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[ Upstream commit0686bd9d5e] The phy_init_hw() function may reset the PHY to a configuration that does not match manual network settings stored in the phydev structure. If the phy state machine is polled rather than event driven this can create a timing hazard where the phy state machine might alter the settings stored in the phydev structure from the value read from the BMCR. This commit follows invocations of phy_init_hw() by the bcmgenet driver with invocations of the genphy_config_aneg() function to ensure that the BMCR is written to match the settings held in the phydev structure. This prevents the risk of manual settings being accidentally altered. Fixes:1c1008c793("net: bcmgenet: add main driver file") Signed-off-by: Doug Berger <opendmb@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.