intel: convert drivers to netdev_tx_t

Get rid of some bogus return wrapping as well.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 569df19..6a31760 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -1690,7 +1690,8 @@
 	cb->u.tcb.tbd.size = cpu_to_le16(skb->len);
 }
 
-static int e100_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t e100_xmit_frame(struct sk_buff *skb,
+				   struct net_device *netdev)
 {
 	struct nic *nic = netdev_priv(netdev);
 	int err;