From: Daniel Halperin Date: Thu, 24 Mar 2011 23:01:48 +0000 (-0700) Subject: mac80211: fix aggregation frame release during timeout X-Git-Tag: v2.6.39-rc2~7^2~8^2~5 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=499fe9a419d43410be576bcc825658997b6ce822;p=~emulex%2Finfiniband.git mac80211: fix aggregation frame release during timeout Suppose the aggregation reorder buffer looks like this: x-T-R1-y-R2, where x and y are frames that have not been received, T is a received frame that has timed out, and R1,R2 are received frames that have not yet timed out. The proper behavior in this scenario is to move the window past x (skipping it), release T and R1, and leave the window at y until y is received or R2 times out. As written, this code will instead leave the window at R1, because it has not yet timed out. Fix this by exiting the reorder loop only when the frame that has not timed out AND there are skipped frames earlier in the current valid window. Signed-off-by: Daniel Halperin Signed-off-by: John W. Linville --- diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 5c1930ba8eb..aa5cc37b492 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -612,7 +612,8 @@ static void ieee80211_sta_reorder_release(struct ieee80211_hw *hw, skipped++; continue; } - if (!time_after(jiffies, tid_agg_rx->reorder_time[j] + + if (skipped && + !time_after(jiffies, tid_agg_rx->reorder_time[j] + HT_RX_REORDER_BUF_TIMEOUT)) goto set_release_timer;