Index: arch/vax/if/sgec.c
===================================================================
RCS file: /cvs/src/sys/arch/vax/if/sgec.c,v
retrieving revision 1.30
diff -u -p -r1.30 sgec.c
--- arch/vax/if/sgec.c	27 Oct 2015 15:20:13 -0000	1.30
+++ arch/vax/if/sgec.c	4 Nov 2015 00:26:11 -0000
@@ -399,7 +399,7 @@ zestart(ifp)
 			panic("zestart"); /* XXX */
 
 		if ((i + sc->sc_inq) >= (TXDESCS - 1)) {
-			IF_PREPEND(&sc->sc_if.if_snd, m);
+			IFQ_PREPEND(&sc->sc_if.if_snd, m);
 			ifp->if_flags |= IFF_OACTIVE;
 			goto out;
 		}
Index: dev/pci/if_age.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_age.c,v
retrieving revision 1.29
diff -u -p -r1.29 if_age.c
--- dev/pci/if_age.c	25 Oct 2015 13:04:28 -0000	1.29
+++ dev/pci/if_age.c	4 Nov 2015 00:26:12 -0000
@@ -982,7 +982,7 @@ age_start(struct ifnet *ifp)
 			if (m_head == NULL)
 				ifp->if_oerrors++;
 			else {
-				IF_PREPEND(&ifp->if_snd, m_head);
+				IFQ_PREPEND(&ifp->if_snd, m_head);
 				ifp->if_flags |= IFF_OACTIVE;
 			}
 			break;
Index: dev/pci/if_alc.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_alc.c,v
retrieving revision 1.35
diff -u -p -r1.35 if_alc.c
--- dev/pci/if_alc.c	25 Oct 2015 13:04:28 -0000	1.35
+++ dev/pci/if_alc.c	4 Nov 2015 00:26:12 -0000
@@ -1390,7 +1390,7 @@ alc_start(struct ifnet *ifp)
 			if (m_head == NULL)
 				ifp->if_oerrors++;
 			else {
-				IF_PREPEND(&ifp->if_snd, m_head);
+				IFQ_PREPEND(&ifp->if_snd, m_head);
 				ifp->if_flags |= IFF_OACTIVE;
 			}
 			break;
Index: dev/pci/if_ale.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_ale.c,v
retrieving revision 1.40
diff -u -p -r1.40 if_ale.c
--- dev/pci/if_ale.c	25 Oct 2015 13:04:28 -0000	1.40
+++ dev/pci/if_ale.c	4 Nov 2015 00:26:12 -0000
@@ -1018,7 +1018,7 @@ ale_start(struct ifnet *ifp)
 			if (m_head == NULL)
 				ifp->if_oerrors++;
 			else {
-				IF_PREPEND(&ifp->if_snd, m_head);
+				IFQ_PREPEND(&ifp->if_snd, m_head);
 				ifp->if_flags |= IFF_OACTIVE;
 			}
 			break;
Index: dev/pci/if_jme.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_jme.c,v
retrieving revision 1.42
diff -u -p -r1.42 if_jme.c
--- dev/pci/if_jme.c	25 Oct 2015 13:04:28 -0000	1.42
+++ dev/pci/if_jme.c	4 Nov 2015 00:26:12 -0000
@@ -1251,7 +1251,7 @@ jme_start(struct ifnet *ifp)
 			if (m_head == NULL)
 				ifp->if_oerrors++;
 			else {
-				IF_PREPEND(&ifp->if_snd, m_head);
+				IFQ_PREPEND(&ifp->if_snd, m_head);
 				ifp->if_flags |= IFF_OACTIVE;
 			}
 			break;
Index: dev/pci/if_vr.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_vr.c,v
retrieving revision 1.144
diff -u -p -r1.144 if_vr.c
--- dev/pci/if_vr.c	25 Oct 2015 13:04:28 -0000	1.144
+++ dev/pci/if_vr.c	4 Nov 2015 00:26:12 -0000
@@ -1343,7 +1343,7 @@ vr_start(struct ifnet *ifp)
 		head_tx = cur_tx;
 		if (vr_encap(sc, &cur_tx, m_head)) {
 			/* Rollback, send what we were able to encap. */
-			IF_PREPEND(&ifp->if_snd, m_head);
+			IFQ_PREPEND(&ifp->if_snd, m_head);
 			break;
 		}
 		queued++;
Index: net/if_var.h
===================================================================
RCS file: /cvs/src/sys/net/if_var.h,v
retrieving revision 1.51
diff -u -p -r1.51 if_var.h
--- net/if_var.h	25 Oct 2015 11:58:11 -0000	1.51
+++ net/if_var.h	4 Nov 2015 00:26:13 -0000
@@ -358,6 +358,15 @@ do {									\
 		IF_POLL((ifq), (m));					\
 } while (/* CONSTCOND */0)
 
+#define	IFQ_PREPEND(ifq, m)						\
+do {									\
+	if (HFSC_ENABLED(ifq))						\
+		hfsc_requeue(((struct ifqueue *)(ifq)), m);		\
+	else {								\
+		IF_PREPEND((ifq), (m));					\
+	}								\
+} while (/* CONSTCOND */0)
+
 #define	IFQ_PURGE(ifq)							\
 do {									\
 	if (HFSC_ENABLED((ifq)))					\