From 71d28725548be203e8b8f6ad63b1f64fd7f02d4d Mon Sep 17 00:00:00 2001
From: Dale Farnsworth <dale@farnsworth.org>
Date: Wed, 13 Sep 2006 09:21:08 -0700
Subject: [PATCH] [PATCH] mv643xx_eth: Unmap DMA buffers in receive path
Fix a missing call to dma_unmap_single() in the receive path. Without
this call, errors have been observed on non-cache-coherent systems.
Signed-off-by Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
drivers/net/mv643xx_eth.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 760c61b98867..eeab1df5bef3 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -385,6 +385,8 @@ static int mv643xx_eth_receive_queue(struct net_device *dev, int budget)
struct pkt_info pkt_info;
while (budget-- > 0 && eth_port_receive(mp, &pkt_info) == ETH_OK) {
+ dma_unmap_single(NULL, pkt_info.buf_ptr, RX_SKB_SIZE,
+ DMA_FROM_DEVICE);
mp->rx_desc_count--;
received_packets++;
--
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