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[SK_BUFF]: Introduce skb_reset_transport_header(skb)

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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
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3
net/x25/af_x25.c
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@@ -1210,8 +1210,7 @@ static int x25_recvmsg(struct kiocb *iocb, struct socket *sock,
}
}
skb->h.raw = skb->data;
skb_reset_transport_header(skb);
copied = skb->len;
if (copied > size) {

2
net/x25/x25_dev.c
View File

@@ -48,7 +48,7 @@ static int x25_receive_data(struct sk_buff *skb, struct x25_neigh *nb)
if ((sk = x25_find_socket(lci, nb)) != NULL) {
int queued = 1;
skb->h.raw = skb->data;
skb_reset_transport_header(skb);
bh_lock_sock(sk);
if (!sock_owned_by_user(sk)) {
queued = x25_process_rx_frame(sk, skb);

2
net/x25/x25_in.c
View File

@@ -53,7 +53,7 @@ static int x25_queue_rx_frame(struct sock *sk, struct sk_buff *skb, int more)
skb_queue_tail(&x25->fragment_queue, skb);
skbn->h.raw = skbn->data;
skb_reset_transport_header(skbn);
skbo = skb_dequeue(&x25->fragment_queue);
memcpy(skb_put(skbn, skbo->len), skbo->data, skbo->len);