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    SubjectRe: [PATCH v2 bpf-next 10/13] bpf: Add instructions for atomic[64]_[fetch_]sub
    Hi Brendan,

    Thank you for the patch! Perhaps something to improve:

    [auto build test WARNING on bpf-next/master]

    url: https://github.com/0day-ci/linux/commits/Brendan-Jackman/Atomics-for-eBPF/20201128-020057
    base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
    config: i386-randconfig-s001-20201127 (attached as .config)
    compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
    reproduce:
    # apt-get install sparse
    # sparse version: v0.6.3-151-g540c2c4b-dirty
    # https://github.com/0day-ci/linux/commit/8b1823a5cf4569c72046175d217e3e2ad68c6a05
    git remote add linux-review https://github.com/0day-ci/linux
    git fetch --no-tags linux-review Brendan-Jackman/Atomics-for-eBPF/20201128-020057
    git checkout 8b1823a5cf4569c72046175d217e3e2ad68c6a05
    # save the attached .config to linux build tree
    make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386

    If you fix the issue, kindly add following tag as appropriate
    Reported-by: kernel test robot <lkp@intel.com>


    "sparse warnings: (new ones prefixed by >>)"
    >> kernel/bpf/disasm.c:83:12: sparse: sparse: symbol 'bpf_atomic_alu_string' was not declared. Should it be static?

    Please review and possibly fold the followup patch.

    ---
    0-DAY CI Kernel Test Service, Intel Corporation
    https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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