Re: [v3 4/6] drm/vs: Add KMS crtc&plane

[kernel test robot <lkp@intel.com>]

Hi Keith,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on linus/master v6.7-rc4]
[cannot apply to drm-misc/drm-misc-next drm/drm-next next-20231205]
[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/Keith-Zhao/dt-bindings-display-Add-yamls-for-JH7110-display-system/20231204-203725
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20231204123315.28456-5-keith.zhao%40starfivetech.com
patch subject: [v3 4/6] drm/vs: Add KMS crtc&plane
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20231205/202312052346.3kCifvmT-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231205/202312052346.3kCifvmT-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312052346.3kCifvmT-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/verisilicon/vs_dc.c:970:9: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
     970 |         u32 i, ret;
         |                ^
>> drivers/gpu/drm/verisilicon/vs_dc.c:78:18: warning: unused variable 'primary_overlay_format1' [-Wunused-const-variable]
      78 | static const u32 primary_overlay_format1[] = {
         |                  ^
   2 warnings generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for DMA_CMA
   Depends on [n]: HAVE_DMA_CONTIGUOUS [=n] && CMA [=y]
   Selected by [m]:
   - DRM_VERISILICON [=m] && HAS_IOMEM [=y] && DRM [=m]


vim +/primary_overlay_format1 +78 drivers/gpu/drm/verisilicon/vs_dc.c

    77	
  > 78	static const u32 primary_overlay_format1[] = {
    79		DRM_FORMAT_XRGB8888,
    80		DRM_FORMAT_XBGR8888,
    81		DRM_FORMAT_RGBX8888,
    82		DRM_FORMAT_BGRX8888,
    83		DRM_FORMAT_ARGB8888,
    84		DRM_FORMAT_ABGR8888,
    85		DRM_FORMAT_RGBA8888,
    86		DRM_FORMAT_BGRA8888,
    87		DRM_FORMAT_ARGB2101010,
    88		DRM_FORMAT_ABGR2101010,
    89		DRM_FORMAT_RGBA1010102,
    90		DRM_FORMAT_BGRA1010102,
    91		DRM_FORMAT_NV12,
    92		DRM_FORMAT_NV21,
    93		DRM_FORMAT_YUV444,
    94	};
    95	

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