Mathieu Poirier [off-list ref] writes:

+static void *etb_get_config(struct coresight_device *csdev, int cpu,
+			    void **pages, int nr_pages, bool overwrite)
+{
+	int node;
+	struct cs_buffers *buf;
+
+	if (cpu == -1)
+		cpu = smp_processor_id();
+	node = cpu_to_node(cpu);
+
+	buf = kzalloc_node(sizeof(struct cs_buffers), GFP_KERNEL, node);
+	if (!buf)
+		return NULL;
+
+	buf->snapshot = overwrite;
+	buf->nr_pages = nr_pages;
+	buf->data_pages = pages;
+
+	return buf;
+}

Nitpick: why is this called "get_config"? I was just looking for
something else and noticed that both sources and sinks have
.get_config() callback (I was looking for the source's one), but this
guy doesn't seem to be getting any config, but rather allocating a
buffer descriptor.

Regards,
--
Alex