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-rw-r--r--tools/include/linux/atomic.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/include/linux/atomic.h b/tools/include/linux/atomic.h
index 9f21fc2b092b..00a6c4ca562b 100644
--- a/tools/include/linux/atomic.h
+++ b/tools/include/linux/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __TOOLS_LINUX_ATOMIC_H
#define __TOOLS_LINUX_ATOMIC_H