net: fix network drivers ndo_start_xmit() return values (part 3)

net: fix network drivers ndo_start_xmit() return values (part 3)

Fix up wireless drivers that return an errno value to qdisc_restart(), causing
qdisc_restart() to print a warning an requeue/retransmit the skb.

- airo: transmission not implemented for chip, intention is to free and abort
- ipw2200: transmission not implemented for promiscous mode, intention is to
           drop
- prism54: intention is to drop
- wl3501_cs: intention appears to be to drop
- zd1201: error counter indicates intention is to drop

All drivers compile tested.

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

diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 9eabf4d..dfb30b9 100644 (file)
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -2193,7 +2193,8 @@ static int airo_start_xmit11(struct sk_buff *skb, struct net_device *dev) {
        if (test_bit(FLAG_MPI, &priv->flags)) {
                /* Not implemented yet for MPI350 */
                netif_stop_queue(dev);
-               return -ENETDOWN;
+               dev_kfree_skb_any(skb);
+               return NETDEV_TX_OK;
        }
 
        if ( skb == NULL ) {

diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index c3b3dfe..44c29b3 100644 (file)
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -11524,7 +11524,8 @@ static int ipw_prom_stop(struct net_device *dev)
 static int ipw_prom_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
        IPW_DEBUG_INFO("prom dev->xmit\n");
-       return -EOPNOTSUPP;
+       dev_kfree_skb(skb);
+       return NETDEV_TX_OK;
 }
 
 static const struct net_device_ops ipw_prom_netdev_ops = {

diff --git a/drivers/net/wireless/prism54/islpci_eth.c b/drivers/net/wireless/prism54/islpci_eth.c
index ef3ef45..8f62109 100644 (file)
--- a/drivers/net/wireless/prism54/islpci_eth.c
+++ b/drivers/net/wireless/prism54/islpci_eth.c
@@ -87,7 +87,6 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
        unsigned long flags;
        unsigned char wds_mac[6];
        u32 curr_frag;
-       int err = 0;
 
 #if VERBOSE > SHOW_ERROR_MESSAGES
        DEBUG(SHOW_FUNCTION_CALLS, "islpci_eth_transmit \n");
@@ -107,8 +106,6 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
                isl38xx_w32_flush(priv->device_base, ISL38XX_DEV_INT_UPDATE,
                                  ISL38XX_DEV_INT_REG);
                udelay(ISL38XX_WRITEIO_DELAY);
-
-               err = -EBUSY;
                goto drop_free;
        }
        /* Check alignment and WDS frame formatting. The start of the packet should
@@ -152,7 +149,6 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
                        if (unlikely(newskb == NULL)) {
                                printk(KERN_ERR "%s: Cannot allocate skb\n",
                                       ndev->name);
-                               err = -ENOMEM;
                                goto drop_free;
                        }
                        newskb_offset = (4 - (long) newskb->data) & 0x03;
@@ -197,8 +193,6 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
        if (unlikely(pci_map_address == 0)) {
                printk(KERN_WARNING "%s: cannot map buffer to PCI\n",
                       ndev->name);
-
-               err = -EIO;
                goto drop_free;
        }
        /* Place the fragment in the control block structure. */
@@ -246,7 +240,7 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
        ndev->stats.tx_dropped++;
        spin_unlock_irqrestore(&priv->slock, flags);
        dev_kfree_skb(skb);
-       return err;
+       return NETDEV_TX_OK;
 }
 
 static inline int

diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index 1f64d60..e3e96bb 100644 (file)
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -1348,6 +1348,7 @@ static int wl3501_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
        if (rc) {
                ++dev->stats.tx_dropped;
                netif_stop_queue(dev);
+               rc = NETDEV_TX_OK;
        } else {
                ++dev->stats.tx_packets;
                dev->stats.tx_bytes += skb->len;

diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index 5fabd9c..4430b8d 100644 (file)
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -819,11 +819,11 @@ static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
        if (err) {
                dev->stats.tx_errors++;
                netif_start_queue(dev);
-               return err;
+       } else {
+               dev->stats.tx_packets++;
+               dev->stats.tx_bytes += skb->len;
+               dev->trans_start = jiffies;
        }
-       dev->stats.tx_packets++;
-       dev->stats.tx_bytes += skb->len;
-       dev->trans_start = jiffies;
        kfree_skb(skb);
 
        return 0;