[boqun:dev/arm64 4/4] ERROR: modpost: "memory_block_size_bytes" [drivers/hv/hv_balloon.ko] undefined!

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git dev/arm64
head:   abd696a42824ab4956b5f81bbfdfa54c4ef28d88
commit: abd696a42824ab4956b5f81bbfdfa54c4ef28d88 [4/4] Drivers: hv: balloon: Support memory hot add for larger page sizes
config: i386-debian-10.3 (https://download.01.org/0day-ci/archive/20220223/202202231143.eyW0Glnu-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/boqun/linux.git/commit/?id=abd696a42824ab4956b5f81bbfdfa54c4ef28d88
        git remote add boqun https://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git
        git fetch --no-tags boqun dev/arm64
        git checkout abd696a42824ab4956b5f81bbfdfa54c4ef28d88
        # 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: "memory_block_size_bytes" [drivers/hv/hv_balloon.ko] undefined!

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