Hi, kernel test robot noticed the following build errors:
[auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on daeinki-drm-exynos/exynos-drm-next drm/drm-next drm-tip/drm-tip] [cannot apply to drm-i915/for-linux-next drm-i915/for-linux-next-fixes linus/master v6.19-rc5] [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/sunpeng-li-amd-com/drm-amd-display-Implement-prepare_vblank_enable-callback/20260110-032355 base: https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next patch link: https://lore.kernel.org/r/20260109192027.116325-1-sunpeng.li%40amd.com patch subject: [PATCH v3 1/2] drm: Introduce drm_crtc_vblank_prepare() config: nios2-allmodconfig (https://download.01.org/0day-ci/archive/20260116/[email protected]/config) compiler: nios2-linux-gcc (GCC) 11.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260116/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "drm_crtc_vblank_prepare" >> [drivers/gpu/drm/drm_kms_helper.ko] undefined! -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
