linux-kernel - Re: [PATCH] gpio: sim: replace memmove() + strstrip() with skip

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Date:   Tue, 15 Aug 2023 20:45:49 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Kent Gibson <warthog618@...il.com>, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH] gpio: sim: replace memmove() + strstrip() with
 skip_spaces() + strim()

On Tue, Aug 15, 2023 at 12:34 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> On Sat, Aug 12, 2023 at 08:57:48PM +0200, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> >
> > Turns out we can avoid the memmove() by using skip_spaces() and strim().
> > We did that in gpio-consumer, let's do it in gpio-sim.
>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
>
> ...
>
> > +     strim(trimmed);
> >
> > -     return dup;
> > +     return trimmed;
>
> Can be also
>
>         return strim(trimmed);
>
> If it's only about \n replacement, then
>
>         return strreplace(trimmed, '\n', '\0');

No, the user is free to pass all kinds of whitespaces after the
string. I'll queue it with the above change. Thanks.

Bart

>
> would work and in the next release be changed to kstrdup_and_replace().
>
> >  }
>
> --
> With Best Regards,
> Andy Shevchenko
>
>