[PATCH V1 21/23] libperf evsel: Add comments for booleans

[Adrian Hunter]

Add comments for 'system_wide' and 'requires_cpu' booleans

Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
 tools/lib/perf/include/internal/evsel.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/lib/perf/include/internal/evsel.h b/tools/lib/perf/include/internal/evsel.h
index 77fbb8b97e5c..f613c3ae868e 100644
--- a/tools/lib/perf/include/internal/evsel.h
+++ b/tools/lib/perf/include/internal/evsel.h
@@ -49,7 +49,15 @@ struct perf_evsel {
 
 	/* parse modifier helper */
 	int			 nr_members;
+	/*
+	 * system_wide is for events that need to be on every CPU, irrespective
+	 * of user requested CPUs or threads.
+	 */
 	bool			 system_wide;
+	/*
+	 * Some events, for example uncore events, require a CPU.
+	 * i.e. it cannot be -1
+	 */
 	bool			 requires_cpu;
 	int			 idx;
 };
-- 
2.25.1