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From:   Andy Shevchenko <andy.shevchenko@gmail.com>
Date:   Tue, 11 May 2021 15:17:01 +0300
Message-ID: <CAHp75VdVubL-_kLV80Z9cVDpjYb_HT4ivw3t-QUj0594whL=wQ@mail.gmail.com>
Subject: Re: [PATCH 11/12] tools: sync lib/find_bit implementation
To:     Rikard Falkeborn <rikard.falkeborn@gmail.com>
Cc:     Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
        Yury Norov <yury.norov@gmail.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Rasmus Villemoes <linux@rasmusvillemoes.dk>,
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        Alexey Klimov <aklimov@redhat.com>,
        Arnd Bergmann <arnd@arndb.de>, David Sterba <dsterba@suse.com>,
        Dennis Zhou <dennis@kernel.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Jianpeng Ma <jianpeng.ma@intel.com>,
        Joe Perches <joe@perches.com>,
        John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
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        Yoshinori Sato <ysato@users.sourceforge.jp>
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On Tue, May 11, 2021 at 1:36 PM Rikard Falkeborn
<rikard.falkeborn@gmail.com> wrote:
>
> On Tue, May 11, 2021 at 10:28:50AM +0300, Andy Shevchenko wrote:
> > On Tue, May 11, 2021 at 12:51:58AM +0200, Rikard Falkeborn wrote:
> > > On Mon, May 10, 2021 at 06:44:44PM +0300, Andy Shevchenko wrote:
> >
> > ...
> >
> > > Does the following work for you? For simplicity, I copied__is_constexpr from
> > > include/linux/minmax.h (which isn't available in tools/). A proper patch
> > > would reuse __is_constexpr (possibly refactoring it to a separate
> > > header since bits.h including minmax.h for that only seems smelly)
> >
> > I think we need to have it in something like compiler.h (top level). Under
> > 'top level' I meant something with the function as of compiler.h but with
> > Linuxisms rather than compiler attributes or so.
>
> Right. Will you send a patch, or do you want me to?

Please, go ahead!
I'm in a vacation mood (tomorrow it will start)

> It would be good to get confirmation that __is_constexpr solves the
> build failure.

-- 
With Best Regards,
Andy Shevchenko