Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
Cc: Helmut Schaa <helmut.schaa@xxxxxxxxxxxxxx>
---
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 1426846..d50358c 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;
--
1.7.3.2
--
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