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-rw-r--r--tools/perf/util/pstack.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/pstack.h b/tools/perf/util/pstack.h
index ded7f2e36624..712051b8130f 100644
--- a/tools/perf/util/pstack.h
+++ b/tools/perf/util/pstack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _PERF_PSTACK_
#define _PERF_PSTACK_
@@ -9,7 +10,6 @@ void pstack__delete(struct pstack *pstack);
bool pstack__empty(const struct pstack *pstack);
void pstack__remove(struct pstack *pstack, void *key);
void pstack__push(struct pstack *pstack, void *key);
-void *pstack__pop(struct pstack *pstack);
void *pstack__peek(struct pstack *pstack);
#endif /* _PERF_PSTACK_ */