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Date:	Thu, 08 May 2008 17:15:04 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	allan.stephens@...driver.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH net-2.6] [TIPC]: Increase buffer headroom to support
 gianfar

From: Allan Stephens <allan.stephens@...driver.com>
Date: Thu,  8 May 2008 20:07:55 -0400

> This patch increases the headroom TIPC reserves in each sk_buff
> to 24 bytes, due to the 8 byte FCB used by gianfar.
> 
> Signed-off-by: Allan Stephens <allan.stephens@...driver.com>

This is not how this is computed.

Please use LL_RESERVED_SPACE() like every other packet output
path does.  Or, at a minimum, reserve LL_MAX_HEADER bytes.
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