diff options
| author | Jason Wang <jasowang@redhat.com> | 2017-01-20 14:32:42 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-04 09:47:09 +0100 |
| commit | 1e7cbb413f63d8fa790c8dabc208ce2a02339c26 (patch) | |
| tree | dad47281f67d7c7a336f8264305504089a3f5cba /include | |
| parent | 3eab5dd0eb19b6ebed8ef7e7477d9f3048cc78fa (diff) | |
virtio-net: restore VIRTIO_HDR_F_DATA_VALID on receiving
[ Upstream commit 6391a4481ba0796805d6581e42f9f0418c099e34 ]
Commit 501db511397f ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/virtio_net.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h index 40914bb396e7..f211c348e592 100644 --- a/include/linux/virtio_net.h +++ b/include/linux/virtio_net.h @@ -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; |