Hi Wenchao, kernel test robot noticed the following build errors: [auto build test ERROR on ulf-hansson-mmc-mirror/next] [also build test ERROR on linus/master v6.5-rc5 next-20230809] [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/Wenchao-Chen/mmc-core-Add-host-specific-tuning-support-for-SD-HS-mode/20230809-133203 base: https://git.linaro.org/people/ulf.hansson/mmc-mirror.git next patch link: https://lore.kernel.org/r/20230809052952.323-1-wenchao.chen%40unisoc.com patch subject: [PATCH] mmc: core: Add host specific tuning support for SD HS mode config: arm-randconfig-r064-20230809 (https://download.01.org/0day-ci/archive/20230810/202308100202.lY0aerbk-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230810/202308100202.lY0aerbk-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/202308100202.lY0aerbk-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "mmc_sd_switch" [drivers/mmc/host/sdhci-sprd.ko] undefined! -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
