[SK_BUFF]: Introduce skb_reset_network_header(skb)
For the common, open coded 'skb->nh.raw = skb->data' operation, so that we can
later turn skb->nh.raw into a offset, reducing the size of struct sk_buff in
64bit land while possibly keeping it as a pointer on 32bit.
This one touches just the most simple case, next will handle the slightly more
"complex" cases.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index a5f4562..4406546 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -735,7 +735,7 @@
ip6_copy_metadata(frag, skb);
skb_reserve(frag, LL_RESERVED_SPACE(rt->u.dst.dev));
skb_put(frag, len + hlen + sizeof(struct frag_hdr));
- frag->nh.raw = frag->data;
+ skb_reset_network_header(frag);
fh = (struct frag_hdr*)(frag->data + hlen);
frag->h.raw = frag->data + hlen + sizeof(struct frag_hdr);
@@ -976,7 +976,7 @@
skb_put(skb,fragheaderlen + transhdrlen);
/* initialize network header pointer */
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
/* initialize protocol header pointer */
skb->h.raw = skb->data + fragheaderlen;