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-rw-r--r--drivers/isdn/mISDN/l1oip_core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 67c21876c35f..6ceca7db62ad 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -234,6 +234,8 @@
#include <linux/workqueue.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include <net/sock.h>
#include "core.h"
#include "l1oip.h"