Hi Hans,

FYI, the error/warning still remains.

tree:   https://github.com/Kwiboo/linux-rockchip 
rockchip-5.1-v4l2-work-in-progress-v5.1
head:   a78e6b4b01d43be0f7eeb664f2842a6a0f23ecf4
commit: ad850bb50945beb9f6e82e75093888deb07a267b [9/107] media: vb2: drop 
VB2_BUF_STATE_REQUEUEING
config: riscv-allmodconfig (attached as .config)
compiler: riscv64-linux-gcc (GCC) 8.1.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout ad850bb50945beb9f6e82e75093888deb07a267b
        # save the attached .config to linux build tree
        GCC_VERSION=8.1.0 make.cross ARCH=riscv 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <l...@intel.com>

All errors (new ones prefixed by >>):

   drivers/media/pci/cobalt/cobalt-irq.c: In function 
'cobalt_dma_stream_queue_handler':
>> drivers/media/pci/cobalt/cobalt-irq.c:131:4: error: 
>> 'VB2_BUF_STATE_REQUEUEING' undeclared (first use in this function); did you 
>> mean 'VB2_BUF_STATE_DEQUEUED'?
       VB2_BUF_STATE_REQUEUEING : VB2_BUF_STATE_DONE);
       ^~~~~~~~~~~~~~~~~~~~~~~~
       VB2_BUF_STATE_DEQUEUED
   drivers/media/pci/cobalt/cobalt-irq.c:131:4: note: each undeclared 
identifier is reported only once for each function it appears in

vim +131 drivers/media/pci/cobalt/cobalt-irq.c

85756a069 Hans Verkuil 2015-05-12   14  
85756a069 Hans Verkuil 2015-05-12   15  static void 
cobalt_dma_stream_queue_handler(struct cobalt_stream *s)
85756a069 Hans Verkuil 2015-05-12   16  {
85756a069 Hans Verkuil 2015-05-12   17          struct cobalt *cobalt = 
s->cobalt;
85756a069 Hans Verkuil 2015-05-12   18          int rx = s->video_channel;
c0ce6220a Hans Verkuil 2015-05-22   19          struct m00473_freewheel_regmap 
__iomem *fw =
85756a069 Hans Verkuil 2015-05-12   20                  
COBALT_CVI_FREEWHEEL(s->cobalt, rx);
c0ce6220a Hans Verkuil 2015-05-22   21          struct 
m00233_video_measure_regmap __iomem *vmr =
85756a069 Hans Verkuil 2015-05-12   22                  
COBALT_CVI_VMR(s->cobalt, rx);
c0ce6220a Hans Verkuil 2015-05-22   23          struct m00389_cvi_regmap 
__iomem *cvi =
85756a069 Hans Verkuil 2015-05-12   24                  COBALT_CVI(s->cobalt, 
rx);
c0ce6220a Hans Verkuil 2015-05-22   25          struct 
m00479_clk_loss_detector_regmap __iomem *clkloss =
85756a069 Hans Verkuil 2015-05-12   26                  
COBALT_CVI_CLK_LOSS(s->cobalt, rx);
85756a069 Hans Verkuil 2015-05-12   27          struct cobalt_buffer *cb;
85756a069 Hans Verkuil 2015-05-12   28          bool skip = false;
85756a069 Hans Verkuil 2015-05-12   29  
85756a069 Hans Verkuil 2015-05-12   30          spin_lock(&s->irqlock);
85756a069 Hans Verkuil 2015-05-12   31  
85756a069 Hans Verkuil 2015-05-12   32          if (list_empty(&s->bufs)) {
85756a069 Hans Verkuil 2015-05-12   33                  pr_err("no buffers!\n");
85756a069 Hans Verkuil 2015-05-12   34                  
spin_unlock(&s->irqlock);
85756a069 Hans Verkuil 2015-05-12   35                  return;
85756a069 Hans Verkuil 2015-05-12   36          }
85756a069 Hans Verkuil 2015-05-12   37  
85756a069 Hans Verkuil 2015-05-12   38          /* Give the fresh filled up 
buffer to the user.
85756a069 Hans Verkuil 2015-05-12   39           * Note that the interrupt is 
only sent if the DMA can continue
85756a069 Hans Verkuil 2015-05-12   40           * with a new buffer, so it is 
always safe to return this buffer
85756a069 Hans Verkuil 2015-05-12   41           * to userspace. */
85756a069 Hans Verkuil 2015-05-12   42          cb = list_first_entry(&s->bufs, 
struct cobalt_buffer, list);
85756a069 Hans Verkuil 2015-05-12   43          list_del(&cb->list);
85756a069 Hans Verkuil 2015-05-12   44          spin_unlock(&s->irqlock);
85756a069 Hans Verkuil 2015-05-12   45  
85756a069 Hans Verkuil 2015-05-12   46          if (s->is_audio || s->is_output)
85756a069 Hans Verkuil 2015-05-12   47                  goto done;
85756a069 Hans Verkuil 2015-05-12   48  
85756a069 Hans Verkuil 2015-05-12   49          if (s->unstable_frame) {
c0ce6220a Hans Verkuil 2015-05-22   50                  uint32_t stat = 
ioread32(&vmr->irq_status);
85756a069 Hans Verkuil 2015-05-12   51  
c0ce6220a Hans Verkuil 2015-05-22   52                  iowrite32(stat, 
&vmr->irq_status);
c0ce6220a Hans Verkuil 2015-05-22   53                  if 
(!(ioread32(&vmr->status) &
c0ce6220a Hans Verkuil 2015-05-22   54                        
M00233_STATUS_BITMAP_INIT_DONE_MSK)) {
85756a069 Hans Verkuil 2015-05-12   55                          cobalt_dbg(1, 
"!init_done\n");
85756a069 Hans Verkuil 2015-05-12   56                          if 
(s->enable_freewheel)
85756a069 Hans Verkuil 2015-05-12   57                                  goto 
restart_fw;
85756a069 Hans Verkuil 2015-05-12   58                          goto done;
85756a069 Hans Verkuil 2015-05-12   59                  }
85756a069 Hans Verkuil 2015-05-12   60  
c0ce6220a Hans Verkuil 2015-05-22   61                  if 
(ioread32(&clkloss->status) &
c0ce6220a Hans Verkuil 2015-05-22   62                      
M00479_STATUS_BITMAP_CLOCK_MISSING_MSK) {
c0ce6220a Hans Verkuil 2015-05-22   63                          iowrite32(0, 
&clkloss->ctrl);
c0ce6220a Hans Verkuil 2015-05-22   64                          
iowrite32(M00479_CTRL_BITMAP_ENABLE_MSK, &clkloss->ctrl);
85756a069 Hans Verkuil 2015-05-12   65                          cobalt_dbg(1, 
"no clock\n");
85756a069 Hans Verkuil 2015-05-12   66                          if 
(s->enable_freewheel)
85756a069 Hans Verkuil 2015-05-12   67                                  goto 
restart_fw;
85756a069 Hans Verkuil 2015-05-12   68                          goto done;
85756a069 Hans Verkuil 2015-05-12   69                  }
85756a069 Hans Verkuil 2015-05-12   70                  if ((stat & 
(M00233_IRQ_STATUS_BITMAP_VACTIVE_AREA_MSK |
85756a069 Hans Verkuil 2015-05-12   71                               
M00233_IRQ_STATUS_BITMAP_HACTIVE_AREA_MSK)) ||
c0ce6220a Hans Verkuil 2015-05-22   72                                  
ioread32(&vmr->vactive_area) != s->timings.bt.height ||
c0ce6220a Hans Verkuil 2015-05-22   73                                  
ioread32(&vmr->hactive_area) != s->timings.bt.width) {
85756a069 Hans Verkuil 2015-05-12   74                          cobalt_dbg(1, 
"unstable\n");
85756a069 Hans Verkuil 2015-05-12   75                          if 
(s->enable_freewheel)
85756a069 Hans Verkuil 2015-05-12   76                                  goto 
restart_fw;
85756a069 Hans Verkuil 2015-05-12   77                          goto done;
85756a069 Hans Verkuil 2015-05-12   78                  }
85756a069 Hans Verkuil 2015-05-12   79                  if (!s->enable_cvi) {
85756a069 Hans Verkuil 2015-05-12   80                          s->enable_cvi = 
true;
c0ce6220a Hans Verkuil 2015-05-22   81                          
iowrite32(M00389_CONTROL_BITMAP_ENABLE_MSK, &cvi->control);
85756a069 Hans Verkuil 2015-05-12   82                          goto done;
85756a069 Hans Verkuil 2015-05-12   83                  }
c0ce6220a Hans Verkuil 2015-05-22   84                  if 
(!(ioread32(&cvi->status) & M00389_STATUS_BITMAP_LOCK_MSK)) {
85756a069 Hans Verkuil 2015-05-12   85                          cobalt_dbg(1, 
"cvi no lock\n");
85756a069 Hans Verkuil 2015-05-12   86                          if 
(s->enable_freewheel)
85756a069 Hans Verkuil 2015-05-12   87                                  goto 
restart_fw;
85756a069 Hans Verkuil 2015-05-12   88                          goto done;
85756a069 Hans Verkuil 2015-05-12   89                  }
85756a069 Hans Verkuil 2015-05-12   90                  if 
(!s->enable_freewheel) {
85756a069 Hans Verkuil 2015-05-12   91                          cobalt_dbg(1, 
"stable\n");
85756a069 Hans Verkuil 2015-05-12   92                          
s->enable_freewheel = true;
c0ce6220a Hans Verkuil 2015-05-22   93                          iowrite32(0, 
&fw->ctrl);
85756a069 Hans Verkuil 2015-05-12   94                          goto done;
85756a069 Hans Verkuil 2015-05-12   95                  }
85756a069 Hans Verkuil 2015-05-12   96                  cobalt_dbg(1, "enabled 
fw\n");
c0ce6220a Hans Verkuil 2015-05-22   97                  
iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK |
c0ce6220a Hans Verkuil 2015-05-22   98                            
M00233_CONTROL_BITMAP_ENABLE_INTERRUPT_MSK,
c0ce6220a Hans Verkuil 2015-05-22   99                            
&vmr->control);
c0ce6220a Hans Verkuil 2015-05-22  100                  
iowrite32(M00473_CTRL_BITMAP_ENABLE_MSK, &fw->ctrl);
85756a069 Hans Verkuil 2015-05-12  101                  s->enable_freewheel = 
false;
85756a069 Hans Verkuil 2015-05-12  102                  s->unstable_frame = 
false;
85756a069 Hans Verkuil 2015-05-12  103                  s->skip_first_frames = 
2;
85756a069 Hans Verkuil 2015-05-12  104                  skip = true;
85756a069 Hans Verkuil 2015-05-12  105                  goto done;
85756a069 Hans Verkuil 2015-05-12  106          }
c0ce6220a Hans Verkuil 2015-05-22  107          if (ioread32(&fw->status) & 
M00473_STATUS_BITMAP_FREEWHEEL_MODE_MSK) {
85756a069 Hans Verkuil 2015-05-12  108  restart_fw:
85756a069 Hans Verkuil 2015-05-12  109                  cobalt_dbg(1, "lost 
lock\n");
c0ce6220a Hans Verkuil 2015-05-22  110                  
iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK,
c0ce6220a Hans Verkuil 2015-05-22  111                            
&vmr->control);
c0ce6220a Hans Verkuil 2015-05-22  112                  
iowrite32(M00473_CTRL_BITMAP_ENABLE_MSK |
c0ce6220a Hans Verkuil 2015-05-22  113                            
M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK,
c0ce6220a Hans Verkuil 2015-05-22  114                            &fw->ctrl);
c0ce6220a Hans Verkuil 2015-05-22  115                  iowrite32(0, 
&cvi->control);
85756a069 Hans Verkuil 2015-05-12  116                  s->unstable_frame = 
true;
85756a069 Hans Verkuil 2015-05-12  117                  s->enable_freewheel = 
false;
85756a069 Hans Verkuil 2015-05-12  118                  s->enable_cvi = false;
85756a069 Hans Verkuil 2015-05-12  119          }
85756a069 Hans Verkuil 2015-05-12  120  done:
85756a069 Hans Verkuil 2015-05-12  121          if (s->skip_first_frames) {
85756a069 Hans Verkuil 2015-05-12  122                  skip = true;
85756a069 Hans Verkuil 2015-05-12  123                  s->skip_first_frames--;
85756a069 Hans Verkuil 2015-05-12  124          }
d6dd645ea Junghak Sung 2015-11-03  125          cb->vb.vb2_buf.timestamp = 
ktime_get_ns();
85756a069 Hans Verkuil 2015-05-12  126          /* TODO: the sequence number 
should be read from the FPGA so we
85756a069 Hans Verkuil 2015-05-12  127             also know about dropped 
frames. */
2d7007153 Junghak Sung 2015-09-22  128          cb->vb.sequence = s->sequence++;
2d7007153 Junghak Sung 2015-09-22  129          vb2_buffer_done(&cb->vb.vb2_buf,
2d7007153 Junghak Sung 2015-09-22  130                          (skip || 
s->unstable_frame) ?
6d058c564 Sakari Ailus 2015-07-03 @131                          
VB2_BUF_STATE_REQUEUEING : VB2_BUF_STATE_DONE);
85756a069 Hans Verkuil 2015-05-12  132  }
85756a069 Hans Verkuil 2015-05-12  133  

:::::: The code at line 131 was first introduced by commit
:::::: 6d058c5643e16779ae4c001d2e893c140940e48f [media] vb2: Only requeue 
buffers immediately once streaming is started

:::::: TO: Sakari Ailus <sakari.ai...@linux.intel.com>
:::::: CC: Mauro Carvalho Chehab <mche...@osg.samsung.com>

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

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