[tip:perf/core] perf intel-pt: Clear FUP flag on error

tip-bot for Adrian Hunter
2017-06-21T18:25:00Z

Commit-ID: 6a558f12dbe85437acbdec5e149ea07b5554eced
Gitweb: http://git.kernel.org/tip/6a558f12dbe85437acbdec5e149ea07b5554eced
Author: Adrian Hunter <adrian.hunter@intel.com>
AuthorDate: Fri, 26 May 2017 11:17:09 +0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 21 Jun 2017 11:35:47 -0300

perf intel-pt: Clear FUP flag on error

Sometimes a FUP packet is associated with a TSX transaction and a flag is
set to indicate that. Ensure that flag is cleared on any error condition
because at that point the decoder can no longer assume it is correct.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1495786658-18063-9-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 2 ++
1 file changed, 2 insertions(+)

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 923c60e..a977101 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -1962,6 +1962,8 @@ static int intel_pt_sync_ip(struct intel_pt_decoder *decoder)
{
int err;

+ decoder->set_fup_tx_flags = false;
+
intel_pt_log("Scanning for full IP\n");
err = intel_pt_walk_to_ip(decoder);
if (err)