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-rw-r--r--drivers/isdn/mISDN/stack.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c
index e2f45019ebf0..3e1532a180ff 100644
--- a/drivers/isdn/mISDN/stack.c
+++ b/drivers/isdn/mISDN/stack.c
@@ -17,6 +17,7 @@
#include <linux/mISDNif.h>
#include <linux/kthread.h>
+#include <linux/smp_lock.h>
#include "core.h"
static u_int *debug;