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Hans de Goede 5971b0c159 ACPI / scan: Initialize status to ACPI_STA_DEFAULT Since commit `63347db0af` "ACPI / scan: Use acpi_bus_get_status() to initialize ACPI_TYPE_DEVICE devs" the status field of normal acpi_devices gets set to 0 by acpi_bus_type_and_status() and filled with its actual value later when acpi_add_single_object() calls acpi_bus_get_status(). This means that any acpi_match_device_ids() calls in between will always fail with -ENOENT. We already have a workaround for this, which temporary forces status to ACPI_STA_DEFAULT in drivers/acpi/x86/utils.c: acpi_device_always_present() and the next commit in this series adds another acpi_match_device_ids() call between status being initialized as 0 and the acpi_bus_get_status() call. Rather then adding another workaround, this commit makes acpi_bus_type_and_status() initialize status to ACPI_STA_DEFAULT, this is safe to do as the only code looking at status between the initialization and the acpi_bus_get_status() call is those acpi_match_device_ids() calls. Note this does mean that we need to (re)set status to 0 in case the acpi_bus_get_status() call fails. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2018-08-09 11:04:26 +02:00
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arch	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-08-05 09:39:30 -07:00
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drivers	ACPI / scan: Initialize status to ACPI_STA_DEFAULT	2018-08-09 11:04:26 +02:00
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kernel	Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-08-05 09:25:29 -07:00
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Makefile	Linux 4.18-rc8	2018-08-05 12:37:41 -07:00
README	…

README

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.
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.