Hi Brandon, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on next-20230828] [cannot apply to linus/master v6.5] [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/Brandon-Pollack/drm-vkms-Back-VKMS-with-DRM-memory-management-instead-of-static-objects/20230828-162136 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20230828081929.3574228-6-brpol%40chromium.org patch subject: [PATCH v5 5/7] drm/vkms: Support enabling ConfigFS devices config: x86_64-randconfig-r015-20230828 (https://download.01.org/0day-ci/archive/20230828/202308282031.pHgZz2pY-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230828/202308282031.pHgZz2pY-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308282031.pHgZz2pY-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/vkms/vkms_output.c:180: warning: Function parameter or member 'vkmsdev' not described in 'validate_vkms_configfs_no_dangling_objects' vim +180 drivers/gpu/drm/vkms/vkms_output.c 166 167 /** 168 * validate_vkms_configfs_no_dangling_objects - warn on unused objects in vkms 169 * configfs. 170 * @vkmsdev vkms device 171 * 172 * This gives slightly more visible warning messaging to the user before the drm 173 * system finds the configuration invalid and prints it's debug information. In 174 * this case the user may have accidentally not included some links, or the user 175 * could be testing this faulty configuration. 176 * 177 */ 178 static void 179 validate_vkms_configfs_no_dangling_objects(struct vkms_device *vkmsdev) > 180 { 181 struct vkms_configfs *configfs = vkmsdev->configfs; 182 struct config_item *item; 183 184 // 1. Planes 185 list_for_each_entry(item, &configfs->planes_group.cg_children, 186 ci_entry) { 187 struct vkms_config_plane *config_plane = 188 item_to_config_plane(item); 189 if (config_plane->possible_crtcs.linked_object_bitmap == 0) 190 DRM_WARN( 191 "Vkms configfs created plane %s has no linked crtcs", 192 item->ci_name); 193 } 194 195 // 2. connectors 196 list_for_each_entry(item, &configfs->connectors_group.cg_children, 197 ci_entry) { 198 struct vkms_config_connector *config_connector = 199 item_to_config_connector(item); 200 if (config_connector->possible_encoders.linked_object_bitmap == 201 0) { 202 DRM_WARN( 203 "Vkms configfs created connector %s has no linked encoders", 204 item->ci_name); 205 } 206 } 207 208 // 3. encoders 209 list_for_each_entry(item, &configfs->encoders_group.cg_children, 210 ci_entry) { 211 struct vkms_config_encoder *config_encoder = 212 item_to_config_encoder(item); 213 if (config_encoder->possible_crtcs.linked_object_bitmap == 0) { 214 DRM_WARN( 215 "Vkms configfs created encoder %s has no linked crtcs", 216 item->ci_name); 217 } 218 } 219 220 // 4. crtcs only require a primary plane to function, this is checked during 221 // output initialization and returns an error. 222 } 223 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
