[PATCH net-next v2 3/4] net: phy: start interrupts in phy_start

[Heiner Kallweit]

Interrupts don't have to be enabled before calling phy_start().
Therefore let's enable them in phy_start(). In a subsequent step
we'll remove enabling interrupts from phy_connect_direct().

Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
---
 drivers/net/phy/phy.c | 34 ++++++++++++++--------------------
 1 file changed, 14 insertions(+), 20 deletions(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index fd928979b..30ba650bb 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -857,7 +857,7 @@ EXPORT_SYMBOL(phy_stop);
  */
 void phy_start(struct phy_device *phydev)
 {
-       int err = 0;
+       int err;
 
        mutex_lock(&phydev->lock);
 
@@ -867,28 +867,22 @@ void phy_start(struct phy_device *phydev)
                goto out;
        }
 
-       switch (phydev->state) {
-       case PHY_READY:
-               phydev->state = PHY_UP;
-               phy_start_machine(phydev);
-               break;
-       case PHY_HALTED:
-               /* if phy was suspended, bring the physical link up again */
-               __phy_resume(phydev);
+       /* if phy was suspended, bring the physical link up again */
+       __phy_resume(phydev);
 
-               /* make sure interrupts are re-enabled for the PHY */
-               if (phy_interrupt_is_valid(phydev)) {
-                       err = phy_enable_interrupts(phydev);
-                       if (err < 0)
-                               break;
-               }
+       /* make sure interrupts are enabled for the PHY */
+       if (phy_interrupt_is_valid(phydev)) {
+               err = phy_enable_interrupts(phydev);
+               if (err < 0)
+                       goto out;
+       }
 
+       if (phydev->state == PHY_READY)
+               phydev->state = PHY_UP;
+       else
                phydev->state = PHY_RESUMING;
-               phy_start_machine(phydev);
-               break;
-       default:
-               break;
-       }
+
+       phy_start_machine(phydev);
 out:
        mutex_unlock(&phydev->lock);
 }
-- 
2.20.1