linux-kernel - [PATCH V2 2/5] perf/x86/intel: Check the X86 leader for pebs_counter_event

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Message-Id: <20250424134718.311934-3-kan.liang@linux.intel.com>
Date: Thu, 24 Apr 2025 06:47:15 -0700
From: kan.liang@...ux.intel.com
To: peterz@...radead.org,
	mingo@...hat.com,
	acme@...nel.org,
	namhyung@...nel.org,
	irogers@...gle.com,
	linux-kernel@...r.kernel.org
Cc: Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH V2 2/5] perf/x86/intel: Check the X86 leader for pebs_counter_event_group

From: Kan Liang <kan.liang@...ux.intel.com>

The PEBS counters snapshotting group also requires a group flag in the
leader. The leader must be a X86 event.

Fixes: e02e9b0374c3 ("perf/x86/intel: Support PEBS counters snapshotting")
Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 arch/x86/events/perf_event.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 4fc61a09c30e..fd409d70e568 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -124,7 +124,7 @@ static inline bool is_branch_counters_group(struct perf_event *event)
 
 static inline bool is_pebs_counter_event_group(struct perf_event *event)
 {
-	return event->group_leader->hw.flags & PERF_X86_EVENT_PEBS_CNTR;
+	return check_leader_group(event->group_leader, PERF_X86_EVENT_PEBS_CNTR);
 }
 
 static inline bool is_acr_event_group(struct perf_event *event)
-- 
2.38.1