From a6d36d5689b1806a3365c909192e9f03a43a632b Mon Sep 17 00:00:00 2001
From: Ben Menchaca <ben@bigfootnetworks.com>
Date: Wed, 24 Mar 2010 05:05:02 +0000
Subject: [PATCH] gianfar: fix undo of reserve()

Fix undo of reserve() before RX recycle

gfar_new_skb reserve()s space in the SKB to align it.  If an error occurs,
and the skb needs to be returned to the RX recycle queue, the current code
attempts to reset head, but did not reset tail.  This patch remembers the
alignment amount, and reverses the reserve() when needed.

Signed-off-by: Ben Menchaca <ben@bigfootnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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