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Date:   Sat,  8 Aug 2020 19:36:28 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Zhenzhong Duan <zhenzhong.duan@...il.com>,
        Borislav Petkov <bp@...e.de>,
        Yazen Ghannam <yazen.ghannam@....com>,
        Sasha Levin <sashal@...nel.org>, linux-edac@...r.kernel.org
Subject: [PATCH AUTOSEL 5.7 02/58] x86/mce/inject: Fix a wrong assignment of i_mce.status

From: Zhenzhong Duan <zhenzhong.duan@...il.com>

[ Upstream commit 5d7f7d1d5e01c22894dee7c9c9266500478dca99 ]

The original code is a nop as i_mce.status is or'ed with part of itself,
fix it.

Fixes: a1300e505297 ("x86/ras/mce_amd_inj: Trigger deferred and thresholding errors interrupts")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@...il.com>
Signed-off-by: Borislav Petkov <bp@...e.de>
Acked-by: Yazen Ghannam <yazen.ghannam@....com>
Link: https://lkml.kernel.org/r/20200611023238.3830-1-zhenzhong.duan@gmail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/x86/kernel/cpu/mce/inject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mce/inject.c b/arch/x86/kernel/cpu/mce/inject.c
index 3413b41b8d55f..dc28a615e340f 100644
--- a/arch/x86/kernel/cpu/mce/inject.c
+++ b/arch/x86/kernel/cpu/mce/inject.c
@@ -511,7 +511,7 @@ static void do_inject(void)
 	 */
 	if (inj_type == DFR_INT_INJ) {
 		i_mce.status |= MCI_STATUS_DEFERRED;
-		i_mce.status |= (i_mce.status & ~MCI_STATUS_UC);
+		i_mce.status &= ~MCI_STATUS_UC;
 	}
 
 	/*
-- 
2.25.1

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