linux-kernel - Re: [PATCH 4/5] perf tools: Introduce perf_callchain

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Message-ID: <1411398771.1665.3.camel@leonhard>
Date:	Tue, 23 Sep 2014 00:12:51 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	Jiri Olsa <jolsa@...hat.com>, Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	David Ahern <dsahern@...il.com>,
	Milian Wolff <mail@...ianw.de>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/5] perf tools: Introduce perf_callchain_config()

2014-09-22 (월), 11:51 -0300, Arnaldo Carvalho de Melo:
> Em Mon, Sep 22, 2014 at 04:25:10PM +0200, Jiri Olsa escreveu:
> > On Sun, Sep 21, 2014 at 01:18:05AM +0900, Namhyung Kim wrote:
> > > +int perf_callchain_config(const char *var, const char *value)
> > > +{
> > > +	if (prefixcmp(var, "call-graph."))
> > > +		return 0;
> > > +	var += 11; /* strlen("call-graph.") == 11 */
>  
> > should we use sizeof("call-graph.") - 1 instead ?
> 
> Agreed, it should produce the same code and is more compact :-)

Will change.

Thanks,
Namhyung



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