linux-kernel - Re: [PATCH v1 3/8] gpiolib: Warn on drivers still using static gpiobase allocation

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Message-ID: <CAMuHMdX0J=iNa8uLEq1KTG6gjr4M+WwwHsLsHQ_fWDDLky7sZg@mail.gmail.com>
Date:   Wed, 31 Aug 2022 10:00:44 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Keerthy <j-keerthy@...com>, Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        Jonathan Corbet <corbet@....net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Linux Documentation List <linux-doc@...r.kernel.org>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>
Subject: Re: [PATCH v1 3/8] gpiolib: Warn on drivers still using static
 gpiobase allocation

Hi Christophe,

On Wed, Aug 31, 2022 at 7:39 AM Christophe Leroy
<christophe.leroy@...roup.eu> wrote:
> Le 30/08/2022 à 22:14, Andy Shevchenko a écrit :
> > On Mon, Aug 29, 2022 at 7:18 PM Christophe Leroy
> > <christophe.leroy@...roup.eu> wrote:
> >> In the preparation of getting completely rid of static gpiobase
> >> allocation in the future, emit a warning in drivers still doing so.
> >
> > ...
> >
> >> +               dev_warn(&gdev->dev, "Static allocation of GPIO base is "
> >> +                                    "deprecated, use dynamic allocation.");
> >
> > First of all, do not split string literals. Second, you forgot '\n'.
>
> Then I get a line longer than 100 chars, is that acceptable ?

Yes it is.  It is a much worse user experience if

    git grep "Static allocation of GPIO base is deprecated"

does not let you find the line that does fit in 100 chars ;-)

> Since commit 5fd29d6ccbc9 ("printk: clean up handling of log-levels and
> newlines"), "\n" are just visual pollution, aren't they ?

The convention is to always add it.  See also commit a0cba2179ea4c182
("Revert "printk: create pr_<level> functions"").

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds