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In ACPI 6.4 spec, record types "0x0002-0xffff" of FPDT Performance Record Types [1] and record types "0x0003-0xffff" of Runtime Performance Record Types [2] are reserved. Users might be confused with the FW_BUG message, and they think this is the FW issue. Here is the example in a Lenovo box: ACPI: FPDT 0x00000000A820A000 000044 (v01 LENOVO THINKSYS 00000100 01000013) ACPI: Reserving FPDT table memory at [mem 0xa820a000-0xa820a043] ACPI FPDT: [Firmware Bug]: Invalid record 4113 found So, remove the FW_BUG message to avoid confusion since those types are reserved in ACPI 6.4 spec. [1] https://uefi.org/specs/ACPI/6.4/05_ACPI_Software_Programming_Model/ACPI_Software_Programming_Model.html#fpdt-performance-record-types-table [2] https://uefi.org/specs/ACPI/6.4/05_ACPI_Software_Programming_Model/ACPI_Software_Programming_Model.html#runtime-performance-record-types-table Signed-off-by: Adrian Huang <ahuang12@lenovo.com> Acked-by: Zhang Rui <rui.zhang@intel.com> 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.