From: Mattijs Korpershoek <mkorpershoek@baylibre.com>
To: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Fabien Parent <fparent@baylibre.com>,
Sean Wang <sean.wang@mediatek.com>,
"open list:BLUETOOTH SUBSYSTEM" <linux-bluetooth@vger.kernel.org>,
"open list:NETWORKING [GENERAL]" <netdev@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] Bluetooth: Shutdown controller after workqueues are flushed or cancelled
Date: Tue, 03 Aug 2021 10:21:40 +0200 [thread overview]
Message-ID: <87a6lzx7jf.fsf@baylibre.com> (raw)
In-Reply-To: <CAAd53p4Ss1Z-7CB4g=_xZYxo1xDz6ih6GHUuMcgncy+yNAfU4w@mail.gmail.com>
Hi Kai-Heng,
Kai-Heng Feng <kai.heng.feng@canonical.com> writes:
> Hi Mattijs,
>
> On Fri, Jul 30, 2021 at 7:40 PM Mattijs Korpershoek
> <mkorpershoek@baylibre.com> wrote:
>>
>> Hi Kai-Heng,
>
> [snipped]
>
>> Thank you for your help. Sorry I did not post the logs previously.
>>
>> dmesg: https://pastebin.com/tpWDNyQr
>> ftrace on btmtksdio: https://pastebin.com/jmhvmwUw
>
> Seems like btmtksdio needs shudown() to be called before flush().
> Since the order was there for a very long time, changing the calling
> order indeed can break what driver expects.
> Can you please test the following patch:
> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> index 2560ed2f144d..a61e610a400c 100644
> --- a/net/bluetooth/hci_core.c
> +++ b/net/bluetooth/hci_core.c
> @@ -1785,6 +1785,14 @@ int hci_dev_do_close(struct hci_dev *hdev)
> aosp_do_close(hdev);
> msft_do_close(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 (hdev->flush)
> hdev->flush(hdev);
>
> @@ -1798,14 +1806,6 @@ int hci_dev_do_close(struct hci_dev *hdev)
> clear_bit(HCI_INIT, &hdev->flags);
> }
>
> - 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);
> - }
> -
> /* flush cmd work */
> flush_work(&hdev->cmd_work);
Thanks for the patch and your help.
I've tried it, but it seems that it does not improve for me.
I'm still observing:
i500-pumpkin login: root
root@i500-pumpkin:~# hciconfig hci0 up
Can't init device hci0: Connection timed out (110)
Logs for this session:
dmesg: https://pastebin.com/iAFk5Tzi
ftrace: https://pastebin.com/kEMWSYrE
>
> Kai-Heng
>
>>
>> Mattijs
>> >
>> > Kai-Heng
>> >
>> >>
>> >> Thanks,
>> >> Mattijs Korpershoek
>> >>
>> >>
>> >> >
>> >> > Regards
>> >> >
>> >> > Marcel
next prev parent reply other threads:[~2021-08-03 8:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-14 7:14 [PATCH v2] Bluetooth: Shutdown controller after workqueues are flushed or cancelled Kai-Heng Feng
2021-05-14 8:12 ` [v2] " bluez.test.bot
2021-05-14 18:15 ` [PATCH v2] " Marcel Holtmann
2021-07-28 13:50 ` Mattijs Korpershoek
2021-07-28 15:25 ` Kai-Heng Feng
2021-07-30 11:40 ` Mattijs Korpershoek
2021-08-03 6:42 ` Kai-Heng Feng
2021-08-03 8:21 ` Mattijs Korpershoek [this message]
2021-08-04 14:42 ` Kai-Heng Feng
2021-08-05 6:55 ` Mattijs Korpershoek
2021-08-05 15:50 ` Kai-Heng Feng
2021-08-06 8:51 ` Mattijs Korpershoek
2021-08-06 15:36 ` Kai-Heng Feng
2021-08-09 9:19 ` Mattijs Korpershoek
[not found] ` <20210802030538.2023-1-hdanton@sina.com>
2021-08-03 6:45 ` Kai-Heng Feng
[not found] ` <20210803074722.2383-1-hdanton@sina.com>
2021-08-04 14:35 ` Kai-Heng Feng
[not found] ` <20210805030024.2603-1-hdanton@sina.com>
2021-08-05 3:44 ` Kai-Heng Feng
[not found] ` <20210805063536.2698-1-hdanton@sina.com>
2021-08-05 7:19 ` Kai-Heng Feng
2021-08-05 6:12 ` Hsin-Yi Wang
[not found] ` <20210805070114.2803-1-hdanton@sina.com>
2021-08-05 7:04 ` Hsin-Yi Wang
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