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Commit 7be6065b authored by Wang Chen's avatar Wang Chen Committed by David S. Miller
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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: default avatarWang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 826dd0e1

drivers/net/wan/cycx_x25.c

+44 −45
Original line number Diff line number Diff line
@@ -199,6 +199,8 @@ static struct net_device *cycx_x25_get_dev_by_lcn(struct wan_device *wandev, 
static struct net_device *

	cycx_x25_get_dev_by_dte_addr(struct wan_device *wandev, char *dte);



static void cycx_x25_chan_setup(struct net_device *dev);



#ifdef CYCLOMX_X25_DEBUG

static void hex_dump(char *msg, unsigned char *p, int len);

static void cycx_x25_dump_config(struct cycx_x25_config *conf);
@@ -353,6 +355,12 @@ static int cycx_wan_update(struct wan_device *wandev) 
	return 0;

}



/* callback to initialize device */

static void cycx_x25_chan_setup(struct net_device *dev)

{

	dev->init = cycx_netdevice_init;

}



/* Create new logical channel.

 * This routine is called by the router when ROUTER_IFNEW IOCTL is being

 * handled.
@@ -376,11 +384,12 @@ static int cycx_wan_new_if(struct wan_device *wandev, struct net_device *dev, 
		return -EINVAL;

	}



	/* allocate and initialize private data */

	chan = kzalloc(sizeof(struct cycx_x25_channel), GFP_KERNEL);

	if (!chan)

	dev = alloc_netdev(sizeof(struct cycx_x25_channel), conf->name,

			     cycx_x25_chan_setup);

	if (!dev)

		return -ENOMEM;



	chan = netdev_priv(dev);

	strcpy(chan->name, conf->name);

	chan->card = card;

	chan->link = conf->port;
@@ -396,14 +405,14 @@ static int cycx_wan_new_if(struct wan_device *wandev, struct net_device *dev, 
			if (len > WAN_ADDRESS_SZ) {

				printk(KERN_ERR "%s: %s local addr too long!\n",

						wandev->name, chan->name);

				kfree(chan);

				return -EINVAL;

				err = -EINVAL;

				goto error;

			} else {

				chan->local_addr = kmalloc(len + 1, GFP_KERNEL);



				if (!chan->local_addr) {

					kfree(chan);

					return -ENOMEM;

					err = -ENOMEM;

					goto error;

				}

			}
@@ -429,32 +438,26 @@ static int cycx_wan_new_if(struct wan_device *wandev, struct net_device *dev, 
				"%s: PVC %u is out of range on interface %s!\n",

				wandev->name, lcn, chan->name);

			err = -EINVAL;

			goto error;

		}

	} else {

		printk(KERN_ERR "%s: invalid media address on interface %s!\n",

				wandev->name, chan->name);

		err = -EINVAL;

		goto error;

	}



	if (err) {

		kfree(chan->local_addr);

		kfree(chan);

		return err;

	}



	/* prepare network device data space for registration */

	strcpy(dev->name, chan->name);

	dev->init = cycx_netdevice_init;

	dev->priv = chan;



	return 0;



error:

	free_netdev(dev);

	return err;

}



/* Delete logical channel. */

static int cycx_wan_del_if(struct wan_device *wandev, struct net_device *dev)

{

	if (dev->priv) {

		struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);



	if (chan->svc) {

		kfree(chan->local_addr);
@@ -462,10 +465,6 @@ static int cycx_wan_del_if(struct wan_device *wandev, struct net_device *dev) 
			del_timer(&chan->timer);

	}



		kfree(chan);

		dev->priv = NULL;

	}



	return 0;

}
@@ -484,7 +483,7 @@ static const struct header_ops cycx_header_ops = { 
 * registration. */

static int cycx_netdevice_init(struct net_device *dev)

{

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);

	struct cycx_device *card = chan->card;

	struct wan_device *wandev = &card->wandev;
@@ -542,7 +541,7 @@ static int cycx_netdevice_open(struct net_device *dev) 
 * o if there's no more open channels then disconnect physical link. */

static int cycx_netdevice_stop(struct net_device *dev)

{

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);



	netif_stop_queue(dev);
@@ -596,7 +595,7 @@ static int cycx_netdevice_rebuild_header(struct sk_buff *skb) 
static int cycx_netdevice_hard_start_xmit(struct sk_buff *skb,

					  struct net_device *dev)

{

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);

	struct cycx_device *card = chan->card;



	if (!chan->svc)
@@ -670,7 +669,7 @@ free_packet: 
 * Return a pointer to struct net_device_stats */

static struct net_device_stats *cycx_netdevice_get_stats(struct net_device *dev)

{

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);



	return chan ? &chan->ifstats : NULL;

}
@@ -783,7 +782,7 @@ static void cycx_x25_irq_rx(struct cycx_device *card, struct cycx_x25_cmd *cmd) 
		return;

	}



	chan = dev->priv;

	chan = netdev_priv(dev);

	reset_timer(dev);



	if (chan->drop_sequence) {
@@ -883,7 +882,7 @@ static void cycx_x25_irq_connect(struct cycx_device *card, 
		return;

	}



	chan = dev->priv;

	chan = netdev_priv(dev);

	chan->lcn = lcn;

	cycx_x25_connect_response(card, chan);

	cycx_x25_set_chan_state(dev, WAN_CONNECTED);
@@ -913,7 +912,7 @@ static void cycx_x25_irq_connect_confirm(struct cycx_device *card, 
	}



	clear_bit(--key, (void*)&card->u.x.connection_keys);

	chan = dev->priv;

	chan = netdev_priv(dev);

	chan->lcn = lcn;

	cycx_x25_set_chan_state(dev, WAN_CONNECTED);

}
@@ -953,7 +952,7 @@ static void cycx_x25_irq_disconnect(struct cycx_device *card, 


	dev = cycx_x25_get_dev_by_lcn(wandev, lcn);

	if (dev) {

		struct cycx_x25_channel *chan = dev->priv;

		struct cycx_x25_channel *chan = netdev_priv(dev);



		cycx_x25_disconnect_response(card, chan->link, lcn);

		cycx_x25_set_chan_state(dev, WAN_DISCONNECTED);
@@ -1301,7 +1300,7 @@ static struct net_device *cycx_x25_get_dev_by_lcn(struct wan_device *wandev, 
	struct cycx_x25_channel *chan;



	while (dev) {

		chan = (struct cycx_x25_channel*)dev->priv;

		chan = netdev_priv(dev);



		if (chan->lcn == lcn)

			break;
@@ -1318,7 +1317,7 @@ static struct net_device * 
	struct cycx_x25_channel *chan;



	while (dev) {

		chan = (struct cycx_x25_channel*)dev->priv;

		chan = netdev_priv(dev);



		if (!strcmp(chan->addr, dte))

			break;
@@ -1336,7 +1335,7 @@ static struct net_device * 
 *		<0	failure */

static int cycx_x25_chan_connect(struct net_device *dev)

{

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);

	struct cycx_device *card = chan->card;



	if (chan->svc) {
@@ -1361,7 +1360,7 @@ static int cycx_x25_chan_connect(struct net_device *dev) 
 * o if SVC then clear X.25 call */

static void cycx_x25_chan_disconnect(struct net_device *dev)

{

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);



	if (chan->svc) {

		x25_clear_call(chan->card, chan->link, chan->lcn, 0, 0);
@@ -1374,7 +1373,7 @@ static void cycx_x25_chan_disconnect(struct net_device *dev) 
static void cycx_x25_chan_timer(unsigned long d)

{

	struct net_device *dev = (struct net_device *)d;

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);



	if (chan->state == WAN_CONNECTED)

		cycx_x25_chan_disconnect(dev);
@@ -1386,7 +1385,7 @@ static void cycx_x25_chan_timer(unsigned long d) 
/* Set logical channel state. */

static void cycx_x25_set_chan_state(struct net_device *dev, u8 state)

{

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);

	struct cycx_device *card = chan->card;

	unsigned long flags;

	char *string_state = NULL;
@@ -1452,7 +1451,7 @@ static void cycx_x25_set_chan_state(struct net_device *dev, u8 state) 
 *    to the router.  */

static int cycx_x25_chan_send(struct net_device *dev, struct sk_buff *skb)

{

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);

	struct cycx_device *card = chan->card;

	int bitm = 0;		/* final packet */

	unsigned len = skb->len;
@@ -1545,7 +1544,7 @@ static unsigned dec_to_uint(u8 *str, int len) 


static void reset_timer(struct net_device *dev)

{

	struct cycx_x25_channel *chan = dev->priv;

	struct cycx_x25_channel *chan = netdev_priv(dev);



	if (chan->svc)

		mod_timer(&chan->timer, jiffies+chan->idle_tmout*HZ);
@@ -1598,7 +1597,7 @@ static void cycx_x25_dump_devs(struct wan_device *wandev) 
	printk(KERN_INFO "---------------------------------------\n");



	while(dev) {

		struct cycx_x25_channel *chan = dev->priv;

		struct cycx_x25_channel *chan = netdev_priv(dev);



		printk(KERN_INFO "%-5.5s %-15.15s   %d     ETH_P_%s\n",

				 chan->name, chan->addr, netif_queue_stopped(dev),

net/wanrouter/wanmain.c

+11 −25
Original line number Diff line number Diff line
@@ -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);