void i40evf_down(struct i40evf_adapter *adapter)
 {
        struct net_device *netdev = adapter->netdev;
+       struct i40evf_vlan_filter *vlf;
        struct i40evf_mac_filter *f;
 
        if (adapter->state <= __I40EVF_DOWN_PENDING)
                f->remove = true;
        }
        /* remove all VLAN filters */
-       list_for_each_entry(f, &adapter->vlan_filter_list, list) {
+       list_for_each_entry(vlf, &adapter->vlan_filter_list, list) {
                f->remove = true;
        }
 
 {
        struct net_device *netdev = pci_get_drvdata(pdev);
        struct i40evf_adapter *adapter = netdev_priv(netdev);
+       struct i40evf_vlan_filter *vlf, *vlftmp;
        struct i40evf_mac_filter *f, *ftmp;
        struct i40e_hw *hw = &adapter->hw;
        int err;
                list_del(&f->list);
                kfree(f);
        }
-       list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
-               list_del(&f->list);
-               kfree(f);
+       list_for_each_entry_safe(vlf, vlftmp, &adapter->vlan_filter_list,
+                                list) {
+               list_del(&vlf->list);
+               kfree(vlf);
        }
 
        spin_unlock_bh(&adapter->mac_vlan_list_lock);