tree:   https://github.com/intel/tdx.git guest
head:   12f4800ff5dbe89a642744796008f89f23b2e446
commit: 4abfd963687d3a538e1c7e0d3a93dabeb0637660 [49/136] virtio: Use shared mappings for virtio PCI devices
config: s390-defconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 11.2.0
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/tdx/commit/4abfd963687d3a538e1c7e0d3a93dabeb0637660
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx guest
        git checkout 4abfd963687d3a538e1c7e0d3a93dabeb0637660
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=s390 

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

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

>> ERROR: modpost: "pci_iomap_host_shared_range" [drivers/virtio/virtio_pci_modern_dev.ko] undefined!

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