linux-kernel - Re: [PATCH v3 2/2] kbuild: rename KBUILD_ENABLE_EXTRA_GCC_CHECKS to KBUILD_EXTRA

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Message-ID: <CA+icZUVN1zRi5P8PPWMjXoXwtSCkbzTFNreYXi+0HtTjPnfkTQ@mail.gmail.com>
Date:   Wed, 4 Sep 2019 11:58:05 +0200
From:   Sedat Dilek <sedat.dilek@...il.com>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Nathan Chancellor <natechancellor@...il.com>,
        Jonathan Corbet <corbet@....net>,
        Michal Marek <michal.lkml@...kovi.net>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        linux-doc@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] kbuild: rename KBUILD_ENABLE_EXTRA_GCC_CHECKS to KBUILD_EXTRA_WARN

On Wed, Sep 4, 2019 at 10:07 AM Sedat Dilek <sedat.dilek@...il.com> wrote:
>
> On Wed, Sep 4, 2019 at 8:58 AM Sedat Dilek <sedat.dilek@...il.com> wrote:
> >
> > On Tue, Sep 3, 2019 at 11:50 PM Nick Desaulniers
> > <ndesaulniers@...gle.com> wrote:
> > >
> > > On Sat, Aug 31, 2019 at 9:26 AM Masahiro Yamada
> > > <yamada.masahiro@...ionext.com> wrote:
> > > >
> > > > KBUILD_ENABLE_EXTRA_GCC_CHECKS started as a switch to add extra warning
> > > > options for GCC, but now it is a historical misnomer since we use it
> > > > also for Clang, DTC, and even kernel-doc.
> > >
> > > Thanks for the patch!
> > > Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>
> > >
> >
> > Thanks for the patch.
> > I like the backward compatibility and am OK with pointing to 'make
> > --help' for the documentation part (KISS - Keep It Simple and
> > Short/Stupid).
> >
> > Reviewed-by: Sedat Dilek <sedat.dilek@...il.com>
>
> If you will do a next version...
>
> - @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
> + @echo  '  make W=n   [targets] Enable extra checks, n=1,2,3 where'
>
> ...clarify on extra checks for compiler...
>
> + @echo  '  make W=n   [targets] Enable extra *compiler* checks, n=1,2,3 where'
>

+KBUILD_EXTRA_WARN
+-----------------
+Specify the extra build checks. The same value can be assigned by passing
+W=... from the command line.

For consistency reasons might be better:

- @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
+ @echo  '  make W=n   [targets] Enable extra build checks, n=1,2,3 where'

- Sedat -