Re: [PATCH 2/2] drm/amdgpu: Example Usage in AMDGPU

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

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Hi Fangzhi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.14-rc7 next-20210827]
[cannot apply to drm/drm-next]
[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]

url:    https://github.com/0day-ci/linux/commits/Fangzhi-Zuo/Update-128b-132b-MST-Slot-Information/20210828-082044
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: x86_64-randconfig-a005-20210827 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4e1a164d7bd53653f79decc121afe784d2fde0a7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/9b4444b8b7cc43f098ef1f3a234c304c0e537754
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Fangzhi-Zuo/Update-128b-132b-MST-Slot-Information/20210828-082044
        git checkout 9b4444b8b7cc43f098ef1f3a234c304c0e537754
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:447:23: error: implicit declaration of function 'dc_link_dp_mst_decide_link_encoding_format' [-Werror,-Wimplicit-function-declaration]
                   link_encoding_cap = dc_link_dp_mst_decide_link_encoding_format(aconnector->dc_link);
                                       ^
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:448:3: error: implicit declaration of function 'drm_dp_mst_update_coding_cap' [-Werror,-Wimplicit-function-declaration]
                   drm_dp_mst_update_coding_cap(&aconnector->mst_mgr, link_encoding_cap);
                   ^
   2 errors generated.


vim +/dc_link_dp_mst_decide_link_encoding_format +447 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c

   441	
   442	void get_mst_link_encoding_cap(struct amdgpu_dm_connector *aconnector)
   443	{
   444		u8 link_encoding_cap;
   445	
   446		if (aconnector->dc_link->type == dc_connection_mst_branch) {
 > 447			link_encoding_cap = dc_link_dp_mst_decide_link_encoding_format(aconnector->dc_link);
 > 448			drm_dp_mst_update_coding_cap(&aconnector->mst_mgr, link_encoding_cap);
   449		}
   450	}
   451	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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