recipes-wifi/linux-mt76/files/patches-3.x/2017-mtk-wifi-mt76-mt7996-Remove-wed-rro-ring-add-napi-at.patch

From 253dc25979390b559324187a5a2d1e35552a93c8 Mon Sep 17 00:00:00 2001
From: mtk27745 <rex.lu@mediatek.com>
Date: Mon, 6 Nov 2023 10:16:34 +0800
Subject: [PATCH 2017/2032] 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 e23b744b..38701c71 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