Re: [PATCH v4 03/45] drm/tests: Add helper to create mock plane

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Hi Maxime,

kernel test robot noticed the following build warnings:

[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on sunxi/sunxi/for-next drm/drm-next linus/master v6.7-rc3 next-20231128]
[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/Maxime-Ripard/drm-tests-helpers-Add-atomic-helpers/20231128-193409
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20231128-kms-hdmi-connector-state-v4-3-c7602158306e%40kernel.org
patch subject: [PATCH v4 03/45] drm/tests: Add helper to create mock plane
config: i386-buildonly-randconfig-002-20231128 (https://download.01.org/0day-ci/archive/20231128/202311282223.mefGp1S5-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231128/202311282223.mefGp1S5-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/202311282223.mefGp1S5-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/tests/drm_kunit_helpers.c:290: warning: Function parameter or member 'num_formats' not described in 'drm_kunit_helper_create_primary_plane'
>> drivers/gpu/drm/tests/drm_kunit_helpers.c:290: warning: Excess function parameter 'format_count' description in 'drm_kunit_helper_create_primary_plane'


vim +290 drivers/gpu/drm/tests/drm_kunit_helpers.c

   257	
   258	/**
   259	 * drm_kunit_helper_create_primary_plane - Creates a mock primary plane for a KUnit test
   260	 * @test: The test context object
   261	 * @drm: The device to alloc the plane for
   262	 * @funcs: Callbacks for the new plane. Optional.
   263	 * @helper_funcs: Helpers callbacks for the new plane. Optional.
   264	 * @formats: array of supported formats (DRM_FORMAT\_\*). Optional.
   265	 * @format_count: number of elements in @formats
   266	 * @modifiers: array of struct drm_format modifiers terminated by
   267	 *             DRM_FORMAT_MOD_INVALID. Optional.
   268	 *
   269	 * This allocates and initializes a mock struct &drm_plane meant to be
   270	 * part of a mock device for a KUnit test.
   271	 *
   272	 * Resources will be cleaned up automatically.
   273	 *
   274	 * @funcs will default to the default helpers implementations.
   275	 * @helper_funcs will default to an empty implementation. @formats will
   276	 * default to XRGB8888 only. @modifiers will default to a linear
   277	 * modifier only.
   278	 *
   279	 * Returns:
   280	 * A pointer to the new plane, or an ERR_PTR() otherwise.
   281	 */
   282	struct drm_plane *
   283	drm_kunit_helper_create_primary_plane(struct kunit *test,
   284					      struct drm_device *drm,
   285					      const struct drm_plane_funcs *funcs,
   286					      const struct drm_plane_helper_funcs *helper_funcs,
   287					      const uint32_t *formats,
   288					      unsigned int num_formats,
   289					      const uint64_t *modifiers)
 > 290	{
   291		struct drm_plane *plane;
   292	
   293		if (!funcs)
   294			funcs = &default_plane_funcs;
   295	
   296		if (!helper_funcs)
   297			helper_funcs = &default_plane_helper_funcs;
   298	
   299		if (!formats || !num_formats) {
   300			formats = default_plane_formats;
   301			num_formats = ARRAY_SIZE(default_plane_formats);
   302		}
   303	
   304		if (!modifiers)
   305			modifiers = default_plane_modifiers;
   306	
   307		plane = __drmm_universal_plane_alloc(drm,
   308						     sizeof(struct drm_plane), 0,
   309						     0,
   310						     funcs,
   311						     formats,
   312						     num_formats,
   313						     default_plane_modifiers,
   314						     DRM_PLANE_TYPE_PRIMARY,
   315						     NULL);
   316		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane);
   317	
   318		drm_plane_helper_add(plane, helper_funcs);
   319	
   320		return plane;
   321	}
   322	EXPORT_SYMBOL_GPL(drm_kunit_helper_create_primary_plane);
   323	

-- 
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https://github.com/intel/lkp-tests/wiki




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