From: Jason Wang <jasowang@redhat.com>
Date: Thu, 20 Nov 2014 08:31:05 +0000 (+0800)
Subject: macvtap: advance iov iterator when needed in macvtap_put_user()
X-Git-Tag: omap-for-v3.19/fixes-rc1~125^2~145
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7cc76f51508219a74dca835745e4f84393820017;p=pandora-kernel.git

macvtap: advance iov iterator when needed in macvtap_put_user()

When mergeable buffer is used, vnet_hdr_sz is greater than sizeof struct
virtio_net_hdr. So we need advance the iov iterators in this case.

Fixes 6c36d2e26cda1ad3e2c4b90dd843825fc62fe5b4 ("macvtap: Use iovec iterators")
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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