From: Yang Hongyang <yanghy@cn.fujitsu.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: netdev@vger.kernel.org, davem@davemloft.net
Subject: Re: [PATCH]IPv6:remove duplicate check of optlen when setsockopt with IPV6_PKTINFO option
Date: Wed, 14 Jan 2009 11:54:38 +0800 [thread overview]
Message-ID: <496D61FE.7080500@cn.fujitsu.com> (raw)
In-Reply-To: <20090114034711.GA8361@gondor.apana.org.au>
Herbert Xu wrote:
> Yang Hongyang <yanghy@cn.fujitsu.com> wrote:
>> Actually the condition (optlen == 0) is included in (optlen < sizeof(struct in6_pktinfo)),
>> so we do not need to check it separately.
>
> You don't need to check optval == NULL either since that's the
> job of copy_from_user.
If optval==NULL, what we should return?EINVAL or EFAULT?
If it is EINVAL,then we should check it .otherwise it's the job of
copy_from_user
>
> Cheers,
--
Regards
Yang Hongyang
next prev parent reply other threads:[~2009-01-14 3:54 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 [this message]
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
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