net: sh_eth: remove __flush_purge_region

It is a function of SuperH architecture. There is no good to use
the function on a driver generally. So, the driver uses
dma_map_single() instead of __flush_purge_region.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 96a629f..3da168a 100644 (file)
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -33,7 +33,6 @@
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 #include <linux/ethtool.h>
-#include <asm/cacheflush.h>
 
 #include "sh_eth.h"
 
@@ -864,6 +863,8 @@ static int sh_eth_txfree(struct net_device *ndev)
                        break;
                /* Free the original skb. */
                if (mdp->tx_skbuff[entry]) {
+                       dma_unmap_single(&ndev->dev, txdesc->addr,
+                                        txdesc->buffer_length, DMA_TO_DEVICE);
                        dev_kfree_skb_irq(mdp->tx_skbuff[entry]);
                        mdp->tx_skbuff[entry] = NULL;
                        freeNum++;
@@ -1487,13 +1488,12 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
        entry = mdp->cur_tx % TX_RING_SIZE;
        mdp->tx_skbuff[entry] = skb;
        txdesc = &mdp->tx_ring[entry];
-       txdesc->addr = virt_to_phys(skb->data);
        /* soft swap. */
        if (!mdp->cd->hw_swap)
                sh_eth_soft_swap(phys_to_virt(ALIGN(txdesc->addr, 4)),
                                 skb->len + 2);
-       /* write back */
-       __flush_purge_region(skb->data, skb->len);
+       txdesc->addr = dma_map_single(&ndev->dev, skb->data, skb->len,
+                                     DMA_TO_DEVICE);
        if (skb->len < ETHERSMALL)
                txdesc->buffer_length = ETHERSMALL;
        else