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mac80211: add explicit AP/GO driver operations

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Depending on the driver, a lot of setup may be
necessary to start operating as an AP, some of
which may fail. Add an explicit AP start driver
method to make such failures easier to handle,
and add an AP stop driver method for symmetry.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2012-10-19 15:44:42 +02:00
parent 7b20b8e8d7
commit 1041638f2b
6 changed files with 92 additions and 1 deletions
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11
net/mac80211/cfg.c
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@@ -922,6 +922,15 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
return err;
changed |= err;
err = drv_start_ap(sdata->local, sdata);
if (err) {
old = rtnl_dereference(sdata->u.ap.beacon);
if (old)
kfree_rcu(old, rcu_head);
RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
return err;
}
ieee80211_bss_info_change_notify(sdata, changed);
netif_carrier_on(dev);
@@ -979,6 +988,8 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
sta_info_flush(local, sdata);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
drv_stop_ap(sdata->local, sdata);
/* free all potentially still buffered bcast frames */
local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
skb_queue_purge(&sdata->u.ap.ps.bc_buf);