#include <linux/kernel.h>
#include <linux/netdevice.h>
+#include <linux/netpoll.h>
#include <linux/ethtool.h>
#include <linux/if_arp.h>
#include <linux/module.h>
struct net_bridge *br = p->br;
struct net_device *dev = p->dev;
- sysfs_remove_link(br->ifobj, dev->name);
+ sysfs_remove_link(br->ifobj, p->dev->name);
dev_set_promiscuity(dev, -1);
list_del_rcu(&p->list);
- rcu_assign_pointer(dev->br_port, NULL);
+ dev->priv_flags &= ~IFF_BRIDGE_PORT;
+
+ netdev_rx_handler_unregister(dev);
br_multicast_del_port(p);
kobject_uevent(&p->kobj, KOBJ_REMOVE);
kobject_del(&p->kobj);
+ br_netpoll_disable(p);
+
call_rcu(&p->rcu, destroy_nbp_rcu);
}
br = netdev_priv(dev);
br->dev = dev;
+ br->stats = alloc_percpu(struct br_cpu_netstats);
+ if (!br->stats) {
+ free_netdev(dev);
+ return NULL;
+ }
+
spin_lock_init(&br->lock);
INIT_LIST_HEAD(&br->port_list);
spin_lock_init(&br->hash_lock);
return -ELOOP;
/* Device is already being bridged */
- if (dev->br_port != NULL)
+ if (br_port_exists(dev))
return -EBUSY;
/* No bridging devices that dislike that (e.g. wireless) */
if (err)
goto err2;
- rcu_assign_pointer(dev->br_port, p);
+ if (br_netpoll_info(br) && ((err = br_netpoll_enable(p))))
+ goto err3;
+
+ err = netdev_rx_handler_register(dev, br_handle_frame, p);
+ if (err)
+ goto err3;
+
+ dev->priv_flags |= IFF_BRIDGE_PORT;
+
dev_disable_lro(dev);
list_add_rcu(&p->list, &br->port_list);
kobject_uevent(&p->kobj, KOBJ_ADD);
return 0;
+err3:
+ sysfs_remove_link(br->ifobj, p->dev->name);
err2:
br_fdb_delete_by_port(br, p, 1);
err1:
/* called with RTNL */
int br_del_if(struct net_bridge *br, struct net_device *dev)
{
- struct net_bridge_port *p = dev->br_port;
+ struct net_bridge_port *p;
+
+ if (!br_port_exists(dev))
+ return -EINVAL;
- if (!p || p->br != br)
+ p = br_port_get(dev);
+ if (p->br != br)
return -EINVAL;
del_nbp(p);