Hi Herve, Thank you for the patch! Yet something to improve: [auto build test ERROR on broonie-sound/for-next] [also build test ERROR on robh/for-next char-misc/char-misc-testing char-misc/char-misc-next char-misc/char-misc-linus linus/master v6.3-rc2 next-20230315] [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/Herve-Codina-via-Alsa-devel/drivers-misc-Add-support-for-the-Lantiq-PEF2256-framer/20230315-214833 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next patch link: https://lore.kernel.org/r/167888778959.26.12757990479414568225%40mailman-core.alsa-project.org patch subject: [PATCH 2/7] drivers: misc: Add support for the Lantiq PEF2256 framer config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20230316/202303161232.ujDKi8PQ-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://github.com/intel-lab-lkp/linux/commit/93791052da597151cddbe64bc3013d9fec19550f git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Herve-Codina-via-Alsa-devel/drivers-misc-Add-support-for-the-Lantiq-PEF2256-framer/20230315-214833 git checkout 93791052da597151cddbe64bc3013d9fec19550f # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$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> | Link: https://lore.kernel.org/oe-kbuild-all/202303161232.ujDKi8PQ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): ERROR: modpost: "devm_ioremap_resource" [drivers/dma/qcom/hdma.ko] undefined! ERROR: modpost: "devm_platform_ioremap_resource" [drivers/dma/fsl-edma.ko] undefined! ERROR: modpost: "devm_platform_ioremap_resource" [drivers/dma/idma64.ko] undefined! ERROR: modpost: "iounmap" [drivers/tty/ipwireless/ipwireless.ko] undefined! ERROR: modpost: "ioremap" [drivers/tty/ipwireless/ipwireless.ko] undefined! ERROR: modpost: "devm_platform_ioremap_resource" [drivers/char/xillybus/xillybus_of.ko] undefined! >> ERROR: modpost: "devm_platform_ioremap_resource" [drivers/misc/pef2256.ko] undefined! ERROR: modpost: "devm_memremap" [drivers/misc/open-dice.ko] undefined! ERROR: modpost: "devm_memunmap" [drivers/misc/open-dice.ko] undefined! ERROR: modpost: "iounmap" [drivers/net/ethernet/8390/pcnet_cs.ko] undefined! WARNING: modpost: suppressed 16 unresolved symbol warnings because there were too many) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests