linux-kernel - Re: [v2 1/4] coccinelle: api: extend memdup_user transformation with GFP

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Message-ID: <alpine.DEB.2.22.394.2007181529460.2538@hadrien>
Date:   Sat, 18 Jul 2020 15:29:58 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Denis Efremov <efremov@...ux.com>
cc:     Markus Elfring <Markus.Elfring@....de>,
        Coccinelle <cocci@...teme.lip6.fr>, linux-kernel@...r.kernel.org
Subject: Re: [v2 1/4] coccinelle: api: extend memdup_user transformation with
 GFP_USER



On Sat, 18 Jul 2020, Denis Efremov wrote:

> Hi,
>
> On 7/18/20 9:45 AM, Julia Lawall wrote:
> > This on is indeed a problem.  I think it was not detected in testing,
> > because in the current kernel the rule never applies.  But Denis, in
> >
> > -  to = \(kmalloc\|kzalloc\)
> >                 (size,\(GFP_KERNEL\|GFP_USER\|
> >                       \(GFP_KERNEL\|GFP_USER\)|__GFP_NOWARN\));
> >
> > you do indeed need to put - in front of the second and third lines as
> > well.
>
> Thanks, Markus, Julia. I will send v3. Julia, is it ok with you, if I will
> drop the last patch with "selfcheck" this time?

That would be perfect, thanks.

julia