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authorRusty Russell <rusty@rustcorp.com.au>2008-02-04 23:49:54 -0500
committerRusty Russell <rusty@rustcorp.com.au>2008-02-04 23:49:56 +1100
commitf35d9d8aae08940b7fdd1bb8110619da2ece6b28 (patch)
tree562d8d7a6583d0a0750ec8d996026b73e8315421 /drivers/net/virtio_net.c
parent9135f1901ee6449dfe338adf6e40e9c2025b8150 (diff)
virtio: Implement skb_partial_csum_set, for setting partial csums on untrusted packets.
Use it in virtio_net (replacing buggy version there), it's also going to be used by TAP for partial csum support. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 5413dbf3d4a..a60505c8f82 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -83,17 +83,8 @@ static void receive_skb(struct net_device *dev, struct sk_buff *skb,
if (hdr->flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) {
pr_debug("Needs csum!\n");
- skb->ip_summed = CHECKSUM_PARTIAL;
- skb->csum_start = hdr->csum_start;
- skb->csum_offset = hdr->csum_offset;
- if (skb->csum_start > skb->len - 2
- || skb->csum_offset > skb->len - 2) {
- if (net_ratelimit())
- printk(KERN_WARNING "%s: csum=%u/%u len=%u\n",
- dev->name, skb->csum_start,
- skb->csum_offset, skb->len);
+ if (!skb_partial_csum_set(skb,hdr->csum_start,hdr->csum_offset))
goto frame_err;
- }
}
if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) {