linux-kernel - Re: [PATCH perf/core v4 04/19] perf: Add lsdir to read a directory

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Date:	Tue, 26 Apr 2016 23:52:29 +0900
From:	Masami Hiramatsu <mhiramat@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Hemant Kumar <hemant@...ux.vnet.ibm.com>,
	Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>
Subject: Re: [PATCH perf/core v4 04/19] perf: Add lsdir to read a directory

On Tue, 26 Apr 2016 11:07:42 -0300
Arnaldo Carvalho de Melo <acme@...nel.org> wrote:

> Em Tue, Apr 26, 2016 at 10:40:20AM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Tue, Apr 26, 2016 at 06:02:42PM +0900, Masami Hiramatsu escreveu:
> > > From: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
> > > 
> > > As a utility function, add lsdir() which reads given
> > > directory and store entry name into a strlist.
> > > lsdir accepts a filter function so that user can
> > > filter out unneeded entries.
> > > 
> > > Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
> > > Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
> > 
> > Thanks, applied.
> 
> Had to fix it to build on some distros, like ubuntu 12.04:
> 
> alldeps-ubuntu-12.04: FAIL
> util/util.h:228:38: error: declaration of 'dirname' shadows a global declaration [-Werror=shadow]
> cc1: all warnings being treated as errors
> mv: cannot stat `/tmp/build/perf/util/.db-export.o.tmp': No such file or directory
> make[3]: *** [/tmp/build/perf/util/db-export.o] Error 1
> make[3]: *** Waiting for unfinished jobs....
> make[2]: *** [util] Error 2
> make[2]: *** [ui] Error 2
> make[1]: *** [/tmp/build/perf/libperf-in.o] Error 
> make: *** [install-bin] Error 2
> 

Hmm, I didn't know that the dummy argument can shadow a global declaration.
I might be better to rename "dirname" to "dir_name".

Thank you,

-- 
Masami Hiramatsu <mhiramat@...nel.org>