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From: Pavel Pisa <pisa@cmp.felk.cvut.cz>
To: Vikram Garhwal <fnu.vikram@xilinx.com>
Cc: Marek Vasut <marex@denx.de>, Jiri Novak <jnovak@fel.cvut.cz>,
	Oliver Hartkopp <socketcan@hartkopp.net>,
	Deniz Eren <deniz.eren@icloud.com>,
	qemu-devel@nongnu.org, Markus Armbruster <armbru@redhat.com>,
	Oleksij Rempel <o.rempel@pengutronix.de>,
	Konrad Frederic <frederic.konrad@adacore.com>,
	Jan Kiszka <jan.kiszka@siemens.com>,
	Jan Charvat <charvj10@fel.cvut.cz>,
	Stefan Hajnoczi <stefanha@gmail.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Ondrej Ille <ondrej.ille@gmail.com>
Subject: Re: [PATCH v1 3/6] net/can: Add can_dlc2len and can_len2dlc for CAN FD.
Date: Thu, 3 Sep 2020 08:12:42 +0200	[thread overview]
Message-ID: <202009030812.42855.pisa@cmp.felk.cvut.cz> (raw)
In-Reply-To: <20200903054329.GA405867@xilinx.com>

Hello Vikram,

On Thursday 03 of September 2020 07:43:34 Vikram Garhwal wrote:
> On Tue, Jul 14, 2020 at 02:20:16PM +0200, pisa@cmp.felk.cvut.cz wrote:
> Hi Pavel,
>
> > From: Jan Charvat <charvj10@fel.cvut.cz>
> >
> > Signed-off-by: Jan Charvat <charvj10@fel.cvut.cz>
> > Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
> > ---
> >  include/net/can_emu.h |  4 ++++
> >  net/can/can_core.c    | 36 ++++++++++++++++++++++++++++++++++++
> >  2 files changed, 40 insertions(+)
> >
> > diff --git a/include/net/can_emu.h b/include/net/can_emu.h
> > index c6164dcfb4..7d395fbb9b 100644
> > --- a/include/net/can_emu.h
> > +++ b/include/net/can_emu.h
> > @@ -127,4 +127,8 @@ int can_bus_client_set_filters(CanBusClientState *,
> >                                 const struct qemu_can_filter *filters,
> >                                 size_t filters_cnt);
> >
> > +uint8_t can_dlc2len(uint8_t can_dlc);
> > +
> > +uint8_t can_len2dlc(uint8_t len);
> > +
>
> These function are aimed for canfd. Perhaps rename these to canfd_dlc2len
> and canfd_len2dlc for better distinction?
> Rest of the patch looks good to me.

I do not insits on name. But function correspond 1:1 to the Linux
kernel ones

https://elixir.bootlin.com/linux/latest/source/drivers/net/can/dev.c#L34

These functions/tables are very short, but may it be, we should add comment
about their origin. This part of original file is Oliver Hartkopp
contribution

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/net/can/dev.c?h=v5.9-rc3&id=1e0625facab2e871472472b7df87d8fbe6caf75a

some other helpers are from Wolfgang Grandegger and me.

Best wishes,

Pavel


  reply	other threads:[~2020-09-03  6:17 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-14 12:20 [PATCH v1 0/6] CTU CAN FD core support pisa
2020-07-14 12:20 ` [PATCH v1 1/6] net/can: Initial host SocketCan support for CAN FD pisa
2020-09-01 20:01   ` Vikram Garhwal
2020-09-02  7:51     ` Pavel Pisa
2020-09-03  5:20       ` Vikram Garhwal
2020-09-03  5:29         ` Vikram Garhwal
2020-07-14 12:20 ` [PATCH v1 2/6] hw/net/can: sja1000 ignore CAN FD frames pisa
2020-09-01 17:07   ` Vikram Garhwal
2020-07-14 12:20 ` [PATCH v1 3/6] net/can: Add can_dlc2len and can_len2dlc for CAN FD pisa
2020-09-03  5:43   ` Vikram Garhwal
2020-09-03  6:12     ` Pavel Pisa [this message]
2020-09-03  6:38       ` Vikram Garhwal
2020-07-14 12:20 ` [PATCH v1 4/6] hw/net/can/ctucafd: Add CTU CAN FD core register definitions pisa
2020-07-14 12:20 ` [PATCH v1 5/6] hw/net/can: CTU CAN FD IP open hardware core emulation pisa
2020-07-24  9:46   ` Pavel Pisa
2020-07-14 12:20 ` [PATCH v1 6/6] hw/net/can: Documentation for " pisa
2020-07-14 12:47 ` [PATCH v1 0/6] CTU CAN FD core support no-reply
2020-07-14 13:45   ` [PATCH v1 0/6] CTU CAN FD core support - patchew report Pavel Pisa
2020-07-14 12:48 ` [PATCH v1 0/6] CTU CAN FD core support no-reply
2020-07-30 15:29 ` Markus Armbruster

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