From cce4c079c4af89e1ef01811376754116184ff019 Mon Sep 17 00:00:00 2001
From: juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sat, 11 Feb 2012 15:11:56 +0000
Subject: [PATCH] ramips: raeth: unmap DMA memory when a packet is received

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30443 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 target/linux/ramips/files/drivers/net/ramips.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c
index 338d200bd..17ef00bdc 100644
--- a/target/linux/ramips/files/drivers/net/ramips.c
+++ b/target/linux/ramips/files/drivers/net/ramips.c
@@ -282,6 +282,10 @@ ramips_eth_rx_hw(unsigned long ptr)
 		new_skb = netdev_alloc_skb(dev, MAX_RX_LENGTH + NET_IP_ALIGN);
 		/* Reuse the buffer on allocation failures */
 		if (new_skb) {
+			/* TODO: convert to use dma_address_t */
+			dma_unmap_single(NULL, priv->rx[rx].rxd1, MAX_RX_LENGTH,
+					 DMA_FROM_DEVICE);
+
 			skb_put(rx_skb, pktlen);
 			rx_skb->dev = dev;
 			rx_skb->protocol = eth_type_trans(rx_skb, dev);