diff options
Diffstat (limited to 'net/mac80211/sta_info.c')
-rw-r--r-- | net/mac80211/sta_info.c | 48 |
1 files changed, 21 insertions, 27 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index ca9fde1..9d864ed 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -104,6 +104,16 @@ static void cleanup_single_sta(struct sta_info *sta) * neither mac80211 nor the driver can reference this * sta struct any more except by still existing timers * associated with this station that we clean up below. + * + * Note though that this still uses the sdata and even + * calls the driver in AP and mesh mode, so interfaces + * of those types mush use call sta_info_flush_cleanup() + * (typically via sta_info_flush()) before deconfiguring + * the driver. + * + * In station mode, nothing happens here so it doesn't + * have to (and doesn't) do that, this is intentional to + * speed up roaming. */ if (test_sta_flag(sta, WLAN_STA_PS_STA)) { @@ -774,7 +784,7 @@ int __must_check __sta_info_destroy(struct sta_info *sta) * will be sufficient. */ set_sta_flag(sta, WLAN_STA_BLOCK_BA); - ieee80211_sta_tear_down_BA_sessions(sta, false); + ieee80211_sta_tear_down_BA_sessions(sta, AGG_STOP_DESTROY_STA); ret = sta_info_hash_del(local, sta); if (ret) @@ -885,20 +895,12 @@ void sta_info_init(struct ieee80211_local *local) void sta_info_stop(struct ieee80211_local *local) { del_timer_sync(&local->sta_cleanup); - sta_info_flush(local, NULL); } -/** - * sta_info_flush - flush matching STA entries from the STA table - * - * Returns the number of removed STA entries. - * - * @local: local interface data - * @sdata: matching rule for the net device (sta->dev) or %NULL to match all STAs - */ -int sta_info_flush(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata) + +int sta_info_flush_defer(struct ieee80211_sub_if_data *sdata) { + struct ieee80211_local *local = sdata->local; struct sta_info *sta, *tmp; int ret = 0; @@ -906,30 +908,22 @@ int sta_info_flush(struct ieee80211_local *local, mutex_lock(&local->sta_mtx); list_for_each_entry_safe(sta, tmp, &local->sta_list, list) { - if (!sdata || sdata == sta->sdata) { + if (sdata == sta->sdata) { WARN_ON(__sta_info_destroy(sta)); ret++; } } mutex_unlock(&local->sta_mtx); - rcu_barrier(); - - if (sdata) { - ieee80211_cleanup_sdata_stas(sdata); - cancel_work_sync(&sdata->cleanup_stations_wk); - } else { - mutex_lock(&local->iflist_mtx); - list_for_each_entry(sdata, &local->interfaces, list) { - ieee80211_cleanup_sdata_stas(sdata); - cancel_work_sync(&sdata->cleanup_stations_wk); - } - mutex_unlock(&local->iflist_mtx); - } - return ret; } +void sta_info_flush_cleanup(struct ieee80211_sub_if_data *sdata) +{ + ieee80211_cleanup_sdata_stas(sdata); + cancel_work_sync(&sdata->cleanup_stations_wk); +} + void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, unsigned long exp_time) { |