Hi Shengjiu, I love your patch! Yet something to improve: [auto build test ERROR on asoc/for-next] [also build test ERROR on shawnguo/for-next v5.12-rc2] [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] url: https://github.com/0day-ci/linux/commits/Shengjiu-Wang/Add-audio-driver-base-on-rpmsg-on-i-MX-platform/20210308-213802 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next config: sh-allmodconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/0cabc4a6bce0db6d63de8cfffbdc5fe53c4ea6f5 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Shengjiu-Wang/Add-audio-driver-base-on-rpmsg-on-i-MX-platform/20210308-213802 git checkout 0cabc4a6bce0db6d63de8cfffbdc5fe53c4ea6f5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "__clk_get_name" [sound/soc/fsl/snd-soc-fsl-rpmsg.ko] undefined! ERROR: modpost: "__delay" [drivers/net/mdio/mdio-cavium.ko] undefined! ERROR: modpost: "__udivdi3" [fs/btrfs/btrfs.ko] undefined! ERROR: modpost: "__umoddi3" [fs/btrfs/btrfs.ko] undefined! Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SND_ATMEL_SOC_PDC Depends on SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC && HAS_DMA Selected by - SND_ATMEL_SOC_SSC && SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC - SND_ATMEL_SOC_SSC_PDC && SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC && ATMEL_SSC --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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