perf mmap: Simplify perf_mmap__read_event()
It isn't necessary to pass the 'overwrite', 'start' and 'end' argument
to perf_mmap__read_event(). Discard them.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1520350567-80082-7-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 27eadf3..29fda50 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2509,7 +2509,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
if (perf_mmap__read_init(md, false, &start, &end) < 0)
continue;
- while ((event = perf_mmap__read_event(md, false, &start, end)) != NULL) {
+ while ((event = perf_mmap__read_event(md)) != NULL) {
struct perf_sample sample;
++trace->nr_events;