Hi Justin, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.2-rc5] [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/Justin-Green/drm-mediatek-Add-support-for-AR30-and-BA30/20230128-112134 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20230127230123.941930-1-greenjustin%40google.com patch subject: [PATCH v3] drm/mediatek: Add support for AR30 and BA30 config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20230129/202301291906.Az5NHf9w-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-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/c32525cf66e7bbf4e798aef3aafbf88dee5d049c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Justin-Green/drm-mediatek-Add-support-for-AR30-and-BA30/20230128-112134 git checkout c32525cf66e7bbf4e798aef3aafbf88dee5d049c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/gpu/drm/mediatek/ sound/soc/samsung/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/mediatek/mtk_drm_crtc.h:10, from drivers/gpu/drm/mediatek/mtk_disp_aal.c:15: drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h: In function 'mtk_ddp_comp_supports_10bit': >> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h:159:35: warning: returning 'int (*)(struct device *)' from a function with return type 'int' makes integer from pointer without a cast [-Wint-conversion] 159 | return comp->funcs->supports_10bit; | ~~~~~~~~~~~^~~~~~~~~~~~~~~~ vim +159 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h 154 155 static inline 156 int mtk_ddp_comp_supports_10bit(struct mtk_ddp_comp *comp) 157 { 158 if (comp->funcs && comp->funcs->supports_10bit) > 159 return comp->funcs->supports_10bit; 160 161 return 0; 162 } 163 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests