Hi Hsin-Yi, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm/drm-next] [cannot apply to robh/for-next drm-intel/for-linux-next v5.17-rc2] [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/Hsin-Yi-Wang/drm-bridge-anx7625-send-DPCD-command-to-downstream/20220203-221108 base: git://anongit.freedesktop.org/drm/drm drm-next config: arm64-randconfig-c023-20220130 (https://download.01.org/0day-ci/archive/20220205/202202050942.C6c0MD0r-lkp@xxxxxxxxx/config) compiler: aarch64-linux-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://github.com/0day-ci/linux/commit/45f3728b61c8cb8d53d13d88c33c4f58630dcea6 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Hsin-Yi-Wang/drm-bridge-anx7625-send-DPCD-command-to-downstream/20220203-221108 git checkout 45f3728b61c8cb8d53d13d88c33c4f58630dcea6 # 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=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): aarch64-linux-ld: Unexpected GOT/PLT entries detected! aarch64-linux-ld: Unexpected run-time procedure linkages detected! aarch64-linux-ld: ID map text too big or misaligned aarch64-linux-ld: drivers/gpu/drm/bridge/analogix/anx7625.o: in function `anx7625_bridge_detach': >> anx7625.c:(.text+0x5e0): undefined reference to `drm_dp_aux_unregister' aarch64-linux-ld: drivers/gpu/drm/bridge/analogix/anx7625.o: in function `anx7625_bridge_attach': >> anx7625.c:(.text+0x674): undefined reference to `drm_dp_aux_register' aarch64-linux-ld: drivers/gpu/drm/bridge/analogix/anx7625.o: in function `anx7625_i2c_probe': >> anx7625.c:(.text+0x1b48): undefined reference to `drm_dp_aux_init' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx