bonding, ipv4, ipv6, vlan: Handle NETDEV_BONDING_FAILOVER like NETDEV_NOTIFY_PEERS

It is undesirable for the bonding driver to be poking into higher
level protocols, and notifiers provide a way to avoid that.  This does
mean removing the ability to configure reptitition of gratuitous ARPs
and unsolicited NAs.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 62cbd15..01a0ffc 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1747,6 +1747,7 @@
 		fib6_run_gc(~0UL, net);
 		break;
 	case NETDEV_NOTIFY_PEERS:
+	case NETDEV_BONDING_FAILOVER:
 		ndisc_send_unsol_na(dev);
 		break;
 	default: