[PATCH] mt76: mt7915: report qos_ctl without ACK policy

Bo Jiao bo.jiao at mediatek.com
Tue Apr 19 21:03:46 PDT 2022


From: Bo Jiao <Bo.Jiao at mediatek.com>

there is no need to report to the mac80211 layer the ACK policy which may
cause rx out-of-order issue, because the hardware rmac module already handle it

Signed-off-by: Bo Jiao <Bo.Jiao at mediatek.com>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index b47aea6..5080280 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -675,6 +675,11 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
 
 		fc = cpu_to_le16(FIELD_GET(MT_RXD6_FRAME_CONTROL, v0));
 		qos_ctl = FIELD_GET(MT_RXD8_QOS_CTL, v2);
+		/*
+		 * there is no need to report the ACK policy to the
+		 * mac80211 layer, because hw has already processed it.
+		 */
+		qos_ctl &= ~IEEE80211_QOS_CTL_ACK_POLICY_MASK;
 		seq_ctrl = FIELD_GET(MT_RXD8_SEQ_CTRL, v2);
 
 		rxd += 4;
-- 
2.18.0




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