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author | Lv Zheng <lv.zheng@intel.com> | 2013-07-22 16:08:36 +0800 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-07-23 04:07:04 +0200 |
commit | 741d81280ad2b31fc3d76c49fa5c1fe09f3a6f68 (patch) | |
tree | f268f5301d15f1879007788917aa9aaa7ef04cdc /drivers/acpi/acpica | |
parent | 5dc17986fdc3d2425838cb8d699152c3c30d1208 (diff) | |
download | op-kernel-dev-741d81280ad2b31fc3d76c49fa5c1fe09f3a6f68.zip op-kernel-dev-741d81280ad2b31fc3d76c49fa5c1fe09f3a6f68.tar.gz |
ACPI: Add facility to remove all _OSI strings
This patch changes the "acpi_osi=" boot parameter implementation so
that:
1. "acpi_osi=!" can be used to disable all _OSI OS vendor strings by
default. It is meaningless to specify "acpi_osi=!" multiple
times as it can only affect the default state of the target _OSI
strings.
2. "acpi_osi=!*" can be used to remove all _OSI OS vendor strings
and all _OSI feature group strings. It is useful to specify
"acpi_osi=!*" multiple times through kernel command line to
override the current state of the target _OSI strings.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica')
0 files changed, 0 insertions, 0 deletions