diff options
| -rw-r--r-- | net/mac80211/status.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 14268465f1d..d50358c45ab 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -278,17 +278,19 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) } if (!acked && ieee80211_is_back_req(fc)) { + u16 control; + /* - * BAR failed, let's tear down the BA session as a - * last resort as some STAs (Intel 5100 on Windows) - * can get stuck when the BA window isn't flushed - * correctly. + * BAR failed, store the last SSN and retry sending + * the BAR when the next unicast transmission on the + * same TID succeeds. */ bar = (struct ieee80211_bar *) skb->data; - if (!(bar->control & IEEE80211_BAR_CTRL_MULTI_TID)) { + control = le16_to_cpu(bar->control); + if (!(control & IEEE80211_BAR_CTRL_MULTI_TID)) { u16 ssn = le16_to_cpu(bar->start_seq_num); - tid = (bar->control & + tid = (control & IEEE80211_BAR_CTRL_TID_INFO_MASK) >> IEEE80211_BAR_CTRL_TID_INFO_SHIFT; |