From 02015180e2509afd2e3fe3790a333b30708a116b Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Wed, 8 Oct 2008 14:19:01 -0700 Subject: sctp: shrink sctp_tsnmap some more by removing gabs array The gabs array in the sctp_tsnmap structure is only used in one place, sctp_make_sack(). As such, carrying the array around in the sctp_tsnmap and thus directly in the sctp_association is rather pointless since most of the time it's just taking up space. Now, let sctp_make_sack create and populate it and then throw it away when it's done. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/sctp/tsnmap.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'net/sctp/tsnmap.c') diff --git a/net/sctp/tsnmap.c b/net/sctp/tsnmap.c index 142ed7ca424..35c73e82553 100644 --- a/net/sctp/tsnmap.c +++ b/net/sctp/tsnmap.c @@ -335,10 +335,11 @@ void sctp_tsnmap_renege(struct sctp_tsnmap *map, __u32 tsn) } /* How many gap ack blocks do we have recorded? */ -__u16 sctp_tsnmap_num_gabs(struct sctp_tsnmap *map) +__u16 sctp_tsnmap_num_gabs(struct sctp_tsnmap *map, + struct sctp_gap_ack_block *gabs) { struct sctp_tsnmap_iter iter; - int gabs = 0; + int ngaps = 0; /* Refresh the gap ack information. */ if (sctp_tsnmap_has_gap(map)) { @@ -348,14 +349,14 @@ __u16 sctp_tsnmap_num_gabs(struct sctp_tsnmap *map) &start, &end)) { - map->gabs[gabs].start = htons(start); - map->gabs[gabs].end = htons(end); - gabs++; - if (gabs >= SCTP_MAX_GABS) + gabs[ngaps].start = htons(start); + gabs[ngaps].end = htons(end); + ngaps++; + if (ngaps >= SCTP_MAX_GABS) break; } } - return gabs; + return ngaps; } static int sctp_tsnmap_grow(struct sctp_tsnmap *map, u16 gap) -- cgit v1.2.3