net: use symbolic values for ndo_start_xmit() return codes

Convert magic values 1 and -1 to NETDEV_TX_BUSY and NETDEV_TX_LOCKED respectively.

0 (NETDEV_TX_OK) is not changed to keep the noise down, except in very few cases
where its in direct proximity to one of the other values.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 5 insertions, 5 deletions

diff --git a/drivers/net/wan/dlci.c b/drivers/net/wan/dlci.c
index e8d155c3e59f..2fa275a58f9d 100644
--- a/drivers/net/wan/dlci.c
+++ b/drivers/net/wan/dlci.c
@@ -205,15 +205,15 @@ static int dlci_transmit(struct sk_buff *skb, struct net_device *dev)
         {
                 case DLCI_RET_OK:
                         dev->stats.tx_packets++;
-                        ret = 0;
+                        ret = NETDEV_TX_OK;
                         break;
                         case DLCI_RET_ERR:
                         dev->stats.tx_errors++;
-                        ret = 0;
+                        ret = NETDEV_TX_OK;
                         break;
                         case DLCI_RET_DROP:
                         dev->stats.tx_dropped++;
-                        ret = 1;
+                        ret = NETDEV_TX_BUSY;
                         break;
         }
         /* Alan Cox recommends always returning 0, and always freeing the packet */
diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c
index f4211fe0f445..3fb9dbc88a1a 100644
--- a/drivers/net/wan/sbni.c
+++ b/drivers/net/wan/sbni.c
@@ -469,7 +469,7 @@ sbni_start_xmit( struct sk_buff  *skb,  struct net_device  *dev )
                 }
         }
 
-        return  1;
+        return NETDEV_TX_BUSY;
 }
 
 #else   /* CONFIG_SBNI_MULTILINE */
diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c
index 8130b79a8a99..e4ad7b6b52eb 100644
--- a/drivers/net/wan/wanxl.c
+++ b/drivers/net/wan/wanxl.c
@@ -283,7 +283,7 @@ static int wanxl_xmit(struct sk_buff *skb, struct net_device *dev)
 #endif
                 netif_stop_queue(dev);
                 spin_unlock_irq(&port->lock);
-                return 1;       /* request packet to be queued */
+                return NETDEV_TX_BUSY;       /* request packet to be queued */
         }
 
 #ifdef DEBUG_PKT