ASIX: Use only 11 bits of header for data size

The AX88772B uses only 11 bits of the header for the actual size. The other bits
are used for something else. This causes dmesg full of messages:

	asix_rx_fixup() Bad Header Length

This patch trims the check to only 11 bits. I believe on older chips, the
remaining 5 top bits are unused.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c
index d5b62a46340128490e147844771881f3160f803d..c5c4b4def7fbfdb1fe1de2a5f13c19968d55dd12 100644 (file)
--- a/drivers/net/usb/asix.c
+++ b/drivers/net/usb/asix.c
@@ -314,11 +314,11 @@ static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
        skb_pull(skb, 4);
 
        while (skb->len > 0) {
-               if ((header & 0xffff) != ((~header >> 16) & 0xffff))
+               if ((header & 0x07ff) != ((~header >> 16) & 0x07ff))
                        netdev_err(dev->net, "asix_rx_fixup() Bad Header Length\n");
 
                /* get the packet length */
-               size = (u16) (header & 0x0000ffff);
+               size = (u16) (header & 0x000007ff);
 
                if ((skb->len) - ((size + 1) & 0xfffe) == 0) {
                        u8 alignment = (unsigned long)skb->data & 0x3;