Commit fa7b28c1 authored Dec 16, 2018 by Heiner Kallweit Committed by David S. Miller Dec 18, 2018

net: phy: print stack trace in phy_error



So far phy_error() silently stops the PHY state machine. If the network
driver doesn't inform about a  MDIO error then the user may wonder why
his network is down. Let's print the stack trace to facilitate search
for the root cause of the error.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 2b3e88ea

drivers/net/phy/phy.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -730,6 +730,8 @@ void phy_stop_machine(struct phy_device *phydev)
		*/
		static void phy_error(struct phy_device *phydev)
		{
		WARN_ON(1);

		mutex_lock(&phydev->lock);
		phydev->state = PHY_HALTED;
		mutex_unlock(&phydev->lock);

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