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-rw-r--r--drivers/block/drbd/drbd_protocol.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_protocol.h b/drivers/block/drbd/drbd_protocol.h
index 4d296800f706..c3081f93051c 100644
--- a/drivers/block/drbd/drbd_protocol.h
+++ b/drivers/block/drbd/drbd_protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __DRBD_PROTOCOL_H
#define __DRBD_PROTOCOL_H