Bluetooth: Handle bulk URBs in btusb driver from notify callback
With the addition of usb_unlink_anchored_urbs() it is possible to fully
control the bulk URBs from the notify callback. There is no need to
schedule work and so only do this for the ISOC URBs.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 3c85f9b..9ca9520 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -680,8 +680,19 @@
BT_DBG("%s evt %d", hdev->name, evt);
- if (evt == HCI_NOTIFY_CONN_ADD || evt == HCI_NOTIFY_CONN_DEL)
- schedule_work(&data->work);
+ if (hdev->conn_hash.acl_num > 0) {
+ if (!test_and_set_bit(BTUSB_BULK_RUNNING, &data->flags)) {
+ if (btusb_submit_bulk_urb(hdev, GFP_ATOMIC) < 0)
+ clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+ else
+ btusb_submit_bulk_urb(hdev, GFP_ATOMIC);
+ }
+ } else {
+ clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+ usb_unlink_anchored_urbs(&data->bulk_anchor);
+ }
+
+ schedule_work(&data->work);
}
static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting)
@@ -732,18 +743,6 @@
struct btusb_data *data = container_of(work, struct btusb_data, work);
struct hci_dev *hdev = data->hdev;
- if (hdev->conn_hash.acl_num > 0) {
- if (!test_and_set_bit(BTUSB_BULK_RUNNING, &data->flags)) {
- if (btusb_submit_bulk_urb(hdev, GFP_KERNEL) < 0)
- clear_bit(BTUSB_BULK_RUNNING, &data->flags);
- else
- btusb_submit_bulk_urb(hdev, GFP_KERNEL);
- }
- } else {
- clear_bit(BTUSB_BULK_RUNNING, &data->flags);
- usb_kill_anchored_urbs(&data->bulk_anchor);
- }
-
if (hdev->conn_hash.sco_num > 0) {
if (data->isoc_altsetting != 2) {
clear_bit(BTUSB_ISOC_RUNNING, &data->flags);