Wrap hw variable declaration in DCA flags to prevent unused variable
warning during compilation.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
 {
        struct net_device *netdev = pci_get_drvdata(pdev);
        struct igb_adapter *adapter = netdev_priv(netdev);
+#ifdef CONFIG_DCA
        struct e1000_hw *hw = &adapter->hw;
+#endif
 
        /* flush_scheduled work may reschedule our watchdog task, so
         * explicitly disable watchdog tasks from being rescheduled  */