From: Borislav Petkov <bp@suse.de>
Date: Wed, 25 May 2022 18:12:32 +0200
Subject: x86/microcode: Remove unnecessary perf callback
Git-commit: 0c0fe08c76485fe0178ebb0fa1a2052c727abe94
Patch-mainline: 5.19-rc1
References: jsc#PED-1072
c93dc84cbe32 ("perf/x86: Add a microcode revision check for SNB-PEBS")
checks whether the microcode revision has fixed PEBS issues.
This can happen either:
1. At PEBS init time, where the early microcode has been loaded already
2. During late loading, in the microcode_check() callback.
So remove the unnecessary call in the microcode loader init routine.
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220525161232.14924-5-bp@alien8.de
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
arch/x86/kernel/cpu/microcode/core.c | 3 ---
1 file changed, 3 deletions(-)
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -773,10 +773,7 @@ static int __init microcode_init(void)
cpus_read_lock();
mutex_lock(µcode_mutex);
-
error = subsys_interface_register(&mc_cpu_interface);
- if (!error)
- perf_check_microcode();
mutex_unlock(µcode_mutex);
cpus_read_unlock();