netdev - Re: [PATCH] net/usbnet: reserve headroom on rx skbs

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Message-Id: <20120316.020210.382790286150729745.davem@davemloft.net>
Date:	Fri, 16 Mar 2012 02:02:10 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	oneukum@...e.de
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org,
	gregkh@...uxfoundation.org
Subject: Re: [PATCH] net/usbnet: reserve headroom on rx skbs

From: Oliver Neukum <oneukum@...e.de>
Date: Thu, 15 Mar 2012 18:01:03 +0100

> Am Mittwoch, 14. März 2012, 17:56:25 schrieb Eric Dumazet:
>> network drivers should reserve some headroom on incoming skbs so that we
>> dont need expensive reallocations, eg forwarding packets in tunnels.
>> 
>> This NET_SKB_PAD padding is done in various helpers, like
>> __netdev_alloc_skb_ip_align() in this patch, combining NET_SKB_PAD and
>> NET_IP_ALIGN magic.
>> 
>> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
>> Cc: Oliver Neukum <oneukum@...e.de>
>> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Acked-by: Oliver Neukum <oneukum@...e.de>

Applied.
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