netdev - Re: [PATCH] can: esd_usb: Add support for CAN_CTRLMODE_BERR

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Date:   Tue, 4 Apr 2023 08:14:49 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Frank Jungclaus <frank.jungclaus@....eu>
Cc:     linux-can@...r.kernel.org, Wolfgang Grandegger <wg@...ndegger.com>,
        Vincent Mailhol <mailhol.vincent@...adoo.fr>,
        Stefan Mätje <stefan.maetje@....eu>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] can: esd_usb: Add support for CAN_CTRLMODE_BERR_REPORTING

On 30.03.2023 20:44:46, Frank Jungclaus wrote:
> Announce that the driver supports CAN_CTRLMODE_BERR_REPORTING by means
> of priv->can.ctrlmode_supported. Until now berr reporting always has
> been active without taking care of the berr-reporting parameter given
> to an "ip link set ..." command.
> 
> Additionally apply some changes to function esd_usb_rx_event():
> - If berr reporting is off and it is also no state change, then
> immediately return.
> - Unconditionally (even in case of the above "immediate return") store
> tx- and rx-error counters, so directly use priv->bec.txerr and
> priv->bec.rxerr instead of intermediate variables.
> - Not directly related, but to better point out the linkage between a
> failed alloc_can_err_skb() and stats->rx_dropped++:
> Move the increment of the rx_dropped statistic counter (back) to
> directly behind the err_skb allocation.
> 
> Signed-off-by: Frank Jungclaus <frank.jungclaus@....eu>

Applied to linux-can-next

Thanks,
Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde          |
Embedded Linux                   | https://www.pengutronix.de |
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