Hi Steffen, kernel test robot noticed the following build errors: [auto build test ERROR on kvms390/next] [also build test ERROR on s390/features mst-vhost/linux-next linus/master v6.4-rc1 next-20230512] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Steffen-Eiden/s390-uvdevice-Add-info-IOCTL/20230512-174226 base: https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git next patch link: https://lore.kernel.org/r/20230512093153.206378-2-seiden%40linux.ibm.com patch subject: [PATCH 1/5] s390/uvdevice: Add info IOCTL config: s390-randconfig-s043-20230509 (https://download.01.org/0day-ci/archive/20230513/202305131333.DKwclZxs-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/82f137c1686ef0317cd12c5737fa349f2582163c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Steffen-Eiden/s390-uvdevice-Add-info-IOCTL/20230512-174226 git checkout 82f137c1686ef0317cd12c5737fa349f2582163c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' 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> | Link: https://lore.kernel.org/oe-kbuild-all/202305131333.DKwclZxs-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "uv_info" [drivers/s390/char/uvdevice.ko] undefined! -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests