linux-kernel - Re: [RFC PATCH net-next 3/4] veth: backup classid befor switch net

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Message-ID: <52CA11FE.1090608@huawei.com>
Date:	Mon, 6 Jan 2014 10:16:30 +0800
From:	Libo Chen <clbchenlibo.chen@...wei.com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	David Miller <davem@...emloft.net>
CC:	<edumazet@...gle.com>, <kaber@...sh.net>, <peterz@...radead.org>,
	<honkiko@...il.com>, <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, <cgroups@...r.kernel.org>,
	<containers@...ts.linux-foundation.org>, <jhs@...atatu.com>,
	Li Zefan <lizefan@...wei.com>,
	Serge Hallyn <serge.hallyn@...ntu.com>
Subject: Re: [RFC PATCH net-next 3/4] veth: backup classid befor switch net_ns

On 2014/1/3 18:45, Sergei Shtylyov wrote:
> Hello.
> 
> On 03-01-2014 7:11, Libo Chen wrote:
> 
>> dev_forward_skb will clear skb->sk, so we need save classid
>> before that, otherwise the skb can not be under control by
>> net_cls.
> 
>> Signed-off-by: Libo Chen <clbchenlibo.chen@...wei.com>
>> ---
>>   drivers/net/veth.c | 7 +++++++
>>   1 file changed, 7 insertions(+)
> 
>> diff --git a/drivers/net/veth.c b/drivers/net/veth.c
>> index 2ec2041..ce43a2d 100644
>> --- a/drivers/net/veth.c
>> +++ b/drivers/net/veth.c
> [...]
>> @@ -123,6 +124,12 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
>>           rcv->features & NETIF_F_RXCSUM)
>>           skb->ip_summed = CHECKSUM_UNNECESSARY;
>>
>> +    /**
> 
>    Why you're using kernel-doc style comments out of place? The format of multi-line comments  in the networking code is this:
> 
> /* bla
>  * bla
>  */

thank you

Libo

> 
>> +     * dev_forward_sbk will clear skb->sk, so save
>> +     * skb->sk->sk_classid for Qos
>> +     */
>> +    bk_cls_classid(skb);
>> +
> 
> WBR, Sergei
> 
> 
> 
> .
> 


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