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/enic/enic_main.c b/drivers/net/enic/enic_main.c
index c81bc4b..94749eb 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -827,11 +827,11 @@
 	int multicast = (netdev->flags & IFF_MULTICAST) ? 1 : 0;
 	int broadcast = (netdev->flags & IFF_BROADCAST) ? 1 : 0;
 	int promisc = (netdev->flags & IFF_PROMISC) ? 1 : 0;
+	unsigned int mc_count = netdev_mc_count(netdev);
 	int allmulti = (netdev->flags & IFF_ALLMULTI) ||
-	    (netdev->mc_count > ENIC_MULTICAST_PERFECT_FILTERS);
+		       mc_count > ENIC_MULTICAST_PERFECT_FILTERS;
 	unsigned int flags = netdev->flags | (allmulti ? IFF_ALLMULTI : 0);
 	u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN];
-	unsigned int mc_count = netdev->mc_count;
 	unsigned int i, j;
 
 	if (mc_count > ENIC_MULTICAST_PERFECT_FILTERS)