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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-11 12:20:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-11 12:20:31 -0800
commit6b9e2cea428cf7af93a84bcb865e478d8bf1c165 (patch)
tree11be387e37129fce0c4c111803df1a2e56637b60 /net
parent14ba9a2e4bacc6f5a0dbe0de5390daedd544508f (diff)
parentf01a2a811ae04124fc9382925038fcbbd2f0b7c8 (diff)
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin: "virtio: virtio 1.0 support, misc patches This adds a lot of infrastructure for virtio 1.0 support. Notable missing pieces: virtio pci, virtio balloon (needs spec extension), vhost scsi. Plus, there are some minor fixes in a couple of places. Note: some net drivers are affected by these patches. David said he's fine with merging these patches through my tree. Rusty's on vacation, he acked using my tree for these, too" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (70 commits) virtio_ccw: finalize_features error handling virtio_ccw: future-proof finalize_features virtio_pci: rename virtio_pci -> virtio_pci_common virtio_pci: update file descriptions and copyright virtio_pci: split out legacy device support virtio_pci: setup config vector indirectly virtio_pci: setup vqs indirectly virtio_pci: delete vqs indirectly virtio_pci: use priv for vq notification virtio_pci: free up vq->priv virtio_pci: fix coding style for structs virtio_pci: add isr field virtio: drop legacy_only driver flag virtio_balloon: drop legacy_only driver flag virtio_ccw: rev 1 devices set VIRTIO_F_VERSION_1 virtio: allow finalize_features to fail virtio_ccw: legacy: don't negotiate rev 1/features virtio: add API to detect legacy devices virtio_console: fix sparse warnings vhost: remove unnecessary forward declarations in vhost.h ...
Diffstat (limited to 'net')
-rw-r--r--net/packet/af_packet.c35
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 */