Bluetooth: Support scanning for devices using RPA

When we're scanning for specific devices that use an RPA we need to
convert the RPA to the identity address before looking up the entry in
the connection parameters. This patch adds the necessary code to do this
in the process_adv_report() function.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_event.c

@@ -4231,6 +4231,7 @@ static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
 	 */
 	if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
 		struct hci_conn_params *param;
+		struct smp_irk *irk;
 
 		if (type == LE_ADV_IND || type == LE_ADV_DIRECT_IND)
 			check_pending_le_conn(hdev, bdaddr, bdaddr_type);
@@ -4241,6 +4242,17 @@ static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
 		if (type == LE_ADV_DIRECT_IND)
 			return;
 
+		/* Check if we need to convert to identity address */
+		irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
+		if (irk) {
+			bdaddr = &irk->bdaddr;
+			bdaddr_type = irk->addr_type;
+		}
+
+		/* 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;