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-rw-r--r--drivers/isdn/mISDN/l1oip.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/isdn/mISDN/l1oip.h b/drivers/isdn/mISDN/l1oip.h
index 661c060ada49..7ea10db20e3a 100644
--- a/drivers/isdn/mISDN/l1oip.h
+++ b/drivers/isdn/mISDN/l1oip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* see notice in l1oip.c
*/