Hi Arseniy,

[auto build test WARNING on tip/sched/core]
[also build test WARNING on v4.3 next-20151106]

url:    
https://github.com/0day-ci/linux/commits/Arseniy-Krasnov/High-performance-balancing-logic-for-big-LITTLE/20151106-200901
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

   include/linux/init.h:1: warning: no structured comments found
>> kernel/sched/fair.c:7198: warning: No description found for parameter 'p'
>> kernel/sched/fair.c:7198: warning: Excess function parameter 'pm' 
>> description in 'detach_specified_task'
   kernel/sys.c:1: warning: no structured comments found
   drivers/dma-buf/seqno-fence.c:1: warning: no structured comments found
   drivers/dma-buf/reservation.c:1: warning: no structured comments found
   include/linux/reservation.h:1: warning: no structured comments found
   include/media/v4l2-dv-timings.h:29: warning: cannot understand function 
prototype: 'const struct v4l2_dv_timings v4l2_dv_timings_presets[]; '
   include/media/v4l2-dv-timings.h:147: warning: No description found for 
parameter 'frame_height'
   include/media/v4l2-dv-timings.h:147: warning: No description found for 
parameter 'hfreq'
   include/media/v4l2-dv-timings.h:147: warning: No description found for 
parameter 'vsync'
   include/media/v4l2-dv-timings.h:147: warning: No description found for 
parameter 'active_width'
   include/media/v4l2-dv-timings.h:147: warning: No description found for 
parameter 'polarities'
   include/media/v4l2-dv-timings.h:147: warning: No description found for 
parameter 'interlaced'
   include/media/v4l2-dv-timings.h:147: warning: No description found for 
parameter 'fmt'
   include/media/v4l2-dv-timings.h:171: warning: No description found for 
parameter 'frame_height'
   include/media/v4l2-dv-timings.h:171: warning: No description found for 
parameter 'hfreq'
   include/media/v4l2-dv-timings.h:171: warning: No description found for 
parameter 'vsync'
   include/media/v4l2-dv-timings.h:171: warning: No description found for 
parameter 'polarities'
   include/media/v4l2-dv-timings.h:171: warning: No description found for 
parameter 'interlaced'
   include/media/v4l2-dv-timings.h:171: warning: No description found for 
parameter 'aspect'
   include/media/v4l2-dv-timings.h:171: warning: No description found for 
parameter 'fmt'
   include/media/v4l2-dv-timings.h:184: warning: No description found for 
parameter 'hor_landscape'
   include/media/v4l2-dv-timings.h:184: warning: No description found for 
parameter 'vert_portrait'
   include/media/videobuf2-core.h:112: warning: No description found for 
parameter 'get_dmabuf'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_alloc'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_put'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_get_dmabuf'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_get_userptr'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_put_userptr'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_prepare'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_finish'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_attach_dmabuf'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_detach_dmabuf'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_map_dmabuf'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_unmap_dmabuf'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_vaddr'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_cookie'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_num_users'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_mem_mmap'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_buf_init'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_buf_prepare'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_buf_finish'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_buf_cleanup'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_buf_queue'
   include/media/videobuf2-core.h:233: warning: No description found for 
parameter 'cnt_buf_done'
   drivers/media/dvb-core/dvbdev.h:199: warning: Excess function parameter 
'device' description in 'dvb_register_device'
   drivers/media/dvb-core/dvbdev.h:199: warning: Excess function parameter 
'adapter_nums' description in 'dvb_register_device'
   include/linux/hsi/hsi.h:150: warning: Excess struct/union/enum/typedef 
member 'e_handler' description in 'hsi_client'
   include/linux/hsi/hsi.h:150: warning: Excess struct/union/enum/typedef 
member 'pclaimed' description in 'hsi_client'
   include/linux/hsi/hsi.h:150: warning: Excess struct/union/enum/typedef 
member 'nb' description in 'hsi_client'

vim +/p +7198 kernel/sched/fair.c

  7182          if (task_running(env->src_rq, p)) {
  7183                  schedstat_inc(p, 
se.statistics.nr_failed_migrations_running);
  7184                  return 0;
  7185          }
  7186          return 1;
  7187  }
  7188  
  7189  /**
  7190   * detach_specified_task(): Detaches specified task.
  7191   * @pm: Task to move.
  7192   * @env: Migration parameters.
  7193   *
  7194   * Returns moved task.
  7195   */
  7196  static struct task_struct *
  7197  detach_specified_task(struct task_struct *p, struct lb_env *env)
> 7198  {
  7199          lockdep_assert_held(&env->src_rq->lock);
  7200  
  7201          /* If task to move falls asleep, so don't scan runqueue and 
return */
  7202          if (p->se.migrate_candidate == 0)
  7203                  return 0;
  7204  
  7205          if (throttled_lb_pair(task_group(p), env->src_rq->cpu, 
env->dst_cpu))
  7206                  goto exit;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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