Hi Vandana,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linuxtv-media/master]
[cannot apply to v5.3-rc8 next-20190904]
[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/Vandana-BN/uvc-vsp1-ipu3-use-VFL_TYPE_METADATA-for-metadata-device/20190914-074954
base:   git://linuxtv.org/media_tree.git master
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 7.4.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=ia64 

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/usb/uvc/uvc_driver.c: In function 'uvc_register_video_device':
>> drivers/media/usb/uvc/uvc_driver.c:1979:14: error: 'VFL_TYPE_METADATA' 
>> undeclared (first use in this function); did you mean 'VFL_TYPE_MAX'?
      vfl_type = VFL_TYPE_METADATA;
                 ^~~~~~~~~~~~~~~~~
                 VFL_TYPE_MAX
   drivers/media/usb/uvc/uvc_driver.c:1979:14: note: each undeclared identifier 
is reported only once for each function it appears in
--
   drivers/media/platform/vsp1/vsp1_histo.c: In function 'vsp1_histogram_init':
>> drivers/media/platform/vsp1/vsp1_histo.c:554:26: error: 'VFL_TYPE_METADATA' 
>> undeclared (first use in this function); did you mean 'VFL_TYPE_MAX'?
     histo->video.vfl_type = VFL_TYPE_METADATA;
                             ^~~~~~~~~~~~~~~~~
                             VFL_TYPE_MAX
   drivers/media/platform/vsp1/vsp1_histo.c:554:26: note: each undeclared 
identifier is reported only once for each function it appears in

vim +1979 drivers/media/usb/uvc/uvc_driver.c

  1935  
  1936  int uvc_register_video_device(struct uvc_device *dev,
  1937                                struct uvc_streaming *stream,
  1938                                struct video_device *vdev,
  1939                                struct uvc_video_queue *queue,
  1940                                enum v4l2_buf_type type,
  1941                                const struct v4l2_file_operations *fops,
  1942                                const struct v4l2_ioctl_ops *ioctl_ops)
  1943  {
  1944          int ret;
  1945          int vfl_type = VFL_TYPE_GRABBER;
  1946  
  1947          /* Initialize the video buffers queue. */
  1948          ret = uvc_queue_init(queue, type, !uvc_no_drop_param);
  1949          if (ret)
  1950                  return ret;
  1951  
  1952          /* Register the device with V4L. */
  1953  
  1954          /*
  1955           * We already hold a reference to dev->udev. The video device 
will be
  1956           * unregistered before the reference is released, so we don't 
need to
  1957           * get another one.
  1958           */
  1959          vdev->v4l2_dev = &dev->vdev;
  1960          vdev->fops = fops;
  1961          vdev->ioctl_ops = ioctl_ops;
  1962          vdev->release = uvc_release;
  1963          vdev->prio = &stream->chain->prio;
  1964          if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
  1965                  vdev->vfl_dir = VFL_DIR_TX;
  1966          else
  1967                  vdev->vfl_dir = VFL_DIR_RX;
  1968  
  1969          switch (type) {
  1970          case V4L2_BUF_TYPE_VIDEO_CAPTURE:
  1971          default:
  1972                  vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | 
V4L2_CAP_STREAMING;
  1973                  break;
  1974          case V4L2_BUF_TYPE_VIDEO_OUTPUT:
  1975                  vdev->device_caps = V4L2_CAP_VIDEO_OUTPUT | 
V4L2_CAP_STREAMING;
  1976                  break;
  1977          case V4L2_BUF_TYPE_META_CAPTURE:
  1978                  vdev->device_caps = V4L2_CAP_META_CAPTURE | 
V4L2_CAP_STREAMING;
> 1979                  vfl_type = VFL_TYPE_METADATA;
  1980                  break;
  1981          }
  1982  
  1983          strscpy(vdev->name, dev->name, sizeof(vdev->name));
  1984  
  1985          /*
  1986           * Set the driver data before calling video_register_device, 
otherwise
  1987           * the file open() handler might race us.
  1988           */
  1989          video_set_drvdata(vdev, stream);
  1990  
  1991          ret = video_register_device(vdev, vfl_type, -1);
  1992          if (ret < 0) {
  1993                  uvc_printk(KERN_ERR, "Failed to register %s device 
(%d).\n",
  1994                             v4l2_type_names[type], ret);
  1995                  return ret;
  1996          }
  1997  
  1998          kref_get(&dev->ref);
  1999          return 0;
  2000  }
  2001  

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

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