Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/linville...

[safe/jmp/linux-2.6] / net / ipv6 / ip6_tunnel.c

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index af256d4..c595bbe 100644 (file)
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -394,13 +394,13 @@ parse_tlv_tnl_enc_lim(struct sk_buff *skb, __u8 * raw)
 
 static int
 ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
-           int *type, int *code, int *msg, __u32 *info, int offset)
+           u8 *type, u8 *code, int *msg, __u32 *info, int offset)
 {
        struct ipv6hdr *ipv6h = (struct ipv6hdr *) skb->data;
        struct ip6_tnl *t;
        int rel_msg = 0;
-       int rel_type = ICMPV6_DEST_UNREACH;
-       int rel_code = ICMPV6_ADDR_UNREACH;
+       u8 rel_type = ICMPV6_DEST_UNREACH;
+       u8 rel_code = ICMPV6_ADDR_UNREACH;
        __u32 rel_info = 0;
        __u16 len;
        int err = -ENOENT;
@@ -488,11 +488,11 @@ out:
 
 static int
 ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-          int type, int code, int offset, __be32 info)
+          u8 type, u8 code, int offset, __be32 info)
 {
        int rel_msg = 0;
-       int rel_type = type;
-       int rel_code = code;
+       u8 rel_type = type;
+       u8 rel_code = code;
        __u32 rel_info = ntohl(info);
        int err;
        struct sk_buff *skb2;
@@ -532,8 +532,8 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
        if (!skb2)
                return 0;
 
-       dst_release(skb2->dst);
-       skb2->dst = NULL;
+       skb_dst_drop(skb2);
+
        skb_pull(skb2, offset);
        skb_reset_network_header(skb2);
        eiph = ip_hdr(skb2);
@@ -560,21 +560,21 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
                        ip_rt_put(rt);
                        goto out;
                }
-               skb2->dst = (struct dst_entry *)rt;
+               skb_dst_set(skb2, (struct dst_entry *)rt);
        } else {
                ip_rt_put(rt);
                if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos,
                                   skb2->dev) ||
-                   skb2->dst->dev->type != ARPHRD_TUNNEL)
+                   skb_dst(skb2)->dev->type != ARPHRD_TUNNEL)
                        goto out;
        }
 
        /* change mtu on this route */
        if (rel_type == ICMP_DEST_UNREACH && rel_code == ICMP_FRAG_NEEDED) {
-               if (rel_info > dst_mtu(skb2->dst))
+               if (rel_info > dst_mtu(skb_dst(skb2)))
                        goto out;
 
-               skb2->dst->ops->update_pmtu(skb2->dst, rel_info);
+               skb_dst(skb2)->ops->update_pmtu(skb_dst(skb2), rel_info);
        }
 
        icmp_send(skb2, rel_type, rel_code, htonl(rel_info));
@@ -586,11 +586,11 @@ out:
 
 static int
 ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-          int type, int code, int offset, __be32 info)
+          u8 type, u8 code, int offset, __be32 info)
 {
        int rel_msg = 0;
-       int rel_type = type;
-       int rel_code = code;
+       u8 rel_type = type;
+       u8 rel_code = code;
        __u32 rel_info = ntohl(info);
        int err;
 
@@ -606,8 +606,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
                if (!skb2)
                        return 0;
 
-               dst_release(skb2->dst);
-               skb2->dst = NULL;
+               skb_dst_drop(skb2);
                skb_pull(skb2, offset);
                skb_reset_network_header(skb2);
 
@@ -720,8 +719,7 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
                skb->pkt_type = PACKET_HOST;
                memset(skb->cb, 0, sizeof(struct inet6_skb_parm));
                skb->dev = t->dev;
-               dst_release(skb->dst);
-               skb->dst = NULL;
+               skb_dst_drop(skb);
                nf_reset(skb);
 
                dscp_ecn_decapsulate(t, ipv6h, skb);
@@ -885,8 +883,8 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
        }
        if (mtu < IPV6_MIN_MTU)
                mtu = IPV6_MIN_MTU;
-       if (skb->dst)
-               skb->dst->ops->update_pmtu(skb->dst, mtu);
+       if (skb_dst(skb))
+               skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
        if (skb->len > mtu) {
                *pmtu = mtu;
                err = -EMSGSIZE;
@@ -910,8 +908,8 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
                kfree_skb(skb);
                skb = new_skb;
        }
-       dst_release(skb->dst);
-       skb->dst = dst_clone(dst);
+       skb_dst_drop(skb);
+       skb_dst_set(skb, dst_clone(dst));
 
        skb->transport_header = skb->network_header;
 
@@ -1038,18 +1036,13 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
        return 0;
 }
 
-static int
+static netdev_tx_t
 ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
 {
        struct ip6_tnl *t = netdev_priv(dev);
        struct net_device_stats *stats = &t->dev->stats;
        int ret;
 
-       if (t->recursion++) {
-               stats->collisions++;
-               goto tx_err;
-       }
-
        switch (skb->protocol) {
        case htons(ETH_P_IP):
                ret = ip4ip6_tnl_xmit(skb, dev);
@@ -1064,15 +1057,13 @@ ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
        if (ret < 0)
                goto tx_err;
 
-       t->recursion--;
-       return 0;
+       return NETDEV_TX_OK;
 
 tx_err:
        stats->tx_errors++;
        stats->tx_dropped++;
        kfree_skb(skb);
-       t->recursion--;
-       return 0;
+       return NETDEV_TX_OK;
 }
 
 static void ip6_tnl_set_cap(struct ip6_tnl *t)