* Re: [PATCH V11 28/47] drm/amd/display: Add support for sRGB EOTF in BLND block
[not found] <20250815035047.3319284-29-alex.hung@amd.com>
@ 2025-08-16 2:21 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2025-08-16 2:21 UTC (permalink / raw)
To: Alex Hung, dri-devel, amd-gfx
Cc: llvm, oe-kbuild-all, wayland-devel, harry.wentland, alex.hung,
leo.liu, ville.syrjala, pekka.paalanen, contact, mwen, jadahl,
sebastian.wick, shashank.sharma, agoins, joshua, mdaenzer,
aleixpol, xaver.hugl, victoria, daniel, uma.shankar, quic_naseer,
quic_cbraga, quic_abhinavk, marcan, Liviu.Dudau, sashamcintosh,
chaitanya.kumar.borah, louis.chauvet, mcanal
Hi Alex,
kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-exynos/exynos-drm-next]
[also build test WARNING on linus/master v6.17-rc1 next-20250815]
[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/Alex-Hung/drm-Add-helper-for-conversion-from-signed-magnitude/20250815-120435
base: https://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git exynos-drm-next
patch link: https://lore.kernel.org/r/20250815035047.3319284-29-alex.hung%40amd.com
patch subject: [PATCH V11 28/47] drm/amd/display: Add support for sRGB EOTF in BLND block
config: arm64-randconfig-002-20250816 (https://download.01.org/0day-ci/archive/20250816/202508161043.tvyKbLyZ-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 93d24b6b7b148c47a2fa228a4ef31524fa1d9f3f)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250816/202508161043.tvyKbLyZ-lkp@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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508161043.tvyKbLyZ-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c:1295:35: warning: variable 'blend_lut' is uninitialized when used here [-Wuninitialized]
1295 | return __set_input_tf(NULL, tf, blend_lut, blend_size);
| ^~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c:1276:39: note: initialize the variable 'blend_lut' to silence this warning
1276 | const struct drm_color_lut *blend_lut;
| ^
| = NULL
1 warning generated.
vim +/blend_lut +1295 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_color.c
1272
1273 struct dc_transfer_func *tf = &dc_plane_state->blend_tf;
1274 struct drm_colorop *colorop = colorop_state->colorop;
1275 struct drm_device *drm = colorop->dev;
1276 const struct drm_color_lut *blend_lut;
1277 uint32_t blend_size = 0;
1278
1279 if (colorop->type != DRM_COLOROP_1D_CURVE &&
1280 colorop_state->curve_1d_type != DRM_COLOROP_1D_CURVE_SRGB_EOTF)
1281 return -EINVAL;
1282
1283 if (colorop_state->bypass) {
1284 tf->type = TF_TYPE_BYPASS;
1285 tf->tf = TRANSFER_FUNCTION_LINEAR;
1286 return 0;
1287 }
1288
1289 drm_dbg(drm, "Blend colorop with ID: %d\n", colorop->base.id);
1290
1291 if (colorop->type == DRM_COLOROP_1D_CURVE) {
1292 tf->type = TF_TYPE_DISTRIBUTED_POINTS;
1293 tf->tf = amdgpu_colorop_tf_to_dc_tf(colorop_state->curve_1d_type);
1294 tf->sdr_ref_white_level = SDR_WHITE_LEVEL_INIT_VALUE;
> 1295 return __set_input_tf(NULL, tf, blend_lut, blend_size);
1296 }
1297
1298 return -EINVAL;
1299 }
1300
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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