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df63771e7e23cace3ca87f852f93ecd3fee5a855
lan78xx_link_reset explicitly clears the MAC's view of the PHY's IRQ status. In doing so it potentially leaves the PHY with a pending interrupt that will never be acknowledged, at which point no further interrupts will be generated. Avoid the problem by acknowledging any pending PHY interrupt after clearing the MAC's status bit. See: https://github.com/raspberrypi/linux/issues/2937 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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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 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.
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