diff options
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 186ce541c657..280d3d2a9792 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -174,7 +174,7 @@ struct tun_struct { struct net_device *dev; netdev_features_t set_features; #define TUN_USER_FEATURES (NETIF_F_HW_CSUM|NETIF_F_TSO_ECN|NETIF_F_TSO| \ - NETIF_F_TSO6|NETIF_F_UFO) + NETIF_F_TSO6) int vnet_hdr_sz; int sndbuf; @@ -1149,8 +1149,18 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; break; case VIRTIO_NET_HDR_GSO_UDP: + { + static bool warned; + + if (!warned) { + warned = true; + netdev_warn(tun->dev, + "%s: using disabled UFO feature; please fix this program\n", + current->comm); + } skb_shinfo(skb)->gso_type = SKB_GSO_UDP; break; + } default: tun->dev->stats.rx_frame_errors++; kfree_skb(skb); @@ -1251,8 +1261,6 @@ static ssize_t tun_put_user(struct tun_struct *tun, gso.gso_type = VIRTIO_NET_HDR_GSO_TCPV4; else if (sinfo->gso_type & SKB_GSO_TCPV6) gso.gso_type = VIRTIO_NET_HDR_GSO_TCPV6; - else if (sinfo->gso_type & SKB_GSO_UDP) - gso.gso_type = VIRTIO_NET_HDR_GSO_UDP; else { pr_err("unexpected GSO type: " "0x%x, gso_size %d, hdr_len %d\n", @@ -1762,11 +1770,6 @@ static int set_offload(struct tun_struct *tun, unsigned long arg) features |= NETIF_F_TSO6; arg &= ~(TUN_F_TSO4|TUN_F_TSO6); } - - if (arg & TUN_F_UFO) { - features |= NETIF_F_UFO; - arg &= ~TUN_F_UFO; - } } /* This gives the user a way to test for new features in future by |