rtnl: allow to specify different num for rx and tx queue count

Also cut out unused function parameters and possible err in return
value.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index bbcfd09..6b00c4f 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -44,8 +44,10 @@
  *	@get_xstats_size: Function to calculate required room for dumping device
  *			  specific statistics
  *	@fill_xstats: Function to dump device specific statistics
- *	@get_tx_queues: Function to determine number of transmit queues to create when
- *		        creating a new device.
+ *	@get_num_tx_queues: Function to determine number of transmit queues
+ *			    to create when creating a new device.
+ *	@get_num_rx_queues: Function to determine number of receive queues
+ *			    to create when creating a new device.
  */
 struct rtnl_link_ops {
 	struct list_head	list;
@@ -77,8 +79,8 @@
 	size_t			(*get_xstats_size)(const struct net_device *dev);
 	int			(*fill_xstats)(struct sk_buff *skb,
 					       const struct net_device *dev);
-	int			(*get_tx_queues)(struct net *net,
-						 struct nlattr *tb[]);
+	unsigned int		(*get_num_tx_queues)(void);
+	unsigned int		(*get_num_rx_queues)(void);
 };
 
 extern int	__rtnl_link_register(struct rtnl_link_ops *ops);