commit 49c509220db990ad003060db2267b9bbb597cd94
author Johan Hedberg <johan.hedberg@intel.com> Fri Oct 16 10:07:51 2015 +0300
committer Marcel Holtmann <marcel@holtmann.org> Fri Oct 16 09:24:41 2015 +0200
tree f771981f049df58235cd958fd99da531a583312c
parent b958f9a3e87766a88036616389eaaf3ad3bd5fc8

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: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_conn.c

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 4c240c1..d5c06ee 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1000,8 +1000,8 @@
 	/* 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

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index adcbc74..e837539 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2861,13 +2861,6 @@
 			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

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 509e415..bc31099 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4653,8 +4653,8 @@
 	/* 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

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 9a9bbc9..4dbfe01 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -6117,7 +6117,10 @@
 		__hci_update_background_scan(req);
 		break;
 	case HCI_AUTO_CONN_REPORT:
-		list_add(&params->action, &hdev->pend_le_reports);
+		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;
 	case HCI_AUTO_CONN_DIRECT: