diff options
| author |   Petr Machata <petrm@mellanox.com> | 2018-12-13 11:54:30 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-12-13 18:41:38 -0800 |
| commit | 3a37a9636cf3a1af2621a33f7eef8a2a3da81030 (patch) | |
| tree | 39d632745b9834d8297856b8900b793ec43c45d7 /net/core | |
| parent | Merge tag 'mlx5e-updates-2018-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux (diff) | |
| download | linux-dev-3a37a9636cf3a1af2621a33f7eef8a2a3da81030.tar.xz linux-dev-3a37a9636cf3a1af2621a33f7eef8a2a3da81030.zip | |
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>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 4 | ||||
| -rw-r--r-- | net/core/dev_ioctl.c | 2 | ||||
| -rw-r--r-- | net/core/rtnetlink.c | 2 |
3 files changed, 5 insertions, 3 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 754284873355..7250a3a73fa4 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -7759,10 +7759,12 @@ EXPORT_SYMBOL(dev_set_group); * dev_set_mac_address - Change Media Access Control Address * @dev: device * @sa: new address + * @extack: netlink extended ack * * Change the hardware (MAC) address of the device */ -int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa) +int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa, + struct netlink_ext_ack *extack) { const struct net_device_ops *ops = dev->netdev_ops; int err; diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c index da273ec3cc57..31380fd5a4e2 100644 --- a/net/core/dev_ioctl.c +++ b/net/core/dev_ioctl.c @@ -246,7 +246,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) case SIOCSIFHWADDR: if (dev->addr_len > sizeof(struct sockaddr)) return -EINVAL; - return dev_set_mac_address(dev, &ifr->ifr_hwaddr); + return dev_set_mac_address(dev, &ifr->ifr_hwaddr, NULL); case SIOCSIFHWBROADCAST: if (ifr->ifr_hwaddr.sa_family != dev->type) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 3b6e551f9e69..f8bdb8adab2c 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -2444,7 +2444,7 @@ static int do_setlink(const struct sk_buff *skb, sa->sa_family = dev->type; memcpy(sa->sa_data, nla_data(tb[IFLA_ADDRESS]), dev->addr_len); - err = dev_set_mac_address(dev, sa); + err = dev_set_mac_address(dev, sa, extack); kfree(sa); if (err) goto errout; |