[PATCH v2 net-next 2/5] net: phy: Use threaded IRQ, to allow IRQ from sleeping devices

[Andrew Lunn <andrew@lunn.ch>]

The interrupt lines from PHYs maybe connected to I2C bus expanders, or
from switches on MDIO busses. Such interrupts are sourced from devices
which sleep, so use threaded interrupts. Threaded interrupts require
that the interrupt requester also uses the threaded API. Change the
phylib to use the threaded API, which is backwards compatible with
none-threaded IRQs.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
v2: Add back IRQF_SHARED
---
 drivers/net/phy/phy.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index f424b867f73e..25f2b296aaba 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -739,10 +739,10 @@ static int phy_disable_interrupts(struct phy_device *phydev)
 int phy_start_interrupts(struct phy_device *phydev)
 {
 	atomic_set(&phydev->irq_disable, 0);
-	if (request_irq(phydev->irq, phy_interrupt,
-				IRQF_SHARED,
-				"phy_interrupt",
-				phydev) < 0) {
+	if (request_threaded_irq(phydev->irq, NULL, phy_interrupt,
+				 IRQF_ONESHOT | IRQF_SHARED,
+				 "phy_interrupt",
+				 phydev) < 0) {
 		pr_warn("%s: Can't get IRQ %d (PHY)\n",
 			phydev->mdio.bus->name, phydev->irq);
 		phydev->irq = PHY_POLL;
-- 
2.9.3