[SCTP]: Consolidate sctp_ulpq_renege_xxx functions

Both are equal, except for the list to be traversed.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 24 deletions

diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index b9370956b187..4be92d0a2cab 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -908,8 +908,8 @@ void sctp_ulpq_skip(struct sctp_ulpq *ulpq, __u16 sid, __u16 ssn)
         return;
 }
 
-/* Renege 'needed' bytes from the ordering queue. */
-static __u16 sctp_ulpq_renege_order(struct sctp_ulpq *ulpq, __u16 needed)
+static __u16 sctp_ulpq_renege_list(struct sctp_ulpq *ulpq,
+                struct sk_buff_head *list, __u16 needed)
 {
         __u16 freed = 0;
         __u32 tsn;
@@ -919,7 +919,7 @@ static __u16 sctp_ulpq_renege_order(struct sctp_ulpq *ulpq, __u16 needed)
 
         tsnmap = &ulpq->asoc->peer.tsn_map;
 
-        while ((skb = __skb_dequeue_tail(&ulpq->lobby)) != NULL) {
+        while ((skb = __skb_dequeue_tail(list)) != NULL) {
                 freed += skb_headlen(skb);
                 event = sctp_skb2event(skb);
                 tsn = event->tsn;
@@ -933,30 +933,16 @@ static __u16 sctp_ulpq_renege_order(struct sctp_ulpq *ulpq, __u16 needed)
         return freed;
 }
 
+/* Renege 'needed' bytes from the ordering queue. */
+static __u16 sctp_ulpq_renege_order(struct sctp_ulpq *ulpq, __u16 needed)
+{
+        return sctp_ulpq_renege_list(ulpq, &ulpq->lobby, needed);
+}
+
 /* Renege 'needed' bytes from the reassembly queue. */
 static __u16 sctp_ulpq_renege_frags(struct sctp_ulpq *ulpq, __u16 needed)
 {
-        __u16 freed = 0;
-        __u32 tsn;
-        struct sk_buff *skb;
-        struct sctp_ulpevent *event;
-        struct sctp_tsnmap *tsnmap;
-
-        tsnmap = &ulpq->asoc->peer.tsn_map;
-
-        /* Walk backwards through the list, reneges the newest tsns. */
-        while ((skb = __skb_dequeue_tail(&ulpq->reasm)) != NULL) {
-                freed += skb_headlen(skb);
-                event = sctp_skb2event(skb);
-                tsn = event->tsn;
-
-                sctp_ulpevent_free(event);
-                sctp_tsnmap_renege(tsnmap, tsn);
-                if (freed >= needed)
-                        return freed;
-        }
-
-        return freed;
+        return sctp_ulpq_renege_list(ulpq, &ulpq->reasm, needed);
 }
 
 /* Partial deliver the first message as there is pressure on rwnd. */