diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2009-12-10 15:40:31 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-12-10 15:40:31 +0900 |
| commit | b5c00a3a412857d6f07970984068c450429e051c (patch) | |
| tree | 1fde50630cbc24e11a45169f717f281db8eb6dcc /arch/arm/include/asm/swab.h | |
| parent | ca6f2d7fafd2d48b2f6943f5c6787beaec2014d0 (diff) | |
| parent | 3067e02f8f3ae2f3f02ba76400d03b8bcb4942b0 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.33
Diffstat (limited to 'arch/arm/include/asm/swab.h')
| -rw-r--r-- | arch/arm/include/asm/swab.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/include/asm/swab.h b/arch/arm/include/asm/swab.h index ca2bf2f6d6e..9997ad20eff 100644 --- a/arch/arm/include/asm/swab.h +++ b/arch/arm/include/asm/swab.h @@ -22,6 +22,24 @@ # define __SWAB_64_THRU_32__ #endif +#if defined(__KERNEL__) && __LINUX_ARM_ARCH__ >= 6 + +static inline __attribute_const__ __u16 __arch_swab16(__u16 x) +{ + __asm__ ("rev16 %0, %1" : "=r" (x) : "r" (x)); + return x; +} +#define __arch_swab16 __arch_swab16 + +static inline __attribute_const__ __u32 __arch_swab32(__u32 x) +{ + __asm__ ("rev %0, %1" : "=r" (x) : "r" (x)); + return x; +} +#define __arch_swab32 __arch_swab32 + +#else + static inline __attribute_const__ __u32 __arch_swab32(__u32 x) { __u32 t; @@ -48,3 +66,4 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 x) #endif +#endif |