Hi Jae, FYI, the error/warning still remains. tree: https://github.com/shenki/linux dev-5.4 head: 43e79c6defc55f9c0e3190aa2c2ed0bd1b704e07 commit: 7e257405c9de65fb83b8a419e919662bc5fd6aea [162/293] hwmon: Add PECI dimmtemp driver config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/shenki/linux/commit/7e257405c9de65fb83b8a419e919662bc5... git remote add shenki https://github.com/shenki/linux git fetch --no-tags shenki dev-5.4 git checkout 7e257405c9de65fb83b8a419e919662bc5fd6aea # save the attached .config to linux build tree make W=1 ARCH=i386 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 >>): 39 | INTEL_FAM6_SKYLAKE_XD, | ^~~~~~~~~~~~~~~~~~~~~ | INTEL_FAM6_SKYLAKE_X vim +39 drivers/hwmon/peci-dimmtemp.c 34 35 static const u8 support_model[] = { 36 INTEL_FAM6_HASWELL_X, 37 INTEL_FAM6_BROADWELL_X, 38 INTEL_FAM6_SKYLAKE_X, 40 }; 41 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org