Hi Yongqiang, kernel test robot noticed the following build errors: [auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on linus/master v6.4 next-20230704] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Yongqiang-Niu/drm-mediatek-add-dma-buffer-control-for-drm-plane-disable/20230704-170623 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20230704090432.5844-1-yongqiang.niu%40mediatek.com patch subject: [v4, PATCH] drm/mediatek: add dma buffer control for drm plane disable config: arm64-defconfig (https://download.01.org/0day-ci/archive/20230705/202307050325.QZv71se7-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230705/202307050325.QZv71se7-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202307050325.QZv71se7-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: module mediatek-drm uses symbol dma_buf_put from namespace DMA_BUF, but does not import it. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki