mac80211: fix Rx reordering with RX_FLAG_AMSDU_MORE
Some drivers (e.g. ath10k) report A-MSDU subframes
individually with identical seqno. The A-MPDU Rx
reorder code did not account for that which made
it practically unusable with drivers using
RX_FLAG_AMSDU_MORE because it would end up
dropping a lot of frames resulting in confusion in
upper network transport layers.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 49731dd..c504e99 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1729,6 +1729,21 @@
ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
}
+static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head *frames)
+{
+ struct sk_buff *tail = skb_peek_tail(frames);
+ struct ieee80211_rx_status *status;
+
+ if (!tail)
+ return false;
+
+ status = IEEE80211_SKB_RXCB(tail);
+ if (status->flag & RX_FLAG_AMSDU_MORE)
+ return false;
+
+ return true;
+}
+
void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
void ieee80211_dynamic_ps_timer(unsigned long data);