vfio_pci_zdev.c:undefined reference to `kvm_s390_pci_register_kvm'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   aea23e7c464bfdec04b52cf61edb62030e9e0d0a
commit: 8061d1c31f1a018281bc9877ecce44bfc779e21d vfio-pci/zdev: add open/close device hooks
date:   5 weeks ago
config: s390-randconfig-r011-20220814 (https://download.01.org/0day-ci/archive/20220814/202208142157.vqcg59kg-lkp@xxxxxxxxx/config)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8061d1c31f1a018281bc9877ecce44bfc779e21d
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 8061d1c31f1a018281bc9877ecce44bfc779e21d
        # 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@xxxxxxxxx>

All errors (new ones prefixed by >>):

   s390-linux-ld: drivers/vfio/pci/vfio_pci_zdev.o: in function `vfio_pci_zdev_open_device':
>> vfio_pci_zdev.c:(.text+0x232): undefined reference to `kvm_s390_pci_register_kvm'
   s390-linux-ld: drivers/vfio/pci/vfio_pci_zdev.o: in function `vfio_pci_zdev_close_device':
>> vfio_pci_zdev.c:(.text+0x286): undefined reference to `kvm_s390_pci_unregister_kvm'

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