4 files changed, 33 insertions, 83 deletions

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 2df9276720a..7f8b20a34ee 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -635,7 +635,7 @@ static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bon
                         client_info->ntt = 0;
                 }
 
-                if (bond->vlgrp) {
+                if (bond_vlan_used(bond)) {
                         if (!vlan_get_tag(skb, &client_info->vlan_id))
                                 client_info->tag = 1;
                 }
@@ -847,7 +847,7 @@ static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[])
                 skb->priority = TC_PRIO_CONTROL;
                 skb->dev = slave->dev;
 
-                if (bond->vlgrp) {
+                if (bond_vlan_used(bond)) {
                         struct vlan_entry *vlan;
 
                         vlan = bond_next_vlan(bond,
diff --git a/drivers/net/bonding/bond_ipv6.c b/drivers/net/bonding/bond_ipv6.c
index 84fbd4ebd77..027a0ee7d85 100644
--- a/drivers/net/bonding/bond_ipv6.c
+++ b/drivers/net/bonding/bond_ipv6.c
@@ -183,10 +183,10 @@ static int bond_inet6addr_event(struct notifier_block *this,
                 }
 
                 list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
-                        if (!bond->vlgrp)
-                                continue;
-                        vlan_dev = vlan_group_get_device(bond->vlgrp,
-                                                         vlan->vlan_id);
+                        rcu_read_lock();
+                        vlan_dev = __vlan_find_dev_deep(bond->dev,
+                                                        vlan->vlan_id);
+                        rcu_read_unlock();
                         if (vlan_dev == event_dev) {
                                 switch (event) {
                                 case NETDEV_UP:
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index b9eaf5c0dc7..02842d05c11 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -408,9 +408,8 @@ int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb,
 }
 
 /*
- * In the following 3 functions, bond_vlan_rx_register(), bond_vlan_rx_add_vid
- * and bond_vlan_rx_kill_vid, We don't protect the slave list iteration with a
- * lock because:
+ * In the following 2 functions, bond_vlan_rx_add_vid and bond_vlan_rx_kill_vid,
+ * We don't protect the slave list iteration with a lock because:
  * a. This operation is performed in IOCTL context,
  * b. The operation is protected by the RTNL semaphore in the 8021q code,
  * c. Holding a lock with BH disabled while directly calling a base driver
@@ -426,33 +425,6 @@ int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb,
 */
 
 /**
- * bond_vlan_rx_register - Propagates registration to slaves
- * @bond_dev: bonding net device that got called
- * @grp: vlan group being registered
- */
-static void bond_vlan_rx_register(struct net_device *bond_dev,
-                                  struct vlan_group *grp)
-{
-        struct bonding *bond = netdev_priv(bond_dev);
-        struct slave *slave;
-        int i;
-
-        write_lock_bh(&bond->lock);
-        bond->vlgrp = grp;
-        write_unlock_bh(&bond->lock);
-
-        bond_for_each_slave(bond, slave, i) {
-                struct net_device *slave_dev = slave->dev;
-                const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
-
-                if ((slave_dev->features & NETIF_F_HW_VLAN_RX) &&
-                    slave_ops->ndo_vlan_rx_register) {
-                        slave_ops->ndo_vlan_rx_register(slave_dev, grp);
-                }
-        }
-}
-
-/**
  * bond_vlan_rx_add_vid - Propagates adding an id to slaves
  * @bond_dev: bonding net device that got called
  * @vid: vlan id being added
@@ -489,7 +461,6 @@ static void bond_vlan_rx_kill_vid(struct net_device *bond_dev, uint16_t vid)
 {
         struct bonding *bond = netdev_priv(bond_dev);
         struct slave *slave;
-        struct net_device *vlan_dev;
         int i, res;
 
         bond_for_each_slave(bond, slave, i) {
@@ -498,12 +469,7 @@ static void bond_vlan_rx_kill_vid(struct net_device *bond_dev, uint16_t vid)
 
                 if ((slave_dev->features & NETIF_F_HW_VLAN_FILTER) &&
                     slave_ops->ndo_vlan_rx_kill_vid) {
-                        /* Save and then restore vlan_dev in the grp array,
-                         * since the slave's driver might clear it.
-                         */
-                        vlan_dev = vlan_group_get_device(bond->vlgrp, vid);
                         slave_ops->ndo_vlan_rx_kill_vid(slave_dev, vid);
-                        vlan_group_set_device(bond->vlgrp, vid, vlan_dev);
                 }
         }
 
@@ -519,13 +485,6 @@ static void bond_add_vlans_on_slave(struct bonding *bond, struct net_device *sla
         struct vlan_entry *vlan;
         const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
 
-        if (!bond->vlgrp)
-                return;
-
-        if ((slave_dev->features & NETIF_F_HW_VLAN_RX) &&
-            slave_ops->ndo_vlan_rx_register)
-                slave_ops->ndo_vlan_rx_register(slave_dev, bond->vlgrp);
-
         if (!(slave_dev->features & NETIF_F_HW_VLAN_FILTER) ||
             !(slave_ops->ndo_vlan_rx_add_vid))
                 return;
@@ -539,30 +498,16 @@ static void bond_del_vlans_from_slave(struct bonding *bond,
 {
         const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
         struct vlan_entry *vlan;
-        struct net_device *vlan_dev;
-
-        if (!bond->vlgrp)
-                return;
 
         if (!(slave_dev->features & NETIF_F_HW_VLAN_FILTER) ||
             !(slave_ops->ndo_vlan_rx_kill_vid))
-                goto unreg;
+                return;
 
         list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
                 if (!vlan->vlan_id)
                         continue;
-                /* Save and then restore vlan_dev in the grp array,
-                 * since the slave's driver might clear it.
-                 */
-                vlan_dev = vlan_group_get_device(bond->vlgrp, vlan->vlan_id);
                 slave_ops->ndo_vlan_rx_kill_vid(slave_dev, vlan->vlan_id);
-                vlan_group_set_device(bond->vlgrp, vlan->vlan_id, vlan_dev);
         }
-
-unreg:
-        if ((slave_dev->features & NETIF_F_HW_VLAN_RX) &&
-            slave_ops->ndo_vlan_rx_register)
-                slave_ops->ndo_vlan_rx_register(slave_dev, NULL);
 }
 
 /*------------------------------- Link status -------------------------------*/
@@ -836,13 +781,13 @@ static void bond_resend_igmp_join_requests(struct bonding *bond)
         __bond_resend_igmp_join_requests(bond->dev);
 
         /* rejoin all groups on vlan devices */
-        if (bond->vlgrp) {
-                list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
-                        vlan_dev = vlan_group_get_device(bond->vlgrp,
-                                                         vlan->vlan_id);
-                        if (vlan_dev)
-                                __bond_resend_igmp_join_requests(vlan_dev);
-                }
+        list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
+                rcu_read_lock();
+                vlan_dev = __vlan_find_dev_deep(bond->dev,
+                                                vlan->vlan_id);
+                rcu_read_unlock();
+                if (vlan_dev)
+                        __bond_resend_igmp_join_requests(vlan_dev);
         }
 
         if (--bond->igmp_retrans > 0)
@@ -1557,7 +1502,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
         /* no need to lock since we're protected by rtnl_lock */
         if (slave_dev->features & NETIF_F_VLAN_CHALLENGED) {
                 pr_debug("%s: NETIF_F_VLAN_CHALLENGED\n", slave_dev->name);
-                if (bond->vlgrp) {
+                if (bond_vlan_used(bond)) {
                         pr_err("%s: Error: cannot enslave VLAN challenged slave %s on VLAN enabled bond %s\n",
                                bond_dev->name, slave_dev->name, bond_dev->name);
                         return -EPERM;
@@ -2065,7 +2010,7 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
                  */
                 memset(bond_dev->dev_addr, 0, bond_dev->addr_len);
 
-                if (bond->vlgrp) {
+                if (bond_vlan_used(bond)) {
                         pr_warning("%s: Warning: clearing HW address of %s while it still has VLANs.\n",
                                    bond_dev->name, bond_dev->name);
                         pr_warning("%s: When re-adding slaves, make sure the bond's HW address matches its VLANs'.\n",
@@ -2247,7 +2192,7 @@ static int bond_release_all(struct net_device *bond_dev)
          */
         memset(bond_dev->dev_addr, 0, bond_dev->addr_len);
 
-        if (bond->vlgrp) {
+        if (bond_vlan_used(bond)) {
                 pr_warning("%s: Warning: clearing HW address of %s while it still has VLANs.\n",
                            bond_dev->name, bond_dev->name);
                 pr_warning("%s: When re-adding slaves, make sure the bond's HW address matches its VLANs'.\n",
@@ -2685,7 +2630,7 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave)
                 if (!targets[i])
                         break;
                 pr_debug("basa: target %x\n", targets[i]);
-                if (!bond->vlgrp) {
+                if (!bond_vlan_used(bond)) {
                         pr_debug("basa: empty vlan: arp_send\n");
                         bond_arp_send(slave->dev, ARPOP_REQUEST, targets[i],
                                       bond->master_ip, 0);
@@ -2720,7 +2665,10 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave)
 
                 vlan_id = 0;
                 list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
-                        vlan_dev = vlan_group_get_device(bond->vlgrp, vlan->vlan_id);
+                        rcu_read_lock();
+                        vlan_dev = __vlan_find_dev_deep(bond->dev,
+                                                        vlan->vlan_id);
+                        rcu_read_unlock();
                         if (vlan_dev == rt->dst.dev) {
                                 vlan_id = vlan->vlan_id;
                                 pr_debug("basa: vlan match on %s %d\n",
@@ -3381,9 +3329,8 @@ static int bond_inetaddr_event(struct notifier_block *this, unsigned long event,
                 }
 
                 list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
-                        if (!bond->vlgrp)
-                                continue;
-                        vlan_dev = vlan_group_get_device(bond->vlgrp, vlan->vlan_id);
+                        vlan_dev = __vlan_find_dev_deep(bond->dev,
+                                                        vlan->vlan_id);
                         if (vlan_dev == event_dev) {
                                 switch (event) {
                                 case NETDEV_UP:
@@ -4335,10 +4282,9 @@ static const struct net_device_ops bond_netdev_ops = {
         .ndo_do_ioctl           = bond_do_ioctl,
         .ndo_set_multicast_list = bond_set_multicast_list,
         .ndo_change_mtu         = bond_change_mtu,
-        .ndo_set_mac_address    = bond_set_mac_address,
+        .ndo_set_mac_address    = bond_set_mac_address,
         .ndo_neigh_setup        = bond_neigh_setup,
-        .ndo_vlan_rx_register   = bond_vlan_rx_register,
-        .ndo_vlan_rx_add_vid    = bond_vlan_rx_add_vid,
+        .ndo_vlan_rx_add_vid    = bond_vlan_rx_add_vid,
         .ndo_vlan_rx_kill_vid   = bond_vlan_rx_kill_vid,
 #ifdef CONFIG_NET_POLL_CONTROLLER
         .ndo_netpoll_setup      = bond_netpoll_setup,
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 2936171f533..43526a2d275 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -240,7 +240,6 @@ struct bonding {
         struct   alb_bond_info alb_info;
         struct   bond_params params;
         struct   list_head vlan_list;
-        struct   vlan_group *vlgrp;
         struct   workqueue_struct *wq;
         struct   delayed_work mii_work;
         struct   delayed_work arp_work;
@@ -253,6 +252,11 @@ struct bonding {
 #endif /* CONFIG_DEBUG_FS */
 };
 
+static inline bool bond_vlan_used(struct bonding *bond)
+{
+        return !list_empty(&bond->vlan_list);
+}
+
 #define bond_slave_get_rcu(dev) \
         ((struct slave *) rcu_dereference(dev->rx_handler_data))