| From | Andi Kleen <> | Subject | [PATCH] [3/23] x86: Avoid unused by set variables in rdmsr | Date | Thu, 10 Jun 2010 13:10:38 +0200 (CEST) |
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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@kernel.org
Signed-off-by: Andi Kleen <ak@linux.intel.com>
--- 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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