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authorMike Rapoport <rppt@linux.vnet.ibm.com>2016-06-08 16:09:22 +0300
committerDavid S. Miller <davem@davemloft.net>2016-06-10 23:03:56 -0700
commit1276f24eeef207e5572649d069ba1b531b2e2c3a (patch)
treea5ff31fcdaf90aeef679b5ca193aa8c84d25f428
parente858fae2b0b8f41f0bed2cdffde25e7c97da38a7 (diff)
downloadlinux-1276f24eeef207e5572649d069ba1b531b2e2c3a.tar.bz2
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: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/packet/af_packet.c36
1 files changed, 2 insertions, 34 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 9bff6ef16fa7..d1f3b9e977e5 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1979,40 +1979,8 @@ static int __packet_rcv_vnet(const struct sk_buff *skb,
{
*vnet_hdr = (const struct virtio_net_hdr) { 0 };
- if (skb_is_gso(skb)) {
- 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();
-
- 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 */
+ if (virtio_net_hdr_from_skb(skb, vnet_hdr, vio_le()))
+ BUG();
return 0;
}