diff options
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index b143ce91e08..ce41616d9d1 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -876,6 +876,23 @@ static void bond_mc_swap(struct bonding *bond, struct slave *new_active, } } +static struct slave *bond_get_old_active(struct bonding *bond, + struct slave *new_active) +{ + struct slave *slave; + int i; + + bond_for_each_slave(bond, slave, i) { + if (slave == new_active) + continue; + + if (ether_addr_equal(bond->dev->dev_addr, slave->dev->dev_addr)) + return slave; + } + + return NULL; +} + /* * bond_do_fail_over_mac * @@ -919,6 +936,9 @@ static void bond_do_fail_over_mac(struct bonding *bond, write_unlock_bh(&bond->curr_slave_lock); read_unlock(&bond->lock); + if (!old_active) + old_active = bond_get_old_active(bond, new_active); + if (old_active) { memcpy(tmp_mac, new_active->dev->dev_addr, ETH_ALEN); memcpy(saddr.sa_data, old_active->dev->dev_addr, @@ -1545,9 +1565,10 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) bond_dev->name, slave_dev->name); } - /* already enslaved */ - if (slave_dev->flags & IFF_SLAVE) { - pr_debug("Error, Device was already enslaved\n"); + /* already in-use? */ + if (netdev_is_rx_handler_busy(slave_dev)) { + netdev_err(bond_dev, + "Error: Device is in use and cannot be enslaved\n"); return -EBUSY; } @@ -2188,6 +2209,7 @@ static int bond_release_and_destroy(struct net_device *bond_dev, bond_dev->priv_flags |= IFF_DISABLE_NETPOLL; pr_info("%s: destroying bond %s.\n", bond_dev->name, bond_dev->name); + bond_remove_proc_entry(bond); unregister_netdevice(bond_dev); } return ret; |