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| author | nikolay@redhat.com <nikolay@redhat.com> | 2013-06-26 17:13:39 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-27 22:50:15 -0700 |
| commit | ae0d67505ca30c635f7763564622c9710913f293 (patch) | |
| tree | 2aa35b8375c5896f8539fa0f62efa83e6f9308b1 | |
| parent | 97a1e6396b07581249506952a4c417dc6d2a4f9c (diff) | |
| download | op-kernel-dev-ae0d67505ca30c635f7763564622c9710913f293.zip op-kernel-dev-ae0d67505ca30c635f7763564622c9710913f293.tar.gz | |
bonding: when cloning a MAC use NET_ADDR_STOLEN
A simple semantic change, when a slave's MAC is cloned by the bond
master then set addr_assign_type to NET_ADDR_STOLEN instead of
NET_ADDR_SET. Also use bond_set_dev_addr() in BOND_FOM_ACTIVE mode
to change the bond's MAC address because the assign_type has to be
set properly.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 0da3c12..ec44580b 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -833,6 +833,24 @@ static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active, } } +/** + * bond_set_dev_addr - clone slave's address to bond + * @bond_dev: bond net device + * @slave_dev: slave net device + * + * Should be called with RTNL held. + */ +static void bond_set_dev_addr(struct net_device *bond_dev, + struct net_device *slave_dev) +{ + pr_debug("bond_dev=%p\n", bond_dev); + pr_debug("slave_dev=%p\n", slave_dev); + pr_debug("slave_dev->addr_len=%d\n", slave_dev->addr_len); + memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len); + bond_dev->addr_assign_type = NET_ADDR_STOLEN; + call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev); +} + /* * bond_do_fail_over_mac * @@ -855,11 +873,9 @@ static void bond_do_fail_over_mac(struct bonding *bond, switch (bond->params.fail_over_mac) { case BOND_FOM_ACTIVE: if (new_active) { - memcpy(bond->dev->dev_addr, new_active->dev->dev_addr, - new_active->dev->addr_len); write_unlock_bh(&bond->curr_slave_lock); read_unlock(&bond->lock); - call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev); + bond_set_dev_addr(bond->dev, new_active->dev); read_lock(&bond->lock); write_lock_bh(&bond->curr_slave_lock); } @@ -1290,17 +1306,6 @@ static void bond_netpoll_cleanup(struct net_device *bond_dev) /*---------------------------------- IOCTL ----------------------------------*/ -static void bond_set_dev_addr(struct net_device *bond_dev, - struct net_device *slave_dev) -{ - pr_debug("bond_dev=%p\n", bond_dev); - pr_debug("slave_dev=%p\n", slave_dev); - pr_debug("slave_dev->addr_len=%d\n", slave_dev->addr_len); - memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len); - bond_dev->addr_assign_type = NET_ADDR_SET; - call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev); -} - static netdev_features_t bond_fix_features(struct net_device *dev, netdev_features_t features) { |
