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mac80211: revamp virtual interface handling

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This patch revamps the virtual interface handling and makes the
code much easier to follow. Fewer functions, better names, less
spaghetti code.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2008-07-09 14:40:35 +02:00
committed by John W. Linville
parent 3e122be089
commit 75636525fb
8 changed files with 175 additions and 268 deletions
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18
net/mac80211/main.c
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@@ -971,7 +971,6 @@ static const struct header_ops ieee80211_header_ops = {
.cache_update = eth_header_cache_update,
};
/* Must not be called for mdev */
void ieee80211_if_setup(struct net_device *dev)
{
ether_setup(dev);
@@ -981,7 +980,7 @@ void ieee80211_if_setup(struct net_device *dev)
dev->change_mtu = ieee80211_change_mtu;
dev->open = ieee80211_open;
dev->stop = ieee80211_stop;
dev->destructor = ieee80211_if_free;
dev->destructor = free_netdev;
}
/* everything else */
@@ -1776,7 +1775,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
wiphy_name(local->hw.wiphy));
local->reg_state = IEEE80211_DEV_REGISTERED;
rtnl_unlock();
ieee80211_led_init(local);
@@ -1806,30 +1804,20 @@ EXPORT_SYMBOL(ieee80211_register_hw);
void ieee80211_unregister_hw(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata, *tmp;
tasklet_kill(&local->tx_pending_tasklet);
tasklet_kill(&local->tasklet);
rtnl_lock();
BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
local->reg_state = IEEE80211_DEV_UNREGISTERED;
/*
* At this point, interface list manipulations are fine
* because the driver cannot be handing us frames any
* more and the tasklet is killed.
*/
/*
* First, we remove all virtual interfaces.
*/
list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
list_del(&sdata->list);
__ieee80211_if_del(local, sdata);
}
/* First, we remove all virtual interfaces. */
ieee80211_remove_interfaces(local);
/* then, finally, remove the master interface */
unregister_netdevice(local->mdev);