Re: [PATCH 5.10 157/236] Bluetooth: Move shutdown callback before flushing tx and rx queue

Pavel Machek
2021-09-15T11:18:47Z

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Hi!

> [ Upstream commit 0ea53674d07fb6db2dd7a7ec2fdc85a12eb246c2 ]

Upstream commit is okay...

> So move the shutdown callback before flushing TX/RX queue to resolve the
> issue.

...but something went wrong in stable. This is not moving code, this
is duplicating it:

> --- a/net/bluetooth/hci_core.c
> +++ b/net/bluetooth/hci_core.c
> @@ -1726,6 +1726,14 @@ int hci_dev_do_close(struct hci_dev *hdev)
> hci_request_cancel_all(hdev);
> hci_req_sync_lock(hdev);
>
> + if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
> + !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
> + test_bit(HCI_UP, &hdev->flags)) {
> + /* Execute vendor specific shutdown routine */
> + if (hdev->shutdown)
> + hdev->shutdown(hdev);
> + }
> +
> if (!test_and_clear_bit(HCI_UP, &hdev->flags)) {
> cancel_delayed_work_sync(&hdev->cmd_timer);
> hci_req_sync_unlock(hdev);

And yes, we end up with 2 copies in 5.10.

Best regards,
Pavel
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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