diff options
Diffstat (limited to 'drivers/net/usb/usbnet.c')
| -rw-r--r-- | drivers/net/usb/usbnet.c | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index c04110ba677f..f34b2ebee815 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -719,7 +719,8 @@ int usbnet_stop (struct net_device *net) dev->flags = 0; del_timer_sync (&dev->delay); tasklet_kill (&dev->bh); - if (info->manage_power) + if (info->manage_power && + !test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags)) info->manage_power(dev, 0); else usb_autopm_put_interface(dev->intf); @@ -794,14 +795,14 @@ int usbnet_open (struct net_device *net) tasklet_schedule (&dev->bh); if (info->manage_power) { retval = info->manage_power(dev, 1); - if (retval < 0) - goto done_manage_power_error; - usb_autopm_put_interface(dev->intf); + if (retval < 0) { + retval = 0; + set_bit(EVENT_NO_RUNTIME_PM, &dev->flags); + } else { + usb_autopm_put_interface(dev->intf); + } } return retval; - -done_manage_power_error: - clear_bit(EVENT_DEV_OPEN, &dev->flags); done: usb_autopm_put_interface(dev->intf); done_nopm: @@ -1447,6 +1448,10 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if ((dev->driver_info->flags & FLAG_WWAN) != 0) strcpy(net->name, "wwan%d"); + /* devices that cannot do ARP */ + if ((dev->driver_info->flags & FLAG_NOARP) != 0) + net->flags |= IFF_NOARP; + /* maybe the remote can't receive an Ethernet MTU */ if (net->mtu > (dev->hard_mtu - net->hard_header_len)) net->mtu = dev->hard_mtu - net->hard_header_len; @@ -1615,6 +1620,16 @@ void usbnet_device_suggests_idle(struct usbnet *dev) } EXPORT_SYMBOL(usbnet_device_suggests_idle); +/* + * For devices that can do without special commands + */ +int usbnet_manage_power(struct usbnet *dev, int on) +{ + dev->intf->needs_remote_wakeup = on; + return 0; +} +EXPORT_SYMBOL(usbnet_manage_power); + /*-------------------------------------------------------------------------*/ static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, void *data, u16 size) |