From: Yang Hongyang <yanghy@cn.fujitsu.com>
To: David Miller <davem@davemloft.net>
Cc: herbert@gondor.apana.org.au, netdev@vger.kernel.org
Subject: Re: [PATCH]IPv6:remove duplicate check of optlen when setsockopt with IPV6_PKTINFO option
Date: Thu, 15 Jan 2009 18:07:49 +0800 [thread overview]
Message-ID: <496F0AF5.5060804@cn.fujitsu.com> (raw)
In-Reply-To: <20090114.214521.132298096.davem@davemloft.net>
David Miller wrote:
> From: Herbert Xu <herbert@gondor.apana.org.au>
> Date: Thu, 15 Jan 2009 16:37:02 +1100
>
>> On Thu, Jan 15, 2009 at 01:34:03PM +0800, Yang Hongyang wrote:
>>> Dave,there are some of the code elsewhere return EFAULT when
>>> optval=NULL,I will post a patch to fix them:)
>> I disagree. The concept of a user-space NULL pointer is different
>> to that of a kernel-space NULL pointer, so the kernel should not
>> be treating a user-space NULL pointer differently than any other
>> pointer.
>
> 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.
>
>
Agreed.Seems that Patch v2 is correct according to the discussion.^_^
--
Regards
Yang Hongyang
prev parent reply other threads:[~2009-01-15 10:07 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-13 7:35 [PATCH]IPv6:remove duplicate check of optlen when setsockopt with IPV6_PKTINFO option Yang Hongyang
2009-01-14 3:47 ` Herbert Xu
2009-01-14 3:54 ` Yang Hongyang
2009-01-14 4:07 ` Wei Yongjun
2009-01-14 5:27 ` Yang Hongyang
2009-01-14 8:26 ` Shan Wei
2009-01-15 0:50 ` [PATCHv2]IPv6:remove duplicate check " Yang Hongyang
2009-01-14 4:48 ` [PATCH]IPv6:remove duplicate check of optlen " Herbert Xu
2009-01-15 5:02 ` David Miller
2009-01-15 5:04 ` Herbert Xu
2009-01-15 5:06 ` Herbert Xu
2009-01-15 5:25 ` Yang Hongyang
2009-01-15 5:43 ` David Miller
2009-01-15 5:34 ` Yang Hongyang
2009-01-15 5:37 ` Herbert Xu
2009-01-15 5:45 ` David Miller
2009-01-15 5:48 ` Herbert Xu
2009-01-15 10:07 ` Yang Hongyang [this message]
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