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    SubjectRe: [PATCH v3 2/2] dma-pool: Only allocate from CMA when in same memory zone
    Hi Nicolas,

    I love your patch! Perhaps something to improve:

    [auto build test WARNING on iommu/next]
    [also build test WARNING on linus/master v5.8]
    [cannot apply to next-20200806]
    [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]

    url: https://github.com/0day-ci/linux/commits/Nicolas-Saenz-Julienne/dma-pool-fixes/20200807-025101
    base: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next
    config: x86_64-randconfig-s031-20200806 (attached as .config)
    compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
    reproduce:
    # apt-get install sparse
    # sparse version: v0.6.2-117-g8c7aee71-dirty
    # save the attached .config to linux build tree
    make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64

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

    All warnings (new ones prefixed by >>, old ones prefixed by <<):

    >> WARNING: modpost: vmlinux.o(.text+0x2840fa): Section mismatch in reference from the function atomic_pool_expand() to the function .meminit.text:memblock_start_of_DRAM()
    The function atomic_pool_expand() references
    the function __meminit memblock_start_of_DRAM().
    This is often because atomic_pool_expand lacks a __meminit
    annotation or the annotation of memblock_start_of_DRAM is wrong.

    ---
    0-DAY CI Kernel Test Service, Intel Corporation
    https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
    [unhandled content-type:application/gzip]
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