linux-kernel - Re: [PATCH 2/8] perf tools: Make __hpp__fmt() receive an additional len argument

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Message-ID: <20140811131738.GB3277@kernel.org>
Date:	Mon, 11 Aug 2014 10:17:38 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>, Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH 2/8] perf tools: Make __hpp__fmt() receive an additional
 len argument

Em Mon, Aug 11, 2014 at 05:05:33PM +0900, Namhyung Kim escreveu:
> Hi Arnaldo,
> 
> On Sat, 2 Aug 2014 10:30:26 -0300, Arnaldo Carvalho de Melo wrote:
> > Em Thu, Jul 31, 2014 at 02:47:36PM +0900, Namhyung Kim escreveu:
> >> So that it can properly handle alignment requirements later.  To do
> >> that, add percent_color_len_snprintf() fucntion to help coloring of
> >> overhead columns.
> >
> > Can you elaborate on this description? What is not possible to do before
> > this patch?
> 
> This patch is a preparation that moves hard-coded print width out of the
> format string so that it can be passed from external settings later.

Ok, please add this to the patch description?
 
> > Perhaps a formatted line before this patch and then the same line
> > formatted after the patch?
 
> The default behavior wasn't changed, it's only meaningful when user
> gives field width using -w option.  You can see the difference in the
> description 0/8.

- Arnaldo
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