1 files changed, 20 insertions, 16 deletions

diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index 0bc866c0d83c..a6c0cdf46ad6 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -18,8 +18,8 @@
 
 static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
 {
-        struct ipv6hdr *outer_iph = skb->nh.ipv6h;
-        struct ipv6hdr *inner_iph = skb->h.ipv6h;
+        struct ipv6hdr *outer_iph = ipv6_hdr(skb);
+        struct ipv6hdr *inner_iph = ipipv6_hdr(skb);
 
         if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph)))
                 IP6_ECN_set_ce(inner_iph);
@@ -27,8 +27,8 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
 
 static inline void ip6ip_ecn_decapsulate(struct sk_buff *skb)
 {
-        if (INET_ECN_is_ce(ipv6_get_dsfield(skb->nh.ipv6h)))
-                        IP_ECN_set_ce(skb->h.ipiph);
+        if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6_hdr(skb))))
+                        IP_ECN_set_ce(ipip_hdr(skb));
 }
 
 /* Add encapsulation header.
@@ -51,12 +51,12 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
         int dsfield;
 
         skb_push(skb, x->props.header_len);
-        iph = skb->nh.ipv6h;
+        iph = ipv6_hdr(skb);
 
-        skb->nh.raw = skb->data;
-        top_iph = skb->nh.ipv6h;
-        skb->nh.raw = &top_iph->nexthdr;
-        skb->h.ipv6h = top_iph + 1;
+        skb_reset_network_header(skb);
+        top_iph = ipv6_hdr(skb);
+        skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
+        skb->network_header   += offsetof(struct ipv6hdr, nexthdr);
 
         top_iph->version = 6;
         if (xdst->route->ops->family == AF_INET6) {
@@ -86,9 +86,11 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
 {
         int err = -EINVAL;
+        const unsigned char *old_mac;
+        const unsigned char *nh = skb_network_header(skb);
 
-        if (skb->nh.raw[IP6CB(skb)->nhoff] != IPPROTO_IPV6
-            && skb->nh.raw[IP6CB(skb)->nhoff] != IPPROTO_IPIP)
+        if (nh[IP6CB(skb)->nhoff] != IPPROTO_IPV6 &&
+            nh[IP6CB(skb)->nhoff] != IPPROTO_IPIP)
                 goto out;
         if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
                 goto out;
@@ -97,9 +99,10 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
             (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
                 goto out;
 
-        if (skb->nh.raw[IP6CB(skb)->nhoff] == IPPROTO_IPV6) {
+        nh = skb_network_header(skb);
+        if (nh[IP6CB(skb)->nhoff] == IPPROTO_IPV6) {
                 if (x->props.flags & XFRM_STATE_DECAP_DSCP)
-                        ipv6_copy_dscp(skb->nh.ipv6h, skb->h.ipv6h);
+                        ipv6_copy_dscp(ipv6_hdr(skb), ipipv6_hdr(skb));
                 if (!(x->props.flags & XFRM_STATE_NOECN))
                         ipip6_ecn_decapsulate(skb);
         } else {
@@ -107,9 +110,10 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
                         ip6ip_ecn_decapsulate(skb);
                 skb->protocol = htons(ETH_P_IP);
         }
-        skb->mac.raw = memmove(skb->data - skb->mac_len,
-                               skb->mac.raw, skb->mac_len);
-        skb->nh.raw = skb->data;
+        old_mac = skb_mac_header(skb);
+        skb_set_mac_header(skb, -skb->mac_len);
+        memmove(skb_mac_header(skb), old_mac, skb->mac_len);
+        skb_reset_network_header(skb);
         err = 0;
 
 out: