Hi Giovanni, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/sched/core] [cannot apply to v5.4-rc1 next-20191002] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Giovanni-Gherdovich/Add-support-for-frequency-invariance-for-some-x86/20191002-221807 config: x86_64-defconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-13) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): >> arch/x86/kernel/smpboot.c:1834:7: error: 'INTEL_FAM6_ATOM_GOLDMONT_D' undeclared here (not in a function); did you mean 'INTEL_FAM6_ATOM_GOLDMONT_X'? ICPU(INTEL_FAM6_ATOM_GOLDMONT_D), ^ arch/x86/kernel/smpboot.c:1824:25: note: in definition of macro 'ICPU' { X86_VENDOR_INTEL, 6, model, X86_FEATURE_APERFMPERF, 0} ^~~~~ vim +1834 arch/x86/kernel/smpboot.c 1831 1832 static const struct x86_cpu_id has_turbo_ratio_group_limits[] = { 1833 ICPU(INTEL_FAM6_ATOM_GOLDMONT), > 1834 ICPU(INTEL_FAM6_ATOM_GOLDMONT_D), 1835 ICPU(INTEL_FAM6_ATOM_GOLDMONT_PLUS), 1836 ICPU(INTEL_FAM6_SKYLAKE_X), 1837 {} 1838 }; 1839 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation