Hi Tvrtko, kernel test robot noticed the following build errors:
[auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on v6.16-rc5 next-20250708] [cannot apply to drm-exynos/exynos-drm-next linus/master drm/drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip] [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/Tvrtko-Ursulin/drm-sched-Add-some-scheduling-quality-unit-tests/20250708-180519 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20250708095147.73366-2-tvrtko.ursulin%40igalia.com patch subject: [PATCH v6 01/15] drm/sched: Add some scheduling quality unit tests config: powerpc-randconfig-001-20250709 (https://download.01.org/0day-ci/archive/20250709/[email protected]/config) compiler: powerpc-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250709/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): powerpc-linux-ld: drivers/gpu/drm/scheduler/tests/tests_scheduler.o: in function `drm_sched_client_work': >> drivers/gpu/drm/scheduler/tests/tests_scheduler.c:419: undefined reference >> to `__divdi3' vim +419 drivers/gpu/drm/scheduler/tests/tests_scheduler.c 409 410 static void drm_sched_client_work(struct kthread_work *work) 411 { 412 struct test_client *client = container_of(work, typeof(*client), work); 413 const long sync_wait = MAX_SCHEDULE_TIMEOUT; 414 unsigned int cycle, work_us, period_us; 415 struct drm_mock_sched_job *job = NULL; 416 417 work_us = client->params.job_cnt * client->params.job_us; 418 period_us = work_us + client->params.wait_us; > 419 client->cycles = DIV_ROUND_UP(ktime_to_us(client->duration), > period_us); 420 client->ideal_duration = us_to_ktime(client->cycles * period_us); 421 422 client->start = ktime_get(); 423 424 for (cycle = 0; cycle < client->cycles; cycle++) { 425 unsigned int batch; 426 unsigned long us; 427 ktime_t t; 428 429 if (READ_ONCE(client->done)) 430 break; 431 432 t = ktime_get(); 433 for (batch = 0; batch < client->params.job_cnt; batch++) { 434 job = drm_mock_sched_job_new(client->test, 435 client->entity); 436 drm_mock_sched_job_set_duration_us(job, 437 client->params.job_us); 438 drm_mock_sched_job_submit(job); 439 } 440 441 if (client->params.sync) 442 drm_mock_sched_job_wait_finished(job, sync_wait); 443 444 t = ktime_sub(ktime_get(), t); 445 us = ktime_to_us(t); 446 update_stats(&client->cycle_time, cycle, us); 447 if (ktime_to_us(t) >= (long)work_us) 448 us = ktime_to_us(t) - work_us; 449 else if (WARN_ON_ONCE(client->params.sync)) 450 us = 0; 451 update_stats(&client->latency_time, cycle, us); 452 WRITE_ONCE(client->cycle, cycle); 453 454 if (READ_ONCE(client->done)) 455 break; 456 457 if (client->params.wait_us) 458 fsleep(client->params.wait_us); 459 else 460 cond_resched(); 461 } 462 463 client->done = drm_mock_sched_job_wait_finished(job, sync_wait); 464 client->end = ktime_get(); 465 } 466 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
