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Commit e88aae7b authored by Yoshihiro Shimoda's avatar Yoshihiro Shimoda Committed by David S. Miller
Browse files

net: sh_eth: fix cache coherency issue 



Fix the problem that may not work receive process by cache coherency issue.

Signed-off-by: default avatarYoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: default avatarNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a1dcb662

drivers/net/sh_eth.c

+4 −0
Original line number Diff line number Diff line
@@ -250,6 +250,8 @@ static void sh_eth_ring_format(struct net_device *ndev) 
		mdp->rx_skbuff[i] = skb;

		if (skb == NULL)

			break;

		dma_map_single(&ndev->dev, skb->tail, mdp->rx_buf_sz,

				DMA_FROM_DEVICE);

		skb->dev = ndev; /* Mark as being used by this device. */

#if defined(CONFIG_CPU_SUBTYPE_SH7763)

		reserve = SH7763_SKB_ALIGN
@@ -559,6 +561,8 @@ static int sh_eth_rx(struct net_device *ndev) 
			mdp->rx_skbuff[entry] = skb;

			if (skb == NULL)

				break;	/* Better luck next round. */

			dma_map_single(&ndev->dev, skb->tail, mdp->rx_buf_sz,

					DMA_FROM_DEVICE);

			skb->dev = ndev;

#if defined(CONFIG_CPU_SUBTYPE_SH7763)

			reserve = SH7763_SKB_ALIGN