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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-03-13 13:06:52 -0300
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:25:15 -0700
commitbadff6d01a8589a1c828b0bf118903ca38627f4e (patch)
tree89611d7058c612085c58dfb9913ee30ddf04b604 /net/ipv6
parent0660e03f6b18f19b6bbafe7583265a51b90daf36 (diff)
[SK_BUFF]: Introduce skb_reset_transport_header(skb)
For the common, open coded 'skb->h.raw = skb->data' operation, so that we can later turn skb->h.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 cases: skb->h.raw = skb->data; skb->h.raw = {skb_push|[__]skb_pull}() The next ones 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>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ip6_input.c2
-rw-r--r--net/ipv6/ip6_output.c8
-rw-r--r--net/ipv6/ipv6_sockglue.c4
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c2
-rw-r--r--net/ipv6/reassembly.c2
-rw-r--r--net/ipv6/xfrm6_mode_transport.c2
6 files changed, 10 insertions, 10 deletions
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 9c3c787a21c..2dd32a2ca05 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -101,7 +101,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
if (hdr->version != 6)
goto err;
- skb->h.raw = (u8 *)(hdr + 1);
+ skb->h.raw = skb->nh.raw + sizeof(*hdr);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
pkt_len = ntohs(hdr->payload_len);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 1900c622686..0f4434eff66 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -654,7 +654,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
* before previous one went down. */
if (frag) {
frag->ip_summed = CHECKSUM_NONE;
- frag->h.raw = frag->data;
+ skb_reset_transport_header(frag);
fh = (struct frag_hdr*)__skb_push(frag, sizeof(struct frag_hdr));
__skb_push(frag, hlen);
skb_reset_network_header(frag);
@@ -747,8 +747,8 @@ slow_path:
skb_reserve(frag, LL_RESERVED_SPACE(rt->u.dst.dev));
skb_put(frag, len + hlen + sizeof(struct frag_hdr));
skb_reset_network_header(frag);
- fh = (struct frag_hdr*)(frag->data + hlen);
- frag->h.raw = frag->data + hlen + sizeof(struct frag_hdr);
+ fh = (struct frag_hdr *)(skb_network_header(frag) + hlen);
+ frag->h.raw = frag->nh.raw + hlen + sizeof(struct frag_hdr);
/*
* Charge the memory for the fragment to any owner
@@ -991,7 +991,7 @@ static inline int ip6_ufo_append_data(struct sock *sk,
skb_reset_network_header(skb);
/* initialize protocol header pointer */
- skb->h.raw = skb->data + fragheaderlen;
+ skb->h.raw = skb->nh.raw + fragheaderlen;
skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum = 0;
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index d16e0fd2cd8..da930fa089c 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -108,7 +108,7 @@ static int ipv6_gso_send_check(struct sk_buff *skb)
rcu_read_lock();
ops = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
if (likely(ops && ops->gso_send_check)) {
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
err = ops->gso_send_check(skb);
}
rcu_read_unlock();
@@ -144,7 +144,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
rcu_read_lock();
ops = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
if (likely(ops && ops->gso_segment)) {
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
segs = ops->gso_segment(skb, features);
}
rcu_read_unlock();
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index d3fbb1f1caf..75138cf1fa6 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -634,7 +634,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
head->nh.raw += sizeof(struct frag_hdr);
skb_shinfo(head)->frag_list = head->next;
- head->h.raw = head->data;
+ skb_reset_transport_header(head);
skb_push(head, head->data - skb_network_header(head));
atomic_sub(head->truesize, &nf_ct_frag6_mem);
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 156a37fe3ff..2594f0fb290 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -653,7 +653,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
head->nh.raw += sizeof(struct frag_hdr);
skb_shinfo(head)->frag_list = head->next;
- head->h.raw = head->data;
+ skb_reset_transport_header(head);
skb_push(head, head->data - skb_network_header(head));
atomic_sub(head->truesize, &ip6_frag_mem);
diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c
index 358b60d9d91..cae6cacd58c 100644
--- a/net/ipv6/xfrm6_mode_transport.c
+++ b/net/ipv6/xfrm6_mode_transport.c
@@ -59,7 +59,7 @@ static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb)
}
ipv6_hdr(skb)->payload_len = htons(skb->len + ihl -
sizeof(struct ipv6hdr));
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
return 0;
}