Hi Yongbang, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on linus/master v6.12-rc6 next-20241101] [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/Yongbang-Shi/drm-hisilicon-hibmc-add-dp-aux-in-hibmc/20241101-185648 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20241101105028.2177274-3-shiyongbang%40huawei.com patch subject: [PATCH V3 drm-dp 2/4] drm/hisilicon/hibmc: add dp link moduel in hibmc config: csky-randconfig-r121-20241103 (https://download.01.org/0day-ci/archive/20241104/202411041559.WIfxRN6n-lkp@xxxxxxxxx/config) compiler: csky-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20241104/202411041559.WIfxRN6n-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/202411041559.WIfxRN6n-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c:12:10: sparse: sparse: symbol 'link_rate_map' was not declared. Should it be static? vim +/link_rate_map +12 drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c 11 > 12 const u8 link_rate_map[] = {DP_LINK_BW_1_62, DP_LINK_BW_2_7, 13 DP_LINK_BW_5_4, DP_LINK_BW_8_1}; 14 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki