Messages in this thread Patch in this message | | | From | "Chang S. Bae" <> | Subject | [PATCH 5/6] x86/msr: write_rdtscp_aux() to use wrmsr_safe() | Date | Mon, 4 Jun 2018 12:24:28 -0700 |
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Using wrmsr_safe() can make code a bit simpler by removing some condition check
Suggested-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> --- arch/x86/include/asm/msr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h index 04addd6..09bec62 100644 --- a/arch/x86/include/asm/msr.h +++ b/arch/x86/include/asm/msr.h @@ -317,7 +317,7 @@ static inline int wrmsrl_safe(u32 msr, u64 val) #define write_tsc(low, high) wrmsr(MSR_IA32_TSC, (low), (high)) -#define write_rdtscp_aux(val) wrmsr(MSR_TSC_AUX, (val), 0) +#define write_rdtscp_aux(val) wrmsr_safe(MSR_TSC_AUX, (val), 0) struct msr *msrs_alloc(void); void msrs_free(struct msr *msrs); -- 2.7.4
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