[tzungbi-chrome-platform:dev 25/25] cros_kunit_util.c:(.text.cros_kunit_ec_xfer_mock+0x100): undefined reference to `kunit_kmalloc_array'

[tzungbi-chrome-platform:dev 25/25] cros_kunit_util.c:(.text.cros_kunit_ec_xfer_mock+0x100): undefined reference to `kunit_kmalloc_array'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tzungbi/chrome-platform.git dev
head:   c8065f6d478990cfc385d1d579972a75fc29605b
commit: c8065f6d478990cfc385d1d579972a75fc29605b [25/25] platform/chrome: cros_ec_proto: add Kunit tests for cros_ec_query_all()
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20220526/202205260852.vS1QoL3B-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/tzungbi/chrome-platform.git/commit/?id=c8065f6d478990cfc385d1d579972a75fc29605b
        git remote add tzungbi-chrome-platform https://git.kernel.org/pub/scm/linux/kernel/git/tzungbi/chrome-platform.git
        git fetch --no-tags tzungbi-chrome-platform dev
        git checkout c8065f6d478990cfc385d1d579972a75fc29605b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=powerpc 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 >>):

   powerpc-linux-ld: drivers/platform/chrome/cros_kunit_util.o: in function `cros_kunit_ec_xfer_mock':
>> cros_kunit_util.c:(.text.cros_kunit_ec_xfer_mock+0x100): undefined reference to `kunit_kmalloc_array'
   powerpc-linux-ld: drivers/platform/chrome/cros_kunit_util.o: in function `cros_kunit_ec_xfer_mock_addx':
>> cros_kunit_util.c:(.text.cros_kunit_ec_xfer_mock_addx+0x50): undefined reference to `kunit_kmalloc_array'
>> powerpc-linux-ld: cros_kunit_util.c:(.text.cros_kunit_ec_xfer_mock_addx+0xec): undefined reference to `kunit_kmalloc_array'

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