linux-kernel - Re: [PATCH 2/4] ARM: add IPI tracepoints

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Message-ID: <20140719162810.02285fc8@gandalf.local.home>
Date:	Sat, 19 Jul 2014 16:28:10 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:	Nicolas Pitre <nicolas.pitre@...aro.org>,
	"linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/4] ARM: add IPI tracepoints

On Sat, 19 Jul 2014 21:10:37 +0200
Ard Biesheuvel <ard.biesheuvel@...aro.org> wrote:

> On 18 July 2014 23:22, Steven Rostedt <rostedt@...dmis.org> wrote:
> > On Fri, 18 Jul 2014 16:55:42 -0400 (EDT)
> > Nicolas Pitre <nicolas.pitre@...aro.org> wrote:
> >
> >>
> >> Here's the patch I have at the head of the series now, with the above
> >> ugliness changed to an unconditional __tracepoint_string attribute.
> >>
> >
> > I was thinking of something like this. Feel free to add this to your
> > series.
> >
> > -- Steve
> >
> 
> Nico,
> 
> If this patch addresses the issue where 3 RCU related tracepoint
> strings turn up /after/ _edata on !CONFIG_TRACING, there is already a
> patch queued up here
> 
> http://marc.info/?l=linux-kernel&m=140518452623148&w=2
> 
> As far as In know, these were the only occurrences using a __used
> modifier, which is why they weren't dropped by the compiler in the
> !CONFIG_TRACING case.
> 

Ard,

Similar but different problem. Nicolas's problem was with new use cases
for tracepoint_string. My patch fixes the issue for the general case.

-- Steve


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