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()
2261 	/* If controller is not scanning we are done. */  in hci_scan_disable_sync()
2266 		bt_dev_dbg(hdev, "Scanning is paused for suspend");  in hci_scan_disable_sync()
2272 		bt_dev_err(hdev, "Unable to disable scanning: %d", err);  in hci_scan_disable_sync()
2666 	/* Cannot disable addr resolution if scanning is enabled or  in hci_pause_addr_resolution()
2750 /* Device must not be scanning when updating the accept list.
2760  * Enable Scanning
2884 	 * - Interleaved scanning is not currently using the allowlist  in hci_update_accept_list_sync()
3024 		bt_dev_dbg(hdev, "Scanning is paused for suspend");  in hci_start_scan_sync()
3045 		bt_dev_dbg(hdev, "Scanning is paused for suspend");  in hci_passive_scan_sync()
3051 		bt_dev_err(hdev, "disable scanning failed: %d", err);  in hci_passive_scan_sync()
3056 	 * during passive scanning. Not using an non-resolvable address  in hci_passive_scan_sync()
3072 	 * happen before enabling scanning. The controller does  in hci_passive_scan_sync()
3073 	 * not allow accept list modification while scanning.  in hci_passive_scan_sync()
3078 	 * passive scanning cannot be started since that would require the host  in hci_passive_scan_sync()
3121 		/* Disable duplicates filter when scanning for advertisement  in hci_passive_scan_sync()
3129 		 * scanning, it is necessary to disable duplicates filter,  in hci_passive_scan_sync()
3151 /* This function controls the passive scanning based on hdev->pend_le_conns
3152  * list. If there are pending LE connection we start the background scanning,
3157  * Disable Scanning -> Update Accept List ->
3160  * Enable Scanning
3164  * Disable Scanning
3178 	/* No point in doing scanning if LE support hasn't been enabled */  in hci_update_passive_scan_sync()
3186 	/* Reset RSSI and UUID filters when starting background scanning  in hci_update_passive_scan_sync()
3205 		 * background scanning.  in hci_update_passive_scan_sync()
3208 		bt_dev_dbg(hdev, "stopping background scanning");  in hci_update_passive_scan_sync()
3212 			bt_dev_err(hdev, "stop background scanning failed: %d",  in hci_update_passive_scan_sync()
3219 		/* If controller is connecting, we should not start scanning  in hci_update_passive_scan_sync()
3226 		bt_dev_dbg(hdev, "start background scanning");  in hci_update_passive_scan_sync()
3230 			bt_dev_err(hdev, "start background scanning failed: %d",  in hci_update_passive_scan_sync()
5507 	/* Return reason if scanning since the connection shall probably be  in hci_le_connect_cancel_sync()
5655 	 * or in case of LE it was still scanning so it can be cleanup  in hci_abort_conn_sync()
5900 	/* If controller is scanning, it means the passive scanning is  in hci_active_scan_sync()
5902 	 * discovery scanning parameters.  in hci_active_scan_sync()
5906 		bt_dev_err(hdev, "Unable to disable scanning: %d", err);  in hci_active_scan_sync()
5931 		 * advertisement for one peer(*) during active scanning, and  in hci_active_scan_sync()
5939 		 * it is common to have active scanning for a short period of  in hci_active_scan_sync()
5956 	/* Resume passive scanning */  in hci_active_scan_sync()
5985 		/* When running simultaneous discovery, the LE scanning time  in hci_start_discovery_sync()
5987 		 * and LE scanning are scheduled by the controller.  in hci_start_discovery_sync()
5990 		 * and LE scanning are done sequentially with separate  in hci_start_discovery_sync()
6023 	 * restarting scanning during the discovery phase.  in hci_start_discovery_sync()
6074 	bool scanning = test_bit(HCI_PSCAN, &hdev->flags);  in hci_update_event_filter_sync()  local
6106 	if (scan && !scanning)  in hci_update_event_filter_sync()
6108 	else if (!scan && scanning)  in hci_update_event_filter_sync()
6133  * Pause discovery (active scanning/inquiry)
6135  * Pause Scanning (passive scanning in case discovery was not active)
6141  * Update passive scanning (lower duty cycle)
6164 	/* Prevent disconnects from causing scanning to be re-enabled */  in hci_suspend_sync()
6191 	/* Unpause to take care of updating scanning params */  in hci_suspend_sync()
6250 	/* Reset passive scanning to normal */  in hci_resume_scan_sync()
6260  * Update passive scanning (normal duty cycle)
6262  * Resume discovery (active scanning/inquiry)
6278 	/* Resume scanning */  in hci_resume_sync()
6503 		/* If we're active scanning and simultaneous roles is not  in hci_le_create_conn_sync()
6537 	/* If controller is scanning, we stop it since some controllers are  in hci_le_create_conn_sync()