Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit dbcb82b9 authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

perf intel-pt: Fix sync_switch INTEL_PT_SS_NOT_TRACING 



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: default avatarAdrian 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent ec1e6e6a

tools/perf/util/intel-pt.c

+1 −0
Original line number Diff line number Diff line
@@ -1521,6 +1521,7 @@ 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);