ibm_newemac: Don't call dev_mc_add() before device is registered

We must not call dev_mc_add() from within our HW configure which happens
before we initialize and register the netdev. Do it in open() instead.

Thanks to Sebastian Siewior for tracking it down.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/ibm_newemac/core.c

@@ -663,9 +663,6 @@ static int emac_configure(struct emac_instance *dev)
 	if (emac_phy_gpcs(dev->phy.mode))
 		emac_mii_reset_phy(&dev->phy);
 
-	/* Required for Pause packet support in EMAC */
-	dev_mc_add(ndev, default_mcast_addr, sizeof(default_mcast_addr), 1);
-
 	return 0;
 }
 
@@ -1150,6 +1147,9 @@ static int emac_open(struct net_device *ndev)
 	} else
 		netif_carrier_on(dev->ndev);
 
+	/* Required for Pause packet support in EMAC */
+	dev_mc_add(ndev, default_mcast_addr, sizeof(default_mcast_addr), 1);
+
 	emac_configure(dev);
 	mal_poll_add(dev->mal, &dev->commac);
 	mal_enable_tx_channel(dev->mal, dev->mal_tx_chan);