[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, 6 insertions, 13 deletions

diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index d1102455668d..fe7f46c4dbff 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -138,16 +138,10 @@ static int
 ipv6_prepare(struct sk_buff **pskb, unsigned int hooknum, unsigned int *dataoff,
 	     u_int8_t *protonum)
 {
-	unsigned int extoff;
-	unsigned char pnum;
-	int protoff;
-
-	extoff = (u8*)((*pskb)->nh.ipv6h + 1) - (*pskb)->data;
-	pnum = (*pskb)->nh.ipv6h->nexthdr;
-
-	protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
-					 (*pskb)->len - extoff);
-
+	unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data;
+	unsigned char pnum = ipv6_hdr(*pskb)->nexthdr;
+	int protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
+					     (*pskb)->len - extoff);
 	/*
 	 * (protoff == (*pskb)->len) mean that the packet doesn't have no data
 	 * except of IPv6 & ext headers. but it's tracked anyway. - YK
@@ -179,9 +173,8 @@ static unsigned int ipv6_confirm(unsigned int hooknum,
 	struct nf_conn_help *help;
 	enum ip_conntrack_info ctinfo;
 	unsigned int ret, protoff;
-	unsigned int extoff = (u8*)((*pskb)->nh.ipv6h + 1)
-			      - (*pskb)->data;
-	unsigned char pnum = (*pskb)->nh.ipv6h->nexthdr;
+	unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data;
+	unsigned char pnum = ipv6_hdr(*pskb)->nexthdr;
 
 
 	/* This is where we call the helper: as the packet goes out. */