Hi Philipp, I love your patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next drm-tip/drm-tip linus/master v5.8-rc6 next-20200724] [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/Philipp-Zabel/drm-add-drmm_encoder_init/20200723-225705 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-allyesconfig (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project e0ee2288424952e0445f096ae7800472eac11249) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/drm_encoder.c:198:6: warning: no previous prototype for function 'drmm_encoder_init_release' [-Wmissing-prototypes] void drmm_encoder_init_release(struct drm_device *dev, void *ptr) ^ drivers/gpu/drm/drm_encoder.c:198:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void drmm_encoder_init_release(struct drm_device *dev, void *ptr) ^ static 1 warning generated. vim +/drmm_encoder_init_release +198 drivers/gpu/drm/drm_encoder.c 197 > 198 void drmm_encoder_init_release(struct drm_device *dev, void *ptr) 199 { 200 struct drm_encoder *encoder = ptr; 201 202 drm_encoder_cleanup(encoder); 203 } 204 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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