4 files changed, 57 insertions, 45 deletions

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index c7912876a210..61a57dc2ac99 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -135,6 +135,7 @@ struct vlan_dev_info {
         int old_allmulti;               /* similar to above. */
         int old_promiscuity;            /* similar to above. */
         struct net_device *real_dev;    /* the underlying device/interface */
+        unsigned char real_dev_addr[ETH_ALEN];
         struct proc_dir_entry *dent;    /* Holds the proc data */
         unsigned long cnt_inc_headroom_on_tx; /* How many times did we have to grow the skb on TX. */
         unsigned long cnt_encap_on_xmit;      /* How many times did we have to encapsulate the skb on TX. */
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index e7583eea6fda..b463ba47024d 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -345,12 +345,8 @@ static int vlan_dev_init(struct net_device *dev)
                                           (1<<__LINK_STATE_DORMANT))) |
                       (1<<__LINK_STATE_PRESENT);
 
-        /* TODO: maybe just assign it to be ETHERNET? */
-        dev->type = real_dev->type;
-
         memcpy(dev->broadcast, real_dev->broadcast, real_dev->addr_len);
         memcpy(dev->dev_addr, real_dev->dev_addr, real_dev->addr_len);
-        dev->addr_len = real_dev->addr_len;
 
         if (real_dev->features & NETIF_F_HW_VLAN_TX) {
                 dev->hard_header     = real_dev->hard_header;
@@ -364,6 +360,7 @@ static int vlan_dev_init(struct net_device *dev)
                 dev->rebuild_header  = vlan_dev_rebuild_header;
         }
         dev->hard_header_parse = real_dev->hard_header_parse;
+        dev->hard_header_cache = NULL;
 
         lockdep_set_class(&dev->_xmit_lock, &vlan_netdev_xmit_lock_key);
         return 0;
@@ -373,6 +370,8 @@ void vlan_setup(struct net_device *new_dev)
 {
         SET_MODULE_OWNER(new_dev);
 
+        ether_setup(new_dev);
+
         /* new_dev->ifindex = 0;  it will be set when added to
          * the global list.
          * iflink is set as well.
@@ -392,7 +391,6 @@ void vlan_setup(struct net_device *new_dev)
         new_dev->init = vlan_dev_init;
         new_dev->open = vlan_dev_open;
         new_dev->stop = vlan_dev_stop;
-        new_dev->set_mac_address = vlan_dev_set_mac_address;
         new_dev->set_multicast_list = vlan_dev_set_multicast_list;
         new_dev->destructor = free_netdev;
         new_dev->do_ioctl = vlan_dev_ioctl;
@@ -592,6 +590,30 @@ out_free_newdev:
         return err;
 }
 
+static void vlan_sync_address(struct net_device *dev,
+                              struct net_device *vlandev)
+{
+        struct vlan_dev_info *vlan = VLAN_DEV_INFO(vlandev);
+
+        /* May be called without an actual change */
+        if (!compare_ether_addr(vlan->real_dev_addr, dev->dev_addr))
+                return;
+
+        /* vlan address was different from the old address and is equal to
+         * the new address */
+        if (compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
+            !compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
+                dev_unicast_delete(dev, vlandev->dev_addr, ETH_ALEN);
+
+        /* vlan address was equal to the old address and is different from
+         * the new address */
+        if (!compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
+            compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
+                dev_unicast_add(dev, vlandev->dev_addr, ETH_ALEN);
+
+        memcpy(vlan->real_dev_addr, dev->dev_addr, ETH_ALEN);
+}
+
 static int vlan_device_event(struct notifier_block *unused, unsigned long event, void *ptr)
 {
         struct net_device *dev = ptr;
@@ -618,6 +640,17 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
                 }
                 break;
 
+        case NETDEV_CHANGEADDR:
+                /* Adjust unicast filters on underlying device */
+                for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+                        vlandev = vlan_group_get_device(grp, i);
+                        if (!vlandev)
+                                continue;
+
+                        vlan_sync_address(dev, vlandev);
+                }
+                break;
+
         case NETDEV_DOWN:
                 /* Put all VLANs for this dev in the down state too.  */
                 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index fe6bb0f7d275..62ce1c519aab 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -58,7 +58,6 @@ int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
 int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
 int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
 int vlan_dev_change_mtu(struct net_device *dev, int new_mtu);
-int vlan_dev_set_mac_address(struct net_device *dev, void* addr);
 int vlan_dev_open(struct net_device* dev);
 int vlan_dev_stop(struct net_device* dev);
 int vlan_dev_ioctl(struct net_device* dev, struct ifreq *ifr, int cmd);
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 95afe387b952..d4a62d1b52b4 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -612,44 +612,6 @@ void vlan_dev_get_vid(const struct net_device *dev, unsigned short *result)
         *result = VLAN_DEV_INFO(dev)->vlan_id;
 }
 
-int vlan_dev_set_mac_address(struct net_device *dev, void *addr_struct_p)
-{
-        struct sockaddr *addr = (struct sockaddr *)(addr_struct_p);
-        int i;
-
-        if (netif_running(dev))
-                return -EBUSY;
-
-        memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
-
-        printk("%s: Setting MAC address to ", dev->name);
-        for (i = 0; i < 6; i++)
-                printk(" %2.2x", dev->dev_addr[i]);
-        printk(".\n");
-
-        if (memcmp(VLAN_DEV_INFO(dev)->real_dev->dev_addr,
-                   dev->dev_addr,
-                   dev->addr_len) != 0) {
-                if (!(VLAN_DEV_INFO(dev)->real_dev->flags & IFF_PROMISC)) {
-                        int flgs = VLAN_DEV_INFO(dev)->real_dev->flags;
-
-                        /* Increment our in-use promiscuity counter */
-                        dev_set_promiscuity(VLAN_DEV_INFO(dev)->real_dev, 1);
-
-                        /* Make PROMISC visible to the user. */
-                        flgs |= IFF_PROMISC;
-                        printk("VLAN (%s):  Setting underlying device (%s) to promiscious mode.\n",
-                               dev->name, VLAN_DEV_INFO(dev)->real_dev->name);
-                        dev_change_flags(VLAN_DEV_INFO(dev)->real_dev, flgs);
-                }
-        } else {
-                printk("VLAN (%s):  Underlying device (%s) has same MAC, not checking promiscious mode.\n",
-                       dev->name, VLAN_DEV_INFO(dev)->real_dev->name);
-        }
-
-        return 0;
-}
-
 static inline int vlan_dmi_equals(struct dev_mc_list *dmi1,
                                   struct dev_mc_list *dmi2)
 {
@@ -736,15 +698,32 @@ static void vlan_flush_mc_list(struct net_device *dev)
 
 int vlan_dev_open(struct net_device *dev)
 {
-        if (!(VLAN_DEV_INFO(dev)->real_dev->flags & IFF_UP))
+        struct vlan_dev_info *vlan = VLAN_DEV_INFO(dev);
+        struct net_device *real_dev = vlan->real_dev;
+        int err;
+
+        if (!(real_dev->flags & IFF_UP))
                 return -ENETDOWN;
 
+        if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
+                err = dev_unicast_add(real_dev, dev->dev_addr, ETH_ALEN);
+                if (err < 0)
+                        return err;
+        }
+        memcpy(vlan->real_dev_addr, real_dev->dev_addr, ETH_ALEN);
+
         return 0;
 }
 
 int vlan_dev_stop(struct net_device *dev)
 {
+        struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
+
         vlan_flush_mc_list(dev);
+
+        if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
+                dev_unicast_delete(real_dev, dev->dev_addr, dev->addr_len);
+
         return 0;
 }