[PATCH v2] ipvlan: flush arp table when mac address changed

[liuqifa]

From: Keefe Liu <liuq...@huawei.com>

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 flush the IPVlan's arp table.

Signed-off-by: Keefe Liu <liuq...@huawei.com>
---
 drivers/net/ipvlan/ipvlan_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 450eec2..4377c26 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:
-- 
1.8.3.1