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/at91_ether.c b/drivers/net/arm/at91_ether.c
index c8bc60a7..17d85d98 100644
--- a/drivers/net/arm/at91_ether.c
+++ b/drivers/net/arm/at91_ether.c
@@ -563,7 +563,7 @@
 	mc_filter[0] = mc_filter[1] = 0;
 
 	curr = dev->mc_list;
-	for (i = 0; i < dev->mc_count; i++, curr = curr->next) {
+	for (i = 0; i < netdev_mc_count(dev); i++, curr = curr->next) {
 		if (!curr) break;	/* unexpected end of list */
 
 		bitnr = hash_get_index(curr->dmi_addr);
@@ -592,7 +592,7 @@
 		at91_emac_write(AT91_EMAC_HSH, -1);
 		at91_emac_write(AT91_EMAC_HSL, -1);
 		cfg |= AT91_EMAC_MTI;
-	} else if (dev->mc_count > 0) {			/* Enable specific multicasts */
+	} else if (!netdev_mc_empty(dev)) { /* Enable specific multicasts */
 		at91ether_sethashtable(dev);
 		cfg |= AT91_EMAC_MTI;
 	} else if (dev->flags & (~IFF_ALLMULTI)) {	/* Disable all multicast mode */