[Intel-gfx] [PATCH 08/29] drm/dp: Add helpers to calculate the link BW overhead

[kernel test robot]

Hi Imre,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-tip/drm-tip]

url:    https://github.com/intel-lab-lkp/linux/commits/Imre-Deak/drm-dp_mst-Fix-fractional-DSC-bpp-handling/20231024-091920
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
patch link:    https://lore.kernel.org/r/20231024010925.3949910-9-imre.deak%40intel.com
patch subject: [Intel-gfx] [PATCH 08/29] drm/dp: Add helpers to calculate the link BW overhead
config: x86_64-buildonly-randconfig-003-20231024 (https://download.01.org/0day-ci/archive/20231024/202310242019.Hp2KseM1-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231024/202310242019.Hp2KseM1-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/202310242019.Hp2KseM1-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: drivers/gpu/drm/display/drm_dp_mst_topology.o: in function `drm_dp_calc_pbn_mode':
>> drm_dp_mst_topology.c:(.text+0x1403): undefined reference to `drm_dp_bw_overhead'

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