Vince noted that commit: 6cbc304f2f36 ("perf/x86/intel: Fix unwind errors from PEBS entries (mk-II)") 'leaked' __PERF_SAMPLE_CALLCHAIN_EARLY into the UAPI namespace. And while sys_perf_event_open() will error out if you try to use it, it is exposed. Clearly mark it for internal use only to avoid any confusion.
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| @@ -144,7 +144,7 @@ enum perf_event_sample_format { · 143 unmodified lines | |||
| 144 | 144 | ||
| 145 | PERF_SAMPLE_MAX = 1U << 20, /* non-ABI */ | 145 | PERF_SAMPLE_MAX = 1U << 20, /* non-ABI */ |
| 146 | 146 | ||
| 147 | __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, | 147 | __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, /* non-ABI; internal use */ |
| 148 | }; | 148 | }; |
| 149 | 149 | ||
| 150 | /* | 150 | /* |