Hi Jitao, Thank you for the patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on pza/reset/next linux/master linus/master v5.11-rc7 next-20210125] [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/Jitao-Shi/Add-check-for-max-clock-rate-in-mode_valid/20210208-094340 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm64-randconfig-r023-20210209 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/7036ee290c5a384eeaa0b45d739a8b024235671d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jitao-Shi/Add-check-for-max-clock-rate-in-mode_valid/20210208-094340 git checkout 7036ee290c5a384eeaa0b45d739a8b024235671d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/gpu/drm/mediatek/mtk_dpi.c:574:16: error: incompatible function pointer types initializing 'enum drm_mode_status (*)(struct drm_bridge *, const struct drm_display_info *, const struct drm_display_mode *)' with an expression of type 'enum drm_mode_status (struct drm_bridge *, const struct drm_display_mode *)' [-Werror,-Wincompatible-function-pointer-types] .mode_valid = mtk_dpi_bridge_mode_valid, ^~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. vim +574 drivers/gpu/drm/mediatek/mtk_dpi.c 570 571 static const struct drm_bridge_funcs mtk_dpi_bridge_funcs = { 572 .attach = mtk_dpi_bridge_attach, 573 .mode_set = mtk_dpi_bridge_mode_set, > 574 .mode_valid = mtk_dpi_bridge_mode_valid, 575 .disable = mtk_dpi_bridge_disable, 576 .enable = mtk_dpi_bridge_enable, 577 }; 578 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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