linux-kernel - Re: [PATCH 5.18 000/231] 5.18.13-rc1 review

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Date:   Tue, 19 Jul 2022 23:27:18 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.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, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, sudipm.mukherjee@...il.com,
        slade@...dewatkins.com, John Harrison <John.C.Harrison@...el.com>,
        Tejas Upadhyay <tejas.upadhyay@...el.com>,
        Anusha Srivatsa <anusha.srivatsa@...el.com>,
        Jani Nikula <jani.nikula@...el.com>,
        Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>
Subject: Re: [PATCH 5.18 000/231] 5.18.13-rc1 review

On Tue, 19 Jul 2022 at 17:49, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 5.18.13 release.
> There are 231 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 Thu, 21 Jul 2022 11:43:40 +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/v5.x/stable-review/patch-5.18.13-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-5.18.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h


There are two regression found

1)
Build regression on i386 with clang-13 and clang-14,
I do not see this build error on mainline.

2) Too many build warnings x86 with gcc-11
I do not see these build warnings on mainline,

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

Details log:
------------
1. i386 build failures with clang-13 and clang-14
make --silent --keep-going --jobs=8
O=/home/tuxbuild/.cache/tuxmake/builds/1/build LLVM=1 LLVM_IAS=1
ARCH=i386 CROSS_COMPILE=i686-linux-gnu- 'HOSTCC=sccache clang'
'CC=sccache clang'
ld.lld: error: undefined symbol: __udivdi3
>>> referenced by i915_scatterlist.c
>>>               gpu/drm/i915/i915_scatterlist.o:(i915_rsgt_from_mm_node) in archive drivers/built-in.a
make[1]: *** [/builds/linux/Makefile:1162: vmlinux] Error 1


steps to reproduce:
--------------------------
tuxmake --runtime podman --target-arch i386 --toolchain clang-14
--kconfig https://builds.tuxbuild.com/2CA3gjUTE2s74Bzp3G7q2hBxj1t/config
LLVM=1 LLVM_IAS=1
[1] https://builds.tuxbuild.com/2CA3gjUTE2s74Bzp3G7q2hBxj1t/


2. Large number of build warnings on x86 with gcc-11,
I do not see these build warnings on mainline,

Build link: https://builds.tuxbuild.com/2CA3fVEQKJXLNNGgHvoEmFEjyPq/

make --silent --keep-going --jobs=8
O=/home/tuxbuild/.cache/tuxmake/builds/1/build ARCH=x86_64
CROSS_COMPILE=x86_64-linux-gnu- 'CC=sccache x86_64-linux-gnu-gcc'
'HOSTCC=sccache gcc'
init/calibrate.o: warning: objtool: calibrate_delay_is_known()+0xc:
'naked' return found in RETPOLINE build
init/initramfs.o: warning: objtool: wait_for_initramfs()+0x23: 'naked'
return found in RETPOLINE build
init/main.o: warning: objtool: __traceiter_initcall_level()+0x3a:
'naked' return found in RETPOLINE build
arch/x86/entry/vdso/vma.o: warning: objtool: vdso_mremap()+0x49:
'naked' return found in RETPOLINE build
arch/x86/events/amd/core.o: warning: objtool:
amd_pmu_event_map()+0x1e: 'naked' return found in RETPOLINE build
init/do_mounts.o: warning: objtool: match_dev_by_label()+0x2d: 'naked'
return found in RETPOLINE build
arch/x86/events/amd/iommu.o: warning: objtool:
perf_iommu_event_init()+0x57: 'naked' return found in RETPOLINE build
arch/x86/events/amd/ibs.o: warning: objtool: perf_ibs_init()+0x136:
'naked' return found in RETPOLINE build
certs/system_keyring.o: warning: objtool:
restrict_link_by_builtin_trusted()+0x16: 'naked' return found in REild
kernel/locking/mutex.o: warning: objtool: __mutex_init()+0x2b: 'naked'
return found in RETPOLINE build

steps to reproduce:
tuxmake --runtime podman --target-arch x86_64 --toolchain gcc-11
--kconfig https://builds.tuxbuild.com/2CA3fVEQKJXLNNGgHvoEmFEjyPq/config

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