License cleanup: add SPDX GPL-2.0 license identifier to files with no license

[mirror_ubuntu-bionic-kernel.git] / tools / perf / util / callchain.h

diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 1ed6fc61d0a5906fe8e4e9e344c8c9fa9a925735..f967aa47d0a1d090420b1acd2e1814292a29f47f 100644 (file)
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_CALLCHAIN_H
 #define __PERF_CALLCHAIN_H