[SCTP]: Clean up stale data during association restart

During association restart we may have stale data sitting
on the ULP queue waiting for ordering or reassembly.  This
data may cause severe problems if not cleaned up.  In particular
stale data pending ordering may cause problems with receive
window exhaustion if our peer has decided to restart the
association.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/net/sctp/ulpqueue.h b/include/net/sctp/ulpqueue.h
index a43c8788b650..ab26ab3adae1 100644
--- a/include/net/sctp/ulpqueue.h
+++ b/include/net/sctp/ulpqueue.h
@@ -59,6 +59,7 @@ struct sctp_ulpq {
 /* Prototypes. */
 struct sctp_ulpq *sctp_ulpq_init(struct sctp_ulpq *,
                                  struct sctp_association *);
+void sctp_ulpq_flush(struct sctp_ulpq *ulpq);
 void sctp_ulpq_free(struct sctp_ulpq *);
 
 /* Add a new DATA chunk for processing. */