guittot <vincent.guittot@linaro.org> (SCHED_NORMAL) ++R: Dietmar Eggemann <dietmar.eggemann@arm.com> (SCHED_NORMAL) ++R: Steven Rostedt <rostedt@goodmis.org> (SCHED_FIFO/SCHED_RR) ++R: Ben Segall <bsegall@google.com> (CONFIG_CFS_BANDWIDTH) ++R: Mel Gorman <mgorman@suse.de> (CONFIG_NUMA_BALANCING) ++R: Daniel Bristot de Oliveira <bristot@redhat.com> (SCHED_DEADLINE) ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core ++F: include/linux/preempt.h ++F: include/linux/sched.h ++F: include/linux/wait.h ++F: include/uapi/linux/sched.h ++F: kernel/sched/ ++ ++SCR24X CHIP CARD INTERFACE DRIVER ++M: Lubomir Rintel <lkundrak@v3.sk> ++S: Supported ++F: drivers/char/pcmcia/scr24x_cs.c ++ ++SCSI RDMA PROTOCOL (SRP) INITIATOR ++M: Bart Van Assche <bvanassche@acm.org> ++L: linux-rdma@vger.kernel.org ++S: Supported ++Q: http://patchwork.kernel.org/project/linux-rdma/list/ ++F: drivers/infiniband/ulp/srp/ ++F: include/scsi/srp.h ++ ++SCSI RDMA PROTOCOL (SRP) TARGET ++M: Bart Van Assche <bvanassche@acm.org> ++L: linux-rdma@vger.kernel.org ++L: target-devel@vger.kernel.org ++S: Supported ++Q: http://patchwork.kernel.org/project/linux-rdma/list/ ++F: drivers/infiniband/ulp/srpt/ ++ ++SCSI SG DRIVER ++M: Doug Gilbert <dgilbert@interlog.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++W: http://sg.danny.cz/sg ++F: Documentation/scsi/scsi-generic.rst ++F: drivers/scsi/sg.c ++F: include/scsi/sg.h ++ ++SCSI SUBSYSTEM ++M: "James E.J. Bottomley" <jejb@linux.ibm.com> ++M: "Martin K. Petersen" <martin.petersen@oracle.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++Q: https://patchwork.kernel.org/project/linux-scsi/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git ++F: Documentation/devicetree/bindings/scsi/ ++F: drivers/scsi/ ++F: include/scsi/ ++ ++SCSI TAPE DRIVER ++M: Kai Mäkisara <Kai.Makisara@kolumbus.fi> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: Documentation/scsi/st.rst ++F: drivers/scsi/st.* ++F: drivers/scsi/st_*.h ++ ++SCSI TARGET CORE USER DRIVER ++M: Bodo Stroesser <bostroesser@gmail.com> ++L: linux-scsi@vger.kernel.org ++L: target-devel@vger.kernel.org ++S: Supported ++F: Documentation/target/tcmu-design.rst ++F: drivers/target/target_core_user.c ++F: include/uapi/linux/target_core_user.h ++ ++SCSI TARGET SUBSYSTEM ++M: "Martin K. Petersen" <martin.petersen@oracle.com> ++L: linux-scsi@vger.kernel.org ++L: target-devel@vger.kernel.org ++S: Supported ++W: http://www.linux-iscsi.org ++Q: https://patchwork.kernel.org/project/target-devel/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git ++F: Documentation/target/ ++F: drivers/target/ ++F: include/target/ ++ ++SCTP PROTOCOL ++M: Vlad Yasevich <vyasevich@gmail.com> ++M: Neil Horman <nhorman@tuxdriver.com> ++M: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> ++L: linux-sctp@vger.kernel.org ++S: Maintained ++W: http://lksctp.sourceforge.net ++F: Documentation/networking/sctp.rst ++F: include/linux/sctp.h ++F: include/net/sctp/ ++F: include/uapi/linux/sctp.h ++F: net/sctp/ ++ ++SCx200 CPU SUPPORT ++M: Jim Cromie <jim.cromie@gmail.com> ++S: Odd Fixes ++F: Documentation/i2c/busses/scx200_acb.rst ++F: arch/x86/platform/scx200/ ++F: drivers/i2c/busses/scx200* ++F: drivers/mtd/maps/scx200_docflash.c ++F: drivers/watchdog/scx200_wdt.c ++F: include/linux/scx200.h ++ ++SCx200 GPIO DRIVER ++M: Jim Cromie <jim.cromie@gmail.com> ++S: Maintained ++F: drivers/char/scx200_gpio.c ++F: include/linux/scx200_gpio.h ++ ++SCx200 HRT CLOCKSOURCE DRIVER ++M: Jim Cromie <jim.cromie@gmail.com> ++S: Maintained ++F: drivers/clocksource/scx200_hrt.c ++ ++SDRICOH_CS MMC/SD HOST CONTROLLER INTERFACE DRIVER ++M: Sascha Sommer <saschasommer@freenet.de> ++L: sdricohcs-devel@lists.sourceforge.net (subscribers-only) ++S: Maintained ++F: drivers/mmc/host/sdricoh_cs.c ++ ++SECO BOARDS CEC DRIVER ++M: Ettore Chimenti <ek5.chimenti@gmail.com> ++S: Maintained ++F: drivers/media/cec/platform/seco/seco-cec.c ++F: drivers/media/cec/platform/seco/seco-cec.h ++ ++SECURE COMPUTING ++M: Kees Cook <keescook@chromium.org> ++R: Andy Lutomirski <luto@amacapital.net> ++R: Will Drewry <wad@chromium.org> ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git seccomp ++F: Documentation/userspace-api/seccomp_filter.rst ++F: include/linux/seccomp.h ++F: include/uapi/linux/seccomp.h ++F: kernel/seccomp.c ++F: tools/testing/selftests/kselftest_harness.h ++F: tools/testing/selftests/seccomp/* ++K: \bsecure_computing ++K: \bTIF_SECCOMP\b ++ ++SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) Broadcom BRCMSTB DRIVER ++M: Al Cooper <alcooperx@gmail.com> ++L: linux-mmc@vger.kernel.org ++L: bcm-kernel-feedback-list@broadcom.com ++S: Maintained ++F: drivers/mmc/host/sdhci-brcmstb* ++ ++SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER ++M: Adrian Hunter <adrian.hunter@intel.com> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++F: drivers/mmc/host/sdhci* ++F: include/linux/mmc/sdhci* ++ ++SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) MICROCHIP DRIVER ++M: Eugen Hristev <eugen.hristev@microchip.com> ++L: linux-mmc@vger.kernel.org ++S: Supported ++F: drivers/mmc/host/sdhci-of-at91.c ++ ++SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) SAMSUNG DRIVER ++M: Ben Dooks <ben-linux@fluff.org> ++M: Jaehoon Chung <jh80.chung@samsung.com> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++F: drivers/mmc/host/sdhci-s3c* ++ ++SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) ST SPEAR DRIVER ++M: Viresh Kumar <vireshk@kernel.org> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++F: drivers/mmc/host/sdhci-spear.c ++ ++SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) TI OMAP DRIVER ++M: Kishon Vijay Abraham I <kishon@ti.com> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++F: drivers/mmc/host/sdhci-omap.c ++ ++SECURE ENCRYPTING DEVICE (SED) OPAL DRIVER ++M: Jonathan Derrick <jonathan.derrick@intel.com> ++M: Revanth Rajashekar <revanth.rajashekar@intel.com> ++L: linux-block@vger.kernel.org ++S: Supported ++F: block/opal_proto.h ++F: block/sed* ++F: include/linux/sed* ++F: include/uapi/linux/sed* ++ ++SECURITY CONTACT ++M: Security Officers <security@kernel.org> ++S: Supported ++F: Documentation/admin-guide/security-bugs.rst ++ ++SECURITY SUBSYSTEM ++M: James Morris <jmorris@namei.org> ++M: "Serge E. Hallyn" <serge@hallyn.com> ++L: linux-security-module@vger.kernel.org (suggested Cc:) ++S: Supported ++W: http://kernsec.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git ++F: security/ ++X: security/selinux/ ++ ++SELINUX SECURITY MODULE ++M: Paul Moore <paul@paul-moore.com> ++M: Stephen Smalley <stephen.smalley.work@gmail.com> ++M: Eric Paris <eparis@parisplace.org> ++L: selinux@vger.kernel.org ++S: Supported ++W: https://selinuxproject.org ++W: https://github.com/SELinuxProject ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git ++F: Documentation/ABI/obsolete/sysfs-selinux-checkreqprot ++F: Documentation/ABI/obsolete/sysfs-selinux-disable ++F: Documentation/admin-guide/LSM/SELinux.rst ++F: include/trace/events/avc.h ++F: include/uapi/linux/selinux_netlink.h ++F: scripts/selinux/ ++F: security/selinux/ ++ ++SENSABLE PHANTOM ++M: Jiri Slaby <jirislaby@kernel.org> ++S: Maintained ++F: drivers/misc/phantom.c ++F: include/uapi/linux/phantom.h ++ ++SENSIRION SCD30 CARBON DIOXIDE SENSOR DRIVER ++M: Tomasz Duszynski <tomasz.duszynski@octakon.com> ++S: Maintained ++F: Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml ++F: drivers/iio/chemical/scd30.h ++F: drivers/iio/chemical/scd30_core.c ++F: drivers/iio/chemical/scd30_i2c.c ++F: drivers/iio/chemical/scd30_serial.c ++ ++SENSIRION SGP40 GAS SENSOR DRIVER ++M: Andreas Klinger <ak@it-klinger.de> ++S: Maintained ++F: Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40 ++F: drivers/iio/chemical/sgp40.c ++ ++SENSIRION SPS30 AIR POLLUTION SENSOR DRIVER ++M: Tomasz Duszynski <tduszyns@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml ++F: drivers/iio/chemical/sps30.c ++F: drivers/iio/chemical/sps30_i2c.c ++F: drivers/iio/chemical/sps30_serial.c ++ ++SERIAL DEVICE BUS ++M: Rob Herring <robh@kernel.org> ++L: linux-serial@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/serial/serial.yaml ++F: drivers/tty/serdev/ ++F: include/linux/serdev.h ++ ++SERIAL DRIVERS ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++L: linux-serial@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/serial/ ++F: drivers/tty/serial/ ++ ++SERIAL IR RECEIVER ++M: Sean Young <sean@mess.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/rc/serial_ir.c ++ ++SERIAL LOW-POWER INTER-CHIP MEDIA BUS (SLIMbus) ++M: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/slimbus/ ++F: drivers/slimbus/ ++F: include/linux/slimbus.h ++ ++SFC NETWORK DRIVER ++M: Edward Cree <ecree.xilinx@gmail.com> ++M: Martin Habets <habetsm.xilinx@gmail.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/sfc/ ++ ++SFF/SFP/SFP+ MODULE SUPPORT ++M: Russell King <linux@armlinux.org.uk> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/phy/phylink.c ++F: drivers/net/phy/sfp* ++F: include/linux/mdio/mdio-i2c.h ++F: include/linux/phylink.h ++F: include/linux/sfp.h ++K: phylink\.h|struct\s+phylink|\.phylink|>phylink_|phylink_(autoneg|clear|connect|create|destroy|disconnect|ethtool|helper|mac|mii|of|set|start|stop|test|validate) ++ ++SGI GRU DRIVER ++M: Dimitri Sivanich <dimitri.sivanich@hpe.com> ++S: Maintained ++F: drivers/misc/sgi-gru/ ++ ++SGI XP/XPC/XPNET DRIVER ++M: Robin Holt <robinmholt@gmail.com> ++M: Steve Wahl <steve.wahl@hpe.com> ++R: Mike Travis <mike.travis@hpe.com> ++S: Maintained ++F: drivers/misc/sgi-xp/ ++ ++SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS ++M: Karsten Graul <kgraul@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++S: Supported ++W: http://www.ibm.com/developerworks/linux/linux390/ ++F: net/smc/ ++ ++SHARP GP2AP002A00F/GP2AP002S00F SENSOR DRIVER ++M: Linus Walleij <linus.walleij@linaro.org> ++L: linux-iio@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git ++F: Documentation/devicetree/bindings/iio/light/sharp,gp2ap002.yaml ++F: drivers/iio/light/gp2ap002.c ++ ++SHARP RJ54N1CB0C SENSOR DRIVER ++M: Jacopo Mondi <jacopo@jmondi.org> ++L: linux-media@vger.kernel.org ++S: Odd fixes ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/rj54n1cb0c.c ++F: include/media/i2c/rj54n1cb0c.h ++ ++SH_VOU V4L2 OUTPUT DRIVER ++L: linux-media@vger.kernel.org ++S: Orphan ++F: drivers/media/platform/sh_vou.c ++F: include/media/drv-intf/sh_vou.h ++ ++SI2157 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/tuners/si2157* ++ ++SI2165 MEDIA DRIVER ++M: Matthias Schwarzott <zzam@gentoo.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/dvb-frontends/si2165* ++ ++SI2168 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/si2168* ++ ++SI470X FM RADIO RECEIVER I2C DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/si470x/radio-si470x-i2c.c ++ ++SI470X FM RADIO RECEIVER USB DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/si470x/radio-si470x-common.c ++F: drivers/media/radio/si470x/radio-si470x-usb.c ++F: drivers/media/radio/si470x/radio-si470x.h ++ ++SI4713 FM RADIO TRANSMITTER I2C DRIVER ++M: Eduardo Valentin <edubezval@gmail.com> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/si4713/si4713.? ++ ++SI4713 FM RADIO TRANSMITTER PLATFORM DRIVER ++M: Eduardo Valentin <edubezval@gmail.com> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/si4713/radio-platform-si4713.c ++ ++SI4713 FM RADIO TRANSMITTER USB DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/si4713/radio-usb-si4713.c ++ ++SIANO DVB DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Odd fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/common/siano/ ++F: drivers/media/mmc/siano/ ++F: drivers/media/usb/siano/ ++F: drivers/media/usb/siano/ ++ ++SIFIVE DRIVERS ++M: Palmer Dabbelt <palmer@dabbelt.com> ++M: Paul Walmsley <paul.walmsley@sifive.com> ++L: linux-riscv@lists.infradead.org ++S: Supported ++T: git git://github.com/sifive/riscv-linux.git ++N: sifive ++K: [^@]sifive ++ ++SIFIVE FU540 SYSTEM-ON-CHIP ++M: Paul Walmsley <paul.walmsley@sifive.com> ++M: Palmer Dabbelt <palmer@dabbelt.com> ++L: linux-riscv@lists.infradead.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pjw/sifive.git ++N: fu540 ++K: fu540 ++ ++SIFIVE PDMA DRIVER ++M: Green Wan <green.wan@sifive.com> ++S: Maintained ++F: Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml ++F: drivers/dma/sf-pdma/ ++ ++SILEAD TOUCHSCREEN DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-input@vger.kernel.org ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/input/touchscreen/silead.c ++F: drivers/platform/x86/touchscreen_dmi.c ++ ++SILICON LABS WIRELESS DRIVERS (for WFxxx series) ++M: Jérôme Pouiller <jerome.pouiller@silabs.com> ++S: Supported ++F: drivers/staging/wfx/ ++ ++SILICON MOTION SM712 FRAME BUFFER DRIVER ++M: Sudip Mukherjee <sudipm.mukherjee@gmail.com> ++M: Teddy Wang <teddy.wang@siliconmotion.com> ++M: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: Documentation/fb/sm712fb.rst ++F: drivers/video/fbdev/sm712* ++ ++SILVACO I3C DUAL-ROLE MASTER ++M: Miquel Raynal <miquel.raynal@bootlin.com> ++M: Conor Culhane <conor.culhane@silvaco.com> ++L: linux-i3c@lists.infradead.org ++S: Maintained ++F: Documentation/devicetree/bindings/i3c/silvaco,i3c-master.yaml ++F: drivers/i3c/master/svc-i3c-master.c ++ ++SIMPLEFB FB DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/display/simple-framebuffer.yaml ++F: drivers/video/fbdev/simplefb.c ++F: include/linux/platform_data/simplefb.h ++ ++SIMTEC EB110ATX (Chalice CATS) ++M: Simtec Linux Team <linux@simtec.co.uk> ++S: Supported ++W: http://www.simtec.co.uk/products/EB110ATX/ ++ ++SIMTEC EB2410ITX (BAST) ++M: Simtec Linux Team <linux@simtec.co.uk> ++S: Supported ++W: http://www.simtec.co.uk/products/EB2410ITX/ ++F: arch/arm/mach-s3c/bast-ide.c ++F: arch/arm/mach-s3c/bast-irq.c ++F: arch/arm/mach-s3c/mach-bast.c ++ ++SIOX ++M: Thorsten Scherer <t.scherer@eckelmann.de> ++M: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> ++R: Pengutronix Kernel Team <kernel@pengutronix.de> ++S: Supported ++F: drivers/gpio/gpio-siox.c ++F: drivers/siox/* ++F: include/trace/events/siox.h ++ ++SIPHASH PRF ROUTINES ++M: Jason A. Donenfeld <Jason@zx2c4.com> ++S: Maintained ++F: include/linux/siphash.h ++F: lib/siphash.c ++F: lib/test_siphash.c ++ ++SIS 190 ETHERNET DRIVER ++M: Francois Romieu <romieu@fr.zoreil.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/sis/sis190.c ++ ++SIS 900/7016 FAST ETHERNET DRIVER ++M: Daniele Venzano <venza@brownhat.org> ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://www.brownhat.org/sis900.html ++F: drivers/net/ethernet/sis/sis900.* ++ ++SIS FRAMEBUFFER DRIVER ++M: Thomas Winischhofer <thomas@winischhofer.net> ++S: Maintained ++W: http://www.winischhofer.net/linuxsisvga.shtml ++F: Documentation/fb/sisfb.rst ++F: drivers/video/fbdev/sis/ ++F: include/video/sisfb.h ++ ++SIS I2C TOUCHSCREEN DRIVER ++M: Mika Penttilä <mika.penttila@nextfour.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/input/touchscreen/sis_i2c.txt ++F: drivers/input/touchscreen/sis_i2c.c ++ ++SIS USB2VGA DRIVER ++M: Thomas Winischhofer <thomas@winischhofer.net> ++S: Maintained ++W: http://www.winischhofer.at/linuxsisusbvga.shtml ++F: drivers/usb/misc/sisusbvga/ ++ ++SLAB ALLOCATOR ++M: Christoph Lameter <cl@linux.com> ++M: Pekka Enberg <penberg@kernel.org> ++M: David Rientjes <rientjes@google.com> ++M: Joonsoo Kim <iamjoonsoo.kim@lge.com> ++M: Andrew Morton <akpm@linux-foundation.org> ++M: Vlastimil Babka <vbabka@suse.cz> ++L: linux-mm@kvack.org ++S: Maintained ++F: include/linux/sl?b*.h ++F: mm/sl?b* ++ ++SLEEPABLE READ-COPY UPDATE (SRCU) ++M: Lai Jiangshan <jiangshanlai@gmail.com> ++M: "Paul E. McKenney" <paulmck@kernel.org> ++M: Josh Triplett <josh@joshtriplett.org> ++R: Steven Rostedt <rostedt@goodmis.org> ++R: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> ++L: rcu@vger.kernel.org ++S: Supported ++W: http://www.rdrop.com/users/paulmck/RCU/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev ++F: include/linux/srcu*.h ++F: kernel/rcu/srcu*.c ++ ++SMACK SECURITY MODULE ++M: Casey Schaufler <casey@schaufler-ca.com> ++L: linux-security-module@vger.kernel.org ++S: Maintained ++W: http://schaufler-ca.com ++T: git git://github.com/cschaufler/smack-next ++F: Documentation/admin-guide/LSM/Smack.rst ++F: security/smack/ ++ ++SMC91x ETHERNET DRIVER ++M: Nicolas Pitre <nico@fluxnic.net> ++S: Odd Fixes ++F: drivers/net/ethernet/smsc/smc91x.* ++ ++SECURE MONITOR CALL(SMC) CALLING CONVENTION (SMCCC) ++M: Mark Rutland <mark.rutland@arm.com> ++M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> ++M: Sudeep Holla <sudeep.holla@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/firmware/smccc/ ++F: include/linux/arm-smccc.h ++ ++SMM665 HARDWARE MONITOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/smm665.rst ++F: drivers/hwmon/smm665.c ++ ++SMSC EMC2103 HARDWARE MONITOR DRIVER ++M: Steve Glendinning <steve.glendinning@shawell.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/emc2103.rst ++F: drivers/hwmon/emc2103.c ++ ++SMSC SCH5627 HARDWARE MONITOR DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-hwmon@vger.kernel.org ++S: Supported ++F: Documentation/hwmon/sch5627.rst ++F: drivers/hwmon/sch5627.c ++ ++SMSC UFX6000 and UFX7000 USB to VGA DRIVER ++M: Steve Glendinning <steve.glendinning@shawell.net> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/smscufx.c ++ ++SMSC47B397 HARDWARE MONITOR DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/smsc47b397.rst ++F: drivers/hwmon/smsc47b397.c ++ ++SMSC911x ETHERNET DRIVER ++M: Steve Glendinning <steve.glendinning@shawell.net> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/smsc/smsc911x.* ++F: include/linux/smsc911x.h ++ ++SMSC9420 PCI ETHERNET DRIVER ++M: Steve Glendinning <steve.glendinning@shawell.net> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/smsc/smsc9420.* ++ ++SOCIONEXT (SNI) AVE NETWORK DRIVER ++M: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/socionext,uniphier-ave4.yaml ++F: drivers/net/ethernet/socionext/sni_ave.c ++ ++SOCIONEXT (SNI) NETSEC NETWORK DRIVER ++M: Jassi Brar <jaswinder.singh@linaro.org> ++M: Ilias Apalodimas <ilias.apalodimas@linaro.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/socionext-netsec.txt ++F: drivers/net/ethernet/socionext/netsec.c ++ ++SOCIONEXT (SNI) Synquacer SPI DRIVER ++M: Masahisa Kojima <masahisa.kojima@linaro.org> ++M: Jassi Brar <jaswinder.singh@linaro.org> ++L: linux-spi@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/spi/spi-synquacer.txt ++F: drivers/spi/spi-synquacer.c ++ ++SOCIONEXT SYNQUACER I2C DRIVER ++M: Ard Biesheuvel <ardb@kernel.org> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/i2c/i2c-synquacer.txt ++F: drivers/i2c/busses/i2c-synquacer.c ++ ++SOCIONEXT UNIPHIER SOUND DRIVER ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Orphan ++F: sound/soc/uniphier/ ++ ++SOEKRIS NET48XX LED SUPPORT ++M: Chris Boot <bootc@bootc.net> ++S: Maintained ++F: drivers/leds/leds-net48xx.c ++ ++SOFT-IWARP DRIVER (siw) ++M: Bernard Metzler <bmt@zurich.ibm.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++F: drivers/infiniband/sw/siw/ ++F: include/uapi/rdma/siw-abi.h ++ ++SOFT-ROCE DRIVER (rxe) ++M: Zhu Yanjun <zyjzyj2000@gmail.com> ++L: linux-rdma@vger.kernel.org ++S: Supported ++F: drivers/infiniband/sw/rxe/ ++F: include/uapi/rdma/rdma_user_rxe.h ++ ++SOFTLOGIC 6x10 MPEG CODEC ++M: Bluecherry Maintainers <maintainers@bluecherrydvr.com> ++M: Anton Sviridenko <anton@corp.bluecherry.net> ++M: Andrey Utkin <andrey_utkin@fastmail.com> ++M: Ismael Luceno <ismael@iodev.co.uk> ++L: linux-media@vger.kernel.org ++S: Supported ++F: drivers/media/pci/solo6x10/ ++ ++SOFTWARE DELEGATED EXCEPTION INTERFACE (SDEI) ++M: James Morse <james.morse@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/firmware/sdei.txt ++F: drivers/firmware/arm_sdei.c ++F: include/linux/arm_sdei.h ++F: include/uapi/linux/arm_sdei.h ++ ++SOFTWARE NODES ++R: Andy Shevchenko <andriy.shevchenko@linux.intel.com> ++R: Heikki Krogerus <heikki.krogerus@linux.intel.com> ++L: linux-acpi@vger.kernel.org ++S: Maintained ++F: drivers/base/swnode.c ++ ++SOFTWARE RAID (Multiple Disks) SUPPORT ++M: Song Liu <song@kernel.org> ++L: linux-raid@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/song/md.git ++F: drivers/md/Kconfig ++F: drivers/md/Makefile ++F: drivers/md/md* ++F: drivers/md/raid* ++F: include/linux/raid/ ++F: include/uapi/linux/raid/ ++ ++SOLIDRUN CLEARFOG SUPPORT ++M: Russell King <linux@armlinux.org.uk> ++S: Maintained ++F: arch/arm/boot/dts/armada-388-clearfog* ++F: arch/arm/boot/dts/armada-38x-solidrun-* ++ ++SOLIDRUN CUBOX-I/HUMMINGBOARD SUPPORT ++M: Russell King <linux@armlinux.org.uk> ++S: Maintained ++F: arch/arm/boot/dts/imx6*-cubox-i* ++F: arch/arm/boot/dts/imx6*-hummingboard* ++F: arch/arm/boot/dts/imx6*-sr-* ++ ++SONIC NETWORK DRIVER ++M: Thomas Bogendoerfer <tsbogend@alpha.franken.de> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/natsemi/sonic.* ++ ++SONICS SILICON BACKPLANE DRIVER (SSB) ++M: Michael Buesch <m@bues.ch> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/ssb/ ++F: include/linux/ssb/ ++ ++SONY IMX208 SENSOR DRIVER ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/imx208.c ++ ++SONY IMX214 SENSOR DRIVER ++M: Ricardo Ribalda <ribalda@kernel.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/sony,imx214.yaml ++F: drivers/media/i2c/imx214.c ++ ++SONY IMX219 SENSOR DRIVER ++M: Dave Stevenson <dave.stevenson@raspberrypi.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/imx219.yaml ++F: drivers/media/i2c/imx219.c ++ ++SONY IMX258 SENSOR DRIVER ++M: Sakari Ailus <sakari.ailus@linux.intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/imx258.yaml ++F: drivers/media/i2c/imx258.c ++ ++SONY IMX274 SENSOR DRIVER ++M: Leon Luo <leonl@leopardimaging.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/sony,imx274.yaml ++F: drivers/media/i2c/imx274.c ++ ++SONY IMX290 SENSOR DRIVER ++M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/imx290.txt ++F: drivers/media/i2c/imx290.c ++ ++SONY IMX319 SENSOR DRIVER ++M: Bingbu Cao <bingbu.cao@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/imx319.c ++ ++SONY IMX334 SENSOR DRIVER ++M: Paul J. Murphy <paul.j.murphy@intel.com> ++M: Daniele Alessandrelli <daniele.alessandrelli@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/sony,imx334.yaml ++F: drivers/media/i2c/imx334.c ++ ++SONY IMX335 SENSOR DRIVER ++M: Paul J. Murphy <paul.j.murphy@intel.com> ++M: Daniele Alessandrelli <daniele.alessandrelli@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/sony,imx335.yaml ++F: drivers/media/i2c/imx335.c ++ ++SONY IMX355 SENSOR DRIVER ++M: Tianshu Qiu <tian.shu.qiu@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/imx355.c ++ ++SONY IMX412 SENSOR DRIVER ++M: Paul J. Murphy <paul.j.murphy@intel.com> ++M: Daniele Alessandrelli <daniele.alessandrelli@intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/sony,imx412.yaml ++F: drivers/media/i2c/imx412.c ++ ++SONY MEMORYSTICK SUBSYSTEM ++M: Maxim Levitsky <maximlevitsky@gmail.com> ++M: Alex Dubov <oakad@yahoo.com> ++M: Ulf Hansson <ulf.hansson@linaro.org> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git ++F: drivers/memstick/ ++F: include/linux/memstick.h ++ ++SONY VAIO CONTROL DEVICE DRIVER ++M: Mattia Dongili <malattia@linux.it> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++W: http://www.linux.it/~malattia/wiki/index.php/Sony_drivers ++F: Documentation/admin-guide/laptops/sony-laptop.rst ++F: drivers/char/sonypi.c ++F: drivers/platform/x86/sony-laptop.c ++F: include/linux/sony-laptop.h ++ ++SOUND ++M: Jaroslav Kysela <perex@perex.cz> ++M: Takashi Iwai <tiwai@suse.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.alsa-project.org/ ++Q: http://patchwork.kernel.org/project/alsa-devel/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git ++F: Documentation/sound/ ++F: include/sound/ ++F: include/uapi/sound/ ++F: sound/ ++ ++SOUND - COMPRESSED AUDIO ++M: Vinod Koul <vkoul@kernel.org> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git ++F: Documentation/sound/designs/compress-offload.rst ++F: include/sound/compress_driver.h ++F: include/uapi/sound/compress_* ++F: sound/core/compress_offload.c ++F: sound/soc/soc-compress.c ++ ++SOUND - DMAENGINE HELPERS ++M: Lars-Peter Clausen <lars@metafoo.de> ++S: Supported ++F: include/sound/dmaengine_pcm.h ++F: sound/core/pcm_dmaengine.c ++F: sound/soc/soc-generic-dmaengine-pcm.c ++ ++SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC) ++M: Liam Girdwood <lgirdwood@gmail.com> ++M: Mark Brown <broonie@kernel.org> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Supported ++W: http://alsa-project.org/main/index.php/ASoC ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git ++F: Documentation/devicetree/bindings/sound/ ++F: Documentation/sound/soc/ ++F: include/dt-bindings/sound/ ++F: include/sound/soc* ++F: sound/soc/ ++ ++SOUND - SOUND OPEN FIRMWARE (SOF) DRIVERS ++M: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> ++M: Liam Girdwood <lgirdwood@gmail.com> ++M: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> ++M: Kai Vehmanen <kai.vehmanen@linux.intel.com> ++M: Daniel Baluta <daniel.baluta@nxp.com> ++L: sound-open-firmware@alsa-project.org (moderated for non-subscribers) ++S: Supported ++W: https://github.com/thesofproject/linux/ ++F: sound/soc/sof/ ++ ++SOUNDWIRE SUBSYSTEM ++M: Vinod Koul <vkoul@kernel.org> ++M: Bard Liao <yung-chuan.liao@linux.intel.com> ++R: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> ++R: Sanyog Kale <sanyog.r.kale@intel.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire.git ++F: Documentation/driver-api/soundwire/ ++F: drivers/soundwire/ ++F: include/linux/soundwire/ ++ ++SP2 MEDIA DRIVER ++M: Olli Salonen <olli.salonen@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/dvb-frontends/sp2* ++ ++SPARC + UltraSPARC (sparc/sparc64) ++M: "David S. Miller" <davem@davemloft.net> ++L: sparclinux@vger.kernel.org ++S: Maintained ++Q: http://patchwork.ozlabs.org/project/sparclinux/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next.git ++F: arch/sparc/ ++F: drivers/sbus/ ++ ++SPARC SERIAL DRIVERS ++M: "David S. Miller" <davem@davemloft.net> ++L: sparclinux@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc.git ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next.git ++F: drivers/tty/serial/suncore.c ++F: drivers/tty/serial/sunhv.c ++F: drivers/tty/serial/sunsab.c ++F: drivers/tty/serial/sunsab.h ++F: drivers/tty/serial/sunsu.c ++F: drivers/tty/serial/sunzilog.c ++F: drivers/tty/serial/sunzilog.h ++F: drivers/tty/vcc.c ++F: include/linux/sunserialcore.h ++ ++SPARSE CHECKER ++M: "Luc Van Oostenryck" <luc.vanoostenryck@gmail.com> ++L: linux-sparse@vger.kernel.org ++S: Maintained ++W: https://sparse.docs.kernel.org/ ++T: git git://git.kernel.org/pub/scm/devel/sparse/sparse.git ++Q: https://patchwork.kernel.org/project/linux-sparse/list/ ++B: https://bugzilla.kernel.org/enter_bug.cgi?component=Sparse&product=Tools ++F: include/linux/compiler.h ++ ++SPEAKUP CONSOLE SPEECH DRIVER ++M: William Hubbs <w.d.hubbs@gmail.com> ++M: Chris Brannon <chris@the-brannons.com> ++M: Kirk Reiser <kirk@reisers.ca> ++M: Samuel Thibault <samuel.thibault@ens-lyon.org> ++L: speakup@linux-speakup.org ++S: Odd Fixes ++W: http://www.linux-speakup.org/ ++W: https://github.com/linux-speakup/speakup ++B: https://github.com/linux-speakup/speakup/issues ++F: drivers/accessibility/speakup/ ++ ++SPEAR CLOCK FRAMEWORK SUPPORT ++M: Viresh Kumar <vireshk@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.st.com/spear ++F: drivers/clk/spear/ ++ ++SPEAR PLATFORM SUPPORT ++M: Viresh Kumar <vireshk@kernel.org> ++M: Shiraz Hashim <shiraz.linux.kernel@gmail.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++W: http://www.st.com/spear ++F: arch/arm/boot/dts/spear* ++F: arch/arm/mach-spear/ ++ ++SPI NOR SUBSYSTEM ++M: Tudor Ambarus <tudor.ambarus@microchip.com> ++R: Michael Walle <michael@walle.cc> ++R: Pratyush Yadav <p.yadav@ti.com> ++L: linux-mtd@lists.infradead.org ++S: Maintained ++W: http://www.linux-mtd.infradead.org/ ++Q: http://patchwork.ozlabs.org/project/linux-mtd/list/ ++C: irc://irc.oftc.net/mtd ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git spi-nor/next ++F: drivers/mtd/spi-nor/ ++F: include/linux/mtd/spi-nor.h ++ ++SPI SUBSYSTEM ++M: Mark Brown <broonie@kernel.org> ++L: linux-spi@vger.kernel.org ++S: Maintained ++Q: http://patchwork.kernel.org/project/spi-devel-general/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git ++F: Documentation/devicetree/bindings/spi/ ++F: Documentation/spi/ ++F: drivers/spi/ ++F: include/linux/spi/ ++F: include/uapi/linux/spi/ ++F: tools/spi/ ++ ++SPIDERNET NETWORK DRIVER for CELL ++M: Ishizaki Kou <kou.ishizaki@toshiba.co.jp> ++M: Geoff Levand <geoff@infradead.org> ++L: netdev@vger.kernel.org ++L: linuxppc-dev@lists.ozlabs.org ++S: Maintained ++F: Documentation/networking/device_drivers/ethernet/toshiba/spider_net.rst ++F: drivers/net/ethernet/toshiba/spider_net* ++ ++SPMI SUBSYSTEM ++M: Stephen Boyd <sboyd@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi.git ++F: Documentation/devicetree/bindings/spmi/ ++F: drivers/spmi/ ++F: include/dt-bindings/spmi/spmi.h ++F: include/linux/spmi.h ++F: include/trace/events/spmi.h ++ ++SPU FILE SYSTEM ++M: Jeremy Kerr <jk@ozlabs.org> ++L: linuxppc-dev@lists.ozlabs.org ++S: Supported ++W: http://www.ibm.com/developerworks/power/cell/ ++F: Documentation/filesystems/spufs/spufs.rst ++F: arch/powerpc/platforms/cell/spufs/ ++ ++SQUASHFS FILE SYSTEM ++M: Phillip Lougher <phillip@squashfs.org.uk> ++L: squashfs-devel@lists.sourceforge.net (subscribers-only) ++S: Maintained ++W: http://squashfs.org.uk ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next.git ++F: Documentation/filesystems/squashfs.rst ++F: fs/squashfs/ ++ ++SRM (Alpha) environment access ++M: Jan-Benedict Glaw <jbglaw@lug-owl.de> ++S: Maintained ++F: arch/alpha/kernel/srm_env.c ++ ++ST LSM6DSx IMU IIO DRIVER ++M: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++W: http://www.st.com/ ++F: Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml ++F: drivers/iio/imu/st_lsm6dsx/ ++ ++ST MIPID02 CSI-2 TO PARALLEL BRIDGE DRIVER ++M: Mickael Guene <mickael.guene@st.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/i2c/st,st-mipid02.txt ++F: drivers/media/i2c/st-mipid02.c ++ ++ST STM32 I2C/SMBUS DRIVER ++M: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com> ++M: Alain Volmat <alain.volmat@foss.st.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: drivers/i2c/busses/i2c-stm32* ++ ++ST STM32 SPI DRIVER ++M: Alain Volmat <alain.volmat@foss.st.com> ++L: linux-spi@vger.kernel.org ++S: Maintained ++F: drivers/spi/spi-stm32.c ++ ++ST STPDDC60 DRIVER ++M: Daniel Nilsson <daniel.nilsson@flex.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/stpddc60.rst ++F: drivers/hwmon/pmbus/stpddc60.c ++ ++ST VL53L0X ToF RANGER(I2C) IIO DRIVER ++M: Song Qiang <songqiang1304521@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/proximity/st,vl53l0x.yaml ++F: drivers/iio/proximity/vl53l0x-i2c.c ++ ++STABLE BRANCH ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++M: Sasha Levin <sashal@kernel.org> ++L: stable@vger.kernel.org ++S: Supported ++F: Documentation/process/stable-kernel-rules.rst ++ ++STAGING - ATOMISP DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++R: Sakari Ailus <sakari.ailus@linux.intel.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/staging/media/atomisp/ ++ ++STAGING - FIELDBUS SUBSYSTEM ++M: Sven Van Asbroeck <TheSven73@gmail.com> ++S: Maintained ++F: drivers/staging/fieldbus/* ++F: drivers/staging/fieldbus/Documentation/ ++ ++STAGING - HMS ANYBUS-S BUS ++M: Sven Van Asbroeck <TheSven73@gmail.com> ++S: Maintained ++F: drivers/staging/fieldbus/anybuss/ ++ ++STAGING - INDUSTRIAL IO ++M: Jonathan Cameron <jic23@kernel.org> ++L: linux-iio@vger.kernel.org ++S: Odd Fixes ++F: Documentation/devicetree/bindings/staging/iio/ ++F: drivers/staging/iio/ ++ ++STAGING - NVIDIA COMPLIANT EMBEDDED CONTROLLER INTERFACE (nvec) ++M: Marc Dietrich <marvin24@gmx.de> ++L: ac100@lists.launchpad.net (moderated for non-subscribers) ++L: linux-tegra@vger.kernel.org ++S: Maintained ++F: drivers/staging/nvec/ ++ ++STAGING - OLPC SECONDARY DISPLAY CONTROLLER (DCON) ++M: Jens Frederich <jfrederich@gmail.com> ++M: Jon Nettleton <jon.nettleton@gmail.com> ++S: Maintained ++W: http://wiki.laptop.org/go/DCON ++F: drivers/staging/olpc_dcon/ ++ ++STAGING - REALTEK RTL8188EU DRIVERS ++M: Larry Finger <Larry.Finger@lwfinger.net> ++M: Phillip Potter <phil@philpotter.co.uk> ++S: Supported ++F: drivers/staging/r8188eu/ ++ ++STAGING - REALTEK RTL8712U DRIVERS ++M: Larry Finger <Larry.Finger@lwfinger.net> ++M: Florian Schilhabel <florian.c.schilhabel@googlemail.com>. ++S: Odd Fixes ++F: drivers/staging/rtl8712/ ++ ++STAGING - SEPS525 LCD CONTROLLER DRIVERS ++M: Michael Hennerich <michael.hennerich@analog.com> ++L: linux-fbdev@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml ++F: drivers/staging/fbtft/fb_seps525.c ++ ++STAGING - SILICON MOTION SM750 FRAME BUFFER DRIVER ++M: Sudip Mukherjee <sudipm.mukherjee@gmail.com> ++M: Teddy Wang <teddy.wang@siliconmotion.com> ++M: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/staging/sm750fb/ ++ ++STAGING - VIA VT665X DRIVERS ++M: Forest Bond <forest@alittletooquiet.net> ++S: Odd Fixes ++F: drivers/staging/vt665?/ ++ ++STAGING SUBSYSTEM ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++L: linux-staging@lists.linux.dev ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git ++F: drivers/staging/ ++ ++STARFIRE/DURALAN NETWORK DRIVER ++M: Ion Badulescu <ionut@badula.org> ++S: Odd Fixes ++F: drivers/net/ethernet/adaptec/starfire* ++ ++STATIC BRANCH/CALL ++M: Peter Zijlstra <peterz@infradead.org> ++M: Josh Poimboeuf <jpoimboe@redhat.com> ++M: Jason Baron <jbaron@akamai.com> ++R: Steven Rostedt <rostedt@goodmis.org> ++R: Ard Biesheuvel <ardb@kernel.org> ++S: Supported ++F: arch/*/include/asm/jump_label*.h ++F: arch/*/include/asm/static_call*.h ++F: arch/*/kernel/jump_label.c ++F: arch/*/kernel/static_call.c ++F: include/linux/jump_label*.h ++F: include/linux/static_call*.h ++F: kernel/jump_label.c ++F: kernel/static_call.c ++ ++STI AUDIO (ASoC) DRIVERS ++M: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/sound/st,sti-asoc-card.txt ++F: sound/soc/sti/ ++ ++STI CEC DRIVER ++M: Benjamin Gaignard <benjamin.gaignard@linaro.org> ++S: Maintained ++F: Documentation/devicetree/bindings/media/stih-cec.txt ++F: drivers/media/cec/platform/sti/ ++ ++STK1160 USB VIDEO CAPTURE DRIVER ++M: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> ++L: linux-media@vger.kernel.org ++S: Maintained ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/stk1160/ ++ ++STM32 AUDIO (ASoC) DRIVERS ++M: Olivier Moysan <olivier.moysan@foss.st.com> ++M: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml ++F: Documentation/devicetree/bindings/sound/st,stm32-*.yaml ++F: sound/soc/stm/ ++ ++STM32 TIMER/LPTIMER DRIVERS ++M: Fabrice Gasnier <fabrice.gasnier@foss.st.com> ++S: Maintained ++F: Documentation/ABI/testing/*timer-stm32 ++F: Documentation/devicetree/bindings/*/*stm32-*timer* ++F: drivers/*/stm32-*timer* ++F: drivers/pwm/pwm-stm32* ++F: include/linux/*/stm32-*tim* ++ ++STMMAC ETHERNET DRIVER ++M: Giuseppe Cavallaro <peppe.cavallaro@st.com> ++M: Alexandre Torgue <alexandre.torgue@foss.st.com> ++M: Jose Abreu <joabreu@synopsys.com> ++L: netdev@vger.kernel.org ++S: Supported ++W: http://www.stlinux.com ++F: Documentation/networking/device_drivers/ethernet/stmicro/ ++F: drivers/net/ethernet/stmicro/stmmac/ ++ ++SUN3/3X ++M: Sam Creasey <sammy@sammy.net> ++S: Maintained ++W: http://sammy.net/sun3/ ++F: arch/m68k/include/asm/sun3* ++F: arch/m68k/kernel/*sun3* ++F: arch/m68k/sun3*/ ++F: drivers/net/ethernet/i825xx/sun3* ++ ++SUN4I LOW RES ADC ATTACHED TABLET KEYS DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml ++F: drivers/input/keyboard/sun4i-lradc-keys.c ++ ++SUNDANCE NETWORK DRIVER ++M: Denis Kirjanov <kda@linux-powerpc.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/dlink/sundance.c ++ ++SUPERH ++M: Yoshinori Sato <ysato@users.sourceforge.jp> ++M: Rich Felker <dalias@libc.org> ++L: linux-sh@vger.kernel.org ++S: Maintained ++Q: http://patchwork.kernel.org/project/linux-sh/list/ ++F: Documentation/sh/ ++F: arch/sh/ ++F: drivers/sh/ ++ ++SUSPEND TO RAM ++M: "Rafael J. Wysocki" <rafael@kernel.org> ++M: Len Brown <len.brown@intel.com> ++M: Pavel Machek <pavel@ucw.cz> ++L: linux-pm@vger.kernel.org ++S: Supported ++B: https://bugzilla.kernel.org ++F: Documentation/power/ ++F: arch/x86/kernel/acpi/ ++F: drivers/base/power/ ++F: include/linux/freezer.h ++F: include/linux/pm.h ++F: include/linux/suspend.h ++F: kernel/power/ ++ ++SVGA HANDLING ++M: Martin Mares <mj@ucw.cz> ++L: linux-video@atrey.karlin.mff.cuni.cz ++S: Maintained ++F: Documentation/admin-guide/svga.rst ++F: arch/x86/boot/video* ++ ++SWIOTLB SUBSYSTEM ++M: Christoph Hellwig <hch@infradead.org> ++L: iommu@lists.linux-foundation.org ++S: Supported ++W: http://git.infradead.org/users/hch/dma-mapping.git ++T: git git://git.infradead.org/users/hch/dma-mapping.git ++F: arch/*/kernel/pci-swiotlb.c ++F: include/linux/swiotlb.h ++F: kernel/dma/swiotlb.c ++ ++SWITCHDEV ++M: Jiri Pirko <jiri@resnulli.us> ++M: Ivan Vecera <ivecera@redhat.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: include/net/switchdev.h ++F: net/switchdev/ ++ ++SY8106A REGULATOR DRIVER ++M: Icenowy Zheng <icenowy@aosc.io> ++S: Maintained ++F: Documentation/devicetree/bindings/regulator/silergy,sy8106a.yaml ++F: drivers/regulator/sy8106a-regulator.c ++ ++SYNC FILE FRAMEWORK ++M: Sumit Semwal <sumit.semwal@linaro.org> ++R: Gustavo Padovan <gustavo@padovan.org> ++L: linux-media@vger.kernel.org ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/driver-api/sync_file.rst ++F: drivers/dma-buf/dma-fence* ++F: drivers/dma-buf/sw_sync.c ++F: drivers/dma-buf/sync_* ++F: include/linux/sync_file.h ++F: include/uapi/linux/sync_file.h ++ ++SYNOPSYS ARC ARCHITECTURE ++M: Vineet Gupta <vgupta@kernel.org> ++L: linux-snps-arc@lists.infradead.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git ++F: Documentation/devicetree/bindings/arc/* ++F: Documentation/devicetree/bindings/interrupt-controller/snps,arc* ++F: arch/arc/ ++F: drivers/clocksource/arc_timer.c ++F: drivers/tty/serial/arc_uart.c ++ ++SYNOPSYS ARC HSDK SDP pll clock driver ++M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> ++S: Supported ++F: Documentation/devicetree/bindings/clock/snps,hsdk-pll-clock.txt ++F: drivers/clk/clk-hsdk-pll.c ++ ++SYNOPSYS ARC SDP clock driver ++M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> ++S: Supported ++F: Documentation/devicetree/bindings/clock/snps,pll-clock.txt ++F: drivers/clk/axs10x/* ++ ++SYNOPSYS ARC SDP platform support ++M: Alexey Brodkin <abrodkin@synopsys.com> ++S: Supported ++F: Documentation/devicetree/bindings/arc/axs10* ++F: arch/arc/boot/dts/ax* ++F: arch/arc/plat-axs10x ++ ++SYNOPSYS AXS10x RESET CONTROLLER DRIVER ++M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> ++S: Supported ++F: Documentation/devicetree/bindings/reset/snps,axs10x-reset.txt ++F: drivers/reset/reset-axs10x.c ++ ++SYNOPSYS CREG GPIO DRIVER ++M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> ++S: Maintained ++F: Documentation/devicetree/bindings/gpio/snps,creg-gpio.txt ++F: drivers/gpio/gpio-creg-snps.c ++ ++SYNOPSYS DESIGNWARE 8250 UART DRIVER ++R: Andy Shevchenko <andriy.shevchenko@linux.intel.com> ++S: Maintained ++F: drivers/tty/serial/8250/8250_dw.c ++F: drivers/tty/serial/8250/8250_dwlib.* ++F: drivers/tty/serial/8250/8250_lpss.c ++ ++SYNOPSYS DESIGNWARE APB GPIO DRIVER ++M: Hoan Tran <hoan@os.amperecomputing.com> ++M: Serge Semin <fancer.lancer@gmail.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/gpio/snps,dw-apb-gpio.yaml ++F: drivers/gpio/gpio-dwapb.c ++ ++SYNOPSYS DESIGNWARE APB SSI DRIVER ++M: Serge Semin <fancer.lancer@gmail.com> ++L: linux-spi@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml ++F: drivers/spi/spi-dw* ++ ++SYNOPSYS DESIGNWARE AXI DMAC DRIVER ++M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> ++S: Maintained ++F: Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml ++F: drivers/dma/dw-axi-dmac/ ++ ++SYNOPSYS DESIGNWARE DMAC DRIVER ++M: Viresh Kumar <vireshk@kernel.org> ++R: Andy Shevchenko <andriy.shevchenko@linux.intel.com> ++S: Maintained ++F: Documentation/devicetree/bindings/dma/snps,dma-spear1340.yaml ++F: drivers/dma/dw/ ++F: include/dt-bindings/dma/dw-dmac.h ++F: include/linux/dma/dw.h ++F: include/linux/platform_data/dma-dw.h ++ ++SYNOPSYS DESIGNWARE ENTERPRISE ETHERNET DRIVER ++M: Jose Abreu <Jose.Abreu@synopsys.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/synopsys/ ++ ++SYNOPSYS DESIGNWARE ETHERNET XPCS DRIVER ++M: Jose Abreu <Jose.Abreu@synopsys.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/pcs/pcs-xpcs.c ++F: drivers/net/pcs/pcs-xpcs.h ++F: include/linux/pcs/pcs-xpcs.h ++ ++SYNOPSYS DESIGNWARE I2C DRIVER ++M: Jarkko Nikula <jarkko.nikula@linux.intel.com> ++R: Andy Shevchenko <andriy.shevchenko@linux.intel.com> ++R: Mika Westerberg <mika.westerberg@linux.intel.com> ++L: linux-i2c@vger.kernel.org ++S: Maintained ++F: drivers/i2c/busses/i2c-designware-* ++ ++SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER ++M: Jaehoon Chung <jh80.chung@samsung.com> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++F: drivers/mmc/host/dw_mmc* ++ ++SYNOPSYS HSDK RESET CONTROLLER DRIVER ++M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> ++S: Supported ++F: Documentation/devicetree/bindings/reset/snps,hsdk-reset.txt ++F: drivers/reset/reset-hsdk.c ++F: include/dt-bindings/reset/snps,hsdk-reset.h ++ ++SYNOPSYS SDHCI COMPLIANT DWC MSHC DRIVER ++M: Prabu Thangamuthu <prabu.t@synopsys.com> ++M: Manjunath M B <manjumb@synopsys.com> ++L: linux-mmc@vger.kernel.org ++S: Maintained ++F: drivers/mmc/host/sdhci-pci-dwc-mshc.c ++ ++SYSTEM CONFIGURATION (SYSCON) ++M: Lee Jones <lee.jones@linaro.org> ++M: Arnd Bergmann <arnd@arndb.de> ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git ++F: drivers/mfd/syscon.c ++ ++SYSTEM CONTROL & POWER/MANAGEMENT INTERFACE (SCPI/SCMI) Message Protocol drivers ++M: Sudeep Holla <sudeep.holla@arm.com> ++R: Cristian Marussi <cristian.marussi@arm.com> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/firmware/arm,sc[mp]i.yaml ++F: drivers/clk/clk-sc[mp]i.c ++F: drivers/cpufreq/sc[mp]i-cpufreq.c ++F: drivers/firmware/arm_scmi/ ++F: drivers/firmware/arm_scpi.c ++F: drivers/regulator/scmi-regulator.c ++F: drivers/reset/reset-scmi.c ++F: include/linux/sc[mp]i_protocol.h ++F: include/trace/events/scmi.h ++F: include/uapi/linux/virtio_scmi.h ++ ++SYSTEM RESET/SHUTDOWN DRIVERS ++M: Sebastian Reichel <sre@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git ++F: Documentation/devicetree/bindings/power/reset/ ++F: drivers/power/reset/ ++ ++SYSTEM TRACE MODULE CLASS ++M: Alexander Shishkin <alexander.shishkin@linux.intel.com> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/ash/stm.git ++F: Documentation/trace/stm.rst ++F: drivers/hwtracing/stm/ ++F: include/linux/stm.h ++F: include/uapi/linux/stm.h ++ ++SYSTEM76 ACPI DRIVER ++M: Jeremy Soller <jeremy@system76.com> ++M: System76 Product Development <productdev@system76.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/system76_acpi.c ++ ++SYSV FILESYSTEM ++M: Christoph Hellwig <hch@infradead.org> ++S: Maintained ++F: Documentation/filesystems/sysv-fs.rst ++F: fs/sysv/ ++F: include/linux/sysv_fs.h ++ ++TASKSTATS STATISTICS INTERFACE ++M: Balbir Singh <bsingharora@gmail.com> ++S: Maintained ++F: Documentation/accounting/taskstats* ++F: include/linux/taskstats* ++F: kernel/taskstats.c ++ ++TC subsystem ++M: Jamal Hadi Salim <jhs@mojatatu.com> ++M: Cong Wang <xiyou.wangcong@gmail.com> ++M: Jiri Pirko <jiri@resnulli.us> ++L: netdev@vger.kernel.org ++S: Maintained ++F: include/net/pkt_cls.h ++F: include/net/pkt_sched.h ++F: include/net/tc_act/ ++F: include/uapi/linux/pkt_cls.h ++F: include/uapi/linux/pkt_sched.h ++F: include/uapi/linux/tc_act/ ++F: include/uapi/linux/tc_ematch/ ++F: net/sched/ ++ ++TC90522 MEDIA DRIVER ++M: Akihiro Tsukada <tskd08@gmail.com> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++F: drivers/media/dvb-frontends/tc90522* ++ ++TCP LOW PRIORITY MODULE ++M: "Wong Hoi Sing, Edison" <hswong3i@gmail.com> ++M: "Hung Hing Lun, Mike" <hlhung3i@gmail.com> ++S: Maintained ++W: http://tcp-lp-mod.sourceforge.net/ ++F: net/ipv4/tcp_lp.c ++ ++TDA10071 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/dvb-frontends/tda10071* ++ ++TDA18212 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/tuners/tda18212* ++ ++TDA18218 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/tuners/tda18218* ++ ++TDA18250 MEDIA DRIVER ++M: Olli Salonen <olli.salonen@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/tuners/tda18250* ++ ++TDA18271 MEDIA DRIVER ++M: Michael Krufky <mkrufky@linuxtv.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://github.com/mkrufky ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mkrufky/tuners.git ++F: drivers/media/tuners/tda18271* ++ ++TDA1997x MEDIA DRIVER ++M: Tim Harvey <tharvey@gateworks.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/i2c/tda1997x.* ++ ++TDA827x MEDIA DRIVER ++M: Michael Krufky <mkrufky@linuxtv.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://github.com/mkrufky ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mkrufky/tuners.git ++F: drivers/media/tuners/tda8290.* ++ ++TDA8290 MEDIA DRIVER ++M: Michael Krufky <mkrufky@linuxtv.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://github.com/mkrufky ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mkrufky/tuners.git ++F: drivers/media/tuners/tda8290.* ++ ++TDA9840 MEDIA DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/tda9840* ++ ++TEA5761 TUNER DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Odd fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/tuners/tea5761.* ++ ++TEA5767 TUNER DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/tuners/tea5767.* ++ ++TEA6415C MEDIA DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/tea6415c* ++ ++TEA6420 MEDIA DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/i2c/tea6420* ++ ++TEAM DRIVER ++M: Jiri Pirko <jiri@resnulli.us> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/team/ ++F: include/linux/if_team.h ++F: include/uapi/linux/if_team.h ++ ++TECHNOLOGIC SYSTEMS TS-5500 PLATFORM SUPPORT ++M: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> ++S: Maintained ++F: arch/x86/platform/ts5500/ ++ ++TECHNOTREND USB IR RECEIVER ++M: Sean Young <sean@mess.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/rc/ttusbir.c ++ ++TECHWELL TW9910 VIDEO DECODER ++L: linux-media@vger.kernel.org ++S: Orphan ++F: drivers/media/i2c/tw9910.c ++F: include/media/i2c/tw9910.h ++ ++TEE SUBSYSTEM ++M: Jens Wiklander <jens.wiklander@linaro.org> ++R: Sumit Garg <sumit.garg@linaro.org> ++L: op-tee@lists.trustedfirmware.org ++S: Maintained ++F: Documentation/staging/tee.rst ++F: drivers/tee/ ++F: include/linux/tee_drv.h ++F: include/uapi/linux/tee.h ++ ++TEGRA ARCHITECTURE SUPPORT ++M: Thierry Reding <thierry.reding@gmail.com> ++M: Jonathan Hunter <jonathanh@nvidia.com> ++L: linux-tegra@vger.kernel.org ++S: Supported ++Q: http://patchwork.ozlabs.org/project/linux-tegra/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git ++N: [^a-z]tegra ++ ++TEGRA CLOCK DRIVER ++M: Peter De Schrijver <pdeschrijver@nvidia.com> ++M: Prashant Gaikwad <pgaikwad@nvidia.com> ++S: Supported ++F: drivers/clk/tegra/ ++ ++TEGRA DMA DRIVERS ++M: Laxman Dewangan <ldewangan@nvidia.com> ++M: Jon Hunter <jonathanh@nvidia.com> ++S: Supported ++F: drivers/dma/tegra* ++ ++TEGRA I2C DRIVER ++M: Laxman Dewangan <ldewangan@nvidia.com> ++R: Dmitry Osipenko <digetx@gmail.com> ++S: Supported ++F: drivers/i2c/busses/i2c-tegra.c ++ ++TEGRA IOMMU DRIVERS ++M: Thierry Reding <thierry.reding@gmail.com> ++R: Krishna Reddy <vdumpa@nvidia.com> ++L: linux-tegra@vger.kernel.org ++S: Supported ++F: drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c ++F: drivers/iommu/tegra* ++ ++TEGRA KBC DRIVER ++M: Laxman Dewangan <ldewangan@nvidia.com> ++S: Supported ++F: drivers/input/keyboard/tegra-kbc.c ++ ++TEGRA NAND DRIVER ++M: Stefan Agner <stefan@agner.ch> ++M: Lucas Stach <dev@lynxeye.de> ++S: Maintained ++F: Documentation/devicetree/bindings/mtd/nvidia-tegra20-nand.txt ++F: drivers/mtd/nand/raw/tegra_nand.c ++ ++TEGRA PWM DRIVER ++M: Thierry Reding <thierry.reding@gmail.com> ++S: Supported ++F: drivers/pwm/pwm-tegra.c ++ ++TEGRA SERIAL DRIVER ++M: Laxman Dewangan <ldewangan@nvidia.com> ++S: Supported ++F: drivers/tty/serial/serial-tegra.c ++ ++TEGRA SPI DRIVER ++M: Laxman Dewangan <ldewangan@nvidia.com> ++S: Supported ++F: drivers/spi/spi-tegra* ++ ++TEGRA QUAD SPI DRIVER ++M: Thierry Reding <thierry.reding@gmail.com> ++M: Jonathan Hunter <jonathanh@nvidia.com> ++M: Sowjanya Komatineni <skomatineni@nvidia.com> ++L: linux-tegra@vger.kernel.org ++S: Maintained ++F: drivers/spi/spi-tegra210-quad.c ++ ++TEGRA VIDEO DRIVER ++M: Thierry Reding <thierry.reding@gmail.com> ++M: Jonathan Hunter <jonathanh@nvidia.com> ++M: Sowjanya Komatineni <skomatineni@nvidia.com> ++L: linux-media@vger.kernel.org ++L: linux-tegra@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt ++F: drivers/staging/media/tegra-video/ ++ ++TEGRA XUSB PADCTL DRIVER ++M: JC Kuo <jckuo@nvidia.com> ++S: Supported ++F: drivers/phy/tegra/xusb* ++ ++TEHUTI ETHERNET DRIVER ++M: Andy Gospodarek <andy@greyhouse.net> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/ethernet/tehuti/* ++ ++TELECOM CLOCK DRIVER FOR MCPL0010 ++M: Mark Gross <mark.gross@intel.com> ++S: Supported ++F: drivers/char/tlclk.c ++ ++TEMPO SEMICONDUCTOR DRIVERS ++M: Steven Eckhoff <steven.eckhoff.opensource@gmail.com> ++S: Maintained ++F: Documentation/devicetree/bindings/sound/tscs*.txt ++F: sound/soc/codecs/tscs*.c ++F: sound/soc/codecs/tscs*.h ++ ++TENSILICA XTENSA PORT (xtensa) ++M: Chris Zankel <chris@zankel.net> ++M: Max Filippov <jcmvbkbc@gmail.com> ++L: linux-xtensa@linux-xtensa.org ++S: Maintained ++T: git git://github.com/czankel/xtensa-linux.git ++F: arch/xtensa/ ++F: drivers/irqchip/irq-xtensa-* ++ ++TEXAS INSTRUMENTS ASoC DRIVERS ++M: Peter Ujfalusi <peter.ujfalusi@gmail.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: sound/soc/ti/ ++ ++TEXAS INSTRUMENTS' DAC7612 DAC DRIVER ++M: Ricardo Ribalda <ribalda@kernel.org> ++L: linux-iio@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml ++F: drivers/iio/dac/ti-dac7612.c ++ ++TEXAS INSTRUMENTS DMA DRIVERS ++M: Peter Ujfalusi <peter.ujfalusi@gmail.com> ++L: dmaengine@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt ++F: Documentation/devicetree/bindings/dma/ti-edma.txt ++F: Documentation/devicetree/bindings/dma/ti/ ++F: drivers/dma/ti/ ++X: drivers/dma/ti/cppi41.c ++F: include/linux/dma/k3-udma-glue.h ++F: include/linux/dma/ti-cppi5.h ++F: include/linux/dma/k3-psil.h ++ ++TEXAS INSTRUMENTS' SYSTEM CONTROL INTERFACE (TISCI) PROTOCOL DRIVER ++M: Nishanth Menon <nm@ti.com> ++M: Tero Kristo <kristo@kernel.org> ++M: Santosh Shilimkar <ssantosh@kernel.org> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/arm/keystone/ti,k3-sci-common.yaml ++F: Documentation/devicetree/bindings/arm/keystone/ti,sci.txt ++F: Documentation/devicetree/bindings/clock/ti,sci-clk.yaml ++F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml ++F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.yaml ++F: Documentation/devicetree/bindings/reset/ti,sci-reset.yaml ++F: Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml ++F: drivers/clk/keystone/sci-clk.c ++F: drivers/firmware/ti_sci* ++F: drivers/irqchip/irq-ti-sci-inta.c ++F: drivers/irqchip/irq-ti-sci-intr.c ++F: drivers/reset/reset-ti-sci.c ++F: drivers/soc/ti/ti_sci_inta_msi.c ++F: drivers/soc/ti/ti_sci_pm_domains.c ++F: include/dt-bindings/soc/ti,sci_pm_domain.h ++F: include/linux/soc/ti/ti_sci_inta_msi.h ++F: include/linux/soc/ti/ti_sci_protocol.h ++ ++TEXAS INSTRUMENTS TPS23861 PoE PSE DRIVER ++M: Robert Marko <robert.marko@sartura.hr> ++M: Luka Perkov <luka.perkov@sartura.hr> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/hwmon/ti,tps23861.yaml ++F: Documentation/hwmon/tps23861.rst ++F: drivers/hwmon/tps23861.c ++ ++TEXAS INSTRUMENTS' TMP117 TEMPERATURE SENSOR DRIVER ++M: Puranjay Mohan <puranjay12@gmail.com> ++L: linux-iio@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/iio/temperature/ti,tmp117.yaml ++F: drivers/iio/temperature/tmp117.c ++ ++THANKO'S RAREMONO AM/FM/SW RADIO RECEIVER USB DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/radio/radio-raremono.c ++ ++THERMAL ++M: Rafael J. Wysocki <rafael@kernel.org> ++M: Daniel Lezcano <daniel.lezcano@linaro.org> ++R: Amit Kucheria <amitk@kernel.org> ++R: Zhang Rui <rui.zhang@intel.com> ++L: linux-pm@vger.kernel.org ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-pm/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git thermal ++F: Documentation/devicetree/bindings/thermal/ ++F: drivers/thermal/ ++F: include/linux/cpu_cooling.h ++F: include/linux/thermal.h ++F: include/uapi/linux/thermal.h ++F: tools/thermal/ ++ ++THERMAL DRIVER FOR AMLOGIC SOCS ++M: Guillaume La Roque <glaroque@baylibre.com> ++L: linux-pm@vger.kernel.org ++L: linux-amlogic@lists.infradead.org ++S: Supported ++W: http://linux-meson.com/ ++F: Documentation/devicetree/bindings/thermal/amlogic,thermal.yaml ++F: drivers/thermal/amlogic_thermal.c ++ ++THERMAL/CPU_COOLING ++M: Amit Daniel Kachhap <amit.kachhap@gmail.com> ++M: Daniel Lezcano <daniel.lezcano@linaro.org> ++M: Viresh Kumar <viresh.kumar@linaro.org> ++R: Lukasz Luba <lukasz.luba@arm.com> ++L: linux-pm@vger.kernel.org ++S: Supported ++F: Documentation/driver-api/thermal/cpu-cooling-api.rst ++F: Documentation/driver-api/thermal/cpu-idle-cooling.rst ++F: drivers/thermal/cpufreq_cooling.c ++F: drivers/thermal/cpuidle_cooling.c ++F: include/linux/cpu_cooling.h ++ ++THERMAL/POWER_ALLOCATOR ++M: Lukasz Luba <lukasz.luba@arm.com> ++L: linux-pm@vger.kernel.org ++S: Maintained ++F: Documentation/driver-api/thermal/power_allocator.rst ++F: drivers/thermal/gov_power_allocator.c ++F: include/trace/events/thermal_power_allocator.h ++ ++THINKPAD ACPI EXTRAS DRIVER ++M: Henrique de Moraes Holschuh <hmh@hmh.eng.br> ++L: ibm-acpi-devel@lists.sourceforge.net ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++W: http://ibm-acpi.sourceforge.net ++W: http://thinkwiki.org/wiki/Ibm-acpi ++T: git git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git ++F: drivers/platform/x86/thinkpad_acpi.c ++ ++THINKPAD LMI DRIVER ++M: Mark Pearson <markpearson@lenovo.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-class-firmware-attributes ++F: drivers/platform/x86/think-lmi.? ++ ++THUNDERBOLT DMA TRAFFIC TEST DRIVER ++M: Isaac Hazan <isaac.hazan@intel.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/thunderbolt/dma_test.c ++ ++THUNDERBOLT DRIVER ++M: Andreas Noever <andreas.noever@gmail.com> ++M: Michael Jamet <michael.jamet@intel.com> ++M: Mika Westerberg <mika.westerberg@linux.intel.com> ++M: Yehezkel Bernat <YehezkelShB@gmail.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git ++F: Documentation/admin-guide/thunderbolt.rst ++F: drivers/thunderbolt/ ++F: include/linux/thunderbolt.h ++ ++THUNDERBOLT NETWORK DRIVER ++M: Michael Jamet <michael.jamet@intel.com> ++M: Mika Westerberg <mika.westerberg@linux.intel.com> ++M: Yehezkel Bernat <YehezkelShB@gmail.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/thunderbolt.c ++ ++THUNDERX GPIO DRIVER ++M: Robert Richter <rric@kernel.org> ++S: Odd Fixes ++F: drivers/gpio/gpio-thunderx.c ++ ++TI ADS131E0X ADC SERIES DRIVER ++M: Tomislav Denis <tomislav.denis@avl.com> ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/adc/ti,ads131e08.yaml ++F: drivers/iio/adc/ti-ads131e08.c ++ ++TI AM437X VPFE DRIVER ++M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git ++F: drivers/media/platform/am437x/ ++ ++TI BANDGAP AND THERMAL DRIVER ++M: Eduardo Valentin <edubezval@gmail.com> ++M: Keerthy <j-keerthy@ti.com> ++L: linux-pm@vger.kernel.org ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: drivers/thermal/ti-soc-thermal/ ++ ++TI BQ27XXX POWER SUPPLY DRIVER ++F: drivers/power/supply/bq27xxx_battery.c ++F: drivers/power/supply/bq27xxx_battery_i2c.c ++F: include/linux/power/bq27xxx_battery.h ++ ++TI CDCE706 CLOCK DRIVER ++M: Max Filippov <jcmvbkbc@gmail.com> ++S: Maintained ++F: drivers/clk/clk-cdce706.c ++ ++TI CLOCK DRIVER ++M: Tero Kristo <kristo@kernel.org> ++L: linux-omap@vger.kernel.org ++S: Odd Fixes ++F: drivers/clk/ti/ ++F: include/linux/clk/ti.h ++ ++TI DAVINCI MACHINE SUPPORT ++M: Sekhar Nori <nsekhar@ti.com> ++R: Bartosz Golaszewski <brgl@bgdev.pl> ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git ++F: Documentation/devicetree/bindings/i2c/i2c-davinci.txt ++F: arch/arm/boot/dts/da850* ++F: arch/arm/mach-davinci/ ++F: drivers/i2c/busses/i2c-davinci.c ++ ++TI DAVINCI SERIES CLOCK DRIVER ++M: David Lechner <david@lechnology.com> ++R: Sekhar Nori <nsekhar@ti.com> ++S: Maintained ++F: Documentation/devicetree/bindings/clock/ti/davinci/ ++F: drivers/clk/davinci/ ++ ++TI DAVINCI SERIES GPIO DRIVER ++M: Keerthy <j-keerthy@ti.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/gpio/gpio-davinci.yaml ++F: drivers/gpio/gpio-davinci.c ++ ++TI DAVINCI SERIES MEDIA DRIVER ++M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git ++F: drivers/media/platform/davinci/ ++F: include/media/davinci/ ++ ++TI ENHANCED QUADRATURE ENCODER PULSE (eQEP) DRIVER ++R: David Lechner <david@lechnology.com> ++L: linux-iio@vger.kernel.org ++F: Documentation/devicetree/bindings/counter/ti-eqep.yaml ++F: drivers/counter/ti-eqep.c ++ ++TI ETHERNET SWITCH DRIVER (CPSW) ++R: Grygorii Strashko <grygorii.strashko@ti.com> ++L: linux-omap@vger.kernel.org ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/ti/cpsw* ++F: drivers/net/ethernet/ti/davinci* ++ ++TI FLASH MEDIA MEMORYSTICK/MMC DRIVERS ++M: Alex Dubov <oakad@yahoo.com> ++S: Maintained ++W: http://tifmxx.berlios.de/ ++F: drivers/memstick/host/tifm_ms.c ++F: drivers/misc/tifm* ++F: drivers/mmc/host/tifm_sd.c ++F: include/linux/tifm.h ++ ++TI KEYSTONE MULTICORE NAVIGATOR DRIVERS ++M: Santosh Shilimkar <ssantosh@kernel.org> ++L: linux-kernel@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git ++F: drivers/soc/ti/* ++ ++TI LM49xxx FAMILY ASoC CODEC DRIVERS ++M: M R Swami Reddy <mr.swami.reddy@ti.com> ++M: Vishwas A Deshpande <vishwas.a.deshpande@ti.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: sound/soc/codecs/isabelle* ++F: sound/soc/codecs/lm49453* ++ ++TI PCM3060 ASoC CODEC DRIVER ++M: Kirill Marinushkin <kmarinushkin@birdec.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: Documentation/devicetree/bindings/sound/pcm3060.txt ++F: sound/soc/codecs/pcm3060* ++ ++TI TAS571X FAMILY ASoC CODEC DRIVER ++M: Kevin Cernekee <cernekee@chromium.org> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Odd Fixes ++F: sound/soc/codecs/tas571x* ++ ++TI TRF7970A NFC DRIVER ++M: Mark Greer <mgreer@animalcreek.com> ++L: linux-wireless@vger.kernel.org ++L: linux-nfc@lists.01.org (subscribers-only) ++S: Supported ++F: Documentation/devicetree/bindings/net/nfc/trf7970a.txt ++F: drivers/nfc/trf7970a.c ++ ++TI TSC2046 ADC DRIVER ++M: Oleksij Rempel <o.rempel@pengutronix.de> ++R: kernel@pengutronix.de ++L: linux-iio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml ++F: drivers/iio/adc/ti-tsc2046.c ++ ++TI TWL4030 SERIES SOC CODEC DRIVER ++M: Peter Ujfalusi <peter.ujfalusi@gmail.com> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: sound/soc/codecs/twl4030* ++ ++TI VPE/CAL DRIVERS ++M: Benoit Parrot <bparrot@ti.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: http://linuxtv.org/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++F: Documentation/devicetree/bindings/media/ti,cal.yaml ++F: Documentation/devicetree/bindings/media/ti,vpe.yaml ++F: drivers/media/platform/ti-vpe/ ++ ++TI WILINK WIRELESS DRIVERS ++L: linux-wireless@vger.kernel.org ++S: Orphan ++W: https://wireless.wiki.kernel.org/en/users/Drivers/wl12xx ++W: https://wireless.wiki.kernel.org/en/users/Drivers/wl1251 ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/luca/wl12xx.git ++F: drivers/net/wireless/ti/ ++F: include/linux/wl12xx.h ++ ++TIMEKEEPING, CLOCKSOURCE CORE, NTP, ALARMTIMER ++M: John Stultz <john.stultz@linaro.org> ++M: Thomas Gleixner <tglx@linutronix.de> ++R: Stephen Boyd <sboyd@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core ++F: include/linux/clocksource.h ++F: include/linux/time.h ++F: include/linux/timex.h ++F: include/uapi/linux/time.h ++F: include/uapi/linux/timex.h ++F: kernel/time/alarmtimer.c ++F: kernel/time/clocksource.c ++F: kernel/time/ntp.c ++F: kernel/time/time*.c ++F: tools/testing/selftests/timers/ ++ ++TIPC NETWORK LAYER ++M: Jon Maloy <jmaloy@redhat.com> ++M: Ying Xue <ying.xue@windriver.com> ++L: netdev@vger.kernel.org (core kernel code) ++L: tipc-discussion@lists.sourceforge.net (user apps, general discussion) ++S: Maintained ++W: http://tipc.sourceforge.net/ ++F: include/uapi/linux/tipc*.h ++F: net/tipc/ ++ ++TLAN NETWORK DRIVER ++M: Samuel Chessman <chessman@tux.org> ++L: tlan-devel@lists.sourceforge.net (subscribers-only) ++S: Maintained ++W: http://sourceforge.net/projects/tlan/ ++F: Documentation/networking/device_drivers/ethernet/ti/tlan.rst ++F: drivers/net/ethernet/ti/tlan.* ++ ++TM6000 VIDEO4LINUX DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Odd fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/admin-guide/media/tm6000* ++F: drivers/media/usb/tm6000/ ++ ++TMIO/SDHI MMC DRIVER ++M: Wolfram Sang <wsa+renesas@sang-engineering.com> ++L: linux-mmc@vger.kernel.org ++S: Supported ++F: drivers/mmc/host/renesas_sdhi* ++F: drivers/mmc/host/tmio_mmc* ++F: include/linux/mfd/tmio.h ++ ++TMP401 HARDWARE MONITOR DRIVER ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/tmp401.rst ++F: drivers/hwmon/tmp401.c ++ ++TMP513 HARDWARE MONITOR DRIVER ++M: Eric Tremblay <etremblay@distech-controls.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/tmp513.rst ++F: drivers/hwmon/tmp513.c ++ ++TMPFS (SHMEM FILESYSTEM) ++M: Hugh Dickins <hughd@google.com> ++L: linux-mm@kvack.org ++S: Maintained ++F: include/linux/shmem_fs.h ++F: mm/shmem.c ++ ++TOMOYO SECURITY MODULE ++M: Kentaro Takeda <takedakn@nttdata.co.jp> ++M: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> ++L: tomoyo-dev-en@lists.osdn.me (subscribers-only, for developers in English) ++L: tomoyo-users-en@lists.osdn.me (subscribers-only, for users in English) ++L: tomoyo-dev@lists.osdn.me (subscribers-only, for developers in Japanese) ++L: tomoyo-users@lists.osdn.me (subscribers-only, for users in Japanese) ++S: Maintained ++W: https://tomoyo.osdn.jp/ ++F: security/tomoyo/ ++ ++TOPSTAR LAPTOP EXTRAS DRIVER ++M: Herton Ronaldo Krzesinski <herton@canonical.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/topstar-laptop.c ++ ++TORTURE-TEST MODULES ++M: Davidlohr Bueso <dave@stgolabs.net> ++M: "Paul E. McKenney" <paulmck@kernel.org> ++M: Josh Triplett <josh@joshtriplett.org> ++L: linux-kernel@vger.kernel.org ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev ++F: Documentation/RCU/torture.rst ++F: kernel/locking/locktorture.c ++F: kernel/rcu/rcuscale.c ++F: kernel/rcu/rcutorture.c ++F: kernel/rcu/refscale.c ++F: kernel/torture.c ++ ++TOSHIBA ACPI EXTRAS DRIVER ++M: Azael Avalos <coproscefalo@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/toshiba_acpi.c ++ ++TOSHIBA BLUETOOTH DRIVER ++M: Azael Avalos <coproscefalo@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/toshiba_bluetooth.c ++ ++TOSHIBA HDD ACTIVE PROTECTION SENSOR DRIVER ++M: Azael Avalos <coproscefalo@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/toshiba_haps.c ++ ++TOSHIBA SMM DRIVER ++M: Jonathan Buzzard <jonathan@buzzard.org.uk> ++S: Maintained ++W: http://www.buzzard.org.uk/toshiba/ ++F: drivers/char/toshiba.c ++F: include/linux/toshiba.h ++F: include/uapi/linux/toshiba.h ++ ++TOSHIBA TC358743 DRIVER ++M: Mats Randgaard <matrandg@cisco.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/tc358743* ++F: include/media/i2c/tc358743.h ++ ++TOSHIBA WMI HOTKEYS DRIVER ++M: Azael Avalos <coproscefalo@gmail.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/toshiba-wmi.c ++ ++TPM DEVICE DRIVER ++M: Peter Huewe <peterhuewe@gmx.de> ++M: Jarkko Sakkinen <jarkko@kernel.org> ++R: Jason Gunthorpe <jgg@ziepe.ca> ++L: linux-integrity@vger.kernel.org ++S: Maintained ++W: https://kernsec.org/wiki/index.php/Linux_Kernel_Integrity ++Q: https://patchwork.kernel.org/project/linux-integrity/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git ++F: drivers/char/tpm/ ++ ++TRACING ++M: Steven Rostedt <rostedt@goodmis.org> ++M: Ingo Molnar <mingo@redhat.com> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core ++F: Documentation/trace/ftrace.rst ++F: arch/*/*/*/ftrace.h ++F: arch/*/kernel/ftrace.c ++F: fs/tracefs/ ++F: include/*/ftrace.h ++F: include/linux/trace*.h ++F: include/trace/ ++F: kernel/trace/ ++F: tools/testing/selftests/ftrace/ ++ ++TRACING MMIO ACCESSES (MMIOTRACE) ++M: Steven Rostedt <rostedt@goodmis.org> ++M: Ingo Molnar <mingo@kernel.org> ++R: Karol Herbst <karolherbst@gmail.com> ++R: Pekka Paalanen <ppaalanen@gmail.com> ++L: linux-kernel@vger.kernel.org ++L: nouveau@lists.freedesktop.org ++S: Maintained ++F: arch/x86/mm/kmmio.c ++F: arch/x86/mm/mmio-mod.c ++F: arch/x86/mm/testmmiotrace.c ++F: include/linux/mmiotrace.h ++F: kernel/trace/trace_mmiotrace.c ++ ++TRACING OS NOISE / LATENCY TRACERS ++M: Steven Rostedt <rostedt@goodmis.org> ++M: Daniel Bristot de Oliveira <bristot@kernel.org> ++S: Maintained ++F: kernel/trace/trace_osnoise.c ++F: include/trace/events/osnoise.h ++F: kernel/trace/trace_hwlat.c ++F: kernel/trace/trace_irqsoff.c ++F: kernel/trace/trace_sched_wakeup.c ++F: Documentation/trace/osnoise-tracer.rst ++F: Documentation/trace/timerlat-tracer.rst ++F: Documentation/trace/hwlat_detector.rst ++F: arch/*/kernel/trace.c ++ ++TRADITIONAL CHINESE DOCUMENTATION ++M: Hu Haowen <src.res@email.cn> ++L: linux-doc-tw-discuss@lists.sourceforge.net ++S: Maintained ++W: https://github.com/srcres258/linux-doc ++T: git git://github.com/srcres258/linux-doc.git doc-zh-tw ++F: Documentation/translations/zh_TW/ ++ ++TRIVIAL PATCHES ++M: Jiri Kosina <trivial@kernel.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial.git ++K: ^Subject:.*(?i)trivial ++ ++TTY LAYER ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++M: Jiri Slaby <jirislaby@kernel.org> ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git ++F: Documentation/driver-api/serial/ ++F: drivers/tty/ ++F: drivers/tty/serial/serial_core.c ++F: include/linux/selection.h ++F: include/linux/serial.h ++F: include/linux/serial_core.h ++F: include/linux/sysrq.h ++F: include/linux/tty*.h ++F: include/linux/vt.h ++F: include/linux/vt_*.h ++F: include/uapi/linux/serial.h ++F: include/uapi/linux/serial_core.h ++F: include/uapi/linux/tty.h ++ ++TUA9001 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++W: http://palosaari.fi/linux/ ++Q: http://patchwork.linuxtv.org/project/linux-media/list/ ++T: git git://linuxtv.org/anttip/media_tree.git ++F: drivers/media/tuners/tua9001* ++ ++TULIP NETWORK DRIVERS ++L: netdev@vger.kernel.org ++L: linux-parisc@vger.kernel.org ++S: Orphan ++F: drivers/net/ethernet/dec/tulip/ ++ ++TUN/TAP driver ++M: Maxim Krasnyansky <maxk@qti.qualcomm.com> ++S: Maintained ++W: http://vtun.sourceforge.net/tun ++F: Documentation/networking/tuntap.rst ++F: arch/um/os-Linux/drivers/ ++ ++TURBOCHANNEL SUBSYSTEM ++M: "Maciej W. Rozycki" <macro@orcam.me.uk> ++M: Ralf Baechle <ralf@linux-mips.org> ++L: linux-mips@vger.kernel.org ++S: Maintained ++Q: http://patchwork.linux-mips.org/project/linux-mips/list/ ++F: drivers/tc/ ++F: include/linux/tc.h ++ ++TURBOSTAT UTILITY ++M: "Len Brown" <lenb@kernel.org> ++L: linux-pm@vger.kernel.org ++S: Supported ++Q: https://patchwork.kernel.org/project/linux-pm/list/ ++B: https://bugzilla.kernel.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git turbostat ++F: tools/power/x86/turbostat/ ++ ++TW5864 VIDEO4LINUX DRIVER ++M: Bluecherry Maintainers <maintainers@bluecherrydvr.com> ++M: Anton Sviridenko <anton@corp.bluecherry.net> ++M: Andrey Utkin <andrey.utkin@corp.bluecherry.net> ++M: Andrey Utkin <andrey_utkin@fastmail.com> ++L: linux-media@vger.kernel.org ++S: Supported ++F: drivers/media/pci/tw5864/ ++ ++TW68 VIDEO4LINUX DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Odd Fixes ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/pci/tw68/ ++ ++TW686X VIDEO4LINUX DRIVER ++M: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: http://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/pci/tw686x/ ++ ++UACCE ACCELERATOR FRAMEWORK ++M: Zhangfei Gao <zhangfei.gao@linaro.org> ++M: Zhou Wang <wangzhou1@hisilicon.com> ++L: linux-accelerators@lists.ozlabs.org ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-driver-uacce ++F: Documentation/misc-devices/uacce.rst ++F: drivers/misc/uacce/ ++F: include/linux/uacce.h ++F: include/uapi/misc/uacce/ ++ ++UBI FILE SYSTEM (UBIFS) ++M: Richard Weinberger <richard@nod.at> ++L: linux-mtd@lists.infradead.org ++S: Supported ++W: http://www.linux-mtd.infradead.org/doc/ubifs.html ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs.git next ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs.git fixes ++F: Documentation/filesystems/ubifs-authentication.rst ++F: Documentation/filesystems/ubifs.rst ++F: fs/ubifs/ ++ ++UCLINUX (M68KNOMMU AND COLDFIRE) ++M: Greg Ungerer <gerg@linux-m68k.org> ++L: linux-m68k@lists.linux-m68k.org ++L: uclinux-dev@uclinux.org (subscribers-only) ++S: Maintained ++W: http://www.linux-m68k.org/ ++W: http://www.uclinux.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git ++F: arch/m68k/*/*_no.* ++F: arch/m68k/68*/ ++F: arch/m68k/coldfire/ ++F: arch/m68k/include/asm/*_no.* ++ ++UDF FILESYSTEM ++M: Jan Kara <jack@suse.com> ++S: Maintained ++F: Documentation/filesystems/udf.rst ++F: fs/udf/ ++ ++UDRAW TABLET ++M: Bastien Nocera <hadess@hadess.net> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/hid/hid-udraw-ps3.c ++ ++UFS FILESYSTEM ++M: Evgeniy Dushistov <dushistov@mail.ru> ++S: Maintained ++F: Documentation/admin-guide/ufs.rst ++F: fs/ufs/ ++ ++UHID USERSPACE HID IO DRIVER ++M: David Rheinsberg <david.rheinsberg@gmail.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/hid/uhid.c ++F: include/uapi/linux/uhid.h ++ ++ULPI BUS ++M: Heikki Krogerus <heikki.krogerus@linux.intel.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/common/ulpi.c ++F: include/linux/ulpi/ ++ ++UNICODE SUBSYSTEM ++M: Gabriel Krisman Bertazi <krisman@collabora.com> ++L: linux-fsdevel@vger.kernel.org ++S: Supported ++F: fs/unicode/ ++ ++UNIFDEF ++M: Tony Finch <dot@dotat.at> ++S: Maintained ++W: http://dotat.at/prog/unifdef ++F: scripts/unifdef.c ++ ++UNIFORM CDROM DRIVER ++M: Phillip Potter <phil@philpotter.co.uk> ++S: Maintained ++F: Documentation/cdrom/ ++F: drivers/cdrom/cdrom.c ++F: include/linux/cdrom.h ++F: include/uapi/linux/cdrom.h ++ ++UNISYS S-PAR DRIVERS ++M: David Kershner <david.kershner@unisys.com> ++L: sparmaintainer@unisys.com (Unisys internal) ++S: Supported ++F: drivers/staging/unisys/ ++F: drivers/visorbus/ ++F: include/linux/visorbus.h ++ ++UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER ++R: Alim Akhtar <alim.akhtar@samsung.com> ++R: Avri Altman <avri.altman@wdc.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: Documentation/scsi/ufs.rst ++F: drivers/scsi/ufs/ ++ ++UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER DWC HOOKS ++M: Pedro Sousa <pedrom.sousa@synopsys.com> ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/ufs/*dwc* ++ ++UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER MEDIATEK HOOKS ++M: Stanley Chu <stanley.chu@mediatek.com> ++L: linux-scsi@vger.kernel.org ++L: linux-mediatek@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/scsi/ufs/ufs-mediatek* ++ ++UNSORTED BLOCK IMAGES (UBI) ++M: Richard Weinberger <richard@nod.at> ++L: linux-mtd@lists.infradead.org ++S: Supported ++W: http://www.linux-mtd.infradead.org/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs.git next ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs.git fixes ++F: drivers/mtd/ubi/ ++F: include/linux/mtd/ubi.h ++F: include/uapi/mtd/ubi-user.h ++ ++USB "USBNET" DRIVER FRAMEWORK ++M: Oliver Neukum <oneukum@suse.com> ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://www.linux-usb.org/usbnet ++F: drivers/net/usb/usbnet.c ++F: include/linux/usb/usbnet.h ++ ++USB ACM DRIVER ++M: Oliver Neukum <oneukum@suse.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/usb/acm.rst ++F: drivers/usb/class/cdc-acm.* ++ ++USB APPLE MFI FASTCHARGE DRIVER ++M: Bastien Nocera <hadess@hadess.net> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/misc/apple-mfi-fastcharge.c ++ ++USB AR5523 WIRELESS DRIVER ++M: Pontus Fuchs <pontus.fuchs@gmail.com> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/net/wireless/ath/ar5523/ ++ ++USB ATTACHED SCSI ++M: Oliver Neukum <oneukum@suse.com> ++L: linux-usb@vger.kernel.org ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: drivers/usb/storage/uas.c ++ ++USB CDC ETHERNET DRIVER ++M: Oliver Neukum <oliver@neukum.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/net/usb/cdc_*.c ++F: include/uapi/linux/usb/cdc.h ++ ++USB CHAOSKEY DRIVER ++M: Keith Packard <keithp@keithp.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/misc/chaoskey.c ++ ++USB CYPRESS C67X00 DRIVER ++L: linux-usb@vger.kernel.org ++S: Orphan ++F: drivers/usb/c67x00/ ++ ++USB DAVICOM DM9601 DRIVER ++M: Peter Korsgaard <peter@korsgaard.com> ++L: netdev@vger.kernel.org ++S: Maintained ++W: http://www.linux-usb.org/usbnet ++F: drivers/net/usb/dm9601.c ++ ++USB EHCI DRIVER ++M: Alan Stern <stern@rowland.harvard.edu> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/usb/ehci.rst ++F: drivers/usb/host/ehci* ++ ++USB GADGET/PERIPHERAL SUBSYSTEM ++M: Felipe Balbi <balbi@kernel.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++W: http://www.linux-usb.org/gadget ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git ++F: drivers/usb/gadget/ ++F: include/linux/usb/gadget* ++ ++USB HID/HIDBP DRIVERS (USB KEYBOARDS, MICE, REMOTE CONTROLS, ...) ++M: Jiri Kosina <jikos@kernel.org> ++M: Benjamin Tissoires <benjamin.tissoires@redhat.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git ++F: Documentation/hid/hiddev.rst ++F: drivers/hid/usbhid/ ++ ++USB INTEL XHCI ROLE MUX DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/roles/intel-xhci-usb-role-switch.c ++ ++USB IP DRIVER FOR HISILICON KIRIN 960 ++M: Yu Chen <chenyu56@huawei.com> ++M: Binghui Wang <wangbinghui@hisilicon.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/phy/hisilicon,hi3660-usb3.yaml ++F: drivers/phy/hisilicon/phy-hi3660-usb3.c ++ ++USB IP DRIVER FOR HISILICON KIRIN 970 ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/phy/hisilicon,hi3670-usb3.yaml ++F: drivers/phy/hisilicon/phy-hi3670-usb3.c ++ ++USB ISP116X DRIVER ++M: Olav Kongas <ok@artecdesign.ee> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/host/isp116x* ++F: include/linux/usb/isp116x.h ++ ++USB ISP1760 DRIVER ++M: Rui Miguel Silva <rui.silva@linaro.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/isp1760/* ++F: Documentation/devicetree/bindings/usb/nxp,isp1760.yaml ++ ++USB LAN78XX ETHERNET DRIVER ++M: Woojung Huh <woojung.huh@microchip.com> ++M: UNGLinuxDriver@microchip.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/microchip,lan78xx.txt ++F: drivers/net/usb/lan78xx.* ++F: include/dt-bindings/net/microchip-lan78xx.h ++ ++USB MASS STORAGE DRIVER ++M: Alan Stern <stern@rowland.harvard.edu> ++L: linux-usb@vger.kernel.org ++L: usb-storage@lists.one-eyed-alien.net ++S: Maintained ++F: drivers/usb/storage/ ++ ++USB MIDI DRIVER ++M: Clemens Ladisch <clemens@ladisch.de> ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git ++F: sound/usb/midi.* ++ ++USB NETWORKING DRIVERS ++L: linux-usb@vger.kernel.org ++S: Odd Fixes ++F: drivers/net/usb/ ++ ++USB OHCI DRIVER ++M: Alan Stern <stern@rowland.harvard.edu> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/usb/ohci.rst ++F: drivers/usb/host/ohci* ++ ++USB OTG FSM (Finite State Machine) ++M: Peter Chen <peter.chen@kernel.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git ++F: drivers/usb/common/usb-otg-fsm.c ++ ++USB OVER IP DRIVER ++M: Valentina Manea <valentina.manea.m@gmail.com> ++M: Shuah Khan <shuah@kernel.org> ++M: Shuah Khan <skhan@linuxfoundation.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/usb/usbip_protocol.rst ++F: drivers/usb/usbip/ ++F: tools/testing/selftests/drivers/usb/usbip/ ++F: tools/usb/usbip/ ++ ++USB PEGASUS DRIVER ++M: Petko Manolov <petkan@nucleusys.com> ++L: linux-usb@vger.kernel.org ++L: netdev@vger.kernel.org ++S: Maintained ++W: https://github.com/petkan/pegasus ++T: git git://github.com/petkan/pegasus.git ++F: drivers/net/usb/pegasus.* ++ ++USB PHY LAYER ++M: Felipe Balbi <balbi@kernel.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git ++F: drivers/usb/phy/ ++ ++USB PRINTER DRIVER (usblp) ++M: Pete Zaitcev <zaitcev@redhat.com> ++L: linux-usb@vger.kernel.org ++S: Supported ++F: drivers/usb/class/usblp.c ++ ++USB RAW GADGET DRIVER ++R: Andrey Konovalov <andreyknvl@gmail.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/usb/raw-gadget.rst ++F: drivers/usb/gadget/legacy/raw_gadget.c ++F: include/uapi/linux/usb/raw_gadget.h ++ ++USB QMI WWAN NETWORK DRIVER ++M: Bjørn Mork <bjorn@mork.no> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-class-net-qmi ++F: drivers/net/usb/qmi_wwan.c ++ ++USB RTL8150 DRIVER ++M: Petko Manolov <petkan@nucleusys.com> ++L: linux-usb@vger.kernel.org ++L: netdev@vger.kernel.org ++S: Maintained ++W: https://github.com/petkan/rtl8150 ++T: git git://github.com/petkan/rtl8150.git ++F: drivers/net/usb/rtl8150.c ++ ++USB SERIAL SUBSYSTEM ++M: Johan Hovold <johan@kernel.org> ++L: linux-usb@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git ++F: Documentation/usb/usb-serial.rst ++F: drivers/usb/serial/ ++F: include/linux/usb/serial.h ++ ++USB SMSC75XX ETHERNET DRIVER ++M: Steve Glendinning <steve.glendinning@shawell.net> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/usb/smsc75xx.* ++ ++USB SMSC95XX ETHERNET DRIVER ++M: Steve Glendinning <steve.glendinning@shawell.net> ++M: UNGLinuxDriver@microchip.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/usb/smsc95xx.* ++ ++USB SUBSYSTEM ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++L: linux-usb@vger.kernel.org ++S: Supported ++W: http://www.linux-usb.org ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git ++F: Documentation/devicetree/bindings/usb/ ++F: Documentation/usb/ ++F: drivers/usb/ ++F: include/linux/usb.h ++F: include/linux/usb/ ++ ++USB TYPEC BUS FOR ALTERNATE MODES ++M: Heikki Krogerus <heikki.krogerus@linux.intel.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-bus-typec ++F: Documentation/driver-api/usb/typec_bus.rst ++F: drivers/usb/typec/altmodes/ ++F: include/linux/usb/typec_altmode.h ++ ++USB TYPEC CLASS ++M: Heikki Krogerus <heikki.krogerus@linux.intel.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/ABI/testing/sysfs-class-typec ++F: Documentation/driver-api/usb/typec.rst ++F: drivers/usb/typec/ ++F: include/linux/usb/typec.h ++ ++USB TYPEC INTEL PMC MUX DRIVER ++M: Heikki Krogerus <heikki.krogerus@linux.intel.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: Documentation/firmware-guide/acpi/intel-pmc-mux.rst ++F: drivers/usb/typec/mux/intel_pmc_mux.c ++ ++USB TYPEC PI3USB30532 MUX DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/typec/mux/pi3usb30532.c ++ ++USB TYPEC PORT CONTROLLER DRIVERS ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/typec/tcpm/ ++ ++USB UHCI DRIVER ++M: Alan Stern <stern@rowland.harvard.edu> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/host/uhci* ++ ++USB VIDEO CLASS ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-uvc-devel@lists.sourceforge.net (subscribers-only) ++L: linux-media@vger.kernel.org ++S: Maintained ++W: http://www.ideasonboard.org/uvc/ ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/usb/uvc/ ++F: include/uapi/linux/uvcvideo.h ++ ++USB WEBCAM GADGET ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-usb@vger.kernel.org ++S: Maintained ++F: drivers/usb/gadget/function/*uvc* ++F: drivers/usb/gadget/legacy/webcam.c ++F: include/uapi/linux/usb/g_uvc.h ++ ++USB WIRELESS RNDIS DRIVER (rndis_wlan) ++M: Jussi Kivilinna <jussi.kivilinna@iki.fi> ++L: linux-wireless@vger.kernel.org ++S: Maintained ++F: drivers/net/wireless/rndis_wlan.c ++ ++USB XHCI DRIVER ++M: Mathias Nyman <mathias.nyman@intel.com> ++L: linux-usb@vger.kernel.org ++S: Supported ++F: drivers/usb/host/pci-quirks* ++F: drivers/usb/host/xhci* ++ ++USB ZD1201 DRIVER ++L: linux-wireless@vger.kernel.org ++S: Orphan ++W: http://linux-lc100020.sourceforge.net ++F: drivers/net/wireless/zydas/zd1201.* ++ ++USB ZR364XX DRIVER ++M: Antoine Jacquet <royale@zerezo.com> ++L: linux-usb@vger.kernel.org ++L: linux-media@vger.kernel.org ++S: Maintained ++W: http://royale.zerezo.com/zr364xx/ ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/admin-guide/media/zr364xx* ++F: drivers/media/usb/zr364xx/ ++ ++USER-MODE LINUX (UML) ++M: Jeff Dike <jdike@addtoit.com> ++M: Richard Weinberger <richard@nod.at> ++M: Anton Ivanov <anton.ivanov@cambridgegreys.com> ++L: linux-um@lists.infradead.org ++S: Maintained ++W: http://user-mode-linux.sourceforge.net ++Q: https://patchwork.ozlabs.org/project/linux-um/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git ++F: Documentation/virt/uml/ ++F: arch/um/ ++F: arch/x86/um/ ++F: fs/hostfs/ ++ ++USERSPACE COPYIN/COPYOUT (UIOVEC) ++M: Alexander Viro <viro@zeniv.linux.org.uk> ++S: Maintained ++F: include/linux/uio.h ++F: lib/iov_iter.c ++ ++USERSPACE DMA BUFFER DRIVER ++M: Gerd Hoffmann <kraxel@redhat.com> ++L: dri-devel@lists.freedesktop.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/dma-buf/udmabuf.c ++F: include/uapi/linux/udmabuf.h ++ ++USERSPACE I/O (UIO) ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git ++F: Documentation/driver-api/uio-howto.rst ++F: drivers/uio/ ++F: include/linux/uio_driver.h ++ ++UTIL-LINUX PACKAGE ++M: Karel Zak <kzak@redhat.com> ++L: util-linux@vger.kernel.org ++S: Maintained ++W: http://en.wikipedia.org/wiki/Util-linux ++T: git git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git ++ ++UUID HELPERS ++M: Christoph Hellwig <hch@lst.de> ++R: Andy Shevchenko <andriy.shevchenko@linux.intel.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.infradead.org/users/hch/uuid.git ++F: include/linux/uuid.h ++F: include/uapi/linux/uuid.h ++F: lib/test_uuid.c ++F: lib/uuid.c ++ ++UV SYSFS DRIVER ++M: Justin Ernst <justin.ernst@hpe.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++F: drivers/platform/x86/uv_sysfs.c ++ ++UVESAFB DRIVER ++M: Michal Januszewski <spock@gentoo.org> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++W: https://github.com/mjanusz/v86d ++F: Documentation/fb/uvesafb.rst ++F: drivers/video/fbdev/uvesafb.* ++ ++Ux500 CLOCK DRIVERS ++M: Ulf Hansson <ulf.hansson@linaro.org> ++L: linux-clk@vger.kernel.org ++L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) ++S: Maintained ++F: drivers/clk/ux500/ ++ ++VF610 NAND DRIVER ++M: Stefan Agner <stefan@agner.ch> ++L: linux-mtd@lists.infradead.org ++S: Supported ++F: drivers/mtd/nand/raw/vf610_nfc.c ++ ++VFAT/FAT/MSDOS FILESYSTEM ++M: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> ++S: Maintained ++F: Documentation/filesystems/vfat.rst ++F: fs/fat/ ++ ++VFIO DRIVER ++M: Alex Williamson <alex.williamson@redhat.com> ++R: Cornelia Huck <cohuck@redhat.com> ++L: kvm@vger.kernel.org ++S: Maintained ++T: git git://github.com/awilliam/linux-vfio.git ++F: Documentation/driver-api/vfio.rst ++F: drivers/vfio/ ++F: include/linux/vfio.h ++F: include/linux/vfio_pci_core.h ++F: include/uapi/linux/vfio.h ++ ++VFIO FSL-MC DRIVER ++M: Diana Craciun <diana.craciun@oss.nxp.com> ++L: kvm@vger.kernel.org ++S: Maintained ++F: drivers/vfio/fsl-mc/ ++ ++VFIO MEDIATED DEVICE DRIVERS ++M: Kirti Wankhede <kwankhede@nvidia.com> ++L: kvm@vger.kernel.org ++S: Maintained ++F: Documentation/driver-api/vfio-mediated-device.rst ++F: drivers/vfio/mdev/ ++F: include/linux/mdev.h ++F: samples/vfio-mdev/ ++ ++VFIO PLATFORM DRIVER ++M: Eric Auger <eric.auger@redhat.com> ++L: kvm@vger.kernel.org ++S: Maintained ++F: drivers/vfio/platform/ ++ ++VGA_SWITCHEROO ++R: Lukas Wunner <lukas@wunner.de> ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: Documentation/gpu/vga-switcheroo.rst ++F: drivers/gpu/vga/vga_switcheroo.c ++F: include/linux/vga_switcheroo.h ++ ++VIA RHINE NETWORK DRIVER ++S: Maintained ++M: Kevin Brace <kevinbrace@bracecomputerlab.com> ++F: drivers/net/ethernet/via/via-rhine.c ++ ++VIA SD/MMC CARD CONTROLLER DRIVER ++M: Bruce Chang <brucechang@via.com.tw> ++M: Harald Welte <HaraldWelte@viatech.com> ++S: Maintained ++F: drivers/mmc/host/via-sdmmc.c ++ ++VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER ++M: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> ++L: linux-fbdev@vger.kernel.org ++S: Maintained ++F: drivers/video/fbdev/via/ ++F: include/linux/via-core.h ++F: include/linux/via-gpio.h ++F: include/linux/via_i2c.h ++ ++VIA VELOCITY NETWORK DRIVER ++M: Francois Romieu <romieu@fr.zoreil.com> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/ethernet/via/via-velocity.* ++ ++VICODEC VIRTUAL CODEC DRIVER ++M: Hans Verkuil <hverkuil-cisco@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/test-drivers/vicodec/* ++ ++VIDEO I2C POLLING DRIVER ++M: Matt Ranostay <matt.ranostay@konsulko.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/i2c/video-i2c.c ++ ++VIDEO MULTIPLEXER DRIVER ++M: Philipp Zabel <p.zabel@pengutronix.de> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/platform/video-mux.c ++ ++VIDEOBUF2 FRAMEWORK ++M: Tomasz Figa <tfiga@chromium.org> ++M: Marek Szyprowski <m.szyprowski@samsung.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++F: drivers/media/common/videobuf2/* ++F: include/media/videobuf2-* ++ ++VIMC VIRTUAL MEDIA CONTROLLER DRIVER ++M: Helen Koike <helen.koike@collabora.com> ++R: Shuah Khan <skhan@linuxfoundation.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/test-drivers/vimc/* ++ ++VIRT LIB ++M: Alex Williamson <alex.williamson@redhat.com> ++M: Paolo Bonzini <pbonzini@redhat.com> ++L: kvm@vger.kernel.org ++S: Supported ++F: virt/lib/ ++ ++VIRTIO AND VHOST VSOCK DRIVER ++M: Stefan Hajnoczi <stefanha@redhat.com> ++M: Stefano Garzarella <sgarzare@redhat.com> ++L: kvm@vger.kernel.org ++L: virtualization@lists.linux-foundation.org ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/vhost/vsock.c ++F: include/linux/virtio_vsock.h ++F: include/uapi/linux/virtio_vsock.h ++F: net/vmw_vsock/virtio_transport.c ++F: net/vmw_vsock/virtio_transport_common.c ++ ++VIRTIO BLOCK AND SCSI DRIVERS ++M: "Michael S. Tsirkin" <mst@redhat.com> ++M: Jason Wang <jasowang@redhat.com> ++R: Paolo Bonzini <pbonzini@redhat.com> ++R: Stefan Hajnoczi <stefanha@redhat.com> ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++F: drivers/block/virtio_blk.c ++F: drivers/scsi/virtio_scsi.c ++F: drivers/vhost/scsi.c ++F: include/uapi/linux/virtio_blk.h ++F: include/uapi/linux/virtio_scsi.h ++ ++VIRTIO CONSOLE DRIVER ++M: Amit Shah <amit@kernel.org> ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++F: drivers/char/virtio_console.c ++F: include/linux/virtio_console.h ++F: include/uapi/linux/virtio_console.h ++ ++VIRTIO CORE AND NET DRIVERS ++M: "Michael S. Tsirkin" <mst@redhat.com> ++M: Jason Wang <jasowang@redhat.com> ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++F: Documentation/devicetree/bindings/virtio/ ++F: drivers/block/virtio_blk.c ++F: drivers/crypto/virtio/ ++F: drivers/net/virtio_net.c ++F: drivers/vdpa/ ++F: drivers/virtio/ ++F: include/linux/vdpa.h ++F: include/linux/virtio*.h ++F: include/uapi/linux/virtio_*.h ++F: tools/virtio/ ++ ++VIRTIO BALLOON ++M: "Michael S. Tsirkin" <mst@redhat.com> ++M: David Hildenbrand <david@redhat.com> ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++F: drivers/virtio/virtio_balloon.c ++F: include/uapi/linux/virtio_balloon.h ++F: include/linux/balloon_compaction.h ++F: mm/balloon_compaction.c ++ ++VIRTIO CRYPTO DRIVER ++M: Gonglei <arei.gonglei@huawei.com> ++L: virtualization@lists.linux-foundation.org ++L: linux-crypto@vger.kernel.org ++S: Maintained ++F: drivers/crypto/virtio/ ++F: include/uapi/linux/virtio_crypto.h ++ ++VIRTIO DRIVERS FOR S390 ++M: Cornelia Huck <cohuck@redhat.com> ++M: Halil Pasic <pasic@linux.ibm.com> ++L: linux-s390@vger.kernel.org ++L: virtualization@lists.linux-foundation.org ++L: kvm@vger.kernel.org ++S: Supported ++F: arch/s390/include/uapi/asm/virtio-ccw.h ++F: drivers/s390/virtio/ ++ ++VIRTIO FILE SYSTEM ++M: Vivek Goyal <vgoyal@redhat.com> ++M: Stefan Hajnoczi <stefanha@redhat.com> ++M: Miklos Szeredi <miklos@szeredi.hu> ++L: virtualization@lists.linux-foundation.org ++L: linux-fsdevel@vger.kernel.org ++S: Supported ++W: https://virtio-fs.gitlab.io/ ++F: Documentation/filesystems/virtiofs.rst ++F: fs/fuse/virtio_fs.c ++F: include/uapi/linux/virtio_fs.h ++ ++VIRTIO GPIO DRIVER ++M: Enrico Weigelt, metux IT consult <info@metux.net> ++M: Viresh Kumar <vireshk@kernel.org> ++L: linux-gpio@vger.kernel.org ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++F: drivers/gpio/gpio-virtio.c ++F: include/uapi/linux/virtio_gpio.h ++ ++VIRTIO GPU DRIVER ++M: David Airlie <airlied@linux.ie> ++M: Gerd Hoffmann <kraxel@redhat.com> ++L: dri-devel@lists.freedesktop.org ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++T: git git://anongit.freedesktop.org/drm/drm-misc ++F: drivers/gpu/drm/virtio/ ++F: include/uapi/linux/virtio_gpu.h ++ ++VIRTIO HOST (VHOST) ++M: "Michael S. Tsirkin" <mst@redhat.com> ++M: Jason Wang <jasowang@redhat.com> ++L: kvm@vger.kernel.org ++L: virtualization@lists.linux-foundation.org ++L: netdev@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git ++F: drivers/vhost/ ++F: include/linux/vhost_iotlb.h ++F: include/uapi/linux/vhost.h ++ ++VIRTIO INPUT DRIVER ++M: Gerd Hoffmann <kraxel@redhat.com> ++S: Maintained ++F: drivers/virtio/virtio_input.c ++F: include/uapi/linux/virtio_input.h ++ ++VIRTIO IOMMU DRIVER ++M: Jean-Philippe Brucker <jean-philippe@linaro.org> ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++F: drivers/iommu/virtio-iommu.c ++F: include/uapi/linux/virtio_iommu.h ++ ++VIRTIO MEM DRIVER ++M: David Hildenbrand <david@redhat.com> ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++W: https://virtio-mem.gitlab.io/ ++F: drivers/virtio/virtio_mem.c ++F: include/uapi/linux/virtio_mem.h ++ ++VIRTIO SOUND DRIVER ++M: Anton Yakovlev <anton.yakovlev@opensynergy.com> ++M: "Michael S. Tsirkin" <mst@redhat.com> ++L: virtualization@lists.linux-foundation.org ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Maintained ++F: include/uapi/linux/virtio_snd.h ++F: sound/virtio/* ++ ++VIRTIO I2C DRIVER ++M: Jie Deng <jie.deng@intel.com> ++M: Viresh Kumar <viresh.kumar@linaro.org> ++L: linux-i2c@vger.kernel.org ++L: virtualization@lists.linux-foundation.org ++S: Maintained ++F: drivers/i2c/busses/i2c-virtio.c ++F: include/uapi/linux/virtio_i2c.h ++ ++VIRTUAL BOX GUEST DEVICE DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++M: Arnd Bergmann <arnd@arndb.de> ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++S: Maintained ++F: drivers/virt/vboxguest/ ++F: include/linux/vbox_utils.h ++F: include/uapi/linux/vbox*.h ++ ++VIRTUAL BOX SHARED FOLDER VFS DRIVER ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++F: fs/vboxsf/* ++ ++VIRTUAL SERIO DEVICE DRIVER ++M: Stephen Chandler Paul <thatslyude@gmail.com> ++S: Maintained ++F: drivers/input/serio/userio.c ++F: include/uapi/linux/userio.h ++ ++VIVID VIRTUAL VIDEO DRIVER ++M: Hans Verkuil <hverkuil@xs4all.nl> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/test-drivers/vivid/* ++ ++VIDTV VIRTUAL DIGITAL TV DRIVER ++M: Daniel W. S. Almeida <dwlsalmeida@gmail.com> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/test-drivers/vidtv/* ++ ++VLYNQ BUS ++M: Florian Fainelli <f.fainelli@gmail.com> ++L: openwrt-devel@lists.openwrt.org (subscribers-only) ++S: Maintained ++F: drivers/vlynq/vlynq.c ++F: include/linux/vlynq.h ++ ++VME SUBSYSTEM ++M: Martyn Welch <martyn@welchs.me.uk> ++M: Manohar Vanga <manohar.vanga@gmail.com> ++M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git ++F: Documentation/driver-api/vme.rst ++F: drivers/staging/vme/ ++F: drivers/vme/ ++F: include/linux/vme* ++ ++VM SOCKETS (AF_VSOCK) ++M: Stefano Garzarella <sgarzare@redhat.com> ++L: virtualization@lists.linux-foundation.org ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/vsockmon.c ++F: include/net/af_vsock.h ++F: include/uapi/linux/vm_sockets.h ++F: include/uapi/linux/vm_sockets_diag.h ++F: include/uapi/linux/vsockmon.h ++F: net/vmw_vsock/ ++F: tools/testing/vsock/ ++ ++VMWARE BALLOON DRIVER ++M: Nadav Amit <namit@vmware.com> ++M: "VMware, Inc." <pv-drivers@vmware.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: drivers/misc/vmw_balloon.c ++ ++VMWARE HYPERVISOR INTERFACE ++M: Deep Shah <sdeep@vmware.com> ++M: "VMware, Inc." <pv-drivers@vmware.com> ++L: virtualization@lists.linux-foundation.org ++S: Supported ++F: arch/x86/include/asm/vmware.h ++F: arch/x86/kernel/cpu/vmware.c ++ ++VMWARE PVRDMA DRIVER ++M: Adit Ranadive <aditr@vmware.com> ++M: VMware PV-Drivers <pv-drivers@vmware.com> ++L: linux-rdma@vger.kernel.org ++S: Maintained ++F: drivers/infiniband/hw/vmw_pvrdma/ ++ ++VMware PVSCSI driver ++M: Vishal Bhakta <vbhakta@vmware.com> ++M: VMware PV-Drivers <pv-drivers@vmware.com> ++L: linux-scsi@vger.kernel.org ++S: Maintained ++F: drivers/scsi/vmw_pvscsi.c ++F: drivers/scsi/vmw_pvscsi.h ++ ++VMWARE VIRTUAL PTP CLOCK DRIVER ++M: Vivek Thampi <vithampi@vmware.com> ++M: "VMware, Inc." <pv-drivers@vmware.com> ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/ptp/ptp_vmw.c ++ ++VMWARE VMCI DRIVER ++M: Jorgen Hansen <jhansen@vmware.com> ++M: Vishnu Dasa <vdasa@vmware.com> ++L: linux-kernel@vger.kernel.org ++L: pv-drivers@vmware.com (private) ++S: Maintained ++F: drivers/misc/vmw_vmci/ ++ ++VMWARE VMMOUSE SUBDRIVER ++M: "VMware Graphics" <linux-graphics-maintainer@vmware.com> ++M: "VMware, Inc." <pv-drivers@vmware.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/input/mouse/vmmouse.c ++F: drivers/input/mouse/vmmouse.h ++ ++VMWARE VMXNET3 ETHERNET DRIVER ++M: Ronak Doshi <doshir@vmware.com> ++M: pv-drivers@vmware.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/vmxnet3/ ++ ++VOCORE VOCORE2 BOARD ++M: Harvey Hunt <harveyhuntnexus@gmail.com> ++L: linux-mips@vger.kernel.org ++S: Maintained ++F: arch/mips/boot/dts/ralink/vocore2.dts ++ ++VOLTAGE AND CURRENT REGULATOR FRAMEWORK ++M: Liam Girdwood <lgirdwood@gmail.com> ++M: Mark Brown <broonie@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Supported ++W: http://www.slimlogic.co.uk/?p=48 ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git ++F: Documentation/devicetree/bindings/regulator/ ++F: Documentation/power/regulator/ ++F: drivers/regulator/ ++F: include/dt-bindings/regulator/ ++F: include/linux/regulator/ ++K: regulator_get_optional ++ ++VOLTAGE AND CURRENT REGULATOR IRQ HELPERS ++R: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> ++F: drivers/regulator/irq_helpers.c ++ ++VRF ++M: David Ahern <dsahern@kernel.org> ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/networking/vrf.rst ++F: drivers/net/vrf.c ++ ++VSPRINTF ++M: Petr Mladek <pmladek@suse.com> ++M: Steven Rostedt <rostedt@goodmis.org> ++M: Sergey Senozhatsky <senozhatsky@chromium.org> ++R: Andy Shevchenko <andriy.shevchenko@linux.intel.com> ++R: Rasmus Villemoes <linux@rasmusvillemoes.dk> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk.git ++F: Documentation/core-api/printk-formats.rst ++F: lib/test_printf.c ++F: lib/test_scanf.c ++F: lib/vsprintf.c ++ ++VT1211 HARDWARE MONITOR DRIVER ++M: Juerg Haefliger <juergh@gmail.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/vt1211.rst ++F: drivers/hwmon/vt1211.c ++ ++VT8231 HARDWARE MONITOR DRIVER ++M: Roger Lucas <vt8231@hiddenengine.co.uk> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: drivers/hwmon/vt8231.c ++ ++VUB300 USB to SDIO/SD/MMC bridge chip ++L: linux-mmc@vger.kernel.org ++S: Orphan ++F: drivers/mmc/host/vub300.c ++ ++W1 DALLAS'S 1-WIRE BUS ++M: Evgeniy Polyakov <zbr@ioremap.net> ++S: Maintained ++F: Documentation/devicetree/bindings/w1/ ++F: Documentation/w1/ ++F: drivers/w1/ ++F: include/linux/w1.h ++ ++W83791D HARDWARE MONITORING DRIVER ++M: Marc Hulsman <m.hulsman@tudelft.nl> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/w83791d.rst ++F: drivers/hwmon/w83791d.c ++ ++W83793 HARDWARE MONITORING DRIVER ++M: Rudolf Marek <r.marek@assembler.cz> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: Documentation/hwmon/w83793.rst ++F: drivers/hwmon/w83793.c ++ ++W83795 HARDWARE MONITORING DRIVER ++M: Jean Delvare <jdelvare@suse.com> ++L: linux-hwmon@vger.kernel.org ++S: Maintained ++F: drivers/hwmon/w83795.c ++ ++W83L51xD SD/MMC CARD INTERFACE DRIVER ++M: Pierre Ossman <pierre@ossman.eu> ++S: Maintained ++F: drivers/mmc/host/wbsd.* ++ ++WACOM PROTOCOL 4 SERIAL TABLETS ++M: Julian Squires <julian@cipht.net> ++M: Hans de Goede <hdegoede@redhat.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/input/tablet/wacom_serial4.c ++ ++WATCHDOG DEVICE DRIVERS ++M: Wim Van Sebroeck <wim@linux-watchdog.org> ++M: Guenter Roeck <linux@roeck-us.net> ++L: linux-watchdog@vger.kernel.org ++S: Maintained ++W: http://www.linux-watchdog.org/ ++T: git git://www.linux-watchdog.org/linux-watchdog.git ++F: Documentation/devicetree/bindings/watchdog/ ++F: Documentation/watchdog/ ++F: drivers/watchdog/ ++F: include/linux/watchdog.h ++F: include/uapi/linux/watchdog.h ++ ++WHISKEYCOVE PMIC GPIO DRIVER ++M: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-wcove.c ++ ++WHWAVE RTC DRIVER ++M: Dianlong Li <long17.cool@163.com> ++L: linux-rtc@vger.kernel.org ++S: Maintained ++F: drivers/rtc/rtc-sd3078.c ++ ++WIIMOTE HID DRIVER ++M: David Rheinsberg <david.rheinsberg@gmail.com> ++L: linux-input@vger.kernel.org ++S: Maintained ++F: drivers/hid/hid-wiimote* ++ ++WILOCITY WIL6210 WIRELESS DRIVER ++M: Maya Erez <merez@codeaurora.org> ++L: linux-wireless@vger.kernel.org ++L: wil6210@qti.qualcomm.com ++S: Supported ++W: https://wireless.wiki.kernel.org/en/users/Drivers/wil6210 ++F: drivers/net/wireless/ath/wil6210/ ++ ++WINBOND CIR DRIVER ++M: David Härdeman <david@hardeman.nu> ++S: Maintained ++F: drivers/media/rc/winbond-cir.c ++ ++WINSYSTEMS EBC-C384 WATCHDOG DRIVER ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++L: linux-watchdog@vger.kernel.org ++S: Maintained ++F: drivers/watchdog/ebc-c384_wdt.c ++ ++WINSYSTEMS WS16C48 GPIO DRIVER ++M: William Breathitt Gray <vilhelm.gray@gmail.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: drivers/gpio/gpio-ws16c48.c ++ ++WIREGUARD SECURE NETWORK TUNNEL ++M: Jason A. Donenfeld <Jason@zx2c4.com> ++L: wireguard@lists.zx2c4.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/wireguard/ ++F: tools/testing/selftests/wireguard/ ++ ++WISTRON LAPTOP BUTTON DRIVER ++M: Miloslav Trmac <mitr@volny.cz> ++S: Maintained ++F: drivers/input/misc/wistron_btns.c ++ ++WL3501 WIRELESS PCMCIA CARD DRIVER ++L: linux-wireless@vger.kernel.org ++S: Odd fixes ++F: drivers/net/wireless/wl3501* ++ ++WOLFSON MICROELECTRONICS DRIVERS ++L: patches@opensource.cirrus.com ++S: Supported ++W: https://github.com/CirrusLogic/linux-drivers/wiki ++T: git https://github.com/CirrusLogic/linux-drivers.git ++F: Documentation/devicetree/bindings/extcon/wlf,arizona.yaml ++F: Documentation/devicetree/bindings/mfd/wlf,arizona.yaml ++F: Documentation/devicetree/bindings/mfd/wm831x.txt ++F: Documentation/devicetree/bindings/regulator/wlf,arizona.yaml ++F: Documentation/devicetree/bindings/sound/wlf,*.yaml ++F: Documentation/devicetree/bindings/sound/wm* ++F: Documentation/hwmon/wm83??.rst ++F: arch/arm/mach-s3c/mach-crag6410* ++F: drivers/clk/clk-wm83*.c ++F: drivers/gpio/gpio-*wm*.c ++F: drivers/gpio/gpio-arizona.c ++F: drivers/hwmon/wm83??-hwmon.c ++F: drivers/input/misc/wm831x-on.c ++F: drivers/input/touchscreen/wm831x-ts.c ++F: drivers/input/touchscreen/wm97*.c ++F: drivers/leds/leds-wm83*.c ++F: drivers/mfd/arizona* ++F: drivers/mfd/cs47l24* ++F: drivers/mfd/wm*.c ++F: drivers/power/supply/wm83*.c ++F: drivers/regulator/arizona* ++F: drivers/regulator/wm8*.c ++F: drivers/rtc/rtc-wm83*.c ++F: drivers/video/backlight/wm83*_bl.c ++F: drivers/watchdog/wm83*_wdt.c ++F: include/linux/mfd/arizona/ ++F: include/linux/mfd/wm831x/ ++F: include/linux/mfd/wm8350/ ++F: include/linux/mfd/wm8400* ++F: include/linux/regulator/arizona* ++F: include/linux/wm97xx.h ++F: include/sound/wm????.h ++F: sound/soc/codecs/arizona* ++F: sound/soc/codecs/cs47l24* ++F: sound/soc/codecs/wm* ++ ++WORKQUEUE ++M: Tejun Heo <tj@kernel.org> ++R: Lai Jiangshan <jiangshanlai@gmail.com> ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git ++F: Documentation/core-api/workqueue.rst ++F: include/linux/workqueue.h ++F: kernel/workqueue.c ++ ++WWAN DRIVERS ++M: Loic Poulain <loic.poulain@linaro.org> ++M: Sergey Ryazanov <ryazanov.s.a@gmail.com> ++R: Johannes Berg <johannes@sipsolutions.net> ++L: netdev@vger.kernel.org ++S: Maintained ++F: drivers/net/wwan/ ++F: include/linux/wwan.h ++F: include/uapi/linux/wwan.h ++ ++X-POWERS AXP288 PMIC DRIVERS ++M: Hans de Goede <hdegoede@redhat.com> ++S: Maintained ++F: drivers/acpi/pmic/intel_pmic_xpower.c ++N: axp288 ++ ++X-POWERS MULTIFUNCTION PMIC DEVICE DRIVERS ++M: Chen-Yu Tsai <wens@csie.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++N: axp[128] ++ ++X.25 STACK ++M: Martin Schiller <ms@dev.tdt.de> ++L: linux-x25@vger.kernel.org ++S: Maintained ++F: Documentation/networking/lapb-module.rst ++F: Documentation/networking/x25* ++F: drivers/net/wan/hdlc_x25.c ++F: drivers/net/wan/lapbether.c ++F: include/*/lapb.h ++F: include/net/x25* ++F: include/uapi/linux/x25.h ++F: net/lapb/ ++F: net/x25/ ++ ++X86 ARCHITECTURE (32-BIT AND 64-BIT) ++M: Thomas Gleixner <tglx@linutronix.de> ++M: Ingo Molnar <mingo@redhat.com> ++M: Borislav Petkov <bp@alien8.de> ++M: Dave Hansen <dave.hansen@linux.intel.com> ++M: x86@kernel.org ++R: "H. Peter Anvin" <hpa@zytor.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core ++F: Documentation/devicetree/bindings/x86/ ++F: Documentation/x86/ ++F: arch/x86/ ++ ++X86 ENTRY CODE ++M: Andy Lutomirski <luto@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/asm ++F: arch/x86/entry/ ++ ++X86 MCE INFRASTRUCTURE ++M: Tony Luck <tony.luck@intel.com> ++M: Borislav Petkov <bp@alien8.de> ++L: linux-edac@vger.kernel.org ++S: Maintained ++F: arch/x86/kernel/cpu/mce/* ++ ++X86 MICROCODE UPDATE SUPPORT ++M: Borislav Petkov <bp@alien8.de> ++S: Maintained ++F: arch/x86/kernel/cpu/microcode/* ++ ++X86 MM ++M: Dave Hansen <dave.hansen@linux.intel.com> ++M: Andy Lutomirski <luto@kernel.org> ++M: Peter Zijlstra <peterz@infradead.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/mm ++F: arch/x86/mm/ ++ ++X86 PLATFORM DRIVERS ++M: Hans de Goede <hdegoede@redhat.com> ++M: Mark Gross <mgross@linux.intel.com> ++L: platform-driver-x86@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git ++F: drivers/platform/olpc/ ++F: drivers/platform/x86/ ++ ++X86 PLATFORM DRIVERS - ARCH ++R: Darren Hart <dvhart@infradead.org> ++R: Andy Shevchenko <andy@infradead.org> ++L: platform-driver-x86@vger.kernel.org ++L: x86@kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core ++F: arch/x86/platform ++ ++X86 PLATFORM UV HPE SUPERDOME FLEX ++M: Steve Wahl <steve.wahl@hpe.com> ++R: Mike Travis <mike.travis@hpe.com> ++R: Dimitri Sivanich <dimitri.sivanich@hpe.com> ++R: Russ Anderson <russ.anderson@hpe.com> ++S: Supported ++F: arch/x86/include/asm/uv/ ++F: arch/x86/kernel/apic/x2apic_uv_x.c ++F: arch/x86/platform/uv/ ++ ++X86 VDSO ++M: Andy Lutomirski <luto@kernel.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/vdso ++F: arch/x86/entry/vdso/ ++ ++XARRAY ++M: Matthew Wilcox <willy@infradead.org> ++L: linux-fsdevel@vger.kernel.org ++S: Supported ++F: Documentation/core-api/xarray.rst ++F: include/linux/idr.h ++F: include/linux/xarray.h ++F: lib/idr.c ++F: lib/xarray.c ++F: tools/testing/radix-tree ++ ++XBOX DVD IR REMOTE ++M: Benjamin Valentin <benpicco@googlemail.com> ++S: Maintained ++F: drivers/media/rc/keymaps/rc-xbox-dvd.c ++F: drivers/media/rc/xbox_remote.c ++ ++XC2028/3028 TUNER DRIVER ++M: Mauro Carvalho Chehab <mchehab@kernel.org> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org ++T: git git://linuxtv.org/media_tree.git ++F: drivers/media/tuners/tuner-xc2028.* ++ ++XDP (eXpress Data Path) ++M: Alexei Starovoitov <ast@kernel.org> ++M: Daniel Borkmann <daniel@iogearbox.net> ++M: David S. Miller <davem@davemloft.net> ++M: Jakub Kicinski <kuba@kernel.org> ++M: Jesper Dangaard Brouer <hawk@kernel.org> ++M: John Fastabend <john.fastabend@gmail.com> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Supported ++F: include/net/xdp.h ++F: include/net/xdp_priv.h ++F: include/trace/events/xdp.h ++F: kernel/bpf/cpumap.c ++F: kernel/bpf/devmap.c ++F: net/core/xdp.c ++F: samples/bpf/xdp* ++F: tools/testing/selftests/bpf/*xdp* ++F: tools/testing/selftests/bpf/*/*xdp* ++F: drivers/net/ethernet/*/*/*/*/*xdp* ++F: drivers/net/ethernet/*/*/*xdp* ++K: (?:\b|_)xdp(?:\b|_) ++ ++XDP SOCKETS (AF_XDP) ++M: Björn Töpel <bjorn@kernel.org> ++M: Magnus Karlsson <magnus.karlsson@intel.com> ++R: Jonathan Lemon <jonathan.lemon@gmail.com> ++L: netdev@vger.kernel.org ++L: bpf@vger.kernel.org ++S: Maintained ++F: Documentation/networking/af_xdp.rst ++F: include/net/xdp_sock* ++F: include/net/xsk_buff_pool.h ++F: include/uapi/linux/if_xdp.h ++F: include/uapi/linux/xdp_diag.h ++F: include/net/netns/xdp.h ++F: net/xdp/ ++F: samples/bpf/xdpsock* ++F: tools/lib/bpf/xsk* ++ ++XEN BLOCK SUBSYSTEM ++M: Roger Pau Monné <roger.pau@citrix.com> ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++S: Supported ++F: drivers/block/xen* ++F: drivers/block/xen-blkback/* ++ ++XEN HYPERVISOR ARM ++M: Stefano Stabellini <sstabellini@kernel.org> ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm/include/asm/xen/ ++F: arch/arm/xen/ ++ ++XEN HYPERVISOR ARM64 ++M: Stefano Stabellini <sstabellini@kernel.org> ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++S: Maintained ++F: arch/arm64/include/asm/xen/ ++F: arch/arm64/xen/ ++ ++XEN HYPERVISOR INTERFACE ++M: Boris Ostrovsky <boris.ostrovsky@oracle.com> ++M: Juergen Gross <jgross@suse.com> ++R: Stefano Stabellini <sstabellini@kernel.org> ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git ++F: Documentation/ABI/stable/sysfs-hypervisor-xen ++F: Documentation/ABI/testing/sysfs-hypervisor-xen ++F: arch/x86/include/asm/pvclock-abi.h ++F: arch/x86/include/asm/xen/ ++F: arch/x86/platform/pvh/ ++F: arch/x86/xen/ ++F: drivers/*/xen-*front.c ++F: drivers/xen/ ++F: include/uapi/xen/ ++F: include/xen/ ++ ++XEN NETWORK BACKEND DRIVER ++M: Wei Liu <wei.liu@kernel.org> ++M: Paul Durrant <paul@xen.org> ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++L: netdev@vger.kernel.org ++S: Supported ++F: drivers/net/xen-netback/* ++ ++XEN PCI SUBSYSTEM ++M: Juergen Gross <jgross@suse.com> ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++S: Supported ++F: arch/x86/pci/*xen* ++F: drivers/pci/*xen* ++ ++XEN PVSCSI DRIVERS ++M: Juergen Gross <jgross@suse.com> ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++L: linux-scsi@vger.kernel.org ++S: Supported ++F: drivers/scsi/xen-scsifront.c ++F: drivers/xen/xen-scsiback.c ++F: include/xen/interface/io/vscsiif.h ++ ++XEN SOUND FRONTEND DRIVER ++M: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++L: alsa-devel@alsa-project.org (moderated for non-subscribers) ++S: Supported ++F: sound/xen/* ++ ++XEN SWIOTLB SUBSYSTEM ++M: Juergen Gross <jgross@suse.com> ++M: Stefano Stabellini <sstabellini@kernel.org> ++L: xen-devel@lists.xenproject.org (moderated for non-subscribers) ++L: iommu@lists.linux-foundation.org ++S: Supported ++F: arch/x86/xen/*swiotlb* ++F: drivers/xen/*swiotlb* ++ ++XFS FILESYSTEM ++C: irc://irc.oftc.net/xfs ++M: Darrick J. Wong <djwong@kernel.org> ++M: linux-xfs@vger.kernel.org ++L: linux-xfs@vger.kernel.org ++S: Supported ++W: http://xfs.org/ ++T: git git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git ++F: Documentation/ABI/testing/sysfs-fs-xfs ++F: Documentation/admin-guide/xfs.rst ++F: Documentation/filesystems/xfs-delayed-logging-design.rst ++F: Documentation/filesystems/xfs-self-describing-metadata.rst ++F: fs/xfs/ ++F: include/uapi/linux/dqblk_xfs.h ++F: include/uapi/linux/fsmap.h ++ ++XILINX AXI ETHERNET DRIVER ++M: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> ++S: Maintained ++F: drivers/net/ethernet/xilinx/xilinx_axienet* ++ ++XILINX CAN DRIVER ++M: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com> ++R: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com> ++L: linux-can@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/can/xilinx_can.txt ++F: drivers/net/can/xilinx_can.c ++ ++XILINX GPIO DRIVER ++M: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> ++R: Srinivas Neeli <srinivas.neeli@xilinx.com> ++R: Michal Simek <michal.simek@xilinx.com> ++S: Maintained ++F: Documentation/devicetree/bindings/gpio/gpio-xilinx.txt ++F: Documentation/devicetree/bindings/gpio/gpio-zynq.yaml ++F: drivers/gpio/gpio-xilinx.c ++F: drivers/gpio/gpio-zynq.c ++ ++XILINX SD-FEC IP CORES ++M: Derek Kiernan <derek.kiernan@xilinx.com> ++M: Dragan Cvetic <dragan.cvetic@xilinx.com> ++S: Maintained ++F: Documentation/devicetree/bindings/misc/xlnx,sd-fec.txt ++F: Documentation/misc-devices/xilinx_sdfec.rst ++F: drivers/misc/Kconfig ++F: drivers/misc/Makefile ++F: drivers/misc/xilinx_sdfec.c ++F: include/uapi/misc/xilinx_sdfec.h ++ ++XILINX UARTLITE SERIAL DRIVER ++M: Peter Korsgaard <jacmet@sunsite.dk> ++L: linux-serial@vger.kernel.org ++S: Maintained ++F: drivers/tty/serial/uartlite.c ++ ++XILINX VIDEO IP CORES ++M: Hyun Kwon <hyun.kwon@xilinx.com> ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-media@vger.kernel.org ++S: Supported ++T: git git://linuxtv.org/media_tree.git ++F: Documentation/devicetree/bindings/media/xilinx/ ++F: drivers/media/platform/xilinx/ ++F: include/uapi/linux/xilinx-v4l2-controls.h ++ ++XILINX ZYNQMP DPDMA DRIVER ++M: Hyun Kwon <hyun.kwon@xilinx.com> ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: dmaengine@vger.kernel.org ++S: Supported ++F: Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml ++F: drivers/dma/xilinx/xilinx_dpdma.c ++F: include/dt-bindings/dma/xlnx-zynqmp-dpdma.h ++ ++XILINX ZYNQMP PSGTR PHY DRIVER ++M: Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com> ++M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ++L: linux-kernel@vger.kernel.org ++S: Supported ++T: git https://github.com/Xilinx/linux-xlnx.git ++F: Documentation/devicetree/bindings/phy/xlnx,zynqmp-psgtr.yaml ++F: drivers/phy/xilinx/phy-zynqmp.c ++ ++XILLYBUS DRIVER ++M: Eli Billauer <eli.billauer@gmail.com> ++L: linux-kernel@vger.kernel.org ++S: Supported ++F: drivers/char/xillybus/ ++ ++XLP9XX I2C DRIVER ++M: George Cherian <gcherian@marvell.com> ++L: linux-i2c@vger.kernel.org ++S: Supported ++W: http://www.marvell.com ++F: Documentation/devicetree/bindings/i2c/i2c-xlp9xx.txt ++F: drivers/i2c/busses/i2c-xlp9xx.c ++ ++XRA1403 GPIO EXPANDER ++M: Nandor Han <nandor.han@ge.com> ++M: Semi Malinen <semi.malinen@ge.com> ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/gpio/gpio-xra1403.txt ++F: drivers/gpio/gpio-xra1403.c ++ ++XTENSA XTFPGA PLATFORM SUPPORT ++M: Max Filippov <jcmvbkbc@gmail.com> ++L: linux-xtensa@linux-xtensa.org ++S: Maintained ++F: drivers/spi/spi-xtensa-xtfpga.c ++F: sound/soc/xtensa/xtfpga-i2s.c ++ ++YAM DRIVER FOR AX.25 ++M: Jean-Paul Roubelat <jpr@f6fbb.org> ++L: linux-hams@vger.kernel.org ++S: Maintained ++F: drivers/net/hamradio/yam* ++F: include/linux/yam.h ++ ++YAMA SECURITY MODULE ++M: Kees Cook <keescook@chromium.org> ++S: Supported ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git yama/tip ++F: Documentation/admin-guide/LSM/Yama.rst ++F: security/yama/ ++ ++YEALINK PHONE DRIVER ++M: Henk Vergonet <Henk.Vergonet@gmail.com> ++L: usbb2k-api-dev@nongnu.org ++S: Maintained ++F: Documentation/input/devices/yealink.rst ++F: drivers/input/misc/yealink.* ++ ++Z8530 DRIVER FOR AX.25 ++M: Joerg Reuter <jreuter@yaina.de> ++L: linux-hams@vger.kernel.org ++S: Maintained ++W: http://yaina.de/jreuter/ ++W: http://www.qsl.net/dl1bke/ ++F: Documentation/networking/device_drivers/hamradio/z8530drv.rst ++F: drivers/net/hamradio/*scc.c ++F: drivers/net/hamradio/z8530.h ++ ++ZBUD COMPRESSED PAGE ALLOCATOR ++M: Seth Jennings <sjenning@redhat.com> ++M: Dan Streetman <ddstreet@ieee.org> ++L: linux-mm@kvack.org ++S: Maintained ++F: mm/zbud.c ++ ++ZD1211RW WIRELESS DRIVER ++M: Ulrich Kunitz <kune@deine-taler.de> ++L: linux-wireless@vger.kernel.org ++L: zd1211-devs@lists.sourceforge.net (subscribers-only) ++S: Maintained ++W: http://zd1211.ath.cx/wiki/DriverRewrite ++F: drivers/net/wireless/zydas/zd1211rw/ ++ ++ZD1301 MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org/ ++W: http://palosaari.fi/linux/ ++Q: https://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/usb/dvb-usb-v2/zd1301* ++ ++ZD1301_DEMOD MEDIA DRIVER ++M: Antti Palosaari <crope@iki.fi> ++L: linux-media@vger.kernel.org ++S: Maintained ++W: https://linuxtv.org/ ++W: http://palosaari.fi/linux/ ++Q: https://patchwork.linuxtv.org/project/linux-media/list/ ++F: drivers/media/dvb-frontends/zd1301_demod* ++ ++ZHAOXIN PROCESSOR SUPPORT ++M: Tony W Wang-oc <TonyWWang-oc@zhaoxin.com> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: arch/x86/kernel/cpu/zhaoxin.c ++ ++ZONEFS FILESYSTEM ++M: Damien Le Moal <damien.lemoal@wdc.com> ++M: Naohiro Aota <naohiro.aota@wdc.com> ++R: Johannes Thumshirn <jth@kernel.org> ++L: linux-fsdevel@vger.kernel.org ++S: Maintained ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs.git ++F: Documentation/filesystems/zonefs.rst ++F: fs/zonefs/ ++ ++ZPOOL COMPRESSED PAGE STORAGE API ++M: Dan Streetman <ddstreet@ieee.org> ++L: linux-mm@kvack.org ++S: Maintained ++F: include/linux/zpool.h ++F: mm/zpool.c ++ ++ZR36067 VIDEO FOR LINUX DRIVER ++M: Corentin Labbe <clabbe@baylibre.com> ++L: mjpeg-users@lists.sourceforge.net ++L: linux-media@vger.kernel.org ++S: Maintained ++W: http://mjpeg.sourceforge.net/driver-zoran/ ++Q: https://patchwork.linuxtv.org/project/linux-media/list/ ++F: Documentation/driver-api/media/drivers/zoran.rst ++F: drivers/staging/media/zoran/ ++ ++ZRAM COMPRESSED RAM BLOCK DEVICE DRVIER ++M: Minchan Kim <minchan@kernel.org> ++M: Nitin Gupta <ngupta@vflare.org> ++R: Sergey Senozhatsky <senozhatsky@chromium.org> ++L: linux-kernel@vger.kernel.org ++S: Maintained ++F: Documentation/admin-guide/blockdev/zram.rst ++F: drivers/block/zram/ ++ ++ZS DECSTATION Z85C30 SERIAL DRIVER ++M: "Maciej W. Rozycki" <macro@orcam.me.uk> ++S: Maintained ++F: drivers/tty/serial/zs.* ++ ++ZSMALLOC COMPRESSED SLAB MEMORY ALLOCATOR ++M: Minchan Kim <minchan@kernel.org> ++M: Nitin Gupta <ngupta@vflare.org> ++R: Sergey Senozhatsky <senozhatsky@chromium.org> ++L: linux-mm@kvack.org ++S: Maintained ++F: Documentation/vm/zsmalloc.rst ++F: include/linux/zsmalloc.h ++F: mm/zsmalloc.c ++ ++ZSWAP COMPRESSED SWAP CACHING ++M: Seth Jennings <sjenning@redhat.com> ++M: Dan Streetman <ddstreet@ieee.org> ++M: Vitaly Wool <vitaly.wool@konsulko.com> ++L: linux-mm@kvack.org ++S: Maintained ++F: mm/zswap.c ++ ++THE REST ++M: Linus Torvalds <torvalds@linux-foundation.org> ++L: linux-kernel@vger.kernel.org ++S: Buried alive in reporters ++Q: http://patchwork.kernel.org/project/LKML/list/ ++T: git git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ++F: * ++F: */ +diff -urN linux-5.15/crypto/drbg.c linux-5.15-lrng/crypto/drbg.c +--- linux-5.15/crypto/drbg.c 2021-11-01 07:53:10.000000000 +1100 ++++ linux-5.15-lrng/crypto/drbg.c 2021-11-29 12:37:31.183279025 +1100 +@@ -114,7 +114,7 @@ + * the SHA256 / AES 256 over other ciphers. Thus, the favored + * DRBGs are the latest entries in this array. + */ +-static const struct drbg_core drbg_cores[] = { ++const struct drbg_core drbg_cores[] = { + #ifdef CONFIG_CRYPTO_DRBG_CTR + { + .flags = DRBG_CTR | DRBG_STRENGTH128, +@@ -191,6 +191,7 @@ + }, + #endif /* CONFIG_CRYPTO_DRBG_HMAC */ + }; ++EXPORT_SYMBOL(drbg_cores); + + static int drbg_uninstantiate(struct drbg_state *drbg); + +@@ -206,7 +207,7 @@ + * Return: normalized strength in *bytes* value or 32 as default + * to counter programming errors + */ +-static inline unsigned short drbg_sec_strength(drbg_flag_t flags) ++unsigned short drbg_sec_strength(drbg_flag_t flags) + { + switch (flags & DRBG_STRENGTH_MASK) { + case DRBG_STRENGTH128: +@@ -219,6 +220,7 @@ + return 32; + } + } ++EXPORT_SYMBOL(drbg_sec_strength); + + /* + * FIPS 140-2 continuous self test for the noise source +@@ -1215,7 +1217,7 @@ + } + + /* Free all substructures in a DRBG state without the DRBG state structure */ +-static inline void drbg_dealloc_state(struct drbg_state *drbg) ++void drbg_dealloc_state(struct drbg_state *drbg) + { + if (!drbg) + return; +@@ -1236,12 +1238,13 @@ + drbg->fips_primed = false; + } + } ++EXPORT_SYMBOL(drbg_dealloc_state); + + /* + * Allocate all sub-structures for a DRBG state. + * The DRBG state structure must already be allocated. + */ +-static inline int drbg_alloc_state(struct drbg_state *drbg) ++int drbg_alloc_state(struct drbg_state *drbg) + { + int ret = -ENOMEM; + unsigned int sb_size = 0; +@@ -1322,6 +1325,7 @@ + drbg_dealloc_state(drbg); + return ret; + } ++EXPORT_SYMBOL(drbg_alloc_state); + + /************************************************************************* + * DRBG interface functions +@@ -1891,8 +1895,7 @@ + * + * return: flags + */ +-static inline void drbg_convert_tfm_core(const char *cra_driver_name, +- int *coreref, bool *pr) ++void drbg_convert_tfm_core(const char *cra_driver_name, int *coreref, bool *pr) + { + int i = 0; + size_t start = 0; +@@ -1919,6 +1922,7 @@ + } + } + } ++EXPORT_SYMBOL(drbg_convert_tfm_core); + + static int drbg_kcapi_init(struct crypto_tfm *tfm) + { +diff -urN linux-5.15/crypto/jitterentropy-kcapi.c linux-5.15-lrng/crypto/jitterentropy-kcapi.c +--- linux-5.15/crypto/jitterentropy-kcapi.c 2021-11-01 07:53:10.000000000 +1100 ++++ linux-5.15-lrng/crypto/jitterentropy-kcapi.c 2021-11-29 12:37:52.903278942 +1100 +@@ -43,8 +43,7 @@ + #include <linux/fips.h> + #include <linux/time.h> + #include <crypto/internal/rng.h> +- +-#include "jitterentropy.h" ++#include <crypto/internal/jitterentropy.h> + + /*************************************************************************** + * Helper function +diff -urN linux-5.15/crypto/jitterentropy.c linux-5.15-lrng/crypto/jitterentropy.c +--- linux-5.15/crypto/jitterentropy.c 2021-11-01 07:53:10.000000000 +1100 ++++ linux-5.15-lrng/crypto/jitterentropy.c 2021-11-29 12:37:52.903278942 +1100 +@@ -117,7 +117,7 @@ + #define JENT_EHEALTH 9 /* Health test failed during initialization */ + #define JENT_ERCT 10 /* RCT failed during initialization */ + +-#include "jitterentropy.h" ++#include <crypto/internal/jitterentropy.h> + + /*************************************************************************** + * Adaptive Proportion Test +diff -urN linux-5.15/crypto/jitterentropy.h linux-5.15-lrng/crypto/jitterentropy.h +--- linux-5.15/crypto/jitterentropy.h 2021-11-01 07:53:10.000000000 +1100 ++++ linux-5.15-lrng/crypto/jitterentropy.h 1970-01-01 10:00:00.000000000 +1000 +@@ -1,17 +0,0 @@ +-// SPDX-License-Identifier: GPL-2.0-or-later +- +-extern void *jent_zalloc(unsigned int len); +-extern void jent_zfree(void *ptr); +-extern int jent_fips_enabled(void); +-extern void jent_panic(char *s); +-extern void jent_memcpy(void *dest, const void *src, unsigned int n); +-extern void jent_get_nstime(__u64 *out); +- +-struct rand_data; +-extern int jent_entropy_init(void); +-extern int jent_read_entropy(struct rand_data *ec, unsigned char *data, +- unsigned int len); +- +-extern struct rand_data *jent_entropy_collector_alloc(unsigned int osr, +- unsigned int flags); +-extern void jent_entropy_collector_free(struct rand_data *entropy_collector); +diff -urN linux-5.15/drivers/char/Kconfig linux-5.15-lrng/drivers/char/Kconfig +--- linux-5.15/drivers/char/Kconfig 2021-11-01 07:53:10.000000000 +1100 ++++ linux-5.15-lrng/drivers/char/Kconfig 2021-11-29 12:36:52.113279174 +1100 +@@ -451,4 +451,6 @@ + pool. Otherwise, say N here so it will be regarded as device input that + only mixes the entropy pool. + ++source "drivers/char/lrng/Kconfig" ++ + endmenu +diff -urN linux-5.15/drivers/char/Makefile linux-5.15-lrng/drivers/char/Makefile +--- linux-5.15/drivers/char/Makefile 2021-11-01 07:53:10.000000000 +1100 ++++ linux-5.15-lrng/drivers/char/Makefile 2021-11-29 12:36:52.113279174 +1100 +@@ -3,7 +3,14 @@ + # Makefile for the kernel character device drivers. + # + +-obj-y += mem.o random.o ++obj-y += mem.o ++ ++ifeq ($(CONFIG_LRNG),y) ++ obj-y += lrng/ ++else ++ obj-y += random.o ++endif ++ + obj-$(CONFIG_TTY_PRINTK) += ttyprintk.o + obj-y += misc.o + obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o +diff -urN linux-5.15/drivers/char/lrng/Kconfig linux-5.15-lrng/drivers/char/lrng/Kconfig +--- linux-5.15/drivers/char/lrng/Kconfig 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/Kconfig 2021-11-29 12:38:26.593278813 +1100 +@@ -0,0 +1,589 @@ ++# SPDX-License-Identifier: GPL-2.0 ++# ++# Linux Random Number Generator configuration ++# ++ ++menuconfig LRNG ++ bool "Linux Random Number Generator" ++ select CRYPTO_LIB_SHA256 if CRYPTO ++ help ++ The Linux Random Number Generator (LRNG) is the replacement ++ of the existing /dev/random provided with drivers/char/random.c. ++ It generates entropy from different noise sources and ++ delivers significant entropy during boot. ++ ++if LRNG ++ ++menu "Specific DRNG seeding strategies" ++ ++config LRNG_OVERSAMPLE_ENTROPY_SOURCES ++ bool "Oversample entropy sources" ++ default n ++ help ++ When enabling this option, the entropy sources are ++ over-sampled with the following approach: First, the ++ the entropy sources are requested to provide 64 bits more ++ entropy than the size of the entropy buffer. For example, ++ if the entropy buffer is 256 bits, 320 bits of entropy ++ is requested to fill that buffer. ++ ++ Second, the seed operation of the deterministic RNG ++ requests 128 bits more data from each entropy source than ++ the security strength of the DRNG during initialization. ++ A prerequisite for this operation is that the digest size ++ of the used hash must be at least equally large to generate ++ that buffer. If the prerequisite is not met, this ++ oversampling is not applied. ++ ++ This strategy is intended to offset the asymptotic entropy ++ increase to reach full entropy in a buffer. ++ ++ The strategy is consistent with the requirements in ++ NIST SP800-90C and is only enforced with fips=1. ++ ++ If unsure, say N. ++ ++config LRNG_OVERSAMPLE_ES_BITS ++ int ++ default 0 if !LRNG_OVERSAMPLE_ENTROPY_SOURCES ++ default 64 if LRNG_OVERSAMPLE_ENTROPY_SOURCES ++ ++config LRNG_SEED_BUFFER_INIT_ADD_BITS ++ int ++ default 0 if !LRNG_OVERSAMPLE_ENTROPY_SOURCES ++ default 128 if LRNG_OVERSAMPLE_ENTROPY_SOURCES ++ ++endmenu # "Specific DRNG seeding strategies" ++ ++menu "Entropy Source Configuration" ++ ++comment "Interrupt Entropy Source" ++ ++config LRNG_IRQ ++ bool "Enable Interrupt Entropy Source as LRNG Seed Source" ++ default y ++ help ++ The LRNG models an entropy source based on the timing of the ++ occurrence of interrupts. Enable this option to enable this ++ IRQ entropy source. ++ ++ The IRQ entropy source is triggered every time an interrupt ++ arrives and thus causes the interrupt handler to execute ++ slightly longer. Disabling the IRQ entropy source implies ++ that the performance penalty on the interrupt handler added ++ by the LRNG is eliminated. Yet, this entropy source is ++ considered to be the internal entropy source of the LRNG. ++ Thus, only disable it if you ensured that other entropy ++ sources are available that supply the LRNG with entropy. ++ ++ If you disable the IRQ entropy source, you MUST ensure ++ one or more entropy sources collectively have the ++ capability to deliver sufficient entropy with one invocation ++ at a rate compliant to the security strength of the DRNG ++ (usually 256 bits of entropy). In addition, if those ++ entropy sources do not deliver sufficient entropy during ++ first request, the reseed must be triggered from user ++ space or kernel space when sufficient entropy is considered ++ to be present. ++ ++ If unsure, say Y. ++ ++choice ++ prompt "Continuous entropy compression boot time setting" ++ default LRNG_CONTINUOUS_COMPRESSION_ENABLED ++ depends on LRNG_IRQ ++ help ++ Select the default behavior of the interrupt entropy source ++ continuous compression operation. ++ ++ The Linux RNG collects entropy data during each interrupt. ++ For performance reasons, a amount of entropy data defined by ++ the LRNG entropy collection pool size is concatenated into ++ an array. When that array is filled up, a hash is calculated ++ to compress the entropy. That hash is calculated in ++ interrupt context. ++ ++ In case such hash calculation in interrupt context is deemed ++ too time-consuming, the continuous compression operation ++ can be disabled. If disabled, the collection of entropy will ++ not trigger a hash compression operation in interrupt context. ++ The compression happens only when the DRNG is reseeded which is ++ in process context. This implies that old entropy data ++ collected after the last DRNG-reseed is overwritten with newer ++ entropy data once the collection pool is full instead of ++ retaining its entropy with the compression operation. ++ ++ config LRNG_CONTINUOUS_COMPRESSION_ENABLED ++ bool "Enable continuous compression (default)" ++ ++ config LRNG_CONTINUOUS_COMPRESSION_DISABLED ++ bool "Disable continuous compression" ++endchoice ++ ++config LRNG_ENABLE_CONTINUOUS_COMPRESSION ++ bool ++ default y if LRNG_CONTINUOUS_COMPRESSION_ENABLED ++ default n if LRNG_CONTINUOUS_COMPRESSION_DISABLED ++ ++config LRNG_SWITCHABLE_CONTINUOUS_COMPRESSION ++ bool "Runtime-switchable continuous entropy compression" ++ depends on LRNG_IRQ ++ help ++ Per default, the interrupt entropy source continuous ++ compression operation behavior is hard-wired into the kernel. ++ Enable this option to allow it to be configurable at boot time. ++ ++ To modify the default behavior of the continuous ++ compression operation, use the kernel command line option ++ of lrng_sw_noise.lrng_pcpu_continuous_compression. ++ ++ If unsure, say N. ++ ++choice ++ prompt "LRNG Entropy Collection Pool Size" ++ default LRNG_COLLECTION_SIZE_1024 ++ depends on LRNG_IRQ ++ help ++ Select the size of the LRNG entropy collection pool ++ storing data for the interrupt entropy source without ++ performing a compression operation. The larger the ++ collection size is, the faster the average interrupt ++ handling will be. The collection size represents the ++ number of bytes of the per-CPU memory used to batch ++ up entropy event data. ++ ++ The default value is good for regular operations. Choose ++ larger sizes for servers that have no memory limitations. ++ If runtime memory is precious, choose a smaller size. ++ ++ The collection size is unrelated to the entropy rate ++ or the amount of entropy the LRNG can process. ++ ++ config LRNG_COLLECTION_SIZE_32 ++ depends on LRNG_CONTINUOUS_COMPRESSION_ENABLED ++ depends on !LRNG_SWITCHABLE_CONTINUOUS_COMPRESSION ++ depends on !LRNG_OVERSAMPLE_ENTROPY_SOURCES ++ bool "32 interrupt events" ++ ++ config LRNG_COLLECTION_SIZE_256 ++ depends on !LRNG_OVERSAMPLE_ENTROPY_SOURCES ++ bool "256 interrupt events" ++ ++ config LRNG_COLLECTION_SIZE_512 ++ bool "512 interrupt events" ++ ++ config LRNG_COLLECTION_SIZE_1024 ++ bool "1024 interrupt events (default)" ++ ++ config LRNG_COLLECTION_SIZE_2048 ++ bool "2048 interrupt events" ++ ++ config LRNG_COLLECTION_SIZE_4096 ++ bool "4096 interrupt events" ++ ++ config LRNG_COLLECTION_SIZE_8192 ++ bool "8192 interrupt events" ++ ++endchoice ++ ++config LRNG_COLLECTION_SIZE ++ int ++ default 32 if LRNG_COLLECTION_SIZE_32 ++ default 256 if LRNG_COLLECTION_SIZE_256 ++ default 512 if LRNG_COLLECTION_SIZE_512 ++ default 1024 if LRNG_COLLECTION_SIZE_1024 ++ default 2048 if LRNG_COLLECTION_SIZE_2048 ++ default 4096 if LRNG_COLLECTION_SIZE_4096 ++ default 8192 if LRNG_COLLECTION_SIZE_8192 ++ ++config LRNG_HEALTH_TESTS ++ bool "Enable interrupt entropy source online health tests" ++ depends on LRNG_IRQ ++ help ++ The online health tests applied to the interrupt entropy ++ source validate the noise source at runtime for fatal ++ errors. These tests include SP800-90B compliant tests ++ which are invoked if the system is booted with fips=1. ++ In case of fatal errors during active SP800-90B tests, ++ the issue is logged and the noise data is discarded. ++ These tests are required for full compliance of the ++ interrupt entropy source with SP800-90B. ++ ++ If unsure, say Y. ++ ++config LRNG_RCT_BROKEN ++ bool "SP800-90B RCT with dangerous low cutoff value" ++ depends on LRNG_HEALTH_TESTS ++ depends on BROKEN ++ default n ++ help ++ This option enables a dangerously low SP800-90B repetitive ++ count test (RCT) cutoff value which makes it very likely ++ that the RCT is triggered to raise a self test failure. ++ ++ This option is ONLY intended for developers wanting to ++ test the effectiveness of the SP800-90B RCT health test. ++ ++ If unsure, say N. ++ ++config LRNG_APT_BROKEN ++ bool "SP800-90B APT with dangerous low cutoff value" ++ depends on LRNG_HEALTH_TESTS ++ depends on BROKEN ++ default n ++ help ++ This option enables a dangerously low SP800-90B adaptive ++ proportion test (APT) cutoff value which makes it very ++ likely that the APT is triggered to raise a self test ++ failure. ++ ++ This option is ONLY intended for developers wanting to ++ test the effectiveness of the SP800-90B APT health test. ++ ++ If unsure, say N. ++ ++# Default taken from SP800-90B sec 4.4.1 - significance level 2^-30 ++config LRNG_RCT_CUTOFF ++ int ++ default 31 if !LRNG_RCT_BROKEN ++ default 1 if LRNG_RCT_BROKEN ++ ++# Default taken from SP800-90B sec 4.4.2 - significance level 2^-30 ++config LRNG_APT_CUTOFF ++ int ++ default 325 if !LRNG_APT_BROKEN ++ default 32 if LRNG_APT_BROKEN ++ ++config LRNG_IRQ_ENTROPY_RATE ++ int "Interrupt Entropy Source Entropy Rate" ++ depends on LRNG_IRQ ++ range 256 4294967295 ++ default 256 ++ help ++ The LRNG will collect the configured number of interrupts to ++ obtain 256 bits of entropy. This value can be set to any between ++ 256 and 4294967295. The LRNG guarantees that this value is not ++ lower than 256. This lower limit implies that one interrupt event ++ is credited with one bit of entropy. This value is subject to the ++ increase by the oversampling factor, if no high-resolution timer ++ is found. ++ ++ In order to effectively disable the interrupt entropy source, ++ the option has to be set to 4294967295. In this case, the ++ interrupt entropy source will still deliver data but without ++ being credited with entropy. ++ ++comment "Jitter RNG Entropy Source" ++ ++config LRNG_JENT ++ bool "Enable Jitter RNG as LRNG Seed Source" ++ depends on CRYPTO ++ select CRYPTO_JITTERENTROPY ++ help ++ The Linux RNG may use the Jitter RNG as noise source. Enabling ++ this option enables the use of the Jitter RNG. Its default ++ entropy level is 16 bits of entropy per 256 data bits delivered ++ by the Jitter RNG. This entropy level can be changed at boot ++ time or at runtime with the lrng_base.jitterrng configuration ++ variable. ++ ++config LRNG_JENT_ENTROPY_RATE ++ int "Jitter RNG Entropy Source Entropy Rate" ++ depends on LRNG_JENT ++ range 0 256 ++ default 16 ++ help ++ The option defines the amount of entropy the LRNG applies to 256 ++ bits of data obtained from the Jitter RNG entropy source. The ++ LRNG enforces the limit that this value must be in the range ++ between 0 and 256. ++ ++ When configuring this value to 0, the Jitter RNG entropy source ++ will provide 256 bits of data without being credited to contain ++ entropy. ++ ++comment "CPU Entropy Source" ++ ++config LRNG_CPU ++ bool "Enable CPU Entropy Source as LRNG Seed Source" ++ default y ++ help ++ Current CPUs commonly contain entropy sources which can be ++ used to seed the LRNG. For example, the Intel RDSEED ++ instruction, or the POWER DARN instruction will be sourced ++ to seed the LRNG if this option is enabled. ++ ++ Note, if this option is enabled and the underlying CPU ++ does not offer such entropy source, the LRNG will automatically ++ detect this and ignore the hardware. ++ ++config LRNG_CPU_FULL_ENT_MULTIPLIER ++ int ++ default 1 if !LRNG_TEST_CPU_ES_COMPRESSION ++ default 123 if LRNG_TEST_CPU_ES_COMPRESSION ++ ++config LRNG_CPU_ENTROPY_RATE ++ int "CPU Entropy Source Entropy Rate" ++ depends on LRNG_CPU ++ range 0 256 ++ default 8 ++ help ++ The option defines the amount of entropy the LRNG applies to 256 ++ bits of data obtained from the CPU entropy source. The LRNG ++ enforces the limit that this value must be in the range between ++ 0 and 256. ++ ++ When configuring this value to 0, the CPU entropy source will ++ provide 256 bits of data without being credited to contain ++ entropy. ++ ++ Note, this option is overwritten when the option ++ CONFIG_RANDOM_TRUST_CPU is set. ++ ++endmenu # "Entropy Source Configuration" ++ ++menuconfig LRNG_DRNG_SWITCH ++ bool "Support DRNG runtime switching" ++ help ++ The Linux RNG per default uses a ChaCha20 DRNG that is ++ accessible via the external interfaces. With this configuration ++ option other DRNGs can be selected and loaded at runtime. ++ ++if LRNG_DRNG_SWITCH ++ ++config LRNG_KCAPI_HASH ++ bool ++ select CRYPTO_HASH ++ ++config LRNG_DRBG ++ tristate "SP800-90A support for the LRNG" ++ depends on CRYPTO ++ select CRYPTO_DRBG_MENU ++ select CRYPTO_SHA512 ++ select LRNG_KCAPI_HASH ++ help ++ Enable the SP800-90A DRBG support for the LRNG. Once the ++ module is loaded, output from /dev/random, /dev/urandom, ++ getrandom(2), or get_random_bytes_full is provided by a DRBG. ++ ++config LRNG_KCAPI ++ tristate "Kernel Crypto API support for the LRNG" ++ depends on CRYPTO ++ depends on !LRNG_DRBG ++ select CRYPTO_RNG ++ select LRNG_KCAPI_HASH ++ help ++ Enable the support for generic pseudo-random number ++ generators offered by the kernel crypto API with the ++ LRNG. Once the module is loaded, output from /dev/random, ++ /dev/urandom, getrandom(2), or get_random_bytes is ++ provided by the selected kernel crypto API RNG. ++endif # LRNG_DRNG_SWITCH ++ ++menuconfig LRNG_TESTING_MENU ++ bool "LRNG testing interfaces" ++ depends on DEBUG_FS ++ help ++ Enable one or more of the following test interfaces. ++ ++ If unsure, say N. ++ ++if LRNG_TESTING_MENU ++ ++config LRNG_RAW_HIRES_ENTROPY ++ bool "Enable entropy test interface to hires timer noise source" ++ default y ++ help ++ The test interface allows a privileged process to capture ++ the raw unconditioned high resolution time stamp noise that ++ is collected by the LRNG for statistical analysis. Extracted ++ noise data is not used to seed the LRNG. ++ ++ The raw noise data can be obtained using the lrng_raw_hires ++ debugfs file. Using the option lrng_testing.boot_raw_hires_test=1 ++ the raw noise of the first 1000 entropy events since boot ++ can be sampled. ++ ++config LRNG_RAW_JIFFIES_ENTROPY ++ bool "Enable entropy test interface to Jiffies noise source" ++ help ++ The test interface allows a privileged process to capture ++ the raw unconditioned Jiffies that is collected by ++ the LRNG for statistical analysis. This data is used for ++ seeding the LRNG if a high-resolution time stamp is not ++ available. If a high-resolution time stamp is detected, ++ the Jiffies value is not collected by the LRNG and no ++ data is provided via the test interface. Extracted noise ++ data is not used to seed the random number generator. ++ ++ The raw noise data can be obtained using the lrng_raw_jiffies ++ debugfs file. Using the option lrng_testing.boot_raw_jiffies_test=1 ++ the raw noise of the first 1000 entropy events since boot ++ can be sampled. ++ ++config LRNG_RAW_IRQ_ENTROPY ++ bool "Enable entropy test interface to IRQ number noise source" ++ help ++ The test interface allows a privileged process to capture ++ the raw unconditioned interrupt number that is collected by ++ the LRNG for statistical analysis. This data is used for ++ seeding the random32 PRNG external to the LRNG if a ++ high-resolution time stamp is available or it will be used to ++ seed the LRNG otherwise. Extracted noise data is not used to ++ seed the random number generator. ++ ++ The raw noise data can be obtained using the lrng_raw_irq ++ debugfs file. Using the option lrng_testing.boot_raw_irq_test=1 ++ the raw noise of the first 1000 entropy events since boot ++ can be sampled. ++ ++config LRNG_RAW_IRQFLAGS_ENTROPY ++ bool "Enable entropy test interface to IRQ flags noise source" ++ help ++ The test interface allows a privileged process to capture ++ the raw unconditioned interrupt flags that is collected by ++ the LRNG for statistical analysis. This data is used for ++ seeding the random32 PRNG external to the LRNG if a ++ high-resolution time stamp is available or it will be used to ++ seed the LRNG otherwise. Extracted noise data is not used to ++ seed the random number generator. ++ ++ The raw noise data can be obtained using the lrng_raw_irqflags ++ debugfs file. Using the option lrng_testing.boot_raw_irqflags_test=1 ++ the raw noise of the first 1000 entropy events since boot ++ can be sampled. ++ ++config LRNG_RAW_RETIP_ENTROPY ++ bool "Enable entropy test interface to RETIP value noise source" ++ help ++ The test interface allows a privileged process to capture ++ the raw unconditioned return instruction pointer value ++ that is collected by the LRNG for statistical analysis. ++ This data is used for seeding the random32 PRNG external ++ to the LRNG if a high-resolution time stamp is available or ++ it will be used to seed the LRNG otherwise. Extracted noise ++ data is not used to seed the random number generator. ++ ++ The raw noise data can be obtained using the lrng_raw_retip ++ debugfs file. Using the option lrng_testing.boot_raw_retip_test=1 ++ the raw noise of the first 1000 entropy events since boot ++ can be sampled. ++ ++config LRNG_RAW_REGS_ENTROPY ++ bool "Enable entropy test interface to IRQ register value noise source" ++ help ++ The test interface allows a privileged process to capture ++ the raw unconditioned interrupt register value that is ++ collected by the LRNG for statistical analysis. Extracted noise ++ data is not used to seed the random number generator. ++ ++ The raw noise data can be obtained using the lrng_raw_regs ++ debugfs file. Using the option lrng_testing.boot_raw_regs_test=1 ++ the raw noise of the first 1000 entropy events since boot ++ can be sampled. ++ ++config LRNG_RAW_ARRAY ++ bool "Enable test interface to LRNG raw entropy storage array" ++ help ++ The test interface allows a privileged process to capture ++ the raw noise data that is collected by the LRNG ++ in the per-CPU array for statistical analysis. The purpose ++ of this interface is to verify that the array handling code ++ truly only concatenates data and provides the same entropy ++ rate as the raw unconditioned noise source when assessing ++ the collected data byte-wise. ++ ++ The data can be obtained using the lrng_raw_array debugfs ++ file. Using the option lrng_testing.boot_raw_array=1 ++ the raw noise of the first 1000 entropy events since boot ++ can be sampled. ++ ++config LRNG_IRQ_PERF ++ bool "Enable LRNG interrupt performance monitor" ++ help ++ With this option, the performance monitor of the LRNG ++ interrupt handling code is enabled. The file provides ++ the execution time of the interrupt handler in ++ cycles. ++ ++ The interrupt performance data can be obtained using ++ the lrng_irq_perf debugfs file. Using the option ++ lrng_testing.boot_irq_perf=1 the performance data of ++ the first 1000 entropy events since boot can be sampled. ++ ++config LRNG_ACVT_HASH ++ bool "Enable LRNG ACVT Hash interface" ++ help ++ With this option, the LRNG built-in hash function used for ++ auxiliary pool management and prior to switching the ++ cryptographic backends is made available for ACVT. The ++ interface allows writing of the data to be hashed ++ into the interface. The read operation triggers the hash ++ operation to generate message digest. ++ ++ The ACVT interface is available with the lrng_acvt_hash ++ debugfs file. ++ ++config LRNG_RUNTIME_ES_CONFIG ++ bool "Enable runtime configuration of entropy sources" ++ help ++ When enabling this option, the LRNG provides the mechanism ++ allowing to alter the entropy rate of each entropy source ++ during boot time and runtime. ++ ++ The following interfaces are available: ++ lrng_archrandom.archrandom for the CPU entropy source, ++ lrng_jent.jitterrng for the Jitter RNG entropy source, and ++ lrng_sw_noise.irq_entropy for the interrupt entropy source. ++ ++config LRNG_RUNTIME_MAX_WO_RESEED_CONFIG ++ bool "Enable runtime configuration of max reseed threshold" ++ help ++ When enabling this option, the LRNG provides an interface ++ allowing the setting of the maximum number of DRNG generate ++ operations without a reseed that has full entropy. The ++ interface is lrng_drng.max_wo_reseed. ++ ++config LRNG_TEST_CPU_ES_COMPRESSION ++ bool "Force CPU ES compression operation" ++ help ++ When enabling this option, the CPU ES compression operation ++ is forced by setting an arbitrary value > 1 for the data ++ multiplier even when the CPU ES would deliver full entropy. ++ This allows testing of the compression operation. It ++ therefore forces to pull more data from the CPU ES ++ than what may be required. ++ ++config LRNG_TESTING ++ bool ++ default y if (LRNG_RAW_HIRES_ENTROPY || LRNG_RAW_JIFFIES_ENTROPY ||LRNG_RAW_IRQ_ENTROPY || LRNG_RAW_IRQFLAGS_ENTROPY || LRNG_RAW_RETIP_ENTROPY || LRNG_RAW_REGS_ENTROPY || LRNG_RAW_ARRAY || LRNG_IRQ_PERF || LRNG_ACVT_HASH) ++ ++endif #LRNG_TESTING_MENU ++ ++config LRNG_SELFTEST ++ bool "Enable power-on and on-demand self-tests" ++ help ++ The power-on self-tests are executed during boot time ++ covering the ChaCha20 DRNG, the hash operation used for ++ processing the entropy pools and the auxiliary pool, and ++ the time stamp management of the LRNG. ++ ++ The on-demand self-tests are triggered by writing any ++ value into the SysFS file selftest_status. At the same ++ time, when reading this file, the test status is ++ returned. A zero indicates that all tests were executed ++ successfully. ++ ++ If unsure, say Y. ++ ++if LRNG_SELFTEST ++ ++config LRNG_SELFTEST_PANIC ++ bool "Panic the kernel upon self-test failure" ++ help ++ If the option is enabled, the kernel is terminated if an ++ LRNG power-on self-test failure is detected. ++ ++endif # LRNG_SELFTEST ++ ++endif # LRNG +diff -urN linux-5.15/drivers/char/lrng/Makefile linux-5.15-lrng/drivers/char/lrng/Makefile +--- linux-5.15/drivers/char/lrng/Makefile 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/Makefile 2021-11-29 12:38:26.593278813 +1100 +@@ -0,0 +1,21 @@ ++# SPDX-License-Identifier: GPL-2.0 ++# ++# Makefile for the Linux Random Number Generator. ++# ++ ++obj-y += lrng_es_mgr.o lrng_aux.o \ ++ lrng_drng.o lrng_chacha20.o \ ++ lrng_interfaces.o lrng_es_aux.o ++ ++obj-$(CONFIG_LRNG_IRQ) += lrng_es_irq.o ++obj-$(CONFIG_SYSCTL) += lrng_proc.o ++obj-$(CONFIG_NUMA) += lrng_numa.o ++obj-$(CONFIG_LRNG_CPU) += lrng_es_archrandom.o ++obj-$(CONFIG_LRNG_DRNG_SWITCH) += lrng_switch.o ++obj-$(CONFIG_LRNG_KCAPI_HASH) += lrng_kcapi_hash.o ++obj-$(CONFIG_LRNG_DRBG) += lrng_drbg.o ++obj-$(CONFIG_LRNG_KCAPI) += lrng_kcapi.o ++obj-$(CONFIG_LRNG_JENT) += lrng_es_jent.o ++obj-$(CONFIG_LRNG_HEALTH_TESTS) += lrng_health.o ++obj-$(CONFIG_LRNG_TESTING) += lrng_testing.o ++obj-$(CONFIG_LRNG_SELFTEST) += lrng_selftest.o +diff -urN linux-5.15/drivers/char/lrng/lrng_aux.c linux-5.15-lrng/drivers/char/lrng/lrng_aux.c +--- linux-5.15/drivers/char/lrng/lrng_aux.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_aux.c 2021-11-29 12:36:52.113279174 +1100 +@@ -0,0 +1,136 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG auxiliary interfaces ++ * ++ * Copyright (C) 2019 - 2021 Stephan Mueller <smueller@chronox.de> ++ * Copyright (C) 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All ++ * Rights Reserved. ++ * Copyright (C) 2016 Jason Cooper <jason@lakedaemon.net> ++ */ ++ ++#include <linux/mm.h> ++#include <linux/random.h> ++ ++#include "lrng_internal.h" ++ ++struct batched_entropy { ++ union { ++ u64 entropy_u64[LRNG_DRNG_BLOCKSIZE / sizeof(u64)]; ++ u32 entropy_u32[LRNG_DRNG_BLOCKSIZE / sizeof(u32)]; ++ }; ++ unsigned int position; ++ spinlock_t batch_lock; ++}; ++ ++/* ++ * Get a random word for internal kernel use only. The quality of the random ++ * number is as good as /dev/urandom, but there is no backtrack protection, ++ * with the goal of being quite fast and not depleting entropy. ++ */ ++static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u64) = { ++ .batch_lock = __SPIN_LOCK_UNLOCKED(batched_entropy_u64.lock), ++}; ++ ++u64 get_random_u64(void) ++{ ++ u64 ret; ++ unsigned long flags; ++ struct batched_entropy *batch; ++ ++ lrng_debug_report_seedlevel("get_random_u64"); ++ ++ batch = raw_cpu_ptr(&batched_entropy_u64); ++ spin_lock_irqsave(&batch->batch_lock, flags); ++ if (batch->position % ARRAY_SIZE(batch->entropy_u64) == 0) { ++ lrng_drng_get_atomic((u8 *)batch->entropy_u64, ++ LRNG_DRNG_BLOCKSIZE); ++ batch->position = 0; ++ } ++ ret = batch->entropy_u64[batch->position++]; ++ spin_unlock_irqrestore(&batch->batch_lock, flags); ++ return ret; ++} ++EXPORT_SYMBOL(get_random_u64); ++ ++static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u32) = { ++ .batch_lock = __SPIN_LOCK_UNLOCKED(batched_entropy_u32.lock), ++}; ++ ++u32 get_random_u32(void) ++{ ++ u32 ret; ++ unsigned long flags; ++ struct batched_entropy *batch; ++ ++ lrng_debug_report_seedlevel("get_random_u32"); ++ ++ batch = raw_cpu_ptr(&batched_entropy_u32); ++ spin_lock_irqsave(&batch->batch_lock, flags); ++ if (batch->position % ARRAY_SIZE(batch->entropy_u32) == 0) { ++ lrng_drng_get_atomic((u8 *)batch->entropy_u32, ++ LRNG_DRNG_BLOCKSIZE); ++ batch->position = 0; ++ } ++ ret = batch->entropy_u32[batch->position++]; ++ spin_unlock_irqrestore(&batch->batch_lock, flags); ++ return ret; ++} ++EXPORT_SYMBOL(get_random_u32); ++ ++/* ++ * It's important to invalidate all potential batched entropy that might ++ * be stored before the crng is initialized, which we can do lazily by ++ * simply resetting the counter to zero so that it's re-extracted on the ++ * next usage. ++ */ ++void invalidate_batched_entropy(void) ++{ ++ int cpu; ++ unsigned long flags; ++ ++ for_each_possible_cpu(cpu) { ++ struct batched_entropy *batched_entropy; ++ ++ batched_entropy = per_cpu_ptr(&batched_entropy_u32, cpu); ++ spin_lock_irqsave(&batched_entropy->batch_lock, flags); ++ batched_entropy->position = 0; ++ spin_unlock(&batched_entropy->batch_lock); ++ ++ batched_entropy = per_cpu_ptr(&batched_entropy_u64, cpu); ++ spin_lock(&batched_entropy->batch_lock); ++ batched_entropy->position = 0; ++ spin_unlock_irqrestore(&batched_entropy->batch_lock, flags); ++ } ++} ++ ++/* ++ * randomize_page - Generate a random, page aligned address ++ * @start: The smallest acceptable address the caller will take. ++ * @range: The size of the area, starting at @start, within which the ++ * random address must fall. ++ * ++ * If @start + @range would overflow, @range is capped. ++ * ++ * NOTE: Historical use of randomize_range, which this replaces, presumed that ++ * @start was already page aligned. We now align it regardless. ++ * ++ * Return: A page aligned address within [start, start + range). On error, ++ * @start is returned. ++ */ ++unsigned long randomize_page(unsigned long start, unsigned long range) ++{ ++ if (!PAGE_ALIGNED(start)) { ++ range -= PAGE_ALIGN(start) - start; ++ start = PAGE_ALIGN(start); ++ } ++ ++ if (start > ULONG_MAX - range) ++ range = ULONG_MAX - start; ++ ++ range >>= PAGE_SHIFT; ++ ++ if (range == 0) ++ return start; ++ ++ return start + (get_random_long() % range << PAGE_SHIFT); ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_chacha20.c linux-5.15-lrng/drivers/char/lrng/lrng_chacha20.c +--- linux-5.15/drivers/char/lrng/lrng_chacha20.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_chacha20.c 2021-11-29 12:36:52.113279174 +1100 +@@ -0,0 +1,321 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * Backend for the LRNG providing the cryptographic primitives using ++ * ChaCha20 cipher implementations. ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <crypto/chacha.h> ++#include <linux/lrng.h> ++#include <linux/random.h> ++#include <linux/slab.h> ++ ++#include "lrng_chacha20.h" ++#include "lrng_internal.h" ++ ++/******************************* ChaCha20 DRNG *******************************/ ++ ++#define CHACHA_BLOCK_WORDS (CHACHA_BLOCK_SIZE / sizeof(u32)) ++ ++struct chacha20_state { ++ struct chacha20_block block; ++}; ++ ++/* ++ * Have a static memory blocks for the ChaCha20 DRNG instance to avoid calling ++ * kmalloc too early in the boot cycle. For subsequent allocation requests, ++ * such as per-NUMA-node DRNG instances, kmalloc will be used. ++ */ ++struct chacha20_state chacha20 __latent_entropy; ++ ++/* ++ * Update of the ChaCha20 state by either using an unused buffer part or by ++ * generating one ChaCha20 block which is half of the state of the ChaCha20. ++ * The block is XORed into the key part of the state. This shall ensure ++ * backtracking resistance as well as a proper mix of the ChaCha20 state once ++ * the key is injected. ++ */ ++static void lrng_chacha20_update(struct chacha20_state *chacha20_state, ++ __le32 *buf, u32 used_words) ++{ ++ struct chacha20_block *chacha20 = &chacha20_state->block; ++ u32 i; ++ __le32 tmp[CHACHA_BLOCK_WORDS]; ++ ++ BUILD_BUG_ON(sizeof(struct chacha20_block) != CHACHA_BLOCK_SIZE); ++ BUILD_BUG_ON(CHACHA_BLOCK_SIZE != 2 * CHACHA_KEY_SIZE); ++ ++ if (used_words > CHACHA_KEY_SIZE_WORDS) { ++ chacha20_block(&chacha20->constants[0], (u8 *)tmp); ++ for (i = 0; i < CHACHA_KEY_SIZE_WORDS; i++) ++ chacha20->key.u[i] ^= le32_to_cpu(tmp[i]); ++ memzero_explicit(tmp, sizeof(tmp)); ++ } else { ++ for (i = 0; i < CHACHA_KEY_SIZE_WORDS; i++) ++ chacha20->key.u[i] ^= le32_to_cpu(buf[i + used_words]); ++ } ++ ++ /* Deterministic increment of nonce as required in RFC 7539 chapter 4 */ ++ chacha20->nonce[0]++; ++ if (chacha20->nonce[0] == 0) { ++ chacha20->nonce[1]++; ++ if (chacha20->nonce[1] == 0) ++ chacha20->nonce[2]++; ++ } ++ ++ /* Leave counter untouched as it is start value is undefined in RFC */ ++} ++ ++/* ++ * Seed the ChaCha20 DRNG by injecting the input data into the key part of ++ * the ChaCha20 state. If the input data is longer than the ChaCha20 key size, ++ * perform a ChaCha20 operation after processing of key size input data. ++ * This operation shall spread out the entropy into the ChaCha20 state before ++ * new entropy is injected into the key part. ++ */ ++static int lrng_cc20_drng_seed_helper(void *drng, const u8 *inbuf, u32 inbuflen) ++{ ++ struct chacha20_state *chacha20_state = (struct chacha20_state *)drng; ++ struct chacha20_block *chacha20 = &chacha20_state->block; ++ ++ while (inbuflen) { ++ u32 i, todo = min_t(u32, inbuflen, CHACHA_KEY_SIZE); ++ ++ for (i = 0; i < todo; i++) ++ chacha20->key.b[i] ^= inbuf[i]; ++ ++ /* Break potential dependencies between the inbuf key blocks */ ++ lrng_chacha20_update(chacha20_state, NULL, ++ CHACHA_BLOCK_WORDS); ++ inbuf += todo; ++ inbuflen -= todo; ++ } ++ ++ return 0; ++} ++ ++/* ++ * Chacha20 DRNG generation of random numbers: the stream output of ChaCha20 ++ * is the random number. After the completion of the generation of the ++ * stream, the entire ChaCha20 state is updated. ++ * ++ * Note, as the ChaCha20 implements a 32 bit counter, we must ensure ++ * that this function is only invoked for at most 2^32 - 1 ChaCha20 blocks ++ * before a reseed or an update happens. This is ensured by the variable ++ * outbuflen which is a 32 bit integer defining the number of bytes to be ++ * generated by the ChaCha20 DRNG. At the end of this function, an update ++ * operation is invoked which implies that the 32 bit counter will never be ++ * overflown in this implementation. ++ */ ++static int lrng_cc20_drng_generate_helper(void *drng, u8 *outbuf, u32 outbuflen) ++{ ++ struct chacha20_state *chacha20_state = (struct chacha20_state *)drng; ++ struct chacha20_block *chacha20 = &chacha20_state->block; ++ __le32 aligned_buf[CHACHA_BLOCK_WORDS]; ++ u32 ret = outbuflen, used = CHACHA_BLOCK_WORDS; ++ int zeroize_buf = 0; ++ ++ while (outbuflen >= CHACHA_BLOCK_SIZE) { ++ chacha20_block(&chacha20->constants[0], outbuf); ++ outbuf += CHACHA_BLOCK_SIZE; ++ outbuflen -= CHACHA_BLOCK_SIZE; ++ } ++ ++ if (outbuflen) { ++ chacha20_block(&chacha20->constants[0], (u8 *)aligned_buf); ++ memcpy(outbuf, aligned_buf, outbuflen); ++ used = ((outbuflen + sizeof(aligned_buf[0]) - 1) / ++ sizeof(aligned_buf[0])); ++ zeroize_buf = 1; ++ } ++ ++ lrng_chacha20_update(chacha20_state, aligned_buf, used); ++ ++ if (zeroize_buf) ++ memzero_explicit(aligned_buf, sizeof(aligned_buf)); ++ ++ return ret; ++} ++ ++void lrng_cc20_init_state(struct chacha20_state *state) ++{ ++ lrng_cc20_init_rfc7539(&state->block); ++} ++ ++/* ++ * Allocation of the DRNG state ++ */ ++static void *lrng_cc20_drng_alloc(u32 sec_strength) ++{ ++ struct chacha20_state *state = NULL; ++ ++ if (sec_strength > CHACHA_KEY_SIZE) { ++ pr_err("Security strength of ChaCha20 DRNG (%u bits) lower than requested by LRNG (%u bits)\n", ++ CHACHA_KEY_SIZE * 8, sec_strength * 8); ++ return ERR_PTR(-EINVAL); ++ } ++ if (sec_strength < CHACHA_KEY_SIZE) ++ pr_warn("Security strength of ChaCha20 DRNG (%u bits) higher than requested by LRNG (%u bits)\n", ++ CHACHA_KEY_SIZE * 8, sec_strength * 8); ++ ++ state = kmalloc(sizeof(struct chacha20_state), GFP_KERNEL); ++ if (!state) ++ return ERR_PTR(-ENOMEM); ++ pr_debug("memory for ChaCha20 core allocated\n"); ++ ++ lrng_cc20_init_state(state); ++ ++ return state; ++} ++ ++static void lrng_cc20_drng_dealloc(void *drng) ++{ ++ struct chacha20_state *chacha20_state = (struct chacha20_state *)drng; ++ ++ if (drng == &chacha20) { ++ memzero_explicit(chacha20_state, sizeof(*chacha20_state)); ++ pr_debug("static ChaCha20 core zeroized\n"); ++ return; ++ } ++ ++ pr_debug("ChaCha20 core zeroized and freed\n"); ++ kfree_sensitive(chacha20_state); ++} ++ ++/******************************* Hash Operation *******************************/ ++ ++#ifdef CONFIG_CRYPTO_LIB_SHA256 ++ ++#include <crypto/sha2.h> ++ ++static u32 lrng_cc20_hash_digestsize(void *hash) ++{ ++ return SHA256_DIGEST_SIZE; ++} ++ ++static int lrng_cc20_hash_init(struct shash_desc *shash, void *hash) ++{ ++ /* ++ * We do not need a TFM - we only need sufficient space for ++ * struct sha256_state on the stack. ++ */ ++ sha256_init(shash_desc_ctx(shash)); ++ return 0; ++} ++ ++static int lrng_cc20_hash_update(struct shash_desc *shash, ++ const u8 *inbuf, u32 inbuflen) ++{ ++ sha256_update(shash_desc_ctx(shash), inbuf, inbuflen); ++ return 0; ++} ++ ++static int lrng_cc20_hash_final(struct shash_desc *shash, u8 *digest) ++{ ++ sha256_final(shash_desc_ctx(shash), digest); ++ return 0; ++} ++ ++static const char *lrng_cc20_hash_name(void) ++{ ++ return "SHA-256"; ++} ++ ++static void lrng_cc20_hash_desc_zero(struct shash_desc *shash) ++{ ++ memzero_explicit(shash_desc_ctx(shash), sizeof(struct sha256_state)); ++} ++ ++#else /* CONFIG_CRYPTO_LIB_SHA256 */ ++ ++#include <crypto/sha1.h> ++#include <crypto/sha1_base.h> ++ ++/* ++ * If the SHA-256 support is not compiled, we fall back to SHA-1 that is always ++ * compiled and present in the kernel. ++ */ ++static u32 lrng_cc20_hash_digestsize(void *hash) ++{ ++ return SHA1_DIGEST_SIZE; ++} ++ ++static void lrng_sha1_block_fn(struct sha1_state *sctx, const u8 *src, ++ int blocks) ++{ ++ u32 temp[SHA1_WORKSPACE_WORDS]; ++ ++ while (blocks--) { ++ sha1_transform(sctx->state, src, temp); ++ src += SHA1_BLOCK_SIZE; ++ } ++ memzero_explicit(temp, sizeof(temp)); ++} ++ ++static int lrng_cc20_hash_init(struct shash_desc *shash, void *hash) ++{ ++ /* ++ * We do not need a TFM - we only need sufficient space for ++ * struct sha1_state on the stack. ++ */ ++ sha1_base_init(shash); ++ return 0; ++} ++ ++static int lrng_cc20_hash_update(struct shash_desc *shash, ++ const u8 *inbuf, u32 inbuflen) ++{ ++ return sha1_base_do_update(shash, inbuf, inbuflen, lrng_sha1_block_fn); ++} ++ ++static int lrng_cc20_hash_final(struct shash_desc *shash, u8 *digest) ++{ ++ return sha1_base_do_finalize(shash, lrng_sha1_block_fn) ?: ++ sha1_base_finish(shash, digest); ++} ++ ++static const char *lrng_cc20_hash_name(void) ++{ ++ return "SHA-1"; ++} ++ ++static void lrng_cc20_hash_desc_zero(struct shash_desc *shash) ++{ ++ memzero_explicit(shash_desc_ctx(shash), sizeof(struct sha1_state)); ++} ++ ++#endif /* CONFIG_CRYPTO_LIB_SHA256 */ ++ ++static void *lrng_cc20_hash_alloc(void) ++{ ++ pr_info("Hash %s allocated\n", lrng_cc20_hash_name()); ++ return NULL; ++} ++ ++static void lrng_cc20_hash_dealloc(void *hash) ++{ ++} ++ ++static const char *lrng_cc20_drng_name(void) ++{ ++ return "ChaCha20 DRNG"; ++} ++ ++const struct lrng_crypto_cb lrng_cc20_crypto_cb = { ++ .lrng_drng_name = lrng_cc20_drng_name, ++ .lrng_hash_name = lrng_cc20_hash_name, ++ .lrng_drng_alloc = lrng_cc20_drng_alloc, ++ .lrng_drng_dealloc = lrng_cc20_drng_dealloc, ++ .lrng_drng_seed_helper = lrng_cc20_drng_seed_helper, ++ .lrng_drng_generate_helper = lrng_cc20_drng_generate_helper, ++ .lrng_hash_alloc = lrng_cc20_hash_alloc, ++ .lrng_hash_dealloc = lrng_cc20_hash_dealloc, ++ .lrng_hash_digestsize = lrng_cc20_hash_digestsize, ++ .lrng_hash_init = lrng_cc20_hash_init, ++ .lrng_hash_update = lrng_cc20_hash_update, ++ .lrng_hash_final = lrng_cc20_hash_final, ++ .lrng_hash_desc_zero = lrng_cc20_hash_desc_zero, ++}; +diff -urN linux-5.15/drivers/char/lrng/lrng_chacha20.h linux-5.15-lrng/drivers/char/lrng/lrng_chacha20.h +--- linux-5.15/drivers/char/lrng/lrng_chacha20.h 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_chacha20.h 2021-11-29 12:36:52.113279174 +1100 +@@ -0,0 +1,25 @@ ++/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ ++/* ++ * LRNG ChaCha20 definitions ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#include <crypto/chacha.h> ++ ++/* State according to RFC 7539 section 2.3 */ ++struct chacha20_block { ++ u32 constants[4]; ++ union { ++#define CHACHA_KEY_SIZE_WORDS (CHACHA_KEY_SIZE / sizeof(u32)) ++ u32 u[CHACHA_KEY_SIZE_WORDS]; ++ u8 b[CHACHA_KEY_SIZE]; ++ } key; ++ u32 counter; ++ u32 nonce[3]; ++}; ++ ++static inline void lrng_cc20_init_rfc7539(struct chacha20_block *chacha20) ++{ ++ chacha_init_consts(chacha20->constants); ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_drbg.c linux-5.15-lrng/drivers/char/lrng/lrng_drbg.c +--- linux-5.15/drivers/char/lrng/lrng_drbg.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_drbg.c 2021-11-29 12:37:37.193279002 +1100 +@@ -0,0 +1,198 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * Backend for the LRNG providing the cryptographic primitives using the ++ * kernel crypto API and its DRBG. ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <crypto/drbg.h> ++#include <linux/init.h> ++#include <linux/module.h> ++#include <linux/lrng.h> ++ ++#include "lrng_kcapi_hash.h" ++ ++/* ++ * Define a DRBG plus a hash / MAC used to extract data from the entropy pool. ++ * For LRNG_HASH_NAME you can use a hash or a MAC (HMAC or CMAC) of your choice ++ * (Note, you should use the suggested selections below -- using SHA-1 or MD5 ++ * is not wise). The idea is that the used cipher primitive can be selected to ++ * be the same as used for the DRBG. I.e. the LRNG only uses one cipher ++ * primitive using the same cipher implementation with the options offered in ++ * the following. This means, if the CTR DRBG is selected and AES-NI is present, ++ * both the CTR DRBG and the selected cmac(aes) use AES-NI. ++ * ++ * The security strengths of the DRBGs are all 256 bits according to ++ * SP800-57 section 5.6.1. ++ * ++ * This definition is allowed to be changed. ++ */ ++#ifdef CONFIG_CRYPTO_DRBG_CTR ++static unsigned int lrng_drbg_type = 0; ++#elif defined CONFIG_CRYPTO_DRBG_HMAC ++static unsigned int lrng_drbg_type = 1; ++#elif defined CONFIG_CRYPTO_DRBG_HASH ++static unsigned int lrng_drbg_type = 2; ++#else ++#error "Unknown DRBG in use" ++#endif ++ ++/* The parameter must be r/o in sysfs as otherwise races appear. */ ++module_param(lrng_drbg_type, uint, 0444); ++MODULE_PARM_DESC(lrng_drbg_type, "DRBG type used for LRNG (0->CTR_DRBG, 1->HMAC_DRBG, 2->Hash_DRBG)"); ++ ++struct lrng_drbg { ++ const char *hash_name; ++ const char *drbg_core; ++}; ++ ++static const struct lrng_drbg lrng_drbg_types[] = { ++ { /* CTR_DRBG with AES-256 using derivation function */ ++ .hash_name = "sha512", ++ .drbg_core = "drbg_nopr_ctr_aes256", ++ }, { /* HMAC_DRBG with SHA-512 */ ++ .hash_name = "sha512", ++ .drbg_core = "drbg_nopr_hmac_sha512", ++ }, { /* Hash_DRBG with SHA-512 using derivation function */ ++ .hash_name = "sha512", ++ .drbg_core = "drbg_nopr_sha512" ++ } ++}; ++ ++static int lrng_drbg_drng_seed_helper(void *drng, const u8 *inbuf, u32 inbuflen) ++{ ++ struct drbg_state *drbg = (struct drbg_state *)drng; ++ LIST_HEAD(seedlist); ++ struct drbg_string data; ++ int ret; ++ ++ drbg_string_fill(&data, inbuf, inbuflen); ++ list_add_tail(&data.list, &seedlist); ++ ret = drbg->d_ops->update(drbg, &seedlist, drbg->seeded); ++ ++ if (ret >= 0) ++ drbg->seeded = true; ++ ++ return ret; ++} ++ ++static int lrng_drbg_drng_generate_helper(void *drng, u8 *outbuf, u32 outbuflen) ++{ ++ struct drbg_state *drbg = (struct drbg_state *)drng; ++ ++ return drbg->d_ops->generate(drbg, outbuf, outbuflen, NULL); ++} ++ ++static void *lrng_drbg_drng_alloc(u32 sec_strength) ++{ ++ struct drbg_state *drbg; ++ int coreref = -1; ++ bool pr = false; ++ int ret; ++ ++ drbg_convert_tfm_core(lrng_drbg_types[lrng_drbg_type].drbg_core, ++ &coreref, &pr); ++ if (coreref < 0) ++ return ERR_PTR(-EFAULT); ++ ++ drbg = kzalloc(sizeof(struct drbg_state), GFP_KERNEL); ++ if (!drbg) ++ return ERR_PTR(-ENOMEM); ++ ++ drbg->core = &drbg_cores[coreref]; ++ drbg->seeded = false; ++ ret = drbg_alloc_state(drbg); ++ if (ret) ++ goto err; ++ ++ if (sec_strength > drbg_sec_strength(drbg->core->flags)) { ++ pr_err("Security strength of DRBG (%u bits) lower than requested by LRNG (%u bits)\n", ++ drbg_sec_strength(drbg->core->flags) * 8, ++ sec_strength * 8); ++ goto dealloc; ++ } ++ ++ if (sec_strength < drbg_sec_strength(drbg->core->flags)) ++ pr_warn("Security strength of DRBG (%u bits) higher than requested by LRNG (%u bits)\n", ++ drbg_sec_strength(drbg->core->flags) * 8, ++ sec_strength * 8); ++ ++ pr_info("DRBG with %s core allocated\n", drbg->core->backend_cra_name); ++ ++ return drbg; ++ ++dealloc: ++ if (drbg->d_ops) ++ drbg->d_ops->crypto_fini(drbg); ++ drbg_dealloc_state(drbg); ++err: ++ kfree(drbg); ++ return ERR_PTR(-EINVAL); ++} ++ ++static void lrng_drbg_drng_dealloc(void *drng) ++{ ++ struct drbg_state *drbg = (struct drbg_state *)drng; ++ ++ if (drbg && drbg->d_ops) ++ drbg->d_ops->crypto_fini(drbg); ++ drbg_dealloc_state(drbg); ++ kfree_sensitive(drbg); ++ pr_info("DRBG deallocated\n"); ++} ++ ++static void *lrng_drbg_hash_alloc(void) ++{ ++ return lrng_kcapi_hash_alloc(lrng_drbg_types[lrng_drbg_type].hash_name); ++} ++ ++static const char *lrng_drbg_name(void) ++{ ++ return lrng_drbg_types[lrng_drbg_type].drbg_core; ++} ++ ++static const char *lrng_hash_name(void) ++{ ++ return lrng_drbg_types[lrng_drbg_type].hash_name; ++} ++ ++static const struct lrng_crypto_cb lrng_drbg_crypto_cb = { ++ .lrng_drng_name = lrng_drbg_name, ++ .lrng_hash_name = lrng_hash_name, ++ .lrng_drng_alloc = lrng_drbg_drng_alloc, ++ .lrng_drng_dealloc = lrng_drbg_drng_dealloc, ++ .lrng_drng_seed_helper = lrng_drbg_drng_seed_helper, ++ .lrng_drng_generate_helper = lrng_drbg_drng_generate_helper, ++ .lrng_hash_alloc = lrng_drbg_hash_alloc, ++ .lrng_hash_dealloc = lrng_kcapi_hash_dealloc, ++ .lrng_hash_digestsize = lrng_kcapi_hash_digestsize, ++ .lrng_hash_init = lrng_kcapi_hash_init, ++ .lrng_hash_update = lrng_kcapi_hash_update, ++ .lrng_hash_final = lrng_kcapi_hash_final, ++ .lrng_hash_desc_zero = lrng_kcapi_hash_zero, ++}; ++ ++static int __init lrng_drbg_init(void) ++{ ++ if (lrng_drbg_type >= ARRAY_SIZE(lrng_drbg_types)) { ++ pr_err("lrng_drbg_type parameter too large (given %u - max: %lu)", ++ lrng_drbg_type, ++ (unsigned long)ARRAY_SIZE(lrng_drbg_types) - 1); ++ return -EAGAIN; ++ } ++ return lrng_set_drng_cb(&lrng_drbg_crypto_cb); ++} ++ ++static void __exit lrng_drbg_exit(void) ++{ ++ lrng_set_drng_cb(NULL); ++} ++ ++late_initcall(lrng_drbg_init); ++module_exit(lrng_drbg_exit); ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_AUTHOR("Stephan Mueller <smueller@chronox.de>"); ++MODULE_DESCRIPTION("Linux Random Number Generator - SP800-90A DRBG backend"); +diff -urN linux-5.15/drivers/char/lrng/lrng_drng.c linux-5.15-lrng/drivers/char/lrng/lrng_drng.c +--- linux-5.15/drivers/char/lrng/lrng_drng.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_drng.c 2021-11-29 12:36:52.113279174 +1100 +@@ -0,0 +1,451 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG DRNG processing ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/fips.h> ++#include <linux/lrng.h> ++ ++#include "lrng_internal.h" ++ ++/* ++ * Maximum number of seconds between DRNG reseed intervals of the DRNG. Note, ++ * this is enforced with the next request of random numbers from the ++ * DRNG. Setting this value to zero implies a reseeding attempt before every ++ * generated random number. ++ */ ++int lrng_drng_reseed_max_time = 600; ++ ++static atomic_t lrng_avail = ATOMIC_INIT(0); ++ ++DEFINE_MUTEX(lrng_crypto_cb_update); ++ ++/* DRNG for /dev/urandom, getrandom(2), get_random_bytes */ ++static struct lrng_drng lrng_drng_init = { ++ .drng = &chacha20, ++ .crypto_cb = &lrng_cc20_crypto_cb, ++ .lock = __MUTEX_INITIALIZER(lrng_drng_init.lock), ++ .spin_lock = __SPIN_LOCK_UNLOCKED(lrng_drng_init.spin_lock), ++ .hash_lock = __RW_LOCK_UNLOCKED(lrng_drng_init.hash_lock) ++}; ++ ++/* ++ * DRNG for get_random_bytes when called in atomic context. This ++ * DRNG will always use the ChaCha20 DRNG. It will never benefit from a ++ * DRNG switch like the "regular" DRNG. If there was no DRNG switch, the atomic ++ * DRNG is identical to the "regular" DRNG. ++ * ++ * The reason for having this is due to the fact that DRNGs other than ++ * the ChaCha20 DRNG may sleep. ++ */ ++static struct lrng_drng lrng_drng_atomic = { ++ .drng = &chacha20, ++ .crypto_cb = &lrng_cc20_crypto_cb, ++ .spin_lock = __SPIN_LOCK_UNLOCKED(lrng_drng_atomic.spin_lock), ++ .hash_lock = __RW_LOCK_UNLOCKED(lrng_drng_atomic.hash_lock) ++}; ++ ++static u32 max_wo_reseed = LRNG_DRNG_MAX_WITHOUT_RESEED; ++#ifdef CONFIG_LRNG_RUNTIME_MAX_WO_RESEED_CONFIG ++module_param(max_wo_reseed, uint, 0444); ++MODULE_PARM_DESC(max_wo_reseed, ++ "Maximum number of DRNG generate operation without full reseed\n"); ++#endif ++ ++/********************************** Helper ************************************/ ++ ++bool lrng_get_available(void) ++{ ++ return likely(atomic_read(&lrng_avail)); ++} ++ ++void lrng_set_available(void) ++{ ++ atomic_set(&lrng_avail, 1); ++} ++ ++struct lrng_drng *lrng_drng_init_instance(void) ++{ ++ return &lrng_drng_init; ++} ++ ++struct lrng_drng *lrng_drng_atomic_instance(void) ++{ ++ return &lrng_drng_atomic; ++} ++ ++void lrng_drng_reset(struct lrng_drng *drng) ++{ ++ atomic_set(&drng->requests, LRNG_DRNG_RESEED_THRESH); ++ atomic_set(&drng->requests_since_fully_seeded, 0); ++ drng->last_seeded = jiffies; ++ drng->fully_seeded = false; ++ drng->force_reseed = true; ++ pr_debug("reset DRNG\n"); ++} ++ ++/* Initialize the default DRNG during boot */ ++static void lrng_drng_seed(struct lrng_drng *drng); ++void lrng_drngs_init_cc20(bool force_seed) ++{ ++ unsigned long flags = 0; ++ ++ if (lrng_get_available()) ++ return; ++ ++ lrng_drng_lock(&lrng_drng_init, &flags); ++ if (lrng_get_available()) { ++ lrng_drng_unlock(&lrng_drng_init, &flags); ++ if (force_seed) ++ goto seed; ++ return; ++ } ++ ++ lrng_drng_reset(&lrng_drng_init); ++ lrng_cc20_init_state(&chacha20); ++ lrng_drng_unlock(&lrng_drng_init, &flags); ++ ++ lrng_drng_lock(&lrng_drng_atomic, &flags); ++ lrng_drng_reset(&lrng_drng_atomic); ++ /* ++ * We do not initialize the state of the atomic DRNG as it is identical ++ * to the DRNG at this point. ++ */ ++ lrng_drng_unlock(&lrng_drng_atomic, &flags); ++ ++ lrng_set_available(); ++ ++seed: ++ /* Seed the DRNG with any entropy available */ ++ if (!lrng_pool_trylock()) { ++ lrng_drng_seed(&lrng_drng_init); ++ pr_info("ChaCha20 core initialized with first seeding\n"); ++ lrng_pool_unlock(); ++ } else { ++ pr_info("ChaCha20 core initialized without seeding\n"); ++ } ++} ++ ++bool lrng_sp80090c_compliant(void) ++{ ++ if (!IS_ENABLED(CONFIG_LRNG_OVERSAMPLE_ENTROPY_SOURCES)) ++ return false; ++ ++ /* Entropy source hash must be capable of transporting enough entropy */ ++ if (lrng_get_digestsize() < ++ (lrng_security_strength() + CONFIG_LRNG_SEED_BUFFER_INIT_ADD_BITS)) ++ return false; ++ ++ /* SP800-90C only requested in FIPS mode */ ++ return fips_enabled; ++} ++ ++/************************* Random Number Generation ***************************/ ++ ++/* Inject a data buffer into the DRNG */ ++static void lrng_drng_inject(struct lrng_drng *drng, ++ const u8 *inbuf, u32 inbuflen, bool fully_seeded) ++{ ++ const char *drng_type = unlikely(drng == &lrng_drng_atomic) ? ++ "atomic" : "regular"; ++ unsigned long flags = 0; ++ ++ BUILD_BUG_ON(LRNG_DRNG_RESEED_THRESH > INT_MAX); ++ pr_debug("seeding %s DRNG with %u bytes\n", drng_type, inbuflen); ++ lrng_drng_lock(drng, &flags); ++ if (drng->crypto_cb->lrng_drng_seed_helper(drng->drng, ++ inbuf, inbuflen) < 0) { ++ pr_warn("seeding of %s DRNG failed\n", drng_type); ++ drng->force_reseed = true; ++ } else { ++ int gc = LRNG_DRNG_RESEED_THRESH - atomic_read(&drng->requests); ++ ++ pr_debug("%s DRNG stats since last seeding: %lu secs; generate calls: %d\n", ++ drng_type, ++ (time_after(jiffies, drng->last_seeded) ? ++ (jiffies - drng->last_seeded) : 0) / HZ, gc); ++ ++ /* Count the numbers of generate ops since last fully seeded */ ++ if (fully_seeded) ++ atomic_set(&drng->requests_since_fully_seeded, 0); ++ else ++ atomic_add(gc, &drng->requests_since_fully_seeded); ++ ++ drng->last_seeded = jiffies; ++ atomic_set(&drng->requests, LRNG_DRNG_RESEED_THRESH); ++ drng->force_reseed = false; ++ ++ if (!drng->fully_seeded) { ++ drng->fully_seeded = fully_seeded; ++ if (drng->fully_seeded) ++ pr_debug("DRNG fully seeded\n"); ++ } ++ ++ if (drng->drng == lrng_drng_atomic.drng) { ++ lrng_drng_atomic.last_seeded = jiffies; ++ atomic_set(&lrng_drng_atomic.requests, ++ LRNG_DRNG_RESEED_THRESH); ++ lrng_drng_atomic.force_reseed = false; ++ } ++ } ++ lrng_drng_unlock(drng, &flags); ++} ++ ++/* ++ * Perform the seeding of the DRNG with data from noise source ++ */ ++static inline void _lrng_drng_seed(struct lrng_drng *drng) ++{ ++ struct entropy_buf seedbuf __aligned(LRNG_KCAPI_ALIGN); ++ ++ lrng_fill_seed_buffer(&seedbuf, ++ lrng_get_seed_entropy_osr(drng->fully_seeded)); ++ lrng_init_ops(&seedbuf); ++ lrng_drng_inject(drng, (u8 *)&seedbuf, sizeof(seedbuf), ++ lrng_fully_seeded(drng->fully_seeded, &seedbuf)); ++ memzero_explicit(&seedbuf, sizeof(seedbuf)); ++} ++ ++static int lrng_drng_get(struct lrng_drng *drng, u8 *outbuf, u32 outbuflen); ++static void lrng_drng_seed(struct lrng_drng *drng) ++{ ++ _lrng_drng_seed(drng); ++ ++ BUILD_BUG_ON(LRNG_MIN_SEED_ENTROPY_BITS > ++ LRNG_DRNG_SECURITY_STRENGTH_BITS); ++ ++ /* ++ * Reseed atomic DRNG from current DRNG, ++ * ++ * We can obtain random numbers from DRNG as the lock type ++ * chosen by lrng_drng_get is usable with the current caller. ++ */ ++ if ((drng->drng != lrng_drng_atomic.drng) && ++ (lrng_drng_atomic.force_reseed || ++ atomic_read(&lrng_drng_atomic.requests) <= 0 || ++ time_after(jiffies, lrng_drng_atomic.last_seeded + ++ lrng_drng_reseed_max_time * HZ))) { ++ u8 seedbuf[LRNG_DRNG_SECURITY_STRENGTH_BYTES] ++ __aligned(LRNG_KCAPI_ALIGN); ++ int ret = lrng_drng_get(drng, seedbuf, sizeof(seedbuf)); ++ ++ if (ret < 0) { ++ pr_warn("Error generating random numbers for atomic DRNG: %d\n", ++ ret); ++ } else { ++ lrng_drng_inject(&lrng_drng_atomic, seedbuf, ret, true); ++ } ++ memzero_explicit(&seedbuf, sizeof(seedbuf)); ++ } ++} ++ ++static inline void _lrng_drng_seed_work(struct lrng_drng *drng, u32 node) ++{ ++ pr_debug("reseed triggered by interrupt noise source for DRNG on NUMA node %d\n", ++ node); ++ lrng_drng_seed(drng); ++ if (drng->fully_seeded) { ++ /* Prevent reseed storm */ ++ drng->last_seeded += node * 100 * HZ; ++ /* Prevent draining of pool on idle systems */ ++ lrng_drng_reseed_max_time += 100; ++ } ++} ++ ++/* ++ * DRNG reseed trigger: Kernel thread handler triggered by the schedule_work() ++ */ ++void lrng_drng_seed_work(struct work_struct *dummy) ++{ ++ struct lrng_drng **lrng_drng = lrng_drng_instances(); ++ u32 node; ++ ++ if (lrng_drng) { ++ for_each_online_node(node) { ++ struct lrng_drng *drng = lrng_drng[node]; ++ ++ if (drng && !drng->fully_seeded) { ++ _lrng_drng_seed_work(drng, node); ++ goto out; ++ } ++ } ++ } else { ++ if (!lrng_drng_init.fully_seeded) { ++ _lrng_drng_seed_work(&lrng_drng_init, 0); ++ goto out; ++ } ++ } ++ ++ lrng_pool_all_numa_nodes_seeded(true); ++ ++out: ++ /* Allow the seeding operation to be called again */ ++ lrng_pool_unlock(); ++} ++ ++/* Force all DRNGs to reseed before next generation */ ++void lrng_drng_force_reseed(void) ++{ ++ struct lrng_drng **lrng_drng = lrng_drng_instances(); ++ u32 node; ++ ++ /* ++ * If the initial DRNG is over the reseed threshold, allow a forced ++ * reseed only for the initial DRNG as this is the fallback for all. It ++ * must be kept seeded before all others to keep the LRNG operational. ++ */ ++ if (!lrng_drng || ++ (atomic_read_u32(&lrng_drng_init.requests_since_fully_seeded) > ++ LRNG_DRNG_RESEED_THRESH)) { ++ lrng_drng_init.force_reseed = lrng_drng_init.fully_seeded; ++ pr_debug("force reseed of initial DRNG\n"); ++ return; ++ } ++ for_each_online_node(node) { ++ struct lrng_drng *drng = lrng_drng[node]; ++ ++ if (!drng) ++ continue; ++ ++ drng->force_reseed = drng->fully_seeded; ++ pr_debug("force reseed of DRNG on node %u\n", node); ++ } ++ lrng_drng_atomic.force_reseed = lrng_drng_atomic.fully_seeded; ++} ++ ++/* ++ * lrng_drng_get() - Get random data out of the DRNG which is reseeded ++ * frequently. ++ * ++ * @outbuf: buffer for storing random data ++ * @outbuflen: length of outbuf ++ * ++ * Return: ++ * * < 0 in error case (DRNG generation or update failed) ++ * * >=0 returning the returned number of bytes ++ */ ++static int lrng_drng_get(struct lrng_drng *drng, u8 *outbuf, u32 outbuflen) ++{ ++ unsigned long flags = 0; ++ u32 processed = 0; ++ ++ if (!outbuf || !outbuflen) ++ return 0; ++ ++ outbuflen = min_t(size_t, outbuflen, INT_MAX); ++ ++ lrng_drngs_init_cc20(false); ++ ++ /* If DRNG operated without proper reseed for too long, block LRNG */ ++ BUILD_BUG_ON(LRNG_DRNG_MAX_WITHOUT_RESEED < LRNG_DRNG_RESEED_THRESH); ++ if (atomic_read_u32(&drng->requests_since_fully_seeded) > max_wo_reseed) ++ lrng_unset_fully_seeded(drng); ++ ++ while (outbuflen) { ++ u32 todo = min_t(u32, outbuflen, LRNG_DRNG_MAX_REQSIZE); ++ int ret; ++ ++ /* All but the atomic DRNG are seeded during generation */ ++ if (atomic_dec_and_test(&drng->requests) || ++ drng->force_reseed || ++ time_after(jiffies, drng->last_seeded + ++ lrng_drng_reseed_max_time * HZ)) { ++ if (likely(drng != &lrng_drng_atomic)) { ++ if (lrng_pool_trylock()) { ++ drng->force_reseed = true; ++ } else { ++ lrng_drng_seed(drng); ++ lrng_pool_unlock(); ++ } ++ } ++ } ++ ++ lrng_drng_lock(drng, &flags); ++ ret = drng->crypto_cb->lrng_drng_generate_helper( ++ drng->drng, outbuf + processed, todo); ++ lrng_drng_unlock(drng, &flags); ++ if (ret <= 0) { ++ pr_warn("getting random data from DRNG failed (%d)\n", ++ ret); ++ return -EFAULT; ++ } ++ processed += ret; ++ outbuflen -= ret; ++ } ++ ++ return processed; ++} ++ ++int lrng_drng_get_atomic(u8 *outbuf, u32 outbuflen) ++{ ++ return lrng_drng_get(&lrng_drng_atomic, outbuf, outbuflen); ++} ++ ++int lrng_drng_get_sleep(u8 *outbuf, u32 outbuflen) ++{ ++ struct lrng_drng **lrng_drng = lrng_drng_instances(); ++ struct lrng_drng *drng = &lrng_drng_init; ++ int node = numa_node_id(); ++ ++ might_sleep(); ++ ++ if (lrng_drng && lrng_drng[node] && lrng_drng[node]->fully_seeded) ++ drng = lrng_drng[node]; ++ ++ return lrng_drng_get(drng, outbuf, outbuflen); ++} ++ ++/* Reset LRNG such that all existing entropy is gone */ ++static void _lrng_reset(struct work_struct *work) ++{ ++ struct lrng_drng **lrng_drng = lrng_drng_instances(); ++ unsigned long flags = 0; ++ ++ if (!lrng_drng) { ++ lrng_drng_lock(&lrng_drng_init, &flags); ++ lrng_drng_reset(&lrng_drng_init); ++ lrng_drng_unlock(&lrng_drng_init, &flags); ++ } else { ++ u32 node; ++ ++ for_each_online_node(node) { ++ struct lrng_drng *drng = lrng_drng[node]; ++ ++ if (!drng) ++ continue; ++ lrng_drng_lock(drng, &flags); ++ lrng_drng_reset(drng); ++ lrng_drng_unlock(drng, &flags); ++ } ++ } ++ lrng_set_entropy_thresh(LRNG_INIT_ENTROPY_BITS); ++ ++ lrng_reset_state(); ++} ++ ++static DECLARE_WORK(lrng_reset_work, _lrng_reset); ++ ++void lrng_reset(void) ++{ ++ schedule_work(&lrng_reset_work); ++} ++ ++/***************************** Initialize LRNG *******************************/ ++ ++static int __init lrng_init(void) ++{ ++ lrng_drngs_init_cc20(false); ++ ++ lrng_drngs_numa_alloc(); ++ return 0; ++} ++ ++late_initcall(lrng_init); ++ ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_AUTHOR("Stephan Mueller <smueller@chronox.de>"); ++MODULE_DESCRIPTION("Linux Random Number Generator"); +diff -urN linux-5.15/drivers/char/lrng/lrng_es_archrandom.c linux-5.15-lrng/drivers/char/lrng/lrng_es_archrandom.c +--- linux-5.15/drivers/char/lrng/lrng_es_archrandom.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_es_archrandom.c 2021-11-29 12:37:14.483279088 +1100 +@@ -0,0 +1,226 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG Fast Entropy Source: CPU-based entropy source ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <crypto/hash.h> ++#include <linux/lrng.h> ++#include <linux/random.h> ++ ++#include "lrng_internal.h" ++ ++/* ++ * Estimated entropy of data is a 32th of LRNG_DRNG_SECURITY_STRENGTH_BITS. ++ * As we have no ability to review the implementation of those noise sources, ++ * it is prudent to have a conservative estimate here. ++ */ ++#define LRNG_ARCHRANDOM_DEFAULT_STRENGTH CONFIG_LRNG_CPU_ENTROPY_RATE ++#define LRNG_ARCHRANDOM_TRUST_CPU_STRENGTH LRNG_DRNG_SECURITY_STRENGTH_BITS ++#ifdef CONFIG_RANDOM_TRUST_CPU ++static u32 archrandom = LRNG_ARCHRANDOM_TRUST_CPU_STRENGTH; ++#else ++static u32 archrandom = LRNG_ARCHRANDOM_DEFAULT_STRENGTH; ++#endif ++#ifdef CONFIG_LRNG_RUNTIME_ES_CONFIG ++module_param(archrandom, uint, 0644); ++MODULE_PARM_DESC(archrandom, "Entropy in bits of 256 data bits from CPU noise source (e.g. RDSEED)"); ++#endif ++ ++static int __init lrng_parse_trust_cpu(char *arg) ++{ ++ int ret; ++ bool trust_cpu = false; ++ ++ ret = kstrtobool(arg, &trust_cpu); ++ if (ret) ++ return ret; ++ ++ if (trust_cpu) { ++ archrandom = LRNG_ARCHRANDOM_TRUST_CPU_STRENGTH; ++ lrng_pool_add_entropy(); ++ } else { ++ archrandom = LRNG_ARCHRANDOM_DEFAULT_STRENGTH; ++ } ++ ++ return 0; ++} ++early_param("random.trust_cpu", lrng_parse_trust_cpu); ++ ++u32 lrng_archrandom_entropylevel(u32 requested_bits) ++{ ++ return lrng_fast_noise_entropylevel(archrandom, requested_bits); ++} ++ ++static u32 lrng_get_arch_data(u8 *outbuf, u32 requested_bits) ++{ ++ u32 i; ++ ++ /* operate on full blocks */ ++ BUILD_BUG_ON(LRNG_DRNG_SECURITY_STRENGTH_BYTES % sizeof(unsigned long)); ++ BUILD_BUG_ON(CONFIG_LRNG_SEED_BUFFER_INIT_ADD_BITS % ++ sizeof(unsigned long)); ++ /* ensure we have aligned buffers */ ++ BUILD_BUG_ON(LRNG_KCAPI_ALIGN % sizeof(unsigned long)); ++ ++ for (i = 0; i < (requested_bits >> 3); ++ i += sizeof(unsigned long)) { ++ if (!arch_get_random_seed_long((unsigned long *)(outbuf + i)) && ++ !arch_get_random_long((unsigned long *)(outbuf + i))) { ++ archrandom = 0; ++ return 0; ++ } ++ } ++ ++ return requested_bits; ++} ++ ++static u32 inline lrng_get_arch_data_compress(u8 *outbuf, u32 requested_bits, ++ u32 data_multiplier) ++{ ++ SHASH_DESC_ON_STACK(shash, NULL); ++ const struct lrng_crypto_cb *crypto_cb; ++ struct lrng_drng *drng = lrng_drng_init_instance(); ++ unsigned long flags; ++ u32 ent_bits = 0, i, partial_bits = 0, ++ full_bits = requested_bits * data_multiplier; ++ void *hash; ++ ++ /* Calculate oversampling for SP800-90C */ ++ if (lrng_sp80090c_compliant()) { ++ /* Complete amount of bits to be pulled */ ++ full_bits += CONFIG_LRNG_OVERSAMPLE_ES_BITS * data_multiplier; ++ /* Full blocks that will be pulled */ ++ data_multiplier = full_bits / requested_bits; ++ /* Partial block in bits to be pulled */ ++ partial_bits = full_bits - (data_multiplier * requested_bits); ++ } ++ ++ lrng_hash_lock(drng, &flags); ++ crypto_cb = drng->crypto_cb; ++ hash = drng->hash; ++ ++ if (crypto_cb->lrng_hash_init(shash, hash)) ++ goto out; ++ ++ /* Hash all data from the CPU entropy source */ ++ for (i = 0; i < data_multiplier; i++) { ++ ent_bits = lrng_get_arch_data(outbuf, requested_bits); ++ if (!ent_bits) ++ goto out; ++ ++ if (crypto_cb->lrng_hash_update(shash, outbuf, ent_bits >> 3)) ++ goto err; ++ } ++ ++ /* Hash partial block, if applicable */ ++ ent_bits = lrng_get_arch_data(outbuf, partial_bits); ++ if (ent_bits && ++ crypto_cb->lrng_hash_update(shash, outbuf, ent_bits >> 3)) ++ goto err; ++ ++ pr_debug("pulled %u bits from CPU RNG entropy source\n", full_bits); ++ ++ /* Generate the compressed data to be returned to the caller */ ++ ent_bits = crypto_cb->lrng_hash_digestsize(hash) << 3; ++ if (requested_bits < ent_bits) { ++ u8 digest[LRNG_MAX_DIGESTSIZE]; ++ ++ if (crypto_cb->lrng_hash_final(shash, digest)) ++ goto err; ++ ++ /* Truncate output data to requested size */ ++ memcpy(outbuf, digest, requested_bits >> 3); ++ memzero_explicit(digest, crypto_cb->lrng_hash_digestsize(hash)); ++ ent_bits = requested_bits; ++ } else { ++ if (crypto_cb->lrng_hash_final(shash, outbuf)) ++ goto err; ++ } ++ ++out: ++ crypto_cb->lrng_hash_desc_zero(shash); ++ lrng_hash_unlock(drng, flags); ++ return ent_bits; ++ ++err: ++ ent_bits = 0; ++ goto out; ++} ++ ++/* ++ * If CPU entropy source requires does not return full entropy, return the ++ * multiplier of how much data shall be sampled from it. ++ */ ++static u32 lrng_arch_multiplier(void) ++{ ++ static u32 data_multiplier = 0; ++ ++ if (data_multiplier > 0) { ++ return data_multiplier; ++ } else { ++ unsigned long v; ++ ++ if (IS_ENABLED(CONFIG_X86) && !arch_get_random_seed_long(&v)) { ++ /* ++ * Intel SPEC: pulling 512 blocks from RDRAND ensures ++ * one reseed making it logically equivalent to RDSEED. ++ */ ++ data_multiplier = 512; ++ } else if (IS_ENABLED(CONFIG_PPC)) { ++ /* ++ * PowerISA defines DARN to deliver at least 0.5 bits of ++ * entropy per data bit. ++ */ ++ data_multiplier = 2; ++ } else { ++ /* CPU provides full entropy */ ++ data_multiplier = CONFIG_LRNG_CPU_FULL_ENT_MULTIPLIER; ++ } ++ } ++ return data_multiplier; ++} ++ ++/* ++ * lrng_get_arch() - Get CPU entropy source entropy ++ * ++ * @outbuf: buffer to store entropy of size requested_bits ++ * ++ * Return: ++ * * > 0 on success where value provides the added entropy in bits ++ * * 0 if no fast source was available ++ */ ++u32 lrng_get_arch(u8 *outbuf, u32 requested_bits) ++{ ++ u32 ent_bits, data_multiplier = lrng_arch_multiplier(); ++ ++ if (data_multiplier <= 1) { ++ ent_bits = lrng_get_arch_data(outbuf, requested_bits); ++ } else { ++ ent_bits = lrng_get_arch_data_compress(outbuf, requested_bits, ++ data_multiplier); ++ } ++ ++ ent_bits = lrng_archrandom_entropylevel(ent_bits); ++ pr_debug("obtained %u bits of entropy from CPU RNG entropy source\n", ++ ent_bits); ++ return ent_bits; ++} ++ ++void lrng_arch_es_state(unsigned char *buf, size_t buflen) ++{ ++ const struct lrng_drng *lrng_drng_init = lrng_drng_init_instance(); ++ u32 data_multiplier = lrng_arch_multiplier(); ++ ++ /* Assume the lrng_drng_init lock is taken by caller */ ++ snprintf(buf, buflen, ++ "CPU ES properties:\n" ++ " Hash for compressing data: %s\n" ++ " Data multiplier: %u\n", ++ (data_multiplier <= 1) ? ++ "N/A" : lrng_drng_init->crypto_cb->lrng_hash_name(), ++ data_multiplier); ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_es_aux.c linux-5.15-lrng/drivers/char/lrng/lrng_es_aux.c +--- linux-5.15/drivers/char/lrng/lrng_es_aux.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_es_aux.c 2021-11-29 12:36:52.113279174 +1100 +@@ -0,0 +1,294 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG Slow Entropy Source: Auxiliary entropy pool ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/lrng.h> ++ ++#include "lrng_internal.h" ++ ++/* ++ * This is the auxiliary pool ++ * ++ * The aux pool array is aligned to 8 bytes to comfort the kernel crypto API ++ * cipher implementations of the hash functions used to read the pool: for some ++ * accelerated implementations, we need an alignment to avoid a realignment ++ * which involves memcpy(). The alignment to 8 bytes should satisfy all crypto ++ * implementations. ++ */ ++struct lrng_pool { ++ u8 aux_pool[LRNG_POOL_SIZE]; /* Aux pool: digest state */ ++ atomic_t aux_entropy_bits; ++ atomic_t digestsize; /* Digest size of used hash */ ++ bool initialized; /* Aux pool initialized? */ ++ ++ /* Serialize read of entropy pool and update of aux pool */ ++ spinlock_t lock; ++}; ++ ++static struct lrng_pool lrng_pool __aligned(LRNG_KCAPI_ALIGN) = { ++ .aux_entropy_bits = ATOMIC_INIT(0), ++ .digestsize = ATOMIC_INIT(LRNG_ATOMIC_DIGEST_SIZE), ++ .initialized = false, ++ .lock = __SPIN_LOCK_UNLOCKED(lrng_pool.lock) ++}; ++ ++/********************************** Helper ***********************************/ ++ ++/* Entropy in bits present in aux pool */ ++u32 lrng_avail_aux_entropy(void) ++{ ++ /* Cap available entropy with max entropy */ ++ u32 avail_bits = min_t(u32, lrng_get_digestsize(), ++ atomic_read_u32(&lrng_pool.aux_entropy_bits)); ++ ++ /* Consider oversampling rate due to aux pool conditioning */ ++ return lrng_reduce_by_osr(avail_bits); ++} ++ ++/* Set the digest size of the used hash in bytes */ ++static inline void lrng_set_digestsize(u32 digestsize) ++{ ++ struct lrng_pool *pool = &lrng_pool; ++ u32 ent_bits = atomic_xchg_relaxed(&pool->aux_entropy_bits, 0), ++ old_digestsize = lrng_get_digestsize(); ++ ++ atomic_set(&lrng_pool.digestsize, digestsize); ++ ++ /* ++ * Update the /proc/.../write_wakeup_threshold which must not be larger ++ * than the digest size of the curent conditioning hash. ++ */ ++ digestsize <<= 3; ++ lrng_proc_update_max_write_thresh(digestsize); ++ if (lrng_write_wakeup_bits > digestsize) ++ lrng_write_wakeup_bits = digestsize; ++ ++ /* ++ * In case the new digest is larger than the old one, cap the available ++ * entropy to the old message digest used to process the existing data. ++ */ ++ ent_bits = min_t(u32, ent_bits, old_digestsize); ++ atomic_add(ent_bits, &pool->aux_entropy_bits); ++} ++ ++/* Obtain the digest size provided by the used hash in bits */ ++u32 lrng_get_digestsize(void) ++{ ++ return atomic_read_u32(&lrng_pool.digestsize) << 3; ++} ++ ++/* Set entropy content in user-space controllable aux pool */ ++void lrng_pool_set_entropy(u32 entropy_bits) ++{ ++ atomic_set(&lrng_pool.aux_entropy_bits, entropy_bits); ++} ++ ++/* ++ * Replace old with new hash for auxiliary pool handling ++ * ++ * Assumption: the caller must guarantee that the new_cb is available during the ++ * entire operation (e.g. it must hold the write lock against pointer updating). ++ */ ++int lrng_aux_switch_hash(const struct lrng_crypto_cb *new_cb, void *new_hash, ++ const struct lrng_crypto_cb *old_cb) ++{ ++ struct lrng_pool *pool = &lrng_pool; ++ struct shash_desc *shash = (struct shash_desc *)pool->aux_pool; ++ u8 digest[LRNG_MAX_DIGESTSIZE]; ++ int ret; ++ ++ if (!IS_ENABLED(CONFIG_LRNG_DRNG_SWITCH)) ++ return -EOPNOTSUPP; ++ ++ if (unlikely(!pool->initialized)) ++ return 0; ++ ++ /* Get the aux pool hash with old digest ... */ ++ ret = old_cb->lrng_hash_final(shash, digest) ?: ++ /* ... re-initialize the hash with the new digest ... */ ++ new_cb->lrng_hash_init(shash, new_hash) ?: ++ /* ++ * ... feed the old hash into the new state. We may feed ++ * uninitialized memory into the new state, but this is ++ * considered no issue and even good as we have some more ++ * uncertainty here. ++ */ ++ new_cb->lrng_hash_update(shash, digest, sizeof(digest)); ++ if (!ret) { ++ lrng_set_digestsize(new_cb->lrng_hash_digestsize(new_hash)); ++ pr_debug("Re-initialize aux entropy pool with hash %s\n", ++ new_cb->lrng_hash_name()); ++ } ++ ++ memzero_explicit(digest, sizeof(digest)); ++ return ret; ++} ++ ++/* Insert data into auxiliary pool by using the hash update function. */ ++static int ++lrng_pool_insert_aux_locked(const u8 *inbuf, u32 inbuflen, u32 entropy_bits) ++{ ++ struct lrng_pool *pool = &lrng_pool; ++ struct shash_desc *shash = (struct shash_desc *)pool->aux_pool; ++ struct lrng_drng *drng = lrng_drng_init_instance(); ++ const struct lrng_crypto_cb *crypto_cb; ++ unsigned long flags; ++ void *hash; ++ int ret; ++ ++ entropy_bits = min_t(u32, entropy_bits, inbuflen << 3); ++ ++ lrng_hash_lock(drng, &flags); ++ ++ crypto_cb = drng->crypto_cb; ++ hash = drng->hash; ++ ++ if (unlikely(!pool->initialized)) { ++ ret = crypto_cb->lrng_hash_init(shash, hash); ++ if (ret) ++ goto out; ++ pool->initialized = true; ++ } ++ ++ ret = crypto_cb->lrng_hash_update(shash, inbuf, inbuflen); ++ if (ret) ++ goto out; ++ ++ /* ++ * Cap the available entropy to the hash output size compliant to ++ * SP800-90B section 3.1.5.1 table 1. ++ */ ++ entropy_bits += atomic_read_u32(&pool->aux_entropy_bits); ++ atomic_set(&pool->aux_entropy_bits, ++ min_t(u32, entropy_bits, ++ crypto_cb->lrng_hash_digestsize(hash) << 3)); ++ ++out: ++ lrng_hash_unlock(drng, flags); ++ return ret; ++} ++ ++int lrng_pool_insert_aux(const u8 *inbuf, u32 inbuflen, u32 entropy_bits) ++{ ++ struct lrng_pool *pool = &lrng_pool; ++ unsigned long flags; ++ int ret; ++ ++ spin_lock_irqsave(&pool->lock, flags); ++ ret = lrng_pool_insert_aux_locked(inbuf, inbuflen, entropy_bits); ++ spin_unlock_irqrestore(&pool->lock, flags); ++ ++ lrng_pool_add_entropy(); ++ ++ return ret; ++} ++ ++/************************* Get data from entropy pool *************************/ ++ ++/* ++ * Get auxiliary entropy pool and its entropy content for seed buffer. ++ * Caller must hold lrng_pool.pool->lock. ++ * @outbuf: buffer to store data in with size requested_bits ++ * @requested_bits: Requested amount of entropy ++ * @return: amount of entropy in outbuf in bits. ++ */ ++static inline u32 lrng_get_aux_pool(u8 *outbuf, u32 requested_bits) ++{ ++ struct lrng_pool *pool = &lrng_pool; ++ struct shash_desc *shash = (struct shash_desc *)pool->aux_pool; ++ struct lrng_drng *drng = lrng_drng_init_instance(); ++ const struct lrng_crypto_cb *crypto_cb; ++ unsigned long flags; ++ void *hash; ++ u32 collected_ent_bits, returned_ent_bits, unused_bits = 0, ++ digestsize; ++ u8 aux_output[LRNG_MAX_DIGESTSIZE]; ++ ++ if (unlikely(!pool->initialized)) ++ return 0; ++ ++ lrng_hash_lock(drng, &flags); ++ ++ crypto_cb = drng->crypto_cb; ++ hash = drng->hash; ++ digestsize = crypto_cb->lrng_hash_digestsize(hash); ++ ++ /* Ensure that no more than the size of aux_pool can be requested */ ++ requested_bits = min_t(u32, requested_bits, (LRNG_MAX_DIGESTSIZE << 3)); ++ ++ /* Cap entropy with entropy counter from aux pool and the used digest */ ++ collected_ent_bits = min_t(u32, digestsize << 3, ++ atomic_xchg_relaxed(&pool->aux_entropy_bits, 0)); ++ ++ /* We collected too much entropy and put the overflow back */ ++ if (collected_ent_bits > (requested_bits + lrng_compress_osr())) { ++ /* Amount of bits we collected too much */ ++ unused_bits = collected_ent_bits - requested_bits; ++ /* Put entropy back */ ++ atomic_add(unused_bits, &pool->aux_entropy_bits); ++ /* Fix collected entropy */ ++ collected_ent_bits = requested_bits; ++ } ++ ++ /* Apply oversampling: discount requested oversampling rate */ ++ returned_ent_bits = lrng_reduce_by_osr(collected_ent_bits); ++ ++ pr_debug("obtained %u bits by collecting %u bits of entropy from aux pool, %u bits of entropy remaining\n", ++ returned_ent_bits, collected_ent_bits, unused_bits); ++ ++ /* Get the digest for the aux pool to be returned to the caller ... */ ++ if (crypto_cb->lrng_hash_final(shash, aux_output) || ++ /* ++ * ... and re-initialize the aux state. Do not add the aux pool ++ * digest for backward secrecy as it will be added with the ++ * insertion of the complete seed buffer after it has been filled. ++ */ ++ crypto_cb->lrng_hash_init(shash, hash)) { ++ returned_ent_bits = 0; ++ } else { ++ /* ++ * Do not truncate the output size exactly to collected_ent_bits ++ * as the aux pool may contain data that is not credited with ++ * entropy, but we want to use them to stir the DRNG state. ++ */ ++ memcpy(outbuf, aux_output, requested_bits >> 3); ++ } ++ ++ lrng_hash_unlock(drng, flags); ++ memzero_explicit(aux_output, digestsize); ++ return returned_ent_bits; ++} ++ ++void lrng_get_backtrack_aux(struct entropy_buf *entropy_buf, u32 requested_bits) ++{ ++ struct lrng_pool *pool = &lrng_pool; ++ unsigned long flags; ++ ++ /* Ensure aux pool extraction and backtracking op are atomic */ ++ spin_lock_irqsave(&pool->lock, flags); ++ ++ entropy_buf->a_bits = lrng_get_aux_pool(entropy_buf->a, requested_bits); ++ ++ /* Mix the extracted data back into pool for backtracking resistance */ ++ if (lrng_pool_insert_aux_locked((u8 *)entropy_buf, ++ sizeof(struct entropy_buf), 0)) ++ pr_warn("Backtracking resistance operation failed\n"); ++ ++ spin_unlock_irqrestore(&pool->lock, flags); ++} ++ ++void lrng_aux_es_state(unsigned char *buf, size_t buflen) ++{ ++ const struct lrng_drng *lrng_drng_init = lrng_drng_init_instance(); ++ ++ /* Assume the lrng_drng_init lock is taken by caller */ ++ snprintf(buf, buflen, ++ "Auxiliary ES properties:\n" ++ " Hash for operating entropy pool: %s\n", ++ lrng_drng_init->crypto_cb->lrng_hash_name()); ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_es_irq.c linux-5.15-lrng/drivers/char/lrng/lrng_es_irq.c +--- linux-5.15/drivers/char/lrng/lrng_es_irq.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_es_irq.c 2021-11-29 12:36:57.763279152 +1100 +@@ -0,0 +1,823 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG Slow Entropy Source: Interrupt data collection ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <asm/irq_regs.h> ++#include <asm/ptrace.h> ++#include <crypto/hash.h> ++#include <linux/gcd.h> ++#include <linux/lrng.h> ++#include <linux/random.h> ++ ++#include "lrng_internal.h" ++#include "lrng_es_irq.h" ++ ++/* ++ * Number of interrupts to be recorded to assume that DRNG security strength ++ * bits of entropy are received. ++ * Note: a value below the DRNG security strength should not be defined as this ++ * may imply the DRNG can never be fully seeded in case other noise ++ * sources are unavailable. ++ */ ++#define LRNG_IRQ_ENTROPY_BITS CONFIG_LRNG_IRQ_ENTROPY_RATE ++ ++ ++/* Number of interrupts required for LRNG_DRNG_SECURITY_STRENGTH_BITS entropy */ ++static u32 lrng_irq_entropy_bits = LRNG_IRQ_ENTROPY_BITS; ++/* Is high-resolution timer present? */ ++static bool lrng_irq_highres_timer = false; ++ ++static u32 irq_entropy __read_mostly = LRNG_IRQ_ENTROPY_BITS; ++#ifdef CONFIG_LRNG_RUNTIME_ES_CONFIG ++module_param(irq_entropy, uint, 0444); ++MODULE_PARM_DESC(irq_entropy, ++ "How many interrupts must be collected for obtaining 256 bits of entropy\n"); ++#endif ++ ++/* Per-CPU array holding concatenated entropy events */ ++static DEFINE_PER_CPU(u32 [LRNG_DATA_ARRAY_SIZE], lrng_pcpu_array) ++ __aligned(LRNG_KCAPI_ALIGN); ++static DEFINE_PER_CPU(u32, lrng_pcpu_array_ptr) = 0; ++static DEFINE_PER_CPU(atomic_t, lrng_pcpu_array_irqs) = ATOMIC_INIT(0); ++ ++/* ++ * The entropy collection is performed by executing the following steps: ++ * 1. fill up the per-CPU array holding the time stamps ++ * 2. once the per-CPU array is full, a compression of the data into ++ * the entropy pool is performed - this happens in interrupt context ++ * ++ * If step 2 is not desired in interrupt context, the following boolean ++ * needs to be set to false. This implies that old entropy data in the ++ * per-CPU array collected since the last DRNG reseed is overwritten with ++ * new entropy data instead of retaining the entropy with the compression ++ * operation. ++ * ++ * Impact on entropy: ++ * ++ * If continuous compression is enabled, the maximum entropy that is collected ++ * per CPU between DRNG reseeds is equal to the digest size of the used hash. ++ * ++ * If continuous compression is disabled, the maximum number of entropy events ++ * that can be collected per CPU is equal to LRNG_DATA_ARRAY_SIZE. This amount ++ * of events is converted into an entropy statement which then represents the ++ * maximum amount of entropy collectible per CPU between DRNG reseeds. ++ */ ++static bool lrng_pcpu_continuous_compression __read_mostly = ++ IS_ENABLED(CONFIG_LRNG_ENABLE_CONTINUOUS_COMPRESSION); ++ ++#ifdef CONFIG_LRNG_SWITCHABLE_CONTINUOUS_COMPRESSION ++module_param(lrng_pcpu_continuous_compression, bool, 0444); ++MODULE_PARM_DESC(lrng_pcpu_continuous_compression, ++ "Perform entropy compression if per-CPU entropy data array is full\n"); ++#endif ++ ++/* ++ * Per-CPU entropy pool with compressed entropy event ++ * ++ * The per-CPU entropy pool is defined as the hash state. New data is simply ++ * inserted into the entropy pool by performing a hash update operation. ++ * To read the entropy pool, a hash final must be invoked. However, before ++ * the entropy pool is released again after a hash final, the hash init must ++ * be performed. ++ */ ++static DEFINE_PER_CPU(u8 [LRNG_POOL_SIZE], lrng_pcpu_pool) ++ __aligned(LRNG_KCAPI_ALIGN); ++/* ++ * Lock to allow other CPUs to read the pool - as this is only done during ++ * reseed which is infrequent, this lock is hardly contended. ++ */ ++static DEFINE_PER_CPU(spinlock_t, lrng_pcpu_lock); ++static DEFINE_PER_CPU(bool, lrng_pcpu_lock_init) = false; ++ ++/* Number of time stamps analyzed to calculate a GCD */ ++#define LRNG_GCD_WINDOW_SIZE 100 ++static u32 lrng_gcd_history[LRNG_GCD_WINDOW_SIZE]; ++static atomic_t lrng_gcd_history_ptr = ATOMIC_INIT(-1); ++ ++/* The common divisor for all timestamps */ ++static u32 lrng_gcd_timer = 0; ++ ++static inline bool lrng_gcd_tested(void) ++{ ++ return (lrng_gcd_timer != 0); ++} ++ ++/* Set the GCD for use in IRQ ES - if 0, the GCD calculation is restarted. */ ++static inline void _lrng_gcd_set(u32 running_gcd) ++{ ++ lrng_gcd_timer = running_gcd; ++ mb(); ++} ++ ++static void lrng_gcd_set(u32 running_gcd) ++{ ++ if (!lrng_gcd_tested()) { ++ _lrng_gcd_set(running_gcd); ++ pr_debug("Setting GCD to %u\n", running_gcd); ++ } ++} ++ ++u32 lrng_gcd_analyze(u32 *history, size_t nelem) ++{ ++ u32 running_gcd = 0; ++ size_t i; ++ ++ /* Now perform the analysis on the accumulated time data. */ ++ for (i = 0; i < nelem; i++) { ++ /* ++ * NOTE: this would be the place to add more analysis on the ++ * appropriateness of the timer like checking the presence ++ * of sufficient variations in the timer. ++ */ ++ ++ /* ++ * This calculates the gcd of all the time values. that is ++ * gcd(time_1, time_2, ..., time_nelem) ++ * ++ * Some timers increment by a fixed (non-1) amount each step. ++ * This code checks for such increments, and allows the library ++ * to output the number of such changes have occurred. ++ */ ++ running_gcd = (u32)gcd(history[i], running_gcd); ++ ++ /* Zeroize data */ ++ history[i] = 0; ++ } ++ ++ return running_gcd; ++} ++ ++static void lrng_gcd_add_value(u32 time) ++{ ++ u32 ptr = (u32)atomic_inc_return_relaxed(&lrng_gcd_history_ptr); ++ ++ if (ptr < LRNG_GCD_WINDOW_SIZE) { ++ lrng_gcd_history[ptr] = time; ++ } else if (ptr == LRNG_GCD_WINDOW_SIZE) { ++ u32 gcd = lrng_gcd_analyze(lrng_gcd_history, ++ LRNG_GCD_WINDOW_SIZE); ++ ++ if (!gcd) ++ gcd = 1; ++ ++ /* ++ * Ensure that we have variations in the time stamp below the ++ * given value. This is just a safety measure to prevent the GCD ++ * becoming too large. ++ */ ++ if (gcd >= 1000) { ++ pr_warn("calculated GCD is larger than expected: %u\n", ++ gcd); ++ gcd = 1000; ++ } ++ ++ /* Adjust all deltas by the observed (small) common factor. */ ++ lrng_gcd_set(gcd); ++ atomic_set(&lrng_gcd_history_ptr, 0); ++ } ++} ++ ++/* Return boolean whether LRNG identified presence of high-resolution timer */ ++static bool lrng_pool_highres_timer(void) ++{ ++ return lrng_irq_highres_timer; ++} ++ ++/* Convert entropy in bits into number of IRQs with the same entropy content. */ ++static inline u32 lrng_entropy_to_data(u32 entropy_bits) ++{ ++ return ((entropy_bits * lrng_irq_entropy_bits) / ++ LRNG_DRNG_SECURITY_STRENGTH_BITS); ++} ++ ++/* Convert number of IRQs into entropy value. */ ++static inline u32 lrng_data_to_entropy(u32 irqnum) ++{ ++ return ((irqnum * LRNG_DRNG_SECURITY_STRENGTH_BITS) / ++ lrng_irq_entropy_bits); ++} ++ ++static inline bool lrng_pcpu_pool_online(int cpu) ++{ ++ return per_cpu(lrng_pcpu_lock_init, cpu); ++} ++ ++static void lrng_pcpu_check_compression_state(void) ++{ ++ /* One pool must hold sufficient entropy for disabled compression */ ++ if (!lrng_pcpu_continuous_compression) { ++ u32 max_ent = min_t(u32, lrng_get_digestsize(), ++ lrng_data_to_entropy(LRNG_DATA_NUM_VALUES)); ++ if (max_ent < lrng_security_strength()) { ++ pr_warn("Force continuous compression operation to ensure LRNG can hold enough entropy\n"); ++ lrng_pcpu_continuous_compression = true; ++ } ++ } ++} ++ ++static int __init lrng_init_time_source(void) ++{ ++ /* Set a minimum number of interrupts that must be collected */ ++ irq_entropy = max_t(u32, LRNG_IRQ_ENTROPY_BITS, irq_entropy); ++ ++ if ((random_get_entropy() & LRNG_DATA_SLOTSIZE_MASK) || ++ (random_get_entropy() & LRNG_DATA_SLOTSIZE_MASK)) { ++ /* ++ * As the highres timer is identified here, previous interrupts ++ * obtained during boot time are treated like a lowres-timer ++ * would have been present. ++ */ ++ lrng_irq_highres_timer = true; ++ lrng_irq_entropy_bits = irq_entropy; ++ } else { ++ u32 new_entropy = irq_entropy * LRNG_IRQ_OVERSAMPLING_FACTOR; ++ ++ lrng_health_disable(); ++ lrng_irq_highres_timer = false; ++ lrng_irq_entropy_bits = (irq_entropy < new_entropy) ? ++ new_entropy : irq_entropy; ++ pr_warn("operating without high-resolution timer and applying IRQ oversampling factor %u\n", ++ LRNG_IRQ_OVERSAMPLING_FACTOR); ++ lrng_pcpu_check_compression_state(); ++ } ++ mb(); ++ ++ return 0; ++} ++core_initcall(lrng_init_time_source); ++ ++/* ++ * Reset all per-CPU pools - reset entropy estimator but leave the pool data ++ * that may or may not have entropy unchanged. ++ */ ++void lrng_pcpu_reset(void) ++{ ++ int cpu; ++ ++ /* Trigger GCD calculation anew. */ ++ _lrng_gcd_set(0); ++ ++ for_each_online_cpu(cpu) ++ atomic_set(per_cpu_ptr(&lrng_pcpu_array_irqs, cpu), 0); ++} ++ ++u32 lrng_pcpu_avail_pool_size(void) ++{ ++ u32 max_size = 0, max_pool = lrng_get_digestsize(); ++ int cpu; ++ ++ if (!lrng_pcpu_continuous_compression) ++ max_pool = min_t(u32, max_pool, LRNG_DATA_NUM_VALUES); ++ ++ for_each_online_cpu(cpu) { ++ if (lrng_pcpu_pool_online(cpu)) ++ max_size += max_pool; ++ } ++ ++ return max_size; ++} ++ ++/* Return entropy of unused IRQs present in all per-CPU pools. */ ++u32 lrng_pcpu_avail_entropy(void) ++{ ++ u32 digestsize_irqs, irq = 0; ++ int cpu; ++ ++ /* Obtain the cap of maximum numbers of IRQs we count */ ++ digestsize_irqs = lrng_entropy_to_data(lrng_get_digestsize()); ++ if (!lrng_pcpu_continuous_compression) { ++ /* Cap to max. number of IRQs the array can hold */ ++ digestsize_irqs = min_t(u32, digestsize_irqs, ++ LRNG_DATA_NUM_VALUES); ++ } ++ ++ for_each_online_cpu(cpu) { ++ if (!lrng_pcpu_pool_online(cpu)) ++ continue; ++ irq += min_t(u32, digestsize_irqs, ++ atomic_read_u32(per_cpu_ptr(&lrng_pcpu_array_irqs, ++ cpu))); ++ } ++ ++ /* Consider oversampling rate */ ++ return lrng_reduce_by_osr(lrng_data_to_entropy(irq)); ++} ++ ++/* ++ * Trigger a switch of the hash implementation for the per-CPU pool. ++ * ++ * For each per-CPU pool, obtain the message digest with the old hash ++ * implementation, initialize the per-CPU pool again with the new hash ++ * implementation and inject the message digest into the new state. ++ * ++ * Assumption: the caller must guarantee that the new_cb is available during the ++ * entire operation (e.g. it must hold the lock against pointer updating). ++ */ ++int lrng_pcpu_switch_hash(int node, ++ const struct lrng_crypto_cb *new_cb, void *new_hash, ++ const struct lrng_crypto_cb *old_cb) ++{ ++ u8 digest[LRNG_MAX_DIGESTSIZE]; ++ u32 digestsize_irqs, found_irqs; ++ int ret = 0, cpu; ++ ++ if (!IS_ENABLED(CONFIG_LRNG_DRNG_SWITCH)) ++ return -EOPNOTSUPP; ++ ++ for_each_online_cpu(cpu) { ++ struct shash_desc *pcpu_shash; ++ ++ /* ++ * Only switch the per-CPU pools for the current node because ++ * the crypto_cb only applies NUMA-node-wide. ++ */ ++ if (cpu_to_node(cpu) != node || !lrng_pcpu_pool_online(cpu)) ++ continue; ++ ++ pcpu_shash = (struct shash_desc *)per_cpu_ptr(lrng_pcpu_pool, ++ cpu); ++ ++ digestsize_irqs = old_cb->lrng_hash_digestsize(pcpu_shash); ++ digestsize_irqs = lrng_entropy_to_data(digestsize_irqs << 3); ++ ++ if (pcpu_shash->tfm == new_hash) ++ continue; ++ ++ /* Get the per-CPU pool hash with old digest ... */ ++ ret = old_cb->lrng_hash_final(pcpu_shash, digest) ?: ++ /* ... re-initialize the hash with the new digest ... */ ++ new_cb->lrng_hash_init(pcpu_shash, new_hash) ?: ++ /* ++ * ... feed the old hash into the new state. We may feed ++ * uninitialized memory into the new state, but this is ++ * considered no issue and even good as we have some more ++ * uncertainty here. ++ */ ++ new_cb->lrng_hash_update(pcpu_shash, digest, ++ sizeof(digest)); ++ if (ret) ++ goto out; ++ ++ /* ++ * In case the new digest is larger than the old one, cap ++ * the available entropy to the old message digest used to ++ * process the existing data. ++ */ ++ found_irqs = atomic_xchg_relaxed( ++ per_cpu_ptr(&lrng_pcpu_array_irqs, cpu), 0); ++ found_irqs = min_t(u32, found_irqs, digestsize_irqs); ++ atomic_add_return_relaxed(found_irqs, ++ per_cpu_ptr(&lrng_pcpu_array_irqs, cpu)); ++ ++ pr_debug("Re-initialize per-CPU entropy pool for CPU %d on NUMA node %d with hash %s\n", ++ cpu, node, new_cb->lrng_hash_name()); ++ } ++ ++out: ++ memzero_explicit(digest, sizeof(digest)); ++ return ret; ++} ++ ++/* ++ * When reading the per-CPU message digest, make sure we use the crypto ++ * callbacks defined for the NUMA node the per-CPU pool is defined for because ++ * the LRNG crypto switch support is only atomic per NUMA node. ++ */ ++static inline u32 ++lrng_pcpu_pool_hash_one(const struct lrng_crypto_cb *pcpu_crypto_cb, ++ void *pcpu_hash, int cpu, u8 *digest, u32 *digestsize) ++{ ++ struct shash_desc *pcpu_shash = ++ (struct shash_desc *)per_cpu_ptr(lrng_pcpu_pool, cpu); ++ spinlock_t *lock = per_cpu_ptr(&lrng_pcpu_lock, cpu); ++ unsigned long flags; ++ u32 digestsize_irqs, found_irqs; ++ ++ /* Lock guarding against reading / writing to per-CPU pool */ ++ spin_lock_irqsave(lock, flags); ++ ++ *digestsize = pcpu_crypto_cb->lrng_hash_digestsize(pcpu_hash); ++ digestsize_irqs = lrng_entropy_to_data(*digestsize << 3); ++ ++ /* Obtain entropy statement like for the entropy pool */ ++ found_irqs = atomic_xchg_relaxed( ++ per_cpu_ptr(&lrng_pcpu_array_irqs, cpu), 0); ++ /* Cap to maximum amount of data we can hold in hash */ ++ found_irqs = min_t(u32, found_irqs, digestsize_irqs); ++ ++ /* Cap to maximum amount of data we can hold in array */ ++ if (!lrng_pcpu_continuous_compression) ++ found_irqs = min_t(u32, found_irqs, LRNG_DATA_NUM_VALUES); ++ ++ /* Store all not-yet compressed data in data array into hash, ... */ ++ if (pcpu_crypto_cb->lrng_hash_update(pcpu_shash, ++ (u8 *)per_cpu_ptr(lrng_pcpu_array, cpu), ++ LRNG_DATA_ARRAY_SIZE * sizeof(u32)) ?: ++ /* ... get the per-CPU pool digest, ... */ ++ pcpu_crypto_cb->lrng_hash_final(pcpu_shash, digest) ?: ++ /* ... re-initialize the hash, ... */ ++ pcpu_crypto_cb->lrng_hash_init(pcpu_shash, pcpu_hash) ?: ++ /* ... feed the old hash into the new state. */ ++ pcpu_crypto_cb->lrng_hash_update(pcpu_shash, digest, *digestsize)) ++ found_irqs = 0; ++ ++ spin_unlock_irqrestore(lock, flags); ++ return found_irqs; ++} ++ ++/* ++ * Hash all per-CPU pools and return the digest to be used as seed data for ++ * seeding a DRNG. The caller must guarantee backtracking resistance. ++ * The function will only copy as much data as entropy is available into the ++ * caller-provided output buffer. ++ * ++ * This function handles the translation from the number of received interrupts ++ * into an entropy statement. The conversion depends on LRNG_IRQ_ENTROPY_BITS ++ * which defines how many interrupts must be received to obtain 256 bits of ++ * entropy. With this value, the function lrng_data_to_entropy converts a given ++ * data size (received interrupts, requested amount of data, etc.) into an ++ * entropy statement. lrng_entropy_to_data does the reverse. ++ * ++ * @outbuf: buffer to store data in with size requested_bits ++ * @requested_bits: Requested amount of entropy ++ * @fully_seeded: indicator whether LRNG is fully seeded ++ * @return: amount of entropy in outbuf in bits. ++ */ ++u32 lrng_pcpu_pool_hash(u8 *outbuf, u32 requested_bits, bool fully_seeded) ++{ ++ SHASH_DESC_ON_STACK(shash, NULL); ++ const struct lrng_crypto_cb *crypto_cb; ++ struct lrng_drng **lrng_drng = lrng_drng_instances(); ++ struct lrng_drng *drng = lrng_drng_init_instance(); ++ u8 digest[LRNG_MAX_DIGESTSIZE]; ++ unsigned long flags, flags2; ++ u32 found_irqs, collected_irqs = 0, collected_ent_bits, requested_irqs, ++ returned_ent_bits; ++ int ret, cpu; ++ void *hash; ++ ++ /* Lock guarding replacement of per-NUMA hash */ ++ lrng_hash_lock(drng, &flags); ++ ++ crypto_cb = drng->crypto_cb; ++ hash = drng->hash; ++ ++ /* The hash state of filled with all per-CPU pool hashes. */ ++ ret = crypto_cb->lrng_hash_init(shash, hash); ++ if (ret) ++ goto err; ++ ++ requested_irqs = lrng_entropy_to_data(requested_bits + ++ lrng_compress_osr()); ++ ++ /* ++ * Harvest entropy from each per-CPU hash state - even though we may ++ * have collected sufficient entropy, we will hash all per-CPU pools. ++ */ ++ for_each_online_cpu(cpu) { ++ struct lrng_drng *pcpu_drng = drng; ++ u32 digestsize, pcpu_unused_irqs = 0; ++ int node = cpu_to_node(cpu); ++ ++ /* If pool is not online, then no entropy is present. */ ++ if (!lrng_pcpu_pool_online(cpu)) ++ continue; ++ ++ if (lrng_drng && lrng_drng[node]) ++ pcpu_drng = lrng_drng[node]; ++ ++ if (pcpu_drng == drng) { ++ found_irqs = lrng_pcpu_pool_hash_one(crypto_cb, hash, ++ cpu, digest, ++ &digestsize); ++ } else { ++ lrng_hash_lock(pcpu_drng, &flags2); ++ found_irqs = ++ lrng_pcpu_pool_hash_one(pcpu_drng->crypto_cb, ++ pcpu_drng->hash, cpu, ++ digest, &digestsize); ++ lrng_hash_unlock(pcpu_drng, flags2); ++ } ++ ++ /* Inject the digest into the state of all per-CPU pools */ ++ ret = crypto_cb->lrng_hash_update(shash, digest, digestsize); ++ if (ret) ++ goto err; ++ ++ collected_irqs += found_irqs; ++ if (collected_irqs > requested_irqs) { ++ pcpu_unused_irqs = collected_irqs - requested_irqs; ++ atomic_add_return_relaxed(pcpu_unused_irqs, ++ per_cpu_ptr(&lrng_pcpu_array_irqs, cpu)); ++ collected_irqs = requested_irqs; ++ } ++ pr_debug("%u interrupts used from entropy pool of CPU %d, %u interrupts remain unused\n", ++ found_irqs - pcpu_unused_irqs, cpu, pcpu_unused_irqs); ++ } ++ ++ ret = crypto_cb->lrng_hash_final(shash, digest); ++ if (ret) ++ goto err; ++ ++ collected_ent_bits = lrng_data_to_entropy(collected_irqs); ++ /* Cap to maximum entropy that can ever be generated with given hash */ ++ collected_ent_bits = min_t(u32, collected_ent_bits, ++ crypto_cb->lrng_hash_digestsize(hash) << 3); ++ /* Apply oversampling: discount requested oversampling rate */ ++ returned_ent_bits = lrng_reduce_by_osr(collected_ent_bits); ++ ++ pr_debug("obtained %u bits by collecting %u bits of entropy from entropy pool noise source\n", ++ returned_ent_bits, collected_ent_bits); ++ ++ /* ++ * Truncate to available entropy as implicitly allowed by SP800-90B ++ * section 3.1.5.1.1 table 1 which awards truncated hashes full ++ * entropy. ++ * ++ * During boot time, we read requested_bits data with ++ * returned_ent_bits entropy. In case our conservative entropy ++ * estimate underestimates the available entropy we can transport as ++ * much available entropy as possible. ++ */ ++ memcpy(outbuf, digest, fully_seeded ? returned_ent_bits >> 3 : ++ requested_bits >> 3); ++ ++out: ++ crypto_cb->lrng_hash_desc_zero(shash); ++ lrng_hash_unlock(drng, flags); ++ memzero_explicit(digest, sizeof(digest)); ++ return returned_ent_bits; ++ ++err: ++ returned_ent_bits = 0; ++ goto out; ++} ++ ++/* Compress the lrng_pcpu_array array into lrng_pcpu_pool */ ++static inline void lrng_pcpu_array_compress(void) ++{ ++ struct shash_desc *shash = ++ (struct shash_desc *)this_cpu_ptr(lrng_pcpu_pool); ++ struct lrng_drng **lrng_drng = lrng_drng_instances(); ++ struct lrng_drng *drng = lrng_drng_init_instance(); ++ const struct lrng_crypto_cb *crypto_cb; ++ spinlock_t *lock = this_cpu_ptr(&lrng_pcpu_lock); ++ unsigned long flags, flags2; ++ int node = numa_node_id(); ++ void *hash; ++ bool init = false; ++ ++ /* Get NUMA-node local hash instance */ ++ if (lrng_drng && lrng_drng[node]) ++ drng = lrng_drng[node]; ++ ++ lrng_hash_lock(drng, &flags); ++ crypto_cb = drng->crypto_cb; ++ hash = drng->hash; ++ ++ if (unlikely(!this_cpu_read(lrng_pcpu_lock_init))) { ++ init = true; ++ spin_lock_init(lock); ++ this_cpu_write(lrng_pcpu_lock_init, true); ++ pr_debug("Initializing per-CPU entropy pool for CPU %d on NUMA node %d with hash %s\n", ++ raw_smp_processor_id(), node, ++ crypto_cb->lrng_hash_name()); ++ } ++ ++ spin_lock_irqsave(lock, flags2); ++ ++ if (unlikely(init) && crypto_cb->lrng_hash_init(shash, hash)) { ++ this_cpu_write(lrng_pcpu_lock_init, false); ++ pr_warn("Initialization of hash failed\n"); ++ } else if (lrng_pcpu_continuous_compression) { ++ /* Add entire per-CPU data array content into entropy pool. */ ++ if (crypto_cb->lrng_hash_update(shash, ++ (u8 *)this_cpu_ptr(lrng_pcpu_array), ++ LRNG_DATA_ARRAY_SIZE * sizeof(u32))) ++ pr_warn_ratelimited("Hashing of entropy data failed\n"); ++ } ++ ++ spin_unlock_irqrestore(lock, flags2); ++ lrng_hash_unlock(drng, flags); ++} ++ ++/* Compress data array into hash */ ++static inline void lrng_pcpu_array_to_hash(u32 ptr) ++{ ++ u32 *array = this_cpu_ptr(lrng_pcpu_array); ++ ++ /* ++ * During boot time the hash operation is triggered more often than ++ * during regular operation. ++ */ ++ if (unlikely(!lrng_state_fully_seeded())) { ++ if ((ptr & 31) && (ptr < LRNG_DATA_WORD_MASK)) ++ return; ++ } else if (ptr < LRNG_DATA_WORD_MASK) { ++ return; ++ } ++ ++ if (lrng_raw_array_entropy_store(*array)) { ++ u32 i; ++ ++ /* ++ * If we fed even a part of the array to external analysis, we ++ * mark that the entire array and the per-CPU pool to have no ++ * entropy. This is due to the non-IID property of the data as ++ * we do not fully know whether the existing dependencies ++ * diminish the entropy beyond to what we expect it has. ++ */ ++ atomic_set(this_cpu_ptr(&lrng_pcpu_array_irqs), 0); ++ ++ for (i = 1; i < LRNG_DATA_ARRAY_SIZE; i++) ++ lrng_raw_array_entropy_store(*(array + i)); ++ } else { ++ lrng_pcpu_array_compress(); ++ /* Ping pool handler about received entropy */ ++ lrng_pool_add_entropy(); ++ } ++} ++ ++/* ++ * Concatenate full 32 bit word at the end of time array even when current ++ * ptr is not aligned to sizeof(data). ++ */ ++static inline void _lrng_pcpu_array_add_u32(u32 data) ++{ ++ /* Increment pointer by number of slots taken for input value */ ++ u32 pre_ptr, mask, ptr = this_cpu_add_return(lrng_pcpu_array_ptr, ++ LRNG_DATA_SLOTS_PER_UINT); ++ unsigned int pre_array; ++ ++ /* ++ * This function injects a unit into the array - guarantee that ++ * array unit size is equal to data type of input data. ++ */ ++ BUILD_BUG_ON(LRNG_DATA_ARRAY_MEMBER_BITS != (sizeof(data) << 3)); ++ ++ /* ++ * The following logic requires at least two units holding ++ * the data as otherwise the pointer would immediately wrap when ++ * injection an u32 word. ++ */ ++ BUILD_BUG_ON(LRNG_DATA_NUM_VALUES <= LRNG_DATA_SLOTS_PER_UINT); ++ ++ lrng_pcpu_split_u32(&ptr, &pre_ptr, &mask); ++ ++ /* MSB of data go into previous unit */ ++ pre_array = lrng_data_idx2array(pre_ptr); ++ /* zeroization of slot to ensure the following OR adds the data */ ++ this_cpu_and(lrng_pcpu_array[pre_array], ~(0xffffffff & ~mask)); ++ this_cpu_or(lrng_pcpu_array[pre_array], data & ~mask); ++ ++ /* Invoke compression as we just filled data array completely */ ++ if (unlikely(pre_ptr > ptr)) ++ lrng_pcpu_array_to_hash(LRNG_DATA_WORD_MASK); ++ ++ /* LSB of data go into current unit */ ++ this_cpu_write(lrng_pcpu_array[lrng_data_idx2array(ptr)], ++ data & mask); ++ ++ if (likely(pre_ptr <= ptr)) ++ lrng_pcpu_array_to_hash(ptr); ++} ++ ++/* Concatenate a 32-bit word at the end of the per-CPU array */ ++void lrng_pcpu_array_add_u32(u32 data) ++{ ++ /* ++ * Disregard entropy-less data without continuous compression to ++ * avoid it overwriting data with entropy when array ptr wraps. ++ */ ++ if (lrng_pcpu_continuous_compression) ++ _lrng_pcpu_array_add_u32(data); ++} ++ ++/* Concatenate data of max LRNG_DATA_SLOTSIZE_MASK at the end of time array */ ++static inline void lrng_pcpu_array_add_slot(u32 data) ++{ ++ /* Get slot */ ++ u32 ptr = this_cpu_inc_return(lrng_pcpu_array_ptr) & ++ LRNG_DATA_WORD_MASK; ++ unsigned int array = lrng_data_idx2array(ptr); ++ unsigned int slot = lrng_data_idx2slot(ptr); ++ ++ BUILD_BUG_ON(LRNG_DATA_ARRAY_MEMBER_BITS % LRNG_DATA_SLOTSIZE_BITS); ++ /* Ensure consistency of values */ ++ BUILD_BUG_ON(LRNG_DATA_ARRAY_MEMBER_BITS != ++ sizeof(lrng_pcpu_array[0]) << 3); ++ ++ /* zeroization of slot to ensure the following OR adds the data */ ++ this_cpu_and(lrng_pcpu_array[array], ++ ~(lrng_data_slot_val(0xffffffff & LRNG_DATA_SLOTSIZE_MASK, ++ slot))); ++ /* Store data into slot */ ++ this_cpu_or(lrng_pcpu_array[array], lrng_data_slot_val(data, slot)); ++ ++ lrng_pcpu_array_to_hash(ptr); ++} ++ ++static inline void ++lrng_time_process_common(u32 time, void(*add_time)(u32 data)) ++{ ++ enum lrng_health_res health_test; ++ ++ if (lrng_raw_hires_entropy_store(time)) ++ return; ++ ++ health_test = lrng_health_test(time); ++ if (health_test > lrng_health_fail_use) ++ return; ++ ++ if (health_test == lrng_health_pass) ++ atomic_inc_return(this_cpu_ptr(&lrng_pcpu_array_irqs)); ++ ++ add_time(time); ++} ++ ++/* ++ * Batching up of entropy in per-CPU array before injecting into entropy pool. ++ */ ++static inline void lrng_time_process(void) ++{ ++ u32 now_time = random_get_entropy(); ++ ++ if (unlikely(!lrng_gcd_tested())) { ++ /* When GCD is unknown, we process the full time stamp */ ++ lrng_time_process_common(now_time, _lrng_pcpu_array_add_u32); ++ lrng_gcd_add_value(now_time); ++ } else { ++ /* GCD is known and applied */ ++ lrng_time_process_common((now_time / lrng_gcd_timer) & ++ LRNG_DATA_SLOTSIZE_MASK, ++ lrng_pcpu_array_add_slot); ++ } ++ ++ lrng_perf_time(now_time); ++} ++ ++/* Hot code path - Callback for interrupt handler */ ++void add_interrupt_randomness(int irq, int irq_flg) ++{ ++ if (lrng_pool_highres_timer()) { ++ lrng_time_process(); ++ } else { ++ struct pt_regs *regs = get_irq_regs(); ++ static atomic_t reg_idx = ATOMIC_INIT(0); ++ u64 ip; ++ u32 tmp; ++ ++ if (regs) { ++ u32 *ptr = (u32 *)regs; ++ int reg_ptr = atomic_add_return_relaxed(1, ®_idx); ++ size_t n = (sizeof(struct pt_regs) / sizeof(u32)); ++ ++ ip = instruction_pointer(regs); ++ tmp = *(ptr + (reg_ptr % n)); ++ tmp = lrng_raw_regs_entropy_store(tmp) ? 0 : tmp; ++ _lrng_pcpu_array_add_u32(tmp); ++ } else { ++ ip = _RET_IP_; ++ } ++ ++ lrng_time_process(); ++ ++ /* ++ * The XOR operation combining the different values is not ++ * considered to destroy entropy since the entirety of all ++ * processed values delivers the entropy (and not each ++ * value separately of the other values). ++ */ ++ tmp = lrng_raw_jiffies_entropy_store(jiffies) ? 0 : jiffies; ++ tmp ^= lrng_raw_irq_entropy_store(irq) ? 0 : irq; ++ tmp ^= lrng_raw_irqflags_entropy_store(irq_flg) ? 0 : irq_flg; ++ tmp ^= lrng_raw_retip_entropy_store(ip) ? 0 : ip; ++ tmp ^= ip >> 32; ++ _lrng_pcpu_array_add_u32(tmp); ++ } ++} ++EXPORT_SYMBOL(add_interrupt_randomness); ++ ++void lrng_irq_es_state(unsigned char *buf, size_t buflen) ++{ ++ const struct lrng_drng *lrng_drng_init = lrng_drng_init_instance(); ++ ++ /* Assume the lrng_drng_init lock is taken by caller */ ++ snprintf(buf, buflen, ++ "IRQ ES properties:\n" ++ " Hash for operating entropy pool: %s\n" ++ " per-CPU interrupt collection size: %u\n" ++ " Standards compliance: %s\n" ++ " High-resolution timer: %s\n" ++ " Continuous compression: %s\n", ++ lrng_drng_init->crypto_cb->lrng_hash_name(), ++ LRNG_DATA_NUM_VALUES, ++ lrng_sp80090b_compliant() ? "SP800-90B " : "", ++ lrng_pool_highres_timer() ? "true" : "false", ++ lrng_pcpu_continuous_compression ? "true" : "false"); ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_es_irq.h linux-5.15-lrng/drivers/char/lrng/lrng_es_irq.h +--- linux-5.15/drivers/char/lrng/lrng_es_irq.h 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_es_irq.h 2021-11-29 12:36:57.773279152 +1100 +@@ -0,0 +1,71 @@ ++/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ ++/* ++ * LRNG Slow Noise Source: Time stamp array handling ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++/* ++ * To limit the impact on the interrupt handling, the LRNG concatenates ++ * entropic LSB parts of the time stamps in a per-CPU array and only ++ * injects them into the entropy pool when the array is full. ++ */ ++ ++/* Store multiple integers in one u32 */ ++#define LRNG_DATA_SLOTSIZE_BITS (8) ++#define LRNG_DATA_SLOTSIZE_MASK ((1 << LRNG_DATA_SLOTSIZE_BITS) - 1) ++#define LRNG_DATA_ARRAY_MEMBER_BITS (4 << 3) /* ((sizeof(u32)) << 3) */ ++#define LRNG_DATA_SLOTS_PER_UINT (LRNG_DATA_ARRAY_MEMBER_BITS / \ ++ LRNG_DATA_SLOTSIZE_BITS) ++ ++/* ++ * Number of time values to store in the array - in small environments ++ * only one atomic_t variable per CPU is used. ++ */ ++#define LRNG_DATA_NUM_VALUES (CONFIG_LRNG_COLLECTION_SIZE) ++/* Mask of LSB of time stamp to store */ ++#define LRNG_DATA_WORD_MASK (LRNG_DATA_NUM_VALUES - 1) ++ ++#define LRNG_DATA_SLOTS_MASK (LRNG_DATA_SLOTS_PER_UINT - 1) ++#define LRNG_DATA_ARRAY_SIZE (LRNG_DATA_NUM_VALUES / \ ++ LRNG_DATA_SLOTS_PER_UINT) ++ ++/* Starting bit index of slot */ ++static inline unsigned int lrng_data_slot2bitindex(unsigned int slot) ++{ ++ return (LRNG_DATA_SLOTSIZE_BITS * slot); ++} ++ ++/* Convert index into the array index */ ++static inline unsigned int lrng_data_idx2array(unsigned int idx) ++{ ++ return idx / LRNG_DATA_SLOTS_PER_UINT; ++} ++ ++/* Convert index into the slot of a given array index */ ++static inline unsigned int lrng_data_idx2slot(unsigned int idx) ++{ ++ return idx & LRNG_DATA_SLOTS_MASK; ++} ++ ++/* Convert value into slot value */ ++static inline unsigned int lrng_data_slot_val(unsigned int val, ++ unsigned int slot) ++{ ++ return val << lrng_data_slot2bitindex(slot); ++} ++ ++/* ++ * Return the pointers for the previous and current units to inject a u32 into. ++ * Also return the mask which the u32 word is to be processed. ++ */ ++static inline void lrng_pcpu_split_u32(u32 *ptr, u32 *pre_ptr, u32 *mask) ++{ ++ /* ptr to previous unit */ ++ *pre_ptr = (*ptr - LRNG_DATA_SLOTS_PER_UINT) & LRNG_DATA_WORD_MASK; ++ *ptr &= LRNG_DATA_WORD_MASK; ++ ++ /* mask to split data into the two parts for the two units */ ++ *mask = ((1 << (*pre_ptr & (LRNG_DATA_SLOTS_PER_UINT - 1)) * ++ LRNG_DATA_SLOTSIZE_BITS)) - 1; ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_es_jent.c linux-5.15-lrng/drivers/char/lrng/lrng_es_jent.c +--- linux-5.15/drivers/char/lrng/lrng_es_jent.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_es_jent.c 2021-11-29 12:38:04.443278898 +1100 +@@ -0,0 +1,97 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG Fast Entropy Source: Jitter RNG ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/types.h> ++#include <crypto/internal/jitterentropy.h> ++ ++#include "lrng_internal.h" ++ ++/* ++ * Estimated entropy of data is a 16th of LRNG_DRNG_SECURITY_STRENGTH_BITS. ++ * Albeit a full entropy assessment is provided for the noise source indicating ++ * that it provides high entropy rates and considering that it deactivates ++ * when it detects insufficient hardware, the chosen under estimation of ++ * entropy is considered to be acceptable to all reviewers. ++ */ ++static u32 jitterrng = CONFIG_LRNG_JENT_ENTROPY_RATE; ++#ifdef CONFIG_LRNG_RUNTIME_ES_CONFIG ++module_param(jitterrng, uint, 0644); ++MODULE_PARM_DESC(jitterrng, "Entropy in bits of 256 data bits from Jitter RNG noise source"); ++#endif ++ ++static bool lrng_jent_initialized = false; ++static struct rand_data *lrng_jent_state; ++ ++static int __init lrng_jent_initialize(void) ++{ ++ /* Initialize the Jitter RNG after the clocksources are initialized. */ ++ if (jent_entropy_init() || ++ (lrng_jent_state = jent_entropy_collector_alloc(1, 0)) == NULL) { ++ jitterrng = 0; ++ pr_info("Jitter RNG unusable on current system\n"); ++ return 0; ++ } ++ lrng_jent_initialized = true; ++ lrng_pool_add_entropy(); ++ pr_debug("Jitter RNG working on current system\n"); ++ ++ return 0; ++} ++device_initcall(lrng_jent_initialize); ++ ++/* ++ * lrng_get_jent() - Get Jitter RNG entropy ++ * ++ * @outbuf: buffer to store entropy ++ * @outbuflen: length of buffer ++ * ++ * Return: ++ * * > 0 on success where value provides the added entropy in bits ++ * * 0 if no fast source was available ++ */ ++u32 lrng_get_jent(u8 *outbuf, u32 requested_bits) ++{ ++ int ret; ++ u32 ent_bits = lrng_jent_entropylevel(requested_bits); ++ unsigned long flags; ++ static DEFINE_SPINLOCK(lrng_jent_lock); ++ ++ spin_lock_irqsave(&lrng_jent_lock, flags); ++ ++ if (!lrng_jent_initialized) { ++ spin_unlock_irqrestore(&lrng_jent_lock, flags); ++ return 0; ++ } ++ ++ ret = jent_read_entropy(lrng_jent_state, outbuf, requested_bits >> 3); ++ spin_unlock_irqrestore(&lrng_jent_lock, flags); ++ ++ if (ret) { ++ pr_debug("Jitter RNG failed with %d\n", ret); ++ return 0; ++ } ++ ++ pr_debug("obtained %u bits of entropy from Jitter RNG noise source\n", ++ ent_bits); ++ ++ return ent_bits; ++} ++ ++u32 lrng_jent_entropylevel(u32 requested_bits) ++{ ++ return lrng_fast_noise_entropylevel((lrng_jent_initialized) ? ++ jitterrng : 0, requested_bits); ++} ++ ++void lrng_jent_es_state(unsigned char *buf, size_t buflen) ++{ ++ snprintf(buf, buflen, ++ "JitterRNG ES properties:\n" ++ " Enabled: %s\n", lrng_jent_initialized ? "true" : "false"); ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_es_mgr.c linux-5.15-lrng/drivers/char/lrng/lrng_es_mgr.c +--- linux-5.15/drivers/char/lrng/lrng_es_mgr.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_es_mgr.c 2021-11-29 12:36:52.113279174 +1100 +@@ -0,0 +1,373 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG Entropy sources management ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <asm/irq_regs.h> ++#include <linux/percpu.h> ++#include <linux/random.h> ++#include <linux/utsname.h> ++#include <linux/workqueue.h> ++ ++#include "lrng_internal.h" ++ ++struct lrng_state { ++ bool can_invalidate; /* Can invalidate batched entropy? */ ++ bool perform_seedwork; /* Can seed work be performed? */ ++ bool lrng_operational; /* Is DRNG operational? */ ++ bool lrng_fully_seeded; /* Is DRNG fully seeded? */ ++ bool lrng_min_seeded; /* Is DRNG minimally seeded? */ ++ bool all_online_numa_node_seeded;/* All NUMA DRNGs seeded? */ ++ ++ /* ++ * To ensure that external entropy providers cannot dominate the ++ * internal noise sources but yet cannot be dominated by internal ++ * noise sources, the following booleans are intended to allow ++ * external to provide seed once when a DRNG reseed occurs. This ++ * triggering of external noise source is performed even when the ++ * entropy pool has sufficient entropy. ++ */ ++ bool lrng_seed_hw; /* Allow HW to provide seed */ ++ bool lrng_seed_user; /* Allow user space to provide seed */ ++ ++ atomic_t boot_entropy_thresh; /* Reseed threshold */ ++ atomic_t reseed_in_progress; /* Flag for on executing reseed */ ++ struct work_struct lrng_seed_work; /* (re)seed work queue */ ++}; ++ ++static struct lrng_state lrng_state = { ++ false, false, false, false, false, false, true, true, ++ .boot_entropy_thresh = ATOMIC_INIT(LRNG_INIT_ENTROPY_BITS), ++ .reseed_in_progress = ATOMIC_INIT(0), ++}; ++ ++/********************************** Helper ***********************************/ ++ ++/* External entropy provider is allowed to provide seed data */ ++bool lrng_state_exseed_allow(enum lrng_external_noise_source source) ++{ ++ if (source == lrng_noise_source_hw) ++ return lrng_state.lrng_seed_hw; ++ return lrng_state.lrng_seed_user; ++} ++ ++/* Enable / disable external entropy provider to furnish seed */ ++void lrng_state_exseed_set(enum lrng_external_noise_source source, bool type) ++{ ++ if (source == lrng_noise_source_hw) ++ lrng_state.lrng_seed_hw = type; ++ else ++ lrng_state.lrng_seed_user = type; ++} ++ ++static inline void lrng_state_exseed_allow_all(void) ++{ ++ lrng_state_exseed_set(lrng_noise_source_hw, true); ++ lrng_state_exseed_set(lrng_noise_source_user, true); ++} ++ ++/* ++ * Reading of the LRNG pool is only allowed by one caller. The reading is ++ * only performed to (re)seed DRNGs. Thus, if this "lock" is already taken, ++ * the reseeding operation is in progress. The caller is not intended to wait ++ * but continue with its other operation. ++ */ ++int lrng_pool_trylock(void) ++{ ++ return atomic_cmpxchg(&lrng_state.reseed_in_progress, 0, 1); ++} ++ ++void lrng_pool_unlock(void) ++{ ++ atomic_set(&lrng_state.reseed_in_progress, 0); ++} ++ ++/* Set new entropy threshold for reseeding during boot */ ++void lrng_set_entropy_thresh(u32 new_entropy_bits) ++{ ++ atomic_set(&lrng_state.boot_entropy_thresh, new_entropy_bits); ++} ++ ++/* ++ * Reset LRNG state - the entropy counters are reset, but the data that may ++ * or may not have entropy remains in the pools as this data will not hurt. ++ */ ++void lrng_reset_state(void) ++{ ++ lrng_pool_set_entropy(0); ++ lrng_pcpu_reset(); ++ lrng_state.lrng_operational = false; ++ lrng_state.lrng_fully_seeded = false; ++ lrng_state.lrng_min_seeded = false; ++ lrng_state.all_online_numa_node_seeded = false; ++ pr_debug("reset LRNG\n"); ++} ++ ++/* Set flag that all DRNGs are fully seeded */ ++void lrng_pool_all_numa_nodes_seeded(bool set) ++{ ++ lrng_state.all_online_numa_node_seeded = set; ++} ++ ++/* Return boolean whether LRNG reached minimally seed level */ ++bool lrng_state_min_seeded(void) ++{ ++ return lrng_state.lrng_min_seeded; ++} ++ ++/* Return boolean whether LRNG reached fully seed level */ ++bool lrng_state_fully_seeded(void) ++{ ++ return lrng_state.lrng_fully_seeded; ++} ++ ++/* Return boolean whether LRNG is considered fully operational */ ++bool lrng_state_operational(void) ++{ ++ return lrng_state.lrng_operational; ++} ++ ++/* Policy to check whether entropy buffer contains full seeded entropy */ ++bool lrng_fully_seeded(bool fully_seeded, struct entropy_buf *eb) ++{ ++ return ((eb->a_bits + eb->b_bits + eb->c_bits + eb->d_bits) >= ++ lrng_get_seed_entropy_osr(fully_seeded)); ++} ++ ++/* Mark one DRNG as not fully seeded */ ++void lrng_unset_fully_seeded(struct lrng_drng *drng) ++{ ++ drng->fully_seeded = false; ++ lrng_pool_all_numa_nodes_seeded(false); ++ ++ /* ++ * The init DRNG instance must always be fully seeded as this instance ++ * is the fall-back if any of the per-NUMA node DRNG instances is ++ * insufficiently seeded. Thus, we mark the entire LRNG as ++ * non-operational if the initial DRNG becomes not fully seeded. ++ */ ++ if (drng == lrng_drng_init_instance() && lrng_state_operational()) { ++ pr_debug("LRNG set to non-operational\n"); ++ lrng_state.lrng_operational = false; ++ lrng_state.lrng_fully_seeded = false; ++ ++ /* If sufficient entropy is available, reseed now. */ ++ lrng_pool_add_entropy(); ++ } ++} ++ ++/* Policy to enable LRNG operational mode */ ++static inline void lrng_set_operational(u32 external_es) ++{ ++ /* LRNG is operational if the initial DRNG is fully seeded ... */ ++ if (lrng_state.lrng_fully_seeded && ++ /* ... and either internal ES SP800-90B startup is complete ... */ ++ (lrng_sp80090b_startup_complete() || ++ /* ... or the external ES provided sufficient entropy. */ ++ (lrng_get_seed_entropy_osr(lrng_state_fully_seeded()) <= ++ external_es))) { ++ lrng_state.lrng_operational = true; ++ lrng_process_ready_list(); ++ lrng_init_wakeup(); ++ pr_info("LRNG fully operational\n"); ++ } ++} ++ ++/* Available entropy in the entire LRNG considering all entropy sources */ ++u32 lrng_avail_entropy(void) ++{ ++ u32 ent_thresh = lrng_security_strength(); ++ ++ /* ++ * Apply oversampling during initialization according to SP800-90C as ++ * we request a larger buffer from the ES. ++ */ ++ if (lrng_sp80090c_compliant() && ++ !lrng_state.all_online_numa_node_seeded) ++ ent_thresh += CONFIG_LRNG_SEED_BUFFER_INIT_ADD_BITS; ++ ++ return lrng_pcpu_avail_entropy() + lrng_avail_aux_entropy() + ++ lrng_archrandom_entropylevel(ent_thresh) + ++ lrng_jent_entropylevel(ent_thresh); ++} ++ ++/* ++ * lrng_init_ops() - Set seed stages of LRNG ++ * ++ * Set the slow noise source reseed trigger threshold. The initial threshold ++ * is set to the minimum data size that can be read from the pool: a word. Upon ++ * reaching this value, the next seed threshold of 128 bits is set followed ++ * by 256 bits. ++ * ++ * @eb: buffer containing the size of entropy currently injected into DRNG ++ */ ++void lrng_init_ops(struct entropy_buf *eb) ++{ ++ struct lrng_state *state = &lrng_state; ++ u32 requested_bits, seed_bits, external_es; ++ ++ if (state->lrng_operational) ++ return; ++ ++ requested_bits = lrng_get_seed_entropy_osr( ++ state->all_online_numa_node_seeded); ++ ++ /* ++ * Entropy provided by external entropy sources - if they provide ++ * the requested amount of entropy, unblock the interface. ++ */ ++ external_es = eb->a_bits + eb->c_bits + eb->d_bits; ++ seed_bits = external_es + eb->b_bits; ++ ++ /* DRNG is seeded with full security strength */ ++ if (state->lrng_fully_seeded) { ++ lrng_set_operational(external_es); ++ lrng_set_entropy_thresh(requested_bits); ++ } else if (lrng_fully_seeded(state->all_online_numa_node_seeded, eb)) { ++ if (state->can_invalidate) ++ invalidate_batched_entropy(); ++ ++ state->lrng_fully_seeded = true; ++ lrng_set_operational(external_es); ++ state->lrng_min_seeded = true; ++ pr_info("LRNG fully seeded with %u bits of entropy\n", ++ seed_bits); ++ lrng_set_entropy_thresh(requested_bits); ++ } else if (!state->lrng_min_seeded) { ++ ++ /* DRNG is seeded with at least 128 bits of entropy */ ++ if (seed_bits >= LRNG_MIN_SEED_ENTROPY_BITS) { ++ if (state->can_invalidate) ++ invalidate_batched_entropy(); ++ ++ state->lrng_min_seeded = true; ++ pr_info("LRNG minimally seeded with %u bits of entropy\n", ++ seed_bits); ++ lrng_set_entropy_thresh(requested_bits); ++ lrng_init_wakeup(); ++ ++ /* DRNG is seeded with at least LRNG_INIT_ENTROPY_BITS bits */ ++ } else if (seed_bits >= LRNG_INIT_ENTROPY_BITS) { ++ pr_info("LRNG initial entropy level %u bits of entropy\n", ++ seed_bits); ++ lrng_set_entropy_thresh(LRNG_MIN_SEED_ENTROPY_BITS); ++ } ++ } ++} ++ ++int __init rand_initialize(void) ++{ ++ struct seed { ++ ktime_t time; ++ unsigned long data[(LRNG_MAX_DIGESTSIZE / ++ sizeof(unsigned long))]; ++ struct new_utsname utsname; ++ } seed __aligned(LRNG_KCAPI_ALIGN); ++ unsigned int i; ++ ++ BUILD_BUG_ON(LRNG_MAX_DIGESTSIZE % sizeof(unsigned long)); ++ ++ seed.time = ktime_get_real(); ++ ++ for (i = 0; i < ARRAY_SIZE(seed.data); i++) { ++ if (!arch_get_random_seed_long_early(&(seed.data[i])) && ++ !arch_get_random_long_early(&seed.data[i])) ++ seed.data[i] = random_get_entropy(); ++ } ++ memcpy(&seed.utsname, utsname(), sizeof(*(utsname()))); ++ ++ lrng_pool_insert_aux((u8 *)&seed, sizeof(seed), 0); ++ memzero_explicit(&seed, sizeof(seed)); ++ ++ /* Initialize the seed work queue */ ++ INIT_WORK(&lrng_state.lrng_seed_work, lrng_drng_seed_work); ++ lrng_state.perform_seedwork = true; ++ ++ lrng_drngs_init_cc20(true); ++ invalidate_batched_entropy(); ++ ++ lrng_state.can_invalidate = true; ++ ++ return 0; ++} ++ ++/* Interface requesting a reseed of the DRNG */ ++void lrng_pool_add_entropy(void) ++{ ++ /* ++ * Once all DRNGs are fully seeded, the interrupt noise ++ * sources will not trigger any reseeding any more. ++ */ ++ if (likely(lrng_state.all_online_numa_node_seeded)) ++ return; ++ ++ /* Only try to reseed if the DRNG is alive. */ ++ if (!lrng_get_available()) ++ return; ++ ++ /* Only trigger the DRNG reseed if we have collected entropy. */ ++ if (lrng_avail_entropy() < ++ atomic_read_u32(&lrng_state.boot_entropy_thresh)) ++ return; ++ ++ /* Ensure that the seeding only occurs once at any given time. */ ++ if (lrng_pool_trylock()) ++ return; ++ ++ /* Seed the DRNG with any available noise. */ ++ if (lrng_state.perform_seedwork) ++ schedule_work(&lrng_state.lrng_seed_work); ++ else ++ lrng_drng_seed_work(NULL); ++} ++ ++/* Fill the seed buffer with data from the noise sources */ ++void lrng_fill_seed_buffer(struct entropy_buf *entropy_buf, u32 requested_bits) ++{ ++ struct lrng_state *state = &lrng_state; ++ u32 req_ent = lrng_sp80090c_compliant() ? ++ lrng_security_strength() : LRNG_MIN_SEED_ENTROPY_BITS; ++ ++ /* Guarantee that requested bits is a multiple of bytes */ ++ BUILD_BUG_ON(LRNG_DRNG_SECURITY_STRENGTH_BITS % 8); ++ ++ /* always reseed the DRNG with the current time stamp */ ++ entropy_buf->now = random_get_entropy(); ++ ++ /* ++ * Require at least 128 bits of entropy for any reseed. If the LRNG is ++ * operated SP800-90C compliant we want to comply with SP800-90A section ++ * 9.2 mandating that DRNG is reseeded with the security strength. ++ */ ++ if (state->lrng_fully_seeded && (lrng_avail_entropy() < req_ent)) { ++ entropy_buf->a_bits = entropy_buf->b_bits = 0; ++ entropy_buf->c_bits = entropy_buf->d_bits = 0; ++ goto wakeup; ++ } ++ ++ /* Concatenate the output of the entropy sources. */ ++ entropy_buf->b_bits = lrng_pcpu_pool_hash(entropy_buf->b, ++ requested_bits, ++ state->lrng_fully_seeded); ++ entropy_buf->c_bits = lrng_get_arch(entropy_buf->c, requested_bits); ++ entropy_buf->d_bits = lrng_get_jent(entropy_buf->d, requested_bits); ++ lrng_get_backtrack_aux(entropy_buf, requested_bits); ++ ++ /* allow external entropy provider to provide seed */ ++ lrng_state_exseed_allow_all(); ++ ++wakeup: ++ /* ++ * Shall we wake up user space writers? This location covers ++ * ensures that the user space provider does not dominate the internal ++ * noise sources since in case the first call of this function finds ++ * sufficient entropy in the entropy pool, it will not trigger the ++ * wakeup. This implies that when the next /dev/urandom read happens, ++ * the entropy pool is drained. ++ */ ++ lrng_writer_wakeup(); ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_health.c linux-5.15-lrng/drivers/char/lrng/lrng_health.c +--- linux-5.15/drivers/char/lrng/lrng_health.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_health.c 2021-11-29 12:38:11.793278870 +1100 +@@ -0,0 +1,410 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * Linux Random Number Generator (LRNG) Health Testing ++ * ++ * Copyright (C) 2019 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/fips.h> ++#include <linux/module.h> ++ ++#include "lrng_internal.h" ++ ++/* Stuck Test */ ++struct lrng_stuck_test { ++ u32 last_time; /* Stuck test: time of previous IRQ */ ++ u32 last_delta; /* Stuck test: delta of previous IRQ */ ++ u32 last_delta2; /* Stuck test: 2. time derivation of prev IRQ */ ++}; ++ ++/* Repetition Count Test */ ++struct lrng_rct { ++ atomic_t rct_count; /* Number of stuck values */ ++}; ++ ++/* Adaptive Proportion Test */ ++struct lrng_apt { ++ /* Data window size */ ++#define LRNG_APT_WINDOW_SIZE 512 ++ /* LSB of time stamp to process */ ++#define LRNG_APT_LSB 16 ++#define LRNG_APT_WORD_MASK (LRNG_APT_LSB - 1) ++ atomic_t apt_count; /* APT counter */ ++ atomic_t apt_base; /* APT base reference */ ++ ++ atomic_t apt_trigger; ++ bool apt_base_set; /* Is APT base set? */ ++}; ++ ++/* The health test code must operate lock-less */ ++struct lrng_health { ++ struct lrng_rct rct; ++ struct lrng_apt apt; ++ ++ bool health_test_enabled; ++ ++ /* SP800-90B startup health tests */ ++#define LRNG_SP80090B_STARTUP_SAMPLES 1024 ++#define LRNG_SP80090B_STARTUP_BLOCKS ((LRNG_SP80090B_STARTUP_SAMPLES + \ ++ LRNG_APT_WINDOW_SIZE - 1) / \ ++ LRNG_APT_WINDOW_SIZE) ++ bool sp80090b_startup_done; ++ atomic_t sp80090b_startup_blocks; ++}; ++ ++static struct lrng_health lrng_health = { ++ .rct.rct_count = ATOMIC_INIT(0), ++ ++ .apt.apt_count = ATOMIC_INIT(0), ++ .apt.apt_base = ATOMIC_INIT(-1), ++ .apt.apt_trigger = ATOMIC_INIT(LRNG_APT_WINDOW_SIZE), ++ .apt.apt_base_set = false, ++ ++ .health_test_enabled = true, ++ ++ .sp80090b_startup_blocks = ATOMIC_INIT(LRNG_SP80090B_STARTUP_BLOCKS), ++ .sp80090b_startup_done = false, ++}; ++ ++static DEFINE_PER_CPU(struct lrng_stuck_test, lrng_stuck_test); ++ ++static inline bool lrng_sp80090b_health_requested(void) ++{ ++ /* Health tests are only requested in FIPS mode */ ++ return fips_enabled; ++} ++ ++static inline bool lrng_sp80090b_health_enabled(void) ++{ ++ struct lrng_health *health = &lrng_health; ++ ++ return lrng_sp80090b_health_requested() && health->health_test_enabled; ++} ++ ++/*************************************************************************** ++ * SP800-90B Compliance ++ * ++ * If the Linux-RNG is booted into FIPS mode, the following interfaces ++ * provide an SP800-90B compliant noise source: ++ * ++ * * /dev/random ++ * * getrandom(2) ++ * * get_random_bytes when using it in conjunction with ++ * add_random_ready_callback ++ * ++ * All other interfaces, including /dev/urandom or get_random_bytes without ++ * the add_random_ready_callback cannot claim to use an SP800-90B compliant ++ * noise source. ++ ***************************************************************************/ ++ ++/* ++ * Perform SP800-90B startup testing ++ */ ++static inline void lrng_sp80090b_startup(struct lrng_health *health) ++{ ++ if (!health->sp80090b_startup_done && ++ atomic_dec_and_test(&health->sp80090b_startup_blocks)) { ++ struct entropy_buf eb; ++ ++ health->sp80090b_startup_done = true; ++ pr_info("SP800-90B startup health tests completed\n"); ++ memset(&eb, 0, sizeof(eb)); ++ lrng_init_ops(&eb); ++ ++ /* ++ * Force a reseed of DRNGs to ensure they are seeded with ++ * entropy that passed the SP800-90B health tests. ++ * As the DRNG always will reseed before generating ++ * random numbers, it does not need a reseed trigger. ++ */ ++ lrng_drng_force_reseed(); ++ } ++} ++ ++/* ++ * Handle failure of SP800-90B startup testing ++ */ ++static inline void lrng_sp80090b_startup_failure(struct lrng_health *health) ++{ ++ /* Reset of LRNG and its entropy - NOTE: we are in atomic context */ ++ lrng_reset(); ++ ++ /* ++ * Reset the SP800-90B startup test. ++ * ++ * NOTE SP800-90B section 4.3 bullet 4 does not specify what ++ * exactly is to be done in case of failure! Thus, we do what ++ * makes sense, i.e. restarting the health test and thus gating ++ * the output function of /dev/random and getrandom(2). ++ */ ++ atomic_set(&health->sp80090b_startup_blocks, ++ LRNG_SP80090B_STARTUP_BLOCKS); ++} ++ ++/* ++ * Handle failure of SP800-90B runtime testing ++ */ ++static inline void lrng_sp80090b_runtime_failure(struct lrng_health *health) ++{ ++ lrng_sp80090b_startup_failure(health); ++ health->sp80090b_startup_done = false; ++} ++ ++static inline void lrng_sp80090b_failure(struct lrng_health *health) ++{ ++ if (health->sp80090b_startup_done) { ++ pr_err("SP800-90B runtime health test failure - invalidating all existing entropy and initiate SP800-90B startup\n"); ++ lrng_sp80090b_runtime_failure(health); ++ } else { ++ pr_err("SP800-90B startup test failure - resetting\n"); ++ lrng_sp80090b_startup_failure(health); ++ } ++} ++ ++/* ++ * Is the SP800-90B startup testing complete? ++ * ++ * This function is called by the LRNG to determine whether to unblock ++ * a certain user interface. Therefore, only the potentially blocking ++ * user interfaces are considered SP800-90B compliant. ++ */ ++bool lrng_sp80090b_startup_complete(void) ++{ ++ struct lrng_health *health = &lrng_health; ++ ++ return (lrng_sp80090b_health_enabled()) ? health->sp80090b_startup_done: ++ true; ++} ++ ++bool lrng_sp80090b_compliant(void) ++{ ++ struct lrng_health *health = &lrng_health; ++ ++ return lrng_sp80090b_health_enabled() && health->sp80090b_startup_done; ++} ++ ++/*************************************************************************** ++ * Adaptive Proportion Test ++ * ++ * This test complies with SP800-90B section 4.4.2. ++ ***************************************************************************/ ++ ++/* ++ * Reset the APT counter ++ * ++ * @health [in] Reference to health state ++ */ ++static inline void lrng_apt_reset(struct lrng_health *health, ++ unsigned int time_masked) ++{ ++ struct lrng_apt *apt = &health->apt; ++ ++ pr_debug("APT value %d for base %d\n", ++ atomic_read(&apt->apt_count), atomic_read(&apt->apt_base)); ++ ++ /* Reset APT */ ++ atomic_set(&apt->apt_count, 0); ++ atomic_set(&apt->apt_base, time_masked); ++} ++ ++static inline void lrng_apt_restart(struct lrng_health *health) ++{ ++ struct lrng_apt *apt = &health->apt; ++ ++ atomic_set(&apt->apt_trigger, LRNG_APT_WINDOW_SIZE); ++} ++ ++/* ++ * Insert a new entropy event into APT ++ * ++ * This function does is void as it does not decide about the fate of a time ++ * stamp. An APT failure can only happen at the same time of a stuck test ++ * failure. Thus, the stuck failure will already decide how the time stamp ++ * is handled. ++ * ++ * @health [in] Reference to health state ++ * @now_time [in] Time stamp to process ++ */ ++static inline void lrng_apt_insert(struct lrng_health *health, ++ unsigned int now_time) ++{ ++ struct lrng_apt *apt = &health->apt; ++ ++ if (!lrng_sp80090b_health_requested()) ++ return; ++ ++ now_time &= LRNG_APT_WORD_MASK; ++ ++ /* Initialization of APT */ ++ if (!apt->apt_base_set) { ++ atomic_set(&apt->apt_base, now_time); ++ apt->apt_base_set = true; ++ return; ++ } ++ ++ if (now_time == (unsigned int)atomic_read(&apt->apt_base)) { ++ u32 apt_val = (u32)atomic_inc_return_relaxed(&apt->apt_count); ++ ++ if (apt_val >= CONFIG_LRNG_APT_CUTOFF) ++ lrng_sp80090b_failure(health); ++ } ++ ++ if (atomic_dec_and_test(&apt->apt_trigger)) { ++ lrng_apt_restart(health); ++ lrng_apt_reset(health, now_time); ++ lrng_sp80090b_startup(health); ++ } ++} ++ ++/*************************************************************************** ++ * Repetition Count Test ++ * ++ * The LRNG uses an enhanced version of the Repetition Count Test ++ * (RCT) specified in SP800-90B section 4.4.1. Instead of counting identical ++ * back-to-back values, the input to the RCT is the counting of the stuck ++ * values while filling the entropy pool. ++ * ++ * The RCT is applied with an alpha of 2^-30 compliant to FIPS 140-2 IG 9.8. ++ * ++ * During the counting operation, the LRNG always calculates the RCT ++ * cut-off value of C. If that value exceeds the allowed cut-off value, ++ * the LRNG will invalidate all entropy for the entropy pool which implies ++ * that no data can be extracted from the entropy pool unless new entropy ++ * is received. ++ ***************************************************************************/ ++ ++/* ++ * Hot code path - Insert data for Repetition Count Test ++ * ++ * @health: Reference to health information ++ * @stuck: Decision of stuck test ++ */ ++static inline void lrng_rct(struct lrng_health *health, int stuck) ++{ ++ struct lrng_rct *rct = &health->rct; ++ ++ if (!lrng_sp80090b_health_requested()) ++ return; ++ ++ if (stuck) { ++ u32 rct_count = atomic_add_return_relaxed(1, &rct->rct_count); ++ ++ pr_debug("RCT count: %u\n", rct_count); ++ ++ /* ++ * The cutoff value is based on the following consideration: ++ * alpha = 2^-30 as recommended in FIPS 140-2 IG 9.8. ++ * In addition, we imply an entropy value H of 1 bit as this ++ * is the minimum entropy required to provide full entropy. ++ * ++ * Note, rct_count (which equals to value B in the ++ * pseudo code of SP800-90B section 4.4.1) starts with zero. ++ * Hence we need to subtract one from the cutoff value as ++ * calculated following SP800-90B. ++ */ ++ if (rct_count >= CONFIG_LRNG_RCT_CUTOFF) { ++ atomic_set(&rct->rct_count, 0); ++ ++ /* ++ * APT must start anew as we consider all previously ++ * recorded data to contain no entropy. ++ */ ++ lrng_apt_restart(health); ++ ++ lrng_sp80090b_failure(health); ++ } ++ } else { ++ atomic_set(&rct->rct_count, 0); ++ } ++} ++ ++/*************************************************************************** ++ * Stuck Test ++ * ++ * Checking the: ++ * 1st derivative of the event occurrence (time delta) ++ * 2nd derivative of the event occurrence (delta of time deltas) ++ * 3rd derivative of the event occurrence (delta of delta of time deltas) ++ * ++ * All values must always be non-zero. The stuck test is only valid disabled if ++ * high-resolution time stamps are identified after initialization. ++ ***************************************************************************/ ++ ++static inline u32 lrng_delta(u32 prev, u32 next) ++{ ++ /* ++ * Note that this (unsigned) subtraction does yield the correct value ++ * in the wraparound-case, i.e. when next < prev. ++ */ ++ return (next - prev); ++} ++ ++/* ++ * Hot code path ++ * ++ * @health: Reference to health information ++ * @now: Event time ++ * @return: 0 event occurrence not stuck (good time stamp) ++ * != 0 event occurrence stuck (reject time stamp) ++ */ ++static inline int lrng_irq_stuck(struct lrng_stuck_test *stuck, u32 now_time) ++{ ++ u32 delta = lrng_delta(stuck->last_time, now_time); ++ u32 delta2 = lrng_delta(stuck->last_delta, delta); ++ u32 delta3 = lrng_delta(stuck->last_delta2, delta2); ++ ++ stuck->last_time = now_time; ++ stuck->last_delta = delta; ++ stuck->last_delta2 = delta2; ++ ++ if (!delta || !delta2 || !delta3) ++ return 1; ++ ++ return 0; ++} ++ ++/*************************************************************************** ++ * Health test interfaces ++ ***************************************************************************/ ++ ++/* ++ * Disable all health tests ++ */ ++void lrng_health_disable(void) ++{ ++ struct lrng_health *health = &lrng_health; ++ ++ health->health_test_enabled = false; ++ ++ if (lrng_sp80090b_health_requested()) ++ pr_warn("SP800-90B compliance requested but the Linux RNG is NOT SP800-90B compliant\n"); ++} ++ ++/* ++ * Hot code path - Perform health test on time stamp received from an event ++ * ++ * @now_time Time stamp ++ */ ++enum lrng_health_res lrng_health_test(u32 now_time) ++{ ++ struct lrng_health *health = &lrng_health; ++ struct lrng_stuck_test *stuck_test = this_cpu_ptr(&lrng_stuck_test); ++ int stuck; ++ ++ if (!health->health_test_enabled) ++ return lrng_health_pass; ++ ++ lrng_apt_insert(health, now_time); ++ ++ stuck = lrng_irq_stuck(stuck_test, now_time); ++ lrng_rct(health, stuck); ++ if (stuck) { ++ /* SP800-90B disallows using a failing health test time stamp */ ++ return lrng_sp80090b_health_requested() ? ++ lrng_health_fail_drop : lrng_health_fail_use; ++ } ++ ++ return lrng_health_pass; ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_interfaces.c linux-5.15-lrng/drivers/char/lrng/lrng_interfaces.c +--- linux-5.15/drivers/char/lrng/lrng_interfaces.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_interfaces.c 2021-11-29 12:37:03.083279132 +1100 +@@ -0,0 +1,654 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG User and kernel space interfaces ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/freezer.h> ++#include <linux/fs.h> ++#include <linux/genhd.h> ++#include <linux/hw_random.h> ++#include <linux/kthread.h> ++#include <linux/poll.h> ++#include <linux/preempt.h> ++#include <linux/random.h> ++#include <linux/slab.h> ++#include <linux/syscalls.h> ++#include <linux/timex.h> ++ ++#define CREATE_TRACE_POINTS ++#include <trace/events/random.h> ++ ++#include "lrng_internal.h" ++ ++/* ++ * If the entropy count falls under this number of bits, then we ++ * should wake up processes which are selecting or polling on write ++ * access to /dev/random. ++ */ ++u32 lrng_write_wakeup_bits = (LRNG_WRITE_WAKEUP_ENTROPY << 3); ++ ++static LIST_HEAD(lrng_ready_list); ++static DEFINE_SPINLOCK(lrng_ready_list_lock); ++ ++static DECLARE_WAIT_QUEUE_HEAD(lrng_write_wait); ++static DECLARE_WAIT_QUEUE_HEAD(lrng_init_wait); ++static struct fasync_struct *fasync; ++ ++/********************************** Helper ***********************************/ ++ ++/* Is the DRNG seed level too low? */ ++static inline bool lrng_need_entropy(void) ++{ ++ return (lrng_avail_aux_entropy() < lrng_write_wakeup_bits); ++} ++ ++void lrng_writer_wakeup(void) ++{ ++ if (lrng_need_entropy() && wq_has_sleeper(&lrng_write_wait)) { ++ wake_up_interruptible(&lrng_write_wait); ++ kill_fasync(&fasync, SIGIO, POLL_OUT); ++ } ++} ++ ++void lrng_init_wakeup(void) ++{ ++ wake_up_all(&lrng_init_wait); ++ kill_fasync(&fasync, SIGIO, POLL_IN); ++} ++ ++/** ++ * lrng_process_ready_list() - Ping all kernel internal callers waiting until ++ * the DRNG is completely initialized to inform that the DRNG reached that ++ * seed level. ++ * ++ * When the SP800-90B testing is enabled, the ping only happens if the SP800-90B ++ * startup health tests are completed. This implies that kernel internal ++ * callers always have an SP800-90B compliant noise source when being ++ * pinged. ++ */ ++void lrng_process_ready_list(void) ++{ ++ unsigned long flags; ++ struct random_ready_callback *rdy, *tmp; ++ ++ if (!lrng_state_operational()) ++ return; ++ ++ spin_lock_irqsave(&lrng_ready_list_lock, flags); ++ list_for_each_entry_safe(rdy, tmp, &lrng_ready_list, list) { ++ struct module *owner = rdy->owner; ++ ++ list_del_init(&rdy->list); ++ rdy->func(rdy); ++ module_put(owner); ++ } ++ spin_unlock_irqrestore(&lrng_ready_list_lock, flags); ++} ++ ++void lrng_debug_report_seedlevel(const char *name) ++{ ++#ifdef CONFIG_WARN_ALL_UNSEEDED_RANDOM ++ static void *previous = NULL; ++ void *caller = (void *) _RET_IP_; ++ ++ if (READ_ONCE(previous) == caller) ++ return; ++ ++ if (!lrng_state_min_seeded()) ++ pr_notice("%pS %s called without reaching minimally seeded level (available entropy %u)\n", ++ caller, name, lrng_avail_entropy()); ++ ++ WRITE_ONCE(previous, caller); ++#endif ++} ++ ++/************************ LRNG kernel input interfaces ************************/ ++ ++/* ++ * add_hwgenerator_randomness() - Interface for in-kernel drivers of true ++ * hardware RNGs. ++ * ++ * Those devices may produce endless random bits and will be throttled ++ * when our pool is full. ++ * ++ * @buffer: buffer holding the entropic data from HW noise sources to be used to ++ * insert into entropy pool. ++ * @count: length of buffer ++ * @entropy_bits: amount of entropy in buffer (value is in bits) ++ */ ++void add_hwgenerator_randomness(const char *buffer, size_t count, ++ size_t entropy_bits) ++{ ++ /* ++ * Suspend writing if we are fully loaded with entropy. ++ * We'll be woken up again once below lrng_write_wakeup_thresh, ++ * or when the calling thread is about to terminate. ++ */ ++ wait_event_interruptible(lrng_write_wait, ++ lrng_need_entropy() || ++ lrng_state_exseed_allow(lrng_noise_source_hw) || ++ kthread_should_stop()); ++ lrng_state_exseed_set(lrng_noise_source_hw, false); ++ lrng_pool_insert_aux(buffer, count, entropy_bits); ++} ++EXPORT_SYMBOL_GPL(add_hwgenerator_randomness); ++ ++/* ++ * add_bootloader_randomness() - Handle random seed passed by bootloader. ++ * ++ * If the seed is trustworthy, it would be regarded as hardware RNGs. Otherwise ++ * it would be regarded as device data. ++ * The decision is controlled by CONFIG_RANDOM_TRUST_BOOTLOADER. ++ * ++ * @buf: buffer holding the entropic data from HW noise sources to be used to ++ * insert into entropy pool. ++ * @size: length of buffer ++ */ ++void add_bootloader_randomness(const void *buf, unsigned int size) ++{ ++ lrng_pool_insert_aux(buf, size, ++ IS_ENABLED(CONFIG_RANDOM_TRUST_BOOTLOADER) ? ++ size * 8 : 0); ++} ++EXPORT_SYMBOL_GPL(add_bootloader_randomness); ++ ++/* ++ * Callback for HID layer -- use the HID event values to stir the entropy pool ++ */ ++void add_input_randomness(unsigned int type, unsigned int code, ++ unsigned int value) ++{ ++ static unsigned char last_value; ++ ++ /* ignore autorepeat and the like */ ++ if (value == last_value) ++ return; ++ ++ last_value = value; ++ ++ lrng_pcpu_array_add_u32((type << 4) ^ code ^ (code >> 4) ^ value); ++} ++EXPORT_SYMBOL_GPL(add_input_randomness); ++ ++/* ++ * add_device_randomness() - Add device- or boot-specific data to the entropy ++ * pool to help initialize it. ++ * ++ * None of this adds any entropy; it is meant to avoid the problem of ++ * the entropy pool having similar initial state across largely ++ * identical devices. ++ * ++ * @buf: buffer holding the entropic data from HW noise sources to be used to ++ * insert into entropy pool. ++ * @size: length of buffer ++ */ ++void add_device_randomness(const void *buf, unsigned int size) ++{ ++ lrng_pool_insert_aux((u8 *)buf, size, 0); ++} ++EXPORT_SYMBOL(add_device_randomness); ++ ++#ifdef CONFIG_BLOCK ++void rand_initialize_disk(struct gendisk *disk) { } ++void add_disk_randomness(struct gendisk *disk) { } ++EXPORT_SYMBOL(add_disk_randomness); ++#endif ++ ++#ifndef CONFIG_LRNG_IRQ ++void add_interrupt_randomness(int irq, int irq_flg) { } ++EXPORT_SYMBOL(add_interrupt_randomness); ++#endif ++ ++/* ++ * del_random_ready_callback() - Delete a previously registered readiness ++ * callback function. ++ * ++ * @rdy: callback definition that was registered initially ++ */ ++void del_random_ready_callback(struct random_ready_callback *rdy) ++{ ++ unsigned long flags; ++ struct module *owner = NULL; ++ ++ spin_lock_irqsave(&lrng_ready_list_lock, flags); ++ if (!list_empty(&rdy->list)) { ++ list_del_init(&rdy->list); ++ owner = rdy->owner; ++ } ++ spin_unlock_irqrestore(&lrng_ready_list_lock, flags); ++ ++ module_put(owner); ++} ++EXPORT_SYMBOL(del_random_ready_callback); ++ ++/* ++ * add_random_ready_callback() - Add a callback function that will be invoked ++ * when the DRNG is fully initialized and seeded. ++ * ++ * @rdy: callback definition to be invoked when the LRNG is seeded ++ * ++ * Return: ++ * * 0 if callback is successfully added ++ * * -EALREADY if pool is already initialised (callback not called) ++ * * -ENOENT if module for callback is not alive ++ */ ++int add_random_ready_callback(struct random_ready_callback *rdy) ++{ ++ struct module *owner; ++ unsigned long flags; ++ int err = -EALREADY; ++ ++ if (likely(lrng_state_operational())) ++ return err; ++ ++ owner = rdy->owner; ++ if (!try_module_get(owner)) ++ return -ENOENT; ++ ++ spin_lock_irqsave(&lrng_ready_list_lock, flags); ++ if (lrng_state_operational()) ++ goto out; ++ ++ owner = NULL; ++ ++ list_add(&rdy->list, &lrng_ready_list); ++ err = 0; ++ ++out: ++ spin_unlock_irqrestore(&lrng_ready_list_lock, flags); ++ ++ module_put(owner); ++ ++ return err; ++} ++EXPORT_SYMBOL(add_random_ready_callback); ++ ++/*********************** LRNG kernel output interfaces ************************/ ++ ++/* ++ * get_random_bytes() - Provider of cryptographic strong random numbers for ++ * kernel-internal usage. ++ * ++ * This function is appropriate for all in-kernel use cases. However, ++ * it will always use the ChaCha20 DRNG. ++ * ++ * @buf: buffer to store the random bytes ++ * @nbytes: size of the buffer ++ */ ++void get_random_bytes(void *buf, int nbytes) ++{ ++ lrng_drng_get_atomic((u8 *)buf, (u32)nbytes); ++ lrng_debug_report_seedlevel("get_random_bytes"); ++} ++EXPORT_SYMBOL(get_random_bytes); ++ ++/* ++ * get_random_bytes_full() - Provider of cryptographic strong random numbers ++ * for kernel-internal usage. ++ * ++ * This function is appropriate only for non-atomic use cases as this ++ * function may sleep. Though, it provides access to the full functionality ++ * of LRNG including the switchable DRNG support, that may support other ++ * DRNGs such as the SP800-90A DRBG. ++ * ++ * @buf: buffer to store the random bytes ++ * @nbytes: size of the buffer ++ */ ++void get_random_bytes_full(void *buf, int nbytes) ++{ ++ lrng_drng_get_sleep((u8 *)buf, (u32)nbytes); ++ lrng_debug_report_seedlevel("get_random_bytes_full"); ++} ++EXPORT_SYMBOL(get_random_bytes_full); ++ ++/* ++ * wait_for_random_bytes() - Wait for the LRNG to be seeded and thus ++ * guaranteed to supply cryptographically secure random numbers. ++ * ++ * This applies to: the /dev/urandom device, the get_random_bytes function, ++ * and the get_random_{u32,u64,int,long} family of functions. Using any of ++ * these functions without first calling this function forfeits the guarantee ++ * of security. ++ * ++ * Return: ++ * * 0 if the LRNG has been seeded. ++ * * -ERESTARTSYS if the function was interrupted by a signal. ++ */ ++int wait_for_random_bytes(void) ++{ ++ if (likely(lrng_state_min_seeded())) ++ return 0; ++ return wait_event_interruptible(lrng_init_wait, ++ lrng_state_min_seeded()); ++} ++EXPORT_SYMBOL(wait_for_random_bytes); ++ ++/* ++ * get_random_bytes_arch() - This function will use the architecture-specific ++ * hardware random number generator if it is available. ++ * ++ * The arch-specific hw RNG will almost certainly be faster than what we can ++ * do in software, but it is impossible to verify that it is implemented ++ * securely (as opposed, to, say, the AES encryption of a sequence number using ++ * a key known by the NSA). So it's useful if we need the speed, but only if ++ * we're willing to trust the hardware manufacturer not to have put in a back ++ * door. ++ * ++ * @buf: buffer allocated by caller to store the random data in ++ * @nbytes: length of outbuf ++ * ++ * Return: number of bytes filled in. ++ */ ++int __must_check get_random_bytes_arch(void *buf, int nbytes) ++{ ++ u8 *p = buf; ++ ++ while (nbytes) { ++ unsigned long v; ++ int chunk = min_t(int, nbytes, sizeof(unsigned long)); ++ ++ if (!arch_get_random_long(&v)) ++ break; ++ ++ memcpy(p, &v, chunk); ++ p += chunk; ++ nbytes -= chunk; ++ } ++ ++ if (nbytes) ++ lrng_drng_get_atomic((u8 *)p, (u32)nbytes); ++ ++ return nbytes; ++} ++EXPORT_SYMBOL(get_random_bytes_arch); ++ ++/* ++ * Returns whether or not the LRNG has been seeded. ++ * ++ * Returns: true if the urandom pool has been seeded. ++ * false if the urandom pool has not been seeded. ++ */ ++bool rng_is_initialized(void) ++{ ++ return lrng_state_operational(); ++} ++EXPORT_SYMBOL(rng_is_initialized); ++ ++/************************ LRNG user output interfaces *************************/ ++ ++static ssize_t lrng_read_common(char __user *buf, size_t nbytes) ++{ ++ ssize_t ret = 0; ++ u8 tmpbuf[LRNG_DRNG_BLOCKSIZE] __aligned(LRNG_KCAPI_ALIGN); ++ u8 *tmp_large = NULL, *tmp = tmpbuf; ++ u32 tmplen = sizeof(tmpbuf); ++ ++ if (nbytes == 0) ++ return 0; ++ ++ /* ++ * Satisfy large read requests -- as the common case are smaller ++ * request sizes, such as 16 or 32 bytes, avoid a kmalloc overhead for ++ * those by using the stack variable of tmpbuf. ++ */ ++ if (!CONFIG_BASE_SMALL && (nbytes > sizeof(tmpbuf))) { ++ tmplen = min_t(u32, nbytes, LRNG_DRNG_MAX_REQSIZE); ++ tmp_large = kmalloc(tmplen + LRNG_KCAPI_ALIGN, GFP_KERNEL); ++ if (!tmp_large) ++ tmplen = sizeof(tmpbuf); ++ else ++ tmp = PTR_ALIGN(tmp_large, LRNG_KCAPI_ALIGN); ++ } ++ ++ while (nbytes) { ++ u32 todo = min_t(u32, nbytes, tmplen); ++ int rc = 0; ++ ++ /* Reschedule if we received a large request. */ ++ if ((tmp_large) && need_resched()) { ++ if (signal_pending(current)) { ++ if (ret == 0) ++ ret = -ERESTARTSYS; ++ break; ++ } ++ schedule(); ++ } ++ ++ rc = lrng_drng_get_sleep(tmp, todo); ++ if (rc <= 0) { ++ if (rc < 0) ++ ret = rc; ++ break; ++ } ++ if (copy_to_user(buf, tmp, rc)) { ++ ret = -EFAULT; ++ break; ++ } ++ ++ nbytes -= rc; ++ buf += rc; ++ ret += rc; ++ } ++ ++ /* Wipe data just returned from memory */ ++ if (tmp_large) ++ kfree_sensitive(tmp_large); ++ else ++ memzero_explicit(tmpbuf, sizeof(tmpbuf)); ++ ++ return ret; ++} ++ ++static ssize_t ++lrng_read_common_block(int nonblock, char __user *buf, size_t nbytes) ++{ ++ if (nbytes == 0) ++ return 0; ++ ++ if (unlikely(!lrng_state_operational())) { ++ int ret; ++ ++ if (nonblock) ++ return -EAGAIN; ++ ++ ret = wait_event_interruptible(lrng_init_wait, ++ lrng_state_operational()); ++ if (unlikely(ret)) ++ return ret; ++ } ++ ++ return lrng_read_common(buf, nbytes); ++} ++ ++static ssize_t lrng_drng_read_block(struct file *file, char __user *buf, ++ size_t nbytes, loff_t *ppos) ++{ ++ return lrng_read_common_block(file->f_flags & O_NONBLOCK, buf, nbytes); ++} ++ ++static __poll_t lrng_random_poll(struct file *file, poll_table *wait) ++{ ++ __poll_t mask; ++ ++ poll_wait(file, &lrng_init_wait, wait); ++ poll_wait(file, &lrng_write_wait, wait); ++ mask = 0; ++ if (lrng_state_operational()) ++ mask |= EPOLLIN | EPOLLRDNORM; ++ if (lrng_need_entropy() || ++ lrng_state_exseed_allow(lrng_noise_source_user)) { ++ lrng_state_exseed_set(lrng_noise_source_user, false); ++ mask |= EPOLLOUT | EPOLLWRNORM; ++ } ++ return mask; ++} ++ ++static ssize_t lrng_drng_write_common(const char __user *buffer, size_t count, ++ u32 entropy_bits) ++{ ++ ssize_t ret = 0; ++ u8 buf[64] __aligned(LRNG_KCAPI_ALIGN); ++ const char __user *p = buffer; ++ u32 orig_entropy_bits = entropy_bits; ++ ++ if (!lrng_get_available()) ++ return -EAGAIN; ++ ++ count = min_t(size_t, count, INT_MAX); ++ while (count > 0) { ++ size_t bytes = min_t(size_t, count, sizeof(buf)); ++ u32 ent = min_t(u32, bytes<<3, entropy_bits); ++ ++ if (copy_from_user(&buf, p, bytes)) ++ return -EFAULT; ++ /* Inject data into entropy pool */ ++ lrng_pool_insert_aux(buf, bytes, ent); ++ ++ count -= bytes; ++ p += bytes; ++ ret += bytes; ++ entropy_bits -= ent; ++ ++ cond_resched(); ++ } ++ ++ /* Force reseed of DRNG during next data request. */ ++ if (!orig_entropy_bits) ++ lrng_drng_force_reseed(); ++ ++ return ret; ++} ++ ++static ssize_t lrng_drng_read(struct file *file, char __user *buf, ++ size_t nbytes, loff_t *ppos) ++{ ++ if (!lrng_state_min_seeded()) ++ pr_notice_ratelimited("%s - use of insufficiently seeded DRNG (%zu bytes read)\n", ++ current->comm, nbytes); ++ else if (!lrng_state_operational()) ++ pr_debug_ratelimited("%s - use of not fully seeded DRNG (%zu bytes read)\n", ++ current->comm, nbytes); ++ ++ return lrng_read_common(buf, nbytes); ++} ++ ++static ssize_t lrng_drng_write(struct file *file, const char __user *buffer, ++ size_t count, loff_t *ppos) ++{ ++ return lrng_drng_write_common(buffer, count, 0); ++} ++ ++static long lrng_ioctl(struct file *f, unsigned int cmd, unsigned long arg) ++{ ++ u32 digestsize_bits; ++ int size, ent_count_bits; ++ int __user *p = (int __user *)arg; ++ ++ switch (cmd) { ++ case RNDGETENTCNT: ++ ent_count_bits = lrng_avail_entropy(); ++ if (put_user(ent_count_bits, p)) ++ return -EFAULT; ++ return 0; ++ case RNDADDTOENTCNT: ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (get_user(ent_count_bits, p)) ++ return -EFAULT; ++ ent_count_bits = (int)lrng_avail_aux_entropy() + ent_count_bits; ++ if (ent_count_bits < 0) ++ ent_count_bits = 0; ++ digestsize_bits = lrng_get_digestsize(); ++ if (ent_count_bits > digestsize_bits) ++ ent_count_bits = digestsize_bits; ++ lrng_pool_set_entropy(ent_count_bits); ++ return 0; ++ case RNDADDENTROPY: ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (get_user(ent_count_bits, p++)) ++ return -EFAULT; ++ if (ent_count_bits < 0) ++ return -EINVAL; ++ if (get_user(size, p++)) ++ return -EFAULT; ++ if (size < 0) ++ return -EINVAL; ++ /* there cannot be more entropy than data */ ++ ent_count_bits = min(ent_count_bits, size<<3); ++ return lrng_drng_write_common((const char __user *)p, size, ++ ent_count_bits); ++ case RNDZAPENTCNT: ++ case RNDCLEARPOOL: ++ /* Clear the entropy pool counter. */ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ lrng_pool_set_entropy(0); ++ return 0; ++ case RNDRESEEDCRNG: ++ /* ++ * We leave the capability check here since it is present ++ * in the upstream's RNG implementation. Yet, user space ++ * can trigger a reseed as easy as writing into /dev/random ++ * or /dev/urandom where no privilege is needed. ++ */ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ /* Force a reseed of all DRNGs */ ++ lrng_drng_force_reseed(); ++ return 0; ++ default: ++ return -EINVAL; ++ } ++} ++ ++static int lrng_fasync(int fd, struct file *filp, int on) ++{ ++ return fasync_helper(fd, filp, on, &fasync); ++} ++ ++const struct file_operations random_fops = { ++ .read = lrng_drng_read_block, ++ .write = lrng_drng_write, ++ .poll = lrng_random_poll, ++ .unlocked_ioctl = lrng_ioctl, ++ .compat_ioctl = compat_ptr_ioctl, ++ .fasync = lrng_fasync, ++ .llseek = noop_llseek, ++}; ++ ++const struct file_operations urandom_fops = { ++ .read = lrng_drng_read, ++ .write = lrng_drng_write, ++ .unlocked_ioctl = lrng_ioctl, ++ .compat_ioctl = compat_ptr_ioctl, ++ .fasync = lrng_fasync, ++ .llseek = noop_llseek, ++}; ++ ++SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count, ++ unsigned int, flags) ++{ ++ if (flags & ~(GRND_NONBLOCK|GRND_RANDOM|GRND_INSECURE)) ++ return -EINVAL; ++ ++ /* ++ * Requesting insecure and blocking randomness at the same time makes ++ * no sense. ++ */ ++ if ((flags & ++ (GRND_INSECURE|GRND_RANDOM)) == (GRND_INSECURE|GRND_RANDOM)) ++ return -EINVAL; ++ ++ if (count > INT_MAX) ++ count = INT_MAX; ++ ++ if (flags & GRND_INSECURE) ++ return lrng_drng_read(NULL, buf, count, NULL); ++ ++ return lrng_read_common_block(flags & GRND_NONBLOCK, buf, count); ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_internal.h linux-5.15-lrng/drivers/char/lrng/lrng_internal.h +--- linux-5.15/drivers/char/lrng/lrng_internal.h 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_internal.h 2021-11-29 12:36:52.113279174 +1100 +@@ -0,0 +1,485 @@ ++/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ ++/* ++ * Copyright (C) 2018 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#ifndef _LRNG_INTERNAL_H ++#define _LRNG_INTERNAL_H ++ ++#include <crypto/sha1.h> ++#include <crypto/sha2.h> ++#include <linux/init.h> ++#include <linux/module.h> ++#include <linux/mutex.h> ++#include <linux/rwlock.h> ++#include <linux/slab.h> ++#include <linux/spinlock.h> ++ ++/*************************** General LRNG parameter ***************************/ ++ ++/* Security strength of LRNG -- this must match DRNG security strength */ ++#define LRNG_DRNG_SECURITY_STRENGTH_BYTES 32 ++#define LRNG_DRNG_SECURITY_STRENGTH_BITS (LRNG_DRNG_SECURITY_STRENGTH_BYTES * 8) ++#define LRNG_DRNG_BLOCKSIZE 64 /* Maximum of DRNG block sizes */ ++#define LRNG_DRNG_INIT_SEED_SIZE_BITS (LRNG_DRNG_SECURITY_STRENGTH_BITS + \ ++ CONFIG_LRNG_SEED_BUFFER_INIT_ADD_BITS) ++#define LRNG_DRNG_INIT_SEED_SIZE_BYTES (LRNG_DRNG_INIT_SEED_SIZE_BITS >> 3) ++ ++/* ++ * SP800-90A defines a maximum request size of 1<<16 bytes. The given value is ++ * considered a safer margin. ++ * ++ * This value is allowed to be changed. ++ */ ++#define LRNG_DRNG_MAX_REQSIZE (1<<12) ++ ++/* ++ * SP800-90A defines a maximum number of requests between reseeds of 2^48. ++ * The given value is considered a much safer margin, balancing requests for ++ * frequent reseeds with the need to conserve entropy. This value MUST NOT be ++ * larger than INT_MAX because it is used in an atomic_t. ++ * ++ * This value is allowed to be changed. ++ */ ++#define LRNG_DRNG_RESEED_THRESH (1<<20) ++ ++/* ++ * Maximum DRNG generation operations without reseed having full entropy ++ * This value defines the absolute maximum value of DRNG generation operations ++ * without a reseed holding full entropy. LRNG_DRNG_RESEED_THRESH is the ++ * threshold when a new reseed is attempted. But it is possible that this fails ++ * to deliver full entropy. In this case the DRNG will continue to provide data ++ * even though it was not reseeded with full entropy. To avoid in the extreme ++ * case that no reseed is performed for too long, this threshold is enforced. ++ * If that absolute low value is reached, the LRNG is marked as not operational. ++ * ++ * This value is allowed to be changed. ++ */ ++#define LRNG_DRNG_MAX_WITHOUT_RESEED (1<<30) ++ ++/* ++ * Min required seed entropy is 128 bits covering the minimum entropy ++ * requirement of SP800-131A and the German BSI's TR02102. ++ * ++ * This value is allowed to be changed. ++ */ ++#define LRNG_FULL_SEED_ENTROPY_BITS LRNG_DRNG_SECURITY_STRENGTH_BITS ++#define LRNG_MIN_SEED_ENTROPY_BITS 128 ++#define LRNG_INIT_ENTROPY_BITS 32 ++ ++/* ++ * Wakeup value ++ * ++ * This value is allowed to be changed but must not be larger than the ++ * digest size of the hash operation used update the aux_pool. ++ */ ++#ifdef CONFIG_CRYPTO_LIB_SHA256 ++# define LRNG_ATOMIC_DIGEST_SIZE SHA256_DIGEST_SIZE ++#else ++# define LRNG_ATOMIC_DIGEST_SIZE SHA1_DIGEST_SIZE ++#endif ++#define LRNG_WRITE_WAKEUP_ENTROPY LRNG_ATOMIC_DIGEST_SIZE ++ ++/* ++ * If the switching support is configured, we must provide support up to ++ * the largest digest size. Without switching support, we know it is only ++ * the built-in digest size. ++ */ ++#ifdef CONFIG_LRNG_DRNG_SWITCH ++# define LRNG_MAX_DIGESTSIZE 64 ++#else ++# define LRNG_MAX_DIGESTSIZE LRNG_ATOMIC_DIGEST_SIZE ++#endif ++ ++/* ++ * Oversampling factor of IRQ events to obtain ++ * LRNG_DRNG_SECURITY_STRENGTH_BYTES. This factor is used when a ++ * high-resolution time stamp is not available. In this case, jiffies and ++ * register contents are used to fill the entropy pool. These noise sources ++ * are much less entropic than the high-resolution timer. The entropy content ++ * is the entropy content assumed with LRNG_IRQ_ENTROPY_BITS divided by ++ * LRNG_IRQ_OVERSAMPLING_FACTOR. ++ * ++ * This value is allowed to be changed. ++ */ ++#define LRNG_IRQ_OVERSAMPLING_FACTOR 10 ++ ++/* Alignmask that is intended to be identical to CRYPTO_MINALIGN */ ++#define LRNG_KCAPI_ALIGN ARCH_KMALLOC_MINALIGN ++ ++/* ++ * This definition must provide a buffer that is equal to SHASH_DESC_ON_STACK ++ * as it will be casted into a struct shash_desc. ++ */ ++#define LRNG_POOL_SIZE (sizeof(struct shash_desc) + HASH_MAX_DESCSIZE) ++ ++/************************ Default DRNG implementation *************************/ ++ ++extern struct chacha20_state chacha20; ++extern const struct lrng_crypto_cb lrng_cc20_crypto_cb; ++void lrng_cc20_init_state(struct chacha20_state *state); ++ ++/********************************** /proc *************************************/ ++ ++#ifdef CONFIG_SYSCTL ++void lrng_pool_inc_numa_node(void); ++void lrng_proc_update_max_write_thresh(u32 new_digestsize); ++#else ++static inline void lrng_pool_inc_numa_node(void) { } ++static inline void lrng_proc_update_max_write_thresh(u32 new_digestsize) { } ++#endif ++ ++/****************************** LRNG interfaces *******************************/ ++ ++extern u32 lrng_write_wakeup_bits; ++extern int lrng_drng_reseed_max_time; ++ ++void lrng_writer_wakeup(void); ++void lrng_init_wakeup(void); ++void lrng_debug_report_seedlevel(const char *name); ++void lrng_process_ready_list(void); ++ ++/* External interface to use of the switchable DRBG inside the kernel */ ++void get_random_bytes_full(void *buf, int nbytes); ++ ++/************************* Jitter RNG Entropy Source **************************/ ++ ++#ifdef CONFIG_LRNG_JENT ++u32 lrng_get_jent(u8 *outbuf, u32 requested_bits); ++u32 lrng_jent_entropylevel(u32 requested_bits); ++void lrng_jent_es_state(unsigned char *buf, size_t buflen); ++#else /* CONFIG_LRNG_JENT */ ++static inline u32 lrng_get_jent(u8 *outbuf, u32 requested_bits) { return 0; } ++static inline u32 lrng_jent_entropylevel(u32 requested_bits) { return 0; } ++static inline void lrng_jent_es_state(unsigned char *buf, size_t buflen) { } ++#endif /* CONFIG_LRNG_JENT */ ++ ++/************************** CPU-based Entropy Source **************************/ ++ ++static inline u32 lrng_fast_noise_entropylevel(u32 ent_bits, u32 requested_bits) ++{ ++ /* Obtain entropy statement */ ++ ent_bits = ent_bits * requested_bits / LRNG_DRNG_SECURITY_STRENGTH_BITS; ++ /* Cap entropy to buffer size in bits */ ++ ent_bits = min_t(u32, ent_bits, requested_bits); ++ return ent_bits; ++} ++ ++#ifdef CONFIG_LRNG_CPU ++u32 lrng_get_arch(u8 *outbuf, u32 requested_bits); ++u32 lrng_archrandom_entropylevel(u32 requested_bits); ++void lrng_arch_es_state(unsigned char *buf, size_t buflen); ++#else /* CONFIG_LRNG_CPU */ ++static inline u32 lrng_get_arch(u8 *outbuf, u32 requested_bits) { return 0; } ++static inline u32 lrng_archrandom_entropylevel(u32 requested_bits) { return 0; } ++static inline void lrng_arch_es_state(unsigned char *buf, size_t buflen) { } ++#endif /* CONFIG_LRNG_CPU */ ++ ++/************************** Interrupt Entropy Source **************************/ ++ ++#ifdef CONFIG_LRNG_IRQ ++void lrng_pcpu_reset(void); ++u32 lrng_pcpu_avail_pool_size(void); ++u32 lrng_pcpu_avail_entropy(void); ++int lrng_pcpu_switch_hash(int node, ++ const struct lrng_crypto_cb *new_cb, void *new_hash, ++ const struct lrng_crypto_cb *old_cb); ++u32 lrng_pcpu_pool_hash(u8 *outbuf, u32 requested_bits, bool fully_seeded); ++void lrng_pcpu_array_add_u32(u32 data); ++u32 lrng_gcd_analyze(u32 *history, size_t nelem); ++void lrng_irq_es_state(unsigned char *buf, size_t buflen); ++#else /* CONFIG_LRNG_IRQ */ ++static inline void lrng_pcpu_reset(void) { } ++static inline u32 lrng_pcpu_avail_pool_size(void) { return 0; } ++static inline u32 lrng_pcpu_avail_entropy(void) { return 0; } ++static inline int lrng_pcpu_switch_hash(int node, ++ const struct lrng_crypto_cb *new_cb, void *new_hash, ++ const struct lrng_crypto_cb *old_cb) ++{ ++ return 0; ++} ++static inline u32 lrng_pcpu_pool_hash(u8 *outbuf, u32 requested_bits, ++ bool fully_seeded) ++{ ++ return 0; ++} ++static inline void lrng_pcpu_array_add_u32(u32 data) { } ++static inline void lrng_irq_es_state(unsigned char *buf, size_t buflen) { } ++#endif /* CONFIG_LRNG_IRQ */ ++ ++/****************************** DRNG processing *******************************/ ++ ++/* DRNG state handle */ ++struct lrng_drng { ++ void *drng; /* DRNG handle */ ++ void *hash; /* Hash handle */ ++ const struct lrng_crypto_cb *crypto_cb; /* Crypto callbacks */ ++ atomic_t requests; /* Number of DRNG requests */ ++ atomic_t requests_since_fully_seeded; /* Number DRNG requests since ++ last fully seeded */ ++ unsigned long last_seeded; /* Last time it was seeded */ ++ bool fully_seeded; /* Is DRNG fully seeded? */ ++ bool force_reseed; /* Force a reseed */ ++ ++ /* Lock write operations on DRNG state, DRNG replacement of crypto_cb */ ++ struct mutex lock; ++ spinlock_t spin_lock; ++ /* Lock *hash replacement - always take before DRNG lock */ ++ rwlock_t hash_lock; ++}; ++ ++extern struct mutex lrng_crypto_cb_update; ++ ++struct lrng_drng *lrng_drng_init_instance(void); ++struct lrng_drng *lrng_drng_atomic_instance(void); ++ ++static __always_inline bool lrng_drng_is_atomic(struct lrng_drng *drng) ++{ ++ return (drng->drng == lrng_drng_atomic_instance()->drng); ++} ++ ++/* Lock the DRNG */ ++static __always_inline void lrng_drng_lock(struct lrng_drng *drng, ++ unsigned long *flags) ++ __acquires(&drng->spin_lock) ++{ ++ /* Use spin lock in case the atomic DRNG context is used */ ++ if (lrng_drng_is_atomic(drng)) { ++ spin_lock_irqsave(&drng->spin_lock, *flags); ++ ++ /* ++ * In case a lock transition happened while we were spinning, ++ * catch this case and use the new lock type. ++ */ ++ if (!lrng_drng_is_atomic(drng)) { ++ spin_unlock_irqrestore(&drng->spin_lock, *flags); ++ __acquire(&drng->spin_lock); ++ mutex_lock(&drng->lock); ++ } ++ } else { ++ __acquire(&drng->spin_lock); ++ mutex_lock(&drng->lock); ++ } ++} ++ ++/* Unlock the DRNG */ ++static __always_inline void lrng_drng_unlock(struct lrng_drng *drng, ++ unsigned long *flags) ++ __releases(&drng->spin_lock) ++{ ++ if (lrng_drng_is_atomic(drng)) { ++ spin_unlock_irqrestore(&drng->spin_lock, *flags); ++ } else { ++ mutex_unlock(&drng->lock); ++ __release(&drng->spin_lock); ++ } ++} ++ ++void lrng_reset(void); ++void lrng_drngs_init_cc20(bool force_seed); ++bool lrng_sp80090c_compliant(void); ++ ++static inline u32 lrng_compress_osr(void) ++{ ++ return lrng_sp80090c_compliant() ? CONFIG_LRNG_OVERSAMPLE_ES_BITS : 0; ++} ++ ++static inline u32 lrng_reduce_by_osr(u32 entropy_bits) ++{ ++ u32 osr_bits = lrng_compress_osr(); ++ return (entropy_bits >= osr_bits) ? (entropy_bits - osr_bits) : 0; ++} ++ ++bool lrng_get_available(void); ++void lrng_set_available(void); ++void lrng_drng_reset(struct lrng_drng *drng); ++int lrng_drng_get_atomic(u8 *outbuf, u32 outbuflen); ++int lrng_drng_get_sleep(u8 *outbuf, u32 outbuflen); ++void lrng_drng_force_reseed(void); ++void lrng_drng_seed_work(struct work_struct *dummy); ++ ++#ifdef CONFIG_NUMA ++struct lrng_drng **lrng_drng_instances(void); ++void lrng_drngs_numa_alloc(void); ++#else /* CONFIG_NUMA */ ++static inline struct lrng_drng **lrng_drng_instances(void) { return NULL; } ++static inline void lrng_drngs_numa_alloc(void) { return; } ++#endif /* CONFIG_NUMA */ ++ ++/************************* Entropy sources management *************************/ ++ ++enum lrng_external_noise_source { ++ lrng_noise_source_hw, ++ lrng_noise_source_user ++}; ++ ++void lrng_set_entropy_thresh(u32 new); ++u32 lrng_avail_entropy(void); ++void lrng_reset_state(void); ++ ++bool lrng_state_exseed_allow(enum lrng_external_noise_source source); ++void lrng_state_exseed_set(enum lrng_external_noise_source source, bool type); ++bool lrng_state_min_seeded(void); ++bool lrng_state_fully_seeded(void); ++bool lrng_state_operational(void); ++ ++int lrng_pool_trylock(void); ++void lrng_pool_unlock(void); ++void lrng_pool_all_numa_nodes_seeded(bool set); ++void lrng_pool_add_entropy(void); ++ ++struct entropy_buf { ++ u8 a[LRNG_DRNG_INIT_SEED_SIZE_BYTES]; ++ u8 b[LRNG_DRNG_INIT_SEED_SIZE_BYTES]; ++ u8 c[LRNG_DRNG_INIT_SEED_SIZE_BYTES]; ++ u8 d[LRNG_DRNG_INIT_SEED_SIZE_BYTES]; ++ u32 now, a_bits, b_bits, c_bits, d_bits; ++}; ++ ++bool lrng_fully_seeded(bool fully_seeded, struct entropy_buf *eb); ++void lrng_unset_fully_seeded(struct lrng_drng *drng); ++void lrng_fill_seed_buffer(struct entropy_buf *entropy_buf, u32 requested_bits); ++void lrng_init_ops(struct entropy_buf *eb); ++ ++/*********************** Auxiliary Pool Entropy Source ************************/ ++ ++u32 lrng_avail_aux_entropy(void); ++void lrng_aux_es_state(unsigned char *buf, size_t buflen); ++u32 lrng_get_digestsize(void); ++void lrng_pool_set_entropy(u32 entropy_bits); ++int lrng_aux_switch_hash(const struct lrng_crypto_cb *new_cb, void *new_hash, ++ const struct lrng_crypto_cb *old_cb); ++int lrng_pool_insert_aux(const u8 *inbuf, u32 inbuflen, u32 entropy_bits); ++void lrng_get_backtrack_aux(struct entropy_buf *entropy_buf, ++ u32 requested_bits); ++ ++/* Obtain the security strength of the LRNG in bits */ ++static inline u32 lrng_security_strength(void) ++{ ++ /* ++ * We use a hash to read the entropy in the entropy pool. According to ++ * SP800-90B table 1, the entropy can be at most the digest size. ++ * Considering this together with the last sentence in section 3.1.5.1.2 ++ * the security strength of a (approved) hash is equal to its output ++ * size. On the other hand the entropy cannot be larger than the ++ * security strength of the used DRBG. ++ */ ++ return min_t(u32, LRNG_FULL_SEED_ENTROPY_BITS, lrng_get_digestsize()); ++} ++ ++static inline u32 lrng_get_seed_entropy_osr(bool fully_seeded) ++{ ++ u32 requested_bits = lrng_security_strength(); ++ ++ /* Apply oversampling during initialization according to SP800-90C */ ++ if (lrng_sp80090c_compliant() && !fully_seeded) ++ requested_bits += CONFIG_LRNG_SEED_BUFFER_INIT_ADD_BITS; ++ return requested_bits; ++} ++ ++/************************** Health Test linking code **************************/ ++ ++enum lrng_health_res { ++ lrng_health_pass, /* Health test passes on time stamp */ ++ lrng_health_fail_use, /* Time stamp unhealthy, but mix in */ ++ lrng_health_fail_drop /* Time stamp unhealthy, drop it */ ++}; ++ ++#ifdef CONFIG_LRNG_HEALTH_TESTS ++bool lrng_sp80090b_startup_complete(void); ++bool lrng_sp80090b_compliant(void); ++ ++enum lrng_health_res lrng_health_test(u32 now_time); ++void lrng_health_disable(void); ++ ++#else /* CONFIG_LRNG_HEALTH_TESTS */ ++static inline bool lrng_sp80090b_startup_complete(void) { return true; } ++static inline bool lrng_sp80090b_compliant(void) { return false; } ++ ++static inline enum lrng_health_res ++lrng_health_test(u32 now_time) { return lrng_health_pass; } ++static inline void lrng_health_disable(void) { } ++#endif /* CONFIG_LRNG_HEALTH_TESTS */ ++ ++/****************************** Helper code ***********************************/ ++ ++static inline u32 atomic_read_u32(atomic_t *v) ++{ ++ return (u32)atomic_read(v); ++} ++ ++/******************** Crypto Primitive Switching Support **********************/ ++ ++#ifdef CONFIG_LRNG_DRNG_SWITCH ++static inline void lrng_hash_lock(struct lrng_drng *drng, unsigned long *flags) ++{ ++ read_lock_irqsave(&drng->hash_lock, *flags); ++} ++ ++static inline void lrng_hash_unlock(struct lrng_drng *drng, unsigned long flags) ++{ ++ read_unlock_irqrestore(&drng->hash_lock, flags); ++} ++#else /* CONFIG_LRNG_DRNG_SWITCH */ ++static inline void lrng_hash_lock(struct lrng_drng *drng, unsigned long *flags) ++{ } ++ ++static inline void lrng_hash_unlock(struct lrng_drng *drng, unsigned long flags) ++{ } ++#endif /* CONFIG_LRNG_DRNG_SWITCH */ ++ ++/*************************** Auxiliary functions ******************************/ ++ ++void invalidate_batched_entropy(void); ++ ++/***************************** Testing code ***********************************/ ++ ++#ifdef CONFIG_LRNG_RAW_HIRES_ENTROPY ++bool lrng_raw_hires_entropy_store(u32 value); ++#else /* CONFIG_LRNG_RAW_HIRES_ENTROPY */ ++static inline bool lrng_raw_hires_entropy_store(u32 value) { return false; } ++#endif /* CONFIG_LRNG_RAW_HIRES_ENTROPY */ ++ ++#ifdef CONFIG_LRNG_RAW_JIFFIES_ENTROPY ++bool lrng_raw_jiffies_entropy_store(u32 value); ++#else /* CONFIG_LRNG_RAW_JIFFIES_ENTROPY */ ++static inline bool lrng_raw_jiffies_entropy_store(u32 value) { return false; } ++#endif /* CONFIG_LRNG_RAW_JIFFIES_ENTROPY */ ++ ++#ifdef CONFIG_LRNG_RAW_IRQ_ENTROPY ++bool lrng_raw_irq_entropy_store(u32 value); ++#else /* CONFIG_LRNG_RAW_IRQ_ENTROPY */ ++static inline bool lrng_raw_irq_entropy_store(u32 value) { return false; } ++#endif /* CONFIG_LRNG_RAW_IRQ_ENTROPY */ ++ ++#ifdef CONFIG_LRNG_RAW_IRQFLAGS_ENTROPY ++bool lrng_raw_irqflags_entropy_store(u32 value); ++#else /* CONFIG_LRNG_RAW_IRQFLAGS_ENTROPY */ ++static inline bool lrng_raw_irqflags_entropy_store(u32 value) { return false; } ++#endif /* CONFIG_LRNG_RAW_IRQFLAGS_ENTROPY */ ++ ++#ifdef CONFIG_LRNG_RAW_RETIP_ENTROPY ++bool lrng_raw_retip_entropy_store(u32 value); ++#else /* CONFIG_LRNG_RAW_RETIP_ENTROPY */ ++static inline bool lrng_raw_retip_entropy_store(u32 value) { return false; } ++#endif /* CONFIG_LRNG_RAW_RETIP_ENTROPY */ ++ ++#ifdef CONFIG_LRNG_RAW_REGS_ENTROPY ++bool lrng_raw_regs_entropy_store(u32 value); ++#else /* CONFIG_LRNG_RAW_REGS_ENTROPY */ ++static inline bool lrng_raw_regs_entropy_store(u32 value) { return false; } ++#endif /* CONFIG_LRNG_RAW_REGS_ENTROPY */ ++ ++#ifdef CONFIG_LRNG_RAW_ARRAY ++bool lrng_raw_array_entropy_store(u32 value); ++#else /* CONFIG_LRNG_RAW_ARRAY */ ++static inline bool lrng_raw_array_entropy_store(u32 value) { return false; } ++#endif /* CONFIG_LRNG_RAW_ARRAY */ ++ ++#ifdef CONFIG_LRNG_IRQ_PERF ++bool lrng_perf_time(u32 start); ++#else /* CONFIG_LRNG_IRQ_PERF */ ++static inline bool lrng_perf_time(u32 start) { return false; } ++#endif /*CONFIG_LRNG_IRQ_PERF */ ++ ++#endif /* _LRNG_INTERNAL_H */ +diff -urN linux-5.15/drivers/char/lrng/lrng_kcapi.c linux-5.15-lrng/drivers/char/lrng/lrng_kcapi.c +--- linux-5.15/drivers/char/lrng/lrng_kcapi.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_kcapi.c 2021-11-29 12:37:45.153278971 +1100 +@@ -0,0 +1,227 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * Backend for the LRNG providing the cryptographic primitives using the ++ * kernel crypto API. ++ * ++ * Copyright (C) 2018 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <crypto/hash.h> ++#include <crypto/rng.h> ++#include <linux/init.h> ++#include <linux/module.h> ++#include <linux/lrng.h> ++ ++#include "lrng_kcapi_hash.h" ++ ++static char *drng_name = NULL; ++module_param(drng_name, charp, 0444); ++MODULE_PARM_DESC(drng_name, "Kernel crypto API name of DRNG"); ++ ++static char *pool_hash = "sha512"; ++module_param(pool_hash, charp, 0444); ++MODULE_PARM_DESC(pool_hash, ++ "Kernel crypto API name of hash or keyed message digest to read the entropy pool"); ++ ++static char *seed_hash = NULL; ++module_param(seed_hash, charp, 0444); ++MODULE_PARM_DESC(seed_hash, ++ "Kernel crypto API name of hash with output size equal to seedsize of DRNG to bring seed string to the size required by the DRNG"); ++ ++struct lrng_drng_info { ++ struct crypto_rng *kcapi_rng; ++ void *lrng_hash; ++}; ++ ++static void *lrng_kcapi_drng_hash_alloc(void) ++{ ++ return lrng_kcapi_hash_alloc(pool_hash); ++} ++ ++static int lrng_kcapi_drng_seed_helper(void *drng, const u8 *inbuf, ++ u32 inbuflen) ++{ ++ SHASH_DESC_ON_STACK(shash, NULL); ++ struct lrng_drng_info *lrng_drng_info = (struct lrng_drng_info *)drng; ++ struct crypto_rng *kcapi_rng = lrng_drng_info->kcapi_rng; ++ void *hash = lrng_drng_info->lrng_hash; ++ u32 digestsize = lrng_kcapi_hash_digestsize(hash); ++ u8 digest[64] __aligned(8); ++ int ret; ++ ++ if (!hash) ++ return crypto_rng_reset(kcapi_rng, inbuf, inbuflen); ++ ++ BUG_ON(digestsize > sizeof(digest)); ++ ++ ret = lrng_kcapi_hash_init(shash, hash) ?: ++ lrng_kcapi_hash_update(shash, inbuf, inbuflen) ?: ++ lrng_kcapi_hash_final(shash, digest); ++ lrng_kcapi_hash_zero(shash); ++ if (ret) ++ return ret; ++ ++ ret = crypto_rng_reset(kcapi_rng, digest, digestsize); ++ if (ret) ++ return ret; ++ ++ memzero_explicit(digest, digestsize); ++ return 0; ++} ++ ++static int lrng_kcapi_drng_generate_helper(void *drng, u8 *outbuf, ++ u32 outbuflen) ++{ ++ struct lrng_drng_info *lrng_drng_info = (struct lrng_drng_info *)drng; ++ struct crypto_rng *kcapi_rng = lrng_drng_info->kcapi_rng; ++ int ret = crypto_rng_get_bytes(kcapi_rng, outbuf, outbuflen); ++ ++ if (ret < 0) ++ return ret; ++ ++ return outbuflen; ++} ++ ++static void *lrng_kcapi_drng_alloc(u32 sec_strength) ++{ ++ struct lrng_drng_info *lrng_drng_info; ++ struct crypto_rng *kcapi_rng; ++ int seedsize; ++ void *ret = ERR_PTR(-ENOMEM); ++ ++ if (!drng_name) { ++ pr_err("DRNG name missing\n"); ++ return ERR_PTR(-EINVAL); ++ } ++ ++ if (!memcmp(drng_name, "drbg", 4) || ++ !memcmp(drng_name, "stdrng", 6) || ++ !memcmp(drng_name, "jitterentropy_rng", 17)) { ++ pr_err("Refusing to load the requested random number generator\n"); ++ return ERR_PTR(-EINVAL); ++ } ++ ++ lrng_drng_info = kmalloc(sizeof(*lrng_drng_info), GFP_KERNEL); ++ if (!lrng_drng_info) ++ return ERR_PTR(-ENOMEM); ++ ++ kcapi_rng = crypto_alloc_rng(drng_name, 0, 0); ++ if (IS_ERR(kcapi_rng)) { ++ pr_err("DRNG %s cannot be allocated\n", drng_name); ++ ret = ERR_CAST(kcapi_rng); ++ goto free; ++ } ++ lrng_drng_info->kcapi_rng = kcapi_rng; ++ ++ seedsize = crypto_rng_seedsize(kcapi_rng); ++ ++ if (sec_strength > seedsize) ++ pr_info("Seedsize DRNG (%u bits) lower than security strength of LRNG noise source (%u bits)\n", ++ crypto_rng_seedsize(kcapi_rng) * 8, sec_strength * 8); ++ ++ if (seedsize) { ++ void *lrng_hash; ++ ++ if (!seed_hash) { ++ switch (seedsize) { ++ case 32: ++ seed_hash = "sha256"; ++ break; ++ case 48: ++ seed_hash = "sha384"; ++ break; ++ case 64: ++ seed_hash = "sha512"; ++ break; ++ default: ++ pr_err("Seed size %d cannot be processed\n", ++ seedsize); ++ goto dealloc; ++ } ++ } ++ ++ lrng_hash = lrng_kcapi_hash_alloc(seed_hash); ++ if (IS_ERR(lrng_hash)) { ++ ret = ERR_CAST(lrng_hash); ++ goto dealloc; ++ } ++ ++ if (seedsize != lrng_kcapi_hash_digestsize(lrng_hash)) { ++ pr_err("Seed hash output size not equal to DRNG seed size\n"); ++ lrng_kcapi_hash_dealloc(lrng_hash); ++ ret = ERR_PTR(-EINVAL); ++ goto dealloc; ++ } ++ ++ lrng_drng_info->lrng_hash = lrng_hash; ++ ++ pr_info("Seed hash %s allocated\n", seed_hash); ++ } else { ++ lrng_drng_info->lrng_hash = NULL; ++ } ++ ++ pr_info("Kernel crypto API DRNG %s allocated\n", drng_name); ++ ++ return lrng_drng_info; ++ ++dealloc: ++ crypto_free_rng(kcapi_rng); ++free: ++ kfree(lrng_drng_info); ++ return ret; ++} ++ ++static void lrng_kcapi_drng_dealloc(void *drng) ++{ ++ struct lrng_drng_info *lrng_drng_info = (struct lrng_drng_info *)drng; ++ struct crypto_rng *kcapi_rng = lrng_drng_info->kcapi_rng; ++ ++ crypto_free_rng(kcapi_rng); ++ if (lrng_drng_info->lrng_hash) ++ lrng_kcapi_hash_dealloc(lrng_drng_info->lrng_hash); ++ kfree(lrng_drng_info); ++ pr_info("DRNG %s deallocated\n", drng_name); ++} ++ ++static const char *lrng_kcapi_drng_name(void) ++{ ++ return drng_name; ++} ++ ++static const char *lrng_kcapi_pool_hash(void) ++{ ++ return pool_hash; ++} ++ ++static const struct lrng_crypto_cb lrng_kcapi_crypto_cb = { ++ .lrng_drng_name = lrng_kcapi_drng_name, ++ .lrng_hash_name = lrng_kcapi_pool_hash, ++ .lrng_drng_alloc = lrng_kcapi_drng_alloc, ++ .lrng_drng_dealloc = lrng_kcapi_drng_dealloc, ++ .lrng_drng_seed_helper = lrng_kcapi_drng_seed_helper, ++ .lrng_drng_generate_helper = lrng_kcapi_drng_generate_helper, ++ .lrng_hash_alloc = lrng_kcapi_drng_hash_alloc, ++ .lrng_hash_dealloc = lrng_kcapi_hash_dealloc, ++ .lrng_hash_digestsize = lrng_kcapi_hash_digestsize, ++ .lrng_hash_init = lrng_kcapi_hash_init, ++ .lrng_hash_update = lrng_kcapi_hash_update, ++ .lrng_hash_final = lrng_kcapi_hash_final, ++ .lrng_hash_desc_zero = lrng_kcapi_hash_zero, ++}; ++ ++static int __init lrng_kcapi_init(void) ++{ ++ return lrng_set_drng_cb(&lrng_kcapi_crypto_cb); ++} ++static void __exit lrng_kcapi_exit(void) ++{ ++ lrng_set_drng_cb(NULL); ++} ++ ++late_initcall(lrng_kcapi_init); ++module_exit(lrng_kcapi_exit); ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_AUTHOR("Stephan Mueller <smueller@chronox.de>"); ++MODULE_DESCRIPTION("Linux Random Number Generator - kernel crypto API DRNG backend"); +diff -urN linux-5.15/drivers/char/lrng/lrng_kcapi_hash.c linux-5.15-lrng/drivers/char/lrng/lrng_kcapi_hash.c +--- linux-5.15/drivers/char/lrng/lrng_kcapi_hash.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_kcapi_hash.c 2021-11-29 12:37:24.863279049 +1100 +@@ -0,0 +1,103 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * Backend for providing the hash primitive using the kernel crypto API. ++ * ++ * Copyright (C) 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <crypto/hash.h> ++ ++#include "lrng_kcapi_hash.h" ++ ++struct lrng_hash_info { ++ struct crypto_shash *tfm; ++}; ++ ++static inline void _lrng_kcapi_hash_free(struct lrng_hash_info *lrng_hash) ++{ ++ struct crypto_shash *tfm = lrng_hash->tfm; ++ ++ crypto_free_shash(tfm); ++ kfree(lrng_hash); ++} ++ ++void *lrng_kcapi_hash_alloc(const char *name) ++{ ++ struct lrng_hash_info *lrng_hash; ++ struct crypto_shash *tfm; ++ int ret; ++ ++ if (!name) { ++ pr_err("Hash name missing\n"); ++ return ERR_PTR(-EINVAL); ++ } ++ ++ tfm = crypto_alloc_shash(name, 0, 0); ++ if (IS_ERR(tfm)) { ++ pr_err("could not allocate hash %s\n", name); ++ return ERR_CAST(tfm); ++ } ++ ++ ret = sizeof(struct lrng_hash_info); ++ lrng_hash = kmalloc(ret, GFP_KERNEL); ++ if (!lrng_hash) { ++ crypto_free_shash(tfm); ++ return ERR_PTR(-ENOMEM); ++ } ++ ++ lrng_hash->tfm = tfm; ++ ++ pr_info("Hash %s allocated\n", name); ++ ++ return lrng_hash; ++} ++EXPORT_SYMBOL(lrng_kcapi_hash_alloc); ++ ++u32 lrng_kcapi_hash_digestsize(void *hash) ++{ ++ struct lrng_hash_info *lrng_hash = (struct lrng_hash_info *)hash; ++ struct crypto_shash *tfm = lrng_hash->tfm; ++ ++ return crypto_shash_digestsize(tfm); ++} ++EXPORT_SYMBOL(lrng_kcapi_hash_digestsize); ++ ++void lrng_kcapi_hash_dealloc(void *hash) ++{ ++ struct lrng_hash_info *lrng_hash = (struct lrng_hash_info *)hash; ++ ++ _lrng_kcapi_hash_free(lrng_hash); ++ pr_info("Hash deallocated\n"); ++} ++EXPORT_SYMBOL(lrng_kcapi_hash_dealloc); ++ ++int lrng_kcapi_hash_init(struct shash_desc *shash, void *hash) ++{ ++ struct lrng_hash_info *lrng_hash = (struct lrng_hash_info *)hash; ++ struct crypto_shash *tfm = lrng_hash->tfm; ++ ++ shash->tfm = tfm; ++ return crypto_shash_init(shash); ++} ++EXPORT_SYMBOL(lrng_kcapi_hash_init); ++ ++int lrng_kcapi_hash_update(struct shash_desc *shash, const u8 *inbuf, ++ u32 inbuflen) ++{ ++ return crypto_shash_update(shash, inbuf, inbuflen); ++} ++EXPORT_SYMBOL(lrng_kcapi_hash_update); ++ ++int lrng_kcapi_hash_final(struct shash_desc *shash, u8 *digest) ++{ ++ return crypto_shash_final(shash, digest); ++} ++EXPORT_SYMBOL(lrng_kcapi_hash_final); ++ ++void lrng_kcapi_hash_zero(struct shash_desc *shash) ++{ ++ shash_desc_zero(shash); ++} ++EXPORT_SYMBOL(lrng_kcapi_hash_zero); +diff -urN linux-5.15/drivers/char/lrng/lrng_kcapi_hash.h linux-5.15-lrng/drivers/char/lrng/lrng_kcapi_hash.h +--- linux-5.15/drivers/char/lrng/lrng_kcapi_hash.h 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_kcapi_hash.h 2021-11-29 12:37:24.863279049 +1100 +@@ -0,0 +1,20 @@ ++/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ ++/* ++ * Copyright (C) 2020 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#ifndef _LRNG_KCAPI_HASH_H ++#define _LRNG_KCAPI_HASH_H ++ ++#include <linux/module.h> ++ ++void *lrng_kcapi_hash_alloc(const char *name); ++u32 lrng_kcapi_hash_digestsize(void *hash); ++void lrng_kcapi_hash_dealloc(void *hash); ++int lrng_kcapi_hash_init(struct shash_desc *shash, void *hash); ++int lrng_kcapi_hash_update(struct shash_desc *shash, const u8 *inbuf, ++ u32 inbuflen); ++int lrng_kcapi_hash_final(struct shash_desc *shash, u8 *digest); ++void lrng_kcapi_hash_zero(struct shash_desc *shash); ++ ++#endif /* _LRNG_KCAPI_HASH_H */ +diff -urN linux-5.15/drivers/char/lrng/lrng_numa.c linux-5.15-lrng/drivers/char/lrng/lrng_numa.c +--- linux-5.15/drivers/char/lrng/lrng_numa.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_numa.c 2021-11-29 12:37:08.753279110 +1100 +@@ -0,0 +1,122 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG NUMA support ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/lrng.h> ++#include <linux/slab.h> ++ ++#include "lrng_internal.h" ++ ++static struct lrng_drng **lrng_drng __read_mostly = NULL; ++ ++struct lrng_drng **lrng_drng_instances(void) ++{ ++ return smp_load_acquire(&lrng_drng); ++} ++ ++/* Allocate the data structures for the per-NUMA node DRNGs */ ++static void _lrng_drngs_numa_alloc(struct work_struct *work) ++{ ++ struct lrng_drng **drngs; ++ struct lrng_drng *lrng_drng_init = lrng_drng_init_instance(); ++ u32 node; ++ bool init_drng_used = false; ++ ++ mutex_lock(&lrng_crypto_cb_update); ++ ++ /* per-NUMA-node DRNGs are already present */ ++ if (lrng_drng) ++ goto unlock; ++ ++ drngs = kcalloc(nr_node_ids, sizeof(void *), GFP_KERNEL|__GFP_NOFAIL); ++ for_each_online_node(node) { ++ struct lrng_drng *drng; ++ ++ if (!init_drng_used) { ++ drngs[node] = lrng_drng_init; ++ init_drng_used = true; ++ continue; ++ } ++ ++ drng = kmalloc_node(sizeof(struct lrng_drng), ++ GFP_KERNEL|__GFP_NOFAIL, node); ++ memset(drng, 0, sizeof(lrng_drng)); ++ ++ drng->crypto_cb = lrng_drng_init->crypto_cb; ++ drng->drng = drng->crypto_cb->lrng_drng_alloc( ++ LRNG_DRNG_SECURITY_STRENGTH_BYTES); ++ if (IS_ERR(drng->drng)) { ++ kfree(drng); ++ goto err; ++ } ++ ++ drng->hash = drng->crypto_cb->lrng_hash_alloc(); ++ if (IS_ERR(drng->hash)) { ++ drng->crypto_cb->lrng_drng_dealloc(drng->drng); ++ kfree(drng); ++ goto err; ++ } ++ ++ mutex_init(&drng->lock); ++ spin_lock_init(&drng->spin_lock); ++ rwlock_init(&drng->hash_lock); ++ ++ /* ++ * Switch the hash used by the per-CPU pool. ++ * We do not need to lock the new hash as it is not usable yet ++ * due to **drngs not yet being initialized. ++ */ ++ if (lrng_pcpu_switch_hash(node, drng->crypto_cb, drng->hash, ++ &lrng_cc20_crypto_cb)) ++ goto err; ++ ++ /* ++ * No reseeding of NUMA DRNGs from previous DRNGs as this ++ * would complicate the code. Let it simply reseed. ++ */ ++ lrng_drng_reset(drng); ++ drngs[node] = drng; ++ ++ lrng_pool_inc_numa_node(); ++ pr_info("DRNG and entropy pool read hash for NUMA node %d allocated\n", ++ node); ++ } ++ ++ /* counterpart to smp_load_acquire in lrng_drng_instances */ ++ if (!cmpxchg_release(&lrng_drng, NULL, drngs)) { ++ lrng_pool_all_numa_nodes_seeded(false); ++ goto unlock; ++ } ++ ++err: ++ for_each_online_node(node) { ++ struct lrng_drng *drng = drngs[node]; ++ ++ if (drng == lrng_drng_init) ++ continue; ++ ++ if (drng) { ++ lrng_pcpu_switch_hash(node, &lrng_cc20_crypto_cb, NULL, ++ drng->crypto_cb); ++ drng->crypto_cb->lrng_hash_dealloc(drng->hash); ++ drng->crypto_cb->lrng_drng_dealloc(drng->drng); ++ kfree(drng); ++ } ++ } ++ kfree(drngs); ++ ++unlock: ++ mutex_unlock(&lrng_crypto_cb_update); ++} ++ ++static DECLARE_WORK(lrng_drngs_numa_alloc_work, _lrng_drngs_numa_alloc); ++ ++void lrng_drngs_numa_alloc(void) ++{ ++ schedule_work(&lrng_drngs_numa_alloc_work); ++} +diff -urN linux-5.15/drivers/char/lrng/lrng_proc.c linux-5.15-lrng/drivers/char/lrng/lrng_proc.c +--- linux-5.15/drivers/char/lrng/lrng_proc.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_proc.c 2021-11-29 12:37:03.083279132 +1100 +@@ -0,0 +1,199 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG proc and sysctl interfaces ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#include <linux/lrng.h> ++#include <linux/proc_fs.h> ++#include <linux/seq_file.h> ++#include <linux/sysctl.h> ++#include <linux/uuid.h> ++ ++#include "lrng_internal.h" ++ ++/* ++ * This function is used to return both the bootid UUID, and random ++ * UUID. The difference is in whether table->data is NULL; if it is, ++ * then a new UUID is generated and returned to the user. ++ * ++ * If the user accesses this via the proc interface, the UUID will be ++ * returned as an ASCII string in the standard UUID format; if via the ++ * sysctl system call, as 16 bytes of binary data. ++ */ ++static int lrng_proc_do_uuid(struct ctl_table *table, int write, ++ void *buffer, size_t *lenp, loff_t *ppos) ++{ ++ struct ctl_table fake_table; ++ unsigned char buf[64], tmp_uuid[16], *uuid; ++ ++ uuid = table->data; ++ if (!uuid) { ++ uuid = tmp_uuid; ++ generate_random_uuid(uuid); ++ } else { ++ static DEFINE_SPINLOCK(bootid_spinlock); ++ ++ spin_lock(&bootid_spinlock); ++ if (!uuid[8]) ++ generate_random_uuid(uuid); ++ spin_unlock(&bootid_spinlock); ++ } ++ ++ sprintf(buf, "%pU", uuid); ++ ++ fake_table.data = buf; ++ fake_table.maxlen = sizeof(buf); ++ ++ return proc_dostring(&fake_table, write, buffer, lenp, ppos); ++} ++ ++static int lrng_proc_do_entropy(struct ctl_table *table, int write, ++ void *buffer, size_t *lenp, loff_t *ppos) ++{ ++ struct ctl_table fake_table; ++ int entropy_count; ++ ++ entropy_count = lrng_avail_entropy(); ++ ++ fake_table.data = &entropy_count; ++ fake_table.maxlen = sizeof(entropy_count); ++ ++ return proc_dointvec(&fake_table, write, buffer, lenp, ppos); ++} ++ ++static int lrng_proc_do_poolsize(struct ctl_table *table, int write, ++ void *buffer, size_t *lenp, loff_t *ppos) ++{ ++ struct ctl_table fake_table; ++ int entropy_count; ++ ++ /* LRNG can at most retain entropy in per-CPU pools and aux pool */ ++ entropy_count = lrng_get_digestsize() + lrng_pcpu_avail_pool_size(); ++ ++ fake_table.data = &entropy_count; ++ fake_table.maxlen = sizeof(entropy_count); ++ ++ return proc_dointvec(&fake_table, write, buffer, lenp, ppos); ++} ++ ++static int lrng_min_write_thresh; ++static int lrng_max_write_thresh = (LRNG_WRITE_WAKEUP_ENTROPY << 3); ++static char lrng_sysctl_bootid[16]; ++static int lrng_drng_reseed_max_min; ++ ++void lrng_proc_update_max_write_thresh(u32 new_digestsize) ++{ ++ lrng_max_write_thresh = (int)new_digestsize; ++ mb(); ++} ++ ++struct ctl_table random_table[] = { ++ { ++ .procname = "poolsize", ++ .maxlen = sizeof(int), ++ .mode = 0444, ++ .proc_handler = lrng_proc_do_poolsize, ++ }, ++ { ++ .procname = "entropy_avail", ++ .maxlen = sizeof(int), ++ .mode = 0444, ++ .proc_handler = lrng_proc_do_entropy, ++ }, ++ { ++ .procname = "write_wakeup_threshold", ++ .data = &lrng_write_wakeup_bits, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = proc_dointvec_minmax, ++ .extra1 = &lrng_min_write_thresh, ++ .extra2 = &lrng_max_write_thresh, ++ }, ++ { ++ .procname = "boot_id", ++ .data = &lrng_sysctl_bootid, ++ .maxlen = 16, ++ .mode = 0444, ++ .proc_handler = lrng_proc_do_uuid, ++ }, ++ { ++ .procname = "uuid", ++ .maxlen = 16, ++ .mode = 0444, ++ .proc_handler = lrng_proc_do_uuid, ++ }, ++ { ++ .procname = "urandom_min_reseed_secs", ++ .data = &lrng_drng_reseed_max_time, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = proc_dointvec, ++ .extra1 = &lrng_drng_reseed_max_min, ++ }, ++ { } ++}; ++ ++/* Number of online DRNGs */ ++static u32 numa_drngs = 1; ++ ++void lrng_pool_inc_numa_node(void) ++{ ++ numa_drngs++; ++} ++ ++static int lrng_proc_type_show(struct seq_file *m, void *v) ++{ ++ struct lrng_drng *lrng_drng_init = lrng_drng_init_instance(); ++ unsigned long flags = 0; ++ unsigned char buf[250], irq[200], aux[100], cpu[90], jent[45]; ++ ++ lrng_drng_lock(lrng_drng_init, &flags); ++ snprintf(buf, sizeof(buf), ++ "DRNG name: %s\n" ++ "LRNG security strength in bits: %d\n" ++ "number of DRNG instances: %u\n" ++ "Standards compliance: %s\n" ++ "Entropy Sources: %s%s%sAuxiliary\n" ++ "LRNG minimally seeded: %s\n" ++ "LRNG fully seeded: %s\n", ++ lrng_drng_init->crypto_cb->lrng_drng_name(), ++ lrng_security_strength(), ++ numa_drngs, ++ lrng_sp80090c_compliant() ? "SP800-90C " : "", ++ IS_ENABLED(CONFIG_LRNG_IRQ) ? "IRQ " : "", ++ IS_ENABLED(CONFIG_LRNG_JENT) ? "JitterRNG " : "", ++ IS_ENABLED(CONFIG_LRNG_CPU) ? "CPU " : "", ++ lrng_state_min_seeded() ? "true" : "false", ++ lrng_state_fully_seeded() ? "true" : "false"); ++ ++ lrng_aux_es_state(aux, sizeof(aux)); ++ ++ irq[0] = '\0'; ++ lrng_irq_es_state(irq, sizeof(irq)); ++ ++ jent[0] = '\0'; ++ lrng_jent_es_state(jent, sizeof(jent)); ++ ++ cpu[0] = '\0'; ++ lrng_arch_es_state(cpu, sizeof(cpu)); ++ ++ lrng_drng_unlock(lrng_drng_init, &flags); ++ ++ seq_write(m, buf, strlen(buf)); ++ seq_write(m, aux, strlen(aux)); ++ seq_write(m, irq, strlen(irq)); ++ seq_write(m, jent, strlen(jent)); ++ seq_write(m, cpu, strlen(cpu)); ++ ++ return 0; ++} ++ ++static int __init lrng_proc_type_init(void) ++{ ++ proc_create_single("lrng_type", 0444, NULL, &lrng_proc_type_show); ++ return 0; ++} ++ ++module_init(lrng_proc_type_init); +diff -urN linux-5.15/drivers/char/lrng/lrng_selftest.c linux-5.15-lrng/drivers/char/lrng/lrng_selftest.c +--- linux-5.15/drivers/char/lrng/lrng_selftest.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_selftest.c 2021-11-29 12:38:26.603278813 +1100 +@@ -0,0 +1,386 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG power-on and on-demand self-test ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++/* ++ * In addition to the self-tests below, the following LRNG components ++ * are covered with self-tests during regular operation: ++ * ++ * * power-on self-test: SP800-90A DRBG provided by the Linux kernel crypto API ++ * * power-on self-test: PRNG provided by the Linux kernel crypto API ++ * * runtime test: Raw noise source data testing including SP800-90B compliant ++ * tests when enabling CONFIG_LRNG_HEALTH_TESTS ++ * ++ * Additional developer tests present with LRNG code: ++ * * SP800-90B APT and RCT test enforcement validation when enabling ++ * CONFIG_LRNG_APT_BROKEN or CONFIG_LRNG_RCT_BROKEN. ++ * * Collection of raw entropy from the interrupt noise source when enabling ++ * CONFIG_LRNG_TESTING and pulling the data from the kernel with the provided ++ * interface. ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/module.h> ++#include <linux/lrng.h> ++#include <linux/slab.h> ++ ++#include "lrng_chacha20.h" ++#include "lrng_internal.h" ++ ++#define LRNG_SELFTEST_PASSED 0 ++#define LRNG_SEFLTEST_ERROR_TIME (1 << 0) ++#define LRNG_SEFLTEST_ERROR_CHACHA20 (1 << 1) ++#define LRNG_SEFLTEST_ERROR_HASH (1 << 2) ++#define LRNG_SEFLTEST_ERROR_GCD (1 << 3) ++#define LRNG_SELFTEST_NOT_EXECUTED 0xffffffff ++ ++#ifdef CONFIG_LRNG_IRQ ++ ++#include "lrng_es_irq.h" ++ ++static u32 lrng_data_selftest_ptr = 0; ++static u32 lrng_data_selftest[LRNG_DATA_ARRAY_SIZE]; ++ ++static inline void lrng_data_process_selftest_insert(u32 time) ++{ ++ u32 ptr = lrng_data_selftest_ptr++ & LRNG_DATA_WORD_MASK; ++ unsigned int array = lrng_data_idx2array(ptr); ++ unsigned int slot = lrng_data_idx2slot(ptr); ++ ++ /* zeroization of slot to ensure the following OR adds the data */ ++ lrng_data_selftest[array] &= ++ ~(lrng_data_slot_val(0xffffffff & LRNG_DATA_SLOTSIZE_MASK, ++ slot)); ++ lrng_data_selftest[array] |= ++ lrng_data_slot_val(time & LRNG_DATA_SLOTSIZE_MASK, slot); ++} ++ ++static inline void lrng_data_process_selftest_u32(u32 data) ++{ ++ u32 pre_ptr, ptr, mask; ++ unsigned int pre_array; ++ ++ /* Increment pointer by number of slots taken for input value */ ++ lrng_data_selftest_ptr += LRNG_DATA_SLOTS_PER_UINT; ++ ++ /* ptr to current unit */ ++ ptr = lrng_data_selftest_ptr; ++ ++ lrng_pcpu_split_u32(&ptr, &pre_ptr, &mask); ++ ++ /* MSB of data go into previous unit */ ++ pre_array = lrng_data_idx2array(pre_ptr); ++ /* zeroization of slot to ensure the following OR adds the data */ ++ lrng_data_selftest[pre_array] &= ~(0xffffffff & ~mask); ++ lrng_data_selftest[pre_array] |= data & ~mask; ++ ++ /* LSB of data go into current unit */ ++ lrng_data_selftest[lrng_data_idx2array(ptr)] = data & mask; ++} ++ ++static unsigned int lrng_data_process_selftest(void) ++{ ++ u32 time; ++ u32 idx_zero_compare = (0 << 0) | (1 << 8) | (2 << 16) | (3 << 24); ++ u32 idx_one_compare = (4 << 0) | (5 << 8) | (6 << 16) | (7 << 24); ++ u32 idx_last_compare = ++ (((LRNG_DATA_NUM_VALUES - 4) & LRNG_DATA_SLOTSIZE_MASK) << 0) | ++ (((LRNG_DATA_NUM_VALUES - 3) & LRNG_DATA_SLOTSIZE_MASK) << 8) | ++ (((LRNG_DATA_NUM_VALUES - 2) & LRNG_DATA_SLOTSIZE_MASK) << 16) | ++ (((LRNG_DATA_NUM_VALUES - 1) & LRNG_DATA_SLOTSIZE_MASK) << 24); ++ ++ (void)idx_one_compare; ++ ++ /* "poison" the array to verify the operation of the zeroization */ ++ lrng_data_selftest[0] = 0xffffffff; ++ lrng_data_selftest[1] = 0xffffffff; ++ ++ lrng_data_process_selftest_insert(0); ++ /* ++ * Note, when using lrng_data_process_u32() on unaligned ptr, ++ * the first slots will go into next word, and the last slots go ++ * into the previous word. ++ */ ++ lrng_data_process_selftest_u32((4 << 0) | (1 << 8) | (2 << 16) | ++ (3 << 24)); ++ lrng_data_process_selftest_insert(5); ++ lrng_data_process_selftest_insert(6); ++ lrng_data_process_selftest_insert(7); ++ ++ if ((lrng_data_selftest[0] != idx_zero_compare) || ++ (lrng_data_selftest[1] != idx_one_compare)) ++ goto err; ++ ++ /* Reset for next test */ ++ lrng_data_selftest[0] = 0; ++ lrng_data_selftest[1] = 0; ++ lrng_data_selftest_ptr = 0; ++ ++ for (time = 0; time < LRNG_DATA_NUM_VALUES; time++) ++ lrng_data_process_selftest_insert(time); ++ ++ if ((lrng_data_selftest[0] != idx_zero_compare) || ++ (lrng_data_selftest[1] != idx_one_compare) || ++ (lrng_data_selftest[LRNG_DATA_ARRAY_SIZE - 1] != idx_last_compare)) ++ goto err; ++ ++ return LRNG_SELFTEST_PASSED; ++ ++err: ++ pr_err("LRNG data array self-test FAILED\n"); ++ return LRNG_SEFLTEST_ERROR_TIME; ++} ++ ++static unsigned int lrng_gcd_selftest(void) ++{ ++ u32 history[10]; ++ unsigned int i; ++ ++#define LRNG_GCD_SELFTEST 3 ++ for (i = 0; i < ARRAY_SIZE(history); i++) ++ history[i] = i * LRNG_GCD_SELFTEST; ++ ++ if (lrng_gcd_analyze(history, ARRAY_SIZE(history)) == LRNG_GCD_SELFTEST) ++ return LRNG_SELFTEST_PASSED; ++ ++ pr_err("LRNG GCD self-test FAILED\n"); ++ return LRNG_SEFLTEST_ERROR_GCD; ++} ++ ++#else /* CONFIG_LRNG_IRQ */ ++ ++static unsigned int lrng_data_process_selftest(void) ++{ ++ return LRNG_SELFTEST_PASSED; ++} ++ ++static unsigned int lrng_gcd_selftest(void) ++{ ++ return LRNG_SELFTEST_PASSED; ++} ++ ++#endif /* CONFIG_LRNG_IRQ */ ++ ++static inline void lrng_selftest_bswap32(u32 *ptr, u32 words) ++{ ++ u32 i; ++ ++ /* Byte-swap data which is an LE representation */ ++ for (i = 0; i < words; i++) { ++ __le32 *p = (__le32 *)ptr; ++ ++ *p = cpu_to_le32(*ptr); ++ ptr++; ++ } ++} ++ ++/* The test vectors are taken from crypto/testmgr.h */ ++static unsigned int lrng_hash_selftest(void) ++{ ++ SHASH_DESC_ON_STACK(shash, NULL); ++ const struct lrng_crypto_cb *crypto_cb = &lrng_cc20_crypto_cb; ++ static const u8 lrng_hash_selftest_result[] = ++#ifdef CONFIG_CRYPTO_LIB_SHA256 ++ { 0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea, ++ 0x41, 0x41, 0x40, 0xde, 0x5d, 0xae, 0x22, 0x23, ++ 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c, ++ 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad }; ++#else /* CONFIG_CRYPTO_LIB_SHA256 */ ++ { 0xa9, 0x99, 0x3e, 0x36, 0x47, 0x06, 0x81, 0x6a, 0xba, 0x3e, ++ 0x25, 0x71, 0x78, 0x50, 0xc2, 0x6c, 0x9c, 0xd0, 0xd8, 0x9d }; ++#endif /* CONFIG_CRYPTO_LIB_SHA256 */ ++ static const u8 hash_input[] = { 0x61, 0x62, 0x63 }; /* "abc" */ ++ u8 digest[sizeof(lrng_hash_selftest_result)] __aligned(sizeof(u32)); ++ ++ BUG_ON(sizeof(digest) != crypto_cb->lrng_hash_digestsize(NULL)); ++ ++ if (!crypto_cb->lrng_hash_init(shash, NULL) && ++ !crypto_cb->lrng_hash_update(shash, hash_input, ++ sizeof(hash_input)) && ++ !crypto_cb->lrng_hash_final(shash, digest) && ++ !memcmp(digest, lrng_hash_selftest_result, sizeof(digest))) ++ return 0; ++ ++ pr_err("LRNG %s Hash self-test FAILED\n", crypto_cb->lrng_hash_name()); ++ return LRNG_SEFLTEST_ERROR_HASH; ++} ++ ++/* ++ * The test vectors were generated using the ChaCha20 DRNG from ++ * https://www.chronox.de/chacha20.html ++ */ ++static unsigned int lrng_chacha20_drng_selftest(void) ++{ ++ const struct lrng_crypto_cb *crypto_cb = &lrng_cc20_crypto_cb; ++ u8 seed[CHACHA_KEY_SIZE * 2] = { ++ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, ++ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, ++ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, ++ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, ++ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, ++ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, ++ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, ++ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, ++ }; ++ struct chacha20_block chacha20; ++ int ret; ++ u8 outbuf[CHACHA_KEY_SIZE * 2] __aligned(sizeof(u32)); ++ ++ /* ++ * Expected result when ChaCha20 DRNG state is zero: ++ * * constants are set to "expand 32-byte k" ++ * * remaining state is 0 ++ * and pulling one half ChaCha20 DRNG block. ++ */ ++ static const u8 expected_halfblock[CHACHA_KEY_SIZE] = { ++ 0x76, 0xb8, 0xe0, 0xad, 0xa0, 0xf1, 0x3d, 0x90, ++ 0x40, 0x5d, 0x6a, 0xe5, 0x53, 0x86, 0xbd, 0x28, ++ 0xbd, 0xd2, 0x19, 0xb8, 0xa0, 0x8d, 0xed, 0x1a, ++ 0xa8, 0x36, 0xef, 0xcc, 0x8b, 0x77, 0x0d, 0xc7 }; ++ ++ /* ++ * Expected result when ChaCha20 DRNG state is zero: ++ * * constants are set to "expand 32-byte k" ++ * * remaining state is 0 ++ * followed by a reseed with two keyblocks ++ * 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, ++ * 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, ++ * 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, ++ * 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, ++ * 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, ++ * 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, ++ * 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, ++ * 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f ++ * and pulling one ChaCha20 DRNG block. ++ */ ++ static const u8 expected_oneblock[CHACHA_KEY_SIZE * 2] = { ++ 0xe3, 0xb0, 0x8a, 0xcc, 0x34, 0xc3, 0x17, 0x0e, ++ 0xc3, 0xd8, 0xc3, 0x40, 0xe7, 0x73, 0xe9, 0x0d, ++ 0xd1, 0x62, 0xa3, 0x5d, 0x7d, 0xf2, 0xf1, 0x4a, ++ 0x24, 0x42, 0xb7, 0x1e, 0xb0, 0x05, 0x17, 0x07, ++ 0xb9, 0x35, 0x10, 0x69, 0x8b, 0x46, 0xfb, 0x51, ++ 0xe9, 0x91, 0x3f, 0x46, 0xf2, 0x4d, 0xea, 0xd0, ++ 0x81, 0xc1, 0x1b, 0xa9, 0x5d, 0x52, 0x91, 0x5f, ++ 0xcd, 0xdc, 0xc6, 0xd6, 0xc3, 0x7c, 0x50, 0x23 }; ++ ++ /* ++ * Expected result when ChaCha20 DRNG state is zero: ++ * * constants are set to "expand 32-byte k" ++ * * remaining state is 0 ++ * followed by a reseed with one key block plus one byte ++ * 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, ++ * 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, ++ * 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, ++ * 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, ++ * 0x20 ++ * and pulling less than one ChaCha20 DRNG block. ++ */ ++ static const u8 expected_block_nonalinged[CHACHA_KEY_SIZE + 4] = { ++ 0x9c, 0xfc, 0x5e, 0x31, 0x21, 0x62, 0x11, 0x85, ++ 0xd3, 0x77, 0xd3, 0x69, 0x0f, 0xa8, 0x16, 0x55, ++ 0xb4, 0x4c, 0xf6, 0x52, 0xf3, 0xa8, 0x37, 0x99, ++ 0x38, 0x76, 0xa0, 0x66, 0xec, 0xbb, 0xce, 0xa9, ++ 0x9c, 0x95, 0xa1, 0xfd }; ++ ++ BUILD_BUG_ON(sizeof(seed) % sizeof(u32)); ++ ++ memset(&chacha20, 0, sizeof(chacha20)); ++ lrng_cc20_init_rfc7539(&chacha20); ++ lrng_selftest_bswap32((u32 *)seed, sizeof(seed) / sizeof(u32)); ++ ++ /* Generate with zero state */ ++ ret = crypto_cb->lrng_drng_generate_helper(&chacha20, outbuf, ++ sizeof(expected_halfblock)); ++ if (ret != sizeof(expected_halfblock)) ++ goto err; ++ if (memcmp(outbuf, expected_halfblock, sizeof(expected_halfblock))) ++ goto err; ++ ++ /* Clear state of DRNG */ ++ memset(&chacha20.key.u[0], 0, 48); ++ ++ /* Reseed with 2 key blocks */ ++ ret = crypto_cb->lrng_drng_seed_helper(&chacha20, seed, ++ sizeof(expected_oneblock)); ++ if (ret < 0) ++ goto err; ++ ret = crypto_cb->lrng_drng_generate_helper(&chacha20, outbuf, ++ sizeof(expected_oneblock)); ++ if (ret != sizeof(expected_oneblock)) ++ goto err; ++ if (memcmp(outbuf, expected_oneblock, sizeof(expected_oneblock))) ++ goto err; ++ ++ /* Clear state of DRNG */ ++ memset(&chacha20.key.u[0], 0, 48); ++ ++ /* Reseed with 1 key block and one byte */ ++ ret = crypto_cb->lrng_drng_seed_helper(&chacha20, seed, ++ sizeof(expected_block_nonalinged)); ++ if (ret < 0) ++ goto err; ++ ret = crypto_cb->lrng_drng_generate_helper(&chacha20, outbuf, ++ sizeof(expected_block_nonalinged)); ++ if (ret != sizeof(expected_block_nonalinged)) ++ goto err; ++ if (memcmp(outbuf, expected_block_nonalinged, ++ sizeof(expected_block_nonalinged))) ++ goto err; ++ ++ return LRNG_SELFTEST_PASSED; ++ ++err: ++ pr_err("LRNG ChaCha20 DRNG self-test FAILED\n"); ++ return LRNG_SEFLTEST_ERROR_CHACHA20; ++} ++ ++static unsigned int lrng_selftest_status = LRNG_SELFTEST_NOT_EXECUTED; ++ ++static int lrng_selftest(void) ++{ ++ unsigned int ret = lrng_data_process_selftest(); ++ ++ ret |= lrng_chacha20_drng_selftest(); ++ ret |= lrng_hash_selftest(); ++ ret |= lrng_gcd_selftest(); ++ ++ if (ret) { ++ if (IS_ENABLED(CONFIG_LRNG_SELFTEST_PANIC)) ++ panic("LRNG self-tests failed: %u\n", ret); ++ } else { ++ pr_info("LRNG self-tests passed\n"); ++ } ++ ++ lrng_selftest_status = ret; ++ ++ if (lrng_selftest_status) ++ return -EFAULT; ++ return 0; ++} ++ ++#ifdef CONFIG_SYSFS ++/* Re-perform self-test when any value is written to the sysfs file. */ ++static int lrng_selftest_sysfs_set(const char *val, ++ const struct kernel_param *kp) ++{ ++ return lrng_selftest(); ++} ++ ++static const struct kernel_param_ops lrng_selftest_sysfs = { ++ .set = lrng_selftest_sysfs_set, ++ .get = param_get_uint, ++}; ++module_param_cb(selftest_status, &lrng_selftest_sysfs, &lrng_selftest_status, ++ 0644); ++#endif /* CONFIG_SYSFS */ ++ ++static int __init lrng_selftest_init(void) ++{ ++ return lrng_selftest(); ++} ++ ++module_init(lrng_selftest_init); +diff -urN linux-5.15/drivers/char/lrng/lrng_switch.c linux-5.15-lrng/drivers/char/lrng/lrng_switch.c +--- linux-5.15/drivers/char/lrng/lrng_switch.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_switch.c 2021-11-29 12:37:19.323279070 +1100 +@@ -0,0 +1,226 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * LRNG DRNG switching support ++ * ++ * Copyright (C) 2016 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/lrng.h> ++ ++#include "lrng_internal.h" ++ ++static int lrng_drng_switch(struct lrng_drng *drng_store, ++ const struct lrng_crypto_cb *cb, int node) ++{ ++ const struct lrng_crypto_cb *old_cb; ++ unsigned long flags = 0, flags2 = 0; ++ int ret; ++ u8 seed[LRNG_DRNG_SECURITY_STRENGTH_BYTES]; ++ void *new_drng = cb->lrng_drng_alloc(LRNG_DRNG_SECURITY_STRENGTH_BYTES); ++ void *old_drng, *new_hash, *old_hash; ++ u32 current_security_strength; ++ bool sl = false, reset_drng = !lrng_get_available(); ++ ++ if (IS_ERR(new_drng)) { ++ pr_warn("could not allocate new DRNG for NUMA node %d (%ld)\n", ++ node, PTR_ERR(new_drng)); ++ return PTR_ERR(new_drng); ++ } ++ ++ new_hash = cb->lrng_hash_alloc(); ++ if (IS_ERR(new_hash)) { ++ pr_warn("could not allocate new LRNG pool hash (%ld)\n", ++ PTR_ERR(new_hash)); ++ cb->lrng_drng_dealloc(new_drng); ++ return PTR_ERR(new_hash); ++ } ++ ++ if (cb->lrng_hash_digestsize(new_hash) > LRNG_MAX_DIGESTSIZE) { ++ pr_warn("digest size of newly requested hash too large\n"); ++ cb->lrng_hash_dealloc(new_hash); ++ cb->lrng_drng_dealloc(new_drng); ++ return -EINVAL; ++ } ++ ++ current_security_strength = lrng_security_strength(); ++ lrng_drng_lock(drng_store, &flags); ++ ++ /* ++ * Pull from existing DRNG to seed new DRNG regardless of seed status ++ * of old DRNG -- the entropy state for the DRNG is left unchanged which ++ * implies that als the new DRNG is reseeded when deemed necessary. This ++ * seeding of the new DRNG shall only ensure that the new DRNG has the ++ * same entropy as the old DRNG. ++ */ ++ ret = drng_store->crypto_cb->lrng_drng_generate_helper( ++ drng_store->drng, seed, sizeof(seed)); ++ lrng_drng_unlock(drng_store, &flags); ++ ++ if (ret < 0) { ++ reset_drng = true; ++ pr_warn("getting random data from DRNG failed for NUMA node %d (%d)\n", ++ node, ret); ++ } else { ++ /* seed new DRNG with data */ ++ ret = cb->lrng_drng_seed_helper(new_drng, seed, ret); ++ memzero_explicit(seed, sizeof(seed)); ++ if (ret < 0) { ++ reset_drng = true; ++ pr_warn("seeding of new DRNG failed for NUMA node %d (%d)\n", ++ node, ret); ++ } else { ++ pr_debug("seeded new DRNG of NUMA node %d instance from old DRNG instance\n", ++ node); ++ } ++ } ++ ++ mutex_lock(&drng_store->lock); ++ write_lock_irqsave(&drng_store->hash_lock, flags2); ++ /* ++ * If we switch the DRNG from the initial ChaCha20 DRNG to something ++ * else, there is a lock transition from spin lock to mutex (see ++ * lrng_drng_is_atomic and how the lock is taken in lrng_drng_lock). ++ * Thus, we need to take both locks during the transition phase. ++ */ ++ if (lrng_drng_is_atomic(drng_store)) { ++ spin_lock_irqsave(&drng_store->spin_lock, flags); ++ sl = true; ++ } else { ++ __acquire(&drng_store->spin_lock); ++ } ++ ++ /* Trigger the switch of the aux entropy pool for current node. */ ++ if (drng_store == lrng_drng_init_instance()) { ++ ret = lrng_aux_switch_hash(cb, new_hash, drng_store->crypto_cb); ++ if (ret) ++ goto err; ++ } ++ ++ /* Trigger the switch of the per-CPU entropy pools for current node. */ ++ ret = lrng_pcpu_switch_hash(node, cb, new_hash, drng_store->crypto_cb); ++ if (ret) { ++ /* Switch the crypto operation back to be consistent */ ++ WARN_ON(lrng_aux_switch_hash(drng_store->crypto_cb, ++ drng_store->hash, cb)); ++ } else { ++ if (reset_drng) ++ lrng_drng_reset(drng_store); ++ ++ old_drng = drng_store->drng; ++ old_cb = drng_store->crypto_cb; ++ drng_store->drng = new_drng; ++ drng_store->crypto_cb = cb; ++ ++ old_hash = drng_store->hash; ++ drng_store->hash = new_hash; ++ pr_info("Entropy pool read-hash allocated for DRNG for NUMA node %d\n", ++ node); ++ ++ /* Reseed if previous LRNG security strength was insufficient */ ++ if (current_security_strength < lrng_security_strength()) ++ drng_store->force_reseed = true; ++ ++ /* Force oversampling seeding as we initialize DRNG */ ++ if (IS_ENABLED(CONFIG_LRNG_OVERSAMPLE_ENTROPY_SOURCES)) ++ lrng_unset_fully_seeded(drng_store); ++ ++ if (lrng_state_min_seeded()) ++ lrng_set_entropy_thresh(lrng_get_seed_entropy_osr( ++ drng_store->fully_seeded)); ++ ++ /* ChaCha20 serves as atomic instance left untouched. */ ++ if (old_drng != &chacha20) { ++ old_cb->lrng_drng_dealloc(old_drng); ++ old_cb->lrng_hash_dealloc(old_hash); ++ } ++ ++ pr_info("DRNG of NUMA node %d switched\n", node); ++ } ++ ++err: ++ if (sl) ++ spin_unlock_irqrestore(&drng_store->spin_lock, flags); ++ else ++ __release(&drng_store->spin_lock); ++ write_unlock_irqrestore(&drng_store->hash_lock, flags2); ++ mutex_unlock(&drng_store->lock); ++ ++ return ret; ++} ++ ++/* ++ * Switch the existing DRNG instances with new using the new crypto callbacks. ++ * The caller must hold the lrng_crypto_cb_update lock. ++ */ ++static int lrng_drngs_switch(const struct lrng_crypto_cb *cb) ++{ ++ struct lrng_drng **lrng_drng = lrng_drng_instances(); ++ struct lrng_drng *lrng_drng_init = lrng_drng_init_instance(); ++ int ret = 0; ++ ++ /* Update DRNG */ ++ if (lrng_drng) { ++ u32 node; ++ ++ for_each_online_node(node) { ++ if (lrng_drng[node]) ++ ret = lrng_drng_switch(lrng_drng[node], cb, ++ node); ++ } ++ } else { ++ ret = lrng_drng_switch(lrng_drng_init, cb, 0); ++ } ++ ++ if (!ret) ++ lrng_set_available(); ++ ++ return 0; ++} ++ ++/* ++ * lrng_set_drng_cb - Register new cryptographic callback functions for DRNG ++ * The registering implies that all old DRNG states are replaced with new ++ * DRNG states. ++ * ++ * @cb: Callback functions to be registered -- if NULL, use the default ++ * callbacks pointing to the ChaCha20 DRNG. ++ * ++ * Return: ++ * * 0 on success ++ * * < 0 on error ++ */ ++int lrng_set_drng_cb(const struct lrng_crypto_cb *cb) ++{ ++ struct lrng_drng *lrng_drng_init = lrng_drng_init_instance(); ++ int ret; ++ ++ if (!cb) ++ cb = &lrng_cc20_crypto_cb; ++ ++ mutex_lock(&lrng_crypto_cb_update); ++ ++ /* ++ * If a callback other than the default is set, allow it only to be ++ * set back to the default callback. This ensures that multiple ++ * different callbacks can be registered at the same time. If a ++ * callback different from the current callback and the default ++ * callback shall be set, the current callback must be deregistered ++ * (e.g. the kernel module providing it must be unloaded) and the new ++ * implementation can be registered. ++ */ ++ if ((cb != &lrng_cc20_crypto_cb) && ++ (lrng_drng_init->crypto_cb != &lrng_cc20_crypto_cb)) { ++ pr_warn("disallow setting new cipher callbacks, unload the old callbacks first!\n"); ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ ret = lrng_drngs_switch(cb); ++ ++out: ++ mutex_unlock(&lrng_crypto_cb_update); ++ return ret; ++} ++EXPORT_SYMBOL(lrng_set_drng_cb); +diff -urN linux-5.15/drivers/char/lrng/lrng_testing.c linux-5.15-lrng/drivers/char/lrng/lrng_testing.c +--- linux-5.15/drivers/char/lrng/lrng_testing.c 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/drivers/char/lrng/lrng_testing.c 2021-11-29 12:38:19.263278841 +1100 +@@ -0,0 +1,689 @@ ++// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++/* ++ * Linux Random Number Generator (LRNG) testing interfaces ++ * ++ * Copyright (C) 2019 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/atomic.h> ++#include <linux/bug.h> ++#include <linux/debugfs.h> ++#include <linux/lrng.h> ++#include <linux/module.h> ++#include <linux/sched.h> ++#include <linux/sched/signal.h> ++#include <linux/slab.h> ++#include <linux/string.h> ++#include <linux/types.h> ++#include <linux/uaccess.h> ++#include <linux/workqueue.h> ++#include <asm/errno.h> ++ ++#include "lrng_internal.h" ++ ++#define LRNG_TESTING_RINGBUFFER_SIZE 1024 ++#define LRNG_TESTING_RINGBUFFER_MASK (LRNG_TESTING_RINGBUFFER_SIZE - 1) ++ ++struct lrng_testing { ++ u32 lrng_testing_rb[LRNG_TESTING_RINGBUFFER_SIZE]; ++ u32 rb_reader; ++ u32 rb_writer; ++ atomic_t lrng_testing_enabled; ++ spinlock_t lock; ++ wait_queue_head_t read_wait; ++}; ++ ++/*************************** Generic Data Handling ****************************/ ++ ++/* ++ * boot variable: ++ * 0 ==> No boot test, gathering of runtime data allowed ++ * 1 ==> Boot test enabled and ready for collecting data, gathering runtime ++ * data is disabled ++ * 2 ==> Boot test completed and disabled, gathering of runtime data is ++ * disabled ++ */ ++ ++static inline void lrng_testing_reset(struct lrng_testing *data) ++{ ++ unsigned long flags; ++ ++ spin_lock_irqsave(&data->lock, flags); ++ data->rb_reader = 0; ++ data->rb_writer = 0; ++ spin_unlock_irqrestore(&data->lock, flags); ++} ++ ++static inline void lrng_testing_init(struct lrng_testing *data, u32 boot) ++{ ++ /* ++ * The boot time testing implies we have a running test. If the ++ * caller wants to clear it, he has to unset the boot_test flag ++ * at runtime via sysfs to enable regular runtime testing ++ */ ++ if (boot) ++ return; ++ ++ lrng_testing_reset(data); ++ atomic_set(&data->lrng_testing_enabled, 1); ++ pr_warn("Enabling data collection\n"); ++} ++ ++static inline void lrng_testing_fini(struct lrng_testing *data, u32 boot) ++{ ++ /* If we have boot data, we do not reset yet to allow data to be read */ ++ if (boot) ++ return; ++ ++ atomic_set(&data->lrng_testing_enabled, 0); ++ lrng_testing_reset(data); ++ pr_warn("Disabling data collection\n"); ++} ++ ++static inline bool lrng_testing_store(struct lrng_testing *data, u32 value, ++ u32 *boot) ++{ ++ unsigned long flags; ++ ++ if (!atomic_read(&data->lrng_testing_enabled) && (*boot != 1)) ++ return false; ++ ++ spin_lock_irqsave(&data->lock, flags); ++ ++ /* ++ * Disable entropy testing for boot time testing after ring buffer ++ * is filled. ++ */ ++ if (*boot) { ++ if (data->rb_writer > LRNG_TESTING_RINGBUFFER_SIZE) { ++ *boot = 2; ++ pr_warn_once("One time data collection test disabled\n"); ++ spin_unlock_irqrestore(&data->lock, flags); ++ return false; ++ } ++ ++ if (data->rb_writer == 1) ++ pr_warn("One time data collection test enabled\n"); ++ } ++ ++ data->lrng_testing_rb[data->rb_writer & LRNG_TESTING_RINGBUFFER_MASK] = ++ value; ++ data->rb_writer++; ++ ++ spin_unlock_irqrestore(&data->lock, flags); ++ ++ if (wq_has_sleeper(&data->read_wait)) ++ wake_up_interruptible(&data->read_wait); ++ ++ return true; ++} ++ ++static inline bool lrng_testing_have_data(struct lrng_testing *data) ++{ ++ return ((data->rb_writer & LRNG_TESTING_RINGBUFFER_MASK) != ++ (data->rb_reader & LRNG_TESTING_RINGBUFFER_MASK)); ++} ++ ++static inline int lrng_testing_reader(struct lrng_testing *data, u32 *boot, ++ u8 *outbuf, u32 outbuflen) ++{ ++ unsigned long flags; ++ int collected_data = 0; ++ ++ lrng_testing_init(data, *boot); ++ ++ while (outbuflen) { ++ spin_lock_irqsave(&data->lock, flags); ++ ++ /* We have no data or reached the writer. */ ++ if (!data->rb_writer || ++ (data->rb_writer == data->rb_reader)) { ++ ++ spin_unlock_irqrestore(&data->lock, flags); ++ ++ /* ++ * Now we gathered all boot data, enable regular data ++ * collection. ++ */ ++ if (*boot) { ++ *boot = 0; ++ goto out; ++ } ++ ++ wait_event_interruptible(data->read_wait, ++ lrng_testing_have_data(data)); ++ if (signal_pending(current)) { ++ collected_data = -ERESTARTSYS; ++ goto out; ++ } ++ ++ continue; ++ } ++ ++ /* We copy out word-wise */ ++ if (outbuflen < sizeof(u32)) { ++ spin_unlock_irqrestore(&data->lock, flags); ++ goto out; ++ } ++ ++ memcpy(outbuf, &data->lrng_testing_rb[data->rb_reader], ++ sizeof(u32)); ++ data->rb_reader++; ++ ++ spin_unlock_irqrestore(&data->lock, flags); ++ ++ outbuf += sizeof(u32); ++ outbuflen -= sizeof(u32); ++ collected_data += sizeof(u32); ++ } ++ ++out: ++ lrng_testing_fini(data, *boot); ++ return collected_data; ++} ++ ++static int lrng_testing_extract_user(struct file *file, char __user *buf, ++ size_t nbytes, loff_t *ppos, ++ int (*reader)(u8 *outbuf, u32 outbuflen)) ++{ ++ u8 *tmp, *tmp_aligned; ++ int ret = 0, large_request = (nbytes > 256); ++ ++ if (!nbytes) ++ return 0; ++ ++ /* ++ * The intention of this interface is for collecting at least ++ * 1000 samples due to the SP800-90B requirements. So, we make no ++ * effort in avoiding allocating more memory that actually needed ++ * by the user. Hence, we allocate sufficient memory to always hold ++ * that amount of data. ++ */ ++ tmp = kmalloc(LRNG_TESTING_RINGBUFFER_SIZE + sizeof(u32), GFP_KERNEL); ++ if (!tmp) ++ return -ENOMEM; ++ ++ tmp_aligned = PTR_ALIGN(tmp, sizeof(u32)); ++ ++ while (nbytes) { ++ int i; ++ ++ if (large_request && need_resched()) { ++ if (signal_pending(current)) { ++ if (ret == 0) ++ ret = -ERESTARTSYS; ++ break; ++ } ++ schedule(); ++ } ++ ++ i = min_t(int, nbytes, LRNG_TESTING_RINGBUFFER_SIZE); ++ i = reader(tmp_aligned, i); ++ if (i <= 0) { ++ if (i < 0) ++ ret = i; ++ break; ++ } ++ if (copy_to_user(buf, tmp_aligned, i)) { ++ ret = -EFAULT; ++ break; ++ } ++ ++ nbytes -= i; ++ buf += i; ++ ret += i; ++ } ++ ++ kfree_sensitive(tmp); ++ ++ if (ret > 0) ++ *ppos += ret; ++ ++ return ret; ++} ++ ++/************** Raw High-Resolution Timer Entropy Data Handling ***************/ ++ ++#ifdef CONFIG_LRNG_RAW_HIRES_ENTROPY ++ ++static u32 boot_raw_hires_test = 0; ++module_param(boot_raw_hires_test, uint, 0644); ++MODULE_PARM_DESC(boot_raw_hires_test, "Enable gathering boot time high resolution timer entropy of the first entropy events"); ++ ++static struct lrng_testing lrng_raw_hires = { ++ .rb_reader = 0, ++ .rb_writer = 0, ++ .lock = __SPIN_LOCK_UNLOCKED(lrng_raw_hires.lock), ++ .read_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lrng_raw_hires.read_wait) ++}; ++ ++bool lrng_raw_hires_entropy_store(u32 value) ++{ ++ return lrng_testing_store(&lrng_raw_hires, value, &boot_raw_hires_test); ++} ++ ++static int lrng_raw_hires_entropy_reader(u8 *outbuf, u32 outbuflen) ++{ ++ return lrng_testing_reader(&lrng_raw_hires, &boot_raw_hires_test, ++ outbuf, outbuflen); ++} ++ ++static ssize_t lrng_raw_hires_read(struct file *file, char __user *to, ++ size_t count, loff_t *ppos) ++{ ++ return lrng_testing_extract_user(file, to, count, ppos, ++ lrng_raw_hires_entropy_reader); ++} ++ ++static const struct file_operations lrng_raw_hires_fops = { ++ .owner = THIS_MODULE, ++ .read = lrng_raw_hires_read, ++}; ++ ++#endif /* CONFIG_LRNG_RAW_HIRES_ENTROPY */ ++ ++/********************* Raw Jiffies Entropy Data Handling **********************/ ++ ++#ifdef CONFIG_LRNG_RAW_JIFFIES_ENTROPY ++ ++static u32 boot_raw_jiffies_test = 0; ++module_param(boot_raw_jiffies_test, uint, 0644); ++MODULE_PARM_DESC(boot_raw_jiffies_test, "Enable gathering boot time high resolution timer entropy of the first entropy events"); ++ ++static struct lrng_testing lrng_raw_jiffies = { ++ .rb_reader = 0, ++ .rb_writer = 0, ++ .lock = __SPIN_LOCK_UNLOCKED(lrng_raw_jiffies.lock), ++ .read_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lrng_raw_jiffies.read_wait) ++}; ++ ++bool lrng_raw_jiffies_entropy_store(u32 value) ++{ ++ return lrng_testing_store(&lrng_raw_jiffies, value, ++ &boot_raw_jiffies_test); ++} ++ ++static int lrng_raw_jiffies_entropy_reader(u8 *outbuf, u32 outbuflen) ++{ ++ return lrng_testing_reader(&lrng_raw_jiffies, &boot_raw_jiffies_test, ++ outbuf, outbuflen); ++} ++ ++static ssize_t lrng_raw_jiffies_read(struct file *file, char __user *to, ++ size_t count, loff_t *ppos) ++{ ++ return lrng_testing_extract_user(file, to, count, ppos, ++ lrng_raw_jiffies_entropy_reader); ++} ++ ++static const struct file_operations lrng_raw_jiffies_fops = { ++ .owner = THIS_MODULE, ++ .read = lrng_raw_jiffies_read, ++}; ++ ++#endif /* CONFIG_LRNG_RAW_JIFFIES_ENTROPY */ ++ ++/************************** Raw IRQ Data Handling ****************************/ ++ ++#ifdef CONFIG_LRNG_RAW_IRQ_ENTROPY ++ ++static u32 boot_raw_irq_test = 0; ++module_param(boot_raw_irq_test, uint, 0644); ++MODULE_PARM_DESC(boot_raw_irq_test, "Enable gathering boot time entropy of the first IRQ entropy events"); ++ ++static struct lrng_testing lrng_raw_irq = { ++ .rb_reader = 0, ++ .rb_writer = 0, ++ .lock = __SPIN_LOCK_UNLOCKED(lrng_raw_irq.lock), ++ .read_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lrng_raw_irq.read_wait) ++}; ++ ++bool lrng_raw_irq_entropy_store(u32 value) ++{ ++ return lrng_testing_store(&lrng_raw_irq, value, &boot_raw_irq_test); ++} ++ ++static int lrng_raw_irq_entropy_reader(u8 *outbuf, u32 outbuflen) ++{ ++ return lrng_testing_reader(&lrng_raw_irq, &boot_raw_irq_test, outbuf, ++ outbuflen); ++} ++ ++static ssize_t lrng_raw_irq_read(struct file *file, char __user *to, ++ size_t count, loff_t *ppos) ++{ ++ return lrng_testing_extract_user(file, to, count, ppos, ++ lrng_raw_irq_entropy_reader); ++} ++ ++static const struct file_operations lrng_raw_irq_fops = { ++ .owner = THIS_MODULE, ++ .read = lrng_raw_irq_read, ++}; ++ ++#endif /* CONFIG_LRNG_RAW_IRQ_ENTROPY */ ++ ++/************************ Raw IRQFLAGS Data Handling **************************/ ++ ++#ifdef CONFIG_LRNG_RAW_IRQFLAGS_ENTROPY ++ ++static u32 boot_raw_irqflags_test = 0; ++module_param(boot_raw_irqflags_test, uint, 0644); ++MODULE_PARM_DESC(boot_raw_irqflags_test, "Enable gathering boot time entropy of the first IRQ flags entropy events"); ++ ++static struct lrng_testing lrng_raw_irqflags = { ++ .rb_reader = 0, ++ .rb_writer = 0, ++ .lock = __SPIN_LOCK_UNLOCKED(lrng_raw_irqflags.lock), ++ .read_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lrng_raw_irqflags.read_wait) ++}; ++ ++bool lrng_raw_irqflags_entropy_store(u32 value) ++{ ++ return lrng_testing_store(&lrng_raw_irqflags, value, ++ &boot_raw_irqflags_test); ++} ++ ++static int lrng_raw_irqflags_entropy_reader(u8 *outbuf, u32 outbuflen) ++{ ++ return lrng_testing_reader(&lrng_raw_irqflags, &boot_raw_irqflags_test, ++ outbuf, outbuflen); ++} ++ ++static ssize_t lrng_raw_irqflags_read(struct file *file, char __user *to, ++ size_t count, loff_t *ppos) ++{ ++ return lrng_testing_extract_user(file, to, count, ppos, ++ lrng_raw_irqflags_entropy_reader); ++} ++ ++static const struct file_operations lrng_raw_irqflags_fops = { ++ .owner = THIS_MODULE, ++ .read = lrng_raw_irqflags_read, ++}; ++ ++#endif /* CONFIG_LRNG_RAW_IRQFLAGS_ENTROPY */ ++ ++/************************ Raw _RET_IP_ Data Handling **************************/ ++ ++#ifdef CONFIG_LRNG_RAW_RETIP_ENTROPY ++ ++static u32 boot_raw_retip_test = 0; ++module_param(boot_raw_retip_test, uint, 0644); ++MODULE_PARM_DESC(boot_raw_retip_test, "Enable gathering boot time entropy of the first return instruction pointer entropy events"); ++ ++static struct lrng_testing lrng_raw_retip = { ++ .rb_reader = 0, ++ .rb_writer = 0, ++ .lock = __SPIN_LOCK_UNLOCKED(lrng_raw_retip.lock), ++ .read_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lrng_raw_retip.read_wait) ++}; ++ ++bool lrng_raw_retip_entropy_store(u32 value) ++{ ++ return lrng_testing_store(&lrng_raw_retip, value, &boot_raw_retip_test); ++} ++ ++static int lrng_raw_retip_entropy_reader(u8 *outbuf, u32 outbuflen) ++{ ++ return lrng_testing_reader(&lrng_raw_retip, &boot_raw_retip_test, ++ outbuf, outbuflen); ++} ++ ++static ssize_t lrng_raw_retip_read(struct file *file, char __user *to, ++ size_t count, loff_t *ppos) ++{ ++ return lrng_testing_extract_user(file, to, count, ppos, ++ lrng_raw_retip_entropy_reader); ++} ++ ++static const struct file_operations lrng_raw_retip_fops = { ++ .owner = THIS_MODULE, ++ .read = lrng_raw_retip_read, ++}; ++ ++#endif /* CONFIG_LRNG_RAW_RETIP_ENTROPY */ ++ ++/********************** Raw IRQ register Data Handling ************************/ ++ ++#ifdef CONFIG_LRNG_RAW_REGS_ENTROPY ++ ++static u32 boot_raw_regs_test = 0; ++module_param(boot_raw_regs_test, uint, 0644); ++MODULE_PARM_DESC(boot_raw_regs_test, "Enable gathering boot time entropy of the first interrupt register entropy events"); ++ ++static struct lrng_testing lrng_raw_regs = { ++ .rb_reader = 0, ++ .rb_writer = 0, ++ .lock = __SPIN_LOCK_UNLOCKED(lrng_raw_regs.lock), ++ .read_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lrng_raw_regs.read_wait) ++}; ++ ++bool lrng_raw_regs_entropy_store(u32 value) ++{ ++ return lrng_testing_store(&lrng_raw_regs, value, &boot_raw_regs_test); ++} ++ ++static int lrng_raw_regs_entropy_reader(u8 *outbuf, u32 outbuflen) ++{ ++ return lrng_testing_reader(&lrng_raw_regs, &boot_raw_regs_test, ++ outbuf, outbuflen); ++} ++ ++static ssize_t lrng_raw_regs_read(struct file *file, char __user *to, ++ size_t count, loff_t *ppos) ++{ ++ return lrng_testing_extract_user(file, to, count, ppos, ++ lrng_raw_regs_entropy_reader); ++} ++ ++static const struct file_operations lrng_raw_regs_fops = { ++ .owner = THIS_MODULE, ++ .read = lrng_raw_regs_read, ++}; ++ ++#endif /* CONFIG_LRNG_RAW_REGS_ENTROPY */ ++ ++/********************** Raw Entropy Array Data Handling ***********************/ ++ ++#ifdef CONFIG_LRNG_RAW_ARRAY ++ ++static u32 boot_raw_array = 0; ++module_param(boot_raw_array, uint, 0644); ++MODULE_PARM_DESC(boot_raw_array, "Enable gathering boot time raw noise array data of the first entropy events"); ++ ++static struct lrng_testing lrng_raw_array = { ++ .rb_reader = 0, ++ .rb_writer = 0, ++ .lock = __SPIN_LOCK_UNLOCKED(lrng_raw_array.lock), ++ .read_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lrng_raw_array.read_wait) ++}; ++ ++bool lrng_raw_array_entropy_store(u32 value) ++{ ++ return lrng_testing_store(&lrng_raw_array, value, &boot_raw_array); ++} ++ ++static int lrng_raw_array_entropy_reader(u8 *outbuf, u32 outbuflen) ++{ ++ return lrng_testing_reader(&lrng_raw_array, &boot_raw_array, outbuf, ++ outbuflen); ++} ++ ++static ssize_t lrng_raw_array_read(struct file *file, char __user *to, ++ size_t count, loff_t *ppos) ++{ ++ return lrng_testing_extract_user(file, to, count, ppos, ++ lrng_raw_array_entropy_reader); ++} ++ ++static const struct file_operations lrng_raw_array_fops = { ++ .owner = THIS_MODULE, ++ .read = lrng_raw_array_read, ++}; ++ ++#endif /* CONFIG_LRNG_RAW_ARRAY */ ++ ++/******************** Interrupt Performance Data Handling *********************/ ++ ++#ifdef CONFIG_LRNG_IRQ_PERF ++ ++static u32 boot_irq_perf = 0; ++module_param(boot_irq_perf, uint, 0644); ++MODULE_PARM_DESC(boot_irq_perf, "Enable gathering boot time interrupt performance data of the first entropy events"); ++ ++static struct lrng_testing lrng_irq_perf = { ++ .rb_reader = 0, ++ .rb_writer = 0, ++ .lock = __SPIN_LOCK_UNLOCKED(lrng_irq_perf.lock), ++ .read_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lrng_irq_perf.read_wait) ++}; ++ ++bool lrng_perf_time(u32 start) ++{ ++ return lrng_testing_store(&lrng_irq_perf, random_get_entropy() - start, ++ &boot_irq_perf); ++} ++ ++static int lrng_irq_perf_reader(u8 *outbuf, u32 outbuflen) ++{ ++ return lrng_testing_reader(&lrng_irq_perf, &boot_irq_perf, outbuf, ++ outbuflen); ++} ++ ++static ssize_t lrng_irq_perf_read(struct file *file, char __user *to, ++ size_t count, loff_t *ppos) ++{ ++ return lrng_testing_extract_user(file, to, count, ppos, ++ lrng_irq_perf_reader); ++} ++ ++static const struct file_operations lrng_irq_perf_fops = { ++ .owner = THIS_MODULE, ++ .read = lrng_irq_perf_read, ++}; ++ ++#endif /* CONFIG_LRNG_IRQ_PERF */ ++ ++/*********************************** ACVT ************************************/ ++ ++#ifdef CONFIG_LRNG_ACVT_HASH ++ ++/* maximum amount of data to be hashed as defined by ACVP */ ++#define LRNG_ACVT_MAX_SHA_MSG (65536 >> 3) ++ ++/* ++ * As we use static variables to store the data, it is clear that the ++ * test interface is only able to handle single threaded testing. This is ++ * considered to be sufficient for testing. If multi-threaded use of the ++ * ACVT test interface would be performed, the caller would get garbage ++ * but the kernel operation is unaffected by this. ++ */ ++static u8 lrng_acvt_hash_data[LRNG_ACVT_MAX_SHA_MSG] ++ __aligned(LRNG_KCAPI_ALIGN); ++static atomic_t lrng_acvt_hash_data_size = ATOMIC_INIT(0); ++static u8 lrng_acvt_hash_digest[LRNG_ATOMIC_DIGEST_SIZE]; ++ ++static ssize_t lrng_acvt_hash_write(struct file *file, const char __user *buf, ++ size_t nbytes, loff_t *ppos) ++{ ++ if (nbytes > LRNG_ACVT_MAX_SHA_MSG) ++ return -EINVAL; ++ ++ atomic_set(&lrng_acvt_hash_data_size, (int)nbytes); ++ ++ return simple_write_to_buffer(lrng_acvt_hash_data, ++ LRNG_ACVT_MAX_SHA_MSG, ppos, buf, nbytes); ++} ++ ++static ssize_t lrng_acvt_hash_read(struct file *file, char __user *to, ++ size_t count, loff_t *ppos) ++{ ++ SHASH_DESC_ON_STACK(shash, NULL); ++ const struct lrng_crypto_cb *crypto_cb = &lrng_cc20_crypto_cb; ++ ssize_t ret; ++ ++ if (count > LRNG_ATOMIC_DIGEST_SIZE) ++ return -EINVAL; ++ ++ ret = crypto_cb->lrng_hash_init(shash, NULL) ?: ++ crypto_cb->lrng_hash_update(shash, lrng_acvt_hash_data, ++ atomic_read_u32(&lrng_acvt_hash_data_size)) ?: ++ crypto_cb->lrng_hash_final(shash, lrng_acvt_hash_digest); ++ if (ret) ++ return ret; ++ ++ return simple_read_from_buffer(to, count, ppos, lrng_acvt_hash_digest, ++ sizeof(lrng_acvt_hash_digest)); ++} ++ ++static const struct file_operations lrng_acvt_hash_fops = { ++ .owner = THIS_MODULE, ++ .open = simple_open, ++ .llseek = default_llseek, ++ .read = lrng_acvt_hash_read, ++ .write = lrng_acvt_hash_write, ++}; ++ ++#endif /* CONFIG_LRNG_ACVT_DRNG */ ++ ++/************************************************************************** ++ * Debugfs interface ++ **************************************************************************/ ++ ++static int __init lrng_raw_init(void) ++{ ++ struct dentry *lrng_raw_debugfs_root; ++ ++ lrng_raw_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); ++ ++#ifdef CONFIG_LRNG_RAW_HIRES_ENTROPY ++ debugfs_create_file_unsafe("lrng_raw_hires", 0400, ++ lrng_raw_debugfs_root, NULL, ++ &lrng_raw_hires_fops); ++#endif ++#ifdef CONFIG_LRNG_RAW_JIFFIES_ENTROPY ++ debugfs_create_file_unsafe("lrng_raw_jiffies", 0400, ++ lrng_raw_debugfs_root, NULL, ++ &lrng_raw_jiffies_fops); ++#endif ++#ifdef CONFIG_LRNG_RAW_IRQ_ENTROPY ++ debugfs_create_file_unsafe("lrng_raw_irq", 0400, lrng_raw_debugfs_root, ++ NULL, &lrng_raw_irq_fops); ++#endif ++#ifdef CONFIG_LRNG_RAW_IRQFLAGS_ENTROPY ++ debugfs_create_file_unsafe("lrng_raw_irqflags", 0400, ++ lrng_raw_debugfs_root, NULL, ++ &lrng_raw_irqflags_fops); ++#endif ++#ifdef CONFIG_LRNG_RAW_RETIP_ENTROPY ++ debugfs_create_file_unsafe("lrng_raw_retip", 0400, ++ lrng_raw_debugfs_root, NULL, ++ &lrng_raw_retip_fops); ++#endif ++#ifdef CONFIG_LRNG_RAW_REGS_ENTROPY ++ debugfs_create_file_unsafe("lrng_raw_regs", 0400, ++ lrng_raw_debugfs_root, NULL, ++ &lrng_raw_regs_fops); ++#endif ++#ifdef CONFIG_LRNG_RAW_ARRAY ++ debugfs_create_file_unsafe("lrng_raw_array", 0400, ++ lrng_raw_debugfs_root, NULL, ++ &lrng_raw_array_fops); ++#endif ++#ifdef CONFIG_LRNG_IRQ_PERF ++ debugfs_create_file_unsafe("lrng_irq_perf", 0400, lrng_raw_debugfs_root, ++ NULL, &lrng_irq_perf_fops); ++#endif ++#ifdef CONFIG_LRNG_ACVT_HASH ++ debugfs_create_file_unsafe("lrng_acvt_hash", 0600, ++ lrng_raw_debugfs_root, NULL, ++ &lrng_acvt_hash_fops); ++#endif ++ ++ return 0; ++} ++ ++module_init(lrng_raw_init); +diff -urN linux-5.15/include/crypto/drbg.h linux-5.15-lrng/include/crypto/drbg.h +--- linux-5.15/include/crypto/drbg.h 2021-11-01 07:53:10.000000000 +1100 ++++ linux-5.15-lrng/include/crypto/drbg.h 2021-11-29 12:37:31.183279025 +1100 +@@ -278,4 +278,11 @@ + DRBG_PREFIX3 + }; + ++extern int drbg_alloc_state(struct drbg_state *drbg); ++extern void drbg_dealloc_state(struct drbg_state *drbg); ++extern void drbg_convert_tfm_core(const char *cra_driver_name, int *coreref, ++ bool *pr); ++extern const struct drbg_core drbg_cores[]; ++extern unsigned short drbg_sec_strength(drbg_flag_t flags); ++ + #endif /* _DRBG_H */ +diff -urN linux-5.15/include/crypto/internal/jitterentropy.h linux-5.15-lrng/include/crypto/internal/jitterentropy.h +--- linux-5.15/include/crypto/internal/jitterentropy.h 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/include/crypto/internal/jitterentropy.h 2021-11-29 12:37:52.903278942 +1100 +@@ -0,0 +1,17 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later ++ ++extern void *jent_zalloc(unsigned int len); ++extern void jent_zfree(void *ptr); ++extern int jent_fips_enabled(void); ++extern void jent_panic(char *s); ++extern void jent_memcpy(void *dest, const void *src, unsigned int n); ++extern void jent_get_nstime(__u64 *out); ++ ++struct rand_data; ++extern int jent_entropy_init(void); ++extern int jent_read_entropy(struct rand_data *ec, unsigned char *data, ++ unsigned int len); ++ ++extern struct rand_data *jent_entropy_collector_alloc(unsigned int osr, ++ unsigned int flags); ++extern void jent_entropy_collector_free(struct rand_data *entropy_collector); +diff -urN linux-5.15/include/linux/lrng.h linux-5.15-lrng/include/linux/lrng.h +--- linux-5.15/include/linux/lrng.h 1970-01-01 10:00:00.000000000 +1000 ++++ linux-5.15-lrng/include/linux/lrng.h 2021-11-29 12:36:52.113279174 +1100 +@@ -0,0 +1,81 @@ ++/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ ++/* ++ * Copyright (C) 2018 - 2021, Stephan Mueller <smueller@chronox.de> ++ */ ++ ++#ifndef _LRNG_H ++#define _LRNG_H ++ ++#include <crypto/hash.h> ++#include <linux/errno.h> ++#include <linux/types.h> ++ ++/* ++ * struct lrng_crypto_cb - cryptographic callback functions ++ * @lrng_drng_name Name of DRNG ++ * @lrng_hash_name Name of Hash used for reading entropy pool ++ * @lrng_drng_alloc: Allocate DRNG -- the provided integer should be ++ * used for sanity checks. ++ * return: allocated data structure or PTR_ERR on ++ * error ++ * @lrng_drng_dealloc: Deallocate DRNG ++ * @lrng_drng_seed_helper: Seed the DRNG with data of arbitrary length ++ * drng: is pointer to data structure allocated ++ * with lrng_drng_alloc ++ * return: >= 0 on success, < 0 on error ++ * @lrng_drng_generate_helper: Generate random numbers from the DRNG with ++ * arbitrary length ++ * @lrng_hash_alloc: Allocate the hash for reading the entropy pool ++ * return: allocated data structure (NULL is ++ * success too) or ERR_PTR on error ++ * @lrng_hash_dealloc: Deallocate Hash ++ * @lrng_hash_digestsize: Return the digestsize for the used hash to read ++ * out entropy pool ++ * hash: is pointer to data structure allocated ++ * with lrng_hash_alloc ++ * return: size of digest of hash in bytes ++ * @lrng_hash_init: Initialize hash ++ * hash: is pointer to data structure allocated ++ * with lrng_hash_alloc ++ * return: 0 on success, < 0 on error ++ * @lrng_hash_update: Update hash operation ++ * hash: is pointer to data structure allocated ++ * with lrng_hash_alloc ++ * return: 0 on success, < 0 on error ++ * @lrng_hash_final Final hash operation ++ * hash: is pointer to data structure allocated ++ * with lrng_hash_alloc ++ * return: 0 on success, < 0 on error ++ * @lrng_hash_desc_zero Zeroization of hash state buffer ++ * ++ * Assumptions: ++ * ++ * 1. Hash operation will not sleep ++ * 2. The hash' volatile state information is provided with *shash by caller. ++ */ ++struct lrng_crypto_cb { ++ const char *(*lrng_drng_name)(void); ++ const char *(*lrng_hash_name)(void); ++ void *(*lrng_drng_alloc)(u32 sec_strength); ++ void (*lrng_drng_dealloc)(void *drng); ++ int (*lrng_drng_seed_helper)(void *drng, const u8 *inbuf, u32 inbuflen); ++ int (*lrng_drng_generate_helper)(void *drng, u8 *outbuf, u32 outbuflen); ++ void *(*lrng_hash_alloc)(void); ++ void (*lrng_hash_dealloc)(void *hash); ++ u32 (*lrng_hash_digestsize)(void *hash); ++ int (*lrng_hash_init)(struct shash_desc *shash, void *hash); ++ int (*lrng_hash_update)(struct shash_desc *shash, const u8 *inbuf, ++ u32 inbuflen); ++ int (*lrng_hash_final)(struct shash_desc *shash, u8 *digest); ++ void (*lrng_hash_desc_zero)(struct shash_desc *shash); ++}; ++ ++/* Register cryptographic backend */ ++#ifdef CONFIG_LRNG_DRNG_SWITCH ++int lrng_set_drng_cb(const struct lrng_crypto_cb *cb); ++#else /* CONFIG_LRNG_DRNG_SWITCH */ ++static inline int ++lrng_set_drng_cb(const struct lrng_crypto_cb *cb) { return -EOPNOTSUPP; } ++#endif /* CONFIG_LRNG_DRNG_SWITCH */ ++ ++#endif /* _LRNG_H */ |