netdev - Re: [RFC PATCH v3 8/9] can: slcan: add support to set bit time register (btr)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CABGWkvrTga4yyx0Fh99NKkj4vJPy_goOAFGaB1BCj6xONqBCAg@mail.gmail.com>
Date:   Wed, 27 Jul 2022 20:23:50 +0200
From:   Dario Binacchi <dario.binacchi@...rulasolutions.com>
To:     Max Staudt <max@...as.org>
Cc:     Marc Kleine-Budde <mkl@...gutronix.de>,
        linux-kernel@...r.kernel.org, linux-can@...r.kernel.org,
        Oliver Hartkopp <socketcan@...tkopp.net>,
        michael@...rulasolutions.com,
        Amarula patchwork <linux-amarula@...rulasolutions.com>,
        Jeroen Hofstee <jhofstee@...tronenergy.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        netdev@...r.kernel.org,
        Vincent Mailhol <mailhol.vincent@...adoo.fr>
Subject: Re: [RFC PATCH v3 8/9] can: slcan: add support to set bit time
 register (btr)

Hello Marc and Max,

On Wed, Jul 27, 2022 at 7:33 PM Max Staudt <max@...as.org> wrote:
>
> On Wed, 27 Jul 2022 19:28:45 +0200
> Dario Binacchi <dario.binacchi@...rulasolutions.com> wrote:
>
> > On Wed, Jul 27, 2022 at 7:21 PM Marc Kleine-Budde <mkl@...gutronix.de> wrote:
> > >
> > > Ok - We avoided writing bit timing registers from user space into the
> > > hardware for all existing drivers. If there isn't a specific use case,
> > > let's skip this patch. If someone comes up with a use case we can think
> > > of a proper solution.
> >
> > Ok. So do I also remove the 7/9 "ethtool: add support to get/set CAN
> > bit time register"
> > patch ?
>
> If I may answer as well - IMHO, yes.
>
> Unless we know that BTR is something other than just a different way to
> express the bitrate, I'd skip it, yes. Because bitrate is already
> handled by other, cross-device mechanisms.

Thanks to both of you for the explanations.
Regards,

Dario

>
>
> Max

-- 

Dario Binacchi

Embedded Linux Developer

dario.binacchi@...rulasolutions.com

__________________________________


Amarula Solutions SRL

Via Le Canevare 30, 31100 Treviso, Veneto, IT

T. +39 042 243 5310
info@...rulasolutions.com

www.amarulasolutions.com