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    SubjectRe: [PATCH v8 7/7] powerpc/perf: nest pmu cpumask and cpu hotplug support
    Hi Madhavan,

    [auto build test ERROR on v4.5-rc5]
    [also build test ERROR on next-20160229]
    [cannot apply to powerpc/next]
    [if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

    url: https://github.com/0day-ci/linux/commits/Madhavan-Srinivasan/powerpc-powernv-Nest-Instrumentation-support/20160223-120036
    config: powerpc-maple_defconfig (attached as .config)
    reproduce:
    wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
    chmod +x ~/bin/make.cross
    # save the attached .config to linux build tree
    make.cross ARCH=powerpc

    All errors (new ones prefixed by >>):

    arch/powerpc/perf/nest-pmu.c: In function 'nest_exit_cpu':
    >> arch/powerpc/perf/nest-pmu.c:82:12: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
    l_cpumask = cpumask_of_node(nid);
    ^
    arch/powerpc/perf/nest-pmu.c: In function 'nest_init_cpu':
    arch/powerpc/perf/nest-pmu.c:101:12: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
    l_cpumask = cpumask_of_node(nid);
    ^
    cc1: all warnings being treated as errors

    vim +/const +82 arch/powerpc/perf/nest-pmu.c

    76
    77 /*
    78 * Now that this cpu is one of the designated,
    79 * find a next cpu a) which is online and b) in same chip.
    80 */
    81 nid = cpu_to_node(cpu);
    > 82 l_cpumask = cpumask_of_node(nid);
    83 target = cpumask_next(cpu, l_cpumask);
    84
    85 /*

    ---
    0-DAY kernel test infrastructure Open Source Technology Center
    https://lists.01.org/pipermail/kbuild-all Intel Corporation
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