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Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Rob Herring , Steven Rostedt , Andrew Morton , Mark Rutland , Tom Lendacky , Ashish Kalra , James Gowans , Stanislav Kinsburskii , arnd@arndb.de, pbonzini@redhat.com, madvenka@linux.microsoft.com, Anthony Yznaga , Usama Arif , David Woodhouse , Benjamin Herrenschmidt Subject: Re: [PATCH 08/15] tracing: Introduce names for ring buffers Message-ID: <202312131922.5dJORQu4-lkp@intel.com> References: <20231213000452.88295-9-graf@amazon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231213000452.88295-9-graf@amazon.com> X-Rspamd-Queue-Id: DB4321C0013 X-Rspam-User: X-Stat-Signature: m94n9qyw4hj6yezztp6xudxt6qjjdj7w X-Rspamd-Server: rspam01 X-HE-Tag: 1702466591-482948 X-HE-Meta: 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 toU5PYKa XmoifLX9oLiyI4s7yHsoA/S3AH4Li8Cgs/F2RpGGsbnQR5z6Hzt3KDLo6W8pzoVdjd6PmOi83bpFouX8ZoYEkGCRKHjy/f6UAZutwsL7N5TBmiEc/ZjSVoj9oe0bdeoqD47zh5dRmy/jJwXw/rcvZkGGUFFQZO3Hr1fJxlDHIzkdUEZsgIv7mUr2456IryHDDEQu6YM2Y89bPiTBaTeUUmWV8Zm6cGVxcwD2b3Etq//3Ux9txAwafgTWgwZTYShMQnjoQi6yEjxo61lJsMOURWbTX+ylP/CuXOYKk3fNzCwUi1C2a9LcS1d29qoOR9+i/IZiKTxSPmTuHY+AoLAgJOdyN6K7JhMXZkKako+DWl319VCnnQ2dOR/gHoA/y2EvCkrKrdd027CE7+iNbfGLL/9DGV5LASn5NhdyhYVvtlrRN1C/o5YfxSrowRk+xw0m585wXPEb8iZNQ6SJtNGTb0WS1+Q== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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@intel.com/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@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/202312131922.5dJORQu4-lkp@intel.com/ 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