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cx82310_eth: allow empty URBs 

Empty received URBs are currently counted as errors but the device sends them
sometimes as part of regular traffic - so remove this check.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ondrej Zary 2010-09-11 05:40:16 +00:00 committed by David S. Miller
parent 7dbfdc2390
commit 441993da47
1 changed files with 3 additions and 9 deletions
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12
drivers/net/usb/cx82310_eth.c
View File

@ -150,11 +150,11 @@ static int cx82310_bind(struct usbnet *dev, struct usb_interface *intf)
/* /*
* this must not include ethernet header as the device can send partial * this must not include ethernet header as the device can send partial
* packets with no header (URB is at least 2 bytes long, so 2 is OK) * packets with no header (and sometimes even empty URBs)
*/ */
dev->net->hard_header_len = 2; dev->net->hard_header_len = 0;
/* we can send at most 1514 bytes of data (+ 2-byte header) per URB */ /* we can send at most 1514 bytes of data (+ 2-byte header) per URB */
dev->hard_mtu = CX82310_MTU + dev->net->hard_header_len; dev->hard_mtu = CX82310_MTU + 2;
/* we can receive URBs up to 4KB from the device */ /* we can receive URBs up to 4KB from the device */
dev->rx_urb_size = 4096; dev->rx_urb_size = 4096;
@ -228,12 +228,6 @@ static int cx82310_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
return 1; return 1;
} }
if (skb->len < 2) {
dev_err(&dev->udev->dev, "RX frame too short: %d B\n",
skb->len);
return 0;
}
/* a skb can contain multiple packets */ /* a skb can contain multiple packets */
while (skb->len > 1) { while (skb->len > 1) {
/* first two bytes are packet length */ /* first two bytes are packet length */