linux-kernel - Re: [PATCH] x86, kprobes: Hide skip_singlestep forward declaration properly

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Date:	Thu, 20 Sep 2012 18:36:53 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Borislav Petkov <bp@...64.org>, Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>, X86-ML <x86@...nel.org>,
	Borislav Petkov <borislav.petkov@....com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH] x86, kprobes: Hide skip_singlestep forward declaration
 properly

(2012/09/20 18:25), Ingo Molnar wrote:
> 
> * Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> wrote:
> 
>> (2012/09/19 22:46), Borislav Petkov wrote:
>>> From: Borislav Petkov <borislav.petkov@....com>
>>>
>>> I get
>>>
>>> arch/x86/kernel/kprobes.c:544:23: warning: ‘skip_singlestep’ declared ‘static’ but never defined [-Wunused-function]
>>>
>>> on tip/auto-latest.
>>>
>>> Hide the forward declaration in the KPROBES_CAN_USE_FTRACE as it
>>> is done in its callsites.
>>
>> Thank you for reporting and fixing :)
> 
> Why is a forward declation needed, why isn't the function in the 
> proper spot in the file to begin with?

There is no reason, ftrace-related things can also be moved on top.
Borislav, could you move it?

Thanks,

-- 
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@...achi.com


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