Messages in this thread Patch in this message | | | Date | Mon, 22 Apr 2013 13:08:41 +0800 | From | Chen Gang <> | Subject | [PATCH] ARM64: kernel: compiling issue, define cmpxchg64 and cmpxchg64_local for outside using. |
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drivers use cmpxchg64, cmpxchg64_local ... to perform 64-bit operation, so they can cross 32-bit and 64-bit platforms (it is a standard way).
Signed-off-by: Chen Gang <gang.chen@asianux.com> --- arch/arm64/include/asm/cmpxchg.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h index 968b5cb..8a8ce0e 100644 --- a/arch/arm64/include/asm/cmpxchg.h +++ b/arch/arm64/include/asm/cmpxchg.h @@ -170,4 +170,7 @@ static inline unsigned long __cmpxchg_mb(volatile void *ptr, unsigned long old, (unsigned long)(n), \ sizeof(*(ptr)))) +#define cmpxchg64(ptr,o,n) cmpxchg((ptr),(o),(n)) +#define cmpxchg64_local(ptr,o,n) cmpxchg_local((ptr),(o),(n)) + #endif /* __ASM_CMPXCHG_H */ -- 1.7.7.6
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