Hi

Am 04.03.22 um 21:26 schrieb Lyude Paul:
> Thomas, I assume this is on your radar?

Yes, it is. I just need to reproduce the problem. I think we have to 
select DRM_KMS_HELPER from DRM_PANEL_EDP.

Best regards
Thomas

> 
> On Fri, 2022-03-04 at 10:47 +0800, kernel test robot wrote:
>> Hi Thomas,
>>
>> FYI, the error/warning still remains.
>>
>> tree:
>> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
>> head:   91265a6da44d13296bdb5b3fbafa19d06be462f2
>> commit: eea89dff4c39a106f98d1cb5e4d626f8c63908b9 [3267/10468] drm/panel:
>> Select DRM_DP_HELPER for DRM_PANEL_EDP
>> config: arm-qcom_defconfig
>> (https://download.01.org/0day-ci/archive/20220304/202203040403.CjBmY9Vq-lkp@
>> intel.com/config)
>> compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
>> 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=eea89dff4c39a106f98d1cb5e4d626f8c63908b9
>>          git remote add linux-next
>> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>>          git fetch --no-tags linux-next master
>>          git checkout eea89dff4c39a106f98d1cb5e4d626f8c63908b9
>>          # save the config file to linux build tree
>>          mkdir build_dir
>>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross
>> O=build_dir ARCH=arm 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 >>):
>>
>>     arm-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in
>> function `drm_dp_mst_duplicate_state':
>>>> drm_dp_mst_topology.c:(.text+0x2db0): undefined reference to
>>>> `__drm_atomic_helper_private_obj_duplicate_state'
>>     arm-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in
>> function `drm_dp_delayed_destroy_work':
>>>> drm_dp_mst_topology.c:(.text+0x36c4): undefined reference to
>>>> `drm_kms_helper_hotplug_event'
>>     arm-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in
>> function `drm_dp_mst_up_req_work':
>>     drm_dp_mst_topology.c:(.text+0x7888): undefined reference to
>> `drm_kms_helper_hotplug_event'
>>     arm-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in
>> function `drm_dp_mst_link_probe_work':
>>     drm_dp_mst_topology.c:(.text+0x8220): undefined reference to
>> `drm_kms_helper_hotplug_event'
>>
>> ---
>> 0-DAY CI Kernel Test Service, Intel Corporation
>> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>>
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev