1 files changed, 11 insertions, 22 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 5a5f8bd4597a..f96ed76d8fa4 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2154,6 +2154,15 @@ static void addrconf_dev_config(struct net_device *dev)
 
         ASSERT_RTNL();
 
+        if ((dev->type != ARPHRD_ETHER) &&
+            (dev->type != ARPHRD_FDDI) &&
+            (dev->type != ARPHRD_IEEE802_TR) &&
+            (dev->type != ARPHRD_ARCNET) &&
+            (dev->type != ARPHRD_INFINIBAND)) {
+                /* Alas, we support only Ethernet autoconfiguration. */
+                return;
+        }
+
         idev = addrconf_add_dev(dev);
         if (idev == NULL)
                 return;
@@ -2241,36 +2250,16 @@ static void addrconf_ip6_tnl_config(struct net_device *dev)
         ip6_tnl_add_linklocal(idev);
 }
 
-static int ipv6_hwtype(struct net_device *dev)
-{
-        if ((dev->type == ARPHRD_ETHER) ||
-            (dev->type == ARPHRD_LOOPBACK) ||
-            (dev->type == ARPHRD_SIT) ||
-            (dev->type == ARPHRD_TUNNEL6) ||
-            (dev->type == ARPHRD_FDDI) ||
-            (dev->type == ARPHRD_IEEE802_TR) ||
-            (dev->type == ARPHRD_ARCNET) ||
-            (dev->type == ARPHRD_INFINIBAND))
-                return 1;
-
-        return 0;
-}
-
 static int addrconf_notify(struct notifier_block *this, unsigned long event,
                            void * data)
 {
         struct net_device *dev = (struct net_device *) data;
-        struct inet6_dev *idev;
+        struct inet6_dev *idev = __in6_dev_get(dev);
         int run_pending = 0;
 
-        if (!ipv6_hwtype(dev))
-                return NOTIFY_OK;
-
-        idev = __in6_dev_get(dev);
-
         switch(event) {
         case NETDEV_REGISTER:
-                if (!idev) {
+                if (!idev && dev->mtu >= IPV6_MIN_MTU) {
                         idev = ipv6_add_dev(dev);
                         if (!idev)
                                 printk(KERN_WARNING "IPv6: add_dev failed for %s\n",