linux-kernel - [tip:perf/urgent] perf intel-pt: Fix decoding to accept CBR between FUP and corresponding TIP

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Message-ID: <tip-bd2e49ec48feb1855f7624198849eea4610e2286@git.kernel.org>
Date:   Thu, 7 Jun 2018 01:22:38 -0700
From:   tip-bot for Adrian Hunter <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, tglx@...utronix.de,
        adrian.hunter@...el.com, hpa@...or.com, mingo@...nel.org,
        acme@...hat.com
Subject: [tip:perf/urgent] perf intel-pt: Fix decoding to accept CBR between
 FUP and corresponding TIP

Commit-ID:  bd2e49ec48feb1855f7624198849eea4610e2286
Gitweb:     https://git.kernel.org/tip/bd2e49ec48feb1855f7624198849eea4610e2286
Author:     Adrian Hunter <adrian.hunter@...el.com>
AuthorDate: Thu, 31 May 2018 13:23:43 +0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 6 Jun 2018 12:52:07 -0300

perf intel-pt: Fix decoding to accept CBR between FUP and corresponding TIP

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@...el.com>
Cc: stable@...r.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@...hat.com>
---
 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index f9157aed1289..e5eb91777383 100644
--- 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 intel_pt_decoder *decoder)
 		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 intel_pt_decoder *decoder)
 			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);