reproduce (this is a W=1 build): git clone https://github.com/intel/lkp-tests.git ~/lkp-tests git remote add awilliam-vfio https://github.com/awilliam/linux-vfio.git git fetch awilliam-vfio next git checkout awilliam-vfio/next b4 shazam https://lore.kernel.org/r/20241121140057.25157-1-avihaih@nvidia.com # save the config file mkdir build_dir && cp config build_dir/.config ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 olddefconfig ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/vfio/pci/