[PATCH] dev->priv to netdev_priv(dev), for drivers/net/wireless

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.

Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: mcgrof@gmail.com
Cc: linux-wireless@vger.kernel.org
Cc: akpm@linux-foundation.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index 585f5996d292..f1066614dc31 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -1753,7 +1753,7 @@ prism54_get_oid(struct net_device *ndev, struct iw_request_info *info,
         int rvalue;
         enum oid_num_t n = dwrq->flags;
 
-        rvalue = mgt_get_request((islpci_private *) ndev->priv, n, 0, NULL, &r);
+        rvalue = mgt_get_request(netdev_priv(ndev), n, 0, NULL, &r);
         dwrq->length = mgt_response_to_str(n, &r, extra);
         if ((isl_oid[n].flags & OID_FLAG_TYPE) != OID_TYPE_U32)
                 kfree(r.ptr);
@@ -1766,7 +1766,7 @@ prism54_set_u32(struct net_device *ndev, struct iw_request_info *info,
 {
         u32 oid = uwrq[0], u = uwrq[1];
 
-        return mgt_set_request((islpci_private *) ndev->priv, oid, 0, &u);
+        return mgt_set_request(netdev_priv(ndev), oid, 0, &u);
 }
 
 static int
@@ -1775,7 +1775,7 @@ prism54_set_raw(struct net_device *ndev, struct iw_request_info *info,
 {
         u32 oid = dwrq->flags;
 
-        return mgt_set_request((islpci_private *) ndev->priv, oid, 0, extra);
+        return mgt_set_request(netdev_priv(ndev), oid, 0, extra);
 }
 
 void