Bluetooth: Refactor ioctl scan state update to its own function

With subsequent patches we'll also need to update the discoverable
state. As the code grows bigger it's better to move this out from the
switch statement into its own function.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_core.c

@@ -2655,6 +2655,26 @@ int hci_dev_reset_stat(__u16 dev)
 	return ret;
 }
 
+static void hci_update_scan_state(struct hci_dev *hdev, u8 scan)
+{
+	bool conn_changed;
+
+	BT_DBG("%s scan 0x%02x", hdev->name, scan);
+
+	if ((scan & SCAN_PAGE))
+		conn_changed = !test_and_set_bit(HCI_CONNECTABLE,
+						 &hdev->dev_flags);
+	else
+		conn_changed = test_and_clear_bit(HCI_CONNECTABLE,
+						  &hdev->dev_flags);
+
+	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
+		return;
+
+	if (conn_changed)
+		mgmt_new_settings(hdev);
+}
+
 int hci_dev_cmd(unsigned int cmd, void __user *arg)
 {
 	struct hci_dev *hdev;
@@ -2719,19 +2739,8 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 		/* Ensure that the connectable state gets correctly
 		 * modified as this was a non-mgmt change.
 		 */
-		if (!err) {
-			bool changed;
-
-			if ((dr.dev_opt & SCAN_PAGE))
-				changed = !test_and_set_bit(HCI_CONNECTABLE,
-							    &hdev->dev_flags);
-			else
-				changed = test_and_clear_bit(HCI_CONNECTABLE,
-							     &hdev->dev_flags);
-
-			if (changed && test_bit(HCI_MGMT, &hdev->dev_flags))
-				mgmt_new_settings(hdev);
-		}
+		if (!err)
+			hci_update_scan_state(hdev, dr.dev_opt);
 		break;
 
 	case HCISETLINKPOL: