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2d3db26d78
Currently, if device is in link down status and user uses 'ethtool -s' command to set speed but not specify duplex mode, the duplex mode passed from ethtool to driver is unknown value(255), and the fibre port will identify this value as half duplex mode and print "only copper port supports half duplex!". This message is confusing. So for fibre port, only the setting duplex is half, prints error and returns. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.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.