tracing: Convert module refcnt events to DEFINE_EVENT

Use DECLARE_EVENT_CLASS to remove duplicate code:

   text    data     bss     dec     hex filename
  29854    1980     128   31962    7cda kernel/module.o.old
  28750    1980     128   30858    788a kernel/module.o

Two events are converted:

  module_refcnt: module_get, module_put

No change in functionality.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4B0E283B.3010508@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

include/trace/events/module.h

@@ -51,7 +51,7 @@ TRACE_EVENT(module_free,
 	TP_printk("%s", __get_str(name))
 );
 
-TRACE_EVENT(module_get,
+DECLARE_EVENT_CLASS(module_refcnt,
 
 	TP_PROTO(struct module *mod, unsigned long ip, int refcnt),
 
@@ -73,26 +73,18 @@ TRACE_EVENT(module_get,
 		  __get_str(name), (void *)__entry->ip, __entry->refcnt)
 );
 
-TRACE_EVENT(module_put,
+DEFINE_EVENT(module_refcnt, module_get,
 
 	TP_PROTO(struct module *mod, unsigned long ip, int refcnt),
 
-	TP_ARGS(mod, ip, refcnt),
+	TP_ARGS(mod, ip, refcnt)
+);
 
-	TP_STRUCT__entry(
-		__field(	unsigned long,	ip		)
-		__field(	int,		refcnt		)
-		__string(	name,		mod->name	)
-	),
+DEFINE_EVENT(module_refcnt, module_put,
 
-	TP_fast_assign(
-		__entry->ip	= ip;
-		__entry->refcnt	= refcnt;
-		__assign_str(name, mod->name);
-	),
+	TP_PROTO(struct module *mod, unsigned long ip, int refcnt),
 
-	TP_printk("%s call_site=%pf refcnt=%d",
-		  __get_str(name), (void *)__entry->ip, __entry->refcnt)
+	TP_ARGS(mod, ip, refcnt)
 );
 
 TRACE_EVENT(module_request,