diff options
| -rw-r--r-- | net/ipv6/addrconf.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 7d0e86d53953..a54e7a1f675d 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -2183,6 +2183,9 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event, break; } + if (!idev && dev->mtu >= IPV6_MIN_MTU) + idev = ipv6_add_dev(dev); + if (idev) idev->if_flags |= IF_READY; } else { @@ -2245,12 +2248,18 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event, break; case NETDEV_CHANGEMTU: - if ( idev && dev->mtu >= IPV6_MIN_MTU) { + if (idev && dev->mtu >= IPV6_MIN_MTU) { rt6_mtu_change(dev, dev->mtu); idev->cnf.mtu6 = dev->mtu; break; } + if (!idev && dev->mtu >= IPV6_MIN_MTU) { + idev = ipv6_add_dev(dev); + if (idev) + break; + } + /* MTU falled under IPV6_MIN_MTU. Stop IPv6 on this interface. */ case NETDEV_DOWN: |