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sctp: use bitmap_weight

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Use bitmap_weight to count the total number of bits set in bitmap.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Cc: linux-sctp@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Akinobu Mita 2012-11-16 20:39:49 +00:00 committed by David S. Miller
parent 67f4efdce7
commit fc184f0892
1 changed files with 2 additions and 6 deletions
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8
net/sctp/tsnmap.c
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@ -272,7 +272,7 @@ __u16 sctp_tsnmap_pending(struct sctp_tsnmap *map)
__u32 max_tsn = map->max_tsn_seen;
__u32 base_tsn = map->base_tsn;
__u16 pending_data;
u32 gap, i;
u32 gap;
pending_data = max_tsn - cum_tsn;
gap = max_tsn - base_tsn;
@ -280,11 +280,7 @@ __u16 sctp_tsnmap_pending(struct sctp_tsnmap *map)
if (gap == 0 || gap >= map->len)
goto out;
for (i = 0; i < gap+1; i++) {
if (test_bit(i, map->tsn_map))
pending_data--;
}
pending_data -= bitmap_weight(map->tsn_map, gap + 1);
out:
return pending_data;
}