Files
kernel_arpi/include/linux
Chen Yu e10cfdc33a ACPI / osi: Fix default _OSI(Darwin) support
The following commit always reports positive value when Apple hardware
queries _OSI("Darwin"):

 Commit: 7bc5a2bad0
 Subject: ACPI: Support _OSI("Darwin") correctly

However since this implementation places the judgement in runtime, it
breaks acpi_osi=!Darwin and cannot return unsupported for _OSI("WinXXX")
invoked before invoking _OSI("Darwin").

This patch fixes the issues by reverting the wrong support and implementing
the default behavior of _OSI("Darwin")/_OSI("WinXXX") on Apple hardware via
DMI matching.

Fixes: 7bc5a2bad0 (ACPI: Support _OSI("Darwin") correctly)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=92111
Reported-and-tested-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-05-05 00:13:52 +02:00
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