From: Kan Liang <kan.li...@linux.intel.com> Using the 'start', 'end' and 'overwrite' which are stored in struct perf_mmap to replace the parameters of perf_mmap__read_event(). The parameters will be discarded later.
No functional change. Signed-off-by: Kan Liang <kan.li...@linux.intel.com> --- tools/perf/util/mmap.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c index 4cb3614..da9e68b 100644 --- a/tools/perf/util/mmap.c +++ b/tools/perf/util/mmap.c @@ -76,8 +76,8 @@ static union perf_event *perf_mmap__read(struct perf_mmap *map, * perf_mmap__read_done() */ union perf_event *perf_mmap__read_event(struct perf_mmap *map, - bool overwrite, - u64 *startp, u64 end) + bool overwrite __maybe_unused, + u64 *startp, u64 end __maybe_unused) { union perf_event *event; @@ -91,13 +91,14 @@ union perf_event *perf_mmap__read_event(struct perf_mmap *map, return NULL; /* non-overwirte doesn't pause the ringbuffer */ - if (!overwrite) - end = perf_mmap__read_head(map); + if (!map->overwrite) + map->end = perf_mmap__read_head(map); - event = perf_mmap__read(map, startp, end); + event = perf_mmap__read(map, &map->start, map->end); + *startp = map->start; - if (!overwrite) - map->prev = *startp; + if (!map->overwrite) + map->prev = map->start; return event; } -- 2.4.11