linux-kernel - [tip:tracing/core] tracing/events: put TP_fast

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Message-ID: <tip-a9c1c3abe1160a5632e48c929b02b740556bf423@git.kernel.org>
Date:	Thu, 4 Jun 2009 12:04:16 GMT
From:	tip-bot for Li Zefan <lizf@...fujitsu.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	rostedt@...dmis.org, lizf@...fujitsu.com, tglx@...utronix.de
Subject: [tip:tracing/core] tracing/events: put TP_fast_assign into braces

Commit-ID:  a9c1c3abe1160a5632e48c929b02b740556bf423
Gitweb:     http://git.kernel.org/tip/a9c1c3abe1160a5632e48c929b02b740556bf423
Author:     Li Zefan <lizf@...fujitsu.com>
AuthorDate: Mon, 1 Jun 2009 15:35:13 +0800
Committer:  Steven Rostedt <rostedt@...dmis.org>
CommitDate: Mon, 1 Jun 2009 23:24:53 -0400

tracing/events: put TP_fast_assign into braces

Currently TP_fast_assign has a limitation that we can't define local
variables in it.

Here's one use case when we introduce __dynamic_array():

TP_fast_assign(
	type *p = __get_dynamic_array(item);

	foo(p);
	bar(p);
),

[ Impact: allow defining local variables in TP_fast_assign ]

Signed-off-by: Li Zefan <lizf@...fujitsu.com>
LKML-Reference: <4A2384B1.90100@...fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>


---
 include/trace/ftrace.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 9276ec4..ee92682 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -471,7 +471,7 @@ static void ftrace_raw_event_##call(proto)				\
 		return;							\
 	entry	= ring_buffer_event_data(event);			\
 									\
-	assign;								\
+	{ assign; }							\
 									\
 	if (!filter_current_check_discard(event_call, entry, event))	\
 		trace_nowake_buffer_unlock_commit(event, irq_flags, pc); \
--
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