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authorJerry Hoemann <jerry.hoemann@hpe.com>2016-04-12 01:02:26 +0300
committerDan Williams <dan.j.williams@intel.com>2016-04-12 01:02:26 +0300
commitc7e16e5257ec46530e3e874af38191746c137c83 (patch)
tree63f2cfd89ef5d4f6c4f5008854cbd0849f235870 /include/acpi
parentbf16200689118d19de1b8d2a3c314fc21f5dc7bb (diff)
downloadlinux-c7e16e5257ec46530e3e874af38191746c137c83.tar.xz
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.h6
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;