Hi Harry, kernel test robot noticed the following build warnings: [auto build test WARNING on drm/drm-next] [also build test WARNING on drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master v6.11-rc4 next-20240820] [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/Harry-Wentland/drm-Add-helper-for-conversion-from-signed-magnitude/20240820-050138 base: git://anongit.freedesktop.org/drm/drm drm-next patch link: https://lore.kernel.org/r/20240819205714.316380-29-harry.wentland%40amd.com patch subject: [PATCH v5 28/44] drm/amd/display: Add support for sRGB Inverse EOTF in SHAPER block config: x86_64-randconfig-003-20240821 (https://download.01.org/0day-ci/archive/20240821/202408211241.xAvubshv-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240821/202408211241.xAvubshv-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/202408211241.xAvubshv-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c:1232:42: warning: variable 'shaper_size' is uninitialized when used here [-Wuninitialized] 1232 | return __set_output_tf(tf, shaper_lut, shaper_size, false); | ^~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c:1214:22: note: initialize the variable 'shaper_size' to silence this warning 1214 | uint32_t shaper_size; | ^ | = 0 1 warning generated. vim +/shaper_size +1232 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c 1205 1206 static int 1207 __set_colorop_in_shaper_1d_curve(struct dc_plane_state *dc_plane_state, 1208 struct drm_colorop_state *colorop_state) 1209 { 1210 struct dc_transfer_func *tf = &dc_plane_state->in_shaper_func; 1211 struct drm_colorop *colorop = colorop_state->colorop; 1212 struct drm_device *drm = colorop->dev; 1213 const struct drm_color_lut *shaper_lut; 1214 uint32_t shaper_size; 1215 1216 if (colorop->type != DRM_COLOROP_1D_CURVE && 1217 colorop_state->curve_1d_type != DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF) 1218 return -EINVAL; 1219 1220 if (colorop_state->bypass) { 1221 tf->type = TF_TYPE_BYPASS; 1222 tf->tf = TRANSFER_FUNCTION_LINEAR; 1223 return 0; 1224 } 1225 1226 drm_dbg(drm, "Shaper colorop with ID: %d\n", colorop->base.id); 1227 1228 if (colorop->type == DRM_COLOROP_1D_CURVE) { 1229 tf->type = TF_TYPE_DISTRIBUTED_POINTS; 1230 tf->tf = amdgpu_colorop_tf_to_dc_tf(colorop_state->curve_1d_type); 1231 tf->sdr_ref_white_level = SDR_WHITE_LEVEL_INIT_VALUE; > 1232 return __set_output_tf(tf, shaper_lut, shaper_size, false); 1233 } 1234 1235 return -EINVAL; 1236 } 1237 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
