diff options
Diffstat (limited to 'tools/perf/util/s390-sample-raw.c')
-rw-r--r-- | tools/perf/util/s390-sample-raw.c | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/tools/perf/util/s390-sample-raw.c b/tools/perf/util/s390-sample-raw.c index dddd2be59827..235319d45d02 100644 --- a/tools/perf/util/s390-sample-raw.c +++ b/tools/perf/util/s390-sample-raw.c @@ -129,6 +129,28 @@ static int get_counterset_start(int setnr) } } +struct get_counter_name_data { + int wanted; + const char *result; +}; + +static int get_counter_name_callback(const struct pmu_event *evp, + const struct pmu_event *table __maybe_unused, + void *vdata) +{ + struct get_counter_name_data *data = vdata; + int rc, event_nr; + + if (evp->name == NULL || evp->event == NULL) + return 0; + rc = sscanf(evp->event, "event=%x", &event_nr); + if (rc == 1 && event_nr == data->wanted) { + data->result = evp->name; + return 1; /* Terminate the search. */ + } + return 0; +} + /* Scan the PMU table and extract the logical name of a counter from the * PMU events table. Input is the counter set and counter number with in the * set. Construct the event number and use this as key. If they match return @@ -137,20 +159,16 @@ static int get_counterset_start(int setnr) */ static const char *get_counter_name(int set, int nr, const struct pmu_event *table) { - int rc, event_nr, wanted = get_counterset_start(set) + nr; + struct get_counter_name_data data = { + .wanted = get_counterset_start(set) + nr, + .result = NULL, + }; - if (table) { - const struct pmu_event *evp = table; + if (!table) + return NULL; - for (; evp->name || evp->event || evp->desc; ++evp) { - if (evp->name == NULL || evp->event == NULL) - continue; - rc = sscanf(evp->event, "event=%x", &event_nr); - if (rc == 1 && event_nr == wanted) - return evp->name; - } - } - return NULL; + pmu_events_table_for_each_event(table, get_counter_name_callback, &data); + return data.result; } static void s390_cpumcfdg_dump(struct perf_sample *sample) |