linux-kernel - Re: [PATCH] tracing: fix TRACE_EVENT power tracepoint creation

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Message-ID: <1288270424.18238.211.camel@gandalf.stny.rr.com>
Date:	Thu, 28 Oct 2010 08:53:44 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tracing: fix TRACE_EVENT power tracepoint creation

On Thu, 2010-10-28 at 07:03 -0400, Mathieu Desnoyers wrote:

> Given that trace/power.h is inluded in more than one .c file, generating
> DEFINE_TRACE() when CREATE_TRACE_POINTS is not set does not work. So what
> alternative do you suggest ?

Right, DEFINE_TRACE should only be set when CREATE_TRACE_POINTS is set,
and that is only set in the C file that the DEFINE_TRACE is to be
defined.

In fact, I don't even see what bug you are trying to fix?

The file include/trace/define_trace.h converts all the TRACE_EVENTS()
into DEFINE_TRACE() when CREATE_TRACE_POINTS is set. No other C file
that includes power.h should have CREATE_TRACE_POINTS set. I guess if it
did, the CONFIG_EVENT_TRACING would break too.

It should just work.

-- Steve

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