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/arm/ether3.c b/drivers/net/arm/ether3.c
index 1f7a69c..d9de9bc 100644
--- a/drivers/net/arm/ether3.c
+++ b/drivers/net/arm/ether3.c
@@ -463,7 +463,7 @@
 	if (dev->flags & IFF_PROMISC) {
 		/* promiscuous mode */
 		priv(dev)->regs.config1 |= CFG1_RECVPROMISC;
-	} else if (dev->flags & IFF_ALLMULTI || dev->mc_count) {
+	} else if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev)) {
 		priv(dev)->regs.config1 |= CFG1_RECVSPECBRMULTI;
 	} else
 		priv(dev)->regs.config1 |= CFG1_RECVSPECBROAD;