linux-kernel - Re: [PATCH 1/1] staging: lustre/lustre/llite: get rid of incorrect type warning

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Date:	Wed, 10 Jun 2015 17:48:17 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Tolga Ceylan <tolga.ceylan@...il.com>
Cc:	Oleg Drokin <oleg.drokin@...el.com>,
	Andreas Dilger <andreas.dilger@...el.com>,
	Julia Lawall <Julia.Lawall@...6.fr>,
	Greg Donald <gdonald@...il.com>,
	aybuke ozdemir <aybuke.147@...il.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Tina Johnson <tinajohnson.1234@...il.com>,
	Joe Perches <joe@...ches.com>, HPDD-discuss@...ts.01.org,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] staging: lustre/lustre/llite: get rid of incorrect
 type warning

On Mon, Jun 08, 2015 at 04:01:57PM -0700, Tolga Ceylan wrote:
> In dir.c and llite_lib.c, sparse reports multiple warnings messages
> due to different address spaces. This patch resolves these warnings
> by adding the tag __user for username addresses.
> 
> Signed-off-by: Tolga Ceylan <tolga.ceylan@...il.com>

Are you sure all of these are correct?  The kernel/user api for lustre
is a complex beast, and just casting away the pointer types isn't
usually the proper thing to do in order to resolve the issues here.

thanks,

greg k-h
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