[lkp] [+685 bytes kernel size regression] [i386-tinyconfig] [7bb891f9f0] perf/x86/intel: Generic support for hardware TopDown metrics

[lkp] [+685 bytes kernel size regression] [i386-tinyconfig] [7bb891f9f0] perf/x86/intel: Generic support for hardware TopDown metrics

[kernel test robot]

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FYI, we noticed a +685 bytes kernel size regression due to commit:

commit: 7bb891f9f056ddd73bec1aa5ae8886e1c47c06b8 (perf/x86/intel: Generic support for hardware TopDown metrics)
https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git perf/metric

Details as below (size data is obtained by `nm --size-sort vmlinux`):

dd098afa: perf/core: Add a new PERF_EV_CAP_SIBLING event capability
7bb891f9: perf/x86/intel: Generic support for hardware TopDown metrics

+--------------------------------+----------+----------+-------+
|             symbol             | dd098afa | 7bb891f9 | delta |
+--------------------------------+----------+----------+-------+
| bzImage                        | 444448   | 444736   | 288   |
| nm.t.intel_pmu_hw_config       | 387      | 624      | 237   |
| nm.t.collect_event             | 0        | 123      | 123   |
| nm.t.intel_pmu_read_event      | 19       | 93       | 74    |
| nm.t.intel_pmu_disable_event   | 261      | 318      | 57    |
| nm.t.intel_pmu_enable_event    | 448      | 503      | 55    |
| nm.t.x86_pmu_del               | 213      | 264      | 51    |
| nm.T.x86_perf_event_set_period | 446      | 477      | 31    |
| nm.t.handle_pmi_common         | 516      | 543      | 27    |
| nm.T.x86_perf_event_update     | 264      | 288      | 24    |
| nm.t.x86_pmu_enable            | 514      | 523      | 9     |
| nm.D.x86_pmu                   | 356      | 364      | 8     |
| nm.D.cpu_hw_events             | 3808     | 3812     | 4     |
| nm.t.collect_events            | 248      | 233      | -15   |
+--------------------------------+----------+----------+-------+



Thanks