diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2018-05-31 13:23:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-03 11:23:15 +0200 |
| commit | 31606f7f56de573470f0b7037b764df381a87fa6 (patch) | |
| tree | 5aaf5ccb86609329bfcfe0f27e1bd4fa95ca67b5 /tools | |
| parent | dfd2eff6f457f2193f0dfd0de5cb3aa49df3d3e9 (diff) | |
perf intel-pt: Fix sync_switch INTEL_PT_SS_NOT_TRACING
commit dbcb82b93f3e8322891e47472c89e63058b81e99 upstream.
sync_switch is a facility to synchronize decoding more closely with the
point in the kernel when the context actually switched.
In one case, INTEL_PT_SS_NOT_TRACING state was not correctly
transitioning to INTEL_PT_SS_TRACING state due to a missing case clause.
Add it.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1527762225-26024-2-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>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/intel-pt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index b1161d725ce9..5fb78b661fd3 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -1344,6 +1344,7 @@ static int intel_pt_sample(struct intel_pt_queue *ptq) if (intel_pt_is_switch_ip(ptq, state->to_ip)) { switch (ptq->switch_state) { + case INTEL_PT_SS_NOT_TRACING: case INTEL_PT_SS_UNKNOWN: case INTEL_PT_SS_EXPECTING_SWITCH_IP: err = intel_pt_next_tid(pt, ptq); |