perf/x86/intel: Apply static call for drain_pebs

commit 314dfe10576912e1d786b13c5d4eee8c51b63caa upstream.

The x86_pmu_drain_pebs static call was introduced in commit 7c9903c9bf71
("x86/perf, static_call: Optimize x86_pmu methods"), but it's not really
used to replace the old method.

Apply the static call for drain_pebs.

Fixes: 7c9903c9bf71 ("x86/perf, static_call: Optimize x86_pmu methods")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20250121152303.3128733-1-kan.liang@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 3a68b3e0b7a3584999223348a14c9ff844c2b465..6ad22e187b06bed2d9aab21b0688107959a342b4 100644 (file)
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -3067,7 +3067,7 @@ static int handle_pmi_common(struct pt_regs *regs, u64 status)
 
                handled++;
                x86_pmu_handle_guest_pebs(regs, &data);
-               x86_pmu.drain_pebs(regs, &data);
+               static_call(x86_pmu_drain_pebs)(regs, &data);
                status &= intel_ctrl | GLOBAL_STATUS_TRACE_TOPAPMI;
 
                /*

diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index c07ca43e67e7f158ef19f79c50b9ff98c75bcdb2..80cb7a9bd854fb73c9ed43162ec8a346485241bd 100644 (file)
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -936,7 +936,7 @@ static inline void intel_pmu_drain_pebs_buffer(void)
 {
        struct perf_sample_data data;
 
-       x86_pmu.drain_pebs(NULL, &data);
+       static_call(x86_pmu_drain_pebs)(NULL, &data);
 }
 
 /*

diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index ac1182141bf67fc47b252f0bd53a9d77ba2b396b..b440f7295f1f5a54b8051264b4361b4b06891ef5 100644 (file)
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -1092,6 +1092,7 @@ extern struct x86_pmu x86_pmu __read_mostly;
 
 DECLARE_STATIC_CALL(x86_pmu_set_period, *x86_pmu.set_period);
 DECLARE_STATIC_CALL(x86_pmu_update,     *x86_pmu.update);
+DECLARE_STATIC_CALL(x86_pmu_drain_pebs,        *x86_pmu.drain_pebs);
 
 static __always_inline struct x86_perf_task_context_opt *task_context_opt(void *ctx)
 {