From: Adrian Hunter Date: Thu, 31 May 2018 10:23:42 +0000 (+0300) Subject: perf intel-pt: Fix sync_switch INTEL_PT_SS_NOT_TRACING X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9e9db211cfb9e29456edc7cbf302b2b4c44b3d87;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index d9573c1fa555..a39fc1200e2d 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -1560,6 +1560,7 @@ 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);