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/3c59x.c b/drivers/net/3c59x.c
index 3893f50..665e7fd 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -803,7 +803,7 @@
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 
-	if (dev && dev->priv) {
+	if (dev && netdev_priv(dev)) {
 		if (netif_running(dev)) {
 			netif_device_detach(dev);
 			vortex_down(dev, 1);
@@ -3214,7 +3214,7 @@
 #endif
 
 	if (compaq_net_device) {
-		vp = compaq_net_device->priv;
+		vp = netdev_priv(compaq_net_device);
 		ioaddr = ioport_map(compaq_net_device->base_addr,
 		                    VORTEX_TOTAL_SIZE);