linux-kernel - Re: [PATCH] platform/x86: thinkpad_acpi: suppress warning about palm detection

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Message-ID: <CAHp75Vc66ZfRmOoOKJRODpV0mS2aZru=b-r0cr8SKYH=hm+W6Q@mail.gmail.com>
Date:   Fri, 12 Jan 2018 15:50:42 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     David Herrmann <dh.herrmann@...il.com>
Cc:     Platform Driver <platform-driver-x86@...r.kernel.org>,
        Henrique de Moraes Holschuh <ibm-acpi@....eng.br>,
        Andy Shevchenko <andy@...radead.org>,
        Darren Hart <dvhart@...radead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Matthew Thode <mthode@...ode.org>
Subject: Re: [PATCH] platform/x86: thinkpad_acpi: suppress warning about palm detection

On Fri, Jan 12, 2018 at 1:04 PM, David Herrmann <dh.herrmann@...il.com> wrote:
> This patch prevents the thinkpad_acpi driver from warning about 2 event
> codes returned for keyboard palm-detection. No behavioral changes,
> other than suppressing the warning in the kernel log. The events are
> still forwarded via acpi-netlink channels.
>
> We could, optionally, decide to forward the event through a
> input-switch on the tpacpi input device. However, so far no suitable
> input-code exists, and no similar drivers report such events. Hence,
> leave it an acpi event for now.
>
> Note that the event-codes are named based on empirical studies. On the
> ThinkPad X1 5th Gen the sensor can be found underneath the arrow key.
>

> Cc: Matthew Thode <mthode@...ode.org>

Shouldn't be Suggested-by or even Signed-off-by?

> Signed-off-by: David Herrmann <dh.herrmann@...il.com>


> +       case TP_HKEY_EV_PALM_DETECTED:
> +       case TP_HKEY_EV_PALM_UNDETECTED:

> +               /* palm detected hovering the keyboard, forward to user-space
> +                * via netlink for consumption */

Comment style is
/*
 * Multi line comment.
 * This is an example.
 */

> +               return true;

I can fix the latter, but I have to be sure all credits are given properly.

-- 
With Best Regards,
Andy Shevchenko