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When commit68bdb67732("ACPI: add support for ACPI reconfiguration notifiers") introduced reconfiguration notifiers, it missed the point that the ACPI table, which might be loaded and then unloaded via ConfigFS, could contain devices that were not enumerated by their parents. In such cases, the stale platform device is dangling in the system while the rest of the devices from the same table are already gone. Introduce acpi_platform_device_remove_notify() notifier that, in similar way to I²C or SPI buses, unregisters the platform devices on table removal event. Fixes:68bdb67732("ACPI: add support for ACPI reconfiguration notifiers") Depends-on:00500147cb("drivers: Introduce device lookup variants by ACPI_COMPANION device") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> [ rjw: Changelog & function rename ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.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.