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Date: Tue, 09 Jun 2009 05:02:28 -0700 (PDT)
From: David Miller <davem@...emloft.net>
To: netdev@...r.kernel.org
Subject: [PATCH 13/15]: sctp: Use frag list abstraction interfaces.
Signed-off-by: David S. Miller <davem@...emloft.net>
---
net/sctp/input.c | 4 ++--
net/sctp/socket.c | 6 +++---
net/sctp/ulpevent.c | 7 +++----
3 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/net/sctp/input.c b/net/sctp/input.c
index d2e9880..c0c973e 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -81,13 +81,13 @@ static void sctp_add_backlog(struct sock *sk, struct sk_buff *skb);
/* Calculate the SCTP checksum of an SCTP packet. */
static inline int sctp_rcv_checksum(struct sk_buff *skb)
{
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
struct sctphdr *sh = sctp_hdr(skb);
__le32 cmp = sh->checksum;
+ struct sk_buff *list;
__le32 val;
__u32 tmp = sctp_start_cksum((__u8 *)sh, skb_headlen(skb));
- for (; list; list = list->next)
+ skb_walk_frags(skb, list)
tmp = sctp_update_cksum((__u8 *)list->data, skb_headlen(list),
tmp);
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 7c3dfd2..0f01e5d 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1881,7 +1881,7 @@ static int sctp_skb_pull(struct sk_buff *skb, int len)
len -= skb_len;
__skb_pull(skb, skb_len);
- for (list = skb_shinfo(skb)->frag_list; list; list = list->next) {
+ skb_walk_frags(skb, list) {
rlen = sctp_skb_pull(list, len);
skb->len -= (len-rlen);
skb->data_len -= (len-rlen);
@@ -6660,7 +6660,7 @@ static void sctp_sock_rfree_frag(struct sk_buff *skb)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+ skb_walk_frags(skb, frag)
sctp_sock_rfree_frag(frag);
done:
@@ -6675,7 +6675,7 @@ static void sctp_skb_set_owner_r_frag(struct sk_buff *skb, struct sock *sk)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+ skb_walk_frags(skb, frag)
sctp_skb_set_owner_r_frag(frag, sk);
done:
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 5f186ca..8b3560f 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -976,9 +976,8 @@ static void sctp_ulpevent_receive_data(struct sctp_ulpevent *event,
* In general, the skb passed from IP can have only 1 level of
* fragments. But we allow multiple levels of fragments.
*/
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+ skb_walk_frags(skb, frag)
sctp_ulpevent_receive_data(sctp_skb2event(frag), asoc);
- }
}
/* Do accounting for bytes just read by user and release the references to
@@ -1003,7 +1002,7 @@ static void sctp_ulpevent_release_data(struct sctp_ulpevent *event)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+ skb_walk_frags(skb, frag) {
/* NOTE: skb_shinfos are recursive. Although IP returns
* skb's with only 1 level of fragments, SCTP reassembly can
* increase the levels.
@@ -1026,7 +1025,7 @@ static void sctp_ulpevent_release_frag_data(struct sctp_ulpevent *event)
goto done;
/* Don't forget the fragments. */
- for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+ skb_walk_frags(skb, frag) {
/* NOTE: skb_shinfos are recursive. Although IP returns
* skb's with only 1 level of fragments, SCTP reassembly can
* increase the levels.
--
1.6.3.2
--
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