diff options
Diffstat (limited to 'net/mac80211/sta_info.c')
-rw-r--r-- | net/mac80211/sta_info.c | 65 |
1 files changed, 40 insertions, 25 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index a9b46d8..ae7c16a 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -100,7 +100,8 @@ static void __cleanup_single_sta(struct sta_info *sta) struct ps_data *ps; if (test_sta_flag(sta, WLAN_STA_PS_STA) || - test_sta_flag(sta, WLAN_STA_PS_DRIVER)) { + test_sta_flag(sta, WLAN_STA_PS_DRIVER) || + test_sta_flag(sta, WLAN_STA_PS_DELIVER)) { if (sta->sdata->vif.type == NL80211_IFTYPE_AP || sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) ps = &sdata->bss->ps; @@ -111,6 +112,7 @@ static void __cleanup_single_sta(struct sta_info *sta) clear_sta_flag(sta, WLAN_STA_PS_STA); clear_sta_flag(sta, WLAN_STA_PS_DRIVER); + clear_sta_flag(sta, WLAN_STA_PS_DELIVER); atomic_dec(&ps->num_sta_ps); sta_info_recalc_tim(sta); @@ -125,7 +127,7 @@ static void __cleanup_single_sta(struct sta_info *sta) if (ieee80211_vif_is_mesh(&sdata->vif)) mesh_sta_cleanup(sta); - cancel_work_sync(&sta->drv_unblock_wk); + cancel_work_sync(&sta->drv_deliver_wk); /* * Destroy aggregation state here. It would be nice to wait for the @@ -253,33 +255,23 @@ static void sta_info_hash_add(struct ieee80211_local *local, rcu_assign_pointer(local->sta_hash[STA_HASH(sta->sta.addr)], sta); } -static void sta_unblock(struct work_struct *wk) +static void sta_deliver_ps_frames(struct work_struct *wk) { struct sta_info *sta; - sta = container_of(wk, struct sta_info, drv_unblock_wk); + sta = container_of(wk, struct sta_info, drv_deliver_wk); if (sta->dead) return; - if (!test_sta_flag(sta, WLAN_STA_PS_STA)) { - local_bh_disable(); + local_bh_disable(); + if (!test_sta_flag(sta, WLAN_STA_PS_STA)) ieee80211_sta_ps_deliver_wakeup(sta); - local_bh_enable(); - } else if (test_and_clear_sta_flag(sta, WLAN_STA_PSPOLL)) { - clear_sta_flag(sta, WLAN_STA_PS_DRIVER); - - local_bh_disable(); + else if (test_and_clear_sta_flag(sta, WLAN_STA_PSPOLL)) ieee80211_sta_ps_deliver_poll_response(sta); - local_bh_enable(); - } else if (test_and_clear_sta_flag(sta, WLAN_STA_UAPSD)) { - clear_sta_flag(sta, WLAN_STA_PS_DRIVER); - - local_bh_disable(); + else if (test_and_clear_sta_flag(sta, WLAN_STA_UAPSD)) ieee80211_sta_ps_deliver_uapsd(sta); - local_bh_enable(); - } else - clear_sta_flag(sta, WLAN_STA_PS_DRIVER); + local_bh_enable(); } static int sta_prepare_rate_control(struct ieee80211_local *local, @@ -341,7 +333,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, spin_lock_init(&sta->lock); spin_lock_init(&sta->ps_lock); - INIT_WORK(&sta->drv_unblock_wk, sta_unblock); + INIT_WORK(&sta->drv_deliver_wk, sta_deliver_ps_frames); INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work); mutex_init(&sta->ampdu_mlme.mtx); #ifdef CONFIG_MAC80211_MESH @@ -1141,8 +1133,15 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) } ieee80211_add_pending_skbs(local, &pending); - clear_sta_flag(sta, WLAN_STA_PS_DRIVER); - clear_sta_flag(sta, WLAN_STA_PS_STA); + + /* now we're no longer in the deliver code */ + clear_sta_flag(sta, WLAN_STA_PS_DELIVER); + + /* The station might have polled and then woken up before we responded, + * so clear these flags now to avoid them sticking around. + */ + clear_sta_flag(sta, WLAN_STA_PSPOLL); + clear_sta_flag(sta, WLAN_STA_UAPSD); spin_unlock(&sta->ps_lock); atomic_dec(&ps->num_sta_ps); @@ -1543,10 +1542,26 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw, trace_api_sta_block_awake(sta->local, pubsta, block); - if (block) + if (block) { set_sta_flag(sta, WLAN_STA_PS_DRIVER); - else if (test_sta_flag(sta, WLAN_STA_PS_DRIVER)) - ieee80211_queue_work(hw, &sta->drv_unblock_wk); + return; + } + + if (!test_sta_flag(sta, WLAN_STA_PS_DRIVER)) + return; + + if (!test_sta_flag(sta, WLAN_STA_PS_STA)) { + set_sta_flag(sta, WLAN_STA_PS_DELIVER); + clear_sta_flag(sta, WLAN_STA_PS_DRIVER); + ieee80211_queue_work(hw, &sta->drv_deliver_wk); + } else if (test_sta_flag(sta, WLAN_STA_PSPOLL) || + test_sta_flag(sta, WLAN_STA_UAPSD)) { + /* must be asleep in this case */ + clear_sta_flag(sta, WLAN_STA_PS_DRIVER); + ieee80211_queue_work(hw, &sta->drv_deliver_wk); + } else { + clear_sta_flag(sta, WLAN_STA_PS_DRIVER); + } } EXPORT_SYMBOL(ieee80211_sta_block_awake); |