netdev - Re: [PATCH 3/3] skb: Add inline helper for getting the skb end offset from head

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Message-Id: <20120506.131355.715946277868436740.davem@davemloft.net>
Date:	Sun, 06 May 2012 13:13:55 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	alexander.h.duyck@...el.com, netdev@...r.kernel.org,
	jeffrey.t.kirsher@...el.com
Subject: Re: [PATCH 3/3] skb: Add inline helper for getting the skb end
 offset from head

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sat, 05 May 2012 07:39:21 +0200

> On Fri, 2012-05-04 at 17:26 -0700, Alexander Duyck wrote:
>> With the recent changes for how we compute the skb truesize it occurs to me
>> we are probably going to have a lot of calls to skb_end_pointer -
>> skb->head.  Instead of running all over the place doing that it would make
>> more sense to just make it a separate inline skb_end_offset(skb) that way
>> we can return the correct value without having gcc having to do all the
>> optimization to cancel out skb->head - skb->head.
>> 
>> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
 ...
> Acked-by: Eric Dumazet <edumazet@...gle.com>

Applied.
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