Revert "drivers/net, ipv6: Select IPv6 fragment idents for virtio UFO packets"

This reverts commit 5188cd44c55db3e92cd9e77a40b5baa7ed4340f7.

Now that GSO layer can track if fragment id has been selected
and can allocate one if necessary, we don't need to do this in
tap and macvtap.  This reverts most of the code and only keeps
the new ipv6 fragment id generation function that is still needed.

Fixes: 3d0ad09412ff (drivers/net: Disable UFO through virtio)
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 7df221788cd4dc7ae4d8c3ed2f53789296d00deb..0b86e46c130b97a1aeaeef33196a8f33ae37f872 100644 (file)
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -17,7 +17,6 @@
 #include <linux/fs.h>
 #include <linux/uio.h>
 
-#include <net/ipv6.h>
 #include <net/net_namespace.h>
 #include <net/rtnetlink.h>
 #include <net/sock.h>
@@ -589,8 +588,6 @@ static int macvtap_skb_from_vnet_hdr(struct macvtap_queue *q,
                        pr_warn_once("macvtap: %s: using disabled UFO feature; please fix this program\n",
                                     current->comm);
                        gso_type = SKB_GSO_UDP;
-                       if (skb->protocol == htons(ETH_P_IPV6))
-                               ipv6_proxy_select_ident(skb);
                        break;
                default:
                        return -EINVAL;

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 8c8dc16839a79473e976d9de2132cc6df911e418..5ca42b79b16f3d08b676119d5790a5ff35938177 100644 (file)
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -65,7 +65,6 @@
 #include <linux/nsproxy.h>
 #include <linux/virtio_net.h>
 #include <linux/rcupdate.h>
-#include <net/ipv6.h>
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
 #include <net/rtnetlink.h>
@@ -1167,8 +1166,6 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
                break;
        }
 
-       skb_reset_network_header(skb);
-
        if (gso.gso_type != VIRTIO_NET_HDR_GSO_NONE) {
                pr_debug("GSO!\n");
                switch (gso.gso_type & ~VIRTIO_NET_HDR_GSO_ECN) {
@@ -1189,8 +1186,6 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
                                            current->comm);
                        }
                        skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
-                       if (skb->protocol == htons(ETH_P_IPV6))
-                               ipv6_proxy_select_ident(skb);
                        break;
                }
                default:
@@ -1221,6 +1216,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
                skb_shinfo(skb)->tx_flags |= SKBTX_SHARED_FRAG;
        }
 
+       skb_reset_network_header(skb);
        skb_probe_transport_header(skb, 0);
 
        rxhash = skb_get_hash(skb);