On Fri, Aug 21, 2020 at 11:44:29AM +0800, Tingwei Zhang wrote: > When coresight_build_path() fails on all the cpus, etm_setup_aux > calls etm_free_aux() to free allocated event_data. > WARN_ON(cpumask_empty(mask) will be triggered since cpu mask is empty. > Check event_data->snk_config is not NULL first to avoid this > warning. > > Signed-off-by: Tingwei Zhang <ting...@codeaurora.org> > Reviewed-by: Mike Leach <mike.le...@linaro.org> > Reviewed-by: Suzuki K Poulose <suzuki.poul...@arm.com> > Reviewed-by: Mathieu Poirier <mathieu.poir...@linaro.org>
What happend to the Fixed tag that was in V8? This is casting doubts on the reset of this set. > --- > drivers/hwtracing/coresight/coresight-etm-perf.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c > b/drivers/hwtracing/coresight/coresight-etm-perf.c > index dcb0592418ae..3728c44e5763 100644 > --- a/drivers/hwtracing/coresight/coresight-etm-perf.c > +++ b/drivers/hwtracing/coresight/coresight-etm-perf.c > @@ -126,10 +126,10 @@ static void free_sink_buffer(struct etm_event_data > *event_data) > cpumask_t *mask = &event_data->mask; > struct coresight_device *sink; > > - if (WARN_ON(cpumask_empty(mask))) > + if (!event_data->snk_config) > return; > > - if (!event_data->snk_config) > + if (WARN_ON(cpumask_empty(mask))) > return; > > cpu = cpumask_first(mask); > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project >
