From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org A415E60290 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932772AbeFFQXg (ORCPT + 25 others); Wed, 6 Jun 2018 12:23:36 -0400 Received: from mga17.intel.com ([192.55.52.151]:61007 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753454AbeFFQXd (ORCPT ); Wed, 6 Jun 2018 12:23:33 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,483,1520924400"; d="scan'208";a="62323475" From: "Chang S. Bae" To: Andy Lutomirski , "H . Peter Anvin" , Thomas Gleixner , Ingo Molnar Cc: Andi Kleen , Dave Hansen , Markus T Metzger , "Ravi V . Shankar" , "Chang S . Bae" , LKML Subject: [PATCH v2 5/8] x86/msr: write_rdtscp_aux() to use wrmsr_safe() Date: Wed, 6 Jun 2018 09:23:16 -0700 Message-Id: <1528302199-29619-6-git-send-email-chang.seok.bae@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1528302199-29619-1-git-send-email-chang.seok.bae@intel.com> References: <1528302199-29619-1-git-send-email-chang.seok.bae@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Using wrmsr_safe() can make code a bit simpler by removing some condition check Suggested-by: H. Peter Anvin Signed-off-by: Chang S. Bae Cc: Andy Lutomirski Cc: Andi Kleen Cc: Dave Hansen Cc: Thomas Gleixner Cc: Ingo Molnar --- 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