gianfar: Factor out RX BDs initialization from gfar_new_rxbdp()

We want to just reinitialize RX BDs after hibernation, no need to
map the skb->data again. So let's factor gfar_init_rxbdp() out of
gfar_new_rxbdp().

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 21 insertions, 12 deletions

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 068f9a2cf42c..a84363261673 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -147,6 +147,23 @@ MODULE_AUTHOR("Freescale Semiconductor, Inc");
 MODULE_DESCRIPTION("Gianfar Ethernet Driver");
 MODULE_LICENSE("GPL");
 
+static void gfar_init_rxbdp(struct net_device *dev, struct rxbd8 *bdp,
+                            dma_addr_t buf)
+{
+        struct gfar_private *priv = netdev_priv(dev);
+        u32 lstatus;
+
+        bdp->bufPtr = buf;
+
+        lstatus = BD_LFLAG(RXBD_EMPTY | RXBD_INTERRUPT);
+        if (bdp == priv->rx_bd_base + priv->rx_ring_size - 1)
+                lstatus |= BD_LFLAG(RXBD_WRAP);
+
+        eieio();
+
+        bdp->lstatus = lstatus;
+}
+
 static int gfar_alloc_skb_resources(struct net_device *ndev)
 {
         struct txbd8 *txbdp;
@@ -1676,19 +1693,11 @@ static void gfar_new_rxbdp(struct net_device *dev, struct rxbd8 *bdp,
                 struct sk_buff *skb)
 {
         struct gfar_private *priv = netdev_priv(dev);
-        u32 lstatus;
-
-        bdp->bufPtr = dma_map_single(&priv->ofdev->dev, skb->data,
-                        priv->rx_buffer_size, DMA_FROM_DEVICE);
-
-        lstatus = BD_LFLAG(RXBD_EMPTY | RXBD_INTERRUPT);
+        dma_addr_t buf;
 
-        if (bdp == priv->rx_bd_base + priv->rx_ring_size - 1)
-                lstatus |= BD_LFLAG(RXBD_WRAP);
-
-        eieio();
-
-        bdp->lstatus = lstatus;
+        buf = dma_map_single(&priv->ofdev->dev, skb->data,
+                             priv->rx_buffer_size, DMA_FROM_DEVICE);
+        gfar_init_rxbdp(dev, bdp, buf);
 }