net/ibmvnic: Fix RTNL deadlock during device reset

Commit a5681e20 ("net/ibmnvic: Fix deadlock problem
in reset") made the change to hold the RTNL lock during
driver reset but still calls netdev_notify_peers, which
results in a deadlock. Instead, use call_netdevice_notifiers,
which is functionally the same except that it does not
take the RTNL lock again.

Fixes: a5681e20 ("net/ibmnvic: Fix deadlock problem in reset")
Signed-off-by: NThomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/ibm/ibmvnic.c

@@ -1859,7 +1859,7 @@ static int do_reset(struct ibmvnic_adapter *adapter,
 
 	if (adapter->reset_reason != VNIC_RESET_FAILOVER &&
 	    adapter->reset_reason != VNIC_RESET_CHANGE_PARAM)
-		netdev_notify_peers(netdev);
+		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, netdev);
 
 	netif_carrier_on(netdev);