From 7be6065b39c3f1cfa796667eac1a2170465acc91 Mon Sep 17 00:00:00 2001 From: Wang Chen Date: Thu, 20 Nov 2008 04:26:21 -0800 Subject: netdevice wanrouter: Convert directly reference of netdev->priv 1. Make device driver to allocate memory for netdev. 2. Convert all directly reference of netdev->priv to netdev_priv(). Signed-off-by: Wang Chen Signed-off-by: David S. Miller --- net/wanrouter/wanmain.c | 36 +++++++++++------------------------- 1 file changed, 11 insertions(+), 25 deletions(-) (limited to 'net/wanrouter') diff --git a/net/wanrouter/wanmain.c b/net/wanrouter/wanmain.c index 7f07152bc109..39701dec1dba 100644 --- a/net/wanrouter/wanmain.c +++ b/net/wanrouter/wanmain.c @@ -60,6 +60,8 @@ #define KMEM_SAFETYZONE 8 +#define DEV_TO_SLAVE(dev) (*((struct net_device **)netdev_priv(dev))) + /* * Function Prototypes */ @@ -511,7 +513,7 @@ static int wanrouter_device_shutdown(struct wan_device *wandev) if (err) return err; /* The above function deallocates the current dev - * structure. Therefore, we cannot use dev->priv + * structure. Therefore, we cannot use netdev_priv(dev) * as the next element: wandev->dev points to the * next element */ dev = wandev->dev; @@ -589,10 +591,6 @@ static int wanrouter_device_new_if(struct wan_device *wandev, err = -EPROTONOSUPPORT; goto out; } else { - dev = kzalloc(sizeof(struct net_device), GFP_KERNEL); - err = -ENOBUFS; - if (dev == NULL) - goto out; err = wandev->new_if(wandev, dev, cnf); } @@ -622,10 +620,9 @@ static int wanrouter_device_new_if(struct wan_device *wandev, wandev->dev = dev; } else { for (slave=wandev->dev; - *((struct net_device **)slave->priv); - slave = *((struct net_device **)slave->priv)); - - *((struct net_device **)slave->priv) = dev; + DEV_TO_SLAVE(slave); + slave = DEV_TO_SLAVE(slave)) + DEV_TO_SLAVE(slave) = dev; } ++wandev->ndev; @@ -636,15 +633,9 @@ static int wanrouter_device_new_if(struct wan_device *wandev, } if (wandev->del_if) wandev->del_if(wandev, dev); + free_netdev(dev); } - /* This code has moved from del_if() function */ - kfree(dev->priv); - dev->priv = NULL; - - /* Sync PPP is disabled */ - if (cnf->config_id != WANCONFIG_MPPP) - kfree(dev); out: kfree(cnf); return err; @@ -734,7 +725,7 @@ static int wanrouter_delete_interface(struct wan_device *wandev, char *name) dev = wandev->dev; prev = NULL; while (dev && strcmp(name, dev->name)) { - struct net_device **slave = dev->priv; + struct net_device **slave = netdev_priv(dev); prev = dev; dev = *slave; } @@ -751,12 +742,12 @@ static int wanrouter_delete_interface(struct wan_device *wandev, char *name) lock_adapter_irq(&wandev->lock, &smp_flags); if (prev) { - struct net_device **prev_slave = prev->priv; - struct net_device **slave = dev->priv; + struct net_device **prev_slave = netdev_priv(prev); + struct net_device **slave = netdev_priv(dev); *prev_slave = *slave; } else { - struct net_device **slave = dev->priv; + struct net_device **slave = netdev_priv(dev); wandev->dev = *slave; } --wandev->ndev; @@ -764,11 +755,6 @@ static int wanrouter_delete_interface(struct wan_device *wandev, char *name) printk(KERN_INFO "%s: unregistering '%s'\n", wandev->name, dev->name); - /* Due to new interface linking method using dev->priv, - * this code has moved from del_if() function.*/ - kfree(dev->priv); - dev->priv=NULL; - unregister_netdev(dev); free_netdev(dev); -- cgit v1.2.3