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Message-Id: <ad6afb94-e221-4adb-a942-af59f5d7b92f@app.fastmail.com>
Date: Mon, 04 Dec 2023 16:11:11 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: "Naresh Kamboju" <naresh.kamboju@...aro.org>,
"Linux ARM" <linux-arm-kernel@...ts.infradead.org>,
"open list" <linux-kernel@...r.kernel.org>,
lkft-triage@...ts.linaro.org,
"Linux Regressions" <regressions@...ts.linux.dev>,
"moderated list:ARM/Mediatek SoC..."
<linux-mediatek@...ts.infradead.org>,
"open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
"Andy Shevchenko" <andriy.shevchenko@...ux.intel.com>
Cc: "Linus Walleij" <linus.walleij@...aro.org>, sean.wang@...nel.org,
"Russell King" <linux@...linux.org.uk>
Subject: Re: arm: gcc-8: drivers/pinctrl/mediatek/../core.h:211:21: error: initializer
element is not constant (struct group_desc)
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@...aro.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.
Arnd
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