[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h

Now the skb->nh union has just one member, .raw, i.e. it is just like the
skb->mac union, strange, no? I'm just leaving it like that till the transport
layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or
->mac_header_offset?), ditto for ->{h,nh}.

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

1 files changed, 5 insertions, 7 deletions

diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index f85e49acb91a..156a37fe3ff3 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -430,8 +430,8 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
                 goto err;
 
         offset = ntohs(fhdr->frag_off) & ~0x7;
-        end = offset + (ntohs(skb->nh.ipv6h->payload_len) -
-                        ((u8 *) (fhdr + 1) - (u8 *) (skb->nh.ipv6h + 1)));
+        end = offset + (ntohs(ipv6_hdr(skb)->payload_len) -
+                        ((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1)));
 
         if ((unsigned int)end > IPV6_MAXPLEN) {
                 IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
@@ -671,7 +671,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
         head->next = NULL;
         head->dev = dev;
         head->tstamp = fq->stamp;
-        head->nh.ipv6h->payload_len = htons(payload_len);
+        ipv6_hdr(head)->payload_len = htons(payload_len);
         IP6CB(head)->nhoff = nhoff;
 
         *skb_in = head;
@@ -708,9 +708,7 @@ static int ipv6_frag_rcv(struct sk_buff **skbp)
         struct net_device *dev = skb->dev;
         struct frag_hdr *fhdr;
         struct frag_queue *fq;
-        struct ipv6hdr *hdr;
-
-        hdr = skb->nh.ipv6h;
+        struct ipv6hdr *hdr = ipv6_hdr(skb);
 
         IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMREQDS);
 
@@ -726,7 +724,7 @@ static int ipv6_frag_rcv(struct sk_buff **skbp)
                 return -1;
         }
 
-        hdr = skb->nh.ipv6h;
+        hdr = ipv6_hdr(skb);
         fhdr = (struct frag_hdr *)skb->h.raw;
 
         if (!(fhdr->frag_off & htons(0xFFF9))) {