recipes-wifi/linux-mt76/files/patches-3.x/0072-mtk-wifi-mt76-mt7996-Remove-wed-rro-ring-add-napi-at.patch

From 6701c4d78ed81ac7d04b73c213f38f2d3ba1a735 Mon Sep 17 00:00:00 2001
From: mtk27745 <rex.lu@mediatek.com>
Date: Mon, 6 Nov 2023 10:16:34 +0800
Subject: [PATCH 072/116] mtk: wifi: mt76: mt7996: Remove wed rro ring add napi
 at init state

without this patch. rro ring will add napi at initial state. once rro ring add napi, it will have chance to be used by host driver. if host driver accessed the ring data, it will cause some issue.

Signed-off-by: mtk27745 <rex.lu@mediatek.com>
---
 dma.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dma.c b/dma.c
index e23b744..38701c7 100644
--- a/dma.c
+++ b/dma.c
@@ -1017,6 +1017,10 @@ mt76_dma_init(struct mt76_dev *dev,
 	init_completion(&dev->mmio.wed_reset_complete);
 
 	mt76_for_each_q_rx(dev, i) {
+		if (mtk_wed_device_active(&dev->mmio.wed) &&
+		    mt76_queue_is_wed_rro(&dev->q_rx[i]))
+			continue;
+
 		netif_napi_add(&dev->napi_dev, &dev->napi[i], poll);
 		mt76_dma_rx_fill(dev, &dev->q_rx[i], false);
 		napi_enable(&dev->napi[i]);
-- 
2.18.0