diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 375dc71..975ee5e 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -560,9 +560,9 @@
 
 	lock_sock(sk);
 	if (join)
-		ret = __ip_mc_join_group(sk, &mreq);
+		ret = ip_mc_join_group(sk, &mreq);
 	else
-		ret = __ip_mc_leave_group(sk, &mreq);
+		ret = ip_mc_leave_group(sk, &mreq);
 	release_sock(sk);
 
 	return ret;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 5cb1ef4..ad3f866 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1850,7 +1850,10 @@
 	pmc->sfcount[MCAST_EXCLUDE] = 1;
 }
 
-int __ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr)
+/* Join a multicast group
+ */
+
+int ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr)
 {
 	__be32 addr = imr->imr_multiaddr.s_addr;
 	struct ip_mc_socklist *iml, *i;
@@ -1898,20 +1901,6 @@
 done:
 	return err;
 }
-EXPORT_SYMBOL(__ip_mc_join_group);
-
-/* Join a multicast group
- */
-int ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr)
-{
-	int ret;
-
-	rtnl_lock();
-	ret = __ip_mc_join_group(sk, imr);
-	rtnl_unlock();
-
-	return ret;
-}
 EXPORT_SYMBOL(ip_mc_join_group);
 
 static int ip_mc_leave_src(struct sock *sk, struct ip_mc_socklist *iml,
@@ -1934,7 +1923,7 @@
 	return err;
 }
 
-int __ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
+int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
 {
 	struct inet_sock *inet = inet_sk(sk);
 	struct ip_mc_socklist *iml;
@@ -1979,18 +1968,6 @@
 out:
 	return ret;
 }
-EXPORT_SYMBOL(__ip_mc_leave_group);
-
-int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
-{
-	int ret;
-
-	rtnl_lock();
-	ret = __ip_mc_leave_group(sk, imr);
-	rtnl_unlock();
-
-	return ret;
-}
 EXPORT_SYMBOL(ip_mc_leave_group);
 
 int ip_mc_source(int add, int omode, struct sock *sk, struct
@@ -2010,7 +1987,7 @@
 	if (!ipv4_is_multicast(addr))
 		return -EINVAL;
 
-	rtnl_lock();
+	ASSERT_RTNL();
 
 	imr.imr_multiaddr.s_addr = mreqs->imr_multiaddr;
 	imr.imr_address.s_addr = mreqs->imr_interface;
@@ -2124,9 +2101,8 @@
 	ip_mc_add_src(in_dev, &mreqs->imr_multiaddr, omode, 1,
 		&mreqs->imr_sourceaddr, 1);
 done:
-	rtnl_unlock();
 	if (leavegroup)
-		return ip_mc_leave_group(sk, &imr);
+		err = ip_mc_leave_group(sk, &imr);
 	return err;
 }
 
@@ -2148,7 +2124,7 @@
 	    msf->imsf_fmode != MCAST_EXCLUDE)
 		return -EINVAL;
 
-	rtnl_lock();
+	ASSERT_RTNL();
 
 	imr.imr_multiaddr.s_addr = msf->imsf_multiaddr;
 	imr.imr_address.s_addr = msf->imsf_interface;
@@ -2210,7 +2186,6 @@
 	pmc->sfmode = msf->imsf_fmode;
 	err = 0;
 done:
-	rtnl_unlock();
 	if (leavegroup)
 		err = ip_mc_leave_group(sk, &imr);
 	return err;
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 5171709..f6a0d54 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -541,9 +541,18 @@
 	switch (optname) {
 	case IP_ADD_MEMBERSHIP:
 	case IP_ADD_SOURCE_MEMBERSHIP:
+	case IP_BLOCK_SOURCE:
 	case IP_DROP_MEMBERSHIP:
+	case IP_DROP_SOURCE_MEMBERSHIP:
+	case IP_MSFILTER:
+	case IP_UNBLOCK_SOURCE:
+	case MCAST_BLOCK_SOURCE:
+	case MCAST_MSFILTER:
 	case MCAST_JOIN_GROUP:
+	case MCAST_JOIN_SOURCE_GROUP:
 	case MCAST_LEAVE_GROUP:
+	case MCAST_LEAVE_SOURCE_GROUP:
+	case MCAST_UNBLOCK_SOURCE:
 		return true;
 	}
 	return false;
@@ -861,9 +870,9 @@
 		}
 
 		if (optname == IP_ADD_MEMBERSHIP)
-			err = __ip_mc_join_group(sk, &mreq);
+			err = ip_mc_join_group(sk, &mreq);
 		else
-			err = __ip_mc_leave_group(sk, &mreq);
+			err = ip_mc_leave_group(sk, &mreq);
 		break;
 	}
 	case IP_MSFILTER:
@@ -928,7 +937,7 @@
 			mreq.imr_multiaddr.s_addr = mreqs.imr_multiaddr;
 			mreq.imr_address.s_addr = mreqs.imr_interface;
 			mreq.imr_ifindex = 0;
-			err = __ip_mc_join_group(sk, &mreq);
+			err = ip_mc_join_group(sk, &mreq);
 			if (err && err != -EADDRINUSE)
 				break;
 			omode = MCAST_INCLUDE;
@@ -960,9 +969,9 @@
 		mreq.imr_ifindex = greq.gr_interface;
 
 		if (optname == MCAST_JOIN_GROUP)
-			err = __ip_mc_join_group(sk, &mreq);
+			err = ip_mc_join_group(sk, &mreq);
 		else
-			err = __ip_mc_leave_group(sk, &mreq);
+			err = ip_mc_leave_group(sk, &mreq);
 		break;
 	}
 	case MCAST_JOIN_SOURCE_GROUP:
@@ -1005,7 +1014,7 @@
 			mreq.imr_multiaddr = psin->sin_addr;
 			mreq.imr_address.s_addr = 0;
 			mreq.imr_ifindex = greqs.gsr_interface;
-			err = __ip_mc_join_group(sk, &mreq);
+			err = ip_mc_join_group(sk, &mreq);
 			if (err && err != -EADDRINUSE)
 				break;
 			greqs.gsr_interface = mreq.imr_ifindex;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 88d2cf0..158378e 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2473,9 +2473,9 @@
 
 	lock_sock(sk);
 	if (join)
-		ret = __ipv6_sock_mc_join(sk, ifindex, addr);
+		ret = ipv6_sock_mc_join(sk, ifindex, addr);
 	else
-		ret = __ipv6_sock_mc_drop(sk, ifindex, addr);
+		ret = ipv6_sock_mc_drop(sk, ifindex, addr);
 	release_sock(sk);
 
 	return ret;
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index f2b731d..cc58837 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -124,6 +124,11 @@
 	case IPV6_DROP_MEMBERSHIP:
 	case MCAST_JOIN_GROUP:
 	case MCAST_LEAVE_GROUP:
+	case MCAST_JOIN_SOURCE_GROUP:
+	case MCAST_LEAVE_SOURCE_GROUP:
+	case MCAST_BLOCK_SOURCE:
+	case MCAST_UNBLOCK_SOURCE:
+	case MCAST_MSFILTER:
 		return true;
 	}
 	return false;
@@ -597,9 +602,9 @@
 			break;
 
 		if (optname == IPV6_ADD_MEMBERSHIP)
-			retv = __ipv6_sock_mc_join(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);
+			retv = ipv6_sock_mc_join(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);
 		else
-			retv = __ipv6_sock_mc_drop(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);
+			retv = ipv6_sock_mc_drop(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);
 		break;
 	}
 	case IPV6_JOIN_ANYCAST:
@@ -638,11 +643,11 @@
 		}
 		psin6 = (struct sockaddr_in6 *)&greq.gr_group;
 		if (optname == MCAST_JOIN_GROUP)
-			retv = __ipv6_sock_mc_join(sk, greq.gr_interface,
-						   &psin6->sin6_addr);
+			retv = ipv6_sock_mc_join(sk, greq.gr_interface,
+						 &psin6->sin6_addr);
 		else
-			retv = __ipv6_sock_mc_drop(sk, greq.gr_interface,
-						   &psin6->sin6_addr);
+			retv = ipv6_sock_mc_drop(sk, greq.gr_interface,
+						 &psin6->sin6_addr);
 		break;
 	}
 	case MCAST_JOIN_SOURCE_GROUP:
@@ -674,8 +679,8 @@
 			struct sockaddr_in6 *psin6;
 
 			psin6 = (struct sockaddr_in6 *)&greqs.gsr_group;
-			retv = __ipv6_sock_mc_join(sk, greqs.gsr_interface,
-						   &psin6->sin6_addr);
+			retv = ipv6_sock_mc_join(sk, greqs.gsr_interface,
+						 &psin6->sin6_addr);
 			/* prior join w/ different source is ok */
 			if (retv && retv != -EADDRINUSE)
 				break;
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 1dd1fed..cbb66fd 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -132,7 +132,7 @@
 	return iv > 0 ? iv : 1;
 }
 
-int __ipv6_sock_mc_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
+int ipv6_sock_mc_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
 {
 	struct net_device *dev = NULL;
 	struct ipv6_mc_socklist *mc_lst;
@@ -199,24 +199,12 @@
 
 	return 0;
 }
-EXPORT_SYMBOL(__ipv6_sock_mc_join);
-
-int ipv6_sock_mc_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
-{
-	int ret;
-
-	rtnl_lock();
-	ret = __ipv6_sock_mc_join(sk, ifindex, addr);
-	rtnl_unlock();
-
-	return ret;
-}
 EXPORT_SYMBOL(ipv6_sock_mc_join);
 
 /*
  *	socket leave on multicast group
  */
-int __ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr)
+int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr)
 {
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct ipv6_mc_socklist *mc_lst;
@@ -255,18 +243,6 @@
 
 	return -EADDRNOTAVAIL;
 }
-EXPORT_SYMBOL(__ipv6_sock_mc_drop);
-
-int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr)
-{
-	int ret;
-
-	rtnl_lock();
-	ret = __ipv6_sock_mc_drop(sk, ifindex, addr);
-	rtnl_unlock();
-
-	return ret;
-}
 EXPORT_SYMBOL(ipv6_sock_mc_drop);
 
 /* called with rcu_read_lock() */
@@ -460,7 +436,7 @@
 	read_unlock_bh(&idev->lock);
 	rcu_read_unlock();
 	if (leavegroup)
-		return ipv6_sock_mc_drop(sk, pgsr->gsr_interface, group);
+		err = ipv6_sock_mc_drop(sk, pgsr->gsr_interface, group);
 	return err;
 }
 
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 08d9555..19b9cce 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -1405,9 +1405,11 @@
 
 	mreq.imr_ifindex = dev->ifindex;
 
+	rtnl_lock();
 	lock_sock(sk);
 	ret = ip_mc_join_group(sk, &mreq);
 	release_sock(sk);
+	rtnl_unlock();
 
 	return ret;
 }
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index fc2fb11..04836dd 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -246,11 +246,11 @@
 			return 0;
 		mreqn.imr_multiaddr = remote->ipv4;
 		mreqn.imr_ifindex = ub->ifindex;
-		err = __ip_mc_join_group(sk, &mreqn);
+		err = ip_mc_join_group(sk, &mreqn);
 	} else {
 		if (!ipv6_addr_is_multicast(&remote->ipv6))
 			return 0;
-		err = __ipv6_sock_mc_join(sk, ub->ifindex, &remote->ipv6);
+		err = ipv6_sock_mc_join(sk, ub->ifindex, &remote->ipv6);
 	}
 	return err;
 }