bridge br_multicast: IPv6 MLD support.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

net/bridge/Kconfig

@@ -33,14 +33,14 @@ config BRIDGE
 	  If unsure, say N.
 
 config BRIDGE_IGMP_SNOOPING
-	bool "IGMP snooping"
+	bool "IGMP/MLD snooping"
 	depends on BRIDGE
 	depends on INET
 	default y
 	---help---
 	  If you say Y here, then the Ethernet bridge will be able selectively
-	  forward multicast traffic based on IGMP traffic received from each
-	  port.
+	  forward multicast traffic based on IGMP/MLD traffic received from
+	  each port.
 
 	  Say N to exclude this support and reduce the binary size.
 

net/bridge/br_private.h

@@ -49,6 +49,9 @@ struct br_ip
 {
 	union {
 		__be32	ip4;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+		struct in6_addr ip6;
+#endif
 	} u;
 	__be16		proto;
 };