From 05dee5833a5f2d3d182dfa6de86b3e6b237940e3 Mon Sep 17 00:00:00 2001 From: Chuanhong Guo Date: Mon, 9 Sep 2019 14:52:39 +0800 Subject: [PATCH] ramips: ralink-eth: fix device struct passed to dma functions dma functions needs the struct from platform_device instead of the one for ethernet interface. Signed-off-by: Chuanhong Guo --- .../drivers/net/ethernet/ralink/mtk_eth_soc.c | 26 +++++++++---------- 1 file changed, 12 insertions(+), 14 deletions(-) diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c index e3a35c7c222..a088fe7fd59 100644 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c @@ -242,7 +242,7 @@ static void fe_clean_rx(struct fe_priv *priv) } if (ring->rx_dma) { - dma_free_coherent(&priv->netdev->dev, + dma_free_coherent(priv->dev, ring->rx_ring_size * sizeof(*ring->rx_dma), ring->rx_dma, ring->rx_phys); @@ -259,7 +259,6 @@ static void fe_clean_rx(struct fe_priv *priv) static int fe_alloc_rx(struct fe_priv *priv) { - struct net_device *netdev = priv->netdev; struct fe_rx_ring *ring = &priv->rx_ring; int i, pad; @@ -276,7 +275,7 @@ static int fe_alloc_rx(struct fe_priv *priv) goto no_rx_mem; } - ring->rx_dma = dma_alloc_coherent(&netdev->dev, + ring->rx_dma = dma_alloc_coherent(priv->dev, ring->rx_ring_size * sizeof(*ring->rx_dma), &ring->rx_phys, GFP_ATOMIC | __GFP_ZERO); @@ -288,11 +287,11 @@ static int fe_alloc_rx(struct fe_priv *priv) else pad = NET_IP_ALIGN; for (i = 0; i < ring->rx_ring_size; i++) { - dma_addr_t dma_addr = dma_map_single(&netdev->dev, + dma_addr_t dma_addr = dma_map_single(priv->dev, ring->rx_data[i] + NET_SKB_PAD + pad, ring->rx_buf_size, DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) + if (unlikely(dma_mapping_error(priv->dev, dma_addr))) goto no_rx_mem; ring->rx_dma[i].rxd1 = (unsigned int)dma_addr; @@ -342,7 +341,7 @@ static void fe_txd_unmap(struct device *dev, struct fe_tx_buf *tx_buf) static void fe_clean_tx(struct fe_priv *priv) { int i; - struct device *dev = &priv->netdev->dev; + struct device *dev = priv->dev; struct fe_tx_ring *ring = &priv->tx_ring; if (ring->tx_buf) { @@ -378,7 +377,7 @@ static int fe_alloc_tx(struct fe_priv *priv) if (!ring->tx_buf) goto no_tx_mem; - ring->tx_dma = dma_alloc_coherent(&priv->netdev->dev, + ring->tx_dma = dma_alloc_coherent(priv->dev, ring->tx_ring_size * sizeof(*ring->tx_dma), &ring->tx_phys, GFP_ATOMIC | __GFP_ZERO); @@ -664,7 +663,7 @@ static int fe_tx_map_dma(struct sk_buff *skb, struct net_device *dev, { struct fe_priv *priv = netdev_priv(dev); struct fe_map_state st = { - .dev = &dev->dev, + .dev = priv->dev, .ring_idx = ring->tx_next_idx, }; struct sk_buff *head = skb; @@ -764,7 +763,7 @@ err_dma: j = ring->tx_next_idx; for (i = 0; i < tx_num; i++) { /* unmap dma */ - fe_txd_unmap(&dev->dev, &ring->tx_buf[j]); + fe_txd_unmap(priv->dev, &ring->tx_buf[j]); ring->tx_dma[j].txd2 = TX_DMA_DESP2_DEF; j = NEXT_TX_DESP_IDX(j); @@ -908,11 +907,11 @@ static int fe_poll_rx(struct napi_struct *napi, int budget, stats->rx_dropped++; goto release_desc; } - dma_addr = dma_map_single(&netdev->dev, + dma_addr = dma_map_single(priv->dev, new_data + NET_SKB_PAD + pad, ring->rx_buf_size, DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) { + if (unlikely(dma_mapping_error(priv->dev, dma_addr))) { skb_free_frag(new_data); goto release_desc; } @@ -925,7 +924,7 @@ static int fe_poll_rx(struct napi_struct *napi, int budget, } skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN); - dma_unmap_single(&netdev->dev, trxd.rxd1, + dma_unmap_single(priv->dev, trxd.rxd1, ring->rx_buf_size, DMA_FROM_DEVICE); pktlen = RX_DMA_GET_PLEN0(trxd.rxd2); skb->dev = netdev; @@ -981,7 +980,6 @@ static int fe_poll_tx(struct fe_priv *priv, int budget, u32 tx_intr, int *tx_again) { struct net_device *netdev = priv->netdev; - struct device *dev = &netdev->dev; unsigned int bytes_compl = 0; struct sk_buff *skb; struct fe_tx_buf *tx_buf; @@ -1004,7 +1002,7 @@ static int fe_poll_tx(struct fe_priv *priv, int budget, u32 tx_intr, done++; budget--; } - fe_txd_unmap(dev, tx_buf); + fe_txd_unmap(priv->dev, tx_buf); idx = NEXT_TX_DESP_IDX(idx); } ring->tx_free_idx = idx; -- 2.30.2