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[SK_BUFF]: Introduce skb_reset_network_header(skb)

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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>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-04-10 20:45:18 -07:00
committed by David S. Miller
parent 57effc70a5
commit c1d2bbe1cd
47 changed files with 78 additions and 68 deletions
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4
net/decnet/dn_dev.c
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@@ -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);

6
net/decnet/dn_neigh.c
View File

@@ -261,7 +261,7 @@ static int dn_long_output(struct sk_buff *skb)
lp->s_class = 0;
lp->pt = 0;
skb->nh.raw = skb->data;
skb_reset_network_header(skb);
return NF_HOOK(PF_DECnet, NF_DN_POST_ROUTING, skb, NULL, neigh->dev, dn_neigh_output_packet);
}
@@ -300,7 +300,7 @@ static int dn_short_output(struct sk_buff *skb)
sp->srcnode = cb->src;
sp->forward = cb->hops & 0x3f;
skb->nh.raw = skb->data;
skb_reset_network_header(skb);
return NF_HOOK(PF_DECnet, NF_DN_POST_ROUTING, skb, NULL, neigh->dev, dn_neigh_output_packet);
}
@@ -342,7 +342,7 @@ static int dn_phase3_output(struct sk_buff *skb)
sp->srcnode = cb->src & dn_htons(0x03ff);
sp->forward = cb->hops & 0x3f;
skb->nh.raw = skb->data;
skb_reset_network_header(skb);
return NF_HOOK(PF_DECnet, NF_DN_POST_ROUTING, skb, NULL, neigh->dev, dn_neigh_output_packet);
}

2
net/decnet/dn_route.c
View File

@@ -615,7 +615,7 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type
flags = *skb->data;
}
skb->nh.raw = skb->data;
skb_reset_network_header(skb);
/*
* Weed out future version DECnet