linux-kernel - Re: [PATCH -tip v5 12/18] ftrace/kprobes: Use NOKPROBE

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Date:	Mon, 9 Dec 2013 12:04:50 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	Ingo Molnar <mingo@...nel.org>, linux-arch@...r.kernel.org,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Sandeepa Prabhu <sandeepa.prabhu@...aro.org>,
	Frederic Weisbecker <fweisbec@...il.com>, x86@...nel.org,
	lkml <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>, systemtap@...rceware.org,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH -tip v5 12/18] ftrace/kprobes: Use NOKPROBE_SYMBOL macro
 in ftrace

On Mon, 09 Dec 2013 10:47:46 +0000
Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> wrote:


> --- a/kernel/trace/trace_probe.h
> +++ b/kernel/trace/trace_probe.h
> @@ -124,8 +124,8 @@ struct probe_arg {
>  	const struct fetch_type	*type;	/* Type of this argument */
>  };
>  
> -static inline __kprobes void call_fetch(struct fetch_param *fprm,
> -				 struct pt_regs *regs, void *dest)
> +static inline void call_fetch(struct fetch_param *fprm,
> +			      struct pt_regs *regs, void *dest)
>  {
>  	return fprm->fn(regs, fprm->data, dest);
>  }
> 

Is this OK to be probed? I've had cases where a header "static inline"
was not always inlined. Unless you have "__always_inline" this is not
guaranteed to be inlined.

As for the rest of the patch:

Acked-by: Steven Rostedt <rostedt@...dmis.org>

-- Steve

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