1 files changed, 15 insertions, 5 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index c1e124bc8e1e..a7bcc0ab5e99 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3386,9 +3386,15 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
                         }
 
                         if (idev) {
-                                if (idev->if_flags & IF_READY)
-                                        /* device is already configured. */
+                                if (idev->if_flags & IF_READY) {
+                                        /* device is already configured -
+                                         * but resend MLD reports, we might
+                                         * have roamed and need to update
+                                         * multicast snooping switches
+                                         */
+                                        ipv6_mc_up(idev);
                                         break;
+                                }
                                 idev->if_flags |= IF_READY;
                         }
 
@@ -4009,6 +4015,12 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp, bool bump_id)
 
         if (bump_id)
                 rt_genid_bump_ipv6(dev_net(dev));
+
+        /* Make sure that a new temporary address will be created
+         * before this temporary address becomes deprecated.
+         */
+        if (ifp->flags & IFA_F_TEMPORARY)
+                addrconf_verify_rtnl();
 }
 
 static void addrconf_dad_run(struct inet6_dev *idev)
@@ -5540,8 +5552,7 @@ static void addrconf_disable_change(struct net *net, __s32 newf)
         struct net_device *dev;
         struct inet6_dev *idev;
 
-        rcu_read_lock();
-        for_each_netdev_rcu(net, dev) {
+        for_each_netdev(net, dev) {
                 idev = __in6_dev_get(dev);
                 if (idev) {
                         int changed = (!idev->cnf.disable_ipv6) ^ (!newf);
@@ -5550,7 +5561,6 @@ static void addrconf_disable_change(struct net *net, __s32 newf)
                                 dev_disable_change(idev);
                 }
         }
-        rcu_read_unlock();
 }
 
 static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int newf)