From 47446212832871e66f3b5fbf021c148eced2e24c Mon Sep 17 00:00:00 2001 From: Mike Leach Date: Tue, 16 Jun 2020 17:40:41 +0100 Subject: [PATCH] perf cs-etm: Allow no CoreSight sink to be specified on command line Adjust the handling of the session sink selection to allow no sink to be selected on the command line. This then forwards the sink selection to the CoreSight infrastructure which will attempt to select a sink based on the default sink select priorities. Signed-off-by: Mike Leach Tested-by: Leo Yan Cc: Mathieu Poirier Cc: Peter Zijlstra Cc: Suzuki Poulouse Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/arm/util/cs-etm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c index cea5e33d61d2..cad7bf783413 100644 --- a/tools/perf/arch/arm/util/cs-etm.c +++ b/tools/perf/arch/arm/util/cs-etm.c @@ -243,10 +243,10 @@ static int cs_etm_set_sink_attr(struct perf_pmu *pmu, } /* - * No sink was provided on the command line - for _now_ treat - * this as an error. + * No sink was provided on the command line - allow the CoreSight + * system to look for a default */ - return ret; + return 0; } static int cs_etm_recording_options(struct auxtrace_record *itr,