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-rw-r--r--lib/idr.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/idr.c b/lib/idr.c
index cb1db9b8d3f6..c34e256d2f01 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/bitmap.h>
#include <linux/bug.h>
#include <linux/export.h>