Messages in this thread Patch in this message | | | From | Borislav Petkov <> | Subject | [PATCH 4/4] x86/microcode: Remove unnecessary perf callback | Date | Wed, 25 May 2022 18:12:32 +0200 |
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From: Borislav Petkov <bp@suse.de>
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> --- arch/x86/kernel/cpu/microcode/core.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c index 801b44ac3851..ad57e0e4d674 100644 --- a/arch/x86/kernel/cpu/microcode/core.c +++ b/arch/x86/kernel/cpu/microcode/core.c @@ -756,10 +756,7 @@ 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(); -- 2.35.1
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