linux-kernel - Re: [GIT PULL 00/15] perf/urgent fixes

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Date:	Wed, 06 Jun 2012 16:50:31 -0600
From:	David Ahern <dsahern@...il.com>
To:	Ingo Molnar <mingo@...nel.org>
CC:	Arnaldo Carvalho de Melo <acme@...radead.org>,
	linux-kernel@...r.kernel.org,
	Akihiro Nagai <akihiro.nagai.hw@...achi.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Anton Arapov <anton@...hat.com>,
	Avik Sil <avik.sil@...aro.org>,
	Borislav Petkov <borislav.petkov@....com>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...il.com>,
	Namhyung Kim <namhyung.kim@....com>,
	Oleg Nesterov <oleg@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Stephane Eranian <eranian@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Sunjin Yang <fan4326@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-perf-users@...r.kernel.org
Subject: Re: [GIT PULL 00/15] perf/urgent fixes

On 6/6/12 12:50 AM, Ingo Molnar wrote:
> Hm, I got this build failure:
>
> bench/mem-memcpy.c: In function ‘bench_mem_memcpy’:
> bench/mem-memcpy.c:193:2: error: implicit declaration of function ‘perf_atoll’ [-Werror=implicit-function-declaration]
> bench/mem-memcpy.c:193:2: error: nested extern declaration of ‘perf_atoll’ [-Werror=nested-externs]

I just created a new F17-x86_64 VM and Arnaldo's perf/urgent branch 
builds fine (which includes this patch).

>
> Which appears to be a result of:
>
> 6b7df4a0237a perf tool: Build fix, remove duplicate declarations
>
> Those declarations were not so unused on this fresh install of
> Fedora 17.

32-bit? 64-bit?

This would fix your compile problem, but I have no way of verifying 
since it builds fine for me.

diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 7155722..535b4b8 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -10,6 +10,7 @@
  #include "../util/util.h"
  #include "../util/parse-options.h"
  #include "../util/header.h"
+#include "../util/string.h"
  #include "bench.h"
  #include "mem-memcpy-arch.h"
--
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