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net: bonding: Issue NETDEV_PRE_CHANGEADDR 

Give interested parties an opportunity to veto an impending HW address
change.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2018-12-13 11:54:46 +00:00 committed by David S. Miller
parent b924591428
commit 1caf40dec1
1 changed files with 6 additions and 0 deletions
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6
drivers/net/bonding/bond_main.c
View File

@ -612,8 +612,14 @@ static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active,
static int bond_set_dev_addr(struct net_device *bond_dev,
struct net_device *slave_dev)
{
int err;
netdev_dbg(bond_dev, "bond_dev=%p slave_dev=%p slave_dev->name=%s slave_dev->addr_len=%d\n",
bond_dev, slave_dev, slave_dev->name, slave_dev->addr_len);
err = dev_pre_changeaddr_notify(bond_dev, slave_dev->dev_addr, NULL);
if (err)
return err;
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);