linux-kernel - Re: [PATCH 2/3] flex_arrays: allow zero length flex arrays

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Message-Id: <20110426115713.d9a5c1cd.akpm@linux-foundation.org>
Date:	Tue, 26 Apr 2011 11:57:13 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Eric Paris <eparis@...hat.com>
Cc:	dave@...ux.vnet.ibm.com, steffen.klassert@...unet.com,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, selinux@...ho.nsa.gov,
	sds@...ho.nsa.gov
Subject: Re: [PATCH 2/3] flex_arrays: allow zero length flex arrays

On Mon, 25 Apr 2011 21:45:37 -0400
Eric Paris <eparis@...hat.com> wrote:

> Just like kmalloc will allow one to allocate a 0 length segment of memory
> flex arrays should do the same thing.  It should bomb if you try to use
> something, but it should at least allow the allocation.

Well I suppose that's vaguely sensible, but it adds additional code for
no apparent benefit.

IOW: why?
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