sctp: reduce memory footprint of sctp_chunk structure

[net-next-2.6.git] / include / net / sctp / structs.h

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 70eb64a7e1a17a842ec6388b3f7c542ca1852519..0dc1b7267c37fae9ec14ebaf0d2c3fa47b17f416 100644 (file)
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -524,8 +524,7 @@ static inline void sctp_ssn_skip(struct sctp_stream *stream, __u16 id,
  */
 struct sctp_af {
        int             (*sctp_xmit)    (struct sk_buff *skb,
-                                        struct sctp_transport *,
-                                        int ipfragok);
+                                        struct sctp_transport *);
        int             (*setsockopt)   (struct sock *sk,
                                         int level,
                                         int optname,
@@ -732,20 +731,23 @@ struct sctp_chunk {
         */
        struct sk_buff *auth_chunk;
 
-       __u8 rtt_in_progress;   /* Is this chunk used for RTT calculation? */
-       __u8 resent;            /* Has this chunk ever been retransmitted. */
-       __u8 has_tsn;           /* Does this chunk have a TSN yet? */
-       __u8 has_ssn;           /* Does this chunk have a SSN yet? */
-       __u8 singleton;         /* Was this the only chunk in the packet? */
-       __u8 end_of_packet;     /* Was this the last chunk in the packet? */
-       __u8 ecn_ce_done;       /* Have we processed the ECN CE bit? */
-       __u8 pdiscard;          /* Discard the whole packet now? */
-       __u8 tsn_gap_acked;     /* Is this chunk acked by a GAP ACK? */
-       __s8 fast_retransmit;    /* Is this chunk fast retransmitted? */
-       __u8 tsn_missing_report; /* Data chunk missing counter. */
-       __u8 data_accepted;     /* At least 1 chunk in this packet accepted */
-       __u8 auth;              /* IN: was auth'ed | OUT: needs auth */
-       __u8 has_asconf;        /* IN: have seen an asconf before */
+#define SCTP_CAN_FRTX 0x0
+#define SCTP_NEED_FRTX 0x1
+#define SCTP_DONT_FRTX 0x2
+       __u16   rtt_in_progress:1,      /* This chunk used for RTT calc? */
+               resent:1,               /* Has this chunk ever been resent. */
+               has_tsn:1,              /* Does this chunk have a TSN yet? */
+               has_ssn:1,              /* Does this chunk have a SSN yet? */
+               singleton:1,            /* Only chunk in the packet? */
+               end_of_packet:1,        /* Last chunk in the packet? */
+               ecn_ce_done:1,          /* Have we processed the ECN CE bit? */
+               pdiscard:1,             /* Discard the whole packet now? */
+               tsn_gap_acked:1,        /* Is this chunk acked by a GAP ACK? */
+               data_accepted:1,        /* At least 1 chunk accepted */
+               auth:1,                 /* IN: was auth'ed | OUT: needs auth */
+               has_asconf:1,           /* IN: have seen an asconf before */
+               tsn_missing_report:2,   /* Data chunk missing counter. */
+               fast_retransmit:2;      /* Is this chunk fast retransmitted? */
 };
 
 void sctp_chunk_hold(struct sctp_chunk *);
@@ -1161,7 +1163,6 @@ void sctp_outq_init(struct sctp_association *, struct sctp_outq *);
 void sctp_outq_teardown(struct sctp_outq *);
 void sctp_outq_free(struct sctp_outq*);
 int sctp_outq_tail(struct sctp_outq *, struct sctp_chunk *chunk);
-int sctp_outq_flush(struct sctp_outq *, int);
 int sctp_outq_sack(struct sctp_outq *, struct sctp_sackhdr *);
 int sctp_outq_is_empty(const struct sctp_outq *);
 void sctp_outq_restart(struct sctp_outq *);