linux-kernel - Re: [PATCH 4/4] (RFC) X86: add IPI tracepoints

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Message-ID: <20140721185459.54c81bd5@gandalf.local.home>
Date:	Mon, 21 Jul 2014 18:54:59 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Nicolas Pitre <nicolas.pitre@...aro.org>
Cc:	Ingo Molnar <mingo@...hat.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH 4/4] (RFC) X86: add IPI tracepoints

On Fri, 18 Jul 2014 16:59:50 -0400 (EDT)
Nicolas Pitre <nicolas.pitre@...aro.org> wrote:

> On Fri, 18 Jul 2014, Steven Rostedt wrote:
> 
> > On Fri, 18 Jul 2014 01:18:55 -0400
> > Nicolas Pitre <nicolas.pitre@...aro.org> wrote:
> > 
> >  
> > > diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
> > > index be8e1bde07..e154d176cf 100644
> > > --- a/arch/x86/kernel/smp.c
> > > +++ b/arch/x86/kernel/smp.c
> > > @@ -31,6 +31,12 @@
> > >  #include <asm/apic.h>
> > >  #include <asm/nmi.h>
> > >  #include <asm/trace/irq_vectors.h>
> > > +
> > > +#define CREATE_TRACE_POINTS
> > > +#undef TRACE_INCLUDE_PATH
> > > +#undef TRACE_INCLUDE_FILE
> > 
> > I'm curious to why you added the #undefs. I wouldn't think they were
> > needed.
> 
> They are needed because asm/trace/irq_vectors.h included prior that 
> point defines them for itself and that makes the inclusion of 
> trace/events/ipi.h fail.
> 

Bah, I tried to get rid of the need for those, but it seems that the
macro magic is getting a bit out of hand. I need a new macro magic
hat :-p

What you got here will have to do.


-- Steve
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