[SK_BUFF]: Introduce skb_network_header()

For the places where we need a pointer to the network header, it is still legal
to touch skb->nh.raw directly if just adding to, subtracting from or setting it
to another layer header.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

59 files changed, 258 insertions, 185 deletions

diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index 0c2b3752e46e..cd3b1fa4a414 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -872,7 +872,8 @@ typedef struct {
 static void
 isdn_net_log_skb(struct sk_buff * skb, isdn_net_local * lp)
 {
-        u_char *p = skb->nh.raw; /* hopefully, this was set correctly */
+        /* hopefully, this was set correctly */
+        const u_char *p = skb_network_header(skb);
         unsigned short proto = ntohs(skb->protocol);
         int data_ofs;
         ip_ports *ipp;
@@ -880,7 +881,7 @@ isdn_net_log_skb(struct sk_buff * skb, isdn_net_local * lp)
 
         addinfo[0] = '\0';
         /* This check stolen from 2.1.72 dev_queue_xmit_nit() */
-        if (skb->nh.raw < skb->data || skb->nh.raw >= skb->tail) {
+        if (p < skb->data || p >= skb->tail) {
                 /* fall back to old isdn_net_log_packet method() */
                 char * buf = skb->data;
 
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 5c2a12c2b997..86cfcb3f8131 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -106,7 +106,7 @@ struct arp_pkt {
 
 static inline struct arp_pkt *arp_pkt(const struct sk_buff *skb)
 {
-        return (struct arp_pkt *)skb->nh.raw;
+        return (struct arp_pkt *)skb_network_header(skb);
 }
 
 /* Forward declaration */
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index af476d2a513d..9265c27b13b2 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -76,7 +76,8 @@ static DEFINE_PER_CPU(struct pcpu_lstats, pcpu_lstats);
 static void emulate_large_send_offload(struct sk_buff *skb)
 {
         struct iphdr *iph = skb->nh.iph;
-        struct tcphdr *th = (struct tcphdr*)(skb->nh.raw + (iph->ihl * 4));
+        struct tcphdr *th = (struct tcphdr *)(skb_network_header(skb) +
+                                              (iph->ihl * 4));
         unsigned int doffset = (iph->ihl + th->doff) * 4;
         unsigned int mtu = skb_shinfo(skb)->gso_size + doffset;
         unsigned int offset = 0;
@@ -93,7 +94,7 @@ static void emulate_large_send_offload(struct sk_buff *skb)
                 skb_set_mac_header(nskb, -ETH_HLEN);
                 skb_reset_network_header(nskb);
                 iph = nskb->nh.iph;
-                memcpy(nskb->data, skb->nh.raw, doffset);
+                memcpy(nskb->data, skb_network_header(skb), doffset);
                 if (skb_copy_bits(skb,
                                   doffset + offset,
                                   nskb->data + doffset,
@@ -108,7 +109,7 @@ static void emulate_large_send_offload(struct sk_buff *skb)
                 memcpy(nskb->cb, skb->cb, sizeof(skb->cb));
                 nskb->pkt_type = skb->pkt_type;
 
-                th = (struct tcphdr*)(nskb->nh.raw + iph->ihl*4);
+                th = (struct tcphdr *)(skb_network_header(nskb) + iph->ihl * 4);
                 iph->tot_len = htons(frag_size + doffset);
                 iph->id = htons(id);
                 iph->check = 0;
diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c
index 3f4213f3d5de..82218720bc3e 100644
--- a/drivers/net/pasemi_mac.c
+++ b/drivers/net/pasemi_mac.c
@@ -729,16 +729,18 @@ static int pasemi_mac_start_tx(struct sk_buff *skb, struct net_device *dev)
         dflags = XCT_MACTX_O | XCT_MACTX_ST | XCT_MACTX_SS | XCT_MACTX_CRC_PAD;
 
         if (skb->ip_summed == CHECKSUM_PARTIAL) {
+                const unsigned char *nh = skb_network_header(skb);
+
                 switch (skb->nh.iph->protocol) {
                 case IPPROTO_TCP:
                         dflags |= XCT_MACTX_CSUM_TCP;
                         dflags |= XCT_MACTX_IPH((skb->h.raw - skb->nh.raw) >> 2);
-                        dflags |= XCT_MACTX_IPO(skb->nh.raw - skb->data);
+                        dflags |= XCT_MACTX_IPO(nh - skb->data);
                         break;
                 case IPPROTO_UDP:
                         dflags |= XCT_MACTX_CSUM_UDP;
                         dflags |= XCT_MACTX_IPH((skb->h.raw - skb->nh.raw) >> 2);
-                        dflags |= XCT_MACTX_IPO(skb->nh.raw - skb->data);
+                        dflags |= XCT_MACTX_IPO(nh - skb->data);
                         break;
                 }
         }
diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c
index c0ee6d94ea38..0ff29e0628b5 100644
--- a/drivers/s390/net/qeth_main.c
+++ b/drivers/s390/net/qeth_main.c
@@ -3778,9 +3778,11 @@ qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
         }
         /* try something else */
         if (skb->protocol == ETH_P_IPV6)
-                return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
+                return (skb_network_header(skb)[24] == 0xff) ?
+                                RTN_MULTICAST : 0;
         else if (skb->protocol == ETH_P_IP)
-                return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
+                return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
+                                RTN_MULTICAST : 0;
         /* ... */
         if (!memcmp(skb->data, skb->dev->broadcast, 6))
                 return RTN_BROADCAST;
diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
index 7044f8ab30a0..29d6579ff1a0 100644
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -116,7 +116,7 @@ struct pppoe_hdr {
 
 static inline struct pppoe_hdr *pppoe_hdr(const struct sk_buff *skb)
 {
-        return (struct pppoe_hdr *)skb->nh.raw;
+        return (struct pppoe_hdr *)skb_network_header(skb);
 }
 
 struct pppoe_opt {
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 47cc8b07c2b4..76d30f34b986 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -960,6 +960,11 @@ static inline void skb_reserve(struct sk_buff *skb, int len)
         skb->tail += len;
 }
 
+static inline unsigned char *skb_network_header(const struct sk_buff *skb)
+{
+        return skb->nh.raw;
+}
+
 static inline void skb_reset_network_header(struct sk_buff *skb)
 {
         skb->nh.raw = skb->data;
diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h
index 4c9522c5178f..4f90f5554fac 100644
--- a/include/net/cipso_ipv4.h
+++ b/include/net/cipso_ipv4.h
@@ -120,7 +120,7 @@ extern int cipso_v4_rbm_strictvalid;
  */
 
 #define CIPSO_V4_OPTEXIST(x) (IPCB(x)->opt.cipso != 0)
-#define CIPSO_V4_OPTPTR(x) ((x)->nh.raw + IPCB(x)->opt.cipso)
+#define CIPSO_V4_OPTPTR(x) (skb_network_header(x) + IPCB(x)->opt.cipso)
 
 /*
  * DOI List Functions
diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
index 10117c8503e8..b9ed3898e368 100644
--- a/include/net/inet_ecn.h
+++ b/include/net/inet_ecn.h
@@ -114,12 +114,14 @@ static inline int INET_ECN_set_ce(struct sk_buff *skb)
 {
         switch (skb->protocol) {
         case __constant_htons(ETH_P_IP):
-                if (skb->nh.raw + sizeof(struct iphdr) <= skb->tail)
+                if (skb_network_header(skb) + sizeof(struct iphdr) <=
+                    skb->tail)
                         return IP_ECN_set_ce(skb->nh.iph);
                 break;
 
         case __constant_htons(ETH_P_IPV6):
-                if (skb->nh.raw + sizeof(struct ipv6hdr) <= skb->tail)
+                if (skb_network_header(skb) + sizeof(struct ipv6hdr) <=
+                    skb->tail)
                         return IP6_ECN_set_ce(skb->nh.ipv6h);
                 break;
         }
diff --git a/include/net/llc_pdu.h b/include/net/llc_pdu.h
index 778f75a40b4d..4a8f58b17e43 100644
--- a/include/net/llc_pdu.h
+++ b/include/net/llc_pdu.h
@@ -203,7 +203,7 @@ struct llc_pdu_sn {
 
 static inline struct llc_pdu_sn *llc_pdu_sn_hdr(struct sk_buff *skb)
 {
-        return (struct llc_pdu_sn *)skb->nh.raw;
+        return (struct llc_pdu_sn *)skb_network_header(skb);
 }
 
 /* Un-numbered PDU format (3 bytes in length) */
@@ -215,7 +215,7 @@ struct llc_pdu_un {
 
 static inline struct llc_pdu_un *llc_pdu_un_hdr(struct sk_buff *skb)
 {
-        return (struct llc_pdu_un *)skb->nh.raw;
+        return (struct llc_pdu_un *)skb_network_header(skb);
 }
 
 /**
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 02647fe3d74b..8a6b0e7bded5 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -326,7 +326,7 @@ static inline unsigned char * tcf_get_base_ptr(struct sk_buff *skb, int layer)
                 case TCF_LAYER_LINK:
                         return skb->data;
                 case TCF_LAYER_NETWORK:
-                        return skb->nh.raw;
+                        return skb_network_header(skb);
                 case TCF_LAYER_TRANSPORT:
                         return skb->h.raw;
         }
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 1163c4f69899..8a56d8963025 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -374,7 +374,8 @@ static int check_hbh_len(struct sk_buff *skb)
 {
         unsigned char *raw = (u8 *) (skb->nh.ipv6h + 1);
         u32 pkt_len;
-        int off = raw - skb->nh.raw;
+        const unsigned char *nh = skb_network_header(skb);
+        int off = raw - nh;
         int len = (raw[1] + 1) << 3;
 
         if ((raw + len) - skb->data > skb_headlen(skb))
@@ -384,9 +385,9 @@ static int check_hbh_len(struct sk_buff *skb)
         len -= 2;
 
         while (len > 0) {
-                int optlen = skb->nh.raw[off + 1] + 2;
+                int optlen = nh[off + 1] + 2;
 
-                switch (skb->nh.raw[off]) {
+                switch (nh[off]) {
                 case IPV6_TLV_PAD0:
                         optlen = 1;
                         break;
@@ -395,9 +396,9 @@ static int check_hbh_len(struct sk_buff *skb)
                         break;
 
                 case IPV6_TLV_JUMBO:
-                        if (skb->nh.raw[off + 1] != 4 || (off & 3) != 2)
+                        if (nh[off + 1] != 4 || (off & 3) != 2)
                                 goto bad;
-                        pkt_len = ntohl(*(__be32 *) (skb->nh.raw + off + 2));
+                        pkt_len = ntohl(*(__be32 *) (nh + off + 2));
                         if (pkt_len <= IPV6_MAXPLEN ||
                             skb->nh.ipv6h->payload_len)
                                 goto bad;
@@ -406,6 +407,7 @@ static int check_hbh_len(struct sk_buff *skb)
                         if (pskb_trim_rcsum(skb,
                                             pkt_len + sizeof(struct ipv6hdr)))
                                 goto bad;
+                        nh = skb_network_header(skb);
                         break;
                 default:
                         if (optlen > len)
diff --git a/net/core/dev.c b/net/core/dev.c
index 1b0758254ba0..54ffe9db9b02 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1068,8 +1068,8 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
                          */
                         skb_reset_mac_header(skb2);
 
-                        if (skb2->nh.raw < skb2->data ||
-                            skb2->nh.raw > skb2->tail) {
+                        if (skb_network_header(skb2) < skb2->data ||
+                            skb_network_header(skb2) > skb2->tail) {
                                 if (net_ratelimit())
                                         printk(KERN_CRIT "protocol %04x is "
                                                "buggy, dev %s\n",
@@ -1207,7 +1207,7 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
         BUG_ON(skb_shinfo(skb)->frag_list);
 
         skb_reset_mac_header(skb);
-        skb->mac_len = skb->nh.raw - skb->data;
+        skb->mac_len = skb->nh.raw - skb->mac.raw;
         __skb_pull(skb, skb->mac_len);
 
         if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
@@ -1224,7 +1224,8 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
                                 segs = ERR_PTR(err);
                                 if (err || skb_gso_ok(skb, features))
                                         break;
-                                __skb_push(skb, skb->data - skb->nh.raw);
+                                __skb_push(skb, (skb->data -
+                                                 skb_network_header(skb)));
                         }
                         segs = ptype->gso_segment(skb, features);
                         break;
diff --git a/net/core/filter.c b/net/core/filter.c
index 1cc128d05422..d2358a5e6339 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -42,7 +42,7 @@ static void *__load_pointer(struct sk_buff *skb, int k)
         u8 *ptr = NULL;
 
         if (k >= SKF_NET_OFF)
-                ptr = skb->nh.raw + k - SKF_NET_OFF;
+                ptr = skb_network_header(skb) + k - SKF_NET_OFF;
         else if (k >= SKF_LL_OFF)
                 ptr = skb_mac_header(skb) + k - SKF_LL_OFF;
 
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 7f51e8db3967..627d0c3c51cf 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -261,8 +261,8 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req,
 
                         if (rxopt->srcrt)
                                 opt = ipv6_invert_rthdr(sk,
-                                        (struct ipv6_rt_hdr *)(pktopts->nh.raw +
-                                                               rxopt->srcrt));
+                          (struct ipv6_rt_hdr *)(skb_network_header(pktopts) +
+                                                 rxopt->srcrt));
                 }
 
                 if (opt != NULL && opt->srcrt != NULL) {
@@ -573,8 +573,8 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 
                 if (rxopt->srcrt)
                         opt = ipv6_invert_rthdr(sk,
-                                (struct ipv6_rt_hdr *)(ireq6->pktopts->nh.raw +
-                                                       rxopt->srcrt));
+                   (struct ipv6_rt_hdr *)(skb_network_header(ireq6->pktopts) +
+                                          rxopt->srcrt));
         }
 
         if (dst == NULL) {
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 34079b7ba1d3..32a7db36c9e5 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -386,7 +386,7 @@ static int dn_return_short(struct sk_buff *skb)
         __le16 tmp;
 
         /* Add back headers */
-        skb_push(skb, skb->data - skb->nh.raw);
+        skb_push(skb, skb->data - skb_network_header(skb));
 
         if ((skb = skb_unshare(skb, GFP_ATOMIC)) == NULL)
                 return NET_RX_DROP;
@@ -425,7 +425,7 @@ static int dn_return_long(struct sk_buff *skb)
         unsigned char tmp[ETH_ALEN];
 
         /* Add back all headers */
-        skb_push(skb, skb->data - skb->nh.raw);
+        skb_push(skb, skb->data - skb_network_header(skb));
 
         if ((skb = skb_unshare(skb, GFP_ATOMIC)) == NULL)
                 return NET_RX_DROP;
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 6e5575b0abef..ab552a6098f9 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1184,7 +1184,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
                 iph->id = htons(id++);
                 iph->tot_len = htons(skb->len - skb->mac_len);
                 iph->check = 0;
-                iph->check = ip_fast_csum(skb->nh.raw, iph->ihl);
+                iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl);
         } while ((skb = skb->next));
 
 out:
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 7194eb40b6d0..95ddbbd1552a 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -154,7 +154,7 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
         ah = (struct ip_auth_hdr*)skb->data;
         iph = skb->nh.iph;
 
-        ihl = skb->data - skb->nh.raw;
+        ihl = skb->data - skb_network_header(skb);
         memcpy(work_buf, iph, ihl);
 
         iph->ttl = 0;
@@ -181,7 +181,8 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
                 }
         }
         ((struct iphdr*)work_buf)->protocol = ah->nexthdr;
-        skb->h.raw = memcpy(skb->nh.raw += ah_hlen, work_buf, ihl);
+        skb->nh.raw += ah_hlen;
+        skb->h.raw = memcpy(skb_network_header(skb), work_buf, ihl);
         __skb_pull(skb, ah_hlen + ihl);
 
         return 0;
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 31041127eeb8..222d21e5bbeb 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -57,9 +57,10 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
         *(u8*)(trailer->tail + clen-skb->len - 2) = (clen - skb->len)-2;
         pskb_put(skb, trailer, clen - skb->len);
 
-        __skb_push(skb, skb->data - skb->nh.raw);
+        __skb_push(skb, skb->data - skb_network_header(skb));
         top_iph = skb->nh.iph;
-        esph = (struct ip_esp_hdr *)(skb->nh.raw + top_iph->ihl*4);
+        esph = (struct ip_esp_hdr *)(skb_network_header(skb) +
+                                     top_iph->ihl * 4);
         top_iph->tot_len = htons(skb->len + alen);
         *(u8*)(trailer->tail - 1) = top_iph->protocol;
 
@@ -222,7 +223,7 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
 
         if (x->encap) {
                 struct xfrm_encap_tmpl *encap = x->encap;
-                struct udphdr *uh = (void *)(skb->nh.raw + ihl);
+                struct udphdr *uh = (void *)(skb_network_header(skb) + ihl);
 
                 /*
                  * 1) if the NAT-T peer's IP or port changed then
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 4b7a0d946a0d..ff124d40c585 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -484,7 +484,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
                         u8 _inner_type, *itp;
 
                         itp = skb_header_pointer(skb_in,
-                                                 skb_in->nh.raw +
+                                                 skb_network_header(skb_in) +
                                                  (iph->ihl << 2) +
                                                  offsetof(struct icmphdr,
                                                           type) -
@@ -536,7 +536,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
         icmp_param.data.icmph.un.gateway = info;
         icmp_param.data.icmph.checksum   = 0;
         icmp_param.skb    = skb_in;
-        icmp_param.offset = skb_in->nh.raw - skb_in->data;
+        icmp_param.offset = skb_network_offset(skb_in);
         icmp_out_count(icmp_param.data.icmph.type);
         inet_sk(icmp_socket->sk)->tos = tos;
         ipc.addr = iph->saddr;
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 3dfd7581cfc6..268a6c7347f2 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -658,7 +658,7 @@ static struct sk_buff *ip_frag_reasm(struct ipq *qp, struct net_device *dev)
         }
 
         skb_shinfo(head)->frag_list = head->next;
-        skb_push(head, head->data - head->nh.raw);
+        skb_push(head, head->data - skb_network_header(head));
         atomic_sub(head->truesize, &ip_frag_mem);
 
         for (fp=head->next; fp; fp = fp->next) {
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index f906a80d5a87..f7e9db612565 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -40,7 +40,7 @@
 void ip_options_build(struct sk_buff * skb, struct ip_options * opt,
                             __be32 daddr, struct rtable *rt, int is_frag)
 {
-        unsigned char * iph = skb->nh.raw;
+        unsigned char *iph = skb_network_header(skb);
 
         memcpy(&(IPCB(skb)->opt), opt, sizeof(struct ip_options));
         memcpy(iph+sizeof(struct iphdr), opt->__data, opt->optlen);
@@ -104,7 +104,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
                 return 0;
         }
 
-        sptr = skb->nh.raw;
+        sptr = skb_network_header(skb);
         dptr = dopt->__data;
 
         if (skb->dst)
@@ -217,7 +217,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
 
 void ip_options_fragment(struct sk_buff * skb)
 {
-        unsigned char * optptr = skb->nh.raw + sizeof(struct iphdr);
+        unsigned char *optptr = skb_network_header(skb) + sizeof(struct iphdr);
         struct ip_options * opt = &(IPCB(skb)->opt);
         int  l = opt->optlen;
         int  optlen;
@@ -264,7 +264,7 @@ int ip_options_compile(struct ip_options * opt, struct sk_buff * skb)
 
         if (!opt) {
                 opt = &(IPCB(skb)->opt);
-                iph = skb->nh.raw;
+                iph = skb_network_header(skb);
                 opt->optlen = ((struct iphdr *)iph)->ihl*4 - sizeof(struct iphdr);
                 optptr = iph + sizeof(struct iphdr);
                 opt->is_data = 0;
@@ -563,7 +563,7 @@ void ip_forward_options(struct sk_buff *skb)
         struct   ip_options * opt       = &(IPCB(skb)->opt);
         unsigned char * optptr;
         struct rtable *rt = (struct rtable*)skb->dst;
-        unsigned char *raw = skb->nh.raw;
+        unsigned char *raw = skb_network_header(skb);
 
         if (opt->rr_needaddr) {
                 optptr = (unsigned char *)raw + opt->rr;
@@ -609,7 +609,7 @@ int ip_options_rcv_srr(struct sk_buff *skb)
         int srrspace, srrptr;
         __be32 nexthop;
         struct iphdr *iph = skb->nh.iph;
-        unsigned char * optptr = skb->nh.raw + opt->srr;
+        unsigned char *optptr = skb_network_header(skb) + opt->srr;
         struct rtable *rt = (struct rtable*)skb->dst;
         struct rtable *rt2;
         int err;
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 669f5d97c6eb..eae228469627 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -503,7 +503,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
                                 frag->h.raw = frag->data;
                                 __skb_push(frag, hlen);
                                 skb_reset_network_header(frag);
-                                memcpy(frag->nh.raw, iph, hlen);
+                                memcpy(skb_network_header(frag), iph, hlen);
                                 iph = frag->nh.iph;
                                 iph->tot_len = htons(frag->len);
                                 ip_copy_metadata(frag, skb);
@@ -607,7 +607,7 @@ slow_path:
                  *      Copy the packet header into the new buffer.
                  */
 
-                memcpy(skb2->nh.raw, skb->data, hlen);
+                memcpy(skb_network_header(skb2), skb->data, hlen);
 
                 /*
                  *      Copy a block of the IP datagram.
@@ -1198,7 +1198,7 @@ int ip_push_pending_frames(struct sock *sk)
         tail_skb = &(skb_shinfo(skb)->frag_list);
 
         /* move skb->data to ip header from ext header */
-        if (skb->data < skb->nh.raw)
+        if (skb->data < skb_network_header(skb))
                 __skb_pull(skb, skb_network_offset(skb));
         while ((tmp_skb = __skb_dequeue(&sk->sk_write_queue)) != NULL) {
                 __skb_pull(tmp_skb, skb->h.raw - skb->nh.raw);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index f8ab654b6a35..70888e1ef6b7 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -273,7 +273,8 @@ void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
         serr->ee.ee_pad = 0;
         serr->ee.ee_info = info;
         serr->ee.ee_data = 0;
-        serr->addr_offset = (u8*)&(((struct iphdr*)(skb->h.icmph+1))->daddr) - skb->nh.raw;
+        serr->addr_offset = (u8 *)&(((struct iphdr *)(skb->h.icmph + 1))->daddr) -
+                                   skb_network_header(skb);
         serr->port = port;
 
         skb->h.raw = payload;
@@ -309,7 +310,7 @@ void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 port, u32 inf
         serr->ee.ee_pad = 0;
         serr->ee.ee_info = info;
         serr->ee.ee_data = 0;
-        serr->addr_offset = (u8*)&iph->daddr - skb->nh.raw;
+        serr->addr_offset = (u8 *)&iph->daddr - skb_network_header(skb);
         serr->port = port;
 
         skb->h.raw = skb->tail;
@@ -355,7 +356,8 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len)
         sin = (struct sockaddr_in *)msg->msg_name;
         if (sin) {
                 sin->sin_family = AF_INET;
-                sin->sin_addr.s_addr = *(__be32*)(skb->nh.raw + serr->addr_offset);
+                sin->sin_addr.s_addr = *(__be32 *)(skb_network_header(skb) +
+                                                   serr->addr_offset);
                 sin->sin_port = serr->port;
                 memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
         }
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 51528d3cc334..4a8d99bca441 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -563,7 +563,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
                  */
                 msg = (struct igmpmsg*)skb_push(skb, sizeof(struct iphdr));
                 skb->nh.raw = skb->h.raw = (u8*)msg;
-                memcpy(msg, pkt->nh.raw, sizeof(struct iphdr));
+                memcpy(msg, skb_network_header(pkt), sizeof(struct iphdr));
                 msg->im_msgtype = IGMPMSG_WHOLEPKT;
                 msg->im_mbz = 0;
                 msg->im_vif = reg_vif_num;
diff --git a/net/ipv4/ipvs/ip_vs_app.c b/net/ipv4/ipvs/ip_vs_app.c
index 22e104c6a493..f29d3a27eec6 100644
--- a/net/ipv4/ipvs/ip_vs_app.c
+++ b/net/ipv4/ipvs/ip_vs_app.c
@@ -338,7 +338,7 @@ static inline int app_tcp_pkt_out(struct ip_vs_conn *cp, struct sk_buff **pskb,
         if (!ip_vs_make_skb_writable(pskb, tcp_offset + sizeof(*th)))
                 return 0;
 
-        th = (struct tcphdr *)((*pskb)->nh.raw + tcp_offset);
+        th = (struct tcphdr *)(skb_network_header(*pskb) + tcp_offset);
 
         /*
          *      Remember seq number in case this pkt gets resized
@@ -413,7 +413,7 @@ static inline int app_tcp_pkt_in(struct ip_vs_conn *cp, struct sk_buff **pskb,
         if (!ip_vs_make_skb_writable(pskb, tcp_offset + sizeof(*th)))
                 return 0;
 
-        th = (struct tcphdr *)((*pskb)->nh.raw + tcp_offset);
+        th = (struct tcphdr *)(skb_network_header(*pskb) + tcp_offset);
 
         /*
          *      Remember seq number in case this pkt gets resized
diff --git a/net/ipv4/ipvs/ip_vs_core.c b/net/ipv4/ipvs/ip_vs_core.c
index 858686d616a2..5d54dd2ce12f 100644
--- a/net/ipv4/ipvs/ip_vs_core.c
+++ b/net/ipv4/ipvs/ip_vs_core.c
@@ -559,7 +559,8 @@ void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
 {
         struct iphdr *iph        = skb->nh.iph;
         unsigned int icmp_offset = iph->ihl*4;
-        struct icmphdr *icmph    = (struct icmphdr *)(skb->nh.raw + icmp_offset);
+        struct icmphdr *icmph    = (struct icmphdr *)(skb_network_header(skb) +
+                                                      icmp_offset);
         struct iphdr *ciph       = (struct iphdr *)(icmph + 1);
 
         if (inout) {
diff --git a/net/ipv4/netfilter/arpt_mangle.c b/net/ipv4/netfilter/arpt_mangle.c
index 709db4d3f48f..af1c8593eb19 100644
--- a/net/ipv4/netfilter/arpt_mangle.c
+++ b/net/ipv4/netfilter/arpt_mangle.c
@@ -31,7 +31,7 @@ target(struct sk_buff **pskb,
         }
 
         arp = (*pskb)->nh.arph;
-        arpptr = (*pskb)->nh.raw + sizeof(*arp);
+        arpptr = skb_network_header(*pskb) + sizeof(*arp);
         pln = arp->ar_pln;
         hln = arp->ar_hln;
         /* We assume that pln and hln were checked in the match */
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 8f3e92d20df8..7cebbff0b0c3 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -105,7 +105,7 @@ ipv4_prepare(struct sk_buff **pskb, unsigned int hooknum, unsigned int *dataoff,
                 return -NF_DROP;
         }
 
-        *dataoff = (*pskb)->nh.raw - (*pskb)->data + (*pskb)->nh.iph->ihl*4;
+        *dataoff = skb_network_offset(*pskb) + (*pskb)->nh.iph->ihl * 4;
         *protonum = (*pskb)->nh.iph->protocol;
 
         return NF_ACCEPT;
@@ -151,10 +151,9 @@ static unsigned int ipv4_conntrack_help(unsigned int hooknum,
         if (!help || !help->helper)
                 return NF_ACCEPT;
 
-        return help->helper->help(pskb,
-                               (*pskb)->nh.raw - (*pskb)->data
-                                               + (*pskb)->nh.iph->ihl*4,
-                               ct, ctinfo);
+        return help->helper->help(pskb, (skb_network_offset(*pskb) +
+                                         (*pskb)->nh.iph->ihl * 4),
+                                  ct, ctinfo);
 }
 
 static unsigned int ipv4_conntrack_defrag(unsigned int hooknum,
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 67e5e3c035c1..a3d02fdfc066 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -256,7 +256,7 @@ int raw_rcv(struct sock *sk, struct sk_buff *skb)
         }
         nf_reset(skb);
 
-        skb_push(skb, skb->data - skb->nh.raw);
+        skb_push(skb, skb->data - skb_network_header(skb));
 
         raw_rcv_skb(sk, skb);
         return 0;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index f5e019cefc15..00190835cea1 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3634,7 +3634,7 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
                         return;
 
                 skb_set_mac_header(nskb, skb_mac_header(skb) - skb->head);
-                nskb->nh.raw = nskb->data + (skb->nh.raw - skb->head);
+                nskb->nh.raw = nskb->data + (skb_network_header(skb) - skb->head);
                 nskb->h.raw = nskb->data + (skb->h.raw - skb->head);
 
                 skb_reserve(nskb, header);
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
index 78e80deb7e89..d89969c502dd 100644
--- a/net/ipv4/xfrm4_input.c
+++ b/net/ipv4/xfrm4_input.c
@@ -146,7 +146,7 @@ int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type)
                 return 0;
         } else {
 #ifdef CONFIG_NETFILTER
-                __skb_push(skb, skb->data - skb->nh.raw);
+                __skb_push(skb, skb->data - skb_network_header(skb));
                 skb->nh.iph->tot_len = htons(skb->len);
                 ip_send_check(skb->nh.iph);
 
diff --git a/net/ipv4/xfrm4_mode_beet.c b/net/ipv4/xfrm4_mode_beet.c
index eaaf3565f3b2..505fca034a1f 100644
--- a/net/ipv4/xfrm4_mode_beet.c
+++ b/net/ipv4/xfrm4_mode_beet.c
@@ -98,7 +98,7 @@ static int xfrm4_beet_input(struct xfrm_state *x, struct sk_buff *skb)
         }
 
         skb->nh.raw = skb->data + (phlen - sizeof(*iph));
-        memmove(skb->nh.raw, iph, sizeof(*iph));
+        memmove(skb_network_header(skb), iph, sizeof(*iph));
         skb->h.raw = skb->data + (phlen + optlen);
         skb->data = skb->h.raw;
 
@@ -112,7 +112,7 @@ static int xfrm4_beet_input(struct xfrm_state *x, struct sk_buff *skb)
         else
                 iph->protocol = protocol;
         iph->check = 0;
-        iph->check = ip_fast_csum(skb->nh.raw, iph->ihl);
+        iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl);
         err = 0;
 out:
         return err;
diff --git a/net/ipv4/xfrm4_mode_transport.c b/net/ipv4/xfrm4_mode_transport.c
index a820dde2c862..b198087c073e 100644
--- a/net/ipv4/xfrm4_mode_transport.c
+++ b/net/ipv4/xfrm4_mode_transport.c
@@ -34,7 +34,7 @@ static int xfrm4_transport_output(struct xfrm_state *x, struct sk_buff *skb)
 
         skb_push(skb, x->props.header_len);
         skb_reset_network_header(skb);
-        memmove(skb->nh.raw, iph, ihl);
+        memmove(skb_network_header(skb), iph, ihl);
         return 0;
 }
 
@@ -51,7 +51,7 @@ static int xfrm4_transport_input(struct xfrm_state *x, struct sk_buff *skb)
         int ihl = skb->data - skb->h.raw;
 
         if (skb->h.raw != skb->nh.raw) {
-                memmove(skb->h.raw, skb->nh.raw, ihl);
+                memmove(skb->h.raw, skb_network_header(skb), ihl);
                 skb->nh.raw = skb->h.raw;
         }
         skb->nh.iph->tot_len = htons(skb->len + ihl);
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 98a833ce1114..fbb1d3decf02 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -210,7 +210,7 @@ static void
 _decode_session4(struct sk_buff *skb, struct flowi *fl)
 {
         struct iphdr *iph = skb->nh.iph;
-        u8 *xprth = skb->nh.raw + iph->ihl*4;
+        u8 *xprth = skb_network_header(skb) + iph->ihl * 4;
 
         memset(fl, 0, sizeof(struct flowi));
         if (!(iph->frag_off & htons(IP_MF | IP_OFFSET))) {
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 2ff070417955..7b917f856e1c 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -693,7 +693,8 @@ int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb)
         if (np->rxopt.all) {
                 if ((opt->hop && (np->rxopt.bits.hopopts ||
                                   np->rxopt.bits.ohopopts)) ||
-                    ((IPV6_FLOWINFO_MASK & *(__be32*)skb->nh.raw) &&
+                    ((IPV6_FLOWINFO_MASK &
+                      *(__be32 *)skb_network_header(skb)) &&
                      np->rxopt.bits.rxflow) ||
                     (opt->srcrt && (np->rxopt.bits.srcrt ||
                      np->rxopt.bits.osrcrt)) ||
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index dc68b7269c3c..1c914386982f 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -238,8 +238,8 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
         top_iph = (struct ipv6hdr *)skb->data;
         top_iph->payload_len = htons(skb->len - sizeof(*top_iph));
 
-        nexthdr = *skb->nh.raw;
-        *skb->nh.raw = IPPROTO_AH;
+        nexthdr = *skb_network_header(skb);
+        *skb_network_header(skb) = IPPROTO_AH;
 
         /* When there are no extension headers, we only need to save the first
          * 8 bytes of the base IP header.
@@ -341,7 +341,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
             pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
                 goto out;
 
-        hdr_len = skb->data - skb->nh.raw;
+        hdr_len = skb->data - skb_network_header(skb);
         ah = (struct ipv6_auth_hdr*)skb->data;
         ahp = x->data;
         nexthdr = ah->nexthdr;
@@ -354,7 +354,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
         if (!pskb_may_pull(skb, ah_hlen))
                 goto out;
 
-        tmp_hdr = kmemdup(skb->nh.raw, hdr_len, GFP_ATOMIC);
+        tmp_hdr = kmemdup(skb_network_header(skb), hdr_len, GFP_ATOMIC);
         if (!tmp_hdr)
                 goto out;
         if (ipv6_clear_mutable_options(skb->nh.ipv6h, hdr_len, XFRM_POLICY_IN))
@@ -382,7 +382,9 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
                 }
         }
 
-        skb->h.raw = memcpy(skb->nh.raw += ah_hlen, tmp_hdr, hdr_len);
+        skb->nh.raw += ah_hlen;
+        memcpy(skb_network_header(skb), tmp_hdr, hdr_len);
+        skb->h.raw = skb->nh.raw;
         __skb_pull(skb, ah_hlen + hdr_len);
 
         kfree(tmp_hdr);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 31a20f17c854..7a86db6163ee 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -227,7 +227,8 @@ void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
         serr->ee.ee_pad = 0;
         serr->ee.ee_info = info;
         serr->ee.ee_data = 0;
-        serr->addr_offset = (u8*)&(((struct ipv6hdr*)(icmph+1))->daddr) - skb->nh.raw;
+        serr->addr_offset = (u8 *)&(((struct ipv6hdr *)(icmph + 1))->daddr) -
+                                  skb_network_header(skb);
         serr->port = port;
 
         skb->h.raw = payload;
@@ -264,7 +265,7 @@ void ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info)
         serr->ee.ee_pad = 0;
         serr->ee.ee_info = info;
         serr->ee.ee_data = 0;
-        serr->addr_offset = (u8*)&iph->daddr - skb->nh.raw;
+        serr->addr_offset = (u8 *)&iph->daddr - skb_network_header(skb);
         serr->port = fl->fl_ip_dport;
 
         skb->h.raw = skb->tail;
@@ -310,21 +311,24 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
 
         sin = (struct sockaddr_in6 *)msg->msg_name;
         if (sin) {
+                const unsigned char *nh = skb_network_header(skb);
                 sin->sin6_family = AF_INET6;
                 sin->sin6_flowinfo = 0;
                 sin->sin6_port = serr->port;
                 sin->sin6_scope_id = 0;
                 if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6) {
                         ipv6_addr_copy(&sin->sin6_addr,
-                          (struct in6_addr *)(skb->nh.raw + serr->addr_offset));
+                                  (struct in6_addr *)(nh + serr->addr_offset));
                         if (np->sndflow)
-                                sin->sin6_flowinfo = *(__be32*)(skb->nh.raw + serr->addr_offset - 24) & IPV6_FLOWINFO_MASK;
+                                sin->sin6_flowinfo =
+                                        (*(__be32 *)(nh + serr->addr_offset - 24) &
+                                         IPV6_FLOWINFO_MASK);
                         if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
                                 sin->sin6_scope_id = IP6CB(skb)->iif;
                 } else {
                         ipv6_addr_set(&sin->sin6_addr, 0, 0,
                                       htonl(0xffff),
-                                      *(__be32*)(skb->nh.raw + serr->addr_offset));
+                                      *(__be32 *)(nh + serr->addr_offset));
                 }
         }
 
@@ -382,6 +386,7 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
 {
         struct ipv6_pinfo *np = inet6_sk(sk);
         struct inet6_skb_parm *opt = IP6CB(skb);
+        unsigned char *nh = skb_network_header(skb);
 
         if (np->rxopt.bits.rxinfo) {
                 struct in6_pktinfo src_info;
@@ -401,14 +406,14 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
                 put_cmsg(msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
         }
 
-        if (np->rxopt.bits.rxflow && (*(__be32*)skb->nh.raw & IPV6_FLOWINFO_MASK)) {
-                __be32 flowinfo = *(__be32*)skb->nh.raw & IPV6_FLOWINFO_MASK;
+        if (np->rxopt.bits.rxflow && (*(__be32 *)nh & IPV6_FLOWINFO_MASK)) {
+                __be32 flowinfo = *(__be32 *)nh & IPV6_FLOWINFO_MASK;
                 put_cmsg(msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo);
         }
 
         /* HbH is allowed only once */
         if (np->rxopt.bits.hopopts && opt->hop) {
-                u8 *ptr = skb->nh.raw + opt->hop;
+                u8 *ptr = nh + opt->hop;
                 put_cmsg(msg, SOL_IPV6, IPV6_HOPOPTS, (ptr[1]+1)<<3, ptr);
         }
 
@@ -428,7 +433,7 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
 
                 while (off <= opt->lastopt) {
                         unsigned len;
-                        u8 *ptr = skb->nh.raw + off;
+                        u8 *ptr = nh + off;
 
                         switch(nexthdr) {
                         case IPPROTO_DSTOPTS:
@@ -470,19 +475,19 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
                 put_cmsg(msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim);
         }
         if (np->rxopt.bits.ohopopts && opt->hop) {
-                u8 *ptr = skb->nh.raw + opt->hop;
+                u8 *ptr = nh + opt->hop;
                 put_cmsg(msg, SOL_IPV6, IPV6_2292HOPOPTS, (ptr[1]+1)<<3, ptr);
         }
         if (np->rxopt.bits.odstopts && opt->dst0) {
-                u8 *ptr = skb->nh.raw + opt->dst0;
+                u8 *ptr = nh + opt->dst0;
                 put_cmsg(msg, SOL_IPV6, IPV6_2292DSTOPTS, (ptr[1]+1)<<3, ptr);
         }
         if (np->rxopt.bits.osrcrt && opt->srcrt) {
-                struct ipv6_rt_hdr *rthdr = (struct ipv6_rt_hdr *)(skb->nh.raw + opt->srcrt);
+                struct ipv6_rt_hdr *rthdr = (struct ipv6_rt_hdr *)(nh + opt->srcrt);
                 put_cmsg(msg, SOL_IPV6, IPV6_2292RTHDR, (rthdr->hdrlen+1) << 3, rthdr);
         }
         if (np->rxopt.bits.odstopts && opt->dst1) {
-                u8 *ptr = skb->nh.raw + opt->dst1;
+                u8 *ptr = nh + opt->dst1;
                 put_cmsg(msg, SOL_IPV6, IPV6_2292DSTOPTS, (ptr[1]+1)<<3, ptr);
         }
         return 0;
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 363e63ffecca..6e6b57ac8013 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -92,8 +92,8 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
         top_iph = (struct ipv6hdr *)__skb_push(skb, hdr_len);
         esph = (struct ipv6_esp_hdr *)skb->h.raw;
         top_iph->payload_len = htons(skb->len + alen - sizeof(*top_iph));
-        *(u8*)(trailer->tail - 1) = *skb->nh.raw;
-        *skb->nh.raw = IPPROTO_ESP;
+        *(u8 *)(trailer->tail - 1) = *skb_network_header(skb);
+        *skb_network_header(skb) = IPPROTO_ESP;
 
         esph->spi = x->id.spi;
         esph->seq_no = htonl(++x->replay.oseq);
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index fce5abde554f..9ebf120ba6d3 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -50,13 +50,14 @@
 
 int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
 {
-        int packet_len = skb->tail - skb->nh.raw;
+        const unsigned char *nh = skb_network_header(skb);
+        int packet_len = skb->tail - nh;
         struct ipv6_opt_hdr *hdr;
         int len;
 
         if (offset + 2 > packet_len)
                 goto bad;
-        hdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+        hdr = (struct ipv6_opt_hdr *)(nh + offset);
         len = ((hdr->hdrlen + 1) << 3);
 
         if (offset + len > packet_len)
@@ -66,7 +67,7 @@ int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
         len -= 2;
 
         while (len > 0) {
-                int opttype = skb->nh.raw[offset];
+                int opttype = nh[offset];
                 int optlen;
 
                 if (opttype == type)
@@ -77,7 +78,7 @@ int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
                         optlen = 1;
                         break;
                 default:
-                        optlen = skb->nh.raw[offset + 1] + 2;
+                        optlen = nh[offset + 1] + 2;
                         if (optlen > len)
                                 goto bad;
                         break;
@@ -113,7 +114,7 @@ static int ip6_tlvopt_unknown(struct sk_buff **skbp, int optoff)
 {
         struct sk_buff *skb = *skbp;
 
-        switch ((skb->nh.raw[optoff] & 0xC0) >> 6) {
+        switch ((skb_network_header(skb)[optoff] & 0xC0) >> 6) {
         case 0: /* ignore */
                 return 1;
 
@@ -141,6 +142,7 @@ static int ip6_parse_tlv(struct tlvtype_proc *procs, struct sk_buff **skbp)
 {
         struct sk_buff *skb = *skbp;
         struct tlvtype_proc *curr;
+        const unsigned char *nh = skb_network_header(skb);
         int off = skb->h.raw - skb->nh.raw;
         int len = ((skb->h.raw[1]+1)<<3);
 
@@ -151,9 +153,9 @@ static int ip6_parse_tlv(struct tlvtype_proc *procs, struct sk_buff **skbp)
         len -= 2;
 
         while (len > 0) {
-                int optlen = skb->nh.raw[off+1]+2;
+                int optlen = nh[off + 1] + 2;
 
-                switch (skb->nh.raw[off]) {
+                switch (nh[off]) {
                 case IPV6_TLV_PAD0:
                         optlen = 1;
                         break;
@@ -165,7 +167,7 @@ static int ip6_parse_tlv(struct tlvtype_proc *procs, struct sk_buff **skbp)
                         if (optlen > len)
                                 goto bad;
                         for (curr=procs; curr->type >= 0; curr++) {
-                                if (curr->type == skb->nh.raw[off]) {
+                                if (curr->type == nh[off]) {
                                         /* type specific length/alignment
                                            checks will be performed in the
                                            func(). */
@@ -211,7 +213,7 @@ static int ipv6_dest_hao(struct sk_buff **skbp, int optoff)
         opt->dsthao = opt->dst1;
         opt->dst1 = 0;
 
-        hao = (struct ipv6_destopt_hao *)(skb->nh.raw + optoff);
+        hao = (struct ipv6_destopt_hao *)(skb_network_header(skb) + optoff);
 
         if (hao->length != 16) {
                 LIMIT_NETDEBUG(
@@ -244,8 +246,9 @@ static int ipv6_dest_hao(struct sk_buff **skbp, int optoff)
 
                 /* update all variable using below by copied skbuff */
                 *skbp = skb = skb2;
-                hao = (struct ipv6_destopt_hao *)(skb2->nh.raw + optoff);
-                ipv6h = (struct ipv6hdr *)skb2->nh.raw;
+                hao = (struct ipv6_destopt_hao *)(skb_network_header(skb2) +
+                                                  optoff);
+                ipv6h = skb2->nh.ipv6h;
         }
 
         if (skb->ip_summed == CHECKSUM_COMPLETE)
@@ -406,7 +409,8 @@ static int ipv6_rthdr_rcv(struct sk_buff **skbp)
         default:
                 IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
                                  IPSTATS_MIB_INHDRERRORS);
-                icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->type) - skb->nh.raw);
+                icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+                                  (&hdr->type) - skb_network_header(skb));
                 return -1;
         }
 
@@ -443,7 +447,7 @@ looped_back:
                 skb->h.raw += (hdr->hdrlen + 1) << 3;
                 opt->dst0 = opt->dst1;
                 opt->dst1 = 0;
-                opt->nhoff = (&hdr->nexthdr) - skb->nh.raw;
+                opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);
                 return 1;
         }
 
@@ -452,7 +456,9 @@ looped_back:
                 if (hdr->hdrlen & 0x01) {
                         IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
                                          IPSTATS_MIB_INHDRERRORS);
-                        icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->hdrlen) - skb->nh.raw);
+                        icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+                                          ((&hdr->hdrlen) -
+                                           skb_network_header(skb)));
                         return -1;
                 }
                 break;
@@ -479,7 +485,9 @@ looped_back:
         if (hdr->segments_left > n) {
                 IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
                                  IPSTATS_MIB_INHDRERRORS);
-                icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->segments_left) - skb->nh.raw);
+                icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+                                  ((&hdr->segments_left) -
+                                   skb_network_header(skb)));
                 return -1;
         }
 
@@ -547,7 +555,7 @@ looped_back:
         dst_release(xchg(&skb->dst, NULL));
         ip6_route_input(skb);
         if (skb->dst->error) {
-                skb_push(skb, skb->data - skb->nh.raw);
+                skb_push(skb, skb->data - skb_network_header(skb));
                 dst_input(skb);
                 return -1;
         }
@@ -565,7 +573,7 @@ looped_back:
                 goto looped_back;
         }
 
-        skb_push(skb, skb->data - skb->nh.raw);
+        skb_push(skb, skb->data - skb_network_header(skb));
         dst_input(skb);
         return -1;
 }
@@ -656,13 +664,14 @@ EXPORT_SYMBOL_GPL(ipv6_invert_rthdr);
 static int ipv6_hop_ra(struct sk_buff **skbp, int optoff)
 {
         struct sk_buff *skb = *skbp;
+        const unsigned char *nh = skb_network_header(skb);
 
-        if (skb->nh.raw[optoff+1] == 2) {
+        if (nh[optoff + 1] == 2) {
                 IP6CB(skb)->ra = optoff;
                 return 1;
         }
         LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_ra: wrong RA length %d\n",
-                       skb->nh.raw[optoff+1]);
+                       nh[optoff + 1]);
         kfree_skb(skb);
         return 0;
 }
@@ -672,17 +681,18 @@ static int ipv6_hop_ra(struct sk_buff **skbp, int optoff)
 static int ipv6_hop_jumbo(struct sk_buff **skbp, int optoff)
 {
         struct sk_buff *skb = *skbp;
+        const unsigned char *nh = skb_network_header(skb);
         u32 pkt_len;
 
-        if (skb->nh.raw[optoff+1] != 4 || (optoff&3) != 2) {
+        if (nh[optoff + 1] != 4 || (optoff & 3) != 2) {
                 LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n",
-                               skb->nh.raw[optoff+1]);
+                               nh[optoff+1]);
                 IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
                                  IPSTATS_MIB_INHDRERRORS);
                 goto drop;
         }
 
-        pkt_len = ntohl(*(__be32*)(skb->nh.raw+optoff+2));
+        pkt_len = ntohl(*(__be32 *)(nh + optoff + 2));
         if (pkt_len <= IPV6_MAXPLEN) {
                 IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
                 icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, optoff+2);
@@ -727,7 +737,7 @@ int ipv6_parse_hopopts(struct sk_buff **skbp)
         struct inet6_skb_parm *opt = IP6CB(skb);
 
         /*
-         * skb->nh.raw is equal to skb->data, and
+         * skb_network_header(skb) is equal to skb->data, and
          * skb->h.raw - skb->nh.raw is always equal to
          * sizeof(struct ipv6hdr) by definition of
          * hop-by-hop options.
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index aa4a0a59ffac..e5293b34229f 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -284,7 +284,8 @@ static void mip6_addr_swap(struct sk_buff *skb)
         if (opt->dsthao) {
                 off = ipv6_find_tlv(skb, opt->dsthao, IPV6_TLV_HAO);
                 if (likely(off >= 0)) {
-                        hao = (struct ipv6_destopt_hao *)(skb->nh.raw + off);
+                        hao = (struct ipv6_destopt_hao *)
+                                        (skb_network_header(skb) + off);
                         ipv6_addr_copy(&tmp, &iph->saddr);
                         ipv6_addr_copy(&iph->saddr, &hao->addr);
                         ipv6_addr_copy(&hao->addr, &tmp);
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 61e7a6c8141d..aecc74da0721 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -163,7 +163,7 @@ resubmit:
         if (!pskb_pull(skb, skb->h.raw - skb->data))
                 goto discard;
         nhoff = IP6CB(skb)->nhoff;
-        nexthdr = skb->nh.raw[nhoff];
+        nexthdr = skb_network_header(skb)[nhoff];
 
         raw_sk = sk_head(&raw_v6_htable[nexthdr & (MAX_INET_PROTOS - 1)]);
         if (raw_sk && !ipv6_raw_deliver(skb, nexthdr))
@@ -181,7 +181,7 @@ resubmit:
                            indefinitely. */
                         nf_reset(skb);
 
-                        skb_postpull_rcsum(skb, skb->nh.raw,
+                        skb_postpull_rcsum(skb, skb_network_header(skb),
                                            skb->h.raw - skb->nh.raw);
                         hdr = skb->nh.ipv6h;
                         if (ipv6_addr_is_multicast(&hdr->daddr) &&
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 47d00210cba1..f1dfcc319717 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -323,10 +323,11 @@ static int ip6_forward_proxy_check(struct sk_buff *skb)
         if (nexthdr == IPPROTO_ICMPV6) {
                 struct icmp6hdr *icmp6;
 
-                if (!pskb_may_pull(skb, skb->nh.raw + offset + 1 - skb->data))
+                if (!pskb_may_pull(skb, (skb_network_header(skb) +
+                                         offset + 1 - skb->data)))
                         return 0;
 
-                icmp6 = (struct icmp6hdr *)(skb->nh.raw + offset);
+                icmp6 = (struct icmp6hdr *)(skb_network_header(skb) + offset);
 
                 switch (icmp6->icmp6_type) {
                 case NDISC_ROUTER_SOLICITATION:
@@ -392,7 +393,7 @@ int ip6_forward(struct sk_buff *skb)
          *      that different fragments will go along one path. --ANK
          */
         if (opt->ra) {
-                u8 *ptr = skb->nh.raw + opt->ra;
+                u8 *ptr = skb_network_header(skb) + opt->ra;
                 if (ip6_call_ra_chain(skb, (ptr[2]<<8) + ptr[3]))
                         return 0;
         }
@@ -527,7 +528,7 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 {
         u16 offset = sizeof(struct ipv6hdr);
         struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
-        unsigned int packet_len = skb->tail - skb->nh.raw;
+        unsigned int packet_len = skb->tail - skb_network_header(skb);
         int found_rhdr = 0;
         *nexthdr = &skb->nh.ipv6h->nexthdr;
 
@@ -554,7 +555,8 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 
                 offset += ipv6_optlen(exthdr);
                 *nexthdr = &exthdr->nexthdr;
-                exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+                exthdr = (struct ipv6_opt_hdr *)(skb_network_header(skb) +
+                                                 offset);
         }
 
         return offset;
@@ -620,7 +622,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                 /* BUILD HEADER */
 
                 *prevhdr = NEXTHDR_FRAGMENT;
-                tmp_hdr = kmemdup(skb->nh.raw, hlen, GFP_ATOMIC);
+                tmp_hdr = kmemdup(skb_network_header(skb), hlen, GFP_ATOMIC);
                 if (!tmp_hdr) {
                         IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
                         return -ENOMEM;
@@ -630,7 +632,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                 fh = (struct frag_hdr*)__skb_push(skb, sizeof(struct frag_hdr));
                 __skb_push(skb, hlen);
                 skb_reset_network_header(skb);
-                memcpy(skb->nh.raw, tmp_hdr, hlen);
+                memcpy(skb_network_header(skb), tmp_hdr, hlen);
 
                 ipv6_select_ident(skb, fh);
                 fh->nexthdr = nexthdr;
@@ -654,7 +656,8 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                                 fh = (struct frag_hdr*)__skb_push(frag, sizeof(struct frag_hdr));
                                 __skb_push(frag, hlen);
                                 skb_reset_network_header(frag);
-                                memcpy(frag->nh.raw, tmp_hdr, hlen);
+                                memcpy(skb_network_header(frag), tmp_hdr,
+                                       hlen);
                                 offset += skb->len - hlen - sizeof(struct frag_hdr);
                                 fh->nexthdr = nexthdr;
                                 fh->reserved = 0;
@@ -753,7 +756,7 @@ slow_path:
                 /*
                  *      Copy the packet header into the new buffer.
                  */
-                memcpy(frag->nh.raw, skb->data, hlen);
+                memcpy(skb_network_header(frag), skb->data, hlen);
 
                 /*
                  *      Build fragment header.
@@ -1329,7 +1332,7 @@ int ip6_push_pending_frames(struct sock *sk)
         tail_skb = &(skb_shinfo(skb)->frag_list);
 
         /* move skb->data to ip header from ext header */
-        if (skb->data < skb->nh.raw)
+        if (skb->data < skb_network_header(skb))
                 __skb_pull(skb, skb_network_offset(skb));
         while ((tmp_skb = __skb_dequeue(&sk->sk_write_queue)) != NULL) {
                 __skb_pull(tmp_skb, skb->h.raw - skb->nh.raw);
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index a1e4f39c6793..aafbdfa8d785 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -995,9 +995,10 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
             !ip6_tnl_xmit_ctl(t) || ip6_tnl_addr_conflict(t, ipv6h))
                 return -1;
 
-        if ((offset = parse_tlv_tnl_enc_lim(skb, skb->nh.raw)) > 0) {
+        offset = parse_tlv_tnl_enc_lim(skb, skb_network_header(skb));
+        if (offset > 0) {
                 struct ipv6_tlv_tnl_enc_lim *tel;
-                tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->nh.raw[offset];
+                tel = (struct ipv6_tlv_tnl_enc_lim *)&skb_network_header(skb)[offset];
                 if (tel->encap_limit == 0) {
                         icmpv6_send(skb, ICMPV6_PARAMPROB,
                                     ICMPV6_HDR_FIELD, offset + 2, skb->dev);
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 5724ba9f75de..3e71d1691b7d 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -166,10 +166,10 @@ static int ipcomp6_output(struct xfrm_state *x, struct sk_buff *skb)
         top_iph->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
 
         ipch = (struct ipv6_comp_hdr *)start;
-        ipch->nexthdr = *skb->nh.raw;
+        ipch->nexthdr = *skb_network_header(skb);
         ipch->flags = 0;
         ipch->cpi = htons((u16 )ntohl(x->id.spi));
-        *skb->nh.raw = IPPROTO_COMP;
+        *skb_network_header(skb) = IPPROTO_COMP;
 
 out_ok:
         return 0;
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index 0afcabdd8ed6..bb4033553f3b 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -99,14 +99,16 @@ int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
         if (mh->ip6mh_hdrlen < mip6_mh_len(mh->ip6mh_type)) {
                 LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH message too short: %d vs >=%d\n",
                                mh->ip6mh_hdrlen, mip6_mh_len(mh->ip6mh_type));
-                mip6_param_prob(skb, 0, (&mh->ip6mh_hdrlen) - skb->nh.raw);
+                mip6_param_prob(skb, 0, ((&mh->ip6mh_hdrlen) -
+                                         skb_network_header(skb)));
                 return -1;
         }
 
         if (mh->ip6mh_proto != IPPROTO_NONE) {
                 LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH invalid payload proto = %d\n",
                                mh->ip6mh_proto);
-                mip6_param_prob(skb, 0, (&mh->ip6mh_proto) - skb->nh.raw);
+                mip6_param_prob(skb, 0, ((&mh->ip6mh_proto) -
+                                         skb_network_header(skb)));
                 return -1;
         }
 
@@ -152,8 +154,8 @@ static int mip6_destopt_output(struct xfrm_state *x, struct sk_buff *skb)
         iph = (struct ipv6hdr *)skb->data;
         iph->payload_len = htons(skb->len - sizeof(*iph));
 
-        nexthdr = *skb->nh.raw;
-        *skb->nh.raw = IPPROTO_DSTOPTS;
+        nexthdr = *skb_network_header(skb);
+        *skb_network_header(skb) = IPPROTO_DSTOPTS;
 
         dstopt = (struct ipv6_destopt_hdr *)skb->h.raw;
         dstopt->nexthdr = nexthdr;
@@ -215,7 +217,8 @@ static int mip6_destopt_reject(struct xfrm_state *x, struct sk_buff *skb, struct
         if (likely(opt->dsthao)) {
                 offset = ipv6_find_tlv(skb, opt->dsthao, IPV6_TLV_HAO);
                 if (likely(offset >= 0))
-                        hao = (struct ipv6_destopt_hao *)(skb->nh.raw + offset);
+                        hao = (struct ipv6_destopt_hao *)
+                                        (skb_network_header(skb) + offset);
         }
 
         skb_get_timestamp(skb, &stamp);
@@ -254,7 +257,8 @@ static int mip6_destopt_offset(struct xfrm_state *x, struct sk_buff *skb,
 {
         u16 offset = sizeof(struct ipv6hdr);
         struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
-        unsigned int packet_len = skb->tail - skb->nh.raw;
+        const unsigned char *nh = skb_network_header(skb);
+        unsigned int packet_len = skb->tail - nh;
         int found_rhdr = 0;
 
         *nexthdr = &skb->nh.ipv6h->nexthdr;
@@ -288,7 +292,7 @@ static int mip6_destopt_offset(struct xfrm_state *x, struct sk_buff *skb,
 
                 offset += ipv6_optlen(exthdr);
                 *nexthdr = &exthdr->nexthdr;
-                exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+                exthdr = (struct ipv6_opt_hdr *)(nh + offset);
         }
 
         return offset;
@@ -361,8 +365,8 @@ static int mip6_rthdr_output(struct xfrm_state *x, struct sk_buff *skb)
         iph = (struct ipv6hdr *)skb->data;
         iph->payload_len = htons(skb->len - sizeof(*iph));
 
-        nexthdr = *skb->nh.raw;
-        *skb->nh.raw = IPPROTO_ROUTING;
+        nexthdr = *skb_network_header(skb);
+        *skb_network_header(skb) = IPPROTO_ROUTING;
 
         rt2 = (struct rt2_hdr *)skb->h.raw;
         rt2->rt_hdr.nexthdr = nexthdr;
@@ -384,7 +388,8 @@ static int mip6_rthdr_offset(struct xfrm_state *x, struct sk_buff *skb,
 {
         u16 offset = sizeof(struct ipv6hdr);
         struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
-        unsigned int packet_len = skb->tail - skb->nh.raw;
+        const unsigned char *nh = skb_network_header(skb);
+        unsigned int packet_len = skb->tail - nh;
         int found_rhdr = 0;
 
         *nexthdr = &skb->nh.ipv6h->nexthdr;
@@ -397,7 +402,7 @@ static int mip6_rthdr_offset(struct xfrm_state *x, struct sk_buff *skb,
                 case NEXTHDR_ROUTING:
                         if (offset + 3 <= packet_len) {
                                 struct ipv6_rt_hdr *rt;
-                                rt = (struct ipv6_rt_hdr *)(skb->nh.raw + offset);
+                                rt = (struct ipv6_rt_hdr *)(nh + offset);
                                 if (rt->type != 0)
                                         return offset;
                         }
@@ -417,7 +422,7 @@ static int mip6_rthdr_offset(struct xfrm_state *x, struct sk_buff *skb,
 
                 offset += ipv6_optlen(exthdr);
                 *nexthdr = &exthdr->nexthdr;
-                exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+                exthdr = (struct ipv6_opt_hdr *)(nh + offset);
         }
 
         return offset;
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index c311b9a12ca6..bc1d09584008 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -408,11 +408,12 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
                 return -1;
         }
 
-        if (skb->ip_summed == CHECKSUM_COMPLETE)
+        if (skb->ip_summed == CHECKSUM_COMPLETE) {
+                const unsigned char *nh = skb_network_header(skb);
                 skb->csum = csum_sub(skb->csum,
-                                     csum_partial(skb->nh.raw,
-                                                  (u8*)(fhdr + 1) - skb->nh.raw,
+                                     csum_partial(nh, (u8 *)(fhdr + 1) - nh,
                                                   0));
+        }
 
         /* Is this the final fragment? */
         if (!(fhdr->frag_off & htons(IP6_MF))) {
@@ -583,7 +584,9 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
         BUG_TRAP(NFCT_FRAG6_CB(head)->offset == 0);
 
         /* Unfragmented part is taken from the first segment. */
-        payload_len = (head->data - head->nh.raw) - sizeof(struct ipv6hdr) + fq->len - sizeof(struct frag_hdr);
+        payload_len = ((head->data - skb_network_header(head)) -
+                       sizeof(struct ipv6hdr) + fq->len -
+                       sizeof(struct frag_hdr));
         if (payload_len > IPV6_MAXPLEN) {
                 DEBUGP("payload len is too large.\n");
                 goto out_oversize;
@@ -624,7 +627,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
 
         /* We have to remove fragment header from datagram and to relocate
          * header in order to calculate ICV correctly. */
-        head->nh.raw[fq->nhoffset] = head->h.raw[0];
+        skb_network_header(head)[fq->nhoffset] = head->h.raw[0];
         memmove(head->head + sizeof(struct frag_hdr), head->head,
                 (head->data - head->head) - sizeof(struct frag_hdr));
         head->mac.raw += sizeof(struct frag_hdr);
@@ -632,7 +635,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
 
         skb_shinfo(head)->frag_list = head->next;
         head->h.raw = head->data;
-        skb_push(head, head->data - head->nh.raw);
+        skb_push(head, head->data - skb_network_header(head));
         atomic_sub(head->truesize, &nf_ct_frag6_mem);
 
         for (fp=head->next; fp; fp = fp->next) {
@@ -653,7 +656,9 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
 
         /* Yes, and fold redundant checksum back. 8) */
         if (head->ip_summed == CHECKSUM_COMPLETE)
-                head->csum = csum_partial(head->nh.raw, head->h.raw-head->nh.raw, head->csum);
+                head->csum = csum_partial(skb_network_header(head),
+                                          head->h.raw - head->nh.raw,
+                                          head->csum);
 
         fq->fragments = NULL;
 
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 5f26645195dc..9b2bcde73f19 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -361,7 +361,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
                 skb->ip_summed = CHECKSUM_UNNECESSARY;
 
         if (skb->ip_summed == CHECKSUM_COMPLETE) {
-                skb_postpull_rcsum(skb, skb->nh.raw,
+                skb_postpull_rcsum(skb, skb_network_header(skb),
                                    skb->h.raw - skb->nh.raw);
                 if (!csum_ipv6_magic(&skb->nh.ipv6h->saddr,
                                      &skb->nh.ipv6h->daddr,
@@ -488,7 +488,8 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi *fl,
                 goto out;
 
         offset = rp->offset;
-        total_len = inet_sk(sk)->cork.length - (skb->nh.raw - skb->data);
+        total_len = inet_sk(sk)->cork.length - (skb_network_header(skb) -
+                                                skb->data);
         if (offset >= total_len - 1) {
                 err = -EINVAL;
                 ip6_flush_pending_frames(sk);
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 1dde449379fb..f85e49acb91a 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -436,13 +436,18 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
         if ((unsigned int)end > IPV6_MAXPLEN) {
                 IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
                                  IPSTATS_MIB_INHDRERRORS);
-                icmpv6_param_prob(skb,ICMPV6_HDR_FIELD, (u8*)&fhdr->frag_off - skb->nh.raw);
+                icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+                                  ((u8 *)&fhdr->frag_off -
+                                   skb_network_header(skb)));
                 return;
         }
 
-        if (skb->ip_summed == CHECKSUM_COMPLETE)
+        if (skb->ip_summed == CHECKSUM_COMPLETE) {
+                const unsigned char *nh = skb_network_header(skb);
                 skb->csum = csum_sub(skb->csum,
-                                     csum_partial(skb->nh.raw, (u8*)(fhdr+1)-skb->nh.raw, 0));
+                                     csum_partial(nh, (u8 *)(fhdr + 1) - nh,
+                                                  0));
+        }
 
         /* Is this the final fragment? */
         if (!(fhdr->frag_off & htons(IP6_MF))) {
@@ -605,7 +610,9 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
         BUG_TRAP(FRAG6_CB(head)->offset == 0);
 
         /* Unfragmented part is taken from the first segment. */
-        payload_len = (head->data - head->nh.raw) - sizeof(struct ipv6hdr) + fq->len - sizeof(struct frag_hdr);
+        payload_len = ((head->data - skb_network_header(head)) -
+                       sizeof(struct ipv6hdr) + fq->len -
+                       sizeof(struct frag_hdr));
         if (payload_len > IPV6_MAXPLEN)
                 goto out_oversize;
 
@@ -639,7 +646,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
         /* We have to remove fragment header from datagram and to relocate
          * header in order to calculate ICV correctly. */
         nhoff = fq->nhoffset;
-        head->nh.raw[nhoff] = head->h.raw[0];
+        skb_network_header(head)[nhoff] = head->h.raw[0];
         memmove(head->head + sizeof(struct frag_hdr), head->head,
                 (head->data - head->head) - sizeof(struct frag_hdr));
         head->mac.raw += sizeof(struct frag_hdr);
@@ -647,7 +654,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
 
         skb_shinfo(head)->frag_list = head->next;
         head->h.raw = head->data;
-        skb_push(head, head->data - head->nh.raw);
+        skb_push(head, head->data - skb_network_header(head));
         atomic_sub(head->truesize, &ip6_frag_mem);
 
         for (fp=head->next; fp; fp = fp->next) {
@@ -671,7 +678,9 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
 
         /* Yes, and fold redundant checksum back. 8) */
         if (head->ip_summed == CHECKSUM_COMPLETE)
-                head->csum = csum_partial(head->nh.raw, head->h.raw-head->nh.raw, head->csum);
+                head->csum = csum_partial(skb_network_header(head),
+                                          head->h.raw - head->nh.raw,
+                                          head->csum);
 
         rcu_read_lock();
         IP6_INC_STATS_BH(__in6_dev_get(dev), IPSTATS_MIB_REASMOKS);
@@ -725,7 +734,7 @@ static int ipv6_frag_rcv(struct sk_buff **skbp)
                 skb->h.raw += sizeof(struct frag_hdr);
                 IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMOKS);
 
-                IP6CB(skb)->nhoff = (u8*)fhdr - skb->nh.raw;
+                IP6CB(skb)->nhoff = (u8 *)fhdr - skb_network_header(skb);
                 return 1;
         }
 
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 92f99927d12d..80a52ab1e384 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -486,7 +486,9 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
                         struct sk_buff *pktopts = treq->pktopts;
                         struct inet6_skb_parm *rxopt = IP6CB(pktopts);
                         if (rxopt->srcrt)
-                                opt = ipv6_invert_rthdr(sk, (struct ipv6_rt_hdr*)(pktopts->nh.raw + rxopt->srcrt));
+                                opt = ipv6_invert_rthdr(sk,
+                          (struct ipv6_rt_hdr *)(skb_network_header(pktopts) +
+                                                 rxopt->srcrt));
                 }
 
                 if (opt && opt->srcrt) {
@@ -1389,7 +1391,9 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
             opt == NULL && treq->pktopts) {
                 struct inet6_skb_parm *rxopt = IP6CB(treq->pktopts);
                 if (rxopt->srcrt)
-                        opt = ipv6_invert_rthdr(sk, (struct ipv6_rt_hdr *)(treq->pktopts->nh.raw + rxopt->srcrt));
+                        opt = ipv6_invert_rthdr(sk,
+                   (struct ipv6_rt_hdr *)(skb_network_header(treq->pktopts) +
+                                          rxopt->srcrt));
         }
 
         if (dst == NULL) {
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index 33a1b9200431..5c929f886129 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -28,7 +28,7 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi)
         unsigned int nhoff;
 
         nhoff = IP6CB(skb)->nhoff;
-        nexthdr = skb->nh.raw[nhoff];
+        nexthdr = skb_network_header(skb)[nhoff];
 
         seq = 0;
         if (!spi && (err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0)
@@ -58,7 +58,7 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi)
                 if (nexthdr <= 0)
                         goto drop_unlock;
 
-                skb->nh.raw[nhoff] = nexthdr;
+                skb_network_header(skb)[nhoff] = nexthdr;
 
                 if (x->props.replay_window)
                         xfrm_replay_advance(x, seq);
@@ -113,7 +113,7 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi)
         } else {
 #ifdef CONFIG_NETFILTER
                 skb->nh.ipv6h->payload_len = htons(skb->len);
-                __skb_push(skb, skb->data - skb->nh.raw);
+                __skb_push(skb, skb->data - skb_network_header(skb));
 
                 NF_HOOK(PF_INET6, NF_IP6_PRE_ROUTING, skb, skb->dev, NULL,
                         ip6_rcv_finish);
diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c
index c015bfde2b1c..247e2d5d2acf 100644
--- a/net/ipv6/xfrm6_mode_beet.c
+++ b/net/ipv6/xfrm6_mode_beet.c
@@ -67,7 +67,7 @@ static int xfrm6_beet_input(struct xfrm_state *x, struct sk_buff *skb)
                 goto out;
 
         skb_push(skb, size);
-        memmove(skb->data, skb->nh.raw, size);
+        memmove(skb->data, skb_network_header(skb), size);
         skb_reset_network_header(skb);
 
         old_mac = skb_mac_header(skb);
diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c
index 3a4b39b12bad..ace0bbf4f25d 100644
--- a/net/ipv6/xfrm6_mode_transport.c
+++ b/net/ipv6/xfrm6_mode_transport.c
@@ -53,8 +53,10 @@ static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb)
 {
         int ihl = skb->data - skb->h.raw;
 
-        if (skb->h.raw != skb->nh.raw)
-                skb->nh.raw = memmove(skb->h.raw, skb->nh.raw, ihl);
+        if (skb->h.raw != skb->nh.raw) {
+                memmove(skb->h.raw, skb_network_header(skb), ihl);
+                skb->nh.raw = skb->h.raw;
+        }
         skb->nh.ipv6h->payload_len = htons(skb->len + ihl -
                                            sizeof(struct ipv6hdr));
         skb->h.raw = skb->data;
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index 8ce5ef2d0b1c..498f17b5c42f 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -87,9 +87,10 @@ 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;
@@ -98,7 +99,8 @@ 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);
                 if (!(x->props.flags & XFRM_STATE_NOECN))
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index d8a585bd2cb4..cb5a723d4cb4 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -273,14 +273,16 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl)
         u16 offset = skb->h.raw - skb->nh.raw;
         struct ipv6hdr *hdr = skb->nh.ipv6h;
         struct ipv6_opt_hdr *exthdr;
-        u8 nexthdr = skb->nh.raw[IP6CB(skb)->nhoff];
+        const unsigned char *nh = skb_network_header(skb);
+        u8 nexthdr = nh[IP6CB(skb)->nhoff];
 
         memset(fl, 0, sizeof(struct flowi));
         ipv6_addr_copy(&fl->fl6_dst, &hdr->daddr);
         ipv6_addr_copy(&fl->fl6_src, &hdr->saddr);
 
-        while (pskb_may_pull(skb, skb->nh.raw + offset + 1 - skb->data)) {
-                exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+        while (pskb_may_pull(skb, nh + offset + 1 - skb->data)) {
+                nh = skb_network_header(skb);
+                exthdr = (struct ipv6_opt_hdr *)(nh + offset);
 
                 switch (nexthdr) {
                 case NEXTHDR_ROUTING:
@@ -288,7 +290,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl)
                 case NEXTHDR_DEST:
                         offset += ipv6_optlen(exthdr);
                         nexthdr = exthdr->nexthdr;
-                        exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+                        exthdr = (struct ipv6_opt_hdr *)(nh + offset);
                         break;
 
                 case IPPROTO_UDP:
@@ -296,7 +298,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl)
                 case IPPROTO_TCP:
                 case IPPROTO_SCTP:
                 case IPPROTO_DCCP:
-                        if (pskb_may_pull(skb, skb->nh.raw + offset + 4 - skb->data)) {
+                        if (pskb_may_pull(skb, nh + offset + 4 - skb->data)) {
                                 __be16 *ports = (__be16 *)exthdr;
 
                                 fl->fl_ip_sport = ports[0];
@@ -306,7 +308,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl)
                         return;
 
                 case IPPROTO_ICMPV6:
-                        if (pskb_may_pull(skb, skb->nh.raw + offset + 2 - skb->data)) {
+                        if (pskb_may_pull(skb, nh + offset + 2 - skb->data)) {
                                 u8 *icmp = (u8 *)exthdr;
 
                                 fl->fl_icmp_type = icmp[0];
@@ -317,7 +319,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl)
 
 #ifdef CONFIG_IPV6_MIP6
                 case IPPROTO_MH:
-                        if (pskb_may_pull(skb, skb->nh.raw + offset + 3 - skb->data)) {
+                        if (pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
                                 struct ip6_mh *mh;
                                 mh = (struct ip6_mh *)exthdr;
 
diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index db7e38c08de2..afc0c60e19d5 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -54,7 +54,7 @@ tcpmss_mangle_packet(struct sk_buff **pskb,
                 return -1;
 
         tcplen = (*pskb)->len - tcphoff;
-        tcph = (struct tcphdr *)((*pskb)->nh.raw + tcphoff);
+        tcph = (struct tcphdr *)(skb_network_header(*pskb) + tcphoff);
 
         /* Since it passed flags test in tcp match, we know it is is
            not a fragment, and has data >= tcp header length.  SYN
@@ -113,7 +113,7 @@ tcpmss_mangle_packet(struct sk_buff **pskb,
                         return -1;
                 kfree_skb(*pskb);
                 *pskb = newskb;
-                tcph = (struct tcphdr *)((*pskb)->nh.raw + tcphoff);
+                tcph = (struct tcphdr *)(skb_network_header(*pskb) + tcphoff);
         }
 
         skb_put((*pskb), TCPOLEN_MSS);
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 3d6a2fcc9ce4..20813eee8af4 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -136,7 +136,7 @@ static int tcf_pedit(struct sk_buff *skb, struct tc_action *a,
                 }
         }
 
-        pptr = skb->nh.raw;
+        pptr = skb_network_header(skb);
 
         spin_lock(&p->tcf_lock);
 
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 0bcb16928d25..695b34051b9f 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -119,7 +119,7 @@ static int u32_classify(struct sk_buff *skb, struct tcf_proto *tp, struct tcf_re
         } stack[TC_U32_MAXDEPTH];
 
         struct tc_u_hnode *ht = (struct tc_u_hnode*)tp->root;
-        u8 *ptr = skb->nh.raw;
+        u8 *ptr = skb_network_header(skb);
         struct tc_u_knode *n;
         int sdepth = 0;
         int off2 = 0;
diff --git a/net/sched/em_u32.c b/net/sched/em_u32.c
index cd0600c67969..0a2a7fe08de3 100644
--- a/net/sched/em_u32.c
+++ b/net/sched/em_u32.c
@@ -22,7 +22,7 @@ static int em_u32_match(struct sk_buff *skb, struct tcf_ematch *em,
                         struct tcf_pkt_info *info)
 {
         struct tc_u32_key *key = (struct tc_u32_key *) em->data;
-        unsigned char *ptr = skb->nh.raw;
+        const unsigned char *ptr = skb_network_header(skb);
 
         if (info) {
                 if (info->ptr)