Hi Markus, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on robh/for-next] [also build test ERROR on pza/reset/next drm-intel/for-linux-next drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.14-rc6 next-20210816] [cannot apply to drm/drm-next] [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] url: https://github.com/0day-ci/linux/commits/Markus-Schneider-Pargmann/drm-me... base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm64-allyesconfig (attached as .config) compiler: aarch64-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/0day-ci/linux/commit/6b92a3087c42316f0b4bb41cf29928a73... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Markus-Schneider-Pargmann/drm-mediatek-Add-mt8195-DisplayPort-driver/20210817-034807 git checkout 6b92a3087c42316f0b4bb41cf29928a73271a1b5 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 39 | #include <drm/mediatek_drm.h> | ^~~~~~~~~~~~~~~~~~~~ compilation terminated. vim +39 drivers/gpu/drm/mediatek/mtk_dp.c 28 29 #include <drm/drm_atomic_helper.h> 30 #include <drm/drm_bridge.h> 31 #include <drm/drm_crtc.h> 32 #include <drm/drm_crtc_helper.h> 33 #include <drm/drm_dp_helper.h> 34 #include <drm/drm_edid.h> 35 #include <drm/drm_of.h> 36 #include <drm/drm_panel.h> 37 #include <drm/drm_print.h> 38 #include <drm/drm_probe_helper.h> 40 #include <sound/hdmi-codec.h> 41 #include <video/videomode.h> 42 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org