netdevice: safe convert to netdev_priv() #part-2

We have some reasons to kill netdev->priv:
1. netdev->priv is equal to netdev_priv().
2. netdev_priv() wraps the calculation of netdev->priv's offset, obviously
   netdev_priv() is more flexible than netdev->priv.
But we cann't kill netdev->priv, because so many drivers reference to it
directly.

This patch is a safe convert for netdev->priv to netdev_priv(netdev).
Since all of the netdev->priv is only for read.
But it is too big to be sent in one mail.
I split it to 4 parts and make every part smaller than 100,000 bytes,
which is max size allowed by vger.

Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/myri_sbus.c b/drivers/net/myri_sbus.c
index a78d4b9..6833f65 100644
--- a/drivers/net/myri_sbus.c
+++ b/drivers/net/myri_sbus.c
@@ -536,7 +536,7 @@
 static irqreturn_t myri_interrupt(int irq, void *dev_id)
 {
 	struct net_device *dev		= (struct net_device *) dev_id;
-	struct myri_eth *mp		= (struct myri_eth *) dev->priv;
+	struct myri_eth *mp		= netdev_priv(dev);
 	void __iomem *lregs		= mp->lregs;
 	struct myri_channel __iomem *chan = &mp->shmem->channel;
 	unsigned long flags;
@@ -575,14 +575,14 @@
 
 static int myri_open(struct net_device *dev)
 {
-	struct myri_eth *mp = (struct myri_eth *) dev->priv;
+	struct myri_eth *mp = netdev_priv(dev);
 
 	return myri_init(mp, in_interrupt());
 }
 
 static int myri_close(struct net_device *dev)
 {
-	struct myri_eth *mp = (struct myri_eth *) dev->priv;
+	struct myri_eth *mp = netdev_priv(dev);
 
 	myri_clean_rings(mp);
 	return 0;
@@ -590,7 +590,7 @@
 
 static void myri_tx_timeout(struct net_device *dev)
 {
-	struct myri_eth *mp = (struct myri_eth *) dev->priv;
+	struct myri_eth *mp = netdev_priv(dev);
 
 	printk(KERN_ERR "%s: transmit timed out, resetting\n", dev->name);
 
@@ -601,7 +601,7 @@
 
 static int myri_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
-	struct myri_eth *mp = (struct myri_eth *) dev->priv;
+	struct myri_eth *mp = netdev_priv(dev);
 	struct sendq __iomem *sq = mp->sq;
 	struct myri_txd __iomem *txd;
 	unsigned long flags;