netdev - Under what conditions is phy_device "adjust

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Message-ID: <20180816132658.Horde.v9igInCJzJMqJVzetKhC8Jh@crashcourse.ca>
Date:   Thu, 16 Aug 2018 13:26:58 -0400
From:   rpjday@...shcourse.ca
To:     netdev@...r.kernel.org
Subject: Under what conditions is phy_device "adjust_link()" called?

I can see from the documentation that the callback adjust_link() is invoked
"for the enet controller to respond to changes in the link state." Is there
a specific list of the events that would generate such a change? Are we
talking initially opening the device, ifup/ifdown, physically unplugging
from the port, some or all of the above?

Not a network expert (yet), so I'm still digging through the code. Thanks.

rday