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    SubjectRe: [PATCH] hugetlb: simplify hugetlb handling in follow_page_mask
    Hi Mike,

    I love your patch! Yet something to improve:

    [auto build test ERROR on akpm-mm/mm-everything]
    [also build test ERROR on linus/master v6.0-rc3 next-20220830]
    [cannot apply to powerpc/next]
    [If your patch is applied to the wrong git tree, kindly drop us a note.
    And when submitting patch, we suggest to use '--base' as documented in
    https://git-scm.com/docs/git-format-patch#_base_tree_information]

    url: https://github.com/intel-lab-lkp/linux/commits/Mike-Kravetz/hugetlb-simplify-hugetlb-handling-in-follow_page_mask/20220830-074147
    base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
    config: powerpc-randconfig-r001-20220830 (https://download.01.org/0day-ci/archive/20220831/202208311341.ybNgt0Kz-lkp@intel.com/config)
    compiler: powerpc-linux-gcc (GCC) 12.1.0
    reproduce (this is a W=1 build):
    wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
    chmod +x ~/bin/make.cross
    # https://github.com/intel-lab-lkp/linux/commit/f7dc41c1552ecd1e483a100c8b0921df62980f38
    git remote add linux-review https://github.com/intel-lab-lkp/linux
    git fetch --no-tags linux-review Mike-Kravetz/hugetlb-simplify-hugetlb-handling-in-follow_page_mask/20220830-074147
    git checkout f7dc41c1552ecd1e483a100c8b0921df62980f38
    # save the config file
    mkdir build_dir && cp config build_dir/.config
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kernel/

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

    All errors (new ones prefixed by >>):

    In file included from arch/powerpc/kernel/setup-common.c:35:
    >> include/linux/hugetlb.h:258:21: error: 'hugetlb_follow_page_mask' defined but not used [-Werror=unused-function]
    258 | static struct page *hugetlb_follow_page_mask(struct vm_area_struct *vma,
    | ^~~~~~~~~~~~~~~~~~~~~~~~
    cc1: all warnings being treated as errors


    vim +/hugetlb_follow_page_mask +258 include/linux/hugetlb.h

    257
    > 258 static struct page *hugetlb_follow_page_mask(struct vm_area_struct *vma,
    259 unsigned long address, unsigned int flags)
    260 {
    261 /* should never happen, but do not want to BUG */
    262 return ERR_PTR(-EINVAL);
    263 }
    264

    --
    0-DAY CI Kernel Test Service
    https://01.org/lkp

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