*
* wakeup:
*
- * RING_BUFFER_WAKEUP_BY_TIMER uses per-cpu deferrable timers to poll the
+ * RING_BUFFER_WAKEUP_BY_TIMER uses per-cpu timers to poll the
* buffers and wake up readers if data is ready. Mainly useful for tracers which
* don't want to call into the wakeup code on the tracing path. Use in
* combination with "read_timer_interval" channel_create() argument.
* @ctx: ring buffer context to initialize
* @chan: channel
* @priv: client private data
- * @data_size: size of record data payload
+ * @data_size: size of record data payload. It must be greater than 0.
* @largest_align: largest alignment within data payload types
* @cpu: processor id
*/