bonding: do vlan cleanup

Now when all devices are cleaned up, bond can be cleaned up as well

- remove bond->vlgrp
- remove bond_vlan_rx_register
- substitute necessary occurences of vlan_group_get_device

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 2df9276..7f8b20a 100644 (file)
--- 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 84fbd4e..027a0ee 100644 (file)
--- 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 b9eaf5c..02842d0 100644 (file)
--- 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 2936171..43526a2 100644 (file)
--- 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))