linux-kernel - [PATCH -next 1/2] x86: Use rdmsrl instead of rdmsr

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Message-Id: <20211210032208.28240-1-yang.lee@linux.alibaba.com>
Date:   Fri, 10 Dec 2021 11:22:07 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     tglx@...utronix.de
Cc:     mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com,
        x86@...nel.org, hpa@...or.com, linux-kernel@...r.kernel.org,
        Li Yang <yang.lee@...ux.alibaba.com>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH -next 1/2] x86: Use rdmsrl instead of rdmsr

From: Li Yang <yang.lee@...ux.alibaba.com>

In the current scenario, variable 'hi' set but not used,
rdmsrl() does not change the function, but it is more concise.

Eliminate the following clang warnings:
arch/x86/kernel/process.c:889:10: warning: variable 'hi' set but not
used [-Wunused-but-set-variable]

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Li Yang <yang.lee@...ux.alibaba.com>
---
 arch/x86/kernel/process.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 5d481038fe0b..b415f30278d1 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -886,7 +886,7 @@ void amd_e400_c1e_apic_setup(void)
 
 void __init arch_post_acpi_subsys_init(void)
 {
-	u32 lo, hi;
+	u32 lo;
 
 	if (!boot_cpu_has_bug(X86_BUG_AMD_E400))
 		return;
@@ -896,7 +896,7 @@ void __init arch_post_acpi_subsys_init(void)
 	 * the machine is affected K8_INTP_C1E_ACTIVE_MASK bits are set in
 	 * MSR_K8_INT_PENDING_MSG.
 	 */
-	rdmsr(MSR_K8_INT_PENDING_MSG, lo, hi);
+	rdmsrl(MSR_K8_INT_PENDING_MSG, lo);
 	if (!(lo & K8_INTP_C1E_ACTIVE_MASK))
 		return;
 
-- 
2.34.0