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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-01-29 13:59:00 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-01-29 13:59:00 +0100 |
| commit | 8b4e2fa4ff72ba2c9f01af8def15d4c4eeeeed64 (patch) | |
| tree | a2ebfb0b6aebb2fe07821fe862a79709be3ebc17 /drivers/acpi/acpica/exutils.c | |
| parent | 64e94e7e0ffb20ee11a596aa04fcdeefb33e000d (diff) | |
| parent | e375325ce55eb841ccda54a4472cf3b0139ea5f2 (diff) | |
Merge branch 'acpi-lpss' into acpi-cleanup
The following commits depend on the 'acpi-lpss' material.
Diffstat (limited to 'drivers/acpi/acpica/exutils.c')
| -rw-r--r-- | drivers/acpi/acpica/exutils.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c index 264d22d8018..e624958f33b 100644 --- a/drivers/acpi/acpica/exutils.c +++ b/drivers/acpi/acpica/exutils.c @@ -202,35 +202,39 @@ void acpi_ex_relinquish_interpreter(void) * * PARAMETERS: obj_desc - Object to be truncated * - * RETURN: none + * RETURN: TRUE if a truncation was performed, FALSE otherwise. * * DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is * 32-bit, as determined by the revision of the DSDT. * ******************************************************************************/ -void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc) +u8 acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc) { ACPI_FUNCTION_ENTRY(); /* * Object must be a valid number and we must be executing - * a control method. NS node could be there for AML_INT_NAMEPATH_OP. + * a control method. Object could be NS node for AML_INT_NAMEPATH_OP. */ if ((!obj_desc) || (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) || (obj_desc->common.type != ACPI_TYPE_INTEGER)) { - return; + return (FALSE); } - if (acpi_gbl_integer_byte_width == 4) { + if ((acpi_gbl_integer_byte_width == 4) && + (obj_desc->integer.value > (u64)ACPI_UINT32_MAX)) { /* - * We are running a method that exists in a 32-bit ACPI table. + * We are executing in a 32-bit ACPI table. * Truncate the value to 32 bits by zeroing out the upper 32-bit field */ - obj_desc->integer.value &= (u64) ACPI_UINT32_MAX; + obj_desc->integer.value &= (u64)ACPI_UINT32_MAX; + return (TRUE); } + + return (FALSE); } /******************************************************************************* @@ -336,7 +340,7 @@ static u32 acpi_ex_digits_needed(u64 value, u32 base) /* u64 is unsigned, so we don't worry about a '-' prefix */ if (value == 0) { - return_UINT32(1); + return_VALUE(1); } current_value = value; @@ -350,7 +354,7 @@ static u32 acpi_ex_digits_needed(u64 value, u32 base) num_digits++; } - return_UINT32(num_digits); + return_VALUE(num_digits); } /******************************************************************************* |