linux-kernel - Re: [PATCH v2 1/2] Input: atkbd - Make it possible to apply atkbd.reset via kernel quirk

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Message-ID: <Y/2ueXSFK0iOR5M5@kroah.com>
Date:   Tue, 28 Feb 2023 08:34:17 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Werner Sembach <wse@...edocomputers.com>
Cc:     dmitry.torokhov@...il.com, swboyd@...omium.org,
        hdegoede@...hat.com, mkorpershoek@...libre.com,
        chenhuacai@...nel.org, wsa+renesas@...g-engineering.com,
        tiwai@...e.de, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] Input: atkbd - Make it possible to apply
 atkbd.reset via kernel quirk

On Mon, Feb 27, 2023 at 07:59:06PM +0100, Werner Sembach wrote:
> atkbd.reset was only a command line parameter. Some devices might have a
> known bug that can be worked around by just permanently applying this
> quirk.
> 
> This patch adds the ability to do this on the kernel level for known buggy
> devices.
> 
> Signed-off-by: Werner Sembach <wse@...edocomputers.com>
> Cc: stable@...r.kernel.org
> ---
>  drivers/input/keyboard/atkbd.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
> index 246958795f60..ef65c46c4efe 100644
> --- a/drivers/input/keyboard/atkbd.c
> +++ b/drivers/input/keyboard/atkbd.c
> @@ -1731,6 +1731,12 @@ static int __init atkbd_deactivate_fixup(const struct dmi_system_id *id)
>  	return 1;
>  }
>  
> +static int __init atkbd_reset_fixup(const struct dmi_system_id *id)
> +{
> +	atkbd_reset = true;
> +	return 1;

Why is this returning 1?  Who calls this?

And this should be a per-device attribute, not a global one, right?

thanks,

greg k-h