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-rw-r--r--tools/perf/util/lock-contention.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/lock-contention.h b/tools/perf/util/lock-contention.h
index 2146efc33396..bdb6e2a61e5b 100644
--- a/tools/perf/util/lock-contention.h
+++ b/tools/perf/util/lock-contention.h
@@ -11,6 +11,7 @@ struct lock_stat {
u64 addr; /* address of lockdep_map, used as ID */
char *name; /* for strcpy(), we cannot use const */
+ u64 *callstack;
unsigned int nr_acquire;
unsigned int nr_acquired;