mt76: avoid rx reorder buffer overflow

Enlarge slot to support 11ax 256 BA (256 MPDUs in an AMPDU)

Signed-off-by: Chih-Min Chen <chih-min.chen@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/agg-rx.c b/drivers/net/wireless/mediatek/mt76/agg-rx.c
index f77f035..acdbe6f 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/agg-rx.c
+++ b/drivers/net/wireless/mediatek/mt76/agg-rx.c
@@ -152,8 +152,8 @@ void mt76_rx_aggr_reorder(struct sk_buff *skb, struct sk_buff_head *frames)
        struct ieee80211_sta *sta;
        struct mt76_rx_tid *tid;
        bool sn_less;
-       u16 seqno, head, size;
-       u8 ackp, idx;
+       u16 seqno, head, size, idx;
+       u8 ackp;
 
        __skb_queue_tail(frames, skb);
 
@@ -239,7 +239,7 @@ out:
 }
 
 int mt76_rx_aggr_start(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tidno,
-                      u16 ssn, u8 size)
+                      u16 ssn, u16 size)
 {
        struct mt76_rx_tid *tid;
 
@@ -264,7 +264,7 @@ EXPORT_SYMBOL_GPL(mt76_rx_aggr_start);
 
 static void mt76_rx_aggr_shutdown(struct mt76_dev *dev, struct mt76_rx_tid *tid)
 {
-       u8 size = tid->size;
+       u16 size = tid->size;
        int i;
 
        spin_lock_bh(&tid->lock);

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 728a2fb..67cab57 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -244,8 +244,8 @@ struct mt76_rx_tid {
        struct delayed_work reorder_work;
 
        u16 head;
-       u8 size;
-       u8 nframes;
+       u16 size;
+       u16 nframes;
 
        u8 num;
 
@@ -798,7 +798,7 @@ int mt76_get_survey(struct ieee80211_hw *hw, int idx,
 void mt76_set_stream_caps(struct mt76_dev *dev, bool vht);
 
 int mt76_rx_aggr_start(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid,
-                      u16 ssn, u8 size);
+                      u16 ssn, u16 size);
 void mt76_rx_aggr_stop(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid);
 
 void mt76_wcid_key_setup(struct mt76_dev *dev, struct mt76_wcid *wcid,