1 files changed, 27 insertions, 0 deletions

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index e88e6f9b1463..668d2a9ef0f4 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1810,3 +1810,30 @@ void perf_evlist__force_leader(struct perf_evlist *evlist)
                 leader->forced_leader = true;
         }
 }
+
+struct perf_evsel *perf_evlist__reset_weak_group(struct perf_evlist *evsel_list,
+                                                 struct perf_evsel *evsel)
+{
+        struct perf_evsel *c2, *leader;
+        bool is_open = true;
+
+        leader = evsel->leader;
+        pr_debug("Weak group for %s/%d failed\n",
+                        leader->name, leader->nr_members);
+
+        /*
+         * for_each_group_member doesn't work here because it doesn't
+         * include the first entry.
+         */
+        evlist__for_each_entry(evsel_list, c2) {
+                if (c2 == evsel)
+                        is_open = false;
+                if (c2->leader == leader) {
+                        if (is_open)
+                                perf_evsel__close(c2);
+                        c2->leader = c2;
+                        c2->nr_members = 0;
+                }
+        }
+        return leader;
+}