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| author |   Michael S. Tsirkin <mst@redhat.com> | 2014-11-23 18:16:19 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-12-09 12:06:32 +0200 |
| commit | dc9e51534b70e5c4a99235e940dc6f0f466fe175 (patch) | |
| tree | fc3c9e242e9dafd4e0186793d8f77c00b31799da /net/packet/af_packet.c | |
| parent | vhost/scsi: partial virtio 1.0 support (diff) | |
| download | linux-dev-dc9e51534b70e5c4a99235e940dc6f0f466fe175.tar.xz linux-dev-dc9e51534b70e5c4a99235e940dc6f0f466fe175.zip | |
af_packet: virtio 1.0 stubs
This merely fixes sparse warnings, without actually
adding support for the new APIs.
Still working out the best way to enable the new
functionality.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'net/packet/af_packet.c')
| -rw-r--r-- | net/packet/af_packet.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 07c04a841ba0..586229a14ad3 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2444,13 +2444,15 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) goto out_unlock; if ((vnet_hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) && - (vnet_hdr.csum_start + vnet_hdr.csum_offset + 2 > - vnet_hdr.hdr_len)) - vnet_hdr.hdr_len = vnet_hdr.csum_start + - vnet_hdr.csum_offset + 2; + (__virtio16_to_cpu(false, vnet_hdr.csum_start) + + __virtio16_to_cpu(false, vnet_hdr.csum_offset) + 2 > + __virtio16_to_cpu(false, vnet_hdr.hdr_len))) + vnet_hdr.hdr_len = __cpu_to_virtio16(false, + __virtio16_to_cpu(false, vnet_hdr.csum_start) + + __virtio16_to_cpu(false, vnet_hdr.csum_offset) + 2); err = -EINVAL; - if (vnet_hdr.hdr_len > len) + if (__virtio16_to_cpu(false, vnet_hdr.hdr_len) > len) goto out_unlock; if (vnet_hdr.gso_type != VIRTIO_NET_HDR_GSO_NONE) { @@ -2492,7 +2494,8 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) err = -ENOBUFS; hlen = LL_RESERVED_SPACE(dev); tlen = dev->needed_tailroom; - skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, vnet_hdr.hdr_len, + skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, + __virtio16_to_cpu(false, vnet_hdr.hdr_len), msg->msg_flags & MSG_DONTWAIT, &err); if (skb == NULL) goto out_unlock; @@ -2534,14 +2537,16 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) if (po->has_vnet_hdr) { if (vnet_hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) { - if (!skb_partial_csum_set(skb, vnet_hdr.csum_start, - vnet_hdr.csum_offset)) { + u16 s = __virtio16_to_cpu(false, vnet_hdr.csum_start); + u16 o = __virtio16_to_cpu(false, vnet_hdr.csum_offset); + if (!skb_partial_csum_set(skb, s, o)) { err = -EINVAL; goto out_free; } } - skb_shinfo(skb)->gso_size = vnet_hdr.gso_size; + skb_shinfo(skb)->gso_size = + __virtio16_to_cpu(false, vnet_hdr.gso_size); skb_shinfo(skb)->gso_type = gso_type; /* Header must be checked, and gso_segs computed. */ @@ -2912,8 +2917,10 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, struct skb_shared_info *sinfo = skb_shinfo(skb); /* This is a hint as to how much should be linear. */ - vnet_hdr.hdr_len = skb_headlen(skb); - vnet_hdr.gso_size = sinfo->gso_size; + vnet_hdr.hdr_len = + __cpu_to_virtio16(false, skb_headlen(skb)); + vnet_hdr.gso_size = + __cpu_to_virtio16(false, 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) @@ -2931,8 +2938,10 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, if (skb->ip_summed == CHECKSUM_PARTIAL) { vnet_hdr.flags = VIRTIO_NET_HDR_F_NEEDS_CSUM; - vnet_hdr.csum_start = skb_checksum_start_offset(skb); - vnet_hdr.csum_offset = skb->csum_offset; + vnet_hdr.csum_start = __cpu_to_virtio16(false, + skb_checksum_start_offset(skb)); + vnet_hdr.csum_offset = __cpu_to_virtio16(false, + skb->csum_offset); } else if (skb->ip_summed == CHECKSUM_UNNECESSARY) { vnet_hdr.flags = VIRTIO_NET_HDR_F_DATA_VALID; } /* else everything is zero */ |