Bluetooth: Add identity address check in param lookup functions

Since we only store entries with identity addresses in the
le_conn_params and pend_le_conns lists we can avoid unnecessary lookups
by checking for an identity address before diving into the lists
themselves.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_core.c

@@ -3399,6 +3399,10 @@ struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
 {
 	struct hci_conn_params *params;
 
+	/* The conn params list only contains identity addresses */
+	if (!hci_is_identity_address(addr, addr_type))
+		return NULL;
+
 	list_for_each_entry(params, &hdev->le_conn_params, list) {
 		if (bacmp(&params->addr, addr) == 0 &&
 		    params->addr_type == addr_type) {
@@ -3432,6 +3436,10 @@ struct hci_conn_params *hci_pend_le_conn_lookup(struct hci_dev *hdev,
 {
 	struct hci_conn_params *param;
 
+	/* The list only contains identity addresses */
+	if (!hci_is_identity_address(addr, addr_type))
+		return NULL;
+
 	list_for_each_entry(param, &hdev->pend_le_conns, pend_le_conn) {
 		if (bacmp(&param->addr, addr) == 0 &&
 		    param->addr_type == addr_type)

net/bluetooth/hci_event.c

@@ -4246,10 +4246,6 @@ static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
 		if (type == LE_ADV_DIRECT_IND)
 			return;
 
-		/* The conn params list only contains identity addresses */
-		if (!hci_is_identity_address(bdaddr, bdaddr_type))
-			return;
-
 		param = hci_conn_params_lookup(hdev, bdaddr, bdaddr_type);
 		if (!param || param->auto_connect != HCI_AUTO_CONN_REPORT)
 			return;