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authorRon Rindjunsky <ron.rindjunsky@intel.com>2008-03-26 20:36:03 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-03-27 16:03:20 -0400
commitcee24a3e580f1062c8bb8b1692b95014d882bc7d (patch)
treee7df5e0f987a817ff0c9b14142a4efc583d39fa2 /net/mac80211/rx.c
parent6c507cd0400cb51dd2ee251c1b8756b9375a1128 (diff)
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mac80211: A-MPDU MLME use dynamic allocation
This patch alters the A-MPDU MLME in sta_info to use dynamic allocation, thus drastically improving memory usage - from a constant ~2 Kbyte in the previous (static) allocation to a lower limit of ~200 Byte and an upper limit of ~2 Kbyte. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 644d277..d9c6ed5 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1514,9 +1514,10 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx)
if (!rx->sta)
return RX_CONTINUE;
tid = le16_to_cpu(bar->control) >> 12;
- tid_agg_rx = &(rx->sta->ampdu_mlme.tid_rx[tid]);
- if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
+ if (rx->sta->ampdu_mlme.tid_state_rx[tid]
+ != HT_AGG_STATE_OPERATIONAL)
return RX_CONTINUE;
+ tid_agg_rx = rx->sta->ampdu_mlme.tid_rx[tid];
start_seq_num = le16_to_cpu(bar->start_seq_num) >> 4;
@@ -2123,11 +2124,12 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
qc = skb->data + ieee80211_get_hdrlen(fc) - QOS_CONTROL_LEN;
tid = qc[0] & QOS_CONTROL_TID_MASK;
- tid_agg_rx = &(sta->ampdu_mlme.tid_rx[tid]);
- if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
+ if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_OPERATIONAL)
goto end_reorder;
+ tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
+
/* null data frames are excluded */
if (unlikely(fc & IEEE80211_STYPE_NULLFUNC))
goto end_reorder;