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>

78 files changed, 106 insertions, 106 deletions

diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index cb8943da4f12..34d54e7281fd 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -1069,7 +1069,7 @@ isdn_net_xmit(struct net_device *ndev, struct sk_buff *skb)
         lp = isdn_net_get_locked_lp(nd);
         if (!lp) {
                 printk(KERN_WARNING "%s: all channels busy - requeuing!\n", ndev->name);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         /* we have our lp locked from now on */
 
@@ -1273,14 +1273,14 @@ isdn_net_start_xmit(struct sk_buff *skb, struct net_device *ndev)
                                         spin_unlock_irqrestore(&dev->lock, flags);
                                         isdn_net_dial();        /* Initiate dialing */
                                         netif_stop_queue(ndev);
-                                        return 1;       /* let upper layer requeue skb packet */
+                                        return NETDEV_TX_BUSY;  /* let upper layer requeue skb packet */
                                 }
 #endif
                                 /* Initiate dialing */
                                 spin_unlock_irqrestore(&dev->lock, flags);
                                 isdn_net_dial();
                                 isdn_net_device_stop_queue(lp);
-                                return 1;
+                                return NETDEV_TX_BUSY;
                         } else {
                                 isdn_net_unreachable(ndev, skb,
                                                      "No phone number");
diff --git a/drivers/message/fusion/mptlan.c b/drivers/message/fusion/mptlan.c
index c2804f26cb44..a9e48e28b1dc 100644
--- a/drivers/message/fusion/mptlan.c
+++ b/drivers/message/fusion/mptlan.c
@@ -703,7 +703,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
 
                 printk (KERN_ERR "%s: no tx context available: %u\n",
                         __func__, priv->mpt_txfidx_tail);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         mf = mpt_get_msg_frame(LanCtx, mpt_dev);
@@ -713,7 +713,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
 
                 printk (KERN_ERR "%s: Unable to alloc request frame\n",
                         __func__);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         ctx = priv->mpt_txfidx[priv->mpt_txfidx_tail--];
diff --git a/drivers/net/3c505.c b/drivers/net/3c505.c
index b28499459cd6..f71b35402755 100644
--- a/drivers/net/3c505.c
+++ b/drivers/net/3c505.c
@@ -1088,7 +1088,7 @@ static int elp_start_xmit(struct sk_buff *skb, struct net_device *dev)
                         pr_debug("%s: failed to transmit packet\n", dev->name);
                 }
                 spin_unlock_irqrestore(&adapter->lock, flags);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         if (elp_debug >= 3)
                 pr_debug("%s: packet of length %d sent\n", dev->name, (int) skb->len);
diff --git a/drivers/net/3c515.c b/drivers/net/3c515.c
index 7fd0ff743757..3e00fa8ea65f 100644
--- a/drivers/net/3c515.c
+++ b/drivers/net/3c515.c
@@ -1014,7 +1014,7 @@ static int corkscrew_start_xmit(struct sk_buff *skb,
                 int i;
 
                 if (vp->tx_full)        /* No room to transmit with */
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 if (vp->cur_tx != 0)
                         prev_entry = &vp->tx_ring[(vp->cur_tx - 1) % TX_RING_SIZE];
                 else
diff --git a/drivers/net/3c527.c b/drivers/net/3c527.c
index c10ca30458f6..aaa8a9f405d4 100644
--- a/drivers/net/3c527.c
+++ b/drivers/net/3c527.c
@@ -1030,7 +1030,7 @@ static int mc32_send_packet(struct sk_buff *skb, struct net_device *dev)
         netif_stop_queue(dev);
 
         if(atomic_read(&lp->tx_count)==0) {
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         if (skb_padto(skb, ETH_ZLEN)) {
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index a6e8a2da3bcd..c34aee91250b 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -2107,7 +2107,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
                         pr_warning("%s: BUG! Tx Ring full, refusing to send buffer.\n",
                                    dev->name);
                 netif_stop_queue(dev);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         vp->tx_skbuff[entry] = skb;
diff --git a/drivers/net/7990.c b/drivers/net/7990.c
index 7a331acc34ad..69f5b7d298a6 100644
--- a/drivers/net/7990.c
+++ b/drivers/net/7990.c
@@ -541,7 +541,7 @@ int lance_start_xmit (struct sk_buff *skb, struct net_device *dev)
         unsigned long flags;
 
         if (!TX_BUFFS_AVAIL)
-                return -1;
+                return NETDEV_TX_LOCKED;
 
         netif_stop_queue (dev);
 
diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index c9fc0ff14a4d..50efde11ea6c 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -756,7 +756,7 @@ static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev)
                 spin_unlock_irqrestore(&cp->lock, intr_flags);
                 pr_err(PFX "%s: BUG! Tx Ring full when queue awake!\n",
                        dev->name);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
 #if CP_VLAN_TAG_USED
diff --git a/drivers/net/a2065.c b/drivers/net/a2065.c
index 02f64d578641..85a18175730b 100644
--- a/drivers/net/a2065.c
+++ b/drivers/net/a2065.c
@@ -564,7 +564,7 @@ static int lance_start_xmit (struct sk_buff *skb, struct net_device *dev)
 
         if (!TX_BUFFS_AVAIL){
                 local_irq_restore(flags);
-                return -1;
+                return NETDEV_TX_LOCKED;
         }
 
 #ifdef DEBUG_DRIVER
diff --git a/drivers/net/arm/at91_ether.c b/drivers/net/arm/at91_ether.c
index 7f4bc8ae5462..2e7419a61191 100644
--- a/drivers/net/arm/at91_ether.c
+++ b/drivers/net/arm/at91_ether.c
@@ -829,7 +829,7 @@ static int at91ether_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 dev->trans_start = jiffies;
         } else {
                 printk(KERN_ERR "at91_ether.c: at91ether_start_xmit() called, but device is busy!\n");
-                return 1;       /* if we return anything but zero, dev.c:1055 calls kfree_skb(skb)
+                return NETDEV_TX_BUSY;  /* if we return anything but zero, dev.c:1055 calls kfree_skb(skb)
                                 on this skb, he also reports -ENETDOWN and printk's, so either
                                 we free and return(0) or don't free and return 1 */
         }
diff --git a/drivers/net/arm/ether3.c b/drivers/net/arm/ether3.c
index ec8a1ae1e887..455037134aa3 100644
--- a/drivers/net/arm/ether3.c
+++ b/drivers/net/arm/ether3.c
@@ -526,7 +526,7 @@ ether3_sendpacket(struct sk_buff *skb, struct net_device *dev)
 
         if (priv(dev)->tx_tail == next_ptr) {
                 local_irq_restore(flags);
-                return 1;       /* unable to queue */
+                return NETDEV_TX_BUSY;  /* unable to queue */
         }
 
         dev->trans_start = jiffies;
diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
index d58c105fc779..d3c734f4d679 100644
--- a/drivers/net/au1000_eth.c
+++ b/drivers/net/au1000_eth.c
@@ -957,7 +957,7 @@ static int au1000_tx(struct sk_buff *skb, struct net_device *dev)
                 /* We've wrapped around and the transmitter is still busy */
                 netif_stop_queue(dev);
                 aup->tx_full = 1;
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         else if (buff_stat & TX_T_DONE) {
                 update_tx_stats(dev, ptxd->status);
diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index f5222764061c..eb066673c2a0 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -2934,7 +2934,7 @@ static int cas_start_xmit(struct sk_buff *skb, struct net_device *dev)
          *      individual queues.
          */
         if (cas_xmit_tx_ringN(cp, ring++ & N_TX_RINGS_MASK, skb))
-                return 1;
+                return NETDEV_TX_BUSY;
         dev->trans_start = jiffies;
         return 0;
 }
diff --git a/drivers/net/cs89x0.c b/drivers/net/cs89x0.c
index 7433b88eed7e..3eee666a9cd2 100644
--- a/drivers/net/cs89x0.c
+++ b/drivers/net/cs89x0.c
@@ -1551,7 +1551,7 @@ static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
 
                 spin_unlock_irq(&lp->lock);
                 if (net_debug) printk("cs89x0: Tx buffer not free!\n");
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         /* Write the contents of the packet */
         writewords(dev->base_addr, TX_FRAME_PORT,skb->data,(skb->len+1) >>1);
diff --git a/drivers/net/de600.c b/drivers/net/de600.c
index c866ca99a068..e1af089064bc 100644
--- a/drivers/net/de600.c
+++ b/drivers/net/de600.c
@@ -168,14 +168,14 @@ static int de600_start_xmit(struct sk_buff *skb, struct net_device *dev)
         if (free_tx_pages <= 0) {       /* Do timeouts, to avoid hangs. */
                 tickssofar = jiffies - dev->trans_start;
                 if (tickssofar < 5)
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 /* else */
                 printk(KERN_WARNING "%s: transmit timed out (%d), %s?\n", dev->name, tickssofar, "network cable problem");
                 /* Restart the adapter. */
                 spin_lock_irqsave(&de600_lock, flags);
                 if (adapter_init(dev)) {
                         spin_unlock_irqrestore(&de600_lock, flags);
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 }
                 spin_unlock_irqrestore(&de600_lock, flags);
         }
@@ -199,7 +199,7 @@ static int de600_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 if (was_down || (de600_read_byte(READ_DATA, dev) != 0xde)) {
                         if (adapter_init(dev)) {
                                 spin_unlock_irqrestore(&de600_lock, flags);
-                                return 1;
+                                return NETDEV_TX_BUSY;
                         }
                 }
         }
diff --git a/drivers/net/de620.c b/drivers/net/de620.c
index 039bc1acadd3..55d2bb67cffa 100644
--- a/drivers/net/de620.c
+++ b/drivers/net/de620.c
@@ -531,7 +531,7 @@ static int de620_start_xmit(struct sk_buff *skb, struct net_device *dev)
         case (TXBF0 | TXBF1): /* NONE!!! */
                 printk(KERN_WARNING "%s: No tx-buffer available!\n", dev->name);
                 spin_unlock_irqrestore(&de620_lock, flags);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         de620_write_block(dev, buffer, skb->len, len-skb->len);
 
diff --git a/drivers/net/defxx.c b/drivers/net/defxx.c
index 4ec055dc7174..102b8d439714 100644
--- a/drivers/net/defxx.c
+++ b/drivers/net/defxx.c
@@ -3318,7 +3318,7 @@ static int dfx_xmt_queue_pkt(
         {
                 skb_pull(skb,3);
                 spin_unlock_irqrestore(&bp->lock, flags);
-                return(1);                      /* requeue packet for later */
+                return NETDEV_TX_BUSY;  /* requeue packet for later */
         }
 
         /*
diff --git a/drivers/net/depca.c b/drivers/net/depca.c
index 9301eb28d9e2..97ea2d6d3fe1 100644
--- a/drivers/net/depca.c
+++ b/drivers/net/depca.c
@@ -957,7 +957,7 @@ static int depca_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 if (TX_BUFFS_AVAIL)
                         netif_start_queue(dev);
         } else
-                status = -1;
+                status = NETDEV_TX_LOCKED;
 
       out:
         return status;
@@ -1839,7 +1839,7 @@ static int load_packet(struct net_device *dev, struct sk_buff *skb)
 
                 lp->tx_new = (++end) & lp->txRingMask;  /* update current pointers */
         } else {
-                status = -1;
+                status = NETDEV_TX_LOCKED;
         }
 
         return status;
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index e402e91bf188..dd771dea6ae6 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -756,7 +756,7 @@ dm9000_start_xmit(struct sk_buff *skb, struct net_device *dev)
         dm9000_dbg(db, 3, "%s:\n", __func__);
 
         if (db->tx_pkt_cnt > 1)
-                return 1;
+                return NETDEV_TX_BUSY;
 
         spin_lock_irqsave(&db->lock, flags);
 
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 119dc5300f9d..e52a2018e91e 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -1716,7 +1716,7 @@ static int e100_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
                 /* This is a hard error - log it. */
                 DPRINTK(TX_ERR, DEBUG, "Out of Tx resources, returning skb\n");
                 netif_stop_queue(netdev);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         netdev->trans_start = jiffies;
diff --git a/drivers/net/ewrk3.c b/drivers/net/ewrk3.c
index 1a685a04d4b2..1e9723281405 100644
--- a/drivers/net/ewrk3.c
+++ b/drivers/net/ewrk3.c
@@ -873,7 +873,7 @@ static int ewrk3_queue_pkt (struct sk_buff *skb, struct net_device *dev)
 err_out:
         ENABLE_IRQs;
         spin_unlock_irq (&lp->hw_lock);
-        return 1;
+        return NETDEV_TX_BUSY;
 }
 
 /*
diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index 28db6919c526..0f19b743749b 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -290,7 +290,7 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
         if (!fep->link) {
                 /* Link is down or autonegotiation is in progress. */
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         spin_lock_irqsave(&fep->hw_lock, flags);
@@ -305,7 +305,7 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
                  */
                 printk("%s: tx queue full!.\n", dev->name);
                 spin_unlock_irqrestore(&fep->hw_lock, flags);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         /* Clear all of the status flags */
diff --git a/drivers/net/hamachi.c b/drivers/net/hamachi.c
index 26151fa35df5..9d5b62cb30f7 100644
--- a/drivers/net/hamachi.c
+++ b/drivers/net/hamachi.c
@@ -1280,7 +1280,7 @@ static int hamachi_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 status=readw(hmp->base + TxStatus);
                 if( !(status & 0x0001) || (status & 0x0002))
                         writew(0x0001, hmp->base + TxCmd);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         /* Caution: the write order is important here, set the field
diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c
index bb78c11559cd..5e4b7afd0683 100644
--- a/drivers/net/hamradio/baycom_epp.c
+++ b/drivers/net/hamradio/baycom_epp.c
@@ -777,7 +777,7 @@ static int baycom_send_packet(struct sk_buff *skb, struct net_device *dev)
                 return 0;
         }
         if (bc->skb)
-                return -1;
+                return NETDEV_TX_LOCKED;
         /* strip KISS byte */
         if (skb->len >= HDLCDRV_MAXFLEN+1 || skb->len < 3) {
                 dev_kfree_skb(skb);
diff --git a/drivers/net/hamradio/hdlcdrv.c b/drivers/net/hamradio/hdlcdrv.c
index 61de56e45eed..d034f8ca63cb 100644
--- a/drivers/net/hamradio/hdlcdrv.c
+++ b/drivers/net/hamradio/hdlcdrv.c
@@ -409,7 +409,7 @@ static int hdlcdrv_send_packet(struct sk_buff *skb, struct net_device *dev)
                 return 0;
         }
         if (sm->skb)
-                return -1;
+                return NETDEV_TX_LOCKED;
         netif_stop_queue(dev);
         sm->skb = skb;
         return 0;
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 032c0db4c410..fda2fc83e9a1 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -531,7 +531,7 @@ static int ax_xmit(struct sk_buff *skb, struct net_device *dev)
 
         if (!netif_running(dev))  {
                 printk(KERN_ERR "mkiss: %s: xmit call when iface is down\n", dev->name);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         if (netif_queue_stopped(dev)) {
@@ -541,7 +541,7 @@ static int ax_xmit(struct sk_buff *skb, struct net_device *dev)
                  */
                 if (time_before(jiffies, dev->trans_start + 20 * HZ)) {
                         /* 20 sec timeout not reached */
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 }
 
                 printk(KERN_ERR "mkiss: %s: transmit timed out, %s?\n", dev->name,
diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c
index 806533c831c7..beb84213b671 100644
--- a/drivers/net/ibm_newemac/core.c
+++ b/drivers/net/ibm_newemac/core.c
@@ -1484,7 +1484,7 @@ static int emac_start_xmit_sg(struct sk_buff *skb, struct net_device *ndev)
  stop_queue:
         netif_stop_queue(ndev);
         DBG2(dev, "stopped TX queue" NL);
-        return 1;
+        return NETDEV_TX_BUSY;
 }
 
 /* Tx lock BHs */
diff --git a/drivers/net/irda/au1k_ir.c b/drivers/net/irda/au1k_ir.c
index 269153eedd26..c4361d466597 100644
--- a/drivers/net/irda/au1k_ir.c
+++ b/drivers/net/irda/au1k_ir.c
@@ -512,13 +512,13 @@ static int au1k_irda_hard_xmit(struct sk_buff *skb, struct net_device *dev)
                 printk(KERN_DEBUG "%s: tx_full\n", dev->name);
                 netif_stop_queue(dev);
                 aup->tx_full = 1;
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         else if (((aup->tx_head + 1) & (NUM_IR_DESC - 1)) == aup->tx_tail) {
                 printk(KERN_DEBUG "%s: tx_full\n", dev->name);
                 netif_stop_queue(dev);
                 aup->tx_full = 1;
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         pDB = aup->tx_db_inuse[aup->tx_head];
diff --git a/drivers/net/irda/sir_dev.c b/drivers/net/irda/sir_dev.c
index d940809762ec..fd0796c3db3c 100644
--- a/drivers/net/irda/sir_dev.c
+++ b/drivers/net/irda/sir_dev.c
@@ -607,7 +607,7 @@ static int sirdev_hard_xmit(struct sk_buff *skb, struct net_device *ndev)
                                  * stopped so the network layer will retry after the
                                  * fsm completes and wakes the queue.
                                  */
-                                 return 1;
+                                 return NETDEV_TX_BUSY;
                         }
                         else if (unlikely(err)) {
                                 /* other fatal error - forget the speed change and
diff --git a/drivers/net/lib8390.c b/drivers/net/lib8390.c
index 789b6cb744b2..f28c23343009 100644
--- a/drivers/net/lib8390.c
+++ b/drivers/net/lib8390.c
@@ -370,7 +370,7 @@ static int __ei_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 spin_unlock(&ei_local->page_lock);
                 enable_irq_lockdep_irqrestore(dev->irq, &flags);
                 dev->stats.tx_errors++;
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         /*
diff --git a/drivers/net/mac89x0.c b/drivers/net/mac89x0.c
index e24175a39460..dab45339d3a8 100644
--- a/drivers/net/mac89x0.c
+++ b/drivers/net/mac89x0.c
@@ -400,7 +400,7 @@ net_send_packet(struct sk_buff *skb, struct net_device *dev)
                 /* Gasp!  It hasn't.  But that shouldn't happen since
                    we're waiting for TxOk, so return 1 and requeue this packet. */
                 local_irq_restore(flags);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         /* Write the contents of the packet */
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 722265920da8..5b5c25368d1e 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -645,7 +645,7 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
                         "BUG! Tx Ring full when queue awake!\n");
                 dev_dbg(&bp->pdev->dev, "tx_head = %u, tx_tail = %u\n",
                         bp->tx_head, bp->tx_tail);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         entry = bp->tx_head;
diff --git a/drivers/net/mace.c b/drivers/net/mace.c
index 1ad740bc8878..1427755c224d 100644
--- a/drivers/net/mace.c
+++ b/drivers/net/mace.c
@@ -547,7 +547,7 @@ static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev)
         netif_stop_queue(dev);
         mp->tx_fullup = 1;
         spin_unlock_irqrestore(&mp->lock, flags);
-        return 1;               /* can't take it at the moment */
+        return NETDEV_TX_BUSY;          /* can't take it at the moment */
     }
     spin_unlock_irqrestore(&mp->lock, flags);
 
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index c9a30d3a66fb..1f6e36ea669e 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -2687,7 +2687,7 @@ again:
                 /* we are out of transmit resources */
                 tx->stop_queue++;
                 netif_tx_stop_queue(netdev_queue);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         /* Setup checksum offloading, if needed */
diff --git a/drivers/net/myri_sbus.c b/drivers/net/myri_sbus.c
index 9a802adba9a3..5f0758bda6b3 100644
--- a/drivers/net/myri_sbus.c
+++ b/drivers/net/myri_sbus.c
@@ -640,7 +640,7 @@ static int myri_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
         if (!TX_BUFFS_AVAIL(head, tail)) {
                 DTX(("no buffs available, returning 1\n"));
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         spin_lock_irqsave(&mp->irq_lock, flags);
diff --git a/drivers/net/ni65.c b/drivers/net/ni65.c
index 6474f02bf783..1f10ed603e20 100644
--- a/drivers/net/ni65.c
+++ b/drivers/net/ni65.c
@@ -1165,7 +1165,7 @@ static int ni65_send_packet(struct sk_buff *skb, struct net_device *dev)
 
         if (test_and_set_bit(0, (void*)&p->lock)) {
                 printk(KERN_ERR "%s: Queue was locked.\n", dev->name);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         {
diff --git a/drivers/net/ns83820.c b/drivers/net/ns83820.c
index 940962ae8f23..1576ac07216e 100644
--- a/drivers/net/ns83820.c
+++ b/drivers/net/ns83820.c
@@ -1097,7 +1097,7 @@ again:
         if (unlikely(dev->CFG_cache & CFG_LNKSTS)) {
                 netif_stop_queue(ndev);
                 if (unlikely(dev->CFG_cache & CFG_LNKSTS))
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 netif_start_queue(ndev);
         }
 
@@ -1115,7 +1115,7 @@ again:
                         netif_start_queue(ndev);
                         goto again;
                 }
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         if (free_idx == dev->tx_intr_idx) {
diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c
index 15b8fe61695b..0e38d80fd255 100644
--- a/drivers/net/pcmcia/axnet_cs.c
+++ b/drivers/net/pcmcia/axnet_cs.c
@@ -1130,7 +1130,7 @@ static int axnet_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 outb_p(ENISR_ALL, e8390_base + EN0_IMR);
                 spin_unlock_irqrestore(&ei_local->page_lock, flags);
                 dev->stats.tx_errors++;
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         /*
diff --git a/drivers/net/pcmcia/fmvj18x_cs.c b/drivers/net/pcmcia/fmvj18x_cs.c
index 81e6660a433a..479d5b494371 100644
--- a/drivers/net/pcmcia/fmvj18x_cs.c
+++ b/drivers/net/pcmcia/fmvj18x_cs.c
@@ -877,7 +877,7 @@ static int fjn_start_xmit(struct sk_buff *skb, struct net_device *dev)
         if (length > ETH_FRAME_LEN) {
             printk(KERN_NOTICE "%s: Attempting to send a large packet"
                    " (%d bytes).\n", dev->name, length);
-            return 1;
+            return NETDEV_TX_BUSY;
         }
 
         DEBUG(4, "%s: Transmitting a packet of length %lu.\n",
diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index 48dbb35747d8..37e05d3ab893 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -1388,7 +1388,7 @@ static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev)
         dev->stats.tx_aborted_errors++;
         printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
                dev->name);
-        return 1;
+        return NETDEV_TX_BUSY;
     }
     smc->saved_skb = skb;
 
diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c
index a3685c0d22fc..ef37d22c7e1d 100644
--- a/drivers/net/pcmcia/xirc2ps_cs.c
+++ b/drivers/net/pcmcia/xirc2ps_cs.c
@@ -1399,7 +1399,7 @@ do_start_xmit(struct sk_buff *skb, struct net_device *dev)
     DEBUG(2 + (okay ? 2 : 0), "%s: avail. tx space=%u%s\n",
           dev->name, freespace, okay ? " (okay)":" (not enough)");
     if (!okay) { /* not enough space */
-        return 1;  /* upper layer may decide to requeue this packet */
+        return NETDEV_TX_BUSY;  /* upper layer may decide to requeue this packet */
     }
     /* send the packet */
     PutWord(XIRCREG_EDP, (u_short)pktlen);
diff --git a/drivers/net/plip.c b/drivers/net/plip.c
index 0be0f0b164f3..7a62f781fef2 100644
--- a/drivers/net/plip.c
+++ b/drivers/net/plip.c
@@ -955,12 +955,12 @@ plip_tx_packet(struct sk_buff *skb, struct net_device *dev)
         struct plip_local *snd = &nl->snd_data;
 
         if (netif_queue_stopped(dev))
-                return 1;
+                return NETDEV_TX_BUSY;
 
         /* We may need to grab the bus */
         if (!nl->port_owner) {
                 if (parport_claim(nl->pardev))
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 nl->port_owner = 1;
         }
 
@@ -969,7 +969,7 @@ plip_tx_packet(struct sk_buff *skb, struct net_device *dev)
         if (skb->len > dev->mtu + dev->hard_header_len) {
                 printk(KERN_WARNING "%s: packet too big, %d.\n", dev->name, (int)skb->len);
                 netif_start_queue (dev);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         if (net_debug > 2)
diff --git a/drivers/net/sb1250-mac.c b/drivers/net/sb1250-mac.c
index 7a4b9fbddbaf..d8c9cf1b901d 100644
--- a/drivers/net/sb1250-mac.c
+++ b/drivers/net/sb1250-mac.c
@@ -2084,7 +2084,7 @@ static int sbmac_start_tx(struct sk_buff *skb, struct net_device *dev)
                 netif_stop_queue(dev);
                 spin_unlock_irqrestore(&sc->sbm_lock, flags);
 
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         dev->trans_start = jiffies;
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 0709b7512467..341882f959f3 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -1108,7 +1108,7 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
                 if (!sh_eth_txfree(ndev)) {
                         netif_stop_queue(ndev);
                         spin_unlock_irqrestore(&mdp->lock, flags);
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 }
         }
         spin_unlock_irqrestore(&mdp->lock, flags);
diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c
index 2d4617b3e208..a9a897bb42d5 100644
--- a/drivers/net/sis900.c
+++ b/drivers/net/sis900.c
@@ -1584,7 +1584,7 @@ sis900_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
         /* Don't transmit data before the complete of auto-negotiation */
         if(!sis_priv->autong_complete){
                 netif_stop_queue(net_dev);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         spin_lock_irqsave(&sis_priv->lock, flags);
diff --git a/drivers/net/skfp/skfddi.c b/drivers/net/skfp/skfddi.c
index 19d343c42a21..088fe26484e7 100644
--- a/drivers/net/skfp/skfddi.c
+++ b/drivers/net/skfp/skfddi.c
@@ -1082,7 +1082,7 @@ static int skfp_send_pkt(struct sk_buff *skb, struct net_device *dev)
         if (bp->QueueSkb == 0) {        // return with tbusy set: queue full
 
                 netif_stop_queue(dev);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         bp->QueueSkb--;
         skb_queue_tail(&bp->SendSkbQueue, skb);
diff --git a/drivers/net/smc9194.c b/drivers/net/smc9194.c
index 9a7973a54116..e02471b2f2b5 100644
--- a/drivers/net/smc9194.c
+++ b/drivers/net/smc9194.c
@@ -503,7 +503,7 @@ static int smc_wait_to_send_packet( struct sk_buff * skb, struct net_device * de
                 /* THIS SHOULD NEVER HAPPEN. */
                 dev->stats.tx_aborted_errors++;
                 printk(CARDNAME": Bad Craziness - sent packet while busy.\n" );
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         lp->saved_skb = skb;
 
diff --git a/drivers/net/sonic.c b/drivers/net/sonic.c
index 211e805c1223..e4255d829380 100644
--- a/drivers/net/sonic.c
+++ b/drivers/net/sonic.c
@@ -223,7 +223,7 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
         if (!laddr) {
                 printk(KERN_ERR "%s: failed to map tx DMA buffer.\n", dev->name);
                 dev_kfree_skb(skb);
-                return 1;
+                return NETDEV_TX_BUSY
         }
 
         sonic_tda_put(dev, entry, SONIC_TD_STATUS, 0);       /* clear status */
diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c
index fcb943fca4f1..838cce8b8fff 100644
--- a/drivers/net/starfire.c
+++ b/drivers/net/starfire.c
@@ -1236,7 +1236,7 @@ static int start_tx(struct sk_buff *skb, struct net_device *dev)
          */
         if ((np->cur_tx - np->dirty_tx) + skb_num_frags(skb) * 2 > TX_RING_SIZE) {
                 netif_stop_queue(dev);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
 #if defined(ZEROCOPY) && defined(HAS_BROKEN_FIRMWARE)
diff --git a/drivers/net/sun3_82586.c b/drivers/net/sun3_82586.c
index a39c0b9ba8b6..7bb27426dbd6 100644
--- a/drivers/net/sun3_82586.c
+++ b/drivers/net/sun3_82586.c
@@ -1023,7 +1023,7 @@ static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev)
 #if(NUM_XMIT_BUFFS > 1)
         if(test_and_set_bit(0,(void *) &p->lock)) {
                 printk("%s: Queue was locked\n",dev->name);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         else
 #endif
diff --git a/drivers/net/sun3lance.c b/drivers/net/sun3lance.c
index 9bd9dadb8534..534dfe3eef6f 100644
--- a/drivers/net/sun3lance.c
+++ b/drivers/net/sun3lance.c
@@ -526,7 +526,7 @@ static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
         if (netif_queue_stopped(dev)) {
                 int tickssofar = jiffies - dev->trans_start;
                 if (tickssofar < 20)
-                        return( 1 );
+                        return NETDEV_TX_BUSY;
 
                 DPRINTK( 1, ( "%s: transmit timed out, status %04x, resetting.\n",
                                           dev->name, DREG ));
@@ -577,7 +577,7 @@ static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
         if (test_and_set_bit( 0, (void*)&lp->lock ) != 0) {
                 printk( "%s: tx queue lock!.\n", dev->name);
                 /* don't clear dev->tbusy flag. */
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         AREG = CSR0;
diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index 4e9bd380a5c2..4ef729198e10 100644
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -2275,7 +2275,7 @@ static int happy_meal_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 spin_unlock_irq(&hp->happy_lock);
                 printk(KERN_ERR "%s: BUG! Tx Ring full when queue awake!\n",
                        dev->name);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         entry = hp->tx_new;
diff --git a/drivers/net/tlan.c b/drivers/net/tlan.c
index aa6964922d5e..384cb5e28397 100644
--- a/drivers/net/tlan.c
+++ b/drivers/net/tlan.c
@@ -1111,7 +1111,7 @@ static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev )
                           dev->name, priv->txHead, priv->txTail );
                 netif_stop_queue(dev);
                 priv->txBusyCount++;
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         tail_list->forward = 0;
diff --git a/drivers/net/tokenring/3c359.c b/drivers/net/tokenring/3c359.c
index 534c0f38483c..13dbc59bfe42 100644
--- a/drivers/net/tokenring/3c359.c
+++ b/drivers/net/tokenring/3c359.c
@@ -1243,7 +1243,7 @@ static int xl_xmit(struct sk_buff *skb, struct net_device *dev)
                 return 0;
         } else {
                 spin_unlock_irqrestore(&xl_priv->xl_lock,flags) ; 
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
 }
diff --git a/drivers/net/tokenring/lanstreamer.c b/drivers/net/tokenring/lanstreamer.c
index 2e70ee8f1459..b358bbbce33a 100644
--- a/drivers/net/tokenring/lanstreamer.c
+++ b/drivers/net/tokenring/lanstreamer.c
@@ -1187,7 +1187,7 @@ static int streamer_xmit(struct sk_buff *skb, struct net_device *dev)
         } else {
                 netif_stop_queue(dev);
                 spin_unlock_irqrestore(&streamer_priv->streamer_lock,flags);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 }
 
diff --git a/drivers/net/tokenring/olympic.c b/drivers/net/tokenring/olympic.c
index d068a9d36883..c36974925c15 100644
--- a/drivers/net/tokenring/olympic.c
+++ b/drivers/net/tokenring/olympic.c
@@ -1055,7 +1055,7 @@ static int olympic_xmit(struct sk_buff *skb, struct net_device *dev)
                 return 0;
         } else {
                 spin_unlock_irqrestore(&olympic_priv->olympic_lock,flags);
-                return 1;
+                return NETDEV_TX_BUSY;
         } 
 
 }
diff --git a/drivers/net/tokenring/smctr.c b/drivers/net/tokenring/smctr.c
index a91d9c55d78e..54ad4ed03374 100644
--- a/drivers/net/tokenring/smctr.c
+++ b/drivers/net/tokenring/smctr.c
@@ -4601,7 +4601,7 @@ static int smctr_send_packet(struct sk_buff *skb, struct net_device *dev)
         netif_stop_queue(dev);
 
         if(tp->QueueSkb == 0)
-                return (1);     /* Return with tbusy set: queue full */
+                return NETDEV_TX_BUSY;     /* Return with tbusy set: queue full */
 
         tp->QueueSkb--;
         skb_queue_tail(&tp->SendSkbQueue, skb);
diff --git a/drivers/net/tokenring/tms380tr.c b/drivers/net/tokenring/tms380tr.c
index b11bb72dc7ab..a2eab72b507a 100644
--- a/drivers/net/tokenring/tms380tr.c
+++ b/drivers/net/tokenring/tms380tr.c
@@ -633,7 +633,7 @@ static int tms380tr_hardware_send_packet(struct sk_buff *skb, struct net_device
                 if (tms380tr_debug > 0)
                         printk(KERN_DEBUG "%s: No free TPL\n", dev->name);
                 spin_unlock_irqrestore(&tp->lock, flags);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         dmabuf = 0;
diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index e7609a05032d..81f054dbb88d 100644
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -612,7 +612,7 @@ static int de_start_xmit (struct sk_buff *skb, struct net_device *dev)
         if (tx_free == 0) {
                 netif_stop_queue(dev);
                 spin_unlock_irq(&de->lock);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         tx_free--;
 
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index 32256179a205..eb72d2e9ab3d 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -1461,12 +1461,12 @@ de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev)
 {
     struct de4x5_private *lp = netdev_priv(dev);
     u_long iobase = dev->base_addr;
-    int status = 0;
+    int status = NETDEV_TX_OK;
     u_long flags = 0;
 
     netif_stop_queue(dev);
     if (!lp->tx_enable) {                   /* Cannot send for now */
-        return -1;
+        return NETDEV_TX_LOCKED;
     }
 
     /*
@@ -1480,7 +1480,7 @@ de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev)
 
     /* Test if cache is already locked - requeue skb if so */
     if (test_and_set_bit(0, (void *)&lp->cache.lock) && !lp->interrupt)
-        return -1;
+        return NETDEV_TX_LOCKED;
 
     /* Transmit descriptor ring full or stale skb */
     if (netif_queue_stopped(dev) || (u_long) lp->tx_skb[lp->tx_new] > 1) {
diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c
index f2e669974c78..8e78f003f08f 100644
--- a/drivers/net/tulip/dmfe.c
+++ b/drivers/net/tulip/dmfe.c
@@ -686,7 +686,7 @@ static int dmfe_start_xmit(struct sk_buff *skb, struct DEVICE *dev)
                 spin_unlock_irqrestore(&db->lock, flags);
                 printk(KERN_ERR DRV_NAME ": No Tx resource %ld\n",
                        db->tx_queue_cnt);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         /* Disable NIC interrupt */
diff --git a/drivers/net/tulip/uli526x.c b/drivers/net/tulip/uli526x.c
index 8761a5a5bd79..9277ce8febe4 100644
--- a/drivers/net/tulip/uli526x.c
+++ b/drivers/net/tulip/uli526x.c
@@ -591,7 +591,7 @@ static int uli526x_start_xmit(struct sk_buff *skb, struct net_device *dev)
         if (db->tx_packet_cnt >= TX_FREE_DESC_CNT) {
                 spin_unlock_irqrestore(&db->lock, flags);
                 printk(KERN_ERR DRV_NAME ": No Tx resource %ld\n", db->tx_packet_cnt);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         /* Disable NIC interrupt */
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
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index dfb30b9c4267..c70604f0329e 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -1935,7 +1935,7 @@ static int mpi_start_xmit(struct sk_buff *skb, struct net_device *dev) {
                 netif_stop_queue (dev);
                 if (npacks > MAXTXQ) {
                         dev->stats.tx_fifo_errors++;
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 }
                 skb_queue_tail (&ai->txq, skb);
                 return 0;
@@ -2139,7 +2139,7 @@ static int airo_start_xmit(struct sk_buff *skb, struct net_device *dev) {
 
                 if (i == MAX_FIDS / 2) {
                         dev->stats.tx_fifo_errors++;
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 }
         }
         /* check min length*/
@@ -2211,7 +2211,7 @@ static int airo_start_xmit11(struct sk_buff *skb, struct net_device *dev) {
 
                 if (i == MAX_FIDS) {
                         dev->stats.tx_fifo_errors++;
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 }
         }
         /* check min length*/
diff --git a/drivers/net/wireless/arlan-main.c b/drivers/net/wireless/arlan-main.c
index a54a67c425c8..d84caf198a23 100644
--- a/drivers/net/wireless/arlan-main.c
+++ b/drivers/net/wireless/arlan-main.c
@@ -1199,7 +1199,7 @@ bad_end:
         arlan_process_interrupt(dev);
         netif_stop_queue (dev);
         ARLAN_DEBUG_EXIT("arlan_tx");
-        return 1;
+        return NETDEV_TX_BUSY;
 }
 
 
diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c
index 27eef8fb7107..291a94bd46fd 100644
--- a/drivers/net/wireless/atmel.c
+++ b/drivers/net/wireless/atmel.c
@@ -818,7 +818,7 @@ static int start_tx(struct sk_buff *skb, struct net_device *dev)
                 spin_unlock_irqrestore(&priv->irqlock, flags);
                 spin_unlock_bh(&priv->timerlock);
                 netif_stop_queue(dev);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         frame_ctl = IEEE80211_FTYPE_DATA;
diff --git a/drivers/net/wireless/hostap/hostap_80211_tx.c b/drivers/net/wireless/hostap/hostap_80211_tx.c
index 6693423f63fe..d313b005114e 100644
--- a/drivers/net/wireless/hostap/hostap_80211_tx.c
+++ b/drivers/net/wireless/hostap/hostap_80211_tx.c
@@ -377,7 +377,7 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
         struct hostap_interface *iface;
         local_info_t *local;
-        int ret = 1;
+        int ret = NETDEV_TX_BUSY;
         u16 fc;
         struct hostap_tx_data tx;
         ap_tx_ret tx_ret;
diff --git a/drivers/net/wireless/ipw2x00/libipw_tx.c b/drivers/net/wireless/ipw2x00/libipw_tx.c
index 65a8195b3d90..da2ad5437ce5 100644
--- a/drivers/net/wireless/ipw2x00/libipw_tx.c
+++ b/drivers/net/wireless/ipw2x00/libipw_tx.c
@@ -539,7 +539,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
         spin_unlock_irqrestore(&ieee->lock, flags);
         netif_stop_queue(dev);
         dev->stats.tx_errors++;
-        return 1;
+        return NETDEV_TX_BUSY;
 }
 EXPORT_SYMBOL(ieee80211_xmit);
 
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 22e71856aa24..b10b0383dfa5 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -923,7 +923,7 @@ static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
         if (!(pcmcia_dev_present(link))) {
                 DEBUG(2, "ray_dev_start_xmit - device not present\n");
-                return -1;
+                return NETDEV_TX_LOCKED;
         }
         DEBUG(3, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
         if (local->authentication_state == NEED_TO_AUTH) {
@@ -931,7 +931,7 @@ static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
                         local->authentication_state = AUTHENTICATED;
                         netif_stop_queue(dev);
-                        return 1;
+                        return NETDEV_TX_BUSY;
                 }
         }
 
@@ -944,7 +944,7 @@ static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev)
         case XMIT_NO_CCS:
         case XMIT_NEED_AUTH:
                 netif_stop_queue(dev);
-                return 1;
+                return NETDEV_TX_BUSY;
         case XMIT_NO_INTR:
         case XMIT_MSG_BAD:
         case XMIT_OK:
diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index b7b0c46adb46..38366a56b71f 100644
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -1540,7 +1540,7 @@ static int strip_xmit(struct sk_buff *skb, struct net_device *dev)
         if (!netif_running(dev)) {
                 printk(KERN_ERR "%s: xmit call when iface is down\n",
                        dev->name);
-                return (1);
+                return NETDEV_TX_BUSY;
         }
 
         netif_stop_queue(dev);
diff --git a/drivers/net/wireless/wavelan.c b/drivers/net/wireless/wavelan.c
index 25d27b64f528..ab7fc5c0c8b4 100644
--- a/drivers/net/wireless/wavelan.c
+++ b/drivers/net/wireless/wavelan.c
@@ -2867,7 +2867,7 @@ static int wavelan_packet_xmit(struct sk_buff *skb, struct net_device * dev)
                 spin_unlock_irqrestore(&lp->spinlock, flags);
                 /* Check that we can continue */
                 if (lp->tx_n_in_use == (NTXBLOCKS - 1))
-                        return 1;
+                        return NETDEV_TX_BUSY;
         }
 
         /* Do we need some padding? */
@@ -2880,10 +2880,10 @@ static int wavelan_packet_xmit(struct sk_buff *skb, struct net_device * dev)
                 skb_copy_from_linear_data(skb, data, skb->len);
                 /* Write packet on the card */
                 if(wv_packet_write(dev, data, ETH_ZLEN))
-                        return 1;       /* We failed */
+                        return NETDEV_TX_BUSY;  /* We failed */
         }
         else if(wv_packet_write(dev, skb->data, skb->len))
-                return 1;       /* We failed */
+                return NETDEV_TX_BUSY;  /* We failed */
 
 
         dev_kfree_skb(skb);
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index be716e45f7ac..aec9e5d3cf4b 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1315,9 +1315,9 @@ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev)
                 return NETDEV_TX_BUSY;
         }
         dev->trans_start = jiffies;
-        rc = netiucv_transmit_skb(privptr->conn, skb) != 0;
+        rc = netiucv_transmit_skb(privptr->conn, skb);
         netiucv_clear_busy(dev);
-        return rc;
+        return rc ? NETDEV_TX_BUSY : NETDEV_TX_OK;
 }
 
 /**
diff --git a/drivers/staging/et131x/et131x_netdev.c b/drivers/staging/et131x/et131x_netdev.c
index 951c73d5db20..59e99cc7786b 100644
--- a/drivers/staging/et131x/et131x_netdev.c
+++ b/drivers/staging/et131x/et131x_netdev.c
@@ -585,11 +585,11 @@ int et131x_tx(struct sk_buff *skb, struct net_device *netdev)
                          * available
                          */
                         netif_stop_queue(netdev);
-                        status = 1;
+                        status = NETDEV_TX_BUSY;
                 } else {
                         DBG_WARNING(et131x_dbginfo,
                                     "Misc error; drop packet\n");
-                        status = 0;
+                        status = NETDEV_TX_OK;
                 }
         }
 
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index 33a0687252af..1294e05fcf13 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -814,7 +814,7 @@ int ieee80211_xmit(struct sk_buff *skb,
         spin_unlock_irqrestore(&ieee->lock, flags);
         netif_stop_queue(dev);
         stats->tx_errors++;
-        return 1;
+        return NETDEV_TX_BUSY;
 
 }
 
diff --git a/drivers/staging/wlan-ng/p80211netdev.c b/drivers/staging/wlan-ng/p80211netdev.c
index 393e4df70dfd..bc0d764d851a 100644
--- a/drivers/staging/wlan-ng/p80211netdev.c
+++ b/drivers/staging/wlan-ng/p80211netdev.c
@@ -432,21 +432,21 @@ static int p80211knetdev_hard_start_xmit(struct sk_buff *skb,
                 /* success and more buf */
                 /* avail, re: hw_txdata */
                 netif_wake_queue(wlandev->netdev);
-                result = 0;
+                result = NETDEV_TX_OK;
         } else if (txresult == 1) {
                 /* success, no more avail */
                 pr_debug("txframe success, no more bufs\n");
                 /* netdev->tbusy = 1;  don't set here, irqhdlr */
                 /*   may have already cleared it */
-                result = 0;
+                result = NETDEV_TX_OK;
         } else if (txresult == 2) {
                 /* alloc failure, drop frame */
                 pr_debug("txframe returned alloc_fail\n");
-                result = 1;
+                result = NETDEV_TX_BUSY;
         } else {
                 /* buffer full or queue busy, drop frame. */
                 pr_debug("txframe returned full or busy\n");
-                result = 1;
+                result = NETDEV_TX_BUSY;
         }
 
 failed:
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 4007770f7ed2..016f63b39028 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -520,7 +520,7 @@ static int eth_start_xmit(struct sk_buff *skb, struct net_device *net)
          */
         if (list_empty(&dev->tx_reqs)) {
                 spin_unlock_irqrestore(&dev->req_lock, flags);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         req = container_of(dev->tx_reqs.next, struct usb_request, list);