46 lines
1.5 KiB
Diff
46 lines
1.5 KiB
Diff
From 88686baf053310a4bd81088bd733c8be8a68db49 Mon Sep 17 00:00:00 2001
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From: Borislav Petkov <bp@suse.de>
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Date: Wed, 25 May 2022 18:12:32 +0200
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Subject: [PATCH 07/36] x86/microcode: Remove unnecessary perf callback
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c93dc84cbe32 ("perf/x86: Add a microcode revision check for SNB-PEBS")
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checks whether the microcode revision has fixed PEBS issues.
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This can happen either:
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1. At PEBS init time, where the early microcode has been loaded already
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2. During late loading, in the microcode_check() callback.
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So remove the unnecessary call in the microcode loader init routine.
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Signed-off-by: Borislav Petkov <bp@suse.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Link: https://lore.kernel.org/r/20220525161232.14924-5-bp@alien8.de
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(cherry picked from commit 0c0fe08c76485fe0178ebb0fa1a2052c727abe94)
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Signed-off-by: Mridula Shastry <mridula.c.shastry@oracle.com>
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Reviewed-by: Todd Vierling <todd.vierling@oracle.com>
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---
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arch/x86/kernel/cpu/microcode/core.c | 3 ---
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1 file changed, 3 deletions(-)
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diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
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index a803b839b16e..44bac17304ac 100644
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--- a/arch/x86/kernel/cpu/microcode/core.c
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+++ b/arch/x86/kernel/cpu/microcode/core.c
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@@ -776,10 +776,7 @@ int __init microcode_init(void)
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get_online_cpus();
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mutex_lock(µcode_mutex);
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-
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error = subsys_interface_register(&mc_cpu_interface);
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- if (!error)
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- perf_check_microcode();
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mutex_unlock(µcode_mutex);
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put_online_cpus();
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--
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2.39.3
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