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5eee3bb710
So far PHY drivers have to check whether a downshift occurred to be able to notify the user. To make life of drivers authors a little bit easier move the downshift notification to phylib. phy_check_downshift() compares the highest mutually advertised speed with the actual value of phydev->speed (typically read by the PHY driver from a vendor-specific register) to detect a downshift. v2: - Add downshift hint to phy_print_status Signed-off-by: Heiner Kallweit <hkallweit1@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.