From 23de559b8d3537f972f325e7e015c18aa2e4d987 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Wed, 27 Jun 2007 08:14:50 +0200 Subject: [PATCH] dm9601: HW header size shouldn't be included in packet length The dm9601 driver was including the 2 byte hardware header in the packet length, causing the HW to send 2 extra bytes of garbage on tx. Signed-off-by: Peter Korsgaard Signed-off-by: Jeff Garzik --- drivers/net/usb/dm9601.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c index a676386014..ac200b0f6a 100644 --- a/drivers/net/usb/dm9601.c +++ b/drivers/net/usb/dm9601.c @@ -489,6 +489,8 @@ static struct sk_buff *dm9601_tx_fixup(struct usbnet *dev, struct sk_buff *skb, b3..n: packet data */ + len = skb->len; + if (skb_headroom(skb) < DM_TX_OVERHEAD) { struct sk_buff *skb2; @@ -501,10 +503,9 @@ static struct sk_buff *dm9601_tx_fixup(struct usbnet *dev, struct sk_buff *skb, __skb_push(skb, DM_TX_OVERHEAD); - len = skb->len; /* usbnet adds padding if length is a multiple of packet size if so, adjust length value in header */ - if ((len % dev->maxpacket) == 0) + if ((skb->len % dev->maxpacket) == 0) len++; skb->data[0] = len; -- 2.39.5