From: Felix Fietkau <nbd@nbd.name>
To: linux-wireless@vger.kernel.org
Cc: kvalo@codeaurora.org
Subject: [PATCH 5.9] mt76: mt7915: use ieee80211_free_txskb to free tx skbs
Date: Wed, 12 Aug 2020 16:49:43 +0200 [thread overview]
Message-ID: <20200812144943.91974-1-nbd@nbd.name> (raw)
Using dev_kfree_skb for tx skbs breaks AQL. This worked until now only
by accident, because a mac80211 issue breaks AQL on drivers with firmware
rate control that report the rate via ieee80211_tx_status_ext as struct
rate_info.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
drivers/net/wireless/mediatek/mt76/mt7915/init.c | 8 ++++++--
drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 2 +-
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index aadf56e80bae..d7a3b05ab50c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -691,8 +691,12 @@ void mt7915_unregister_device(struct mt7915_dev *dev)
spin_lock_bh(&dev->token_lock);
idr_for_each_entry(&dev->token, txwi, id) {
mt7915_txp_skb_unmap(&dev->mt76, txwi);
- if (txwi->skb)
- dev_kfree_skb_any(txwi->skb);
+ if (txwi->skb) {
+ struct ieee80211_hw *hw;
+
+ hw = mt76_tx_status_get_hw(&dev->mt76, txwi->skb);
+ ieee80211_free_txskb(hw, txwi->skb);
+ }
mt76_put_txwi(&dev->mt76, txwi);
}
spin_unlock_bh(&dev->token_lock);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index a264e304a3df..5800b2d1fb23 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -844,7 +844,7 @@ mt7915_tx_complete_status(struct mt76_dev *mdev, struct sk_buff *skb,
if (sta || !(info->flags & IEEE80211_TX_CTL_NO_ACK))
mt7915_tx_status(sta, hw, info, NULL);
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(hw, skb);
}
void mt7915_txp_skb_unmap(struct mt76_dev *dev,
--
2.28.0
next reply other threads:[~2020-08-12 14:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-12 14:49 Felix Fietkau [this message]
2020-08-12 15:19 ` [PATCH 5.9] mt76: mt7915: use ieee80211_free_txskb to free tx skbs Toke Høiland-Jørgensen
2020-08-12 15:22 ` Felix Fietkau
2020-08-27 13:13 ` Kalle Valo
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