From: Adrian Hunter <[email protected]>

intel_pt_synth_branch_sample() skips synthesizing if the branch does not
match the branch filter.  That logic was sitting in the middle of the
function but is more efficiently placed at the start of the function, so
move it.

Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
 tools/perf/util/intel-pt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index c8bb5ca6a157..2c01e723826a 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -891,6 +891,9 @@ static int intel_pt_synth_branch_sample(struct 
intel_pt_queue *ptq)
        union perf_event *event = ptq->event_buf;
        struct perf_sample sample = { .ip = 0, };
 
+       if (pt->branches_filter && !(pt->branches_filter & ptq->flags))
+               return 0;
+
        event->sample.header.type = PERF_RECORD_SAMPLE;
        event->sample.header.misc = PERF_RECORD_MISC_USER;
        event->sample.header.size = sizeof(struct perf_event_header);
@@ -909,9 +912,6 @@ static int intel_pt_synth_branch_sample(struct 
intel_pt_queue *ptq)
        sample.flags = ptq->flags;
        sample.insn_len = ptq->insn_len;
 
-       if (pt->branches_filter && !(pt->branches_filter & ptq->flags))
-               return 0;
-
        if (pt->synth_opts.inject) {
                ret = intel_pt_inject_event(event, &sample,
                                            pt->branches_sample_type,
-- 
2.1.0

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