Re: [PATCH] Bluetooth: core: Fix deadlock due to `cancel_work_sync(&hdev->power_on)` from hci_power_on_sync.

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Subject: Re: [PATCH] Bluetooth: core: Fix deadlock due to `cancel_work_sync(&hdev->power_on)` from hci_power_on_sync.
From: Jakub Kicinski <kuba@xxxxxxxxxx>
Date: Tue, 5 Jul 2022 12:13:27 -0700
Cc: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx>, Vasyl Vavrychuk <vasyl.vavrychuk@xxxxxxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, "open list:NETWORKING [GENERAL]" <netdev@xxxxxxxxxxxxxxx>, "linux-bluetooth@xxxxxxxxxxxxxxx" <linux-bluetooth@xxxxxxxxxxxxxxx>, Max Krummenacher <max.oss.09@xxxxxxxxx>, Mateusz Jończyk <mat.jonczyk@xxxxx>, Marcel Holtmann <marcel@xxxxxxxxxxxx>, max.krummenacher@xxxxxxxxxxx, Johan Hedberg <johan.hedberg@xxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Paolo Abeni <pabeni@xxxxxxxxxx>, Eric Dumazet <edumazet@xxxxxxxxxx>
In-reply-to: <CABBYNZL9yir6tbEnwu8sQMnNG+h-8bMdnkK1Tsqo8AOtc5goGw@mail.gmail.com>
References: <20220614181706.26513-1-max.oss.09@gmail.com> <20220705125931.3601-1-vasyl.vavrychuk@opensynergy.com> <20220705151446.GA28605@francesco-nb.int.toradex.com> <CABBYNZJDkmU_Fgfszrau9CK6DSQM2xGaGwfVyVkjNo7MVtBd8w@mail.gmail.com> <20220705113829.4af55980@kernel.org> <CABBYNZL9yir6tbEnwu8sQMnNG+h-8bMdnkK1Tsqo8AOtc5goGw@mail.gmail.com>

On Tue, 5 Jul 2022 12:00:43 -0700 Luiz Augusto von Dentz wrote:
> > > Ive rebased the patch on top of bluetooth-next and fixed the hash,
> > > lets see if passes CI I might just go ahead and push it.  
> >
> > Thanks for pushing it along, the final version can got thru bluetooth ->  
> > -> net and into 5.19, right?  
> 
> Yep, I will send the pull request in a moment.

Perfect, thank you!!

References:
- [PATCH v1] Revert "Bluetooth: core: Fix missing power_on work cancel on HCI close"
  - From: Max Krummenacher
- [PATCH] Bluetooth: core: Fix deadlock due to `cancel_work_sync(&hdev->power_on)` from hci_power_on_sync.
  - From: Vasyl Vavrychuk
- Re: [PATCH] Bluetooth: core: Fix deadlock due to `cancel_work_sync(&hdev->power_on)` from hci_power_on_sync.
  - From: Francesco Dolcini
- Re: [PATCH] Bluetooth: core: Fix deadlock due to `cancel_work_sync(&hdev->power_on)` from hci_power_on_sync.
  - From: Luiz Augusto von Dentz
- Re: [PATCH] Bluetooth: core: Fix deadlock due to `cancel_work_sync(&hdev->power_on)` from hci_power_on_sync.
  - From: Jakub Kicinski
- Re: [PATCH] Bluetooth: core: Fix deadlock due to `cancel_work_sync(&hdev->power_on)` from hci_power_on_sync.
  - From: Luiz Augusto von Dentz

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