Hi Ming,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on robh/for-next v5.14-rc5]
[cannot apply to shawnguo/for-next next-20210811]
[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]

url:    https://github.com/0day-ci/linux/commits/Ming-Qian/imx8q-video-decoder-encoder-driver/20210811-164741
base:   git://linuxtv.org/media_tree.git master
config: i386-randconfig-m021-20210810 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/2fa6f8ecd73870259a9a985a8b214d5eb58a5314
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Ming-Qian/imx8q-video-decoder-encoder-driver/20210811-164741
        git checkout 2fa6f8ecd73870259a9a985a8b214d5eb58a5314
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

   In file included from ./usr/include/linux/imx_vpu.h:9,
                    from <command-line>:32:
>> ./usr/include/linux/videodev2.h:2403:20: error: field 'timestamp' has incomplete type
    2403 |  struct timespec   timestamp;
         |                    ^~~~~~~~~
   In file included from <command-line>:32:
>> ./usr/include/linux/imx_vpu.h:12:1: error: C++ style comments are not allowed in ISO C90
      12 | //error happened in dec/enc
         | ^
   ./usr/include/linux/imx_vpu.h:12:1: note: (this will be reported only once per input file)
>> ./usr/include/linux/imx_vpu.h:17:8: warning: extra tokens at end of #endif directive [-Wendif-labels]
      17 | #endif //#ifndef __LINUX_IMX_VPU_H
         |        ^

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org