via-rhine: factor out tx_thresh handling

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>

1 files changed, 12 insertions, 5 deletions

diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index 5c4983b2870a..93987e84be18 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -657,6 +657,16 @@ static void rhine_poll(struct net_device *dev)
 }
 #endif
 
+static void rhine_kick_tx_threshold(struct rhine_private *rp)
+{
+        if (rp->tx_thresh < 0xe0) {
+                void __iomem *ioaddr = rp->base;
+
+                rp->tx_thresh += 0x20;
+                BYTE_REG_BITS_SET(rp->tx_thresh, 0x80, ioaddr + TxConfig);
+        }
+}
+
 static int rhine_napipoll(struct napi_struct *napi, int budget)
 {
         struct rhine_private *rp = container_of(napi, struct rhine_private, napi);
@@ -1910,8 +1920,7 @@ static void rhine_error(struct net_device *dev, int intr_status)
                                     intr_status);
         }
         if (intr_status & IntrTxUnderrun) {
-                if (rp->tx_thresh < 0xE0)
-                        BYTE_REG_BITS_SET((rp->tx_thresh += 0x20), 0x80, ioaddr + TxConfig);
+                rhine_kick_tx_threshold(rp);
                 if (debug > 1)
                         netdev_info(dev, "Transmitter underrun, Tx threshold now %02x\n",
                                     rp->tx_thresh);
@@ -1923,9 +1932,7 @@ static void rhine_error(struct net_device *dev, int intr_status)
         if ((intr_status & IntrTxError) &&
             (intr_status & (IntrTxAborted |
              IntrTxUnderrun | IntrTxDescRace)) == 0) {
-                if (rp->tx_thresh < 0xE0) {
-                        BYTE_REG_BITS_SET((rp->tx_thresh += 0x20), 0x80, ioaddr + TxConfig);
-                }
+                rhine_kick_tx_threshold(rp);
                 if (debug > 1)
                         netdev_info(dev, "Unspecified error. Tx threshold now %02x\n",
                                     rp->tx_thresh);