linux-kernel - Re: [PATCH] tools: perf: consistently use PRIu64 for printing u64 values

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Message-ID: <20150423134541.GC14773@redhat.com>
Date:	Thu, 23 Apr 2015 10:45:41 -0300
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Will Deacon <will.deacon@....com>
Cc:	linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
	David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...hat.com>,
	Joonsoo Kim <js1304@...il.com>,
	Minchan Kim <minchan@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
Subject: Re: [PATCH] tools: perf: consistently use PRIu64 for printing u64
 values

Em Thu, Apr 23, 2015 at 02:40:37PM +0100, Will Deacon escreveu:
> Building the perf tool for 32-bit ARM results in the following build
> error due to a combination of an incorrect conversion specifier and
> compiling with -Werror:
> 
>   builtin-kmem.c: In function ‘print_page_summary’:
>   builtin-kmem.c:644:9: error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘u64’ [-Werror=format=]
>            nr_alloc_freed, (total_alloc_freed_bytes) / 1024);
>            ^
>   builtin-kmem.c:647:9: error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘u64’ [-Werror=format=]
>            (total_page_alloc_bytes - total_alloc_freed_bytes) / 1024);
>            ^
>   cc1: all warnings being treated as errors
> 
> This patch fixes the problem by consistently using PRIu64 for printing
> out u64 values.

Thanks, applied to perf/urgent.

- Arnaldo
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