linux-kernel - Re: lustre/lnet/lnet/lib-move.c: memcpy with (struct iovec*)->iov_base, which is _

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Date:	Wed, 7 Jan 2015 11:32:59 +0000
From:	"Dilger, Andreas" <andreas.dilger@...el.com>
To:	Dan Carpenter <dan.carpenter@...cle.com>,
	Andrey Utkin <andrey.krieger.utkin@...il.com>,
	Greg KH <gregkh@...uxfoundation.org>
CC:	"Drokin, Oleg" <oleg.drokin@...el.com>,
	"HPDD-discuss@...1.01.org" <HPDD-discuss@...1.01.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	OSUOSL Drivers <devel@...verdev.osuosl.org>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: Re: lustre/lnet/lnet/lib-move.c: memcpy with (struct
 iovec*)->iov_base, which is __user

On 2015/01/07, 1:36 AM, "Dan Carpenter" <dan.carpenter@...cle.com> wrote:
> Didn't Al change these to kvec instead of iovec?  You have to look at
> the callers to figure out if it's actually a user space pointer or a
> kernel pointer.

A patch was sent by Al on Dec 2 to replace iovec with kvec, in a thread
titled "[PATCH] staging:lustre:lnet: Incorrect type in assignment".  Greg
replied on Dec 10 in another thread (also fixing this same warning) titled
"[PATCH] staging: lustre: Fix the warning messages about casting without
__user macro" that Al's patch was in the staging tree for 3.19-rc1.

Cheers, Andreas
-- 
Andreas Dilger

Lustre Software Architect
Intel High Performance Data Division


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