linux-kernel - Re: Calculating array sizes in C - was: Re: Build regressions/improvements in v6.2-rc1

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Message-ID: <c1d233b9-bc85-dce9-ffa0-eb3170602c6c@physik.fu-berlin.de>
Date:   Fri, 20 Jan 2023 09:49:00 +0100
From:   John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To:     "Michael.Karcher" <Michael.Karcher@...berlin.de>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        linux-wireless@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-sh@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        linuxppc-dev@...ts.ozlabs.org, kasan-dev@...glegroups.com,
        linux-xtensa@...ux-xtensa.org,
        Michael Karcher <kernel@...rcher.dialup.fu-berlin.de>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: Calculating array sizes in C - was: Re: Build
 regressions/improvements in v6.2-rc1

Hi Michael!

On 1/19/23 23:11, Michael.Karcher wrote:
> I suggest to file a bug against gcc complaining about a "spurious warning",
> and using "-Werror -Wno-error-sizeof-pointer-div" until gcc is adapted to
> not emit the warning about the pointer division if the result is not used.

Could you post a kernel patch for that? I would be happy to test it on my
SH-7785CLR board. Also, I'm going to file a bug report against GCC.

Adrian

-- 
  .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
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