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net: phy: Correctly process PHY_HALTED in phy_stop_machine()
Florian Fainelli authored
BugLink: http://bugs.launchpad.net/bugs/1711526

[ Upstream commit 7ad813f2

 ]

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: default avatarMarc Gonzalez <marc_gonzalez@sigmadesigns.com>
Fixes: a390d1f3

 ("phylib: convert state_queue work to delayed_work")
Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarMarc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarStefan Bader <stefan.bader@canonical.com>
Signed-off-by: default avatarThadeu Lima de Souza Cascardo <cascardo@canonical.com>
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