Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[linux-2.6-microblaze.git] / net / ipv6 / addrconf.c

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 156ed57..a69ae7d 100644 (file)
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3393,9 +3393,15 @@ 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;
                        }