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The PM_EVENT_FREEZE and PM_EVENT_QUIESCE messages should cause the device to stop generating interrupts. USB core was previously allowing devices that were already runtime suspended to keep remote wakeup enabled if they had gone down that way. This violates the contract with pm, and can potentially cause MSI interrupts to be lost. Change that so that if a device is runtime suspended with remote wakeups enabled, it will be resumed to ensure remote wakeup is always disabled across a freeze. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Evan Green <evgreen@chromium.org> Link: https://lore.kernel.org/r/20220421103751.v3.1.I2c636c4decc358f5e6c27b810748904cc69beada@changeid Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.