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Date:	Sat, 05 May 2012 07:39:21 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Alexander Duyck <alexander.h.duyck@...el.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	jeffrey.t.kirsher@...el.com
Subject: Re: [PATCH 3/3] skb: Add inline helper for getting the skb end
 offset from head

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>
> ---
> 
>  drivers/atm/ambassador.c             |    2 +-
>  drivers/atm/idt77252.c               |    2 +-
>  drivers/net/wimax/i2400m/usb-rx.c    |    2 +-
>  drivers/staging/octeon/ethernet-tx.c |    2 +-
>  include/linux/skbuff.h               |   12 +++++++++++-
>  net/core/skbuff.c                    |   12 ++++++------
>  6 files changed, 21 insertions(+), 11 deletions(-)

Acked-by: Eric Dumazet <edumazet@...gle.com>



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