643-bridge_remove_ipv6_dependency.patch

--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -92,6 +92,12 @@ extern void			addrconf_join_solict(struc
 extern void			addrconf_leave_solict(struct inet6_dev *idev,
 					const struct in6_addr *addr);
 
+extern int			(*ipv6_dev_get_saddr_hook)(struct net *net,
+						struct net_device *dev,
+						const struct in6_addr *daddr,
+						unsigned int srcprefs,
+						struct in6_addr *saddr);
+
 static inline unsigned long addrconf_timeout_fixup(u32 timeout,
 						   unsigned int unit)
 {
--- a/net/bridge/Kconfig
+++ b/net/bridge/Kconfig
@@ -6,7 +6,6 @@ config BRIDGE
 	tristate "802.1d Ethernet Bridging"
 	select LLC
 	select STP
-	depends on IPV6 || IPV6=n
 	---help---
 	  If you say Y here, then your Linux box will be able to act as an
 	  Ethernet bridge, which means that the different Ethernet segments it
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -44,3 +44,4 @@ obj-y += addrconf_core.o exthdrs_core.o
 obj-$(CONFIG_INET) += output_core.o protocol.o $(ipv6-offload)
 
 obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o
+obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_stubs.o
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1243,7 +1243,7 @@ out:
 	return ret;
 }
 
-int ipv6_dev_get_saddr(struct net *net, const struct net_device *dst_dev,
+static int __ipv6_dev_get_saddr(struct net *net, const struct net_device *dst_dev,
 		       const struct in6_addr *daddr, unsigned int prefs,
 		       struct in6_addr *saddr)
 {
@@ -1368,7 +1368,6 @@ try_nextdev:
 	in6_ifa_put(hiscore->ifa);
 	return 0;
 }
-EXPORT_SYMBOL(ipv6_dev_get_saddr);
 
 int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
 		    unsigned char banned_flags)
@@ -4947,6 +4946,9 @@ int __init addrconf_init(void)
 
 	ipv6_addr_label_rtnl_register();
 
+	BUG_ON(ipv6_dev_get_saddr_hook != NULL);
+	rcu_assign_pointer(ipv6_dev_get_saddr_hook, __ipv6_dev_get_saddr);
+
 	return 0;
 errout:
 	rtnl_af_unregister(&inet6_ops);
@@ -4965,6 +4967,9 @@ void addrconf_cleanup(void)
 	struct net_device *dev;
 	int i;
 
+	rcu_assign_pointer(ipv6_dev_get_saddr_hook, NULL);
+	synchronize_rcu();
+
 	unregister_netdevice_notifier(&ipv6_dev_notf);
 	unregister_pernet_subsys(&addrconf_ops);