From: Herbert Xu Date: Thu, 4 Jun 2009 00:59:18 +0000 (+0000) Subject: virtio_net: Set correct gso->hdr_len X-Git-Tag: v2.6.31-rc1~14^2~205 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b82f08ea162edeee6c2c70c6c4321bea4763fa35;p=profile%2Fcommon%2Fkernel-common.git virtio_net: Set correct gso->hdr_len Through a bug in the tun driver, I noticed that virtio_net is producing bogus hdr_len values. In particular, it only includes the IP header in the linear area, and excludes the entire TCP header. This causes the TCP header to be copied twice for each packet. (The bug omitted the second copy :) This patch corrects this. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 0c9ca67..09bd441 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -470,7 +470,7 @@ static int xmit_skb(struct virtnet_info *vi, struct sk_buff *skb) } if (skb_is_gso(skb)) { - hdr->hdr_len = skb_transport_header(skb) - skb->data; + hdr->hdr_len = skb_headlen(skb); hdr->gso_size = skb_shinfo(skb)->gso_size; if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4) hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4;