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25391e82ff
There are a few issues with how SFP PHYs are attached: a) The phylink_sfp_connect_phy() and phylink_sfp_config_phy() code validates the configuration three times: 1. To discover the support/advertising masks that the PHY/PCS/MAC can support in order to select an interface. 2. To validate the selected interface. 3. When the PHY is brought up after being attached, another validation is done. This is needlessly complex. b) The configuration is set prior to the PHY being attached, which means we don't have the PHY available in phylink_major_config() for phylink_pcs_neg_mode() to make decisions upon. We have already added an extra step to validate the selected interface, so we can now move the attachment and bringup of the PHY earlier, inside phylink_sfp_config_phy(). This results in the validation at step 2 above becoming entirely unnecessary, so remove that too. Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://patch.msgid.link/E1t3bcb-000c8H-3e@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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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 reStructuredText 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.