16 	if (link->sdata->vif.type == NL80211_IFTYPE_STATION)  in ieee80211_link_setup()
20 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,  in ieee80211_link_init()  argument
30 	rcu_assign_pointer(sdata->vif.link_conf[link_id], link_conf);  in ieee80211_link_init()
31 	rcu_assign_pointer(sdata->link[link_id], link);  in ieee80211_link_init()
33 	link->sdata = sdata;  in ieee80211_link_init()
48 		switch (sdata->vif.type) {  in ieee80211_link_init()
51 					sdata->wdev.links[link_id].addr);  in ieee80211_link_init()
53 			WARN_ON(!(sdata->wdev.valid_links & BIT(link_id)));  in ieee80211_link_init()
66 	if (link->sdata->vif.type == NL80211_IFTYPE_STATION)  in ieee80211_link_stop()
77 static void ieee80211_tear_down_links(struct ieee80211_sub_if_data *sdata,  in ieee80211_tear_down_links()  argument
89 			link = &sdata->deflink;  in ieee80211_tear_down_links()
98 	ieee80211_free_key_list(sdata->local, &keys);  in ieee80211_tear_down_links()
101 static void ieee80211_free_links(struct ieee80211_sub_if_data *sdata,  in ieee80211_free_links()  argument
110 static int ieee80211_check_dup_link_addrs(struct ieee80211_sub_if_data *sdata)  in ieee80211_check_dup_link_addrs()  argument
117 		link1 = sdata_dereference(sdata->link[i], sdata);  in ieee80211_check_dup_link_addrs()
123 			link2 = sdata_dereference(sdata->link[j], sdata);  in ieee80211_check_dup_link_addrs()
136 static void ieee80211_set_vif_links_bitmaps(struct ieee80211_sub_if_data *sdata,  in ieee80211_set_vif_links_bitmaps()  argument
139 	sdata->vif.valid_links = links;  in ieee80211_set_vif_links_bitmaps()
142 		sdata->vif.active_links = 0;  in ieee80211_set_vif_links_bitmaps()
146 	switch (sdata->vif.type) {  in ieee80211_set_vif_links_bitmaps()
149 		sdata->vif.active_links = links;  in ieee80211_set_vif_links_bitmaps()
152 		if (sdata->vif.active_links)  in ieee80211_set_vif_links_bitmaps()
155 		sdata->vif.active_links = links;  in ieee80211_set_vif_links_bitmaps()
162 static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata,  in ieee80211_vif_update_links()  argument
166 	u16 old_links = sdata->vif.valid_links;  in ieee80211_vif_update_links()
167 	u16 old_active = sdata->vif.active_links;  in ieee80211_vif_update_links()
177 	sdata_assert_lock(sdata);  in ieee80211_vif_update_links()
199 	BUILD_BUG_ON(sizeof(old) != sizeof(sdata->vif.link_conf));  in ieee80211_vif_update_links()
200 	memcpy(old, sdata->vif.link_conf, sizeof(old));  in ieee80211_vif_update_links()
202 	BUILD_BUG_ON(sizeof(old_data) != sizeof(sdata->link));  in ieee80211_vif_update_links()
203 	memcpy(old_data, sdata->link, sizeof(old_data));  in ieee80211_vif_update_links()
207 		if (rcu_access_pointer(sdata->link[link_id]) != &sdata->deflink) {  in ieee80211_vif_update_links()
212 			to_free[link_id] = container_of(rcu_access_pointer(sdata->link[link_id]),  in ieee80211_vif_update_links()
217 		RCU_INIT_POINTER(sdata->link[link_id], NULL);  in ieee80211_vif_update_links()
218 		RCU_INIT_POINTER(sdata->vif.link_conf[link_id], NULL);  in ieee80211_vif_update_links()
224 			rcu_access_pointer(sdata->link[link_id]) == &sdata->deflink);  in ieee80211_vif_update_links()
227 		ieee80211_link_init(sdata, link_id, &link->data, &link->conf);  in ieee80211_vif_update_links()
232 		ieee80211_link_init(sdata, -1, &sdata->deflink,  in ieee80211_vif_update_links()
233 				    &sdata->vif.bss_conf);  in ieee80211_vif_update_links()
235 	ret = ieee80211_check_dup_link_addrs(sdata);  in ieee80211_vif_update_links()
238 		ieee80211_tear_down_links(sdata, to_free, rem);  in ieee80211_vif_update_links()
240 		ieee80211_set_vif_links_bitmaps(sdata, new_links);  in ieee80211_vif_update_links()
243 		ret = drv_change_vif_links(sdata->local, sdata,  in ieee80211_vif_update_links()
245 					   new_links & sdata->vif.active_links,  in ieee80211_vif_update_links()
251 		memcpy(sdata->link, old_data, sizeof(old_data));  in ieee80211_vif_update_links()
252 		memcpy(sdata->vif.link_conf, old, sizeof(old));  in ieee80211_vif_update_links()
253 		ieee80211_set_vif_links_bitmaps(sdata, old_links);  in ieee80211_vif_update_links()
271 		ieee80211_link_init(sdata, -1, &sdata->deflink,  in ieee80211_vif_update_links()
272 				    &sdata->vif.bss_conf);  in ieee80211_vif_update_links()
276 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,  in ieee80211_vif_set_links()  argument
282 	ret = ieee80211_vif_update_links(sdata, links, new_links);  in ieee80211_vif_set_links()
283 	ieee80211_free_links(sdata, links);  in ieee80211_vif_set_links()
288 void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata)  in ieee80211_vif_clear_links()  argument
298 	sdata_lock(sdata);  in ieee80211_vif_clear_links()
299 	ieee80211_vif_update_links(sdata, links, 0);  in ieee80211_vif_clear_links()
300 	sdata_unlock(sdata);  in ieee80211_vif_clear_links()
302 	ieee80211_free_links(sdata, links);  in ieee80211_vif_clear_links()
305 static int _ieee80211_set_active_links(struct ieee80211_sub_if_data *sdata,  in _ieee80211_set_active_links()  argument
309 	struct ieee80211_local *local = sdata->local;  in _ieee80211_set_active_links()
310 	u16 old_active = sdata->vif.active_links;  in _ieee80211_set_active_links()
317 	if (!ieee80211_sdata_running(sdata))  in _ieee80211_set_active_links()
320 	if (sdata->vif.type != NL80211_IFTYPE_STATION)  in _ieee80211_set_active_links()
324 	if (active_links & ~sdata->vif.valid_links)  in _ieee80211_set_active_links()
332 		link_confs[i] = sdata_dereference(sdata->vif.link_conf[i],  in _ieee80211_set_active_links()
333 						  sdata);  in _ieee80211_set_active_links()
336 		sdata->vif.active_links |= active_links;  in _ieee80211_set_active_links()
337 		ret = drv_change_vif_links(local, sdata,  in _ieee80211_set_active_links()
339 					   sdata->vif.active_links,  in _ieee80211_set_active_links()
342 			sdata->vif.active_links = old_active;  in _ieee80211_set_active_links()
350 		link = sdata_dereference(sdata->link[link_id], sdata);  in _ieee80211_set_active_links()
358 		if (sdata != sta->sdata)  in _ieee80211_set_active_links()
360 		ret = drv_change_sta_links(local, sdata, &sta->sta,  in _ieee80211_set_active_links()
366 	ret = ieee80211_key_switch_links(sdata, rem, add);  in _ieee80211_set_active_links()
370 		if (sdata != sta->sdata)  in _ieee80211_set_active_links()
372 		ret = drv_change_sta_links(local, sdata, &sta->sta,  in _ieee80211_set_active_links()
381 		link = sdata_dereference(sdata->link[link_id], sdata);  in _ieee80211_set_active_links()
387 		ieee80211_link_info_change_notify(sdata, link,  in _ieee80211_set_active_links()
404 	old_active = sdata->vif.active_links;  in _ieee80211_set_active_links()
405 	sdata->vif.active_links = active_links;  in _ieee80211_set_active_links()
408 		ret = drv_change_vif_links(local, sdata, old_active,  in _ieee80211_set_active_links()
418 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);  in ieee80211_set_active_links()  local
419 	struct ieee80211_local *local = sdata->local;  in ieee80211_set_active_links()
423 	sdata_lock(sdata);  in ieee80211_set_active_links()
427 	old_active = sdata->vif.active_links;  in ieee80211_set_active_links()
434 		ret = _ieee80211_set_active_links(sdata,  in ieee80211_set_active_links()
437 			ret = _ieee80211_set_active_links(sdata, active_links);  in ieee80211_set_active_links()
440 		ret = _ieee80211_set_active_links(sdata, active_links);  in ieee80211_set_active_links()
445 	sdata_unlock(sdata);  in ieee80211_set_active_links()
454 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);  in ieee80211_set_active_links_async()  local
456 	if (!ieee80211_sdata_running(sdata))  in ieee80211_set_active_links_async()
459 	if (sdata->vif.type != NL80211_IFTYPE_STATION)  in ieee80211_set_active_links_async()
463 	if (active_links & ~sdata->vif.valid_links)  in ieee80211_set_active_links_async()
467 	if (sdata->vif.active_links == active_links)  in ieee80211_set_active_links_async()
470 	sdata->desired_active_links = active_links;  in ieee80211_set_active_links_async()
471 	schedule_work(&sdata->activate_links_work);  in ieee80211_set_active_links_async()