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Message-ID: <505ADB6B.3070706@hitachi.com>
Date: Thu, 20 Sep 2012 18:01:31 +0900
From: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To: Borislav Petkov <bp@...64.org>, Ingo Molnar <mingo@...e.hu>
Cc: 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
(2012/09/19 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 :)
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Ingo, please pull this.
Thank you,
>
> Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Signed-off-by: Borislav Petkov <borislav.petkov@....com>
> ---
> arch/x86/kernel/kprobes.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
> index b7c2a85d1926..ac4188368fdf 100644
> --- a/arch/x86/kernel/kprobes.c
> +++ b/arch/x86/kernel/kprobes.c
> @@ -541,8 +541,11 @@ reenter_kprobe(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb
> return 1;
> }
>
> +#ifdef KPROBES_CAN_USE_FTRACE
> static void __kprobes skip_singlestep(struct kprobe *p, struct pt_regs *regs,
> struct kprobe_ctlblk *kcb);
> +#endif
> +
> /*
> * Interrupts are disabled on entry as trap3 is an interrupt gate and they
> * remain disabled throughout this function.
>
--
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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