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virtio-net: restore VIRTIO_HDR_F_DATA_VALID on receiving

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Commit 501db51139 ("virtio: don't set VIRTIO_NET_HDR_F_DATA_VALID on
xmit") in fact disables VIRTIO_HDR_F_DATA_VALID on receiving path too,
fixing this by adding a hint (has_data_valid) and set it only on the
receiving path.

Cc: Rolf Neugebauer <rolf.neugebauer@docker.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jason Wang
2017-01-20 14:32:42 +08:00
committed by David S. Miller
parent 69fed99baa
commit 6391a4481b
5 changed files with 10 additions and 6 deletions
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2
drivers/net/macvtap.c
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@@ -825,7 +825,7 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
return -EINVAL;
if (virtio_net_hdr_from_skb(skb, &vnet_hdr,
macvtap_is_little_endian(q)))
macvtap_is_little_endian(q), true))
BUG();
if (copy_to_iter(&vnet_hdr, sizeof(vnet_hdr), iter) !=