From 9fc0e46189feb926b13713422ea2722e273a31b5 Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Mon, 19 Oct 2020 17:30:30 -0400
Subject: [PATCH 40/45] Support S3PT in a big-endian world

---
 source/common/dmtbdump2.c  | 15 +++++++++------
 source/compiler/dttable2.c |  4 +++-
 2 files changed, 12 insertions(+), 7 deletions(-)

Index: acpica-unix2-20210604/source/common/dmtbdump2.c
===================================================================
--- acpica-unix2-20210604.orig/source/common/dmtbdump2.c
+++ acpica-unix2-20210604/source/common/dmtbdump2.c
@@ -2039,6 +2039,8 @@ AcpiDmDumpS3pt (
     ACPI_FPDT_HEADER        *Subtable;
     ACPI_DMTABLE_INFO       *InfoTable;
     ACPI_TABLE_S3PT         *S3ptTable = ACPI_CAST_PTR (ACPI_TABLE_S3PT, Tables);
+    UINT32                  S3ptTableLength = AcpiUtReadUint32 (&S3ptTable->Length);
+    UINT16                  SubtableType;
 
 
     /* Main table */
@@ -2050,19 +2052,20 @@ AcpiDmDumpS3pt (
     }
 
     Subtable = ACPI_ADD_PTR (ACPI_FPDT_HEADER, S3ptTable, Offset);
-    while (Offset < S3ptTable->Length)
+    while (Offset < S3ptTableLength)
     {
         /* Common subtable header */
 
         AcpiOsPrintf ("\n");
-        Status = AcpiDmDumpTable (S3ptTable->Length, Offset, Subtable,
+        Status = AcpiDmDumpTable (S3ptTableLength, Offset, Subtable,
             Subtable->Length, AcpiDmTableInfoS3ptHdr);
         if (ACPI_FAILURE (Status))
         {
             return 0;
         }
 
-        switch (Subtable->Type)
+        SubtableType = AcpiUtReadUint16 (&Subtable->Type);
+        switch (SubtableType)
         {
         case ACPI_S3PT_TYPE_RESUME:
 
@@ -2077,7 +2080,7 @@ AcpiDmDumpS3pt (
         default:
 
             AcpiOsPrintf ("\n**** Unknown S3PT subtable type 0x%X\n",
-                Subtable->Type);
+                SubtableType);
 
             /* Attempt to continue */
 
@@ -2090,7 +2093,7 @@ AcpiDmDumpS3pt (
         }
 
         AcpiOsPrintf ("\n");
-        Status = AcpiDmDumpTable (S3ptTable->Length, Offset, Subtable,
+        Status = AcpiDmDumpTable (S3ptTableLength, Offset, Subtable,
             Subtable->Length, InfoTable);
         if (ACPI_FAILURE (Status))
         {
@@ -2104,7 +2107,7 @@ NextSubtable:
         Subtable = ACPI_ADD_PTR (ACPI_FPDT_HEADER, Subtable, Subtable->Length);
     }
 
-    return (S3ptTable->Length);
+    return (S3ptTableLength);
 }
 
 
Index: acpica-unix2-20210604/source/compiler/dttable2.c
===================================================================
--- acpica-unix2-20210604.orig/source/compiler/dttable2.c
+++ acpica-unix2-20210604/source/compiler/dttable2.c
@@ -1406,6 +1406,7 @@ DtCompileS3pt (
     DT_SUBTABLE             *ParentTable;
     ACPI_DMTABLE_INFO       *InfoTable;
     DT_FIELD                *SubtableStart;
+    UINT16                  S3ptHeaderType;
 
 
     Status = DtCompileTable (PFieldList, AcpiDmTableInfoS3pt,
@@ -1433,7 +1434,8 @@ DtCompileS3pt (
 
         S3ptHeader = ACPI_CAST_PTR (ACPI_FPDT_HEADER, Subtable->Buffer);
 
-        switch (S3ptHeader->Type)
+        S3ptHeaderType = AcpiUtReadUint16 (&S3ptHeader->Type);
+        switch (S3ptHeaderType)
         {
         case ACPI_S3PT_TYPE_RESUME: