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Date: Mon, 22 Apr 2013 13:08:22 +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: Re: [Suggestion] ARM64: kernel: compiling issue, need implement cmpxchg64 with assembler language. On 2013年04月20日 15:32, Arnd Bergmann wrote: > On Saturday 20 April 2013 10:28:55 Chen Gang wrote: >> >> -------------------------------patch begin-------------------------------------- >> >> diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h >> index 968b5cb..b572d2b 100644 >> --- a/arch/arm64/include/asm/cmpxchg.h >> +++ b/arch/arm64/include/asm/cmpxchg.h >> @@ -170,4 +170,6 @@ 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)) >> + >> #endif /* __ASM_CMPXCHG_H */ > > Yes, this looks good. Please provide the same for cmpxchg64_local. > ok, thanks, I will send related patch. gchen. -- 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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