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Commit 49c50922 authored by Johan Hedberg's avatar Johan Hedberg Committed by Marcel Holtmann
Browse files

Bluetooth: Fix LE reconnection logic 



We can't use hci_explicit_connect_lookup() since that would only cover
explicit connections, leaving normal reconnections completely
untouched. Not using it in turn means leaving out entries in
pend_le_reports.

To fix this and simplify the logic move conn params from the reports
list to the pend_le_conns list for the duration of an explicit
connect. Once the connect is complete move the params back to the
pend_le_reports list. This also means that the explicit connect lookup
function only needs to look into the pend_le_conns list.

Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent b958f9a3

net/bluetooth/hci_conn.c

+2 −2
Original line number Diff line number Diff line
@@ -1000,8 +1000,8 @@ static int hci_explicit_conn_params_set(struct hci_request *req, 
	/* If we created new params, or existing params were marked as disabled,

	 * mark them to be used just once to connect.

	 */

	if (params->auto_connect == HCI_AUTO_CONN_DISABLED) {

		params->auto_connect = HCI_AUTO_CONN_EXPLICIT;

	if (params->auto_connect == HCI_AUTO_CONN_DISABLED ||

	    params->auto_connect == HCI_AUTO_CONN_REPORT) {

		list_del_init(&params->action);

		list_add(&params->action, &hdev->pend_le_conns);

	}

net/bluetooth/hci_core.c

+0 −7
Original line number Diff line number Diff line
@@ -2861,13 +2861,6 @@ struct hci_conn_params *hci_explicit_connect_lookup(struct hci_dev *hdev, 
			return param;

	}



	list_for_each_entry(param, &hdev->pend_le_reports, action) {

		if (bacmp(&param->addr, addr) == 0 &&

		    param->addr_type == addr_type &&

		    param->explicit_connect)

			return param;

	}



	return NULL;

}

net/bluetooth/hci_event.c

+2 −2
Original line number Diff line number Diff line
@@ -4653,8 +4653,8 @@ static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev, 
	/* If we're not connectable only connect devices that we have in

	 * our pend_le_conns list.

	 */

	params = hci_explicit_connect_lookup(hdev, addr, addr_type);



	params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,

					   addr_type);

	if (!params)

		return NULL;

net/bluetooth/mgmt.c

+4 −1
Original line number Diff line number Diff line
@@ -6117,6 +6117,9 @@ static int hci_conn_params_set(struct hci_request *req, bdaddr_t *addr, 
		__hci_update_background_scan(req);

		break;

	case HCI_AUTO_CONN_REPORT:

		if (params->explicit_connect)

			list_add(&params->action, &hdev->pend_le_conns);

		else

			list_add(&params->action, &hdev->pend_le_reports);

		__hci_update_background_scan(req);

		break;