Index: hfsc.c
===================================================================
RCS file: /cvs/src/sys/net/hfsc.c,v
retrieving revision 1.39
diff -u -p -r1.39 hfsc.c
--- hfsc.c	8 May 2017 11:30:53 -0000	1.39
+++ hfsc.c	12 Jun 2017 05:08:01 -0000
@@ -817,7 +817,7 @@ hfsc_deferred(void *arg)
 	KASSERT(HFSC_ENABLED(ifq));
 
 	if (!ifq_empty(ifq))
-		(*ifp->if_qstart)(ifq);
+		ifq_start(ifq);
 
 	hif = ifq->ifq_q;