From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Vincent MAILHOL <mailhol.vincent@wanadoo.fr>
Cc: linux-can <linux-can@vger.kernel.org>,
"Stefan Mätje" <Stefan.Maetje@esd.eu>,
netdev <netdev@vger.kernel.org>,
"open list" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v5 1/7] can: netlink: allow user to turn off unsupported features
Date: Thu, 19 Aug 2021 12:07:40 +0200 [thread overview]
Message-ID: <20210819100740.l4ci5taj6m27x2am@pengutronix.de> (raw)
In-Reply-To: <CAMZ6RqL0uT7tNNxRjAYaUNrnsSV6smMQvowttLaqjUrOZ5V1Fg@mail.gmail.com>
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On 19.08.2021 18:24:27, Vincent MAILHOL wrote:
> On Thu. 19 Aug 2021 at 16:45, Marc Kleine-Budde <mkl@pengutronix.de> wrote:
> > On 15.08.2021 12:32:42, Vincent Mailhol wrote:
> > > The sanity checks on the control modes will reject any request related
> > > to an unsupported features, even turning it off.
> > >
> > > Example on an interface which does not support CAN-FD:
> > >
> > > $ ip link set can0 type can bitrate 500000 fd off
> > > RTNETLINK answers: Operation not supported
> > >
> > > This patch lets such command go through (but requests to turn on an
> > > unsupported feature are, of course, still denied).
> > >
> > > Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
> >
> > I'm planing to send a pull request to net-next today. I want to do some
> > more tests with this series
>
> Ack, I am also preparing a new version. But first, I am just
> waiting for your reply on the tdc-mode {auto, manual, off}. :)
I want to do some proper testing, if it's now working as I'm expecting,
before continuing the discussion. :D
> > but this patch is more or less unrelated,
> > so I can take it in this PR, should I?
>
> FYI, the reason to add it to the series is that when setting TDC to
> off, the ip tool sets both CAN_CTRLMODE_TDC_AUTO and
> CAN_CTRLMODE_TDC_MANUAL to zero (which the corresponding bits in
> can_ctrlmode::mask set to 1). Without this patch, netlink would
> return -ENOTSUPP if the driver only supported one of
> CAN_CTRLMODE_TDC_{AUTO,MANUAL}.
Oh, I see.
> Regardless, this patch makes sense as a standalone, I am fine if
> you include it in your PR.
Why not, reduces the patch amount on your side :)
> Also, if you want, you can include the latest patch of the series as well:
> https://lore.kernel.org/linux-can/20210815033248.98111-8-mailhol.vincent@wanadoo.fr/
>
> It's a comment fix, it should be pretty harmless.
Ok, makes sense.
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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next prev parent reply other threads:[~2021-08-19 10:07 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-15 3:32 [PATCH v5 0/7] add the netlink interface for CAN-FD Transmitter Delay Compensation (TDC) Vincent Mailhol
2021-08-15 3:32 ` [PATCH v5 1/7] can: netlink: allow user to turn off unsupported features Vincent Mailhol
2021-08-19 7:45 ` Marc Kleine-Budde
2021-08-19 9:24 ` Vincent MAILHOL
2021-08-19 10:07 ` Marc Kleine-Budde [this message]
2021-08-15 3:32 ` [PATCH v5 2/7] can: bittiming: allow TDC{V,O} to be zero and add can_tdc_const::tdc{v,o,f}_min Vincent Mailhol
2021-08-16 8:42 ` Marc Kleine-Budde
2021-08-16 10:24 ` Vincent MAILHOL
2021-08-16 12:25 ` Marc Kleine-Budde
2021-08-16 12:33 ` Marc Kleine-Budde
2021-08-16 13:43 ` Marc Kleine-Budde
2021-08-16 15:49 ` Vincent MAILHOL
2021-08-16 16:04 ` Vincent MAILHOL
2021-08-17 1:12 ` Vincent MAILHOL
2021-08-17 20:01 ` Marc Kleine-Budde
2021-08-18 9:22 ` Vincent MAILHOL
2021-08-18 12:29 ` Marc Kleine-Budde
2021-08-18 14:17 ` Vincent MAILHOL
2021-08-20 6:12 ` Vincent MAILHOL
2021-08-16 14:10 ` Vincent MAILHOL
2021-08-16 14:30 ` Marc Kleine-Budde
2021-08-17 9:43 ` Marc Kleine-Budde
2021-08-16 13:49 ` Stefan Mätje
2021-08-16 15:56 ` Vincent MAILHOL
2021-08-15 3:32 ` [PATCH v5 3/7] can: bittiming: change unit of TDC parameters to clock periods Vincent Mailhol
2021-08-15 3:32 ` [PATCH v5 4/7] can: dev: add can_tdc_get_relative_tdco() helper function Vincent Mailhol
2021-08-16 11:27 ` Marc Kleine-Budde
2021-08-15 3:32 ` [PATCH v5 5/7] can: netlink: add interface for CAN-FD Transmitter Delay Compensation (TDC) Vincent Mailhol
2021-08-17 19:55 ` Marc Kleine-Budde
2021-08-18 8:08 ` Vincent MAILHOL
2021-08-18 8:19 ` Marc Kleine-Budde
2021-08-18 8:37 ` Vincent MAILHOL
2021-08-18 8:43 ` Marc Kleine-Budde
2021-08-15 3:32 ` [PATCH v5 6/7] can: netlink: add can_priv::do_get_auto_tdcv() to retrieve tdcv from device Vincent Mailhol
2021-08-15 3:32 ` [PATCH v5 7/7] can: etas_es58x: clean-up documentation of struct es58x_fd_tx_conf_msg Vincent Mailhol
2021-08-19 10:08 ` Marc Kleine-Budde
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