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-rw-r--r--tools/perf/util/callchain.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 2a1f5a4..94cfefd 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -65,6 +65,8 @@ struct callchain_param {
enum chain_key key;
};
+extern struct callchain_param callchain_param;
+
struct callchain_list {
u64 ip;
struct map_symbol ms;
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