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[DUMMY]: Use rtnl_link API

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Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-06-13 12:04:34 -07:00 committed by David S. Miller
parent 206c9fb26f
commit 5d5cb173d8
1 changed files with 63 additions and 21 deletions
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84
drivers/net/dummy.c
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@ -35,6 +35,7 @@
#include <linux/init.h>
#include <linux/moduleparam.h>
#include <linux/rtnetlink.h>
#include <net/rtnetlink.h>
struct dummy_priv {
struct net_device *dev;
@ -61,12 +62,13 @@ static void set_multicast_list(struct net_device *dev)
{
}
static void __init dummy_setup(struct net_device *dev)
static void dummy_setup(struct net_device *dev)
{
/* Initialize the device structure. */
dev->hard_start_xmit = dummy_xmit;
dev->set_multicast_list = set_multicast_list;
dev->set_mac_address = dummy_set_address;
dev->destructor = free_netdev;
/* Fill in device structure with ethernet-generic values. */
ether_setup(dev);
@ -89,6 +91,37 @@ static int dummy_xmit(struct sk_buff *skb, struct net_device *dev)
static LIST_HEAD(dummies);
static int dummy_newlink(struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[])
{
struct dummy_priv *priv = netdev_priv(dev);
int err;
err = register_netdevice(dev);
if (err < 0)
return err;
priv->dev = dev;
list_add_tail(&priv->list, &dummies);
return 0;
}
static void dummy_dellink(struct net_device *dev)
{
struct dummy_priv *priv = netdev_priv(dev);
list_del(&priv->list);
unregister_netdevice(dev);
}
static struct rtnl_link_ops dummy_link_ops __read_mostly = {
.kind = "dummy",
.priv_size = sizeof(struct dummy_priv),
.setup = dummy_setup,
.newlink = dummy_newlink,
.dellink = dummy_dellink,
};
/* Number of dummy devices to be set up by this module. */
module_param(numdummies, int, 0);
MODULE_PARM_DESC(numdummies, "Number of dummy pseudo devices");
@ -105,38 +138,42 @@ static int __init dummy_init_one(void)
if (!dev_dummy)
return -ENOMEM;
if ((err = register_netdev(dev_dummy))) {
free_netdev(dev_dummy);
dev_dummy = NULL;
} else {
priv = netdev_priv(dev_dummy);
priv->dev = dev_dummy;
list_add_tail(&priv->list, &dummies);
}
err = dev_alloc_name(dev_dummy, dev_dummy->name);
if (err < 0)
goto err;
dev_dummy->rtnl_link_ops = &dummy_link_ops;
err = register_netdevice(dev_dummy);
if (err < 0)
goto err;
priv = netdev_priv(dev_dummy);
priv->dev = dev_dummy;
list_add_tail(&priv->list, &dummies);
return 0;
err:
free_netdev(dev_dummy);
return err;
}
static void dummy_free_one(struct net_device *dev)
{
struct dummy_priv *priv = netdev_priv(dev);
list_del(&priv->list);
unregister_netdev(dev);
free_netdev(dev);
}
static int __init dummy_init_module(void)
{
struct dummy_priv *priv, *next;
int i, err = 0;
rtnl_lock();
err = __rtnl_link_register(&dummy_link_ops);
for (i = 0; i < numdummies && !err; i++)
err = dummy_init_one();
if (err) {
if (err < 0) {
list_for_each_entry_safe(priv, next, &dummies, list)
dummy_free_one(priv->dev);
dummy_dellink(priv->dev);
__rtnl_link_unregister(&dummy_link_ops);
}
rtnl_unlock();
return err;
}
@ -144,10 +181,15 @@ static void __exit dummy_cleanup_module(void)
{
struct dummy_priv *priv, *next;
rtnl_lock();
list_for_each_entry_safe(priv, next, &dummies, list)
dummy_free_one(priv->dev);
dummy_dellink(priv->dev);
__rtnl_link_unregister(&dummy_link_ops);
rtnl_unlock();
}
module_init(dummy_init_module);
module_exit(dummy_cleanup_module);
MODULE_LICENSE("GPL");
MODULE_ALIAS_RTNL_LINK("dummy");