[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>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 060d725e2942..95871a669dc4 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -913,7 +913,7 @@ static void dn_send_endnode_hello(struct net_device *dev, struct dn_ifaddr *ifa)
         pktlen = (__le16 *)skb_push(skb,2);
         *pktlen = dn_htons(skb->len - 2);
 
-        skb->nh.raw = skb->data;
+        skb_reset_network_header(skb);
 
         dn_rt_finish_output(skb, dn_rt_all_rt_mcast, msg->id);
 }
@@ -1005,7 +1005,7 @@ static void dn_send_router_hello(struct net_device *dev, struct dn_ifaddr *ifa)
         pktlen = (__le16 *)skb_push(skb, 2);
         *pktlen = dn_htons(skb->len - 2);
 
-        skb->nh.raw = skb->data;
+        skb_reset_network_header(skb);
 
         if (dn_am_i_a_router(dn, dn_db, ifa)) {
                 struct sk_buff *skb2 = skb_copy(skb, GFP_ATOMIC);