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Date:   Mon, 4 Dec 2023 17:20:32 +0200
From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Arnd Bergmann <arnd@arndb.de>
Cc:     Naresh Kamboju <naresh.kamboju@linaro.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        open list <linux-kernel@vger.kernel.org>,
        lkft-triage@lists.linaro.org,
        Linux Regressions <regressions@lists.linux.dev>,
        "moderated list:ARM/Mediatek SoC..." 
        <linux-mediatek@lists.infradead.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>, sean.wang@kernel.org,
        Russell King <linux@armlinux.org.uk>
Subject: Re: arm: gcc-8: drivers/pinctrl/mediatek/../core.h:211:21: error:
 initializer element is not constant (struct group_desc)
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On Mon, Dec 04, 2023 at 04:11:11PM +0100, Arnd Bergmann wrote:
> On Mon, Dec 4, 2023, at 13:08, Naresh Kamboju wrote:
> > Following build errors noticed on Linux next-20231204 tag with gcc-8 toolchain
> > for arm and arm64.
> >
> > ## Test Regressions (compared to next-20231201)
> > * arm, build
> >   - gcc-8-defconfig
> >
> > * arm64, build
> >   - gcc-8-defconfig
> >
> > Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> >
> > Build log arm and arm64:
> > ------------
> > In file included from drivers/pinctrl/mediatek/pinctrl-moore.h:21,
> >                  from drivers/pinctrl/mediatek/pinctrl-mt7623.c:11:
> > drivers/pinctrl/mediatek/../core.h:211:21: error: initializer element
> > is not constant
> >  (struct group_desc) {      \
> 
> This apparently comes from c0c8dd0a7773 ("pinctrl: core: Add a
> convenient define PINCTRL_GROUP_DESC()") and following patches
> from Andy Shevchenko (added to Cc).
> 
> I also checked different compiler versions and found that the
> new code works fine with gcc-13.2.0, but not with gcc-12 or
> older.

Thank you, Linus already dropped problematic changes.

-- 
With Best Regards,
Andy Shevchenko