linux-kernel - Re: [PATCH v2] gpio: consumer: new virtual driver

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Message-ID: <ZNZGdyQ6FuBtDT47@smile.fi.intel.com>
Date:   Fri, 11 Aug 2023 17:32:23 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Kent Gibson <warthog618@...il.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v2] gpio: consumer: new virtual driver

On Fri, Aug 11, 2023 at 03:39:08PM +0200, Bartosz Golaszewski wrote:
> On Thu, Aug 10, 2023 at 4:53 PM Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> wrote:

...

> > > > This can be avoided by
> > > >
> > > >         key = kstrndup(skip_spaces(page), count, GFP_KERNEL);
> > > >
> > > > no?
> > > >
> > >
> > > No, because we also want to remove the trailing spaces and newlines.
> > > But if you have a different suggestion with existing helpers, let me
> > > know. I didn't find any.
> >
> > kstrto*() are newline friendly. The rest as you noted can be covered with
> > sysfs_streq() / sysfs_match_string().
> 
> It's a kstrndup() not a kstrtosomething(). It's not newline friendly.

Right, I messed that up when replying.

-- 
With Best Regards,
Andy Shevchenko