linux-kernel - Re: [PATCH 2/3] bus: add Wiegand bus driver

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Message-ID: <Y7WHjD4psjgAAyPd@kroah.com>
Date:   Wed, 4 Jan 2023 15:05:00 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Martin Zaťovič <m.zatovic1@...il.com>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        mani@...nel.org, hemantk@...eaurora.org, quic_jhugo@...cinc.com,
        andersson@...nel.org, Michael.Srba@...nam.cz, arnd@...db.de,
        dipenp@...dia.com, bvanassche@....org, iwona.winiarska@...el.com,
        ogabbay@...nel.org, tzimmermann@...e.de, fmdefrancesco@...il.com,
        jason.m.bills@...ux.intel.com, jae.hyun.yoo@...ux.intel.com,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org
Subject: Re: [PATCH 2/3] bus: add Wiegand bus driver

On Wed, Jan 04, 2023 at 02:34:13PM +0100, Martin Zaťovič wrote:
> +struct boardinfo {
> +	struct list_head list;
> +	struct wiegand_board_info board_info;
> +};
> +
> +static LIST_HEAD(board_list);
> +static LIST_HEAD(wiegand_controller_list);

Why are all of these needed at all?  Shouldn't the driver core handle
the bus list logic for you?  Why do you need a separate static list as
well?

thanks,

greg k-h