From: Eric Dumazet <eric.dumazet@xxxxxxxxx>
Date: Fri, 15 Jan 2016 09:18:44 -0800
> On Fri, 2016-01-15 at 08:43 -0800, Tom Herbert wrote:
>
>> Probably should have a utility function do this. Maybe something like
>> update_hdr_field(skb, old, new)? Could return new value so above could
>> just be:
>>
>> ipv6h->payload_len = update_hdr_field(skb, ipv6h->payload_len,
>> htons(ntohs(oldlen) + ret);
>
> Well, oldlen would still need to be ipv6h->payload_len
>
> Not sure a helper will be nice for a stable submission.
>
> Probably better for net-next ?
Agreed. We already have those csum_replace{2,4}() helpers in net/checksum.h
which we could augment with ones that can handle length changes too.
--
To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
