[PATCH] mt76: mt7921: avoid unnecessary spin_lock/spin_unlock in mt7921_mcu_tx_done_event
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: 2021-06-19 18:20:06
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
Do not grab the spinlock in mt7921_mcu_tx_done_event routine if not necessary. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> --- drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 1819de869fdf..8e011214169c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c@@ -534,9 +534,7 @@ mt7921_mcu_tx_done_event(struct mt7921_dev *dev, struct sk_buff *skb) mt7921_mcu_tx_rate_parse(mphy->mt76, &peer, &msta->stats.tx_rate, le16_to_cpu(event->tx_rate)); - - spin_lock_bh(&dev->sta_poll_lock); - break; + return; } spin_unlock_bh(&dev->sta_poll_lock); }
--
2.31.1