Hi Ville, kernel test robot noticed the following build warnings:
[auto build test WARNING on linus/master] [also build test WARNING on v6.15-rc1 next-20250410] [cannot apply to drm-exynos/exynos-drm-next tegra/for-next rmk-arm/drm-armada-devel rmk-arm/drm-armada-fixes] [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/Ville-Syrjala/drm-Pass-pixel_format-modifier-to-get_format_info/20250411-005845 base: linus/master patch link: https://lore.kernel.org/r/20250410163218.15130-5-ville.syrjala%40linux.intel.com patch subject: [PATCH 04/19] drm: Pass the format info to .fb_create() config: hexagon-randconfig-001-20250411 (https://download.01.org/0day-ci/archive/20250411/202504110434.qqdqu4gu-...@intel.com/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250411/202504110434.qqdqu4gu-...@intel.com/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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202504110434.qqdqu4gu-...@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/drm_gem_framebuffer_helper.c:287: warning: Function >> parameter or struct member 'info' not described in 'drm_gem_fb_create' >> drivers/gpu/drm/drm_gem_framebuffer_helper.c:326: warning: Function >> parameter or struct member 'info' not described in >> 'drm_gem_fb_create_with_dirty' vim +287 drivers/gpu/drm/drm_gem_framebuffer_helper.c 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 260 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 261 /** 2e187b2099034a2 Noralf Trønnes 2017-09-22 262 * drm_gem_fb_create() - Helper function for the 2e187b2099034a2 Noralf Trønnes 2017-09-22 263 * &drm_mode_config_funcs.fb_create callback 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 264 * @dev: DRM device 2e187b2099034a2 Noralf Trønnes 2017-09-22 265 * @file: DRM file that holds the GEM handle(s) backing the framebuffer 2e187b2099034a2 Noralf Trønnes 2017-09-22 266 * @mode_cmd: Metadata from the userspace framebuffer creation request 2e187b2099034a2 Noralf Trønnes 2017-09-22 267 * 2e187b2099034a2 Noralf Trønnes 2017-09-22 268 * This function creates a new framebuffer object described by 2e187b2099034a2 Noralf Trønnes 2017-09-22 269 * &drm_mode_fb_cmd2. This description includes handles for the buffer(s) 2e187b2099034a2 Noralf Trønnes 2017-09-22 270 * backing the framebuffer. 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 271 * 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 272 * If your hardware has special alignment or pitch requirements these should be 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 273 * checked before calling this function. The function does buffer size dbd62e16fd53d37 Noralf Trønnes 2019-01-15 274 * validation. Use drm_gem_fb_create_with_dirty() if you need framebuffer dbd62e16fd53d37 Noralf Trønnes 2019-01-15 275 * flushing. 2e187b2099034a2 Noralf Trønnes 2017-09-22 276 * 2e187b2099034a2 Noralf Trønnes 2017-09-22 277 * Drivers can use this as their &drm_mode_config_funcs.fb_create callback. 2e187b2099034a2 Noralf Trønnes 2017-09-22 278 * The ADDFB2 IOCTL calls into this callback. 2e187b2099034a2 Noralf Trønnes 2017-09-22 279 * 2e187b2099034a2 Noralf Trønnes 2017-09-22 280 * Returns: 2e187b2099034a2 Noralf Trønnes 2017-09-22 281 * Pointer to a &drm_framebuffer on success or an error pointer on failure. 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 282 */ 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 283 struct drm_framebuffer * 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 284 drm_gem_fb_create(struct drm_device *dev, struct drm_file *file, 7b2bf36de2fd436 Ville Syrjälä 2025-04-10 285 const struct drm_format_info *info, 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 286 const struct drm_mode_fb_cmd2 *mode_cmd) 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 @287 { 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 288 return drm_gem_fb_create_with_funcs(dev, file, mode_cmd, 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 289 &drm_gem_fb_funcs); 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 290 } 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 291 EXPORT_SYMBOL_GPL(drm_gem_fb_create); 4c3dbb2c312c9fa Noralf Trønnes 2017-08-13 292 dbd62e16fd53d37 Noralf Trønnes 2019-01-15 293 static const struct drm_framebuffer_funcs drm_gem_fb_funcs_dirtyfb = { dbd62e16fd53d37 Noralf Trønnes 2019-01-15 294 .destroy = drm_gem_fb_destroy, dbd62e16fd53d37 Noralf Trønnes 2019-01-15 295 .create_handle = drm_gem_fb_create_handle, dbd62e16fd53d37 Noralf Trønnes 2019-01-15 296 .dirty = drm_atomic_helper_dirtyfb, dbd62e16fd53d37 Noralf Trønnes 2019-01-15 297 }; dbd62e16fd53d37 Noralf Trønnes 2019-01-15 298 dbd62e16fd53d37 Noralf Trønnes 2019-01-15 299 /** dbd62e16fd53d37 Noralf Trønnes 2019-01-15 300 * drm_gem_fb_create_with_dirty() - Helper function for the dbd62e16fd53d37 Noralf Trønnes 2019-01-15 301 * &drm_mode_config_funcs.fb_create callback dbd62e16fd53d37 Noralf Trønnes 2019-01-15 302 * @dev: DRM device dbd62e16fd53d37 Noralf Trønnes 2019-01-15 303 * @file: DRM file that holds the GEM handle(s) backing the framebuffer dbd62e16fd53d37 Noralf Trønnes 2019-01-15 304 * @mode_cmd: Metadata from the userspace framebuffer creation request dbd62e16fd53d37 Noralf Trønnes 2019-01-15 305 * dbd62e16fd53d37 Noralf Trønnes 2019-01-15 306 * This function creates a new framebuffer object described by dbd62e16fd53d37 Noralf Trønnes 2019-01-15 307 * &drm_mode_fb_cmd2. This description includes handles for the buffer(s) dbd62e16fd53d37 Noralf Trønnes 2019-01-15 308 * backing the framebuffer. drm_atomic_helper_dirtyfb() is used for the dirty dbd62e16fd53d37 Noralf Trønnes 2019-01-15 309 * callback giving framebuffer flushing through the atomic machinery. Use dbd62e16fd53d37 Noralf Trønnes 2019-01-15 310 * drm_gem_fb_create() if you don't need the dirty callback. dbd62e16fd53d37 Noralf Trønnes 2019-01-15 311 * The function does buffer size validation. dbd62e16fd53d37 Noralf Trønnes 2019-01-15 312 * dbd62e16fd53d37 Noralf Trønnes 2019-01-15 313 * Drivers should also call drm_plane_enable_fb_damage_clips() on all planes dbd62e16fd53d37 Noralf Trønnes 2019-01-15 314 * to enable userspace to use damage clips also with the ATOMIC IOCTL. dbd62e16fd53d37 Noralf Trønnes 2019-01-15 315 * dbd62e16fd53d37 Noralf Trønnes 2019-01-15 316 * Drivers can use this as their &drm_mode_config_funcs.fb_create callback. dbd62e16fd53d37 Noralf Trønnes 2019-01-15 317 * The ADDFB2 IOCTL calls into this callback. dbd62e16fd53d37 Noralf Trønnes 2019-01-15 318 * dbd62e16fd53d37 Noralf Trønnes 2019-01-15 319 * Returns: dbd62e16fd53d37 Noralf Trønnes 2019-01-15 320 * Pointer to a &drm_framebuffer on success or an error pointer on failure. dbd62e16fd53d37 Noralf Trønnes 2019-01-15 321 */ dbd62e16fd53d37 Noralf Trønnes 2019-01-15 322 struct drm_framebuffer * dbd62e16fd53d37 Noralf Trønnes 2019-01-15 323 drm_gem_fb_create_with_dirty(struct drm_device *dev, struct drm_file *file, 7b2bf36de2fd436 Ville Syrjälä 2025-04-10 324 const struct drm_format_info *info, dbd62e16fd53d37 Noralf Trønnes 2019-01-15 325 const struct drm_mode_fb_cmd2 *mode_cmd) dbd62e16fd53d37 Noralf Trønnes 2019-01-15 @326 { dbd62e16fd53d37 Noralf Trønnes 2019-01-15 327 return drm_gem_fb_create_with_funcs(dev, file, mode_cmd, dbd62e16fd53d37 Noralf Trønnes 2019-01-15 328 &drm_gem_fb_funcs_dirtyfb); dbd62e16fd53d37 Noralf Trønnes 2019-01-15 329 } dbd62e16fd53d37 Noralf Trønnes 2019-01-15 330 EXPORT_SYMBOL_GPL(drm_gem_fb_create_with_dirty); dbd62e16fd53d37 Noralf Trønnes 2019-01-15 331 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
