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681e7187ae
It should be perfectly fine to use ACPI if the "fixed" power or sleep buttons cannot be initialized. Moreover, running acpi_bus_scan() successfully on ACPI_ROOT_OBJECT generally causes many devices to be enumerated and probed, possibly including the entire PCI bus, so unregistering acpi_root if the registration of the "fixed" buttons fails is rather unhelpful. For this reason, do not fail acpi_scan_init() when acpi_bus_scan_fixed() fails and turn the latter into a void function. While at it, drop the outdated and misleading comment from acpi_bus_scan_fixed(). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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.