4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Adrian Hunter <adrian.hunter@xxxxxxxxx> commit ad7167a8cd174ba7d8c0d0ed8d8410521206d104 upstream. 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@xxxxxxxxx> Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/1495786658-18063-5-git-send-email-adrian.hunter@xxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 1 + 1 file changed, 1 insertion(+) --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -2115,6 +2115,7 @@ const struct intel_pt_state *intel_pt_de 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);