[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>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-03-13 13:06:52 -03:00
committed by David S. Miller
parent 0660e03f6b
commit badff6d01a
49 changed files with 82 additions and 73 deletions

View File

@ -1631,8 +1631,8 @@ static int ax25_recvmsg(struct kiocb *iocb, struct socket *sock,
if (!ax25_sk(sk)->pidincl)
skb_pull(skb, 1); /* Remove PID */
skb->h.raw = skb->data;
copied = skb->len;
skb_reset_transport_header(skb);
copied = skb->len;
if (copied > size) {
copied = size;