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/sgiseeq.c b/drivers/net/sgiseeq.c
index 6b364a6..ed999d3 100644
--- a/drivers/net/sgiseeq.c
+++ b/drivers/net/sgiseeq.c
@@ -660,7 +660,7 @@
 
 	if(dev->flags & IFF_PROMISC)
 		sp->mode = SEEQ_RCMD_RANY;
-	else if ((dev->flags & IFF_ALLMULTI) || dev->mc_count)
+	else if ((dev->flags & IFF_ALLMULTI) || !netdev_mc_empty(dev))
 		sp->mode = SEEQ_RCMD_RBMCAST;
 	else
 		sp->mode = SEEQ_RCMD_RBCAST;