From 4c7c99788631bab177bd51e15e893be4689bb085 Mon Sep 17 00:00:00 2001 From: Aoi Shinkai Date: Wed, 10 Jun 2009 16:15:42 +0000 Subject: sh: Fix sh4a llsc-based cmpxchg() This fixes up a typo in the ll/sc based cmpxchg code which apparently wasn't getting a lot of testing due to the swapped old/new pair. With that fixed up, the ll/sc code also starts using it and provides its own atomic_add_unless(). Signed-off-by: Aoi Shinkai Signed-off-by: Paul Mundt --- arch/sh/include/asm/atomic.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/sh/include/asm/atomic.h') diff --git a/arch/sh/include/asm/atomic.h b/arch/sh/include/asm/atomic.h index 6327ffbb1992..978b58efb1e9 100644 --- a/arch/sh/include/asm/atomic.h +++ b/arch/sh/include/asm/atomic.h @@ -45,7 +45,7 @@ #define atomic_inc(v) atomic_add(1,(v)) #define atomic_dec(v) atomic_sub(1,(v)) -#ifndef CONFIG_GUSA_RB +#if !defined(CONFIG_GUSA_RB) && !defined(CONFIG_CPU_SH4A) static inline int atomic_cmpxchg(atomic_t *v, int old, int new) { int ret; @@ -73,7 +73,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u) return ret != u; } -#endif +#endif /* !CONFIG_GUSA_RB && !CONFIG_CPU_SH4A */ #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -- cgit v1.2.2