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Subject[PATCH v2 net-next] net: mediatek: use dma_zalloc_coherent instead of allocator/memset
Date
Use dma_zalloc_coherent instead of dma_alloc_coherent
followed by memset 0.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
v2: remove redundant __GFP_ZERO
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index d8ebf0a..c30aea2 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -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;
--
2.7.0

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