3.16.7-ckt24 -stable review patch.  If anyone has any objections, please let me 
know.

---8<------------------------------------------------------------

From: Marcelo Ricardo Leitner <[email protected]>

commit 38ee8fb67c3457f36f5137073c4b8ac2436d2393 upstream.

They don't need to be any bigger than that and with this we start a new
bitfield for tracking association runtime stuff, like zero window
situation.

Signed-off-by: Marcelo Ricardo Leitner <[email protected]>
Acked-by: Vlad Yasevich <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
[ kamal: 3.19-stable prereq for
  8a0d19c sctp: start t5 timer only when peer rwnd is 0 and local state is 
SHUTDOWN_PENDING ]
Signed-off-by: Kamal Mostafa <[email protected]>
Signed-off-by: Luis Henriques <[email protected]>
---
 include/net/sctp/structs.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 2ba9fe6f9812..ec526e69daeb 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -773,10 +773,10 @@ struct sctp_transport {
                hb_sent:1,
 
                /* Is the Path MTU update pending on this tranport */
-               pmtu_pending:1;
+               pmtu_pending:1,
 
-       /* Has this transport moved the ctsn since we last sacked */
-       __u32 sack_generation;
+               /* Has this transport moved the ctsn since we last sacked */
+               sack_generation:1;
        u32 dst_cookie;
 
        struct flowi fl;
@@ -1481,19 +1481,19 @@ struct sctp_association {
                        prsctp_capable:1,   /* Can peer do PR-SCTP? */
                        auth_capable:1;     /* Is peer doing SCTP-AUTH? */
 
-               /* Ack State   : This flag indicates if the next received
+               /* sack_needed : This flag indicates if the next received
                 *             : packet is to be responded to with a
-                *             : SACK. This is initializedto 0.  When a packet
-                *             : is received it is incremented. If this value
+                *             : SACK. This is initialized to 0.  When a packet
+                *             : is received sack_cnt is incremented. If this 
value
                 *             : reaches 2 or more, a SACK is sent and the
                 *             : value is reset to 0. Note: This is used only
                 *             : when no DATA chunks are received out of
                 *             : order.  When DATA chunks are out of order,
                 *             : SACK's are not delayed (see Section 6).
                 */
-               __u8    sack_needed;     /* Do we need to sack the peer? */
+               __u8    sack_needed:1,     /* Do we need to sack the peer? */
+                       sack_generation:1;
                __u32   sack_cnt;
-               __u32   sack_generation;
 
                __u32   adaptation_ind;  /* Adaptation Code point. */
 

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