diff --git a/drivers/bus/acpi/acpica/dispatcher/dscontrol.c b/drivers/bus/acpi/acpica/dispatcher/dscontrol.c
index b2bec503330..d78f765d7c2 100644
--- a/drivers/bus/acpi/acpica/dispatcher/dscontrol.c
+++ b/drivers/bus/acpi/acpica/dispatcher/dscontrol.c
@@ -127,7 +127,7 @@ AcpiDsExecBeginControlOp (
         ControlState->Control.Opcode =
             Op->Common.AmlOpcode;
         ControlState->Control.LoopTimeout = AcpiOsGetTimer () +
-           (UINT64) (AcpiGbl_MaxLoopIterations * ACPI_100NSEC_PER_SEC);
+           ((UINT64) AcpiGbl_MaxLoopIterations * ACPI_100NSEC_PER_SEC);
 
         /* Push the control state on this walk's control stack */
 
diff --git a/drivers/bus/acpi/acpica/dispatcher/dsfield.c b/drivers/bus/acpi/acpica/dispatcher/dsfield.c
index 43c1fe4fa1c..4c3c7ff22f3 100644
--- a/drivers/bus/acpi/acpica/dispatcher/dsfield.c
+++ b/drivers/bus/acpi/acpica/dispatcher/dsfield.c
@@ -201,7 +201,6 @@ AcpiDsCreateBufferField (
     if (WalkState->DeferredNode)
     {
         Node = WalkState->DeferredNode;
-        Status = AE_OK;
     }
     else
     {
@@ -327,7 +326,6 @@ AcpiDsGetFieldNames (
     ACPI_PARSE_OBJECT       *Child;
 
 #ifdef ACPI_EXEC_APP
-    UINT64                  Value = 0;
     ACPI_OPERAND_OBJECT     *ResultDesc;
     ACPI_OPERAND_OBJECT     *ObjDesc;
     char                    *NamePath;
@@ -469,14 +467,13 @@ AcpiDsGetFieldNames (
                     }
 #ifdef ACPI_EXEC_APP
                     NamePath = AcpiNsGetExternalPathname (Info->FieldNode);
-                    ObjDesc = AcpiUtCreateIntegerObject (Value);
-                    if (ACPI_SUCCESS (AeLookupInitFileEntry (NamePath, &Value)))
+                    if (ACPI_SUCCESS (AeLookupInitFileEntry (NamePath, &ObjDesc)))
                     {
                         AcpiExWriteDataToField (ObjDesc,
                             AcpiNsGetAttachedObject (Info->FieldNode),
                             &ResultDesc);
+                        AcpiUtRemoveReference (ObjDesc);
                     }
-                    AcpiUtRemoveReference (ObjDesc);
                     ACPI_FREE (NamePath);
 #endif
                 }
@@ -705,8 +702,6 @@ AcpiDsInitFieldObjects (
                 }
 
                 /* Name already exists, just ignore this error */
-
-                Status = AE_OK;
             }
 
             Arg->Common.Node = Node;
diff --git a/drivers/bus/acpi/acpica/events/evgpeblk.c b/drivers/bus/acpi/acpica/events/evgpeblk.c
index b523bbf50a9..283b5ffedd2 100644
--- a/drivers/bus/acpi/acpica/events/evgpeblk.c
+++ b/drivers/bus/acpi/acpica/events/evgpeblk.c
@@ -164,6 +164,10 @@ AcpiEvDeleteGpeBlock (
     /* Disable all GPEs in this block */
 
     Status = AcpiHwDisableGpeBlock (GpeBlock->XruptBlock, GpeBlock, NULL);
+    if (ACPI_FAILURE (Status))
+    {
+        return_ACPI_STATUS (Status);
+    }
 
     if (!GpeBlock->Previous && !GpeBlock->Next)
     {
@@ -434,7 +438,7 @@ AcpiEvCreateGpeBlock (
     WalkInfo.GpeDevice = GpeDevice;
     WalkInfo.ExecuteByOwnerId = FALSE;
 
-    Status = AcpiNsWalkNamespace (ACPI_TYPE_METHOD, GpeDevice,
+    (void) AcpiNsWalkNamespace (ACPI_TYPE_METHOD, GpeDevice,
         ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
         AcpiEvMatchGpeMethod, NULL, &WalkInfo, NULL);
 
diff --git a/drivers/bus/acpi/acpica/events/evgpeinit.c b/drivers/bus/acpi/acpica/events/evgpeinit.c
index 9b2d5ce928c..82d3e0c6efe 100644
--- a/drivers/bus/acpi/acpica/events/evgpeinit.c
+++ b/drivers/bus/acpi/acpica/events/evgpeinit.c
@@ -194,8 +194,6 @@ AcpiEvGpeInitialize (
              * GPE0 and GPE1 do not have to be contiguous in the GPE number
              * space. However, GPE0 always starts at GPE number zero.
              */
-            GpeNumberMax = AcpiGbl_FADT.Gpe1Base +
-                ((RegisterCount1 * ACPI_GPE_REGISTER_WIDTH) - 1);
         }
     }
 
@@ -207,7 +205,6 @@ AcpiEvGpeInitialize (
 
         ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
             "There are no GPE blocks defined in the FADT\n"));
-        Status = AE_OK;
         goto Cleanup;
     }
 
diff --git a/drivers/bus/acpi/acpica/events/evmisc.c b/drivers/bus/acpi/acpica/events/evmisc.c
index 37132d41bb6..b9bf22e44ad 100644
--- a/drivers/bus/acpi/acpica/events/evmisc.c
+++ b/drivers/bus/acpi/acpica/events/evmisc.c
@@ -292,11 +292,16 @@ AcpiEvTerminate (
         /* Disable all GPEs in all GPE blocks */
 
         Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock, NULL);
+        if (ACPI_FAILURE (Status))
+        {
+            ACPI_EXCEPTION ((AE_INFO, Status,
+                "Could not disable GPEs in GPE block"));
+        }
 
         Status = AcpiEvRemoveGlobalLockHandler ();
-        if (ACPI_FAILURE(Status))
+        if (ACPI_FAILURE (Status))
         {
-            ACPI_ERROR ((AE_INFO,
+            ACPI_EXCEPTION ((AE_INFO, Status,
                 "Could not remove Global Lock handler"));
         }
 
@@ -306,7 +311,7 @@ AcpiEvTerminate (
     /* Remove SCI handlers */
 
     Status = AcpiEvRemoveAllSciHandlers ();
-    if (ACPI_FAILURE(Status))
+    if (ACPI_FAILURE (Status))
     {
         ACPI_ERROR ((AE_INFO,
             "Could not remove SCI handler"));
@@ -315,6 +320,12 @@ AcpiEvTerminate (
     /* Deallocate all handler objects installed within GPE info structs */
 
     Status = AcpiEvWalkGpeList (AcpiEvDeleteGpeHandlers, NULL);
+    if (ACPI_FAILURE (Status))
+    {
+        ACPI_EXCEPTION ((AE_INFO, Status,
+            "Could not delete GPE handlers"));
+    }
+
 
     /* Return to original mode if necessary */
 
diff --git a/drivers/bus/acpi/acpica/events/evregion.c b/drivers/bus/acpi/acpica/events/evregion.c
index ea774e27b18..209bde717e4 100644
--- a/drivers/bus/acpi/acpica/events/evregion.c
+++ b/drivers/bus/acpi/acpica/events/evregion.c
@@ -929,11 +929,11 @@ AcpiEvOrphanEcRegMethod (
     Objects[1].Type = ACPI_TYPE_INTEGER;
     Objects[1].Integer.Value = ACPI_REG_CONNECT;
 
-    Status = AcpiEvaluateObject (RegMethod, NULL, &Args, NULL);
+    (void) AcpiEvaluateObject (RegMethod, NULL, &Args, NULL);
 
 Exit:
     /* We ignore all errors from above, don't care */
 
-    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
+    (void) AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
     return_VOID;
 }
diff --git a/drivers/bus/acpi/acpica/events/evrgnini.c b/drivers/bus/acpi/acpica/events/evrgnini.c
index 063afaa3055..5210a719d0d 100644
--- a/drivers/bus/acpi/acpica/events/evrgnini.c
+++ b/drivers/bus/acpi/acpica/events/evrgnini.c
@@ -255,7 +255,6 @@ AcpiEvPciConfigRegionSetup (
                          * root bridge. Still need to return a context object
                          * for the new PCI_Config operation region, however.
                          */
-                        Status = AE_OK;
                     }
                     else
                     {
diff --git a/drivers/bus/acpi/acpica/hardware/hwxfsleep.c b/drivers/bus/acpi/acpica/hardware/hwxfsleep.c
index 6531d0174b8..d1c35c5a11d 100644
--- a/drivers/bus/acpi/acpica/hardware/hwxfsleep.c
+++ b/drivers/bus/acpi/acpica/hardware/hwxfsleep.c
@@ -249,6 +249,10 @@ AcpiEnterSleepStateS4bios (
 
     Status = AcpiHwWritePort (AcpiGbl_FADT.SmiCommand,
         (UINT32) AcpiGbl_FADT.S4BiosRequest, 8);
+    if (ACPI_FAILURE (Status))
+    {
+        return_ACPI_STATUS (Status);
+    }
 
     do {
         AcpiOsStall (ACPI_USEC_PER_MSEC);
diff --git a/drivers/bus/acpi/acpica/include/acdebug.h b/drivers/bus/acpi/acpica/include/acdebug.h
index 6db3e3626c0..c8bdf774f8d 100644
--- a/drivers/bus/acpi/acpica/include/acdebug.h
+++ b/drivers/bus/acpi/acpica/include/acdebug.h
@@ -284,6 +284,10 @@ void
 AcpiDbGetBusInfo (
     void);
 
+ACPI_STATUS
+AcpiDbDisplayFields (
+    UINT32                  AddressSpaceId);
+
 
 /*
  * dbdisply - debug display commands
diff --git a/drivers/bus/acpi/acpica/include/acpixf.h b/drivers/bus/acpi/acpica/include/acpixf.h
index d84c008daf9..bf88d566950 100644
--- a/drivers/bus/acpi/acpica/include/acpixf.h
+++ b/drivers/bus/acpi/acpica/include/acpixf.h
@@ -46,7 +46,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20190816
+#define ACPI_CA_VERSION                 0x20191018
 
 #include "acconfig.h"
 #include "actypes.h"
@@ -556,7 +556,13 @@ AcpiInstallTable (
 ACPI_EXTERNAL_RETURN_STATUS (
 ACPI_STATUS
 AcpiLoadTable (
-    ACPI_TABLE_HEADER       *Table))
+    ACPI_TABLE_HEADER       *Table,
+    UINT32                  *TableIdx))
+
+ACPI_EXTERNAL_RETURN_STATUS (
+ACPI_STATUS
+AcpiUnloadTable (
+    UINT32                  TableIndex))
 
 ACPI_EXTERNAL_RETURN_STATUS (
 ACPI_STATUS
diff --git a/drivers/bus/acpi/acpica/include/acstruct.h b/drivers/bus/acpi/acpica/include/acstruct.h
index ae168d75780..755df603c0f 100644
--- a/drivers/bus/acpi/acpica/include/acstruct.h
+++ b/drivers/bus/acpi/acpica/include/acstruct.h
@@ -249,6 +249,19 @@ typedef struct acpi_device_walk_info
 } ACPI_DEVICE_WALK_INFO;
 
 
+/* Info used by Acpi  AcpiDbDisplayFields */
+
+typedef struct acpi_region_walk_info
+{
+    UINT32                          DebugLevel;
+    UINT32                          Count;
+    ACPI_OWNER_ID                   OwnerId;
+    UINT8                           DisplayType;
+    UINT32                          AddressSpaceId;
+
+} ACPI_REGION_WALK_INFO;
+
+
 /* TBD: [Restructure] Merge with struct above */
 
 typedef struct acpi_walk_info
diff --git a/drivers/bus/acpi/acpica/include/acutils.h b/drivers/bus/acpi/acpica/include/acutils.h
index 7e4922f810f..1bf5fd157f6 100644
--- a/drivers/bus/acpi/acpica/include/acutils.h
+++ b/drivers/bus/acpi/acpica/include/acutils.h
@@ -182,10 +182,11 @@ typedef struct acpi_pkg_info
 
 /* AcpiUtDumpBuffer */
 
-#define DB_BYTE_DISPLAY     1
-#define DB_WORD_DISPLAY     2
-#define DB_DWORD_DISPLAY    4
-#define DB_QWORD_DISPLAY    8
+#define DB_BYTE_DISPLAY      0x01
+#define DB_WORD_DISPLAY      0x02
+#define DB_DWORD_DISPLAY     0x04
+#define DB_QWORD_DISPLAY     0x08
+#define DB_DISPLAY_DATA_ONLY 0x10
 
 
 /*
diff --git a/drivers/bus/acpi/acpica/include/platform/acfreebsd.h b/drivers/bus/acpi/acpica/include/platform/acfreebsd.h
index 40da5b0a177..d49393890c8 100644
--- a/drivers/bus/acpi/acpica/include/platform/acfreebsd.h
+++ b/drivers/bus/acpi/acpica/include/platform/acfreebsd.h
@@ -95,6 +95,10 @@
 
 #define DEBUGGER_THREADING  0   /* integrated with DDB */
 
+#ifdef INVARIANTS
+#define ACPI_MUTEX_DEBUG
+#endif
+
 #else /* _KERNEL */
 
 #if __STDC_HOSTED__
diff --git a/drivers/bus/acpi/acpica/namespace/nsconvert.c b/drivers/bus/acpi/acpica/namespace/nsconvert.c
index a96ff5bd4d9..fe854747ce6 100644
--- a/drivers/bus/acpi/acpica/namespace/nsconvert.c
+++ b/drivers/bus/acpi/acpica/namespace/nsconvert.c
@@ -562,5 +562,5 @@ AcpiNsConvertToReference (
 ErrorExit:
     ACPI_FREE (Name);
     *ReturnObject = NewObject;
-    return (AE_OK);
+    return (Status);
 }
diff --git a/drivers/bus/acpi/acpica/namespace/nsdump.c b/drivers/bus/acpi/acpica/namespace/nsdump.c
index 67ff9369587..085630c8a76 100644
--- a/drivers/bus/acpi/acpica/namespace/nsdump.c
+++ b/drivers/bus/acpi/acpica/namespace/nsdump.c
@@ -369,7 +369,7 @@ AcpiNsDumpOneObject (
                     AcpiOsPrintf (" =");
                     for (i = 0; (i < ObjDesc->Buffer.Length && i < 12); i++)
                     {
-                        AcpiOsPrintf (" %.2hX", ObjDesc->Buffer.Pointer[i]);
+                        AcpiOsPrintf (" %2.2X", ObjDesc->Buffer.Pointer[i]);
                     }
                 }
                 AcpiOsPrintf ("\n");
@@ -466,7 +466,7 @@ AcpiNsDumpOneObject (
         case ACPI_TYPE_LOCAL_BANK_FIELD:
         case ACPI_TYPE_LOCAL_INDEX_FIELD:
 
-            AcpiOsPrintf (" Off %.3X Len %.2X Acc %.2hd\n",
+            AcpiOsPrintf (" Off %.3X Len %.2X Acc %.2X\n",
                 (ObjDesc->CommonField.BaseByteOffset * 8)
                     + ObjDesc->CommonField.StartFieldBitOffset,
                 ObjDesc->CommonField.BitLength,
@@ -651,8 +651,6 @@ AcpiNsDumpOneObject (
 
             goto Cleanup;
         }
-
-        ObjType = ACPI_TYPE_INVALID;   /* Terminate loop after next pass */
     }
 
 Cleanup:
diff --git a/drivers/bus/acpi/acpica/namespace/nsxfname.c b/drivers/bus/acpi/acpica/namespace/nsxfname.c
index 1d44670ef38..8c7e3710fb5 100644
--- a/drivers/bus/acpi/acpica/namespace/nsxfname.c
+++ b/drivers/bus/acpi/acpica/namespace/nsxfname.c
@@ -503,7 +503,7 @@ AcpiGetObjectInfo (
 
     if (Cls)
     {
-        NextIdString = AcpiNsCopyDeviceId (&Info->ClassCode,
+       (void) AcpiNsCopyDeviceId (&Info->ClassCode,
             Cls, NextIdString);
     }
 
diff --git a/drivers/bus/acpi/acpica/parser/psobject.c b/drivers/bus/acpi/acpica/parser/psobject.c
index fb9652ec85a..252c13fe580 100644
--- a/drivers/bus/acpi/acpica/parser/psobject.c
+++ b/drivers/bus/acpi/acpica/parser/psobject.c
@@ -544,7 +544,7 @@ AcpiPsCompleteOp (
             WalkState->Opcode = (*Op)->Common.AmlOpcode;
 
             Status = WalkState->AscendingCallback (WalkState);
-            Status = AcpiPsNextParseState (WalkState, *Op, Status);
+            (void) AcpiPsNextParseState (WalkState, *Op, Status);
 
             Status2 = AcpiPsCompleteThisOp (WalkState, *Op);
             if (ACPI_FAILURE (Status2))
@@ -553,7 +553,6 @@ AcpiPsCompleteOp (
             }
         }
 
-        Status = AE_OK;
         break;
 
     case AE_CTRL_BREAK:
@@ -574,7 +573,7 @@ AcpiPsCompleteOp (
         WalkState->Opcode = (*Op)->Common.AmlOpcode;
 
         Status = WalkState->AscendingCallback (WalkState);
-        Status = AcpiPsNextParseState (WalkState, *Op, Status);
+        (void) AcpiPsNextParseState (WalkState, *Op, Status);
 
         Status2 = AcpiPsCompleteThisOp (WalkState, *Op);
         if (ACPI_FAILURE (Status2))
@@ -582,7 +581,6 @@ AcpiPsCompleteOp (
             return_ACPI_STATUS (Status2);
         }
 
-        Status = AE_OK;
         break;
 
     case AE_CTRL_TERMINATE:
diff --git a/drivers/bus/acpi/acpica/resources/rscreate.c b/drivers/bus/acpi/acpica/resources/rscreate.c
index 5f8d5351abc..67ae548d2a9 100644
--- a/drivers/bus/acpi/acpica/resources/rscreate.c
+++ b/drivers/bus/acpi/acpica/resources/rscreate.c
@@ -373,6 +373,10 @@ AcpiRsCreatePciRoutingTable (
 
                 Status = AcpiNsHandleToPathname (
                     (ACPI_HANDLE) Node, &PathBuffer, FALSE);
+                if (ACPI_FAILURE (Status))
+                {
+                    return_ACPI_STATUS (Status);
+                }
 
                 /* +1 to include null terminator */
 
diff --git a/drivers/bus/acpi/acpica/tables/tbdata.c b/drivers/bus/acpi/acpica/tables/tbdata.c
index e6ac5bb1130..b4b6bb87e5e 100644
--- a/drivers/bus/acpi/acpica/tables/tbdata.c
+++ b/drivers/bus/acpi/acpica/tables/tbdata.c
@@ -1082,6 +1082,10 @@ AcpiTbLoadTable (
     }
 
     Status = AcpiNsLoadTable (TableIndex, ParentNode);
+    if (ACPI_FAILURE (Status))
+    {
+        return_ACPI_STATUS (Status);
+    }
 
     /*
      * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
diff --git a/drivers/bus/acpi/acpica/tables/tbxfload.c b/drivers/bus/acpi/acpica/tables/tbxfload.c
index 4db4f522fe3..bca66fee1ec 100644
--- a/drivers/bus/acpi/acpica/tables/tbxfload.c
+++ b/drivers/bus/acpi/acpica/tables/tbxfload.c
@@ -337,6 +337,8 @@ ACPI_EXPORT_SYMBOL_INIT (AcpiInstallTable)
  *
  * PARAMETERS:  Table               - Pointer to a buffer containing the ACPI
  *                                    table to be loaded.
+ *              TableIdx            - Pointer to a UINT32 for storing the table
+ *                                    index, might be NULL
  *
  * RETURN:      Status
  *
@@ -350,7 +352,8 @@ ACPI_EXPORT_SYMBOL_INIT (AcpiInstallTable)
 
 ACPI_STATUS
 AcpiLoadTable (
-    ACPI_TABLE_HEADER       *Table)
+    ACPI_TABLE_HEADER       *Table,
+    UINT32                  *TableIdx)
 {
     ACPI_STATUS             Status;
     UINT32                  TableIndex;
@@ -371,6 +374,11 @@ AcpiLoadTable (
     ACPI_INFO (("Host-directed Dynamic ACPI Table Load:"));
     Status = AcpiTbInstallAndLoadTable (ACPI_PTR_TO_PHYSADDR (Table),
         ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, FALSE, &TableIndex);
+    if (TableIdx)
+    {
+        *TableIdx = TableIndex;
+    }
+
     if (ACPI_SUCCESS (Status))
     {
         /* Complete the initialization/resolution of new objects */
@@ -474,3 +482,42 @@ AcpiUnloadParentTable (
 }
 
 ACPI_EXPORT_SYMBOL (AcpiUnloadParentTable)
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiUnloadTable
+ *
+ * PARAMETERS:  TableIndex          - Index as returned by AcpiLoadTable
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Via the TableIndex representing an SSDT or OEMx table, unloads
+ *              the table and deletes all namespace objects associated with
+ *              that table. Unloading of the DSDT is not allowed.
+ *              Note: Mainly intended to support hotplug removal of SSDTs.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiUnloadTable (
+    UINT32                  TableIndex)
+{
+    ACPI_STATUS             Status;
+
+
+    ACPI_FUNCTION_TRACE (AcpiUnloadTable);
+
+
+    if (TableIndex == 1)
+    {
+        /* TableIndex==1 means DSDT is the owner. DSDT cannot be unloaded */
+
+        return_ACPI_STATUS (AE_TYPE);
+    }
+
+    Status = AcpiTbUnloadTable (TableIndex);
+    return_ACPI_STATUS (Status);
+}
+
+ACPI_EXPORT_SYMBOL (AcpiUnloadTable)
diff --git a/drivers/bus/acpi/acpica/utilities/utbuffer.c b/drivers/bus/acpi/acpica/utilities/utbuffer.c
index e1fdc01ed2e..09d4bbe4c60 100644
--- a/drivers/bus/acpi/acpica/utilities/utbuffer.c
+++ b/drivers/bus/acpi/acpica/utilities/utbuffer.c
@@ -78,8 +78,10 @@ AcpiUtDumpBuffer (
     UINT32                  j;
     UINT32                  Temp32;
     UINT8                   BufChar;
+    UINT32                  DisplayDataOnly = Display & DB_DISPLAY_DATA_ONLY;
 
 
+    Display &= ~DB_DISPLAY_DATA_ONLY;
     if (!Buffer)
     {
         AcpiOsPrintf ("Null Buffer Pointer in DumpBuffer!\n");
@@ -97,7 +99,10 @@ AcpiUtDumpBuffer (
     {
         /* Print current offset */
 
-        AcpiOsPrintf ("%8.4X: ", (BaseOffset + i));
+        if (!DisplayDataOnly)
+        {
+            AcpiOsPrintf ("%8.4X: ", (BaseOffset + i));
+        }
 
         /* Print 16 hex chars */
 
@@ -149,38 +154,41 @@ AcpiUtDumpBuffer (
          * Print the ASCII equivalent characters but watch out for the bad
          * unprintable ones (printable chars are 0x20 through 0x7E)
          */
-        AcpiOsPrintf (" ");
-        for (j = 0; j < 16; j++)
+        if (!DisplayDataOnly)
         {
-            if (i + j >= Count)
+            AcpiOsPrintf (" ");
+            for (j = 0; j < 16; j++)
             {
-                AcpiOsPrintf ("\n");
-                return;
+                if (i + j >= Count)
+                {
+                    AcpiOsPrintf ("\n");
+                    return;
+                }
+
+                /*
+                 * Add comment characters so rest of line is ignored when
+                 * compiled
+                 */
+                if (j == 0)
+                {
+                    AcpiOsPrintf ("// ");
+                }
+
+                BufChar = Buffer[(ACPI_SIZE) i + j];
+                if (isprint (BufChar))
+                {
+                    AcpiOsPrintf ("%c", BufChar);
+                }
+                else
+                {
+                    AcpiOsPrintf (".");
+                }
             }
 
-            /*
-             * Add comment characters so rest of line is ignored when
-             * compiled
-             */
-            if (j == 0)
-            {
-                AcpiOsPrintf ("// ");
-            }
+            /* Done with that line. */
 
-            BufChar = Buffer[(ACPI_SIZE) i + j];
-            if (isprint (BufChar))
-            {
-                AcpiOsPrintf ("%c", BufChar);
-            }
-            else
-            {
-                AcpiOsPrintf (".");
-            }
+            AcpiOsPrintf ("\n");
         }
-
-        /* Done with that line. */
-
-        AcpiOsPrintf ("\n");
         i += 16;
     }
 
diff --git a/drivers/bus/acpi/acpica/utilities/uttrack.c b/drivers/bus/acpi/acpica/utilities/uttrack.c
index a3e50a18d1a..998b3d17b9b 100644
--- a/drivers/bus/acpi/acpica/utilities/uttrack.c
+++ b/drivers/bus/acpi/acpica/utilities/uttrack.c
@@ -756,7 +756,7 @@ AcpiUtDumpAllocations (
 
                     case ACPI_DESC_TYPE_PARSER:
 
-                        AcpiOsPrintf ("AmlOpcode 0x%04hX\n",
+                        AcpiOsPrintf ("AmlOpcode 0x%04X\n",
                             Descriptor->Op.Asl.AmlOpcode);
                         break;
 
diff --git a/media/doc/3rd Party Files.txt b/media/doc/3rd Party Files.txt
index 419672d3c3f..7863c686f99 100644
--- a/media/doc/3rd Party Files.txt	
+++ b/media/doc/3rd Party Files.txt	
@@ -91,5 +91,5 @@ Used Version: 1.6.37
 Website: http://libpng.sourceforge.net/
 
 Title: ACPICA
-Used Version: 20190509
+Used Version: 20191018
 Website: https://acpica.org/