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Subject[PATCH 4.14 120/157] perf intel-pt: Fix decoding to accept CBR between FUP and corresponding TIP
Date
4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Adrian Hunter <adrian.hunter@intel.com>

commit bd2e49ec48feb1855f7624198849eea4610e2286 upstream.

It is possible to have a CBR packet between a FUP packet and
corresponding TIP packet. Stop treating it as an error.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1527762225-26024-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -1604,7 +1604,6 @@ static int intel_pt_walk_fup_tip(struct
case INTEL_PT_PSB:
case INTEL_PT_TSC:
case INTEL_PT_TMA:
- case INTEL_PT_CBR:
case INTEL_PT_MODE_TSX:
case INTEL_PT_BAD:
case INTEL_PT_PSBEND:
@@ -1620,6 +1619,10 @@ static int intel_pt_walk_fup_tip(struct
decoder->pkt_step = 0;
return -ENOENT;

+ case INTEL_PT_CBR:
+ intel_pt_calc_cbr(decoder);
+ break;
+
case INTEL_PT_OVF:
return intel_pt_overflow(decoder);


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