dev->priv to netdev_priv(dev), drivers/net/tokenring/

Replacing accesses to dev->priv to netdev_priv(dev). The replacment
is safe when netdev_priv is used to access a private structure that is
right next to the net_device structure in memory.
Cf http://groups.google.com/group/comp.os.linux.development.system/browse_thread/thread/de19321bcd94dbb8/0d74a4adcd6177bd
This is the case when the net_device structure was allocated with
a call to alloc_netdev or one of its derivative.

Here is an excerpt of the semantic patch that performs the transformation

@ rule1 @
type T;
struct net_device *dev;
@@

 dev =
(
        alloc_netdev
|
        alloc_etherdev
|
        alloc_trdev
)
   (sizeof(T), ...)

@ rule1bis @
struct net_device *dev;
expression E;
@@
 dev->priv = E

@ rule2 depends on rule1 && !rule1bis  @
struct net_device *dev;
type rule1.T;
@@

- (T*) dev->priv
+ netdev_priv(dev)

PS: I have performed the same transformation on the whole kernel
and it affects around 70 files, most of them in drivers/net/.
Should I split my patch for each subnet directories ? (wireless/, wan/, etc)

Thanks to Thomas Surrel for helping me refining my semantic patch.

Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>

 3c359.c       |   58 +++++++++++++++++++++++++++++-----------------------------
 ibmtr.c       |   38 +++++++++++++++++++-------------------
 lanstreamer.c |   32 ++++++++++++++++----------------
 madgemc.c     |    4 ++--
 olympic.c     |   36 ++++++++++++++++++------------------
 tmspci.c      |    4 ++--
 6 files changed, 86 insertions(+), 86 deletions(-)
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/tokenring/tmspci.c b/drivers/net/tokenring/tmspci.c
index 3b2f00b9b7bd..aec75c930c21 100644
--- a/drivers/net/tokenring/tmspci.c
+++ b/drivers/net/tokenring/tmspci.c
@@ -149,7 +149,7 @@ static int __devinit tms_pci_attach(struct pci_dev *pdev, const struct pci_devic
 		goto err_out_irq;
 	}
 
-	tp = dev->priv;
+	tp = netdev_priv(dev);
 	tp->setnselout = tms_pci_setnselout_pins;
 		
 	tp->sifreadb = tms_pci_sifreadb;
@@ -210,7 +210,7 @@ static void tms_pci_read_eeprom(struct net_device *dev)
 static unsigned short tms_pci_setnselout_pins(struct net_device *dev)
 {
 	unsigned short val = 0;
-	struct net_local *tp = dev->priv;
+	struct net_local *tp = netdev_priv(dev);
 	struct card_info *cardinfo = tp->tmspriv;
   
 	if(tp->DataRate == SPEED_4)