[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, 7 insertions, 7 deletions

diff --git a/drivers/net/wireless/arlan-proc.c b/drivers/net/wireless/arlan-proc.c
index 015abd928ab0..c6e70dbc5de8 100644
--- a/drivers/net/wireless/arlan-proc.c
+++ b/drivers/net/wireless/arlan-proc.c
@@ -435,7 +435,7 @@ static int arlan_sysctl_info(ctl_table * ctl, int write, struct file *filp,
                 goto final;
         }
         else
-                priva = arlan_device[devnum]->priv;
+                priva = netdev_priv(arlan_device[devnum]);
 
         if (priva == NULL)
         {
@@ -654,7 +654,7 @@ static int arlan_sysctl_info161719(ctl_table * ctl, int write, struct file *filp
                 goto final;
         }
         else
-                priva = arlan_device[devnum]->priv;
+                priva = netdev_priv(arlan_device[devnum]);
         if (priva == NULL)
         {
                 printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
@@ -688,7 +688,7 @@ static int arlan_sysctl_infotxRing(ctl_table * ctl, int write, struct file *filp
                   goto final;
         }
         else
-                priva = arlan_device[devnum]->priv;
+                priva = netdev_priv(arlan_device[devnum]);
         if (priva == NULL)
         {
                 printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
@@ -716,7 +716,7 @@ static int arlan_sysctl_inforxRing(ctl_table * ctl, int write, struct file *filp
                   pos += sprintf(arlan_drive_info + pos, "No device found here \n");
                   goto final;
         } else
-                priva = arlan_device[devnum]->priv;
+                priva = netdev_priv(arlan_device[devnum]);
         if (priva == NULL)
         {
                 printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
@@ -745,7 +745,7 @@ static int arlan_sysctl_info18(ctl_table * ctl, int write, struct file *filp,
                 goto final;
         }
         else
-                priva = arlan_device[devnum]->priv;
+                priva = netdev_priv(arlan_device[devnum]);
         if (priva == NULL)
         {
                 printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
@@ -780,7 +780,7 @@ static int arlan_configure(ctl_table * ctl, int write, struct file *filp,
         }
         else if (arlan_device[devnum] != NULL)
         {
-                  priv = arlan_device[devnum]->priv;
+                  priv = netdev_priv(arlan_device[devnum]);
 
                   arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_CONF);
         }
@@ -805,7 +805,7 @@ static int arlan_sysctl_reset(ctl_table * ctl, int write, struct file *filp,
         }
         else if (arlan_device[devnum] != NULL)
         {
-                priv = arlan_device[devnum]->priv;
+                priv = netdev_priv(arlan_device[devnum]);
                 arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_RESET);
 
         } else