+ return 0;
+}
+
+int register_vlan_dev(struct net_device *dev)
+{
+ struct vlan_dev_info *vlan = VLAN_DEV_INFO(dev);
+ struct net_device *real_dev = vlan->real_dev;
+ unsigned short vlan_id = vlan->vlan_id;
+ struct vlan_group *grp, *ngrp = NULL;
+ int err;
+
+ grp = __vlan_find_group(real_dev->ifindex);
+ if (!grp) {
+ ngrp = grp = vlan_group_alloc(real_dev->ifindex);
+ if (!grp)
+ return -ENOBUFS;
+ }
+
+ err = register_netdevice(dev);
+ if (err < 0)
+ goto out_free_group;
+
+ /* Account for reference in struct vlan_dev_info */
+ dev_hold(real_dev);
+
+ vlan_transfer_operstate(real_dev, dev);
+ linkwatch_fire_event(dev); /* _MUST_ call rfc2863_policy() */
+
+ /* So, got the sucker initialized, now lets place
+ * it into our local structure.
+ */
+ vlan_group_set_device(grp, vlan_id, dev);
+ if (ngrp && real_dev->features & NETIF_F_HW_VLAN_RX)
+ real_dev->vlan_rx_register(real_dev, ngrp);
+ if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
+ real_dev->vlan_rx_add_vid(real_dev, vlan_id);
+
+ if (vlan_proc_add_dev(dev) < 0)
+ printk(KERN_WARNING "VLAN: failed to add proc entry for %s\n",
+ dev->name);
+ return 0;
+
+out_free_group:
+ if (ngrp)
+ vlan_group_free(ngrp);
+ return err;
+}
+
+/* Attach a VLAN device to a mac address (ie Ethernet Card).
+ * Returns 0 if the device was created or a negative error code otherwise.
+ */
+static int register_vlan_device(struct net_device *real_dev,
+ unsigned short VLAN_ID)
+{
+ struct net_device *new_dev;
+ char name[IFNAMSIZ];
+ int err;
+
+#ifdef VLAN_DEBUG
+ printk(VLAN_DBG "%s: if_name -:%s:- vid: %i\n",
+ __FUNCTION__, eth_IF_name, VLAN_ID);
+#endif
+
+ if (VLAN_ID >= VLAN_VID_MASK)
+ return -ERANGE;
+
+ err = vlan_check_real_dev(real_dev, VLAN_ID);
+ if (err < 0)
+ return err;
+