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Message-ID: <5174C5D9.3060109@asianux.com> Date: Mon, 22 Apr 2013 13:08:41 +0800 From: Chen Gang <gang.chen@...anux.com> To: Arnd Bergmann <arnd@...db.de> CC: Catalin Marinas <Catalin.Marinas@....com>, Will Deacon <will.deacon@....com>, Tony Lindgren <tony@...mide.com>, "olof@...om.net" <olof@...om.net>, Santosh Shilimkar <santosh.shilimkar@...com>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: [PATCH] ARM64: kernel: compiling issue, define cmpxchg64 and cmpxchg64_local for outside using. 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@...anux.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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