From: Chen Gang Date: Mon, 27 May 2013 11:57:01 +0000 (+0800) Subject: arch: xtensa: include: asm: compiling issue, need cmpxchg64() defined. X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b5514786ec3257c8703fc7f29bdf98b42253ee39;p=linux-beck.git arch: xtensa: include: asm: compiling issue, need cmpxchg64() defined. When compiling with 'allmodconfig', some of drivers need cmpxchg64(), xtensa does not supply 64-bit implementation for 'xchg', so use the 'generic' implementation. e.g. (for next-20130527 tree): drivers/block/blockconsole.c:164:2: error: implicit declaration of function ‘cmpxchg64’ [-Werror=implicit-function-declaration] Signed-off-by: Chen Gang Signed-off-by: Max Filippov Signed-off-by: Chris Zankel --- diff --git a/arch/xtensa/include/asm/cmpxchg.h b/arch/xtensa/include/asm/cmpxchg.h index d9ab131bc1aa..370b26f38414 100644 --- a/arch/xtensa/include/asm/cmpxchg.h +++ b/arch/xtensa/include/asm/cmpxchg.h @@ -93,6 +93,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr, ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\ (unsigned long)(n), sizeof(*(ptr)))) #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) +#define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n)) /* * xchg_u32