netdev - Re: [PATCH 0/2] sctp: fix a problem with net

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Message-ID: <52E6597E.8040608@gmail.com>
Date:	Mon, 27 Jan 2014 21:05:02 +0800
From:	Wang Weidong <weidong1991.wang@...il.com>
To:	Neil Horman <nhorman@...driver.com>,
	Wang Weidong <wangweidong1@...wei.com>
CC:	davem@...emloft.net, vyasevich@...il.com, dborkman@...hat.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH 0/2] sctp: fix a problem with net_namespace

From: Wang Weidong <wangweidong1@...wei.com>

On 2014/1/27 19:49, Neil Horman wrote:
> On Mon, Jan 27, 2014 at 11:49:01AM +0800, Wang Weidong wrote:
>> fix a problem with net_namespace, and optimize
>> the sctp_sysctl_net_register.
>>
>> Wang Weidong (2):
>>    sctp: fix a missed .data initialization
>>    sctp: optimize the sctp_sysctl_net_register
>>
>>   net/sctp/sysctl.c | 17 ++++++++++-------
>>   1 file changed, 10 insertions(+), 7 deletions(-)
>>
>> --
>> 1.7.12
>>
>>
>>
> I don't see that either of these patches are needed.  In sctp_init_net, the
> sctp_hmac_alg pointer gets initalized before calling sctp_sysctl_net_register,
> and sctp_proc_do_hmac_alg is written to specifically expect NULL values, so this
> code may change behavior regarding default cookie selection.
>
> This was coded so that poniters to entires in the string table could be used,
> rather than needing to allocate or maintain character buffers.  That said, it
> does look like that for loop in sctp_sysctl_register_table might compute an odd
> offset when cloning the table.  I think the right fix for that is likely to just
> move the sysctl value initalization in sctp_init_net to below the sysctl
> register function.
>
> Neil
>

Thanks Neil,
I will try to refix it as you said tomorrow because I am not at the office.

Regards,
Wang

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