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In some cases it is possible for kernel to come with request to change primary MAC address to the address that is already set on the given interface. Add proper check to return fast from the function in these cases. An example of such case is adding an interface to bonding channel in balance-alb mode: modprobe bonding mode=balance-alb miimon=100 max_bonds=1 ip link set bond0 up ifenslave bond0 <eth> Signed-off-by: Piotr Gardocki <piotrx.gardocki@intel.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.