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| author | Jerry Hoemann <jerry.hoemann@hpe.com> | 2016-04-11 15:02:26 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-04-11 15:02:26 -0700 |
| commit | c7e16e5257ec46530e3e874af38191746c137c83 (patch) | |
| tree | 63f2cfd89ef5d4f6c4f5008854cbd0849f235870 /include/acpi | |
| parent | bf16200689118d19de1b8d2a3c314fc21f5dc7bb (diff) | |
| download | linux-c7e16e5257ec46530e3e874af38191746c137c83.tar.bz2 | |
acpi: widen acpi_evaluate_dsm() revision and function-index arguments
The ACPI specification states that arguments "Revision ID" and "Function
Index" to a _DSM are type "Integer." Type Integers are 64 bit
quantities.
The function evaluate_dsm specifies these types as simple "int" which
are 32 bits. Widen type passed to acpi_evaluate_dsm and its callers and
derived callers to pass correct type.
acpi_check_dsm and acpi_evaluate_dsm_typed had similar issue and were
corrected as well.
This is in preparation for libnvdimm implementing a generic _DSM
passthrough facility to have the capacity to pass 64-bit values as the
ACPI specification allows.
[djbw: clarify the changelog, add rationale]
Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/acpi_bus.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 14362a84c78e..f092cc6eb1fb 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -61,12 +61,12 @@ bool acpi_ata_match(acpi_handle handle); bool acpi_bay_match(acpi_handle handle); bool acpi_dock_match(acpi_handle handle); -bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); +bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs); union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, - int rev, int func, union acpi_object *argv4); + u64 rev, u64 func, union acpi_object *argv4); static inline union acpi_object * -acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, +acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, u64 rev, u64 func, union acpi_object *argv4, acpi_object_type type) { union acpi_object *obj; |