Commit 1276f24e authored by Mike Rapoport's avatar Mike Rapoport Committed by David S. Miller

packet: use common code for virtio_net_hdr and skb GSO conversion

Replace open coded conversion between virtio_net_hdr to skb GSO info with
virtio_net_hdr_from_skb
Signed-off-by: default avatarMike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e858fae2
...@@ -1979,41 +1979,9 @@ static int __packet_rcv_vnet(const struct sk_buff *skb, ...@@ -1979,41 +1979,9 @@ static int __packet_rcv_vnet(const struct sk_buff *skb,
{ {
*vnet_hdr = (const struct virtio_net_hdr) { 0 }; *vnet_hdr = (const struct virtio_net_hdr) { 0 };
if (skb_is_gso(skb)) { if (virtio_net_hdr_from_skb(skb, vnet_hdr, vio_le()))
struct skb_shared_info *sinfo = skb_shinfo(skb);
/* This is a hint as to how much should be linear. */
vnet_hdr->hdr_len =
__cpu_to_virtio16(vio_le(), skb_headlen(skb));
vnet_hdr->gso_size =
__cpu_to_virtio16(vio_le(), sinfo->gso_size);
if (sinfo->gso_type & SKB_GSO_TCPV4)
vnet_hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4;
else if (sinfo->gso_type & SKB_GSO_TCPV6)
vnet_hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV6;
else if (sinfo->gso_type & SKB_GSO_UDP)
vnet_hdr->gso_type = VIRTIO_NET_HDR_GSO_UDP;
else if (sinfo->gso_type & SKB_GSO_FCOE)
return -EINVAL;
else
BUG(); BUG();
if (sinfo->gso_type & SKB_GSO_TCP_ECN)
vnet_hdr->gso_type |= VIRTIO_NET_HDR_GSO_ECN;
} else
vnet_hdr->gso_type = VIRTIO_NET_HDR_GSO_NONE;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
vnet_hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
vnet_hdr->csum_start = __cpu_to_virtio16(vio_le(),
skb_checksum_start_offset(skb));
vnet_hdr->csum_offset = __cpu_to_virtio16(vio_le(),
skb->csum_offset);
} else if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
vnet_hdr->flags = VIRTIO_NET_HDR_F_DATA_VALID;
} /* else everything is zero */
return 0; return 0;
} }
......
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