netdevice: safe convert to netdev_priv() #part-1

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/arcnet/com90xx.c b/drivers/net/arcnet/com90xx.c
index 0d45553..f4113d265 100644
--- a/drivers/net/arcnet/com90xx.c
+++ b/drivers/net/arcnet/com90xx.c
@@ -468,7 +468,7 @@
 		release_mem_region(shmem, MIRROR_SIZE);
 		return -ENOMEM;
 	}
-	lp = dev->priv;
+	lp = netdev_priv(dev);
 	/* find the real shared memory start/end points, including mirrors */
 
 	/* guess the actual size of one "memory mirror" - the number of
@@ -585,7 +585,7 @@
  */
 int com90xx_reset(struct net_device *dev, int really_reset)
 {
-	struct arcnet_local *lp = dev->priv;
+	struct arcnet_local *lp = netdev_priv(dev);
 	short ioaddr = dev->base_addr;
 
 	BUGMSG(D_INIT, "Resetting (status=%02Xh)\n", ASTATUS());
@@ -621,7 +621,7 @@
 static void com90xx_copy_to_card(struct net_device *dev, int bufnum, int offset,
 				 void *buf, int count)
 {
-	struct arcnet_local *lp = dev->priv;
+	struct arcnet_local *lp = netdev_priv(dev);
 	void __iomem *memaddr = lp->mem_start + bufnum * 512 + offset;
 	TIME("memcpy_toio", count, memcpy_toio(memaddr, buf, count));
 }
@@ -630,7 +630,7 @@
 static void com90xx_copy_from_card(struct net_device *dev, int bufnum, int offset,
 				   void *buf, int count)
 {
-	struct arcnet_local *lp = dev->priv;
+	struct arcnet_local *lp = netdev_priv(dev);
 	void __iomem *memaddr = lp->mem_start + bufnum * 512 + offset;
 	TIME("memcpy_fromio", count, memcpy_fromio(buf, memaddr, count));
 }
@@ -656,7 +656,7 @@
 
 	for (count = 0; count < numcards; count++) {
 		dev = cards[count];
-		lp = dev->priv;
+		lp = netdev_priv(dev);
 
 		unregister_netdev(dev);
 		free_irq(dev->irq, dev);