net: dev: Add extack argument to dev_set_mac_address()

A follow-up patch will add a notifier type NETDEV_PRE_CHANGEADDR, which
allows vetoing of MAC address changes. One prominent path to that
notification is through dev_set_mac_address(). Therefore give this
function an extack argument, so that it can be packed together with the
notification. Thus a textual reason for rejection (or a warning) can be
communicated back to the user.

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 11:54:30 +00:00
committed by David S. Miller
parent 95302c394c
commit 3a37a9636c
13 changed files with 29 additions and 24 deletions

View File

@@ -3202,7 +3202,7 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
tun_debug(KERN_DEBUG, tun, "set hw address: %pM\n",
ifr.ifr_hwaddr.sa_data);
ret = dev_set_mac_address(tun->dev, &ifr.ifr_hwaddr);
ret = dev_set_mac_address(tun->dev, &ifr.ifr_hwaddr, NULL);
break;
case TUNGETSNDBUF: