Commit bca0beb9 authored by Marek Vasut's avatar Marek Vasut Committed by David S. Miller

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: default avatarMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bc466e67
...@@ -314,11 +314,11 @@ static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb) ...@@ -314,11 +314,11 @@ static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
skb_pull(skb, 4); skb_pull(skb, 4);
while (skb->len > 0) { 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"); netdev_err(dev->net, "asix_rx_fixup() Bad Header Length\n");
/* get the packet length */ /* get the packet length */
size = (u16) (header & 0x0000ffff); size = (u16) (header & 0x000007ff);
if ((skb->len) - ((size + 1) & 0xfffe) == 0) { if ((skb->len) - ((size + 1) & 0xfffe) == 0) {
u8 alignment = (unsigned long)skb->data & 0x3; u8 alignment = (unsigned long)skb->data & 0x3;
......
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