From 3ad31d8a0df257c3f18c989119359c1f25cd009d Mon Sep 17 00:00:00 2001 From: Jiri Olsa <jolsa@kernel.org> Date: Thu, 3 Aug 2017 16:07:05 +0200 Subject: [PATCH] perf evsel: Centralize perf_sample initialization Move the initialization bits into common place at the beginning of the function. Also removing some superfluous zero initialization for addr and transaction, because we zero all the data at the top. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-1gv5t6fvv735t1rt3mxpy1h9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/evsel.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index b8e9def77f44..03d7abcdc6b7 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1983,6 +1983,8 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, data->stream_id = data->id = data->time = -1ULL; data->period = evsel->attr.sample_period; data->cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + data->id = -1ULL; + data->data_src = PERF_MEM_DATA_SRC_NONE; if (event->header.type != PERF_RECORD_SAMPLE) { if (!evsel->attr.sample_id_all) @@ -2000,7 +2002,6 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, if (evsel->sample_size + sizeof(event->header) > event->header.size) return -EFAULT; - data->id = -1ULL; if (type & PERF_SAMPLE_IDENTIFIER) { data->id = *array; array++; @@ -2030,7 +2031,6 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, array++; } - data->addr = 0; if (type & PERF_SAMPLE_ADDR) { data->addr = *array; array++; @@ -2194,14 +2194,12 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, array++; } - data->data_src = PERF_MEM_DATA_SRC_NONE; if (type & PERF_SAMPLE_DATA_SRC) { OVERFLOW_CHECK_u64(array); data->data_src = *array; array++; } - data->transaction = 0; if (type & PERF_SAMPLE_TRANSACTION) { OVERFLOW_CHECK_u64(array); data->transaction = *array; -- GitLab