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: <CAHsH6Guk_wbXJptkodO+Y5A53UsvrQeeJsM+PXP-3LzA2zUB2Q@mail.gmail.com>
Date:	Sun, 1 Mar 2015 07:35:26 +0200
From:	Eyal Birger <eyal.birger@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	Willem de Bruijn <willemb@...gle.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Shmulik Ladkani <shmulik.ladkani@...il.com>,
	linux-bluetooth@...r.kernel.org,
	Marcel Holtmann <marcel@...tmann.org>,
	"netdev@...r.kernel.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[]

On Sun, Mar 1, 2015 at 7:31 AM, David Miller <davem@...emloft.net> wrote:
> 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

Ok. Will submit a v3.
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