linux-kernel - [tip: ras/core] x86/mce/inject: Fix a wrong assignment of i

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Date:   Mon, 15 Jun 2020 11:42:55 -0000
From:   "tip-bot2 for Zhenzhong Duan" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Zhenzhong Duan <zhenzhong.duan@...il.com>,
        Borislav Petkov <bp@...e.de>,
        Yazen Ghannam <yazen.ghannam@....com>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: ras/core] x86/mce/inject: Fix a wrong assignment of i_mce.status

The following commit has been merged into the ras/core branch of tip:

Commit-ID:     5d7f7d1d5e01c22894dee7c9c9266500478dca99
Gitweb:        https://git.kernel.org/tip/5d7f7d1d5e01c22894dee7c9c9266500478dca99
Author:        Zhenzhong Duan <zhenzhong.duan@...il.com>
AuthorDate:    Thu, 11 Jun 2020 10:32:38 +08:00
Committer:     Borislav Petkov <bp@...e.de>
CommitterDate: Mon, 15 Jun 2020 13:38:55 +02:00

x86/mce/inject: Fix a wrong assignment of i_mce.status

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
---
 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 0593b19..7843ab3 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;
 	}
 
 	/*