ipvlan: call netdevice notifier when master mac address changed

When master device's mac has been changed, the commit
32c10bbfe914 ("ipvlan: always use the current L2 addr of the
master") makes the IPVlan devices's mac changed also, but it
doesn't do related works such as flush the IPVlan devices's
arp table.

Signed-off-by: Keefe Liu <liuqifa@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 450eec264a5e..4377c26f714d 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -792,8 +792,10 @@ static int ipvlan_device_event(struct notifier_block *unused,
                 break;
 
         case NETDEV_CHANGEADDR:
-                list_for_each_entry(ipvlan, &port->ipvlans, pnode)
+                list_for_each_entry(ipvlan, &port->ipvlans, pnode) {
                         ether_addr_copy(ipvlan->dev->dev_addr, dev->dev_addr);
+                        call_netdevice_notifiers(NETDEV_CHANGEADDR, ipvlan->dev);
+                }
                 break;
 
         case NETDEV_PRE_TYPE_CHANGE: