Re: [RFC PATCH 1/6] drm/dp: Helpers to make it easier for drivers to use DP AUX bus properly

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

Hi Douglas,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on drm-tip/drm-tip]
[also build test ERROR on v5.18-rc1 next-20220408]
[cannot apply to drm/drm-next drm-intel/for-linux-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/intel-lab-lkp/linux/commits/Douglas-Anderson/drm-dp-Improvements-for-DP-AUX-channel/20220409-103757
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: hexagon-randconfig-r041-20220408 (https://download.01.org/0day-ci/archive/20220409/202204091350.o07baxjw-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c29a51b3a257908aebc01cd7c4655665db317d66)
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/intel-lab-lkp/linux/commit/3ac7f6296e6f7896ca327e0832276c1f030a1398
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Douglas-Anderson/drm-dp-Improvements-for-DP-AUX-channel/20220409-103757
        git checkout 3ac7f6296e6f7896ca327e0832276c1f030a1398
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash

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 >>):

>> ld.lld: error: undefined symbol: auxiliary_device_init
   >>> referenced by drm_dp_aux_bus.c
   >>> gpu/drm/dp/drm_dp_aux_bus.o:(dp_aux_register_ep_client) in archive drivers/built-in.a
   >>> referenced by drm_dp_aux_bus.c
   >>> gpu/drm/dp/drm_dp_aux_bus.o:(dp_aux_register_ep_client) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: __auxiliary_device_add
   >>> referenced by drm_dp_aux_bus.c
   >>> gpu/drm/dp/drm_dp_aux_bus.o:(dp_aux_register_ep_client) in archive drivers/built-in.a
   >>> referenced by drm_dp_aux_bus.c
   >>> gpu/drm/dp/drm_dp_aux_bus.o:(dp_aux_register_ep_client) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: __auxiliary_driver_register
   >>> referenced by drm_dp_aux_bus.c
   >>> gpu/drm/dp/drm_dp_aux_bus.o:(dp_aux_bus_init) in archive drivers/built-in.a
   >>> referenced by drm_dp_aux_bus.c
   >>> gpu/drm/dp/drm_dp_aux_bus.o:(dp_aux_bus_init) in archive drivers/built-in.a

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp