linux-kernel - Re: [lustre-devel] [PATCH] staging: lustre: Fix a spatch warning due to an assignment from kernel to user space

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Message-ID: <20161207192237.GP8176@mwanda>
Date:   Wed, 7 Dec 2016 22:22:37 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Quentin Lambert <lambert.quentin@...il.com>
Cc:     devel@...verdev.osuosl.org,
        Andreas Dilger <andreas.dilger@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        Oleg Drokin <oleg.drokin@...el.com>,
        lustre-devel@...ts.lustre.org
Subject: Re: [lustre-devel] [PATCH] staging: lustre: Fix a spatch warning due
 to an assignment from kernel to user space

On Wed, Dec 07, 2016 at 04:42:30PM +0100, Quentin Lambert wrote:
> 
> 
> On 12/07/2016 04:33 PM, Dan Carpenter wrote:
> >Lustre is kind of a mess with regards to keeping user and kernel
> >pointers separate.  It's not going to be easy to fix.
> Fair enough.
> I am trying to make a contribution to drivers/staging using sparse.
> With that in mind, do you still fill I should keep clear of lustre?
> I feel that actually doing the work properly could be a meaningful
> learning experience.

It's just that you're the fifth person to look at lustre __user
annotations and it doesn't end well.  You need to be a lustre expert
who can test things.

But for other lustre things, feel free.

regards,
dan carpenter