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-rw-r--r--tools/testing/selftests/watchdog/watchdog-test.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
index a1391be2dc1e..6e290874b70e 100644
--- a/tools/testing/selftests/watchdog/watchdog-test.c
+++ b/tools/testing/selftests/watchdog/watchdog-test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Watchdog Driver Test Program
*/