Commit bed7ee6e authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

mac80211: always process blockack action from workqueue 



To prepare for making the ampdu_action callback
sleep, make mac80211 always process blockack
action frames from the skb queue. This gets rid
of the current special case for managed mode
interfaces as well.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 77a121c3

net/mac80211/iface.c

+30 −1
Original line number Diff line number Diff line
@@ -724,7 +724,36 @@ static void ieee80211_iface_work(struct work_struct *work) 


	/* first process frames */

	while ((skb = skb_dequeue(&sdata->skb_queue))) {

		switch (sdata->vif.type) {

		struct ieee80211_mgmt *mgmt = (void *)skb->data;



		if (ieee80211_is_action(mgmt->frame_control) &&

		    mgmt->u.action.category == WLAN_CATEGORY_BACK) {

			int len = skb->len;

			struct sta_info *sta;



			rcu_read_lock();

			sta = sta_info_get(sdata, mgmt->sa);

			if (sta) {

				switch (mgmt->u.action.u.addba_req.action_code) {

				case WLAN_ACTION_ADDBA_REQ:

					ieee80211_process_addba_request(

							local, sta, mgmt, len);

					break;

				case WLAN_ACTION_ADDBA_RESP:

					ieee80211_process_addba_resp(local, sta,

								     mgmt, len);

					break;

				case WLAN_ACTION_DELBA:

					ieee80211_process_delba(sdata, sta,

								mgmt, len);

					break;

				default:

					WARN_ON(1);

					break;

				}

			}

			rcu_read_unlock();

		} else switch (sdata->vif.type) {

		case NL80211_IFTYPE_STATION:

			ieee80211_sta_rx_queued_mgmt(sdata, skb);

			break;

net/mac80211/mlme.c

+0 −38
Original line number Diff line number Diff line
@@ -1666,44 +1666,6 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 
			break;

		case IEEE80211_STYPE_ACTION:

			switch (mgmt->u.action.category) {

			case WLAN_CATEGORY_BACK: {

				struct ieee80211_local *local = sdata->local;

				int len = skb->len;

				struct sta_info *sta;



				rcu_read_lock();

				sta = sta_info_get(sdata, mgmt->sa);

				if (!sta) {

					rcu_read_unlock();

					break;

				}



				local_bh_disable();



				switch (mgmt->u.action.u.addba_req.action_code) {

				case WLAN_ACTION_ADDBA_REQ:

					if (len < (IEEE80211_MIN_ACTION_SIZE +

						   sizeof(mgmt->u.action.u.addba_req)))

						break;

					ieee80211_process_addba_request(local, sta, mgmt, len);

					break;

				case WLAN_ACTION_ADDBA_RESP:

					if (len < (IEEE80211_MIN_ACTION_SIZE +

						   sizeof(mgmt->u.action.u.addba_resp)))

						break;

					ieee80211_process_addba_resp(local, sta, mgmt, len);

					break;

				case WLAN_ACTION_DELBA:

					if (len < (IEEE80211_MIN_ACTION_SIZE +

						   sizeof(mgmt->u.action.u.delba)))

						break;

					ieee80211_process_delba(sdata, sta, mgmt, len);

					break;

				}

				local_bh_enable();

				rcu_read_unlock();

				break;

				}

			case WLAN_CATEGORY_SPECTRUM_MGMT:

				ieee80211_sta_process_chanswitch(sdata,

						&mgmt->u.action.u.chan_switch.sw_elem,

net/mac80211/rx.c

+13 −16
Original line number Diff line number Diff line
@@ -1950,33 +1950,29 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) 
		if (len < IEEE80211_MIN_ACTION_SIZE + 1)

			break;



		if (sdata->vif.type == NL80211_IFTYPE_STATION) {

			skb_queue_tail(&sdata->skb_queue, rx->skb);

			ieee80211_queue_work(&local->hw, &sdata->work);

			return RX_QUEUED;

		}



		switch (mgmt->u.action.u.addba_req.action_code) {

		case WLAN_ACTION_ADDBA_REQ:

			if (len < (IEEE80211_MIN_ACTION_SIZE +

				   sizeof(mgmt->u.action.u.addba_req)))

				return RX_DROP_MONITOR;

			ieee80211_process_addba_request(local, rx->sta, mgmt, len);

			goto handled;

				goto invalid;

			break;

		case WLAN_ACTION_ADDBA_RESP:

			if (len < (IEEE80211_MIN_ACTION_SIZE +

				   sizeof(mgmt->u.action.u.addba_resp)))

				goto invalid;

			break;

			ieee80211_process_addba_resp(local, rx->sta, mgmt, len);

			goto handled;

		case WLAN_ACTION_DELBA:

			if (len < (IEEE80211_MIN_ACTION_SIZE +

				   sizeof(mgmt->u.action.u.delba)))

				goto invalid;

			break;

			ieee80211_process_delba(sdata, rx->sta, mgmt, len);

			goto handled;

		default:

			goto invalid;

		}

		break;



		skb_queue_tail(&sdata->skb_queue, rx->skb);

		ieee80211_queue_work(&local->hw, &sdata->work);

		return RX_QUEUED;

	case WLAN_CATEGORY_SPECTRUM_MGMT:

		if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ)

			break;
@@ -2033,6 +2029,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) 
		return RX_QUEUED;

	}



 invalid:

	/*

	 * For AP mode, hostapd is responsible for handling any action

	 * frames that we didn't handle, including returning unknown

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