Hi Xin, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.9-rc5 next-20200916] [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/Xin-Ji/Add-initial-support-for-s... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git fc4f28bb3daf3265d6bc5f73b497306985bb23ab config: nds32-allyesconfig (attached as .config) compiler: nds32le-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nds32 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 1636 | .mode_valid = anx7625_bridge_mode_valid, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/analogix/anx7625.c:1636:16: note: (near initialization for 'anx7625_bridge_funcs.mode_valid') cc1: some warnings being treated as errors # https://github.com/0day-ci/linux/commit/894859cbb786436c47d020d5569de7019... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Xin-Ji/Add-initial-support-for-slimport-anx7625/20200916-172800 git checkout 894859cbb786436c47d020d5569de7019776174c vim +1636 drivers/gpu/drm/bridge/analogix/anx7625.c 1631 1632 static const struct drm_bridge_funcs anx7625_bridge_funcs = { 1633 .attach = anx7625_bridge_attach, 1634 .detach = anx7625_bridge_detach, 1635 .disable = anx7625_bridge_disable, 1637 .mode_set = anx7625_bridge_mode_set, 1638 .mode_fixup = anx7625_bridge_mode_fixup, 1639 .enable = anx7625_bridge_enable, 1640 .detect = anx7625_bridge_detect, 1641 .get_edid = anx7625_bridge_get_edid, 1642 }; 1643 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org