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-rw-r--r--arch/powerpc/boot/io.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/boot/io.h b/arch/powerpc/boot/io.h
index 7c09f4861fe1..5c6f90c34923 100644
--- a/arch/powerpc/boot/io.h
+++ b/arch/powerpc/boot/io.h
@@ -1,5 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _IO_H
-#define __IO_H
+#define _IO_H
#include "types.h"