1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 588596561cb3..ec76e6bef916 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -82,6 +82,8 @@ struct hists {
 	int			nr_hpp_node;
 };
 
+#define hists__has(__h, __f) (__h)->hpp_list->__f
+
 struct hist_entry_iter;
 
 struct hist_iter_ops {
@@ -238,6 +240,8 @@ struct perf_hpp_fmt {
 struct perf_hpp_list {
 	struct list_head fields;
 	struct list_head sorts;
+
+	int need_collapse;
 };
 
 extern struct perf_hpp_list perf_hpp_list;