[ofw] [PATCH] winverbs/driver: fix check for IP version

[Sean Hefty]

The IP version is in the upper 4 bits of an 8 bit field.  It is set
correctly, but not ready out correctly.  The result is that an IPv4
address reported to user space is listed as an IPv6 address instead.

Signed-off-by: Sean Hefty <sean.hefty at intel.com>
---
diff -up -r -X \mshefty\scm\winof\trunk\docs\dontdiff.txt -I '\$Id:'
trunk\core\winverbs/kernel/wv_ep.c
branches\winverbs\core\winverbs/kernel/wv_ep.c
--- trunk\core\winverbs/kernel/wv_ep.c	2009-08-07 17:14:52.192867100 -0700
+++ branches\winverbs\core\winverbs/kernel/wv_ep.c	2009-08-07
15:38:58.686479000 -0700
@@ -1079,7 +1079,7 @@ static NTSTATUS WvEpIbListenHandler(iba_
 	pId->context = ep;
 
 	hdr = pEvent->data.req.req.p_pdata;
-	if (hdr->IpVersion == 4) {
+	if ((hdr->IpVersion >> 4) == 4) {
 		ep->Attributes.LocalAddress.SockAddr.In.SinFamily = WV_AF_INET;
 		ep->Attributes.LocalAddress.SockAddr.In.SinAddr =
hdr->DstAddress.Ip4.Address;
 		ep->Attributes.PeerAddress.SockAddr.In.SinFamily = WV_AF_INET;