libperf: Get rid of attr.id field

Now there's no in-tree user of the field.  To remove the possible bug
later, let's get rid of the 'id' field and add a comment for that.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230825152552.112913-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2023-08-25 08:25:52 -07:00 committed by Arnaldo Carvalho de Melo
parent f174341d0d
commit c091c78b73

@ -148,7 +148,13 @@ struct perf_record_switch {
struct perf_record_header_attr {
struct perf_event_header header;
struct perf_event_attr attr;
__u64 id[];
/*
* Array of u64 id follows here but we cannot use a flexible array
* because size of attr in the data can be different then current
* version. Please use perf_record_header_attr_id() below.
*
* __u64 id[]; // do not use this
*/
};
/* Returns the pointer to id array based on the actual attr size. */