36 static int iwl_send_scan_abort(struct iwl_priv *priv)  in iwl_send_scan_abort()  argument
48 	if (!test_bit(STATUS_READY, &priv->status) ||  in iwl_send_scan_abort()
49 	    !test_bit(STATUS_SCAN_HW, &priv->status) ||  in iwl_send_scan_abort()
50 	    test_bit(STATUS_FW_ERROR, &priv->status))  in iwl_send_scan_abort()
53 	ret = iwl_dvm_send_cmd(priv, &cmd);  in iwl_send_scan_abort()
65 		IWL_DEBUG_SCAN(priv, "SCAN_ABORT ret %d.\n",  in iwl_send_scan_abort()
74 static void iwl_complete_scan(struct iwl_priv *priv, bool aborted)  in iwl_complete_scan()  argument
81 	if (priv->scan_request) {  in iwl_complete_scan()
82 		IWL_DEBUG_SCAN(priv, "Complete scan in mac80211\n");  in iwl_complete_scan()
83 		ieee80211_scan_completed(priv->hw, &info);  in iwl_complete_scan()
86 	priv->scan_type = IWL_SCAN_NORMAL;  in iwl_complete_scan()
87 	priv->scan_vif = NULL;  in iwl_complete_scan()
88 	priv->scan_request = NULL;  in iwl_complete_scan()
91 static void iwl_process_scan_complete(struct iwl_priv *priv)  in iwl_process_scan_complete()  argument
95 	lockdep_assert_held(&priv->mutex);  in iwl_process_scan_complete()
97 	if (!test_and_clear_bit(STATUS_SCAN_COMPLETE, &priv->status))  in iwl_process_scan_complete()
100 	IWL_DEBUG_SCAN(priv, "Completed scan.\n");  in iwl_process_scan_complete()
102 	cancel_delayed_work(&priv->scan_check);  in iwl_process_scan_complete()
104 	aborted = test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->status);  in iwl_process_scan_complete()
106 		IWL_DEBUG_SCAN(priv, "Aborted scan completed.\n");  in iwl_process_scan_complete()
108 	if (!test_and_clear_bit(STATUS_SCANNING, &priv->status)) {  in iwl_process_scan_complete()
109 		IWL_DEBUG_SCAN(priv, "Scan already completed.\n");  in iwl_process_scan_complete()
113 	if (priv->scan_type != IWL_SCAN_NORMAL && !aborted) {  in iwl_process_scan_complete()
117 		if (priv->scan_request == NULL)  in iwl_process_scan_complete()
121 		err = iwl_scan_initiate(priv, priv->scan_vif, IWL_SCAN_NORMAL,  in iwl_process_scan_complete()
122 					priv->scan_request->channels[0]->band);  in iwl_process_scan_complete()
124 			IWL_DEBUG_SCAN(priv,  in iwl_process_scan_complete()
134 	iwl_complete_scan(priv, aborted);  in iwl_process_scan_complete()
138 	if (!iwl_is_ready_rf(priv))  in iwl_process_scan_complete()
141 	iwlagn_post_scan(priv);  in iwl_process_scan_complete()
144 void iwl_force_scan_end(struct iwl_priv *priv)  in iwl_force_scan_end()  argument
146 	lockdep_assert_held(&priv->mutex);  in iwl_force_scan_end()
148 	if (!test_bit(STATUS_SCANNING, &priv->status)) {  in iwl_force_scan_end()
149 		IWL_DEBUG_SCAN(priv, "Forcing scan end while not scanning\n");  in iwl_force_scan_end()
153 	IWL_DEBUG_SCAN(priv, "Forcing scan end\n");  in iwl_force_scan_end()
154 	clear_bit(STATUS_SCANNING, &priv->status);  in iwl_force_scan_end()
155 	clear_bit(STATUS_SCAN_HW, &priv->status);  in iwl_force_scan_end()
156 	clear_bit(STATUS_SCAN_ABORTING, &priv->status);  in iwl_force_scan_end()
157 	clear_bit(STATUS_SCAN_COMPLETE, &priv->status);  in iwl_force_scan_end()
158 	iwl_complete_scan(priv, true);  in iwl_force_scan_end()
161 static void iwl_do_scan_abort(struct iwl_priv *priv)  in iwl_do_scan_abort()  argument
165 	lockdep_assert_held(&priv->mutex);  in iwl_do_scan_abort()
167 	if (!test_bit(STATUS_SCANNING, &priv->status)) {  in iwl_do_scan_abort()
168 		IWL_DEBUG_SCAN(priv, "Not performing scan to abort\n");  in iwl_do_scan_abort()
172 	if (test_and_set_bit(STATUS_SCAN_ABORTING, &priv->status)) {  in iwl_do_scan_abort()
173 		IWL_DEBUG_SCAN(priv, "Scan abort in progress\n");  in iwl_do_scan_abort()
177 	ret = iwl_send_scan_abort(priv);  in iwl_do_scan_abort()
179 		IWL_DEBUG_SCAN(priv, "Send scan abort failed %d\n", ret);  in iwl_do_scan_abort()
180 		iwl_force_scan_end(priv);  in iwl_do_scan_abort()
182 		IWL_DEBUG_SCAN(priv, "Successfully send scan abort\n");  in iwl_do_scan_abort()
188 int iwl_scan_cancel(struct iwl_priv *priv)  in iwl_scan_cancel()  argument
190 	IWL_DEBUG_SCAN(priv, "Queuing abort scan\n");  in iwl_scan_cancel()
191 	queue_work(priv->workqueue, &priv->abort_scan);  in iwl_scan_cancel()
199 void iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)  in iwl_scan_cancel_timeout()  argument
203 	lockdep_assert_held(&priv->mutex);  in iwl_scan_cancel_timeout()
205 	IWL_DEBUG_SCAN(priv, "Scan cancel timeout\n");  in iwl_scan_cancel_timeout()
207 	iwl_do_scan_abort(priv);  in iwl_scan_cancel_timeout()
210 		if (!test_bit(STATUS_SCAN_HW, &priv->status))  in iwl_scan_cancel_timeout()
228 	iwl_process_scan_complete(priv);  in iwl_scan_cancel_timeout()
232 static void iwl_rx_reply_scan(struct iwl_priv *priv,  in iwl_rx_reply_scan()  argument
239 	IWL_DEBUG_SCAN(priv, "Scan request status = 0x%x\n", notif->status);  in iwl_rx_reply_scan()
244 static void iwl_rx_scan_start_notif(struct iwl_priv *priv,  in iwl_rx_scan_start_notif()  argument
250 	priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);  in iwl_rx_scan_start_notif()
251 	IWL_DEBUG_SCAN(priv, "Scan start: "  in iwl_rx_scan_start_notif()
262 static void iwl_rx_scan_results_notif(struct iwl_priv *priv,  in iwl_rx_scan_results_notif()  argument
269 	IWL_DEBUG_SCAN(priv, "Scan ch.res: "  in iwl_rx_scan_results_notif()
280 		       le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf);  in iwl_rx_scan_results_notif()
285 static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,  in iwl_rx_scan_complete_notif()  argument
291 	IWL_DEBUG_SCAN(priv, "Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",  in iwl_rx_scan_complete_notif()
296 	IWL_DEBUG_SCAN(priv, "Scan on %sGHz took %dms\n",  in iwl_rx_scan_complete_notif()
297 		       (priv->scan_band == NL80211_BAND_2GHZ) ? "2.4" : "5.2",  in iwl_rx_scan_complete_notif()
298 		       jiffies_to_msecs(jiffies - priv->scan_start));  in iwl_rx_scan_complete_notif()
308 	set_bit(STATUS_SCAN_COMPLETE, &priv->status);  in iwl_rx_scan_complete_notif()
309 	clear_bit(STATUS_SCAN_HW, &priv->status);  in iwl_rx_scan_complete_notif()
310 	queue_work(priv->workqueue, &priv->scan_completed);  in iwl_rx_scan_complete_notif()
312 	if (priv->iw_mode != NL80211_IFTYPE_ADHOC &&  in iwl_rx_scan_complete_notif()
313 	    iwl_advanced_bt_coexist(priv) &&  in iwl_rx_scan_complete_notif()
314 	    priv->bt_status != scan_notif->bt_status) {  in iwl_rx_scan_complete_notif()
317 			if (!priv->bt_ch_announce)  in iwl_rx_scan_complete_notif()
318 				priv->bt_traffic_load =  in iwl_rx_scan_complete_notif()
326 			priv->bt_traffic_load =  in iwl_rx_scan_complete_notif()
329 		priv->bt_status = scan_notif->bt_status;  in iwl_rx_scan_complete_notif()
330 		queue_work(priv->workqueue,  in iwl_rx_scan_complete_notif()
331 			   &priv->bt_traffic_change_work);  in iwl_rx_scan_complete_notif()
335 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv)  in iwl_setup_rx_scan_handlers()  argument
338 	priv->rx_handlers[REPLY_SCAN_CMD] = iwl_rx_reply_scan;  in iwl_setup_rx_scan_handlers()
339 	priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl_rx_scan_start_notif;  in iwl_setup_rx_scan_handlers()
340 	priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =  in iwl_setup_rx_scan_handlers()
342 	priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =  in iwl_setup_rx_scan_handlers()
346 static u16 iwl_get_active_dwell_time(struct iwl_priv *priv,  in iwl_get_active_dwell_time()  argument
357 static u16 iwl_limit_dwell(struct iwl_priv *priv, u16 dwell_time)  in iwl_limit_dwell()  argument
374 	for_each_context(priv, ctx) {  in iwl_limit_dwell()
415 static u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,  in iwl_get_passive_dwell_time()  argument
422 	return iwl_limit_dwell(priv, passive);  in iwl_get_passive_dwell_time()
426 static u8 iwl_get_single_channel_number(struct iwl_priv *priv,  in iwl_get_single_channel_number()  argument
429 	struct ieee80211_supported_band *sband = priv->hw->wiphy->bands[band];  in iwl_get_single_channel_number()
436 		for_each_context(priv, ctx) {  in iwl_get_single_channel_number()
453 static int iwl_get_channel_for_reset_scan(struct iwl_priv *priv,  in iwl_get_channel_for_reset_scan()  argument
461 	sband = iwl_get_hw_mode(priv, band);  in iwl_get_channel_for_reset_scan()
463 		IWL_ERR(priv, "invalid band\n");  in iwl_get_channel_for_reset_scan()
467 	channel = iwl_get_single_channel_number(priv, band);  in iwl_get_channel_for_reset_scan()
484 	IWL_ERR(priv, "no valid channel found\n");  in iwl_get_channel_for_reset_scan()
488 static int iwl_get_channels_for_scan(struct iwl_priv *priv,  in iwl_get_channels_for_scan()  argument
501 	sband = iwl_get_hw_mode(priv, band);  in iwl_get_channels_for_scan()
505 	active_dwell = iwl_get_active_dwell_time(priv, band, n_probes);  in iwl_get_channels_for_scan()
506 	passive_dwell = iwl_get_passive_dwell_time(priv, band);  in iwl_get_channels_for_scan()
511 	for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) {  in iwl_get_channels_for_scan()
512 		chan = priv->scan_request->channels[i];  in iwl_get_channels_for_scan()
543 		IWL_DEBUG_SCAN(priv, "Scanning ch=%d prob=0x%X [%s %d]\n",  in iwl_get_channels_for_scan()
554 	IWL_DEBUG_SCAN(priv, "total channels to scan %d\n", added);  in iwl_get_channels_for_scan()
609 static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)  in iwlagn_request_scan()  argument
616 	struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];  in iwlagn_request_scan()
622 	u8 rx_ant = priv->nvm_data->valid_rx_ant;  in iwlagn_request_scan()
627 	u8 scan_tx_antennas = priv->nvm_data->valid_tx_ant;  in iwlagn_request_scan()
631 			    priv->fw->ucode_capa.max_probe_length;  in iwlagn_request_scan()
635 	if (WARN_ON(priv->scan_type == IWL_SCAN_NORMAL &&  in iwlagn_request_scan()
636 		    (!priv->scan_request ||  in iwlagn_request_scan()
637 		     priv->scan_request->n_channels > MAX_SCAN_CHANNEL)))  in iwlagn_request_scan()
640 	lockdep_assert_held(&priv->mutex);  in iwlagn_request_scan()
645 	if (!priv->scan_cmd) {  in iwlagn_request_scan()
646 		priv->scan_cmd = kmalloc(scan_cmd_size, GFP_KERNEL);  in iwlagn_request_scan()
647 		if (!priv->scan_cmd) {  in iwlagn_request_scan()
648 			IWL_DEBUG_SCAN(priv,  in iwlagn_request_scan()
652 		priv->scan_cmd_size = scan_cmd_size;  in iwlagn_request_scan()
654 	if (priv->scan_cmd_size < scan_cmd_size) {  in iwlagn_request_scan()
655 		IWL_DEBUG_SCAN(priv,  in iwlagn_request_scan()
659 	scan = priv->scan_cmd;  in iwlagn_request_scan()
660 	memset(scan, 0, priv->scan_cmd_size);  in iwlagn_request_scan()
665 	if (iwl_is_any_associated(priv)) {  in iwlagn_request_scan()
671 		IWL_DEBUG_INFO(priv, "Scanning while associated...\n");  in iwlagn_request_scan()
672 		switch (priv->scan_type) {  in iwlagn_request_scan()
690 		IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n",  in iwlagn_request_scan()
694 	switch (priv->scan_type) {  in iwlagn_request_scan()
696 		IWL_DEBUG_SCAN(priv, "Start internal passive scan.\n");  in iwlagn_request_scan()
705 		if (priv->scan_request->n_ssids) {  in iwlagn_request_scan()
707 			IWL_DEBUG_SCAN(priv, "Kicking off active scan\n");  in iwlagn_request_scan()
712 			ssid_len = priv->scan_request->ssids[0].ssid_len;  in iwlagn_request_scan()
713 			ssid = priv->scan_request->ssids[0].ssid;  in iwlagn_request_scan()
719 			for (i = priv->scan_request->n_ssids - 1; i >= 1; i--) {  in iwlagn_request_scan()
722 					priv->scan_request->ssids[i].ssid_len;  in iwlagn_request_scan()
724 				       priv->scan_request->ssids[i].ssid,  in iwlagn_request_scan()
725 				       priv->scan_request->ssids[i].ssid_len);  in iwlagn_request_scan()
731 			IWL_DEBUG_SCAN(priv, "Start passive scan.\n");  in iwlagn_request_scan()
739 	switch (priv->scan_band) {  in iwlagn_request_scan()
743 			priv->contexts[IWL_RXON_CTX_BSS].active.flags &  in iwlagn_request_scan()
746 		if ((priv->scan_request && priv->scan_request->no_cck) ||  in iwlagn_request_scan()
757 		if (priv->lib->bt_params &&  in iwlagn_request_scan()
758 		    priv->lib->bt_params->advanced_bt_coexist)  in iwlagn_request_scan()
765 		IWL_WARN(priv, "Invalid scan band\n");  in iwlagn_request_scan()
790 	if (priv->new_scan_threshold_behaviour)  in iwlagn_request_scan()
797 	band = priv->scan_band;  in iwlagn_request_scan()
800 	    priv->lib->bt_params &&  in iwlagn_request_scan()
801 	    priv->lib->bt_params->advanced_bt_coexist) {  in iwlagn_request_scan()
806 	priv->scan_tx_ant[band] = iwl_toggle_tx_ant(priv,  in iwlagn_request_scan()
807 						    priv->scan_tx_ant[band],  in iwlagn_request_scan()
809 	rate_flags |= iwl_ant_idx_to_flags(priv->scan_tx_ant[band]);  in iwlagn_request_scan()
816 	if (test_bit(STATUS_POWER_PMI, &priv->status) &&  in iwlagn_request_scan()
817 	    !(priv->hw->conf.flags & IEEE80211_CONF_IDLE)) {  in iwlagn_request_scan()
820 				((u8)(priv->chain_noise_data.active_chains));  in iwlagn_request_scan()
824 		IWL_DEBUG_SCAN(priv, "chain_noise_data.active_chains: %u\n",  in iwlagn_request_scan()
825 				priv->chain_noise_data.active_chains);  in iwlagn_request_scan()
829 	if (priv->lib->bt_params &&  in iwlagn_request_scan()
830 	    priv->lib->bt_params->advanced_bt_coexist &&  in iwlagn_request_scan()
831 	    priv->bt_full_concurrent) {  in iwlagn_request_scan()
838 		priv->nvm_data->valid_rx_ant << RXON_RX_CHAIN_VALID_POS;  in iwlagn_request_scan()
843 	switch (priv->scan_type) {  in iwlagn_request_scan()
848 					priv->scan_request->ie,  in iwlagn_request_scan()
849 					priv->scan_request->ie_len,  in iwlagn_request_scan()
869 	switch (priv->scan_type) {  in iwlagn_request_scan()
872 			iwl_get_channel_for_reset_scan(priv, vif, band,  in iwlagn_request_scan()
877 			iwl_get_channels_for_scan(priv, vif, band,  in iwlagn_request_scan()
884 		IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count);  in iwlagn_request_scan()
895 	set_bit(STATUS_SCAN_HW, &priv->status);  in iwlagn_request_scan()
897 	ret = iwlagn_set_pan_params(priv);  in iwlagn_request_scan()
899 		clear_bit(STATUS_SCAN_HW, &priv->status);  in iwlagn_request_scan()
903 	ret = iwl_dvm_send_cmd(priv, &cmd);  in iwlagn_request_scan()
905 		clear_bit(STATUS_SCAN_HW, &priv->status);  in iwlagn_request_scan()
906 		iwlagn_set_pan_params(priv);  in iwlagn_request_scan()
912 void iwl_init_scan_params(struct iwl_priv *priv)  in iwl_init_scan_params()  argument
914 	u8 ant_idx = fls(priv->nvm_data->valid_tx_ant) - 1;  in iwl_init_scan_params()
915 	if (!priv->scan_tx_ant[NL80211_BAND_5GHZ])  in iwl_init_scan_params()
916 		priv->scan_tx_ant[NL80211_BAND_5GHZ] = ant_idx;  in iwl_init_scan_params()
917 	if (!priv->scan_tx_ant[NL80211_BAND_2GHZ])  in iwl_init_scan_params()
918 		priv->scan_tx_ant[NL80211_BAND_2GHZ] = ant_idx;  in iwl_init_scan_params()
921 int __must_check iwl_scan_initiate(struct iwl_priv *priv,  in iwl_scan_initiate()  argument
928 	lockdep_assert_held(&priv->mutex);  in iwl_scan_initiate()
930 	cancel_delayed_work(&priv->scan_check);  in iwl_scan_initiate()
932 	if (!iwl_is_ready_rf(priv)) {  in iwl_scan_initiate()
933 		IWL_WARN(priv, "Request scan called when driver not ready.\n");  in iwl_scan_initiate()
937 	if (test_bit(STATUS_SCAN_HW, &priv->status)) {  in iwl_scan_initiate()
938 		IWL_DEBUG_SCAN(priv,  in iwl_scan_initiate()
943 	if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {  in iwl_scan_initiate()
944 		IWL_DEBUG_SCAN(priv, "Scan request while abort pending.\n");  in iwl_scan_initiate()
948 	IWL_DEBUG_SCAN(priv, "Starting %sscan...\n",  in iwl_scan_initiate()
952 	set_bit(STATUS_SCANNING, &priv->status);  in iwl_scan_initiate()
953 	priv->scan_type = scan_type;  in iwl_scan_initiate()
954 	priv->scan_start = jiffies;  in iwl_scan_initiate()
955 	priv->scan_band = band;  in iwl_scan_initiate()
957 	ret = iwlagn_request_scan(priv, vif);  in iwl_scan_initiate()
959 		clear_bit(STATUS_SCANNING, &priv->status);  in iwl_scan_initiate()
960 		priv->scan_type = IWL_SCAN_NORMAL;  in iwl_scan_initiate()
964 	queue_delayed_work(priv->workqueue, &priv->scan_check,  in iwl_scan_initiate()
975 void iwl_internal_short_hw_scan(struct iwl_priv *priv)  in iwl_internal_short_hw_scan()  argument
977 	queue_work(priv->workqueue, &priv->start_internal_scan);  in iwl_internal_short_hw_scan()
982 	struct iwl_priv *priv =  in iwl_bg_start_internal_scan()  local
985 	IWL_DEBUG_SCAN(priv, "Start internal scan\n");  in iwl_bg_start_internal_scan()
987 	mutex_lock(&priv->mutex);  in iwl_bg_start_internal_scan()
989 	if (priv->scan_type == IWL_SCAN_RADIO_RESET) {  in iwl_bg_start_internal_scan()
990 		IWL_DEBUG_SCAN(priv, "Internal scan already in progress\n");  in iwl_bg_start_internal_scan()
994 	if (test_bit(STATUS_SCANNING, &priv->status)) {  in iwl_bg_start_internal_scan()
995 		IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");  in iwl_bg_start_internal_scan()
999 	if (iwl_scan_initiate(priv, NULL, IWL_SCAN_RADIO_RESET, priv->band))  in iwl_bg_start_internal_scan()
1000 		IWL_DEBUG_SCAN(priv, "failed to start internal short scan\n");  in iwl_bg_start_internal_scan()
1002 	mutex_unlock(&priv->mutex);  in iwl_bg_start_internal_scan()
1007 	struct iwl_priv *priv =  in iwl_bg_scan_check()  local
1010 	IWL_DEBUG_SCAN(priv, "Scan check work\n");  in iwl_bg_scan_check()
1015 	mutex_lock(&priv->mutex);  in iwl_bg_scan_check()
1016 	iwl_force_scan_end(priv);  in iwl_bg_scan_check()
1017 	mutex_unlock(&priv->mutex);  in iwl_bg_scan_check()
1022 	struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);  in iwl_bg_abort_scan()  local
1024 	IWL_DEBUG_SCAN(priv, "Abort scan work\n");  in iwl_bg_abort_scan()
1028 	mutex_lock(&priv->mutex);  in iwl_bg_abort_scan()
1029 	iwl_scan_cancel_timeout(priv, 200);  in iwl_bg_abort_scan()
1030 	mutex_unlock(&priv->mutex);  in iwl_bg_abort_scan()
1035 	struct iwl_priv *priv =  in iwl_bg_scan_completed()  local
1038 	mutex_lock(&priv->mutex);  in iwl_bg_scan_completed()
1039 	iwl_process_scan_complete(priv);  in iwl_bg_scan_completed()
1040 	mutex_unlock(&priv->mutex);  in iwl_bg_scan_completed()
1043 void iwl_setup_scan_deferred_work(struct iwl_priv *priv)  in iwl_setup_scan_deferred_work()  argument
1045 	INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);  in iwl_setup_scan_deferred_work()
1046 	INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan);  in iwl_setup_scan_deferred_work()
1047 	INIT_WORK(&priv->start_internal_scan, iwl_bg_start_internal_scan);  in iwl_setup_scan_deferred_work()
1048 	INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check);  in iwl_setup_scan_deferred_work()
1051 void iwl_cancel_scan_deferred_work(struct iwl_priv *priv)  in iwl_cancel_scan_deferred_work()  argument
1053 	cancel_work_sync(&priv->start_internal_scan);  in iwl_cancel_scan_deferred_work()
1054 	cancel_work_sync(&priv->abort_scan);  in iwl_cancel_scan_deferred_work()
1055 	cancel_work_sync(&priv->scan_completed);  in iwl_cancel_scan_deferred_work()
1057 	if (cancel_delayed_work_sync(&priv->scan_check)) {  in iwl_cancel_scan_deferred_work()
1058 		mutex_lock(&priv->mutex);  in iwl_cancel_scan_deferred_work()
1059 		iwl_force_scan_end(priv);  in iwl_cancel_scan_deferred_work()
1060 		mutex_unlock(&priv->mutex);  in iwl_cancel_scan_deferred_work()