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ACPICA: Disassembler: Do not unconditionally remove temporary names

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ACPICA commit c46f496df41e53a368f877f88b70bdfc9bd6fdbe

Change the Switch disassembly code to check if the conversion can be
done before removing temporary (_T_x) names. Prevents invalid
disassembly of AML created by older compilers (circa 2005).

Link: https://github.com/acpica/acpica/commit/c46f496d
Link: https://bugs.acpica.org/show_bug.cgi?id=1358
Link: https://bugs.acpica.org/show_bug.cgi?id=1360
Reported-by: racerrehabman@gmail.com
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
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:
David E. Box 2017-04-26 16:18:55 +08:00 committed by Rafael J. Wysocki
parent bb1e23e66e
commit bee900db6d
1 changed files with 4 additions and 3 deletions
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7
drivers/acpi/acpica/aclocal.h
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@ -784,9 +784,10 @@ union acpi_parse_value {
#define ACPI_DASM_LNOT_SUFFIX 0x09 /* End of a Lnot_equal (etc.) pair of opcodes */
#define ACPI_DASM_HID_STRING 0x0A /* String is a _HID or _CID */
#define ACPI_DASM_IGNORE_SINGLE 0x0B /* Ignore the opcode but not it's children */
#define ACPI_DASM_SWITCH_PREDICATE 0x0C /* Object is a predicate for a Switch or Case block */
#define ACPI_DASM_CASE 0x0D /* If/Else is a Case in a Switch/Case block */
#define ACPI_DASM_DEFAULT 0x0E /* Else is a Default in a Switch/Case block */
#define ACPI_DASM_SWITCH 0x0C /* While is a Switch */
#define ACPI_DASM_SWITCH_PREDICATE 0x0D /* Object is a predicate for a Switch or Case block */
#define ACPI_DASM_CASE 0x0E /* If/Else is a Case in a Switch/Case block */
#define ACPI_DASM_DEFAULT 0x0F /* Else is a Default in a Switch/Case block */
/*
* Generic operation (for example: If, While, Store)