Re: [linux-next:master] BUILD REGRESSION 9a4cdc958dd79fc6c3b20b51a10debec6ca09fec

Jonathan Cameron <[email protected]> Wed, 5 Aug 2026 01:33:36 +0100
Newsgroups gmane.linux.kernel.iio,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.arm.mediatek,gmane.linux.network
Message-ID <20260805013336.4bd8a298@jic23-huawei>
On Tue, 04 Aug 2026 14:24:23 +0800
kernel test robot <[email protected]> wrote:

> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> branch HEAD: 9a4cdc958dd79fc6c3b20b51a10debec6ca09fec  Add linux-next specific files for 20260803
> 
> Unverified Error/Warning (likely false positive, kindly check if interested):
> 
>     https://lore.kernel.org/oe-kbuild/202608040800.45L57Mym-lkp-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
> 
>     drivers/iio/magnetometer/qmc6308.c:402:7: error: call to '__compiletime_assert_472' declared with 'error' attribute: FIELD_PREP: value too large for the field

The line in question is setting a 2 bit field (GENMASK(3, 2)) to 0.
No idea what is triggering that warning.

>     drivers/net/ethernet/airoha/airoha_eth.c:3470:25: sparse: sparse: division by zero
> 
> Error/Warning ids grouped by kconfigs:
> 
> recent_errors
> |-- arm-randconfig-r121-20260803
> |   `-- drivers-net-ethernet-airoha-airoha_eth.c:sparse:sparse:division-by-zero
> `-- um-randconfig-002-20260803
>     `-- drivers-iio-magnetometer-qmc6308.c:error:call-to-__compiletime_assert_NNN-declared-with-error-attribute:FIELD_PREP:value-too-large-for-the-field
> 
> elapsed time: 726m
> 
> configs tested: 100
> configs skipped: 1
> 
> tested configs:
> alpha                            allnoconfig    gcc-16.1.0
> alpha                           allyesconfig    gcc-16.1.0
> alpha                              defconfig    gcc-16.1.0
> arc                             allmodconfig    gcc-16.1.0
> arc                             allyesconfig    gcc-16.1.0
> arc                  randconfig-001-20260804    gcc-15.2.0
> arc                  randconfig-002-20260804    gcc-8.5.0
> arm                  randconfig-001-20260804    gcc-10.5.0
> arm                  randconfig-002-20260804    gcc-15.2.0
> arm                  randconfig-003-20260804    clang-17
> arm                  randconfig-004-20260804    gcc-8.5.0
> arm64                randconfig-001-20260804    clang-24
> arm64                randconfig-002-20260804    gcc-9.5.0
> arm64                randconfig-003-20260804    gcc-11.5.0
> arm64                randconfig-004-20260804    gcc-9.5.0
> csky                            allmodconfig    gcc-16.1.0
> csky                 randconfig-001-20260804    gcc-9.5.0
> csky                 randconfig-002-20260804    gcc-11.5.0
> hexagon              randconfig-001-20260804    clang-24
> hexagon              randconfig-002-20260804    clang-24
> i386                            allmodconfig    gcc-14
> i386                buildonly-randconfig-001    gcc-14
> i386       buildonly-randconfig-001-20260804    clang-22
> i386       buildonly-randconfig-002-20260804    clang-22
> i386       buildonly-randconfig-003-20260804    clang-22
> i386       buildonly-randconfig-004-20260804    gcc-12
> i386       buildonly-randconfig-005-20260804    clang-22
> i386       buildonly-randconfig-006-20260804    gcc-14
> i386                 randconfig-001-20260804    gcc-14
> i386                 randconfig-002-20260804    gcc-14
> i386                 randconfig-003-20260804    gcc-14
> i386                 randconfig-004-20260804    gcc-14
> i386                 randconfig-005-20260804    gcc-14
> i386                 randconfig-006-20260804    clang-22
> i386                 randconfig-007-20260804    gcc-14
> i386                 randconfig-011-20260804    clang-22
> i386                 randconfig-012-20260804    gcc-14
> i386                 randconfig-013-20260804    clang-22
> i386                 randconfig-014-20260804    gcc-14
> i386                 randconfig-015-20260804    clang-22
> i386                 randconfig-016-20260804    gcc-13
> i386                 randconfig-017-20260804    clang-22
> loongarch                          defconfig    clang-24
> loongarch            randconfig-001-20260804    clang-24
> loongarch            randconfig-002-20260804    gcc-16.1.0
> nios2                           allmodconfig    gcc-11.5.0
> nios2                            allnoconfig    gcc-11.5.0
> nios2                randconfig-001-20260804    gcc-8.5.0
> nios2                randconfig-002-20260804    gcc-11.5.0
> parisc                          allmodconfig    gcc-16.1.0
> parisc                          allyesconfig    gcc-16.1.0
> parisc                             defconfig    gcc-16.1.0
> parisc               randconfig-001-20260804    gcc-8.5.0
> parisc               randconfig-002-20260804    gcc-8.5.0
> powerpc                      eiger_defconfig    clang-24
> powerpc              randconfig-001-20260804    clang-24
> powerpc              randconfig-002-20260804    gcc-11.5.0
> powerpc64            randconfig-001-20260804    gcc-8.5.0
> powerpc64            randconfig-002-20260804    gcc-8.5.0
> riscv                randconfig-002-20260804    gcc-13.4.0
> s390                 randconfig-001-20260804    clang-21
> s390                 randconfig-002-20260804    clang-18
> sh                                 defconfig    gcc-16.1.0
> sh                   randconfig-001-20260804    gcc-16.1.0
> sh                   randconfig-002-20260804    gcc-16.1.0
> sparc                randconfig-001-20260804    gcc-16.1.0
> sparc                randconfig-002-20260804    gcc-16.1.0
> sparc64              randconfig-001-20260804    clang-24
> sparc64              randconfig-002-20260804    clang-20
> um                   randconfig-001-20260804    gcc-14
> um                   randconfig-002-20260804    gcc-14
> x86_64              buildonly-randconfig-001    gcc-12
> x86_64     buildonly-randconfig-001-20260804    gcc-14
> x86_64     buildonly-randconfig-002-20260804    clang-22
> x86_64     buildonly-randconfig-003-20260804    gcc-14
> x86_64     buildonly-randconfig-004-20260804    gcc-14
> x86_64     buildonly-randconfig-005-20260804    clang-22
> x86_64     buildonly-randconfig-006-20260804    clang-22
> x86_64                                 kexec    clang-22
> x86_64               randconfig-001-20260804    gcc-14
> x86_64               randconfig-002-20260804    gcc-13
> x86_64               randconfig-003-20260804    clang-22
> x86_64               randconfig-004-20260804    clang-22
> x86_64               randconfig-005-20260804    gcc-14
> x86_64               randconfig-006-20260804    clang-22
> x86_64               randconfig-011-20260804    clang-22
> x86_64               randconfig-012-20260804    gcc-14
> x86_64               randconfig-013-20260804    clang-22
> x86_64               randconfig-014-20260804    clang-22
> x86_64               randconfig-015-20260804    clang-22
> x86_64               randconfig-016-20260804    clang-22
> x86_64               randconfig-071-20260804    gcc-14
> x86_64               randconfig-072-20260804    gcc-14
> x86_64               randconfig-073-20260804    gcc-14
> x86_64               randconfig-074-20260804    gcc-12
> x86_64               randconfig-075-20260804    gcc-14
> x86_64               randconfig-076-20260804    clang-22
> x86_64                          rhel-9.4-bpf    gcc-14
> xtensa               randconfig-001-20260804    gcc-8.5.0
> xtensa               randconfig-002-20260804    gcc-14.3.0
> 
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
>