net: use netdev_mc_count and netdev_mc_empty when appropriate

This patch replaces dev->mc_count in all drivers (hopefully I didn't miss
anything). Used spatch and did small tweaks and conding style changes when
it was suitable.

Jirka

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c
index 16c9191..ff015e1 100644
--- a/drivers/net/iseries_veth.c
+++ b/drivers/net/iseries_veth.c
@@ -958,7 +958,7 @@
 	write_lock_irqsave(&port->mcast_gate, flags);
 
 	if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
-			(dev->mc_count > VETH_MAX_MCAST)) {
+			(netdev_mc_count(dev) > VETH_MAX_MCAST)) {
 		port->promiscuous = 1;
 	} else {
 		struct dev_mc_list *dmi = dev->mc_list;
@@ -969,7 +969,7 @@
 		/* Update table */
 		port->num_mcast = 0;
 
-		for (i = 0; i < dev->mc_count; i++) {
+		for (i = 0; i < netdev_mc_count(dev); i++) {
 			u8 *addr = dmi->dmi_addr;
 			u64 xaddr = 0;