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-rw-r--r--ipc/util.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/ipc/util.h b/ipc/util.h
index b21297bc11eb..579112d90016 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux/ipc/util.h
* Copyright (C) 1999 Christoph Rohland