[kbuild-all] undefined reference to `devm_mux_control_get'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e28c0d7c92c89016c12a677616668957351e7542 commit: abf00907538e21c469a10809dc2991982673fcbf spi: dw: Add Baikal-T1 SPI Controller glue driver date: 5 weeks ago config: parisc-randconfig-s032-20201115 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-107-gaf3512a6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout abf00907538e21c469a10809dc2991982673fcbf # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=parisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): hppa-linux-ld: drivers/spi/spi-dw-bt1.o: in function `dw_spi_bt1_sys_init': --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org