netdev - Re: [PATCH]IPv6:remove duplicate check of optlen when setsockopt with IPV6

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Message-ID: <20090115054856.GA30523@gondor.apana.org.au>
Date:	Thu, 15 Jan 2009 16:48:56 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	yanghy@...fujitsu.com, netdev@...r.kernel.org
Subject: Re: [PATCH]IPv6:remove duplicate check of optlen when setsockopt
	with IPV6_PKTINFO option

On Wed, Jan 14, 2009 at 09:45:21PM -0800, David Miller wrote:
>
> I agree with Herbert, but of course we have to adhere to cases
> where APIs actually define a user NULL pointer to have a specific
> meaning.

Absolutely.  Although AFAIK the relevant RFCs here only use the
notion of a zero option length for such purposes rather than
NULL pointers (presumably because the meaning of NULL pointers
are context dependent).

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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