diff options
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/event.c | 1 | ||||
| -rw-r--r-- | tools/perf/util/header.c | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 1757b0ffeaa..2477270c1d3 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -713,6 +713,7 @@ int event__parse_sample(event_t *event, u64 type, struct sample_data *data) array++; } + data->id = -1ULL; if (type & PERF_SAMPLE_ID) { data->id = *array; array++; diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 2b9f898efea..8847bec64c5 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -922,6 +922,14 @@ perf_header__find_attr(u64 id, struct perf_header *header) { int i; + /* + * We set id to -1 if the data file doesn't contain sample + * ids. Check for this and avoid walking through the entire + * list of ids which may be large. + */ + if (id == -1ULL) + return NULL; + for (i = 0; i < header->attrs; i++) { struct perf_header_attr *attr = header->attr[i]; int j; |