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It has been pointed out that PHYLINK can call mac_config only to update the phy_interface_type and without knowing what the AN results are. Experimentally, when this was observed to happen, state->link was also unset, and therefore was used as a proxy to ignore this call. However it is also suggested that state->link is undefined for this callback and should not be relied upon. So let the previously-dead codepath for SPEED_UNKNOWN be called, and update the comment to make sure the MAC's behavior is sane. 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.