linux-kernel - Re: [PATCH v1 1/1] gpiolib: Discourage to use formatting strings in line names

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Date: Mon, 6 May 2024 13:39:05 +0300
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Linus Walleij <linus.walleij@...aro.org>, Kent Gibson <warthog618@...il.com>
Cc: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, linux-gpio@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Bartosz Golaszewski <brgl@...ev.pl>, 
	Marek Behún <kabel@...nel.org>
Subject: Re: [PATCH v1 1/1] gpiolib: Discourage to use formatting strings in
 line names

On Mon, May 6, 2024 at 10:19 AM Linus Walleij <linus.walleij@...aroorg> wrote:
> On Sun, May 5, 2024 at 4:14 PM Andy Shevchenko
> <andy.shevchenko@...il.com> wrote:
>
> > Currently the documentation for line names allows to use %u inside
> > the alternative name. This is broken in character device approach
> > from day 1 and being in use solely in sysfs.
> >
> > Character device interface has a line number as a part of its address,
> > so the users better rely on it. Hence remove the misleading documentation.
> >
> > On top of that, there are no in-kernel users (out of 6, if I'm correct)
> > for such names and moreover if one exists it won't help in distinguishing
> > lines with the same naming as '%u' will also be in them and we will get
> > a warning in gpiochip_set_desc_names() for such cases.
> >
> > Signed-off-by: Andy Shevchenko <andy.shevchenko@...il.com>
>
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Thank you!

Meanwhile, Cc'ing to Kent as well.

-- 
With Best Regards,
Andy Shevchenko