tree: https://git.linaro.org/people/lee.jones/linux.git tb-fix-w1-warnings head: b33560d642c8ea83affcb007242f62c66b210756 commit: 16c1df60554a52038b730ada058d88ca3669943c [188/190] staging: comedi: drivers: ni_mio_common: Unstaticify 'range_ni_E_ao_ext' as it's clearly not local config: x86_64-randconfig-c022-20210409 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add lee-linaro https://git.linaro.org/people/lee.jones/linux.git git fetch --no-tags lee-linaro tb-fix-w1-warnings git checkout 16c1df60554a52038b730ada058d88ca3669943c # save the attached .config to linux build tree make W=1 ARCH=x86_64 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 >>): ld: drivers/staging/comedi/drivers/ni_mio_cs.o:drivers/staging/comedi/drivers/ni_stc.h:1140: multiple definition of `range_ni_E_ao_ext'; drivers/staging/comedi/drivers/ni_atmio.o:drivers/staging/comedi/drivers/ni_stc.h:1140: first defined here --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org