[PATCH 4/6] net: calxedaxgmac: drop some unnecessary register writes
From: Rob Herring <hidden>
Date: 2012-10-12 15:15:51
Also in:
lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Rob Herring <redacted> The interrupts have already been cleared, so we don't need to clear them again. Also, we could miss interrupts if they are cleared, but we don't process the packet. Signed-off-by: Rob Herring <redacted> --- drivers/net/ethernet/calxeda/xgmac.c | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index 117839e..4a1a06a 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c@@ -846,9 +846,6 @@ static void xgmac_free_dma_desc_rings(struct xgmac_priv *priv) static void xgmac_tx_complete(struct xgmac_priv *priv) { int i; - void __iomem *ioaddr = priv->base; - - writel(DMA_STATUS_TU | DMA_STATUS_NIS, ioaddr + XGMAC_DMA_STATUS); while (dma_ring_cnt(priv->tx_head, priv->tx_tail, DMA_TX_RING_SZ)) { unsigned int entry = priv->tx_tail;
@@ -1139,9 +1136,6 @@ static int xgmac_rx(struct xgmac_priv *priv, int limit) struct sk_buff *skb; int frame_len; - writel(DMA_STATUS_RI | DMA_STATUS_NIS, - priv->base + XGMAC_DMA_STATUS); - entry = priv->rx_tail; p = priv->dma_rx + entry; if (desc_get_owner(p))
--
1.7.9.5