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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Tue, 21 Mar 2023 00:12:40 +0530
Message-ID: <CA+G9fYtCtfSqrje=1wkw1ODpnJorDMFkB1bSVexpyc4gi3X0ZQ@mail.gmail.com>
Subject: Re: [PATCH 6.1 000/198] 6.1.21-rc1 review
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     stable@vger.kernel.org, patches@lists.linux.dev,
        linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
        akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org,
        patches@kernelci.org, lkft-triage@lists.linaro.org, pavel@denx.de,
        jonathanh@nvidia.com, f.fainelli@gmail.com,
        sudipm.mukherjee@gmail.com, srw@sladewatkins.net, rwarsow@gmx.de,
        =?UTF-8?B?RGFuaWVsIETDrWF6?= <daniel.diaz@linaro.org>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        llvm@lists.linux.dev, Michael Ellerman <mpe@ellerman.id.au>
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On Mon, 20 Mar 2023 at 20:26, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 6.1.21 release.
> There are 198 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 Wed, 22 Mar 2023 14:54:29 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-=
6.1.21-rc1.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable=
-rc.git linux-6.1.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h


Results from Linaro=E2=80=99s test farm.
Regressions on PowerPC build failures.

> Christophe Leroy <christophe.leroy@csgroup.eu>
>     powerpc/64: Set default CPU in Kconfig
>

We see PowerPC build failures with Clang 16 and nightly on the
following configurations:
* cell_defconfig
* ppc64e_defconfig
* tqm8xx_defconfig

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

Error messages respectively:
-----8<-----
error: unknown target CPU 'cell'
note: valid target CPU values are: generic, 440, 450, 601, 602, 603,
603e, 603ev, 604, 604e, 620, 630, g3, 7400, g4, 7450, g4+, 750, 8548,
970, g5, a2, e500, e500mc, e5500, power3, pwr3, power4, pwr4, power5,
pwr5, power5x, pwr5x, power6, pwr6, power6x, pwr6x, power7, pwr7,
power8, pwr8, power9, pwr9, power10, pwr10, powerpc, ppc, ppc32,
powerpc64, ppc64, powerpc64le, ppc64le, future
----->8-----

-----8<-----
error: unknown target CPU 'e500mc64'
note: valid target CPU values are: generic, 440, 450, 601, 602, 603,
603e, 603ev, 604, 604e, 620, 630, g3, 7400, g4, 7450, g4+, 750, 8548,
970, g5, a2, e500, e500mc, e5500, power3, pwr3, power4, pwr4, power5,
pwr5, power5x, pwr5x, power6, pwr6, power6x, pwr6x, power7, pwr7,
power8, pwr8, power9, pwr9, power10, pwr10, powerpc, ppc, ppc32,
powerpc64, ppc64, powerpc64le, ppc64le, future
----->8-----

-----8<-----
error: unknown target CPU '860'
note: valid target CPU values are: generic, 440, 450, 601, 602, 603,
603e, 603ev, 604, 604e, 620, 630, g3, 7400, g4, 7450, g4+, 750, 8548,
970, g5, a2, e500, e500mc, e5500, power3, pwr3, power4, pwr4, power5,
pwr5, power5x, pwr5x, power6, pwr6, power6x, pwr6x, power7, pwr7,
power8, pwr8, power9, pwr9, power10, pwr10, powerpc, ppc, ppc32,
powerpc64, ppc64, powerpc64le, ppc64le, future
----->8-----

The bisection pointed to this commit,
  45f7091aac35 ("powerpc/64: Set default CPU in Kconfig")


Follow up fix patch is here as per Christophe Leroy comments,
 powerpc: Disable CPU unknown by CLANG when CC_IS_CLANG


--
Linaro LKFT
https://lkft.linaro.org