On Wednesday, January 06, 2016 04:03:38 PM Jerry Hoemann wrote:
> The ACPI spec speicifies 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. Correct 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.
>
> Signed-off-by: Jerry Hoemann <jerry.hoemann@xxxxxxx>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> ---
> drivers/acpi/utils.c | 4 ++--
> include/acpi/acpi_bus.h | 6 +++---
> 2 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
> index 475c907..049cba4 100644
> --- a/drivers/acpi/utils.c
> +++ b/drivers/acpi/utils.c
> @@ -628,7 +628,7 @@ acpi_status acpi_evaluate_lck(acpi_handle handle, int lock)
> * some old BIOSes do expect a buffer or an integer etc.
> */
> union acpi_object *
> -acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, int rev, int func,
> +acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func,
> union acpi_object *argv4)
> {
> acpi_status ret;
> @@ -677,7 +677,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm);
> * functions. Currently only support 64 functions at maximum, should be
> * enough for now.
> */
> -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)
> {
> int i;
> u64 mask = 0;
> diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
> index ad0a5ff..8e6abcf 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;
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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