linux-kernel - Re: [PATCH 2/2] ftrace: Output REC->var instead of _

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Date:	Wed, 8 Apr 2009 14:06:27 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Zhaolei <zhaolei@...fujitsu.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ftrace: Output REC->var instead of __entry->var
	for trace format


* Zhaolei <zhaolei@...fujitsu.com> wrote:

> print fmt: "irq=%d return=%s", __entry->irq, __entry->ret ? \"handled\" : \"unhandled\"
> 
> "__entry" should be convert to "REC" by __stringify() macro.
> 
> Signed-off-by: Zhao Lei <zhaolei@...fujitsu.com>
> ---
>  kernel/trace/trace_events_stage_2.h |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)

good fix, but it is causing build trouble when applied to latest 
tip/master:

 include/trace/sched_event_types.h:257:1: error: macro "__stringify" 
 passed 3 arguments, but takes just 1

see: http://people.redhat.com/mingo/tip.git/README

	Ingo
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