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/bonding/bonding.h b/drivers/net/bonding/bonding.h
index b5eb8e6..921abac 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -257,7 +257,7 @@
 		return NULL;
 	}
 
-	return (struct bonding *)slave->dev->master->priv;
+	return (struct bonding *)netdev_priv(slave->dev->master);
 }
 
 #define BOND_FOM_NONE			0
@@ -287,7 +287,7 @@
 
 static inline void bond_set_slave_inactive_flags(struct slave *slave)
 {
-	struct bonding *bond = slave->dev->master->priv;
+	struct bonding *bond = netdev_priv(slave->dev->master);
 	if (bond->params.mode != BOND_MODE_TLB &&
 	    bond->params.mode != BOND_MODE_ALB)
 		slave->state = BOND_STATE_BACKUP;