Merge Linux 2.6.23

[linux-2.6-omap-h63xx.git] / net / ipv4 / ipip.c

diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index b32b50114806f2c874ea9340a47411f357a992d4..396437242a1b36186db17ff5aaa1bf5d60a1734b 100644 (file)
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -157,10 +157,10 @@ static struct ip_tunnel * ipip_tunnel_lookup(__be32 remote, __be32 local)
        return NULL;
 }
 
-static struct ip_tunnel **ipip_bucket(struct ip_tunnel *t)
+static struct ip_tunnel **__ipip_bucket(struct ip_tunnel_parm *parms)
 {
-       __be32 remote = t->parms.iph.daddr;
-       __be32 local = t->parms.iph.saddr;
+       __be32 remote = parms->iph.daddr;
+       __be32 local = parms->iph.saddr;
        unsigned h = 0;
        int prio = 0;
 
@@ -175,6 +175,10 @@ static struct ip_tunnel **ipip_bucket(struct ip_tunnel *t)
        return &tunnels[prio][h];
 }
 
+static inline struct ip_tunnel **ipip_bucket(struct ip_tunnel *t)
+{
+       return __ipip_bucket(&t->parms);
+}
 
 static void ipip_tunnel_unlink(struct ip_tunnel *t)
 {
@@ -206,19 +210,9 @@ static struct ip_tunnel * ipip_tunnel_locate(struct ip_tunnel_parm *parms, int c
        __be32 local = parms->iph.saddr;
        struct ip_tunnel *t, **tp, *nt;
        struct net_device *dev;
-       unsigned h = 0;
-       int prio = 0;
        char name[IFNAMSIZ];
 
-       if (remote) {
-               prio |= 2;
-               h ^= HASH(remote);
-       }
-       if (local) {
-               prio |= 1;
-               h ^= HASH(local);
-       }
-       for (tp = &tunnels[prio][h]; (t = *tp) != NULL; tp = &t->next) {
+       for (tp = __ipip_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
                if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr)
                        return t;
        }
@@ -485,7 +479,7 @@ static int ipip_rcv(struct sk_buff *skb)
 
                secpath_reset(skb);
 
-               skb->mac.raw = skb->nh.raw;
+               skb->mac_header = skb->network_header;
                skb_reset_network_header(skb);
                skb->protocol = htons(ETH_P_IP);
                skb->pkt_type = PACKET_HOST;
@@ -601,7 +595,8 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
         */
        max_headroom = (LL_RESERVED_SPACE(tdev)+sizeof(struct iphdr));
 
-       if (skb_headroom(skb) < max_headroom || skb_cloned(skb) || skb_shared(skb)) {
+       if (skb_headroom(skb) < max_headroom || skb_shared(skb) ||
+           (skb_cloned(skb) && !skb_clone_writable(skb, 0))) {
                struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom);
                if (!new_skb) {
                        ip_rt_put(rt);
@@ -617,7 +612,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
                old_iph = ip_hdr(skb);
        }
 
-       skb->h.raw = skb->nh.raw;
+       skb->transport_header = skb->network_header;
        skb_push(skb, sizeof(struct iphdr));
        skb_reset_network_header(skb);
        memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));