linux-kernel - Re: [PATCH v5 2/4] arm64: split syscall_trace() into separate functions for enter/exit

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Message-ID: <20140416132716.GA1001@arm.com>
Date:	Wed, 16 Apr 2014 14:27:16 +0100
From:	Will Deacon <will.deacon@....com>
To:	AKASHI Takahiro <takahiro.akashi@...aro.org>
Cc:	"viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>,
	"eparis@...hat.com" <eparis@...hat.com>,
	"rgb@...hat.com" <rgb@...hat.com>,
	Catalin Marinas <Catalin.Marinas@....com>,
	"dsaxena@...aro.org" <dsaxena@...aro.org>,
	"arndb@...db.de" <arndb@...db.de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-audit@...hat.com" <linux-audit@...hat.com>
Subject: Re: [PATCH v5 2/4] arm64: split syscall_trace() into separate
 functions for enter/exit

Hi Akashi,

On Sat, Mar 15, 2014 at 05:39:06AM +0000, AKASHI Takahiro wrote:
> As done in arm, this change makes it easy to confirm we invoke syscall
> related hooks, including syscall tracepoint, audit and seccomp which would
> be implemented later, in correct order. That is, undoing operations in the
> opposite order on exit that they were done on entry.
> 
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@...aro.org>

[...]

> +static void tracehook_report_syscall(struct pt_regs *regs,
> +				     enum ptrace_syscall_dir dir)
>  {
> +	int scrach;

s/scrach/scratch/

Although, I'd rather have a variable with a more meaningful name. How about
regno?

With that,

  Acked-by: Will Deacon <will.deacon@....com>

Cheers,

Will
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