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-rw-r--r--tools/perf/util/metricgroup.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index ee94d3e8dd65..8cb164ad06c1 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -162,6 +162,14 @@ static bool contains_event(struct evsel **metric_events, int num_events,
return false;
}
+static bool evsel_same_pmu(struct evsel *ev1, struct evsel *ev2)
+{
+ if (!ev1->pmu_name || !ev2->pmu_name)
+ return false;
+
+ return !strcmp(ev1->pmu_name, ev2->pmu_name);
+}
+
/**
* Find a group of events in perf_evlist that correspond to those from a parsed
* metric expression. Note, as find_evsel_group is called in the same order as
@@ -280,8 +288,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist,
*/
if (!has_constraint &&
ev->leader != metric_events[i]->leader &&
- !strcmp(ev->leader->pmu_name,
- metric_events[i]->leader->pmu_name))
+ evsel_same_pmu(ev->leader, metric_events[i]->leader))
break;
if (!strcmp(metric_events[i]->name, ev->name)) {
set_bit(ev->idx, evlist_used);