netdev - Re: [PATCH net-next v2 4/7] net: packet: use skb->dev as storage for skb orig len instead of skb->cb[]

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Message-Id: <20150301.003143.1281961486875434872.davem@davemloft.net>
Date:	Sun, 01 Mar 2015 00:31:43 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eyal.birger@...il.com
Cc:	willemb@...gle.com, edumazet@...gle.com, shmulik.ladkani@...il.com,
	linux-bluetooth@...r.kernel.org, marcel@...tmann.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH net-next v2 4/7] net: packet: use skb->dev as storage
 for skb orig len instead of skb->cb[]

From: Eyal Birger <eyal.birger@...il.com>
Date: Sun, 1 Mar 2015 07:09:54 +0200

> Ok. Another suggestion I received was to delay the preparation of the full
> sockaddr_ll until it is needed, and store the skb original length in the first
> two fields (sll_protocol and sll_family) as they can be derived later on from
> the skb.
> 
> IMHO, It would still be somewhat of a hack though.
> 
> Would that approach be considered?

I think it's better than mangling skb->dev
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