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From: Simon Horman <horms@xxxxxxxxxxxx>
Date: Wed, 18 Aug 2010 09:21:49 +0900
> [ CCing netdev for comment ]
>
> On Tue, Aug 17, 2010 at 12:25:56PM +0300, Julian Anastasov wrote:
...
>> May be ip_vs_checksum_complete() is not needed here?
>> Also, skb->csum is not valid for every ip_summed value.
>> May be we need to apply CHECKSUM_PARTIAL kind of setup for the IPv6.
>> Such example is net/ipv6/udp.c:udp6_ufo_send_check().
>> Later dev_queue_xmit() and skb_checksum_help() should take care
>> for the next steps. Something like this can be tested:
>>
>> icmph->icmp6_cksum = csum_ipv6_magic(&iph->saddr,
>> &iph->daddr,
>> skb->len - icmp_offset, IPPROTO_ICMPV6,
>> 0);
>> skb->csum_start = skb_network_header(skb) - skb->head +
>> icmp_offset;
>> skb->csum_offset = offsetof(struct icmp6hdr, icmp6_cksum);
>> skb->ip_summed = CHECKSUM_PARTIAL;
>>
Yes, using CHECKSUM_PARTIAL unconditionally would work.
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