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    SubjectRe: [PATCH v2 1/5] cxl/pci: Add RCH downstream port AER and RAS register discovery
    Hi Terry,

    Thank you for the patch! Perhaps something to improve:

    [auto build test WARNING on pci/next]
    [also build test WARNING on pci/for-linus efi/next cxl/next cxl/pending linus/master v6.3-rc3 next-20230324]
    [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/Terry-Bowman/cxl-pci-Add-RCH-downstream-port-AER-and-RAS-register-discovery/20230324-054044
    base: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next
    patch link: https://lore.kernel.org/r/20230323213808.398039-2-terry.bowman%40amd.com
    patch subject: [PATCH v2 1/5] cxl/pci: Add RCH downstream port AER and RAS register discovery
    config: parisc-randconfig-s043-20230322 (https://download.01.org/0day-ci/archive/20230324/202303241632.HTxJ0yfj-lkp@intel.com/config)
    compiler: hppa-linux-gcc (GCC) 12.1.0
    reproduce:
    wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
    chmod +x ~/bin/make.cross
    # apt-get install sparse
    # sparse version: v0.6.4-39-gce1a6720-dirty
    # https://github.com/intel-lab-lkp/linux/commit/7cbc5c7357504af79c820ad7d0e9369b4a580a65
    git remote add linux-review https://github.com/intel-lab-lkp/linux
    git fetch --no-tags linux-review Terry-Bowman/cxl-pci-Add-RCH-downstream-port-AER-and-RAS-register-discovery/20230324-054044
    git checkout 7cbc5c7357504af79c820ad7d0e9369b4a580a65
    # save the config file
    mkdir build_dir && cp config build_dir/.config
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=parisc olddefconfig
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=parisc SHELL=/bin/bash

    If you fix the issue, kindly add following tag where applicable
    | Reported-by: kernel test robot <lkp@intel.com>
    | Link: https://lore.kernel.org/oe-kbuild-all/202303241632.HTxJ0yfj-lkp@intel.com/

    sparse warnings: (new ones prefixed by >>)
    >> drivers/cxl/core/regs.c:340:24: sparse: sparse: Using plain integer as NULL pointer
    drivers/cxl/core/regs.c:345:24: sparse: sparse: Using plain integer as NULL pointer

    vim +340 drivers/cxl/core/regs.c

    338
    339 if (!request_mem_region(map->resource, map->max_size, name))
    > 340 return 0;
    341
    342 map->base = ioremap(map->resource, map->max_size);
    343 if (!map->base) {
    344 release_mem_region(map->resource, map->max_size);
    345 return 0;
    346 }
    347
    348 return map->base;
    349 }
    350

    --
    0-DAY CI Kernel Test Service
    https://github.com/intel/lkp-tests

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