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If the network interface object is connected to a MAC of TYPE_FIXED, the link status management is handled exclusively by the firmware. This does not mean that the driver cannot access the MAC counters and export them in ethtool. For this to happen, we open the attached dpmac device and keep a pointer to it in priv->mac. Because of this, all the checks in the driver of the following form 'if (priv->mac)' have to be updated to actually check the dpmac attribute and not rely on the presence of a non-NULL value. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.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.