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ACPI: sysfs: Make ACPI GPE mask kernel parameter cover all GPEs

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The acpi_mask_gpe= kernel parameter documentation states that the range
of mask is 128 GPEs (0x00 to 0x7F).  The acpi_masked_gpes mask is a u64 so
only 64 GPEs (0x00 to 0x3F) can really be masked.

Use a bitmap of size 0xFF instead of a u64 for the GPE mask so 256
GPEs can be masked.

Fixes: 9c4aa1eecb (ACPI / sysfs: Provide quirk mechanism to prevent GPE flooding)
Signed-off-by: Prarit Bharava <prarit@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Prarit Bhargava 2017-11-30 15:05:59 -05:00 • committed by Rafael J. Wysocki
parent 50c4c4e268
commit 0f27cff859
2 changed files with 8 additions and 19 deletions
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1
Documentation/admin-guide/kernel-parameters.txt
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@ -114,7 +114,6 @@
This facility can be used to prevent such uncontrolled
GPE floodings.
Format: <int>
Support masking of GPEs numbered from 0x00 to 0x7f.
acpi_no_auto_serialize [HW,ACPI]
Disable auto-serialization of AML methods