netdev: add more functions to netdevice ops

This patch moves neigh_setup and hard_start_xmit into the network device ops
structure. For bisection, fix all the previously converted drivers as well.
Bonding driver took the biggest hit on this.

Added a prefetch of the hard_start_xmit in the fast path to try and reduce
any impact this would have.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index ee3a8dd..727c5c5 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -373,7 +373,7 @@
 	if (dev->flags & IFF_LOOPBACK || dev->type != ARPHRD_ETHER)
 		return -EINVAL;
 
-	if (dev->hard_start_xmit == br_dev_xmit)
+	if (dev->netdev_ops->ndo_start_xmit == br_dev_xmit)
 		return -ELOOP;
 
 	if (dev->br_port != NULL)