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-rw-r--r--drivers/serial/efi-stdio.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/serial/efi-stdio.h b/drivers/serial/efi-stdio.h
index 1fa417c706..e2edd8b32e 100644
--- a/drivers/serial/efi-stdio.h
+++ b/drivers/serial/efi-stdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef EFI_STDIO_H_
#define EFI_STDIO_H_