diff --git a/arch/sparc/kernel/of_device_common.h b/arch/sparc/kernel/of_device_common.h
index cdfd239..3d66230 100644
--- a/arch/sparc/kernel/of_device_common.h
+++ b/arch/sparc/kernel/of_device_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _OF_DEVICE_COMMON_H
 #define _OF_DEVICE_COMMON_H