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 v6.12-rc1 next-20241004] [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/20241004-040629 base: git://anongit.freedesktop.org/drm/drm drm-next patch link: https://lore.kernel.org/r/20241003200129.1732122-22-harry.wentland%40amd.com patch subject: [PATCH v6 21/44] drm/vkms: Add tests for CTM handling config: csky-randconfig-r112-20241005 (https://download.01.org/0day-ci/archive/20241005/202410051850.cGJoBKkg-lkp@xxxxxxxxx/config) compiler: csky-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20241005/202410051850.cGJoBKkg-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/202410051850.cGJoBKkg-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) drivers/gpu/drm/vkms/tests/vkms_color_test.c:34:29: sparse: sparse: symbol 'test_linear_lut' was not declared. Should it be static? >> drivers/gpu/drm/vkms/tests/vkms_color_test.c:193:32: sparse: sparse: symbol 'test_matrix_3x4_50_desat' was not declared. Should it be static? >> drivers/gpu/drm/vkms/tests/vkms_color_test.c:259:32: sparse: sparse: symbol 'test_matrix_3x4_bt709_enc' was not declared. Should it be static? vim +/test_matrix_3x4_50_desat +193 drivers/gpu/drm/vkms/tests/vkms_color_test.c 192 > 193 const struct drm_color_ctm_3x4 test_matrix_3x4_50_desat = { { 194 FIXPT_HALF, FIXPT_QUARTER, FIXPT_QUARTER, 0, 195 FIXPT_QUARTER, FIXPT_HALF, FIXPT_QUARTER, 0, 196 FIXPT_QUARTER, FIXPT_QUARTER, FIXPT_HALF, 0 197 } }; 198 199 static void vkms_color_ctm_3x4_50_desat(struct kunit *test) 200 { 201 struct pixel_argb_s32 ref, out; 202 203 /* full white */ 204 ref.a = 0xffff; 205 ref.r = 0xffff; 206 ref.g = 0xffff; 207 ref.b = 0xffff; 208 209 memcpy(&out, &ref, sizeof(out)); 210 apply_3x4_matrix(&out, &test_matrix_3x4_50_desat); 211 212 KUNIT_EXPECT_MEMEQ(test, &ref, &out, sizeof(out)); 213 214 /* full black */ 215 ref.a = 0xffff; 216 ref.r = 0x0; 217 ref.g = 0x0; 218 ref.b = 0x0; 219 220 memcpy(&out, &ref, sizeof(out)); 221 apply_3x4_matrix(&out, &test_matrix_3x4_50_desat); 222 223 KUNIT_EXPECT_MEMEQ(test, &ref, &out, sizeof(out)); 224 225 /* 50% grey */ 226 ref.a = 0xffff; 227 ref.r = 0x8000; 228 ref.g = 0x8000; 229 ref.b = 0x8000; 230 231 memcpy(&out, &ref, sizeof(out)); 232 apply_3x4_matrix(&out, &test_matrix_3x4_50_desat); 233 234 KUNIT_EXPECT_MEMEQ(test, &ref, &out, sizeof(out)); 235 236 /* full red to 50% desat */ 237 ref.a = 0xffff; 238 ref.r = 0x8000; 239 ref.g = 0x4000; 240 ref.b = 0x4000; 241 242 out.a = 0xffff; 243 out.r = 0xffff; 244 out.g = 0x0; 245 out.b = 0x0; 246 247 apply_3x4_matrix(&out, &test_matrix_3x4_50_desat); 248 249 KUNIT_EXPECT_MEMEQ(test, &ref, &out, sizeof(out)); 250 } 251 252 /* 253 * BT.709 encoding matrix 254 * 255 * Values printed from within IGT when converting 256 * igt_matrix_3x4_bt709_enc to the fixed-point format expected 257 * by DRM/KMS. 258 */ > 259 const struct drm_color_ctm_3x4 test_matrix_3x4_bt709_enc = { { 260 0x00000000366cf400ull, 0x00000000b7175900ull, 0x0000000127bb300ull, 0, 261 0x800000001993b3a0ull, 0x800000005609fe80ull, 0x000000006f9db200ull, 0, 262 0x000000009d70a400ull, 0x800000008f011100ull, 0x800000000e6f9330ull, 0 263 } }; 264 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
