linux-kernel - Re: [PATCH v7 1/4] bitops: Introduce the the for_each_set

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Date:   Thu, 4 Jun 2020 00:59:19 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Rikard Falkeborn <rikard.falkeborn@...il.com>
Cc:     Emil Velikov <emil.l.velikov@...il.com>,
        Syed Nayyar Waris <syednwaris@...il.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Kees Cook <keescook@...omium.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        William Breathitt Gray <vilhelm.gray@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v7 1/4] bitops: Introduce the the for_each_set_clump macro

On Thu, Jun 4, 2020 at 12:58 AM Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
>
> On Thu, Jun 4, 2020 at 12:53 AM Rikard Falkeborn
> <rikard.falkeborn@...il.com> wrote:
> > On Wed, Jun 03, 2020 at 11:49:37AM +0300, Andy Shevchenko wrote:
> > > On Tue, Jun 2, 2020 at 10:01 PM Rikard Falkeborn
> > > <rikard.falkeborn@...il.com> wrote:
>
> ...
>
> > I'd be very surprised if compilers warned for explicit casts but  I'll
> > send a proper patch soon to let the build robot try it.
>
> I noticed that you should have received kbuild bot report about a
> driver where it appears.
>
> You patch broke all cases where (l) = 0 and (h) is type of unsigned
> (not a const from compiler point of view).

I will ask to revert for rc1 if there will be no fix.


-- 
With Best Regards,
Andy Shevchenko