From f4021e1f06913f8e962f98d21cecf2353f52a0e6 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Wed, 15 Jan 2020 11:58:41 +0100
Subject: [PATCH] mt76: mt76u: check tx_status_data pointer in mt76u_tx_tasklet
Git-commit: f4021e1f06913f8e962f98d21cecf2353f52a0e6
Patch-mainline: v5.7-rc1
References: jsc#SLE-13430
New devices (e.g. mt7663u) do not rely on stats workqueue to load tx
statistics but will be reported by the firmware. Check tx_status_data
pointer in mt76u_tx_tasklet in order to reuse tx tasklet for new devices
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/mediatek/mt76/usb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/usb.c b/drivers/net/wireless/mediatek/mt76/usb.c
index 22dacf040123..fbc4c0bb0102 100644
--- a/drivers/net/wireless/mediatek/mt76/usb.c
+++ b/drivers/net/wireless/mediatek/mt76/usb.c
@@ -708,7 +708,8 @@ static void mt76u_tx_tasklet(unsigned long data)
mt76_txq_schedule(&dev->phy, i);
- if (!test_and_set_bit(MT76_READING_STATS, &dev->phy.state))
+ if (dev->drv->tx_status_data &&
+ !test_and_set_bit(MT76_READING_STATS, &dev->phy.state))
queue_work(dev->usb.stat_wq, &dev->usb.stat_work);
if (wake)
ieee80211_wake_queue(dev->hw, i);
--
2.16.4