[PATCH v2] drm/amd/display: Fix exception handling in dm_validate_stream_and_context()

[kernel test robot]

Hi Markus,

kernel test robot noticed the following build errors:

[auto build test ERROR on next-20250606]
[also build test ERROR on v6.16-rc1]
[cannot apply to drm-exynos/exynos-drm-next linus/master drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm/drm-next drm-misc/drm-misc-next v6.16-rc1 v6.15 v6.15-rc7]
[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/Markus-Elfring/drm-amd-display-Fix-exception-handling-in-dm_validate_stream_and_context/20250609-151039
base:   next-20250606
patch link:    https://lore.kernel.org/r/da489521-7786-4716-8fb8-d79b3c08d93c%40web.de
patch subject: [PATCH v2] drm/amd/display: Fix exception handling in dm_validate_stream_and_context()
config: x86_64-buildonly-randconfig-005-20250609 (https://download.01.org/0day-ci/archive/20250610/202506100312.Ms4XgAzW-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250610/202506100312.Ms4XgAzW-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506100312.Ms4XgAzW-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:7525:2: error: call to undeclared function 'dc_release_state'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    7525 |         dc_release_state(dc_state);
         |         ^
   1 error generated.


vim +/dc_release_state +7525 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c

  7471	
  7472	static enum dc_status dm_validate_stream_and_context(struct dc *dc,
  7473							struct dc_stream_state *stream)
  7474	{
  7475		enum dc_status dc_result = DC_ERROR_UNEXPECTED;
  7476		struct dc_plane_state *dc_plane_state;
  7477		struct dc_state *dc_state;
  7478	
  7479		if (!stream)
  7480			return dc_result;
  7481	
  7482		dc_plane_state = dc_create_plane_state(dc);
  7483		if (!dc_plane_state)
  7484			return dc_result;
  7485	
  7486		dc_state = dc_state_create(dc, NULL);
  7487		if (!dc_state)
  7488			goto release_plane_state;
  7489	
  7490		/* populate stream to plane */
  7491		dc_plane_state->src_rect.height  = stream->src.height;
  7492		dc_plane_state->src_rect.width   = stream->src.width;
  7493		dc_plane_state->dst_rect.height  = stream->src.height;
  7494		dc_plane_state->dst_rect.width   = stream->src.width;
  7495		dc_plane_state->clip_rect.height = stream->src.height;
  7496		dc_plane_state->clip_rect.width  = stream->src.width;
  7497		dc_plane_state->plane_size.surface_pitch = ((stream->src.width + 255) / 256) * 256;
  7498		dc_plane_state->plane_size.surface_size.height = stream->src.height;
  7499		dc_plane_state->plane_size.surface_size.width  = stream->src.width;
  7500		dc_plane_state->plane_size.chroma_size.height  = stream->src.height;
  7501		dc_plane_state->plane_size.chroma_size.width   = stream->src.width;
  7502		dc_plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888;
  7503		dc_plane_state->tiling_info.gfx9.swizzle = DC_SW_UNKNOWN;
  7504		dc_plane_state->rotation = ROTATION_ANGLE_0;
  7505		dc_plane_state->is_tiling_rotated = false;
  7506		dc_plane_state->tiling_info.gfx8.array_mode = DC_ARRAY_LINEAR_GENERAL;
  7507	
  7508		dc_result = dc_validate_stream(dc, stream);
  7509		if (dc_result == DC_OK)
  7510			dc_result = dc_validate_plane(dc, dc_plane_state);
  7511	
  7512		if (dc_result == DC_OK)
  7513			dc_result = dc_state_add_stream(dc, dc_state, stream);
  7514	
  7515		if (dc_result == DC_OK && !dc_state_add_plane(
  7516							dc,
  7517							stream,
  7518							dc_plane_state,
  7519							dc_state))
  7520			dc_result = DC_FAIL_ATTACH_SURFACES;
  7521	
  7522		if (dc_result == DC_OK)
  7523			dc_result = dc_validate_global_state(dc, dc_state, DC_VALIDATE_MODE_ONLY);
  7524	
> 7525		dc_release_state(dc_state);
  7526	release_plane_state:
  7527		dc_plane_state_release(dc_plane_state);
  7528		return dc_result;
  7529	}
  7530	

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