@@ -254,6 +254,8 @@ static const struct flow_dissector_key flow_keys_bonding_keys[] = {
static struct flow_dissector flow_keys_bonding __read_mostly;
+static const u8 lacpdu_multicast[] = MULTICAST_LACPDU_ADDR;
+
/*-------------------------- Forward declarations ---------------------------*/
static int bond_init(struct net_device *bond_dev);
@@ -865,12 +867,8 @@ static void bond_hw_addr_flush(struct net_device *bond_dev,
dev_uc_unsync(slave_dev, bond_dev);
dev_mc_unsync(slave_dev, bond_dev);
- if (BOND_MODE(bond) == BOND_MODE_8023AD) {
- /* del lacpdu mc addr from mc list */
- u8 lacpdu_multicast[ETH_ALEN] = MULTICAST_LACPDU_ADDR;
-
+ if (BOND_MODE(bond) == BOND_MODE_8023AD)
dev_mc_del(slave_dev, lacpdu_multicast);
- }
}
/*--------------------------- Active slave change ---------------------------*/
@@ -2171,12 +2169,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
dev_uc_sync_multiple(slave_dev, bond_dev);
netif_addr_unlock_bh(bond_dev);
- if (BOND_MODE(bond) == BOND_MODE_8023AD) {
- /* add lacpdu mc addr to mc list */
- u8 lacpdu_multicast[ETH_ALEN] = MULTICAST_LACPDU_ADDR;
-
+ if (BOND_MODE(bond) == BOND_MODE_8023AD)
dev_mc_add(slave_dev, lacpdu_multicast);
- }
}
bond->slave_cnt++;
@@ -4211,6 +4205,9 @@ static int bond_open(struct net_device *bond_dev)
/* register to receive LACPDUs */
bond->recv_probe = bond_3ad_lacpdu_recv;
bond_3ad_initiate_agg_selection(bond, 1);
+
+ bond_for_each_slave(bond, slave, iter)
+ dev_mc_add(slave->dev, lacpdu_multicast);
}
if (bond_mode_can_use_xmit_hash(bond))
@@ -4222,6 +4219,7 @@ static int bond_open(struct net_device *bond_dev)
static int bond_close(struct net_device *bond_dev)
{
struct bonding *bond = netdev_priv(bond_dev);
+ struct slave *slave;
bond_work_cancel_all(bond);
bond->send_peer_notif = 0;
@@ -4229,6 +4227,19 @@ static int bond_close(struct net_device *bond_dev)
bond_alb_deinitialize(bond);
bond->recv_probe = NULL;
+ if (bond_uses_primary(bond)) {
+ rcu_read_lock();
+ slave = rcu_dereference(bond->curr_active_slave);
+ if (slave)
+ bond_hw_addr_flush(bond_dev, slave->dev);
+ rcu_read_unlock();
+ } else {
+ struct list_head *iter;
+
+ bond_for_each_slave(bond, slave, iter)
+ bond_hw_addr_flush(bond_dev, slave->dev);
+ }
+
return 0;
}
Netdev drivers are expected to call dev_{uc,mc}_sync() in their ndo_set_rx_mode method and dev_{uc,mc}_unsync() in their ndo_stop method. This is mentioned in the kerneldoc for those dev_* functions. The bonding driver calls dev_{uc,mc}_unsync() during ndo_uninit instead of ndo_stop. This is ineffective because address lists (dev->{uc,mc}) have already been emptied in unregister_netdevice_many() before ndo_uninit is called. This mistake can result in addresses being leftover on former bond slaves after a bond has been deleted; see test_LAG_cleanup() in the last patch in this series. Add unsync calls, via bond_hw_addr_flush(), at their expected location, bond_close(). Add dev_mc_add() call to bond_open() to match the above change. The existing call __bond_release_one->bond_hw_addr_flush is left in place because there are other call chains that lead to __bond_release_one(), not just ndo_uninit. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com> --- drivers/net/bonding/bond_main.c | 31 +++++++++++++++++++++---------- 1 file changed, 21 insertions(+), 10 deletions(-)