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OpenCloudOS-Kernel
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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>
This commit is contained in:
nikolay@redhat.com 2013-06-26 17:13:39 +02:00 committed by David S. Miller
parent 97a1e6396b
commit ae0d67505c
1 changed files with 19 additions and 14 deletions
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33
drivers/net/bonding/bond_main.c
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@ -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)
{