Fix WPBT processing of zero-length argument lists
Signed-off-by: Al Stone <ahs3@redhat.com>
This commit is contained in:
Al Stone
parent
3ccfccfec1
commit
22a7401210
@ -89,6 +89,7 @@ Patch113: facp.patch
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Patch114: armv7-str-fixes.patch
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Patch115: dbtest.patch
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Patch116: ull-32bit.patch
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Patch117: wpbt-unicode.patch
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BuildRequires: make
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BuildRequires: bison patchutils flex gcc
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@ -257,6 +258,7 @@ fi
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* Tue Jul 27 2021 Al Stone <ahs3@redhat.com> - 20210604-3
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- Running 'iasl -T all' would segfault when dumping the PHAT template;
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fixed AcpiDmDumpPhat() by removing unnecessary assignments from patch
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- Borrowed a patch from upstream to fix Unicode usage in WPBTs
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* Wed Jul 21 2021 Fedora Release Engineering <releng@fedoraproject.org> - 20210604-2
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
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196
wpbt-unicode.patch
Normal file
196
wpbt-unicode.patch
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@ -0,0 +1,196 @@
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Index: acpica-unix2-20210604/source/common/dmtable.c
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===================================================================
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--- acpica-unix2-20210604.orig/source/common/dmtable.c
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+++ acpica-unix2-20210604/source/common/dmtable.c
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@@ -979,6 +979,12 @@ AcpiDmDumpTable (
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ByteLength = 128;
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break;
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+ case ACPI_DMT_WPBT_UNICODE:
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+
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+ ByteLength = SubtableLength;
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+ CurrentOffset = sizeof (ACPI_TABLE_WPBT);
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+ break;
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+
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case ACPI_DMT_UNICODE:
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case ACPI_DMT_BUFFER:
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case ACPI_DMT_RAW_BUFFER:
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@@ -1596,6 +1602,7 @@ AcpiDmDumpTable (
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break;
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case ACPI_DMT_UNICODE:
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+ case ACPI_DMT_WPBT_UNICODE:
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if (ByteLength == 0)
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{
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Index: acpica-unix2-20210604/source/common/dmtbdump3.c
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===================================================================
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--- acpica-unix2-20210604.orig/source/common/dmtbdump3.c
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+++ acpica-unix2-20210604/source/common/dmtbdump3.c
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@@ -753,8 +753,11 @@ AcpiDmDumpWpbt (
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Subtable = ACPI_CAST_PTR (ACPI_TABLE_WPBT, Table);
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ArgumentsLength = AcpiUtReadUint16 (&Subtable->ArgumentsLength);
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- /* Dump the arguments buffer */
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+ /* Dump the arguments buffer if present */
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- (void) AcpiDmDumpTable (TableLength, 0, Table, ArgumentsLength,
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- AcpiDmTableInfoWpbt0);
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+ if (ArgumentsLength)
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+ {
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+ (void) AcpiDmDumpTable (Table->Length, 0, Table, ArgumentsLength,
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+ AcpiDmTableInfoWpbt0);
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+ }
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}
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Index: acpica-unix2-20210604/source/common/dmtbinfo3.c
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===================================================================
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--- acpica-unix2-20210604.orig/source/common/dmtbinfo3.c
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+++ acpica-unix2-20210604/source/common/dmtbinfo3.c
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@@ -651,7 +651,7 @@ ACPI_DMTABLE_INFO AcpiDmTableI
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ACPI_DMTABLE_INFO AcpiDmTableInfoWpbt0[] =
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{
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- {ACPI_DMT_UNICODE, sizeof (ACPI_TABLE_WPBT), "Command-line Arguments", 0},
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+ {ACPI_DMT_WPBT_UNICODE, ACPI_WPBT2_OFFSET (UnicodeString), "Command-line Arguments", DT_DESCRIBES_OPTIONAL},
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ACPI_DMT_TERMINATOR
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};
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Index: acpica-unix2-20210604/source/compiler/dttable2.c
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===================================================================
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--- acpica-unix2-20210604.orig/source/compiler/dttable2.c
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+++ acpica-unix2-20210604/source/compiler/dttable2.c
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@@ -2615,13 +2615,11 @@ DtCompileWpbt (
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DT_SUBTABLE *ParentTable;
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ACPI_TABLE_WPBT *Table;
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ACPI_STATUS Status;
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- UINT16 Length;
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/* Compile the main table */
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- Status = DtCompileTable (PFieldList, AcpiDmTableInfoWpbt,
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- &Subtable);
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+ Status = DtCompileTable (PFieldList, AcpiDmTableInfoWpbt, &Subtable);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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@@ -2629,11 +2627,23 @@ DtCompileWpbt (
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ParentTable = DtPeekSubtable ();
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DtInsertSubtable (ParentTable, Subtable);
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+ Table = ACPI_CAST_PTR (ACPI_TABLE_WPBT, ParentTable->Buffer);
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+
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+ /*
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+ * Exit now if there are no arguments specified. This is indicated by:
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+ * The "Command-line Arguments" field has not been specified (if specified,
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+ * it will be the last field in the field list -- after the main table).
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+ * Set the Argument Length in the main table to zero.
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+ */
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+ if (!*PFieldList)
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+ {
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+ Table->ArgumentsLength = 0;
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+ return (AE_OK);
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+ }
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/* Compile the argument list subtable */
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- Status = DtCompileTable (PFieldList, AcpiDmTableInfoWpbt0,
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- &Subtable);
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+ Status = DtCompileTable (PFieldList, AcpiDmTableInfoWpbt0, &Subtable);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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@@ -2641,12 +2651,8 @@ DtCompileWpbt (
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/* Extract the length of the Arguments buffer, insert into main table */
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- AcpiUtWriteUint (&Length, sizeof (UINT16),
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+ AcpiUtWriteUint (&Table->ArgumentsLength, sizeof (UINT16),
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&Subtable->TotalLength, sizeof (UINT32));
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- Table = ACPI_CAST_PTR (ACPI_TABLE_WPBT, ParentTable->Buffer);
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- Table->ArgumentsLength = AcpiUtReadUint16 (&Length);
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-
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- ParentTable = DtPeekSubtable ();
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DtInsertSubtable (ParentTable, Subtable);
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return (AE_OK);
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}
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Index: acpica-unix2-20210604/source/compiler/dtutils.c
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===================================================================
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--- acpica-unix2-20210604.orig/source/compiler/dtutils.c
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+++ acpica-unix2-20210604/source/compiler/dtutils.c
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@@ -344,6 +344,7 @@ DtGetFieldType (
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break;
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case ACPI_DMT_UNICODE:
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+ case ACPI_DMT_WPBT_UNICODE:
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Type = DT_FIELD_TYPE_UNICODE;
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break;
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@@ -626,12 +627,13 @@ DtGetFieldLength (
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break;
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case ACPI_DMT_UNICODE:
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+ case ACPI_DMT_WPBT_UNICODE:
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Value = DtGetFieldValue (Field);
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/* TBD: error if Value is NULL? (as below?) */
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- ByteLength = (strlen (Value) + 1) * sizeof(UINT16);
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+ ByteLength = (strlen (Value) + 1) * sizeof (UINT16);
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break;
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default:
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Index: acpica-unix2-20210604/source/include/acdisasm.h
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===================================================================
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--- acpica-unix2-20210604.orig/source/include/acdisasm.h
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+++ acpica-unix2-20210604/source/include/acdisasm.h
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@@ -175,6 +175,7 @@ typedef enum
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ACPI_DMT_SRAT,
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ACPI_DMT_TPM2,
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ACPI_DMT_VIOT,
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+ ACPI_DMT_WPBT_UNICODE,
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/* Special opcodes */
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Index: acpica-unix2-20210604/source/include/actbinfo.h
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===================================================================
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--- acpica-unix2-20210604.orig/source/include/actbinfo.h
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+++ acpica-unix2-20210604/source/include/actbinfo.h
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@@ -97,6 +97,7 @@
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#define ACPI_WDDT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_WDDT,f)
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#define ACPI_WDRT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_WDRT,f)
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#define ACPI_WPBT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_WPBT,f)
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+#define ACPI_WPBT2_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_WPBT_UNICODE,f)
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#define ACPI_WSMT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_WSMT,f)
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#define ACPI_XENV_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_XENV,f)
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Index: acpica-unix2-20210604/source/include/actbl3.h
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===================================================================
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--- acpica-unix2-20210604.orig/source/include/actbl3.h
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+++ acpica-unix2-20210604/source/include/actbl3.h
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@@ -847,6 +847,12 @@ typedef struct acpi_table_wpbt
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} ACPI_TABLE_WPBT;
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+typedef struct acpi_wpbt_unicode
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+{
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+ UINT16 *UnicodeString;
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+
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+} ACPI_WPBT_UNICODE;
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+
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/*******************************************************************************
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*
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Index: acpica-unix2-20210604/source/tools/acpisrc/astable.c
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===================================================================
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--- acpica-unix2-20210604.orig/source/tools/acpisrc/astable.c
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+++ acpica-unix2-20210604/source/tools/acpisrc/astable.c
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@@ -772,6 +772,7 @@ ACPI_TYPED_IDENTIFIER_TABLE Ac
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{"ACPI_VIOT_VIRTIO_IOMMU_PCI", SRC_TYPE_STRUCT},
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{"ACPI_VIOT_VIRTIO_IOMMU_MMIO", SRC_TYPE_STRUCT},
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{"ACPI_WDAT_ENTRY", SRC_TYPE_STRUCT},
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+ {"ACPI_WPBT_UNICODE", SRC_TYPE_STRUCT},
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/* Data Table compiler */
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