linux-kernel - Re: [PATCH 2/2] Input: edt-ft5x06

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Date:   Mon, 1 Jul 2019 13:41:24 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     linux-input <linux-input@...r.kernel.org>,
        Marco Felsch <m.felsch@...gutronix.de>,
        Benoit Parrot <bparrot@...com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] Input: edt-ft5x06 - simplify event reporting code

On Sun, Jun 30, 2019 at 10:05 AM Dmitry Torokhov
<dmitry.torokhov@...il.com> wrote:
>
> On Sun, Jun 23, 2019 at 10:59:18AM +0300, Andy Shevchenko wrote:
> > On Sun, Jun 23, 2019 at 9:31 AM Dmitry Torokhov
> > <dmitry.torokhov@...il.com> wrote:
> > >
> > > Now that input_mt_report_slot_state() returns true if slot is active we no
> > > longer need a temporary for the slot state.

> > > -               down = type != TOUCH_EVENT_UP;
> > >
> > >                 input_mt_slot(tsdata->input, id);
> > > -               input_mt_report_slot_state(tsdata->input, MT_TOOL_FINGER, down);
> >
> > > +               if (input_mt_report_slot_state(tsdata->input, MT_TOOL_FINGER,
> > > +                                              type != TOUCH_EVENT_UP))
> >
> > Can't we simple do somethink like
> > -               down = type != TOUCH_EVENT_UP;
> > +               down = input_mt_report_slot_state(tsdata->input,
> > MT_TOOL_FINGER, type != TOUCH_EVENT_UP);
>
> Why though? The temporary was needed so we did not have to repeat the
> expression for "contact down" condition, and now we do not need it. The
> whole change was done so that we cab remove the temporary...

I see. Thanks for explanation.

-- 
With Best Regards,
Andy Shevchenko