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20d8bb0d17
This should improve the error message when the PHY validate in the MAC driver failed. I ran into this problem multiple times that I put wrong interface values into the device tree and was searching why it is failing with -22 (-EINVAL). This should make it easier to spot the problem. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> 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.