[PATCH v2 1/5] perf/x86/intel/lbr: use setup_clear_cpu_cap instead of clear_cpu_cap

Maxim Levitsky
2022-07-18T14:11:46Z

clear_cpu_cap(&boot_cpu_data) is very similar to setup_clear_cpu_cap
except that the latter also sets a bit in 'cpu_caps_cleared' which
later clears the same cap in secondary cpus, which is likely
what is meant here.

Fixes: 47125db27e47 ("perf/x86/intel/lbr: Support Architectural LBR")

Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
---
arch/x86/events/intel/lbr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 13179f31fe10fa..b08715172309a7 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -1860,7 +1860,7 @@ void __init intel_pmu_arch_lbr_init(void)
return;

clear_arch_lbr:
- clear_cpu_cap(&boot_cpu_data, X86_FEATURE_ARCH_LBR);
+ setup_clear_cpu_cap(X86_FEATURE_ARCH_LBR);
}

/**
--
2.34.3