1 files changed, 1 insertions, 0 deletions

diff --git a/ipc/sem.c b/ipc/sem.c
index f7385bc..b2698eb 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/ipc/sem.c
  * Copyright (C) 1992 Krishna Balasubramanian