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-rw-r--r--kernel/kthread.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/kthread.c b/kernel/kthread.c
index be4e8795561a..621467c33fef 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* Kernel thread helper functions.
* Copyright (C) 2004 IBM Corporation, Rusty Russell.
*