netxen: annotate register windowing code

Use common variables crb_win, ocm_win for all revisions of chip.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index b7f6070..6695e54 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -606,7 +606,7 @@
 	 * Set the CRB window to invalid. If any register in window 0 is
 	 * accessed it should set the window to 0 and then reset it to 1.
 	 */
-	adapter->curr_window = 255;
+	adapter->ahw.crb_win = -1;
 	adapter->ahw.ocm_win = -1;
 
 	/* remap phys address */
@@ -1437,7 +1437,7 @@
 	if (err)
 		return err;
 
-	adapter->curr_window = 255;
+	adapter->ahw.crb_win = -1;
 	adapter->ahw.ocm_win = -1;
 
 	err = netxen_start_firmware(adapter);