#include <linux/mii.h>
#include <linux/usb.h>
#include <linux/usb/usbnet.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/pm_runtime.h>
#define DRIVER_VERSION "22-Aug-2005"
/* take the first altsetting with in-bulk + out-bulk;
* remember any status endpoint, just in case;
- * ignore other endpoints and altsetttings.
+ * ignore other endpoints and altsettings.
*/
for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
struct usb_host_endpoint *e;
}
EXPORT_SYMBOL_GPL(usbnet_get_endpoints);
-static u8 nibble(unsigned char c)
-{
- if (likely(isdigit(c)))
- return c - '0';
- c = toupper(c);
- if (likely(isxdigit(c)))
- return 10 + c - 'A';
- return 0;
-}
-
int usbnet_get_ethernet_addr(struct usbnet *dev, int iMACAddress)
{
int tmp, i;
}
for (i = tmp = 0; i < 6; i++, tmp += 2)
dev->net->dev_addr [i] =
- (nibble(buf [tmp]) << 4) + nibble(buf [tmp + 1]);
+ (hex_to_bin(buf[tmp]) << 4) + hex_to_bin(buf[tmp + 1]);
return 0;
}
EXPORT_SYMBOL_GPL(usbnet_get_ethernet_addr);
dev->net->stats.rx_packets++;
dev->net->stats.rx_bytes += skb->len;
- if (netif_msg_rx_status (dev))
- netdev_dbg(dev->net, "< rx, len %zu, type 0x%x\n",
- skb->len + sizeof (struct ethhdr), skb->protocol);
+ netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n",
+ skb->len + sizeof (struct ethhdr), skb->protocol);
memset (skb->cb, 0, sizeof (struct skb_data));
+
+ if (skb_defer_rx_timestamp(skb))
+ return;
+
status = netif_rx (skb);
- if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev))
- netdev_dbg(dev->net, "netif_rx status %d\n", status);
+ if (status != NET_RX_SUCCESS)
+ netif_dbg(dev, rx_err, dev->net,
+ "netif_rx status %d\n", status);
}
EXPORT_SYMBOL_GPL(usbnet_skb_return);
static void rx_complete (struct urb *urb);
-static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
+static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
{
struct sk_buff *skb;
struct skb_data *entry;
size_t size = dev->rx_urb_size;
if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) {
- if (netif_msg_rx_err (dev))
- netdev_dbg(dev->net, "no rx skb\n");
+ netif_dbg(dev, rx_err, dev->net, "no rx skb\n");
usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
usb_free_urb (urb);
- return;
+ return -ENOMEM;
}
skb_reserve (skb, NET_IP_ALIGN);
usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
break;
case -ENODEV:
- if (netif_msg_ifdown (dev))
- netdev_dbg(dev->net, "device gone\n");
+ netif_dbg(dev, ifdown, dev->net, "device gone\n");
netif_device_detach (dev->net);
break;
+ case -EHOSTUNREACH:
+ retval = -ENOLINK;
+ break;
default:
- if (netif_msg_rx_err (dev))
- netdev_dbg(dev->net, "rx submit, %d\n", retval);
+ netif_dbg(dev, rx_err, dev->net,
+ "rx submit, %d\n", retval);
tasklet_schedule (&dev->bh);
break;
case 0:
__skb_queue_tail (&dev->rxq, skb);
}
} else {
- if (netif_msg_ifdown (dev))
- netdev_dbg(dev->net, "rx: stopped\n");
+ netif_dbg(dev, ifdown, dev->net, "rx: stopped\n");
retval = -ENOLINK;
}
spin_unlock_irqrestore (&dev->rxq.lock, lockflags);
dev_kfree_skb_any (skb);
usb_free_urb (urb);
}
+ return retval;
}
static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
{
if (dev->driver_info->rx_fixup &&
- !dev->driver_info->rx_fixup (dev, skb))
- goto error;
+ !dev->driver_info->rx_fixup (dev, skb)) {
+ /* With RX_ASSEMBLE, rx_fixup() must update counters */
+ if (!(dev->driver_info->flags & FLAG_RX_ASSEMBLE))
+ dev->net->stats.rx_errors++;
+ goto done;
+ }
// else network stack removes extra byte if we forced a short packet
- if (skb->len)
- usbnet_skb_return (dev, skb);
- else {
- if (netif_msg_rx_err (dev))
- netdev_dbg(dev->net, "drop\n");
-error:
- dev->net->stats.rx_errors++;
- skb_queue_tail (&dev->done, skb);
+ if (skb->len) {
+ /* all data was already cloned from skb inside the driver */
+ if (dev->driver_info->flags & FLAG_MULTI_PACKET)
+ dev_kfree_skb_any(skb);
+ else
+ usbnet_skb_return(dev, skb);
+ return;
}
+
+ netif_dbg(dev, rx_err, dev->net, "drop\n");
+ dev->net->stats.rx_errors++;
+done:
+ skb_queue_tail(&dev->done, skb);
}
/*-------------------------------------------------------------------------*/
entry->state = rx_cleanup;
dev->net->stats.rx_errors++;
dev->net->stats.rx_length_errors++;
- if (netif_msg_rx_err (dev))
- netdev_dbg(dev->net, "rx length %d\n", skb->len);
+ netif_dbg(dev, rx_err, dev->net,
+ "rx length %d\n", skb->len);
}
break;
/* software-driven interface shutdown */
case -ECONNRESET: /* async unlink */
case -ESHUTDOWN: /* hardware gone */
- if (netif_msg_ifdown (dev))
- netdev_dbg(dev->net, "rx shutdown, code %d\n", urb_status);
+ netif_dbg(dev, ifdown, dev->net,
+ "rx shutdown, code %d\n", urb_status);
goto block;
/* we get controller i/o faults during khubd disconnect() delays.
dev->net->stats.rx_errors++;
if (!timer_pending (&dev->delay)) {
mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES);
- if (netif_msg_link (dev))
- netdev_dbg(dev->net, "rx throttle %d\n", urb_status);
+ netif_dbg(dev, link, dev->net,
+ "rx throttle %d\n", urb_status);
}
block:
entry->state = rx_cleanup;
default:
entry->state = rx_cleanup;
dev->net->stats.rx_errors++;
- if (netif_msg_rx_err (dev))
- netdev_dbg(dev->net, "rx status %d\n", urb_status);
+ netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status);
break;
}
}
usb_free_urb (urb);
}
- if (netif_msg_rx_err (dev))
- netdev_dbg(dev->net, "no read resubmitted\n");
+ netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n");
}
static void intr_complete (struct urb *urb)
/* software-driven interface shutdown */
case -ENOENT: /* urb killed */
case -ESHUTDOWN: /* hardware gone */
- if (netif_msg_ifdown (dev))
- netdev_dbg(dev->net, "intr shutdown, code %d\n", status);
+ netif_dbg(dev, ifdown, dev->net,
+ "intr shutdown, code %d\n", status);
return;
/* NOTE: not throttling like RX/TX, since this endpoint
memset(urb->transfer_buffer, 0, urb->transfer_buffer_length);
status = usb_submit_urb (urb, GFP_ATOMIC);
- if (status != 0 && netif_msg_timer (dev))
- netdev_err(dev->net, "intr resubmit --> %d\n", status);
+ if (status != 0)
+ netif_err(dev, timer, dev->net,
+ "intr resubmit --> %d\n", status);
}
/*-------------------------------------------------------------------------*/
{
set_bit(EVENT_RX_PAUSED, &dev->flags);
- if (netif_msg_rx_status(dev))
- netdev_dbg(dev->net, "paused rx queue enabled\n");
+ netif_dbg(dev, rx_status, dev->net, "paused rx queue enabled\n");
}
EXPORT_SYMBOL_GPL(usbnet_pause_rx);
tasklet_schedule(&dev->bh);
- if (netif_msg_rx_status(dev))
- netdev_dbg(dev->net, "paused rx queue disabled, %d skbs requeued\n",
- num);
+ netif_dbg(dev, rx_status, dev->net,
+ "paused rx queue disabled, %d skbs requeued\n", num);
}
EXPORT_SYMBOL_GPL(usbnet_resume_rx);
entry = (struct skb_data *) skb->cb;
urb = entry->urb;
+ spin_unlock_irqrestore(&q->lock, flags);
// during some PM-driven resume scenarios,
// these (async) unlinks complete immediately
retval = usb_unlink_urb (urb);
netdev_dbg(dev->net, "unlink urb err, %d\n", retval);
else
count++;
+ spin_lock_irqsave(&q->lock, flags);
}
spin_unlock_irqrestore (&q->lock, flags);
return count;
while (!skb_queue_empty(&dev->rxq)
&& !skb_queue_empty(&dev->txq)
&& !skb_queue_empty(&dev->done)) {
- schedule_timeout(UNLINK_TIMEOUT_MS);
+ schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS));
set_current_state(TASK_UNINTERRUPTIBLE);
- if (netif_msg_ifdown(dev))
- netdev_dbg(dev->net, "waited for %d urb completions\n",
- temp);
+ netif_dbg(dev, ifdown, dev->net,
+ "waited for %d urb completions\n", temp);
}
set_current_state(TASK_RUNNING);
dev->wait = NULL;
struct driver_info *info = dev->driver_info;
int retval;
+ clear_bit(EVENT_DEV_OPEN, &dev->flags);
netif_stop_queue (net);
- if (netif_msg_ifdown (dev))
- netdev_info(dev->net, "stop stats: rx/tx %ld/%ld, errs %ld/%ld\n",
- net->stats.rx_packets, net->stats.tx_packets,
- net->stats.rx_errors, net->stats.tx_errors);
+ netif_info(dev, ifdown, dev->net,
+ "stop stats: rx/tx %lu/%lu, errs %lu/%lu\n",
+ net->stats.rx_packets, net->stats.tx_packets,
+ net->stats.rx_errors, net->stats.tx_errors);
/* allow minidriver to stop correctly (wireless devices to turn off
* radio etc) */
if (info->stop) {
retval = info->stop(dev);
- if (retval < 0 && netif_msg_ifdown(dev))
- netdev_info(dev->net,
- "stop fail (%d) usbnet usb-%s-%s, %s\n",
- retval,
- dev->udev->bus->bus_name, dev->udev->devpath,
- info->description);
+ if (retval < 0)
+ netif_info(dev, ifdown, dev->net,
+ "stop fail (%d) usbnet usb-%s-%s, %s\n",
+ retval,
+ dev->udev->bus->bus_name, dev->udev->devpath,
+ info->description);
}
if (!(info->flags & FLAG_AVOID_UNLINK_URBS))
struct driver_info *info = dev->driver_info;
if ((retval = usb_autopm_get_interface(dev->intf)) < 0) {
- if (netif_msg_ifup (dev))
- netdev_info(dev->net,
- "resumption fail (%d) usbnet usb-%s-%s, %s\n",
- retval,
- dev->udev->bus->bus_name,
- dev->udev->devpath,
- info->description);
+ netif_info(dev, ifup, dev->net,
+ "resumption fail (%d) usbnet usb-%s-%s, %s\n",
+ retval,
+ dev->udev->bus->bus_name,
+ dev->udev->devpath,
+ info->description);
goto done_nopm;
}
// put into "known safe" state
if (info->reset && (retval = info->reset (dev)) < 0) {
- if (netif_msg_ifup (dev))
- netdev_info(dev->net,
- "open reset fail (%d) usbnet usb-%s-%s, %s\n",
- retval,
- dev->udev->bus->bus_name,
- dev->udev->devpath,
- info->description);
+ netif_info(dev, ifup, dev->net,
+ "open reset fail (%d) usbnet usb-%s-%s, %s\n",
+ retval,
+ dev->udev->bus->bus_name,
+ dev->udev->devpath,
+ info->description);
goto done;
}
// insist peer be connected
if (info->check_connect && (retval = info->check_connect (dev)) < 0) {
- if (netif_msg_ifup (dev))
- netdev_dbg(dev->net, "can't open; %d\n", retval);
+ netif_dbg(dev, ifup, dev->net, "can't open; %d\n", retval);
goto done;
}
if (dev->interrupt) {
retval = usb_submit_urb (dev->interrupt, GFP_KERNEL);
if (retval < 0) {
- if (netif_msg_ifup (dev))
- netdev_err(dev->net, "intr submit %d\n", retval);
+ netif_err(dev, ifup, dev->net,
+ "intr submit %d\n", retval);
goto done;
}
}
+ set_bit(EVENT_DEV_OPEN, &dev->flags);
netif_start_queue (net);
- if (netif_msg_ifup (dev)) {
- char *framing;
-
- if (dev->driver_info->flags & FLAG_FRAMING_NC)
- framing = "NetChip";
- else if (dev->driver_info->flags & FLAG_FRAMING_GL)
- framing = "GeneSys";
- else if (dev->driver_info->flags & FLAG_FRAMING_Z)
- framing = "Zaurus";
- else if (dev->driver_info->flags & FLAG_FRAMING_RN)
- framing = "RNDIS";
- else if (dev->driver_info->flags & FLAG_FRAMING_AX)
- framing = "ASIX";
- else
- framing = "simple";
-
- netdev_info(dev->net, "open: enable queueing (rx %d, tx %d) mtu %d %s framing\n",
- (int)RX_QLEN(dev), (int)TX_QLEN(dev),
- dev->net->mtu, framing);
- }
+ netif_info(dev, ifup, dev->net,
+ "open: enable queueing (rx %d, tx %d) mtu %d %s framing\n",
+ (int)RX_QLEN(dev), (int)TX_QLEN(dev),
+ dev->net->mtu,
+ (dev->driver_info->flags & FLAG_FRAMING_NC) ? "NetChip" :
+ (dev->driver_info->flags & FLAG_FRAMING_GL) ? "GeneSys" :
+ (dev->driver_info->flags & FLAG_FRAMING_Z) ? "Zaurus" :
+ (dev->driver_info->flags & FLAG_FRAMING_RN) ? "RNDIS" :
+ (dev->driver_info->flags & FLAG_FRAMING_AX) ? "ASIX" :
+ "simple");
// delay posting reads until we're fully open
tasklet_schedule (&dev->bh);
usb_autopm_put_interface(dev->intf);
}
return retval;
+
done:
usb_autopm_put_interface(dev->intf);
done_nopm:
/* tasklet could resubmit itself forever if memory is tight */
if (test_bit (EVENT_RX_MEMORY, &dev->flags)) {
struct urb *urb = NULL;
+ int resched = 1;
if (netif_running (dev->net))
urb = usb_alloc_urb (0, GFP_KERNEL);
if (urb != NULL) {
clear_bit (EVENT_RX_MEMORY, &dev->flags);
status = usb_autopm_get_interface(dev->intf);
- if (status < 0)
+ if (status < 0) {
+ usb_free_urb(urb);
goto fail_lowmem;
- rx_submit (dev, urb, GFP_KERNEL);
+ }
+ if (rx_submit (dev, urb, GFP_KERNEL) == -ENOLINK)
+ resched = 0;
usb_autopm_put_interface(dev->intf);
fail_lowmem:
- tasklet_schedule (&dev->bh);
+ if (resched)
+ tasklet_schedule (&dev->bh);
}
}
struct usbnet *dev = entry->dev;
if (urb->status == 0) {
- dev->net->stats.tx_packets++;
+ if (!(dev->driver_info->flags & FLAG_MULTI_PACKET))
+ dev->net->stats.tx_packets++;
dev->net->stats.tx_bytes += entry->length;
} else {
dev->net->stats.tx_errors++;
if (!timer_pending (&dev->delay)) {
mod_timer (&dev->delay,
jiffies + THROTTLE_JIFFIES);
- if (netif_msg_link (dev))
- netdev_dbg(dev->net, "tx throttle %d\n",
- urb->status);
+ netif_dbg(dev, link, dev->net,
+ "tx throttle %d\n", urb->status);
}
netif_stop_queue (dev->net);
break;
default:
- if (netif_msg_tx_err (dev))
- netdev_dbg(dev->net, "tx err %d\n",
- entry->urb->status);
+ netif_dbg(dev, tx_err, dev->net,
+ "tx err %d\n", entry->urb->status);
break;
}
}
unsigned long flags;
int retval;
+ if (skb)
+ skb_tx_timestamp(skb);
+
// some devices want funky USB-level framing, for
// win32 driver (usually) and/or hardware quirks
if (info->tx_fixup) {
skb = info->tx_fixup (dev, skb, GFP_ATOMIC);
if (!skb) {
- if (netif_msg_tx_err (dev))
- netdev_dbg(dev->net, "can't tx_fixup skb\n");
- goto drop;
+ if (netif_msg_tx_err(dev)) {
+ netif_dbg(dev, tx_err, dev->net, "can't tx_fixup skb\n");
+ goto drop;
+ } else {
+ /* cdc_ncm collected packet; waits for more */
+ goto not_drop;
+ }
}
}
length = skb->len;
if (!(urb = usb_alloc_urb (0, GFP_ATOMIC))) {
- if (netif_msg_tx_err (dev))
- netdev_dbg(dev->net, "no urb\n");
+ netif_dbg(dev, tx_err, dev->net, "no urb\n");
goto drop;
}
/* don't assume the hardware handles USB_ZERO_PACKET
* NOTE: strictly conforming cdc-ether devices should expect
* the ZLP here, but ignore the one-byte packet.
+ * NOTE2: CDC NCM specification is different from CDC ECM when
+ * handling ZLP/short packets, so cdc_ncm driver will make short
+ * packet itself if needed.
*/
- if (!(info->flags & FLAG_SEND_ZLP) && (length % dev->maxpacket) == 0) {
- urb->transfer_buffer_length++;
- if (skb_tailroom(skb)) {
- skb->data[skb->len] = 0;
- __skb_put(skb, 1);
- }
+ if (length % dev->maxpacket == 0) {
+ if (!(info->flags & FLAG_SEND_ZLP)) {
+ if (!(info->flags & FLAG_MULTI_PACKET)) {
+ urb->transfer_buffer_length++;
+ if (skb_tailroom(skb)) {
+ skb->data[skb->len] = 0;
+ __skb_put(skb, 1);
+ }
+ }
+ } else
+ urb->transfer_flags |= URB_ZERO_PACKET;
}
spin_lock_irqsave(&dev->txq.lock, flags);
break;
default:
usb_autopm_put_interface_async(dev->intf);
- if (netif_msg_tx_err (dev))
- netdev_dbg(dev->net, "tx: submit urb err %d\n", retval);
+ netif_dbg(dev, tx_err, dev->net,
+ "tx: submit urb err %d\n", retval);
break;
case 0:
net->trans_start = jiffies;
spin_unlock_irqrestore (&dev->txq.lock, flags);
if (retval) {
- if (netif_msg_tx_err (dev))
- netdev_dbg(dev->net, "drop, code %d\n", retval);
+ netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", retval);
drop:
dev->net->stats.tx_dropped++;
+not_drop:
if (skb)
dev_kfree_skb_any (skb);
usb_free_urb (urb);
- } else if (netif_msg_tx_queued (dev)) {
- netdev_dbg(dev->net, "> tx, len %d, type 0x%x\n",
- length, skb->protocol);
- }
+ } else
+ netif_dbg(dev, tx_queued, dev->net,
+ "> tx, len %d, type 0x%x\n", length, skb->protocol);
#ifdef CONFIG_PM
deferred:
#endif
// don't refill the queue all at once
for (i = 0; i < 10 && dev->rxq.qlen < qlen; i++) {
urb = usb_alloc_urb (0, GFP_ATOMIC);
- if (urb != NULL)
- rx_submit (dev, urb, GFP_ATOMIC);
+ if (urb != NULL) {
+ if (rx_submit (dev, urb, GFP_ATOMIC) ==
+ -ENOLINK)
+ return;
+ }
}
- if (temp != dev->rxq.qlen && netif_msg_link (dev))
- netdev_dbg(dev->net, "rxqlen %d --> %d\n",
- temp, dev->rxq.qlen);
+ if (temp != dev->rxq.qlen)
+ netif_dbg(dev, link, dev->net,
+ "rxqlen %d --> %d\n",
+ temp, dev->rxq.qlen);
if (dev->rxq.qlen < qlen)
tasklet_schedule (&dev->bh);
}
xdev = interface_to_usbdev (intf);
- if (netif_msg_probe (dev))
- netdev_info(dev->net, "unregister '%s' usb-%s-%s, %s\n",
- intf->dev.driver->name,
- xdev->bus->bus_name, xdev->devpath,
- dev->driver_info->description);
+ netif_info(dev, probe, dev->net, "unregister '%s' usb-%s-%s, %s\n",
+ intf->dev.driver->name,
+ xdev->bus->bus_name, xdev->devpath,
+ dev->driver_info->description);
net = dev->net;
unregister_netdev (net);
- /* we don't hold rtnl here ... */
- flush_scheduled_work ();
+ cancel_work_sync(&dev->kevent);
if (dev->driver_info->unbind)
dev->driver_info->unbind (dev, intf);
+ usb_kill_urb(dev->interrupt);
+ usb_free_urb(dev->interrupt);
+
free_netdev(net);
usb_put_dev (xdev);
}
struct usb_device *xdev;
int status;
const char *name;
+ struct usb_driver *driver = to_usb_driver(udev->dev.driver);
+
+ /* usbnet already took usb runtime pm, so have to enable the feature
+ * for usb interface, otherwise usb_autopm_get_interface may return
+ * failure if USB_SUSPEND(RUNTIME_PM) is enabled.
+ */
+ if (!driver->supports_autosuspend) {
+ driver->supports_autosuspend = 1;
+ pm_runtime_enable(&udev->dev);
+ }
name = udev->dev.driver->name;
info = (struct driver_info *) prod->driver_info;
goto out;
}
+ /* netdev_printk() needs this so do it as early as possible */
+ SET_NETDEV_DEV(net, &udev->dev);
+
dev = netdev_priv(net);
dev->udev = xdev;
dev->intf = udev;
// else "eth%d" when there's reasonable doubt. userspace
// can rename the link if it knows better.
if ((dev->driver_info->flags & FLAG_ETHER) != 0 &&
- (net->dev_addr [0] & 0x02) == 0)
+ ((dev->driver_info->flags & FLAG_POINTTOPOINT) == 0 ||
+ (net->dev_addr [0] & 0x02) == 0))
strcpy (net->name, "eth%d");
/* WLAN devices should always be named "wlan%d" */
if ((dev->driver_info->flags & FLAG_WLAN) != 0)
dev->rx_urb_size = dev->hard_mtu;
dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
- SET_NETDEV_DEV(net, &udev->dev);
-
if ((dev->driver_info->flags & FLAG_WLAN) != 0)
SET_NETDEV_DEVTYPE(net, &wlan_type);
if ((dev->driver_info->flags & FLAG_WWAN) != 0)
status = register_netdev (net);
if (status)
goto out3;
- if (netif_msg_probe (dev))
- netdev_info(dev->net, "register '%s' at usb-%s-%s, %s, %pM\n",
- udev->dev.driver->name,
- xdev->bus->bus_name, xdev->devpath,
- dev->driver_info->description,
- net->dev_addr);
+ netif_info(dev, probe, dev->net,
+ "register '%s' at usb-%s-%s, %s, %pM\n",
+ udev->dev.driver->name,
+ xdev->bus->bus_name, xdev->devpath,
+ dev->driver_info->description,
+ net->dev_addr);
// ok, it's ready to go.
usb_set_intfdata (udev, dev);
if (!dev->suspend_count++) {
spin_lock_irq(&dev->txq.lock);
/* don't autosuspend while transmitting */
- if (dev->txq.qlen && (message.event & PM_EVENT_AUTO)) {
+ if (dev->txq.qlen && PMSG_IS_AUTO(message)) {
spin_unlock_irq(&dev->txq.lock);
return -EBUSY;
} else {
int retval;
if (!--dev->suspend_count) {
+ /* resume interrupt URBs */
+ if (dev->interrupt && test_bit(EVENT_DEV_OPEN, &dev->flags))
+ usb_submit_urb(dev->interrupt, GFP_NOIO);
+
spin_lock_irq(&dev->txq.lock);
while ((res = usb_get_from_anchor(&dev->deferred))) {
- printk(KERN_INFO"%s has delayed data\n", __func__);
skb = (struct sk_buff *)res->context;
retval = usb_submit_urb(res, GFP_ATOMIC);
if (retval < 0) {
smp_mb();
clear_bit(EVENT_DEV_ASLEEP, &dev->flags);
spin_unlock_irq(&dev->txq.lock);
- if (!(dev->txq.qlen >= TX_QLEN(dev)))
- netif_start_queue(dev->net);
- tasklet_schedule (&dev->bh);
+
+ if (test_bit(EVENT_DEV_OPEN, &dev->flags)) {
+ if (!(dev->txq.qlen >= TX_QLEN(dev)))
+ netif_start_queue(dev->net);
+ tasklet_schedule (&dev->bh);
+ }
}
return 0;
}
static int __init usbnet_init(void)
{
- /* compiler should optimize this out */
- BUILD_BUG_ON (sizeof (((struct sk_buff *)0)->cb)
- < sizeof (struct skb_data));
+ /* Compiler should optimize this out. */
+ BUILD_BUG_ON(
+ FIELD_SIZEOF(struct sk_buff, cb) < sizeof(struct skb_data));
random_ether_addr(node_id);
return 0;
projects / linux-flexiantxendom0-3.2.10.git / blobdiff