1 files changed, 20 insertions, 16 deletions

diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h
index 01d7b222e004..ab02007e131d 100644
--- a/kernel/trace/trace_probe.h
+++ b/kernel/trace/trace_probe.h
@@ -248,16 +248,32 @@ static inline bool trace_probe_is_registered(struct trace_probe *tp)
 	return !!(tp->flags & TP_FLAG_REGISTERED);
 }
 
-int trace_probe_init(struct trace_probe *tp, const char *event,
-		     const char *group);
-void trace_probe_cleanup(struct trace_probe *tp);
-int trace_probe_register_event_call(struct trace_probe *tp);
 static inline int trace_probe_unregister_event_call(struct trace_probe *tp)
 {
 	/* tp->event is unregistered in trace_remove_event_call() */
 	return trace_remove_event_call(&tp->call);
 }
 
+static inline bool trace_probe_has_single_file(struct trace_probe *tp)
+{
+	return !!list_is_singular(&tp->files);
+}
+
+int trace_probe_init(struct trace_probe *tp, const char *event,
+		     const char *group);
+void trace_probe_cleanup(struct trace_probe *tp);
+int trace_probe_register_event_call(struct trace_probe *tp);
+int trace_probe_add_file(struct trace_probe *tp, struct trace_event_file *file);
+int trace_probe_remove_file(struct trace_probe *tp,
+			    struct trace_event_file *file);
+struct event_file_link *trace_probe_get_file_link(struct trace_probe *tp,
+						struct trace_event_file *file);
+
+#define trace_probe_for_each_link(pos, tp)	\
+	list_for_each_entry(pos, &(tp)->files, list)
+#define trace_probe_for_each_link_rcu(pos, tp)	\
+	list_for_each_entry_rcu(pos, &(tp)->files, list)
+
 /* Check the name is good for event/group/fields */
 static inline bool is_good_name(const char *name)
 {
@@ -270,18 +286,6 @@ static inline bool is_good_name(const char *name)
 	return true;
 }
 
-static inline struct event_file_link *
-find_event_file_link(struct trace_probe *tp, struct trace_event_file *file)
-{
-	struct event_file_link *link;
-
-	list_for_each_entry(link, &tp->files, list)
-		if (link->file == file)
-			return link;
-
-	return NULL;
-}
-
 #define TPARG_FL_RETURN BIT(0)
 #define TPARG_FL_KERNEL BIT(1)
 #define TPARG_FL_FENTRY BIT(2)