Revert "phy: IRQ cannot be shared"
This reverts:
commit 33c133cc7598 ("phy: IRQ cannot be shared")
On hardware with multiple PHY devices hooked up to the same IRQ line, allow
them to share it.
Sergei Shtylyov says:
"I'm not sure now what was the reason I concluded that the IRQ sharing
was impossible... most probably I thought that the kernel IRQ handling
code exited the loop over the IRQ actions once IRQ_HANDLED was returned
-- which is obviously not so in reality..."
Signed-off-by: Xander Huff <xander.huff@ni.com>
Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index c5dc2c36..c6f6683 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -722,8 +722,10 @@
int phy_start_interrupts(struct phy_device *phydev)
{
atomic_set(&phydev->irq_disable, 0);
- if (request_irq(phydev->irq, phy_interrupt, 0, "phy_interrupt",
- phydev) < 0) {
+ if (request_irq(phydev->irq, phy_interrupt,
+ 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;