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

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Message-ID: <20120920092540.GB3611@gmail.com>
Date:	Thu, 20 Sep 2012 11:25:40 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
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


* 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?

Thanks,

	Ingo
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