@@ -822,7 +822,7 @@ 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) !=
@@ -1381,7 +1381,7 @@ static ssize_t tun_put_user(struct tun_struct *tun,
return -EINVAL;
if (virtio_net_hdr_from_skb(skb, &gso,
- tun_is_little_endian(tun))) {
+ tun_is_little_endian(tun), true)) {
struct skb_shared_info *sinfo = skb_shinfo(skb);
pr_err("unexpected GSO type: "
"0x%x, gso_size %d, hdr_len %d\n",
@@ -839,7 +839,7 @@ static int xmit_skb(struct send_queue *sq, struct sk_buff *skb)
hdr = skb_vnet_hdr(skb);
if (virtio_net_hdr_from_skb(skb, &hdr->hdr,
- virtio_is_little_endian(vi->vdev)))
+ virtio_is_little_endian(vi->vdev), false))
BUG();
if (vi->mergeable_rx_bufs)
@@ -56,7 +56,8 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb,
static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb,
struct virtio_net_hdr *hdr,
- bool little_endian)
+ bool little_endian,
+ bool has_data_valid)
{
memset(hdr, 0, sizeof(*hdr));
@@ -91,6 +92,9 @@ static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb,
skb_checksum_start_offset(skb));
hdr->csum_offset = __cpu_to_virtio16(little_endian,
skb->csum_offset);
+ } else if (has_data_valid &&
+ skb->ip_summed == CHECKSUM_UNNECESSARY) {
+ hdr->flags = VIRTIO_NET_HDR_F_DATA_VALID;
} /* else everything is zero */
return 0;
@@ -1972,7 +1972,7 @@ static int __packet_rcv_vnet(const struct sk_buff *skb,
{
*vnet_hdr = (const struct virtio_net_hdr) { 0 };
- if (virtio_net_hdr_from_skb(skb, vnet_hdr, vio_le()))
+ if (virtio_net_hdr_from_skb(skb, vnet_hdr, vio_le(), true))
BUG();
return 0;