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-rw-r--r--lib/interval_tree.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/interval_tree.c b/lib/interval_tree.c
index c85f6600a5f8..593ce56ece50 100644
--- a/lib/interval_tree.c
+++ b/lib/interval_tree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/interval_tree.h>
#include <linux/interval_tree_generic.h>
#include <linux/compiler.h>