]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/net/bonding/bond_main.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
[linux-2.6-omap-h63xx.git] / drivers / net / bonding / bond_main.c
index 2039f7838f2df713a0afe9a4bbe1aecc8955e617..6425603bc37976bebbec44283b37f4d377325c65 100644 (file)
@@ -383,7 +383,7 @@ struct vlan_entry *bond_next_vlan(struct bonding *bond, struct vlan_entry *curr)
  */
 int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev)
 {
-       unsigned short vlan_id;
+       unsigned short uninitialized_var(vlan_id);
 
        if (!list_empty(&bond->vlan_list) &&
            !(slave_dev->features & NETIF_F_HW_VLAN_TX) &&
@@ -1464,10 +1464,12 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
                        dev_set_allmulti(slave_dev, 1);
                }
 
+               netif_tx_lock_bh(bond_dev);
                /* upload master's mc_list to new slave */
                for (dmi = bond_dev->mc_list; dmi; dmi = dmi->next) {
                        dev_mc_add (slave_dev, dmi->dmi_addr, dmi->dmi_addrlen, 0);
                }
+               netif_tx_unlock_bh(bond_dev);
        }
 
        if (bond->params.mode == BOND_MODE_8023AD) {
@@ -1821,7 +1823,9 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
                }
 
                /* flush master's mc_list from slave */
+               netif_tx_lock_bh(bond_dev);
                bond_mc_list_flush(bond_dev, slave_dev);
+               netif_tx_unlock_bh(bond_dev);
        }
 
        netdev_set_master(slave_dev, NULL);
@@ -1942,7 +1946,9 @@ static int bond_release_all(struct net_device *bond_dev)
                        }
 
                        /* flush master's mc_list from slave */
+                       netif_tx_lock_bh(bond_dev);
                        bond_mc_list_flush(bond_dev, slave_dev);
+                       netif_tx_unlock_bh(bond_dev);
                }
 
                netdev_set_master(slave_dev, NULL);
@@ -2623,7 +2629,7 @@ static int bond_arp_rcv(struct sk_buff *skb, struct net_device *dev, struct pack
        unsigned char *arp_ptr;
        __be32 sip, tip;
 
-       if (dev->nd_net != &init_net)
+       if (dev_net(dev) != &init_net)
                goto out;
 
        if (!(dev->priv_flags & IFF_BONDING) || !(dev->flags & IFF_MASTER))
@@ -2640,10 +2646,7 @@ static int bond_arp_rcv(struct sk_buff *skb, struct net_device *dev, struct pack
        if (!slave || !slave_do_arp_validate(bond, slave))
                goto out_unlock;
 
-       /* ARP header, plus 2 device addresses, plus 2 IP addresses.  */
-       if (!pskb_may_pull(skb, (sizeof(struct arphdr) +
-                                (2 * dev->addr_len) +
-                                (2 * sizeof(u32)))))
+       if (!pskb_may_pull(skb, arp_hdr_len(dev)))
                goto out_unlock;
 
        arp = arp_hdr(skb);
@@ -2795,14 +2798,11 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
        }
 
        if (do_failover) {
-               rtnl_lock();
                write_lock_bh(&bond->curr_slave_lock);
 
                bond_select_active_slave(bond);
 
                write_unlock_bh(&bond->curr_slave_lock);
-               rtnl_unlock();
-
        }
 
 re_arm:
@@ -2859,8 +2859,6 @@ void bond_activebackup_arp_mon(struct work_struct *work)
 
                                slave->link = BOND_LINK_UP;
 
-                               rtnl_lock();
-
                                write_lock_bh(&bond->curr_slave_lock);
 
                                if ((!bond->curr_active_slave) &&
@@ -2896,7 +2894,6 @@ void bond_activebackup_arp_mon(struct work_struct *work)
                                }
 
                                write_unlock_bh(&bond->curr_slave_lock);
-                               rtnl_unlock();
                        }
                } else {
                        read_lock(&bond->curr_slave_lock);
@@ -2966,7 +2963,6 @@ void bond_activebackup_arp_mon(struct work_struct *work)
                               bond->dev->name,
                               slave->dev->name);
 
-                       rtnl_lock();
                        write_lock_bh(&bond->curr_slave_lock);
 
                        bond_select_active_slave(bond);
@@ -2974,8 +2970,6 @@ void bond_activebackup_arp_mon(struct work_struct *work)
 
                        write_unlock_bh(&bond->curr_slave_lock);
 
-                       rtnl_unlock();
-
                        bond->current_arp_slave = slave;
 
                        if (slave) {
@@ -2993,13 +2987,10 @@ void bond_activebackup_arp_mon(struct work_struct *work)
                               bond->primary_slave->dev->name);
 
                        /* primary is up so switch to it */
-                       rtnl_lock();
                        write_lock_bh(&bond->curr_slave_lock);
                        bond_change_active_slave(bond, bond->primary_slave);
                        write_unlock_bh(&bond->curr_slave_lock);
 
-                       rtnl_unlock();
-
                        slave = bond->primary_slave;
                        slave->jiffies = jiffies;
                } else {
@@ -3074,8 +3065,6 @@ out:
 
 #ifdef CONFIG_PROC_FS
 
-#define SEQ_START_TOKEN ((void *)1)
-
 static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
 {
        struct bonding *bond = seq->private;
@@ -3293,17 +3282,14 @@ static int bond_create_proc_entry(struct bonding *bond)
        struct net_device *bond_dev = bond->dev;
 
        if (bond_proc_dir) {
-               bond->proc_entry = create_proc_entry(bond_dev->name,
-                                                    S_IRUGO,
-                                                    bond_proc_dir);
+               bond->proc_entry = proc_create_data(bond_dev->name,
+                                                   S_IRUGO, bond_proc_dir,
+                                                   &bond_info_fops, bond);
                if (bond->proc_entry == NULL) {
                        printk(KERN_WARNING DRV_NAME
                               ": Warning: Cannot create /proc/net/%s/%s\n",
                               DRV_NAME, bond_dev->name);
                } else {
-                       bond->proc_entry->data = bond;
-                       bond->proc_entry->proc_fops = &bond_info_fops;
-                       bond->proc_entry->owner = THIS_MODULE;
                        memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
                }
        }
@@ -3479,7 +3465,7 @@ static int bond_netdev_event(struct notifier_block *this, unsigned long event, v
 {
        struct net_device *event_dev = (struct net_device *)ptr;
 
-       if (event_dev->nd_net != &init_net)
+       if (dev_net(event_dev) != &init_net)
                return NOTIFY_DONE;
 
        dprintk("event_dev: %s, event: %lx\n",
@@ -3517,6 +3503,9 @@ static int bond_inetaddr_event(struct notifier_block *this, unsigned long event,
        struct bonding *bond, *bond_next;
        struct vlan_entry *vlan, *vlan_next;
 
+       if (dev_net(ifa->ifa_dev->dev) != &init_net)
+               return NOTIFY_DONE;
+
        list_for_each_entry_safe(bond, bond_next, &bond_dev_list, bond_list) {
                if (bond->dev == event_dev) {
                        switch (event) {
@@ -3769,42 +3758,45 @@ static struct net_device_stats *bond_get_stats(struct net_device *bond_dev)
 {
        struct bonding *bond = bond_dev->priv;
        struct net_device_stats *stats = &(bond->stats), *sstats;
+       struct net_device_stats local_stats;
        struct slave *slave;
        int i;
 
-       memset(stats, 0, sizeof(struct net_device_stats));
+       memset(&local_stats, 0, sizeof(struct net_device_stats));
 
        read_lock_bh(&bond->lock);
 
        bond_for_each_slave(bond, slave, i) {
                sstats = slave->dev->get_stats(slave->dev);
-               stats->rx_packets += sstats->rx_packets;
-               stats->rx_bytes += sstats->rx_bytes;
-               stats->rx_errors += sstats->rx_errors;
-               stats->rx_dropped += sstats->rx_dropped;
+               local_stats.rx_packets += sstats->rx_packets;
+               local_stats.rx_bytes += sstats->rx_bytes;
+               local_stats.rx_errors += sstats->rx_errors;
+               local_stats.rx_dropped += sstats->rx_dropped;
 
-               stats->tx_packets += sstats->tx_packets;
-               stats->tx_bytes += sstats->tx_bytes;
-               stats->tx_errors += sstats->tx_errors;
-               stats->tx_dropped += sstats->tx_dropped;
+               local_stats.tx_packets += sstats->tx_packets;
+               local_stats.tx_bytes += sstats->tx_bytes;
+               local_stats.tx_errors += sstats->tx_errors;
+               local_stats.tx_dropped += sstats->tx_dropped;
 
-               stats->multicast += sstats->multicast;
-               stats->collisions += sstats->collisions;
+               local_stats.multicast += sstats->multicast;
+               local_stats.collisions += sstats->collisions;
 
-               stats->rx_length_errors += sstats->rx_length_errors;
-               stats->rx_over_errors += sstats->rx_over_errors;
-               stats->rx_crc_errors += sstats->rx_crc_errors;
-               stats->rx_frame_errors += sstats->rx_frame_errors;
-               stats->rx_fifo_errors += sstats->rx_fifo_errors;
-               stats->rx_missed_errors += sstats->rx_missed_errors;
+               local_stats.rx_length_errors += sstats->rx_length_errors;
+               local_stats.rx_over_errors += sstats->rx_over_errors;
+               local_stats.rx_crc_errors += sstats->rx_crc_errors;
+               local_stats.rx_frame_errors += sstats->rx_frame_errors;
+               local_stats.rx_fifo_errors += sstats->rx_fifo_errors;
+               local_stats.rx_missed_errors += sstats->rx_missed_errors;
 
-               stats->tx_aborted_errors += sstats->tx_aborted_errors;
-               stats->tx_carrier_errors += sstats->tx_carrier_errors;
-               stats->tx_fifo_errors += sstats->tx_fifo_errors;
-               stats->tx_heartbeat_errors += sstats->tx_heartbeat_errors;
-               stats->tx_window_errors += sstats->tx_window_errors;
+               local_stats.tx_aborted_errors += sstats->tx_aborted_errors;
+               local_stats.tx_carrier_errors += sstats->tx_carrier_errors;
+               local_stats.tx_fifo_errors += sstats->tx_fifo_errors;
+               local_stats.tx_heartbeat_errors += sstats->tx_heartbeat_errors;
+               local_stats.tx_window_errors += sstats->tx_window_errors;
        }
 
+       memcpy(stats, &local_stats, sizeof(struct net_device_stats));
+
        read_unlock_bh(&bond->lock);
 
        return stats;
@@ -3937,8 +3929,6 @@ static void bond_set_multicast_list(struct net_device *bond_dev)
        struct bonding *bond = bond_dev->priv;
        struct dev_mc_list *dmi;
 
-       write_lock_bh(&bond->lock);
-
        /*
         * Do promisc before checking multicast_mode
         */
@@ -3959,6 +3949,8 @@ static void bond_set_multicast_list(struct net_device *bond_dev)
                bond_set_allmulti(bond, -1);
        }
 
+       read_lock(&bond->lock);
+
        bond->flags = bond_dev->flags;
 
        /* looking for addresses to add to slaves' mc list */
@@ -3979,7 +3971,7 @@ static void bond_set_multicast_list(struct net_device *bond_dev)
        bond_mc_list_destroy(bond);
        bond_mc_list_copy(bond_dev->mc_list, bond, GFP_ATOMIC);
 
-       write_unlock_bh(&bond->lock);
+       read_unlock(&bond->lock);
 }
 
 /*
@@ -4526,11 +4518,12 @@ static void bond_free_all(void)
                struct net_device *bond_dev = bond->dev;
 
                bond_work_cancel_all(bond);
+               netif_tx_lock_bh(bond_dev);
                bond_mc_list_destroy(bond);
+               netif_tx_unlock_bh(bond_dev);
                /* Release the bonded slaves */
                bond_release_all(bond_dev);
-               bond_deinit(bond_dev);
-               unregister_netdevice(bond_dev);
+               bond_destroy(bond);
        }
 
 #ifdef CONFIG_PROC_FS
@@ -4549,14 +4542,19 @@ static void bond_free_all(void)
 int bond_parse_parm(const char *buf, struct bond_parm_tbl *tbl)
 {
        int mode = -1, i, rv;
-       char modestr[BOND_MAX_MODENAME_LEN + 1] = { 0, };
+       char *p, modestr[BOND_MAX_MODENAME_LEN + 1] = { 0, };
+
+       for (p = (char *)buf; *p; p++)
+               if (!(isdigit(*p) || isspace(*p)))
+                       break;
 
-       rv = sscanf(buf, "%d", &mode);
-       if (!rv) {
+       if (*p)
                rv = sscanf(buf, "%20s", modestr);
-               if (!rv)
-                       return -1;
-       }
+       else
+               rv = sscanf(buf, "%d", &mode);
+
+       if (!rv)
+               return -1;
 
        for (i = 0; tbl[i].modename; i++) {
                if (mode == tbl[i].mode)
@@ -4883,14 +4881,16 @@ int bond_create(char *name, struct bond_params *params, struct bonding **newbond
        down_write(&bonding_rwsem);
 
        /* Check to see if the bond already exists. */
-       list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
-               if (strnicmp(bond->dev->name, name, IFNAMSIZ) == 0) {
-                       printk(KERN_ERR DRV_NAME
+       if (name) {
+               list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
+                       if (strnicmp(bond->dev->name, name, IFNAMSIZ) == 0) {
+                               printk(KERN_ERR DRV_NAME
                               ": cannot add bond %s; it already exists\n",
-                              name);
-                       res = -EPERM;
-                       goto out_rtnl;
-               }
+                                      name);
+                               res = -EPERM;
+                               goto out_rtnl;
+                       }
+       }
 
        bond_dev = alloc_netdev(sizeof(struct bonding), name ? name : "",
                                ether_setup);