netdev - Re: [PATCH 0/1] can: usb: esd_usb2: Fix the interchange of CAN TX and RX error counters

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Date:   Thu, 26 Aug 2021 08:43:11 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Stefan Mätje <stefan.maetje@....eu>
Cc:     linux-can@...r.kernel.org, Wolfgang Grandegger <wg@...ndegger.com>,
        netdev@...r.kernel.org
Subject: Re: [PATCH 0/1] can: usb: esd_usb2: Fix the interchange of CAN TX
 and RX error counters

On 25.08.2021 23:52:26, Stefan Mätje wrote:
> In the driver for the esd CAN-USB/2 the CAN RX and TX error counters
> were fetched interchanged from the ESD_EV_CAN_ERROR_EXT message and
> therefore delivered wrong to the user.
> 
> To verify the now correct behavior call the candump tool to print CAN
> error frames with extra infos (including CAN RX and TX error counters)
> like "candump -e -x can4,0:0,#fffffffff".
> Then send a CAN frame to the open (no other node) but terminated CAN
> bus. The TX error counter must increase by 8 for each transmit attempt
> until CAN_STATE_ERROR_PASSIVE is reached.
> 
> Stefan Mätje (1):
>   can: usb: esd_usb2: Fix the interchange of the CAN RX and TX error
>     counters.
> 
>  drivers/net/can/usb/esd_usb2.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied to linux-can/testing.

Thanks,
Marc

> base-commit: cbe8cd7d83e251bff134a57ea4b6378db992ad82

BTW: Thanks for including a base-commit. Your base is
linux-can-next-for-5.15-20210825, but this is a bug-fix patch. It should
be based on the latest can pull request, can/master or net/master
instead. It doesn't matter here, as the patch applies without problems.

-- 
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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