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/usb/rtl8150.c b/drivers/net/usb/rtl8150.c
index 21ac103..e85c89c 100644
--- a/drivers/net/usb/rtl8150.c
+++ b/drivers/net/usb/rtl8150.c
@@ -711,7 +711,7 @@
 	if (netdev->flags & IFF_PROMISC) {
 		dev->rx_creg |= cpu_to_le16(0x0001);
 		dev_info(&netdev->dev, "%s: promiscuous mode\n", netdev->name);
-	} else if (netdev->mc_count ||
+	} else if (!netdev_mc_empty(netdev) ||
 		   (netdev->flags & IFF_ALLMULTI)) {
 		dev->rx_creg &= cpu_to_le16(0xfffe);
 		dev->rx_creg |= cpu_to_le16(0x0002);