[cxl:preview 56/66] ERROR: modpost: "devm_gen_pool_create" [drivers/cxl/cxl_acpi.ko] undefined!

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git preview
head:   3e9e1e72c0c24fcbeb8c96f4e886be138f61496f
commit: 560e2708e4272ad7903fcd9696fca542c96301d5 [56/66] cxl/acpi: Handle address space allocation
config: i386-randconfig-a005-20220221 (https://download.01.org/0day-ci/archive/20220223/202202231409.fEwgg5q5-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git/commit/?id=560e2708e4272ad7903fcd9696fca542c96301d5
        git remote add cxl https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git
        git fetch --no-tags cxl preview
        git checkout 560e2708e4272ad7903fcd9696fca542c96301d5
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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

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

ERROR: modpost: "__umoddi3" [drivers/cxl/cxl_region.ko] undefined!
>> ERROR: modpost: "devm_gen_pool_create" [drivers/cxl/cxl_acpi.ko] undefined!
>> ERROR: modpost: "gen_pool_add_owner" [drivers/cxl/cxl_acpi.ko] undefined!

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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx