linux-kernel - Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:6396 function parameter 'link' not described in 'dc_get_host_router

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Message-ID: <202506301044.hmaOBDHw-lkp@intel.com>
Date: Mon, 30 Jun 2025 10:23:08 +0200
From: kernel test robot <lkp@...el.com>
To: Peichen Huang <PeiChen.Huang@....com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Alex Deucher <alexander.deucher@....com>,
	Cruise Hung <cruise.hung@....com>, Alex Hung <alex.hung@....com>
Subject: Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:6396
 function parameter 'link' not described in 'dc_get_host_router_index'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d0b3b7b22dfa1f4b515fd3a295b3fd958f9e81af
commit: 3251b69b7efb82eba24c9e168a6142a3078de72f drm/amd/display: Add dc cap for dp tunneling
date:   12 days ago
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250630/202506301044.hmaOBDHw-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
rustc: rustc 1.78.0 (9b00956e5 2024-04-29)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250630/202506301044.hmaOBDHw-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/202506301044.hmaOBDHw-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:6383 Cannot find identifier on line:
    ***********************************************************************************************
>> Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:6396 function parameter 'link' not described in 'dc_get_host_router_index'
>> Warning: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:6396 function parameter 'host_router_index' not described in 'dc_get_host_router_index'

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki