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The wakeup_prepared PCI device flag is used for preventing subsequent changes of PCI device wakeup settings in the same way (e.g. enabling device wakeup twice in a row). However, in some cases PME Enable may be updated by things like PCI configuration space restoration in the meantime and it may need to be set again even though the rest of the settings need not change, so modify __pci_enable_wake() to do that when it is about to return early. Also, it is reasonable to expect that __pci_enable_wake() will always clear PME Status when invoked to disable device wakeup, so make it do so even if it is going to return early then. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.