423 	/* If controller is not scanning we are done. */  in hci_le_scan_restart_sync()
428 		bt_dev_dbg(hdev, "Scanning is paused for suspend");  in hci_le_scan_restart_sync()
1111 	 * scanning and non-connectable advertising.  in hci_update_random_address_sync()
2211 	/* If controller is not scanning we are done. */  in hci_scan_disable_sync()
2216 		bt_dev_dbg(hdev, "Scanning is paused for suspend");  in hci_scan_disable_sync()
2222 		bt_dev_err(hdev, "Unable to disable scanning: %d", err);  in hci_scan_disable_sync()
2612 	/* Cannot disable addr resolution if scanning is enabled or  in hci_pause_addr_resolution()
2696 /* Device must not be scanning when updating the accept list.
2706  * Enable Scanning
2830 	 * - Interleaved scanning is not currently using the allowlist  in hci_update_accept_list_sync()
2970 		bt_dev_dbg(hdev, "Scanning is paused for suspend");  in hci_start_scan_sync()
2991 		bt_dev_dbg(hdev, "Scanning is paused for suspend");  in hci_passive_scan_sync()
2997 		bt_dev_err(hdev, "disable scanning failed: %d", err);  in hci_passive_scan_sync()
3002 	 * during passive scanning. Not using an non-resolvable address  in hci_passive_scan_sync()
3018 	 * happen before enabling scanning. The controller does  in hci_passive_scan_sync()
3019 	 * not allow accept list modification while scanning.  in hci_passive_scan_sync()
3024 	 * passive scanning cannot be started since that would require the host  in hci_passive_scan_sync()
3067 		/* Disable duplicates filter when scanning for advertisement  in hci_passive_scan_sync()
3075 		 * scanning, it is necessary to disable duplicates filter,  in hci_passive_scan_sync()
3097 /* This function controls the passive scanning based on hdev->pend_le_conns
3098  * list. If there are pending LE connection we start the background scanning,
3103  * Disable Scanning -> Update Accept List ->
3106  * Enable Scanning
3110  * Disable Scanning
3124 	/* No point in doing scanning if LE support hasn't been enabled */  in hci_update_passive_scan_sync()
3132 	/* Reset RSSI and UUID filters when starting background scanning  in hci_update_passive_scan_sync()
3151 		 * background scanning.  in hci_update_passive_scan_sync()
3154 		bt_dev_dbg(hdev, "stopping background scanning");  in hci_update_passive_scan_sync()
3158 			bt_dev_err(hdev, "stop background scanning failed: %d",  in hci_update_passive_scan_sync()
3165 		/* If controller is connecting, we should not start scanning  in hci_update_passive_scan_sync()
3172 		bt_dev_dbg(hdev, "start background scanning");  in hci_update_passive_scan_sync()
3176 			bt_dev_err(hdev, "start background scanning failed: %d",  in hci_update_passive_scan_sync()
5453 	/* Return reason if scanning since the connection shall probably be  in hci_le_connect_cancel_sync()
5601 	 * or in case of LE it was still scanning so it can be cleanup  in hci_abort_conn_sync()
5846 	/* If controller is scanning, it means the passive scanning is  in hci_active_scan_sync()
5848 	 * discovery scanning parameters.  in hci_active_scan_sync()
5852 		bt_dev_err(hdev, "Unable to disable scanning: %d", err);  in hci_active_scan_sync()
5877 		 * advertisement for one peer(*) during active scanning, and  in hci_active_scan_sync()
5885 		 * it is common to have active scanning for a short period of  in hci_active_scan_sync()
5902 	/* Resume passive scanning */  in hci_active_scan_sync()
5931 		/* When running simultaneous discovery, the LE scanning time  in hci_start_discovery_sync()
5933 		 * and LE scanning are scheduled by the controller.  in hci_start_discovery_sync()
5936 		 * and LE scanning are done sequentially with separate  in hci_start_discovery_sync()
5969 	 * restarting scanning during the discovery phase.  in hci_start_discovery_sync()
6020 	bool scanning = test_bit(HCI_PSCAN, &hdev->flags);  in hci_update_event_filter_sync()  local
6052 	if (scan && !scanning)  in hci_update_event_filter_sync()
6054 	else if (!scan && scanning)  in hci_update_event_filter_sync()
6079  * Pause discovery (active scanning/inquiry)
6081  * Pause Scanning (passive scanning in case discovery was not active)
6087  * Update passive scanning (lower duty cycle)
6110 	/* Prevent disconnects from causing scanning to be re-enabled */  in hci_suspend_sync()
6137 	/* Unpause to take care of updating scanning params */  in hci_suspend_sync()
6196 	/* Reset passive scanning to normal */  in hci_resume_scan_sync()
6206  * Update passive scanning (normal duty cycle)
6208  * Resume discovery (active scanning/inquiry)
6224 	/* Resume scanning */  in hci_resume_sync()
6444 		/* If we're active scanning and simultaneous roles is not  in hci_le_create_conn_sync()
6478 	/* If controller is scanning, we stop it since some controllers are  in hci_le_create_conn_sync()