Commit e42f1053 authored by Thomas Bogendoerfer's avatar Thomas Bogendoerfer Committed by David S. Miller
Browse files

net: korina: Remove not needed cache flushes 



Descriptors are mapped uncached so there is no need to do any cache
handling for them.

Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b4cd249a

drivers/net/ethernet/korina.c

+0 −6
Original line number Diff line number Diff line
@@ -231,7 +231,6 @@ static int korina_send_packet(struct sk_buff *skb, struct net_device *dev) 
	dma_cache_wback((u32)skb->data, skb->len);



	/* Setup the transmit descriptor. */

	dma_cache_inv((u32) td, sizeof(*td));

	td->ca = CPHYSADDR(skb->data);

	chain_prev = (lp->tx_chain_tail - 1) & KORINA_TDS_MASK;

	chain_next = (lp->tx_chain_tail + 1) & KORINA_TDS_MASK;
@@ -284,7 +283,6 @@ static int korina_send_packet(struct sk_buff *skb, struct net_device *dev) 
			lp->tx_chain_tail = chain_next;

		}

	}

	dma_cache_wback((u32) td, sizeof(*td));



	netif_trans_update(dev);

	spin_unlock_irqrestore(&lp->lock, flags);
@@ -373,8 +371,6 @@ static int korina_rx(struct net_device *dev, int limit) 
	u32 devcs, pkt_len, dmas;

	int count;



	dma_cache_inv((u32)rd, sizeof(*rd));



	for (count = 0; count < limit; count++) {

		skb = lp->rx_skb[lp->rx_next_done];

		skb_new = NULL;
@@ -453,7 +449,6 @@ static int korina_rx(struct net_device *dev, int limit) 
			~DMA_DESC_COD;



		lp->rx_next_done = (lp->rx_next_done + 1) & KORINA_RDS_MASK;

		dma_cache_wback((u32)rd, sizeof(*rd));

		rd = &lp->rd_ring[lp->rx_next_done];

		writel(~DMA_STAT_DONE, &lp->rx_dma_regs->dmas);

	}
@@ -468,7 +463,6 @@ static int korina_rx(struct net_device *dev, int limit) 
		rd->devcs = 0;

		skb = lp->rx_skb[lp->rx_next_done];

		rd->ca = CPHYSADDR(skb->data);

		dma_cache_wback((u32)rd, sizeof(*rd));

		korina_chain_rx(lp, rd);

	}