tracing: rename DEFINE_TRACE_FMT to just TRACE_FORMAT

There's been a bit confusion to whether DEFINE/DECLARE_TRACE_FMT should
be a DEFINE or a DECLARE. Ingo Molnar suggested simply calling it
TRACE_FORMAT.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>

include/linux/tracepoint.h

@@ -153,7 +153,7 @@ static inline void tracepoint_synchronize_unregister(void)
 	synchronize_sched();
 }
 
-#define DEFINE_TRACE_FMT(name, proto, args, fmt)		\
+#define TRACE_FORMAT(name, proto, args, fmt)		\
 	DECLARE_TRACE(name, TPPROTO(proto), TPARGS(args))
 
 #endif

include/trace/sched_event_types.h

@@ -1,72 +1,72 @@
 
 /* use <trace/sched.h> instead */
-#ifndef DEFINE_TRACE_FMT
+#ifndef TRACE_FORMAT
 # error Do not include this file directly.
 # error Unless you know what you are doing.
 #endif
 
-DEFINE_TRACE_FMT(sched_kthread_stop,
+TRACE_FORMAT(sched_kthread_stop,
 	TPPROTO(struct task_struct *t),
 	TPARGS(t),
 	TPFMT("task %s:%d", t->comm, t->pid));
 
-DEFINE_TRACE_FMT(sched_kthread_stop_ret,
+TRACE_FORMAT(sched_kthread_stop_ret,
 	TPPROTO(int ret),
 	TPARGS(ret),
 	TPFMT("ret=%d", ret));
 
-DEFINE_TRACE_FMT(sched_wait_task,
+TRACE_FORMAT(sched_wait_task,
 	TPPROTO(struct rq *rq, struct task_struct *p),
 	TPARGS(rq, p),
 	TPFMT("task %s:%d", p->comm, p->pid));
 
-DEFINE_TRACE_FMT(sched_wakeup,
+TRACE_FORMAT(sched_wakeup,
 	TPPROTO(struct rq *rq, struct task_struct *p, int success),
 	TPARGS(rq, p, success),
 	TPFMT("task %s:%d %s",
 	      p->comm, p->pid, success?"succeeded":"failed"));
 
-DEFINE_TRACE_FMT(sched_wakeup_new,
+TRACE_FORMAT(sched_wakeup_new,
 	TPPROTO(struct rq *rq, struct task_struct *p, int success),
 	TPARGS(rq, p, success),
 	TPFMT("task %s:%d",
 	      p->comm, p->pid, success?"succeeded":"failed"));
 
-DEFINE_TRACE_FMT(sched_switch,
+TRACE_FORMAT(sched_switch,
 	TPPROTO(struct rq *rq, struct task_struct *prev,
 		struct task_struct *next),
 	TPARGS(rq, prev, next),
 	TPFMT("task %s:%d ==> %s:%d",
 	      prev->comm, prev->pid, next->comm, next->pid));
 
-DEFINE_TRACE_FMT(sched_migrate_task,
+TRACE_FORMAT(sched_migrate_task,
 	TPPROTO(struct task_struct *p, int orig_cpu, int dest_cpu),
 	TPARGS(p, orig_cpu, dest_cpu),
 	TPFMT("task %s:%d from: %d  to: %d",
 	      p->comm, p->pid, orig_cpu, dest_cpu));
 
-DEFINE_TRACE_FMT(sched_process_free,
+TRACE_FORMAT(sched_process_free,
 	TPPROTO(struct task_struct *p),
 	TPARGS(p),
 	TPFMT("task %s:%d", p->comm, p->pid));
 
-DEFINE_TRACE_FMT(sched_process_exit,
+TRACE_FORMAT(sched_process_exit,
 	TPPROTO(struct task_struct *p),
 	TPARGS(p),
 	TPFMT("task %s:%d", p->comm, p->pid));
 
-DEFINE_TRACE_FMT(sched_process_wait,
+TRACE_FORMAT(sched_process_wait,
 	TPPROTO(struct pid *pid),
 	TPARGS(pid),
 	TPFMT("pid %d", pid));
 
-DEFINE_TRACE_FMT(sched_process_fork,
+TRACE_FORMAT(sched_process_fork,
 	TPPROTO(struct task_struct *parent, struct task_struct *child),
 	TPARGS(parent, child),
 	TPFMT("parent %s:%d  child %s:%d",
 	      parent->comm, parent->pid, child->comm, child->pid));
 
-DEFINE_TRACE_FMT(sched_signal_send,
+TRACE_FORMAT(sched_signal_send,
 	TPPROTO(int sig, struct task_struct *p),
 	TPARGS(sig, p),
 	TPFMT("sig: %d   task %s:%d", sig, p->comm, p->pid));

kernel/trace/trace_events.h

@@ -17,8 +17,8 @@ struct ftrace_event_call {
 #undef TPFMT
 #define TPFMT(fmt, args...)	fmt "\n", ##args
 
-#undef DEFINE_TRACE_FMT
-#define DEFINE_TRACE_FMT(call, proto, args, fmt)			\
+#undef TRACE_FORMAT
+#define TRACE_FORMAT(call, proto, args, fmt)				\
 static void ftrace_event_##call(proto)					\
 {									\
 	event_trace_printk(_RET_IP_, "(" #call ") " fmt);		\