linux-kernel - drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_resource.c:1667: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

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Message-ID: <202504270342.FU9iqFuX-lkp@intel.com>
Date: Sun, 27 Apr 2025 03:57:04 +0800
From: kernel test robot <lkp@...el.com>
To: Peterson Guo <peterson.guo@....com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Alex Deucher <alexander.deucher@....com>,
	Alvin Lee <alvin.lee2@....com>, Wayne Lin <wayne.lin@....com>,
	linux-doc@...r.kernel.org
Subject: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_resource.c:1667:
 warning: This comment starts with '/**', but isn't a kernel-doc comment.
 Refer Documentation/doc-guide/kernel-doc.rst

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   02ddfb981de88a2c15621115dd7be2431252c568
commit: 3c50bf2196aaddcaffe2c7a1a7080470380cbfdd drm/amd/display: Reverse the visual confirm recouts
date:   2 months ago
config: sparc64-randconfig-001-20250426 (https://download.01.org/0day-ci/archive/20250427/202504270342.FU9iqFuX-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250427/202504270342.FU9iqFuX-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504270342.FU9iqFuX-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_resource.c:1667: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
            * Disable the cursor if there's another pipe above this with a
   drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_resource.c:1687: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
                    * There is another half plane on same layer because of


vim +1667 drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_resource.c

  1654	
  1655	bool resource_can_pipe_disable_cursor(struct pipe_ctx *pipe_ctx)
  1656	{
  1657		struct pipe_ctx *test_pipe, *split_pipe;
  1658		struct rect r1 = pipe_ctx->plane_res.scl_data.recout;
  1659		int r1_right, r1_bottom;
  1660		int cur_layer = pipe_ctx->plane_state->layer_index;
  1661	
  1662		reverse_adjust_recout_for_visual_confirm(&r1, pipe_ctx);
  1663		r1_right = r1.x + r1.width;
  1664		r1_bottom = r1.y + r1.height;
  1665	
  1666		/**
> 1667		 * Disable the cursor if there's another pipe above this with a
  1668		 * plane that contains this pipe's viewport to prevent double cursor
  1669		 * and incorrect scaling artifacts.
  1670		 */
  1671		for (test_pipe = pipe_ctx->top_pipe; test_pipe;
  1672		     test_pipe = test_pipe->top_pipe) {
  1673			struct rect r2;
  1674			int r2_right, r2_bottom;
  1675			// Skip invisible layer and pipe-split plane on same layer
  1676			if (!test_pipe->plane_state ||
  1677			    !test_pipe->plane_state->visible ||
  1678			    test_pipe->plane_state->layer_index == cur_layer)
  1679				continue;
  1680	
  1681			r2 = test_pipe->plane_res.scl_data.recout;
  1682			reverse_adjust_recout_for_visual_confirm(&r2, test_pipe);
  1683			r2_right = r2.x + r2.width;
  1684			r2_bottom = r2.y + r2.height;
  1685	
  1686			/**
  1687			 * There is another half plane on same layer because of
  1688			 * pipe-split, merge together per same height.
  1689			 */
  1690			for (split_pipe = pipe_ctx->top_pipe; split_pipe;
  1691			     split_pipe = split_pipe->top_pipe)
  1692				if (split_pipe->plane_state->layer_index == test_pipe->plane_state->layer_index) {
  1693					struct rect r2_half;
  1694	
  1695					r2_half = split_pipe->plane_res.scl_data.recout;
  1696					reverse_adjust_recout_for_visual_confirm(&r2_half, split_pipe);
  1697					r2.x = min(r2_half.x, r2.x);
  1698					r2.width = r2.width + r2_half.width;
  1699					r2_right = r2.x + r2.width;
  1700					r2_bottom = min(r2_bottom, r2_half.y + r2_half.height);
  1701					break;
  1702				}
  1703	
  1704			if (r1.x >= r2.x && r1.y >= r2.y && r1_right <= r2_right && r1_bottom <= r2_bottom)
  1705				return true;
  1706		}
  1707	
  1708		return false;
  1709	}
  1710	

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