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| author | Szabolcs Nagy <nsz@port70.net> | 2013-05-26 15:49:08 +0000 |
|---|---|---|
| committer | Szabolcs Nagy <nsz@port70.net> | 2013-05-26 15:49:08 +0000 |
| commit | 41c34d188a598b016d62e152735f8466fe9910a4 (patch) | |
| tree | 90efa948a7901fbfb9450a33373c17efec3f666c /arch/powerpc | |
| parent | a6367a17d5f77848e8313b1e5e42698aec92908d (diff) | |
| download | musl-41c34d188a598b016d62e152735f8466fe9910a4.tar.gz musl-41c34d188a598b016d62e152735f8466fe9910a4.tar.bz2 musl-41c34d188a598b016d62e152735f8466fe9910a4.tar.xz musl-41c34d188a598b016d62e152735f8466fe9910a4.zip | |
fix ioctl _IOR, _IOW, etc macros to avoid signed overflow (2<<30)
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/bits/ioctl.h | 25 |
1 files changed, 3 insertions, 22 deletions
diff --git a/arch/powerpc/bits/ioctl.h b/arch/powerpc/bits/ioctl.h index 15cd6c72..0c903dcb 100644 --- a/arch/powerpc/bits/ioctl.h +++ b/arch/powerpc/bits/ioctl.h @@ -1,31 +1,12 @@ -//#define _IOC(a,b,c,d) ( ((a)<<29) | ((b)<<8) | (c) | ((d)<<16) ) -// -#define _IOC_SIZEBITS 13 -#define _IOC_DIRBITS 3 - -#define _IOC_NRBITS 8 -#define _IOC_TYPEBITS 8 - -#define _IOC_NRSHIFT 0 -#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS) -#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS) -#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS) - -#define _IOC(dir,type,nr,size) \ - (((dir) << _IOC_DIRSHIFT) | \ - ((type) << _IOC_TYPESHIFT) | \ - ((nr) << _IOC_NRSHIFT) | \ - ((size) << _IOC_SIZESHIFT)) - - +#define _IOC(a,b,c,d) ( ((a)<<29) | ((b)<<8) | (c) | ((d)<<16) ) #define _IOC_NONE 1U #define _IOC_WRITE 4U #define _IOC_READ 2U #define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0) #define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c)) -#define _IOR(a,b,c) _IOC(_IOC_READ ,(a),(b),sizeof(c)) -#define _IOWR(a,b,c) _IOC(_IOC_READ | _IOC_WRITE,(a),(b),sizeof(c)) +#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c)) +#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c)) #define FIONCLEX _IO('f', 2) #define FIOCLEX _IO('f', 1) |