diff options
| author | Sean Wang <sean.wang@mediatek.com> | 2018-07-28 13:35:55 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-29 13:15:57 -0700 |
| commit | 6c21da204a90ceca73096bf1b91c4fdf43308c16 (patch) | |
| tree | 60bff5600e325241b1fbc1f22b61e99d6a9681a4 | |
| parent | d1753390274f7760e5b593cb657ea34f0617e559 (diff) | |
| download | blackbird-obmc-linux-6c21da204a90ceca73096bf1b91c4fdf43308c16.tar.gz blackbird-obmc-linux-6c21da204a90ceca73096bf1b91c4fdf43308c16.zip | |
net-next: mediatek: improve more with using dma_zalloc_coherent
Improve more in the existing code by reusing dma_zalloc_coherent instead
of dma_alloc_coherent with __GFP_ZERO or superfluous zeroing buffer.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index c30aea2ab767..8c85a4b4d6c5 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -605,10 +605,10 @@ static int mtk_init_fq_dma(struct mtk_eth *eth) dma_addr_t dma_addr; int i; - eth->scratch_ring = dma_alloc_coherent(eth->dev, - cnt * sizeof(struct mtk_tx_dma), - ð->phy_scratch_ring, - GFP_ATOMIC | __GFP_ZERO); + eth->scratch_ring = dma_zalloc_coherent(eth->dev, + cnt * sizeof(struct mtk_tx_dma), + ð->phy_scratch_ring, + GFP_ATOMIC); if (unlikely(!eth->scratch_ring)) return -ENOMEM; @@ -623,7 +623,6 @@ static int mtk_init_fq_dma(struct mtk_eth *eth) if (unlikely(dma_mapping_error(eth->dev, dma_addr))) return -ENOMEM; - memset(eth->scratch_ring, 0x0, sizeof(struct mtk_tx_dma) * cnt); phy_ring_tail = eth->phy_scratch_ring + (sizeof(struct mtk_tx_dma) * (cnt - 1)); @@ -1318,10 +1317,9 @@ static int mtk_rx_alloc(struct mtk_eth *eth, int ring_no, int rx_flag) return -ENOMEM; } - ring->dma = dma_alloc_coherent(eth->dev, - rx_dma_size * sizeof(*ring->dma), - &ring->phys, - GFP_ATOMIC | __GFP_ZERO); + ring->dma = dma_zalloc_coherent(eth->dev, + rx_dma_size * sizeof(*ring->dma), + &ring->phys, GFP_ATOMIC); if (!ring->dma) return -ENOMEM; |
