xen: netfront: explicitly generate arp_notify event after migration.

Use newly introduced netif_notify_peers() method to ensure a gratuitous ARP is
generated after a migration.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: xen-devel@lists.xensource.com
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index d504e2b6025..b50fedcef8a 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1621,6 +1621,7 @@ static void backend_changed(struct xenbus_device *dev,
                 if (xennet_connect(netdev) != 0)
                         break;
                 xenbus_switch_state(dev, XenbusStateConnected);
+                netif_notify_peers(netdev);
                 break;
 
         case XenbusStateClosing: