linux-kernel - [tip:tracing/core] tracing: Have __dynamic

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Message-ID: <tip-809826a389040e0ad9d646b587bccc0e34691afd@git.kernel.org>
Date:	Wed, 13 Jan 2010 10:21:33 GMT
From:	tip-bot for Lai Jiangshan <laijs@...fujitsu.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	rostedt@...dmis.org, tglx@...utronix.de, laijs@...fujitsu.com
Subject: [tip:tracing/core] tracing: Have __dynamic_array() define a field

Commit-ID:  809826a389040e0ad9d646b587bccc0e34691afd
Gitweb:     http://git.kernel.org/tip/809826a389040e0ad9d646b587bccc0e34691afd
Author:     Lai Jiangshan <laijs@...fujitsu.com>
AuthorDate: Tue, 15 Dec 2009 15:39:34 +0800
Committer:  Steven Rostedt <rostedt@...dmis.org>
CommitDate: Wed, 6 Jan 2010 11:30:02 -0500

tracing: Have __dynamic_array() define a field

This is part of a patch set that removes the show_format method
in the ftrace event macros.

This patch set requires that all fields are added to the
ftrace_event_call->fields. This patch changes __dynamic_array()
to call trace_define_field() to include fields that use __dynamic_array().

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
LKML-Reference: <4B273D36.8090100@...fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
---
 kernel/trace/trace_export.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index d4fa5dc..9978a4f 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -175,7 +175,12 @@ ftrace_format_##name(struct ftrace_event_call *unused,			\
 		return ret;
 
 #undef __dynamic_array
-#define __dynamic_array(type, item)
+#define __dynamic_array(type, item)					\
+	ret = trace_define_field(event_call, #type, #item,		\
+				 offsetof(typeof(field), item),		\
+				 0, is_signed_type(type), FILTER_OTHER);\
+	if (ret)							\
+		return ret;
 
 #undef FTRACE_ENTRY
 #define FTRACE_ENTRY(name, struct_name, id, tstruct, print)		\
--
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