net: phy: Encapsulate actions performed during link state changes into function phy_adjust_link

During phy state machine state transitions some set of actions should
occur whenever the link state changes. These actions should be
encapsulated into a single function

This patch adds the phy_adjust_link function, which is called whenever
phydev->adjust_link would have been called before. Actions that should
occur whenever the phy link is adjusted can now be added to the
phy_adjust_link function.

Signed-off-by: Zach Brown <zach.brown@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/phy.c

@@ -908,6 +908,11 @@ void phy_start(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(phy_start);
 
+static void phy_adjust_link(struct phy_device *phydev)
+{
+	phydev->adjust_link(phydev->attached_dev);
+}
+
 /**
  * phy_state_machine - Handle the state machine
  * @work: work_struct that describes the work to be done
@@ -950,7 +955,7 @@ void phy_state_machine(struct work_struct *work)
 		if (!phydev->link) {
 			phydev->state = PHY_NOLINK;
 			netif_carrier_off(phydev->attached_dev);
-			phydev->adjust_link(phydev->attached_dev);
+			phy_adjust_link(phydev);
 			break;
 		}
 
@@ -963,7 +968,7 @@ void phy_state_machine(struct work_struct *work)
 		if (err > 0) {
 			phydev->state = PHY_RUNNING;
 			netif_carrier_on(phydev->attached_dev);
-			phydev->adjust_link(phydev->attached_dev);
+			phy_adjust_link(phydev);
 
 		} else if (0 == phydev->link_timeout--)
 			needs_aneg = true;
@@ -990,7 +995,7 @@ void phy_state_machine(struct work_struct *work)
 			}
 			phydev->state = PHY_RUNNING;
 			netif_carrier_on(phydev->attached_dev);
-			phydev->adjust_link(phydev->attached_dev);
+			phy_adjust_link(phydev);
 		}
 		break;
 	case PHY_FORCING:
@@ -1006,7 +1011,7 @@ void phy_state_machine(struct work_struct *work)
 				needs_aneg = true;
 		}
 
-		phydev->adjust_link(phydev->attached_dev);
+		phy_adjust_link(phydev);
 		break;
 	case PHY_RUNNING:
 		/* Only register a CHANGE if we are polling and link changed
@@ -1035,7 +1040,7 @@ void phy_state_machine(struct work_struct *work)
 			netif_carrier_off(phydev->attached_dev);
 		}
 
-		phydev->adjust_link(phydev->attached_dev);
+		phy_adjust_link(phydev);
 
 		if (phy_interrupt_is_valid(phydev))
 			err = phy_config_interrupt(phydev,
@@ -1045,7 +1050,7 @@ void phy_state_machine(struct work_struct *work)
 		if (phydev->link) {
 			phydev->link = 0;
 			netif_carrier_off(phydev->attached_dev);
-			phydev->adjust_link(phydev->attached_dev);
+			phy_adjust_link(phydev);
 			do_suspend = true;
 		}
 		break;
@@ -1069,7 +1074,7 @@ void phy_state_machine(struct work_struct *work)
 				} else	{
 					phydev->state = PHY_NOLINK;
 				}
-				phydev->adjust_link(phydev->attached_dev);
+				phy_adjust_link(phydev);
 			} else {
 				phydev->state = PHY_AN;
 				phydev->link_timeout = PHY_AN_TIMEOUT;
@@ -1085,7 +1090,7 @@ void phy_state_machine(struct work_struct *work)
 			} else	{
 				phydev->state = PHY_NOLINK;
 			}
-			phydev->adjust_link(phydev->attached_dev);
+			phy_adjust_link(phydev);
 		}
 		break;
 	}