Merge remote-tracking branch 'regulator/topic/core' into regulator-next

[karo-tx-linux.git] / net / ipv4 / ip_forward.c

diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index be8abe73bb9f464a2e68679255acde3b708ce84b..6f111e48e11c15a19ffd60d345b1399fd3c66953 100644 (file)
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -42,12 +42,12 @@
 static bool ip_may_fragment(const struct sk_buff *skb)
 {
        return unlikely((ip_hdr(skb)->frag_off & htons(IP_DF)) == 0) ||
-              !skb->local_df;
+               skb->local_df;
 }
 
 static bool ip_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu)
 {
-       if (skb->len <= mtu || skb->local_df)
+       if (skb->len <= mtu)
                return false;
 
        if (skb_is_gso(skb) && skb_gso_network_seglen(skb) <= mtu)
@@ -56,53 +56,6 @@ static bool ip_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu)
        return true;
 }
 
-static bool ip_gso_exceeds_dst_mtu(const struct sk_buff *skb)
-{
-       unsigned int mtu;
-
-       if (skb->local_df || !skb_is_gso(skb))
-               return false;
-
-       mtu = ip_dst_mtu_maybe_forward(skb_dst(skb), true);
-
-       /* if seglen > mtu, do software segmentation for IP fragmentation on
-        * output.  DF bit cannot be set since ip_forward would have sent
-        * icmp error.
-        */
-       return skb_gso_network_seglen(skb) > mtu;
-}
-
-/* called if GSO skb needs to be fragmented on forward */
-static int ip_forward_finish_gso(struct sk_buff *skb)
-{
-       struct dst_entry *dst = skb_dst(skb);
-       netdev_features_t features;
-       struct sk_buff *segs;
-       int ret = 0;
-
-       features = netif_skb_dev_features(skb, dst->dev);
-       segs = skb_gso_segment(skb, features & ~NETIF_F_GSO_MASK);
-       if (IS_ERR(segs)) {
-               kfree_skb(skb);
-               return -ENOMEM;
-       }
-
-       consume_skb(skb);
-
-       do {
-               struct sk_buff *nskb = segs->next;
-               int err;
-
-               segs->next = NULL;
-               err = dst_output(segs);
-
-               if (err && ret == 0)
-                       ret = err;
-               segs = nskb;
-       } while (segs);
-
-       return ret;
-}
 
 static int ip_forward_finish(struct sk_buff *skb)
 {
@@ -114,9 +67,6 @@ static int ip_forward_finish(struct sk_buff *skb)
        if (unlikely(opt->optlen))
                ip_forward_options(skb);
 
-       if (ip_gso_exceeds_dst_mtu(skb))
-               return ip_forward_finish_gso(skb);
-
        return dst_output(skb);
 }