Hi Rohit, [auto build test ERROR on tip/sched/core] [also build test ERROR on v4.14-rc1 next-20170920] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Rohit-Jain/sched-Introduce-new-flags-to-sched_setaffinity-to-support-soft-affinity/20170921-140313 config: i386-randconfig-x018-201738 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): kernel//trace/trace_hwlat.c: In function 'move_to_next_cpu': >> kernel//trace/trace_hwlat.c:299:2: error: too few arguments to function >> 'sched_setaffinity' sched_setaffinity(0, current_mask); ^~~~~~~~~~~~~~~~~ In file included from include/linux/kthread.h:5:0, from kernel//trace/trace_hwlat.c:42: include/linux/sched.h:1636:13: note: declared here extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask, ^~~~~~~~~~~~~~~~~ kernel//trace/trace_hwlat.c: In function 'start_kthread': kernel//trace/trace_hwlat.c:372:2: error: too few arguments to function 'sched_setaffinity' sched_setaffinity(kthread->pid, current_mask); ^~~~~~~~~~~~~~~~~ In file included from include/linux/kthread.h:5:0, from kernel//trace/trace_hwlat.c:42: include/linux/sched.h:1636:13: note: declared here extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask, ^~~~~~~~~~~~~~~~~ vim +/sched_setaffinity +299 kernel//trace/trace_hwlat.c 0330f7aa Steven Rostedt (Red Hat 2016-07-15 269) f447c196 Steven Rostedt (VMware 2017-01-31 270) static void move_to_next_cpu(void) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 271) { f447c196 Steven Rostedt (VMware 2017-01-31 272) struct cpumask *current_mask = &save_cpumask; 0330f7aa Steven Rostedt (Red Hat 2016-07-15 273) int next_cpu; 0330f7aa Steven Rostedt (Red Hat 2016-07-15 274) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 275) if (disable_migrate) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 276) return; 0330f7aa Steven Rostedt (Red Hat 2016-07-15 277) /* 0330f7aa Steven Rostedt (Red Hat 2016-07-15 278) * If for some reason the user modifies the CPU affinity 0330f7aa Steven Rostedt (Red Hat 2016-07-15 279) * of this thread, than stop migrating for the duration 0330f7aa Steven Rostedt (Red Hat 2016-07-15 280) * of the current test. 0330f7aa Steven Rostedt (Red Hat 2016-07-15 281) */ 0330f7aa Steven Rostedt (Red Hat 2016-07-15 282) if (!cpumask_equal(current_mask, ¤t->cpus_allowed)) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 283) goto disable; 0330f7aa Steven Rostedt (Red Hat 2016-07-15 284) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 285) get_online_cpus(); 0330f7aa Steven Rostedt (Red Hat 2016-07-15 286) cpumask_and(current_mask, cpu_online_mask, tracing_buffer_mask); 0330f7aa Steven Rostedt (Red Hat 2016-07-15 287) next_cpu = cpumask_next(smp_processor_id(), current_mask); 0330f7aa Steven Rostedt (Red Hat 2016-07-15 288) put_online_cpus(); 0330f7aa Steven Rostedt (Red Hat 2016-07-15 289) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 290) if (next_cpu >= nr_cpu_ids) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 291) next_cpu = cpumask_first(current_mask); 0330f7aa Steven Rostedt (Red Hat 2016-07-15 292) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 293) if (next_cpu >= nr_cpu_ids) /* Shouldn't happen! */ 0330f7aa Steven Rostedt (Red Hat 2016-07-15 294) goto disable; 0330f7aa Steven Rostedt (Red Hat 2016-07-15 295) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 296) cpumask_clear(current_mask); 0330f7aa Steven Rostedt (Red Hat 2016-07-15 297) cpumask_set_cpu(next_cpu, current_mask); 0330f7aa Steven Rostedt (Red Hat 2016-07-15 298) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 @299) sched_setaffinity(0, current_mask); 0330f7aa Steven Rostedt (Red Hat 2016-07-15 300) return; 0330f7aa Steven Rostedt (Red Hat 2016-07-15 301) 0330f7aa Steven Rostedt (Red Hat 2016-07-15 302) disable: 0330f7aa Steven Rostedt (Red Hat 2016-07-15 303) disable_migrate = true; 0330f7aa Steven Rostedt (Red Hat 2016-07-15 304) } 0330f7aa Steven Rostedt (Red Hat 2016-07-15 305) :::::: The code at line 299 was first introduced by commit :::::: 0330f7aa8ee63d0c435c0cb4e47ea06235ee4b7f tracing: Have hwlat trace migrate across tracing_cpumask CPUs :::::: TO: Steven Rostedt (Red Hat) <rost...@goodmis.org> :::::: CC: Steven Rostedt <rost...@goodmis.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
