Merge tag 'acpi-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These include an ACPICA update (to upstream revision 20190816),
  improvements of support for memory hot-add in the HMAT handling code
  and some assorted fixes and cleanups.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20190816
     including:
      * Internal limits change to support larger systems (Bob Moore).
      * Macros clean up (Bob Moore).
      * printf format string fixes (Bob Moore).
      * Full deployment of the ACPI_PRINTF_LIKE macro (Bob Moore).
      * Tools improvements (Bob Moore, Colin Ian King).
      * Windows _OSI support fixes (Jung-uk Kim).

   - Improve memory hot-add support in the ACPI HMAT handling code (Dan
     Williams, Keith Busch).

   - Fix the ACPI LPSS (Low-Power Subsystem) driver for Intel SoCs to
     save and restore private registers during system-wide suspend and
     resume on systems with the Lynxpoint PCH (Jarkko Nikula).

   - Convert the ACPI documentation related to LEDs to ReST (Sakari
     Ailus).

   - Fix assorted issues and make assorted minor improvements in the
     ACPI-related code (Al Stone, Andy Shevchenko, Jiri Slaby, Kelsey
     Skunberg, Krzysztof Wilczynski, Liguang Zhang, Wenwen Wang,
     YueHaibing)"

* tag 'acpi-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits)
  ACPI / PCI: fix acpi_pci_irq_enable() memory leak
  ACPI: custom_method: fix memory leaks
  ACPI: thermal: Remove redundant acpi_has_method() calls
  ACPI / CPPC: do not require the _PSD method
  ACPI: SBS: remove unused const variable 'SMBUS_PEC'
  ACPI / LPSS: Save/restore LPSS private registers also on Lynxpoint
  ACPI/PCI: Remove surplus parentheses from a return statement
  ACPICA: Update version to 20190816.
  ACPICA: Add "Windows 2019" string to _OSI support.
  ACPICA: Differentiate Windows 8.1 from Windows 8.
  ACPICA: Fully deploy ACPI_PRINTF_LIKE macro
  ACPICA: iASL,acpi_dump: Improve y/n query
  ACPICA: Fix issues with arg types within printf format strings
  ACPICA: Macros: remove pointer math on a null pointer
  ACPICA: Increase total number of possible Owner IDs
  ACPICA: Debugger: remove redundant assignment on obj_desc
  Documentation: ACPI: DSD: Convert LED documentation to ReST
  ACPI / APEI: Release resources if gen_pool_add() fails
  HMAT: Skip publishing target info for nodes with no online memory
  HMAT: Register attributes for memory hot add
  ...

29 files changed, 245 insertions, 134 deletions

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index d696f165a50e..60bbc5090abe 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -219,12 +219,13 @@ static void bsw_pwm_setup(struct lpss_private_data *pdata)
 }
 
 static const struct lpss_device_desc lpt_dev_desc = {
-	.flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR,
+	.flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR
+			| LPSS_SAVE_CTX,
 	.prv_offset = 0x800,
 };
 
 static const struct lpss_device_desc lpt_i2c_dev_desc = {
-	.flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR,
+	.flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR | LPSS_SAVE_CTX,
 	.prv_offset = 0x800,
 };
 
@@ -236,7 +237,8 @@ static struct property_entry uart_properties[] = {
 };
 
 static const struct lpss_device_desc lpt_uart_dev_desc = {
-	.flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR,
+	.flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR
+			| LPSS_SAVE_CTX,
 	.clk_con_id = "baudclk",
 	.prv_offset = 0x800,
 	.setup = lpss_uart_setup,
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 24f065114d42..2c4dda0787e8 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -279,9 +279,13 @@ static int acpi_processor_get_info(struct acpi_device *device)
 	}
 
 	if (acpi_duplicate_processor_id(pr->acpi_id)) {
-		dev_err(&device->dev,
-			"Failed to get unique processor _UID (0x%x)\n",
-			pr->acpi_id);
+		if (pr->acpi_id == 0xff)
+			dev_info_once(&device->dev,
+				"Entry not well-defined, consider updating BIOS\n");
+		else
+			dev_err(&device->dev,
+				"Failed to get unique processor _UID (0x%x)\n",
+				pr->acpi_id);
 		return -ENODEV;
 	}
 
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 13d513b81589..1ea52576f0a2 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -134,12 +134,12 @@ struct acpi_namespace_node {
 	union acpi_operand_object *object;	/* Interpreter object */
 	u8 descriptor_type;	/* Differentiate object descriptor types */
 	u8 type;		/* ACPI Type associated with this name */
-	u8 flags;		/* Miscellaneous flags */
-	acpi_owner_id owner_id;	/* Node creator */
+	u16 flags;		/* Miscellaneous flags */
 	union acpi_name_union name;	/* ACPI Name, always 4 chars per ACPI spec */
 	struct acpi_namespace_node *parent;	/* Parent node */
 	struct acpi_namespace_node *child;	/* First child */
 	struct acpi_namespace_node *peer;	/* First peer */
+	acpi_owner_id owner_id;	/* Node creator */
 
 	/*
 	 * The following fields are used by the ASL compiler and disassembler only
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index b2ef703d7df8..8def0e3d690f 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -153,8 +153,8 @@ struct acpi_object_method {
 	} dispatch;
 
 	u32 aml_length;
-	u8 thread_count;
 	acpi_owner_id owner_id;
+	u8 thread_count;
 };
 
 /* Flags for info_flags field above */
diff --git a/drivers/acpi/acpica/acstruct.h b/drivers/acpi/acpica/acstruct.h
index 8a4e6b4aaf2c..218ff4c8b817 100644
--- a/drivers/acpi/acpica/acstruct.h
+++ b/drivers/acpi/acpica/acstruct.h
@@ -167,9 +167,9 @@ struct acpi_evaluate_info {
 	u32 return_flags;	/* Used for return value analysis */
 	u32 return_btype;	/* Bitmapped type of the returned object */
 	u16 param_count;	/* Count of the input argument list */
+	u16 node_flags;		/* Same as Node->Flags */
 	u8 pass_number;		/* Parser pass number */
 	u8 return_object_type;	/* Object type of the returned object */
-	u8 node_flags;		/* Same as Node->Flags */
 	u8 flags;		/* General flags */
 };
 
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 9022537567e9..601808be86d1 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -686,22 +686,26 @@ void acpi_ut_delete_address_lists(void);
 /*
  * utxferror - various error/warning output functions
  */
+ACPI_PRINTF_LIKE(5)
 void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_predefined_warning(const char *module_name,
 			   u32 line_number,
 			   char *pathname,
-			   u8 node_flags, const char *format, ...);
+			   u16 node_flags, const char *format, ...);
 
+ACPI_PRINTF_LIKE(5)
 void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_predefined_info(const char *module_name,
 			u32 line_number,
-			char *pathname, u8 node_flags, const char *format, ...);
+			char *pathname,
+			u16 node_flags, const char *format, ...);
 
+ACPI_PRINTF_LIKE(5)
 void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_predefined_bios_error(const char *module_name,
 			      u32 line_number,
 			      char *pathname,
-			      u8 node_flags, const char *format, ...);
+			      u16 node_flags, const char *format, ...);
 
 void
 acpi_ut_prefixed_namespace_error(const char *module_name,
diff --git a/drivers/acpi/acpica/dbhistry.c b/drivers/acpi/acpica/dbhistry.c
index 7809bd94a18d..47d2e5059849 100644
--- a/drivers/acpi/acpica/dbhistry.c
+++ b/drivers/acpi/acpica/dbhistry.c
@@ -121,7 +121,7 @@ void acpi_db_display_history(void)
 
 	for (i = 0; i < acpi_gbl_num_history; i++) {
 		if (acpi_gbl_history_buffer[history_index].command) {
-			acpi_os_printf("%3ld %s\n",
+			acpi_os_printf("%3u %s\n",
 				       acpi_gbl_history_buffer[history_index].
 				       cmd_num,
 				       acpi_gbl_history_buffer[history_index].
diff --git a/drivers/acpi/acpica/dbinput.c b/drivers/acpi/acpica/dbinput.c
index 3e5f95390f0d..55a7e10998d8 100644
--- a/drivers/acpi/acpica/dbinput.c
+++ b/drivers/acpi/acpica/dbinput.c
@@ -593,7 +593,7 @@ static u32 acpi_db_get_line(char *input_buffer)
 	     input_buffer)) {
 		acpi_os_printf
 		    ("Buffer overflow while parsing input line (max %u characters)\n",
-		     sizeof(acpi_gbl_db_parsed_buf));
+		     (u32)sizeof(acpi_gbl_db_parsed_buf));
 		return (0);
 	}
 
@@ -853,24 +853,24 @@ acpi_db_command_dispatch(char *input_buffer,
 
 		if (param_count == 0) {
 			acpi_os_printf
-			    ("Current debug level for file output is:    %8.8lX\n",
+			    ("Current debug level for file output is:    %8.8X\n",
 			     acpi_gbl_db_debug_level);
 			acpi_os_printf
-			    ("Current debug level for console output is: %8.8lX\n",
+			    ("Current debug level for console output is: %8.8X\n",
 			     acpi_gbl_db_console_debug_level);
 		} else if (param_count == 2) {
 			temp = acpi_gbl_db_console_debug_level;
 			acpi_gbl_db_console_debug_level =
 			    strtoul(acpi_gbl_db_args[1], NULL, 16);
 			acpi_os_printf
-			    ("Debug Level for console output was %8.8lX, now %8.8lX\n",
+			    ("Debug Level for console output was %8.8X, now %8.8X\n",
 			     temp, acpi_gbl_db_console_debug_level);
 		} else {
 			temp = acpi_gbl_db_debug_level;
 			acpi_gbl_db_debug_level =
 			    strtoul(acpi_gbl_db_args[1], NULL, 16);
 			acpi_os_printf
-			    ("Debug Level for file output was %8.8lX, now %8.8lX\n",
+			    ("Debug Level for file output was %8.8X, now %8.8X\n",
 			     temp, acpi_gbl_db_debug_level);
 		}
 		break;
diff --git a/drivers/acpi/acpica/dbmethod.c b/drivers/acpi/acpica/dbmethod.c
index d8b7a0fe92ec..76a15b6ffc5d 100644
--- a/drivers/acpi/acpica/dbmethod.c
+++ b/drivers/acpi/acpica/dbmethod.c
@@ -302,6 +302,10 @@ acpi_status acpi_db_disassemble_method(char *name)
 	}
 
 	status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
 	walk_state->owner_id = obj_desc->method.owner_id;
 
 	/* Push start scope on scope stack and make it current */
diff --git a/drivers/acpi/acpica/dbobject.c b/drivers/acpi/acpica/dbobject.c
index d220168dca01..f9fc84bc3e84 100644
--- a/drivers/acpi/acpica/dbobject.c
+++ b/drivers/acpi/acpica/dbobject.c
@@ -394,7 +394,6 @@ void acpi_db_decode_locals(struct acpi_walk_state *walk_state)
 	u8 display_locals = FALSE;
 
 	node = walk_state->method_node;
-	obj_desc = walk_state->method_desc;
 
 	/* There are no locals for the module-level code case */
 
diff --git a/drivers/acpi/acpica/dbstats.c b/drivers/acpi/acpica/dbstats.c
index bf620937c79b..3af88e70238c 100644
--- a/drivers/acpi/acpica/dbstats.c
+++ b/drivers/acpi/acpica/dbstats.c
@@ -341,17 +341,17 @@ acpi_status acpi_db_display_statistics(char *type_arg)
 			       "ACPI_TYPE", "NODES", "OBJECTS");
 
 		for (i = 0; i < ACPI_TYPE_NS_NODE_MAX; i++) {
-			acpi_os_printf("%16.16s % 10ld% 10ld\n",
+			acpi_os_printf("%16.16s %10u %10u\n",
 				       acpi_ut_get_type_name(i),
 				       acpi_gbl_node_type_count[i],
 				       acpi_gbl_obj_type_count[i]);
 		}
 
-		acpi_os_printf("%16.16s % 10ld% 10ld\n", "Misc/Unknown",
+		acpi_os_printf("%16.16s %10u %10u\n", "Misc/Unknown",
 			       acpi_gbl_node_type_count_misc,
 			       acpi_gbl_obj_type_count_misc);
 
-		acpi_os_printf("%16.16s % 10ld% 10ld\n", "TOTALS:",
+		acpi_os_printf("%16.16s %10u %10u\n", "TOTALS:",
 			       acpi_gbl_num_nodes, acpi_gbl_num_objects);
 		break;
 
@@ -379,16 +379,14 @@ acpi_status acpi_db_display_statistics(char *type_arg)
 	case CMD_STAT_MISC:
 
 		acpi_os_printf("\nMiscellaneous Statistics:\n\n");
-		acpi_os_printf("Calls to AcpiPsFind:.. ........% 7ld\n",
+		acpi_os_printf("%-28s:     %7u\n", "Calls to AcpiPsFind",
 			       acpi_gbl_ps_find_count);
-		acpi_os_printf("Calls to AcpiNsLookup:..........% 7ld\n",
+		acpi_os_printf("%-28s:     %7u\n", "Calls to AcpiNsLookup",
 			       acpi_gbl_ns_lookup_count);
 
-		acpi_os_printf("\n");
-
-		acpi_os_printf("Mutex usage:\n\n");
+		acpi_os_printf("\nMutex usage:\n\n");
 		for (i = 0; i < ACPI_NUM_MUTEX; i++) {
-			acpi_os_printf("%-28s:     % 7ld\n",
+			acpi_os_printf("%-28s:     %7u\n",
 				       acpi_ut_get_mutex_name(i),
 				       acpi_gbl_mutex_info[i].use_count);
 		}
@@ -399,87 +397,87 @@ acpi_status acpi_db_display_statistics(char *type_arg)
 		acpi_os_printf("\nInternal object sizes:\n\n");
 
 		acpi_os_printf("Common         %3d\n",
-			       sizeof(struct acpi_object_common));
+			       (u32)sizeof(struct acpi_object_common));
 		acpi_os_printf("Number         %3d\n",
-			       sizeof(struct acpi_object_integer));
+			       (u32)sizeof(struct acpi_object_integer));
 		acpi_os_printf("String         %3d\n",
-			       sizeof(struct acpi_object_string));
+			       (u32)sizeof(struct acpi_object_string));
 		acpi_os_printf("Buffer         %3d\n",
-			       sizeof(struct acpi_object_buffer));
+			       (u32)sizeof(struct acpi_object_buffer));
 		acpi_os_printf("Package        %3d\n",
-			       sizeof(struct acpi_object_package));
+			       (u32)sizeof(struct acpi_object_package));
 		acpi_os_printf("BufferField    %3d\n",
-			       sizeof(struct acpi_object_buffer_field));
+			       (u32)sizeof(struct acpi_object_buffer_field));
 		acpi_os_printf("Device         %3d\n",
-			       sizeof(struct acpi_object_device));
+			       (u32)sizeof(struct acpi_object_device));
 		acpi_os_printf("Event          %3d\n",
-			       sizeof(struct acpi_object_event));
+			       (u32)sizeof(struct acpi_object_event));
 		acpi_os_printf("Method         %3d\n",
-			       sizeof(struct acpi_object_method));
+			       (u32)sizeof(struct acpi_object_method));
 		acpi_os_printf("Mutex          %3d\n",
-			       sizeof(struct acpi_object_mutex));
+			       (u32)sizeof(struct acpi_object_mutex));
 		acpi_os_printf("Region         %3d\n",
-			       sizeof(struct acpi_object_region));
+			       (u32)sizeof(struct acpi_object_region));
 		acpi_os_printf("PowerResource  %3d\n",
-			       sizeof(struct acpi_object_power_resource));
+			       (u32)sizeof(struct acpi_object_power_resource));
 		acpi_os_printf("Processor      %3d\n",
-			       sizeof(struct acpi_object_processor));
+			       (u32)sizeof(struct acpi_object_processor));
 		acpi_os_printf("ThermalZone    %3d\n",
-			       sizeof(struct acpi_object_thermal_zone));
+			       (u32)sizeof(struct acpi_object_thermal_zone));
 		acpi_os_printf("RegionField    %3d\n",
-			       sizeof(struct acpi_object_region_field));
+			       (u32)sizeof(struct acpi_object_region_field));
 		acpi_os_printf("BankField      %3d\n",
-			       sizeof(struct acpi_object_bank_field));
+			       (u32)sizeof(struct acpi_object_bank_field));
 		acpi_os_printf("IndexField     %3d\n",
-			       sizeof(struct acpi_object_index_field));
+			       (u32)sizeof(struct acpi_object_index_field));
 		acpi_os_printf("Reference      %3d\n",
-			       sizeof(struct acpi_object_reference));
+			       (u32)sizeof(struct acpi_object_reference));
 		acpi_os_printf("Notify         %3d\n",
-			       sizeof(struct acpi_object_notify_handler));
+			       (u32)sizeof(struct acpi_object_notify_handler));
 		acpi_os_printf("AddressSpace   %3d\n",
-			       sizeof(struct acpi_object_addr_handler));
+			       (u32)sizeof(struct acpi_object_addr_handler));
 		acpi_os_printf("Extra          %3d\n",
-			       sizeof(struct acpi_object_extra));
+			       (u32)sizeof(struct acpi_object_extra));
 		acpi_os_printf("Data           %3d\n",
-			       sizeof(struct acpi_object_data));
+			       (u32)sizeof(struct acpi_object_data));
 
 		acpi_os_printf("\n");
 
 		acpi_os_printf("ParseObject    %3d\n",
-			       sizeof(struct acpi_parse_obj_common));
+			       (u32)sizeof(struct acpi_parse_obj_common));
 		acpi_os_printf("ParseObjectNamed %3d\n",
-			       sizeof(struct acpi_parse_obj_named));
+			       (u32)sizeof(struct acpi_parse_obj_named));
 		acpi_os_printf("ParseObjectAsl %3d\n",
-			       sizeof(struct acpi_parse_obj_asl));
+			       (u32)sizeof(struct acpi_parse_obj_asl));
 		acpi_os_printf("OperandObject  %3d\n",
-			       sizeof(union acpi_operand_object));
+			       (u32)sizeof(union acpi_operand_object));
 		acpi_os_printf("NamespaceNode  %3d\n",
-			       sizeof(struct acpi_namespace_node));
+			       (u32)sizeof(struct acpi_namespace_node));
 		acpi_os_printf("AcpiObject     %3d\n",
-			       sizeof(union acpi_object));
+			       (u32)sizeof(union acpi_object));
 
 		acpi_os_printf("\n");
 
 		acpi_os_printf("Generic State  %3d\n",
-			       sizeof(union acpi_generic_state));
+			       (u32)sizeof(union acpi_generic_state));
 		acpi_os_printf("Common State   %3d\n",
-			       sizeof(struct acpi_common_state));
+			       (u32)sizeof(struct acpi_common_state));
 		acpi_os_printf("Control State  %3d\n",
-			       sizeof(struct acpi_control_state));
+			       (u32)sizeof(struct acpi_control_state));
 		acpi_os_printf("Update State   %3d\n",
-			       sizeof(struct acpi_update_state));
+			       (u32)sizeof(struct acpi_update_state));
 		acpi_os_printf("Scope State    %3d\n",
-			       sizeof(struct acpi_scope_state));
+			       (u32)sizeof(struct acpi_scope_state));
 		acpi_os_printf("Parse Scope    %3d\n",
-			       sizeof(struct acpi_pscope_state));
+			       (u32)sizeof(struct acpi_pscope_state));
 		acpi_os_printf("Package State  %3d\n",
-			       sizeof(struct acpi_pkg_state));
+			       (u32)sizeof(struct acpi_pkg_state));
 		acpi_os_printf("Thread State   %3d\n",
-			       sizeof(struct acpi_thread_state));
+			       (u32)sizeof(struct acpi_thread_state));
 		acpi_os_printf("Result Values  %3d\n",
-			       sizeof(struct acpi_result_values));
+			       (u32)sizeof(struct acpi_result_values));
 		acpi_os_printf("Notify Info    %3d\n",
-			       sizeof(struct acpi_notify_info));
+			       (u32)sizeof(struct acpi_notify_info));
 		break;
 
 	case CMD_STAT_STACK:
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index 6526b2deeaad..a9bc938a3b55 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -94,7 +94,7 @@ static struct acpi_exdump_info acpi_ex_dump_method[9] = {
 	 "Parameter Count"},
 	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.sync_level), "Sync Level"},
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.mutex), "Mutex"},
-	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"},
+	{ACPI_EXD_UINT16, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"},
 	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.thread_count), "Thread Count"},
 	{ACPI_EXD_UINT32, ACPI_EXD_OFFSET(method.aml_length), "Aml Length"},
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.aml_start), "Aml Start"}
@@ -269,8 +269,8 @@ static struct acpi_exdump_info acpi_ex_dump_field_common[7] = {
 
 static struct acpi_exdump_info acpi_ex_dump_node[7] = {
 	{ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_node), NULL},
-	{ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(flags), "Flags"},
-	{ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"},
+	{ACPI_EXD_UINT16, ACPI_EXD_NSOFFSET(flags), "Flags"},
+	{ACPI_EXD_UINT16, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"},
 	{ACPI_EXD_LIST, ACPI_EXD_NSOFFSET(object), "Object List"},
 	{ACPI_EXD_NODE, ACPI_EXD_NSOFFSET(parent), "Parent"},
 	{ACPI_EXD_NODE, ACPI_EXD_NSOFFSET(child), "Child"},
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index 2566e2d4c780..3f045b5953b2 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -598,7 +598,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
 				if (flags & ACPI_NS_PREFIX_MUST_EXIST) {
 					acpi_os_printf(ACPI_MSG_BIOS_ERROR
 						       "Object does not exist: %4.4s\n",
-						       &simple_name);
+						       (char *)&simple_name);
 				}
 #endif
 				/* Name not found in ACPI namespace */
diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c
index 6eb63db72249..fe9b3639a87d 100644
--- a/drivers/acpi/acpica/nsalloc.c
+++ b/drivers/acpi/acpica/nsalloc.c
@@ -241,7 +241,7 @@ void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namesp
 	node->type = (u8) type;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
-			  "%4.4s (%s) [Node %p Owner %X] added to %4.4s (%s) [Node %p]\n",
+			  "%4.4s (%s) [Node %p Owner %3.3X] added to %4.4s (%s) [Node %p]\n",
 			  acpi_ut_get_node_name(node),
 			  acpi_ut_get_type_name(node->type), node, owner_id,
 			  acpi_ut_get_node_name(parent_node),
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 1b12c172e115..9731d7cf1b83 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -197,7 +197,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
 
 	/* Now we can print out the pertinent information */
 
-	acpi_os_printf(" %-12s %p %2.2X ",
+	acpi_os_printf(" %-12s %p %3.3X ",
 		       acpi_ut_get_type_name(type), this_node,
 		       this_node->owner_id);
 
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index 8d776256b213..663d85e0adba 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -126,7 +126,7 @@ static const struct acpi_repair_info acpi_ns_repairable_names[] = {
 
 #define ACPI_FDE_FIELD_COUNT        5
 #define ACPI_FDE_BYTE_BUFFER_SIZE   5
-#define ACPI_FDE_DWORD_BUFFER_SIZE  (ACPI_FDE_FIELD_COUNT * sizeof (u32))
+#define ACPI_FDE_DWORD_BUFFER_SIZE  (ACPI_FDE_FIELD_COUNT * (u32) sizeof (u32))
 
 /******************************************************************************
  *
diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c
index 91a4b984f224..309440010ab2 100644
--- a/drivers/acpi/acpica/tbdata.c
+++ b/drivers/acpi/acpica/tbdata.c
@@ -750,6 +750,7 @@ acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index)
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
+
 	acpi_ns_delete_namespace_by_owner(owner_id);
 	acpi_ut_release_write_lock(&acpi_gbl_namespace_rw_lock);
 	return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 01b1b36c8a8e..5b169b5f0f1a 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -158,7 +158,7 @@ acpi_debug_print(u32 requested_debug_level,
 	 * Display the module name, current line number, thread ID (if requested),
 	 * current procedure nesting level, and the current procedure name
 	 */
-	acpi_os_printf("%9s-%04ld ", module_name, line_number);
+	acpi_os_printf("%9s-%04d ", module_name, line_number);
 
 #ifdef ACPI_APPLICATION
 	/*
@@ -177,7 +177,7 @@ acpi_debug_print(u32 requested_debug_level,
 		fill_count = 0;
 	}
 
-	acpi_os_printf("[%02ld] %*s",
+	acpi_os_printf("[%02d] %*s",
 		       acpi_gbl_nesting_level, acpi_gbl_nesting_level + 1, " ");
 	acpi_os_printf("%s%*s: ",
 		       acpi_ut_trim_function_name(function_name), fill_count,
diff --git a/drivers/acpi/acpica/uterror.c b/drivers/acpi/acpica/uterror.c
index 075457341bad..918aca7c4db4 100644
--- a/drivers/acpi/acpica/uterror.c
+++ b/drivers/acpi/acpica/uterror.c
@@ -39,7 +39,7 @@ void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_predefined_warning(const char *module_name,
 			   u32 line_number,
 			   char *pathname,
-			   u8 node_flags, const char *format, ...)
+			   u16 node_flags, const char *format, ...)
 {
 	va_list arg_list;
 
@@ -81,7 +81,7 @@ acpi_ut_predefined_warning(const char *module_name,
 void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_predefined_info(const char *module_name,
 			u32 line_number,
-			char *pathname, u8 node_flags, const char *format, ...)
+			char *pathname, u16 node_flags, const char *format, ...)
 {
 	va_list arg_list;
 
@@ -124,7 +124,7 @@ void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_predefined_bios_error(const char *module_name,
 			      u32 line_number,
 			      char *pathname,
-			      u8 node_flags, const char *format, ...)
+			      u16 node_flags, const char *format, ...)
 {
 	va_list arg_list;
 
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 688c61a90725..ad2b218039d0 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -65,13 +65,14 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = {
 	{"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2},	/* Windows Vista SP2 - Added 09/2010 */
 	{"Windows 2009", NULL, 0, ACPI_OSI_WIN_7},	/* Windows 7 and Server 2008 R2 - Added 09/2009 */
 	{"Windows 2012", NULL, 0, ACPI_OSI_WIN_8},	/* Windows 8 and Server 2012 - Added 08/2012 */
-	{"Windows 2013", NULL, 0, ACPI_OSI_WIN_8},	/* Windows 8.1 and Server 2012 R2 - Added 01/2014 */
+	{"Windows 2013", NULL, 0, ACPI_OSI_WIN_8_1},	/* Windows 8.1 and Server 2012 R2 - Added 01/2014 */
 	{"Windows 2015", NULL, 0, ACPI_OSI_WIN_10},	/* Windows 10 - Added 03/2015 */
 	{"Windows 2016", NULL, 0, ACPI_OSI_WIN_10_RS1},	/* Windows 10 version 1607 - Added 12/2017 */
 	{"Windows 2017", NULL, 0, ACPI_OSI_WIN_10_RS2},	/* Windows 10 version 1703 - Added 12/2017 */
 	{"Windows 2017.2", NULL, 0, ACPI_OSI_WIN_10_RS3},	/* Windows 10 version 1709 - Added 02/2018 */
 	{"Windows 2018", NULL, 0, ACPI_OSI_WIN_10_RS4},	/* Windows 10 version 1803 - Added 11/2018 */
 	{"Windows 2018.2", NULL, 0, ACPI_OSI_WIN_10_RS5},	/* Windows 10 version 1809 - Added 11/2018 */
+	{"Windows 2019", NULL, 0, ACPI_OSI_WIN_10_19H1},	/* Windows 10 version 1903 - Added 08/2019 */
 
 	/* Feature Group Strings */
 
diff --git a/drivers/acpi/acpica/utownerid.c b/drivers/acpi/acpica/utownerid.c
index 5eb8b76ce9d8..d3525ef8ed28 100644
--- a/drivers/acpi/acpica/utownerid.c
+++ b/drivers/acpi/acpica/utownerid.c
@@ -38,7 +38,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id *owner_id)
 
 	if (*owner_id) {
 		ACPI_ERROR((AE_INFO,
-			    "Owner ID [0x%2.2X] already exists", *owner_id));
+			    "Owner ID [0x%3.3X] already exists", *owner_id));
 		return_ACPI_STATUS(AE_ALREADY_EXISTS);
 	}
 
@@ -88,14 +88,14 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id *owner_id)
 				/*
 				 * Construct encoded ID from the index and bit position
 				 *
-				 * Note: Last [j].k (bit 255) is never used and is marked
+				 * Note: Last [j].k (bit 4095) is never used and is marked
 				 * permanently allocated (prevents +1 overflow)
 				 */
 				*owner_id =
 				    (acpi_owner_id)((k + 1) + ACPI_MUL_32(j));
 
 				ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
-						  "Allocated OwnerId: %2.2X\n",
+						  "Allocated OwnerId: 0x%3.3X\n",
 						  (unsigned int)*owner_id));
 				goto exit;
 			}
@@ -116,7 +116,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id *owner_id)
 	 */
 	status = AE_OWNER_ID_LIMIT;
 	ACPI_ERROR((AE_INFO,
-		    "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
+		    "Could not allocate new OwnerId (4095 max), AE_OWNER_ID_LIMIT"));
 
 exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
@@ -153,7 +153,7 @@ void acpi_ut_release_owner_id(acpi_owner_id *owner_id_ptr)
 	/* Zero is not a valid owner_ID */
 
 	if (owner_id == 0) {
-		ACPI_ERROR((AE_INFO, "Invalid OwnerId: 0x%2.2X", owner_id));
+		ACPI_ERROR((AE_INFO, "Invalid OwnerId: 0x%3.3X", owner_id));
 		return_VOID;
 	}
 
@@ -179,7 +179,7 @@ void acpi_ut_release_owner_id(acpi_owner_id *owner_id_ptr)
 		acpi_gbl_owner_id_mask[index] ^= bit;
 	} else {
 		ACPI_ERROR((AE_INFO,
-			    "Release of non-allocated OwnerId: 0x%2.2X",
+			    "Attempted release of non-allocated OwnerId: 0x%3.3X",
 			    owner_id + 1));
 	}
 
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index a66e00fe31fe..777f6f7122b4 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -153,6 +153,7 @@ static void ghes_unmap(void __iomem *vaddr, enum fixed_addresses fixmap_idx)
 int ghes_estatus_pool_init(int num_ghes)
 {
 	unsigned long addr, len;
+	int rc;
 
 	ghes_estatus_pool = gen_pool_create(GHES_ESTATUS_POOL_MIN_ALLOC_ORDER, -1);
 	if (!ghes_estatus_pool)
@@ -164,7 +165,7 @@ int ghes_estatus_pool_init(int num_ghes)
 	ghes_estatus_pool_size_request = PAGE_ALIGN(len);
 	addr = (unsigned long)vmalloc(PAGE_ALIGN(len));
 	if (!addr)
-		return -ENOMEM;
+		goto err_pool_alloc;
 
 	/*
 	 * New allocation must be visible in all pgd before it can be found by
@@ -172,7 +173,19 @@ int ghes_estatus_pool_init(int num_ghes)
 	 */
 	vmalloc_sync_all();
 
-	return gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1);
+	rc = gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1);
+	if (rc)
+		goto err_pool_add;
+
+	return 0;
+
+err_pool_add:
+	vfree((void *)addr);
+
+err_pool_alloc:
+	gen_pool_destroy(ghes_estatus_pool);
+
+	return -ENOMEM;
 }
 
 static int map_gen_v2(struct ghes *ghes)
@@ -483,7 +496,7 @@ static void ghes_do_proc(struct ghes *ghes,
 	int sev, sec_sev;
 	struct acpi_hest_generic_data *gdata;
 	guid_t *sec_type;
-	guid_t *fru_id = &NULL_UUID_LE;
+	const guid_t *fru_id = &guid_null;
 	char *fru_text = "";
 
 	sev = ghes_severity(estatus->error_severity);
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 15f103d7532b..3b2525908dd8 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -365,8 +365,10 @@ static int acpi_get_psd(struct cpc_desc *cpc_ptr, acpi_handle handle)
 	union acpi_object  *psd = NULL;
 	struct acpi_psd_package *pdomain;
 
-	status = acpi_evaluate_object_typed(handle, "_PSD", NULL, &buffer,
-			ACPI_TYPE_PACKAGE);
+	status = acpi_evaluate_object_typed(handle, "_PSD", NULL,
+					    &buffer, ACPI_TYPE_PACKAGE);
+	if (status == AE_NOT_FOUND)	/* _PSD is optional */
+		return 0;
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c
index b2ef4c2ec955..fd66a736621c 100644
--- a/drivers/acpi/custom_method.c
+++ b/drivers/acpi/custom_method.c
@@ -49,8 +49,10 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf,
 	if ((*ppos > max_size) ||
 	    (*ppos + count > max_size) ||
 	    (*ppos + count < count) ||
-	    (count > uncopied_bytes))
+	    (count > uncopied_bytes)) {
+		kfree(buf);
 		return -EINVAL;
+	}
 
 	if (copy_from_user(buf + (*ppos), user_buf, count)) {
 		kfree(buf);
@@ -70,6 +72,7 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf,
 		add_taint(TAINT_OVERRIDDEN_ACPI_TABLE, LOCKDEP_NOW_UNRELIABLE);
 	}
 
+	kfree(buf);
 	return count;
 }
 
diff --git a/drivers/acpi/hmat/hmat.c b/drivers/acpi/hmat/hmat.c
index 96b7d39a97c6..8f9a28a870b0 100644
--- a/drivers/acpi/hmat/hmat.c
+++ b/drivers/acpi/hmat/hmat.c
@@ -14,14 +14,18 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/list_sort.h>
+#include <linux/memory.h>
+#include <linux/mutex.h>
 #include <linux/node.h>
 #include <linux/sysfs.h>
 
-static __initdata u8 hmat_revision;
+static u8 hmat_revision;
 
-static __initdata LIST_HEAD(targets);
-static __initdata LIST_HEAD(initiators);
-static __initdata LIST_HEAD(localities);
+static LIST_HEAD(targets);
+static LIST_HEAD(initiators);
+static LIST_HEAD(localities);
+
+static DEFINE_MUTEX(target_lock);
 
 /*
  * The defined enum order is used to prioritize attributes to break ties when
@@ -36,11 +40,19 @@ enum locality_types {
 
 static struct memory_locality *localities_types[4];
 
+struct target_cache {
+	struct list_head node;
+	struct node_cache_attrs cache_attrs;
+};
+
 struct memory_target {
 	struct list_head node;
 	unsigned int memory_pxm;
 	unsigned int processor_pxm;
 	struct node_hmem_attrs hmem_attrs;
+	struct list_head caches;
+	struct node_cache_attrs cache_attrs;
+	bool registered;
 };
 
 struct memory_initiator {
@@ -53,7 +65,7 @@ struct memory_locality {
 	struct acpi_hmat_locality *hmat_loc;
 };
 
-static __init struct memory_initiator *find_mem_initiator(unsigned int cpu_pxm)
+static struct memory_initiator *find_mem_initiator(unsigned int cpu_pxm)
 {
 	struct memory_initiator *initiator;
 
@@ -63,7 +75,7 @@ static __init struct memory_initiator *find_mem_initiator(unsigned int cpu_pxm)
 	return NULL;
 }
 
-static __init struct memory_target *find_mem_target(unsigned int mem_pxm)
+static struct memory_target *find_mem_target(unsigned int mem_pxm)
 {
 	struct memory_target *target;
 
@@ -96,9 +108,6 @@ static __init void alloc_memory_target(unsigned int mem_pxm)
 {
 	struct memory_target *target;
 
-	if (pxm_to_node(mem_pxm) == NUMA_NO_NODE)
-		return;
-
 	target = find_mem_target(mem_pxm);
 	if (target)
 		return;
@@ -110,6 +119,7 @@ static __init void alloc_memory_target(unsigned int mem_pxm)
 	target->memory_pxm = mem_pxm;
 	target->processor_pxm = PXM_INVAL;
 	list_add_tail(&target->node, &targets);
+	INIT_LIST_HEAD(&target->caches);
 }
 
 static __init const char *hmat_data_type(u8 type)
@@ -148,7 +158,7 @@ static __init const char *hmat_data_type_suffix(u8 type)
 	}
 }
 
-static __init u32 hmat_normalize(u16 entry, u64 base, u8 type)
+static u32 hmat_normalize(u16 entry, u64 base, u8 type)
 {
 	u32 value;
 
@@ -183,7 +193,7 @@ static __init u32 hmat_normalize(u16 entry, u64 base, u8 type)
 	return value;
 }
 
-static __init void hmat_update_target_access(struct memory_target *target,
+static void hmat_update_target_access(struct memory_target *target,
 					     u8 type, u32 value)
 {
 	switch (type) {
@@ -314,7 +324,8 @@ static __init int hmat_parse_cache(union acpi_subtable_headers *header,
 				   const unsigned long end)
 {
 	struct acpi_hmat_cache *cache = (void *)header;
-	struct node_cache_attrs cache_attrs;
+	struct memory_target *target;
+	struct target_cache *tcache;
 	u32 attrs;
 
 	if (cache->header.length < sizeof(*cache)) {
@@ -328,37 +339,47 @@ static __init int hmat_parse_cache(union acpi_subtable_headers *header,
 		cache->memory_PD, cache->cache_size, attrs,
 		cache->number_of_SMBIOShandles);
 
-	cache_attrs.size = cache->cache_size;
-	cache_attrs.level = (attrs & ACPI_HMAT_CACHE_LEVEL) >> 4;
-	cache_attrs.line_size = (attrs & ACPI_HMAT_CACHE_LINE_SIZE) >> 16;
+	target = find_mem_target(cache->memory_PD);
+	if (!target)
+		return 0;
+
+	tcache = kzalloc(sizeof(*tcache), GFP_KERNEL);
+	if (!tcache) {
+		pr_notice_once("Failed to allocate HMAT cache info\n");
+		return 0;
+	}
+
+	tcache->cache_attrs.size = cache->cache_size;
+	tcache->cache_attrs.level = (attrs & ACPI_HMAT_CACHE_LEVEL) >> 4;
+	tcache->cache_attrs.line_size = (attrs & ACPI_HMAT_CACHE_LINE_SIZE) >> 16;
 
 	switch ((attrs & ACPI_HMAT_CACHE_ASSOCIATIVITY) >> 8) {
 	case ACPI_HMAT_CA_DIRECT_MAPPED:
-		cache_attrs.indexing = NODE_CACHE_DIRECT_MAP;
+		tcache->cache_attrs.indexing = NODE_CACHE_DIRECT_MAP;
 		break;
 	case ACPI_HMAT_CA_COMPLEX_CACHE_INDEXING:
-		cache_attrs.indexing = NODE_CACHE_INDEXED;
+		tcache->cache_attrs.indexing = NODE_CACHE_INDEXED;
 		break;
 	case ACPI_HMAT_CA_NONE:
 	default:
-		cache_attrs.indexing = NODE_CACHE_OTHER;
+		tcache->cache_attrs.indexing = NODE_CACHE_OTHER;
 		break;
 	}
 
 	switch ((attrs & ACPI_HMAT_WRITE_POLICY) >> 12) {
 	case ACPI_HMAT_CP_WB:
-		cache_attrs.write_policy = NODE_CACHE_WRITE_BACK;
+		tcache->cache_attrs.write_policy = NODE_CACHE_WRITE_BACK;
 		break;
 	case ACPI_HMAT_CP_WT:
-		cache_attrs.write_policy = NODE_CACHE_WRITE_THROUGH;
+		tcache->cache_attrs.write_policy = NODE_CACHE_WRITE_THROUGH;
 		break;
 	case ACPI_HMAT_CP_NONE:
 	default:
-		cache_attrs.write_policy = NODE_CACHE_WRITE_OTHER;
+		tcache->cache_attrs.write_policy = NODE_CACHE_WRITE_OTHER;
 		break;
 	}
+	list_add_tail(&tcache->node, &target->caches);
 
-	node_add_cache(pxm_to_node(cache->memory_PD), &cache_attrs);
 	return 0;
 }
 
@@ -435,7 +456,7 @@ static __init int srat_parse_mem_affinity(union acpi_subtable_headers *header,
 	return 0;
 }
 
-static __init u32 hmat_initiator_perf(struct memory_target *target,
+static u32 hmat_initiator_perf(struct memory_target *target,
 			       struct memory_initiator *initiator,
 			       struct acpi_hmat_locality *hmat_loc)
 {
@@ -473,7 +494,7 @@ static __init u32 hmat_initiator_perf(struct memory_target *target,
 			      hmat_loc->data_type);
 }
 
-static __init bool hmat_update_best(u8 type, u32 value, u32 *best)
+static bool hmat_update_best(u8 type, u32 value, u32 *best)
 {
 	bool updated = false;
 
@@ -517,7 +538,7 @@ static int initiator_cmp(void *priv, struct list_head *a, struct list_head *b)
 	return ia->processor_pxm - ib->processor_pxm;
 }
 
-static __init void hmat_register_target_initiators(struct memory_target *target)
+static void hmat_register_target_initiators(struct memory_target *target)
 {
 	static DECLARE_BITMAP(p_nodes, MAX_NUMNODES);
 	struct memory_initiator *initiator;
@@ -577,29 +598,89 @@ static __init void hmat_register_target_initiators(struct memory_target *target)
 	}
 }
 
-static __init void hmat_register_target_perf(struct memory_target *target)
+static void hmat_register_target_cache(struct memory_target *target)
+{
+	unsigned mem_nid = pxm_to_node(target->memory_pxm);
+	struct target_cache *tcache;
+
+	list_for_each_entry(tcache, &target->caches, node)
+		node_add_cache(mem_nid, &tcache->cache_attrs);
+}
+
+static void hmat_register_target_perf(struct memory_target *target)
 {
 	unsigned mem_nid = pxm_to_node(target->memory_pxm);
 	node_set_perf_attrs(mem_nid, &target->hmem_attrs, 0);
 }
 
-static __init void hmat_register_targets(void)
+static void hmat_register_target(struct memory_target *target)
 {
-	struct memory_target *target;
+	int nid = pxm_to_node(target->memory_pxm);
 
-	list_for_each_entry(target, &targets, node) {
+	/*
+	 * Skip offline nodes. This can happen when memory
+	 * marked EFI_MEMORY_SP, "specific purpose", is applied
+	 * to all the memory in a promixity domain leading to
+	 * the node being marked offline / unplugged, or if
+	 * memory-only "hotplug" node is offline.
+	 */
+	if (nid == NUMA_NO_NODE || !node_online(nid))
+		return;
+
+	mutex_lock(&target_lock);
+	if (!target->registered) {
 		hmat_register_target_initiators(target);
+		hmat_register_target_cache(target);
 		hmat_register_target_perf(target);
+		target->registered = true;
 	}
+	mutex_unlock(&target_lock);
+}
+
+static void hmat_register_targets(void)
+{
+	struct memory_target *target;
+
+	list_for_each_entry(target, &targets, node)
+		hmat_register_target(target);
+}
+
+static int hmat_callback(struct notifier_block *self,
+			 unsigned long action, void *arg)
+{
+	struct memory_target *target;
+	struct memory_notify *mnb = arg;
+	int pxm, nid = mnb->status_change_nid;
+
+	if (nid == NUMA_NO_NODE || action != MEM_ONLINE)
+		return NOTIFY_OK;
+
+	pxm = node_to_pxm(nid);
+	target = find_mem_target(pxm);
+	if (!target)
+		return NOTIFY_OK;
+
+	hmat_register_target(target);
+	return NOTIFY_OK;
 }
 
+static struct notifier_block hmat_callback_nb = {
+	.notifier_call = hmat_callback,
+	.priority = 2,
+};
+
 static __init void hmat_free_structures(void)
 {
 	struct memory_target *target, *tnext;
 	struct memory_locality *loc, *lnext;
 	struct memory_initiator *initiator, *inext;
+	struct target_cache *tcache, *cnext;
 
 	list_for_each_entry_safe(target, tnext, &targets, node) {
+		list_for_each_entry_safe(tcache, cnext, &target->caches, node) {
+			list_del(&tcache->node);
+			kfree(tcache);
+		}
 		list_del(&target->node);
 		kfree(target);
 	}
@@ -658,6 +739,10 @@ static __init int hmat_init(void)
 		}
 	}
 	hmat_register_targets();
+
+	/* Keep the table and structures if the notifier may use them */
+	if (!register_hotmemory_notifier(&hmat_callback_nb))
+		return 0;
 out_put:
 	hmat_free_structures();
 	acpi_put_table(tbl);
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index d2549ae65e1b..dea8a60e18a4 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -449,8 +449,10 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 		 * No IRQ known to the ACPI subsystem - maybe the BIOS /
 		 * driver reported one, then use it. Exit in any case.
 		 */
-		if (!acpi_pci_irq_valid(dev, pin))
+		if (!acpi_pci_irq_valid(dev, pin)) {
+			kfree(entry);
 			return 0;
+		}
 
 		if (acpi_isa_register_gsi(dev))
 			dev_warn(&dev->dev, "PCI INT %c: no GSI\n",
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index db11f7771ef1..00a6da2121be 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -661,7 +661,7 @@ int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "Link %s is referenced\n",
 			  acpi_device_bid(link->device)));
-	return (link->irq.active);
+	return link->irq.active;
 }
 
 /*
@@ -712,7 +712,7 @@ int acpi_pci_link_free_irq(acpi_handle handle)
 		acpi_evaluate_object(link->device->handle, "_DIS", NULL, NULL);
 
 	mutex_unlock(&acpi_link_lock);
-	return (link->irq.active);
+	return link->irq.active;
 }
 
 /* --------------------------------------------------------------------------
diff --git a/drivers/acpi/sbshc.h b/drivers/acpi/sbshc.h
index 06372a37df10..c3522bb82792 100644
--- a/drivers/acpi/sbshc.h
+++ b/drivers/acpi/sbshc.h
@@ -15,8 +15,6 @@ enum acpi_smb_protocol {
 	SMBUS_BLOCK_PROCESS_CALL = 0xd,
 };
 
-static const u8 SMBUS_PEC = 0x80;
-
 enum acpi_sbs_device_addr {
 	ACPI_SBS_CHARGER = 0x9,
 	ACPI_SBS_MANAGER = 0xa,
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 00f12a86ecbd..d831a61e0010 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -225,13 +225,9 @@ static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
 	if (!tz)
 		return -EINVAL;
 
-	if (!acpi_has_method(tz->device->handle, "_SCP")) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n"));
+	if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,
+						    "_SCP", mode)))
 		return -ENODEV;
-	} else if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,
-							   "_SCP", mode))) {
-		return -ENODEV;
-	}
 
 	return 0;
 }
@@ -463,8 +459,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
 			break;
 	}
 
-	if ((flag & ACPI_TRIPS_DEVICES)
-	    && acpi_has_method(tz->device->handle, "_TZD")) {
+	if (flag & ACPI_TRIPS_DEVICES) {
 		memset(&devices, 0, sizeof(devices));
 		status = acpi_evaluate_reference(tz->device->handle, "_TZD",
 						NULL, &devices);