tree: https://github.com/curro/linux intel_pstate-vlp-v3 head: 320f232d1770592e468b87a378dc08ede8f654dc commit: 38a4edd698dc7ea425825088702686ee52294192 [7/16] cpufreq: intel_pstate: Implement VLP controller statistics and target range calculation. config: x86_64-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): git checkout 38a4edd698dc7ea425825088702686ee52294192 # 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 warnings (new ones prefixed by >>): In file included from drivers/cpufreq/../../kernel/sched/sched.h:70, from drivers/cpufreq/intel_pstate.c:37: 299 | #define ACPI_PROBE_TABLE(name) \ | In file included from drivers/cpufreq/intel_pstate.c:26: include/linux/acpi.h:1177: note: this is the location of the previous definition 1177 | #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table | drivers/cpufreq/intel_pstate.c:2314:13: warning: 'update_vlp_sample' defined but not used [-Wunused-function] 2314 | static bool update_vlp_sample(struct cpudata *cpu, u64 time, unsigned int flags) | ^~~~~~~~~~~~~~~~~ drivers/cpufreq/intel_pstate.c:2190:39: warning: 'get_vlp_target_range' defined but not used [-Wunused-function] 2190 | static const struct vlp_target_range *get_vlp_target_range(struct cpudata *cpu) | ^~~~~~~~~~~~~~~~~~~~ drivers/cpufreq/intel_pstate.c:2041:13: warning: 'intel_pstate_reset_vlp' defined but not used [-Wunused-function] 2041 | static void intel_pstate_reset_vlp(struct cpudata *cpu) | ^~~~~~~~~~~~~~~~~~~~~~ # https://github.com/curro/linux/commit/38a4edd698dc7ea425825088702686ee522... git remote add curro https://github.com/curro/linux git fetch --no-tags curro intel_pstate-vlp-v3 git checkout 38a4edd698dc7ea425825088702686ee52294192 vim +/ACPI_PROBE_TABLE +299 include/asm-generic/vmlinux.lds.h 6c3ff8b11a16ec Stephen Boyd 2013-10-30 297 e647b532275bb3 Marc Zyngier 2015-09-28 298 #ifdef CONFIG_ACPI e647b532275bb3 Marc Zyngier 2015-09-28 @299 #define ACPI_PROBE_TABLE(name) \ e647b532275bb3 Marc Zyngier 2015-09-28 300 . = ALIGN(8); \ a6214385005333 Masahiro Yamada 2018-05-09 301 __##name##_acpi_probe_table = .; \ 4b89b7f7aad574 Nicholas Piggin 2016-11-24 302 KEEP(*(__##name##_acpi_probe_table)) \ a6214385005333 Masahiro Yamada 2018-05-09 303 __##name##_acpi_probe_table_end = .; e647b532275bb3 Marc Zyngier 2015-09-28 304 #else e647b532275bb3 Marc Zyngier 2015-09-28 305 #define ACPI_PROBE_TABLE(name) e647b532275bb3 Marc Zyngier 2015-09-28 306 #endif e647b532275bb3 Marc Zyngier 2015-09-28 307 :::::: The code at line 299 was first introduced by commit :::::: e647b532275bb357e87272e052fccf5fcdb36a17 ACPI: Add early device probing infrastructure :::::: TO: Marc Zyngier <Marc.Zyngier(a)arm.com&gt; :::::: CC: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org