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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 /include
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 'include')
-rw-r--r--include/linux/dccp.h6
-rw-r--r--include/linux/skbuff.h5
2 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 1cb054bd93f..1f4df61735f 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -265,9 +265,9 @@ static inline struct dccp_hdr *dccp_hdr(const struct sk_buff *skb)
static inline struct dccp_hdr *dccp_zeroed_hdr(struct sk_buff *skb, int headlen)
{
- skb->h.raw = skb_push(skb, headlen);
- memset(skb->h.raw, 0, headlen);
- return dccp_hdr(skb);
+ skb_push(skb, headlen);
+ skb_reset_transport_header(skb);
+ return memset(skb->h.raw, 0, headlen);
}
static inline struct dccp_hdr_ext *dccp_hdrx(const struct sk_buff *skb)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 31806a7ce40..7c1f1756e48 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -957,6 +957,11 @@ static inline void skb_reserve(struct sk_buff *skb, int len)
skb->tail += len;
}
+static inline void skb_reset_transport_header(struct sk_buff *skb)
+{
+ skb->h.raw = skb->data;
+}
+
static inline unsigned char *skb_network_header(const struct sk_buff *skb)
{
return skb->nh.raw;