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wifi: mt76: Get rid of dma_sync_single_for_device() for MMIO devices

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Since the page_pool for MT76 MMIO devices are created with
PP_FLAG_DMA_SYNC_DEV flag, we do not need to sync_for_device each page
received from the pool since it is already done by the page_pool
codebase.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2025-07-07 18:05:04 +02:00
committed by Felix Fietkau
parent 2937786524
commit a94166b21e
2 changed files with 4 additions and 13 deletions
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wed.c
+1 -5
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@@ -34,11 +34,10 @@ u32 mt76_wed_init_rx_buf(struct mtk_wed_device *wed, int size)
struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed);
struct mtk_wed_bm_desc *desc = wed->rx_buf_ring.desc;
struct mt76_queue *q = &dev->q_rx[MT_RXQ_MAIN];
int i, len = SKB_WITH_OVERHEAD(q->buf_size);
struct mt76_txwi_cache *t = NULL;
int i;
for (i = 0; i < size; i++) {
enum dma_data_direction dir;
dma_addr_t addr;
u32 offset;
int token;
@@ -53,9 +52,6 @@ u32 mt76_wed_init_rx_buf(struct mtk_wed_device *wed, int size)
goto unmap;
addr = page_pool_get_dma_addr(virt_to_head_page(buf)) + offset;
dir = page_pool_get_dma_dir(q->page_pool);
dma_sync_single_for_device(dev->dma_dev, addr, len, dir);
desc->buf0 = cpu_to_le32(addr);
token = mt76_rx_token_consume(dev, buf, t, addr);
if (token < 0) {