i40e,igb,ixgbe: remove usless return statements

Remove cases where useless bare return is left at end of function.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index e0e5c6a8..c2587f5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -6836,7 +6836,6 @@
 		return;
 
 	i40e_aq_delete_element(&vsi->back->hw, vsi->seid, NULL);
-	return;
 }
 
 /**
@@ -7576,8 +7575,6 @@
 
 	i40e_aq_delete_element(&pf->hw, veb->seid, NULL);
 	i40e_veb_clear(veb);
-
-	return;
 }
 
 /**
@@ -8058,7 +8055,6 @@
 	}
 
 	pf->queues_left = queues_left;
-	return;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 6f6bd3f..8dbaa77 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -693,7 +693,6 @@
 		f->remove = true;
 		adapter->aq_required |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
 	}
-	return;
 }
 
 /**
@@ -1232,8 +1231,6 @@
 	pci_disable_msix(adapter->pdev);
 	kfree(adapter->msix_entries);
 	adapter->msix_entries = NULL;
-
-	return;
 }
 
 /**
@@ -2158,7 +2155,6 @@
 		return; /* do not reschedule */
 	}
 	schedule_delayed_work(&adapter->init_task, HZ * 3);
-	return;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index bfcda8a..0fbab80 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -2139,7 +2139,6 @@
 		}
 		break;
 	}
-	return;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
index f58170b..7d4e855 100644
--- a/drivers/net/ethernet/intel/igbvf/ethtool.c
+++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
@@ -119,7 +119,6 @@
 static void igbvf_get_pauseparam(struct net_device *netdev,
                                  struct ethtool_pauseparam *pause)
 {
-	return;
 }
 
 static int igbvf_set_pauseparam(struct net_device *netdev,