Hi Sui, I love your patch! Perhaps something to improve: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on linus/master v6.3-rc2 next-20230316] [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/Sui-Jingfeng/MAINTAINERS-add-maintainers-for-DRM-LOONGSON-driver/20230316-051724 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20230315211550.2620818-3-15330273260%40189.cn patch subject: [PATCH v7 2/2] drm: add kms driver for loongson display controller config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20230316/202303161727.8HnBf6cW-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/ba899dba3475b9612f212e3b1daedc3d9a299458 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Sui-Jingfeng/MAINTAINERS-add-maintainers-for-DRM-LOONGSON-driver/20230316-051724 git checkout ba899dba3475b9612f212e3b1daedc3d9a299458 # 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/loongson/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303161727.8HnBf6cW-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/gpu/drm/loongson/lsdc_gem.c: In function 'lsdc_show_buffer_object': >> drivers/gpu/drm/loongson/lsdc_gem.c:280:51: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 280 | seq_printf(m, "bo[%04u]: size: %8lukB %s\n", | ~~~^ | | | long unsigned int | %8u 281 | i, 282 | lsdc_bo_size(tbo) >> 10, | ~~~~~~~~~~~~~~~~~~~~~~~ | | | size_t {aka unsigned int} vim +280 drivers/gpu/drm/loongson/lsdc_gem.c 264 265 int lsdc_show_buffer_object(struct seq_file *m, void *arg) 266 { 267 #ifdef CONFIG_DEBUG_FS 268 struct drm_info_node *node = (struct drm_info_node *)m->private; 269 struct drm_device *ddev = node->minor->dev; 270 struct lsdc_device *ldev = to_lsdc(ddev); 271 struct lsdc_bo *lbo; 272 unsigned int i = 0; 273 274 mutex_lock(&ldev->gem.mutex); 275 276 list_for_each_entry(lbo, &ldev->gem.objects, list) { 277 struct ttm_buffer_object *tbo = &lbo->tbo; 278 struct ttm_resource *resource = tbo->resource; 279 > 280 seq_printf(m, "bo[%04u]: size: %8lukB %s\n", -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests