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acpi: widen acpi_evaluate_dsm() revision and function-index arguments

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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 <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
This commit is contained in:
Jerry Hoemann 2016-04-11 15:02:26 -07:00 • committed by Dan Williams
commit c7e16e5257
2 changed files with 5 additions and 5 deletions
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6
include/acpi/acpi_bus.h
View file

@ -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;