2 files changed, 6 insertions, 1 deletions

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index e4652fe58958..fecdf31816f2 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -912,6 +912,9 @@ struct sctp_transport {
                 /* Is this structure kfree()able? */
                 malloced:1;
 
+        /* Has this transport moved the ctsn since we last sacked */
+        __u32 sack_generation;
+
         struct flowi fl;
 
         /* This is the peer's IP address and port. */
@@ -1584,6 +1587,7 @@ struct sctp_association {
                  */
                 __u8    sack_needed;     /* Do we need to sack the peer? */
                 __u32   sack_cnt;
+                __u32   sack_generation;
 
                 /* These are capabilities which our peer advertised.  */
                 __u8    ecn_capable:1,      /* Can peer do ECN? */
diff --git a/include/net/sctp/tsnmap.h b/include/net/sctp/tsnmap.h
index e7728bc14ccf..2c5d2b4d5d1e 100644
--- a/include/net/sctp/tsnmap.h
+++ b/include/net/sctp/tsnmap.h
@@ -117,7 +117,8 @@ void sctp_tsnmap_free(struct sctp_tsnmap *map);
 int sctp_tsnmap_check(const struct sctp_tsnmap *, __u32 tsn);
 
 /* Mark this TSN as seen.  */
-int sctp_tsnmap_mark(struct sctp_tsnmap *, __u32 tsn);
+int sctp_tsnmap_mark(struct sctp_tsnmap *, __u32 tsn,
+                     struct sctp_transport *trans);
 
 /* Mark this TSN and all lower as seen. */
 void sctp_tsnmap_skip(struct sctp_tsnmap *map, __u32 tsn);