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ACPICA: Add more methods eligible for NULL package element removal 

This change adds another group of predefined names to the list
of names eligible to have NULL package elements dynamically
removed. This group is the names that return a single
variable-length package containing simple data types such
as integers, buffers, strings. This includes: _ALx,_BCL,_CID,
_DOD,_EDL,_FIX,_PCL,_PLD,_PMD,_PRx,_PSL,_Sx, and _TZD.

http://www.acpica.org/bugzilla/show_bug.cgi?id=914

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore 2011-04-13 13:15:58 +08:00 committed by Len Brown
parent 0f6896f195
commit 945488b9c5
1 changed files with 5 additions and 8 deletions
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13
drivers/acpi/acpica/nsrepair.c
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@ -74,7 +74,6 @@ ACPI_MODULE_NAME("nsrepair")
*
* Additional possible repairs:
*
* Optional/unnecessary NULL package elements removed
* Required package elements that are NULL replaced by Integer/String/Buffer
* Incorrect standalone package wrapped with required outer package
*
@ -623,16 +622,12 @@ acpi_ns_remove_null_elements(struct acpi_predefined_data *data,
ACPI_FUNCTION_NAME(ns_remove_null_elements);
/*
* PTYPE1 packages contain no subpackages.
* PTYPE2 packages contain a variable number of sub-packages. We can
* safely remove all NULL elements from the PTYPE2 packages.
* We can safely remove all NULL elements from these package types:
* PTYPE1_VAR packages contain a variable number of simple data types.
* PTYPE2 packages contain a variable number of sub-packages.
*/
switch (package_type) {
case ACPI_PTYPE1_FIXED:
case ACPI_PTYPE1_VAR:
case ACPI_PTYPE1_OPTION:
return;
case ACPI_PTYPE2:
case ACPI_PTYPE2_COUNT:
case ACPI_PTYPE2_PKG_COUNT:
@ -642,6 +637,8 @@ acpi_ns_remove_null_elements(struct acpi_predefined_data *data,
break;
default:
case ACPI_PTYPE1_FIXED:
case ACPI_PTYPE1_OPTION:
return;
}