License cleanup: add SPDX GPL-2.0 license identifier to files with no license
[linux-2.6-block.git] / tools / perf / util / callchain.c
index a971caf3759dc2fc9645856c9296c3ad0aee1445..6031933d811c258f0c3d36c09389975985ff2e1c 100644 (file)
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2009-2011, Frederic Weisbecker <fweisbec@gmail.com>
  *