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From:   Xu Yihang <xuyihang@huawei.com>
To:     <kys@microsoft.com>, <haiyangz@microsoft.com>,
        <sthemmin@microsoft.com>, <tglx@linutronix.de>, <mingo@redhat.com>,
        <bp@alien8.de>, <x86@kernel.org>
CC:     <linux-hyperv@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <xuyihang@huawei.com>
Subject: [PATCH -next] x86: Fix unused variable 'msr_val' warning
Date:   Thu, 18 Mar 2021 16:03:48 +0800
Message-ID: <20210318080348.151022-1-xuyihang@huawei.com>
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Fixes the following W=1 kernel build warning(s):
arch/x86/hyperv/hv_spinlock.c:28:16: warning: variable ‘msr_val’ set but not used [-Wunused-but-set-variable]
  unsigned long msr_val;

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xu Yihang <xuyihang@huawei.com>
---
 arch/x86/hyperv/hv_spinlock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/hyperv/hv_spinlock.c b/arch/x86/hyperv/hv_spinlock.c
index f3270c1fc48c..67bc15c7752a 100644
--- a/arch/x86/hyperv/hv_spinlock.c
+++ b/arch/x86/hyperv/hv_spinlock.c
@@ -25,7 +25,7 @@ static void hv_qlock_kick(int cpu)
 
 static void hv_qlock_wait(u8 *byte, u8 val)
 {
-	unsigned long msr_val;
+	unsigned long msr_val __maybe_unused;
 	unsigned long flags;
 
 	if (in_nmi())
-- 
2.17.1