linux-kernel - [tip: x86/urgent] x86/CPU/AMD: Terminate the erratum_1386

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Message-ID: <173263110574.412.1382588433469886673.tip-bot2@tip-bot2>
Date: Tue, 26 Nov 2024 14:25:05 -0000
From: "tip-bot2 for Sebastian Andrzej Siewior" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
 "Borislav Petkov (AMD)" <bp@...en8.de>,  <stable@...nel.org>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject:
 [tip: x86/urgent] x86/CPU/AMD: Terminate the erratum_1386_microcode array

The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     ff6cdc407f4179748f4673c39b0921503199a0ad
Gitweb:        https://git.kernel.org/tip/ff6cdc407f4179748f4673c39b0921503199a0ad
Author:        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
AuthorDate:    Tue, 26 Nov 2024 14:47:22 +01:00
Committer:     Borislav Petkov (AMD) <bp@...en8.de>
CommitterDate: Tue, 26 Nov 2024 15:12:00 +01:00

x86/CPU/AMD: Terminate the erratum_1386_microcode array

The erratum_1386_microcode array requires an empty entry at the end.
Otherwise x86_match_cpu_with_stepping() will continue iterate the array after
it ended.

Add an empty entry to erratum_1386_microcode to its end.

Fixes: 29ba89f189528 ("x86/CPU/AMD: Improve the erratum 1386 workaround")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@...en8.de>
Cc: <stable@...nel.org>
Link: https://lore.kernel.org/r/20241126134722.480975-1-bigeasy@linutronix.de
---
 arch/x86/kernel/cpu/amd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 823f44f..d8408aa 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -798,6 +798,7 @@ static void init_amd_bd(struct cpuinfo_x86 *c)
 static const struct x86_cpu_desc erratum_1386_microcode[] = {
 	AMD_CPU_DESC(0x17,  0x1, 0x2, 0x0800126e),
 	AMD_CPU_DESC(0x17, 0x31, 0x0, 0x08301052),
+	{},
 };
 
 static void fix_erratum_1386(struct cpuinfo_x86 *c)