Re: [PATCH 6.6 000/139] 6.6.96-rc1 review

[Naresh Kamboju]

On Fri, 4 Jul 2025 at 18:55, Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> wrote:
>
> On Thu, 3 Jul 2025 at 20:42, Greg Kroah-Hartman
> <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> >
> > This is the start of the stable review cycle for the 6.6.96 release.
> > There are 139 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 Sat, 05 Jul 2025 14:39:10 +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-6.6.96-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-6.6.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
>
> The following build errors were noticed on arm with gcc-13 and clang-20 on
> the stable-rc 6.6.96-rc1.
>
> Test environments:
> - arm
>
> Regression Analysis:
> - New regression? Yes
> - Reproducibility? Yes
>
> Test regression: 6.6.96-rc1: coresight-core.c error implicit
> declaration of function 'FIELD_GET'
>

Bisection results pointing to,

    coresight: Only check bottom two claim bits
     [ Upstream commit a4e65842e1142aa18ef36113fbd81d614eaefe5a ]

The following patch needs to be back ported ?
   b36e78b216e6 ("ARM: 9354/1: ptrace: Use bitfield helpers")


> Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
>
> ## Test log
> drivers/hwtracing/coresight/coresight-core.c: In function
> 'coresight_read_claim_tags':
> drivers/hwtracing/coresight/coresight-core.c:138:16: error: implicit
> declaration of function 'FIELD_GET'
> [-Werror=implicit-function-declaration]
>   138 |         return FIELD_GET(CORESIGHT_CLAIM_MASK,
>       |                ^~~~~~~~~
> cc1: some warnings being treated as errors
>
> ## Build
> * kernel: 6.6.96-rc1
> * git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
> * git commit: e950145d456d01fa4e589d5e6183c2f8f0676743
> * git describe: v6.6.95-140-ge950145d456d
> * test details:
> https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.6.y/build/v6.6.95-140-ge950145d456d
>
> ## Test Regressions (compared to v6.6.94-289-g33e06c71265b)
> * arm, build
>   - clang-20-lkftconfig
>   - clang-20-u8500_defconfig
>   - clang-nightly-lkftconfig
>   - clang-nightly-u8500_defconfig
>   - gcc-13-allmodconfig
>   - gcc-13-lkftconfig
>   - gcc-13-lkftconfig-debug
>   - gcc-13-lkftconfig-kasan
>   - gcc-13-lkftconfig-kunit
>   - gcc-13-lkftconfig-libgpiod
>   - gcc-13-lkftconfig-perf
>   - gcc-13-lkftconfig-rcutorture
>   - gcc-13-u8500_defconfig
>   - gcc-8-u8500_defconfig


- Naresh