mac80211: A-MPDU Rx handling aggregation reordering
This patch handles the reordering of the Rx A-MPDU.
This issue occurs when the sequence of the internal MPDUs is not in the
right order. such a case can be encountered for example when some MPDUs from
previous aggregations were recieved, while others failed, so current A-MPDU
will contain a mix of re-transmited MPDUs and new ones.
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index d5a7683..f1edaa0 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -1208,7 +1208,7 @@
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
struct sta_info *sta;
- int ret;
+ int ret, i;
sta = sta_info_get(local, ra);
if (!sta)
@@ -1250,6 +1250,14 @@
ieee80211_send_delba(dev, ra, tid, 0, reason);
/* free the reordering buffer */
+ for (i = 0; i < sta->ampdu_mlme.tid_rx[tid].buf_size; i++) {
+ if (sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]) {
+ /* release the reordered frames */
+ dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]);
+ sta->ampdu_mlme.tid_rx[tid].stored_mpdu_num--;
+ sta->ampdu_mlme.tid_rx[tid].reorder_buf[i] = NULL;
+ }
+ }
kfree(sta->ampdu_mlme.tid_rx[tid].reorder_buf);
sta->ampdu_mlme.tid_rx[tid].state = HT_AGG_STATE_IDLE;