Commit 64592c8f authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

mac80211: use common work struct 



IBSS, managed and mesh modes all have their
own work struct, and in the future we want
to also use it in other modes to process
frames from the now common skb queue.

This also makes the skb queue and work safe
to use from other interface types.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 35f20c14

net/mac80211/ibss.c

+6 −7
Original line number Diff line number Diff line
@@ -761,7 +761,7 @@ static void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 
static void ieee80211_ibss_work(struct work_struct *work)

{

	struct ieee80211_sub_if_data *sdata =

		container_of(work, struct ieee80211_sub_if_data, u.ibss.work);

		container_of(work, struct ieee80211_sub_if_data, work);

	struct ieee80211_local *local = sdata->local;

	struct ieee80211_if_ibss *ifibss;

	struct sk_buff *skb;
@@ -804,7 +804,7 @@ static void ieee80211_queue_ibss_work(struct ieee80211_sub_if_data *sdata) 
	struct ieee80211_local *local = sdata->local;



	set_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request);

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

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

}



static void ieee80211_ibss_timer(unsigned long data)
@@ -827,7 +827,6 @@ void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata) 
{

	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;



	cancel_work_sync(&ifibss->work);

	if (del_timer_sync(&ifibss->timer))

		ifibss->timer_running = true;

}
@@ -847,7 +846,7 @@ void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata) 
{

	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;



	INIT_WORK(&ifibss->work, ieee80211_ibss_work);

	INIT_WORK(&sdata->work, ieee80211_ibss_work);

	setup_timer(&ifibss->timer, ieee80211_ibss_timer,

		    (unsigned long) sdata);

}
@@ -890,7 +889,7 @@ ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) 
	case IEEE80211_STYPE_PROBE_REQ:

	case IEEE80211_STYPE_AUTH:

		skb_queue_tail(&sdata->skb_queue, skb);

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

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

		return RX_QUEUED;

	}
@@ -956,7 +955,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 
	ieee80211_recalc_idle(sdata->local);



	set_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);

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

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



	return 0;

}
@@ -967,7 +966,7 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata) 


	del_timer_sync(&sdata->u.ibss.timer);

	clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);

	cancel_work_sync(&sdata->u.ibss.work);

	cancel_work_sync(&sdata->work);

	clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);



	sta_info_flush(sdata->local, sdata);

net/mac80211/ieee80211_i.h

+1 −3
Original line number Diff line number Diff line
@@ -325,7 +325,6 @@ struct ieee80211_if_managed { 
	struct timer_list conn_mon_timer;

	struct timer_list bcn_mon_timer;

	struct timer_list chswitch_timer;

	struct work_struct work;

	struct work_struct monitor_work;

	struct work_struct chswitch_work;

	struct work_struct beacon_connection_loss_work;
@@ -384,7 +383,6 @@ enum ieee80211_ibss_request { 


struct ieee80211_if_ibss {

	struct timer_list timer;

	struct work_struct work;



	unsigned long request;

	unsigned long last_scan_completed;
@@ -412,7 +410,6 @@ struct ieee80211_if_ibss { 
};



struct ieee80211_if_mesh {

	struct work_struct work;

	struct timer_list housekeeping_timer;

	struct timer_list mesh_path_timer;

	struct timer_list mesh_path_root_timer;
@@ -512,6 +509,7 @@ struct ieee80211_sub_if_data { 


	u16 sequence_number;



	struct work_struct work;

	struct sk_buff_head skb_queue;



	/*

net/mac80211/iface.c

+2 −4
Original line number Diff line number Diff line
@@ -460,17 +460,14 @@ static int ieee80211_stop(struct net_device *dev) 
		 * whether the interface is running, which, at this point,

		 * it no longer is.

		 */

		cancel_work_sync(&sdata->u.mgd.work);

		cancel_work_sync(&sdata->u.mgd.chswitch_work);

		cancel_work_sync(&sdata->u.mgd.monitor_work);

		cancel_work_sync(&sdata->u.mgd.beacon_connection_loss_work);



		/* fall through */

	case NL80211_IFTYPE_ADHOC:

		if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {

		if (sdata->vif.type == NL80211_IFTYPE_ADHOC)

			del_timer_sync(&sdata->u.ibss.timer);

			cancel_work_sync(&sdata->u.ibss.work);

		}

		/* fall through */

	case NL80211_IFTYPE_MESH_POINT:

		if (ieee80211_vif_is_mesh(&sdata->vif)) {
@@ -485,6 +482,7 @@ static int ieee80211_stop(struct net_device *dev) 
		}

		/* fall through */

	default:

		cancel_work_sync(&sdata->work);

		/*

		 * When we get here, the interface is marked down.

		 * Call synchronize_rcu() to wait for the RX path

net/mac80211/mesh.c

+9 −13
Original line number Diff line number Diff line
@@ -54,7 +54,7 @@ static void ieee80211_mesh_housekeeping_timer(unsigned long data) 
		return;

	}



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

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

}



/**
@@ -345,7 +345,7 @@ static void ieee80211_mesh_path_timer(unsigned long data) 
		return;

	}



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

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

}



static void ieee80211_mesh_path_root_timer(unsigned long data)
@@ -362,7 +362,7 @@ static void ieee80211_mesh_path_root_timer(unsigned long data) 
		return;

	}



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

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

}



void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh)
@@ -484,9 +484,6 @@ void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata) 
{

	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;



	/* might restart the timer but that doesn't matter */

	cancel_work_sync(&ifmsh->work);



	/* use atomic bitops in case both timers fire at the same time */



	if (del_timer_sync(&ifmsh->housekeeping_timer))
@@ -518,7 +515,7 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata) 


	set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags);

	ieee80211_mesh_root_setup(ifmsh);

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

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

	sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL;

	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON |

						BSS_CHANGED_BEACON_ENABLED |
@@ -536,7 +533,7 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata) 
	 * whether the interface is running, which, at this point,

	 * it no longer is.

	 */

	cancel_work_sync(&sdata->u.mesh.work);

	cancel_work_sync(&sdata->work);

}



static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
@@ -630,7 +627,7 @@ static void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 
static void ieee80211_mesh_work(struct work_struct *work)

{

	struct ieee80211_sub_if_data *sdata =

		container_of(work, struct ieee80211_sub_if_data, u.mesh.work);

		container_of(work, struct ieee80211_sub_if_data, work);

	struct ieee80211_local *local = sdata->local;

	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;

	struct sk_buff *skb;
@@ -669,7 +666,7 @@ void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) 
	rcu_read_lock();

	list_for_each_entry_rcu(sdata, &local->interfaces, list)

		if (ieee80211_vif_is_mesh(&sdata->vif))

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

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

	rcu_read_unlock();

}
@@ -677,7 +674,7 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata) 
{

	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;



	INIT_WORK(&ifmsh->work, ieee80211_mesh_work);

	INIT_WORK(&sdata->work, ieee80211_mesh_work);

	setup_timer(&ifmsh->housekeeping_timer,

		    ieee80211_mesh_housekeeping_timer,

		    (unsigned long) sdata);
@@ -726,7 +723,6 @@ ieee80211_rx_result 
ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)

{

	struct ieee80211_local *local = sdata->local;

	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;

	struct ieee80211_mgmt *mgmt;

	u16 fc;
@@ -741,7 +737,7 @@ ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) 
	case IEEE80211_STYPE_PROBE_RESP:

	case IEEE80211_STYPE_BEACON:

		skb_queue_tail(&sdata->skb_queue, skb);

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

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

		return RX_QUEUED;

	}

net/mac80211/mesh_hwmp.c

+2 −2
Original line number Diff line number Diff line
@@ -805,14 +805,14 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags) 
	spin_unlock(&ifmsh->mesh_preq_queue_lock);



	if (time_after(jiffies, ifmsh->last_preq + min_preq_int_jiff(sdata)))

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

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



	else if (time_before(jiffies, ifmsh->last_preq)) {

		/* avoid long wait if did not send preqs for a long time

		 * and jiffies wrapped around

		 */

		ifmsh->last_preq = jiffies - min_preq_int_jiff(sdata) - 1;

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

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

	} else

		mod_timer(&ifmsh->mesh_path_timer, ifmsh->last_preq +

						min_preq_int_jiff(sdata));

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