FYI, we noticed a +1297 bytes kernel size regression due to commit: commit: 863b9cd3373691a58657968e362cae31d118b57b (perf/x86/intel: Support hardware TopDown metrics) Details as below (size data is obtained by `nm --size-sort vmlinux`): 291f2495: perf/x86/intel: Fix the name of perf capabilities for perf METRICS 863b9cd3: perf/x86/intel: Support hardware TopDown metrics +-----------------------------------+----------+----------+-------+ | symbol | 291f2495 | 863b9cd3 | delta | +-----------------------------------+----------+----------+-------+ | bzImage | 439040 | 439712 | 672 | | nm.t.icl_update_topdown_event | 0 | 211 | 211 | | nm.t.__icl_update_topdown_event | 0 | 199 | 199 | | nm.t.intel_pmu_hw_config | 376 | 561 | 185 | | nm.d.intel_icl_event_constraints | 720 | 880 | 160 | | nm.t.collect_events | 224 | 348 | 124 | | nm.t.icl_set_topdown_event_period | 0 | 84 | 84 | | nm.t.intel_pmu_read_event | 19 | 86 | 67 | | nm.d.intel_icl_extra_regs | 160 | 224 | 64 | | nm.t.is_metric_event | 0 | 60 | 60 | | nm.t.x86_pmu_del | 182 | 212 | 30 | | nm.T.x86_perf_event_set_period | 417 | 446 | 29 | | nm.t.handle_pmi_common | 559 | 588 | 29 | | nm.T.x86_perf_event_update | 234 | 256 | 22 | | nm.T.intel_pmu_init | 4204 | 4225 | 21 | | nm.D.x86_pmu | 328 | 336 | 8 | | nm.D.cpu_hw_events | 3788 | 3792 | 4 | +-----------------------------------+----------+----------+-------+ Thanks, Kbuild test robot