1 files changed, 31 insertions, 32 deletions

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 9151da642318..63282934725e 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -191,11 +191,11 @@ static struct ip_tunnel * ipgre_tunnel_lookup(__be32 remote, __be32 local, __be3
         return NULL;
 }
 
-static struct ip_tunnel **ipgre_bucket(struct ip_tunnel *t)
+static struct ip_tunnel **__ipgre_bucket(struct ip_tunnel_parm *parms)
 {
-        __be32 remote = t->parms.iph.daddr;
-        __be32 local = t->parms.iph.saddr;
-        __be32 key = t->parms.i_key;
+        __be32 remote = parms->iph.daddr;
+        __be32 local = parms->iph.saddr;
+        __be32 key = parms->i_key;
         unsigned h = HASH(key);
         int prio = 0;
 
@@ -209,6 +209,11 @@ static struct ip_tunnel **ipgre_bucket(struct ip_tunnel *t)
         return &tunnels[prio][h];
 }
 
+static inline struct ip_tunnel **ipgre_bucket(struct ip_tunnel *t)
+{
+        return __ipgre_bucket(&t->parms);
+}
+
 static void ipgre_tunnel_link(struct ip_tunnel *t)
 {
         struct ip_tunnel **tp = ipgre_bucket(t);
@@ -240,17 +245,9 @@ static struct ip_tunnel * ipgre_tunnel_locate(struct ip_tunnel_parm *parms, int
         __be32 key = parms->i_key;
         struct ip_tunnel *t, **tp, *nt;
         struct net_device *dev;
-        unsigned h = HASH(key);
-        int prio = 0;
         char name[IFNAMSIZ];
 
-        if (local)
-                prio |= 1;
-        if (remote && !MULTICAST(remote)) {
-                prio |= 2;
-                h ^= HASH(remote);
-        }
-        for (tp = &tunnels[prio][h]; (t = *tp) != NULL; tp = &t->next) {
+        for (tp = __ipgre_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
                 if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) {
                         if (key == t->parms.i_key)
                                 return t;
@@ -320,8 +317,8 @@ static void ipgre_err(struct sk_buff *skb, u32 info)
         struct iphdr *iph = (struct iphdr*)skb->data;
         __be16       *p = (__be16*)(skb->data+(iph->ihl<<2));
         int grehlen = (iph->ihl<<2) + 4;
-        int type = skb->h.icmph->type;
-        int code = skb->h.icmph->code;
+        const int type = icmp_hdr(skb)->type;
+        const int code = icmp_hdr(skb)->code;
         struct ip_tunnel *t;
         __be16 flags;
 
@@ -388,8 +385,8 @@ out:
         struct iphdr *iph = (struct iphdr*)dp;
         struct iphdr *eiph;
         __be16       *p = (__be16*)(dp+(iph->ihl<<2));
-        int type = skb->h.icmph->type;
-        int code = skb->h.icmph->code;
+        const int type = icmp_hdr(skb)->type;
+        const int code = icmp_hdr(skb)->code;
         int rel_type = 0;
         int rel_code = 0;
         __be32 rel_info = 0;
@@ -422,7 +419,7 @@ out:
         default:
                 return;
         case ICMP_PARAMETERPROB:
-                n = ntohl(skb->h.icmph->un.gateway) >> 24;
+                n = ntohl(icmp_hdr(skb)->un.gateway) >> 24;
                 if (n < (iph->ihl<<2))
                         return;
 
@@ -442,7 +439,7 @@ out:
                         return;
                 case ICMP_FRAG_NEEDED:
                         /* And it is the only really necessary thing :-) */
-                        n = ntohs(skb->h.icmph->un.frag.mtu);
+                        n = ntohs(icmp_hdr(skb)->un.frag.mtu);
                         if (n < grehlen+68)
                                 return;
                         n -= grehlen;
@@ -474,7 +471,7 @@ out:
         dst_release(skb2->dst);
         skb2->dst = NULL;
         skb_pull(skb2, skb->data - (u8*)eiph);
-        skb2->nh.raw = skb2->data;
+        skb_reset_network_header(skb2);
 
         /* Try to guess incoming interface */
         memset(&fl, 0, sizeof(fl));
@@ -533,9 +530,9 @@ static inline void ipgre_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
 {
         if (INET_ECN_is_ce(iph->tos)) {
                 if (skb->protocol == htons(ETH_P_IP)) {
-                        IP_ECN_set_ce(skb->nh.iph);
+                        IP_ECN_set_ce(ip_hdr(skb));
                 } else if (skb->protocol == htons(ETH_P_IPV6)) {
-                        IP6_ECN_set_ce(skb->nh.ipv6h);
+                        IP6_ECN_set_ce(ipv6_hdr(skb));
                 }
         }
 }
@@ -565,7 +562,7 @@ static int ipgre_rcv(struct sk_buff *skb)
         if (!pskb_may_pull(skb, 16))
                 goto drop_nolock;
 
-        iph = skb->nh.iph;
+        iph = ip_hdr(skb);
         h = skb->data;
         flags = *(__be16*)h;
 
@@ -616,9 +613,10 @@ static int ipgre_rcv(struct sk_buff *skb)
                                 offset += 4;
                 }
 
-                skb->mac.raw = skb->nh.raw;
-                skb->nh.raw = __pskb_pull(skb, offset);
-                skb_postpull_rcsum(skb, skb->h.raw, offset);
+                skb_reset_mac_header(skb);
+                __pskb_pull(skb, offset);
+                skb_reset_network_header(skb);
+                skb_postpull_rcsum(skb, skb_transport_header(skb), offset);
                 skb->pkt_type = PACKET_HOST;
 #ifdef CONFIG_NET_IPGRE_BROADCAST
                 if (MULTICAST(iph->daddr)) {
@@ -669,7 +667,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 {
         struct ip_tunnel *tunnel = netdev_priv(dev);
         struct net_device_stats *stats = &tunnel->stat;
-        struct iphdr  *old_iph = skb->nh.iph;
+        struct iphdr  *old_iph = ip_hdr(skb);
         struct iphdr  *tiph;
         u8     tos;
         __be16 df;
@@ -720,7 +718,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
                         addr_type = ipv6_addr_type(addr6);
 
                         if (addr_type == IPV6_ADDR_ANY) {
-                                addr6 = &skb->nh.ipv6h->daddr;
+                                addr6 = &ipv6_hdr(skb)->daddr;
                                 addr_type = ipv6_addr_type(addr6);
                         }
 
@@ -824,11 +822,12 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
                         skb_set_owner_w(new_skb, skb->sk);
                 dev_kfree_skb(skb);
                 skb = new_skb;
-                old_iph = skb->nh.iph;
+                old_iph = ip_hdr(skb);
         }
 
-        skb->h.raw = skb->nh.raw;
-        skb->nh.raw = skb_push(skb, gre_hlen);
+        skb->transport_header = skb->network_header;
+        skb_push(skb, gre_hlen);
+        skb_reset_network_header(skb);
         memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
         IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
                               IPSKB_REROUTED);
@@ -839,7 +838,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
          *      Push down and install the IPIP header.
          */
 
-        iph                     =       skb->nh.iph;
+        iph                     =       ip_hdr(skb);
         iph->version            =       4;
         iph->ihl                =       sizeof(struct iphdr) >> 2;
         iph->frag_off           =       df;