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| author | Yunfeng Ye <yeyunfeng@huawei.com> | 2019-11-14 15:16:24 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-09 10:20:02 +0100 |
| commit | 58501792851d3c1ed64a8df98933ebf233b2e2bf (patch) | |
| tree | af29c2281d50493d71e3792f5ecf2028c57a443d /Documentation | |
| parent | 1e102037f87b9ace4b8531bce1b97b7d0f83fcd7 (diff) | |
| download | linux-stable-58501792851d3c1ed64a8df98933ebf233b2e2bf.tar.gz linux-stable-58501792851d3c1ed64a8df98933ebf233b2e2bf.tar.bz2 linux-stable-58501792851d3c1ed64a8df98933ebf233b2e2bf.zip | |
ACPI: sysfs: Change ACPI_MASKABLE_GPE_MAX to 0x100
commit a7583e72a5f22470d3e6fd3b6ba912892242339f upstream.
The commit 0f27cff8597d ("ACPI: sysfs: Make ACPI GPE mask kernel
parameter cover all GPEs") says:
"Use a bitmap of size 0xFF instead of a u64 for the GPE mask so 256
GPEs can be masked"
But the masking of GPE 0xFF it not supported and the check condition
"gpe > ACPI_MASKABLE_GPE_MAX" is not valid because the type of gpe is
u8.
So modify the macro ACPI_MASKABLE_GPE_MAX to 0x100, and drop the "gpe >
ACPI_MASKABLE_GPE_MAX" check. In addition, update the docs "Format" for
acpi_mask_gpe parameter.
Fixes: 0f27cff8597d ("ACPI: sysfs: Make ACPI GPE mask kernel parameter cover all GPEs")
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
[ rjw: Use u16 as gpe data type in acpi_gpe_apply_masked_gpes() ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index f5a551e4332d..5594c8bf1dcd 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -113,7 +113,7 @@ the GPE dispatcher. This facility can be used to prevent such uncontrolled GPE floodings. - Format: <int> + Format: <byte> acpi_no_auto_serialize [HW,ACPI] Disable auto-serialization of AML methods |