[PATCH wireless 3/5] wifi: b43: Stop/wake correct queue in PIO Tx path when QoS is disabled

[Rahul Rameshbabu]

When QoS is disabled, the queue priority value will not map to the correct
ieee80211 queue since there is only one queue. Stop/wake queue 0 when QoS
is disabled to prevent trying to stop/wake a non-existent queue and failing
to stop/wake the actual queue instantiated.

Fixes: 5100d5ac81b9 ("b43: Add PIO support for PCMCIA devices")
Signed-off-by: Rahul Rameshbabu <sergeantsagara@xxxxxxxxxxxxxx>
---
 drivers/net/wireless/broadcom/b43/pio.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/broadcom/b43/pio.c b/drivers/net/wireless/broadcom/b43/pio.c
index 0cf70fdb60a6..7168fe50af5b 100644
--- a/drivers/net/wireless/broadcom/b43/pio.c
+++ b/drivers/net/wireless/broadcom/b43/pio.c
@@ -525,7 +525,11 @@ int b43_pio_tx(struct b43_wldev *dev, struct sk_buff *skb)
 	if (total_len > (q->buffer_size - q->buffer_used)) {
 		/* Not enough memory on the queue. */
 		err = -EBUSY;
-		ieee80211_stop_queue(dev->wl->hw, skb_get_queue_mapping(skb));
+		if (dev->qos_enabled)
+			ieee80211_stop_queue(dev->wl->hw,
+					     skb_get_queue_mapping(skb));
+		else
+			ieee80211_stop_queue(dev->wl->hw, 0);
 		q->stopped = true;
 		goto out;
 	}
@@ -552,7 +556,11 @@ int b43_pio_tx(struct b43_wldev *dev, struct sk_buff *skb)
 	if (((q->buffer_size - q->buffer_used) < roundup(2 + 2 + 6, 4)) ||
 	    (q->free_packet_slots == 0)) {
 		/* The queue is full. */
-		ieee80211_stop_queue(dev->wl->hw, skb_get_queue_mapping(skb));
+		if (dev->qos_enabled)
+			ieee80211_stop_queue(dev->wl->hw,
+					     skb_get_queue_mapping(skb));
+		else
+			ieee80211_stop_queue(dev->wl->hw, 0);
 		q->stopped = true;
 	}
 
@@ -587,7 +595,10 @@ void b43_pio_handle_txstatus(struct b43_wldev *dev,
 	list_add(&pack->list, &q->packets_list);
 
 	if (q->stopped) {
-		ieee80211_wake_queue(dev->wl->hw, q->queue_prio);
+		if (dev->qos_enabled)
+			ieee80211_wake_queue(dev->wl->hw, q->queue_prio);
+		else
+			ieee80211_wake_queue(dev->wl->hw, 0);
 		q->stopped = false;
 	}
 }
-- 
2.42.0