From d71a674922e7519edb477ecb585e7d29d69c7aa7 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Mon, 31 Aug 2009 19:50:47 +0000
Subject: [PATCH] wan: convert drivers to netdev_tx_t

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wan/cosa.c         |  7 ++++---
 drivers/net/wan/cycx_x25.c     |  8 ++++----
 drivers/net/wan/dlci.c         | 13 +++++++------
 drivers/net/wan/dscc4.c        |  6 ++++--
 drivers/net/wan/farsync.c      |  2 +-
 drivers/net/wan/hd64570.c      |  4 ++--
 drivers/net/wan/hd64572.c      |  4 ++--
 drivers/net/wan/hdlc.c         |  2 +-
 drivers/net/wan/hdlc_fr.c      |  2 +-
 drivers/net/wan/hdlc_raw_eth.c |  2 +-
 drivers/net/wan/hdlc_x25.c     |  6 +++---
 drivers/net/wan/hostess_sv11.c |  3 ++-
 drivers/net/wan/lapbether.c    |  3 ++-
 drivers/net/wan/lmc/lmc_main.c |  9 +++++----
 drivers/net/wan/sbni.c         |  7 ++++---
 drivers/net/wan/sdla.c         |  5 +++--
 drivers/net/wan/sealevel.c     |  3 ++-
 drivers/net/wan/wanxl.c        |  2 +-
 drivers/net/wan/x25_asy.c      |  3 ++-
 drivers/net/wan/z85230.c       |  9 ++++-----
 drivers/net/wan/z85230.h       |  3 ++-
 21 files changed, 57 insertions(+), 46 deletions(-)

diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 61581ee5f08c..66360a2a14c2 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -279,7 +279,7 @@ static int cosa_net_attach(struct net_device *dev, unsigned short encoding,
 static int cosa_net_open(struct net_device *d);
 static int cosa_net_close(struct net_device *d);
 static void cosa_net_timeout(struct net_device *d);
-static int cosa_net_tx(struct sk_buff *skb, struct net_device *d);
+static netdev_tx_t cosa_net_tx(struct sk_buff *skb, struct net_device *d);
 static char *cosa_net_setup_rx(struct channel_data *channel, int size);
 static int cosa_net_rx_done(struct channel_data *channel);
 static int cosa_net_tx_done(struct channel_data *channel, int size);
@@ -672,7 +672,8 @@ static int cosa_net_open(struct net_device *dev)
 	return 0;
 }
 
-static int cosa_net_tx(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t cosa_net_tx(struct sk_buff *skb,
+				     struct net_device *dev)
 {
 	struct channel_data *chan = dev_to_chan(dev);
 
@@ -680,7 +681,7 @@ static int cosa_net_tx(struct sk_buff *skb, struct net_device *dev)
 
 	chan->tx_skb = skb;
 	cosa_start_tx(chan, skb->data, skb->len);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 static void cosa_net_timeout(struct net_device *dev)
diff --git a/drivers/net/wan/cycx_x25.c b/drivers/net/wan/cycx_x25.c
index 4ae9bd297cc2..2573c18b6aa5 100644
--- a/drivers/net/wan/cycx_x25.c
+++ b/drivers/net/wan/cycx_x25.c
@@ -139,8 +139,8 @@ static int cycx_netdevice_hard_header(struct sk_buff *skb,
 				      const void *daddr, const void *saddr,
 				      unsigned len);
 static int cycx_netdevice_rebuild_header(struct sk_buff *skb);
-static int cycx_netdevice_hard_start_xmit(struct sk_buff *skb,
-					  struct net_device *dev);
+static netdev_tx_t cycx_netdevice_hard_start_xmit(struct sk_buff *skb,
+							struct net_device *dev);
 
 static struct net_device_stats *
 			cycx_netdevice_get_stats(struct net_device *dev);
@@ -593,8 +593,8 @@ static int cycx_netdevice_rebuild_header(struct sk_buff *skb)
  *    bottom half" (with interrupts enabled).
  * 2. Setting tbusy flag will inhibit further transmit requests from the
  *    protocol stack and can be used for flow control with protocol layer. */
-static int cycx_netdevice_hard_start_xmit(struct sk_buff *skb,
-					  struct net_device *dev)
+static netdev_tx_t cycx_netdevice_hard_start_xmit(struct sk_buff *skb,
+							struct net_device *dev)
 {
 	struct cycx_x25_channel *chan = netdev_priv(dev);
 	struct cycx_device *card = chan->card;
diff --git a/drivers/net/wan/dlci.c b/drivers/net/wan/dlci.c
index 8526b6d1ee4d..69d269d32b5b 100644
--- a/drivers/net/wan/dlci.c
+++ b/drivers/net/wan/dlci.c
@@ -186,12 +186,11 @@ static void dlci_receive(struct sk_buff *skb, struct net_device *dev)
 		dev_kfree_skb(skb);
 }
 
-static int dlci_transmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t dlci_transmit(struct sk_buff *skb,
+				       struct net_device *dev)
 {
 	struct dlci_local *dlp;
-	int					ret;
-
-	ret = 0;
+	netdev_tx_t ret;
 
 	if (!skb || !dev)
 		return NETDEV_TX_OK;
@@ -200,6 +199,8 @@ static int dlci_transmit(struct sk_buff *skb, struct net_device *dev)
 
 	netif_stop_queue(dev);
 	
+	/* This is hackish, overloads driver specific return values
+	   on top of normal transmit return! */
 	ret = dlp->slave->netdev_ops->ndo_start_xmit(skb, dlp->slave);
 	switch (ret)
 	{
@@ -207,11 +208,11 @@ static int dlci_transmit(struct sk_buff *skb, struct net_device *dev)
 			dev->stats.tx_packets++;
 			ret = NETDEV_TX_OK;
 			break;
-			case DLCI_RET_ERR:
+		case DLCI_RET_ERR:
 			dev->stats.tx_errors++;
 			ret = NETDEV_TX_OK;
 			break;
-			case DLCI_RET_DROP:
+		case DLCI_RET_DROP:
 			dev->stats.tx_dropped++;
 			ret = NETDEV_TX_BUSY;
 			break;
diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c
index cc00e0f89ecb..b2247bd0d492 100644
--- a/drivers/net/wan/dscc4.c
+++ b/drivers/net/wan/dscc4.c
@@ -359,7 +359,8 @@ static void dscc4_tx_irq(struct dscc4_pci_priv *, struct dscc4_dev_priv *);
 static int dscc4_found1(struct pci_dev *, void __iomem *ioaddr);
 static int dscc4_init_one(struct pci_dev *, const struct pci_device_id *ent);
 static int dscc4_open(struct net_device *);
-static int dscc4_start_xmit(struct sk_buff *, struct net_device *);
+static netdev_tx_t dscc4_start_xmit(struct sk_buff *,
+					  struct net_device *);
 static int dscc4_close(struct net_device *);
 static int dscc4_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 static int dscc4_init_ring(struct net_device *);
@@ -1148,7 +1149,8 @@ static int dscc4_tx_poll(struct dscc4_dev_priv *dpriv, struct net_device *dev)
 }
 #endif /* DSCC4_POLLING */
 
-static int dscc4_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t dscc4_start_xmit(struct sk_buff *skb,
+					  struct net_device *dev)
 {
 	struct dscc4_dev_priv *dpriv = dscc4_priv(dev);
 	struct dscc4_pci_priv *ppriv = dpriv->pci_priv;
diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c
index 20a1237a3d74..3e90eb816181 100644
--- a/drivers/net/wan/farsync.c
+++ b/drivers/net/wan/farsync.c
@@ -2274,7 +2274,7 @@ fst_tx_timeout(struct net_device *dev)
 	port->start = 0;
 }
 
-static int
+static netdev_tx_t
 fst_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct fst_card_info *card;
diff --git a/drivers/net/wan/hd64570.c b/drivers/net/wan/hd64570.c
index 1ea1ef6c3b96..80114c93bae7 100644
--- a/drivers/net/wan/hd64570.c
+++ b/drivers/net/wan/hd64570.c
@@ -620,7 +620,7 @@ static void sca_dump_rings(struct net_device *dev)
 #endif /* DEBUG_RINGS */
 
 
-static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t sca_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	port_t *port = dev_to_port(dev);
 	card_t *card = port_to_card(port);
@@ -674,7 +674,7 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
 	spin_unlock_irq(&port->lock);
 
 	dev_kfree_skb(skb);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 
diff --git a/drivers/net/wan/hd64572.c b/drivers/net/wan/hd64572.c
index f099c34a3ae2..84f01373e11f 100644
--- a/drivers/net/wan/hd64572.c
+++ b/drivers/net/wan/hd64572.c
@@ -562,7 +562,7 @@ static void sca_dump_rings(struct net_device *dev)
 #endif /* DEBUG_RINGS */
 
 
-static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t sca_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	port_t *port = dev_to_port(dev);
 	card_t *card = port->card;
@@ -601,7 +601,7 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
 	spin_unlock_irq(&port->lock);
 
 	dev_kfree_skb(skb);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 
diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index 7596eae1b35c..cc07236ea734 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -66,7 +66,7 @@ static int hdlc_rcv(struct sk_buff *skb, struct net_device *dev,
 	return hdlc->proto->netif_rx(skb);
 }
 
-int hdlc_start_xmit(struct sk_buff *skb, struct net_device *dev)
+netdev_tx_t hdlc_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	hdlc_device *hdlc = dev_to_hdlc(dev);
 
diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c
index 52438c76bf8a..840cff72a0f1 100644
--- a/drivers/net/wan/hdlc_fr.c
+++ b/drivers/net/wan/hdlc_fr.c
@@ -407,7 +407,7 @@ static int pvc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	return -EINVAL;
 }
 
-static int pvc_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t pvc_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	pvc_device *pvc = dev->ml_priv;
 
diff --git a/drivers/net/wan/hdlc_raw_eth.c b/drivers/net/wan/hdlc_raw_eth.c
index 49e68f5ca5f2..1b30fcc24145 100644
--- a/drivers/net/wan/hdlc_raw_eth.c
+++ b/drivers/net/wan/hdlc_raw_eth.c
@@ -25,7 +25,7 @@
 
 static int raw_eth_ioctl(struct net_device *dev, struct ifreq *ifr);
 
-static int eth_tx(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t eth_tx(struct sk_buff *skb, struct net_device *dev)
 {
 	int pad = ETH_ZLEN - skb->len;
 	if (pad > 0) {		/* Pad the frame with zeros */
diff --git a/drivers/net/wan/hdlc_x25.c b/drivers/net/wan/hdlc_x25.c
index b1dc29ed1583..aa9248f8eb1a 100644
--- a/drivers/net/wan/hdlc_x25.c
+++ b/drivers/net/wan/hdlc_x25.c
@@ -87,7 +87,7 @@ static void x25_data_transmit(struct net_device *dev, struct sk_buff *skb)
 
 
 
-static int x25_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t x25_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	int result;
 
@@ -98,7 +98,7 @@ static int x25_xmit(struct sk_buff *skb, struct net_device *dev)
 		skb_pull(skb, 1);
 		if ((result = lapb_data_request(dev, skb)) != LAPB_OK)
 			dev_kfree_skb(skb);
-		return 0;
+		return NETDEV_TX_OK;
 
 	case 1:
 		if ((result = lapb_connect_request(dev))!= LAPB_OK) {
@@ -129,7 +129,7 @@ static int x25_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 
 	dev_kfree_skb(skb);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 
diff --git a/drivers/net/wan/hostess_sv11.c b/drivers/net/wan/hostess_sv11.c
index 567d4f5062d6..15002c3d0d95 100644
--- a/drivers/net/wan/hostess_sv11.c
+++ b/drivers/net/wan/hostess_sv11.c
@@ -156,7 +156,8 @@ static int hostess_ioctl(struct net_device *d, struct ifreq *ifr, int cmd)
  *	Passed network frames, fire them downwind.
  */
 
-static int hostess_queue_xmit(struct sk_buff *skb, struct net_device *d)
+static netdev_tx_t hostess_queue_xmit(struct sk_buff *skb,
+					    struct net_device *d)
 {
 	return z8530_queue_xmit(&dev_to_sv(d)->chanA, skb);
 }
diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c
index aff4f6bdf3d5..d1e3c673e9b2 100644
--- a/drivers/net/wan/lapbether.c
+++ b/drivers/net/wan/lapbether.c
@@ -147,7 +147,8 @@ static int lapbeth_data_indication(struct net_device *dev, struct sk_buff *skb)
 /*
  *	Send a LAPB frame via an ethernet interface
  */
-static int lapbeth_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t lapbeth_xmit(struct sk_buff *skb,
+				      struct net_device *dev)
 {
 	int err;
 
diff --git a/drivers/net/wan/lmc/lmc_main.c b/drivers/net/wan/lmc/lmc_main.c
index 4b83d8872857..7ea71b33d2e9 100644
--- a/drivers/net/wan/lmc/lmc_main.c
+++ b/drivers/net/wan/lmc/lmc_main.c
@@ -89,7 +89,8 @@ MODULE_DEVICE_TABLE(pci, lmc_pci_tbl);
 MODULE_LICENSE("GPL v2");
 
 
-static int lmc_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static netdev_tx_t lmc_start_xmit(struct sk_buff *skb,
+					struct net_device *dev);
 static int lmc_rx (struct net_device *dev);
 static int lmc_open(struct net_device *dev);
 static int lmc_close(struct net_device *dev);
@@ -1423,12 +1424,12 @@ lmc_int_fail_out:
     return IRQ_RETVAL(handled);
 }
 
-static int lmc_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t lmc_start_xmit(struct sk_buff *skb,
+					struct net_device *dev)
 {
     lmc_softc_t *sc = dev_to_sc(dev);
     u32 flag;
     int entry;
-    int ret = NETDEV_TX_OK;
     unsigned long flags;
 
     lmc_trace(dev, "lmc_start_xmit in");
@@ -1510,7 +1511,7 @@ static int lmc_start_xmit(struct sk_buff *skb, struct net_device *dev)
     spin_unlock_irqrestore(&sc->lmc_lock, flags);
 
     lmc_trace(dev, "lmc_start_xmit_out");
-    return ret;
+    return NETDEV_TX_OK;
 }
 
 
diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c
index 85c02a2ec2e7..1cc24a45f003 100644
--- a/drivers/net/wan/sbni.c
+++ b/drivers/net/wan/sbni.c
@@ -114,7 +114,8 @@ static int  sbni_pci_probe( struct net_device  * );
 static struct net_device  *sbni_probe1(struct net_device *, unsigned long, int);
 static int  sbni_open( struct net_device * );
 static int  sbni_close( struct net_device * );
-static int  sbni_start_xmit( struct sk_buff *, struct net_device * );
+static netdev_tx_t sbni_start_xmit(struct sk_buff *,
+					 struct net_device * );
 static int  sbni_ioctl( struct net_device *, struct ifreq *, int );
 static void  set_multicast_list( struct net_device * );
 
@@ -444,7 +445,7 @@ sbni_probe1( struct net_device  *dev,  unsigned long  ioaddr,  int  irq )
 
 #ifdef CONFIG_SBNI_MULTILINE
 
-static int
+static netdev_tx_t
 sbni_start_xmit( struct sk_buff  *skb,  struct net_device  *dev )
 {
 	struct net_device  *p;
@@ -472,7 +473,7 @@ sbni_start_xmit( struct sk_buff  *skb,  struct net_device  *dev )
 
 #else	/* CONFIG_SBNI_MULTILINE */
 
-static int
+static netdev_tx_t
 sbni_start_xmit( struct sk_buff  *skb,  struct net_device  *dev )
 {
 	struct net_local  *nl  = netdev_priv(dev);
diff --git a/drivers/net/wan/sdla.c b/drivers/net/wan/sdla.c
index 1d637f407a0c..63c76458431c 100644
--- a/drivers/net/wan/sdla.c
+++ b/drivers/net/wan/sdla.c
@@ -651,7 +651,8 @@ static int sdla_dlci_conf(struct net_device *slave, struct net_device *master, i
  **************************/
 
 /* NOTE: the DLCI driver deals with freeing the SKB!! */
-static int sdla_transmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t sdla_transmit(struct sk_buff *skb,
+				       struct net_device *dev)
 {
 	struct frad_local *flp;
 	int               ret, addr, accept, i;
@@ -737,7 +738,7 @@ static int sdla_transmit(struct sk_buff *skb, struct net_device *dev)
 		if(flp->master[i]!=NULL)
 			netif_wake_queue(flp->master[i]);
 	}		
-	return(ret);
+	return NETDEV_TX_OK;
 }
 
 static void sdla_receive(struct net_device *dev)
diff --git a/drivers/net/wan/sealevel.c b/drivers/net/wan/sealevel.c
index 23b269027453..0c525e24b247 100644
--- a/drivers/net/wan/sealevel.c
+++ b/drivers/net/wan/sealevel.c
@@ -156,7 +156,8 @@ static int sealevel_ioctl(struct net_device *d, struct ifreq *ifr, int cmd)
  *	Passed network frames, fire them downwind.
  */
 
-static int sealevel_queue_xmit(struct sk_buff *skb, struct net_device *d)
+static netdev_tx_t sealevel_queue_xmit(struct sk_buff *skb,
+					     struct net_device *d)
 {
 	return z8530_queue_xmit(dev_to_chan(d)->chan, skb);
 }
diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c
index 03b76adbe5f0..daee8a0624ee 100644
--- a/drivers/net/wan/wanxl.c
+++ b/drivers/net/wan/wanxl.c
@@ -268,7 +268,7 @@ static irqreturn_t wanxl_intr(int irq, void* dev_id)
 
 
 
-static int wanxl_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t wanxl_xmit(struct sk_buff *skb, struct net_device *dev)
 {
         port_t *port = dev_to_port(dev);
 	desc_t *desc;
diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
index 1047920e742c..27945049c9e1 100644
--- a/drivers/net/wan/x25_asy.c
+++ b/drivers/net/wan/x25_asy.c
@@ -299,7 +299,8 @@ static void x25_asy_timeout(struct net_device *dev)
 
 /* Encapsulate an IP datagram and kick it into a TTY queue. */
 
-static int x25_asy_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t x25_asy_xmit(struct sk_buff *skb,
+				      struct net_device *dev)
 {
 	struct x25_asy *sl = netdev_priv(dev);
 	int err;
diff --git a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c
index ad4e79c4c5c3..0be7ec7299db 100644
--- a/drivers/net/wan/z85230.c
+++ b/drivers/net/wan/z85230.c
@@ -1727,15 +1727,14 @@ static inline int spans_boundary(struct sk_buff *skb)
  *	point.
  */
 
-int z8530_queue_xmit(struct z8530_channel *c, struct sk_buff *skb)
+netdev_tx_t z8530_queue_xmit(struct z8530_channel *c, struct sk_buff *skb)
 {
 	unsigned long flags;
 	
 	netif_stop_queue(c->netdevice);
 	if(c->tx_next_skb)
-	{
-		return 1;
-	}
+		return NETDEV_TX_BUSY;
+
 	
 	/* PC SPECIFIC - DMA limits */
 	
@@ -1767,7 +1766,7 @@ int z8530_queue_xmit(struct z8530_channel *c, struct sk_buff *skb)
 	z8530_tx_begin(c);
 	spin_unlock_irqrestore(c->lock, flags);
 	
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 EXPORT_SYMBOL(z8530_queue_xmit);
diff --git a/drivers/net/wan/z85230.h b/drivers/net/wan/z85230.h
index 85b3e785d484..f29d554fc07d 100644
--- a/drivers/net/wan/z85230.h
+++ b/drivers/net/wan/z85230.h
@@ -406,7 +406,8 @@ extern int z8530_sync_dma_close(struct net_device *, struct z8530_channel *);
 extern int z8530_sync_txdma_open(struct net_device *, struct z8530_channel *);
 extern int z8530_sync_txdma_close(struct net_device *, struct z8530_channel *);
 extern int z8530_channel_load(struct z8530_channel *, u8 *);
-extern int z8530_queue_xmit(struct z8530_channel *c, struct sk_buff *skb);
+extern netdev_tx_t z8530_queue_xmit(struct z8530_channel *c,
+					  struct sk_buff *skb);
 extern void z8530_null_rx(struct z8530_channel *c, struct sk_buff *skb);
 
 
-- 
2.20.1