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[MACVLAN]: Allow setting mac address while device is up 

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-11-19 22:00:42 -08:00 committed by David S. Miller
parent 59891d53f4
commit ad5d20a639
1 changed files with 24 additions and 0 deletions
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24
drivers/net/macvlan.c
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@ -213,6 +213,29 @@ static int macvlan_stop(struct net_device *dev)
return 0;
}
static int macvlan_set_mac_address(struct net_device *dev, void *p)
{
struct macvlan_dev *vlan = netdev_priv(dev);
struct net_device *lowerdev = vlan->lowerdev;
struct sockaddr *addr = p;
int err;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
if (!(dev->flags & IFF_UP))
goto out;
err = dev_unicast_add(lowerdev, addr->sa_data, ETH_ALEN);
if (err < 0)
return err;
dev_unicast_delete(lowerdev, dev->dev_addr, ETH_ALEN);
out:
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
return 0;
}
static void macvlan_change_rx_flags(struct net_device *dev, int change)
{
struct macvlan_dev *vlan = netdev_priv(dev);
@ -300,6 +323,7 @@ static void macvlan_setup(struct net_device *dev)
dev->stop = macvlan_stop;
dev->change_mtu = macvlan_change_mtu;
dev->change_rx_flags = macvlan_change_rx_flags;
dev->set_mac_address = macvlan_set_mac_address;
dev->set_multicast_list = macvlan_set_multicast_list;
dev->hard_start_xmit = macvlan_hard_start_xmit;
dev->destructor = free_netdev;