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net: ipvlan: Issue NETDEV_PRE_CHANGEADDR

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A NETDEV_CHANGEADDR event implies a change of address of each of the
IPVLANs of this IPVLAN device. Therefore propagate NETDEV_PRE_CHANGEADDR
to all the IPVLANs.

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 11:54:41 +00:00 committed by David S. Miller
parent b89df65c5e
commit 61345fab48
1 changed files with 14 additions and 0 deletions
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14
drivers/net/ipvlan/ipvlan_main.c
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@ -759,10 +759,13 @@ EXPORT_SYMBOL_GPL(ipvlan_link_register);
static int ipvlan_device_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{
struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr);
struct netdev_notifier_pre_changeaddr_info *prechaddr_info;
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
struct ipvl_dev *ipvlan, *next;
struct ipvl_port *port;
LIST_HEAD(lst_kill);
int err;
if (!netif_is_ipvlan_port(dev))
return NOTIFY_DONE;
@ -818,6 +821,17 @@ static int ipvlan_device_event(struct notifier_block *unused,
ipvlan_adjust_mtu(ipvlan, dev);
break;
case NETDEV_PRE_CHANGEADDR:
prechaddr_info = ptr;
list_for_each_entry(ipvlan, &port->ipvlans, pnode) {
err = dev_pre_changeaddr_notify(ipvlan->dev,
prechaddr_info->dev_addr,
extack);
if (err)
return notifier_from_errno(err);
}
break;
case NETDEV_CHANGEADDR:
list_for_each_entry(ipvlan, &port->ipvlans, pnode) {
ether_addr_copy(ipvlan->dev->dev_addr, dev->dev_addr);