[PATCH] [3/23] x86: Avoid unused by set variables in rdmsr
From: Andi Kleen
Date: Thu Jun 10 2010 - 07:14:46 EST
Avoids quite a lot of warnings with a gcc 4.6 -Wall build
because this happens in a commonly used header file (apic.h)
Cc: x86@xxxxxxxxxx
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
arch/x86/include/asm/msr.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux-2.6.35-rc2-gcc/arch/x86/include/asm/msr.h
===================================================================
--- linux-2.6.35-rc2-gcc.orig/arch/x86/include/asm/msr.h
+++ linux-2.6.35-rc2-gcc/arch/x86/include/asm/msr.h
@@ -148,8 +148,8 @@ static inline unsigned long long native_
#define rdmsr(msr, val1, val2) \
do { \
u64 __val = native_read_msr((msr)); \
- (val1) = (u32)__val; \
- (val2) = (u32)(__val >> 32); \
+ (void)((val1) = (u32)__val); \
+ (void)((val2) = (u32)(__val >> 32)); \
} while (0)
static inline void wrmsr(unsigned msr, unsigned low, unsigned high)
--
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