linux-kernel - Re: [PATCH 5.10 000/238] 5.10.214-rc1 review

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Date: Mon, 25 Mar 2024 13:47:02 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: Sasha Levin <sashal@...nel.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org, 
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org, linux@...ck-us.net, 
	shuah@...nel.org, patches@...nelci.org, lkft-triage@...ts.linaro.org, 
	florian.fainelli@...adcom.com, pavel@...x.de, 
	Daniel Díaz <daniel.diaz@...aro.org>
Subject: Re: [PATCH 5.10 000/238] 5.10.214-rc1 review

On Mon, 25 Mar 2024 at 05:10, Sasha Levin <sashal@...nel.org> wrote:
>
>
> This is the start of the stable review cycle for the 5.10.214 release.
> There are 238 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Tue Mar 26 11:40:23 PM UTC 2024.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/patch/?id=linux-5.10.y&id2=v5.10.213
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
> and the diffstat can be found below.
>
> Thanks,
> Sasha

We're seeing regressions while building PowerPC with GCC 8 and 12 with
 ppc6xx_defconfig.

> Thomas Zimmermann (1):
>   arch/powerpc: Remove <linux/fb.h> from backlight code

-----8<-----
   /builds/linux/drivers/macintosh/via-pmu-backlight.c:22:20: error:
'FB_BACKLIGHT_LEVELS' undeclared here (not in a function)
      22 | static u8 bl_curve[FB_BACKLIGHT_LEVELS];
         |                    ^~~~~~~~~~~~~~~~~~~
   In file included from /builds/linux/include/linux/kernel.h:15,
                    from /builds/linux/include/asm-generic/bug.h:20,
                    from /builds/linux/arch/powerpc/include/asm/bug.h:109,
                    from /builds/linux/include/linux/bug.h:5,
                    from /builds/linux/include/linux/thread_info.h:12,
                    from /builds/linux/arch/powerpc/include/asm/ptrace.h:264,
                    from /builds/linux/drivers/macintosh/via-pmu-backlight.c:11:
----->8-----

Bisection points to:

   commit ee550f669e91c4cb0c884f38aa915497bc201585
   Author: Thomas Zimmermann <tzimmermann@...e.de>
   Date:   Wed Mar 6 13:28:20 2024 +0100
       arch/powerpc: Remove <linux/fb.h> from backlight code


Reverting that commit made the build pass again.

Reproducer:

   tuxmake --runtime podman --target-arch powerpc --toolchain gcc-12
--kconfig ppc6xx_defconfig

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>


Greetings!

Daniel Díaz
daniel.diaz@...aro.org