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-rw-r--r--tools/perf/util/callchain.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 9b4ff16cac96..7f9c0f1ae3a9 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -101,6 +101,9 @@ int callchain_append(struct callchain_root *root,
int callchain_merge(struct callchain_cursor *cursor,
struct callchain_root *dst, struct callchain_root *src);
+struct ip_callchain;
+union perf_event;
+
bool ip_callchain__valid(struct ip_callchain *chain,
const union perf_event *event);
/*