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Commit 0a78c380 authored by YueHaibing's avatar YueHaibing Committed by David S. Miller
Browse files

net: mediatek: use dma_zalloc_coherent instead of allocator/memset 



Use dma_zalloc_coherent instead of dma_alloc_coherent
followed by memset 0.

Signed-off-by: default avatarYueHaibing <yuehaibing@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 07300f77

drivers/net/ethernet/mediatek/mtk_eth_soc.c

+2 −5
Original line number Diff line number Diff line
@@ -1221,14 +1221,11 @@ static int mtk_tx_alloc(struct mtk_eth *eth) 
	if (!ring->buf)

		goto no_tx_mem;



	ring->dma = dma_alloc_coherent(eth->dev,

					  MTK_DMA_SIZE * sz,

					  &ring->phys,

					  GFP_ATOMIC | __GFP_ZERO);

	ring->dma = dma_zalloc_coherent(eth->dev, MTK_DMA_SIZE * sz,

					&ring->phys, GFP_ATOMIC);

	if (!ring->dma)

		goto no_tx_mem;



	memset(ring->dma, 0, MTK_DMA_SIZE * sz);

	for (i = 0; i < MTK_DMA_SIZE; i++) {

		int next = (i + 1) % MTK_DMA_SIZE;

		u32 next_ptr = ring->phys + next * sz;