X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=include%2Fust%2Ftracepoint.h;h=5e7f9d86967580fd314ca1b21621e678ff585f85;hb=34dca3cc6e0b230c988b16117b967a094560f4ed;hp=3d61f72883c762cc44ad64fb5c4c005d281d2084;hpb=9edd34bd25f52dd39b354a84f02697254121aefd;p=ust.git

diff --git a/include/ust/tracepoint.h b/include/ust/tracepoint.h
index 3d61f72..5e7f9d8 100644
--- a/include/ust/tracepoint.h
+++ b/include/ust/tracepoint.h
@@ -70,12 +70,13 @@ struct tracepoint {
 /*
  * it_func[0] is never NULL because there is at least one element in the array
  * when the array itself is non NULL.
+ * __attribute__((unused)) is for backward compatibility API.
  */
 #define __DO_TRACE(tp, proto, args)					\
 	do {								\
 		struct tracepoint_probe *__tp_it_probe_ptr;		\
 		void *__tp_it_func;					\
-		void *__tp_cb_data;					\
+		void *__tp_cb_data __attribute__((unused));		\
 									\
 		rcu_read_lock();					\
 		__tp_it_probe_ptr = rcu_dereference((tp)->probes);	\
@@ -124,6 +125,29 @@ struct tracepoint {
 	{								\
 		return __tracepoint_probe_unregister(#name, (void *)probe, \
 						   data);		\
+	}								\
+	/*								\
+	 * Backward-compatibility API (will be deprecated):		\
+	 * trace_*							\
+	 * register_trace_*						\
+	 * unregister_trace_*						\
+	 */								\
+	static inline void trace_##name(proto)				\
+	{								\
+		__CHECK_TRACE(name, TP_PROTO(proto),			\
+			      TP_ARGS(args));				\
+	}								\
+	static inline int						\
+	register_trace_##name(void (*probe)(proto))			\
+	{								\
+		return __tracepoint_probe_register(#name, (void *)probe,\
+						   NULL);		\
+	}								\
+	static inline int						\
+	unregister_trace_##name(void (*probe)(proto))			\
+	{								\
+		return __tracepoint_probe_unregister(#name, (void *)probe, \
+						     NULL);		\
 	}
 
 /*
@@ -194,6 +218,16 @@ int tracepoint_register_lib(struct tracepoint * const *tracepoints_start,
 extern
 int tracepoint_unregister_lib(struct tracepoint * const *tracepoints_start);
 
+/*
+ * Backward-compatibility API (will be deprecated):
+ * DEFINE_TRACE
+ * DECLARE_TRACE
+ * register_tracepoint
+ * unregister_tracepoint
+ */
+#define DEFINE_TRACE	_DEFINE_TRACEPOINT
+#define DECLARE_TRACE(name, proto, args)	\
+		_DECLARE_TRACEPOINT(name, TP_PARAMS(proto), TP_PARAMS(args))
 
 #ifndef TRACEPOINT_EVENT
 /*