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ACPICA: Interpreter: Add warning if 64-bit constant appears in 32-bit table.

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Some ASL compilers allow 64-bit constants within a 32-bit table
(DSDT version == 1). When encountered, emit a warning that the
constant will be truncated to 32 bits. This is potentially a
serious problem in the ACPI table(s).

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bob Moore
2012-12-31 00:07:18 +00:00
committed by Rafael J. Wysocki
parent 3e5621a750
commit ef42e53f27
6 changed files with 28 additions and 14 deletions
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2
drivers/acpi/acpica/exconvrt.c
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@@ -176,7 +176,7 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
/* Save the Result */
acpi_ex_truncate_for32bit_table(return_desc);
(void)acpi_ex_truncate_for32bit_table(return_desc);
*result_desc = return_desc;
return_ACPI_STATUS(AE_OK);
}