linux-kernel - Re: [PATCH] Coccinelle : Script to detect cast after memory allocation

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Date:	Sat, 14 Jun 2014 09:06:01 -0700
From:	Joe Perches <joe@...ches.com>
To:	Himangi Saraogi <himangi774@...il.com>
Cc:	Julia Lawall <Julia.Lawall@...6.fr>,
	Gilles Muller <Gilles.Muller@...6.fr>,
	Nicolas Palix <nicolas.palix@...g.fr>,
	Michal Marek <mmarek@...e.cz>, cocci@...teme.lip6.fr,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Coccinelle : Script to detect cast after memory
 allocation

On Sat, 2014-06-14 at 21:15 +0530, Himangi Saraogi wrote:
> This script detects cases of use of cast for the value returned by
> kmalloc, kzalloc, kcalloc, kmem_cache_alloc, kmem_cache_zalloc,
> kmem_cache_alloc_node, kmalloc_node and kzalloc_node and removes
> the cast as it is not useful. This Coccinelle script replaces
> drop_kmalloc_cast.cocci as it removes the casting in more limited
> cases of kmalloc, kzalloc and kcalloc.

Perhaps make this more generic for any void *?

Something like:

@@
void *t;
type other;
@@

-       (other *)t
+       t


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