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-rw-r--r--include/net/sctp/tsnmap.h14
-rw-r--r--net/sctp/sm_make_chunk.c6
-rw-r--r--net/sctp/tsnmap.c15
3 files changed, 15 insertions, 20 deletions
diff --git a/include/net/sctp/tsnmap.h b/include/net/sctp/tsnmap.h
index 6dabbee8bbd3..4aabc5a96cf6 100644
--- a/include/net/sctp/tsnmap.h
+++ b/include/net/sctp/tsnmap.h
@@ -94,11 +94,8 @@ struct sctp_tsnmap {
* every SACK. Store up to SCTP_MAX_DUP_TSNS worth of
* information.
*/
- __be32 dup_tsns[SCTP_MAX_DUP_TSNS];
__u16 num_dup_tsns;
-
- /* Record gap ack block information here. */
- struct sctp_gap_ack_block gabs[SCTP_MAX_GABS];
+ __be32 dup_tsns[SCTP_MAX_DUP_TSNS];
};
struct sctp_tsnmap_iter {
@@ -151,17 +148,12 @@ static inline __be32 *sctp_tsnmap_get_dups(struct sctp_tsnmap *map)
}
/* 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);
/* Refresh the count on pending data. */
__u16 sctp_tsnmap_pending(struct sctp_tsnmap *map);
-/* Return pointer to gap ack blocks as needed by SACK. */
-static inline struct sctp_gap_ack_block *sctp_tsnmap_get_gabs(struct sctp_tsnmap *map)
-{
- return map->gabs;
-}
-
/* Is there a gap in the TSN map? */
static inline int sctp_tsnmap_has_gap(const struct sctp_tsnmap *map)
{
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 6dd9b3ef33d0..fd8acb48c3f2 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -702,12 +702,14 @@ struct sctp_chunk *sctp_make_sack(const struct sctp_association *asoc)
__u32 ctsn;
__u16 num_gabs, num_dup_tsns;
struct sctp_tsnmap *map = (struct sctp_tsnmap *)&asoc->peer.tsn_map;
+ struct sctp_gap_ack_block gabs[SCTP_MAX_GABS];
+ memset(gabs, 0, sizeof(gabs));
ctsn = sctp_tsnmap_get_ctsn(map);
SCTP_DEBUG_PRINTK("sackCTSNAck sent: 0x%x.\n", ctsn);
/* How much room is needed in the chunk? */
- num_gabs = sctp_tsnmap_num_gabs(map);
+ num_gabs = sctp_tsnmap_num_gabs(map, gabs);
num_dup_tsns = sctp_tsnmap_num_dups(map);
/* Initialize the SACK header. */
@@ -763,7 +765,7 @@ struct sctp_chunk *sctp_make_sack(const struct sctp_association *asoc)
/* Add the gap ack block information. */
if (num_gabs)
sctp_addto_chunk(retval, sizeof(__u32) * num_gabs,
- sctp_tsnmap_get_gabs(map));
+ gabs);
/* Add the duplicate TSN information. */
if (num_dup_tsns)
diff --git a/net/sctp/tsnmap.c b/net/sctp/tsnmap.c
index 142ed7ca424d..35c73e82553a 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)