linux-kernel - [tip:perf/core] perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO

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Message-ID: <tip-ad7167a8cd174ba7d8c0d0ed8d8410521206d104@git.kernel.org>
Date:   Wed, 21 Jun 2017 11:21:27 -0700
From:   tip-bot for Adrian Hunter <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     ak@...ux.intel.com, adrian.hunter@...el.com, acme@...hat.com,
        hpa@...or.com, linux-kernel@...r.kernel.org, tglx@...utronix.de,
        mingo@...nel.org
Subject: [tip:perf/core] perf intel-pt: Ensure IP is zero when state is
 INTEL_PT_STATE_NO_IP

Commit-ID:  ad7167a8cd174ba7d8c0d0ed8d8410521206d104
Gitweb:     http://git.kernel.org/tip/ad7167a8cd174ba7d8c0d0ed8d8410521206d104
Author:     Adrian Hunter <adrian.hunter@...el.com>
AuthorDate: Fri, 26 May 2017 11:17:05 +0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 21 Jun 2017 11:35:44 -0300

perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP

A value of zero is used to indicate that there is no IP. Ensure the
value is zero when the state is INTEL_PT_STATE_NO_IP.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: stable@...r.kernel.org
Link: http://lkml.kernel.org/r/1495786658-18063-5-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 | 1 +
 1 file changed, 1 insertion(+)

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 28b16c3..f9cd3aa 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -2117,6 +2117,7 @@ const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder)
 			break;
 		case INTEL_PT_STATE_NO_IP:
 			decoder->last_ip = 0;
+			decoder->ip = 0;
 			/* Fall through */
 		case INTEL_PT_STATE_ERR_RESYNC:
 			err = intel_pt_sync_ip(decoder);