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PHYLINK being designed with PHYs in mind that can change MII protocol, for correct operation it is necessary to ensure that the PHY interface mode stays the same (otherwise clear the supported bit mask, as required). Because this is just a hypothetical situation for now, we don't bother to check whether we could actually support the new PHY interface mode. Actually we could modify the xMII table, reset the switch and send an updated static configuration, but adding that would just be dead code. Cc: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.