recipes-wifi/linux-mt76/files/patches-3.x/0057-mtk-mt76-mt7996-add-dma-mask-limitation.patch

From d85a2fe1480dfb60ca5a34afea1efdc2ca104bd5 Mon Sep 17 00:00:00 2001
From: "sujuan.chen" <sujuan.chen@mediatek.com>
Date: Thu, 20 Jul 2023 10:25:50 +0800
Subject: [PATCH 057/193] mtk: mt76: mt7996: add dma mask limitation

Signed-off-by: sujuan.chen <sujuan.chen@mediatek.com>
---
 dma.c | 4 ++--
 wed.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/dma.c b/dma.c
index 1021b3e..da21f64 100644
--- a/dma.c
+++ b/dma.c
@@ -488,7 +488,7 @@ mt76_dma_get_buf(struct mt76_dev *dev, struct mt76_queue *q, int idx,
 		} else {
 			struct mt76_queue_buf qbuf;
 
-			buf = page_frag_alloc(&q->rx_page, q->buf_size, GFP_ATOMIC);
+			buf = page_frag_alloc(&q->rx_page, q->buf_size, GFP_ATOMIC | GFP_DMA32);
 			if (!buf)
 				return NULL;
 
@@ -711,7 +711,7 @@ int mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q,
 		if (mt76_queue_is_wed_rro_ind(q))
 			goto done;
 
-		buf = page_frag_alloc(&q->rx_page, q->buf_size, GFP_ATOMIC);
+		buf = page_frag_alloc(&q->rx_page, q->buf_size, GFP_ATOMIC | GFP_DMA32);
 		if (!buf)
 			break;
 
diff --git a/wed.c b/wed.c
index 0a0b5c0..1c6d53c 100644
--- a/wed.c
+++ b/wed.c
@@ -65,14 +65,14 @@ u32 mt76_wed_init_rx_buf(struct mtk_wed_device *wed, int size)
 	for (i = 0; i < size; i++) {
 		struct mt76_rxwi_cache *r = mt76_get_rxwi(dev);
 		dma_addr_t addr;
-		struct page *page;
 		int token;
 		void *ptr;
 
 		if (!r)
 			goto unmap;
 
-		ptr = page_frag_alloc(&wed->rx_buf_ring.rx_page, length, GFP_ATOMIC);
+		ptr = page_frag_alloc(&wed->rx_buf_ring.rx_page, length,
+				      GFP_ATOMIC | GFP_DMA32);
 		if (!ptr) {
 			mt76_put_rxwi(dev, r);
 			goto unmap;
-- 
2.45.2