tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git pending-5.12 head: 733edc1059fd125f1156b8baf5f182e4284fce40 commit: ddd43d539e12f673ed95c4f58cb32fc1e763c747 [83/491] drm/amd/display: Verify Gamma & Degamma LUT sizes in amdgpu_dm_atomic_check config: x86_64-randconfig-a011-20210718 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 5d5b08761f944d5b9822d582378333cc4b36a0a7) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c... git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git git fetch --no-tags sashal-linux-stable pending-5.12 git checkout ddd43d539e12f673ed95c4f58cb32fc1e763c747 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c:293: warning: Function parameter or member 'crtc_state' not described in 'amdgpu_dm_verify_lut_sizes' vim +293 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c 286 287 /** 288 * Verifies that the Degamma and Gamma LUTs attached to the |crtc_state| are of 289 * the expected size. 290 * Returns 0 on success. 291 */ 292 int amdgpu_dm_verify_lut_sizes(const struct drm_crtc_state *crtc_state) 294 const struct drm_color_lut *lut = NULL; 295 uint32_t size = 0; 296 297 lut = __extract_blob_lut(crtc_state->degamma_lut, &size); 298 if (lut && size != MAX_COLOR_LUT_ENTRIES) { 299 DRM_DEBUG_DRIVER( 300 "Invalid Degamma LUT size. Should be %u but got %u.\n", 301 MAX_COLOR_LUT_ENTRIES, size); 302 return -EINVAL; 303 } 304 305 lut = __extract_blob_lut(crtc_state->gamma_lut, &size); 306 if (lut && size != MAX_COLOR_LUT_ENTRIES && 307 size != MAX_COLOR_LEGACY_LUT_ENTRIES) { 308 DRM_DEBUG_DRIVER( 309 "Invalid Gamma LUT size. Should be %u (or %u for legacy) but got %u.\n", 310 MAX_COLOR_LUT_ENTRIES, MAX_COLOR_LEGACY_LUT_ENTRIES, 311 size); 312 return -EINVAL; 313 } 314 315 return 0; 316 } 317 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org