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
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -2193,7 +2193,8 @@
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
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -11524,7 +11524,8 @@
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
--- a/drivers/net/wireless/prism54/islpci_eth.c
+++ b/drivers/net/wireless/prism54/islpci_eth.c
@@ -87,7 +87,6 @@
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 @@
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 @@
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 @@
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 @@
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
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -1348,6 +1348,7 @@
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..4430b8d9 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -819,11 +819,11 @@
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;
