tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 6804f0edbe7747774e6ae60f20cec4ee3ad7c187 commit: ca097d4d94d808409386fde414370900cc41adad [8272/8795] drm/display: split DSC helpers from DP helpers config: sparc64-randconfig-r012-20230210 (https://download.01.org/0day-ci/archive/20240904/202409040129.rqhtRTeC-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 13.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240904/202409040129.rqhtRTeC-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/202409040129.rqhtRTeC-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/locking/test-ww_mutex.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/slub_kunit.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/devfreq/governor_userspace.o >> ERROR: modpost: "drm_dsc_get_bpp_int" [drivers/gpu/drm/msm/msm.ko] undefined! >> ERROR: modpost: "drm_dsc_flatness_det_thresh" [drivers/gpu/drm/msm/msm.ko] undefined! WARNING: modpost: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned. Is "_mcount" prototyped in <asm/asm-prototypes.h>? -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki