linux-kernel - [PATCH 4.19 031/148] wifi: b43: Stop/wake correct queue in PIO Tx path when QoS is disabled

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Message-ID: <20240324235012.1356413-32-sashal@kernel.org>
Date: Sun, 24 Mar 2024 19:48:15 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Rahul Rameshbabu <sergeantsagara@...tonmail.com>,
	Julian Calaby <julian.calaby@...il.com>,
	Kalle Valo <kvalo@...nel.org>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 031/148] wifi: b43: Stop/wake correct queue in PIO Tx path when QoS is disabled

From: Rahul Rameshbabu <sergeantsagara@...tonmail.com>

[ Upstream commit 77135a38f6c2f950d2306ac3d37cbb407e6243f2 ]

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@...tonmail.com>
Reviewed-by: Julian Calaby <julian.calaby@...il.com>
Signed-off-by: Kalle Valo <kvalo@...nel.org>
Link: https://msgid.link/20231231050300.122806-3-sergeantsagara@protonmail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/broadcom/b43/pio.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/broadcom/b43/pio.c b/drivers/net/wireless/broadcom/b43/pio.c
index a4ff5e2a42b95..b5126edcdc803 100644
--- a/drivers/net/wireless/broadcom/b43/pio.c
+++ b/drivers/net/wireless/broadcom/b43/pio.c
@@ -538,7 +538,7 @@ 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));
+		b43_stop_queue(dev, skb_get_queue_mapping(skb));
 		q->stopped = true;
 		goto out;
 	}
@@ -565,7 +565,7 @@ 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));
+		b43_stop_queue(dev, skb_get_queue_mapping(skb));
 		q->stopped = true;
 	}
 
@@ -600,7 +600,7 @@ 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);
+		b43_wake_queue(dev, q->queue_prio);
 		q->stopped = false;
 	}
 }
-- 
2.43.0