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charset=us-ascii Content-Disposition: inline tree: https://github.com/alobakin/linux idpf-libie-new head: c61d91d0986f5e0053b7b6ab6edcf67d85b8b52b commit: 1e17d54446b96380fb5c0c22e6a29ec2706b7ce4 [7/46] kthread: allow vararg kthread_{create,run}_on_cpu() config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20240814/202408141012.KhvKaxoh-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240814/202408141012.KhvKaxoh-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202408141012.KhvKaxoh-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/firmware/psci/psci_checker.c:15: drivers/firmware/psci/psci_checker.c: In function 'suspend_tests': >> drivers/firmware/psci/psci_checker.c:401:48: warning: too many arguments for format [-Wformat-extra-args] 401 | "psci_suspend_test"); | ^~~~~~~~~~~~~~~~~~~ include/linux/kthread.h:36:54: note: in definition of macro 'kthread_create_on_cpu' 36 | __kthread_create_on_cpu(threadfn, data, cpu, namefmt, \ | ^~~~~~~ vim +401 drivers/firmware/psci/psci_checker.c ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 366 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 367 static int suspend_tests(void) ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 368 { ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 369 int i, cpu, err = 0; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 370 struct task_struct **threads; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 371 int nb_threads = 0; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 372 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 373 threads = kmalloc_array(nb_available_cpus, sizeof(*threads), ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 374 GFP_KERNEL); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 375 if (!threads) ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 376 return -ENOMEM; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 377 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 378 /* ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 379 * Stop cpuidle to prevent the idle tasks from entering a deep sleep ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 380 * mode, as it might interfere with the suspend threads on other CPUs. ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 381 * This does not prevent the suspend threads from using cpuidle (only ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 382 * the idle tasks check this status). Take the idle lock so that ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 383 * the cpuidle driver and device look-up can be carried out safely. ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 384 */ ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 385 cpuidle_pause_and_lock(); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 386 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 387 for_each_online_cpu(cpu) { ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 388 struct task_struct *thread; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 389 /* Check that cpuidle is available on that CPU. */ ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 390 struct cpuidle_device *dev = per_cpu(cpuidle_devices, cpu); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 391 struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 392 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 393 if (!dev || !drv) { ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 394 pr_warn("cpuidle not available on CPU %d, ignoring\n", ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 395 cpu); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 396 continue; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 397 } ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 398 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 399 thread = kthread_create_on_cpu(suspend_test_thread, ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 400 (void *)(long)cpu, cpu, ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 @401 "psci_suspend_test"); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 402 if (IS_ERR(thread)) ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 403 pr_err("Failed to create kthread on CPU %d\n", cpu); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 404 else ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 405 threads[nb_threads++] = thread; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 406 } ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 407 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 408 if (nb_threads < 1) { ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 409 err = -ENODEV; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 410 goto out; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 411 } ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 412 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 413 atomic_set(&nb_active_threads, nb_threads); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 414 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 415 /* ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 416 * Wake up the suspend threads. To avoid the main thread being preempted ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 417 * before all the threads have been unparked, the suspend threads will ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 418 * wait for the completion of suspend_threads_started. ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 419 */ ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 420 for (i = 0; i < nb_threads; ++i) ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 421 wake_up_process(threads[i]); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 422 complete_all(&suspend_threads_started); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 423 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 424 wait_for_completion(&suspend_threads_done); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 425 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 426 ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 427 /* Stop and destroy all threads, get return status. */ 92e074acf6f769 drivers/firmware/psci/psci_checker.c Jean-Philippe Brucker 2019-06-10 428 for (i = 0; i < nb_threads; ++i) { 92e074acf6f769 drivers/firmware/psci/psci_checker.c Jean-Philippe Brucker 2019-06-10 429 err += kthread_park(threads[i]); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 430 err += kthread_stop(threads[i]); 92e074acf6f769 drivers/firmware/psci/psci_checker.c Jean-Philippe Brucker 2019-06-10 431 } ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 432 out: ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 433 cpuidle_resume_and_unlock(); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 434 kfree(threads); ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 435 return err; ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 436 } ea8b1c4a6019fb drivers/firmware/psci_checker.c Kevin Brodsky 2016-11-08 437 :::::: The code at line 401 was first introduced by commit :::::: ea8b1c4a6019fb96ca8301f0b3ffcb13fb1cd0ae drivers: psci: PSCI checker module :::::: TO: Kevin Brodsky :::::: CC: Arnd Bergmann -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki