Hi Liam,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on akpm-mm/mm-everything]
[cannot apply to linus/master v6.1-rc2 next-20221026]
[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/Liam-Howlett/maple_tree-Reorganize-testing-to-restore-module-testing/20221026-232537
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20221026152155.4041070-1-Liam.Howlett%40oracle.com
patch subject: [PATCH] maple_tree: Reorganize testing to restore module testing
config: s390-allmodconfig
compiler: s390-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/253dbd44dc3ecb69f595258bca126a7a2a2cfbd3
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Liam-Howlett/maple_tree-Reorganize-testing-to-restore-module-testing/20221026-232537
        git checkout 253dbd44dc3ecb69f595258bca126a7a2a2cfbd3
        # 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=s390 SHELL=/bin/bash

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 >>, old ones prefixed by <<):

>> ERROR: modpost: "mt_dump" [lib/test_maple_tree.ko] undefined!
>> ERROR: modpost: "mt_validate" [lib/test_maple_tree.ko] undefined!
>> ERROR: modpost: "mas_walk" [lib/test_maple_tree.ko] undefined!
>> ERROR: modpost: "mas_store_gfp" [lib/test_maple_tree.ko] undefined!
>> ERROR: modpost: "mas_empty_area_rev" [lib/test_maple_tree.ko] undefined!
>> ERROR: modpost: "mas_empty_area" [lib/test_maple_tree.ko] undefined!
>> ERROR: modpost: "mas_expected_entries" [lib/test_maple_tree.ko] undefined!
>> ERROR: modpost: "mas_store" [lib/test_maple_tree.ko] undefined!
>> ERROR: modpost: "mas_destroy" [lib/test_maple_tree.ko] undefined!
>> ERROR: modpost: "mt_cache_shrink" [lib/test_maple_tree.ko] undefined!
WARNING: modpost: suppressed 26 unresolved symbol warnings because there were too many)

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