netdev - Re: [PATCH v5 0/7] can: refactoring of can-dev module and of Kbuild

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Date:   Tue, 7 Jun 2022 22:27:06 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Oliver Hartkopp <socketcan@...tkopp.net>
Cc:     Vincent MAILHOL <mailhol.vincent@...adoo.fr>,
        linux-can <linux-can@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Max Staudt <max@...as.org>, netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH v5 0/7] can: refactoring of can-dev module and of Kbuild

On 07.06.2022 22:12:46, Oliver Hartkopp wrote:
> So what about:
> 
>   symbol: CONFIG_NETDEVICES
>   |
>   +-> CAN Device Drivers
>       symbol: CONFIG_CAN_DEV
>       |
>       +-> software/virtual CAN device drivers
>       |   (at time of writing: slcan, vcan, vxcan)
>       |
>       +-> hardware CAN device drivers with Netlink support
>           symbol: CONFIG_CAN_NETLINK (matches previous CONFIG_CAN_DEV)
>           |
>           +-> CAN bit-timing calculation (optional for all drivers)
>           |   symbol: CONFIG_CAN_BITTIMING
>           |
>           +-> CAN rx offload (optional but selected by some drivers)
>           |   symbol: CONFIG_CAN_RX_OFFLOAD
>           |
>           +-> CAN devices drivers
>               (some may select CONFIG_CAN_RX_OFFLOAD)
> 
> (I also added 'hardware' to CAN device drivers with Netlink support) to have
> a distinction to 'software/virtual' CAN device drivers)

The line between hardware and software/virtual devices ist blurry, the
new can327 driver uses netlink and the slcan is currently being
converted....

> At least this would help me to understand the new configuration setup.

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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