Commit-ID: 5f755293ca61520b70b11afe1b1d6e1635cb6c00
Gitweb: http://git.kernel.org/tip/5f755293ca61520b70b11afe1b1d6e1635cb6c00
Author: Andi Kleen <andi@xxxxxxxxxxxxxx>
AuthorDate: Tue, 20 Jul 2010 15:19:48 -0700
Committer: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
CommitDate: Tue, 20 Jul 2010 15:38:18 -0700
x86, gcc-4.6: Avoid unused by set variables in rdmsr
Avoids quite a lot of warnings with a gcc 4.6 -Wall build
because this happens in a commonly used header file (apic.h)
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
LKML-Reference: <201007202219.o6KMJme6021066@xxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
---
arch/x86/include/asm/msr.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index c5bc4c2..084ef95 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -148,8 +148,8 @@ static inline unsigned long long native_read_pmc(int counter)
#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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