Hi Andrzej, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on linuxtv-media/master] [also build test WARNING on next-20210420] [cannot apply to v5.12-rc8] [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] url: https://github.com/0day-ci/linux/commits/Andrzej-Pietrasiewicz/media-rkvd... base: git://linuxtv.org/media_tree.git master config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 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 # https://github.com/0day-ci/linux/commit/df37e41d68d9ab1326f8a5a54d001d9a2... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Andrzej-Pietrasiewicz/media-rkvdec-Fix-buf_prepare/20210421-175601 git checkout df37e41d68d9ab1326f8a5a54d001d9a241b4079 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=ia64 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/staging/media/rkvdec/rkvdec-vp9.c: In function 'init_intra_only_probs': 1357 | const struct v4l2_ctrl_vp9_frame_decode_params *dec_params; | ^~~~~~~~~~ drivers/staging/media/rkvdec/rkvdec-vp9.c: In function 'init_inter_probs': drivers/staging/media/rkvdec/rkvdec-vp9.c:1412:50: warning: variable 'dec_params' set but not used [-Wunused-but-set-variable] 1412 | const struct v4l2_ctrl_vp9_frame_decode_params *dec_params; | ^~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for FRAME_POINTER Depends on DEBUG_KERNEL && (M68K || UML || SUPERH) || ARCH_WANT_FRAME_POINTERS Selected by - FAULT_INJECTION_STACKTRACE_FILTER && FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT && !X86_64 && !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM && !ARC && !X86 vim +/dec_params +1357 drivers/staging/media/rkvdec/rkvdec-vp9.c 1353 1354 static void init_intra_only_probs(struct rkvdec_ctx *ctx, 1355 const struct rkvdec_vp9_run *run) 1356 { 1358 struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv; 1359 struct rkvdec_vp9_priv_tbl *tbl = vp9_ctx->priv_tbl.cpu; 1360 struct rkvdec_vp9_intra_only_frame_probs *rkprobs; 1361 const struct rkvdec_vp9_frame_context *probs; 1362 unsigned int i, j, k, m; 1363 1364 rkprobs = &tbl->probs.intra_only; 1365 dec_params = run->decode_params; 1366 probs = &vp9_ctx->probability_tables; 1367 1368 /* 1369 * intra only 149 x 128 bits ,aligned to 152 x 128 bits coeff related 1370 * prob 64 x 128 bits 1371 */ 1372 for (i = 0; i < ARRAY_SIZE(probs->coef); i++) { 1373 for (j = 0; j < ARRAY_SIZE(probs->coef[0]); j++) 1374 write_coeff_plane(probs->coef[i][j][0], 1375 rkprobs->coef_intra[i][j]); 1376 } 1377 1378 /* intra mode prob 80 x 128 bits */ 1379 for (i = 0; i < ARRAY_SIZE(vp9_kf_y_mode_prob); i++) { 1380 u32 byte_count = 0; 1381 int idx = 0; 1382 1383 /* vp9_kf_y_mode_prob */ 1384 for (j = 0; j < ARRAY_SIZE(vp9_kf_y_mode_prob[0]); j++) { 1385 for (k = 0; k < ARRAY_SIZE(vp9_kf_y_mode_prob[0][0]); 1386 k++) { 1387 u8 val = vp9_kf_y_mode_prob[i][j][k]; 1388 1389 rkprobs->intra_mode[i].y_mode[idx++] = val; 1390 byte_count++; 1391 if (byte_count == 27) { 1392 byte_count = 0; 1393 idx += 5; 1394 } 1395 } 1396 } 1397 1398 idx = 0; 1399 if (i < 4) { 1400 for (m = 0; m < (i < 3 ? 23 : 21); m++) { 1401 const u8 *ptr = (const u8 *)kf_uv_mode_prob; 1402 1403 rkprobs->intra_mode[i].uv_mode[idx++] = ptr[i * 23 + m]; 1404 } 1405 } 1406 } 1407 } 1408 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org