Hi Wambui, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on linus/master v5.6-rc3 next-20200227] [cannot apply to tegra/for-next anholt/for-next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Wambui-Karuga/drm-subsytem-wide-debugfs-functions-refactor/20200228-102633 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: arm64-defconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): >> drivers/gpu/drm/msm/adreno/a5xx_gpu.c:1437:19: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] .debugfs_init = a5xx_debugfs_init, ^~~~~~~~~~~~~~~~~ drivers/gpu/drm/msm/adreno/a5xx_gpu.c:1437:19: note: (near initialization for 'funcs.base.debugfs_init') cc1: some warnings being treated as errors -- >> drivers/gpu/drm/msm/adreno/a5xx_debugfs.c:151:6: error: conflicting types for 'a5xx_debugfs_init' void a5xx_debugfs_init(struct msm_gpu *gpu, struct drm_minor *minor) ^~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/msm/adreno/a5xx_debugfs.c:12:0: drivers/gpu/drm/msm/adreno/a5xx_gpu.h:44:5: note: previous declaration of 'a5xx_debugfs_init' was here int a5xx_debugfs_init(struct msm_gpu *gpu, struct drm_minor *minor); ^~~~~~~~~~~~~~~~~ vim +/a5xx_debugfs_init +151 drivers/gpu/drm/msm/adreno/a5xx_debugfs.c 149 150 > 151 void a5xx_debugfs_init(struct msm_gpu *gpu, struct drm_minor *minor) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org