Re: [PATCH v4 1/1] media: v4l2-common: Add helper function media_bus_fmt_to_csi2_(bpp|dt)()

[kernel test robot]

Hi Frank,

kernel test robot noticed the following build errors:

[auto build test ERROR on linuxtv-media-pending/master]
[also build test ERROR on media-tree/master sailus-media-tree/master linus/master v7.1-rc3 next-20260508]
[cannot apply to sailus-media-tree/streams]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Frank-Li/media-v4l2-common-Add-helper-function-media_bus_fmt_to_csi2_-bpp-dt/20260515-161325
base:   https://git.linuxtv.org/media-ci/media-pending.git master
patch link:    https://lore.kernel.org/r/20260513205949.105444-1-Frank.Li%40nxp.com
patch subject: [PATCH v4 1/1] media: v4l2-common: Add helper function media_bus_fmt_to_csi2_(bpp|dt)()
config: nios2-allmodconfig (https://download.01.org/0day-ci/archive/20260516/202605160116.STJsNWSa-lkp@xxxxxxxxx/config)
compiler: nios2-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260516/202605160116.STJsNWSa-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202605160116.STJsNWSa-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from drivers/media/platform/rockchip/rkisp1/rkisp1-common.c:8:
>> include/media/mipi-csi2.h:58:1: error: unknown type name 'u32'
      58 | u32 media_bus_fmt_to_csi2_dt(int bus_fmt);
         | ^~~
   include/media/mipi-csi2.h:71:1: error: unknown type name 'u32'
      71 | u32 media_bus_fmt_to_csi2_bpp(int bus_fmt);
         | ^~~


vim +/u32 +58 include/media/mipi-csi2.h

    49	
    50	/**
    51	 * media_bus_fmt_to_csi2_dt - Get MIPI CSI2 data type from media bus format
    52	 *
    53	 * @bus_fmt: media bus format identifier (MEDIA_BUS_FMT_*)
    54	 *
    55	 * return MIPI CSI2 data type MIPI_CSI2_DT_*, MIPI_CSI2_DT_INVALIDATE means
    56	 * can't get data type from bus_fmt.
    57	 */
  > 58	u32 media_bus_fmt_to_csi2_dt(int bus_fmt);
    59	

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