diff --git a/sys/netinet/tcp_syncache.c b/sys/netinet/tcp_syncache.c
--- a/sys/netinet/tcp_syncache.c
+++ b/sys/netinet/tcp_syncache.c
@@ -882,8 +882,8 @@
 		if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
 			inp->in6p_laddr = sc->sc_inc.inc6_laddr;
 		INP_HASH_WLOCK(&V_tcbinfo);
-		error = in6_pcbconnect_mbuf(inp, (struct sockaddr *)&sin6,
-		    thread0.td_ucred, m, false);
+		error = in6_pcbconnect(inp, (struct sockaddr *)&sin6,
+		    thread0.td_ucred, false);
 		INP_HASH_WUNLOCK(&V_tcbinfo);
 		if (error != 0) {
 			inp->in6p_laddr = laddr6;
diff --git a/sys/netinet/tcp_usrreq.c b/sys/netinet/tcp_usrreq.c
--- a/sys/netinet/tcp_usrreq.c
+++ b/sys/netinet/tcp_usrreq.c
@@ -1476,7 +1476,7 @@
 	INP_WLOCK_ASSERT(inp);
 
 	INP_HASH_WLOCK(&V_tcbinfo);
-	error = in6_pcbconnect(inp, nam, td->td_ucred);
+	error = in6_pcbconnect(inp, nam, td->td_ucred, true);
 	INP_HASH_WUNLOCK(&V_tcbinfo);
 	if (error != 0)
 		return (error);
diff --git a/sys/netinet6/in6_pcb.h b/sys/netinet6/in6_pcb.h
--- a/sys/netinet6/in6_pcb.h
+++ b/sys/netinet6/in6_pcb.h
@@ -74,9 +74,7 @@
 void	in6_pcbpurgeif0(struct inpcbinfo *, struct ifnet *);
 void	in6_losing(struct inpcb *);
 int	in6_pcbbind(struct inpcb *, struct sockaddr *, struct ucred *);
-int	in6_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *);
-int	in6_pcbconnect_mbuf(struct inpcb *, struct sockaddr *,
-	    struct ucred *, struct mbuf *, bool);
+int	in6_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *, bool);
 void	in6_pcbdisconnect(struct inpcb *);
 struct	inpcb *
 	in6_pcblookup_local(struct inpcbinfo *,
diff --git a/sys/netinet6/in6_pcb.c b/sys/netinet6/in6_pcb.c
--- a/sys/netinet6/in6_pcb.c
+++ b/sys/netinet6/in6_pcb.c
@@ -414,8 +414,8 @@
  * then pick one.
  */
 int
-in6_pcbconnect_mbuf(struct inpcb *inp, struct sockaddr *nam,
-    struct ucred *cred, struct mbuf *m, bool rehash)
+in6_pcbconnect(struct inpcb *inp, struct sockaddr *nam, struct ucred *cred,
+    bool rehash)
 {
 	struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
 	struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nam;
@@ -497,13 +497,6 @@
 	return (0);
 }
 
-int
-in6_pcbconnect(struct inpcb *inp, struct sockaddr *nam, struct ucred *cred)
-{
-
-	return (in6_pcbconnect_mbuf(inp, nam, cred, NULL, true));
-}
-
 void
 in6_pcbdisconnect(struct inpcb *inp)
 {
diff --git a/sys/netinet6/udp6_usrreq.c b/sys/netinet6/udp6_usrreq.c
--- a/sys/netinet6/udp6_usrreq.c
+++ b/sys/netinet6/udp6_usrreq.c
@@ -1184,7 +1184,7 @@
 	inp->inp_vflag &= ~INP_IPV4;
 	inp->inp_vflag |= INP_IPV6;
 	INP_HASH_WLOCK(pcbinfo);
-	error = in6_pcbconnect(inp, nam, td->td_ucred);
+	error = in6_pcbconnect(inp, nam, td->td_ucred, true);
 	INP_HASH_WUNLOCK(pcbinfo);
 	/*
 	 * If connect succeeds, mark socket as connected. If