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net: phy: Correctly process PHY_HALTED in phy_stop_machine() 

Marc reported that he was not getting the PHY library adjust_link()
callback function to run when calling phy_stop() + phy_disconnect()
which does not indeed happen because we set the state machine to
PHY_HALTED but we don't get to run it to process this state past that
point.

Fix this with a synchronous call to phy_state_machine() in order to have
the state machine actually act on PHY_HALTED, set the PHY device's link
down, turn the network device's carrier off and finally call the
adjust_link() function.

Reported-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Fixes: a390d1f379 ("phylib: convert state_queue work to delayed_work")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Florian Fainelli 2017-07-28 11:58:36 -07:00 committed by David S. Miller
parent 96a734bae0
commit 7ad813f208
1 changed files with 3 additions and 0 deletions
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3
drivers/net/phy/phy.c
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@ -749,6 +749,9 @@ void phy_stop_machine(struct phy_device *phydev)
if (phydev->state > PHY_UP && phydev->state != PHY_HALTED)
phydev->state = PHY_UP;
mutex_unlock(&phydev->lock);
/* Now we can run the state machine synchronously */
phy_state_machine(&phydev->state_queue.work);
}
/**