netdev - Re: [PATCH net] netpoll: fix rx_hook() interface by passing the skb

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Date:	Wed, 23 Oct 2013 16:16:03 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	antonio@...hcoding.com
Cc:	David.Laight@...LAB.COM, netdev@...r.kernel.org
Subject: Re: [PATCH net] netpoll: fix rx_hook() interface by passing the skb

From: Antonio Quartulli <antonio@...hcoding.com>
Date: Wed, 23 Oct 2013 14:44:01 +0200

> On Wed, Oct 23, 2013 at 12:18:32PM +0100, David Laight wrote:
>> > My idea is to use the following API:
>> > 
>> > rx_skb_hook(struct netpoll *np, int source, struct sk_buff *skb, int len);
>> > 
>> > Any suggestion or objection?
>> 
>> Don't you need to pass the offset of the udp data?
> 
> Yes, you are right. I just forgot it. Therefore we have:
> 
> rx_skb_hook(struct netpoll *np, int source, struct sk_buff *skb, int offset,
> 	    int len);
> 
> where offset is going to be = (udp_hdr + 1) - skb->data
> and len = skb->len - offset

This looks good to me.
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