Hi Alexander, kernel test robot noticed the following build errors: [auto build test ERROR on tip/x86/core] [also build test ERROR on arm64/for-next/core akpm-mm/mm-everything linus/master v6.7-rc5 next-20231213] [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/Alexander-Graf/mm-memblock-Add-support-for-scratch-memory/20231213-080941 base: tip/x86/core patch link: https://lore.kernel.org/r/20231213000452.88295-9-graf%40amazon.com patch subject: [PATCH 08/15] tracing: Introduce names for ring buffers config: i386-buildonly-randconfig-003-20231213 (https://download.01.org/0day-ci/archive/20231213/202312131922.5dJORQu4-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231213/202312131922.5dJORQu4-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/202312131922.5dJORQu4-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> kernel/trace/ring_buffer_benchmark.c:435:53: error: too few arguments provided to function-like macro invocation buffer = ring_buffer_alloc(1000000, RB_FL_OVERWRITE); ^ include/linux/ring_buffer.h:96:9: note: macro 'ring_buffer_alloc' defined here #define ring_buffer_alloc(name, size, flags) \ ^ >> kernel/trace/ring_buffer_benchmark.c:435:11: error: use of undeclared identifier 'ring_buffer_alloc'; did you mean '__ring_buffer_alloc'? buffer = ring_buffer_alloc(1000000, RB_FL_OVERWRITE); ^~~~~~~~~~~~~~~~~ __ring_buffer_alloc include/linux/ring_buffer.h:88:1: note: '__ring_buffer_alloc' declared here __ring_buffer_alloc(const char *name, unsigned long size, unsigned flags, ^ 2 errors generated. -- >> kernel/trace/ring_buffer.c:6096:65: error: too few arguments provided to function-like macro invocation buffer = ring_buffer_alloc(RB_TEST_BUFFER_SIZE, RB_FL_OVERWRITE); ^ include/linux/ring_buffer.h:96:9: note: macro 'ring_buffer_alloc' defined here #define ring_buffer_alloc(name, size, flags) \ ^ >> kernel/trace/ring_buffer.c:6096:11: error: use of undeclared identifier 'ring_buffer_alloc'; did you mean '__ring_buffer_alloc'? buffer = ring_buffer_alloc(RB_TEST_BUFFER_SIZE, RB_FL_OVERWRITE); ^~~~~~~~~~~~~~~~~ __ring_buffer_alloc kernel/trace/ring_buffer.c:1873:19: note: '__ring_buffer_alloc' declared here EXPORT_SYMBOL_GPL(__ring_buffer_alloc); ^ 2 errors generated. vim +435 kernel/trace/ring_buffer_benchmark.c 5092dbc96f3acd Steven Rostedt 2009-05-05 429 5092dbc96f3acd Steven Rostedt 2009-05-05 430 static int __init ring_buffer_benchmark_init(void) 5092dbc96f3acd Steven Rostedt 2009-05-05 431 { 5092dbc96f3acd Steven Rostedt 2009-05-05 432 int ret; 5092dbc96f3acd Steven Rostedt 2009-05-05 433 5092dbc96f3acd Steven Rostedt 2009-05-05 434 /* make a one meg buffer in overwite mode */ 5092dbc96f3acd Steven Rostedt 2009-05-05 @435 buffer = ring_buffer_alloc(1000000, RB_FL_OVERWRITE); 5092dbc96f3acd Steven Rostedt 2009-05-05 436 if (!buffer) 5092dbc96f3acd Steven Rostedt 2009-05-05 437 return -ENOMEM; 5092dbc96f3acd Steven Rostedt 2009-05-05 438 5092dbc96f3acd Steven Rostedt 2009-05-05 439 if (!disable_reader) { 5092dbc96f3acd Steven Rostedt 2009-05-05 440 consumer = kthread_create(ring_buffer_consumer_thread, 5092dbc96f3acd Steven Rostedt 2009-05-05 441 NULL, "rb_consumer"); 5092dbc96f3acd Steven Rostedt 2009-05-05 442 ret = PTR_ERR(consumer); 5092dbc96f3acd Steven Rostedt 2009-05-05 443 if (IS_ERR(consumer)) 5092dbc96f3acd Steven Rostedt 2009-05-05 444 goto out_fail; 5092dbc96f3acd Steven Rostedt 2009-05-05 445 } 5092dbc96f3acd Steven Rostedt 2009-05-05 446 5092dbc96f3acd Steven Rostedt 2009-05-05 447 producer = kthread_run(ring_buffer_producer_thread, 5092dbc96f3acd Steven Rostedt 2009-05-05 448 NULL, "rb_producer"); 5092dbc96f3acd Steven Rostedt 2009-05-05 449 ret = PTR_ERR(producer); 5092dbc96f3acd Steven Rostedt 2009-05-05 450 5092dbc96f3acd Steven Rostedt 2009-05-05 451 if (IS_ERR(producer)) 5092dbc96f3acd Steven Rostedt 2009-05-05 452 goto out_kill; 5092dbc96f3acd Steven Rostedt 2009-05-05 453 98e4833ba3c314 Ingo Molnar 2009-11-23 454 /* 98e4833ba3c314 Ingo Molnar 2009-11-23 455 * Run them as low-prio background tasks by default: 98e4833ba3c314 Ingo Molnar 2009-11-23 456 */ 7ac07434048001 Steven Rostedt 2009-11-25 457 if (!disable_reader) { 4fd5750af02ab7 Peter Zijlstra 2020-07-20 458 if (consumer_fifo >= 2) 4fd5750af02ab7 Peter Zijlstra 2020-07-20 459 sched_set_fifo(consumer); 4fd5750af02ab7 Peter Zijlstra 2020-07-20 460 else if (consumer_fifo == 1) 4fd5750af02ab7 Peter Zijlstra 2020-07-20 461 sched_set_fifo_low(consumer); 4fd5750af02ab7 Peter Zijlstra 2020-07-20 462 else 7ac07434048001 Steven Rostedt 2009-11-25 463 set_user_nice(consumer, consumer_nice); 7ac07434048001 Steven Rostedt 2009-11-25 464 } 7ac07434048001 Steven Rostedt 2009-11-25 465 4fd5750af02ab7 Peter Zijlstra 2020-07-20 466 if (producer_fifo >= 2) 4fd5750af02ab7 Peter Zijlstra 2020-07-20 467 sched_set_fifo(producer); 4fd5750af02ab7 Peter Zijlstra 2020-07-20 468 else if (producer_fifo == 1) 4fd5750af02ab7 Peter Zijlstra 2020-07-20 469 sched_set_fifo_low(producer); 4fd5750af02ab7 Peter Zijlstra 2020-07-20 470 else 7ac07434048001 Steven Rostedt 2009-11-25 471 set_user_nice(producer, producer_nice); 98e4833ba3c314 Ingo Molnar 2009-11-23 472 5092dbc96f3acd Steven Rostedt 2009-05-05 473 return 0; 5092dbc96f3acd Steven Rostedt 2009-05-05 474 5092dbc96f3acd Steven Rostedt 2009-05-05 475 out_kill: 5092dbc96f3acd Steven Rostedt 2009-05-05 476 if (consumer) 5092dbc96f3acd Steven Rostedt 2009-05-05 477 kthread_stop(consumer); 5092dbc96f3acd Steven Rostedt 2009-05-05 478 5092dbc96f3acd Steven Rostedt 2009-05-05 479 out_fail: 5092dbc96f3acd Steven Rostedt 2009-05-05 480 ring_buffer_free(buffer); 5092dbc96f3acd Steven Rostedt 2009-05-05 481 return ret; 5092dbc96f3acd Steven Rostedt 2009-05-05 482 } 5092dbc96f3acd Steven Rostedt 2009-05-05 483 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
