netdev: Add addr_list_lock to struct net_device.
This will be used to protect the per-device unicast and multicast address lists, as well as the callbacks into the drivers which configure such state such as ->set_rx_mode() and ->set_multicast_list(). Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -609,6 +609,7 @@ struct net_device
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unsigned char addr_len; /* hardware address length */
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unsigned short dev_id; /* for shared network cards */
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spinlock_t addr_list_lock;
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struct dev_addr_list *uc_list; /* Secondary unicast mac addresses */
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int uc_count; /* Number of installed ucasts */
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int uc_promisc;
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@ -3836,6 +3836,7 @@ int register_netdevice(struct net_device *dev)
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BUG_ON(!dev_net(dev));
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net = dev_net(dev);
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spin_lock_init(&dev->addr_list_lock);
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netdev_init_queue_locks(dev);
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dev->iflink = -1;
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