recipes-wifi/linux-mt76/files/patches-3.x/0065-mtk-mt76-mt7996-Remove-wed-rro-ring-add-napi-at-init.patch

From 1815f69621dafda1749100c80992820d90c65bef Mon Sep 17 00:00:00 2001
From: mtk27745 <rex.lu@mediatek.com>
Date: Mon, 6 Nov 2023 10:16:34 +0800
Subject: [PATCH 065/193] mtk: 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]);
-- 
2.45.2