vxge: make function table const

All tables of function pointers should be const.
The pre-existing code has lots of needless indirection...

Inspired by similar change in PAX.
Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-traffic.c b/drivers/net/ethernet/neterion/vxge/vxge-traffic.c
index ad64ce0..5954fa2 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-traffic.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-traffic.c
@@ -532,8 +532,8 @@
 	}
 
 	/* notify driver */
-	if (hldev->uld_callbacks.crit_err)
-		hldev->uld_callbacks.crit_err(
+	if (hldev->uld_callbacks->crit_err)
+		hldev->uld_callbacks->crit_err(
 			(struct __vxge_hw_device *)hldev,
 			type, vp_id);
 out:
@@ -560,8 +560,8 @@
 	hldev->link_state = VXGE_HW_LINK_DOWN;
 
 	/* notify driver */
-	if (hldev->uld_callbacks.link_down)
-		hldev->uld_callbacks.link_down(hldev);
+	if (hldev->uld_callbacks->link_down)
+		hldev->uld_callbacks->link_down(hldev);
 exit:
 	return VXGE_HW_OK;
 }
@@ -585,8 +585,8 @@
 	hldev->link_state = VXGE_HW_LINK_UP;
 
 	/* notify driver */
-	if (hldev->uld_callbacks.link_up)
-		hldev->uld_callbacks.link_up(hldev);
+	if (hldev->uld_callbacks->link_up)
+		hldev->uld_callbacks->link_up(hldev);
 exit:
 	return VXGE_HW_OK;
 }