3 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index b2c9becc02e8..42814a2ec9d7 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -167,7 +167,7 @@ config IPV6_SIT
 	  Tunneling means encapsulating data of one protocol type within
 	  another protocol and sending it over a channel that understands the
 	  encapsulating protocol. This driver implements encapsulation of IPv6
-	  into IPv4 packets. This is useful if you want to connect to IPv6
+	  into IPv4 packets. This is useful if you want to connect two IPv6
 	  networks over an IPv4-only path.
 
 	  Saying M here will produce a module called sit.ko. If unsure, say Y.
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index c8c6e33d1163..2de3c464fe75 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -358,7 +358,7 @@ static int pim6_rcv(struct sk_buff *skb)
 	if (pim->type != ((PIM_VERSION << 4) | PIM_REGISTER) ||
 	    (pim->flags & PIM_NULL_REGISTER) ||
 	    (ip_compute_csum((void *)pim, sizeof(*pim)) != 0 &&
-	     (u16)csum_fold(skb_checksum(skb, 0, skb->len, 0))))
+	     csum_fold(skb_checksum(skb, 0, skb->len, 0))))
 		goto drop;
 
 	/* check if the inner packet is destined to mcast group */
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 06de9d0e1f6b..db6fdc1498aa 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -52,6 +52,7 @@
 #include <net/udp.h>
 #include <net/udplite.h>
 #include <net/xfrm.h>
+#include <net/compat.h>
 
 #include <asm/uaccess.h>
 
@@ -779,6 +780,10 @@ int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
 	if (level != SOL_IPV6)
 		return -ENOPROTOOPT;
 
+	if (optname >= MCAST_JOIN_GROUP && optname <= MCAST_MSFILTER)
+		return compat_mc_setsockopt(sk, level, optname, optval, optlen,
+			ipv6_setsockopt);
+
 	err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
 #ifdef CONFIG_NETFILTER
 	/* we need to exclude all possible ENOPROTOOPTs except default case */