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Message-ID: <20221205084556.etpo2xufbsl5753d@pengutronix.de>
Date: Mon, 5 Dec 2022 09:45:56 +0100
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: Max Staudt <max@...as.org>
Cc: Wolfgang Grandegger <wg@...ndegger.com>,
Vincent Mailhol <vincent.mailhol@...il.com>,
Oliver Neukum <oneukum@...e.com>, linux-kernel@...r.kernel.org,
"Jiri Slaby (SUSE)" <jirislaby@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, linux-can@...r.kernel.org,
netdev@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] can: can327: Flush tx_work on ldisc .close()
On 03.12.2022 01:01:48, Max Staudt wrote:
> Additionally, remove it from .ndo_stop().
>
> This ensures that the worker is not called after being freed, and that
> the UART TX queue remains active to send final commands when the netdev
> is stopped.
>
> Thanks to Jiri Slaby for finding this in slcan:
>
> https://lore.kernel.org/linux-can/20221201073426.17328-1-jirislaby@kernel.org/
>
> A variant of this patch for slcan, with the flush in .ndo_stop() still
> present, has been tested successfully on physical hardware:
>
> https://bugzilla.suse.com/show_bug.cgi?id=1205597
>
> Fixes: 43da2f07622f ("can: can327: CAN/ldisc driver for ELM327 based OBD-II adapters")
> Cc: "Jiri Slaby (SUSE)" <jirislaby@...nel.org>
> Cc: Max Staudt <max@...as.org>
> Cc: Wolfgang Grandegger <wg@...ndegger.com>
> Cc: Marc Kleine-Budde <mkl@...gutronix.de>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Eric Dumazet <edumazet@...gle.com>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: Paolo Abeni <pabeni@...hat.com>
> Cc: linux-can@...r.kernel.org
> Cc: netdev@...r.kernel.org
> Cc: stable@...r.kernel.org
> Signed-off-by: Max Staudt <max@...as.org>
Applied to linux-can.
regards,
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Embedded Linux | https://www.pengutronix.de |
Vertretung West/Dortmund | Phone: +49-231-2826-924 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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