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-rw-r--r--fs/btrfs/sysfs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/sysfs.h b/fs/btrfs/sysfs.h
index d7da1a4c2f6c..4cb908305e5d 100644
--- a/fs/btrfs/sysfs.h
+++ b/fs/btrfs/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BTRFS_SYSFS_H_
#define _BTRFS_SYSFS_H_