[RFC PATCH v6 2/3] Tracepoint API doc update: data argument

[Mathieu Desnoyers <mathieu.desnoyers@efficios.com>]

Describe the @data argument (probe private data).

Fixes: 38516ab59fbc "tracing: Let tracepoints have data passed to tracepoint callbacks"
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: Ingo Molnar <mingo@kernel.org>
CC: Frederic Weisbecker <fweisbec@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
---
 kernel/tracepoint.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index f27e5f0..2e4bfcb 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -370,6 +370,7 @@ tracepoint_add_probe(const char *name, void *probe, void *data)
  * tracepoint_probe_register -  Connect a probe to a tracepoint
  * @name: tracepoint name
  * @probe: probe handler
+ * @data: probe private data
  *
  * Returns 0 if ok, error value on error.
  * The probe address must at least be aligned on the architecture pointer size.
@@ -412,6 +413,7 @@ tracepoint_remove_probe(const char *name, void *probe, void *data)
  * tracepoint_probe_unregister -  Disconnect a probe from a tracepoint
  * @name: tracepoint name
  * @probe: probe function pointer
+ * @data: probe private data
  *
  * We do not need to call a synchronize_sched to make sure the probes have
  * finished running before doing a module unload, because the module unload
-- 
1.7.10.4