Hi Jae, FYI, the error/warning still remains. tree: https://github.com/shenki/linux dev-5.4 head: 43e79c6defc55f9c0e3190aa2c2ed0bd1b704e07 commit: 89d561847e6b7d3093ac13de78f263470403d0a6 [159/293] mfd: intel-peci-client: Add Intel PECI client 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/89d561847e6b7d3093ac13de78f2634704... git remote add shenki https://github.com/shenki/linux git fetch --no-tags shenki dev-5.4 git checkout 89d561847e6b7d3093ac13de78f263470403d0a6 # 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 >>): 47 | .model = INTEL_FAM6_SKYLAKE_XD, | ^~~~~~~~~~~~~~~~~~~~~ | INTEL_FAM6_SKYLAKE_X vim +47 drivers/mfd/intel-peci-client.c 25 26 static const struct cpu_gen_info cpu_gen_info_table[] = { 27 { /* Haswell Xeon */ 28 .family = INTEL_FAM6, 29 .model = INTEL_FAM6_HASWELL_X, 30 .core_max = CORE_MAX_ON_HSX, 31 .chan_rank_max = CHAN_RANK_MAX_ON_HSX, 32 .dimm_idx_max = DIMM_IDX_MAX_ON_HSX }, 33 { /* Broadwell Xeon */ 34 .family = INTEL_FAM6, 35 .model = INTEL_FAM6_BROADWELL_X, 36 .core_max = CORE_MAX_ON_BDX, 37 .chan_rank_max = CHAN_RANK_MAX_ON_BDX, 38 .dimm_idx_max = DIMM_IDX_MAX_ON_BDX }, 39 { /* Skylake Xeon */ 40 .family = INTEL_FAM6, 41 .model = INTEL_FAM6_SKYLAKE_X, 42 .core_max = CORE_MAX_ON_SKX, 43 .chan_rank_max = CHAN_RANK_MAX_ON_SKX, 44 .dimm_idx_max = DIMM_IDX_MAX_ON_SKX }, 45 { /* Skylake Xeon D */ 46 .family = INTEL_FAM6, 48 .core_max = CORE_MAX_ON_SKXD, 49 .chan_rank_max = CHAN_RANK_MAX_ON_SKXD, 50 .dimm_idx_max = DIMM_IDX_MAX_ON_SKXD }, 51 }; 52 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org