From e6e918d4eb93f43e770fbc2a0881686e350e1a1f Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Wed, 6 Jan 2021 14:03:40 +0100 Subject: net: phy: replace mutex_is_locked with lockdep_assert_held in phylib Switch to lockdep_assert_held(_once), similar to what is being done in other subsystems. One advantage is that there's zero runtime overhead if lockdep support isn't enabled. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Link: https://lore.kernel.org/r/ccc40b9d-8ee0-43a1-5009-2cc95ca79c85@gmail.com Signed-off-by: Jakub Kicinski --- drivers/net/phy/mdio_bus.c | 4 ++-- drivers/net/phy/phy.c | 2 +- drivers/net/phy/phy_device.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/net/phy') diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 2b42e46066b4..040509b81f02 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -740,7 +740,7 @@ int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum) { int retval; - WARN_ON_ONCE(!mutex_is_locked(&bus->mdio_lock)); + lockdep_assert_held_once(&bus->mdio_lock); retval = bus->read(bus, addr, regnum); @@ -766,7 +766,7 @@ int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val) { int err; - WARN_ON_ONCE(!mutex_is_locked(&bus->mdio_lock)); + lockdep_assert_held_once(&bus->mdio_lock); err = bus->write(bus, addr, regnum, val); diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 45f75533c47c..9cb7e4dbf8f4 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -724,7 +724,7 @@ static int phy_check_link_status(struct phy_device *phydev) { int err; - WARN_ON(!mutex_is_locked(&phydev->lock)); + lockdep_assert_held(&phydev->lock); /* Keep previous state if loopback is enabled because some PHYs * report that Link is Down when loopback is enabled. diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 80c2e646c093..8447e56ba572 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -1740,7 +1740,7 @@ int __phy_resume(struct phy_device *phydev) struct phy_driver *phydrv = phydev->drv; int ret; - WARN_ON(!mutex_is_locked(&phydev->lock)); + lockdep_assert_held(&phydev->lock); if (!phydrv || !phydrv->resume) return 0; -- cgit v1.2.3