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[ Upstream commit11f8e7c122] There is often not a MAC address available in an EEPROM accessible by Linux with Marvell devices. Instead the bootload has the MAC address and directly programs it into the hardware. So don't consider an error from of_get_mac_address() has fatal. However, the check was added for the case where there is a MAC address in an the EEPROM, but the EEPROM has not probed yet, and -EPROBE_DEFER is returned. In that case the error should be returned. So make the check specific to this error code. Cc: Mauri Sandberg <maukka@ext.kapsi.fi> Reported-by: Thomas Walther <walther-it@gmx.de> Fixes:42404d8f1c("net: mv643xx_eth: process retval from of_get_mac_address") Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20220405000404.3374734-1-andrew@lunn.ch Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@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.