From e88aae7bb1dc50457489d1d7c81dcf4db23ccf94 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Sun, 24 May 2009 23:52:35 +0000 Subject: net: sh_eth: fix cache coherency issue Fix the problem that may not work receive process by cache coherency issue. Signed-off-by: Yoshihiro Shimoda Signed-off-by: Nobuhiro Iwamatsu Signed-off-by: David S. Miller --- drivers/net/sh_eth.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/net/sh_eth.c') diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c index 3ab28bb00c12..a742297e3e94 100644 --- a/drivers/net/sh_eth.c +++ b/drivers/net/sh_eth.c @@ -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 -- cgit v1.2.3