From 3afc9621f15701c557e60f61eba9242bac2771dd Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 2 May 2012 11:41:30 +0800
Subject: [PATCH] macvtap: zerocopy: fix offset calculation when building skb

This patch fixes the offset calculation when building skb:

- offset1 were used as skb data offset not vector offset
- reset offset to zero only when we advance to next vector

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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