diff --git a/sys/dev/cxgbe/t4_tracer.c b/sys/dev/cxgbe/t4_tracer.c
--- a/sys/dev/cxgbe/t4_tracer.c
+++ b/sys/dev/cxgbe/t4_tracer.c
@@ -135,7 +135,8 @@
 }
 
 static int
-t4_cloner_create(struct if_clone *ifc, char *name, size_t len, caddr_t params)
+t4_cloner_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
 	struct match_rr mrr;
 	struct adapter *sc;
@@ -182,7 +183,7 @@
 	}
 
 	/* Note that if_xname is not <if_dname><if_dunit>. */
-	if_initname(ifp, name, unit);
+	if_initname(ifp, name, ifd->unit);
 	if_setdname(ifp, t4_cloner_name);
 	if_setinitfn(ifp, tracer_init);
 	if_setflags(ifp, IFF_SIMPLEX | IFF_DRV_RUNNING);
@@ -200,6 +201,7 @@
 	if_setsoftc(ifp, sc);
 	sc->ifp = ifp;
 	mtx_unlock(&sc->ifp_lock);
+	*ifpp = ifp;
 done:
 	sx_xunlock(&t4_trace_lock);
 	end_synchronized_op(sc, 0);
@@ -207,7 +209,7 @@
 }
 
 static int
-t4_cloner_destroy(struct if_clone *ifc, if_t ifp)
+t4_cloner_destroy(struct if_clone *ifc, if_t ifp, uint32_t flags)
 {
 	struct adapter *sc;
 	int unit = if_getdunit(ifp);
@@ -234,8 +236,12 @@
 {
 
 	sx_init(&t4_trace_lock, "T4/T5 tracer lock");
-	t4_cloner = if_clone_advanced(t4_cloner_name, 0, t4_cloner_match,
-	    t4_cloner_create, t4_cloner_destroy);
+	struct if_clone_addreq req = {
+		.match_f = t4_cloner_match,
+		.create_f = t4_cloner_create,
+		.destroy_f = t4_cloner_destroy,
+	};
+	t4_cloner = ifc_attach_cloner(t4_cloner_name, &req);
 }
 
 void