tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a90af8f15bdc9449ee2d24e1d73fa3f7e8633f81 commit: d6c754130435ab786711bed75d04a2388a6b4da8 perf/x86/intel/uncore: Generic support for the MSR type of uncore blocks date: 8 months ago compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; cppcheck possible warnings: (new ones prefixed by >>, may not real problems) sprintf(pmu->name, "uncore_type_%u", type->type_id); ^ sprintf(pmu->name, "uncore_type_%u_%d", ^ sprintf(pmu->name, "uncore_type_%u_%d", ^ vim +847 arch/x86/events/intel/uncore.c 314d9f63f38509 arch/x86/kernel/cpu/perf_event_intel_uncore.c Yan, Zheng 2012-09-10 836 d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 837 static void uncore_get_pmu_name(struct intel_uncore_pmu *pmu) d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 838 { d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 839 struct intel_uncore_type *type = pmu->type; d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 840 d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 841 /* d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 842 * No uncore block name in discovery table. d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 843 * Use uncore_type_&typeid_&boxid as name. d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 844 */ d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 845 if (!type->name) { d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 846 if (type->num_boxes == 1) d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 @847 sprintf(pmu->name, "uncore_type_%u", type->type_id); d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 848 else { d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 @849 sprintf(pmu->name, "uncore_type_%u_%d", d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 850 type->type_id, type->box_ids[pmu->pmu_idx]); d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 851 } d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 852 return; d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 853 } d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 854 d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 855 if (type->num_boxes == 1) { d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 856 if (strlen(type->name) > 0) d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 857 sprintf(pmu->name, "uncore_%s", type->name); d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 858 else d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 859 sprintf(pmu->name, "uncore"); d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 860 } else d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 861 sprintf(pmu->name, "uncore_%s_%d", type->name, pmu->pmu_idx); d6c754130435ab arch/x86/events/intel/uncore.c Kan Liang 2021-03-17 862 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org