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Russell King says: ==================== phylink/sfp updates This is a series of updates to phylink and sfp: - Remove an unused net device argument from the phylink MII ioctl emulation code. - add support for using interrupts when using a GPIO for link status tracking, rather than polling it at one second intervals. This reduces the need to wakeup the CPU every second. - add support to the MII ioctl API to read and write Clause 45 PHY registers. I don't know how desirable this is for mainline, but I have used this facility extensively to investigate the Marvell 88x3310 PHY. A recent illustration of use for this was debugging the PHY-without-firmware problem recently reported. - add mandatory attach/detach methods for the upstream side of sfp bus code, which will allow us to remove the "netdev" structure from the SFP layers. - remove the "netdev" structure from the SFP upstream registration calls, which simplifies PHY to SFP links. ==================== 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
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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.