linux-kernel - Re: [PATCH] arch: tile: kernel: signal.c: Use explicitly type case "unsigned long *" for register copy

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Message-ID: <20141101202350.GS7996@ZenIV.linux.org.uk>
Date:	Sat, 1 Nov 2014 20:23:50 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Chen Gang <gang.chen.5i5j@...il.com>
Cc:	cmetcalf@...era.com, dwalter@...gle.com, richard@....at,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arch: tile: kernel: signal.c: Use explicitly type case
 "unsigned long *" for register copy

On Sat, Nov 01, 2014 at 08:49:45PM +0800, Chen Gang wrote:
> setup_sigcontext() wants to copy all kernel related registers to user
> space. So let it copy explicitly instead of copying by exceeding member
> array border. So let code more clearer and avoid warning.

Er...  Perhaps it would be better to avoid that shite completely and just
use __copy_to_user() instead of bothering with loops?
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