From: Stephen Hemminger Date: Mon, 28 Nov 2005 19:38:50 +0000 (-0800) Subject: [PATCH] skge: handle VLAN checksum correctly on yukon rev 0 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=1096e87174f925bb817a41386ee70573b2a7d6ff;p=openwrt%2Fstaging%2Fblogic.git [PATCH] skge: handle VLAN checksum correctly on yukon rev 0 If using UDP over VLAN, with the skge driver there is a possibility of generating an incorrect checksum. This is a unlikely occurrence because it is only an issue on Yukon revision 0, and that revision doesn't seem to exist on any current hardware (probably early prototype). Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 596c93b12daa..96ffcc1666bc 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -2300,14 +2300,12 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) td->dma_hi = map >> 32; if (skb->ip_summed == CHECKSUM_HW) { - const struct iphdr *ip - = (const struct iphdr *) (skb->data + ETH_HLEN); int offset = skb->h.raw - skb->data; /* This seems backwards, but it is what the sk98lin * does. Looks like hardware is wrong? */ - if (ip->protocol == IPPROTO_UDP + if (skb->h.ipih->protocol == IPPROTO_UDP && hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON) control = BMU_TCP_CHECK; else