diff options
| author | Wei Shuai <cpuwolf@gmail.com> | 2013-01-21 06:00:31 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-01-21 14:24:37 -0500 |
| commit | 6509141f9c2ba74df6cc72ec35cd1865276ae3a4 (patch) | |
| tree | 996dd8ab7310de1d9668aec3761cf72ab92796c4 | |
| parent | f91f33452be939b38c3b16ba1fab35c27221e7ec (diff) | |
usbnet: add new flag FLAG_NOARP for usb net devices
We do have some USB net devices, which cannot do ARP.
so we can introduce a new flag FLAG_NOARP, then client drivers
can easily handle this kind of devices
Signed-off-by: Wei Shuai <cpuwolf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/usb/usbnet.c | 4 | ||||
| -rw-r--r-- | include/linux/usb/usbnet.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 3d4bf01641b..f34b2ebee81 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1448,6 +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; diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index bd45eb7bedc..5de7a220e98 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -100,6 +100,7 @@ struct driver_info { #define FLAG_LINK_INTR 0x0800 /* updates link (carrier) status */ #define FLAG_POINTTOPOINT 0x1000 /* possibly use "usb%d" names */ +#define FLAG_NOARP 0x2000 /* device can't do ARP */ /* * Indicates to usbnet, that USB driver accumulates multiple IP packets. |