summaryrefslogtreecommitdiff
path: root/drivers/hwtracing
diff options
context:
space:
mode:
authorMathieu Poirier <mathieu.poirier@linaro.org>2019-04-25 13:53:00 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-04-25 22:00:17 +0200
commitf5200aa9831f38271c8104565fdcae4401658475 (patch)
tree5735467a9c6693b2f89966292fe210f52a91ad29 /drivers/hwtracing
parent02d5c897a091f8e064f022a5383978182751d7fb (diff)
coresight: perf: Refactor function free_event_data()
Function free_event_data() is already busy and is bound to become worse with the addition of CPU-wide trace scenarios. As such spin off a new function to strickly take care of the sink buffers. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Tested-by: Leo Yan <leo.yan@linaro.org> Tested-by: Robert Walker <robert.walker@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing')
-rw-r--r--drivers/hwtracing/coresight/coresight-etm-perf.c24
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c
index b8ca3800b56b..806b3dd5872d 100644
--- a/drivers/hwtracing/coresight/coresight-etm-perf.c
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.c
@@ -120,22 +120,34 @@ out:
return ret;
}
+static void free_sink_buffer(struct etm_event_data *event_data)
+{
+ int cpu;
+ cpumask_t *mask = &event_data->mask;
+ struct coresight_device *sink;
+
+ if (WARN_ON(cpumask_empty(mask)))
+ return;
+
+ if (!event_data->snk_config)
+ return;
+
+ cpu = cpumask_first(mask);
+ sink = coresight_get_sink(etm_event_cpu_path(event_data, cpu));
+ sink_ops(sink)->free_buffer(event_data->snk_config);
+}
+
static void free_event_data(struct work_struct *work)
{
int cpu;
cpumask_t *mask;
struct etm_event_data *event_data;
- struct coresight_device *sink;
event_data = container_of(work, struct etm_event_data, work);
mask = &event_data->mask;
/* Free the sink buffers, if there are any */
- if (event_data->snk_config && !WARN_ON(cpumask_empty(mask))) {
- cpu = cpumask_first(mask);
- sink = coresight_get_sink(etm_event_cpu_path(event_data, cpu));
- sink_ops(sink)->free_buffer(event_data->snk_config);
- }
+ free_sink_buffer(event_data);
for_each_cpu(cpu, mask) {
struct list_head **ppath;