1 files changed, 7 insertions, 2 deletions

diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 6f94d6dea00f..a4c1dd4e149f 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -3,6 +3,7 @@
 
 #include <linux/list.h>
 #include <stdbool.h>
+#include <stddef.h>
 #include "../../../include/uapi/linux/perf_event.h"
 #include "types.h"
 #include "xyarray.h"
@@ -92,8 +93,7 @@ void perf_evsel__exit(struct perf_evsel *evsel);
 void perf_evsel__delete(struct perf_evsel *evsel);
 
 void perf_evsel__config(struct perf_evsel *evsel,
-                        struct perf_record_opts *opts,
-                        struct perf_evsel *first);
+                        struct perf_record_opts *opts);
 
 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
 
@@ -225,4 +225,9 @@ static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
 {
         return list_entry(evsel->node.next, struct perf_evsel, node);
 }
+
+static inline bool perf_evsel__is_group_member(const struct perf_evsel *evsel)
+{
+        return evsel->leader != NULL;
+}
 #endif /* __PERF_EVSEL_H */