linux-kernel - Re: [PATCH] perf: Fix argument of perf_arch_fetch_caller

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Date:	Wed, 23 Jun 2010 05:08:12 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>,
	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, Paul Mackerras <paulus@...ba.org>,
	David Miller <davem@...emloft.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [PATCH] perf: Fix argument of perf_arch_fetch_caller_regs

On Wed, Jun 23, 2010 at 09:17:53AM +0900, Nobuhiro Iwamatsu wrote:
> "struct regs" was set to argument of perf_arch_fetch_caller_regs.
> "struct pt_regs" is correct.
> 
> Cc: Frederic Weisbecker <fweisbec@...il.com>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: David Miller <davem@...emloft.net>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>



Acked-by: Frederic Weisbecker <fweisbec@...il.com>

This may fix CONFIG_PERF_EVENTS=y with archs that don't implement
perf_arch_fetch_caller_regs, namely ARM, alpha, frv, parisc, s390 and sh.

Ingo, can you please queue this for .36? (it only fixes perf/core)

Thanks.




> ---
>  include/linux/perf_event.h |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
> index 9073bde..b65736d 100644
> --- a/include/linux/perf_event.h
> +++ b/include/linux/perf_event.h
> @@ -934,7 +934,7 @@ extern void __perf_sw_event(u32, u64, int, struct
> pt_regs *, u64);
> 
>  #ifndef perf_arch_fetch_caller_regs
>  static inline void
> -perf_arch_fetch_caller_regs(struct regs *regs, unsigned long ip) { }
> +perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip) { }
>  #endif
> 
>  /*
> -- 
> 1.7.1

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