127 files changed, 4217 insertions, 3660 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 230c53852231..94b8d820c512 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -10,9 +10,8 @@ menu "ACPI (Advanced Configuration and Power Interface) Support"
 config ACPI
         bool "ACPI Support"
         depends on IA64 || X86
+        depends on PCI
         select PM
-        select PCI
-
         default y
         ---help---
           Advanced Configuration and Power Interface (ACPI) support for 
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index d882bf87fa96..e0a95ba72371 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -74,7 +74,7 @@ struct acpi_memory_device {
         unsigned short caching; /* memory cache attribute */
         unsigned short write_protect;   /* memory read/write attribute */
         u64 start_addr;         /* Memory Range start physical addr */
-        u64 end_addr;           /* Memory Range end physical addr */
+        u64 length;             /* Memory Range length */
 };
 
 static int
@@ -97,12 +97,11 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
         if (ACPI_SUCCESS(status)) {
                 if (address64.resource_type == ACPI_MEMORY_RANGE) {
                         /* Populate the structure */
-                        mem_device->caching =
-                            address64.info.mem.caching;
+                        mem_device->caching = address64.info.mem.caching;
                         mem_device->write_protect =
                             address64.info.mem.write_protect;
                         mem_device->start_addr = address64.minimum;
-                        mem_device->end_addr = address64.maximum;
+                        mem_device->length = address64.address_length;
                 }
         }
 
@@ -199,8 +198,7 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
          * Tell the VM there is more memory here...
          * Note: Assume that this function returns zero on success
          */
-        result = add_memory(mem_device->start_addr,
-                            (mem_device->end_addr - mem_device->start_addr) + 1);
+        result = add_memory(mem_device->start_addr, mem_device->length);
         if (result) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "\nadd_memory failed\n"));
                 mem_device->state = MEMORY_INVALID_STATE;
@@ -249,7 +247,7 @@ static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
 {
         int result;
         u64 start = mem_device->start_addr;
-        u64 len = mem_device->end_addr - start + 1;
+        u64 len = mem_device->length;
 
         ACPI_FUNCTION_TRACE("acpi_memory_disable_device");
 
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index f4c87750dbf2..839f423d738d 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -817,7 +817,7 @@ typedef int (proc_writefunc) (struct file * file, const char __user * buffer,
                               unsigned long count, void *data);
 
 static int
-__init asus_proc_add(char *name, proc_writefunc * writefunc,
+asus_proc_add(char *name, proc_writefunc * writefunc,
                      proc_readfunc * readfunc, mode_t mode,
                      struct acpi_device *device)
 {
@@ -836,7 +836,7 @@ __init asus_proc_add(char *name, proc_writefunc * writefunc,
         return 0;
 }
 
-static int __init asus_hotk_add_fs(struct acpi_device *device)
+static int asus_hotk_add_fs(struct acpi_device *device)
 {
         struct proc_dir_entry *proc;
         mode_t mode;
@@ -954,7 +954,7 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
  * This function is used to initialize the hotk with right values. In this
  * method, we can make all the detection we want, and modify the hotk struct
  */
-static int __init asus_hotk_get_info(void)
+static int asus_hotk_get_info(void)
 {
         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
         struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -970,7 +970,7 @@ static int __init asus_hotk_get_info(void)
          * HID), this bit will be moved. A global variable asus_info contains
          * the DSDT header.
          */
-        status = acpi_get_table(ACPI_TABLE_DSDT, 1, &dsdt);
+        status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
         if (ACPI_FAILURE(status))
                 printk(KERN_WARNING "  Couldn't get the DSDT table header\n");
         else
@@ -1101,7 +1101,7 @@ static int __init asus_hotk_get_info(void)
         return AE_OK;
 }
 
-static int __init asus_hotk_check(void)
+static int asus_hotk_check(void)
 {
         int result = 0;
 
@@ -1119,7 +1119,9 @@ static int __init asus_hotk_check(void)
         return result;
 }
 
-static int __init asus_hotk_add(struct acpi_device *device)
+static int asus_hotk_found;
+
+static int asus_hotk_add(struct acpi_device *device)
 {
         acpi_status status = AE_OK;
         int result;
@@ -1180,6 +1182,8 @@ static int __init asus_hotk_add(struct acpi_device *device)
                 }
         }
 
+        asus_hotk_found = 1;
+
       end:
         if (result) {
                 kfree(hotk);
@@ -1226,12 +1230,24 @@ static int __init asus_acpi_init(void)
         asus_proc_dir->owner = THIS_MODULE;
 
         result = acpi_bus_register_driver(&asus_hotk_driver);
-        if (result < 1) {
-                acpi_bus_unregister_driver(&asus_hotk_driver);
+        if (result < 0) {
                 remove_proc_entry(PROC_ASUS, acpi_root_dir);
                 return -ENODEV;
         }
 
+        /*
+         * This is a bit of a kludge.  We only want this module loaded
+         * for ASUS systems, but there's currently no way to probe the
+         * ACPI namespace for ASUS HIDs.  So we just return failure if
+         * we didn't find one, which will cause the module to be
+         * unloaded.
+         */
+        if (!asus_hotk_found) {
+                acpi_bus_unregister_driver(&asus_hotk_driver);
+                remove_proc_entry(PROC_ASUS, acpi_root_dir);
+                return result;
+        }
+
         return 0;
 }
 
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 606f8733a776..dd3983cece92 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -43,7 +43,7 @@ ACPI_MODULE_NAME("acpi_bus")
 extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger);
 #endif
 
-FADT_DESCRIPTOR acpi_fadt;
+struct fadt_descriptor acpi_fadt;
 EXPORT_SYMBOL(acpi_fadt);
 
 struct acpi_device *acpi_root;
@@ -205,12 +205,14 @@ int acpi_bus_set_power(acpi_handle handle, int state)
          * Get device's current power state if it's unknown
          * This means device power state isn't initialized or previous setting failed
          */
-        if (device->power.state == ACPI_STATE_UNKNOWN)
-                acpi_bus_get_power(device->handle, &device->power.state);
-        if (state == device->power.state) {
-                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
-                                  state));
-                return_VALUE(0);
+        if (!device->flags.force_power_state) {
+                if (device->power.state == ACPI_STATE_UNKNOWN)
+                        acpi_bus_get_power(device->handle, &device->power.state);
+                if (state == device->power.state) {
+                        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
+                                          state));
+                        return_VALUE(0);
+                }
         }
         if (!device->power.states[state].flags.valid) {
                 ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Device does not support D%d\n",
@@ -596,6 +598,8 @@ void __init acpi_early_init(void)
         if (acpi_disabled)
                 return_VOID;
 
+        printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
+
         /* enable workarounds, unless strict ACPI spec. compliance */
         if (!acpi_strict)
                 acpi_gbl_enable_interpreter_slack = TRUE;
@@ -617,7 +621,7 @@ void __init acpi_early_init(void)
         /*
          * Get a separate copy of the FADT for use by other drivers.
          */
-        status = acpi_get_table(ACPI_TABLE_FADT, 1, &buffer);
+        status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &buffer);
         if (ACPI_FAILURE(status)) {
                 printk(KERN_ERR PREFIX "Unable to get the FADT\n");
                 goto error0;
@@ -743,8 +747,6 @@ static int __init acpi_init(void)
 
         ACPI_FUNCTION_TRACE("acpi_init");
 
-        printk(KERN_INFO PREFIX "Subsystem revision %08x\n", ACPI_CA_VERSION);
-
         if (acpi_disabled) {
                 printk(KERN_INFO PREFIX "Interpreter disabled.\n");
                 return_VALUE(-ENODEV);
diff --git a/drivers/acpi/dispatcher/dsfield.c b/drivers/acpi/dispatcher/dsfield.c
index 76bc0463f6de..a6d77efb41a0 100644
--- a/drivers/acpi/dispatcher/dsfield.c
+++ b/drivers/acpi/dispatcher/dsfield.c
@@ -87,7 +87,7 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op,
         union acpi_operand_object *second_desc = NULL;
         u32 flags;
 
-        ACPI_FUNCTION_TRACE("ds_create_buffer_field");
+        ACPI_FUNCTION_TRACE(ds_create_buffer_field);
 
         /* Get the name_string argument */
 
@@ -210,7 +210,7 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info,
         acpi_status status;
         acpi_integer position;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_get_field_names", info);
+        ACPI_FUNCTION_TRACE_PTR(ds_get_field_names, info);
 
         /* First field starts at bit zero */
 
@@ -342,7 +342,7 @@ acpi_ds_create_field(union acpi_parse_object *op,
         union acpi_parse_object *arg;
         struct acpi_create_field_info info;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_create_field", op);
+        ACPI_FUNCTION_TRACE_PTR(ds_create_field, op);
 
         /* First arg is the name of the parent op_region (must already exist) */
 
@@ -399,7 +399,7 @@ acpi_ds_init_field_objects(union acpi_parse_object *op,
         struct acpi_namespace_node *node;
         u8 type = 0;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_init_field_objects", op);
+        ACPI_FUNCTION_TRACE_PTR(ds_init_field_objects, op);
 
         switch (walk_state->opcode) {
         case AML_FIELD_OP:
@@ -425,6 +425,7 @@ acpi_ds_init_field_objects(union acpi_parse_object *op,
          * Walk the list of entries in the field_list
          */
         while (arg) {
+
                 /* Ignore OFFSET and ACCESSAS terms here */
 
                 if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
@@ -481,7 +482,7 @@ acpi_ds_create_bank_field(union acpi_parse_object *op,
         union acpi_parse_object *arg;
         struct acpi_create_field_info info;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_create_bank_field", op);
+        ACPI_FUNCTION_TRACE_PTR(ds_create_bank_field, op);
 
         /* First arg is the name of the parent op_region (must already exist) */
 
@@ -554,7 +555,7 @@ acpi_ds_create_index_field(union acpi_parse_object *op,
         union acpi_parse_object *arg;
         struct acpi_create_field_info info;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_create_index_field", op);
+        ACPI_FUNCTION_TRACE_PTR(ds_create_index_field, op);
 
         /* First arg is the name of the Index register (must already exist) */
 
diff --git a/drivers/acpi/dispatcher/dsinit.c b/drivers/acpi/dispatcher/dsinit.c
index e65a07ad2422..bbdf990e9f65 100644
--- a/drivers/acpi/dispatcher/dsinit.c
+++ b/drivers/acpi/dispatcher/dsinit.c
@@ -184,7 +184,7 @@ acpi_ds_init_one_object(acpi_handle obj_handle,
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Walk the namespace starting at "start_node" and perform any
+ * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any
  *              necessary initialization on the objects found therein
  *
  ******************************************************************************/
@@ -196,7 +196,7 @@ acpi_ds_initialize_objects(struct acpi_table_desc * table_desc,
         acpi_status status;
         struct acpi_init_walk_info info;
 
-        ACPI_FUNCTION_TRACE("ds_initialize_objects");
+        ACPI_FUNCTION_TRACE(ds_initialize_objects);
 
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
                           "**** Starting initialization of namespace objects ****\n"));
@@ -213,7 +213,7 @@ acpi_ds_initialize_objects(struct acpi_table_desc * table_desc,
         status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX,
                                      acpi_ds_init_one_object, &info, NULL);
         if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace"));
+                ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
         }
 
         ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index c475546535b6..bc9aca4e7401 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -81,6 +81,7 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
         /* Invoke the global exception handler */
 
         if (acpi_gbl_exception_handler) {
+
                 /* Exit the interpreter, allow handler to execute methods */
 
                 acpi_ex_exit_interpreter();
@@ -100,6 +101,7 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
         }
 #ifdef ACPI_DISASSEMBLER
         if (ACPI_FAILURE(status)) {
+
                 /* Display method locals/args if disassembler is present */
 
                 acpi_dm_dump_method_info(status, walk_state, walk_state->op);
@@ -132,7 +134,7 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node,
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_begin_method_execution", method_node);
+        ACPI_FUNCTION_TRACE_PTR(ds_begin_method_execution, method_node);
 
         if (!method_node) {
                 return_ACPI_STATUS(AE_NULL_ENTRY);
@@ -168,11 +170,14 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node,
 
                 /*
                  * Get a unit from the method semaphore. This releases the
-                 * interpreter if we block
+                 * interpreter if we block (then reacquires it)
                  */
                 status =
                     acpi_ex_system_wait_semaphore(obj_desc->method.semaphore,
                                                   ACPI_WAIT_FOREVER);
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
         }
 
         /*
@@ -183,7 +188,7 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node,
         if (!obj_desc->method.owner_id) {
                 status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
                 if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
+                        goto cleanup;
                 }
         }
 
@@ -193,6 +198,14 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node,
          */
         obj_desc->method.thread_count++;
         return_ACPI_STATUS(status);
+
+      cleanup:
+        /* On error, must signal the method semaphore if present */
+
+        if (obj_desc->method.semaphore) {
+                (void)acpi_os_signal_semaphore(obj_desc->method.semaphore, 1);
+        }
+        return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
@@ -218,10 +231,10 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
         struct acpi_namespace_node *method_node;
         struct acpi_walk_state *next_walk_state = NULL;
         union acpi_operand_object *obj_desc;
-        struct acpi_parameter_info info;
+        struct acpi_evaluate_info *info;
         u32 i;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_call_control_method", this_walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_call_control_method, this_walk_state);
 
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
                           "Execute method %p, currentstate=%p\n",
@@ -240,25 +253,31 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
                 return_ACPI_STATUS(AE_NULL_OBJECT);
         }
 
-        /* Init for new method, wait on concurrency semaphore */
+        /* Init for new method, possibly wait on concurrency semaphore */
 
         status = acpi_ds_begin_method_execution(method_node, obj_desc,
                                                 this_walk_state->method_node);
         if (ACPI_FAILURE(status)) {
-                goto cleanup;
+                return_ACPI_STATUS(status);
         }
 
+        /*
+         * 1) Parse the method. All "normal" methods are parsed for each execution.
+         * Internal methods (_OSI, etc.) do not require parsing.
+         */
         if (!(obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY)) {
-                /* 1) Parse: Create a new walk state for the preempting walk */
+
+                /* Create a new walk state for the parse */
 
                 next_walk_state =
                     acpi_ds_create_walk_state(obj_desc->method.owner_id, op,
                                               obj_desc, NULL);
                 if (!next_walk_state) {
-                        return_ACPI_STATUS(AE_NO_MEMORY);
+                        status = AE_NO_MEMORY;
+                        goto cleanup;
                 }
 
-                /* Create and init a Root Node */
+                /* Create and init a parse tree root */
 
                 op = acpi_ps_create_scope_op();
                 if (!op) {
@@ -271,17 +290,20 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
                                                obj_desc->method.aml_length,
                                                NULL, 1);
                 if (ACPI_FAILURE(status)) {
-                        acpi_ds_delete_walk_state(next_walk_state);
+                        acpi_ps_delete_parse_tree(op);
                         goto cleanup;
                 }
 
-                /* Begin AML parse */
+                /* Begin AML parse (deletes next_walk_state) */
 
                 status = acpi_ps_parse_aml(next_walk_state);
                 acpi_ps_delete_parse_tree(op);
+                if (ACPI_FAILURE(status)) {
+                        goto cleanup;
+                }
         }
 
-        /* 2) Execute: Create a new state for the preempting walk */
+        /* 2) Begin method execution. Create a new walk state */
 
         next_walk_state = acpi_ds_create_walk_state(obj_desc->method.owner_id,
                                                     NULL, obj_desc, thread);
@@ -289,6 +311,7 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
                 status = AE_NO_MEMORY;
                 goto cleanup;
         }
+
         /*
          * The resolved arguments were put on the previous walk state's operand
          * stack. Operands on the previous walk state stack always
@@ -296,12 +319,24 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
          */
         this_walk_state->operands[this_walk_state->num_operands] = NULL;
 
-        info.parameters = &this_walk_state->operands[0];
-        info.parameter_type = ACPI_PARAM_ARGS;
+        /*
+         * Allocate and initialize the evaluation information block
+         * TBD: this is somewhat inefficient, should change interface to
+         * ds_init_aml_walk. For now, keeps this struct off the CPU stack
+         */
+        info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+        if (!info) {
+                return_ACPI_STATUS(AE_NO_MEMORY);
+        }
+
+        info->parameters = &this_walk_state->operands[0];
+        info->parameter_type = ACPI_PARAM_ARGS;
 
         status = acpi_ds_init_aml_walk(next_walk_state, NULL, method_node,
                                        obj_desc->method.aml_start,
-                                       obj_desc->method.aml_length, &info, 3);
+                                       obj_desc->method.aml_length, info, 3);
+
+        ACPI_FREE(info);
         if (ACPI_FAILURE(status)) {
                 goto cleanup;
         }
@@ -323,6 +358,8 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
                           "Starting nested execution, newstate=%p\n",
                           next_walk_state));
 
+        /* Invoke an internal method if necessary */
+
         if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
                 status = obj_desc->method.implementation(next_walk_state);
         }
@@ -330,16 +367,14 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
         return_ACPI_STATUS(status);
 
       cleanup:
-        /* Decrement the thread count on the method parse tree */
 
-        if (next_walk_state && (next_walk_state->method_desc)) {
-                next_walk_state->method_desc->method.thread_count--;
-        }
+        /* On error, we must terminate the method properly */
 
-        /* On error, we must delete the new walk state */
+        acpi_ds_terminate_control_method(obj_desc, next_walk_state);
+        if (next_walk_state) {
+                acpi_ds_delete_walk_state(next_walk_state);
+        }
 
-        acpi_ds_terminate_control_method(next_walk_state);
-        acpi_ds_delete_walk_state(next_walk_state);
         return_ACPI_STATUS(status);
 }
 
@@ -362,25 +397,33 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
                                union acpi_operand_object *return_desc)
 {
         acpi_status status;
+        int same_as_implicit_return;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_restart_control_method", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_restart_control_method, walk_state);
 
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
-                          "****Restart [%4.4s] Op %p return_value_from_callee %p\n",
+                          "****Restart [%4.4s] Op %p ReturnValueFromCallee %p\n",
                           (char *)&walk_state->method_node->name,
                           walk_state->method_call_op, return_desc));
 
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
-                          "    return_from_this_method_used?=%X res_stack %p Walk %p\n",
+                          "    ReturnFromThisMethodUsed?=%X ResStack %p Walk %p\n",
                           walk_state->return_used,
                           walk_state->results, walk_state));
 
         /* Did the called method return a value? */
 
         if (return_desc) {
+
+                /* Is the implicit return object the same as the return desc? */
+
+                same_as_implicit_return =
+                    (walk_state->implicit_return_obj == return_desc);
+
                 /* Are we actually going to use the return value? */
 
                 if (walk_state->return_used) {
+
                         /* Save the return value from the previous method */
 
                         status = acpi_ds_result_push(return_desc, walk_state);
@@ -397,18 +440,23 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
                 }
 
                 /*
-                 * The following code is the
-                 * optional support for a so-called "implicit return". Some AML code
-                 * assumes that the last value of the method is "implicitly" returned
-                 * to the caller. Just save the last result as the return value.
+                 * The following code is the optional support for the so-called
+                 * "implicit return". Some AML code assumes that the last value of the
+                 * method is "implicitly" returned to the caller, in the absence of an
+                 * explicit return value.
+                 *
+                 * Just save the last result of the method as the return value.
+                 *
                  * NOTE: this is optional because the ASL language does not actually
                  * support this behavior.
                  */
                 else if (!acpi_ds_do_implicit_return
-                         (return_desc, walk_state, FALSE)) {
+                         (return_desc, walk_state, FALSE)
+                         || same_as_implicit_return) {
                         /*
                          * Delete the return value if it will not be used by the
-                         * calling method
+                         * calling method or remove one reference if the explicit return
+                         * is the same as the implicit return value.
                          */
                         acpi_ut_remove_reference(return_desc);
                 }
@@ -421,7 +469,8 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
  *
  * FUNCTION:    acpi_ds_terminate_control_method
  *
- * PARAMETERS:  walk_state          - State of the method
+ * PARAMETERS:  method_desc         - Method object
+ *              walk_state          - State associated with the method
  *
  * RETURN:      None
  *
@@ -431,95 +480,100 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
  *
  ******************************************************************************/
 
-void acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
+void
+acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
+                                 struct acpi_walk_state *walk_state)
 {
-        union acpi_operand_object *obj_desc;
         struct acpi_namespace_node *method_node;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_terminate_control_method", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_terminate_control_method, walk_state);
 
-        if (!walk_state) {
-                return_VOID;
-        }
+        /* method_desc is required, walk_state is optional */
 
-        /* The current method object was saved in the walk state */
-
-        obj_desc = walk_state->method_desc;
-        if (!obj_desc) {
+        if (!method_desc) {
                 return_VOID;
         }
 
-        /* Delete all arguments and locals */
+        if (walk_state) {
 
-        acpi_ds_method_data_delete_all(walk_state);
+                /* Delete all arguments and locals */
+
+                acpi_ds_method_data_delete_all(walk_state);
+        }
 
         /*
          * Lock the parser while we terminate this method.
          * If this is the last thread executing the method,
          * we have additional cleanup to perform
          */
-        status = acpi_ut_acquire_mutex(ACPI_MTX_PARSER);
+        status = acpi_ut_acquire_mutex(ACPI_MTX_CONTROL_METHOD);
         if (ACPI_FAILURE(status)) {
                 return_VOID;
         }
 
         /* Signal completion of the execution of this method if necessary */
 
-        if (walk_state->method_desc->method.semaphore) {
+        if (method_desc->method.semaphore) {
                 status =
-                    acpi_os_signal_semaphore(walk_state->method_desc->method.
-                                             semaphore, 1);
+                    acpi_os_signal_semaphore(method_desc->method.semaphore, 1);
                 if (ACPI_FAILURE(status)) {
-                        ACPI_ERROR((AE_INFO,
-                                    "Could not signal method semaphore"));
 
-                        /* Ignore error and continue cleanup */
+                        /* Ignore error and continue */
+
+                        ACPI_EXCEPTION((AE_INFO, status,
+                                        "Could not signal method semaphore"));
                 }
         }
 
-        /*
-         * There are no more threads executing this method.  Perform
-         * additional cleanup.
-         *
-         * The method Node is stored in the walk state
-         */
-        method_node = walk_state->method_node;
+        if (walk_state) {
+                /*
+                 * Delete any objects created by this method during execution.
+                 * The method Node is stored in the walk state
+                 */
+                method_node = walk_state->method_node;
 
-        /* Lock namespace for possible update */
+                /* Lock namespace for possible update */
 
-        status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
-        if (ACPI_FAILURE(status)) {
-                goto exit;
-        }
+                status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+                if (ACPI_FAILURE(status)) {
+                        goto exit;
+                }
 
-        /*
-         * Delete any namespace entries created immediately underneath
-         * the method
-         */
-        if (method_node->child) {
-                acpi_ns_delete_namespace_subtree(method_node);
+                /*
+                 * Delete any namespace entries created immediately underneath
+                 * the method
+                 */
+                if (method_node && method_node->child) {
+                        acpi_ns_delete_namespace_subtree(method_node);
+                }
+
+                /*
+                 * Delete any namespace entries created anywhere else within
+                 * the namespace by the execution of this method
+                 */
+                acpi_ns_delete_namespace_by_owner(method_desc->method.owner_id);
+                status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
         }
 
-        /*
-         * Delete any namespace entries created anywhere else within
-         * the namespace by the execution of this method
-         */
-        acpi_ns_delete_namespace_by_owner(walk_state->method_desc->method.
-                                          owner_id);
-        status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+        /* Decrement the thread count on the method */
+
+        if (method_desc->method.thread_count) {
+                method_desc->method.thread_count--;
+        } else {
+                ACPI_ERROR((AE_INFO, "Invalid zero thread count in method"));
+        }
 
         /* Are there any other threads currently executing this method? */
 
-        if (walk_state->method_desc->method.thread_count) {
+        if (method_desc->method.thread_count) {
                 /*
                  * Additional threads. Do not release the owner_id in this case,
                  * we immediately reuse it for the next thread executing this method
                  */
                 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
                                   "*** Completed execution of one thread, %d threads remaining\n",
-                                  walk_state->method_desc->method.
-                                  thread_count));
+                                  method_desc->method.thread_count));
         } else {
                 /* This is the only executing thread for this method */
 
@@ -533,22 +587,20 @@ void acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
                  * This code is here because we must wait until the last thread exits
                  * before creating the synchronization semaphore.
                  */
-                if ((walk_state->method_desc->method.concurrency == 1) &&
-                    (!walk_state->method_desc->method.semaphore)) {
+                if ((method_desc->method.concurrency == 1) &&
+                    (!method_desc->method.semaphore)) {
                         status = acpi_os_create_semaphore(1, 1,
-                                                          &walk_state->
-                                                          method_desc->method.
+                                                          &method_desc->method.
                                                           semaphore);
                 }
 
                 /* No more threads, we can free the owner_id */
 
-                acpi_ut_release_owner_id(&walk_state->method_desc->method.
-                                         owner_id);
+                acpi_ut_release_owner_id(&method_desc->method.owner_id);
         }
 
       exit:
-        (void)acpi_ut_release_mutex(ACPI_MTX_PARSER);
+        (void)acpi_ut_release_mutex(ACPI_MTX_CONTROL_METHOD);
         return_VOID;
 }
 
@@ -581,7 +633,7 @@ acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node)
         union acpi_parse_object *op;
         struct acpi_walk_state *walk_state;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_parse_method", node);
+        ACPI_FUNCTION_TRACE_PTR(ds_parse_method, node);
 
         /* Parameter Validation */
 
@@ -590,7 +642,7 @@ acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node)
         }
 
         ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
-                          "**** Parsing [%4.4s] **** named_obj=%p\n",
+                          "**** Parsing [%4.4s] **** NamedObj=%p\n",
                           acpi_ut_get_node_name(node), node));
 
         /* Extract the method object from the method Node */
@@ -669,7 +721,7 @@ acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node)
         }
 
         ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
-                          "**** [%4.4s] Parsed **** named_obj=%p Op=%p\n",
+                          "**** [%4.4s] Parsed **** NamedObj=%p Op=%p\n",
                           acpi_ut_get_node_name(node), node, op));
 
         /*
diff --git a/drivers/acpi/dispatcher/dsmthdat.c b/drivers/acpi/dispatcher/dsmthdat.c
index c025674f938b..459160ff9058 100644
--- a/drivers/acpi/dispatcher/dsmthdat.c
+++ b/drivers/acpi/dispatcher/dsmthdat.c
@@ -81,7 +81,7 @@ acpi_ds_method_data_get_type(u16 opcode,
  *              special data types.
  *
  * NOTES:       walk_state fields are initialized to zero by the
- *              ACPI_MEM_CALLOCATE().
+ *              ACPI_ALLOCATE_ZEROED().
  *
  *              A pseudo-Namespace Node is assigned to each argument and local
  *              so that ref_of() can return a pointer to the Node.
@@ -92,7 +92,7 @@ void acpi_ds_method_data_init(struct acpi_walk_state *walk_state)
 {
         u32 i;
 
-        ACPI_FUNCTION_TRACE("ds_method_data_init");
+        ACPI_FUNCTION_TRACE(ds_method_data_init);
 
         /* Init the method arguments */
 
@@ -100,10 +100,10 @@ void acpi_ds_method_data_init(struct acpi_walk_state *walk_state)
                 ACPI_MOVE_32_TO_32(&walk_state->arguments[i].name,
                                    NAMEOF_ARG_NTE);
                 walk_state->arguments[i].name.integer |= (i << 24);
-                walk_state->arguments[i].descriptor = ACPI_DESC_TYPE_NAMED;
+                walk_state->arguments[i].descriptor_type = ACPI_DESC_TYPE_NAMED;
                 walk_state->arguments[i].type = ACPI_TYPE_ANY;
-                walk_state->arguments[i].flags = ANOBJ_END_OF_PEER_LIST |
-                    ANOBJ_METHOD_ARG;
+                walk_state->arguments[i].flags =
+                    ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG;
         }
 
         /* Init the method locals */
@@ -113,11 +113,11 @@ void acpi_ds_method_data_init(struct acpi_walk_state *walk_state)
                                    NAMEOF_LOCAL_NTE);
 
                 walk_state->local_variables[i].name.integer |= (i << 24);
-                walk_state->local_variables[i].descriptor =
+                walk_state->local_variables[i].descriptor_type =
                     ACPI_DESC_TYPE_NAMED;
                 walk_state->local_variables[i].type = ACPI_TYPE_ANY;
-                walk_state->local_variables[i].flags = ANOBJ_END_OF_PEER_LIST |
-                    ANOBJ_METHOD_LOCAL;
+                walk_state->local_variables[i].flags =
+                    ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL;
         }
 
         return_VOID;
@@ -140,7 +140,7 @@ void acpi_ds_method_data_delete_all(struct acpi_walk_state *walk_state)
 {
         u32 index;
 
-        ACPI_FUNCTION_TRACE("ds_method_data_delete_all");
+        ACPI_FUNCTION_TRACE(ds_method_data_delete_all);
 
         /* Detach the locals */
 
@@ -199,7 +199,7 @@ acpi_ds_method_data_init_args(union acpi_operand_object **params,
         acpi_status status;
         u32 index = 0;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_method_data_init_args", params);
+        ACPI_FUNCTION_TRACE_PTR(ds_method_data_init_args, params);
 
         if (!params) {
                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
@@ -251,7 +251,7 @@ acpi_ds_method_data_get_node(u16 opcode,
                              struct acpi_walk_state *walk_state,
                              struct acpi_namespace_node **node)
 {
-        ACPI_FUNCTION_TRACE("ds_method_data_get_node");
+        ACPI_FUNCTION_TRACE(ds_method_data_get_node);
 
         /*
          * Method Locals and Arguments are supported
@@ -318,10 +318,10 @@ acpi_ds_method_data_set_value(u16 opcode,
         acpi_status status;
         struct acpi_namespace_node *node;
 
-        ACPI_FUNCTION_TRACE("ds_method_data_set_value");
+        ACPI_FUNCTION_TRACE(ds_method_data_set_value);
 
         ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                          "new_obj %p Opcode %X, Refs=%d [%s]\n", object,
+                          "NewObj %p Opcode %X, Refs=%d [%s]\n", object,
                           opcode, object->common.reference_count,
                           acpi_ut_get_type_name(object->common.type)));
 
@@ -336,7 +336,7 @@ acpi_ds_method_data_set_value(u16 opcode,
          * Increment ref count so object can't be deleted while installed.
          * NOTE: We do not copy the object in order to preserve the call by
          * reference semantics of ACPI Control Method invocation.
-         * (See ACPI specification 2.0_c)
+         * (See ACPI Specification 2.0_c)
          */
         acpi_ut_add_reference(object);
 
@@ -351,7 +351,7 @@ acpi_ds_method_data_set_value(u16 opcode,
  * FUNCTION:    acpi_ds_method_data_get_value
  *
  * PARAMETERS:  Opcode              - Either AML_LOCAL_OP or AML_ARG_OP
- *              Index               - which local_var or argument to get
+ *              Index               - Which local_var or argument to get
  *              walk_state          - Current walk state object
  *              dest_desc           - Where Arg or Local value is returned
  *
@@ -372,7 +372,7 @@ acpi_ds_method_data_get_value(u16 opcode,
         struct acpi_namespace_node *node;
         union acpi_operand_object *object;
 
-        ACPI_FUNCTION_TRACE("ds_method_data_get_value");
+        ACPI_FUNCTION_TRACE(ds_method_data_get_value);
 
         /* Validate the object descriptor */
 
@@ -459,7 +459,7 @@ acpi_ds_method_data_get_value(u16 opcode,
  * FUNCTION:    acpi_ds_method_data_delete_value
  *
  * PARAMETERS:  Opcode              - Either AML_LOCAL_OP or AML_ARG_OP
- *              Index               - which local_var or argument to delete
+ *              Index               - Which local_var or argument to delete
  *              walk_state          - Current walk state object
  *
  * RETURN:      None
@@ -477,7 +477,7 @@ acpi_ds_method_data_delete_value(u16 opcode,
         struct acpi_namespace_node *node;
         union acpi_operand_object *object;
 
-        ACPI_FUNCTION_TRACE("ds_method_data_delete_value");
+        ACPI_FUNCTION_TRACE(ds_method_data_delete_value);
 
         /* Get the namespace node for the arg/local */
 
@@ -538,7 +538,7 @@ acpi_ds_store_object_to_local(u16 opcode,
         union acpi_operand_object *current_obj_desc;
         union acpi_operand_object *new_obj_desc;
 
-        ACPI_FUNCTION_TRACE("ds_store_object_to_local");
+        ACPI_FUNCTION_TRACE(ds_store_object_to_local);
         ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Opcode=%X Index=%d Obj=%p\n",
                           opcode, index, obj_desc));
 
@@ -614,7 +614,7 @@ acpi_ds_store_object_to_local(u16 opcode,
                             && (current_obj_desc->reference.opcode ==
                                 AML_REF_OF_OP)) {
                                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                                  "Arg (%p) is an obj_ref(Node), storing in node %p\n",
+                                                  "Arg (%p) is an ObjRef(Node), storing in node %p\n",
                                                   new_obj_desc,
                                                   current_obj_desc));
 
@@ -688,7 +688,7 @@ acpi_ds_method_data_get_type(u16 opcode,
         struct acpi_namespace_node *node;
         union acpi_operand_object *object;
 
-        ACPI_FUNCTION_TRACE("ds_method_data_get_type");
+        ACPI_FUNCTION_TRACE(ds_method_data_get_type);
 
         /* Get the namespace node for the arg/local */
 
@@ -701,6 +701,7 @@ acpi_ds_method_data_get_type(u16 opcode,
 
         object = acpi_ns_get_attached_object(node);
         if (!object) {
+
                 /* Uninitialized local/arg, return TYPE_ANY */
 
                 return_VALUE(ACPI_TYPE_ANY);
diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c
index 8b21f0f9e517..72190abb1d59 100644
--- a/drivers/acpi/dispatcher/dsobject.c
+++ b/drivers/acpi/dispatcher/dsobject.c
@@ -81,7 +81,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ds_build_internal_object");
+        ACPI_FUNCTION_TRACE(ds_build_internal_object);
 
         *obj_desc_ptr = NULL;
         if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
@@ -103,6 +103,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
                                                                          common.
                                                                          node)));
                         if (ACPI_FAILURE(status)) {
+
                                 /* Check if we are resolving a named reference within a package */
 
                                 if ((status == AE_NOT_FOUND)
@@ -186,7 +187,7 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
         union acpi_parse_object *byte_list;
         u32 byte_list_length = 0;
 
-        ACPI_FUNCTION_TRACE("ds_build_internal_buffer_obj");
+        ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj);
 
         /*
          * If we are evaluating a Named buffer object "Name (xxxx, Buffer)".
@@ -195,6 +196,7 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
          */
         obj_desc = *obj_desc_ptr;
         if (!obj_desc) {
+
                 /* Create a new buffer object */
 
                 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
@@ -243,7 +245,7 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
                                   "Buffer defined with zero length in AML, creating\n"));
         } else {
                 obj_desc->buffer.pointer =
-                    ACPI_MEM_CALLOCATE(obj_desc->buffer.length);
+                    ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length);
                 if (!obj_desc->buffer.pointer) {
                         acpi_ut_delete_object_desc(obj_desc);
                         return_ACPI_STATUS(AE_NO_MEMORY);
@@ -291,7 +293,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
         acpi_status status = AE_OK;
         acpi_native_uint i;
 
-        ACPI_FUNCTION_TRACE("ds_build_internal_package_obj");
+        ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
 
         /* Find the parent of a possibly nested package */
 
@@ -339,9 +341,10 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
          * individual objects). Add an extra pointer slot so
          * that the list is always null terminated.
          */
-        obj_desc->package.elements = ACPI_MEM_CALLOCATE(((acpi_size) obj_desc->
-                                                         package.count +
-                                                         1) * sizeof(void *));
+        obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
+                                                           obj_desc->package.
+                                                           count +
+                                                           1) * sizeof(void *));
 
         if (!obj_desc->package.elements) {
                 acpi_ut_delete_object_desc(obj_desc);
@@ -355,6 +358,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
         arg = arg->common.next;
         for (i = 0; arg; i++) {
                 if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
+
                         /* Object (package or buffer) is already built */
 
                         obj_desc->package.elements[i] =
@@ -396,7 +400,7 @@ acpi_ds_create_node(struct acpi_walk_state *walk_state,
         acpi_status status;
         union acpi_operand_object *obj_desc;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_create_node", op);
+        ACPI_FUNCTION_TRACE_PTR(ds_create_node, op);
 
         /*
          * Because of the execution pass through the non-control-method
@@ -408,6 +412,7 @@ acpi_ds_create_node(struct acpi_walk_state *walk_state,
         }
 
         if (!op->common.value.arg) {
+
                 /* No arguments, there is nothing to do */
 
                 return_ACPI_STATUS(AE_OK);
@@ -464,11 +469,12 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
         union acpi_operand_object *obj_desc;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ds_init_object_from_op");
+        ACPI_FUNCTION_TRACE(ds_init_object_from_op);
 
         obj_desc = *ret_obj_desc;
         op_info = acpi_ps_get_opcode_info(opcode);
         if (op_info->class == AML_CLASS_UNKNOWN) {
+
                 /* Unknown opcode */
 
                 return_ACPI_STATUS(AE_TYPE);
@@ -626,6 +632,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
                 default:        /* Other literals, etc.. */
 
                         if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
+
                                 /* Node was saved in Op */
 
                                 obj_desc->reference.node = op->common.node;
diff --git a/drivers/acpi/dispatcher/dsopcode.c b/drivers/acpi/dispatcher/dsopcode.c
index 6229c10674e1..5b974a8fe614 100644
--- a/drivers/acpi/dispatcher/dsopcode.c
+++ b/drivers/acpi/dispatcher/dsopcode.c
@@ -91,7 +91,7 @@ acpi_ds_execute_arguments(struct acpi_namespace_node *node,
         union acpi_parse_object *op;
         struct acpi_walk_state *walk_state;
 
-        ACPI_FUNCTION_TRACE("ds_execute_arguments");
+        ACPI_FUNCTION_TRACE(ds_execute_arguments);
 
         /*
          * Allocate a new parser op to be the root of the parsed tree
@@ -193,7 +193,7 @@ acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc)
         struct acpi_namespace_node *node;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_get_buffer_field_arguments", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_field_arguments, obj_desc);
 
         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
                 return_ACPI_STATUS(AE_OK);
@@ -206,7 +206,7 @@ acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc)
 
         ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
                         (ACPI_TYPE_BUFFER_FIELD, node, NULL));
-        ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] buffer_field Arg Init\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
                           acpi_ut_get_node_name(node)));
 
         /* Execute the AML code for the term_arg arguments */
@@ -235,7 +235,7 @@ acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc)
         struct acpi_namespace_node *node;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_get_buffer_arguments", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_arguments, obj_desc);
 
         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
                 return_ACPI_STATUS(AE_OK);
@@ -279,7 +279,7 @@ acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc)
         struct acpi_namespace_node *node;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_get_package_arguments", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ds_get_package_arguments, obj_desc);
 
         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
                 return_ACPI_STATUS(AE_OK);
@@ -324,7 +324,7 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
         acpi_status status;
         union acpi_operand_object *extra_desc;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_get_region_arguments", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ds_get_region_arguments, obj_desc);
 
         if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
                 return_ACPI_STATUS(AE_OK);
@@ -342,8 +342,7 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
         ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
                         (ACPI_TYPE_REGION, node, NULL));
 
-        ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                          "[%4.4s] op_region Arg Init at AML %p\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
                           acpi_ut_get_node_name(node),
                           extra_desc->extra.aml_start));
 
@@ -352,6 +351,28 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
         status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node),
                                            extra_desc->extra.aml_length,
                                            extra_desc->extra.aml_start);
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
+        }
+
+        /* Validate the region address/length via the host OS */
+
+        status = acpi_os_validate_address(obj_desc->region.space_id,
+                                          obj_desc->region.address,
+                                          (acpi_size) obj_desc->region.length);
+        if (ACPI_FAILURE(status)) {
+                /*
+                 * Invalid address/length. We will emit an error message and mark
+                 * the region as invalid, so that it will cause an additional error if
+                 * it is ever used. Then return AE_OK.
+                 */
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "During address validation of OpRegion [%4.4s]",
+                                node->name.ascii));
+                obj_desc->common.flags |= AOPOBJ_INVALID;
+                status = AE_OK;
+        }
+
         return_ACPI_STATUS(status);
 }
 
@@ -411,7 +432,7 @@ acpi_ds_init_buffer_field(u16 aml_opcode,
         u8 field_flags;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_init_buffer_field", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ds_init_buffer_field, obj_desc);
 
         /* Host object must be a Buffer */
 
@@ -457,7 +478,7 @@ acpi_ds_init_buffer_field(u16 aml_opcode,
 
                 if (bit_count == 0) {
                         ACPI_ERROR((AE_INFO,
-                                    "Attempt to create_field of length zero"));
+                                    "Attempt to CreateField of length zero"));
                         status = AE_AML_OPERAND_VALUE;
                         goto cleanup;
                 }
@@ -595,7 +616,7 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
         struct acpi_namespace_node *node;
         union acpi_parse_object *next_op;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_eval_buffer_field_operands", op);
+        ACPI_FUNCTION_TRACE_PTR(ds_eval_buffer_field_operands, op);
 
         /*
          * This is where we evaluate the address and length fields of the
@@ -627,7 +648,7 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
         ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE,
                            acpi_ps_get_opcode_name(op->common.aml_opcode),
                            walk_state->num_operands,
-                           "after acpi_ex_resolve_operands");
+                           "after AcpiExResolveOperands");
 
         if (ACPI_FAILURE(status)) {
                 ACPI_ERROR((AE_INFO, "(%s) bad operand(s) (%X)",
@@ -640,6 +661,7 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
         /* Initialize the Buffer Field */
 
         if (op->common.aml_opcode == AML_CREATE_FIELD_OP) {
+
                 /* NOTE: Slightly different operands for this opcode */
 
                 status =
@@ -685,7 +707,7 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
         struct acpi_namespace_node *node;
         union acpi_parse_object *next_op;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_eval_region_operands", op);
+        ACPI_FUNCTION_TRACE_PTR(ds_eval_region_operands, op);
 
         /*
          * This is where we evaluate the address and length fields of the
@@ -718,7 +740,7 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
 
         ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE,
                            acpi_ps_get_opcode_name(op->common.aml_opcode),
-                           1, "after acpi_ex_resolve_operands");
+                           1, "after AcpiExResolveOperands");
 
         obj_desc = acpi_ns_get_attached_object(node);
         if (!obj_desc) {
@@ -744,7 +766,7 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
             operand_desc->integer.value;
         acpi_ut_remove_reference(operand_desc);
 
-        ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "rgn_obj %p Addr %8.8X%8.8X Len %X\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
                           obj_desc,
                           ACPI_FORMAT_UINT64(obj_desc->region.address),
                           obj_desc->region.length));
@@ -780,7 +802,7 @@ acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
         union acpi_operand_object *arg_desc;
         u32 length;
 
-        ACPI_FUNCTION_TRACE("ds_eval_data_object_operands");
+        ACPI_FUNCTION_TRACE(ds_eval_data_object_operands);
 
         /* The first operand (for all of these data objects) is the length */
 
@@ -874,7 +896,7 @@ acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state,
         acpi_status status = AE_OK;
         union acpi_generic_state *control_state;
 
-        ACPI_FUNCTION_NAME("ds_exec_begin_control_op");
+        ACPI_FUNCTION_NAME(ds_exec_begin_control_op);
 
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", op,
                           op->common.aml_opcode, walk_state));
@@ -952,7 +974,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
         acpi_status status = AE_OK;
         union acpi_generic_state *control_state;
 
-        ACPI_FUNCTION_NAME("ds_exec_end_control_op");
+        ACPI_FUNCTION_NAME(ds_exec_end_control_op);
 
         switch (op->common.aml_opcode) {
         case AML_IF_OP:
@@ -984,6 +1006,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
                 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", op));
 
                 if (walk_state->control_state->common.value) {
+
                         /* Predicate was true, go back and evaluate it again! */
 
                         status = AE_CTRL_PENDING;
@@ -1014,6 +1037,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
                  * has been bubbled up the tree
                  */
                 if (op->common.value.arg) {
+
                         /* Since we have a real Return(), delete any implicit return */
 
                         acpi_ds_clear_implicit_return(walk_state);
@@ -1047,6 +1071,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
                         walk_state->return_desc = walk_state->operands[0];
                 } else if ((walk_state->results) &&
                            (walk_state->results->results.num_results > 0)) {
+
                         /* Since we have a real Return(), delete any implicit return */
 
                         acpi_ds_clear_implicit_return(walk_state);
@@ -1095,7 +1120,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
                 }
 
                 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
-                                  "Completed RETURN_OP State=%p, ret_val=%p\n",
+                                  "Completed RETURN_OP State=%p, RetVal=%p\n",
                                   walk_state, walk_state->return_desc));
 
                 /* End the control method execution right now */
diff --git a/drivers/acpi/dispatcher/dsutils.c b/drivers/acpi/dispatcher/dsutils.c
index 53356a591ac1..05230baf5de8 100644
--- a/drivers/acpi/dispatcher/dsutils.c
+++ b/drivers/acpi/dispatcher/dsutils.c
@@ -68,7 +68,7 @@ ACPI_MODULE_NAME("dsutils")
  ******************************************************************************/
 void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state)
 {
-        ACPI_FUNCTION_NAME("ds_clear_implicit_return");
+        ACPI_FUNCTION_NAME(ds_clear_implicit_return);
 
         /*
          * Slack must be enabled for this feature
@@ -115,7 +115,7 @@ u8
 acpi_ds_do_implicit_return(union acpi_operand_object *return_desc,
                            struct acpi_walk_state *walk_state, u8 add_reference)
 {
-        ACPI_FUNCTION_NAME("ds_do_implicit_return");
+        ACPI_FUNCTION_NAME(ds_do_implicit_return);
 
         /*
          * Slack must be enabled for this feature, and we must
@@ -171,7 +171,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 {
         const struct acpi_opcode_info *parent_info;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_is_result_used", op);
+        ACPI_FUNCTION_TRACE_PTR(ds_is_result_used, op);
 
         /* Must have both an Op and a Result Object */
 
@@ -202,6 +202,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
          */
         if ((!op->common.parent) ||
             (op->common.parent->common.aml_opcode == AML_SCOPE_OP)) {
+
                 /* No parent, the return value cannot possibly be used */
 
                 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
@@ -340,7 +341,7 @@ acpi_ds_delete_result_if_not_used(union acpi_parse_object *op,
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_delete_result_if_not_used", result_obj);
+        ACPI_FUNCTION_TRACE_PTR(ds_delete_result_if_not_used, result_obj);
 
         if (!op) {
                 ACPI_ERROR((AE_INFO, "Null Op"));
@@ -352,6 +353,7 @@ acpi_ds_delete_result_if_not_used(union acpi_parse_object *op,
         }
 
         if (!acpi_ds_is_result_used(op, walk_state)) {
+
                 /* Must pop the result stack (obj_desc should be equal to result_obj) */
 
                 status = acpi_ds_result_pop(&obj_desc, walk_state);
@@ -382,7 +384,7 @@ acpi_status acpi_ds_resolve_operands(struct acpi_walk_state *walk_state)
         u32 i;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_resolve_operands", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_resolve_operands, walk_state);
 
         /*
          * Attempt to resolve each of the valid operands
@@ -417,7 +419,7 @@ void acpi_ds_clear_operands(struct acpi_walk_state *walk_state)
 {
         u32 i;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_clear_operands", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_clear_operands, walk_state);
 
         /* Remove a reference on each operand on the stack */
 
@@ -465,7 +467,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
         acpi_interpreter_mode interpreter_mode;
         const struct acpi_opcode_info *op_info;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_create_operand", arg);
+        ACPI_FUNCTION_TRACE_PTR(ds_create_operand, arg);
 
         /* A valid name must be looked up in the namespace */
 
@@ -498,7 +500,9 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
                  */
                 if ((walk_state->deferred_node) &&
                     (walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD)
-                    && (arg_index != 0)) {
+                    && (arg_index ==
+                        (u32) ((walk_state->opcode ==
+                                AML_CREATE_FIELD_OP) ? 3 : 2))) {
                         obj_desc =
                             ACPI_CAST_PTR(union acpi_operand_object,
                                           walk_state->deferred_node);
@@ -521,6 +525,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
                             && (parent_op->common.aml_opcode != AML_REGION_OP)
                             && (parent_op->common.aml_opcode !=
                                 AML_INT_NAMEPATH_OP)) {
+
                                 /* Enter name into namespace if not found */
 
                                 interpreter_mode = ACPI_IMODE_LOAD_PASS2;
@@ -572,7 +577,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 
                 /* Free the namestring created above */
 
-                ACPI_MEM_FREE(name_string);
+                ACPI_FREE(name_string);
 
                 /* Check status from the lookup */
 
@@ -696,7 +701,7 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state,
         union acpi_parse_object *arg;
         u32 arg_count = 0;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_create_operands", first_arg);
+        ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg);
 
         /* For all arguments in the list... */
 
diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c
index f1af655ff113..3acbd9145d72 100644
--- a/drivers/acpi/dispatcher/dswexec.c
+++ b/drivers/acpi/dispatcher/dswexec.c
@@ -49,7 +49,6 @@
 #include <acpi/acinterp.h>
 #include <acpi/acnamesp.h>
 #include <acpi/acdebug.h>
-#include <acpi/acdisasm.h>
 
 #define _COMPONENT          ACPI_DISPATCHER
 ACPI_MODULE_NAME("dswexec")
@@ -93,7 +92,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
         union acpi_operand_object *obj_desc;
         union acpi_operand_object *local_obj_desc = NULL;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_get_predicate_value", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state);
 
         walk_state->control_state->common.state = 0;
 
@@ -123,7 +122,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
 
         if (!obj_desc) {
                 ACPI_ERROR((AE_INFO,
-                            "No predicate obj_desc=%p State=%p",
+                            "No predicate ObjDesc=%p State=%p",
                             obj_desc, walk_state));
 
                 return_ACPI_STATUS(AE_AML_NO_OPERAND);
@@ -140,7 +139,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
 
         if (ACPI_GET_OBJECT_TYPE(local_obj_desc) != ACPI_TYPE_INTEGER) {
                 ACPI_ERROR((AE_INFO,
-                            "Bad predicate (not an integer) obj_desc=%p State=%p Type=%X",
+                            "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X",
                             obj_desc, walk_state,
                             ACPI_GET_OBJECT_TYPE(obj_desc)));
 
@@ -214,7 +213,7 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
         acpi_status status = AE_OK;
         u32 opcode_class;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_exec_begin_op", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_exec_begin_op, walk_state);
 
         op = walk_state->op;
         if (!op) {
@@ -296,7 +295,7 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
 
         case AML_CLASS_NAMED_OBJECT:
 
-                if (walk_state->walk_type == ACPI_WALK_METHOD) {
+                if (walk_state->walk_type & ACPI_WALK_METHOD) {
                         /*
                          * Found a named object declaration during method execution;
                          * we must enter this object into the namespace.  The created
@@ -354,7 +353,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
         union acpi_parse_object *next_op;
         union acpi_parse_object *first_arg;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_exec_end_op", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state);
 
         op = walk_state->op;
         op_type = walk_state->op_info->type;
@@ -409,6 +408,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
                  * being the object_type and size_of operators.
                  */
                 if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) {
+
                         /* Resolve all operands */
 
                         status = acpi_ex_resolve_operands(walk_state->opcode,
@@ -423,7 +423,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
                                                    acpi_ps_get_opcode_name
                                                    (walk_state->opcode),
                                                    walk_state->num_operands,
-                                                   "after ex_resolve_operands");
+                                                   "after ExResolveOperands");
                         }
                 }
 
@@ -437,7 +437,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
                             acpi_gbl_op_type_dispatch[op_type] (walk_state);
                 } else {
                         /*
-                         * Treat constructs of the form "Store(local_x,local_x)" as noops when the
+                         * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the
                          * Local is uninitialized.
                          */
                         if ((status == AE_AML_UNINITIALIZED_LOCAL) &&
@@ -548,6 +548,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
                          */
                         status = acpi_ds_resolve_operands(walk_state);
                         if (ACPI_FAILURE(status)) {
+
                                 /* On error, clear all resolved operands */
 
                                 acpi_ds_clear_operands(walk_state);
@@ -569,7 +570,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
                 case AML_TYPE_CREATE_FIELD:
 
                         ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                          "Executing create_field Buffer/Index Op=%p\n",
+                                          "Executing CreateField Buffer/Index Op=%p\n",
                                           op));
 
                         status = acpi_ds_load2_end_op(walk_state);
@@ -584,7 +585,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
                 case AML_TYPE_CREATE_OBJECT:
 
                         ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                          "Executing create_object (Buffer/Package) Op=%p\n",
+                                          "Executing CreateObject (Buffer/Package) Op=%p\n",
                                           op));
 
                         switch (op->common.parent->common.aml_opcode) {
@@ -657,7 +658,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 
                         if (op->common.aml_opcode == AML_REGION_OP) {
                                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                                  "Executing op_region Address/Length Op=%p\n",
+                                                  "Executing OpRegion Address/Length Op=%p\n",
                                                   op));
 
                                 status =
@@ -722,6 +723,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
       cleanup:
 
         if (walk_state->result_obj) {
+
                 /* Break to debugger to display result */
 
                 ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c
index d3d24da31c81..35074399c617 100644
--- a/drivers/acpi/dispatcher/dswload.c
+++ b/drivers/acpi/dispatcher/dswload.c
@@ -127,7 +127,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
         char *path;
         u32 flags;
 
-        ACPI_FUNCTION_TRACE("ds_load1_begin_op");
+        ACPI_FUNCTION_TRACE(ds_load1_begin_op);
 
         op = walk_state->op;
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
@@ -178,12 +178,12 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
                          * Target of Scope() not found.  Generate an External for it, and
                          * insert the name into the namespace.
                          */
-                        acpi_dm_add_to_external_list(path);
+                        acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0);
                         status =
                             acpi_ns_lookup(walk_state->scope_info, path,
                                            object_type, ACPI_IMODE_LOAD_PASS1,
                                            ACPI_NS_SEARCH_PARENT, walk_state,
-                                           &(node));
+                                           &node);
                 }
 #endif
                 if (ACPI_FAILURE(status)) {
@@ -261,6 +261,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
                  */
 
                 if (walk_state->deferred_node) {
+
                         /* This name is already in the namespace, get the node */
 
                         node = walk_state->deferred_node;
@@ -300,10 +301,41 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
                 status =
                     acpi_ns_lookup(walk_state->scope_info, path, object_type,
                                    ACPI_IMODE_LOAD_PASS1, flags, walk_state,
-                                   &(node));
+                                   &node);
                 if (ACPI_FAILURE(status)) {
-                        ACPI_ERROR_NAMESPACE(path, status);
-                        return_ACPI_STATUS(status);
+                        if (status == AE_ALREADY_EXISTS) {
+
+                                /* The name already exists in this scope */
+
+                                if (node->flags & ANOBJ_IS_EXTERNAL) {
+                                        /*
+                                         * Allow one create on an object or segment that was
+                                         * previously declared External
+                                         */
+                                        node->flags &= ~ANOBJ_IS_EXTERNAL;
+                                        node->type = (u8) object_type;
+
+                                        /* Just retyped a node, probably will need to open a scope */
+
+                                        if (acpi_ns_opens_scope(object_type)) {
+                                                status =
+                                                    acpi_ds_scope_stack_push
+                                                    (node, object_type,
+                                                     walk_state);
+                                                if (ACPI_FAILURE(status)) {
+                                                        return_ACPI_STATUS
+                                                            (status);
+                                                }
+                                        }
+                                        status = AE_OK;
+                                }
+                        }
+
+                        if (ACPI_FAILURE(status)) {
+
+                                ACPI_ERROR_NAMESPACE(path, status);
+                                return_ACPI_STATUS(status);
+                        }
                 }
                 break;
         }
@@ -311,6 +343,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
         /* Common exit */
 
         if (!op) {
+
                 /* Create a new op */
 
                 op = acpi_ps_alloc_op(walk_state->opcode);
@@ -359,7 +392,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
         acpi_object_type object_type;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ds_load1_end_op");
+        ACPI_FUNCTION_TRACE(ds_load1_end_op);
 
         op = walk_state->op;
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
@@ -413,6 +446,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
 #endif
 
         if (op->common.aml_opcode == AML_NAME_OP) {
+
                 /* For Name opcode, get the object type from the argument */
 
                 if (op->common.value.arg) {
@@ -445,7 +479,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
                          * arguments.)
                          */
                         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
-                                          "LOADING-Method: State=%p Op=%p named_obj=%p\n",
+                                          "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
                                           walk_state, op, op->named.node));
 
                         if (!acpi_ns_get_attached_object(op->named.node)) {
@@ -511,7 +545,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
         acpi_object_type object_type;
         char *buffer_ptr;
 
-        ACPI_FUNCTION_TRACE("ds_load2_begin_op");
+        ACPI_FUNCTION_TRACE(ds_load2_begin_op);
 
         op = walk_state->op;
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
@@ -521,6 +555,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
                 if ((walk_state->control_state) &&
                     (walk_state->control_state->common.state ==
                      ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
+
                         /* We are executing a while loop outside of a method */
 
                         status = acpi_ds_exec_begin_op(walk_state, out_op);
@@ -554,10 +589,12 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
                 /* Get the name we are going to enter or lookup in the namespace */
 
                 if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
+
                         /* For Namepath op, get the path string */
 
                         buffer_ptr = op->common.value.string;
                         if (!buffer_ptr) {
+
                                 /* No name, just exit */
 
                                 return_ACPI_STATUS(AE_OK);
@@ -680,6 +717,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
                 /* All other opcodes */
 
                 if (op && op->common.node) {
+
                         /* This op/node was previously entered into the namespace */
 
                         node = op->common.node;
@@ -705,6 +743,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
                  * Note: Name may already exist if we are executing a deferred opcode.
                  */
                 if (walk_state->deferred_node) {
+
                         /* This name is already in the namespace, get the node */
 
                         node = walk_state->deferred_node;
@@ -727,6 +766,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
         }
 
         if (!op) {
+
                 /* Create a new op */
 
                 op = acpi_ps_alloc_op(walk_state->opcode);
@@ -776,7 +816,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
         u32 i;
 #endif
 
-        ACPI_FUNCTION_TRACE("ds_load2_end_op");
+        ACPI_FUNCTION_TRACE(ds_load2_end_op);
 
         op = walk_state->op;
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
@@ -870,7 +910,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
          */
 
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
-                          "Create-Load [%s] State=%p Op=%p named_obj=%p\n",
+                          "Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
                           acpi_ps_get_opcode_name(op->common.aml_opcode),
                           walk_state, op, node));
 
@@ -1045,7 +1085,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
                          * arguments.)
                          */
                         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
-                                          "LOADING-Method: State=%p Op=%p named_obj=%p\n",
+                                          "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
                                           walk_state, op, op->named.node));
 
                         if (!acpi_ns_get_attached_object(op->named.node)) {
@@ -1090,7 +1130,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
         case AML_CLASS_METHOD_CALL:
 
                 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
-                                  "RESOLVING-method_call: State=%p Op=%p named_obj=%p\n",
+                                  "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
                                   walk_state, op, node));
 
                 /*
@@ -1104,7 +1144,6 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
                                    ACPI_NS_DONT_OPEN_SCOPE, walk_state,
                                    &(new_node));
                 if (ACPI_SUCCESS(status)) {
-
                         /*
                          * Make sure that what we found is indeed a method
                          * We didn't search for a method on purpose, to see if the name
diff --git a/drivers/acpi/dispatcher/dswscope.c b/drivers/acpi/dispatcher/dswscope.c
index ada21ef4a174..c9228972f5f6 100644
--- a/drivers/acpi/dispatcher/dswscope.c
+++ b/drivers/acpi/dispatcher/dswscope.c
@@ -63,9 +63,10 @@ void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state)
 {
         union acpi_generic_state *scope_info;
 
-        ACPI_FUNCTION_NAME("ds_scope_stack_clear");
+        ACPI_FUNCTION_NAME(ds_scope_stack_clear);
 
         while (walk_state->scope_info) {
+
                 /* Pop a scope off the stack */
 
                 scope_info = walk_state->scope_info;
@@ -102,9 +103,10 @@ acpi_ds_scope_stack_push(struct acpi_namespace_node *node,
         union acpi_generic_state *scope_info;
         union acpi_generic_state *old_scope_info;
 
-        ACPI_FUNCTION_TRACE("ds_scope_stack_push");
+        ACPI_FUNCTION_TRACE(ds_scope_stack_push);
 
         if (!node) {
+
                 /* Invalid scope   */
 
                 ACPI_ERROR((AE_INFO, "Null scope parameter"));
@@ -126,7 +128,7 @@ acpi_ds_scope_stack_push(struct acpi_namespace_node *node,
 
         /* Init new scope object */
 
-        scope_info->common.data_type = ACPI_DESC_TYPE_STATE_WSCOPE;
+        scope_info->common.descriptor_type = ACPI_DESC_TYPE_STATE_WSCOPE;
         scope_info->scope.node = node;
         scope_info->common.value = (u16) type;
 
@@ -176,7 +178,7 @@ acpi_status acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state)
         union acpi_generic_state *scope_info;
         union acpi_generic_state *new_scope_info;
 
-        ACPI_FUNCTION_TRACE("ds_scope_stack_pop");
+        ACPI_FUNCTION_TRACE(ds_scope_stack_pop);
 
         /*
          * Pop scope info object off the stack.
diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c
index fa78cb74ee36..7817e5522679 100644
--- a/drivers/acpi/dispatcher/dswstate.c
+++ b/drivers/acpi/dispatcher/dswstate.c
@@ -66,7 +66,6 @@ void *acpi_ds_obj_stack_get_value(u32 index,
 #endif
 
 #ifdef ACPI_FUTURE_USAGE
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ds_result_remove
@@ -88,7 +87,7 @@ acpi_ds_result_remove(union acpi_operand_object **object,
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_NAME("ds_result_remove");
+        ACPI_FUNCTION_NAME(ds_result_remove);
 
         state = walk_state->results;
         if (!state) {
@@ -128,7 +127,6 @@ acpi_ds_result_remove(union acpi_operand_object **object,
 
         return (AE_OK);
 }
-
 #endif                          /*  ACPI_FUTURE_USAGE  */
 
 /*******************************************************************************
@@ -152,7 +150,7 @@ acpi_ds_result_pop(union acpi_operand_object ** object,
         acpi_native_uint index;
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_NAME("ds_result_pop");
+        ACPI_FUNCTION_NAME(ds_result_pop);
 
         state = walk_state->results;
         if (!state) {
@@ -170,6 +168,7 @@ acpi_ds_result_pop(union acpi_operand_object ** object,
         state->results.num_results--;
 
         for (index = ACPI_OBJ_NUM_OPERANDS; index; index--) {
+
                 /* Check for a valid result object */
 
                 if (state->results.obj_desc[index - 1]) {
@@ -213,7 +212,7 @@ acpi_ds_result_pop_from_bottom(union acpi_operand_object ** object,
         acpi_native_uint index;
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_NAME("ds_result_pop_from_bottom");
+        ACPI_FUNCTION_NAME(ds_result_pop_from_bottom);
 
         state = walk_state->results;
         if (!state) {
@@ -278,7 +277,7 @@ acpi_ds_result_push(union acpi_operand_object * object,
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_NAME("ds_result_push");
+        ACPI_FUNCTION_NAME(ds_result_push);
 
         state = walk_state->results;
         if (!state) {
@@ -331,14 +330,14 @@ acpi_status acpi_ds_result_stack_push(struct acpi_walk_state * walk_state)
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_NAME("ds_result_stack_push");
+        ACPI_FUNCTION_NAME(ds_result_stack_push);
 
         state = acpi_ut_create_generic_state();
         if (!state) {
                 return (AE_NO_MEMORY);
         }
 
-        state->common.data_type = ACPI_DESC_TYPE_STATE_RESULT;
+        state->common.descriptor_type = ACPI_DESC_TYPE_STATE_RESULT;
         acpi_ut_push_generic_state(&walk_state->results, state);
 
         ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Results=%p State=%p\n",
@@ -363,7 +362,7 @@ acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state * walk_state)
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_NAME("ds_result_stack_pop");
+        ACPI_FUNCTION_NAME(ds_result_stack_pop);
 
         /* Check for stack underflow */
 
@@ -376,7 +375,7 @@ acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state * walk_state)
         state = acpi_ut_pop_generic_state(&walk_state->results);
 
         ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                          "Result=%p remaining_results=%X State=%p\n",
+                          "Result=%p RemainingResults=%X State=%p\n",
                           state, state->results.num_results, walk_state));
 
         acpi_ut_delete_generic_state(state);
@@ -400,7 +399,7 @@ acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state * walk_state)
 acpi_status
 acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state)
 {
-        ACPI_FUNCTION_NAME("ds_obj_stack_push");
+        ACPI_FUNCTION_NAME(ds_obj_stack_push);
 
         /* Check for stack overflow */
 
@@ -445,9 +444,10 @@ acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state)
 {
         u32 i;
 
-        ACPI_FUNCTION_NAME("ds_obj_stack_pop");
+        ACPI_FUNCTION_NAME(ds_obj_stack_pop);
 
         for (i = 0; i < pop_count; i++) {
+
                 /* Check for stack underflow */
 
                 if (walk_state->num_operands == 0) {
@@ -491,9 +491,10 @@ acpi_ds_obj_stack_pop_and_delete(u32 pop_count,
         u32 i;
         union acpi_operand_object *obj_desc;
 
-        ACPI_FUNCTION_NAME("ds_obj_stack_pop_and_delete");
+        ACPI_FUNCTION_NAME(ds_obj_stack_pop_and_delete);
 
         for (i = 0; i < pop_count; i++) {
+
                 /* Check for stack underflow */
 
                 if (walk_state->num_operands == 0) {
@@ -538,13 +539,13 @@ acpi_ds_obj_stack_pop_and_delete(u32 pop_count,
 struct acpi_walk_state *acpi_ds_get_current_walk_state(struct acpi_thread_state
                                                        *thread)
 {
-        ACPI_FUNCTION_NAME("ds_get_current_walk_state");
+        ACPI_FUNCTION_NAME(ds_get_current_walk_state);
 
         if (!thread) {
                 return (NULL);
         }
 
-        ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Current walk_state %p\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Current WalkState %p\n",
                           thread->walk_state_list));
 
         return (thread->walk_state_list);
@@ -567,7 +568,7 @@ void
 acpi_ds_push_walk_state(struct acpi_walk_state *walk_state,
                         struct acpi_thread_state *thread)
 {
-        ACPI_FUNCTION_TRACE("ds_push_walk_state");
+        ACPI_FUNCTION_TRACE(ds_push_walk_state);
 
         walk_state->next = thread->walk_state_list;
         thread->walk_state_list = walk_state;
@@ -593,11 +594,12 @@ struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread)
 {
         struct acpi_walk_state *walk_state;
 
-        ACPI_FUNCTION_TRACE("ds_pop_walk_state");
+        ACPI_FUNCTION_TRACE(ds_pop_walk_state);
 
         walk_state = thread->walk_state_list;
 
         if (walk_state) {
+
                 /* Next walk state becomes the current walk state */
 
                 thread->walk_state_list = walk_state->next;
@@ -618,7 +620,7 @@ struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread)
  *
  * PARAMETERS:  owner_id        - ID for object creation
  *              Origin          - Starting point for this walk
- *              mth_desc        - Method object
+ *              method_desc     - Method object
  *              Thread          - Current thread state
  *
  * RETURN:      Pointer to the new walk state.
@@ -632,24 +634,24 @@ struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id,
                                                   union acpi_parse_object
                                                   *origin,
                                                   union acpi_operand_object
-                                                  *mth_desc,
+                                                  *method_desc,
                                                   struct acpi_thread_state
                                                   *thread)
 {
         struct acpi_walk_state *walk_state;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ds_create_walk_state");
+        ACPI_FUNCTION_TRACE(ds_create_walk_state);
 
-        walk_state = ACPI_MEM_CALLOCATE(sizeof(struct acpi_walk_state));
+        walk_state = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_walk_state));
         if (!walk_state) {
                 return_PTR(NULL);
         }
 
-        walk_state->data_type = ACPI_DESC_TYPE_WALK;
+        walk_state->descriptor_type = ACPI_DESC_TYPE_WALK;
+        walk_state->method_desc = method_desc;
         walk_state->owner_id = owner_id;
         walk_state->origin = origin;
-        walk_state->method_desc = mth_desc;
         walk_state->thread = thread;
 
         walk_state->parser_state.start_op = origin;
@@ -664,7 +666,7 @@ struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id,
 
         status = acpi_ds_result_stack_push(walk_state);
         if (ACPI_FAILURE(status)) {
-                ACPI_MEM_FREE(walk_state);
+                ACPI_FREE(walk_state);
                 return_PTR(NULL);
         }
 
@@ -701,13 +703,13 @@ acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state,
                       struct acpi_namespace_node *method_node,
                       u8 * aml_start,
                       u32 aml_length,
-                      struct acpi_parameter_info *info, u8 pass_number)
+                      struct acpi_evaluate_info *info, u8 pass_number)
 {
         acpi_status status;
         struct acpi_parse_state *parser_state = &walk_state->parser_state;
         union acpi_parse_object *extra_op;
 
-        ACPI_FUNCTION_TRACE("ds_init_aml_walk");
+        ACPI_FUNCTION_TRACE(ds_init_aml_walk);
 
         walk_state->parser_state.aml =
             walk_state->parser_state.aml_start = aml_start;
@@ -778,6 +780,7 @@ acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state,
                 }
 
                 if (parser_state->start_node) {
+
                         /* Push start scope on scope stack and make it current  */
 
                         status =
@@ -810,21 +813,24 @@ void acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state)
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_delete_walk_state", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_delete_walk_state, walk_state);
 
         if (!walk_state) {
                 return;
         }
 
-        if (walk_state->data_type != ACPI_DESC_TYPE_WALK) {
+        if (walk_state->descriptor_type != ACPI_DESC_TYPE_WALK) {
                 ACPI_ERROR((AE_INFO, "%p is not a valid walk state",
                             walk_state));
                 return;
         }
 
+        /* There should not be any open scopes */
+
         if (walk_state->parser_state.scope) {
                 ACPI_ERROR((AE_INFO, "%p walk still has a scope list",
                             walk_state));
+                acpi_ps_cleanup_scope(&walk_state->parser_state);
         }
 
         /* Always must free any linked control states */
@@ -854,7 +860,7 @@ void acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state)
                 acpi_ut_delete_generic_state(state);
         }
 
-        ACPI_MEM_FREE(walk_state);
+        ACPI_FREE(walk_state);
         return_VOID;
 }
 
@@ -879,7 +885,7 @@ acpi_ds_result_insert(void *object,
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_NAME("ds_result_insert");
+        ACPI_FUNCTION_NAME(ds_result_insert);
 
         state = walk_state->results;
         if (!state) {
@@ -937,7 +943,7 @@ acpi_status acpi_ds_obj_stack_delete_all(struct acpi_walk_state * walk_state)
 {
         u32 i;
 
-        ACPI_FUNCTION_TRACE_PTR("ds_obj_stack_delete_all", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_obj_stack_delete_all, walk_state);
 
         /* The stack size is configurable, but fixed */
 
@@ -969,7 +975,7 @@ acpi_status
 acpi_ds_obj_stack_pop_object(union acpi_operand_object **object,
                              struct acpi_walk_state *walk_state)
 {
-        ACPI_FUNCTION_NAME("ds_obj_stack_pop_object");
+        ACPI_FUNCTION_NAME(ds_obj_stack_pop_object);
 
         /* Check for stack underflow */
 
@@ -1025,7 +1031,7 @@ acpi_ds_obj_stack_pop_object(union acpi_operand_object **object,
 void *acpi_ds_obj_stack_get_value(u32 index, struct acpi_walk_state *walk_state)
 {
 
-        ACPI_FUNCTION_TRACE_PTR("ds_obj_stack_get_value", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ds_obj_stack_get_value, walk_state);
 
         /* Can't do it if the stack is empty */
 
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index eee0864ba300..18b3ea9dace2 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -116,7 +116,7 @@ union acpi_ec {
                 struct acpi_generic_address command_addr;
                 struct acpi_generic_address data_addr;
                 unsigned long global_lock;
-                spinlock_t lock;
+                struct semaphore sem;
         } poll;
 };
 
@@ -323,7 +323,6 @@ static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data)
 {
         acpi_status status = AE_OK;
         int result = 0;
-        unsigned long flags = 0;
         u32 glk = 0;
 
         ACPI_FUNCTION_TRACE("acpi_ec_read");
@@ -339,8 +338,11 @@ static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data)
                         return_VALUE(-ENODEV);
         }
 
-        spin_lock_irqsave(&ec->poll.lock, flags);
-
+        if (down_interruptible(&ec->poll.sem)) {
+                result = -ERESTARTSYS;
+                goto end_nosem;
+        }
+        
         acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ,
                                 &ec->common.command_addr);
         result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
@@ -358,8 +360,8 @@ static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data)
                           *data, address));
 
       end:
-        spin_unlock_irqrestore(&ec->poll.lock, flags);
-
+        up(&ec->poll.sem);
+end_nosem:
         if (ec->common.global_lock)
                 acpi_release_global_lock(glk);
 
@@ -370,7 +372,6 @@ static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)
 {
         int result = 0;
         acpi_status status = AE_OK;
-        unsigned long flags = 0;
         u32 glk = 0;
 
         ACPI_FUNCTION_TRACE("acpi_ec_write");
@@ -384,8 +385,11 @@ static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)
                         return_VALUE(-ENODEV);
         }
 
-        spin_lock_irqsave(&ec->poll.lock, flags);
-
+        if (down_interruptible(&ec->poll.sem)) {
+                result = -ERESTARTSYS;
+                goto end_nosem;
+        }
+        
         acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE,
                                 &ec->common.command_addr);
         result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
@@ -406,8 +410,8 @@ static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)
                           data, address));
 
       end:
-        spin_unlock_irqrestore(&ec->poll.lock, flags);
-
+        up(&ec->poll.sem);
+end_nosem:
         if (ec->common.global_lock)
                 acpi_release_global_lock(glk);
 
@@ -568,7 +572,6 @@ static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data)
 {
         int result = 0;
         acpi_status status = AE_OK;
-        unsigned long flags = 0;
         u32 glk = 0;
 
         ACPI_FUNCTION_TRACE("acpi_ec_query");
@@ -589,8 +592,11 @@ static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data)
          * Note that successful completion of the query causes the ACPI_EC_SCI
          * bit to be cleared (and thus clearing the interrupt source).
          */
-        spin_lock_irqsave(&ec->poll.lock, flags);
-
+        if (down_interruptible(&ec->poll.sem)) {
+                result = -ERESTARTSYS;
+                goto end_nosem;
+        }
+        
         acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY,
                                 &ec->common.command_addr);
         result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
@@ -602,8 +608,8 @@ static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data)
                 result = -ENODATA;
 
       end:
-        spin_unlock_irqrestore(&ec->poll.lock, flags);
-
+        up(&ec->poll.sem);
+end_nosem:
         if (ec->common.global_lock)
                 acpi_release_global_lock(glk);
 
@@ -680,7 +686,6 @@ static void acpi_ec_gpe_poll_query(void *ec_cxt)
 {
         union acpi_ec *ec = (union acpi_ec *)ec_cxt;
         u32 value = 0;
-        unsigned long flags = 0;
         static char object_name[5] = { '_', 'Q', '0', '0', '\0' };
         const char hex[] = { '0', '1', '2', '3', '4', '5', '6', '7',
                 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
@@ -691,9 +696,11 @@ static void acpi_ec_gpe_poll_query(void *ec_cxt)
         if (!ec_cxt)
                 goto end;
 
-        spin_lock_irqsave(&ec->poll.lock, flags);
+        if (down_interruptible (&ec->poll.sem)) {
+                return_VOID;
+        }
         acpi_hw_low_level_read(8, &value, &ec->common.command_addr);
-        spin_unlock_irqrestore(&ec->poll.lock, flags);
+        up(&ec->poll.sem);
 
         /* TBD: Implement asynch events!
          * NOTE: All we care about are EC-SCI's.  Other EC events are
@@ -763,8 +770,7 @@ static u32 acpi_ec_gpe_poll_handler(void *data)
 
         acpi_disable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
 
-        status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
-                                             acpi_ec_gpe_query, ec);
+        status = acpi_os_execute(OSL_EC_POLL_HANDLER, acpi_ec_gpe_query, ec);
 
         if (status == AE_OK)
                 return ACPI_INTERRUPT_HANDLED;
@@ -799,7 +805,7 @@ static u32 acpi_ec_gpe_intr_handler(void *data)
 
         if (value & ACPI_EC_FLAG_SCI) {
                 atomic_add(1, &ec->intr.pending_gpe);
-                status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
+                status = acpi_os_execute(OSL_EC_BURST_HANDLER,
                                                      acpi_ec_gpe_query, ec);
                 return status == AE_OK ?
                     ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
@@ -991,7 +997,6 @@ static int acpi_ec_poll_add(struct acpi_device *device)
         int result = 0;
         acpi_status status = AE_OK;
         union acpi_ec *ec = NULL;
-        unsigned long uid;
 
         ACPI_FUNCTION_TRACE("acpi_ec_add");
 
@@ -1005,7 +1010,7 @@ static int acpi_ec_poll_add(struct acpi_device *device)
 
         ec->common.handle = device->handle;
         ec->common.uid = -1;
-        spin_lock_init(&ec->poll.lock);
+        init_MUTEX(&ec->poll.sem);
         strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_EC_CLASS);
         acpi_driver_data(device) = ec;
@@ -1014,10 +1019,9 @@ static int acpi_ec_poll_add(struct acpi_device *device)
         acpi_evaluate_integer(ec->common.handle, "_GLK", NULL,
                               &ec->common.global_lock);
 
-        /* If our UID matches the UID for the ECDT-enumerated EC,
-           we now have the *real* EC info, so kill the makeshift one. */
-        acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid);
-        if (ec_ecdt && ec_ecdt->common.uid == uid) {
+        /* XXX we don't test uids, because on some boxes ecdt uid = 0, see:
+           http://bugzilla.kernel.org/show_bug.cgi?id=6111 */
+        if (ec_ecdt) {
                 acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
                                                   ACPI_ADR_SPACE_EC,
                                                   &acpi_ec_space_handler);
@@ -1062,7 +1066,6 @@ static int acpi_ec_intr_add(struct acpi_device *device)
         int result = 0;
         acpi_status status = AE_OK;
         union acpi_ec *ec = NULL;
-        unsigned long uid;
 
         ACPI_FUNCTION_TRACE("acpi_ec_add");
 
@@ -1088,10 +1091,9 @@ static int acpi_ec_intr_add(struct acpi_device *device)
         acpi_evaluate_integer(ec->common.handle, "_GLK", NULL,
                               &ec->common.global_lock);
 
-        /* If our UID matches the UID for the ECDT-enumerated EC,
-           we now have the *real* EC info, so kill the makeshift one. */
-        acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid);
-        if (ec_ecdt && ec_ecdt->common.uid == uid) {
+        /* XXX we don't test uids, because on some boxes ecdt uid = 0, see:
+           http://bugzilla.kernel.org/show_bug.cgi?id=6111 */
+        if (ec_ecdt) {
                 acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
                                                   ACPI_ADR_SPACE_EC,
                                                   &acpi_ec_space_handler);
@@ -1300,7 +1302,7 @@ acpi_fake_ecdt_poll_callback(acpi_handle handle,
                                   &ec_ecdt->common.gpe_bit);
         if (ACPI_FAILURE(status))
                 return status;
-        spin_lock_init(&ec_ecdt->poll.lock);
+        init_MUTEX(&ec_ecdt->poll.sem);
         ec_ecdt->common.global_lock = TRUE;
         ec_ecdt->common.handle = handle;
 
@@ -1416,7 +1418,7 @@ static int __init acpi_ec_poll_get_real_ecdt(void)
         ec_ecdt->common.status_addr = ecdt_ptr->ec_control;
         ec_ecdt->common.data_addr = ecdt_ptr->ec_data;
         ec_ecdt->common.gpe_bit = ecdt_ptr->gpe_bit;
-        spin_lock_init(&ec_ecdt->poll.lock);
+        init_MUTEX(&ec_ecdt->poll.sem);
         /* use the GL just to be safe */
         ec_ecdt->common.global_lock = TRUE;
         ec_ecdt->common.uid = ecdt_ptr->uid;
diff --git a/drivers/acpi/events/evevent.c b/drivers/acpi/events/evevent.c
index c9ac05c4685f..919037d6acff 100644
--- a/drivers/acpi/events/evevent.c
+++ b/drivers/acpi/events/evevent.c
@@ -68,7 +68,7 @@ acpi_status acpi_ev_initialize_events(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_initialize_events");
+        ACPI_FUNCTION_TRACE(ev_initialize_events);
 
         /* Make sure we have ACPI tables */
 
@@ -118,7 +118,7 @@ acpi_status acpi_ev_install_fadt_gpes(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_install_fadt_gpes");
+        ACPI_FUNCTION_TRACE(ev_install_fadt_gpes);
 
         /* Namespace must be locked */
 
@@ -157,7 +157,7 @@ acpi_status acpi_ev_install_xrupt_handlers(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_install_xrupt_handlers");
+        ACPI_FUNCTION_TRACE(ev_install_xrupt_handlers);
 
         /* Install the SCI handler */
 
@@ -241,7 +241,7 @@ u32 acpi_ev_fixed_event_detect(void)
         u32 fixed_enable;
         acpi_native_uint i;
 
-        ACPI_FUNCTION_NAME("ev_fixed_event_detect");
+        ACPI_FUNCTION_NAME(ev_fixed_event_detect);
 
         /*
          * Read the fixed feature status and enable registers, as all the cases
@@ -260,12 +260,14 @@ u32 acpi_ev_fixed_event_detect(void)
          * Check for all possible Fixed Events and dispatch those that are active
          */
         for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
+
                 /* Both the status and enable bits must be on for this event */
 
                 if ((fixed_status & acpi_gbl_fixed_event_info[i].
                      status_bit_mask)
                     && (fixed_enable & acpi_gbl_fixed_event_info[i].
                         enable_bit_mask)) {
+
                         /* Found an active (signalled) event */
 
                         int_status |= acpi_ev_fixed_event_dispatch((u32) i);
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index f64f977dd3d5..f01d339407f8 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -69,7 +69,7 @@ acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_set_gpe_type");
+        ACPI_FUNCTION_TRACE(ev_set_gpe_type);
 
         /* Validate type and update register enable masks */
 
@@ -115,7 +115,7 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info,
         struct acpi_gpe_register_info *gpe_register_info;
         u8 register_bit;
 
-        ACPI_FUNCTION_TRACE("ev_update_gpe_enable_masks");
+        ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks);
 
         gpe_register_info = gpe_event_info->register_info;
         if (!gpe_register_info) {
@@ -178,7 +178,7 @@ acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_enable_gpe");
+        ACPI_FUNCTION_TRACE(ev_enable_gpe);
 
         /* Make sure HW enable masks are updated */
 
@@ -207,6 +207,7 @@ acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
                 ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
 
                 if (write_to_hardware) {
+
                         /* Clear the GPE (of stale events), then enable it */
 
                         status = acpi_hw_clear_gpe(gpe_event_info);
@@ -243,7 +244,7 @@ acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_disable_gpe");
+        ACPI_FUNCTION_TRACE(ev_disable_gpe);
 
         if (!(gpe_event_info->flags & ACPI_GPE_ENABLE_MASK)) {
                 return_ACPI_STATUS(AE_OK);
@@ -313,6 +314,7 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
         /* A NULL gpe_block means use the FADT-defined GPE block(s) */
 
         if (!gpe_device) {
+
                 /* Examine GPE Block 0 and 1 (These blocks are permanent) */
 
                 for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++) {
@@ -380,10 +382,11 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
         u32 status_reg;
         u32 enable_reg;
         acpi_cpu_flags flags;
+        acpi_cpu_flags hw_flags;
         acpi_native_uint i;
         acpi_native_uint j;
 
-        ACPI_FUNCTION_NAME("ev_gpe_detect");
+        ACPI_FUNCTION_NAME(ev_gpe_detect);
 
         /* Check for the case where there are no GPEs */
 
@@ -391,9 +394,12 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
                 return (int_status);
         }
 
-        /* Examine all GPE blocks attached to this interrupt level */
+        /* We need to hold the GPE lock now, hardware lock in the loop */
 
         flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+        /* Examine all GPE blocks attached to this interrupt level */
+
         gpe_block = gpe_xrupt_list->gpe_block_list_head;
         while (gpe_block) {
                 /*
@@ -402,10 +408,13 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
                  * Find all currently active GP events.
                  */
                 for (i = 0; i < gpe_block->register_count; i++) {
+
                         /* Get the next status/enable pair */
 
                         gpe_register_info = &gpe_block->register_info[i];
 
+                        hw_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
+
                         /* Read the Status Register */
 
                         status =
@@ -414,6 +423,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
                                                    &gpe_register_info->
                                                    status_address);
                         if (ACPI_FAILURE(status)) {
+                                acpi_os_release_lock(acpi_gbl_hardware_lock,
+                                                     hw_flags);
                                 goto unlock_and_exit;
                         }
 
@@ -424,6 +435,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
                                                    &enable_reg,
                                                    &gpe_register_info->
                                                    enable_address);
+                        acpi_os_release_lock(acpi_gbl_hardware_lock, hw_flags);
+
                         if (ACPI_FAILURE(status)) {
                                 goto unlock_and_exit;
                         }
@@ -437,6 +450,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
 
                         enabled_status_byte = (u8) (status_reg & enable_reg);
                         if (!enabled_status_byte) {
+
                                 /* No active GPEs in this register, move on */
 
                                 continue;
@@ -445,6 +459,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
                         /* Now look at the individual GPEs in this byte register */
 
                         for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
+
                                 /* Examine one GPE bit */
 
                                 if (enabled_status_byte &
@@ -483,9 +498,9 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
  *
  * RETURN:      None
  *
- * DESCRIPTION: Perform the actual execution of a GPE control method.  This
- *              function is called from an invocation of acpi_os_queue_for_execution
- *              (and therefore does NOT execute at interrupt level) so that
+ * DESCRIPTION: Perform the actual execution of a GPE control method. This
+ *              function is called from an invocation of acpi_os_execute and
+ *              therefore does NOT execute at interrupt level - so that
  *              the control method itself is not executed in the context of
  *              an interrupt handler.
  *
@@ -494,12 +509,11 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
 static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
 {
         struct acpi_gpe_event_info *gpe_event_info = (void *)context;
-        u32 gpe_number = 0;
         acpi_status status;
         struct acpi_gpe_event_info local_gpe_event_info;
-        struct acpi_parameter_info info;
+        struct acpi_evaluate_info *info;
 
-        ACPI_FUNCTION_TRACE("ev_asynch_execute_gpe_method");
+        ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method);
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
         if (ACPI_FAILURE(status)) {
@@ -535,22 +549,35 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
          */
         if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) ==
             ACPI_GPE_DISPATCH_METHOD) {
-                /*
-                 * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx
-                 * control method that corresponds to this GPE
-                 */
-                info.node = local_gpe_event_info.dispatch.method_node;
-                info.parameters =
-                    ACPI_CAST_PTR(union acpi_operand_object *, gpe_event_info);
-                info.parameter_type = ACPI_PARAM_GPE;
 
-                status = acpi_ns_evaluate_by_handle(&info);
+                /* Allocate the evaluation information block */
+
+                info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+                if (!info) {
+                        status = AE_NO_MEMORY;
+                } else {
+                        /*
+                         * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx
+                         * control method that corresponds to this GPE
+                         */
+                        info->prefix_node =
+                            local_gpe_event_info.dispatch.method_node;
+                        info->parameters =
+                            ACPI_CAST_PTR(union acpi_operand_object *,
+                                          gpe_event_info);
+                        info->parameter_type = ACPI_PARAM_GPE;
+                        info->flags = ACPI_IGNORE_RETURN_VALUE;
+
+                        status = acpi_ns_evaluate(info);
+                        ACPI_FREE(info);
+                }
+
                 if (ACPI_FAILURE(status)) {
                         ACPI_EXCEPTION((AE_INFO, status,
-                                        "While evaluating method [%4.4s] for GPE[%2X]",
+                                        "While evaluating GPE method [%4.4s]",
                                         acpi_ut_get_node_name
                                         (local_gpe_event_info.dispatch.
-                                         method_node), gpe_number));
+                                         method_node)));
                 }
         }
 
@@ -593,7 +620,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_gpe_dispatch");
+        ACPI_FUNCTION_TRACE(ev_gpe_dispatch);
 
         /*
          * If edge-triggered, clear the GPE status bit now.  Note that
@@ -669,9 +696,9 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
                  * Execute the method associated with the GPE
                  * NOTE: Level-triggered GPEs are cleared after the method completes.
                  */
-                status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
-                                                     acpi_ev_asynch_execute_gpe_method,
-                                                     gpe_event_info);
+                status = acpi_os_execute(OSL_GPE_HANDLER,
+                                         acpi_ev_asynch_execute_gpe_method,
+                                         gpe_event_info);
                 if (ACPI_FAILURE(status)) {
                         ACPI_EXCEPTION((AE_INFO, status,
                                         "Unable to queue handler for GPE[%2X] - event disabled",
@@ -716,7 +743,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
  *
  * DESCRIPTION: Determine if a a GPE is "wake-only".
  *
- *              Called from Notify() code in interpreter when a "device_wake"
+ *              Called from Notify() code in interpreter when a "DeviceWake"
  *              Notify comes in.
  *
  ******************************************************************************/
@@ -726,7 +753,7 @@ acpi_ev_check_for_wake_only_gpe(struct acpi_gpe_event_info *gpe_event_info)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_check_for_wake_only_gpe");
+        ACPI_FUNCTION_TRACE(ev_check_for_wake_only_gpe);
 
         if ((gpe_event_info) && /* Only >0 for _Lxx/_Exx */
             ((gpe_event_info->flags & ACPI_GPE_SYSTEM_MASK) == ACPI_GPE_SYSTEM_RUNNING)) {      /* System state at GPE time */
diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c
index 0fd00b5ad650..95ddeb48bc0f 100644
--- a/drivers/acpi/events/evgpeblk.c
+++ b/drivers/acpi/events/evgpeblk.c
@@ -131,14 +131,14 @@ u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info)
  *
  ******************************************************************************/
 
-acpi_status acpi_ev_walk_gpe_list(ACPI_GPE_CALLBACK gpe_walk_callback)
+acpi_status acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback)
 {
         struct acpi_gpe_block_info *gpe_block;
         struct acpi_gpe_xrupt_info *gpe_xrupt_info;
         acpi_status status = AE_OK;
         acpi_cpu_flags flags;
 
-        ACPI_FUNCTION_TRACE("ev_walk_gpe_list");
+        ACPI_FUNCTION_TRACE(ev_walk_gpe_list);
 
         flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
 
@@ -146,10 +146,12 @@ acpi_status acpi_ev_walk_gpe_list(ACPI_GPE_CALLBACK gpe_walk_callback)
 
         gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
         while (gpe_xrupt_info) {
+
                 /* Walk all Gpe Blocks attached to this interrupt level */
 
                 gpe_block = gpe_xrupt_info->gpe_block_list_head;
                 while (gpe_block) {
+
                         /* One callback per GPE block */
 
                         status = gpe_walk_callback(gpe_xrupt_info, gpe_block);
@@ -190,11 +192,12 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
         acpi_native_uint i;
         acpi_native_uint j;
 
-        ACPI_FUNCTION_TRACE("ev_delete_gpe_handlers");
+        ACPI_FUNCTION_TRACE(ev_delete_gpe_handlers);
 
         /* Examine each GPE Register within the block */
 
         for (i = 0; i < gpe_block->register_count; i++) {
+
                 /* Now look at the individual GPEs in this byte register */
 
                 for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
@@ -204,7 +207,7 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 
                         if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
                             ACPI_GPE_DISPATCH_HANDLER) {
-                                ACPI_MEM_FREE(gpe_event_info->dispatch.handler);
+                                ACPI_FREE(gpe_event_info->dispatch.handler);
                                 gpe_event_info->dispatch.handler = NULL;
                                 gpe_event_info->flags &=
                                     ~ACPI_GPE_DISPATCH_MASK;
@@ -248,7 +251,7 @@ acpi_ev_save_method_info(acpi_handle obj_handle,
         u8 type;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_save_method_info");
+        ACPI_FUNCTION_TRACE(ev_save_method_info);
 
         /*
          * _Lxx and _Exx GPE method support
@@ -279,9 +282,9 @@ acpi_ev_save_method_info(acpi_handle obj_handle,
         default:
                 /* Unknown method type, just ignore it! */
 
-                ACPI_ERROR((AE_INFO,
-                            "Unknown GPE method type: %s (name not of form _Lxx or _Exx)",
-                            name));
+                ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
+                                  "Ignoring unknown GPE method type: %s (name not of form _Lxx or _Exx)",
+                                  name));
                 return_ACPI_STATUS(AE_OK);
         }
 
@@ -289,11 +292,12 @@ acpi_ev_save_method_info(acpi_handle obj_handle,
 
         gpe_number = ACPI_STRTOUL(&name[2], NULL, 16);
         if (gpe_number == ACPI_UINT32_MAX) {
+
                 /* Conversion failed; invalid method, just ignore it */
 
-                ACPI_ERROR((AE_INFO,
-                            "Could not extract GPE number from name: %s (name is not of form _Lxx or _Exx)",
-                            name));
+                ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
+                                  "Could not extract GPE number from name: %s (name is not of form _Lxx or _Exx)",
+                                  name));
                 return_ACPI_STATUS(AE_OK);
         }
 
@@ -364,13 +368,14 @@ acpi_ev_match_prw_and_gpe(acpi_handle obj_handle,
         u32 gpe_number;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_match_prw_and_gpe");
+        ACPI_FUNCTION_TRACE(ev_match_prw_and_gpe);
 
         /* Check for a _PRW method under this device */
 
         status = acpi_ut_evaluate_object(obj_handle, METHOD_NAME__PRW,
                                          ACPI_BTYPE_PACKAGE, &pkg_desc);
         if (ACPI_FAILURE(status)) {
+
                 /* Ignore all errors from _PRW, we don't want to abort the subsystem */
 
                 return_ACPI_STATUS(AE_OK);
@@ -394,6 +399,7 @@ acpi_ev_match_prw_and_gpe(acpi_handle obj_handle,
         obj_desc = pkg_desc->package.elements[0];
 
         if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
                 /* Use FADT-defined GPE device (from definition of _PRW) */
 
                 target_gpe_device = acpi_gbl_fadt_gpe_device;
@@ -402,6 +408,7 @@ acpi_ev_match_prw_and_gpe(acpi_handle obj_handle,
 
                 gpe_number = (u32) obj_desc->integer.value;
         } else if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
+
                 /* Package contains a GPE reference and GPE number within a GPE block */
 
                 if ((obj_desc->package.count < 2) ||
@@ -482,7 +489,7 @@ static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32
         acpi_status status;
         acpi_cpu_flags flags;
 
-        ACPI_FUNCTION_TRACE("ev_get_gpe_xrupt_block");
+        ACPI_FUNCTION_TRACE(ev_get_gpe_xrupt_block);
 
         /* No need for lock since we are not changing any list elements here */
 
@@ -497,7 +504,7 @@ static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32
 
         /* Not found, must allocate a new xrupt descriptor */
 
-        gpe_xrupt = ACPI_MEM_CALLOCATE(sizeof(struct acpi_gpe_xrupt_info));
+        gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info));
         if (!gpe_xrupt) {
                 return_PTR(NULL);
         }
@@ -556,7 +563,7 @@ acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt)
         acpi_status status;
         acpi_cpu_flags flags;
 
-        ACPI_FUNCTION_TRACE("ev_delete_gpe_xrupt");
+        ACPI_FUNCTION_TRACE(ev_delete_gpe_xrupt);
 
         /* We never want to remove the SCI interrupt handler */
 
@@ -588,7 +595,7 @@ acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt)
 
         /* Free the block */
 
-        ACPI_MEM_FREE(gpe_xrupt);
+        ACPI_FREE(gpe_xrupt);
         return_ACPI_STATUS(AE_OK);
 }
 
@@ -614,7 +621,7 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
         acpi_status status;
         acpi_cpu_flags flags;
 
-        ACPI_FUNCTION_TRACE("ev_install_gpe_block");
+        ACPI_FUNCTION_TRACE(ev_install_gpe_block);
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
         if (ACPI_FAILURE(status)) {
@@ -667,7 +674,7 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
         acpi_status status;
         acpi_cpu_flags flags;
 
-        ACPI_FUNCTION_TRACE("ev_install_gpe_block");
+        ACPI_FUNCTION_TRACE(ev_install_gpe_block);
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
         if (ACPI_FAILURE(status)) {
@@ -679,6 +686,7 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
         status = acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block);
 
         if (!gpe_block->previous && !gpe_block->next) {
+
                 /* This is the last gpe_block on this interrupt */
 
                 status = acpi_ev_delete_gpe_xrupt(gpe_block->xrupt_block);
@@ -704,9 +712,9 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
 
         /* Free the gpe_block */
 
-        ACPI_MEM_FREE(gpe_block->register_info);
-        ACPI_MEM_FREE(gpe_block->event_info);
-        ACPI_MEM_FREE(gpe_block);
+        ACPI_FREE(gpe_block->register_info);
+        ACPI_FREE(gpe_block->event_info);
+        ACPI_FREE(gpe_block);
 
       unlock_and_exit:
         status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
@@ -736,17 +744,17 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
         acpi_native_uint j;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_create_gpe_info_blocks");
+        ACPI_FUNCTION_TRACE(ev_create_gpe_info_blocks);
 
         /* Allocate the GPE register information block */
 
-        gpe_register_info = ACPI_MEM_CALLOCATE((acpi_size) gpe_block->
-                                               register_count *
-                                               sizeof(struct
-                                                      acpi_gpe_register_info));
+        gpe_register_info = ACPI_ALLOCATE_ZEROED((acpi_size) gpe_block->
+                                                 register_count *
+                                                 sizeof(struct
+                                                        acpi_gpe_register_info));
         if (!gpe_register_info) {
                 ACPI_ERROR((AE_INFO,
-                            "Could not allocate the gpe_register_info table"));
+                            "Could not allocate the GpeRegisterInfo table"));
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
 
@@ -754,13 +762,14 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
          * Allocate the GPE event_info block. There are eight distinct GPEs
          * per register. Initialization to zeros is sufficient.
          */
-        gpe_event_info = ACPI_MEM_CALLOCATE(((acpi_size) gpe_block->
-                                             register_count *
-                                             ACPI_GPE_REGISTER_WIDTH) *
-                                            sizeof(struct acpi_gpe_event_info));
+        gpe_event_info = ACPI_ALLOCATE_ZEROED(((acpi_size) gpe_block->
+                                               register_count *
+                                               ACPI_GPE_REGISTER_WIDTH) *
+                                              sizeof(struct
+                                                     acpi_gpe_event_info));
         if (!gpe_event_info) {
                 ACPI_ERROR((AE_INFO,
-                            "Could not allocate the gpe_event_info table"));
+                            "Could not allocate the GpeEventInfo table"));
                 status = AE_NO_MEMORY;
                 goto error_exit;
         }
@@ -780,6 +789,7 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
         this_event = gpe_event_info;
 
         for (i = 0; i < gpe_block->register_count; i++) {
+
                 /* Init the register_info for this GPE register (8 GPEs) */
 
                 this_register->base_gpe_number =
@@ -839,10 +849,10 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
 
       error_exit:
         if (gpe_register_info) {
-                ACPI_MEM_FREE(gpe_register_info);
+                ACPI_FREE(gpe_register_info);
         }
         if (gpe_event_info) {
-                ACPI_MEM_FREE(gpe_event_info);
+                ACPI_FREE(gpe_event_info);
         }
 
         return_ACPI_STATUS(status);
@@ -878,7 +888,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
         acpi_status status;
         struct acpi_gpe_block_info *gpe_block;
 
-        ACPI_FUNCTION_TRACE("ev_create_gpe_block");
+        ACPI_FUNCTION_TRACE(ev_create_gpe_block);
 
         if (!register_count) {
                 return_ACPI_STATUS(AE_OK);
@@ -886,7 +896,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
 
         /* Allocate a new GPE block */
 
-        gpe_block = ACPI_MEM_CALLOCATE(sizeof(struct acpi_gpe_block_info));
+        gpe_block = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_block_info));
         if (!gpe_block) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
@@ -906,7 +916,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
          */
         status = acpi_ev_create_gpe_info_blocks(gpe_block);
         if (ACPI_FAILURE(status)) {
-                ACPI_MEM_FREE(gpe_block);
+                ACPI_FREE(gpe_block);
                 return_ACPI_STATUS(status);
         }
 
@@ -914,7 +924,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
 
         status = acpi_ev_install_gpe_block(gpe_block, interrupt_number);
         if (ACPI_FAILURE(status)) {
-                ACPI_MEM_FREE(gpe_block);
+                ACPI_FREE(gpe_block);
                 return_ACPI_STATUS(status);
         }
 
@@ -971,7 +981,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
         acpi_native_uint i;
         acpi_native_uint j;
 
-        ACPI_FUNCTION_TRACE("ev_initialize_gpe_block");
+        ACPI_FUNCTION_TRACE(ev_initialize_gpe_block);
 
         /* Ignore a null GPE block (e.g., if no GPE block 1 exists) */
 
@@ -1013,6 +1023,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
 
         for (i = 0; i < gpe_block->register_count; i++) {
                 for (j = 0; j < 8; j++) {
+
                         /* Get the info block for this particular GPE */
 
                         gpe_event_info =
@@ -1040,7 +1051,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
 
         status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block);
         if (ACPI_FAILURE(status)) {
-                ACPI_ERROR((AE_INFO, "Could not enable GPEs in gpe_block %p",
+                ACPI_ERROR((AE_INFO, "Could not enable GPEs in GpeBlock %p",
                             gpe_block));
         }
 
@@ -1066,7 +1077,7 @@ acpi_status acpi_ev_gpe_initialize(void)
         u32 gpe_number_max = 0;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_gpe_initialize");
+        ACPI_FUNCTION_TRACE(ev_gpe_initialize);
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
         if (ACPI_FAILURE(status)) {
@@ -1099,6 +1110,7 @@ acpi_status acpi_ev_gpe_initialize(void)
          * particular block is not supported.
          */
         if (acpi_gbl_FADT->gpe0_blk_len && acpi_gbl_FADT->xgpe0_blk.address) {
+
                 /* GPE block 0 exists (has both length and address > 0) */
 
                 register_count0 = (u16) (acpi_gbl_FADT->gpe0_blk_len / 2);
@@ -1121,6 +1133,7 @@ acpi_status acpi_ev_gpe_initialize(void)
         }
 
         if (acpi_gbl_FADT->gpe1_blk_len && acpi_gbl_FADT->xgpe1_blk.address) {
+
                 /* GPE block 1 exists (has both length and address > 0) */
 
                 register_count1 = (u16) (acpi_gbl_FADT->gpe1_blk_len / 2);
@@ -1168,6 +1181,7 @@ acpi_status acpi_ev_gpe_initialize(void)
         /* Exit if there are no GPE registers */
 
         if ((register_count0 + register_count1) == 0) {
+
                 /* GPEs are not required by ACPI, this is OK */
 
                 ACPI_DEBUG_PRINT((ACPI_DB_INIT,
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 0909ba69577e..6eef4efddcf6 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -49,12 +49,13 @@
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evmisc")
 
+/* Names for Notify() values, used for debug output */
 #ifdef ACPI_DEBUG_OUTPUT
 static const char *acpi_notify_value_names[] = {
         "Bus Check",
         "Device Check",
         "Device Wake",
-        "Eject request",
+        "Eject Request",
         "Device Check Light",
         "Frequency Mismatch",
         "Bus Mode Mismatch",
@@ -124,7 +125,7 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
         union acpi_generic_state *notify_info;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_NAME("ev_queue_notify_request");
+        ACPI_FUNCTION_NAME(ev_queue_notify_request);
 
         /*
          * For value 3 (Ejection Request), some device method may need to be run.
@@ -150,6 +151,7 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
 
         obj_desc = acpi_ns_get_attached_object(node);
         if (obj_desc) {
+
                 /* We have the notify object, Get the right handler */
 
                 switch (node->type) {
@@ -184,14 +186,15 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
                         return (AE_NO_MEMORY);
                 }
 
-                notify_info->common.data_type = ACPI_DESC_TYPE_STATE_NOTIFY;
+                notify_info->common.descriptor_type =
+                    ACPI_DESC_TYPE_STATE_NOTIFY;
                 notify_info->notify.node = node;
                 notify_info->notify.value = (u16) notify_value;
                 notify_info->notify.handler_obj = handler_obj;
 
-                status = acpi_os_queue_for_execution(OSD_PRIORITY_HIGH,
-                                                     acpi_ev_notify_dispatch,
-                                                     notify_info);
+                status =
+                    acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch,
+                                    notify_info);
                 if (ACPI_FAILURE(status)) {
                         acpi_ut_delete_generic_state(notify_info);
                 }
@@ -240,6 +243,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context)
          * to the device.
          */
         if (notify_info->notify.value <= ACPI_MAX_SYS_NOTIFY) {
+
                 /* Global system notification handler */
 
                 if (acpi_gbl_system_notify.handler) {
@@ -297,6 +301,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_global_lock_thread(void *context)
         /* Signal threads that are waiting for the lock */
 
         if (acpi_gbl_global_lock_thread_count) {
+
                 /* Send sufficient units to the semaphore */
 
                 status =
@@ -335,15 +340,16 @@ static u32 acpi_ev_global_lock_handler(void *context)
          */
         ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_common_fACS.global_lock, acquired);
         if (acquired) {
+
                 /* Got the lock, now wake all threads waiting for it */
 
                 acpi_gbl_global_lock_acquired = TRUE;
 
                 /* Run the Global Lock thread which will signal all waiting threads */
 
-                status = acpi_os_queue_for_execution(OSD_PRIORITY_HIGH,
-                                                     acpi_ev_global_lock_thread,
-                                                     context);
+                status =
+                    acpi_os_execute(OSL_GLOBAL_LOCK_HANDLER,
+                                    acpi_ev_global_lock_thread, context);
                 if (ACPI_FAILURE(status)) {
                         ACPI_EXCEPTION((AE_INFO, status,
                                         "Could not queue Global Lock thread"));
@@ -371,7 +377,7 @@ acpi_status acpi_ev_init_global_lock_handler(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_init_global_lock_handler");
+        ACPI_FUNCTION_TRACE(ev_init_global_lock_handler);
 
         acpi_gbl_global_lock_present = TRUE;
         status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL,
@@ -413,7 +419,7 @@ acpi_status acpi_ev_acquire_global_lock(u16 timeout)
         acpi_status status = AE_OK;
         u8 acquired = FALSE;
 
-        ACPI_FUNCTION_TRACE("ev_acquire_global_lock");
+        ACPI_FUNCTION_TRACE(ev_acquire_global_lock);
 
 #ifndef ACPI_APPLICATION
         /* Make sure that we actually have a global lock */
@@ -439,6 +445,7 @@ acpi_status acpi_ev_acquire_global_lock(u16 timeout)
 
         ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_common_fACS.global_lock, acquired);
         if (acquired) {
+
                 /* We got the lock */
 
                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
@@ -458,8 +465,9 @@ acpi_status acpi_ev_acquire_global_lock(u16 timeout)
          * Acquire the global lock semaphore first.
          * Since this wait will block, we must release the interpreter
          */
-        status = acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore,
-                                               timeout);
+        status =
+            acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore,
+                                          timeout);
         return_ACPI_STATUS(status);
 }
 
@@ -480,7 +488,7 @@ acpi_status acpi_ev_release_global_lock(void)
         u8 pending = FALSE;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ev_release_global_lock");
+        ACPI_FUNCTION_TRACE(ev_release_global_lock);
 
         if (!acpi_gbl_global_lock_thread_count) {
                 ACPI_WARNING((AE_INFO,
@@ -492,6 +500,7 @@ acpi_status acpi_ev_release_global_lock(void)
 
         acpi_gbl_global_lock_thread_count--;
         if (acpi_gbl_global_lock_thread_count) {
+
                 /* There are still some threads holding the lock, cannot release */
 
                 return_ACPI_STATUS(AE_OK);
@@ -533,7 +542,7 @@ void acpi_ev_terminate(void)
         acpi_native_uint i;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_terminate");
+        ACPI_FUNCTION_TRACE(ev_terminate);
 
         if (acpi_gbl_events_initialized) {
                 /*
@@ -573,7 +582,7 @@ void acpi_ev_terminate(void)
         if (acpi_gbl_original_mode == ACPI_SYS_MODE_LEGACY) {
                 status = acpi_disable();
                 if (ACPI_FAILURE(status)) {
-                        ACPI_WARNING((AE_INFO, "acpi_disable failed"));
+                        ACPI_WARNING((AE_INFO, "AcpiDisable failed"));
                 }
         }
         return_VOID;
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index 6da58e776413..094a17e4c86d 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -83,7 +83,7 @@ acpi_status acpi_ev_install_region_handlers(void)
         acpi_status status;
         acpi_native_uint i;
 
-        ACPI_FUNCTION_TRACE("ev_install_region_handlers");
+        ACPI_FUNCTION_TRACE(ev_install_region_handlers);
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
         if (ACPI_FAILURE(status)) {
@@ -153,7 +153,7 @@ acpi_status acpi_ev_initialize_op_regions(void)
         acpi_status status;
         acpi_native_uint i;
 
-        ACPI_FUNCTION_TRACE("ev_initialize_op_regions");
+        ACPI_FUNCTION_TRACE(ev_initialize_op_regions);
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
         if (ACPI_FAILURE(status)) {
@@ -164,6 +164,7 @@ acpi_status acpi_ev_initialize_op_regions(void)
          * Run the _REG methods for op_regions in each default address space
          */
         for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
+
                 /* TBD: Make sure handler is the DEFAULT handler, otherwise
                  * _REG will have already been run.
                  */
@@ -192,12 +193,12 @@ acpi_status acpi_ev_initialize_op_regions(void)
 acpi_status
 acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
 {
-        struct acpi_parameter_info info;
-        union acpi_operand_object *params[3];
+        struct acpi_evaluate_info *info;
+        union acpi_operand_object *args[3];
         union acpi_operand_object *region_obj2;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_execute_reg_method");
+        ACPI_FUNCTION_TRACE(ev_execute_reg_method);
 
         region_obj2 = acpi_ns_get_secondary_object(region_obj);
         if (!region_obj2) {
@@ -208,48 +209,60 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
                 return_ACPI_STATUS(AE_OK);
         }
 
+        /* Allocate and initialize the evaluation information block */
+
+        info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+        if (!info) {
+                return_ACPI_STATUS(AE_NO_MEMORY);
+        }
+
+        info->prefix_node = region_obj2->extra.method_REG;
+        info->pathname = NULL;
+        info->parameters = args;
+        info->parameter_type = ACPI_PARAM_ARGS;
+        info->flags = ACPI_IGNORE_RETURN_VALUE;
+
         /*
          * The _REG method has two arguments:
          *
-         * Arg0, Integer: Operation region space ID
-         *          Same value as region_obj->Region.space_id
-         * Arg1, Integer: connection status
-         *          1 for connecting the handler,
-         *          0 for disconnecting the handler
-         *          Passed as a parameter
+         * Arg0 - Integer:
+         *  Operation region space ID Same value as region_obj->Region.space_id
+         *
+         * Arg1 - Integer:
+         *  connection status 1 for connecting the handler, 0 for disconnecting
+         *  the handler (Passed as a parameter)
          */
-        params[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
-        if (!params[0]) {
-                return_ACPI_STATUS(AE_NO_MEMORY);
+        args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+        if (!args[0]) {
+                status = AE_NO_MEMORY;
+                goto cleanup1;
         }
 
-        params[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
-        if (!params[1]) {
+        args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+        if (!args[1]) {
                 status = AE_NO_MEMORY;
-                goto cleanup;
+                goto cleanup2;
         }
 
         /* Setup the parameter objects */
 
-        params[0]->integer.value = region_obj->region.space_id;
-        params[1]->integer.value = function;
-        params[2] = NULL;
-
-        info.node = region_obj2->extra.method_REG;
-        info.parameters = params;
-        info.parameter_type = ACPI_PARAM_ARGS;
+        args[0]->integer.value = region_obj->region.space_id;
+        args[1]->integer.value = function;
+        args[2] = NULL;
 
         /* Execute the method, no return value */
 
         ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
-                        (ACPI_TYPE_METHOD, info.node, NULL));
-        status = acpi_ns_evaluate_by_handle(&info);
+                        (ACPI_TYPE_METHOD, info->prefix_node, NULL));
 
-        acpi_ut_remove_reference(params[1]);
+        status = acpi_ns_evaluate(info);
+        acpi_ut_remove_reference(args[1]);
 
-      cleanup:
-        acpi_ut_remove_reference(params[0]);
+      cleanup2:
+        acpi_ut_remove_reference(args[0]);
 
+      cleanup1:
+        ACPI_FREE(info);
         return_ACPI_STATUS(status);
 }
 
@@ -261,7 +274,8 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
  *              Function            - Read or Write operation
  *              Address             - Where in the space to read or write
  *              bit_width           - Field width in bits (8, 16, 32, or 64)
- *              Value               - Pointer to in or out value
+ *              Value               - Pointer to in or out value, must be
+ *                                    full 64-bit acpi_integer
  *
  * RETURN:      Status
  *
@@ -274,7 +288,7 @@ acpi_status
 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
                                u32 function,
                                acpi_physical_address address,
-                               u32 bit_width, void *value)
+                               u32 bit_width, acpi_integer * value)
 {
         acpi_status status;
         acpi_status status2;
@@ -284,7 +298,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
         union acpi_operand_object *region_obj2;
         void *region_context = NULL;
 
-        ACPI_FUNCTION_TRACE("ev_address_space_dispatch");
+        ACPI_FUNCTION_TRACE(ev_address_space_dispatch);
 
         region_obj2 = acpi_ns_get_secondary_object(region_obj);
         if (!region_obj2) {
@@ -315,6 +329,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
                  */
                 region_setup = handler_desc->address_space.setup;
                 if (!region_setup) {
+
                         /* No initialization routine, exit with error */
 
                         ACPI_ERROR((AE_INFO,
@@ -361,9 +376,10 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
                         region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE;
 
                         if (region_obj2->extra.region_context) {
+
                                 /* The handler for this region was already installed */
 
-                                ACPI_MEM_FREE(region_context);
+                                ACPI_FREE(region_context);
                         } else {
                                 /*
                                  * Save the returned context for use in all accesses to
@@ -386,9 +402,8 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
                           acpi_ut_get_region_name(region_obj->region.
                                                   space_id)));
 
-        if (!
-            (handler_desc->address_space.
-             hflags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
+        if (!(handler_desc->address_space.handler_flags &
+              ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
                 /*
                  * For handlers other than the default (supplied) handlers, we must
                  * exit the interpreter because the handler *might* block -- we don't
@@ -409,9 +424,8 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
                                                         space_id)));
         }
 
-        if (!
-            (handler_desc->address_space.
-             hflags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
+        if (!(handler_desc->address_space.handler_flags &
+              ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
                 /*
                  * We just returned from a non-default handler, we must re-enter the
                  * interpreter
@@ -451,7 +465,7 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj,
         union acpi_operand_object *region_obj2;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_detach_region");
+        ACPI_FUNCTION_TRACE(ev_detach_region);
 
         region_obj2 = acpi_ns_get_secondary_object(region_obj);
         if (!region_obj2) {
@@ -463,6 +477,7 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj,
 
         handler_obj = region_obj->region.handler;
         if (!handler_obj) {
+
                 /* This region has no handler, all done */
 
                 return_VOID;
@@ -474,6 +489,7 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj,
         last_obj_ptr = &handler_obj->address_space.region_list;
 
         while (obj_desc) {
+
                 /* Is this the correct Region? */
 
                 if (obj_desc == region_obj) {
@@ -583,7 +599,7 @@ acpi_ev_attach_region(union acpi_operand_object *handler_obj,
                       u8 acpi_ns_is_locked)
 {
 
-        ACPI_FUNCTION_TRACE("ev_attach_region");
+        ACPI_FUNCTION_TRACE(ev_attach_region);
 
         ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
                           "Adding Region [%4.4s] %p to address handler %p [%s]\n",
@@ -636,7 +652,7 @@ acpi_ev_install_handler(acpi_handle obj_handle,
         struct acpi_namespace_node *node;
         acpi_status status;
 
-        ACPI_FUNCTION_NAME("ev_install_handler");
+        ACPI_FUNCTION_NAME(ev_install_handler);
 
         handler_obj = (union acpi_operand_object *)context;
 
@@ -666,6 +682,7 @@ acpi_ev_install_handler(acpi_handle obj_handle,
 
         obj_desc = acpi_ns_get_attached_object(node);
         if (!obj_desc) {
+
                 /* No object, just exit */
 
                 return (AE_OK);
@@ -674,10 +691,12 @@ acpi_ev_install_handler(acpi_handle obj_handle,
         /* Devices are handled different than regions */
 
         if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_DEVICE) {
+
                 /* Check if this Device already has a handler for this address space */
 
                 next_handler_obj = obj_desc->device.handler;
                 while (next_handler_obj) {
+
                         /* Found a handler, is it for the same address space? */
 
                         if (next_handler_obj->address_space.space_id ==
@@ -764,9 +783,9 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node,
         union acpi_operand_object *handler_obj;
         acpi_status status;
         acpi_object_type type;
-        u16 flags = 0;
+        u8 flags = 0;
 
-        ACPI_FUNCTION_TRACE("ev_install_space_handler");
+        ACPI_FUNCTION_TRACE(ev_install_space_handler);
 
         /*
          * This registration is valid for only the types below
@@ -839,6 +858,7 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node,
                 /* Walk the handler list for this device */
 
                 while (handler_obj) {
+
                         /* Same space_id indicates a handler already installed */
 
                         if (handler_obj->address_space.space_id == space_id) {
@@ -921,7 +941,7 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node,
         /* Init handler obj */
 
         handler_obj->address_space.space_id = (u8) space_id;
-        handler_obj->address_space.hflags = flags;
+        handler_obj->address_space.handler_flags = flags;
         handler_obj->address_space.region_list = NULL;
         handler_obj->address_space.node = node;
         handler_obj->address_space.handler = handler;
@@ -979,7 +999,7 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_execute_reg_methods");
+        ACPI_FUNCTION_TRACE(ev_execute_reg_methods);
 
         /*
          * Run all _REG methods for all Operation Regions for this
@@ -1001,7 +1021,7 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
  *
  * PARAMETERS:  walk_namespace callback
  *
- * DESCRIPTION: Run _REg method for region objects of the requested space_iD
+ * DESCRIPTION: Run _REG method for region objects of the requested space_iD
  *
  ******************************************************************************/
 
@@ -1035,6 +1055,7 @@ acpi_ev_reg_run(acpi_handle obj_handle,
 
         obj_desc = acpi_ns_get_attached_object(node);
         if (!obj_desc) {
+
                 /* No object, just exit */
 
                 return (AE_OK);
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index baed8c1a1b9f..5b3c7a85eb9a 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -71,11 +71,22 @@ acpi_ev_system_memory_region_setup(acpi_handle handle,
             (union acpi_operand_object *)handle;
         struct acpi_mem_space_context *local_region_context;
 
-        ACPI_FUNCTION_TRACE("ev_system_memory_region_setup");
+        ACPI_FUNCTION_TRACE(ev_system_memory_region_setup);
 
         if (function == ACPI_REGION_DEACTIVATE) {
                 if (*region_context) {
-                        ACPI_MEM_FREE(*region_context);
+                        local_region_context =
+                            (struct acpi_mem_space_context *)*region_context;
+
+                        /* Delete a cached mapping if present */
+
+                        if (local_region_context->mapped_length) {
+                                acpi_os_unmap_memory(local_region_context->
+                                                     mapped_logical_address,
+                                                     local_region_context->
+                                                     mapped_length);
+                        }
+                        ACPI_FREE(local_region_context);
                         *region_context = NULL;
                 }
                 return_ACPI_STATUS(AE_OK);
@@ -84,7 +95,7 @@ acpi_ev_system_memory_region_setup(acpi_handle handle,
         /* Create a new context */
 
         local_region_context =
-            ACPI_MEM_CALLOCATE(sizeof(struct acpi_mem_space_context));
+            ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_mem_space_context));
         if (!(local_region_context)) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
@@ -118,7 +129,7 @@ acpi_ev_io_space_region_setup(acpi_handle handle,
                               u32 function,
                               void *handler_context, void **region_context)
 {
-        ACPI_FUNCTION_TRACE("ev_io_space_region_setup");
+        ACPI_FUNCTION_TRACE(ev_io_space_region_setup);
 
         if (function == ACPI_REGION_DEACTIVATE) {
                 *region_context = NULL;
@@ -161,7 +172,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
             (union acpi_operand_object *)handle;
         struct acpi_device_id object_hID;
 
-        ACPI_FUNCTION_TRACE("ev_pci_config_region_setup");
+        ACPI_FUNCTION_TRACE(ev_pci_config_region_setup);
 
         handler_obj = region_obj->region.handler;
         if (!handler_obj) {
@@ -178,7 +189,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
         *region_context = NULL;
         if (function == ACPI_REGION_DEACTIVATE) {
                 if (pci_id) {
-                        ACPI_MEM_FREE(pci_id);
+                        ACPI_FREE(pci_id);
                 }
                 return_ACPI_STATUS(status);
         }
@@ -199,6 +210,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
          * handlers with that device.
          */
         if (handler_obj->address_space.node == acpi_gbl_root_node) {
+
                 /* Start search from the parent object */
 
                 pci_root_node = parent_node;
@@ -220,6 +232,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
                                         PCI_EXPRESS_ROOT_HID_STRING,
                                         sizeof(PCI_EXPRESS_ROOT_HID_STRING)))))
                                 {
+
                                         /* Install a handler for this PCI root bridge */
 
                                         status =
@@ -235,7 +248,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
                                                 } else {
                                                         ACPI_EXCEPTION((AE_INFO,
                                                                         status,
-                                                                        "Could not install pci_config handler for Root Bridge %4.4s",
+                                                                        "Could not install PciConfig handler for Root Bridge %4.4s",
                                                                         acpi_ut_get_node_name
                                                                         (pci_root_node)));
                                                 }
@@ -262,7 +275,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
 
         /* Region is still not initialized. Create a new context */
 
-        pci_id = ACPI_MEM_CALLOCATE(sizeof(struct acpi_pci_id));
+        pci_id = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pci_id));
         if (!pci_id) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
@@ -337,7 +350,7 @@ acpi_ev_pci_bar_region_setup(acpi_handle handle,
                              u32 function,
                              void *handler_context, void **region_context)
 {
-        ACPI_FUNCTION_TRACE("ev_pci_bar_region_setup");
+        ACPI_FUNCTION_TRACE(ev_pci_bar_region_setup);
 
         return_ACPI_STATUS(AE_OK);
 }
@@ -364,7 +377,7 @@ acpi_ev_cmos_region_setup(acpi_handle handle,
                           u32 function,
                           void *handler_context, void **region_context)
 {
-        ACPI_FUNCTION_TRACE("ev_cmos_region_setup");
+        ACPI_FUNCTION_TRACE(ev_cmos_region_setup);
 
         return_ACPI_STATUS(AE_OK);
 }
@@ -389,7 +402,7 @@ acpi_ev_default_region_setup(acpi_handle handle,
                              u32 function,
                              void *handler_context, void **region_context)
 {
-        ACPI_FUNCTION_TRACE("ev_default_region_setup");
+        ACPI_FUNCTION_TRACE(ev_default_region_setup);
 
         if (function == ACPI_REGION_DEACTIVATE) {
                 *region_context = NULL;
@@ -435,7 +448,7 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
         acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
         union acpi_operand_object *region_obj2;
 
-        ACPI_FUNCTION_TRACE_U32("ev_initialize_region", acpi_ns_locked);
+        ACPI_FUNCTION_TRACE_U32(ev_initialize_region, acpi_ns_locked);
 
         if (!region_obj) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -462,8 +475,9 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
 
         /* Find any "_REG" method associated with this region definition */
 
-        status = acpi_ns_search_node(*reg_name_ptr, node,
-                                     ACPI_TYPE_METHOD, &method_node);
+        status =
+            acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD,
+                                     &method_node);
         if (ACPI_SUCCESS(status)) {
                 /*
                  * The _REG method is optional and there can be only one per region
@@ -478,11 +492,13 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
          * ie: acpi_gbl_root_node->parent_entry being set to NULL
          */
         while (node) {
+
                 /* Check to see if a handler exists */
 
                 handler_obj = NULL;
                 obj_desc = acpi_ns_get_attached_object(node);
                 if (obj_desc) {
+
                         /* Can only be a handler if the object exists */
 
                         switch (node->type) {
@@ -507,10 +523,12 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
                         }
 
                         while (handler_obj) {
+
                                 /* Is this handler of the correct type? */
 
                                 if (handler_obj->address_space.space_id ==
                                     space_id) {
+
                                         /* Found correct handler */
 
                                         ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
@@ -571,7 +589,7 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
         /* If we get here, there is no handler for this region */
 
         ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
-                          "No handler for region_type %s(%X) (region_obj %p)\n",
+                          "No handler for RegionType %s(%X) (RegionObj %p)\n",
                           acpi_ut_get_region_name(space_id), space_id,
                           region_obj));
 
diff --git a/drivers/acpi/events/evsci.c b/drivers/acpi/events/evsci.c
index 9a622169008a..8106215ad554 100644
--- a/drivers/acpi/events/evsci.c
+++ b/drivers/acpi/events/evsci.c
@@ -69,7 +69,7 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context)
         struct acpi_gpe_xrupt_info *gpe_xrupt_list = context;
         u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED;
 
-        ACPI_FUNCTION_TRACE("ev_sci_xrupt_handler");
+        ACPI_FUNCTION_TRACE(ev_sci_xrupt_handler);
 
         /*
          * We are guaranteed by the ACPI CA initialization/shutdown code that
@@ -108,7 +108,7 @@ u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context)
         struct acpi_gpe_xrupt_info *gpe_xrupt_list = context;
         u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED;
 
-        ACPI_FUNCTION_TRACE("ev_gpe_xrupt_handler");
+        ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler);
 
         /*
          * We are guaranteed by the ACPI CA initialization/shutdown code that
@@ -140,7 +140,7 @@ u32 acpi_ev_install_sci_handler(void)
 {
         u32 status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ev_install_sci_handler");
+        ACPI_FUNCTION_TRACE(ev_install_sci_handler);
 
         status = acpi_os_install_interrupt_handler((u32) acpi_gbl_FADT->sci_int,
                                                    acpi_ev_sci_xrupt_handler,
@@ -171,7 +171,7 @@ acpi_status acpi_ev_remove_sci_handler(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ev_remove_sci_handler");
+        ACPI_FUNCTION_TRACE(ev_remove_sci_handler);
 
         /* Just let the OS remove the handler and disable the level */
 
diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c
index b38b39dde543..76c34a66e0e0 100644
--- a/drivers/acpi/events/evxface.c
+++ b/drivers/acpi/events/evxface.c
@@ -41,8 +41,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 #include <acpi/acevents.h>
@@ -68,7 +66,7 @@ acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_install_exception_handler");
+        ACPI_FUNCTION_TRACE(acpi_install_exception_handler);
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
         if (ACPI_FAILURE(status)) {
@@ -90,6 +88,8 @@ acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
         (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
         return_ACPI_STATUS(status);
 }
+
+ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
 #endif                          /*  ACPI_FUTURE_USAGE  */
 
 /*******************************************************************************
@@ -107,14 +107,13 @@ acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
  *              event.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_install_fixed_event_handler(u32 event,
                                  acpi_event_handler handler, void *context)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_install_fixed_event_handler");
+        ACPI_FUNCTION_TRACE(acpi_install_fixed_event_handler);
 
         /* Parameter validation */
 
@@ -161,7 +160,7 @@ acpi_install_fixed_event_handler(u32 event,
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_install_fixed_event_handler);
+ACPI_EXPORT_SYMBOL(acpi_install_fixed_event_handler)
 
 /*******************************************************************************
  *
@@ -175,13 +174,12 @@ EXPORT_SYMBOL(acpi_install_fixed_event_handler);
  * DESCRIPTION: Disables the event and unregisters the event handler.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("acpi_remove_fixed_event_handler");
+        ACPI_FUNCTION_TRACE(acpi_remove_fixed_event_handler);
 
         /* Parameter validation */
 
@@ -216,7 +214,7 @@ acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_remove_fixed_event_handler);
+ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler)
 
 /*******************************************************************************
  *
@@ -235,7 +233,6 @@ EXPORT_SYMBOL(acpi_remove_fixed_event_handler);
  * DESCRIPTION: Install a handler for notifies on an ACPI device
  *
  ******************************************************************************/
-
 acpi_status
 acpi_install_notify_handler(acpi_handle device,
                             u32 handler_type,
@@ -246,7 +243,7 @@ acpi_install_notify_handler(acpi_handle device,
         struct acpi_namespace_node *node;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_install_notify_handler");
+        ACPI_FUNCTION_TRACE(acpi_install_notify_handler);
 
         /* Parameter validation */
 
@@ -275,6 +272,7 @@ acpi_install_notify_handler(acpi_handle device,
          * only one <external> global handler can be regsitered (per notify type).
          */
         if (device == ACPI_ROOT_OBJECT) {
+
                 /* Make sure the handler is not already installed */
 
                 if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
@@ -317,6 +315,7 @@ acpi_install_notify_handler(acpi_handle device,
 
                 obj_desc = acpi_ns_get_attached_object(node);
                 if (obj_desc) {
+
                         /* Object exists - make sure there's no handler */
 
                         if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
@@ -370,6 +369,7 @@ acpi_install_notify_handler(acpi_handle device,
                 }
 
                 if (handler_type == ACPI_ALL_NOTIFY) {
+
                         /* Extra ref if installed in both */
 
                         acpi_ut_add_reference(notify_obj);
@@ -381,7 +381,7 @@ acpi_install_notify_handler(acpi_handle device,
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_install_notify_handler);
+ACPI_EXPORT_SYMBOL(acpi_install_notify_handler)
 
 /*******************************************************************************
  *
@@ -399,7 +399,6 @@ EXPORT_SYMBOL(acpi_install_notify_handler);
  * DESCRIPTION: Remove a handler for notifies on an ACPI device
  *
  ******************************************************************************/
-
 acpi_status
 acpi_remove_notify_handler(acpi_handle device,
                            u32 handler_type, acpi_notify_handler handler)
@@ -409,7 +408,7 @@ acpi_remove_notify_handler(acpi_handle device,
         struct acpi_namespace_node *node;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_remove_notify_handler");
+        ACPI_FUNCTION_TRACE(acpi_remove_notify_handler);
 
         /* Parameter validation */
 
@@ -535,7 +534,7 @@ acpi_remove_notify_handler(acpi_handle device,
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_remove_notify_handler);
+ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler)
 
 /*******************************************************************************
  *
@@ -554,7 +553,6 @@ EXPORT_SYMBOL(acpi_remove_notify_handler);
  * DESCRIPTION: Install a handler for a General Purpose Event.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_install_gpe_handler(acpi_handle gpe_device,
                          u32 gpe_number,
@@ -565,7 +563,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
         acpi_status status;
         acpi_cpu_flags flags;
 
-        ACPI_FUNCTION_TRACE("acpi_install_gpe_handler");
+        ACPI_FUNCTION_TRACE(acpi_install_gpe_handler);
 
         /* Parameter validation */
 
@@ -596,7 +594,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
 
         /* Allocate and init handler object */
 
-        handler = ACPI_MEM_CALLOCATE(sizeof(struct acpi_handler_info));
+        handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_handler_info));
         if (!handler) {
                 status = AE_NO_MEMORY;
                 goto unlock_and_exit;
@@ -630,7 +628,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_install_gpe_handler);
+ACPI_EXPORT_SYMBOL(acpi_install_gpe_handler)
 
 /*******************************************************************************
  *
@@ -646,7 +644,6 @@ EXPORT_SYMBOL(acpi_install_gpe_handler);
  * DESCRIPTION: Remove a handler for a General Purpose acpi_event.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_remove_gpe_handler(acpi_handle gpe_device,
                         u32 gpe_number, acpi_event_handler address)
@@ -656,7 +653,7 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
         acpi_status status;
         acpi_cpu_flags flags;
 
-        ACPI_FUNCTION_TRACE("acpi_remove_gpe_handler");
+        ACPI_FUNCTION_TRACE(acpi_remove_gpe_handler);
 
         /* Parameter validation */
 
@@ -724,14 +721,14 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
 
         /* Now we can free the handler object */
 
-        ACPI_MEM_FREE(handler);
+        ACPI_FREE(handler);
 
       unlock_and_exit:
         (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_remove_gpe_handler);
+ACPI_EXPORT_SYMBOL(acpi_remove_gpe_handler)
 
 /*******************************************************************************
  *
@@ -746,7 +743,6 @@ EXPORT_SYMBOL(acpi_remove_gpe_handler);
  * DESCRIPTION: Acquire the ACPI Global Lock
  *
  ******************************************************************************/
-
 acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
 {
         acpi_status status;
@@ -771,7 +767,7 @@ acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
         return (status);
 }
 
-EXPORT_SYMBOL(acpi_acquire_global_lock);
+ACPI_EXPORT_SYMBOL(acpi_acquire_global_lock)
 
 /*******************************************************************************
  *
@@ -784,7 +780,6 @@ EXPORT_SYMBOL(acpi_acquire_global_lock);
  * DESCRIPTION: Release the ACPI Global Lock. The handle must be valid.
  *
  ******************************************************************************/
-
 acpi_status acpi_release_global_lock(u32 handle)
 {
         acpi_status status;
@@ -797,4 +792,4 @@ acpi_status acpi_release_global_lock(u32 handle)
         return (status);
 }
 
-EXPORT_SYMBOL(acpi_release_global_lock);
+ACPI_EXPORT_SYMBOL(acpi_release_global_lock)
diff --git a/drivers/acpi/events/evxfevnt.c b/drivers/acpi/events/evxfevnt.c
index ec9ce8429f15..7ebc2efac936 100644
--- a/drivers/acpi/events/evxfevnt.c
+++ b/drivers/acpi/events/evxfevnt.c
@@ -41,8 +41,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acevents.h>
 #include <acpi/acnamesp.h>
@@ -65,7 +63,7 @@ acpi_status acpi_enable(void)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("acpi_enable");
+        ACPI_FUNCTION_TRACE(acpi_enable);
 
         /* Make sure we have the FADT */
 
@@ -94,6 +92,8 @@ acpi_status acpi_enable(void)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_enable)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_disable
@@ -105,12 +105,11 @@ acpi_status acpi_enable(void)
  * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode.
  *
  ******************************************************************************/
-
 acpi_status acpi_disable(void)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("acpi_disable");
+        ACPI_FUNCTION_TRACE(acpi_disable);
 
         if (!acpi_gbl_FADT) {
                 ACPI_WARNING((AE_INFO, "No FADT information present!"));
@@ -137,6 +136,8 @@ acpi_status acpi_disable(void)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_disable)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enable_event
@@ -149,13 +150,12 @@ acpi_status acpi_disable(void)
  * DESCRIPTION: Enable an ACPI event (fixed)
  *
  ******************************************************************************/
-
 acpi_status acpi_enable_event(u32 event, u32 flags)
 {
         acpi_status status = AE_OK;
         u32 value;
 
-        ACPI_FUNCTION_TRACE("acpi_enable_event");
+        ACPI_FUNCTION_TRACE(acpi_enable_event);
 
         /* Decode the Fixed Event */
 
@@ -193,7 +193,7 @@ acpi_status acpi_enable_event(u32 event, u32 flags)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_enable_event);
+ACPI_EXPORT_SYMBOL(acpi_enable_event)
 
 /*******************************************************************************
  *
@@ -208,13 +208,12 @@ EXPORT_SYMBOL(acpi_enable_event);
  * DESCRIPTION: Set the type of an individual GPE
  *
  ******************************************************************************/
-
 acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type)
 {
         acpi_status status = AE_OK;
         struct acpi_gpe_event_info *gpe_event_info;
 
-        ACPI_FUNCTION_TRACE("acpi_set_gpe_type");
+        ACPI_FUNCTION_TRACE(acpi_set_gpe_type);
 
         /* Ensure that we have a valid GPE number */
 
@@ -236,7 +235,7 @@ acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_set_gpe_type);
+ACPI_EXPORT_SYMBOL(acpi_set_gpe_type)
 
 /*******************************************************************************
  *
@@ -252,13 +251,12 @@ EXPORT_SYMBOL(acpi_set_gpe_type);
  * DESCRIPTION: Enable an ACPI event (general purpose)
  *
  ******************************************************************************/
-
 acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
 {
         acpi_status status = AE_OK;
         struct acpi_gpe_event_info *gpe_event_info;
 
-        ACPI_FUNCTION_TRACE("acpi_enable_gpe");
+        ACPI_FUNCTION_TRACE(acpi_enable_gpe);
 
         /* Use semaphore lock if not executing at interrupt level */
 
@@ -288,7 +286,7 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_enable_gpe);
+ACPI_EXPORT_SYMBOL(acpi_enable_gpe)
 
 /*******************************************************************************
  *
@@ -304,13 +302,12 @@ EXPORT_SYMBOL(acpi_enable_gpe);
  * DESCRIPTION: Disable an ACPI event (general purpose)
  *
  ******************************************************************************/
-
 acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
 {
         acpi_status status = AE_OK;
         struct acpi_gpe_event_info *gpe_event_info;
 
-        ACPI_FUNCTION_TRACE("acpi_disable_gpe");
+        ACPI_FUNCTION_TRACE(acpi_disable_gpe);
 
         /* Use semaphore lock if not executing at interrupt level */
 
@@ -338,6 +335,8 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_disable_gpe)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_disable_event
@@ -350,13 +349,12 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
  * DESCRIPTION: Disable an ACPI event (fixed)
  *
  ******************************************************************************/
-
 acpi_status acpi_disable_event(u32 event, u32 flags)
 {
         acpi_status status = AE_OK;
         u32 value;
 
-        ACPI_FUNCTION_TRACE("acpi_disable_event");
+        ACPI_FUNCTION_TRACE(acpi_disable_event);
 
         /* Decode the Fixed Event */
 
@@ -392,7 +390,7 @@ acpi_status acpi_disable_event(u32 event, u32 flags)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_disable_event);
+ACPI_EXPORT_SYMBOL(acpi_disable_event)
 
 /*******************************************************************************
  *
@@ -405,12 +403,11 @@ EXPORT_SYMBOL(acpi_disable_event);
  * DESCRIPTION: Clear an ACPI event (fixed)
  *
  ******************************************************************************/
-
 acpi_status acpi_clear_event(u32 event)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("acpi_clear_event");
+        ACPI_FUNCTION_TRACE(acpi_clear_event);
 
         /* Decode the Fixed Event */
 
@@ -429,7 +426,7 @@ acpi_status acpi_clear_event(u32 event)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_clear_event);
+ACPI_EXPORT_SYMBOL(acpi_clear_event)
 
 /*******************************************************************************
  *
@@ -444,13 +441,12 @@ EXPORT_SYMBOL(acpi_clear_event);
  * DESCRIPTION: Clear an ACPI event (general purpose)
  *
  ******************************************************************************/
-
 acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
 {
         acpi_status status = AE_OK;
         struct acpi_gpe_event_info *gpe_event_info;
 
-        ACPI_FUNCTION_TRACE("acpi_clear_gpe");
+        ACPI_FUNCTION_TRACE(acpi_clear_gpe);
 
         /* Use semaphore lock if not executing at interrupt level */
 
@@ -478,6 +474,8 @@ acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
+
 #ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
@@ -492,12 +490,11 @@ acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
  * DESCRIPTION: Obtains and returns the current status of the event
  *
  ******************************************************************************/
-
 acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("acpi_get_event_status");
+        ACPI_FUNCTION_TRACE(acpi_get_event_status);
 
         if (!event_status) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -518,6 +515,8 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_get_event_status)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_gpe_status
@@ -533,7 +532,6 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
  * DESCRIPTION: Get status of an event (general purpose)
  *
  ******************************************************************************/
-
 acpi_status
 acpi_get_gpe_status(acpi_handle gpe_device,
                     u32 gpe_number, u32 flags, acpi_event_status * event_status)
@@ -541,7 +539,7 @@ acpi_get_gpe_status(acpi_handle gpe_device,
         acpi_status status = AE_OK;
         struct acpi_gpe_event_info *gpe_event_info;
 
-        ACPI_FUNCTION_TRACE("acpi_get_gpe_status");
+        ACPI_FUNCTION_TRACE(acpi_get_gpe_status);
 
         /* Use semaphore lock if not executing at interrupt level */
 
@@ -570,6 +568,8 @@ acpi_get_gpe_status(acpi_handle gpe_device,
         }
         return_ACPI_STATUS(status);
 }
+
+ACPI_EXPORT_SYMBOL(acpi_get_gpe_status)
 #endif                          /*  ACPI_FUTURE_USAGE  */
 
 /*******************************************************************************
@@ -586,7 +586,6 @@ acpi_get_gpe_status(acpi_handle gpe_device,
  * DESCRIPTION: Create and Install a block of GPE registers
  *
  ******************************************************************************/
-
 acpi_status
 acpi_install_gpe_block(acpi_handle gpe_device,
                        struct acpi_generic_address *gpe_block_address,
@@ -597,7 +596,7 @@ acpi_install_gpe_block(acpi_handle gpe_device,
         struct acpi_namespace_node *node;
         struct acpi_gpe_block_info *gpe_block;
 
-        ACPI_FUNCTION_TRACE("acpi_install_gpe_block");
+        ACPI_FUNCTION_TRACE(acpi_install_gpe_block);
 
         if ((!gpe_device) || (!gpe_block_address) || (!register_count)) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -636,6 +635,7 @@ acpi_install_gpe_block(acpi_handle gpe_device,
 
         obj_desc = acpi_ns_get_attached_object(node);
         if (!obj_desc) {
+
                 /* No object, create a new one */
 
                 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE);
@@ -665,7 +665,7 @@ acpi_install_gpe_block(acpi_handle gpe_device,
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_install_gpe_block);
+ACPI_EXPORT_SYMBOL(acpi_install_gpe_block)
 
 /*******************************************************************************
  *
@@ -678,14 +678,13 @@ EXPORT_SYMBOL(acpi_install_gpe_block);
  * DESCRIPTION: Remove a previously installed block of GPE registers
  *
  ******************************************************************************/
-
 acpi_status acpi_remove_gpe_block(acpi_handle gpe_device)
 {
         union acpi_operand_object *obj_desc;
         acpi_status status;
         struct acpi_namespace_node *node;
 
-        ACPI_FUNCTION_TRACE("acpi_remove_gpe_block");
+        ACPI_FUNCTION_TRACE(acpi_remove_gpe_block);
 
         if (!gpe_device) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -721,4 +720,4 @@ acpi_status acpi_remove_gpe_block(acpi_handle gpe_device)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_remove_gpe_block);
+ACPI_EXPORT_SYMBOL(acpi_remove_gpe_block)
diff --git a/drivers/acpi/events/evxfregn.c b/drivers/acpi/events/evxfregn.c
index abf5caca9ae5..e8b86a0baad0 100644
--- a/drivers/acpi/events/evxfregn.c
+++ b/drivers/acpi/events/evxfregn.c
@@ -42,8 +42,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 #include <acpi/acevents.h>
@@ -75,7 +73,7 @@ acpi_install_address_space_handler(acpi_handle device,
         struct acpi_namespace_node *node;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_install_address_space_handler");
+        ACPI_FUNCTION_TRACE(acpi_install_address_space_handler);
 
         /* Parameter validation */
 
@@ -114,7 +112,7 @@ acpi_install_address_space_handler(acpi_handle device,
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_install_address_space_handler);
+ACPI_EXPORT_SYMBOL(acpi_install_address_space_handler)
 
 /*******************************************************************************
  *
@@ -129,7 +127,6 @@ EXPORT_SYMBOL(acpi_install_address_space_handler);
  * DESCRIPTION: Remove a previously installed handler.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_remove_address_space_handler(acpi_handle device,
                                   acpi_adr_space_type space_id,
@@ -142,7 +139,7 @@ acpi_remove_address_space_handler(acpi_handle device,
         struct acpi_namespace_node *node;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_remove_address_space_handler");
+        ACPI_FUNCTION_TRACE(acpi_remove_address_space_handler);
 
         /* Parameter validation */
 
@@ -176,9 +173,11 @@ acpi_remove_address_space_handler(acpi_handle device,
         handler_obj = obj_desc->device.handler;
         last_obj_ptr = &obj_desc->device.handler;
         while (handler_obj) {
+
                 /* We have a handler, see if user requested this one */
 
                 if (handler_obj->address_space.space_id == space_id) {
+
                         /* Matched space_id, first dereference this in the Regions */
 
                         ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
@@ -229,7 +228,7 @@ acpi_remove_address_space_handler(acpi_handle device,
         /* The handler does not exist */
 
         ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
-                          "Unable to remove address handler %p for %s(%X), dev_node %p, obj %p\n",
+                          "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n",
                           handler, acpi_ut_get_region_name(space_id), space_id,
                           node, obj_desc));
 
@@ -240,4 +239,4 @@ acpi_remove_address_space_handler(acpi_handle device,
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_remove_address_space_handler);
+ACPI_EXPORT_SYMBOL(acpi_remove_address_space_handler)
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index a29782fe3ecf..823352435e08 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -82,7 +82,7 @@ acpi_ex_add_table(struct acpi_table_header *table,
         struct acpi_table_desc table_info;
         union acpi_operand_object *obj_desc;
 
-        ACPI_FUNCTION_TRACE("ex_add_table");
+        ACPI_FUNCTION_TRACE(ex_add_table);
 
         /* Create an object to be the table handle */
 
@@ -100,7 +100,7 @@ acpi_ex_add_table(struct acpi_table_header *table,
 
         ACPI_MEMSET(&table_info, 0, sizeof(struct acpi_table_desc));
 
-        table_info.type = ACPI_TABLE_SSDT;
+        table_info.type = ACPI_TABLE_ID_SSDT;
         table_info.pointer = table;
         table_info.length = (acpi_size) table->length;
         table_info.allocation = ACPI_MEM_ALLOCATED;
@@ -110,6 +110,7 @@ acpi_ex_add_table(struct acpi_table_header *table,
 
         if (ACPI_FAILURE(status)) {
                 if (status == AE_ALREADY_EXISTS) {
+
                         /* Table already exists, just return the handle */
 
                         return_ACPI_STATUS(AE_OK);
@@ -121,6 +122,7 @@ acpi_ex_add_table(struct acpi_table_header *table,
 
         status = acpi_ns_load_table(table_info.installed_desc, parent_node);
         if (ACPI_FAILURE(status)) {
+
                 /* Uninstall table on error */
 
                 (void)acpi_tb_uninstall_table(table_info.installed_desc);
@@ -160,7 +162,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
         struct acpi_namespace_node *parameter_node = NULL;
         union acpi_operand_object *ddb_handle;
 
-        ACPI_FUNCTION_TRACE("ex_load_table_op");
+        ACPI_FUNCTION_TRACE(ex_load_table_op);
 
 #if 0
         /*
@@ -169,6 +171,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
          */
         status = acpi_tb_match_signature(operand[0]->string.pointer, NULL);
         if (status == AE_OK) {
+
                 /* Signature matched -- don't allow override */
 
                 return_ACPI_STATUS(AE_ALREADY_EXISTS);
@@ -211,9 +214,8 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
                  * location within the namespace where the table will be loaded.
                  */
                 status =
-                    acpi_ns_get_node_by_path(operand[3]->string.pointer,
-                                             start_node, ACPI_NS_SEARCH_PARENT,
-                                             &parent_node);
+                    acpi_ns_get_node(start_node, operand[3]->string.pointer,
+                                     ACPI_NS_SEARCH_PARENT, &parent_node);
                 if (ACPI_FAILURE(status)) {
                         return_ACPI_STATUS(status);
                 }
@@ -234,9 +236,8 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
                 /* Find the node referenced by the parameter_path_string */
 
                 status =
-                    acpi_ns_get_node_by_path(operand[4]->string.pointer,
-                                             start_node, ACPI_NS_SEARCH_PARENT,
-                                             &parameter_node);
+                    acpi_ns_get_node(start_node, operand[4]->string.pointer,
+                                     ACPI_NS_SEARCH_PARENT, &parameter_node);
                 if (ACPI_FAILURE(status)) {
                         return_ACPI_STATUS(status);
                 }
@@ -252,6 +253,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
         /* Parameter Data (optional) */
 
         if (parameter_node) {
+
                 /* Store the parameter data into the optional parameter object */
 
                 status = acpi_ex_store(operand[5],
@@ -294,9 +296,10 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
         struct acpi_table_header *table_ptr = NULL;
         acpi_physical_address address;
         struct acpi_table_header table_header;
+        acpi_integer temp;
         u32 i;
 
-        ACPI_FUNCTION_TRACE("ex_load_op");
+        ACPI_FUNCTION_TRACE(ex_load_op);
 
         /* Object can be either an op_region or a Field */
 
@@ -322,7 +325,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
                 address = obj_desc->region.address;
 
-                /* Get the table length from the table header */
+                /* Get part of the table header to get the table length */
 
                 table_header.length = 0;
                 for (i = 0; i < 8; i++) {
@@ -330,11 +333,14 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
                             acpi_ev_address_space_dispatch(obj_desc, ACPI_READ,
                                                            (acpi_physical_address)
                                                            (i + address), 8,
-                                                           ((u8 *) &
-                                                            table_header) + i);
+                                                           &temp);
                         if (ACPI_FAILURE(status)) {
                                 return_ACPI_STATUS(status);
                         }
+
+                        /* Get the one valid byte of the returned 64-bit value */
+
+                        ACPI_CAST_PTR(u8, &table_header)[i] = (u8) temp;
                 }
 
                 /* Sanity check the table length */
@@ -345,7 +351,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
                 /* Allocate a buffer for the entire table */
 
-                table_ptr = ACPI_MEM_ALLOCATE(table_header.length);
+                table_ptr = ACPI_ALLOCATE(table_header.length);
                 if (!table_ptr) {
                         return_ACPI_STATUS(AE_NO_MEMORY);
                 }
@@ -357,11 +363,14 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
                             acpi_ev_address_space_dispatch(obj_desc, ACPI_READ,
                                                            (acpi_physical_address)
                                                            (i + address), 8,
-                                                           ((u8 *) table_ptr +
-                                                            i));
+                                                           &temp);
                         if (ACPI_FAILURE(status)) {
                                 goto cleanup;
                         }
+
+                        /* Get the one valid byte of the returned 64-bit value */
+
+                        ACPI_CAST_PTR(u8, table_ptr)[i] = (u8) temp;
                 }
                 break;
 
@@ -407,12 +416,8 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
         /* The table must be either an SSDT or a PSDT */
 
-        if ((!ACPI_STRNCMP(table_ptr->signature,
-                           acpi_gbl_table_data[ACPI_TABLE_PSDT].signature,
-                           acpi_gbl_table_data[ACPI_TABLE_PSDT].sig_length)) &&
-            (!ACPI_STRNCMP(table_ptr->signature,
-                           acpi_gbl_table_data[ACPI_TABLE_SSDT].signature,
-                           acpi_gbl_table_data[ACPI_TABLE_SSDT].sig_length))) {
+        if ((!ACPI_COMPARE_NAME(table_ptr->signature, PSDT_SIG)) &&
+            (!ACPI_COMPARE_NAME(table_ptr->signature, SSDT_SIG))) {
                 ACPI_ERROR((AE_INFO,
                             "Table has invalid signature [%4.4s], must be SSDT or PSDT",
                             table_ptr->signature));
@@ -424,6 +429,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
         status = acpi_ex_add_table(table_ptr, acpi_gbl_root_node, &ddb_handle);
         if (ACPI_FAILURE(status)) {
+
                 /* On error, table_ptr was deallocated above */
 
                 return_ACPI_STATUS(status);
@@ -442,7 +448,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
       cleanup:
         if (ACPI_FAILURE(status)) {
-                ACPI_MEM_FREE(table_ptr);
+                ACPI_FREE(table_ptr);
         }
         return_ACPI_STATUS(status);
 }
@@ -465,7 +471,7 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
         union acpi_operand_object *table_desc = ddb_handle;
         struct acpi_table_desc *table_info;
 
-        ACPI_FUNCTION_TRACE("ex_unload_table");
+        ACPI_FUNCTION_TRACE(ex_unload_table);
 
         /*
          * Validate the handle
diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c
index e6d52e12d77a..b732e399b1ef 100644
--- a/drivers/acpi/executer/exconvrt.c
+++ b/drivers/acpi/executer/exconvrt.c
@@ -79,7 +79,7 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
         u32 count;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_convert_to_integer", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc);
 
         switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
         case ACPI_TYPE_INTEGER:
@@ -199,7 +199,7 @@ acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
         union acpi_operand_object *return_desc;
         u8 *new_buf;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_convert_to_buffer", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_convert_to_buffer, obj_desc);
 
         switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
         case ACPI_TYPE_BUFFER:
@@ -319,6 +319,7 @@ acpi_ex_convert_to_ascii(acpi_integer integer,
                 remainder = 0;
 
                 for (i = decimal_length; i > 0; i--) {
+
                         /* Divide by nth factor of 10 */
 
                         digit = integer;
@@ -346,6 +347,7 @@ acpi_ex_convert_to_ascii(acpi_integer integer,
 
                 hex_length = (acpi_native_uint) ACPI_MUL_2(data_width);
                 for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) {
+
                         /* Get one hex digit, most significant digits first */
 
                         string[k] =
@@ -400,7 +402,7 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
         u16 base = 16;
         u8 separator = ',';
 
-        ACPI_FUNCTION_TRACE_PTR("ex_convert_to_string", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc);
 
         switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
         case ACPI_TYPE_STRING:
@@ -567,7 +569,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type,
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ex_convert_to_target_type");
+        ACPI_FUNCTION_TRACE(ex_convert_to_target_type);
 
         /* Default behavior */
 
@@ -657,7 +659,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type,
 
         default:
                 ACPI_ERROR((AE_INFO,
-                            "Unknown Target type ID 0x%X aml_opcode %X dest_type %s",
+                            "Unknown Target type ID 0x%X AmlOpcode %X DestType %s",
                             GET_CURRENT_ARG_TYPE(walk_state->op_info->
                                                  runtime_args),
                             walk_state->opcode,
diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c
index 680575402835..106dc7219df7 100644
--- a/drivers/acpi/executer/excreate.c
+++ b/drivers/acpi/executer/excreate.c
@@ -69,7 +69,7 @@ acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state)
         struct acpi_namespace_node *alias_node;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ex_create_alias");
+        ACPI_FUNCTION_TRACE(ex_create_alias);
 
         /* Get the source/alias operands (both namespace nodes) */
 
@@ -164,7 +164,7 @@ acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state)
         acpi_status status;
         union acpi_operand_object *obj_desc;
 
-        ACPI_FUNCTION_TRACE("ex_create_event");
+        ACPI_FUNCTION_TRACE(ex_create_event);
 
         obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT);
         if (!obj_desc) {
@@ -216,7 +216,7 @@ acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state)
         acpi_status status = AE_OK;
         union acpi_operand_object *obj_desc;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_create_mutex", ACPI_WALK_OPERANDS);
+        ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS);
 
         /* Create the new mutex object */
 
@@ -243,8 +243,9 @@ acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state)
         obj_desc->mutex.node =
             (struct acpi_namespace_node *)walk_state->operands[0];
 
-        status = acpi_ns_attach_object(obj_desc->mutex.node,
-                                       obj_desc, ACPI_TYPE_MUTEX);
+        status =
+            acpi_ns_attach_object(obj_desc->mutex.node, obj_desc,
+                                  ACPI_TYPE_MUTEX);
 
       cleanup:
         /*
@@ -280,7 +281,7 @@ acpi_ex_create_region(u8 * aml_start,
         struct acpi_namespace_node *node;
         union acpi_operand_object *region_obj2;
 
-        ACPI_FUNCTION_TRACE("ex_create_region");
+        ACPI_FUNCTION_TRACE(ex_create_region);
 
         /* Get the Namespace Node */
 
@@ -300,7 +301,7 @@ acpi_ex_create_region(u8 * aml_start,
          */
         if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) &&
             (region_space < ACPI_USER_REGION_BEGIN)) {
-                ACPI_ERROR((AE_INFO, "Invalid address_space type %X",
+                ACPI_ERROR((AE_INFO, "Invalid AddressSpace type %X",
                             region_space));
                 return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID);
         }
@@ -364,7 +365,7 @@ acpi_status acpi_ex_create_table_region(struct acpi_walk_state *walk_state)
         struct acpi_table_header *table;
         union acpi_operand_object *region_obj2;
 
-        ACPI_FUNCTION_TRACE("ex_create_table_region");
+        ACPI_FUNCTION_TRACE(ex_create_table_region);
 
         /* Get the Node from the object stack  */
 
@@ -452,7 +453,7 @@ acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state)
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_create_processor", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state);
 
         /* Create the processor object */
 
@@ -464,9 +465,9 @@ acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state)
         /* Initialize the processor object from the operands */
 
         obj_desc->processor.proc_id = (u8) operand[1]->integer.value;
+        obj_desc->processor.length = (u8) operand[3]->integer.value;
         obj_desc->processor.address =
             (acpi_io_address) operand[2]->integer.value;
-        obj_desc->processor.length = (u8) operand[3]->integer.value;
 
         /* Install the processor object in the parent Node */
 
@@ -499,7 +500,7 @@ acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state)
         acpi_status status;
         union acpi_operand_object *obj_desc;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_create_power_resource", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state);
 
         /* Create the power resource object */
 
@@ -549,7 +550,7 @@ acpi_ex_create_method(u8 * aml_start,
         acpi_status status;
         u8 method_flags;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_create_method", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state);
 
         /* Create a new method object */
 
diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c
index a7cca8d4f855..7b9718e976bf 100644
--- a/drivers/acpi/executer/exdump.c
+++ b/drivers/acpi/executer/exdump.c
@@ -61,6 +61,10 @@ static void acpi_ex_out_pointer(char *title, void *value);
 
 static void acpi_ex_out_address(char *title, acpi_physical_address value);
 
+static void
+acpi_ex_dump_object(union acpi_operand_object *obj_desc,
+                    struct acpi_exdump_info *info);
+
 static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc);
 
 static void
@@ -119,7 +123,7 @@ static struct acpi_exdump_info acpi_ex_dump_event[2] = {
 
 static struct acpi_exdump_info acpi_ex_dump_method[8] = {
         {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL},
-        {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "param_count"},
+        {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"},
         {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.concurrency), "Concurrency"},
         {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.semaphore), "Semaphore"},
         {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"},
@@ -263,12 +267,10 @@ static struct acpi_exdump_info acpi_ex_dump_field_common[7] = {
         {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(common_field.node), "Parent Node"}
 };
 
-static struct acpi_exdump_info acpi_ex_dump_node[6] = {
+static struct acpi_exdump_info acpi_ex_dump_node[5] = {
         {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(reference_count),
-         "Reference Count"},
         {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(child), "Child List"},
         {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(peer), "Next Peer"}
 };
@@ -330,7 +332,7 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc,
 
         if (!info) {
                 acpi_os_printf
-                    ("ex_dump_object: Display not implemented for object type %s\n",
+                    ("ExDumpObject: Display not implemented for object type %s\n",
                      acpi_ut_get_object_type_name(obj_desc));
                 return;
         }
@@ -454,7 +456,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
         u32 length;
         u32 index;
 
-        ACPI_FUNCTION_NAME("ex_dump_operand")
+        ACPI_FUNCTION_NAME(ex_dump_operand)
 
             if (!
                 ((ACPI_LV_EXEC & acpi_dbg_level)
@@ -463,6 +465,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
         }
 
         if (!obj_desc) {
+
                 /* This could be a null element of a package */
 
                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n"));
@@ -522,7 +525,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
 
                 case AML_REF_OF_OP:
 
-                        acpi_os_printf("Reference: (ref_of) %p\n",
+                        acpi_os_printf("Reference: (RefOf) %p\n",
                                        obj_desc->reference.object);
                         break;
 
@@ -532,6 +535,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
                                        obj_desc->reference.offset);
 
                         if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
                                 /* Value is an Integer */
 
                                 acpi_os_printf(" value is [%8.8X%8.8x]",
@@ -610,7 +614,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
 
         case ACPI_TYPE_PACKAGE:
 
-                acpi_os_printf("Package [Len %X] element_array %p\n",
+                acpi_os_printf("Package [Len %X] ElementArray %p\n",
                                obj_desc->package.count,
                                obj_desc->package.elements);
 
@@ -662,13 +666,13 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
 
         case ACPI_TYPE_LOCAL_BANK_FIELD:
 
-                acpi_os_printf("bank_field\n");
+                acpi_os_printf("BankField\n");
                 break;
 
         case ACPI_TYPE_LOCAL_REGION_FIELD:
 
                 acpi_os_printf
-                    ("region_field: Bits=%X acc_width=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n",
+                    ("RegionField: Bits=%X AccWidth=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n",
                      obj_desc->field.bit_length,
                      obj_desc->field.access_byte_width,
                      obj_desc->field.field_flags & AML_FIELD_LOCK_RULE_MASK,
@@ -681,12 +685,12 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
 
         case ACPI_TYPE_LOCAL_INDEX_FIELD:
 
-                acpi_os_printf("index_field\n");
+                acpi_os_printf("IndexField\n");
                 break;
 
         case ACPI_TYPE_BUFFER_FIELD:
 
-                acpi_os_printf("buffer_field: %X bits at byte %X bit %X of\n",
+                acpi_os_printf("BufferField: %X bits at byte %X bit %X of\n",
                                obj_desc->buffer_field.bit_length,
                                obj_desc->buffer_field.base_byte_offset,
                                obj_desc->buffer_field.start_field_bit_offset);
@@ -777,7 +781,7 @@ acpi_ex_dump_operands(union acpi_operand_object **operands,
 {
         acpi_native_uint i;
 
-        ACPI_FUNCTION_NAME("ex_dump_operands");
+        ACPI_FUNCTION_NAME(ex_dump_operands);
 
         if (!ident) {
                 ident = "?";
@@ -901,7 +905,7 @@ static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc)
                         acpi_os_printf("Could not convert name to pathname\n");
                 } else {
                         acpi_os_printf("%s\n", (char *)ret_buf.pointer);
-                        ACPI_MEM_FREE(ret_buf.pointer);
+                        ACPI_FREE(ret_buf.pointer);
                 }
         } else if (obj_desc->reference.object) {
                 acpi_os_printf("\nReferenced Object: %p\n",
@@ -1017,7 +1021,7 @@ acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc,
 void
 acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags)
 {
-        ACPI_FUNCTION_TRACE("ex_dump_object_descriptor");
+        ACPI_FUNCTION_TRACE(ex_dump_object_descriptor);
 
         if (!obj_desc) {
                 return_VOID;
@@ -1046,7 +1050,7 @@ acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags)
 
         if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) {
                 acpi_os_printf
-                    ("ex_dump_object_descriptor: %p is not an ACPI operand object: [%s]\n",
+                    ("ExDumpObjectDescriptor: %p is not an ACPI operand object: [%s]\n",
                      obj_desc, acpi_ut_get_descriptor_name(obj_desc));
                 return_VOID;
         }
diff --git a/drivers/acpi/executer/exfield.c b/drivers/acpi/executer/exfield.c
index e259201ce9a0..9ea9c3a67ca9 100644
--- a/drivers/acpi/executer/exfield.c
+++ b/drivers/acpi/executer/exfield.c
@@ -73,7 +73,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
         void *buffer;
         u8 locked;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_read_data_from_field", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc);
 
         /* Parameter validation */
 
@@ -142,6 +142,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
         length =
             (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length);
         if (length > acpi_gbl_integer_byte_width) {
+
                 /* Field is too large for an Integer, create a Buffer instead */
 
                 buffer_desc = acpi_ut_create_buffer_object(length);
@@ -163,11 +164,11 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
         }
 
         ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                          "field_read [TO]:  Obj %p, Type %X, Buf %p, byte_len %X\n",
+                          "FieldRead [TO]:   Obj %p, Type %X, Buf %p, ByteLen %X\n",
                           obj_desc, ACPI_GET_OBJECT_TYPE(obj_desc), buffer,
                           (u32) length));
         ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                          "field_read [FROM]: bit_len %X, bit_off %X, byte_off %X\n",
+                          "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n",
                           obj_desc->common_field.bit_length,
                           obj_desc->common_field.start_field_bit_offset,
                           obj_desc->common_field.base_byte_offset));
@@ -219,7 +220,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
         u8 locked;
         union acpi_operand_object *buffer_desc;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_write_data_to_field", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc);
 
         /* Parameter validation */
 
@@ -329,9 +330,10 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
             ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length);
 
         if (length < required_length) {
+
                 /* We need to create a new buffer */
 
-                new_buffer = ACPI_MEM_CALLOCATE(required_length);
+                new_buffer = ACPI_ALLOCATE_ZEROED(required_length);
                 if (!new_buffer) {
                         return_ACPI_STATUS(AE_NO_MEMORY);
                 }
@@ -347,14 +349,14 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
         }
 
         ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                          "field_write [FROM]: Obj %p (%s:%X), Buf %p, byte_len %X\n",
+                          "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n",
                           source_desc,
                           acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE
                                                 (source_desc)),
                           ACPI_GET_OBJECT_TYPE(source_desc), buffer, length));
 
         ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                          "field_write [TO]:  Obj %p (%s:%X), bit_len %X, bit_off %X, byte_off %X\n",
+                          "FieldWrite [TO]:   Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n",
                           obj_desc,
                           acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)),
                           ACPI_GET_OBJECT_TYPE(obj_desc),
@@ -375,7 +377,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
         /* Free temporary buffer if we used one */
 
         if (new_buffer) {
-                ACPI_MEM_FREE(new_buffer);
+                ACPI_FREE(new_buffer);
         }
 
         return_ACPI_STATUS(status);
diff --git a/drivers/acpi/executer/exfldio.c b/drivers/acpi/executer/exfldio.c
index bd1af35f7fcf..051053f7cccb 100644
--- a/drivers/acpi/executer/exfldio.c
+++ b/drivers/acpi/executer/exfldio.c
@@ -87,7 +87,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
         acpi_status status = AE_OK;
         union acpi_operand_object *rgn_desc;
 
-        ACPI_FUNCTION_TRACE_U32("ex_setup_region", field_datum_byte_offset);
+        ACPI_FUNCTION_TRACE_U32(ex_setup_region, field_datum_byte_offset);
 
         rgn_desc = obj_desc->common_field.region_obj;
 
@@ -112,7 +112,18 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
                 }
         }
 
+        /* Exit if Address/Length have been disallowed by the host OS */
+
+        if (rgn_desc->common.flags & AOPOBJ_INVALID) {
+                return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS);
+        }
+
+        /*
+         * Exit now for SMBus address space, it has a non-linear address space
+         * and the request cannot be directly validated
+         */
         if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) {
+
                 /* SMBus has a non-linear address space */
 
                 return_ACPI_STATUS(AE_OK);
@@ -134,10 +145,10 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
          * length of one field datum (access width) must fit within the region.
          * (Region length is specified in bytes)
          */
-        if (rgn_desc->region.length < (obj_desc->common_field.base_byte_offset +
-                                       field_datum_byte_offset +
-                                       obj_desc->common_field.
-                                       access_byte_width)) {
+        if (rgn_desc->region.length <
+            (obj_desc->common_field.base_byte_offset +
+             field_datum_byte_offset +
+             obj_desc->common_field.access_byte_width)) {
                 if (acpi_gbl_enable_interpreter_slack) {
                         /*
                          * Slack mode only:  We will go ahead and allow access to this
@@ -217,7 +228,7 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc,
         union acpi_operand_object *rgn_desc;
         acpi_physical_address address;
 
-        ACPI_FUNCTION_TRACE("ex_access_region");
+        ACPI_FUNCTION_TRACE(ex_access_region);
 
         /*
          * Ensure that the region operands are fully evaluated and verify
@@ -246,7 +257,7 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc,
         }
 
         ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD,
-                              " Region [%s:%X], Width %X, byte_base %X, Offset %X at %8.8X%8.8X\n",
+                              " Region [%s:%X], Width %X, ByteBase %X, Offset %X at %8.8X%8.8X\n",
                               acpi_ut_get_region_name(rgn_desc->region.
                                                       space_id),
                               rgn_desc->region.space_id,
@@ -352,7 +363,7 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
         acpi_status status;
         acpi_integer local_value;
 
-        ACPI_FUNCTION_TRACE_U32("ex_field_datum_io", field_datum_byte_offset);
+        ACPI_FUNCTION_TRACE_U32(ex_field_datum_io, field_datum_byte_offset);
 
         if (read_write == ACPI_READ) {
                 if (!value) {
@@ -487,10 +498,11 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
                 }
 
                 ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                                  "I/O to Data Register: value_ptr %p\n",
+                                  "I/O to Data Register: ValuePtr %p\n",
                                   value));
 
                 if (read_write == ACPI_READ) {
+
                         /* Read the datum from the data_register */
 
                         status =
@@ -559,7 +571,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
         acpi_integer merged_value;
         acpi_integer current_value;
 
-        ACPI_FUNCTION_TRACE_U32("ex_write_with_update_rule", mask);
+        ACPI_FUNCTION_TRACE_U32(ex_write_with_update_rule, mask);
 
         /* Start with the new bits  */
 
@@ -568,6 +580,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
         /* If the mask is all ones, we don't need to worry about the update rule */
 
         if (mask != ACPI_INTEGER_MAX) {
+
                 /* Decode the update rule */
 
                 switch (obj_desc->common_field.
@@ -614,7 +627,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
                 default:
 
                         ACPI_ERROR((AE_INFO,
-                                    "Unknown update_rule value: %X",
+                                    "Unknown UpdateRule value: %X",
                                     (obj_desc->common_field.
                                      field_flags &
                                      AML_FIELD_UPDATE_RULE_MASK)));
@@ -623,7 +636,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
         }
 
         ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                          "Mask %8.8X%8.8X, datum_offset %X, Width %X, Value %8.8X%8.8X, merged_value %8.8X%8.8X\n",
+                          "Mask %8.8X%8.8X, DatumOffset %X, Width %X, Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n",
                           ACPI_FORMAT_UINT64(mask),
                           field_datum_byte_offset,
                           obj_desc->common_field.access_byte_width,
@@ -666,7 +679,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
         u32 field_datum_count;
         u32 i;
 
-        ACPI_FUNCTION_TRACE("ex_extract_from_field");
+        ACPI_FUNCTION_TRACE(ex_extract_from_field);
 
         /* Validate target buffer and clear it */
 
@@ -704,6 +717,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
         /* Read the rest of the field */
 
         for (i = 1; i < field_datum_count; i++) {
+
                 /* Get next input datum from the field */
 
                 field_offset += obj_desc->common_field.access_byte_width;
@@ -771,6 +785,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 {
         acpi_status status;
         acpi_integer mask;
+        acpi_integer width_mask;
         acpi_integer merged_datum;
         acpi_integer raw_datum = 0;
         u32 field_offset = 0;
@@ -780,7 +795,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
         u32 field_datum_count;
         u32 i;
 
-        ACPI_FUNCTION_TRACE("ex_insert_into_field");
+        ACPI_FUNCTION_TRACE(ex_insert_into_field);
 
         /* Validate input buffer */
 
@@ -795,15 +810,20 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 
         /* Compute the number of datums (access width data items) */
 
+        width_mask =
+            ACPI_MASK_BITS_ABOVE(obj_desc->common_field.access_bit_width);
         mask =
-            ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset);
-        datum_count =
-            ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
-                             obj_desc->common_field.access_bit_width);
-        field_datum_count =
-            ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
-                             obj_desc->common_field.start_field_bit_offset,
-                             obj_desc->common_field.access_bit_width);
+            width_mask & ACPI_MASK_BITS_BELOW(obj_desc->common_field.
+                                              start_field_bit_offset);
+
+        datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
+                                       obj_desc->common_field.access_bit_width);
+
+        field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
+                                             obj_desc->common_field.
+                                             start_field_bit_offset,
+                                             obj_desc->common_field.
+                                             access_bit_width);
 
         /* Get initial Datum from the input buffer */
 
@@ -817,6 +837,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
         /* Write the entire field */
 
         for (i = 1; i < field_datum_count; i++) {
+
                 /* Write merged datum to the target field */
 
                 merged_datum &= mask;
@@ -833,7 +854,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
                 merged_datum = raw_datum >>
                     (obj_desc->common_field.access_bit_width -
                      obj_desc->common_field.start_field_bit_offset);
-                mask = ACPI_INTEGER_MAX;
+                mask = width_mask;
 
                 if (i == datum_count) {
                         break;
diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c
index 48c18d29222a..bd98aab017cf 100644
--- a/drivers/acpi/executer/exmisc.c
+++ b/drivers/acpi/executer/exmisc.c
@@ -72,7 +72,7 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc,
         union acpi_operand_object *reference_obj;
         union acpi_operand_object *referenced_obj;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_get_object_reference", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_get_object_reference, obj_desc);
 
         *return_desc = NULL;
 
@@ -168,7 +168,7 @@ acpi_ex_concat_template(union acpi_operand_object *operand0,
         acpi_size length1;
         acpi_size new_length;
 
-        ACPI_FUNCTION_TRACE("ex_concat_template");
+        ACPI_FUNCTION_TRACE(ex_concat_template);
 
         /*
          * Find the end_tag descriptor in each resource template.
@@ -250,7 +250,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
         char *new_buf;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ex_do_concatenate");
+        ACPI_FUNCTION_TRACE(ex_do_concatenate);
 
         /*
          * Convert the second operand if necessary.  The first operand
@@ -445,10 +445,24 @@ acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1)
 
         case AML_SHIFT_LEFT_OP: /* shift_left (Operand, shift_count, Result) */
 
+                /*
+                 * We need to check if the shiftcount is larger than the integer bit
+                 * width since the behavior of this is not well-defined in the C language.
+                 */
+                if (integer1 >= acpi_gbl_integer_bit_width) {
+                        return (0);
+                }
                 return (integer0 << integer1);
 
         case AML_SHIFT_RIGHT_OP:        /* shift_right (Operand, shift_count, Result) */
 
+                /*
+                 * We need to check if the shiftcount is larger than the integer bit
+                 * width since the behavior of this is not well-defined in the C language.
+                 */
+                if (integer1 >= acpi_gbl_integer_bit_width) {
+                        return (0);
+                }
                 return (integer0 >> integer1);
 
         case AML_SUBTRACT_OP:   /* Subtract (Integer0, Integer1, Result) */
@@ -489,7 +503,7 @@ acpi_ex_do_logical_numeric_op(u16 opcode,
         acpi_status status = AE_OK;
         u8 local_result = FALSE;
 
-        ACPI_FUNCTION_TRACE("ex_do_logical_numeric_op");
+        ACPI_FUNCTION_TRACE(ex_do_logical_numeric_op);
 
         switch (opcode) {
         case AML_LAND_OP:       /* LAnd (Integer0, Integer1) */
@@ -557,7 +571,7 @@ acpi_ex_do_logical_op(u16 opcode,
         u8 local_result = FALSE;
         int compare;
 
-        ACPI_FUNCTION_TRACE("ex_do_logical_op");
+        ACPI_FUNCTION_TRACE(ex_do_logical_op);
 
         /*
          * Convert the second operand if necessary.  The first operand
@@ -649,6 +663,7 @@ acpi_ex_do_logical_op(u16 opcode,
                         /* Length and all bytes must be equal */
 
                         if ((length0 == length1) && (compare == 0)) {
+
                                 /* Length and all bytes match ==> TRUE */
 
                                 local_result = TRUE;
diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c
index f843b22e20b9..93098d68cadf 100644
--- a/drivers/acpi/executer/exmutex.c
+++ b/drivers/acpi/executer/exmutex.c
@@ -61,7 +61,7 @@ acpi_ex_link_mutex(union acpi_operand_object *obj_desc,
  *
  * RETURN:      None
  *
- * DESCRIPTION: Remove a mutex from the "acquired_mutex" list
+ * DESCRIPTION: Remove a mutex from the "AcquiredMutex" list
  *
  ******************************************************************************/
 
@@ -95,7 +95,7 @@ void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc)
  *
  * RETURN:      None
  *
- * DESCRIPTION: Add a mutex to the "acquired_mutex" list for this walk
+ * DESCRIPTION: Add a mutex to the "AcquiredMutex" list for this walk
  *
  ******************************************************************************/
 
@@ -144,7 +144,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_acquire_mutex", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex, obj_desc);
 
         if (!obj_desc) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -165,7 +165,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
          */
         if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) {
                 ACPI_ERROR((AE_INFO,
-                            "Cannot acquire Mutex [%4.4s], incorrect sync_level",
+                            "Cannot acquire Mutex [%4.4s], incorrect SyncLevel",
                             acpi_ut_get_node_name(obj_desc->mutex.node)));
                 return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
         }
@@ -173,6 +173,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
         /* Support for multiple acquires by the owning thread */
 
         if (obj_desc->mutex.owner_thread) {
+
                 /* Special case for Global Lock, allow all threads */
 
                 if ((obj_desc->mutex.owner_thread->thread_id ==
@@ -192,6 +193,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
 
         status = acpi_ex_system_acquire_mutex(time_desc, obj_desc);
         if (ACPI_FAILURE(status)) {
+
                 /* Includes failure from a timeout on time_desc */
 
                 return_ACPI_STATUS(status);
@@ -232,7 +234,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ex_release_mutex");
+        ACPI_FUNCTION_TRACE(ex_release_mutex);
 
         if (!obj_desc) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -277,7 +279,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
          */
         if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) {
                 ACPI_ERROR((AE_INFO,
-                            "Cannot release Mutex [%4.4s], incorrect sync_level",
+                            "Cannot release Mutex [%4.4s], incorrect SyncLevel",
                             acpi_ut_get_node_name(obj_desc->mutex.node)));
                 return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
         }
@@ -286,6 +288,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 
         obj_desc->mutex.acquisition_depth--;
         if (obj_desc->mutex.acquisition_depth != 0) {
+
                 /* Just decrement the depth and return */
 
                 return_ACPI_STATUS(AE_OK);
diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c
index 054fe5e1a314..d3d70364626c 100644
--- a/drivers/acpi/executer/exnames.c
+++ b/drivers/acpi/executer/exnames.c
@@ -77,7 +77,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
         char *name_string;
         u32 size_needed;
 
-        ACPI_FUNCTION_TRACE("ex_allocate_name_string");
+        ACPI_FUNCTION_TRACE(ex_allocate_name_string);
 
         /*
          * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix.
@@ -85,6 +85,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
          * This may actually be somewhat longer than needed.
          */
         if (prefix_count == ACPI_UINT32_MAX) {
+
                 /* Special case for root */
 
                 size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1;
@@ -97,7 +98,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
          * Allocate a buffer for the name.
          * This buffer must be deleted by the caller!
          */
-        name_string = ACPI_MEM_ALLOCATE(size_needed);
+        name_string = ACPI_ALLOCATE(size_needed);
         if (!name_string) {
                 ACPI_ERROR((AE_INFO,
                             "Could not allocate size %d", size_needed));
@@ -119,11 +120,13 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
         /* Set up Dual or Multi prefixes if needed */
 
         if (num_name_segs > 2) {
+
                 /* Set up multi prefixes   */
 
                 *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP;
                 *temp_ptr++ = (char)num_name_segs;
         } else if (2 == num_name_segs) {
+
                 /* Set up dual prefixes */
 
                 *temp_ptr++ = AML_DUAL_NAME_PREFIX;
@@ -159,7 +162,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
         u32 index;
         char char_buf[5];
 
-        ACPI_FUNCTION_TRACE("ex_name_segment");
+        ACPI_FUNCTION_TRACE(ex_name_segment);
 
         /*
          * If first character is a digit, then we know that we aren't looking at a
@@ -176,7 +179,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
 
         for (index = 0;
              (index < ACPI_NAME_SIZE)
-             && (acpi_ut_valid_acpi_character(*aml_address)); index++) {
+             && (acpi_ut_valid_acpi_char(*aml_address, 0)); index++) {
                 char_buf[index] = *aml_address++;
                 ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index]));
         }
@@ -184,6 +187,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
         /* Valid name segment  */
 
         if (index == 4) {
+
                 /* Found 4 valid characters */
 
                 char_buf[4] = '\0';
@@ -249,11 +253,12 @@ acpi_ex_get_name_string(acpi_object_type data_type,
         u32 prefix_count = 0;
         u8 has_prefix = FALSE;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_get_name_string", aml_address);
+        ACPI_FUNCTION_TRACE_PTR(ex_get_name_string, aml_address);
 
         if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type ||
             ACPI_TYPE_LOCAL_BANK_FIELD == data_type ||
             ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) {
+
                 /* Disallow prefixes for types associated with field_unit names */
 
                 name_string = acpi_ex_allocate_name_string(0, 1);
@@ -272,7 +277,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
                 case AML_ROOT_PREFIX:
 
                         ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
-                                          "root_prefix(\\) at %p\n",
+                                          "RootPrefix(\\) at %p\n",
                                           aml_address));
 
                         /*
@@ -290,7 +295,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
 
                         do {
                                 ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
-                                                  "parent_prefix (^) at %p\n",
+                                                  "ParentPrefix (^) at %p\n",
                                                   aml_address));
 
                                 aml_address++;
@@ -314,7 +319,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
                 case AML_DUAL_NAME_PREFIX:
 
                         ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
-                                          "dual_name_prefix at %p\n",
+                                          "DualNamePrefix at %p\n",
                                           aml_address));
 
                         aml_address++;
@@ -341,7 +346,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
                 case AML_MULTI_NAME_PREFIX_OP:
 
                         ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
-                                          "multi_name_prefix at %p\n",
+                                          "MultiNamePrefix at %p\n",
                                           aml_address));
 
                         /* Fetch count of segments remaining in name path */
@@ -377,7 +382,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
 
                         if (prefix_count == ACPI_UINT32_MAX) {
                                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                                  "name_seg is \"\\\" followed by NULL\n"));
+                                                  "NameSeg is \"\\\" followed by NULL\n"));
                         }
 
                         /* Consume the NULL byte */
@@ -410,6 +415,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
         }
 
         if (AE_CTRL_PENDING == status && has_prefix) {
+
                 /* Ran out of segments after processing a prefix */
 
                 ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string));
@@ -418,7 +424,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
 
         if (ACPI_FAILURE(status)) {
                 if (name_string) {
-                        ACPI_MEM_FREE(name_string);
+                        ACPI_FREE(name_string);
                 }
                 return_ACPI_STATUS(status);
         }
diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c
index 23d0823bcd5e..6374d8be88e0 100644
--- a/drivers/acpi/executer/exoparg1.c
+++ b/drivers/acpi/executer/exoparg1.c
@@ -89,7 +89,7 @@ acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state)
         acpi_status status = AE_OK;
         union acpi_operand_object *return_desc = NULL;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_0A_0T_1R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_0A_0T_1R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         /* Examine the AML opcode */
@@ -150,7 +150,7 @@ acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state)
         union acpi_operand_object **operand = &walk_state->operands[0];
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_0T_0R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_0R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         /* Examine the AML opcode */
@@ -216,7 +216,7 @@ acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state)
         acpi_status status = AE_OK;
         union acpi_operand_object **operand = &walk_state->operands[0];
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_1T_0R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_0R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         /* Examine the AML opcode */
@@ -264,7 +264,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
         acpi_integer power_of_ten;
         acpi_integer digit;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_1T_1R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         /* Examine the AML opcode */
@@ -322,8 +322,9 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 
                         /* Since the bit position is one-based, subtract from 33 (65) */
 
-                        return_desc->integer.value = temp32 == 0 ? 0 :
-                            (ACPI_INTEGER_BIT_SIZE + 1) - temp32;
+                        return_desc->integer.value =
+                            temp32 ==
+                            0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - temp32;
                         break;
 
                 case AML_FROM_BCD_OP:   /* from_bcd (BCDValue, Result) */
@@ -342,6 +343,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
                         for (i = 0;
                              (i < acpi_gbl_integer_nybble_width) && (digit > 0);
                              i++) {
+
                                 /* Get the least significant 4-bit BCD digit */
 
                                 temp32 = ((u32) digit) & 0xF;
@@ -487,6 +489,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
                 status = acpi_ex_convert_to_string(operand[0], &return_desc,
                                                    ACPI_EXPLICIT_CONVERT_DECIMAL);
                 if (return_desc == operand[0]) {
+
                         /* No conversion performed, add ref to handle return value */
                         acpi_ut_add_reference(return_desc);
                 }
@@ -497,6 +500,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
                 status = acpi_ex_convert_to_string(operand[0], &return_desc,
                                                    ACPI_EXPLICIT_CONVERT_HEX);
                 if (return_desc == operand[0]) {
+
                         /* No conversion performed, add ref to handle return value */
                         acpi_ut_add_reference(return_desc);
                 }
@@ -506,6 +510,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 
                 status = acpi_ex_convert_to_buffer(operand[0], &return_desc);
                 if (return_desc == operand[0]) {
+
                         /* No conversion performed, add ref to handle return value */
                         acpi_ut_add_reference(return_desc);
                 }
@@ -516,6 +521,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
                 status = acpi_ex_convert_to_integer(operand[0], &return_desc,
                                                     ACPI_ANY_BASE);
                 if (return_desc == operand[0]) {
+
                         /* No conversion performed, add ref to handle return value */
                         acpi_ut_add_reference(return_desc);
                 }
@@ -541,6 +547,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
         }
 
         if (ACPI_SUCCESS(status)) {
+
                 /* Store the return value computed above into the target object */
 
                 status = acpi_ex_store(return_desc, operand[1], walk_state);
@@ -548,16 +555,18 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 
       cleanup:
 
-        if (!walk_state->result_obj) {
-                walk_state->result_obj = return_desc;
-        }
-
         /* Delete return object on error */
 
         if (ACPI_FAILURE(status)) {
                 acpi_ut_remove_reference(return_desc);
         }
 
+        /* Save return object on success */
+
+        else if (!walk_state->result_obj) {
+                walk_state->result_obj = return_desc;
+        }
+
         return_ACPI_STATUS(status);
 }
 
@@ -582,7 +591,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
         u32 type;
         acpi_integer value;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_0T_1R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         /* Examine the AML opcode */
@@ -625,6 +634,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
                 temp_desc = operand[0];
                 if (ACPI_GET_DESCRIPTOR_TYPE(temp_desc) ==
                     ACPI_DESC_TYPE_OPERAND) {
+
                         /* Internal reference object - prevent deletion */
 
                         acpi_ut_add_reference(temp_desc);
@@ -689,6 +699,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
                 if (ACPI_FAILURE(status)) {
                         goto cleanup;
                 }
+
                 /* Allocate a descriptor to hold the type. */
 
                 return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
@@ -777,8 +788,25 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 
                 /* Check for a method local or argument, or standalone String */
 
-                if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) !=
+                if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) ==
                     ACPI_DESC_TYPE_NAMED) {
+                        temp_desc =
+                            acpi_ns_get_attached_object((struct
+                                                         acpi_namespace_node *)
+                                                        operand[0]);
+                        if (temp_desc
+                            &&
+                            ((ACPI_GET_OBJECT_TYPE(temp_desc) ==
+                              ACPI_TYPE_STRING)
+                             || (ACPI_GET_OBJECT_TYPE(temp_desc) ==
+                                 ACPI_TYPE_LOCAL_REFERENCE))) {
+                                operand[0] = temp_desc;
+                                acpi_ut_add_reference(temp_desc);
+                        } else {
+                                status = AE_AML_OPERAND_TYPE;
+                                goto cleanup;
+                        }
+                } else {
                         switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
                         case ACPI_TYPE_LOCAL_REFERENCE:
                                 /*
@@ -827,26 +855,35 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
                                 break;
 
                         case ACPI_TYPE_STRING:
+                                break;
 
+                        default:
+                                status = AE_AML_OPERAND_TYPE;
+                                goto cleanup;
+                        }
+                }
+
+                if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) !=
+                    ACPI_DESC_TYPE_NAMED) {
+                        if (ACPI_GET_OBJECT_TYPE(operand[0]) ==
+                            ACPI_TYPE_STRING) {
                                 /*
                                  * This is a deref_of (String). The string is a reference
                                  * to a named ACPI object.
                                  *
                                  * 1) Find the owning Node
-                                 * 2) Dereference the node to an actual object.  Could be a
+                                 * 2) Dereference the node to an actual object. Could be a
                                  *    Field, so we need to resolve the node to a value.
                                  */
                                 status =
-                                    acpi_ns_get_node_by_path(operand[0]->string.
-                                                             pointer,
-                                                             walk_state->
-                                                             scope_info->scope.
-                                                             node,
-                                                             ACPI_NS_SEARCH_PARENT,
-                                                             ACPI_CAST_INDIRECT_PTR
-                                                             (struct
-                                                              acpi_namespace_node,
-                                                              &return_desc));
+                                    acpi_ns_get_node(walk_state->scope_info->
+                                                     scope.node,
+                                                     operand[0]->string.pointer,
+                                                     ACPI_NS_SEARCH_PARENT,
+                                                     ACPI_CAST_INDIRECT_PTR
+                                                     (struct
+                                                      acpi_namespace_node,
+                                                      &return_desc));
                                 if (ACPI_FAILURE(status)) {
                                         goto cleanup;
                                 }
@@ -857,11 +894,6 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
                                      (struct acpi_namespace_node, &return_desc),
                                      walk_state);
                                 goto cleanup;
-
-                        default:
-
-                                status = AE_AML_OPERAND_TYPE;
-                                goto cleanup;
                         }
                 }
 
@@ -937,13 +969,12 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
                                                 acpi_ut_add_reference
                                                     (return_desc);
                                         }
-
                                         break;
 
                                 default:
 
                                         ACPI_ERROR((AE_INFO,
-                                                    "Unknown Index target_type %X in obj %p",
+                                                    "Unknown Index TargetType %X in obj %p",
                                                     operand[0]->reference.
                                                     target_type, operand[0]));
                                         status = AE_AML_OPERAND_TYPE;
@@ -957,7 +988,6 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 
                                 if (ACPI_GET_DESCRIPTOR_TYPE(return_desc) ==
                                     ACPI_DESC_TYPE_NAMED) {
-
                                         return_desc =
                                             acpi_ns_get_attached_object((struct
                                                                          acpi_namespace_node
@@ -972,7 +1002,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 
                         default:
                                 ACPI_ERROR((AE_INFO,
-                                            "Unknown opcode in ref(%p) - %X",
+                                            "Unknown opcode in reference(%p) - %X",
                                             operand[0],
                                             operand[0]->reference.opcode));
 
@@ -998,6 +1028,11 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
                 acpi_ut_remove_reference(return_desc);
         }
 
-        walk_state->result_obj = return_desc;
+        /* Save return object on success */
+
+        else {
+                walk_state->result_obj = return_desc;
+        }
+
         return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/executer/exoparg2.c b/drivers/acpi/executer/exoparg2.c
index e263a5ddd405..7d2cbc113160 100644
--- a/drivers/acpi/executer/exoparg2.c
+++ b/drivers/acpi/executer/exoparg2.c
@@ -92,7 +92,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state)
         u32 value;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_0T_0R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_0R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         /* Examine the opcode */
@@ -121,7 +121,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state)
 #ifdef ACPI_GPE_NOTIFY_CHECK
                 /*
                  * GPE method wake/notify check.  Here, we want to ensure that we
-                 * don't receive any "device_wake" Notifies from a GPE _Lxx or _Exx
+                 * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx
                  * GPE method during system runtime.  If we do, the GPE is marked
                  * as "wake-only" and disabled.
                  *
@@ -138,6 +138,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state)
                             acpi_ev_check_for_wake_only_gpe(walk_state->
                                                             gpe_event_info);
                         if (ACPI_FAILURE(status)) {
+
                                 /* AE_WAKE_ONLY_GPE only error, means ignore this notify */
 
                                 return_ACPI_STATUS(AE_OK)
@@ -185,7 +186,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state)
         union acpi_operand_object *return_desc2 = NULL;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_2T_1R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         /* Execute the opcode */
@@ -252,6 +253,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state)
         acpi_ut_remove_reference(return_desc2);
 
         if (ACPI_FAILURE(status)) {
+
                 /* Delete the return object */
 
                 acpi_ut_remove_reference(return_desc1);
@@ -281,12 +283,13 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
         acpi_status status = AE_OK;
         acpi_size length;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_1T_1R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         /* Execute the opcode */
 
         if (walk_state->op_info->flags & AML_MATH) {
+
                 /* All simple math opcodes (add, etc.) */
 
                 return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
@@ -383,54 +386,70 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
                         goto cleanup;
                 }
 
+                /* Initialize the Index reference object */
+
                 index = operand[1]->integer.value;
+                return_desc->reference.offset = (u32) index;
+                return_desc->reference.opcode = AML_INDEX_OP;
 
-                /* At this point, the Source operand is a Package, Buffer, or String */
+                /*
+                 * At this point, the Source operand is a String, Buffer, or Package.
+                 * Verify that the index is within range.
+                 */
+                switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
+                case ACPI_TYPE_STRING:
 
-                if (ACPI_GET_OBJECT_TYPE(operand[0]) == ACPI_TYPE_PACKAGE) {
-                        /* Object to be indexed is a Package */
+                        if (index >= operand[0]->string.length) {
+                                status = AE_AML_STRING_LIMIT;
+                        }
+
+                        return_desc->reference.target_type =
+                            ACPI_TYPE_BUFFER_FIELD;
+                        break;
+
+                case ACPI_TYPE_BUFFER:
+
+                        if (index >= operand[0]->buffer.length) {
+                                status = AE_AML_BUFFER_LIMIT;
+                        }
+
+                        return_desc->reference.target_type =
+                            ACPI_TYPE_BUFFER_FIELD;
+                        break;
+
+                case ACPI_TYPE_PACKAGE:
 
                         if (index >= operand[0]->package.count) {
-                                ACPI_ERROR((AE_INFO,
-                                            "Index value (%X%8.8X) beyond package end (%X)",
-                                            ACPI_FORMAT_UINT64(index),
-                                            operand[0]->package.count));
                                 status = AE_AML_PACKAGE_LIMIT;
-                                goto cleanup;
                         }
 
                         return_desc->reference.target_type = ACPI_TYPE_PACKAGE;
-                        return_desc->reference.object = operand[0];
                         return_desc->reference.where =
                             &operand[0]->package.elements[index];
-                } else {
-                        /* Object to be indexed is a Buffer/String */
+                        break;
 
-                        if (index >= operand[0]->buffer.length) {
-                                ACPI_ERROR((AE_INFO,
-                                            "Index value (%X%8.8X) beyond end of buffer (%X)",
-                                            ACPI_FORMAT_UINT64(index),
-                                            operand[0]->buffer.length));
-                                status = AE_AML_BUFFER_LIMIT;
-                                goto cleanup;
-                        }
+                default:
 
-                        return_desc->reference.target_type =
-                            ACPI_TYPE_BUFFER_FIELD;
-                        return_desc->reference.object = operand[0];
+                        status = AE_AML_INTERNAL;
+                        goto cleanup;
+                }
+
+                /* Failure means that the Index was beyond the end of the object */
+
+                if (ACPI_FAILURE(status)) {
+                        ACPI_EXCEPTION((AE_INFO, status,
+                                        "Index (%X%8.8X) is beyond end of object",
+                                        ACPI_FORMAT_UINT64(index)));
+                        goto cleanup;
                 }
 
                 /*
-                 * Add a reference to the target package/buffer/string for the life
-                 * of the index.
+                 * Save the target object and add a reference to it for the life
+                 * of the index
                  */
+                return_desc->reference.object = operand[0];
                 acpi_ut_add_reference(operand[0]);
 
-                /* Complete the Index reference object */
-
-                return_desc->reference.opcode = AML_INDEX_OP;
-                return_desc->reference.offset = (u32) index;
-
                 /* Store the reference to the Target */
 
                 status = acpi_ex_store(return_desc, operand[2], walk_state);
@@ -495,7 +514,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
         acpi_status status = AE_OK;
         u8 logical_result = FALSE;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_0T_1R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         /* Create the internal return object */
@@ -509,6 +528,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
         /* Execute the Opcode */
 
         if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) {
+
                 /* logical_op (Operand0, Operand1) */
 
                 status = acpi_ex_do_logical_numeric_op(walk_state->opcode,
@@ -518,6 +538,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
                                                        value, &logical_result);
                 goto store_logical_result;
         } else if (walk_state->op_info->flags & AML_LOGICAL) {
+
                 /* logical_op (Operand0, Operand1) */
 
                 status = acpi_ex_do_logical_op(walk_state->opcode, operand[0],
diff --git a/drivers/acpi/executer/exoparg3.c b/drivers/acpi/executer/exoparg3.c
index 6a3a883cb8a3..e2d945dfd509 100644
--- a/drivers/acpi/executer/exoparg3.c
+++ b/drivers/acpi/executer/exoparg3.c
@@ -88,20 +88,19 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
         struct acpi_signal_fatal_info *fatal;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_3A_0T_0R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_0T_0R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         switch (walk_state->opcode) {
         case AML_FATAL_OP:      /* Fatal (fatal_type fatal_code fatal_arg) */
 
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-                                  "fatal_op: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
+                                  "FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
                                   (u32) operand[0]->integer.value,
                                   (u32) operand[1]->integer.value,
                                   (u32) operand[2]->integer.value));
 
-                fatal =
-                    ACPI_MEM_ALLOCATE(sizeof(struct acpi_signal_fatal_info));
+                fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info));
                 if (fatal) {
                         fatal->type = (u32) operand[0]->integer.value;
                         fatal->code = (u32) operand[1]->integer.value;
@@ -114,7 +113,7 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
 
                 /* Might return while OS is shutting down, just continue */
 
-                ACPI_MEM_FREE(fatal);
+                ACPI_FREE(fatal);
                 break;
 
         default:
@@ -151,7 +150,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
         acpi_integer index;
         acpi_size length;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_3A_1T_1R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_1T_1R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         switch (walk_state->opcode) {
@@ -196,7 +195,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 
                         /* Always allocate a new buffer for the String */
 
-                        buffer = ACPI_MEM_CALLOCATE((acpi_size) length + 1);
+                        buffer = ACPI_ALLOCATE_ZEROED((acpi_size) length + 1);
                         if (!buffer) {
                                 status = AE_NO_MEMORY;
                                 goto cleanup;
@@ -208,9 +207,10 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
                         /* If the requested length is zero, don't allocate a buffer */
 
                         if (length > 0) {
+
                                 /* Allocate a new buffer for the Buffer */
 
-                                buffer = ACPI_MEM_CALLOCATE(length);
+                                buffer = ACPI_ALLOCATE_ZEROED(length);
                                 if (!buffer) {
                                         status = AE_NO_MEMORY;
                                         goto cleanup;
@@ -225,6 +225,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
                 }
 
                 if (buffer) {
+
                         /* We have a buffer, copy the portion requested */
 
                         ACPI_MEMCPY(buffer, operand[0]->string.pointer + index,
diff --git a/drivers/acpi/executer/exoparg6.c b/drivers/acpi/executer/exoparg6.c
index e043d924444f..f0c0ba6eb408 100644
--- a/drivers/acpi/executer/exoparg6.c
+++ b/drivers/acpi/executer/exoparg6.c
@@ -220,7 +220,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state)
         acpi_integer index;
         union acpi_operand_object *this_element;
 
-        ACPI_FUNCTION_TRACE_STR("ex_opcode_6A_0T_1R",
+        ACPI_FUNCTION_TRACE_STR(ex_opcode_6A_0T_1R,
                                 acpi_ps_get_opcode_name(walk_state->opcode));
 
         switch (walk_state->opcode) {
@@ -276,6 +276,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state)
                  * match was found.
                  */
                 for (; index < operand[0]->package.count; index++) {
+
                         /* Get the current package element */
 
                         this_element = operand[0]->package.elements[index];
diff --git a/drivers/acpi/executer/exprep.c b/drivers/acpi/executer/exprep.c
index 7719ae5d4f16..44d064f427b9 100644
--- a/drivers/acpi/executer/exprep.c
+++ b/drivers/acpi/executer/exprep.c
@@ -97,7 +97,7 @@ acpi_ex_generate_access(u32 field_bit_offset,
         u32 minimum_accesses = 0xFFFFFFFF;
         u32 accesses;
 
-        ACPI_FUNCTION_TRACE("ex_generate_access");
+        ACPI_FUNCTION_TRACE(ex_generate_access);
 
         /* Round Field start offset and length to "minimal" byte boundaries */
 
@@ -146,7 +146,7 @@ acpi_ex_generate_access(u32 field_bit_offset,
                         accesses = field_end_offset - field_start_offset;
 
                         ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                                          "access_width %d end is within region\n",
+                                          "AccessWidth %d end is within region\n",
                                           access_byte_width));
 
                         ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
@@ -173,7 +173,7 @@ acpi_ex_generate_access(u32 field_bit_offset,
                         }
                 } else {
                         ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                                          "access_width %d end is NOT within region\n",
+                                          "AccessWidth %d end is NOT within region\n",
                                           access_byte_width));
                         if (access_byte_width == 1) {
                                 ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
@@ -228,7 +228,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
         u32 byte_alignment;
         u32 bit_length;
 
-        ACPI_FUNCTION_TRACE("ex_decode_field_access");
+        ACPI_FUNCTION_TRACE(ex_decode_field_access);
 
         access = (field_flags & AML_FIELD_ACCESS_TYPE_MASK);
 
@@ -322,7 +322,7 @@ acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc,
         u32 byte_alignment;
         u32 nearest_byte_address;
 
-        ACPI_FUNCTION_TRACE("ex_prep_common_field_object");
+        ACPI_FUNCTION_TRACE(ex_prep_common_field_object);
 
         /*
          * Note: the structure being initialized is the
@@ -415,13 +415,13 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
         u32 type;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ex_prep_field_value");
+        ACPI_FUNCTION_TRACE(ex_prep_field_value);
 
         /* Parameter validation */
 
         if (info->field_type != ACPI_TYPE_LOCAL_INDEX_FIELD) {
                 if (!info->region_node) {
-                        ACPI_ERROR((AE_INFO, "Null region_node"));
+                        ACPI_ERROR((AE_INFO, "Null RegionNode"));
                         return_ACPI_STATUS(AE_AML_NO_OPERAND);
                 }
 
@@ -467,7 +467,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
                 acpi_ut_add_reference(obj_desc->field.region_obj);
 
                 ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                                  "region_field: bit_off %X, Off %X, Gran %X, Region %p\n",
+                                  "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n",
                                   obj_desc->field.start_field_bit_offset,
                                   obj_desc->field.base_byte_offset,
                                   obj_desc->field.access_byte_width,
@@ -488,7 +488,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
                 acpi_ut_add_reference(obj_desc->bank_field.bank_obj);
 
                 ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                                  "Bank Field: bit_off %X, Off %X, Gran %X, Region %p, bank_reg %p\n",
+                                  "Bank Field: BitOff %X, Off %X, Gran %X, Region %p, BankReg %p\n",
                                   obj_desc->bank_field.start_field_bit_offset,
                                   obj_desc->bank_field.base_byte_offset,
                                   obj_desc->field.access_byte_width,
@@ -519,16 +519,29 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
                 acpi_ut_add_reference(obj_desc->index_field.index_obj);
 
                 /*
+                 * April 2006: Changed to match MS behavior
+                 *
                  * The value written to the Index register is the byte offset of the
-                 * target field
-                 * Note: may change code to: ACPI_DIV_8 (Info->field_bit_position)
+                 * target field in units of the granularity of the index_field
+                 *
+                 * Previously, the value was calculated as an index in terms of the
+                 * width of the Data register, as below:
+                 *
+                 *      obj_desc->index_field.Value = (u32)
+                 *          (Info->field_bit_position / ACPI_MUL_8 (
+                 *              obj_desc->Field.access_byte_width));
+                 *
+                 * February 2006: Tried value as a byte offset:
+                 *      obj_desc->index_field.Value = (u32)
+                 *          ACPI_DIV_8 (Info->field_bit_position);
                  */
-                obj_desc->index_field.value = (u32)
-                    (info->field_bit_position /
-                     ACPI_MUL_8(obj_desc->field.access_byte_width));
+                obj_desc->index_field.value =
+                    (u32) ACPI_ROUND_DOWN(ACPI_DIV_8(info->field_bit_position),
+                                          obj_desc->index_field.
+                                          access_byte_width);
 
                 ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                                  "index_field: bit_off %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n",
+                                  "IndexField: BitOff %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n",
                                   obj_desc->index_field.start_field_bit_offset,
                                   obj_desc->index_field.base_byte_offset,
                                   obj_desc->index_field.value,
@@ -550,7 +563,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
                                        acpi_ns_get_type(info->field_node));
 
         ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-                          "Set named_obj %p [%4.4s], obj_desc %p\n",
+                          "Set NamedObj %p [%4.4s], ObjDesc %p\n",
                           info->field_node,
                           acpi_ut_get_node_name(info->field_node), obj_desc));
 
diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c
index 6a4cfdff606d..3cc97ba48b36 100644
--- a/drivers/acpi/executer/exregion.c
+++ b/drivers/acpi/executer/exregion.c
@@ -81,7 +81,7 @@ acpi_ex_system_memory_space_handler(u32 function,
         u32 remainder;
 #endif
 
-        ACPI_FUNCTION_TRACE("ex_system_memory_space_handler");
+        ACPI_FUNCTION_TRACE(ex_system_memory_space_handler);
 
         /* Validate and translate the bit width */
 
@@ -103,7 +103,7 @@ acpi_ex_system_memory_space_handler(u32 function,
                 break;
 
         default:
-                ACPI_ERROR((AE_INFO, "Invalid system_memory width %d",
+                ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d",
                             bit_width));
                 return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
         }
@@ -135,6 +135,7 @@ acpi_ex_system_memory_space_handler(u32 function,
                  * Delete the existing mapping and create a new one.
                  */
                 if (mem_info->mapped_length) {
+
                         /* Valid mapping, delete it */
 
                         acpi_os_unmap_memory(mem_info->mapped_logical_address,
@@ -181,8 +182,8 @@ acpi_ex_system_memory_space_handler(u32 function,
              (acpi_integer) mem_info->mapped_physical_address);
 
         ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-                          "system_memory %d (%d width) Address=%8.8X%8.8X\n",
-                          function, bit_width, ACPI_FORMAT_UINT64(address)));
+                          "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n",
+                          bit_width, function, ACPI_FORMAT_UINT64(address)));
 
         /*
          * Perform the memory read or write
@@ -283,11 +284,11 @@ acpi_ex_system_io_space_handler(u32 function,
         acpi_status status = AE_OK;
         u32 value32;
 
-        ACPI_FUNCTION_TRACE("ex_system_io_space_handler");
+        ACPI_FUNCTION_TRACE(ex_system_io_space_handler);
 
         ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-                          "system_iO %d (%d width) Address=%8.8X%8.8X\n",
-                          function, bit_width, ACPI_FORMAT_UINT64(address)));
+                          "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n",
+                          bit_width, function, ACPI_FORMAT_UINT64(address)));
 
         /* Decode the function parameter */
 
@@ -342,7 +343,7 @@ acpi_ex_pci_config_space_handler(u32 function,
         struct acpi_pci_id *pci_id;
         u16 pci_register;
 
-        ACPI_FUNCTION_TRACE("ex_pci_config_space_handler");
+        ACPI_FUNCTION_TRACE(ex_pci_config_space_handler);
 
         /*
          *  The arguments to acpi_os(Read|Write)pci_configuration are:
@@ -360,7 +361,7 @@ acpi_ex_pci_config_space_handler(u32 function,
         pci_register = (u16) (u32) address;
 
         ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-                          "pci_config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
+                          "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
                           function, bit_width, pci_id->segment, pci_id->bus,
                           pci_id->device, pci_id->function, pci_register));
 
@@ -414,7 +415,7 @@ acpi_ex_cmos_space_handler(u32 function,
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ex_cmos_space_handler");
+        ACPI_FUNCTION_TRACE(ex_cmos_space_handler);
 
         return_ACPI_STATUS(status);
 }
@@ -446,7 +447,7 @@ acpi_ex_pci_bar_space_handler(u32 function,
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ex_pci_bar_space_handler");
+        ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler);
 
         return_ACPI_STATUS(status);
 }
@@ -476,23 +477,16 @@ acpi_ex_data_table_space_handler(u32 function,
                                  acpi_integer * value,
                                  void *handler_context, void *region_context)
 {
-        acpi_status status = AE_OK;
-        u32 byte_width = ACPI_DIV_8(bit_width);
-        u32 i;
-        char *logical_addr_ptr;
-
-        ACPI_FUNCTION_TRACE("ex_data_table_space_handler");
-
-        logical_addr_ptr = ACPI_PHYSADDR_TO_PTR(address);
+        ACPI_FUNCTION_TRACE(ex_data_table_space_handler);
 
         /* Perform the memory read or write */
 
         switch (function) {
         case ACPI_READ:
 
-                for (i = 0; i < byte_width; i++) {
-                        ((char *)value)[i] = logical_addr_ptr[i];
-                }
+                ACPI_MEMCPY(ACPI_CAST_PTR(char, value),
+                            ACPI_PHYSADDR_TO_PTR(address),
+                            ACPI_DIV_8(bit_width));
                 break;
 
         case ACPI_WRITE:
@@ -501,5 +495,5 @@ acpi_ex_data_table_space_handler(u32 function,
                 return_ACPI_STATUS(AE_SUPPORT);
         }
 
-        return_ACPI_STATUS(status);
+        return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/executer/exresnte.c b/drivers/acpi/executer/exresnte.c
index 01b26c80d22b..3089b05a1368 100644
--- a/drivers/acpi/executer/exresnte.c
+++ b/drivers/acpi/executer/exresnte.c
@@ -87,7 +87,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
         struct acpi_namespace_node *node;
         acpi_object_type entry_type;
 
-        ACPI_FUNCTION_TRACE("ex_resolve_node_to_value");
+        ACPI_FUNCTION_TRACE(ex_resolve_node_to_value);
 
         /*
          * The stack pointer points to a struct acpi_namespace_node (Node).  Get the
@@ -97,12 +97,13 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
         source_desc = acpi_ns_get_attached_object(node);
         entry_type = acpi_ns_get_type((acpi_handle) node);
 
-        ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p source_desc=%p [%s]\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n",
                           node, source_desc,
                           acpi_ut_get_type_name(entry_type)));
 
         if ((entry_type == ACPI_TYPE_LOCAL_ALIAS) ||
             (entry_type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) {
+
                 /* There is always exactly one level of indirection */
 
                 node = ACPI_CAST_PTR(struct acpi_namespace_node, node->object);
@@ -113,10 +114,11 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
 
         /*
          * Several object types require no further processing:
-         * 1) Devices rarely have an attached object, return the Node
+         * 1) Device/Thermal objects don't have a "real" subobject, return the Node
          * 2) Method locals and arguments have a pseudo-Node
          */
-        if (entry_type == ACPI_TYPE_DEVICE ||
+        if ((entry_type == ACPI_TYPE_DEVICE) ||
+            (entry_type == ACPI_TYPE_THERMAL) ||
             (node->flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) {
                 return_ACPI_STATUS(AE_OK);
         }
@@ -141,6 +143,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
 
                 status = acpi_ds_get_package_arguments(source_desc);
                 if (ACPI_SUCCESS(status)) {
+
                         /* Return an additional reference to the object */
 
                         obj_desc = source_desc;
@@ -158,6 +161,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
 
                 status = acpi_ds_get_buffer_arguments(source_desc);
                 if (ACPI_SUCCESS(status)) {
+
                         /* Return an additional reference to the object */
 
                         obj_desc = source_desc;
@@ -199,7 +203,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
         case ACPI_TYPE_LOCAL_INDEX_FIELD:
 
                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "field_read Node=%p source_desc=%p Type=%X\n",
+                                  "FieldRead Node=%p SourceDesc=%p Type=%X\n",
                                   node, source_desc, entry_type));
 
                 status =
@@ -213,7 +217,6 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
         case ACPI_TYPE_METHOD:
         case ACPI_TYPE_POWER:
         case ACPI_TYPE_PROCESSOR:
-        case ACPI_TYPE_THERMAL:
         case ACPI_TYPE_EVENT:
         case ACPI_TYPE_REGION:
 
@@ -240,6 +243,8 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
                         /* This is a ddb_handle */
                         /* Return an additional reference to the object */
 
+                case AML_REF_OF_OP:
+
                         obj_desc = source_desc;
                         acpi_ut_add_reference(obj_desc);
                         break;
diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c
index 1deed492fe88..6499de878017 100644
--- a/drivers/acpi/executer/exresolv.c
+++ b/drivers/acpi/executer/exresolv.c
@@ -78,7 +78,7 @@ acpi_ex_resolve_to_value(union acpi_operand_object **stack_ptr,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_resolve_to_value", stack_ptr);
+        ACPI_FUNCTION_TRACE_PTR(ex_resolve_to_value, stack_ptr);
 
         if (!stack_ptr || !*stack_ptr) {
                 ACPI_ERROR((AE_INFO, "Internal - null pointer"));
@@ -144,7 +144,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
         union acpi_operand_object *obj_desc;
         u16 opcode;
 
-        ACPI_FUNCTION_TRACE("ex_resolve_object_to_value");
+        ACPI_FUNCTION_TRACE(ex_resolve_object_to_value);
 
         stack_desc = *stack_ptr;
 
@@ -190,7 +190,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
                         }
 
                         ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                          "[Arg/Local %X] value_obj is %p\n",
+                                          "[Arg/Local %X] ValueObj is %p\n",
                                           stack_desc->reference.offset,
                                           obj_desc));
 
@@ -239,7 +239,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
                                 /* Invalid reference object */
 
                                 ACPI_ERROR((AE_INFO,
-                                            "Unknown target_type %X in Index/Reference obj %p",
+                                            "Unknown TargetType %X in Index/Reference obj %p",
                                             stack_desc->reference.target_type,
                                             stack_desc));
                                 status = AE_AML_INTERNAL;
@@ -257,10 +257,24 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
 
                 case AML_INT_NAMEPATH_OP:       /* Reference to a named object */
 
-                        /* Get the object pointed to by the namespace node */
+                        /* Dereference the name */
+
+                        if ((stack_desc->reference.node->type ==
+                             ACPI_TYPE_DEVICE)
+                            || (stack_desc->reference.node->type ==
+                                ACPI_TYPE_THERMAL)) {
+
+                                /* These node types do not have 'real' subobjects */
+
+                                *stack_ptr = (void *)stack_desc->reference.node;
+                        } else {
+                                /* Get the object pointed to by the namespace node */
+
+                                *stack_ptr =
+                                    (stack_desc->reference.node)->object;
+                                acpi_ut_add_reference(*stack_ptr);
+                        }
 
-                        *stack_ptr = (stack_desc->reference.node)->object;
-                        acpi_ut_add_reference(*stack_ptr);
                         acpi_ut_remove_reference(stack_desc);
                         break;
 
@@ -293,7 +307,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
         case ACPI_TYPE_LOCAL_INDEX_FIELD:
 
                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "field_read source_desc=%p Type=%X\n",
+                                  "FieldRead SourceDesc=%p Type=%X\n",
                                   stack_desc,
                                   ACPI_GET_OBJECT_TYPE(stack_desc)));
 
@@ -337,7 +351,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
         acpi_object_type type;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_ex_resolve_multiple");
+        ACPI_FUNCTION_TRACE(acpi_ex_resolve_multiple);
 
         /* Operand can be either a namespace node or an operand descriptor */
 
@@ -382,10 +396,16 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
         while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) {
                 switch (obj_desc->reference.opcode) {
                 case AML_REF_OF_OP:
+                case AML_INT_NAMEPATH_OP:
 
                         /* Dereference the reference pointer */
 
-                        node = obj_desc->reference.object;
+                        if (obj_desc->reference.opcode == AML_REF_OF_OP) {
+                                node = obj_desc->reference.object;
+                        } else {        /* AML_INT_NAMEPATH_OP */
+
+                                node = obj_desc->reference.node;
+                        }
 
                         /* All "References" point to a NS node */
 
@@ -401,6 +421,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
 
                         obj_desc = acpi_ns_get_attached_object(node);
                         if (!obj_desc) {
+
                                 /* No object, use the NS node type */
 
                                 type = acpi_ns_get_type(node);
@@ -432,6 +453,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
                          */
                         obj_desc = *(obj_desc->reference.where);
                         if (!obj_desc) {
+
                                 /* NULL package elements are allowed */
 
                                 type = 0;       /* Uninitialized */
@@ -439,39 +461,6 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
                         }
                         break;
 
-                case AML_INT_NAMEPATH_OP:
-
-                        /* Dereference the reference pointer */
-
-                        node = obj_desc->reference.node;
-
-                        /* All "References" point to a NS node */
-
-                        if (ACPI_GET_DESCRIPTOR_TYPE(node) !=
-                            ACPI_DESC_TYPE_NAMED) {
-                                ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]",
-                                            node,
-                                            acpi_ut_get_descriptor_name(node)));
-                                return_ACPI_STATUS(AE_AML_INTERNAL);
-                        }
-
-                        /* Get the attached object */
-
-                        obj_desc = acpi_ns_get_attached_object(node);
-                        if (!obj_desc) {
-                                /* No object, use the NS node type */
-
-                                type = acpi_ns_get_type(node);
-                                goto exit;
-                        }
-
-                        /* Check for circular references */
-
-                        if (obj_desc == operand) {
-                                return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE);
-                        }
-                        break;
-
                 case AML_LOCAL_OP:
                 case AML_ARG_OP:
 
@@ -513,7 +502,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
 
                 case AML_DEBUG_OP:
 
-                        /* The Debug Object is of type "debug_object" */
+                        /* The Debug Object is of type "DebugObject" */
 
                         type = ACPI_TYPE_DEBUG_OBJECT;
                         goto exit;
diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c
index a1c000f5a415..4c93d0972333 100644
--- a/drivers/acpi/executer/exresop.c
+++ b/drivers/acpi/executer/exresop.c
@@ -77,6 +77,7 @@ acpi_ex_check_object_type(acpi_object_type type_needed,
         ACPI_FUNCTION_ENTRY();
 
         if (type_needed == ACPI_TYPE_ANY) {
+
                 /* All types OK, so we don't perform any typechecks */
 
                 return (AE_OK);
@@ -143,7 +144,7 @@ acpi_ex_resolve_operands(u16 opcode,
         acpi_object_type type_needed;
         u16 target_op = 0;
 
-        ACPI_FUNCTION_TRACE_U32("ex_resolve_operands", opcode);
+        ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode);
 
         op_info = acpi_ps_get_opcode_info(opcode);
         if (op_info->class == AML_CLASS_UNKNOWN) {
@@ -158,7 +159,7 @@ acpi_ex_resolve_operands(u16 opcode,
         }
 
         ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                          "Opcode %X [%s] required_operand_types=%8.8X\n",
+                          "Opcode %X [%s] RequiredOperandTypes=%8.8X\n",
                           opcode, op_info->name, arg_types));
 
         /*
@@ -224,6 +225,7 @@ acpi_ex_resolve_operands(u16 opcode,
                         }
 
                         if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) {
+
                                 /* Decode the Reference */
 
                                 op_info = acpi_ps_get_opcode_info(opcode);
@@ -247,7 +249,7 @@ acpi_ex_resolve_operands(u16 opcode,
 
                                         ACPI_DEBUG_ONLY_MEMBERS(ACPI_DEBUG_PRINT
                                                                 ((ACPI_DB_EXEC,
-                                                                  "Operand is a Reference, ref_opcode [%s]\n",
+                                                                  "Operand is a Reference, RefOpcode [%s]\n",
                                                                   (acpi_ps_get_opcode_info
                                                                    (obj_desc->
                                                                     reference.
@@ -332,6 +334,7 @@ acpi_ex_resolve_operands(u16 opcode,
                         }
 
                         if (obj_desc->reference.opcode == AML_NAME_OP) {
+
                                 /* Convert a named reference to the actual named object */
 
                                 temp_node = obj_desc->reference.object;
@@ -623,7 +626,7 @@ acpi_ex_resolve_operands(u16 opcode,
 
                         default:
                                 ACPI_ERROR((AE_INFO,
-                                            "Needed [Region/region_field], found [%s] %p",
+                                            "Needed [Region/RegionField], found [%s] %p",
                                             acpi_ut_get_object_type_name
                                             (obj_desc), obj_desc));
 
@@ -662,6 +665,7 @@ acpi_ex_resolve_operands(u16 opcode,
                                 }
 
                                 if (target_op == AML_DEBUG_OP) {
+
                                         /* Allow store of any object to the Debug object */
 
                                         break;
diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c
index 3f020c0e2b95..0456405ba019 100644
--- a/drivers/acpi/executer/exstore.c
+++ b/drivers/acpi/executer/exstore.c
@@ -82,7 +82,7 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 {
         u32 i;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_do_debug_object", source_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
 
         ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s",
                               level, " "));
@@ -245,7 +245,7 @@ acpi_ex_store(union acpi_operand_object *source_desc,
         acpi_status status = AE_OK;
         union acpi_operand_object *ref_desc = dest_desc;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_store", dest_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_store, dest_desc);
 
         /* Validate parameters */
 
@@ -297,7 +297,7 @@ acpi_ex_store(union acpi_operand_object *source_desc,
 
                 ACPI_DUMP_STACK_ENTRY(source_desc);
                 ACPI_DUMP_STACK_ENTRY(dest_desc);
-                ACPI_DUMP_OPERANDS(&dest_desc, ACPI_IMODE_EXECUTE, "ex_store",
+                ACPI_DUMP_OPERANDS(&dest_desc, ACPI_IMODE_EXECUTE, "ExStore",
                                    2,
                                    "Target is not a Reference or Constant object");
 
@@ -396,7 +396,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc,
         u8 value = 0;
         u32 i;
 
-        ACPI_FUNCTION_TRACE("ex_store_object_to_index");
+        ACPI_FUNCTION_TRACE(ex_store_object_to_index);
 
         /*
          * Destination must be a reference pointer, and
@@ -423,6 +423,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc,
                 }
 
                 if (obj_desc) {
+
                         /* Decrement reference count by the ref count of the parent package */
 
                         for (i = 0; i < ((union acpi_operand_object *)
@@ -502,8 +503,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc,
                 break;
 
         default:
-                ACPI_ERROR((AE_INFO,
-                            "Target is not a Package or buffer_field"));
+                ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField"));
                 status = AE_AML_OPERAND_TYPE;
                 break;
         }
@@ -548,7 +548,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
         union acpi_operand_object *new_desc;
         acpi_object_type target_type;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_store_object_to_node", source_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_node, source_desc);
 
         /* Get current type of the node, and object attached to Node */
 
@@ -572,6 +572,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
         /* If no implicit conversion, drop into the default case below */
 
         if ((!implicit_conversion) || (walk_state->opcode == AML_COPY_OP)) {
+
                 /* Force execution of default (no implicit conversion) */
 
                 target_type = ACPI_TYPE_ANY;
diff --git a/drivers/acpi/executer/exstoren.c b/drivers/acpi/executer/exstoren.c
index 42967baf760d..591aaf0e18b3 100644
--- a/drivers/acpi/executer/exstoren.c
+++ b/drivers/acpi/executer/exstoren.c
@@ -72,7 +72,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr,
         union acpi_operand_object *source_desc = *source_desc_ptr;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ex_resolve_object");
+        ACPI_FUNCTION_TRACE(ex_resolve_object);
 
         /* Ensure we have a Target that can be stored to */
 
@@ -97,6 +97,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr,
                  */
                 if (ACPI_GET_OBJECT_TYPE(source_desc) ==
                     ACPI_TYPE_LOCAL_REFERENCE) {
+
                         /* Resolve a reference object first */
 
                         status =
@@ -121,6 +122,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr,
                     !((ACPI_GET_OBJECT_TYPE(source_desc) ==
                        ACPI_TYPE_LOCAL_REFERENCE)
                       && (source_desc->reference.opcode == AML_LOAD_OP))) {
+
                         /* Conversion successful but still not a valid type */
 
                         ACPI_ERROR((AE_INFO,
@@ -199,7 +201,7 @@ acpi_ex_store_object_to_object(union acpi_operand_object *source_desc,
         union acpi_operand_object *actual_src_desc;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_store_object_to_object", source_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_object, source_desc);
 
         actual_src_desc = source_desc;
         if (!dest_desc) {
@@ -289,6 +291,7 @@ acpi_ex_store_object_to_object(union acpi_operand_object *source_desc,
         }
 
         if (actual_src_desc != source_desc) {
+
                 /* Delete the intermediate (temporary) source object */
 
                 acpi_ut_remove_reference(actual_src_desc);
diff --git a/drivers/acpi/executer/exstorob.c b/drivers/acpi/executer/exstorob.c
index 6ab707087750..99ebe5adfcda 100644
--- a/drivers/acpi/executer/exstorob.c
+++ b/drivers/acpi/executer/exstorob.c
@@ -67,7 +67,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
         u32 length;
         u8 *buffer;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_store_buffer_to_buffer", source_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc);
 
         /* We know that source_desc is a buffer by now */
 
@@ -80,7 +80,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
          */
         if ((target_desc->buffer.length == 0) ||
             (target_desc->common.flags & AOPOBJ_STATIC_POINTER)) {
-                target_desc->buffer.pointer = ACPI_MEM_ALLOCATE(length);
+                target_desc->buffer.pointer = ACPI_ALLOCATE(length);
                 if (!target_desc->buffer.pointer) {
                         return_ACPI_STATUS(AE_NO_MEMORY);
                 }
@@ -91,6 +91,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
         /* Copy source buffer to target buffer */
 
         if (length <= target_desc->buffer.length) {
+
                 /* Clear existing buffer and copy in the new one */
 
                 ACPI_MEMSET(target_desc->buffer.pointer, 0,
@@ -102,7 +103,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
                  * NOTE: ACPI versions up to 3.0 specified that the buffer must be
                  * truncated if the string is smaller than the buffer.  However, "other"
                  * implementations of ACPI never did this and thus became the defacto
-                 * standard. ACPi 3.0_a changes this behavior such that the buffer
+                 * standard. ACPI 3.0_a changes this behavior such that the buffer
                  * is no longer truncated.
                  */
 
@@ -113,6 +114,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
                  * copy must not truncate the original buffer.
                  */
                 if (original_src_type == ACPI_TYPE_STRING) {
+
                         /* Set the new length of the target */
 
                         target_desc->buffer.length = length;
@@ -156,7 +158,7 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
         u32 length;
         u8 *buffer;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_store_string_to_string", source_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc);
 
         /* We know that source_desc is a string by now */
 
@@ -183,13 +185,14 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
                  */
                 if (target_desc->string.pointer &&
                     (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
+
                         /* Only free if not a pointer into the DSDT */
 
-                        ACPI_MEM_FREE(target_desc->string.pointer);
+                        ACPI_FREE(target_desc->string.pointer);
                 }
 
-                target_desc->string.pointer = ACPI_MEM_CALLOCATE((acpi_size)
-                                                                 length + 1);
+                target_desc->string.pointer = ACPI_ALLOCATE_ZEROED((acpi_size)
+                                                                   length + 1);
                 if (!target_desc->string.pointer) {
                         return_ACPI_STATUS(AE_NO_MEMORY);
                 }
diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c
index ea9144f42e1f..52beee3674a0 100644
--- a/drivers/acpi/executer/exsystem.c
+++ b/drivers/acpi/executer/exsystem.c
@@ -68,7 +68,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout)
         acpi_status status;
         acpi_status status2;
 
-        ACPI_FUNCTION_TRACE("ex_system_wait_semaphore");
+        ACPI_FUNCTION_TRACE(ex_system_wait_semaphore);
 
         status = acpi_os_wait_semaphore(semaphore, 1, 0);
         if (ACPI_SUCCESS(status)) {
@@ -76,6 +76,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout)
         }
 
         if (status == AE_TIME) {
+
                 /* We must wait, so unlock the interpreter */
 
                 acpi_ex_exit_interpreter();
@@ -90,6 +91,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout)
 
                 status2 = acpi_ex_enter_interpreter();
                 if (ACPI_FAILURE(status2)) {
+
                         /* Report fatal error, could not acquire interpreter */
 
                         return_ACPI_STATUS(status2);
@@ -191,7 +193,7 @@ acpi_ex_system_acquire_mutex(union acpi_operand_object * time_desc,
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_PTR("ex_system_acquire_mutex", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ex_system_acquire_mutex, obj_desc);
 
         if (!obj_desc) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -229,7 +231,7 @@ acpi_status acpi_ex_system_release_mutex(union acpi_operand_object *obj_desc)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ex_system_release_mutex");
+        ACPI_FUNCTION_TRACE(ex_system_release_mutex);
 
         if (!obj_desc) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -263,7 +265,7 @@ acpi_status acpi_ex_system_signal_event(union acpi_operand_object *obj_desc)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ex_system_signal_event");
+        ACPI_FUNCTION_TRACE(ex_system_signal_event);
 
         if (obj_desc) {
                 status = acpi_os_signal_semaphore(obj_desc->event.semaphore, 1);
@@ -293,7 +295,7 @@ acpi_ex_system_wait_event(union acpi_operand_object *time_desc,
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ex_system_wait_event");
+        ACPI_FUNCTION_TRACE(ex_system_wait_event);
 
         if (obj_desc) {
                 status =
diff --git a/drivers/acpi/executer/exutils.c b/drivers/acpi/executer/exutils.c
index f73a61aeb7ec..982c8b65876f 100644
--- a/drivers/acpi/executer/exutils.c
+++ b/drivers/acpi/executer/exutils.c
@@ -87,9 +87,9 @@ acpi_status acpi_ex_enter_interpreter(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ex_enter_interpreter");
+        ACPI_FUNCTION_TRACE(ex_enter_interpreter);
 
-        status = acpi_ut_acquire_mutex(ACPI_MTX_EXECUTE);
+        status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
         if (ACPI_FAILURE(status)) {
                 ACPI_ERROR((AE_INFO, "Could not acquire interpreter mutex"));
         }
@@ -123,9 +123,9 @@ void acpi_ex_exit_interpreter(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ex_exit_interpreter");
+        ACPI_FUNCTION_TRACE(ex_exit_interpreter);
 
-        status = acpi_ut_release_mutex(ACPI_MTX_EXECUTE);
+        status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
         if (ACPI_FAILURE(status)) {
                 ACPI_ERROR((AE_INFO, "Could not release interpreter mutex"));
         }
@@ -189,11 +189,12 @@ u8 acpi_ex_acquire_global_lock(u32 field_flags)
         u8 locked = FALSE;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ex_acquire_global_lock");
+        ACPI_FUNCTION_TRACE(ex_acquire_global_lock);
 
         /* Only attempt lock if the always_lock bit is set */
 
         if (field_flags & AML_FIELD_LOCK_RULE_MASK) {
+
                 /* We should attempt to get the lock, wait forever */
 
                 status = acpi_ev_acquire_global_lock(ACPI_WAIT_FOREVER);
@@ -225,15 +226,17 @@ void acpi_ex_release_global_lock(u8 locked_by_me)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ex_release_global_lock");
+        ACPI_FUNCTION_TRACE(ex_release_global_lock);
 
         /* Only attempt unlock if the caller locked it */
 
         if (locked_by_me) {
+
                 /* OK, now release the lock */
 
                 status = acpi_ev_release_global_lock();
                 if (ACPI_FAILURE(status)) {
+
                         /* Report the error, but there isn't much else we can do */
 
                         ACPI_EXCEPTION((AE_INFO, status,
@@ -263,7 +266,7 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base)
         u32 num_digits;
         acpi_integer current_value;
 
-        ACPI_FUNCTION_TRACE("ex_digits_needed");
+        ACPI_FUNCTION_TRACE(ex_digits_needed);
 
         /* acpi_integer is unsigned, so we don't worry about a '-' prefix */
 
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index e8165c4f162a..1cd25784b7a4 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -48,6 +48,8 @@ MODULE_LICENSE("GPL");
 
 static int acpi_fan_add(struct acpi_device *device);
 static int acpi_fan_remove(struct acpi_device *device, int type);
+static int acpi_fan_suspend(struct acpi_device *device, int state);
+static int acpi_fan_resume(struct acpi_device *device, int state);
 
 static struct acpi_driver acpi_fan_driver = {
         .name = ACPI_FAN_DRIVER_NAME,
@@ -56,6 +58,8 @@ static struct acpi_driver acpi_fan_driver = {
         .ops = {
                 .add = acpi_fan_add,
                 .remove = acpi_fan_remove,
+                .suspend = acpi_fan_suspend,
+                .resume = acpi_fan_resume,
                 },
 };
 
@@ -206,6 +210,10 @@ static int acpi_fan_add(struct acpi_device *device)
                 goto end;
         }
 
+        device->flags.force_power_state = 1;
+        acpi_bus_set_power(device->handle, state);
+        device->flags.force_power_state = 0;
+
         result = acpi_fan_add_fs(device);
         if (result)
                 goto end;
@@ -239,6 +247,38 @@ static int acpi_fan_remove(struct acpi_device *device, int type)
         return_VALUE(0);
 }
 
+static int acpi_fan_suspend(struct acpi_device *device, int state)
+{
+        if (!device)
+                return -EINVAL;
+
+        acpi_bus_set_power(device->handle, ACPI_STATE_D0);
+
+        return AE_OK;
+}
+
+static int acpi_fan_resume(struct acpi_device *device, int state)
+{
+        int result = 0;
+        int power_state = 0;
+
+        if (!device)
+                return -EINVAL;
+
+        result = acpi_bus_get_power(device->handle, &power_state);
+        if (result) {
+                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+                                  "Error reading fan power state\n"));
+                return result;
+        }
+
+        device->flags.force_power_state = 1;
+        acpi_bus_set_power(device->handle, power_state);
+        device->flags.force_power_state = 0;
+
+        return result;
+}
+
 static int __init acpi_fan_init(void)
 {
         int result = 0;
diff --git a/drivers/acpi/hardware/hwacpi.c b/drivers/acpi/hardware/hwacpi.c
index ea2f13271ff1..de50fab2a910 100644
--- a/drivers/acpi/hardware/hwacpi.c
+++ b/drivers/acpi/hardware/hwacpi.c
@@ -63,7 +63,7 @@ acpi_status acpi_hw_initialize(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("hw_initialize");
+        ACPI_FUNCTION_TRACE(hw_initialize);
 
         /* We must have the ACPI tables by the time we get here */
 
@@ -100,7 +100,7 @@ acpi_status acpi_hw_set_mode(u32 mode)
         acpi_status status;
         u32 retry;
 
-        ACPI_FUNCTION_TRACE("hw_set_mode");
+        ACPI_FUNCTION_TRACE(hw_set_mode);
 
         /*
          * ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
@@ -198,7 +198,7 @@ u32 acpi_hw_get_mode(void)
         acpi_status status;
         u32 value;
 
-        ACPI_FUNCTION_TRACE("hw_get_mode");
+        ACPI_FUNCTION_TRACE(hw_get_mode);
 
         /*
          * ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
diff --git a/drivers/acpi/hardware/hwgpe.c b/drivers/acpi/hardware/hwgpe.c
index d84942d22dd5..608a3a60ee11 100644
--- a/drivers/acpi/hardware/hwgpe.c
+++ b/drivers/acpi/hardware/hwgpe.c
@@ -214,6 +214,7 @@ acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info,
         /* Examine each GPE Register within the block */
 
         for (i = 0; i < gpe_block->register_count; i++) {
+
                 /* Disable all GPEs in this register */
 
                 status = acpi_hw_low_level_write(8, 0x00,
@@ -250,6 +251,7 @@ acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info,
         /* Examine each GPE Register within the block */
 
         for (i = 0; i < gpe_block->register_count; i++) {
+
                 /* Clear status on all GPEs in this register */
 
                 status = acpi_hw_low_level_write(8, 0xFF,
@@ -368,7 +370,7 @@ acpi_status acpi_hw_disable_all_gpes(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("hw_disable_all_gpes");
+        ACPI_FUNCTION_TRACE(hw_disable_all_gpes);
 
         status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block);
         status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block);
@@ -391,7 +393,7 @@ acpi_status acpi_hw_enable_all_runtime_gpes(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("hw_enable_all_runtime_gpes");
+        ACPI_FUNCTION_TRACE(hw_enable_all_runtime_gpes);
 
         status = acpi_ev_walk_gpe_list(acpi_hw_enable_runtime_gpe_block);
         return_ACPI_STATUS(status);
@@ -413,7 +415,7 @@ acpi_status acpi_hw_enable_all_wakeup_gpes(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("hw_enable_all_wakeup_gpes");
+        ACPI_FUNCTION_TRACE(hw_enable_all_wakeup_gpes);
 
         status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block);
         return_ACPI_STATUS(status);
diff --git a/drivers/acpi/hardware/hwregs.c b/drivers/acpi/hardware/hwregs.c
index e1fe75498415..ae142de19507 100644
--- a/drivers/acpi/hardware/hwregs.c
+++ b/drivers/acpi/hardware/hwregs.c
@@ -43,8 +43,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 #include <acpi/acevents.h>
@@ -63,23 +61,21 @@ ACPI_MODULE_NAME("hwregs")
  * DESCRIPTION: Clears all fixed and general purpose status bits
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
+ * NOTE: TBD: Flags parameter is obsolete, to be removed
+ *
  ******************************************************************************/
 acpi_status acpi_hw_clear_acpi_status(u32 flags)
 {
         acpi_status status;
+        acpi_cpu_flags lock_flags = 0;
 
-        ACPI_FUNCTION_TRACE("hw_clear_acpi_status");
+        ACPI_FUNCTION_TRACE(hw_clear_acpi_status);
 
         ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n",
                           ACPI_BITMASK_ALL_FIXED_STATUS,
                           (u16) acpi_gbl_FADT->xpm1a_evt_blk.address));
 
-        if (flags & ACPI_MTX_LOCK) {
-                status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE);
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-        }
+        lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
 
         status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK,
                                         ACPI_REGISTER_PM1_STATUS,
@@ -104,9 +100,7 @@ acpi_status acpi_hw_clear_acpi_status(u32 flags)
         status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block);
 
       unlock_and_exit:
-        if (flags & ACPI_MTX_LOCK) {
-                (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE);
-        }
+        acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
         return_ACPI_STATUS(status);
 }
 
@@ -129,10 +123,9 @@ acpi_status
 acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b)
 {
         acpi_status status = AE_OK;
-        struct acpi_parameter_info info;
-        char *sleep_state_name;
+        struct acpi_evaluate_info *info;
 
-        ACPI_FUNCTION_TRACE("acpi_get_sleep_type_data");
+        ACPI_FUNCTION_TRACE(acpi_get_sleep_type_data);
 
         /* Validate parameters */
 
@@ -140,34 +133,39 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b)
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        /* Evaluate the namespace object containing the values for this state */
+        /* Allocate the evaluation information block */
+
+        info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+        if (!info) {
+                return_ACPI_STATUS(AE_NO_MEMORY);
+        }
 
-        info.parameters = NULL;
-        info.return_object = NULL;
-        sleep_state_name =
+        info->pathname =
             ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]);
 
-        status = acpi_ns_evaluate_by_name(sleep_state_name, &info);
+        /* Evaluate the namespace object containing the values for this state */
+
+        status = acpi_ns_evaluate(info);
         if (ACPI_FAILURE(status)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "%s while evaluating sleep_state [%s]\n",
+                                  "%s while evaluating SleepState [%s]\n",
                                   acpi_format_exception(status),
-                                  sleep_state_name));
+                                  info->pathname));
 
-                return_ACPI_STATUS(status);
+                goto cleanup;
         }
 
         /* Must have a return object */
 
-        if (!info.return_object) {
+        if (!info->return_object) {
                 ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]",
-                            sleep_state_name));
+                            info->pathname));
                 status = AE_NOT_EXIST;
         }
 
         /* It must be of type Package */
 
-        else if (ACPI_GET_OBJECT_TYPE(info.return_object) != ACPI_TYPE_PACKAGE) {
+        else if (ACPI_GET_OBJECT_TYPE(info->return_object) != ACPI_TYPE_PACKAGE) {
                 ACPI_ERROR((AE_INFO,
                             "Sleep State return object is not a Package"));
                 status = AE_AML_OPERAND_TYPE;
@@ -180,7 +178,7 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b)
          * by BIOS vendors seems to be to have 2 or more elements, at least
          * one per sleep type (A/B).
          */
-        else if (info.return_object->package.count < 2) {
+        else if (info->return_object->package.count < 2) {
                 ACPI_ERROR((AE_INFO,
                             "Sleep State return package does not have at least two elements"));
                 status = AE_AML_NO_OPERAND;
@@ -188,39 +186,42 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b)
 
         /* The first two elements must both be of type Integer */
 
-        else if ((ACPI_GET_OBJECT_TYPE(info.return_object->package.elements[0])
+        else if ((ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[0])
                   != ACPI_TYPE_INTEGER) ||
-                 (ACPI_GET_OBJECT_TYPE(info.return_object->package.elements[1])
+                 (ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[1])
                   != ACPI_TYPE_INTEGER)) {
                 ACPI_ERROR((AE_INFO,
                             "Sleep State return package elements are not both Integers (%s, %s)",
-                            acpi_ut_get_object_type_name(info.return_object->
+                            acpi_ut_get_object_type_name(info->return_object->
                                                          package.elements[0]),
-                            acpi_ut_get_object_type_name(info.return_object->
+                            acpi_ut_get_object_type_name(info->return_object->
                                                          package.elements[1])));
                 status = AE_AML_OPERAND_TYPE;
         } else {
                 /* Valid _Sx_ package size, type, and value */
 
                 *sleep_type_a = (u8)
-                    (info.return_object->package.elements[0])->integer.value;
+                    (info->return_object->package.elements[0])->integer.value;
                 *sleep_type_b = (u8)
-                    (info.return_object->package.elements[1])->integer.value;
+                    (info->return_object->package.elements[1])->integer.value;
         }
 
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status,
-                                "While evaluating sleep_state [%s], bad Sleep object %p type %s",
-                                sleep_state_name, info.return_object,
-                                acpi_ut_get_object_type_name(info.
+                                "While evaluating SleepState [%s], bad Sleep object %p type %s",
+                                info->pathname, info->return_object,
+                                acpi_ut_get_object_type_name(info->
                                                              return_object)));
         }
 
-        acpi_ut_remove_reference(info.return_object);
+        acpi_ut_remove_reference(info->return_object);
+
+      cleanup:
+        ACPI_FREE(info);
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_get_sleep_type_data);
+ACPI_EXPORT_SYMBOL(acpi_get_sleep_type_data)
 
 /*******************************************************************************
  *
@@ -233,13 +234,12 @@ EXPORT_SYMBOL(acpi_get_sleep_type_data);
  * DESCRIPTION: Map register_id into a register bitmask.
  *
  ******************************************************************************/
-
 struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id)
 {
         ACPI_FUNCTION_ENTRY();
 
         if (register_id > ACPI_BITREG_MAX) {
-                ACPI_ERROR((AE_INFO, "Invalid bit_register ID: %X",
+                ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X",
                             register_id));
                 return (NULL);
         }
@@ -260,6 +260,8 @@ struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id)
  *
  * DESCRIPTION: ACPI bit_register read function.
  *
+ * NOTE: TBD: Flags parameter is obsolete, to be removed
+ *
  ******************************************************************************/
 
 acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags)
@@ -268,7 +270,7 @@ acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags)
         struct acpi_bit_register_info *bit_reg_info;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_get_register");
+        ACPI_FUNCTION_TRACE(acpi_get_register);
 
         /* Get the info structure corresponding to the requested ACPI Register */
 
@@ -277,24 +279,14 @@ acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags)
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        if (flags & ACPI_MTX_LOCK) {
-                status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE);
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-        }
-
         /* Read from the register */
 
-        status = acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK,
+        status = acpi_hw_register_read(ACPI_MTX_LOCK,
                                        bit_reg_info->parent_register,
                                        &register_value);
 
-        if (flags & ACPI_MTX_LOCK) {
-                (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE);
-        }
-
         if (ACPI_SUCCESS(status)) {
+
                 /* Normalize the value that was read */
 
                 register_value =
@@ -311,7 +303,7 @@ acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_get_register);
+ACPI_EXPORT_SYMBOL(acpi_get_register)
 
 /*******************************************************************************
  *
@@ -326,31 +318,28 @@ EXPORT_SYMBOL(acpi_get_register);
  *
  * DESCRIPTION: ACPI Bit Register write function.
  *
+ * NOTE: TBD: Flags parameter is obsolete, to be removed
+ *
  ******************************************************************************/
-
 acpi_status acpi_set_register(u32 register_id, u32 value, u32 flags)
 {
         u32 register_value = 0;
         struct acpi_bit_register_info *bit_reg_info;
         acpi_status status;
+        acpi_cpu_flags lock_flags;
 
-        ACPI_FUNCTION_TRACE_U32("acpi_set_register", register_id);
+        ACPI_FUNCTION_TRACE_U32(acpi_set_register, register_id);
 
         /* Get the info structure corresponding to the requested ACPI Register */
 
         bit_reg_info = acpi_hw_get_bit_register_info(register_id);
         if (!bit_reg_info) {
-                ACPI_ERROR((AE_INFO, "Bad ACPI HW register_id: %X",
+                ACPI_ERROR((AE_INFO, "Bad ACPI HW RegisterId: %X",
                             register_id));
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        if (flags & ACPI_MTX_LOCK) {
-                status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE);
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-        }
+        lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
 
         /* Always do a register read first so we can insert the new bits  */
 
@@ -458,9 +447,7 @@ acpi_status acpi_set_register(u32 register_id, u32 value, u32 flags)
 
       unlock_and_exit:
 
-        if (flags & ACPI_MTX_LOCK) {
-                (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE);
-        }
+        acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
 
         /* Normalize the value that was read */
 
@@ -474,7 +461,7 @@ acpi_status acpi_set_register(u32 register_id, u32 value, u32 flags)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_set_register);
+ACPI_EXPORT_SYMBOL(acpi_set_register)
 
 /******************************************************************************
  *
@@ -490,21 +477,18 @@ EXPORT_SYMBOL(acpi_set_register);
  *              given offset.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_hw_register_read(u8 use_lock, u32 register_id, u32 * return_value)
 {
         u32 value1 = 0;
         u32 value2 = 0;
         acpi_status status;
+        acpi_cpu_flags lock_flags = 0;
 
-        ACPI_FUNCTION_TRACE("hw_register_read");
+        ACPI_FUNCTION_TRACE(hw_register_read);
 
         if (ACPI_MTX_LOCK == use_lock) {
-                status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE);
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
+                lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
         }
 
         switch (register_id) {
@@ -582,7 +566,7 @@ acpi_hw_register_read(u8 use_lock, u32 register_id, u32 * return_value)
 
       unlock_and_exit:
         if (ACPI_MTX_LOCK == use_lock) {
-                (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE);
+                acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
         }
 
         if (ACPI_SUCCESS(status)) {
@@ -610,14 +594,12 @@ acpi_hw_register_read(u8 use_lock, u32 register_id, u32 * return_value)
 acpi_status acpi_hw_register_write(u8 use_lock, u32 register_id, u32 value)
 {
         acpi_status status;
+        acpi_cpu_flags lock_flags = 0;
 
-        ACPI_FUNCTION_TRACE("hw_register_write");
+        ACPI_FUNCTION_TRACE(hw_register_write);
 
         if (ACPI_MTX_LOCK == use_lock) {
-                status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE);
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
+                lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
         }
 
         switch (register_id) {
@@ -707,7 +689,7 @@ acpi_status acpi_hw_register_write(u8 use_lock, u32 register_id, u32 value)
 
       unlock_and_exit:
         if (ACPI_MTX_LOCK == use_lock) {
-                (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE);
+                acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
         }
 
         return_ACPI_STATUS(status);
@@ -733,7 +715,7 @@ acpi_hw_low_level_read(u32 width, u32 * value, struct acpi_generic_address *reg)
         u64 address;
         acpi_status status;
 
-        ACPI_FUNCTION_NAME("hw_low_level_read");
+        ACPI_FUNCTION_NAME(hw_low_level_read);
 
         /*
          * Must have a valid pointer to a GAS structure, and
@@ -805,7 +787,7 @@ acpi_hw_low_level_write(u32 width, u32 value, struct acpi_generic_address * reg)
         u64 address;
         acpi_status status;
 
-        ACPI_FUNCTION_NAME("hw_low_level_write");
+        ACPI_FUNCTION_NAME(hw_low_level_write);
 
         /*
          * Must have a valid pointer to a GAS structure, and
diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index 89269272fd62..8bb43cae60c2 100644
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -42,7 +42,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
 #include <acpi/acpi.h>
 
 #define _COMPONENT          ACPI_HARDWARE
@@ -64,7 +63,7 @@ acpi_status
 acpi_set_firmware_waking_vector(acpi_physical_address physical_address)
 {
 
-        ACPI_FUNCTION_TRACE("acpi_set_firmware_waking_vector");
+        ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
 
         /* Set the vector */
 
@@ -79,6 +78,8 @@ acpi_set_firmware_waking_vector(acpi_physical_address physical_address)
         return_ACPI_STATUS(AE_OK);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_firmware_waking_vector
@@ -92,13 +93,12 @@ acpi_set_firmware_waking_vector(acpi_physical_address physical_address)
  * DESCRIPTION: Access function for the firmware_waking_vector field in FACS
  *
  ******************************************************************************/
-
 #ifdef ACPI_FUTURE_USAGE
 acpi_status
 acpi_get_firmware_waking_vector(acpi_physical_address * physical_address)
 {
 
-        ACPI_FUNCTION_TRACE("acpi_get_firmware_waking_vector");
+        ACPI_FUNCTION_TRACE(acpi_get_firmware_waking_vector);
 
         if (!physical_address) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -118,6 +118,8 @@ acpi_get_firmware_waking_vector(acpi_physical_address * physical_address)
 
         return_ACPI_STATUS(AE_OK);
 }
+
+ACPI_EXPORT_SYMBOL(acpi_get_firmware_waking_vector)
 #endif
 
 /*******************************************************************************
@@ -134,14 +136,13 @@ acpi_get_firmware_waking_vector(acpi_physical_address * physical_address)
  *              various OS-specific tasks between the two steps.
  *
  ******************************************************************************/
-
 acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
 {
         acpi_status status;
         struct acpi_object_list arg_list;
         union acpi_object arg;
 
-        ACPI_FUNCTION_TRACE("acpi_enter_sleep_state_prep");
+        ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep);
 
         /*
          * _PSW methods could be run here to enable wake-on keyboard, LAN, etc.
@@ -206,6 +207,8 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
         return_ACPI_STATUS(AE_OK);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enter_sleep_state
@@ -218,7 +221,6 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
-
 acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 {
         u32 PM1Acontrol;
@@ -228,7 +230,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
         u32 in_value;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_enter_sleep_state");
+        ACPI_FUNCTION_TRACE(acpi_enter_sleep_state);
 
         if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) ||
             (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) {
@@ -378,7 +380,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
         return_ACPI_STATUS(AE_OK);
 }
 
-EXPORT_SYMBOL(acpi_enter_sleep_state);
+ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
 
 /*******************************************************************************
  *
@@ -392,13 +394,12 @@ EXPORT_SYMBOL(acpi_enter_sleep_state);
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
-
 acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
 {
         u32 in_value;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_enter_sleep_state_s4bios");
+        ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios);
 
         status =
             acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1, ACPI_MTX_DO_NOT_LOCK);
@@ -443,7 +444,7 @@ acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
         return_ACPI_STATUS(AE_OK);
 }
 
-EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios);
+ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
 
 /*******************************************************************************
  *
@@ -457,7 +458,6 @@ EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios);
  *              Called with interrupts ENABLED.
  *
  ******************************************************************************/
-
 acpi_status acpi_leave_sleep_state(u8 sleep_state)
 {
         struct acpi_object_list arg_list;
@@ -468,7 +468,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
         u32 PM1Acontrol;
         u32 PM1Bcontrol;
 
-        ACPI_FUNCTION_TRACE("acpi_leave_sleep_state");
+        ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
 
         /*
          * Set SLP_TYPE and SLP_EN to state S0.
@@ -490,6 +490,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
                                                ACPI_REGISTER_PM1_CONTROL,
                                                &PM1Acontrol);
                 if (ACPI_SUCCESS(status)) {
+
                         /* Clear SLP_EN and SLP_TYP fields */
 
                         PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask |
@@ -583,3 +584,5 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
 
         return_ACPI_STATUS(status);
 }
+
+ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state)
diff --git a/drivers/acpi/hardware/hwtimer.c b/drivers/acpi/hardware/hwtimer.c
index fc10b7cb456f..c4ec47c939fd 100644
--- a/drivers/acpi/hardware/hwtimer.c
+++ b/drivers/acpi/hardware/hwtimer.c
@@ -42,7 +42,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
 #include <acpi/acpi.h>
 
 #define _COMPONENT          ACPI_HARDWARE
@@ -61,13 +60,13 @@ ACPI_MODULE_NAME("hwtimer")
  ******************************************************************************/
 acpi_status acpi_get_timer_resolution(u32 * resolution)
 {
-        ACPI_FUNCTION_TRACE("acpi_get_timer_resolution");
+        ACPI_FUNCTION_TRACE(acpi_get_timer_resolution);
 
         if (!resolution) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        if (0 == acpi_gbl_FADT->tmr_val_ext) {
+        if (acpi_gbl_FADT->tmr_val_ext == 0) {
                 *resolution = 24;
         } else {
                 *resolution = 32;
@@ -76,6 +75,8 @@ acpi_status acpi_get_timer_resolution(u32 * resolution)
         return_ACPI_STATUS(AE_OK);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_get_timer_resolution)
+
 /******************************************************************************
  *
  * FUNCTION:    acpi_get_timer
@@ -87,12 +88,11 @@ acpi_status acpi_get_timer_resolution(u32 * resolution)
  * DESCRIPTION: Obtains current value of ACPI PM Timer (in ticks).
  *
  ******************************************************************************/
-
 acpi_status acpi_get_timer(u32 * ticks)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_get_timer");
+        ACPI_FUNCTION_TRACE(acpi_get_timer);
 
         if (!ticks) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -103,7 +103,7 @@ acpi_status acpi_get_timer(u32 * ticks)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_get_timer);
+ACPI_EXPORT_SYMBOL(acpi_get_timer)
 
 /******************************************************************************
  *
@@ -133,7 +133,6 @@ EXPORT_SYMBOL(acpi_get_timer);
  *              2**32 Ticks / 3,600,000 Ticks/Sec = 1193 sec or 19.88 minutes
  *
  ******************************************************************************/
-
 acpi_status
 acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
 {
@@ -141,7 +140,7 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
         u32 delta_ticks;
         acpi_integer quotient;
 
-        ACPI_FUNCTION_TRACE("acpi_get_timer_duration");
+        ACPI_FUNCTION_TRACE(acpi_get_timer_duration);
 
         if (!time_elapsed) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -154,7 +153,8 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
         if (start_ticks < end_ticks) {
                 delta_ticks = end_ticks - start_ticks;
         } else if (start_ticks > end_ticks) {
-                if (0 == acpi_gbl_FADT->tmr_val_ext) {
+                if (acpi_gbl_FADT->tmr_val_ext == 0) {
+
                         /* 24-bit Timer */
 
                         delta_ticks =
@@ -183,4 +183,4 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_get_timer_duration);
+ACPI_EXPORT_SYMBOL(acpi_get_timer_duration)
diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c
index 2e2e4051dfa7..c25b2b92edcf 100644
--- a/drivers/acpi/hotkey.c
+++ b/drivers/acpi/hotkey.c
@@ -723,6 +723,8 @@ get_parms(char *config_record,
                 goto do_fail;
         count = tmp1 - tmp;
         *action_handle = (char *)kmalloc(count + 1, GFP_KERNEL);
+        if (!*action_handle)
+                goto do_fail;
         strncpy(*action_handle, tmp, count);
         *(*action_handle + count) = 0;
 
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c
index 262b1f41335a..15fc12482ba0 100644
--- a/drivers/acpi/ibm_acpi.c
+++ b/drivers/acpi/ibm_acpi.c
@@ -567,6 +567,69 @@ static int bluetooth_write(char *buf)
         return 0;
 }
 
+static int wan_supported;
+
+static int wan_init(void)
+{
+        wan_supported = hkey_handle &&
+            acpi_evalf(hkey_handle, NULL, "GWAN", "qv");
+
+        return 0;
+}
+
+static int wan_status(void)
+{
+        int status;
+
+        if (!wan_supported ||
+            !acpi_evalf(hkey_handle, &status, "GWAN", "d"))
+                status = 0;
+
+        return status;
+}
+
+static int wan_read(char *p)
+{
+        int len = 0;
+        int status = wan_status();
+
+        if (!wan_supported)
+                len += sprintf(p + len, "status:\t\tnot supported\n");
+        else if (!(status & 1))
+                len += sprintf(p + len, "status:\t\tnot installed\n");
+        else {
+                len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1));
+                len += sprintf(p + len, "commands:\tenable, disable\n");
+        }
+
+        return len;
+}
+
+static int wan_write(char *buf)
+{
+        int status = wan_status();
+        char *cmd;
+        int do_cmd = 0;
+
+        if (!wan_supported)
+                return -ENODEV;
+
+        while ((cmd = next_cmd(&buf))) {
+                if (strlencmp(cmd, "enable") == 0) {
+                        status |= 2;
+                } else if (strlencmp(cmd, "disable") == 0) {
+                        status &= ~2;
+                } else
+                        return -EINVAL;
+                do_cmd = 1;
+        }
+
+        if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status))
+                return -EIO;
+
+        return 0;
+}
+
 static int video_supported;
 static int video_orig_autosw;
 
@@ -1563,6 +1626,13 @@ static struct ibm_struct ibms[] = {
          .write = bluetooth_write,
          },
         {
+         .name = "wan",
+         .init = wan_init,
+         .read = wan_read,
+         .write = wan_write,
+         .experimental = 1,
+         },
+        {
          .name = "video",
          .init = video_init,
          .read = video_read,
diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c
index 468244147ec1..d51d68f5dd8d 100644
--- a/drivers/acpi/motherboard.c
+++ b/drivers/acpi/motherboard.c
@@ -37,7 +37,7 @@ ACPI_MODULE_NAME("acpi_motherboard")
 #define ACPI_MB_HID2                    "PNP0C02"
 /**
  * Doesn't care about legacy IO ports, only IO ports beyond 0x1000 are reserved
- * Doesn't care about the failure of 'request_region', since other may reserve 
+ * Doesn't care about the failure of 'request_region', since other may reserve
  * the io ports as well
  */
 #define IS_RESERVED_ADDR(base, len) \
@@ -46,7 +46,7 @@ ACPI_MODULE_NAME("acpi_motherboard")
 /*
  * Clearing the flag (IORESOURCE_BUSY) allows drivers to use
  * the io ports if they really know they can use it, while
- * still preventing hotplug PCI devices from using it. 
+ * still preventing hotplug PCI devices from using it.
  */
 static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data)
 {
@@ -123,49 +123,54 @@ static struct acpi_driver acpi_motherboard_driver2 = {
                 },
 };
 
+static void __init acpi_request_region (struct acpi_generic_address *addr,
+        unsigned int length, char *desc)
+{
+        if (!addr->address || !length)
+                return;
+
+        if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_IO)
+                request_region(addr->address, length, desc);
+        else if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
+                request_mem_region(addr->address, length, desc);
+}
+
 static void __init acpi_reserve_resources(void)
 {
-        if (acpi_gbl_FADT->xpm1a_evt_blk.address && acpi_gbl_FADT->pm1_evt_len)
-                request_region(acpi_gbl_FADT->xpm1a_evt_blk.address,
-                               acpi_gbl_FADT->pm1_evt_len, "PM1a_EVT_BLK");
+        acpi_request_region(&acpi_gbl_FADT->xpm1a_evt_blk,
+                               acpi_gbl_FADT->pm1_evt_len, "ACPI PM1a_EVT_BLK");
 
-        if (acpi_gbl_FADT->xpm1b_evt_blk.address && acpi_gbl_FADT->pm1_evt_len)
-                request_region(acpi_gbl_FADT->xpm1b_evt_blk.address,
-                               acpi_gbl_FADT->pm1_evt_len, "PM1b_EVT_BLK");
+        acpi_request_region(&acpi_gbl_FADT->xpm1b_evt_blk,
+                               acpi_gbl_FADT->pm1_evt_len, "ACPI PM1b_EVT_BLK");
 
-        if (acpi_gbl_FADT->xpm1a_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len)
-                request_region(acpi_gbl_FADT->xpm1a_cnt_blk.address,
-                               acpi_gbl_FADT->pm1_cnt_len, "PM1a_CNT_BLK");
+        acpi_request_region(&acpi_gbl_FADT->xpm1a_cnt_blk,
+                               acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1a_CNT_BLK");
 
-        if (acpi_gbl_FADT->xpm1b_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len)
-                request_region(acpi_gbl_FADT->xpm1b_cnt_blk.address,
-                               acpi_gbl_FADT->pm1_cnt_len, "PM1b_CNT_BLK");
+        acpi_request_region(&acpi_gbl_FADT->xpm1b_cnt_blk,
+                               acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1b_CNT_BLK");
 
-        if (acpi_gbl_FADT->xpm_tmr_blk.address && acpi_gbl_FADT->pm_tm_len == 4)
-                request_region(acpi_gbl_FADT->xpm_tmr_blk.address, 4, "PM_TMR");
+        if (acpi_gbl_FADT->pm_tm_len == 4)
+                acpi_request_region(&acpi_gbl_FADT->xpm_tmr_blk, 4, "ACPI PM_TMR");
 
-        if (acpi_gbl_FADT->xpm2_cnt_blk.address && acpi_gbl_FADT->pm2_cnt_len)
-                request_region(acpi_gbl_FADT->xpm2_cnt_blk.address,
-                               acpi_gbl_FADT->pm2_cnt_len, "PM2_CNT_BLK");
+        acpi_request_region(&acpi_gbl_FADT->xpm2_cnt_blk,
+                               acpi_gbl_FADT->pm2_cnt_len, "ACPI PM2_CNT_BLK");
 
         /* Length of GPE blocks must be a non-negative multiple of 2 */
 
-        if (acpi_gbl_FADT->xgpe0_blk.address && acpi_gbl_FADT->gpe0_blk_len &&
-            !(acpi_gbl_FADT->gpe0_blk_len & 0x1))
-                request_region(acpi_gbl_FADT->xgpe0_blk.address,
-                               acpi_gbl_FADT->gpe0_blk_len, "GPE0_BLK");
+        if (!(acpi_gbl_FADT->gpe0_blk_len & 0x1))
+                acpi_request_region(&acpi_gbl_FADT->xgpe0_blk,
+                               acpi_gbl_FADT->gpe0_blk_len, "ACPI GPE0_BLK");
 
-        if (acpi_gbl_FADT->xgpe1_blk.address && acpi_gbl_FADT->gpe1_blk_len &&
-            !(acpi_gbl_FADT->gpe1_blk_len & 0x1))
-                request_region(acpi_gbl_FADT->xgpe1_blk.address,
-                               acpi_gbl_FADT->gpe1_blk_len, "GPE1_BLK");
+        if (!(acpi_gbl_FADT->gpe1_blk_len & 0x1))
+                acpi_request_region(&acpi_gbl_FADT->xgpe1_blk,
+                               acpi_gbl_FADT->gpe1_blk_len, "ACPI GPE1_BLK");
 }
 
 static int __init acpi_motherboard_init(void)
 {
         acpi_bus_register_driver(&acpi_motherboard_driver1);
         acpi_bus_register_driver(&acpi_motherboard_driver2);
-        /* 
+        /*
          * Guarantee motherboard IO reservation first
          * This module must run after scan.c
          */
diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c
index 1149bc18fb35..48fadade52e2 100644
--- a/drivers/acpi/namespace/nsaccess.c
+++ b/drivers/acpi/namespace/nsaccess.c
@@ -70,7 +70,7 @@ acpi_status acpi_ns_root_initialize(void)
         union acpi_operand_object *obj_desc;
         acpi_string val = NULL;
 
-        ACPI_FUNCTION_TRACE("ns_root_initialize");
+        ACPI_FUNCTION_TRACE(ns_root_initialize);
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
         if (ACPI_FAILURE(status)) {
@@ -98,6 +98,7 @@ acpi_status acpi_ns_root_initialize(void)
                           "Entering predefined entries into namespace\n"));
 
         for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) {
+
                 /* _OSI is optional for now, will be permanent later */
 
                 if (!ACPI_STRCMP(init_val->name, "_OSI")
@@ -156,7 +157,7 @@ acpi_status acpi_ns_root_initialize(void)
 
 #if defined (ACPI_ASL_COMPILER)
 
-                                /* save the parameter count for the i_aSL compiler */
+                                /* Save the parameter count for the i_aSL compiler */
 
                                 new_node->value = obj_desc->method.param_count;
 #else
@@ -258,10 +259,8 @@ acpi_status acpi_ns_root_initialize(void)
         /* Save a handle to "_GPE", it is always present */
 
         if (ACPI_SUCCESS(status)) {
-                status =
-                    acpi_ns_get_node_by_path("\\_GPE", NULL,
-                                             ACPI_NS_NO_UPSEARCH,
-                                             &acpi_gbl_fadt_gpe_device);
+                status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH,
+                                          &acpi_gbl_fadt_gpe_device);
         }
 
         return_ACPI_STATUS(status);
@@ -310,17 +309,17 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
         acpi_object_type type_to_check_for;
         acpi_object_type this_search_type;
         u32 search_parent_flag = ACPI_NS_SEARCH_PARENT;
-        u32 local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND |
-                                    ACPI_NS_SEARCH_PARENT);
+        u32 local_flags;
 
-        ACPI_FUNCTION_TRACE("ns_lookup");
+        ACPI_FUNCTION_TRACE(ns_lookup);
 
         if (!return_node) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        acpi_gbl_ns_lookup_count++;
+        local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT);
         *return_node = ACPI_ENTRY_NOT_FOUND;
+        acpi_gbl_ns_lookup_count++;
 
         if (!acpi_gbl_root_node) {
                 return_ACPI_STATUS(AE_NO_NAMESPACE);
@@ -346,14 +345,17 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
                         return_ACPI_STATUS(AE_AML_INTERNAL);
                 }
 
-                /*
-                 * This node might not be a actual "scope" node (such as a
-                 * Device/Method, etc.)  It could be a Package or other object node.
-                 * Backup up the tree to find the containing scope node.
-                 */
-                while (!acpi_ns_opens_scope(prefix_node->type) &&
-                       prefix_node->type != ACPI_TYPE_ANY) {
-                        prefix_node = acpi_ns_get_parent_node(prefix_node);
+                if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) {
+                        /*
+                         * This node might not be a actual "scope" node (such as a
+                         * Device/Method, etc.)  It could be a Package or other object node.
+                         * Backup up the tree to find the containing scope node.
+                         */
+                        while (!acpi_ns_opens_scope(prefix_node->type) &&
+                               prefix_node->type != ACPI_TYPE_ANY) {
+                                prefix_node =
+                                    acpi_ns_get_parent_node(prefix_node);
+                        }
                 }
         }
 
@@ -365,6 +367,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
          * Begin examination of the actual pathname
          */
         if (!pathname) {
+
                 /* A Null name_path is allowed and refers to the root */
 
                 num_segments = 0;
@@ -389,6 +392,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
                  * to the current scope).
                  */
                 if (*path == (u8) AML_ROOT_PREFIX) {
+
                         /* Pathname is fully qualified, start from the root */
 
                         this_node = acpi_gbl_root_node;
@@ -416,6 +420,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
                         this_node = prefix_node;
                         num_carats = 0;
                         while (*path == (u8) AML_PARENT_PREFIX) {
+
                                 /* Name is fully qualified, no search rules apply */
 
                                 search_parent_flag = ACPI_NS_NO_UPSEARCH;
@@ -430,6 +435,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
                                 num_carats++;
                                 this_node = acpi_ns_get_parent_node(this_node);
                                 if (!this_node) {
+
                                         /* Current scope has no parent scope */
 
                                         ACPI_ERROR((AE_INFO,
@@ -569,6 +575,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
                                              &this_node);
                 if (ACPI_FAILURE(status)) {
                         if (status == AE_NOT_FOUND) {
+
                                 /* Name not found in ACPI namespace */
 
                                 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
@@ -602,10 +609,11 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
                     (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE) &&
                     (this_node->type != ACPI_TYPE_ANY) &&
                     (this_node->type != type_to_check_for)) {
+
                         /* Complain about a type mismatch */
 
                         ACPI_WARNING((AE_INFO,
-                                      "ns_lookup: Type mismatch on %4.4s (%s), searching for (%s)",
+                                      "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)",
                                       ACPI_CAST_PTR(char, &simple_name),
                                       acpi_ut_get_type_name(this_node->type),
                                       acpi_ut_get_type_name
diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c
index 9b871f38b61b..dc3f0739a46b 100644
--- a/drivers/acpi/namespace/nsalloc.c
+++ b/drivers/acpi/namespace/nsalloc.c
@@ -47,9 +47,6 @@
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsalloc")
 
-/* Local prototypes */
-static void acpi_ns_remove_reference(struct acpi_namespace_node *node);
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_create_node
@@ -61,14 +58,13 @@ static void acpi_ns_remove_reference(struct acpi_namespace_node *node);
  * DESCRIPTION: Create a namespace node
  *
  ******************************************************************************/
-
 struct acpi_namespace_node *acpi_ns_create_node(u32 name)
 {
         struct acpi_namespace_node *node;
 
-        ACPI_FUNCTION_TRACE("ns_create_node");
+        ACPI_FUNCTION_TRACE(ns_create_node);
 
-        node = ACPI_MEM_CALLOCATE(sizeof(struct acpi_namespace_node));
+        node = acpi_os_acquire_object(acpi_gbl_namespace_cache);
         if (!node) {
                 return_PTR(NULL);
         }
@@ -76,9 +72,7 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name)
         ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++);
 
         node->name.integer = name;
-        node->reference_count = 1;
         ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED);
-
         return_PTR(node);
 }
 
@@ -100,7 +94,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
         struct acpi_namespace_node *prev_node;
         struct acpi_namespace_node *next_node;
 
-        ACPI_FUNCTION_TRACE_PTR("ns_delete_node", node);
+        ACPI_FUNCTION_TRACE_PTR(ns_delete_node, node);
 
         parent_node = acpi_ns_get_parent_node(node);
 
@@ -115,6 +109,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
         }
 
         if (prev_node) {
+
                 /* Node is not first child, unlink it */
 
                 prev_node->peer = next_node->peer;
@@ -125,6 +120,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
                 /* Node is first child (has no previous peer) */
 
                 if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
+
                         /* No peers at all */
 
                         parent_node->child = NULL;
@@ -137,10 +133,10 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
         ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
 
         /*
-         * Detach an object if there is one then delete the node
+         * Detach an object if there is one, then delete the node
          */
         acpi_ns_detach_object(node);
-        ACPI_MEM_FREE(node);
+        (void)acpi_os_release_object(acpi_gbl_namespace_cache, node);
         return_VOID;
 }
 
@@ -171,7 +167,7 @@ void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namesp
         acpi_owner_id owner_id = 0;
         struct acpi_namespace_node *child_node;
 
-        ACPI_FUNCTION_TRACE("ns_install_node");
+        ACPI_FUNCTION_TRACE(ns_install_node);
 
         /*
          * Get the owner ID from the Walk state
@@ -216,14 +212,6 @@ void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namesp
                           acpi_ut_get_type_name(parent_node->type),
                           parent_node));
 
-        /*
-         * Increment the reference count(s) of all parents up to
-         * the root!
-         */
-        while ((node = acpi_ns_get_parent_node(node)) != NULL) {
-                node->reference_count++;
-        }
-
         return_VOID;
 }
 
@@ -244,10 +232,9 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node)
 {
         struct acpi_namespace_node *child_node;
         struct acpi_namespace_node *next_node;
-        struct acpi_namespace_node *node;
         u8 flags;
 
-        ACPI_FUNCTION_TRACE_PTR("ns_delete_children", parent_node);
+        ACPI_FUNCTION_TRACE_PTR(ns_delete_children, parent_node);
 
         if (!parent_node) {
                 return_VOID;
@@ -264,6 +251,7 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node)
          * Deallocate all children at this level
          */
         do {
+
                 /* Get the things we need */
 
                 next_node = child_node->peer;
@@ -289,26 +277,10 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node)
                  */
                 acpi_ns_detach_object(child_node);
 
-                /*
-                 * Decrement the reference count(s) of all parents up to
-                 * the root! (counts were incremented when the node was created)
-                 */
-                node = child_node;
-                while ((node = acpi_ns_get_parent_node(node)) != NULL) {
-                        node->reference_count--;
-                }
-
-                /* There should be only one reference remaining on this node */
-
-                if (child_node->reference_count != 1) {
-                        ACPI_WARNING((AE_INFO,
-                                      "Existing references (%d) on node being deleted (%p)",
-                                      child_node->reference_count, child_node));
-                }
-
                 /* Now we can delete the node */
 
-                ACPI_MEM_FREE(child_node);
+                (void)acpi_os_release_object(acpi_gbl_namespace_cache,
+                                             child_node);
 
                 /* And move on to the next child in the list */
 
@@ -341,7 +313,7 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node)
         struct acpi_namespace_node *child_node = NULL;
         u32 level = 1;
 
-        ACPI_FUNCTION_TRACE("ns_delete_namespace_subtree");
+        ACPI_FUNCTION_TRACE(ns_delete_namespace_subtree);
 
         if (!parent_node) {
                 return_VOID;
@@ -352,11 +324,14 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node)
          * to where we started.
          */
         while (level > 0) {
+
                 /* Get the next node in this scope (NULL if none) */
 
-                child_node = acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
-                                                   child_node);
+                child_node =
+                    acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
+                                          child_node);
                 if (child_node) {
+
                         /* Found a child node - detach any attached object */
 
                         acpi_ns_detach_object(child_node);
@@ -401,55 +376,6 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ns_remove_reference
- *
- * PARAMETERS:  Node           - Named node whose reference count is to be
- *                               decremented
- *
- * RETURN:      None.
- *
- * DESCRIPTION: Remove a Node reference.  Decrements the reference count
- *              of all parent Nodes up to the root.  Any node along
- *              the way that reaches zero references is freed.
- *
- ******************************************************************************/
-
-static void acpi_ns_remove_reference(struct acpi_namespace_node *node)
-{
-        struct acpi_namespace_node *parent_node;
-        struct acpi_namespace_node *this_node;
-
-        ACPI_FUNCTION_ENTRY();
-
-        /*
-         * Decrement the reference count(s) of this node and all
-         * nodes up to the root,  Delete anything with zero remaining references.
-         */
-        this_node = node;
-        while (this_node) {
-                /* Prepare to move up to parent */
-
-                parent_node = acpi_ns_get_parent_node(this_node);
-
-                /* Decrement the reference count on this node */
-
-                this_node->reference_count--;
-
-                /* Delete the node if no more references */
-
-                if (!this_node->reference_count) {
-                        /* Delete all children and delete the node */
-
-                        acpi_ns_delete_children(this_node);
-                        acpi_ns_delete_node(this_node);
-                }
-
-                this_node = parent_node;
-        }
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_ns_delete_namespace_by_owner
  *
  * PARAMETERS:  owner_id    - All nodes with this owner will be deleted
@@ -469,15 +395,15 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id)
         u32 level;
         struct acpi_namespace_node *parent_node;
 
-        ACPI_FUNCTION_TRACE_U32("ns_delete_namespace_by_owner", owner_id);
+        ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id);
 
         if (owner_id == 0) {
                 return_VOID;
         }
 
+        deletion_node = NULL;
         parent_node = acpi_gbl_root_node;
         child_node = NULL;
-        deletion_node = NULL;
         level = 1;
 
         /*
@@ -494,12 +420,14 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id)
                                           child_node);
 
                 if (deletion_node) {
-                        acpi_ns_remove_reference(deletion_node);
+                        acpi_ns_delete_children(deletion_node);
+                        acpi_ns_delete_node(deletion_node);
                         deletion_node = NULL;
                 }
 
                 if (child_node) {
                         if (child_node->owner_id == owner_id) {
+
                                 /* Found a matching child node - detach any attached object */
 
                                 acpi_ns_detach_object(child_node);
diff --git a/drivers/acpi/namespace/nsdump.c b/drivers/acpi/namespace/nsdump.c
index a2807317a84b..d72df66aa965 100644
--- a/drivers/acpi/namespace/nsdump.c
+++ b/drivers/acpi/namespace/nsdump.c
@@ -75,7 +75,7 @@ void acpi_ns_print_pathname(u32 num_segments, char *pathname)
 {
         acpi_native_uint i;
 
-        ACPI_FUNCTION_NAME("ns_print_pathname");
+        ACPI_FUNCTION_NAME(ns_print_pathname);
 
         if (!(acpi_dbg_level & ACPI_LV_NAMES)
             || !(acpi_dbg_layer & ACPI_NAMESPACE)) {
@@ -123,7 +123,7 @@ void
 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
 {
 
-        ACPI_FUNCTION_TRACE("ns_dump_pathname");
+        ACPI_FUNCTION_TRACE(ns_dump_pathname);
 
         /* Do this only if the requested debug level and component are enabled */
 
@@ -167,7 +167,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
         u32 dbg_level;
         u32 i;
 
-        ACPI_FUNCTION_NAME("ns_dump_one_object");
+        ACPI_FUNCTION_NAME(ns_dump_one_object);
 
         /* Is output enabled? */
 
@@ -191,6 +191,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
         }
 
         if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
+
                 /* Indent the object according to the level */
 
                 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
@@ -203,6 +204,9 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
                 }
 
                 if (!acpi_ut_valid_acpi_name(this_node->name.integer)) {
+                        this_node->name.integer =
+                            acpi_ut_repair_name(this_node->name.integer);
+
                         ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X",
                                       this_node->name.integer));
                 }
@@ -226,6 +230,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
         case ACPI_DISPLAY_SUMMARY:
 
                 if (!obj_desc) {
+
                         /* No attached object, we are done */
 
                         acpi_os_printf("\n");
@@ -419,6 +424,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
 
                 acpi_os_printf("O:%p", obj_desc);
                 if (!obj_desc) {
+
                         /* No attached object, we are done */
 
                         acpi_os_printf("\n");
@@ -669,7 +675,7 @@ void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
 {
         acpi_handle search_handle = search_base;
 
-        ACPI_FUNCTION_TRACE("ns_dump_tables");
+        ACPI_FUNCTION_TRACE(ns_dump_tables);
 
         if (!acpi_gbl_root_node) {
                 /*
@@ -682,6 +688,7 @@ void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
         }
 
         if (ACPI_NS_ALL == search_base) {
+
                 /* Entire namespace */
 
                 search_handle = acpi_gbl_root_node;
diff --git a/drivers/acpi/namespace/nsdumpdv.c b/drivers/acpi/namespace/nsdumpdv.c
index aff899a935e3..c6bf5d30fca3 100644
--- a/drivers/acpi/namespace/nsdumpdv.c
+++ b/drivers/acpi/namespace/nsdumpdv.c
@@ -74,7 +74,7 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
         acpi_status status;
         u32 i;
 
-        ACPI_FUNCTION_NAME("ns_dump_one_device");
+        ACPI_FUNCTION_NAME(ns_dump_one_device);
 
         status =
             acpi_ns_dump_one_object(obj_handle, level, context, return_value);
@@ -92,7 +92,7 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
                                       info->hardware_id.value,
                                       ACPI_FORMAT_UINT64(info->address),
                                       info->current_status));
-                ACPI_MEM_FREE(info);
+                ACPI_FREE(info);
         }
 
         return (status);
@@ -115,7 +115,7 @@ void acpi_ns_dump_root_devices(void)
         acpi_handle sys_bus_handle;
         acpi_status status;
 
-        ACPI_FUNCTION_NAME("ns_dump_root_devices");
+        ACPI_FUNCTION_NAME(ns_dump_root_devices);
 
         /* Only dump the table if tracing is enabled */
 
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c
index 19d7b94d40c3..4b0a4a8c9843 100644
--- a/drivers/acpi/namespace/nseval.c
+++ b/drivers/acpi/namespace/nseval.c
@@ -1,7 +1,6 @@
 /*******************************************************************************
  *
- * Module Name: nseval - Object evaluation interfaces -- includes control
- *                       method lookup and execution.
+ * Module Name: nseval - Object evaluation, includes control method execution
  *
  ******************************************************************************/
 
@@ -50,196 +49,14 @@
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nseval")
 
-/* Local prototypes */
-static acpi_status
-acpi_ns_execute_control_method(struct acpi_parameter_info *info);
-
-static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info);
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_evaluate_relative
- *
- * PARAMETERS:  Pathname        - Name of method to execute, If NULL, the
- *                                handle is the object to execute
- *              Info            - Method info block, contains:
- *                  return_object   - Where to put method's return value (if
- *                                    any).  If NULL, no value is returned.
- *                  Params          - List of parameters to pass to the method,
- *                                    terminated by NULL.  Params itself may be
- *                                    NULL if no parameters are being passed.
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Evaluate the object or find and execute the requested method
- *
- * MUTEX:       Locks Namespace
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_evaluate_relative(char *pathname, struct acpi_parameter_info *info)
-{
-        acpi_status status;
-        struct acpi_namespace_node *node = NULL;
-        union acpi_generic_state *scope_info;
-        char *internal_path = NULL;
-
-        ACPI_FUNCTION_TRACE("ns_evaluate_relative");
-
-        /*
-         * Must have a valid object handle
-         */
-        if (!info || !info->node) {
-                return_ACPI_STATUS(AE_BAD_PARAMETER);
-        }
-
-        /* Build an internal name string for the method */
-
-        status = acpi_ns_internalize_name(pathname, &internal_path);
-        if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
-        }
-
-        scope_info = acpi_ut_create_generic_state();
-        if (!scope_info) {
-                goto cleanup1;
-        }
-
-        /* Get the prefix handle and Node */
-
-        status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
-        if (ACPI_FAILURE(status)) {
-                goto cleanup;
-        }
-
-        info->node = acpi_ns_map_handle_to_node(info->node);
-        if (!info->node) {
-                (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-                status = AE_BAD_PARAMETER;
-                goto cleanup;
-        }
-
-        /* Lookup the name in the namespace */
-
-        scope_info->scope.node = info->node;
-        status = acpi_ns_lookup(scope_info, internal_path, ACPI_TYPE_ANY,
-                                ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
-                                &node);
-
-        (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-
-        if (ACPI_FAILURE(status)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Object [%s] not found [%s]\n",
-                                  pathname, acpi_format_exception(status)));
-                goto cleanup;
-        }
-
-        /*
-         * Now that we have a handle to the object, we can attempt to evaluate it.
-         */
-        ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n",
-                          pathname, node, acpi_ns_get_attached_object(node)));
-
-        info->node = node;
-        status = acpi_ns_evaluate_by_handle(info);
-
-        ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
-                          "*** Completed eval of object %s ***\n", pathname));
-
-      cleanup:
-        acpi_ut_delete_generic_state(scope_info);
-
-      cleanup1:
-        ACPI_MEM_FREE(internal_path);
-        return_ACPI_STATUS(status);
-}
-
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ns_evaluate_by_name
+ * FUNCTION:    acpi_ns_evaluate
  *
- * PARAMETERS:  Pathname        - Fully qualified pathname to the object
- *              Info                - Method info block, contains:
- *                  return_object   - Where to put method's return value (if
- *                                    any).  If NULL, no value is returned.
- *                  Params          - List of parameters to pass to the method,
- *                                    terminated by NULL.  Params itself may be
- *                                    NULL if no parameters are being passed.
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Evaluate the object or rind and execute the requested method
- *              passing the given parameters
- *
- * MUTEX:       Locks Namespace
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_evaluate_by_name(char *pathname, struct acpi_parameter_info *info)
-{
-        acpi_status status;
-        char *internal_path = NULL;
-
-        ACPI_FUNCTION_TRACE("ns_evaluate_by_name");
-
-        /* Build an internal name string for the method */
-
-        status = acpi_ns_internalize_name(pathname, &internal_path);
-        if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
-        }
-
-        status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
-        if (ACPI_FAILURE(status)) {
-                goto cleanup;
-        }
-
-        /* Lookup the name in the namespace */
-
-        status = acpi_ns_lookup(NULL, internal_path, ACPI_TYPE_ANY,
-                                ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
-                                &info->node);
-
-        (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-
-        if (ACPI_FAILURE(status)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
-                                  "Object at [%s] was not found, status=%.4X\n",
-                                  pathname, status));
-                goto cleanup;
-        }
-
-        /*
-         * Now that we have a handle to the object, we can attempt to evaluate it.
-         */
-        ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n",
-                          pathname, info->node,
-                          acpi_ns_get_attached_object(info->node)));
-
-        status = acpi_ns_evaluate_by_handle(info);
-
-        ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
-                          "*** Completed eval of object %s ***\n", pathname));
-
-      cleanup:
-
-        /* Cleanup */
-
-        if (internal_path) {
-                ACPI_MEM_FREE(internal_path);
-        }
-
-        return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_evaluate_by_handle
- *
- * PARAMETERS:  Info            - Method info block, contains:
- *                  Node            - Method/Object Node to execute
+ * PARAMETERS:  Info            - Evaluation info block, contains:
+ *                  prefix_node     - Prefix or Method/Object Node to execute
+ *                  Pathname        - Name of method to execute, If NULL, the
+ *                                    Node is the object to execute
  *                  Parameters      - List of parameters to pass to the method,
  *                                    terminated by NULL. Params itself may be
  *                                    NULL if no parameters are being passed.
@@ -248,29 +65,21 @@ acpi_ns_evaluate_by_name(char *pathname, struct acpi_parameter_info *info)
  *                  parameter_type  - Type of Parameter list
  *                  return_object   - Where to put method's return value (if
  *                                    any). If NULL, no value is returned.
+ *                  Flags           - ACPI_IGNORE_RETURN_VALUE to delete return
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Evaluate object or execute the requested method passing the
- *              given parameters
+ * DESCRIPTION: Execute a control method or return the current value of an
+ *              ACPI namespace object.
  *
- * MUTEX:       Locks Namespace
+ * MUTEX:       Locks interpreter
  *
  ******************************************************************************/
-
-acpi_status acpi_ns_evaluate_by_handle(struct acpi_parameter_info *info)
+acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ns_evaluate_by_handle");
-
-        /* Check if namespace has been initialized */
-
-        if (!acpi_gbl_root_node) {
-                return_ACPI_STATUS(AE_NO_NAMESPACE);
-        }
-
-        /* Parameter Validation */
+        ACPI_FUNCTION_TRACE(ns_evaluate);
 
         if (!info) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -280,202 +89,120 @@ acpi_status acpi_ns_evaluate_by_handle(struct acpi_parameter_info *info)
 
         info->return_object = NULL;
 
-        /* Get the prefix handle and Node */
-
-        status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+        /*
+         * Get the actual namespace node for the target object. Handles these cases:
+         *
+         * 1) Null node, Pathname (absolute path)
+         * 2) Node, Pathname (path relative to Node)
+         * 3) Node, Null Pathname
+         */
+        status = acpi_ns_get_node(info->prefix_node, info->pathname,
+                                  ACPI_NS_NO_UPSEARCH, &info->resolved_node);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
         }
 
-        info->node = acpi_ns_map_handle_to_node(info->node);
-        if (!info->node) {
-                (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-                return_ACPI_STATUS(AE_BAD_PARAMETER);
-        }
-
         /*
          * For a method alias, we must grab the actual method node so that proper
          * scoping context will be established before execution.
          */
-        if (acpi_ns_get_type(info->node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) {
-                info->node =
+        if (acpi_ns_get_type(info->resolved_node) ==
+            ACPI_TYPE_LOCAL_METHOD_ALIAS) {
+                info->resolved_node =
                     ACPI_CAST_PTR(struct acpi_namespace_node,
-                                  info->node->object);
+                                  info->resolved_node->object);
         }
 
+        ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", info->pathname,
+                          info->resolved_node,
+                          acpi_ns_get_attached_object(info->resolved_node)));
+
         /*
          * Two major cases here:
-         * 1) The object is an actual control method -- execute it.
-         * 2) The object is not a method -- just return it's current value
          *
-         * In both cases, the namespace is unlocked by the acpi_ns* procedure
+         * 1) The object is a control method -- execute it
+         * 2) The object is not a method -- just return it's current value
          */
-        if (acpi_ns_get_type(info->node) == ACPI_TYPE_METHOD) {
-                /*
-                 * Case 1) We have an actual control method to execute
-                 */
-                status = acpi_ns_execute_control_method(info);
-        } else {
+        if (acpi_ns_get_type(info->resolved_node) == ACPI_TYPE_METHOD) {
                 /*
-                 * Case 2) Object is NOT a method, just return its current value
+                 * 1) Object is a control method - execute it
                  */
-                status = acpi_ns_get_object_value(info);
-        }
-
-        /*
-         * Check if there is a return value on the stack that must be dealt with
-         */
-        if (status == AE_CTRL_RETURN_VALUE) {
-                /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */
-
-                status = AE_OK;
-        }
-
-        /*
-         * Namespace was unlocked by the handling acpi_ns* function, so we
-         * just return
-         */
-        return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_execute_control_method
- *
- * PARAMETERS:  Info            - Method info block, contains:
- *                  Node            - Method Node to execute
- *                  obj_desc        - Method object
- *                  Parameters      - List of parameters to pass to the method,
- *                                    terminated by NULL. Params itself may be
- *                                    NULL if no parameters are being passed.
- *                  return_object   - Where to put method's return value (if
- *                                    any). If NULL, no value is returned.
- *                  parameter_type  - Type of Parameter list
- *                  return_object   - Where to put method's return value (if
- *                                    any). If NULL, no value is returned.
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Execute the requested method passing the given parameters
- *
- * MUTEX:       Assumes namespace is locked
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_execute_control_method(struct acpi_parameter_info *info)
-{
-        acpi_status status;
-
-        ACPI_FUNCTION_TRACE("ns_execute_control_method");
-
-        /* Verify that there is a method associated with this object */
-
-        info->obj_desc = acpi_ns_get_attached_object(info->node);
-        if (!info->obj_desc) {
-                ACPI_ERROR((AE_INFO, "No attached method object"));
 
-                (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-                return_ACPI_STATUS(AE_NULL_OBJECT);
-        }
-
-        ACPI_DUMP_PATHNAME(info->node, "Execute Method:",
-                           ACPI_LV_INFO, _COMPONENT);
-
-        ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Method at AML address %p Length %X\n",
-                          info->obj_desc->method.aml_start + 1,
-                          info->obj_desc->method.aml_length - 1));
-
-        /*
-         * Unlock the namespace before execution.  This allows namespace access
-         * via the external Acpi* interfaces while a method is being executed.
-         * However, any namespace deletion must acquire both the namespace and
-         * interpreter locks to ensure that no thread is using the portion of the
-         * namespace that is being deleted.
-         */
-        status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-        if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
-        }
+                /* Verify that there is a method object associated with this node */
 
-        /*
-         * Execute the method via the interpreter.  The interpreter is locked
-         * here before calling into the AML parser
-         */
-        status = acpi_ex_enter_interpreter();
-        if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
-        }
+                info->obj_desc =
+                    acpi_ns_get_attached_object(info->resolved_node);
+                if (!info->obj_desc) {
+                        ACPI_ERROR((AE_INFO,
+                                    "Control method has no attached sub-object"));
+                        return_ACPI_STATUS(AE_NULL_OBJECT);
+                }
 
-        status = acpi_ps_execute_method(info);
-        acpi_ex_exit_interpreter();
+                ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:",
+                                   ACPI_LV_INFO, _COMPONENT);
 
-        return_ACPI_STATUS(status);
-}
+                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                  "Method at AML address %p Length %X\n",
+                                  info->obj_desc->method.aml_start + 1,
+                                  info->obj_desc->method.aml_length - 1));
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_get_object_value
- *
- * PARAMETERS:  Info            - Method info block, contains:
- *                  Node            - Object's NS node
- *                  return_object   - Where to put object value (if
- *                                    any). If NULL, no value is returned.
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Return the current value of the object
- *
- * MUTEX:       Assumes namespace is locked, leaves namespace unlocked
- *
- ******************************************************************************/
+                /*
+                 * Any namespace deletion must acquire both the namespace and
+                 * interpreter locks to ensure that no thread is using the portion of
+                 * the namespace that is being deleted.
+                 *
+                 * Execute the method via the interpreter. The interpreter is locked
+                 * here before calling into the AML parser
+                 */
+                status = acpi_ex_enter_interpreter();
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
 
-static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info)
-{
-        acpi_status status = AE_OK;
-        struct acpi_namespace_node *resolved_node = info->node;
+                status = acpi_ps_execute_method(info);
+                acpi_ex_exit_interpreter();
+        } else {
+                /*
+                 * 2) Object is not a method, return its current value
+                 */
 
-        ACPI_FUNCTION_TRACE("ns_get_object_value");
+                /*
+                 * Objects require additional resolution steps (e.g., the Node may be
+                 * a field that must be read, etc.) -- we can't just grab the object
+                 * out of the node.
+                 *
+                 * Use resolve_node_to_value() to get the associated value.
+                 *
+                 * NOTE: we can get away with passing in NULL for a walk state because
+                 * resolved_node is guaranteed to not be a reference to either a method
+                 * local or a method argument (because this interface is never called
+                 * from a running method.)
+                 *
+                 * Even though we do not directly invoke the interpreter for object
+                 * resolution, we must lock it because we could access an opregion.
+                 * The opregion access code assumes that the interpreter is locked.
+                 */
+                status = acpi_ex_enter_interpreter();
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
 
-        /*
-         * Objects require additional resolution steps (e.g., the Node may be a
-         * field that must be read, etc.) -- we can't just grab the object out of
-         * the node.
-         */
+                /* Function has a strange interface */
 
-        /*
-         * Use resolve_node_to_value() to get the associated value. This call always
-         * deletes obj_desc (allocated above).
-         *
-         * NOTE: we can get away with passing in NULL for a walk state because
-         * obj_desc is guaranteed to not be a reference to either a method local or
-         * a method argument (because this interface can only be called from the
-         * acpi_evaluate external interface, never called from a running method.)
-         *
-         * Even though we do not directly invoke the interpreter for this, we must
-         * enter it because we could access an opregion. The opregion access code
-         * assumes that the interpreter is locked.
-         *
-         * We must release the namespace lock before entering the intepreter.
-         */
-        status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-        if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
-        }
+                status =
+                    acpi_ex_resolve_node_to_value(&info->resolved_node, NULL);
+                acpi_ex_exit_interpreter();
 
-        status = acpi_ex_enter_interpreter();
-        if (ACPI_SUCCESS(status)) {
-                status = acpi_ex_resolve_node_to_value(&resolved_node, NULL);
                 /*
                  * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed
                  * in resolved_node.
                  */
-                acpi_ex_exit_interpreter();
-
                 if (ACPI_SUCCESS(status)) {
                         status = AE_CTRL_RETURN_VALUE;
-                        info->return_object = ACPI_CAST_PTR
-                            (union acpi_operand_object, resolved_node);
+                        info->return_object =
+                            ACPI_CAST_PTR(union acpi_operand_object,
+                                          info->resolved_node);
+
                         ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
                                           "Returning object %p [%s]\n",
                                           info->return_object,
@@ -484,7 +211,30 @@ static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info)
                 }
         }
 
-        /* Namespace is unlocked */
+        /*
+         * Check if there is a return value that must be dealt with
+         */
+        if (status == AE_CTRL_RETURN_VALUE) {
+
+                /* If caller does not want the return value, delete it */
 
+                if (info->flags & ACPI_IGNORE_RETURN_VALUE) {
+                        acpi_ut_remove_reference(info->return_object);
+                        info->return_object = NULL;
+                }
+
+                /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */
+
+                status = AE_OK;
+        }
+
+        ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+                          "*** Completed evaluation of object %s ***\n",
+                          info->pathname));
+
+        /*
+         * Namespace was unlocked by the handling acpi_ns* function, so we
+         * just return
+         */
         return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c
index 9f929e479fd8..aec8488c0019 100644
--- a/drivers/acpi/namespace/nsinit.c
+++ b/drivers/acpi/namespace/nsinit.c
@@ -58,6 +58,10 @@ static acpi_status
 acpi_ns_init_one_device(acpi_handle obj_handle,
                         u32 nesting_level, void *context, void **return_value);
 
+static acpi_status
+acpi_ns_find_ini_methods(acpi_handle obj_handle,
+                         u32 nesting_level, void *context, void **return_value);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_initialize_objects
@@ -76,7 +80,7 @@ acpi_status acpi_ns_initialize_objects(void)
         acpi_status status;
         struct acpi_init_walk_info info;
 
-        ACPI_FUNCTION_TRACE("ns_initialize_objects");
+        ACPI_FUNCTION_TRACE(ns_initialize_objects);
 
         ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
                           "**** Starting initialization of namespace objects ****\n"));
@@ -93,7 +97,7 @@ acpi_status acpi_ns_initialize_objects(void)
                                      ACPI_UINT32_MAX, acpi_ns_init_one_object,
                                      &info, NULL);
         if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace"));
+                ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
         }
 
         ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
@@ -133,7 +137,7 @@ acpi_status acpi_ns_initialize_devices(void)
         acpi_status status;
         struct acpi_device_walk_info info;
 
-        ACPI_FUNCTION_TRACE("ns_initialize_devices");
+        ACPI_FUNCTION_TRACE(ns_initialize_devices);
 
         /* Init counters */
 
@@ -142,30 +146,46 @@ acpi_status acpi_ns_initialize_devices(void)
         info.num_INI = 0;
 
         ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-                              "Executing all Device _STA and_INI methods:"));
+                              "Initializing Device/Processor/Thermal objects by executing _INI methods:"));
+
+        /* Tree analysis: find all subtrees that contain _INI methods */
 
-        status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+        status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+                                        ACPI_UINT32_MAX, FALSE,
+                                        acpi_ns_find_ini_methods, &info, NULL);
         if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
+                goto error_exit;
         }
 
-        /* Walk namespace for all objects */
+        /* Allocate the evaluation information block */
+
+        info.evaluate_info =
+            ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+        if (!info.evaluate_info) {
+                status = AE_NO_MEMORY;
+                goto error_exit;
+        }
+
+        /* Walk namespace to execute all _INIs on present devices */
 
         status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
-                                        ACPI_UINT32_MAX, TRUE,
+                                        ACPI_UINT32_MAX, FALSE,
                                         acpi_ns_init_one_device, &info, NULL);
 
-        (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-
+        ACPI_FREE(info.evaluate_info);
         if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace"));
+                goto error_exit;
         }
 
         ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-                              "\n%hd Devices found - executed %hd _STA, %hd _INI methods\n",
-                              info.device_count, info.num_STA, info.num_INI));
+                              "\nExecuted %hd _INI methods requiring %hd _STA executions (examined %hd objects)\n",
+                              info.num_INI, info.num_STA, info.device_count));
 
         return_ACPI_STATUS(status);
+
+      error_exit:
+        ACPI_EXCEPTION((AE_INFO, status, "During device initialization"));
+        return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
@@ -200,7 +220,7 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
             (struct acpi_namespace_node *)obj_handle;
         union acpi_operand_object *obj_desc;
 
-        ACPI_FUNCTION_NAME("ns_init_one_object");
+        ACPI_FUNCTION_NAME(ns_init_one_object);
 
         info->object_count++;
 
@@ -311,6 +331,72 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ns_find_ini_methods
+ *
+ * PARAMETERS:  acpi_walk_callback
+ *
+ * RETURN:      acpi_status
+ *
+ * DESCRIPTION: Called during namespace walk. Finds objects named _INI under
+ *              device/processor/thermal objects, and marks the entire subtree
+ *              with a SUBTREE_HAS_INI flag. This flag is used during the
+ *              subsequent device initialization walk to avoid entire subtrees
+ *              that do not contain an _INI.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_find_ini_methods(acpi_handle obj_handle,
+                         u32 nesting_level, void *context, void **return_value)
+{
+        struct acpi_device_walk_info *info =
+            ACPI_CAST_PTR(struct acpi_device_walk_info, context);
+        struct acpi_namespace_node *node;
+        struct acpi_namespace_node *parent_node;
+
+        /* Keep count of device/processor/thermal objects */
+
+        node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
+        if ((node->type == ACPI_TYPE_DEVICE) ||
+            (node->type == ACPI_TYPE_PROCESSOR) ||
+            (node->type == ACPI_TYPE_THERMAL)) {
+                info->device_count++;
+                return (AE_OK);
+        }
+
+        /* We are only looking for methods named _INI */
+
+        if (!ACPI_COMPARE_NAME(node->name.ascii, METHOD_NAME__INI)) {
+                return (AE_OK);
+        }
+
+        /*
+         * The only _INI methods that we care about are those that are
+         * present under Device, Processor, and Thermal objects.
+         */
+        parent_node = acpi_ns_get_parent_node(node);
+        switch (parent_node->type) {
+        case ACPI_TYPE_DEVICE:
+        case ACPI_TYPE_PROCESSOR:
+        case ACPI_TYPE_THERMAL:
+
+                /* Mark parent and bubble up the INI present flag to the root */
+
+                while (parent_node) {
+                        parent_node->flags |= ANOBJ_SUBTREE_HAS_INI;
+                        parent_node = acpi_ns_get_parent_node(parent_node);
+                }
+                break;
+
+        default:
+                break;
+        }
+
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ns_init_one_device
  *
  * PARAMETERS:  acpi_walk_callback
@@ -327,119 +413,165 @@ static acpi_status
 acpi_ns_init_one_device(acpi_handle obj_handle,
                         u32 nesting_level, void *context, void **return_value)
 {
-        struct acpi_device_walk_info *info =
-            (struct acpi_device_walk_info *)context;
-        struct acpi_parameter_info pinfo;
+        struct acpi_device_walk_info *walk_info =
+            ACPI_CAST_PTR(struct acpi_device_walk_info, context);
+        struct acpi_evaluate_info *info = walk_info->evaluate_info;
         u32 flags;
         acpi_status status;
-        struct acpi_namespace_node *ini_node;
         struct acpi_namespace_node *device_node;
 
-        ACPI_FUNCTION_TRACE("ns_init_one_device");
+        ACPI_FUNCTION_TRACE(ns_init_one_device);
 
-        device_node = acpi_ns_map_handle_to_node(obj_handle);
-        if (!device_node) {
-                return_ACPI_STATUS(AE_BAD_PARAMETER);
-        }
+        /* We are interested in Devices, Processors and thermal_zones only */
 
-        /*
-         * We will run _STA/_INI on Devices, Processors and thermal_zones only
-         */
+        device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
         if ((device_node->type != ACPI_TYPE_DEVICE) &&
             (device_node->type != ACPI_TYPE_PROCESSOR) &&
             (device_node->type != ACPI_TYPE_THERMAL)) {
                 return_ACPI_STATUS(AE_OK);
         }
 
-        if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
-            (!(acpi_dbg_level & ACPI_LV_INFO))) {
-                ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
-        }
-
-        info->device_count++;
-
         /*
-         * Check if the _INI method exists for this device -
-         * if _INI does not exist, there is no need to run _STA
-         * No _INI means device requires no initialization
+         * Because of an earlier namespace analysis, all subtrees that contain an
+         * _INI method are tagged.
+         *
+         * If this device subtree does not contain any _INI methods, we
+         * can exit now and stop traversing this entire subtree.
          */
-        status = acpi_ns_search_node(*ACPI_CAST_PTR(u32, METHOD_NAME__INI),
-                                     device_node, ACPI_TYPE_METHOD, &ini_node);
-        if (ACPI_FAILURE(status)) {
-                /* No _INI method found - move on to next device */
-
-                return_ACPI_STATUS(AE_OK);
+        if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) {
+                return_ACPI_STATUS(AE_CTRL_DEPTH);
         }
 
         /*
-         * Run _STA to determine if we can run _INI on the device -
-         * the device must be present before _INI can be run.
-         * However, _STA is not required - assume device present if no _STA
+         * Run _STA to determine if this device is present and functioning. We
+         * must know this information for two important reasons (from ACPI spec):
+         *
+         * 1) We can only run _INI if the device is present.
+         * 2) We must abort the device tree walk on this subtree if the device is
+         *    not present and is not functional (we will not examine the children)
+         *
+         * The _STA method is not required to be present under the device, we
+         * assume the device is present if _STA does not exist.
          */
-        ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
-                                                      device_node,
-                                                      METHOD_NAME__STA));
-
-        pinfo.node = device_node;
-        pinfo.parameters = NULL;
-        pinfo.parameter_type = ACPI_PARAM_ARGS;
+        ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+                        (ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA));
 
-        status = acpi_ut_execute_STA(pinfo.node, &flags);
+        status = acpi_ut_execute_STA(device_node, &flags);
         if (ACPI_FAILURE(status)) {
+
                 /* Ignore error and move on to next device */
 
                 return_ACPI_STATUS(AE_OK);
         }
 
+        /*
+         * Flags == -1 means that _STA was not found. In this case, we assume that
+         * the device is both present and functional.
+         *
+         * From the ACPI spec, description of _STA:
+         *
+         * "If a device object (including the processor object) does not have an
+         * _STA object, then OSPM assumes that all of the above bits are set (in
+         * other words, the device is present, ..., and functioning)"
+         */
         if (flags != ACPI_UINT32_MAX) {
-                info->num_STA++;
+                walk_info->num_STA++;
         }
 
+        /*
+         * Examine the PRESENT and FUNCTIONING status bits
+         *
+         * Note: ACPI spec does not seem to specify behavior for the present but
+         * not functioning case, so we assume functioning if present.
+         */
         if (!(flags & ACPI_STA_DEVICE_PRESENT)) {
-                /* Don't look at children of a not present device */
 
-                return_ACPI_STATUS(AE_CTRL_DEPTH);
+                /* Device is not present, we must examine the Functioning bit */
+
+                if (flags & ACPI_STA_DEVICE_FUNCTIONING) {
+                        /*
+                         * Device is not present but is "functioning". In this case,
+                         * we will not run _INI, but we continue to examine the children
+                         * of this device.
+                         *
+                         * From the ACPI spec, description of _STA: (Note - no mention
+                         * of whether to run _INI or not on the device in question)
+                         *
+                         * "_STA may return bit 0 clear (not present) with bit 3 set
+                         * (device is functional). This case is used to indicate a valid
+                         * device for which no device driver should be loaded (for example,
+                         * a bridge device.) Children of this device may be present and
+                         * valid. OSPM should continue enumeration below a device whose
+                         * _STA returns this bit combination"
+                         */
+                        return_ACPI_STATUS(AE_OK);
+                } else {
+                        /*
+                         * Device is not present and is not functioning. We must abort the
+                         * walk of this subtree immediately -- don't look at the children
+                         * of such a device.
+                         *
+                         * From the ACPI spec, description of _INI:
+                         *
+                         * "If the _STA method indicates that the device is not present,
+                         * OSPM will not run the _INI and will not examine the children
+                         * of the device for _INI methods"
+                         */
+                        return_ACPI_STATUS(AE_CTRL_DEPTH);
+                }
         }
 
         /*
-         * The device is present and _INI exists. Run the _INI method.
-         * (We already have the _INI node from above)
+         * The device is present or is assumed present if no _STA exists.
+         * Run the _INI if it exists (not required to exist)
+         *
+         * Note: We know there is an _INI within this subtree, but it may not be
+         * under this particular device, it may be lower in the branch.
          */
-        ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
-                                                      pinfo.node,
-                                                      METHOD_NAME__INI));
+        ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+                        (ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI));
+
+        info->prefix_node = device_node;
+        info->pathname = METHOD_NAME__INI;
+        info->parameters = NULL;
+        info->parameter_type = ACPI_PARAM_ARGS;
+        info->flags = ACPI_IGNORE_RETURN_VALUE;
+
+        status = acpi_ns_evaluate(info);
+        if (ACPI_SUCCESS(status)) {
+                walk_info->num_INI++;
+
+                if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
+                    (!(acpi_dbg_level & ACPI_LV_INFO))) {
+                        ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
+                }
+        }
+#ifdef ACPI_DEBUG_OUTPUT
+        else if (status != AE_NOT_FOUND) {
 
-        pinfo.node = ini_node;
-        status = acpi_ns_evaluate_by_handle(&pinfo);
-        if (ACPI_FAILURE(status)) {
                 /* Ignore error and move on to next device */
 
-#ifdef ACPI_DEBUG_OUTPUT
-                char *scope_name = acpi_ns_get_external_pathname(ini_node);
-
-                ACPI_WARNING((AE_INFO, "%s._INI failed: %s",
-                              scope_name, acpi_format_exception(status)));
+                char *scope_name =
+                    acpi_ns_get_external_pathname(info->resolved_node);
 
-                ACPI_MEM_FREE(scope_name);
+                ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution",
+                                scope_name));
+                ACPI_FREE(scope_name);
+        }
 #endif
-        } else {
-                /* Delete any return object (especially if implicit_return is enabled) */
 
-                if (pinfo.return_object) {
-                        acpi_ut_remove_reference(pinfo.return_object);
-                }
+        /* Ignore errors from above */
 
-                /* Count of successful INIs */
-
-                info->num_INI++;
-        }
+        status = AE_OK;
 
+        /*
+         * The _INI method has been run if present; call the Global Initialization
+         * Handler for this device.
+         */
         if (acpi_gbl_init_handler) {
-                /* External initialization handler is present, call it */
-
                 status =
-                    acpi_gbl_init_handler(pinfo.node, ACPI_INIT_DEVICE_INI);
+                    acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI);
         }
 
-        return_ACPI_STATUS(AE_OK);
+        return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/namespace/nsload.c b/drivers/acpi/namespace/nsload.c
index 4e0b0524c188..fe75d888e183 100644
--- a/drivers/acpi/namespace/nsload.c
+++ b/drivers/acpi/namespace/nsload.c
@@ -77,13 +77,14 @@ acpi_ns_load_table(struct acpi_table_desc *table_desc,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ns_load_table");
+        ACPI_FUNCTION_TRACE(ns_load_table);
 
         /* Check if table contains valid AML (must be DSDT, PSDT, SSDT, etc.) */
 
         if (!
             (acpi_gbl_table_data[table_desc->type].
              flags & ACPI_TABLE_EXECUTABLE)) {
+
                 /* Just ignore this table */
 
                 return_ACPI_STATUS(AE_OK);
@@ -168,7 +169,7 @@ static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type)
         acpi_status status;
         struct acpi_table_desc *table_desc;
 
-        ACPI_FUNCTION_TRACE("ns_load_table_by_type");
+        ACPI_FUNCTION_TRACE(ns_load_table_by_type);
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
         if (ACPI_FAILURE(status)) {
@@ -180,11 +181,11 @@ static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type)
          * DSDT (one), SSDT/PSDT (multiple)
          */
         switch (table_type) {
-        case ACPI_TABLE_DSDT:
+        case ACPI_TABLE_ID_DSDT:
 
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace load: DSDT\n"));
 
-                table_desc = acpi_gbl_table_lists[ACPI_TABLE_DSDT].next;
+                table_desc = acpi_gbl_table_lists[ACPI_TABLE_ID_DSDT].next;
 
                 /* If table already loaded into namespace, just return */
 
@@ -200,8 +201,8 @@ static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type)
                 }
                 break;
 
-        case ACPI_TABLE_SSDT:
-        case ACPI_TABLE_PSDT:
+        case ACPI_TABLE_ID_SSDT:
+        case ACPI_TABLE_ID_PSDT:
 
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                   "Namespace load: %d SSDT or PSDTs\n",
@@ -258,7 +259,7 @@ acpi_status acpi_ns_load_namespace(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_load_name_space");
+        ACPI_FUNCTION_TRACE(acpi_load_name_space);
 
         /* There must be at least a DSDT installed */
 
@@ -271,15 +272,15 @@ acpi_status acpi_ns_load_namespace(void)
          * Load the namespace.  The DSDT is required,
          * but the SSDT and PSDT tables are optional.
          */
-        status = acpi_ns_load_table_by_type(ACPI_TABLE_DSDT);
+        status = acpi_ns_load_table_by_type(ACPI_TABLE_ID_DSDT);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
         }
 
         /* Ignore exceptions from these */
 
-        (void)acpi_ns_load_table_by_type(ACPI_TABLE_SSDT);
-        (void)acpi_ns_load_table_by_type(ACPI_TABLE_PSDT);
+        (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_SSDT);
+        (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_PSDT);
 
         ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
                               "ACPI Namespace successfully loaded at root %p\n",
@@ -314,7 +315,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle)
         acpi_handle dummy;
         u32 level;
 
-        ACPI_FUNCTION_TRACE("ns_delete_subtree");
+        ACPI_FUNCTION_TRACE(ns_delete_subtree);
 
         parent_handle = start_handle;
         child_handle = NULL;
@@ -325,6 +326,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle)
          * to where we started.
          */
         while (level > 0) {
+
                 /* Attempt to get the next object in this scope */
 
                 status = acpi_get_next_object(ACPI_TYPE_ANY, parent_handle,
@@ -335,6 +337,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle)
                 /* Did we get a new object? */
 
                 if (ACPI_SUCCESS(status)) {
+
                         /* Check if this object has any children */
 
                         if (ACPI_SUCCESS
@@ -392,7 +395,7 @@ acpi_status acpi_ns_unload_namespace(acpi_handle handle)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ns_unload_name_space");
+        ACPI_FUNCTION_TRACE(ns_unload_name_space);
 
         /* Parameter validation */
 
diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c
index 639f653b4b6b..97b8332c9746 100644
--- a/drivers/acpi/namespace/nsnames.c
+++ b/drivers/acpi/namespace/nsnames.c
@@ -48,11 +48,6 @@
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsnames")
 
-/* Local prototypes */
-static void
-acpi_ns_build_external_path(struct acpi_namespace_node *node,
-                            acpi_size size, char *name_buffer);
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_build_external_path
@@ -67,8 +62,7 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node,
  * DESCRIPTION: Generate a full pathaname
  *
  ******************************************************************************/
-
-static void
+void
 acpi_ns_build_external_path(struct acpi_namespace_node *node,
                             acpi_size size, char *name_buffer)
 {
@@ -138,7 +132,7 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
         char *name_buffer;
         acpi_size size;
 
-        ACPI_FUNCTION_TRACE_PTR("ns_get_external_pathname", node);
+        ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node);
 
         /* Calculate required buffer size based on depth below root */
 
@@ -146,7 +140,7 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
 
         /* Allocate a buffer to be returned to caller */
 
-        name_buffer = ACPI_MEM_CALLOCATE(size);
+        name_buffer = ACPI_ALLOCATE_ZEROED(size);
         if (!name_buffer) {
                 ACPI_ERROR((AE_INFO, "Allocation failure"));
                 return_PTR(NULL);
@@ -219,7 +213,7 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle,
         struct acpi_namespace_node *node;
         acpi_size required_size;
 
-        ACPI_FUNCTION_TRACE_PTR("ns_handle_to_pathname", target_handle);
+        ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle);
 
         node = acpi_ns_map_handle_to_node(target_handle);
         if (!node) {
diff --git a/drivers/acpi/namespace/nsobject.c b/drivers/acpi/namespace/nsobject.c
index 10ae6292bca4..aabe8794b908 100644
--- a/drivers/acpi/namespace/nsobject.c
+++ b/drivers/acpi/namespace/nsobject.c
@@ -76,19 +76,21 @@ acpi_ns_attach_object(struct acpi_namespace_node *node,
         union acpi_operand_object *last_obj_desc;
         acpi_object_type object_type = ACPI_TYPE_ANY;
 
-        ACPI_FUNCTION_TRACE("ns_attach_object");
+        ACPI_FUNCTION_TRACE(ns_attach_object);
 
         /*
          * Parameter validation
          */
         if (!node) {
+
                 /* Invalid handle */
 
-                ACPI_ERROR((AE_INFO, "Null named_obj handle"));
+                ACPI_ERROR((AE_INFO, "Null NamedObj handle"));
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
         if (!object && (ACPI_TYPE_ANY != type)) {
+
                 /* Null object */
 
                 ACPI_ERROR((AE_INFO,
@@ -97,6 +99,7 @@ acpi_ns_attach_object(struct acpi_namespace_node *node,
         }
 
         if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
+
                 /* Not a name handle */
 
                 ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]",
@@ -108,7 +111,7 @@ acpi_ns_attach_object(struct acpi_namespace_node *node,
 
         if (node->object == object) {
                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "Obj %p already installed in name_obj %p\n",
+                                  "Obj %p already installed in NameObj %p\n",
                                   object, node));
 
                 return_ACPI_STATUS(AE_OK);
@@ -201,7 +204,7 @@ void acpi_ns_detach_object(struct acpi_namespace_node *node)
 {
         union acpi_operand_object *obj_desc;
 
-        ACPI_FUNCTION_TRACE("ns_detach_object");
+        ACPI_FUNCTION_TRACE(ns_detach_object);
 
         obj_desc = node->object;
 
@@ -252,7 +255,7 @@ union acpi_operand_object *acpi_ns_get_attached_object(struct
                                                        acpi_namespace_node
                                                        *node)
 {
-        ACPI_FUNCTION_TRACE_PTR("ns_get_attached_object", node);
+        ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node);
 
         if (!node) {
                 ACPI_WARNING((AE_INFO, "Null Node ptr"));
@@ -287,7 +290,7 @@ union acpi_operand_object *acpi_ns_get_secondary_object(union
                                                         acpi_operand_object
                                                         *obj_desc)
 {
-        ACPI_FUNCTION_TRACE_PTR("ns_get_secondary_object", obj_desc);
+        ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc);
 
         if ((!obj_desc) ||
             (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) ||
diff --git a/drivers/acpi/namespace/nsparse.c b/drivers/acpi/namespace/nsparse.c
index 232be4303653..155505a4ef69 100644
--- a/drivers/acpi/namespace/nsparse.c
+++ b/drivers/acpi/namespace/nsparse.c
@@ -62,13 +62,13 @@ ACPI_MODULE_NAME("nsparse")
  *
  ******************************************************************************/
 acpi_status
-acpi_ns_one_complete_parse(u8 pass_number, struct acpi_table_desc * table_desc)
+acpi_ns_one_complete_parse(u8 pass_number, struct acpi_table_desc *table_desc)
 {
         union acpi_parse_object *parse_root;
         acpi_status status;
         struct acpi_walk_state *walk_state;
 
-        ACPI_FUNCTION_TRACE("ns_one_complete_parse");
+        ACPI_FUNCTION_TRACE(ns_one_complete_parse);
 
         /* Create and init a Root Node */
 
@@ -124,7 +124,7 @@ acpi_ns_parse_table(struct acpi_table_desc *table_desc,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ns_parse_table");
+        ACPI_FUNCTION_TRACE(ns_parse_table);
 
         /*
          * AML Parse, pass 1
diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c
index d64b78952f24..500e2bbcfaf7 100644
--- a/drivers/acpi/namespace/nssearch.c
+++ b/drivers/acpi/namespace/nssearch.c
@@ -56,16 +56,16 @@ acpi_ns_search_parent_tree(u32 target_name,
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ns_search_node
+ * FUNCTION:    acpi_ns_search_one_scope
  *
  * PARAMETERS:  target_name     - Ascii ACPI name to search for
- *              Node            - Starting node where search will begin
+ *              parent_node     - Starting node where search will begin
  *              Type            - Object type to match
  *              return_node     - Where the matched Named obj is returned
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Search a single level of the namespace.  Performs a
+ * DESCRIPTION: Search a single level of the namespace. Performs a
  *              simple search of the specified level, and does not add
  *              entries or search parents.
  *
@@ -75,35 +75,40 @@ acpi_ns_search_parent_tree(u32 target_name,
  *
  *      All namespace searching is linear in this implementation, but
  *      could be easily modified to support any improved search
- *      algorithm.  However, the linear search was chosen for simplicity
+ *      algorithm. However, the linear search was chosen for simplicity
  *      and because the trees are small and the other interpreter
  *      execution overhead is relatively high.
  *
+ *      Note: CPU execution analysis has shown that the AML interpreter spends
+ *      a very small percentage of its time searching the namespace. Therefore,
+ *      the linear search seems to be sufficient, as there would seem to be
+ *      little value in improving the search.
+ *
  ******************************************************************************/
 
 acpi_status
-acpi_ns_search_node(u32 target_name,
-                    struct acpi_namespace_node *node,
-                    acpi_object_type type,
-                    struct acpi_namespace_node **return_node)
+acpi_ns_search_one_scope(u32 target_name,
+                         struct acpi_namespace_node *parent_node,
+                         acpi_object_type type,
+                         struct acpi_namespace_node **return_node)
 {
-        struct acpi_namespace_node *next_node;
+        struct acpi_namespace_node *node;
 
-        ACPI_FUNCTION_TRACE("ns_search_node");
+        ACPI_FUNCTION_TRACE(ns_search_one_scope);
 
 #ifdef ACPI_DEBUG_OUTPUT
         if (ACPI_LV_NAMES & acpi_dbg_level) {
                 char *scope_name;
 
-                scope_name = acpi_ns_get_external_pathname(node);
+                scope_name = acpi_ns_get_external_pathname(parent_node);
                 if (scope_name) {
                         ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
                                           "Searching %s (%p) For [%4.4s] (%s)\n",
-                                          scope_name, node, ACPI_CAST_PTR(char,
-                                                                          &target_name),
+                                          scope_name, parent_node,
+                                          ACPI_CAST_PTR(char, &target_name),
                                           acpi_ut_get_type_name(type)));
 
-                        ACPI_MEM_FREE(scope_name);
+                        ACPI_FREE(scope_name);
                 }
         }
 #endif
@@ -112,32 +117,33 @@ acpi_ns_search_node(u32 target_name,
          * Search for name at this namespace level, which is to say that we
          * must search for the name among the children of this object
          */
-        next_node = node->child;
-        while (next_node) {
+        node = parent_node->child;
+        while (node) {
+
                 /* Check for match against the name */
 
-                if (next_node->name.integer == target_name) {
+                if (node->name.integer == target_name) {
+
                         /* Resolve a control method alias if any */
 
-                        if (acpi_ns_get_type(next_node) ==
+                        if (acpi_ns_get_type(node) ==
                             ACPI_TYPE_LOCAL_METHOD_ALIAS) {
-                                next_node =
+                                node =
                                     ACPI_CAST_PTR(struct acpi_namespace_node,
-                                                  next_node->object);
+                                                  node->object);
                         }
 
-                        /*
-                         * Found matching entry.
-                         */
+                        /* Found matching entry */
+
                         ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
                                           "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n",
                                           ACPI_CAST_PTR(char, &target_name),
-                                          acpi_ut_get_type_name(next_node->
-                                                                type),
-                                          next_node,
-                                          acpi_ut_get_node_name(node), node));
+                                          acpi_ut_get_type_name(node->type),
+                                          node,
+                                          acpi_ut_get_node_name(parent_node),
+                                          parent_node));
 
-                        *return_node = next_node;
+                        *return_node = node;
                         return_ACPI_STATUS(AE_OK);
                 }
 
@@ -145,7 +151,8 @@ acpi_ns_search_node(u32 target_name,
                  * The last entry in the list points back to the parent,
                  * so a flag is used to indicate the end-of-list
                  */
-                if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
+                if (node->flags & ANOBJ_END_OF_PEER_LIST) {
+
                         /* Searched entire list, we are done */
 
                         break;
@@ -153,7 +160,7 @@ acpi_ns_search_node(u32 target_name,
 
                 /* Didn't match name, move on to the next peer object */
 
-                next_node = next_node->peer;
+                node = node->peer;
         }
 
         /* Searched entire namespace level, not found */
@@ -162,7 +169,8 @@ acpi_ns_search_node(u32 target_name,
                           "Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n",
                           ACPI_CAST_PTR(char, &target_name),
                           acpi_ut_get_type_name(type),
-                          acpi_ut_get_node_name(node), node, node->child));
+                          acpi_ut_get_node_name(parent_node), parent_node,
+                          parent_node->child));
 
         return_ACPI_STATUS(AE_NOT_FOUND);
 }
@@ -179,14 +187,14 @@ acpi_ns_search_node(u32 target_name,
  * RETURN:      Status
  *
  * DESCRIPTION: Called when a name has not been found in the current namespace
- *              level.  Before adding it or giving up, ACPI scope rules require
+ *              level. Before adding it or giving up, ACPI scope rules require
  *              searching enclosing scopes in cases identified by acpi_ns_local().
  *
  *              "A name is located by finding the matching name in the current
  *              name space, and then in the parent name space. If the parent
  *              name space does not contain the name, the search continues
  *              recursively until either the name is found or the name space
- *              does not have a parent (the root of the name space).  This
+ *              does not have a parent (the root of the name space). This
  *              indicates that the name is not found" (From ACPI Specification,
  *              section 5.3)
  *
@@ -201,7 +209,7 @@ acpi_ns_search_parent_tree(u32 target_name,
         acpi_status status;
         struct acpi_namespace_node *parent_node;
 
-        ACPI_FUNCTION_TRACE("ns_search_parent_tree");
+        ACPI_FUNCTION_TRACE(ns_search_parent_tree);
 
         parent_node = acpi_ns_get_parent_node(node);
 
@@ -235,20 +243,19 @@ acpi_ns_search_parent_tree(u32 target_name,
          */
         while (parent_node) {
                 /*
-                 * Search parent scope.  Use TYPE_ANY because we don't care about the
+                 * Search parent scope. Use TYPE_ANY because we don't care about the
                  * object type at this point, we only care about the existence of
-                 * the actual name we are searching for.  Typechecking comes later.
+                 * the actual name we are searching for. Typechecking comes later.
                  */
-                status = acpi_ns_search_node(target_name, parent_node,
+                status =
+                    acpi_ns_search_one_scope(target_name, parent_node,
                                              ACPI_TYPE_ANY, return_node);
                 if (ACPI_SUCCESS(status)) {
                         return_ACPI_STATUS(status);
                 }
 
-                /*
-                 * Not found here, go up another level
-                 * (until we reach the root)
-                 */
+                /* Not found here, go up another level (until we reach the root) */
+
                 parent_node = acpi_ns_get_parent_node(parent_node);
         }
 
@@ -273,7 +280,7 @@ acpi_ns_search_parent_tree(u32 target_name,
  * RETURN:      Status
  *
  * DESCRIPTION: Search for a name segment in a single namespace level,
- *              optionally adding it if it is not found.  If the passed
+ *              optionally adding it if it is not found. If the passed
  *              Type is not Any and the type previously stored in the
  *              entry was Any (i.e. unknown), update the stored type.
  *
@@ -293,29 +300,46 @@ acpi_ns_search_and_enter(u32 target_name,
         acpi_status status;
         struct acpi_namespace_node *new_node;
 
-        ACPI_FUNCTION_TRACE("ns_search_and_enter");
+        ACPI_FUNCTION_TRACE(ns_search_and_enter);
 
         /* Parameter validation */
 
         if (!node || !target_name || !return_node) {
                 ACPI_ERROR((AE_INFO,
-                            "Null param: Node %p Name %X return_node %p",
+                            "Null parameter: Node %p Name %X ReturnNode %p",
                             node, target_name, return_node));
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        /* Name must consist of printable characters */
-
+        /*
+         * Name must consist of valid ACPI characters. We will repair the name if
+         * necessary because we don't want to abort because of this, but we want
+         * all namespace names to be printable. A warning message is appropriate.
+         *
+         * This issue came up because there are in fact machines that exhibit
+         * this problem, and we want to be able to enable ACPI support for them,
+         * even though there are a few bad names.
+         */
         if (!acpi_ut_valid_acpi_name(target_name)) {
-                ACPI_ERROR((AE_INFO, "Bad character in ACPI Name: %X",
-                            target_name));
-                return_ACPI_STATUS(AE_BAD_CHARACTER);
+                target_name = acpi_ut_repair_name(target_name);
+
+                /* Report warning only if in strict mode or debug mode */
+
+                if (!acpi_gbl_enable_interpreter_slack) {
+                        ACPI_WARNING((AE_INFO,
+                                      "Found bad character(s) in name, repaired: [%4.4s]\n",
+                                      ACPI_CAST_PTR(char, &target_name)));
+                } else {
+                        ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+                                          "Found bad character(s) in name, repaired: [%4.4s]\n",
+                                          ACPI_CAST_PTR(char, &target_name)));
+                }
         }
 
         /* Try to find the name in the namespace level specified by the caller */
 
         *return_node = ACPI_ENTRY_NOT_FOUND;
-        status = acpi_ns_search_node(target_name, node, type, return_node);
+        status = acpi_ns_search_one_scope(target_name, node, type, return_node);
         if (status != AE_NOT_FOUND) {
                 /*
                  * If we found it AND the request specifies that a find is an error,
@@ -325,18 +349,16 @@ acpi_ns_search_and_enter(u32 target_name,
                         status = AE_ALREADY_EXISTS;
                 }
 
-                /*
-                 * Either found it or there was an error
-                 * -- finished either way
-                 */
+                /* Either found it or there was an error: finished either way */
+
                 return_ACPI_STATUS(status);
         }
 
         /*
-         * The name was not found.  If we are NOT performing the first pass
+         * The name was not found. If we are NOT performing the first pass
          * (name entry) of loading the namespace, search the parent tree (all the
          * way to the root if necessary.) We don't want to perform the parent
-         * search when the namespace is actually being loaded.  We want to perform
+         * search when the namespace is actually being loaded. We want to perform
          * the search when namespace references are being resolved (load pass 2)
          * and during the execution phase.
          */
@@ -354,9 +376,8 @@ acpi_ns_search_and_enter(u32 target_name,
                 }
         }
 
-        /*
-         * In execute mode, just search, never add names.  Exit now.
-         */
+        /* In execute mode, just search, never add names. Exit now */
+
         if (interpreter_mode == ACPI_IMODE_EXECUTE) {
                 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
                                   "%4.4s Not found in %p [Not adding]\n",
@@ -371,11 +392,18 @@ acpi_ns_search_and_enter(u32 target_name,
         if (!new_node) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
+#ifdef ACPI_ASL_COMPILER
+        /*
+         * Node is an object defined by an External() statement
+         */
+        if (flags & ACPI_NS_EXTERNAL) {
+                new_node->flags |= ANOBJ_IS_EXTERNAL;
+        }
+#endif
 
         /* Install the new object into the parent's list of children */
 
         acpi_ns_install_node(walk_state, node, new_node, type);
         *return_node = new_node;
-
         return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/namespace/nsutils.c b/drivers/acpi/namespace/nsutils.c
index 3e7cad549a38..aa4e799d9a8c 100644
--- a/drivers/acpi/namespace/nsutils.c
+++ b/drivers/acpi/namespace/nsutils.c
@@ -78,15 +78,17 @@ acpi_ns_report_error(char *module_name,
                      char *internal_name, acpi_status lookup_status)
 {
         acpi_status status;
+        u32 bad_name;
         char *name = NULL;
 
-        acpi_ut_report_error(module_name, line_number);
+        acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
 
         if (lookup_status == AE_BAD_CHARACTER) {
+
                 /* There is a non-ascii character in the name */
 
-                acpi_os_printf("[0x%4.4X] (NON-ASCII)",
-                               *(ACPI_CAST_PTR(u32, internal_name)));
+                ACPI_MOVE_32_TO_32(&bad_name, internal_name);
+                acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name);
         } else {
                 /* Convert path to external format */
 
@@ -102,7 +104,7 @@ acpi_ns_report_error(char *module_name,
                 }
 
                 if (name) {
-                        ACPI_MEM_FREE(name);
+                        ACPI_FREE(name);
                 }
         }
 
@@ -137,11 +139,12 @@ acpi_ns_report_method_error(char *module_name,
         acpi_status status;
         struct acpi_namespace_node *node = prefix_node;
 
-        acpi_ut_report_error(module_name, line_number);
+        acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
 
         if (path) {
-                status = acpi_ns_get_node_by_path(path, prefix_node,
-                                                  ACPI_NS_NO_UPSEARCH, &node);
+                status =
+                    acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH,
+                                     &node);
                 if (ACPI_FAILURE(status)) {
                         acpi_os_printf("[Could not get node by pathname]");
                 }
@@ -185,7 +188,7 @@ acpi_ns_print_node_pathname(struct acpi_namespace_node *node, char *message)
                 }
 
                 acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node);
-                ACPI_MEM_FREE(buffer.pointer);
+                ACPI_FREE(buffer.pointer);
         }
 }
 
@@ -239,7 +242,7 @@ static u8 acpi_ns_valid_path_separator(char sep)
 
 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node)
 {
-        ACPI_FUNCTION_TRACE("ns_get_type");
+        ACPI_FUNCTION_TRACE(ns_get_type);
 
         if (!node) {
                 ACPI_WARNING((AE_INFO, "Null Node parameter"));
@@ -264,9 +267,10 @@ acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node)
 
 u32 acpi_ns_local(acpi_object_type type)
 {
-        ACPI_FUNCTION_TRACE("ns_local");
+        ACPI_FUNCTION_TRACE(ns_local);
 
         if (!acpi_ut_valid_object_type(type)) {
+
                 /* Type code out of range  */
 
                 ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
@@ -363,7 +367,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
         char *result = NULL;
         acpi_native_uint i;
 
-        ACPI_FUNCTION_TRACE("ns_build_internal_name");
+        ACPI_FUNCTION_TRACE(ns_build_internal_name);
 
         /* Setup the correct prefixes, counts, and pointers */
 
@@ -411,6 +415,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
                 for (i = 0; i < ACPI_NAME_SIZE; i++) {
                         if (acpi_ns_valid_path_separator(*external_name) ||
                             (*external_name == 0)) {
+
                                 /* Pad the segment with underscore(s) if segment is short */
 
                                 result[i] = '_';
@@ -473,7 +478,7 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name)
         struct acpi_namestring_info info;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ns_internalize_name");
+        ACPI_FUNCTION_TRACE(ns_internalize_name);
 
         if ((!external_name) || (*external_name == 0) || (!converted_name)) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -486,7 +491,7 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name)
 
         /* We need a segment to store the internal  name */
 
-        internal_name = ACPI_MEM_CALLOCATE(info.length);
+        internal_name = ACPI_ALLOCATE_ZEROED(info.length);
         if (!internal_name) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
@@ -496,7 +501,7 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name)
         info.internal_name = internal_name;
         status = acpi_ns_build_internal_name(&info);
         if (ACPI_FAILURE(status)) {
-                ACPI_MEM_FREE(internal_name);
+                ACPI_FREE(internal_name);
                 return_ACPI_STATUS(status);
         }
 
@@ -533,7 +538,7 @@ acpi_ns_externalize_name(u32 internal_name_length,
         acpi_native_uint i = 0;
         acpi_native_uint j = 0;
 
-        ACPI_FUNCTION_TRACE("ns_externalize_name");
+        ACPI_FUNCTION_TRACE(ns_externalize_name);
 
         if (!internal_name_length || !internal_name || !converted_name) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -628,7 +633,7 @@ acpi_ns_externalize_name(u32 internal_name_length,
         /*
          * Build converted_name
          */
-        *converted_name = ACPI_MEM_CALLOCATE(required_length);
+        *converted_name = ACPI_ALLOCATE_ZEROED(required_length);
         if (!(*converted_name)) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
@@ -681,13 +686,9 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
         ACPI_FUNCTION_ENTRY();
 
         /*
-         * Simple implementation.
+         * Simple implementation
          */
-        if (!handle) {
-                return (NULL);
-        }
-
-        if (handle == ACPI_ROOT_OBJECT) {
+        if ((!handle) || (handle == ACPI_ROOT_OBJECT)) {
                 return (acpi_gbl_root_node);
         }
 
@@ -697,7 +698,7 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
                 return (NULL);
         }
 
-        return ((struct acpi_namespace_node *)handle);
+        return (ACPI_CAST_PTR(struct acpi_namespace_node, handle));
 }
 
 /*******************************************************************************
@@ -752,7 +753,7 @@ void acpi_ns_terminate(void)
 {
         union acpi_operand_object *obj_desc;
 
-        ACPI_FUNCTION_TRACE("ns_terminate");
+        ACPI_FUNCTION_TRACE(ns_terminate);
 
         /*
          * 1) Free the entire namespace -- all nodes and objects
@@ -792,9 +793,10 @@ void acpi_ns_terminate(void)
 
 u32 acpi_ns_opens_scope(acpi_object_type type)
 {
-        ACPI_FUNCTION_TRACE_STR("ns_opens_scope", acpi_ut_get_type_name(type));
+        ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type));
 
         if (!acpi_ut_valid_object_type(type)) {
+
                 /* type code out of range  */
 
                 ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
@@ -806,12 +808,12 @@ u32 acpi_ns_opens_scope(acpi_object_type type)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ns_get_node_by_path
+ * FUNCTION:    acpi_ns_get_node
  *
  * PARAMETERS:  *Pathname   - Name to be found, in external (ASL) format. The
  *                            \ (backslash) and ^ (carat) prefixes, and the
  *                            . (period) to separate segments are supported.
- *              start_node  - Root of subtree to be searched, or NS_ALL for the
+ *              prefix_node  - Root of subtree to be searched, or NS_ALL for the
  *                            root of the name space.  If Name is fully
  *                            qualified (first s8 is '\'), the passed value
  *                            of Scope will not be accessed.
@@ -827,23 +829,29 @@ u32 acpi_ns_opens_scope(acpi_object_type type)
  ******************************************************************************/
 
 acpi_status
-acpi_ns_get_node_by_path(char *pathname,
-                         struct acpi_namespace_node *start_node,
-                         u32 flags, struct acpi_namespace_node **return_node)
+acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
+                 char *pathname,
+                 u32 flags, struct acpi_namespace_node **return_node)
 {
         union acpi_generic_state scope_info;
         acpi_status status;
-        char *internal_path = NULL;
-
-        ACPI_FUNCTION_TRACE_PTR("ns_get_node_by_path", pathname);
+        char *internal_path;
 
-        if (pathname) {
-                /* Convert path to internal representation */
+        ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname);
 
-                status = acpi_ns_internalize_name(pathname, &internal_path);
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
+        if (!pathname) {
+                *return_node = prefix_node;
+                if (!prefix_node) {
+                        *return_node = acpi_gbl_root_node;
                 }
+                return_ACPI_STATUS(AE_OK);
+        }
+
+        /* Convert path to internal representation */
+
+        status = acpi_ns_internalize_name(pathname, &internal_path);
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
         }
 
         /* Must lock namespace during lookup */
@@ -855,26 +863,23 @@ acpi_ns_get_node_by_path(char *pathname,
 
         /* Setup lookup scope (search starting point) */
 
-        scope_info.scope.node = start_node;
+        scope_info.scope.node = prefix_node;
 
         /* Lookup the name in the namespace */
 
-        status = acpi_ns_lookup(&scope_info, internal_path,
-                                ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
-                                (flags | ACPI_NS_DONT_OPEN_SCOPE),
-                                NULL, return_node);
+        status = acpi_ns_lookup(&scope_info, internal_path, ACPI_TYPE_ANY,
+                                ACPI_IMODE_EXECUTE,
+                                (flags | ACPI_NS_DONT_OPEN_SCOPE), NULL,
+                                return_node);
         if (ACPI_FAILURE(status)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s, %s\n",
-                                  internal_path,
-                                  acpi_format_exception(status)));
+                                  pathname, acpi_format_exception(status)));
         }
 
         (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 
       cleanup:
-        if (internal_path) {
-                ACPI_MEM_FREE(internal_path);
-        }
+        ACPI_FREE(internal_path);
         return_ACPI_STATUS(status);
 }
 
@@ -960,9 +965,10 @@ acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node * child_node)
 {
         struct acpi_namespace_node *parent_node;
 
-        ACPI_FUNCTION_TRACE("ns_find_parent_name");
+        ACPI_FUNCTION_TRACE(ns_find_parent_name);
 
         if (child_node) {
+
                 /* Valid entry.  Get the parent Node */
 
                 parent_node = acpi_ns_get_parent_node(child_node);
diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c
index fcab1e784b81..c8f6bef16ed0 100644
--- a/drivers/acpi/namespace/nswalk.c
+++ b/drivers/acpi/namespace/nswalk.c
@@ -76,6 +76,7 @@ struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type,
         ACPI_FUNCTION_ENTRY();
 
         if (!child_node) {
+
                 /* It's really the parent's _scope_ that we want */
 
                 if (parent_node->child) {
@@ -92,6 +93,7 @@ struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type,
         /* If any type is OK, we are done */
 
         if (type == ACPI_TYPE_ANY) {
+
                 /* next_node is NULL if we are at the end-of-list */
 
                 return (next_node);
@@ -100,6 +102,7 @@ struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type,
         /* Must search for the node -- but within this scope only */
 
         while (next_node) {
+
                 /* If type matches, we are done */
 
                 if (next_node->type == type) {
@@ -161,7 +164,7 @@ acpi_ns_walk_namespace(acpi_object_type type,
         acpi_object_type child_type;
         u32 level;
 
-        ACPI_FUNCTION_TRACE("ns_walk_namespace");
+        ACPI_FUNCTION_TRACE(ns_walk_namespace);
 
         /* Special case for the namespace Root Node */
 
@@ -182,6 +185,7 @@ acpi_ns_walk_namespace(acpi_object_type type,
          * bubbled up to (and passed) the original parent handle (start_entry)
          */
         while (level > 0) {
+
                 /* Get the next node in this scope.  Null if not found */
 
                 status = AE_OK;
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
index a95f636dc35d..6d9bd45af30a 100644
--- a/drivers/acpi/namespace/nsxfeval.c
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -42,8 +42,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 #include <acpi/acinterp.h>
@@ -51,6 +49,7 @@
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsxfeval")
 
+#ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
  * FUNCTION:    acpi_evaluate_object_typed
@@ -71,18 +70,17 @@ ACPI_MODULE_NAME("nsxfeval")
  *              be valid (non-null)
  *
  ******************************************************************************/
-#ifdef ACPI_FUTURE_USAGE
 acpi_status
 acpi_evaluate_object_typed(acpi_handle handle,
                            acpi_string pathname,
-                           struct acpi_object_list *external_params,
-                           struct acpi_buffer *return_buffer,
+                           struct acpi_object_list * external_params,
+                           struct acpi_buffer * return_buffer,
                            acpi_object_type return_type)
 {
         acpi_status status;
         u8 must_free = FALSE;
 
-        ACPI_FUNCTION_TRACE("acpi_evaluate_object_typed");
+        ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed);
 
         /* Return buffer must be valid */
 
@@ -110,6 +108,7 @@ acpi_evaluate_object_typed(acpi_handle handle,
         }
 
         if (return_buffer->length == 0) {
+
                 /* Error because caller specifically asked for a return value */
 
                 ACPI_ERROR((AE_INFO, "No return value"));
@@ -131,6 +130,7 @@ acpi_evaluate_object_typed(acpi_handle handle,
                     acpi_ut_get_type_name(return_type)));
 
         if (must_free) {
+
                 /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */
 
                 acpi_os_free(return_buffer->pointer);
@@ -140,6 +140,8 @@ acpi_evaluate_object_typed(acpi_handle handle,
         return_buffer->length = 0;
         return_ACPI_STATUS(AE_TYPE);
 }
+
+ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed)
 #endif                          /*  ACPI_FUTURE_USAGE  */
 
 /*******************************************************************************
@@ -161,7 +163,6 @@ acpi_evaluate_object_typed(acpi_handle handle,
  *              be valid (non-null)
  *
  ******************************************************************************/
-
 acpi_status
 acpi_evaluate_object(acpi_handle handle,
                      acpi_string pathname,
@@ -170,51 +171,61 @@ acpi_evaluate_object(acpi_handle handle,
 {
         acpi_status status;
         acpi_status status2;
-        struct acpi_parameter_info info;
+        struct acpi_evaluate_info *info;
         acpi_size buffer_space_needed;
         u32 i;
 
-        ACPI_FUNCTION_TRACE("acpi_evaluate_object");
+        ACPI_FUNCTION_TRACE(acpi_evaluate_object);
 
-        info.node = handle;
-        info.parameters = NULL;
-        info.return_object = NULL;
-        info.parameter_type = ACPI_PARAM_ARGS;
+        /* Allocate and initialize the evaluation information block */
+
+        info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+        if (!info) {
+                return_ACPI_STATUS(AE_NO_MEMORY);
+        }
+
+        info->pathname = pathname;
+        info->parameter_type = ACPI_PARAM_ARGS;
+
+        /* Convert and validate the device handle */
+
+        info->prefix_node = acpi_ns_map_handle_to_node(handle);
+        if (!info->prefix_node) {
+                status = AE_BAD_PARAMETER;
+                goto cleanup;
+        }
 
         /*
-         * If there are parameters to be passed to the object
-         * (which must be a control method), the external objects
-         * must be converted to internal objects
+         * If there are parameters to be passed to a control method, the external
+         * objects must all be converted to internal objects
          */
         if (external_params && external_params->count) {
                 /*
                  * Allocate a new parameter block for the internal objects
                  * Add 1 to count to allow for null terminated internal list
                  */
-                info.parameters = ACPI_MEM_CALLOCATE(((acpi_size)
-                                                      external_params->count +
-                                                      1) * sizeof(void *));
-                if (!info.parameters) {
-                        return_ACPI_STATUS(AE_NO_MEMORY);
+                info->parameters = ACPI_ALLOCATE_ZEROED(((acpi_size)
+                                                         external_params->
+                                                         count +
+                                                         1) * sizeof(void *));
+                if (!info->parameters) {
+                        status = AE_NO_MEMORY;
+                        goto cleanup;
                 }
 
-                /*
-                 * Convert each external object in the list to an
-                 * internal object
-                 */
+                /* Convert each external object in the list to an internal object */
+
                 for (i = 0; i < external_params->count; i++) {
                         status =
                             acpi_ut_copy_eobject_to_iobject(&external_params->
                                                             pointer[i],
-                                                            &info.
+                                                            &info->
                                                             parameters[i]);
                         if (ACPI_FAILURE(status)) {
-                                acpi_ut_delete_internal_object_list(info.
-                                                                    parameters);
-                                return_ACPI_STATUS(status);
+                                goto cleanup;
                         }
                 }
-                info.parameters[external_params->count] = NULL;
+                info->parameters[external_params->count] = NULL;
         }
 
         /*
@@ -224,43 +235,31 @@ acpi_evaluate_object(acpi_handle handle,
          * 3) Valid handle
          */
         if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) {
-                /*
-                 *  The path is fully qualified, just evaluate by name
-                 */
-                status = acpi_ns_evaluate_by_name(pathname, &info);
+
+                /* The path is fully qualified, just evaluate by name */
+
+                info->prefix_node = NULL;
+                status = acpi_ns_evaluate(info);
         } else if (!handle) {
                 /*
-                 * A handle is optional iff a fully qualified pathname
-                 * is specified.  Since we've already handled fully
-                 * qualified names above, this is an error
+                 * A handle is optional iff a fully qualified pathname is specified.
+                 * Since we've already handled fully qualified names above, this is
+                 * an error
                  */
                 if (!pathname) {
-                        ACPI_ERROR((AE_INFO,
-                                    "Both Handle and Pathname are NULL"));
+                        ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+                                          "Both Handle and Pathname are NULL"));
                 } else {
-                        ACPI_ERROR((AE_INFO,
-                                    "Handle is NULL and Pathname is relative"));
+                        ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+                                          "Null Handle with relative pathname [%s]",
+                                          pathname));
                 }
 
                 status = AE_BAD_PARAMETER;
         } else {
-                /*
-                 * We get here if we have a handle -- and if we have a
-                 * pathname it is relative.  The handle will be validated
-                 * in the lower procedures
-                 */
-                if (!pathname) {
-                        /*
-                         * The null pathname case means the handle is for
-                         * the actual object to be evaluated
-                         */
-                        status = acpi_ns_evaluate_by_handle(&info);
-                } else {
-                        /*
-                         * Both a Handle and a relative Pathname
-                         */
-                        status = acpi_ns_evaluate_relative(pathname, &info);
-                }
+                /* We have a namespace a node and a possible relative path */
+
+                status = acpi_ns_evaluate(info);
         }
 
         /*
@@ -268,10 +267,10 @@ acpi_evaluate_object(acpi_handle handle,
          * copy the return value to an external object.
          */
         if (return_buffer) {
-                if (!info.return_object) {
+                if (!info->return_object) {
                         return_buffer->length = 0;
                 } else {
-                        if (ACPI_GET_DESCRIPTOR_TYPE(info.return_object) ==
+                        if (ACPI_GET_DESCRIPTOR_TYPE(info->return_object) ==
                             ACPI_DESC_TYPE_NAMED) {
                                 /*
                                  * If we received a NS Node as a return object, this means that
@@ -282,19 +281,19 @@ acpi_evaluate_object(acpi_handle handle,
                                  * support for various types at a later date if necessary.
                                  */
                                 status = AE_TYPE;
-                                info.return_object = NULL;      /* No need to delete a NS Node */
+                                info->return_object = NULL;     /* No need to delete a NS Node */
                                 return_buffer->length = 0;
                         }
 
                         if (ACPI_SUCCESS(status)) {
-                                /*
-                                 * Find out how large a buffer is needed
-                                 * to contain the returned object
-                                 */
+
+                                /* Get the size of the returned object */
+
                                 status =
-                                    acpi_ut_get_object_size(info.return_object,
+                                    acpi_ut_get_object_size(info->return_object,
                                                             &buffer_space_needed);
                                 if (ACPI_SUCCESS(status)) {
+
                                         /* Validate/Allocate/Clear caller buffer */
 
                                         status =
@@ -303,7 +302,8 @@ acpi_evaluate_object(acpi_handle handle,
                                              buffer_space_needed);
                                         if (ACPI_FAILURE(status)) {
                                                 /*
-                                                 * Caller's buffer is too small or a new one can't be allocated
+                                                 * Caller's buffer is too small or a new one can't
+                                                 * be allocated
                                                  */
                                                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                                                   "Needed buffer size %X, %s\n",
@@ -312,12 +312,11 @@ acpi_evaluate_object(acpi_handle handle,
                                                                   acpi_format_exception
                                                                   (status)));
                                         } else {
-                                                /*
-                                                 *  We have enough space for the object, build it
-                                                 */
+                                                /* We have enough space for the object, build it */
+
                                                 status =
                                                     acpi_ut_copy_iobject_to_eobject
-                                                    (info.return_object,
+                                                    (info->return_object,
                                                      return_buffer);
                                         }
                                 }
@@ -325,35 +324,37 @@ acpi_evaluate_object(acpi_handle handle,
                 }
         }
 
-        if (info.return_object) {
+        if (info->return_object) {
                 /*
-                 * Delete the internal return object.  NOTE: Interpreter
-                 * must be locked to avoid race condition.
+                 * Delete the internal return object. NOTE: Interpreter must be
+                 * locked to avoid race condition.
                  */
                 status2 = acpi_ex_enter_interpreter();
                 if (ACPI_SUCCESS(status2)) {
-                        /*
-                         * Delete the internal return object. (Or at least
-                         * decrement the reference count by one)
-                         */
-                        acpi_ut_remove_reference(info.return_object);
+
+                        /* Remove one reference on the return object (should delete it) */
+
+                        acpi_ut_remove_reference(info->return_object);
                         acpi_ex_exit_interpreter();
                 }
         }
 
-        /*
-         * Free the input parameter list (if we created one),
-         */
-        if (info.parameters) {
+      cleanup:
+
+        /* Free the input parameter list (if we created one) */
+
+        if (info->parameters) {
+
                 /* Free the allocated parameter block */
 
-                acpi_ut_delete_internal_object_list(info.parameters);
+                acpi_ut_delete_internal_object_list(info->parameters);
         }
 
+        ACPI_FREE(info);
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_evaluate_object);
+ACPI_EXPORT_SYMBOL(acpi_evaluate_object)
 
 /*******************************************************************************
  *
@@ -384,7 +385,6 @@ EXPORT_SYMBOL(acpi_evaluate_object);
  *              function, etc.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_walk_namespace(acpi_object_type type,
                     acpi_handle start_object,
@@ -394,7 +394,7 @@ acpi_walk_namespace(acpi_object_type type,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_walk_namespace");
+        ACPI_FUNCTION_TRACE(acpi_walk_namespace);
 
         /* Parameter validation */
 
@@ -421,7 +421,7 @@ acpi_walk_namespace(acpi_object_type type,
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_walk_namespace);
+ACPI_EXPORT_SYMBOL(acpi_walk_namespace)
 
 /*******************************************************************************
  *
@@ -436,7 +436,6 @@ EXPORT_SYMBOL(acpi_walk_namespace);
  *              on that.
  *
  ******************************************************************************/
-
 static acpi_status
 acpi_ns_get_device_callback(acpi_handle obj_handle,
                             u32 nesting_level,
@@ -473,6 +472,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
         }
 
         if (!(flags & ACPI_STA_DEVICE_PRESENT)) {
+
                 /* Don't examine children of the device if not present */
 
                 return (AE_CTRL_DEPTH);
@@ -489,6 +489,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
                 }
 
                 if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) {
+
                         /* Get the list of Compatible IDs */
 
                         status = acpi_ut_execute_CID(node, &cid);
@@ -505,11 +506,11 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
                                                  sizeof(struct
                                                         acpi_compatible_id)) !=
                                     0) {
-                                        ACPI_MEM_FREE(cid);
+                                        ACPI_FREE(cid);
                                         return (AE_OK);
                                 }
                         }
-                        ACPI_MEM_FREE(cid);
+                        ACPI_FREE(cid);
                 }
         }
 
@@ -551,7 +552,7 @@ acpi_get_devices(char *HID,
         acpi_status status;
         struct acpi_get_devices_info info;
 
-        ACPI_FUNCTION_TRACE("acpi_get_devices");
+        ACPI_FUNCTION_TRACE(acpi_get_devices);
 
         /* Parameter validation */
 
@@ -563,9 +564,9 @@ acpi_get_devices(char *HID,
          * We're going to call their callback from OUR callback, so we need
          * to know what it is, and their context parameter.
          */
+        info.hid = HID;
         info.context = context;
         info.user_function = user_function;
-        info.hid = HID;
 
         /*
          * Lock the namespace around the walk.
@@ -578,9 +579,8 @@ acpi_get_devices(char *HID,
                 return_ACPI_STATUS(status);
         }
 
-        status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE,
-                                        ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
-                                        ACPI_NS_WALK_UNLOCK,
+        status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+                                        ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
                                         acpi_ns_get_device_callback, &info,
                                         return_value);
 
@@ -588,7 +588,7 @@ acpi_get_devices(char *HID,
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_get_devices);
+ACPI_EXPORT_SYMBOL(acpi_get_devices)
 
 /*******************************************************************************
  *
@@ -603,7 +603,6 @@ EXPORT_SYMBOL(acpi_get_devices);
  * DESCRIPTION: Attach arbitrary data and handler to a namespace node.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_attach_data(acpi_handle obj_handle,
                  acpi_object_handler handler, void *data)
@@ -637,6 +636,8 @@ acpi_attach_data(acpi_handle obj_handle,
         return (status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_attach_data)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_detach_data
@@ -649,7 +650,6 @@ acpi_attach_data(acpi_handle obj_handle,
  * DESCRIPTION: Remove data that was previously attached to a node.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
 {
@@ -682,6 +682,8 @@ acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
         return (status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_detach_data)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_data
@@ -695,7 +697,6 @@ acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
  * DESCRIPTION: Retrieve data that was previously attached to a namespace node.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
 {
@@ -727,3 +728,5 @@ acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
         (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
         return (status);
 }
+
+ACPI_EXPORT_SYMBOL(acpi_get_data)
diff --git a/drivers/acpi/namespace/nsxfname.c b/drivers/acpi/namespace/nsxfname.c
index 8cd8675a47c0..978213a6c19f 100644
--- a/drivers/acpi/namespace/nsxfname.c
+++ b/drivers/acpi/namespace/nsxfname.c
@@ -42,8 +42,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 
@@ -114,9 +112,8 @@ acpi_get_handle(acpi_handle parent,
         /*
          *  Find the Node and convert to a handle
          */
-        status =
-            acpi_ns_get_node_by_path(pathname, prefix_node, ACPI_NS_NO_UPSEARCH,
-                                     &node);
+        status = acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH,
+                                  &node);
 
         *ret_handle = NULL;
         if (ACPI_SUCCESS(status)) {
@@ -126,7 +123,7 @@ acpi_get_handle(acpi_handle parent,
         return (status);
 }
 
-EXPORT_SYMBOL(acpi_get_handle);
+ACPI_EXPORT_SYMBOL(acpi_get_handle)
 
 /******************************************************************************
  *
@@ -143,7 +140,6 @@ EXPORT_SYMBOL(acpi_get_handle);
  *              complementary functions.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
 {
@@ -162,6 +158,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
         }
 
         if (name_type == ACPI_FULL_PATHNAME) {
+
                 /* Get the full pathname (From the namespace root) */
 
                 status = acpi_ns_handle_to_pathname(handle, buffer);
@@ -203,7 +200,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
         return (status);
 }
 
-EXPORT_SYMBOL(acpi_get_name);
+ACPI_EXPORT_SYMBOL(acpi_get_name)
 
 /******************************************************************************
  *
@@ -219,7 +216,6 @@ EXPORT_SYMBOL(acpi_get_name);
  *              control methods (Such as in the case of a device.)
  *
  ******************************************************************************/
-
 acpi_status
 acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
 {
@@ -241,7 +237,7 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
                 return (status);
         }
 
-        info = ACPI_MEM_CALLOCATE(sizeof(struct acpi_device_info));
+        info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
         if (!info) {
                 return (AE_NO_MEMORY);
         }
@@ -345,11 +341,11 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
         }
 
       cleanup:
-        ACPI_MEM_FREE(info);
+        ACPI_FREE(info);
         if (cid_list) {
-                ACPI_MEM_FREE(cid_list);
+                ACPI_FREE(cid_list);
         }
         return (status);
 }
 
-EXPORT_SYMBOL(acpi_get_object_info);
+ACPI_EXPORT_SYMBOL(acpi_get_object_info)
diff --git a/drivers/acpi/namespace/nsxfobj.c b/drivers/acpi/namespace/nsxfobj.c
index a0332595677a..a163e1d3708d 100644
--- a/drivers/acpi/namespace/nsxfobj.c
+++ b/drivers/acpi/namespace/nsxfobj.c
@@ -42,8 +42,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 
@@ -101,7 +99,7 @@ acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type)
         return (status);
 }
 
-EXPORT_SYMBOL(acpi_get_type);
+ACPI_EXPORT_SYMBOL(acpi_get_type)
 
 /*******************************************************************************
  *
@@ -116,7 +114,6 @@ EXPORT_SYMBOL(acpi_get_type);
  *              Handle.
  *
  ******************************************************************************/
-
 acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
 {
         struct acpi_namespace_node *node;
@@ -162,7 +159,7 @@ acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
         return (status);
 }
 
-EXPORT_SYMBOL(acpi_get_parent);
+ACPI_EXPORT_SYMBOL(acpi_get_parent)
 
 /*******************************************************************************
  *
@@ -181,7 +178,6 @@ EXPORT_SYMBOL(acpi_get_parent);
  *              Scope is returned.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_get_next_object(acpi_object_type type,
                      acpi_handle parent,
@@ -206,6 +202,7 @@ acpi_get_next_object(acpi_object_type type,
         /* If null handle, use the parent */
 
         if (!child) {
+
                 /* Start search at the beginning of the specified scope */
 
                 parent_node = acpi_ns_map_handle_to_node(parent);
@@ -242,4 +239,4 @@ acpi_get_next_object(acpi_object_type type,
         return (status);
 }
 
-EXPORT_SYMBOL(acpi_get_next_object);
+ACPI_EXPORT_SYMBOL(acpi_get_next_object)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 13b5fd5854a8..1bb558adee66 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -37,6 +37,7 @@
 #include <linux/delay.h>
 #include <linux/workqueue.h>
 #include <linux/nmi.h>
+#include <linux/kthread.h>
 #include <acpi/acpi.h>
 #include <asm/io.h>
 #include <acpi/acpi_bus.h>
@@ -600,23 +601,41 @@ static void acpi_os_execute_deferred(void *context)
         return_VOID;
 }
 
-acpi_status
-acpi_os_queue_for_execution(u32 priority,
+static int acpi_os_execute_thread(void *context)
+{
+        struct acpi_os_dpc *dpc = (struct acpi_os_dpc *)context;
+        if (dpc) {
+                dpc->function(dpc->context);
+                kfree(dpc);
+        }
+        do_exit(0);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_os_execute
+ *
+ * PARAMETERS:  Type               - Type of the callback
+ *              Function           - Function to be executed
+ *              Context            - Function parameters
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Depending on type, either queues function for deferred execution or
+ *              immediately executes function on a separate thread.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_os_execute(acpi_execute_type type,
                             acpi_osd_exec_callback function, void *context)
 {
         acpi_status status = AE_OK;
         struct acpi_os_dpc *dpc;
         struct work_struct *task;
-
-        ACPI_FUNCTION_TRACE("os_queue_for_execution");
-
-        ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                          "Scheduling function [%p(%p)] for deferred execution.\n",
-                          function, context));
+        struct task_struct *p;
 
         if (!function)
-                return_ACPI_STATUS(AE_BAD_PARAMETER);
-
+                return AE_BAD_PARAMETER;
         /*
          * Allocate/initialize DPC structure.  Note that this memory will be
          * freed by the callee.  The kernel handles the tq_struct list  in a
@@ -627,30 +646,37 @@ acpi_os_queue_for_execution(u32 priority,
          * We can save time and code by allocating the DPC and tq_structs
          * from the same memory.
          */
-
-        dpc =
-            kmalloc(sizeof(struct acpi_os_dpc) + sizeof(struct work_struct),
-                    GFP_ATOMIC);
+        if (type == OSL_NOTIFY_HANDLER) {
+                dpc = kmalloc(sizeof(struct acpi_os_dpc), GFP_KERNEL);
+        } else {
+                dpc = kmalloc(sizeof(struct acpi_os_dpc) +
+                                sizeof(struct work_struct), GFP_ATOMIC);
+        }
         if (!dpc)
-                return_ACPI_STATUS(AE_NO_MEMORY);
-
+                return AE_NO_MEMORY;
         dpc->function = function;
         dpc->context = context;
 
-        task = (void *)(dpc + 1);
-        INIT_WORK(task, acpi_os_execute_deferred, (void *)dpc);
-
-        if (!queue_work(kacpid_wq, task)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                  "Call to queue_work() failed.\n"));
-                kfree(dpc);
-                status = AE_ERROR;
+        if (type == OSL_NOTIFY_HANDLER) {
+                p = kthread_create(acpi_os_execute_thread, dpc, "kacpid_notify");
+                if (!IS_ERR(p)) {
+                        wake_up_process(p);
+                } else {
+                        status = AE_NO_MEMORY;
+                        kfree(dpc);
+                }
+        } else {
+                task = (void *)(dpc + 1);
+                INIT_WORK(task, acpi_os_execute_deferred, (void *)dpc);
+                if (!queue_work(kacpid_wq, task)) {
+                        status = AE_ERROR;
+                        kfree(dpc);
+                }
         }
-
-        return_ACPI_STATUS(status);
+        return status;
 }
 
-EXPORT_SYMBOL(acpi_os_queue_for_execution);
+EXPORT_SYMBOL(acpi_os_execute);
 
 void acpi_os_wait_events_complete(void *context)
 {
@@ -769,9 +795,6 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
         ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n",
                           handle, units, timeout));
 
-        if (in_atomic())
-                timeout = 0;
-
         switch (timeout) {
                 /*
                  * No Wait:
@@ -896,14 +919,6 @@ u8 acpi_os_writable(void *ptr, acpi_size len)
 }
 #endif
 
-u32 acpi_os_get_thread_id(void)
-{
-        if (!in_atomic())
-                return current->pid;
-
-        return 0;
-}
-
 acpi_status acpi_os_signal(u32 function, void *info)
 {
         switch (function) {
@@ -1050,12 +1065,12 @@ void acpi_os_release_lock(acpi_handle handle, acpi_cpu_flags flags)
  *
  * FUNCTION:    acpi_os_create_cache
  *
- * PARAMETERS:  CacheName       - Ascii name for the cache
- *              ObjectSize      - Size of each cached object
- *              MaxDepth        - Maximum depth of the cache (in objects)
- *              ReturnCache     - Where the new cache object is returned
+ * PARAMETERS:  name      - Ascii name for the cache
+ *              size      - Size of each cached object
+ *              depth     - Maximum depth of the cache (in objects) <ignored>
+ *              cache     - Where the new cache object is returned
  *
- * RETURN:      Status
+ * RETURN:      status
  *
  * DESCRIPTION: Create a cache object
  *
@@ -1065,7 +1080,10 @@ acpi_status
 acpi_os_create_cache(char *name, u16 size, u16 depth, acpi_cache_t ** cache)
 {
         *cache = kmem_cache_create(name, size, 0, 0, NULL, NULL);
-        return AE_OK;
+        if (cache == NULL)
+                return AE_ERROR;
+        else
+                return AE_OK;
 }
 
 /*******************************************************************************
@@ -1134,16 +1152,63 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object)
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Get an object from the specified cache.  If cache is empty,
- *              the object is allocated.
+ * DESCRIPTION: Return a zero-filled object.
  *
  ******************************************************************************/
 
 void *acpi_os_acquire_object(acpi_cache_t * cache)
 {
-        void *object = kmem_cache_alloc(cache, GFP_KERNEL);
+        void *object = kmem_cache_zalloc(cache, GFP_KERNEL);
         WARN_ON(!object);
         return object;
 }
 
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_os_validate_interface
+ *
+ * PARAMETERS:  interface           - Requested interface to be validated
+ *
+ * RETURN:      AE_OK if interface is supported, AE_SUPPORT otherwise
+ *
+ * DESCRIPTION: Match an interface string to the interfaces supported by the
+ *              host. Strings originate from an AML call to the _OSI method.
+ *
+ *****************************************************************************/
+
+acpi_status
+acpi_os_validate_interface (char *interface)
+{
+
+    return AE_SUPPORT;
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_os_validate_address
+ *
+ * PARAMETERS:  space_id             - ACPI space ID
+ *              address             - Physical address
+ *              length              - Address length
+ *
+ * RETURN:      AE_OK if address/length is valid for the space_id. Otherwise,
+ *              should return AE_AML_ILLEGAL_ADDRESS.
+ *
+ * DESCRIPTION: Validate a system address via the host OS. Used to validate
+ *              the addresses accessed by AML operation regions.
+ *
+ *****************************************************************************/
+
+acpi_status
+acpi_os_validate_address (
+    u8                   space_id,
+    acpi_physical_address   address,
+    acpi_size               length)
+{
+
+    return AE_OK;
+}
+
+
 #endif
diff --git a/drivers/acpi/parser/psargs.c b/drivers/acpi/parser/psargs.c
index de573be52718..bf88e076c3e9 100644
--- a/drivers/acpi/parser/psargs.c
+++ b/drivers/acpi/parser/psargs.c
@@ -79,7 +79,7 @@ acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state)
         acpi_native_uint byte_count;
         u8 byte_zero_mask = 0x3F;       /* Default [0:5] */
 
-        ACPI_FUNCTION_TRACE("ps_get_next_package_length");
+        ACPI_FUNCTION_TRACE(ps_get_next_package_length);
 
         /*
          * Byte 0 bits [6:7] contain the number of additional bytes
@@ -128,7 +128,7 @@ u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state)
         u8 *start = parser_state->aml;
         u32 package_length;
 
-        ACPI_FUNCTION_TRACE("ps_get_next_package_end");
+        ACPI_FUNCTION_TRACE(ps_get_next_package_end);
 
         /* Function below updates parser_state->Aml */
 
@@ -157,7 +157,7 @@ char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state)
         u8 *start = parser_state->aml;
         u8 *end = parser_state->aml;
 
-        ACPI_FUNCTION_TRACE("ps_get_next_namestring");
+        ACPI_FUNCTION_TRACE(ps_get_next_namestring);
 
         /* Point past any namestring prefix characters (backslash or carat) */
 
@@ -237,7 +237,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
         struct acpi_namespace_node *node;
         union acpi_generic_state scope_info;
 
-        ACPI_FUNCTION_TRACE("ps_get_next_namepath");
+        ACPI_FUNCTION_TRACE(ps_get_next_namepath);
 
         path = acpi_ps_get_next_namestring(parser_state);
         acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP);
@@ -275,6 +275,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
          */
         if (ACPI_SUCCESS(status) &&
             possible_method_call && (node->type == ACPI_TYPE_METHOD)) {
+
                 /* This name is actually a control method invocation */
 
                 method_desc = acpi_ns_get_attached_object(node);
@@ -319,6 +320,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
          * some not_found cases are allowed
          */
         if (status == AE_NOT_FOUND) {
+
                 /* 1) not_found is ok during load pass 1/2 (allow forward references) */
 
                 if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) !=
@@ -354,6 +356,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
 
                 if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) ==
                     ACPI_PARSE_EXECUTE) {
+
                         /* Report a control method execution error */
 
                         status = acpi_ds_method_error(status, walk_state);
@@ -388,7 +391,7 @@ acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state,
         u16 opcode;
         u8 *aml = parser_state->aml;
 
-        ACPI_FUNCTION_TRACE_U32("ps_get_next_simple_arg", arg_type);
+        ACPI_FUNCTION_TRACE_U32(ps_get_next_simple_arg, arg_type);
 
         switch (arg_type) {
         case ARGP_BYTEDATA:
@@ -453,7 +456,7 @@ acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state,
 
         default:
 
-                ACPI_ERROR((AE_INFO, "Invalid arg_type %X", arg_type));
+                ACPI_ERROR((AE_INFO, "Invalid ArgType %X", arg_type));
                 return_VOID;
         }
 
@@ -484,7 +487,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
         u16 opcode;
         u32 name;
 
-        ACPI_FUNCTION_TRACE("ps_get_next_field");
+        ACPI_FUNCTION_TRACE(ps_get_next_field);
 
         /* Determine field type */
 
@@ -590,7 +593,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
         u32 subop;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_PTR("ps_get_next_arg", parser_state);
+        ACPI_FUNCTION_TRACE_PTR(ps_get_next_arg, parser_state);
 
         switch (arg_type) {
         case ARGP_BYTEDATA:
@@ -620,6 +623,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
         case ARGP_FIELDLIST:
 
                 if (parser_state->aml < parser_state->pkg_end) {
+
                         /* Non-empty list */
 
                         while (parser_state->aml < parser_state->pkg_end) {
@@ -645,6 +649,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
         case ARGP_BYTELIST:
 
                 if (parser_state->aml < parser_state->pkg_end) {
+
                         /* Non-empty list */
 
                         arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP);
@@ -673,6 +678,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
                 if (subop == 0 ||
                     acpi_ps_is_leading_char(subop) ||
                     acpi_ps_is_prefix_char(subop)) {
+
                         /* null_name or name_string */
 
                         arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP);
@@ -703,6 +709,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
         case ARGP_OBJLIST:
 
                 if (parser_state->aml < parser_state->pkg_end) {
+
                         /* Non-empty list of variable arguments, nothing returned */
 
                         walk_state->arg_count = ACPI_VAR_ARGS;
@@ -711,7 +718,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 
         default:
 
-                ACPI_ERROR((AE_INFO, "Invalid arg_type: %X", arg_type));
+                ACPI_ERROR((AE_INFO, "Invalid ArgType: %X", arg_type));
                 status = AE_AML_OPERAND_TYPE;
                 break;
         }
diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c
index 00b072e15d19..e1541db3753a 100644
--- a/drivers/acpi/parser/psloop.c
+++ b/drivers/acpi/parser/psloop.c
@@ -83,7 +83,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
         struct acpi_parse_state *parser_state;
         u8 *aml_op_start = NULL;
 
-        ACPI_FUNCTION_TRACE_PTR("ps_parse_loop", walk_state);
+        ACPI_FUNCTION_TRACE_PTR(ps_parse_loop, walk_state);
 
         if (walk_state->descending_callback == NULL) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -95,6 +95,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
 #if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
 
         if (walk_state->walk_type & ACPI_WALK_METHOD_RESTART) {
+
                 /* We are restarting a preempted control method */
 
                 if (acpi_ps_has_completed_scope(parser_state)) {
@@ -128,7 +129,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
 
                                         }
                                         ACPI_EXCEPTION((AE_INFO, status,
-                                                        "get_predicate Failed"));
+                                                        "GetPredicate Failed"));
                                         return_ACPI_STATUS(status);
                                 }
 
@@ -143,6 +144,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
                         ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
                                           "Popped scope, Op=%p\n", op));
                 } else if (walk_state->prev_op) {
+
                         /* We were in the middle of an op */
 
                         op = walk_state->prev_op;
@@ -156,6 +158,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
         while ((parser_state->aml < parser_state->aml_end) || (op)) {
                 aml_op_start = parser_state->aml;
                 if (!op) {
+
                         /* Get the next opcode from the AML stream */
 
                         walk_state->aml_offset =
@@ -213,6 +216,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
                         /* Create Op structure and append to parent's argument list */
 
                         if (walk_state->op_info->flags & AML_NAMED) {
+
                                 /* Allocate a new pre_op if necessary */
 
                                 if (!pre_op) {
@@ -371,7 +375,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
 
                         if (walk_state->op_info) {
                                 ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
-                                                  "Opcode %4.4X [%s] Op %p Aml %p aml_offset %5.5X\n",
+                                                  "Opcode %4.4X [%s] Op %p Aml %p AmlOffset %5.5X\n",
                                                   (u32) op->common.aml_opcode,
                                                   walk_state->op_info->name, op,
                                                   parser_state->aml,
@@ -388,6 +392,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
                 /* Are there any arguments that must be processed? */
 
                 if (walk_state->arg_types) {
+
                         /* Get arguments */
 
                         switch (op->common.aml_opcode) {
@@ -742,7 +747,19 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
                                         if (ACPI_FAILURE(status2)) {
                                                 return_ACPI_STATUS(status2);
                                         }
+
+                                        status2 =
+                                            acpi_ds_result_stack_pop
+                                            (walk_state);
+                                        if (ACPI_FAILURE(status2)) {
+                                                return_ACPI_STATUS(status2);
+                                        }
+
+                                        acpi_ut_delete_generic_state
+                                            (acpi_ut_pop_generic_state
+                                             (&walk_state->control_state));
                                 }
+
                                 acpi_ps_pop_scope(parser_state, &op,
                                                   &walk_state->arg_types,
                                                   &walk_state->arg_count);
@@ -762,6 +779,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
                                                 return_ACPI_STATUS(status2);
                                         }
                                 }
+
                                 acpi_ps_pop_scope(parser_state, &op,
                                                   &walk_state->arg_types,
                                                   &walk_state->arg_count);
@@ -853,6 +871,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
                                 }
 
                                 else if (ACPI_FAILURE(status)) {
+
                                         /* First error is most important */
 
                                         (void)
diff --git a/drivers/acpi/parser/psopcode.c b/drivers/acpi/parser/psopcode.c
index 11d6351ab8b2..4bd25e32769f 100644
--- a/drivers/acpi/parser/psopcode.c
+++ b/drivers/acpi/parser/psopcode.c
@@ -725,12 +725,13 @@ static const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = {
 
 const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode)
 {
-        ACPI_FUNCTION_NAME("ps_get_opcode_info");
+        ACPI_FUNCTION_NAME(ps_get_opcode_info);
 
         /*
          * Detect normal 8-bit opcode or extended 16-bit opcode
          */
         if (!(opcode & 0xFF00)) {
+
                 /* Simple (8-bit) opcode: 0-255, can't index beyond table  */
 
                 return (&acpi_gbl_aml_op_info
@@ -739,6 +740,7 @@ const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode)
 
         if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) &&
             (((u8) opcode) <= MAX_EXTENDED_OPCODE)) {
+
                 /* Valid extended (16-bit) opcode */
 
                 return (&acpi_gbl_aml_op_info
@@ -779,7 +781,7 @@ char *acpi_ps_get_opcode_name(u16 opcode)
         return (op->name);
 
 #else
-        return ("AE_NOT_CONFIGURED");
+        return ("OpcodeName unavailable");
 
 #endif
 }
diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c
index a9f3229f4106..7ee2f2e77525 100644
--- a/drivers/acpi/parser/psparse.c
+++ b/drivers/acpi/parser/psparse.c
@@ -106,6 +106,7 @@ u16 acpi_ps_peek_opcode(struct acpi_parse_state * parser_state)
         opcode = (u16) ACPI_GET8(aml);
 
         if (opcode == AML_EXTENDED_OP_PREFIX) {
+
                 /* Extended opcode, get the second opcode byte */
 
                 aml++;
@@ -137,7 +138,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
         const struct acpi_opcode_info *parent_info;
         union acpi_parse_object *replacement_op = NULL;
 
-        ACPI_FUNCTION_TRACE_PTR("ps_complete_this_op", op);
+        ACPI_FUNCTION_TRACE_PTR(ps_complete_this_op, op);
 
         /* Check for null Op, can happen if AML code is corrupt */
 
@@ -158,6 +159,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
         if (op->common.parent) {
                 prev = op->common.parent->common.value.arg;
                 if (!prev) {
+
                         /* Nothing more to do */
 
                         goto cleanup;
@@ -245,6 +247,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
                 /* We must unlink this op from the parent tree */
 
                 if (prev == op) {
+
                         /* This op is the first in the list */
 
                         if (replacement_op) {
@@ -265,6 +268,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
 
                 else
                         while (prev) {
+
                                 /* Traverse all siblings in the parent's argument list */
 
                                 next = prev->common.next;
@@ -329,7 +333,7 @@ acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
         struct acpi_parse_state *parser_state = &walk_state->parser_state;
         acpi_status status = AE_CTRL_PENDING;
 
-        ACPI_FUNCTION_TRACE_PTR("ps_next_parse_state", op);
+        ACPI_FUNCTION_TRACE_PTR(ps_next_parse_state, op);
 
         switch (callback_status) {
         case AE_CTRL_TERMINATE:
@@ -449,10 +453,10 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
         struct acpi_thread_state *prev_walk_list = acpi_gbl_current_walk_list;
         struct acpi_walk_state *previous_walk_state;
 
-        ACPI_FUNCTION_TRACE("ps_parse_aml");
+        ACPI_FUNCTION_TRACE(ps_parse_aml);
 
         ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
-                          "Entered with walk_state=%p Aml=%p size=%X\n",
+                          "Entered with WalkState=%p Aml=%p size=%X\n",
                           walk_state, walk_state->parser_state.aml,
                           walk_state->parser_state.aml_size));
 
@@ -460,6 +464,7 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
 
         thread = acpi_ut_create_thread_state();
         if (!thread) {
+                acpi_ds_delete_walk_state(walk_state);
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
 
@@ -510,6 +515,7 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
                 } else if (status == AE_CTRL_TERMINATE) {
                         status = AE_OK;
                 } else if ((status != AE_OK) && (walk_state->method_desc)) {
+
                         /* Either the method parse or actual execution failed */
 
                         ACPI_ERROR_METHOD("Method parse/execution failed",
@@ -550,20 +556,9 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
                  */
                 if (((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) ==
                      ACPI_PARSE_EXECUTE) || (ACPI_FAILURE(status))) {
-                        if (walk_state->method_desc) {
-                                /* Decrement the thread count on the method parse tree */
-
-                                if (walk_state->method_desc->method.
-                                    thread_count) {
-                                        walk_state->method_desc->method.
-                                            thread_count--;
-                                } else {
-                                        ACPI_ERROR((AE_INFO,
-                                                    "Invalid zero thread count in method"));
-                                }
-                        }
-
-                        acpi_ds_terminate_control_method(walk_state);
+                        acpi_ds_terminate_control_method(walk_state->
+                                                         method_desc,
+                                                         walk_state);
                 }
 
                 /* Delete this walk state and all linked control states */
@@ -572,7 +567,7 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
                 previous_walk_state = walk_state;
 
                 ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
-                                  "return_value=%p, implicit_value=%p State=%p\n",
+                                  "ReturnValue=%p, ImplicitValue=%p State=%p\n",
                                   walk_state->return_desc,
                                   walk_state->implicit_return_obj, walk_state));
 
@@ -633,12 +628,14 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
                         }
                 } else {
                         if (previous_walk_state->return_desc) {
+
                                 /* Caller doesn't want it, must delete it */
 
                                 acpi_ut_remove_reference(previous_walk_state->
                                                          return_desc);
                         }
                         if (previous_walk_state->implicit_return_obj) {
+
                                 /* Caller doesn't want it, must delete it */
 
                                 acpi_ut_remove_reference(previous_walk_state->
diff --git a/drivers/acpi/parser/psscope.c b/drivers/acpi/parser/psscope.c
index bc6047caccd9..a3e0314de24d 100644
--- a/drivers/acpi/parser/psscope.c
+++ b/drivers/acpi/parser/psscope.c
@@ -106,14 +106,14 @@ acpi_ps_init_scope(struct acpi_parse_state * parser_state,
 {
         union acpi_generic_state *scope;
 
-        ACPI_FUNCTION_TRACE_PTR("ps_init_scope", root_op);
+        ACPI_FUNCTION_TRACE_PTR(ps_init_scope, root_op);
 
         scope = acpi_ut_create_generic_state();
         if (!scope) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
 
-        scope->common.data_type = ACPI_DESC_TYPE_STATE_RPSCOPE;
+        scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_RPSCOPE;
         scope->parse_scope.op = root_op;
         scope->parse_scope.arg_count = ACPI_VAR_ARGS;
         scope->parse_scope.arg_end = parser_state->aml_end;
@@ -147,14 +147,14 @@ acpi_ps_push_scope(struct acpi_parse_state *parser_state,
 {
         union acpi_generic_state *scope;
 
-        ACPI_FUNCTION_TRACE_PTR("ps_push_scope", op);
+        ACPI_FUNCTION_TRACE_PTR(ps_push_scope, op);
 
         scope = acpi_ut_create_generic_state();
         if (!scope) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
 
-        scope->common.data_type = ACPI_DESC_TYPE_STATE_PSCOPE;
+        scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_PSCOPE;
         scope->parse_scope.op = op;
         scope->parse_scope.arg_list = remaining_args;
         scope->parse_scope.arg_count = arg_count;
@@ -165,6 +165,7 @@ acpi_ps_push_scope(struct acpi_parse_state *parser_state,
         acpi_ut_push_generic_state(&parser_state->scope, scope);
 
         if (arg_count == ACPI_VAR_ARGS) {
+
                 /* Multiple arguments */
 
                 scope->parse_scope.arg_end = parser_state->pkg_end;
@@ -199,14 +200,14 @@ acpi_ps_pop_scope(struct acpi_parse_state *parser_state,
 {
         union acpi_generic_state *scope = parser_state->scope;
 
-        ACPI_FUNCTION_TRACE("ps_pop_scope");
+        ACPI_FUNCTION_TRACE(ps_pop_scope);
 
         /* Only pop the scope if there is in fact a next scope */
 
         if (scope->common.next) {
                 scope = acpi_ut_pop_generic_state(&parser_state->scope);
 
-                /* return to parsing previous op */
+                /* Return to parsing previous op */
 
                 *op = scope->parse_scope.op;
                 *arg_list = scope->parse_scope.arg_list;
@@ -217,7 +218,7 @@ acpi_ps_pop_scope(struct acpi_parse_state *parser_state,
 
                 acpi_ut_delete_generic_state(scope);
         } else {
-                /* empty parse stack, prepare to fetch next opcode */
+                /* Empty parse stack, prepare to fetch next opcode */
 
                 *op = NULL;
                 *arg_list = 0;
@@ -246,7 +247,7 @@ void acpi_ps_cleanup_scope(struct acpi_parse_state *parser_state)
 {
         union acpi_generic_state *scope;
 
-        ACPI_FUNCTION_TRACE_PTR("ps_cleanup_scope", parser_state);
+        ACPI_FUNCTION_TRACE_PTR(ps_cleanup_scope, parser_state);
 
         if (!parser_state) {
                 return_VOID;
diff --git a/drivers/acpi/parser/pstree.c b/drivers/acpi/parser/pstree.c
index dd6f16726fc4..0015717ef096 100644
--- a/drivers/acpi/parser/pstree.c
+++ b/drivers/acpi/parser/pstree.c
@@ -77,6 +77,7 @@ union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn)
 
         op_info = acpi_ps_get_opcode_info(op->common.aml_opcode);
         if (op_info->class == AML_CLASS_UNKNOWN) {
+
                 /* Invalid opcode or ASCII character */
 
                 return (NULL);
@@ -85,6 +86,7 @@ union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn)
         /* Check if this opcode requires argument sub-objects */
 
         if (!(op_info->flags & AML_HAS_ARGS)) {
+
                 /* Has no linked argument objects */
 
                 return (NULL);
@@ -130,6 +132,7 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg)
 
         op_info = acpi_ps_get_opcode_info(op->common.aml_opcode);
         if (op_info->class == AML_CLASS_UNKNOWN) {
+
                 /* Invalid opcode */
 
                 ACPI_ERROR((AE_INFO, "Invalid AML Opcode: 0x%2.2X",
@@ -140,6 +143,7 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg)
         /* Check if this opcode requires argument sub-objects */
 
         if (!(op_info->flags & AML_HAS_ARGS)) {
+
                 /* Has no linked argument objects */
 
                 return;
@@ -148,6 +152,7 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg)
         /* Append the argument to the linked argument list */
 
         if (op->common.value.arg) {
+
                 /* Append to existing argument list */
 
                 prev_arg = op->common.value.arg;
@@ -222,12 +227,14 @@ union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
                 }
 
                 if (arg == origin) {
+
                         /* Reached parent of origin, end search */
 
                         return (NULL);
                 }
 
                 if (parent->common.next) {
+
                         /* Found sibling of parent */
 
                         return (parent->common.next);
@@ -299,5 +306,4 @@ union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op)
         return (child);
 }
 #endif
-
 #endif                          /*  ACPI_FUTURE_USAGE  */
diff --git a/drivers/acpi/parser/psutils.c b/drivers/acpi/parser/psutils.c
index 3e07cb9cb748..182474ae8ce9 100644
--- a/drivers/acpi/parser/psutils.c
+++ b/drivers/acpi/parser/psutils.c
@@ -89,7 +89,7 @@ void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode)
 {
         ACPI_FUNCTION_ENTRY();
 
-        op->common.data_type = ACPI_DESC_TYPE_PARSER;
+        op->common.descriptor_type = ACPI_DESC_TYPE_PARSER;
         op->common.aml_opcode = opcode;
 
         ACPI_DISASM_ONLY_MEMBERS(ACPI_STRNCPY(op->common.aml_op_name,
@@ -135,6 +135,7 @@ union acpi_parse_object *acpi_ps_alloc_op(u16 opcode)
         /* Allocate the minimum required size object */
 
         if (flags == ACPI_PARSEOP_GENERIC) {
+
                 /* The generic op (default) is by far the most common (16 to 1) */
 
                 op = acpi_os_acquire_object(acpi_gbl_ps_node_cache);
@@ -171,7 +172,7 @@ union acpi_parse_object *acpi_ps_alloc_op(u16 opcode)
 
 void acpi_ps_free_op(union acpi_parse_object *op)
 {
-        ACPI_FUNCTION_NAME("ps_free_op");
+        ACPI_FUNCTION_NAME(ps_free_op);
 
         if (op->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Free retval op: %p\n",
diff --git a/drivers/acpi/parser/pswalk.c b/drivers/acpi/parser/pswalk.c
index 06f05bfd7612..a84a547a0f1b 100644
--- a/drivers/acpi/parser/pswalk.c
+++ b/drivers/acpi/parser/pswalk.c
@@ -64,18 +64,21 @@ void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root)
         union acpi_parse_object *next = NULL;
         union acpi_parse_object *parent = NULL;
 
-        ACPI_FUNCTION_TRACE_PTR("ps_delete_parse_tree", subtree_root);
+        ACPI_FUNCTION_TRACE_PTR(ps_delete_parse_tree, subtree_root);
 
         /* Visit all nodes in the subtree */
 
         while (op) {
+
                 /* Check if we are not ascending */
 
                 if (op != parent) {
+
                         /* Look for an argument or child of the current op */
 
                         next = acpi_ps_get_arg(op, 0);
                         if (next) {
+
                                 /* Still going downward in tree (Op is not completed yet) */
 
                                 op = next;
diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c
index 2dd48cbb7c02..5d996c1140af 100644
--- a/drivers/acpi/parser/psxface.c
+++ b/drivers/acpi/parser/psxface.c
@@ -50,14 +50,14 @@
 ACPI_MODULE_NAME("psxface")
 
 /* Local Prototypes */
-static void acpi_ps_start_trace(struct acpi_parameter_info *info);
+static void acpi_ps_start_trace(struct acpi_evaluate_info *info);
 
-static void acpi_ps_stop_trace(struct acpi_parameter_info *info);
+static void acpi_ps_stop_trace(struct acpi_evaluate_info *info);
 
-static acpi_status acpi_ps_execute_pass(struct acpi_parameter_info *info);
+static acpi_status acpi_ps_execute_pass(struct acpi_evaluate_info *info);
 
 static void
-acpi_ps_update_parameter_list(struct acpi_parameter_info *info, u16 action);
+acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action);
 
 /*******************************************************************************
  *
@@ -113,7 +113,7 @@ acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags)
  *
  ******************************************************************************/
 
-static void acpi_ps_start_trace(struct acpi_parameter_info *info)
+static void acpi_ps_start_trace(struct acpi_evaluate_info *info)
 {
         acpi_status status;
 
@@ -125,7 +125,7 @@ static void acpi_ps_start_trace(struct acpi_parameter_info *info)
         }
 
         if ((!acpi_gbl_trace_method_name) ||
-            (acpi_gbl_trace_method_name != info->node->name.integer)) {
+            (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) {
                 goto exit;
         }
 
@@ -158,7 +158,7 @@ static void acpi_ps_start_trace(struct acpi_parameter_info *info)
  *
  ******************************************************************************/
 
-static void acpi_ps_stop_trace(struct acpi_parameter_info *info)
+static void acpi_ps_stop_trace(struct acpi_evaluate_info *info)
 {
         acpi_status status;
 
@@ -170,7 +170,7 @@ static void acpi_ps_stop_trace(struct acpi_parameter_info *info)
         }
 
         if ((!acpi_gbl_trace_method_name) ||
-            (acpi_gbl_trace_method_name != info->node->name.integer)) {
+            (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) {
                 goto exit;
         }
 
@@ -212,22 +212,23 @@ static void acpi_ps_stop_trace(struct acpi_parameter_info *info)
  *
  ******************************************************************************/
 
-acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
+acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ps_execute_method");
+        ACPI_FUNCTION_TRACE(ps_execute_method);
 
         /* Validate the Info and method Node */
 
-        if (!info || !info->node) {
+        if (!info || !info->resolved_node) {
                 return_ACPI_STATUS(AE_NULL_ENTRY);
         }
 
         /* Init for new method, wait on concurrency semaphore */
 
         status =
-            acpi_ds_begin_method_execution(info->node, info->obj_desc, NULL);
+            acpi_ds_begin_method_execution(info->resolved_node, info->obj_desc,
+                                           NULL);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
         }
@@ -248,7 +249,7 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
          */
         ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
                           "**** Begin Method Parse **** Entry=%p obj=%p\n",
-                          info->node, info->obj_desc));
+                          info->resolved_node, info->obj_desc));
 
         info->pass_number = 1;
         status = acpi_ps_execute_pass(info);
@@ -261,7 +262,7 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
          */
         ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
                           "**** Begin Method Execution **** Entry=%p obj=%p\n",
-                          info->node, info->obj_desc));
+                          info->resolved_node, info->obj_desc));
 
         info->pass_number = 3;
         status = acpi_ps_execute_pass(info);
@@ -286,8 +287,7 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
          * a control exception code
          */
         if (info->return_object) {
-                ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
-                                  "Method returned obj_desc=%p\n",
+                ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n",
                                   info->return_object));
                 ACPI_DUMP_STACK_ENTRY(info->return_object);
 
@@ -301,7 +301,7 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
  *
  * FUNCTION:    acpi_ps_update_parameter_list
  *
- * PARAMETERS:  Info            - See struct acpi_parameter_info
+ * PARAMETERS:  Info            - See struct acpi_evaluate_info
  *                                (Used: parameter_type and Parameters)
  *              Action          - Add or Remove reference
  *
@@ -312,14 +312,16 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
  ******************************************************************************/
 
 static void
-acpi_ps_update_parameter_list(struct acpi_parameter_info *info, u16 action)
+acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action)
 {
         acpi_native_uint i;
 
         if ((info->parameter_type == ACPI_PARAM_ARGS) && (info->parameters)) {
+
                 /* Update reference count for each parameter */
 
                 for (i = 0; info->parameters[i]; i++) {
+
                         /* Ignore errors, just do them all */
 
                         (void)acpi_ut_update_object_reference(info->
@@ -333,7 +335,7 @@ acpi_ps_update_parameter_list(struct acpi_parameter_info *info, u16 action)
  *
  * FUNCTION:    acpi_ps_execute_pass
  *
- * PARAMETERS:  Info            - See struct acpi_parameter_info
+ * PARAMETERS:  Info            - See struct acpi_evaluate_info
  *                                (Used: pass_number, Node, and obj_desc)
  *
  * RETURN:      Status
@@ -342,13 +344,13 @@ acpi_ps_update_parameter_list(struct acpi_parameter_info *info, u16 action)
  *
  ******************************************************************************/
 
-static acpi_status acpi_ps_execute_pass(struct acpi_parameter_info *info)
+static acpi_status acpi_ps_execute_pass(struct acpi_evaluate_info *info)
 {
         acpi_status status;
         union acpi_parse_object *op;
         struct acpi_walk_state *walk_state;
 
-        ACPI_FUNCTION_TRACE("ps_execute_pass");
+        ACPI_FUNCTION_TRACE(ps_execute_pass);
 
         /* Create and init a Root Node */
 
@@ -367,7 +369,7 @@ static acpi_status acpi_ps_execute_pass(struct acpi_parameter_info *info)
                 goto cleanup;
         }
 
-        status = acpi_ds_init_aml_walk(walk_state, op, info->node,
+        status = acpi_ds_init_aml_walk(walk_state, op, info->resolved_node,
                                        info->obj_desc->method.aml_start,
                                        info->obj_desc->method.aml_length,
                                        info->pass_number == 1 ? NULL : info,
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 8920e8c6e246..228bdb626502 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -38,6 +38,7 @@
 #include <linux/spinlock.h>
 #include <linux/pm.h>
 #include <linux/pci.h>
+#include <linux/mutex.h>
 
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
@@ -91,7 +92,7 @@ static struct {
         int count;
         struct list_head entries;
 } acpi_link;
-DECLARE_MUTEX(acpi_link_lock);
+DEFINE_MUTEX(acpi_link_lock);
 
 /* --------------------------------------------------------------------------
                             PCI Link Device Management
@@ -641,19 +642,19 @@ acpi_pci_link_allocate_irq(acpi_handle handle,
                 return_VALUE(-1);
         }
 
-        down(&acpi_link_lock);
+        mutex_lock(&acpi_link_lock);
         if (acpi_pci_link_allocate(link)) {
-                up(&acpi_link_lock);
+                mutex_unlock(&acpi_link_lock);
                 return_VALUE(-1);
         }
 
         if (!link->irq.active) {
-                up(&acpi_link_lock);
+                mutex_unlock(&acpi_link_lock);
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link active IRQ is 0!\n"));
                 return_VALUE(-1);
         }
         link->refcnt++;
-        up(&acpi_link_lock);
+        mutex_unlock(&acpi_link_lock);
 
         if (triggering)
                 *triggering = link->irq.triggering;
@@ -691,9 +692,9 @@ int acpi_pci_link_free_irq(acpi_handle handle)
                 return_VALUE(-1);
         }
 
-        down(&acpi_link_lock);
+        mutex_lock(&acpi_link_lock);
         if (!link->irq.initialized) {
-                up(&acpi_link_lock);
+                mutex_unlock(&acpi_link_lock);
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link isn't initialized\n"));
                 return_VALUE(-1);
         }
@@ -716,7 +717,7 @@ int acpi_pci_link_free_irq(acpi_handle handle)
         if (link->refcnt == 0) {
                 acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
         }
-        up(&acpi_link_lock);
+        mutex_unlock(&acpi_link_lock);
         return_VALUE(link->irq.active);
 }
 
@@ -747,7 +748,7 @@ static int acpi_pci_link_add(struct acpi_device *device)
         strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
         acpi_driver_data(device) = link;
 
-        down(&acpi_link_lock);
+        mutex_lock(&acpi_link_lock);
         result = acpi_pci_link_get_possible(link);
         if (result)
                 goto end;
@@ -782,7 +783,7 @@ static int acpi_pci_link_add(struct acpi_device *device)
       end:
         /* disable all links -- to be activated on use */
         acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
-        up(&acpi_link_lock);
+        mutex_unlock(&acpi_link_lock);
 
         if (result)
                 kfree(link);
@@ -840,9 +841,9 @@ static int acpi_pci_link_remove(struct acpi_device *device, int type)
 
         link = (struct acpi_pci_link *)acpi_driver_data(device);
 
-        down(&acpi_link_lock);
+        mutex_lock(&acpi_link_lock);
         list_del(&link->node);
-        up(&acpi_link_lock);
+        mutex_unlock(&acpi_link_lock);
 
         kfree(link);
 
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index ab00afec26f7..decaebb4cbe9 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -388,7 +388,7 @@ static int acpi_processor_remove_fs(struct acpi_device *device)
 
 /* Use the acpiid in MADT to map cpus in case of SMP */
 #ifndef CONFIG_SMP
-#define convert_acpiid_to_cpu(acpi_id) (0xff)
+#define convert_acpiid_to_cpu(acpi_id) (-1)
 #else
 
 #ifdef CONFIG_IA64
@@ -401,7 +401,7 @@ static int acpi_processor_remove_fs(struct acpi_device *device)
 #define ARCH_BAD_APICID         (0xff)
 #endif
 
-static u8 convert_acpiid_to_cpu(u8 acpi_id)
+static int convert_acpiid_to_cpu(u8 acpi_id)
 {
         u16 apic_id;
         int i;
@@ -427,7 +427,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
         acpi_status status = 0;
         union acpi_object object = { 0 };
         struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
-        u8 cpu_index;
+        int cpu_index;
         static int cpu0_initialized;
 
         ACPI_FUNCTION_TRACE("acpi_processor_get_info");
@@ -473,7 +473,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
         cpu_index = convert_acpiid_to_cpu(pr->acpi_id);
 
         /* Handle UP system running SMP kernel, with no LAPIC in MADT */
-        if (!cpu0_initialized && (cpu_index == 0xff) &&
+        if (!cpu0_initialized && (cpu_index == -1) &&
             (num_online_cpus() == 1)) {
                 cpu_index = 0;
         }
@@ -487,7 +487,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
          *  less than the max # of CPUs. They should be ignored _iff
          *  they are physically not present.
          */
-        if (cpu_index >= NR_CPUS) {
+        if (cpu_index == -1) {
                 if (ACPI_FAILURE
                     (acpi_processor_hotadd_init(pr->handle, &pr->id))) {
                         ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
@@ -558,8 +558,8 @@ static int acpi_processor_start(struct acpi_device *device)
          */
         if (processor_device_array[pr->id] != NULL &&
             processor_device_array[pr->id] != (void *)device) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "BIOS reporting wrong ACPI id"
-                        "for the processor\n"));
+                printk(KERN_WARNING "BIOS reported wrong ACPI id"
+                        "for the processor\n");
                 return_VALUE(-ENODEV);
         }
         processor_device_array[pr->id] = (void *)device;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 80fa43471f48..3b97a5eae9e8 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -54,10 +54,10 @@ ACPI_MODULE_NAME("acpi_processor")
 #define US_TO_PM_TIMER_TICKS(t)         ((t * (PM_TIMER_FREQUENCY/1000)) / 1000)
 #define C2_OVERHEAD                     4       /* 1us (3.579 ticks per us) */
 #define C3_OVERHEAD                     4       /* 1us (3.579 ticks per us) */
-static void (*pm_idle_save) (void);
+static void (*pm_idle_save) (void) __read_mostly;
 module_param(max_cstate, uint, 0644);
 
-static unsigned int nocst = 0;
+static unsigned int nocst __read_mostly;
 module_param(nocst, uint, 0000);
 
 /*
@@ -67,7 +67,7 @@ module_param(nocst, uint, 0000);
  * 100 HZ: 0x0000000F: 4 jiffies = 40ms
  * reduce history for more aggressive entry into C3
  */
-static unsigned int bm_history =
+static unsigned int bm_history __read_mostly =
     (HZ >= 800 ? 0xFFFFFFFF : ((1U << (HZ / 25)) - 1));
 module_param(bm_history, uint, 0644);
 /* --------------------------------------------------------------------------
@@ -1081,7 +1081,7 @@ int acpi_processor_power_init(struct acpi_processor *pr,
                               struct acpi_device *device)
 {
         acpi_status status = 0;
-        static int first_run = 0;
+        static int first_run;
         struct proc_dir_entry *entry = NULL;
         unsigned int i;
 
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index f36db22ce1ae..41aaaba74b19 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -34,6 +34,7 @@
 #ifdef CONFIG_X86_ACPI_CPUFREQ_PROC_INTF
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/mutex.h>
 
 #include <asm/uaccess.h>
 #endif
@@ -48,7 +49,7 @@
 #define _COMPONENT              ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("acpi_processor")
 
-static DECLARE_MUTEX(performance_sem);
+static DEFINE_MUTEX(performance_mutex);
 
 /*
  * _PPC support is implemented as a CPUfreq policy notifier:
@@ -72,7 +73,7 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb,
         struct acpi_processor *pr;
         unsigned int ppc = 0;
 
-        down(&performance_sem);
+        mutex_lock(&performance_mutex);
 
         if (event != CPUFREQ_INCOMPATIBLE)
                 goto out;
@@ -93,7 +94,7 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb,
                                      core_frequency * 1000);
 
       out:
-        up(&performance_sem);
+        mutex_unlock(&performance_mutex);
 
         return 0;
 }
@@ -553,6 +554,230 @@ static void acpi_cpufreq_remove_file(struct acpi_processor *pr)
 }
 #endif                          /* CONFIG_X86_ACPI_CPUFREQ_PROC_INTF */
 
+static int acpi_processor_get_psd(struct acpi_processor *pr)
+{
+        int result = 0;
+        acpi_status status = AE_OK;
+        struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+        struct acpi_buffer format = {sizeof("NNNNN"), "NNNNN"};
+        struct acpi_buffer state = {0, NULL};
+        union acpi_object  *psd = NULL;
+        struct acpi_psd_package *pdomain;
+
+        status = acpi_evaluate_object(pr->handle, "_PSD", NULL, &buffer);
+        if (ACPI_FAILURE(status)) {
+                return -ENODEV;
+        }
+
+        psd = (union acpi_object *) buffer.pointer;
+        if (!psd || (psd->type != ACPI_TYPE_PACKAGE)) {
+                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSD data\n"));
+                result = -EFAULT;
+                goto end;
+        }
+
+        if (psd->package.count != 1) {
+                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSD data\n"));
+                result = -EFAULT;
+                goto end;
+        }
+
+        pdomain = &(pr->performance->domain_info);
+
+        state.length = sizeof(struct acpi_psd_package);
+        state.pointer = pdomain;
+
+        status = acpi_extract_package(&(psd->package.elements[0]),
+                &format, &state);
+        if (ACPI_FAILURE(status)) {
+                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSD data\n"));
+                result = -EFAULT;
+                goto end;
+        }
+
+        if (pdomain->num_entries != ACPI_PSD_REV0_ENTRIES) {
+                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _PSD:num_entries\n"));
+                result = -EFAULT;
+                goto end;
+        }
+
+        if (pdomain->revision != ACPI_PSD_REV0_REVISION) {
+                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _PSD:revision\n"));
+                result = -EFAULT;
+                goto end;
+        }
+
+end:
+        acpi_os_free(buffer.pointer);
+        return result;
+}
+
+int acpi_processor_preregister_performance(
+                struct acpi_processor_performance **performance)
+{
+        int count, count_target;
+        int retval = 0;
+        unsigned int i, j;
+        cpumask_t covered_cpus;
+        struct acpi_processor *pr;
+        struct acpi_psd_package *pdomain;
+        struct acpi_processor *match_pr;
+        struct acpi_psd_package *match_pdomain;
+
+        mutex_lock(&performance_mutex);
+
+        retval = 0;
+
+        /* Call _PSD for all CPUs */
+        for_each_possible_cpu(i) {
+                pr = processors[i];
+                if (!pr) {
+                        /* Look only at processors in ACPI namespace */
+                        continue;
+                }
+
+                if (pr->performance) {
+                        retval = -EBUSY;
+                        continue;
+                }
+
+                if (!performance || !performance[i]) {
+                        retval = -EINVAL;
+                        continue;
+                }
+
+                pr->performance = performance[i];
+                cpu_set(i, pr->performance->shared_cpu_map);
+                if (acpi_processor_get_psd(pr)) {
+                        retval = -EINVAL;
+                        continue;
+                }
+        }
+        if (retval)
+                goto err_ret;
+
+        /*
+         * Now that we have _PSD data from all CPUs, lets setup P-state 
+         * domain info.
+         */
+        for_each_possible_cpu(i) {
+                pr = processors[i];
+                if (!pr)
+                        continue;
+
+                /* Basic validity check for domain info */
+                pdomain = &(pr->performance->domain_info);
+                if ((pdomain->revision != ACPI_PSD_REV0_REVISION) ||
+                    (pdomain->num_entries != ACPI_PSD_REV0_ENTRIES)) {
+                        retval = -EINVAL;
+                        goto err_ret;
+                }
+                if (pdomain->coord_type != DOMAIN_COORD_TYPE_SW_ALL &&
+                    pdomain->coord_type != DOMAIN_COORD_TYPE_SW_ANY &&
+                    pdomain->coord_type != DOMAIN_COORD_TYPE_HW_ALL) {
+                        retval = -EINVAL;
+                        goto err_ret;
+                }
+        }
+
+        cpus_clear(covered_cpus);
+        for_each_possible_cpu(i) {
+                pr = processors[i];
+                if (!pr)
+                        continue;
+
+                if (cpu_isset(i, covered_cpus))
+                        continue;
+
+                pdomain = &(pr->performance->domain_info);
+                cpu_set(i, pr->performance->shared_cpu_map);
+                cpu_set(i, covered_cpus);
+                if (pdomain->num_processors <= 1)
+                        continue;
+
+                /* Validate the Domain info */
+                count_target = pdomain->num_processors;
+                count = 1;
+                if (pdomain->coord_type == DOMAIN_COORD_TYPE_SW_ALL ||
+                    pdomain->coord_type == DOMAIN_COORD_TYPE_HW_ALL) {
+                        pr->performance->shared_type = CPUFREQ_SHARED_TYPE_ALL;
+                } else if (pdomain->coord_type == DOMAIN_COORD_TYPE_SW_ANY) {
+                        pr->performance->shared_type = CPUFREQ_SHARED_TYPE_ANY;
+                }
+
+                for_each_possible_cpu(j) {
+                        if (i == j)
+                                continue;
+
+                        match_pr = processors[j];
+                        if (!match_pr)
+                                continue;
+
+                        match_pdomain = &(match_pr->performance->domain_info);
+                        if (match_pdomain->domain != pdomain->domain)
+                                continue;
+
+                        /* Here i and j are in the same domain */
+
+                        if (match_pdomain->num_processors != count_target) {
+                                retval = -EINVAL;
+                                goto err_ret;
+                        }
+
+                        if (pdomain->coord_type != match_pdomain->coord_type) {
+                                retval = -EINVAL;
+                                goto err_ret;
+                        }
+
+                        cpu_set(j, covered_cpus);
+                        cpu_set(j, pr->performance->shared_cpu_map);
+                        count++;
+                }
+
+                for_each_possible_cpu(j) {
+                        if (i == j)
+                                continue;
+
+                        match_pr = processors[j];
+                        if (!match_pr)
+                                continue;
+
+                        match_pdomain = &(match_pr->performance->domain_info);
+                        if (match_pdomain->domain != pdomain->domain)
+                                continue;
+
+                        match_pr->performance->shared_type = 
+                                        pr->performance->shared_type;
+                        match_pr->performance->shared_cpu_map =
+                                pr->performance->shared_cpu_map;
+                }
+        }
+
+err_ret:
+        if (retval) {
+                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error while parsing _PSD domain information. Assuming no coordination\n"));
+        }
+
+        for_each_possible_cpu(i) {
+                pr = processors[i];
+                if (!pr || !pr->performance)
+                        continue;
+
+                /* Assume no coordination on any error parsing domain info */
+                if (retval) {
+                        cpus_clear(pr->performance->shared_cpu_map);
+                        cpu_set(i, pr->performance->shared_cpu_map);
+                        pr->performance->shared_type = CPUFREQ_SHARED_TYPE_ALL;
+                }
+                pr->performance = NULL; /* Will be set for real in register */
+        }
+
+        mutex_unlock(&performance_mutex);
+        return retval;
+}
+EXPORT_SYMBOL(acpi_processor_preregister_performance);
+
+
 int
 acpi_processor_register_performance(struct acpi_processor_performance
                                     *performance, unsigned int cpu)
@@ -564,16 +789,16 @@ acpi_processor_register_performance(struct acpi_processor_performance
         if (!(acpi_processor_ppc_status & PPC_REGISTERED))
                 return_VALUE(-EINVAL);
 
-        down(&performance_sem);
+        mutex_lock(&performance_mutex);
 
         pr = processors[cpu];
         if (!pr) {
-                up(&performance_sem);
+                mutex_unlock(&performance_mutex);
                 return_VALUE(-ENODEV);
         }
 
         if (pr->performance) {
-                up(&performance_sem);
+                mutex_unlock(&performance_mutex);
                 return_VALUE(-EBUSY);
         }
 
@@ -583,13 +808,13 @@ acpi_processor_register_performance(struct acpi_processor_performance
 
         if (acpi_processor_get_performance_info(pr)) {
                 pr->performance = NULL;
-                up(&performance_sem);
+                mutex_unlock(&performance_mutex);
                 return_VALUE(-EIO);
         }
 
         acpi_cpufreq_add_file(pr);
 
-        up(&performance_sem);
+        mutex_unlock(&performance_mutex);
         return_VALUE(0);
 }
 
@@ -603,11 +828,11 @@ acpi_processor_unregister_performance(struct acpi_processor_performance
 
         ACPI_FUNCTION_TRACE("acpi_processor_unregister_performance");
 
-        down(&performance_sem);
+        mutex_lock(&performance_mutex);
 
         pr = processors[cpu];
         if (!pr) {
-                up(&performance_sem);
+                mutex_unlock(&performance_mutex);
                 return_VOID;
         }
 
@@ -617,7 +842,7 @@ acpi_processor_unregister_performance(struct acpi_processor_performance
 
         acpi_cpufreq_remove_file(pr);
 
-        up(&performance_sem);
+        mutex_unlock(&performance_mutex);
 
         return_VOID;
 }
diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c
index 4038dbfa63a0..cf87b0230026 100644
--- a/drivers/acpi/resources/rscalc.c
+++ b/drivers/acpi/resources/rscalc.c
@@ -78,6 +78,7 @@ static u8 acpi_rs_count_set_bits(u16 bit_field)
         ACPI_FUNCTION_ENTRY();
 
         for (bits_set = 0; bit_field; bits_set++) {
+
                 /* Zero the least significant bit that is set */
 
                 bit_field &= (bit_field - 1);
@@ -154,15 +155,18 @@ acpi_rs_stream_option_length(u32 resource_length,
          * length, minus one byte for the resource_source_index itself.
          */
         if (resource_length > minimum_aml_resource_length) {
+
                 /* Compute the length of the optional string */
 
                 string_length =
                     resource_length - minimum_aml_resource_length - 1;
         }
 
-        /* Round up length to 32 bits for internal structure alignment */
-
-        return (ACPI_ROUND_UP_to_32_bITS(string_length));
+        /*
+         * Round the length up to a multiple of the native word in order to
+         * guarantee that the entire resource descriptor is native word aligned
+         */
+        return ((u32) ACPI_ROUND_UP_TO_NATIVE_WORD(string_length));
 }
 
 /*******************************************************************************
@@ -186,11 +190,12 @@ acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed)
         acpi_size aml_size_needed = 0;
         acpi_rs_length total_size;
 
-        ACPI_FUNCTION_TRACE("rs_get_aml_length");
+        ACPI_FUNCTION_TRACE(rs_get_aml_length);
 
         /* Traverse entire list of internal resource descriptors */
 
         while (resource) {
+
                 /* Validate the descriptor type */
 
                 if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
@@ -214,6 +219,7 @@ acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed)
                          * is a Large Resource data type.
                          */
                         if (resource->data.vendor.byte_length > 7) {
+
                                 /* Base size of a Large resource descriptor */
 
                                 total_size =
@@ -332,20 +338,22 @@ acpi_rs_get_list_length(u8 * aml_buffer,
         acpi_status status;
         u8 *end_aml;
         u8 *buffer;
-        u32 buffer_size = 0;
+        u32 buffer_size;
         u16 temp16;
         u16 resource_length;
         u32 extra_struct_bytes;
         u8 resource_index;
         u8 minimum_aml_resource_length;
 
-        ACPI_FUNCTION_TRACE("rs_get_list_length");
+        ACPI_FUNCTION_TRACE(rs_get_list_length);
 
+        *size_needed = 0;
         end_aml = aml_buffer + aml_buffer_length;
 
         /* Walk the list of AML resource descriptors */
 
         while (aml_buffer < end_aml) {
+
                 /* Validate the Resource Type and Resource Length */
 
                 status = acpi_ut_validate_resource(aml_buffer, &resource_index);
@@ -386,35 +394,28 @@ acpi_rs_get_list_length(u8 * aml_buffer,
                         break;
 
                 case ACPI_RESOURCE_NAME_VENDOR_SMALL:
+                case ACPI_RESOURCE_NAME_VENDOR_LARGE:
                         /*
                          * Vendor Resource:
-                         * Ensure a 32-bit boundary for the structure
+                         * Get the number of vendor data bytes
                          */
-                        extra_struct_bytes =
-                            ACPI_ROUND_UP_to_32_bITS(resource_length);
+                        extra_struct_bytes = resource_length;
                         break;
 
                 case ACPI_RESOURCE_NAME_END_TAG:
                         /*
-                         * End Tag: This is the normal exit, add size of end_tag
+                         * End Tag:
+                         * This is the normal exit, add size of end_tag
                          */
-                        *size_needed = buffer_size + ACPI_RS_SIZE_MIN;
+                        *size_needed += ACPI_RS_SIZE_MIN;
                         return_ACPI_STATUS(AE_OK);
 
-                case ACPI_RESOURCE_NAME_VENDOR_LARGE:
-                        /*
-                         * Vendor Resource:
-                         * Add vendor data and ensure a 32-bit boundary for the structure
-                         */
-                        extra_struct_bytes =
-                            ACPI_ROUND_UP_to_32_bITS(resource_length);
-                        break;
-
                 case ACPI_RESOURCE_NAME_ADDRESS32:
                 case ACPI_RESOURCE_NAME_ADDRESS16:
+                case ACPI_RESOURCE_NAME_ADDRESS64:
                         /*
-                         * 32-Bit or 16-bit Address Resource:
-                         * Add the size of any optional data (resource_source)
+                         * Address Resource:
+                         * Add the size of the optional resource_source
                          */
                         extra_struct_bytes =
                             acpi_rs_stream_option_length(resource_length,
@@ -423,50 +424,46 @@ acpi_rs_get_list_length(u8 * aml_buffer,
 
                 case ACPI_RESOURCE_NAME_EXTENDED_IRQ:
                         /*
-                         * Extended IRQ:
-                         * Point past the interrupt_vector_flags to get the
-                         * interrupt_table_length.
+                         * Extended IRQ Resource:
+                         * Using the interrupt_table_length, add 4 bytes for each additional
+                         * interrupt. Note: at least one interrupt is required and is
+                         * included in the minimum descriptor size (reason for the -1)
                          */
-                        buffer++;
+                        extra_struct_bytes = (buffer[1] - 1) * sizeof(u32);
 
-                        extra_struct_bytes =
-                            /*
-                             * Add 4 bytes for each additional interrupt. Note: at
-                             * least one interrupt is required and is included in
-                             * the minimum descriptor size
-                             */
-                            ((*buffer - 1) * sizeof(u32)) +
-                            /* Add the size of any optional data (resource_source) */
+                        /* Add the size of the optional resource_source */
+
+                        extra_struct_bytes +=
                             acpi_rs_stream_option_length(resource_length -
                                                          extra_struct_bytes,
                                                          minimum_aml_resource_length);
                         break;
 
-                case ACPI_RESOURCE_NAME_ADDRESS64:
-                        /*
-                         * 64-Bit Address Resource:
-                         * Add the size of any optional data (resource_source)
-                         * Ensure a 64-bit boundary for the structure
-                         */
-                        extra_struct_bytes =
-                            ACPI_ROUND_UP_to_64_bITS
-                            (acpi_rs_stream_option_length
-                             (resource_length, minimum_aml_resource_length));
-                        break;
-
                 default:
                         break;
                 }
 
-                /* Update the required buffer size for the internal descriptor structs */
+                /*
+                 * Update the required buffer size for the internal descriptor structs
+                 *
+                 * Important: Round the size up for the appropriate alignment. This
+                 * is a requirement on IA64.
+                 */
+                buffer_size = acpi_gbl_resource_struct_sizes[resource_index] +
+                    extra_struct_bytes;
+                buffer_size = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size);
 
-                temp16 = (u16) (acpi_gbl_resource_struct_sizes[resource_index] +
-                                extra_struct_bytes);
-                buffer_size += (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(temp16);
+                *size_needed += buffer_size;
+
+                ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
+                                  "Type %.2X, AmlLength %.2X InternalLength %.2X\n",
+                                  acpi_ut_get_resource_type(aml_buffer),
+                                  acpi_ut_get_descriptor_length(aml_buffer),
+                                  buffer_size));
 
                 /*
-                 * Point to the next resource within the stream
-                 * using the size of the header plus the length contained in the header
+                 * Point to the next resource within the AML stream using the length
+                 * contained in the resource descriptor header
                  */
                 aml_buffer += acpi_ut_get_descriptor_length(aml_buffer);
         }
@@ -506,7 +503,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
         u8 name_found;
         u32 table_index;
 
-        ACPI_FUNCTION_TRACE("rs_get_pci_routing_table_length");
+        ACPI_FUNCTION_TRACE(rs_get_pci_routing_table_length);
 
         number_of_elements = package_object->package.count;
 
@@ -523,6 +520,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
         top_object_list = package_object->package.elements;
 
         for (index = 0; index < number_of_elements; index++) {
+
                 /* Dereference the sub-package */
 
                 package_element = *top_object_list;
@@ -581,7 +579,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
 
                 /* Round up the size since each element must be aligned */
 
-                temp_size_needed = ACPI_ROUND_UP_to_64_bITS(temp_size_needed);
+                temp_size_needed = ACPI_ROUND_UP_TO_64BIT(temp_size_needed);
 
                 /* Point to the next union acpi_operand_object */
 
@@ -589,7 +587,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
         }
 
         /*
-         * Adding an extra element to the end of the list, essentially a
+         * Add an extra element to the end of the list, essentially a
          * NULL terminator
          */
         *buffer_size_needed =
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index 8c128dea3252..008058acdd39 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -75,10 +75,11 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
         u8 *aml_start;
         acpi_size list_size_needed = 0;
         u32 aml_buffer_length;
+        void *resource;
 
-        ACPI_FUNCTION_TRACE("rs_create_resource_list");
+        ACPI_FUNCTION_TRACE(rs_create_resource_list);
 
-        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_buffer = %p\n", aml_buffer));
+        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlBuffer = %p\n", aml_buffer));
 
         /* Params already validated, so we don't re-validate here */
 
@@ -92,7 +93,7 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
         status = acpi_rs_get_list_length(aml_start, aml_buffer_length,
                                          &list_size_needed);
 
-        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X list_size_needed=%X\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n",
                           status, (u32) list_size_needed));
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
@@ -107,13 +108,15 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
 
         /* Do the conversion */
 
-        status = acpi_rs_convert_aml_to_resources(aml_start, aml_buffer_length,
-                                                  output_buffer->pointer);
+        resource = output_buffer->pointer;
+        status = acpi_ut_walk_aml_resources(aml_start, aml_buffer_length,
+                                            acpi_rs_convert_aml_to_resources,
+                                            &resource);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
         }
 
-        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "output_buffer %p Length %X\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
                           output_buffer->pointer, (u32) output_buffer->length));
         return_ACPI_STATUS(AE_OK);
 }
@@ -155,7 +158,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
         acpi_status status;
         struct acpi_buffer path_buffer;
 
-        ACPI_FUNCTION_TRACE("rs_create_pci_routing_table");
+        ACPI_FUNCTION_TRACE(rs_create_pci_routing_table);
 
         /* Params already validated, so we don't re-validate here */
 
@@ -167,7 +170,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
                 return_ACPI_STATUS(status);
         }
 
-        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "buffer_size_needed = %X\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "BufferSizeNeeded = %X\n",
                           (u32) buffer_size_needed));
 
         /* Validate/Allocate/Clear caller buffer */
@@ -332,7 +335,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
                 /* Now align the current length */
 
                 user_prt->length =
-                    (u32) ACPI_ROUND_UP_to_64_bITS(user_prt->length);
+                    (u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length);
 
                 /* 4) Fourth subobject: Dereference the PRT.source_index */
 
@@ -341,7 +344,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
                         user_prt->source_index = (u32) obj_desc->integer.value;
                 } else {
                         ACPI_ERROR((AE_INFO,
-                                    "(PRT[%X].source_index) Need Integer, found %s",
+                                    "(PRT[%X].SourceIndex) Need Integer, found %s",
                                     index,
                                     acpi_ut_get_object_type_name(obj_desc)));
                         return_ACPI_STATUS(AE_BAD_DATA);
@@ -352,7 +355,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
                 top_object_list++;
         }
 
-        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "output_buffer %p Length %X\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
                           output_buffer->pointer, (u32) output_buffer->length));
         return_ACPI_STATUS(AE_OK);
 }
@@ -382,9 +385,9 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
         acpi_status status;
         acpi_size aml_size_needed = 0;
 
-        ACPI_FUNCTION_TRACE("rs_create_aml_resources");
+        ACPI_FUNCTION_TRACE(rs_create_aml_resources);
 
-        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "linked_list_buffer = %p\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n",
                           linked_list_buffer));
 
         /*
@@ -395,7 +398,7 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
          */
         status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed);
 
-        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_size_needed=%X, %s\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
                           (u32) aml_size_needed,
                           acpi_format_exception(status)));
         if (ACPI_FAILURE(status)) {
@@ -419,7 +422,7 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
                 return_ACPI_STATUS(status);
         }
 
-        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "output_buffer %p Length %X\n",
+        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
                           output_buffer->pointer, (u32) output_buffer->length));
         return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/resources/rsdump.c b/drivers/acpi/resources/rsdump.c
index e7de061cf883..9c99a723a860 100644
--- a/drivers/acpi/resources/rsdump.c
+++ b/drivers/acpi/resources/rsdump.c
@@ -91,11 +91,11 @@ acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table);
 struct acpi_rsdump_info acpi_rs_dump_irq[6] = {
         {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_irq), "IRQ", NULL},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.triggering), "Triggering",
-         acpi_gbl_HEdecode},
+         acpi_gbl_he_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.polarity), "Polarity",
-         acpi_gbl_LLdecode},
+         acpi_gbl_ll_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing",
-         acpi_gbl_SHRdecode},
+         acpi_gbl_shr_decode},
         {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.interrupt_count),
          "Interrupt Count", NULL},
         {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(irq.interrupts[0]),
@@ -105,11 +105,11 @@ struct acpi_rsdump_info acpi_rs_dump_irq[6] = {
 struct acpi_rsdump_info acpi_rs_dump_dma[6] = {
         {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_dma), "DMA", NULL},
         {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.type), "Speed",
-         acpi_gbl_TYPdecode},
+         acpi_gbl_typ_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(dma.bus_master), "Mastering",
-         acpi_gbl_BMdecode},
+         acpi_gbl_bm_decode},
         {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.transfer), "Transfer Type",
-         acpi_gbl_SIZdecode},
+         acpi_gbl_siz_decode},
         {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(dma.channel_count), "Channel Count",
          NULL},
         {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(dma.channels[0]), "Channel List",
@@ -158,7 +158,7 @@ struct acpi_rsdump_info acpi_rs_dump_vendor[3] = {
 };
 
 struct acpi_rsdump_info acpi_rs_dump_end_tag[1] = {
-        {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "end_tag",
+        {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "EndTag",
          NULL}
 };
 
@@ -166,7 +166,7 @@ struct acpi_rsdump_info acpi_rs_dump_memory24[6] = {
         {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory24),
          "24-Bit Memory Range", NULL},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory24.write_protect),
-         "Write Protect", acpi_gbl_RWdecode},
+         "Write Protect", acpi_gbl_rw_decode},
         {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.minimum), "Address Minimum",
          NULL},
         {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.maximum), "Address Maximum",
@@ -181,7 +181,7 @@ struct acpi_rsdump_info acpi_rs_dump_memory32[6] = {
         {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory32),
          "32-Bit Memory Range", NULL},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory32.write_protect),
-         "Write Protect", acpi_gbl_RWdecode},
+         "Write Protect", acpi_gbl_rw_decode},
         {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.minimum), "Address Minimum",
          NULL},
         {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.maximum), "Address Maximum",
@@ -196,7 +196,7 @@ struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[4] = {
         {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_memory32),
          "32-Bit Fixed Memory Range", NULL},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(fixed_memory32.write_protect),
-         "Write Protect", acpi_gbl_RWdecode},
+         "Write Protect", acpi_gbl_rw_decode},
         {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address), "Address",
          NULL},
         {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address_length),
@@ -278,11 +278,11 @@ struct acpi_rsdump_info acpi_rs_dump_ext_irq[8] = {
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.producer_consumer),
          "Type", acpi_gbl_consume_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.triggering),
-         "Triggering", acpi_gbl_HEdecode},
+         "Triggering", acpi_gbl_he_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.polarity), "Polarity",
-         acpi_gbl_LLdecode},
+         acpi_gbl_ll_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing",
-         acpi_gbl_SHRdecode},
+         acpi_gbl_shr_decode},
         {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(extended_irq.resource_source), NULL,
          NULL},
         {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(extended_irq.interrupt_count),
@@ -314,7 +314,7 @@ static struct acpi_rsdump_info acpi_rs_dump_general_flags[5] = {
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.producer_consumer),
          "Consumer/Producer", acpi_gbl_consume_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.decode), "Address Decode",
-         acpi_gbl_DECdecode},
+         acpi_gbl_dec_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.min_address_fixed),
          "Min Relocatability", acpi_gbl_min_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.max_address_fixed),
@@ -325,24 +325,24 @@ static struct acpi_rsdump_info acpi_rs_dump_memory_flags[5] = {
         {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory_flags),
          "Resource Type", (void *)"Memory Range"},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.write_protect),
-         "Write Protect", acpi_gbl_RWdecode},
+         "Write Protect", acpi_gbl_rw_decode},
         {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.caching),
-         "Caching", acpi_gbl_MEMdecode},
+         "Caching", acpi_gbl_mem_decode},
         {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.range_type),
-         "Range Type", acpi_gbl_MTPdecode},
+         "Range Type", acpi_gbl_mtp_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.translation),
-         "Translation", acpi_gbl_TTPdecode}
+         "Translation", acpi_gbl_ttp_decode}
 };
 
 static struct acpi_rsdump_info acpi_rs_dump_io_flags[4] = {
         {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io_flags),
          "Resource Type", (void *)"I/O Range"},
         {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.io.range_type),
-         "Range Type", acpi_gbl_RNGdecode},
+         "Range Type", acpi_gbl_rng_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation),
-         "Translation", acpi_gbl_TTPdecode},
+         "Translation", acpi_gbl_ttp_decode},
         {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation_type),
-         "Translation Type", acpi_gbl_TRSdecode}
+         "Translation Type", acpi_gbl_trs_decode}
 };
 
 /*
diff --git a/drivers/acpi/resources/rsinfo.c b/drivers/acpi/resources/rsinfo.c
index d9ae64b77bd9..9e7ae2f8a1d3 100644
--- a/drivers/acpi/resources/rsinfo.c
+++ b/drivers/acpi/resources/rsinfo.c
@@ -141,6 +141,7 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = {
         acpi_rs_dump_generic_reg,       /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
 };
 #endif
+
 #endif  /* ACPI_FUTURE_USAGE */
 /*
  * Base sizes for external AML resource descriptors, indexed by internal type.
diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c
index 1434e786477e..29423ce030ca 100644
--- a/drivers/acpi/resources/rslist.c
+++ b/drivers/acpi/resources/rslist.c
@@ -51,76 +51,62 @@ ACPI_MODULE_NAME("rslist")
  *
  * FUNCTION:    acpi_rs_convert_aml_to_resources
  *
- * PARAMETERS:  Aml                 - Pointer to the resource byte stream
- *              aml_length          - Length of Aml
- *              output_buffer       - Pointer to the buffer that will
- *                                    contain the output structures
+ * PARAMETERS:  acpi_walk_aml_callback
+ *              resource_ptr            - Pointer to the buffer that will
+ *                                        contain the output structures
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Takes the resource byte stream and parses it, creating a
- *              linked list of resources in the caller's output buffer
+ * DESCRIPTION: Convert an AML resource to an internal representation of the
+ *              resource that is aligned and easier to access.
  *
  ******************************************************************************/
 acpi_status
-acpi_rs_convert_aml_to_resources(u8 * aml, u32 aml_length, u8 * output_buffer)
+acpi_rs_convert_aml_to_resources(u8 * aml,
+                                 u32 length,
+                                 u32 offset, u8 resource_index, void **context)
 {
-        struct acpi_resource *resource = (void *)output_buffer;
+        struct acpi_resource **resource_ptr =
+            ACPI_CAST_INDIRECT_PTR(struct acpi_resource, context);
+        struct acpi_resource *resource;
         acpi_status status;
-        u8 resource_index;
-        u8 *end_aml;
-
-        ACPI_FUNCTION_TRACE("rs_convert_aml_to_resources");
-
-        end_aml = aml + aml_length;
-
-        /* Loop until end-of-buffer or an end_tag is found */
-
-        while (aml < end_aml) {
-                /* Validate the Resource Type and Resource Length */
-
-                status = acpi_ut_validate_resource(aml, &resource_index);
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
 
-                /* Convert the AML byte stream resource to a local resource struct */
-
-                status =
-                    acpi_rs_convert_aml_to_resource(resource,
-                                                    ACPI_CAST_PTR(union
-                                                                  aml_resource,
-                                                                  aml),
-                                                    acpi_gbl_get_resource_dispatch
-                                                    [resource_index]);
-                if (ACPI_FAILURE(status)) {
-                        ACPI_EXCEPTION((AE_INFO, status,
-                                        "Could not convert AML resource (Type %X)",
-                                        *aml));
-                        return_ACPI_STATUS(status);
-                }
+        ACPI_FUNCTION_TRACE(rs_convert_aml_to_resources);
 
-                /* Normal exit on completion of an end_tag resource descriptor */
-
-                if (acpi_ut_get_resource_type(aml) ==
-                    ACPI_RESOURCE_NAME_END_TAG) {
-                        return_ACPI_STATUS(AE_OK);
-                }
-
-                /* Point to the next input AML resource */
-
-                aml += acpi_ut_get_descriptor_length(aml);
-
-                /* Point to the next structure in the output buffer */
+        /*
+         * Check that the input buffer and all subsequent pointers into it
+         * are aligned on a native word boundary. Most important on IA64
+         */
+        resource = *resource_ptr;
+        if (ACPI_IS_MISALIGNED(resource)) {
+                ACPI_WARNING((AE_INFO,
+                              "Misaligned resource pointer %p", resource));
+        }
 
-                resource =
-                    ACPI_ADD_PTR(struct acpi_resource, resource,
-                                 resource->length);
+        /* Convert the AML byte stream resource to a local resource struct */
+
+        status =
+            acpi_rs_convert_aml_to_resource(resource,
+                                            ACPI_CAST_PTR(union aml_resource,
+                                                          aml),
+                                            acpi_gbl_get_resource_dispatch
+                                            [resource_index]);
+        if (ACPI_FAILURE(status)) {
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "Could not convert AML resource (Type %X)",
+                                *aml));
+                return_ACPI_STATUS(status);
         }
 
-        /* Did not find an end_tag resource descriptor */
+        ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
+                          "Type %.2X, AmlLength %.2X InternalLength %.2X\n",
+                          acpi_ut_get_resource_type(aml), length,
+                          resource->length));
 
-        return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+        /* Point to the next structure in the output buffer */
+
+        *resource_ptr = ACPI_ADD_PTR(void, resource, resource->length);
+        return_ACPI_STATUS(AE_OK);
 }
 
 /*******************************************************************************
@@ -150,11 +136,12 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
         u8 *end_aml = output_buffer + aml_size_needed;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("rs_convert_resources_to_aml");
+        ACPI_FUNCTION_TRACE(rs_convert_resources_to_aml);
 
         /* Walk the resource descriptor list, convert each descriptor */
 
         while (aml < end_aml) {
+
                 /* Validate the (internal) Resource Type */
 
                 if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
@@ -191,6 +178,7 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
                 /* Check for end-of-list, normal exit */
 
                 if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) {
+
                         /* An End Tag indicates the end of the input Resource Template */
 
                         return_ACPI_STATUS(AE_OK);
diff --git a/drivers/acpi/resources/rsmisc.c b/drivers/acpi/resources/rsmisc.c
index ed866cf1c6d2..faf6e106b785 100644
--- a/drivers/acpi/resources/rsmisc.c
+++ b/drivers/acpi/resources/rsmisc.c
@@ -81,9 +81,10 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
         u16 item_count = 0;
         u16 temp16 = 0;
 
-        ACPI_FUNCTION_TRACE("rs_get_resource");
+        ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
 
         if (((acpi_native_uint) resource) & 0x3) {
+
                 /* Each internal resource struct is expected to be 32-bit aligned */
 
                 ACPI_WARNING((AE_INFO,
@@ -295,9 +296,11 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 
       exit:
         if (!flags_mode) {
-                /* Round the resource struct length up to the next 32-bit boundary */
 
-                resource->length = ACPI_ROUND_UP_to_32_bITS(resource->length);
+                /* Round the resource struct length up to the next boundary (32 or 64) */
+
+                resource->length =
+                    (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
         }
         return_ACPI_STATUS(AE_OK);
 }
@@ -329,7 +332,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
         u16 temp16 = 0;
         u16 item_count = 0;
 
-        ACPI_FUNCTION_TRACE("rs_convert_resource_to_aml");
+        ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);
 
         /*
          * First table entry must be ACPI_RSC_INITxxx and must contain the
@@ -535,6 +538,7 @@ if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
 
 resource->data.extended_irq.interrupt_count = temp8;
 if (temp8 < 1) {
+
         /* Must have at least one IRQ */
 
         return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c
index 25b5aedd6612..a9cbee8e8b44 100644
--- a/drivers/acpi/resources/rsutils.c
+++ b/drivers/acpi/resources/rsutils.c
@@ -205,6 +205,7 @@ acpi_rs_set_resource_length(acpi_rsdesc_size total_length,
         /* Length is stored differently for large and small descriptors */
 
         if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) {
+
                 /* Large descriptor -- bytes 1-2 contain the 16-bit length */
 
                 ACPI_MOVE_16_TO_16(&aml->large_header.resource_length,
@@ -298,7 +299,8 @@ static u16 acpi_rs_strcpy(char *destination, char *source)
  *              string_ptr          - (optional) where to store the actual
  *                                    resource_source string
  *
- * RETURN:      Length of the string plus NULL terminator, rounded up to 32 bit
+ * RETURN:      Length of the string plus NULL terminator, rounded up to native
+ *              word boundary
  *
  * DESCRIPTION: Copy the optional resource_source data from a raw AML descriptor
  *              to an internal resource descriptor
@@ -328,6 +330,7 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length,
          * we add 1 to the minimum length.
          */
         if (total_length > (acpi_rsdesc_size) (minimum_length + 1)) {
+
                 /* Get the resource_source_index */
 
                 resource_source->index = aml_resource_source[0];
@@ -344,23 +347,26 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length,
                 }
 
                 /*
-                 * In order for the struct_size to fall on a 32-bit boundary, calculate
-                 * the length of the string (+1 for the NULL terminator) and expand the
-                 * struct_size to the next 32-bit boundary.
+                 * In order for the Resource length to be a multiple of the native
+                 * word, calculate the length of the string (+1 for NULL terminator)
+                 * and expand to the next word multiple.
                  *
                  * Zero the entire area of the buffer.
                  */
                 total_length =
-                    ACPI_ROUND_UP_to_32_bITS(ACPI_STRLEN
-                                             ((char *)&aml_resource_source[1]) +
-                                             1);
+                    (u32)
+                    ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
+                    1;
+                total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
+
                 ACPI_MEMSET(resource_source->string_ptr, 0, total_length);
 
                 /* Copy the resource_source string to the destination */
 
                 resource_source->string_length =
                     acpi_rs_strcpy(resource_source->string_ptr,
-                                   (char *)&aml_resource_source[1]);
+                                   ACPI_CAST_PTR(char,
+                                                 &aml_resource_source[1]));
 
                 return ((acpi_rs_length) total_length);
         }
@@ -405,6 +411,7 @@ acpi_rs_set_resource_source(union aml_resource * aml,
         /* Non-zero string length indicates presence of a resource_source */
 
         if (resource_source->string_length) {
+
                 /* Point to the end of the AML descriptor */
 
                 aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length);
@@ -415,7 +422,7 @@ acpi_rs_set_resource_source(union aml_resource * aml,
 
                 /* Copy the resource_source string */
 
-                ACPI_STRCPY((char *)&aml_resource_source[1],
+                ACPI_STRCPY(ACPI_CAST_PTR(char, &aml_resource_source[1]),
                             resource_source->string_ptr);
 
                 /*
@@ -435,9 +442,9 @@ acpi_rs_set_resource_source(union aml_resource * aml,
  *
  * FUNCTION:    acpi_rs_get_prt_method_data
  *
- * PARAMETERS:  Handle          - a handle to the containing object
- *              ret_buffer      - a pointer to a buffer structure for the
- *                                  results
+ * PARAMETERS:  Node            - Device node
+ *              ret_buffer      - Pointer to a buffer structure for the
+ *                                results
  *
  * RETURN:      Status
  *
@@ -450,18 +457,19 @@ acpi_rs_set_resource_source(union aml_resource * aml,
  ******************************************************************************/
 
 acpi_status
-acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer)
+acpi_rs_get_prt_method_data(struct acpi_namespace_node * node,
+                            struct acpi_buffer * ret_buffer)
 {
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("rs_get_prt_method_data");
+        ACPI_FUNCTION_TRACE(rs_get_prt_method_data);
 
         /* Parameters guaranteed valid by caller */
 
         /* Execute the method, no parameters */
 
-        status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRT,
+        status = acpi_ut_evaluate_object(node, METHOD_NAME__PRT,
                                          ACPI_BTYPE_PACKAGE, &obj_desc);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
@@ -483,9 +491,9 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer)
  *
  * FUNCTION:    acpi_rs_get_crs_method_data
  *
- * PARAMETERS:  Handle          - a handle to the containing object
- *              ret_buffer      - a pointer to a buffer structure for the
- *                                  results
+ * PARAMETERS:  Node            - Device node
+ *              ret_buffer      - Pointer to a buffer structure for the
+ *                                results
  *
  * RETURN:      Status
  *
@@ -498,18 +506,19 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer)
  ******************************************************************************/
 
 acpi_status
-acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
+acpi_rs_get_crs_method_data(struct acpi_namespace_node *node,
+                            struct acpi_buffer *ret_buffer)
 {
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("rs_get_crs_method_data");
+        ACPI_FUNCTION_TRACE(rs_get_crs_method_data);
 
         /* Parameters guaranteed valid by caller */
 
         /* Execute the method, no parameters */
 
-        status = acpi_ut_evaluate_object(handle, METHOD_NAME__CRS,
+        status = acpi_ut_evaluate_object(node, METHOD_NAME__CRS,
                                          ACPI_BTYPE_BUFFER, &obj_desc);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
@@ -522,7 +531,7 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
          */
         status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
 
-        /* on exit, we must delete the object returned by evaluate_object */
+        /* On exit, we must delete the object returned by evaluate_object */
 
         acpi_ut_remove_reference(obj_desc);
         return_ACPI_STATUS(status);
@@ -532,9 +541,9 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
  *
  * FUNCTION:    acpi_rs_get_prs_method_data
  *
- * PARAMETERS:  Handle          - a handle to the containing object
- *              ret_buffer      - a pointer to a buffer structure for the
- *                                  results
+ * PARAMETERS:  Node            - Device node
+ *              ret_buffer      - Pointer to a buffer structure for the
+ *                                results
  *
  * RETURN:      Status
  *
@@ -548,18 +557,19 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
 
 #ifdef ACPI_FUTURE_USAGE
 acpi_status
-acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
+acpi_rs_get_prs_method_data(struct acpi_namespace_node *node,
+                            struct acpi_buffer *ret_buffer)
 {
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("rs_get_prs_method_data");
+        ACPI_FUNCTION_TRACE(rs_get_prs_method_data);
 
         /* Parameters guaranteed valid by caller */
 
         /* Execute the method, no parameters */
 
-        status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRS,
+        status = acpi_ut_evaluate_object(node, METHOD_NAME__PRS,
                                          ACPI_BTYPE_BUFFER, &obj_desc);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
@@ -572,7 +582,7 @@ acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
          */
         status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
 
-        /* on exit, we must delete the object returned by evaluate_object */
+        /* On exit, we must delete the object returned by evaluate_object */
 
         acpi_ut_remove_reference(obj_desc);
         return_ACPI_STATUS(status);
@@ -583,10 +593,10 @@ acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
  *
  * FUNCTION:    acpi_rs_get_method_data
  *
- * PARAMETERS:  Handle          - a handle to the containing object
+ * PARAMETERS:  Handle          - Handle to the containing object
  *              Path            - Path to method, relative to Handle
- *              ret_buffer      - a pointer to a buffer structure for the
- *                                  results
+ *              ret_buffer      - Pointer to a buffer structure for the
+ *                                results
  *
  * RETURN:      Status
  *
@@ -605,7 +615,7 @@ acpi_rs_get_method_data(acpi_handle handle,
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("rs_get_method_data");
+        ACPI_FUNCTION_TRACE(rs_get_method_data);
 
         /* Parameters guaranteed valid by caller */
 
@@ -634,9 +644,9 @@ acpi_rs_get_method_data(acpi_handle handle,
  *
  * FUNCTION:    acpi_rs_set_srs_method_data
  *
- * PARAMETERS:  Handle          - a handle to the containing object
- *              in_buffer       - a pointer to a buffer structure of the
- *                                  parameter
+ * PARAMETERS:  Node            - Device node
+ *              in_buffer       - Pointer to a buffer structure of the
+ *                                parameter
  *
  * RETURN:      Status
  *
@@ -646,23 +656,37 @@ acpi_rs_get_method_data(acpi_handle handle,
  *              If the function fails an appropriate status will be returned
  *              and the contents of the callers buffer is undefined.
  *
+ * Note: Parameters guaranteed valid by caller
+ *
  ******************************************************************************/
 
 acpi_status
-acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer)
+acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
+                            struct acpi_buffer *in_buffer)
 {
-        struct acpi_parameter_info info;
-        union acpi_operand_object *params[2];
+        struct acpi_evaluate_info *info;
+        union acpi_operand_object *args[2];
         acpi_status status;
         struct acpi_buffer buffer;
 
-        ACPI_FUNCTION_TRACE("rs_set_srs_method_data");
+        ACPI_FUNCTION_TRACE(rs_set_srs_method_data);
 
-        /* Parameters guaranteed valid by caller */
+        /* Allocate and initialize the evaluation information block */
+
+        info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+        if (!info) {
+                return_ACPI_STATUS(AE_NO_MEMORY);
+        }
+
+        info->prefix_node = node;
+        info->pathname = METHOD_NAME__SRS;
+        info->parameters = args;
+        info->parameter_type = ACPI_PARAM_ARGS;
+        info->flags = ACPI_IGNORE_RETURN_VALUE;
 
         /*
          * The in_buffer parameter will point to a linked list of
-         * resource parameters.  It needs to be formatted into a
+         * resource parameters. It needs to be formatted into a
          * byte stream to be sent in as an input parameter to _SRS
          *
          * Convert the linked list into a byte stream
@@ -670,41 +694,36 @@ acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer)
         buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
         status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer);
         if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
+                goto cleanup;
         }
 
-        /* Init the param object */
+        /* Create and initialize the method parameter object */
 
-        params[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
-        if (!params[0]) {
-                acpi_os_free(buffer.pointer);
-                return_ACPI_STATUS(AE_NO_MEMORY);
+        args[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
+        if (!args[0]) {
+                /*
+                 * Must free the buffer allocated above (otherwise it is freed
+                 * later)
+                 */
+                ACPI_FREE(buffer.pointer);
+                status = AE_NO_MEMORY;
+                goto cleanup;
         }
 
-        /* Set up the parameter object */
-
-        params[0]->buffer.length = (u32) buffer.length;
-        params[0]->buffer.pointer = buffer.pointer;
-        params[0]->common.flags = AOPOBJ_DATA_VALID;
-        params[1] = NULL;
-
-        info.node = handle;
-        info.parameters = params;
-        info.parameter_type = ACPI_PARAM_ARGS;
+        args[0]->buffer.length = (u32) buffer.length;
+        args[0]->buffer.pointer = buffer.pointer;
+        args[0]->common.flags = AOPOBJ_DATA_VALID;
+        args[1] = NULL;
 
-        /* Execute the method, no return value */
+        /* Execute the method, no return value is expected */
 
-        status = acpi_ns_evaluate_relative(METHOD_NAME__SRS, &info);
-        if (ACPI_SUCCESS(status)) {
-                /* Delete any return object (especially if implicit_return is enabled) */
+        status = acpi_ns_evaluate(info);
 
-                if (info.return_object) {
-                        acpi_ut_remove_reference(info.return_object);
-                }
-        }
+        /* Clean up and return the status from acpi_ns_evaluate */
 
-        /* Clean up and return the status from acpi_ns_evaluate_relative */
+        acpi_ut_remove_reference(args[0]);
 
-        acpi_ut_remove_reference(params[0]);
+      cleanup:
+        ACPI_FREE(info);
         return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/resources/rsxface.c b/drivers/acpi/resources/rsxface.c
index 88b67077aeeb..1999e2ab7daa 100644
--- a/drivers/acpi/resources/rsxface.c
+++ b/drivers/acpi/resources/rsxface.c
@@ -41,10 +41,9 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acresrc.h>
+#include <acpi/acnamesp.h>
 
 #define _COMPONENT          ACPI_RESOURCES
 ACPI_MODULE_NAME("rsxface")
@@ -68,312 +67,262 @@ ACPI_MODULE_NAME("rsxface")
 static acpi_status
 acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context);
 
+static acpi_status
+acpi_rs_validate_parameters(acpi_handle device_handle,
+                            struct acpi_buffer *buffer,
+                            struct acpi_namespace_node **return_node);
+
 /*******************************************************************************
  *
- * FUNCTION:    acpi_get_irq_routing_table
+ * FUNCTION:    acpi_rs_validate_parameters
  *
- * PARAMETERS:  device_handle   - a handle to the Bus device we are querying
- *              ret_buffer      - a pointer to a buffer to receive the
- *                                current resources for the device
+ * PARAMETERS:  device_handle   - Handle to a device
+ *              Buffer          - Pointer to a data buffer
+ *              return_node     - Pointer to where the device node is returned
  *
  * RETURN:      Status
  *
- * DESCRIPTION: This function is called to get the IRQ routing table for a
- *              specific bus.  The caller must first acquire a handle for the
- *              desired bus.  The routine table is placed in the buffer pointed
- *              to by the ret_buffer variable parameter.
- *
- *              If the function fails an appropriate status will be returned
- *              and the value of ret_buffer is undefined.
- *
- *              This function attempts to execute the _PRT method contained in
- *              the object indicated by the passed device_handle.
+ * DESCRIPTION: Common parameter validation for resource interfaces
  *
  ******************************************************************************/
 
-acpi_status
-acpi_get_irq_routing_table(acpi_handle device_handle,
-                           struct acpi_buffer *ret_buffer)
+static acpi_status
+acpi_rs_validate_parameters(acpi_handle device_handle,
+                            struct acpi_buffer *buffer,
+                            struct acpi_namespace_node **return_node)
 {
         acpi_status status;
+        struct acpi_namespace_node *node;
 
-        ACPI_FUNCTION_TRACE("acpi_get_irq_routing_table ");
+        ACPI_FUNCTION_TRACE(rs_validate_parameters);
 
         /*
-         * Must have a valid handle and buffer, So we have to have a handle
-         * and a return buffer structure, and if there is a non-zero buffer length
-         * we also need a valid pointer in the buffer. If it's a zero buffer length,
-         * we'll be returning the needed buffer size, so keep going.
+         * Must have a valid handle to an ACPI device
          */
         if (!device_handle) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        status = acpi_ut_validate_buffer(ret_buffer);
+        node = acpi_ns_map_handle_to_node(device_handle);
+        if (!node) {
+                return_ACPI_STATUS(AE_BAD_PARAMETER);
+        }
+
+        if (node->type != ACPI_TYPE_DEVICE) {
+                return_ACPI_STATUS(AE_TYPE);
+        }
+
+        /*
+         * Validate the user buffer object
+         *
+         * if there is a non-zero buffer length we also need a valid pointer in
+         * the buffer. If it's a zero buffer length, we'll be returning the
+         * needed buffer size (later), so keep going.
+         */
+        status = acpi_ut_validate_buffer(buffer);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
         }
 
-        status = acpi_rs_get_prt_method_data(device_handle, ret_buffer);
-        return_ACPI_STATUS(status);
+        *return_node = node;
+        return_ACPI_STATUS(AE_OK);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_get_current_resources
+ * FUNCTION:    acpi_get_irq_routing_table
  *
- * PARAMETERS:  device_handle   - a handle to the device object for the
- *                                device we are querying
- *              ret_buffer      - a pointer to a buffer to receive the
+ * PARAMETERS:  device_handle   - Handle to the Bus device we are querying
+ *              ret_buffer      - Pointer to a buffer to receive the
  *                                current resources for the device
  *
  * RETURN:      Status
  *
- * DESCRIPTION: This function is called to get the current resources for a
- *              specific device.  The caller must first acquire a handle for
- *              the desired device.  The resource data is placed in the buffer
- *              pointed to by the ret_buffer variable parameter.
+ * DESCRIPTION: This function is called to get the IRQ routing table for a
+ *              specific bus. The caller must first acquire a handle for the
+ *              desired bus. The routine table is placed in the buffer pointed
+ *              to by the ret_buffer variable parameter.
  *
  *              If the function fails an appropriate status will be returned
  *              and the value of ret_buffer is undefined.
  *
- *              This function attempts to execute the _CRS method contained in
+ *              This function attempts to execute the _PRT method contained in
  *              the object indicated by the passed device_handle.
  *
  ******************************************************************************/
 
 acpi_status
-acpi_get_current_resources(acpi_handle device_handle,
+acpi_get_irq_routing_table(acpi_handle device_handle,
                            struct acpi_buffer *ret_buffer)
 {
         acpi_status status;
+        struct acpi_namespace_node *node;
 
-        ACPI_FUNCTION_TRACE("acpi_get_current_resources");
+        ACPI_FUNCTION_TRACE(acpi_get_irq_routing_table);
 
-        /*
-         * Must have a valid handle and buffer, So we have to have a handle
-         * and a return buffer structure, and if there is a non-zero buffer length
-         * we also need a valid pointer in the buffer. If it's a zero buffer length,
-         * we'll be returning the needed buffer size, so keep going.
-         */
-        if (!device_handle) {
-                return_ACPI_STATUS(AE_BAD_PARAMETER);
-        }
+        /* Validate parameters then dispatch to internal routine */
 
-        status = acpi_ut_validate_buffer(ret_buffer);
+        status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
         }
 
-        status = acpi_rs_get_crs_method_data(device_handle, ret_buffer);
+        status = acpi_rs_get_prt_method_data(node, ret_buffer);
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_get_current_resources);
+ACPI_EXPORT_SYMBOL(acpi_get_irq_routing_table)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_get_possible_resources
+ * FUNCTION:    acpi_get_current_resources
  *
- * PARAMETERS:  device_handle   - a handle to the device object for the
+ * PARAMETERS:  device_handle   - Handle to the device object for the
  *                                device we are querying
- *              ret_buffer      - a pointer to a buffer to receive the
- *                                resources for the device
+ *              ret_buffer      - Pointer to a buffer to receive the
+ *                                current resources for the device
  *
  * RETURN:      Status
  *
- * DESCRIPTION: This function is called to get a list of the possible resources
- *              for a specific device.  The caller must first acquire a handle
- *              for the desired device.  The resource data is placed in the
- *              buffer pointed to by the ret_buffer variable.
+ * DESCRIPTION: This function is called to get the current resources for a
+ *              specific device. The caller must first acquire a handle for
+ *              the desired device. The resource data is placed in the buffer
+ *              pointed to by the ret_buffer variable parameter.
  *
  *              If the function fails an appropriate status will be returned
  *              and the value of ret_buffer is undefined.
  *
+ *              This function attempts to execute the _CRS method contained in
+ *              the object indicated by the passed device_handle.
+ *
  ******************************************************************************/
-
-#ifdef ACPI_FUTURE_USAGE
 acpi_status
-acpi_get_possible_resources(acpi_handle device_handle,
-                            struct acpi_buffer *ret_buffer)
+acpi_get_current_resources(acpi_handle device_handle,
+                           struct acpi_buffer *ret_buffer)
 {
         acpi_status status;
+        struct acpi_namespace_node *node;
 
-        ACPI_FUNCTION_TRACE("acpi_get_possible_resources");
+        ACPI_FUNCTION_TRACE(acpi_get_current_resources);
 
-        /*
-         * Must have a valid handle and buffer, So we have to have a handle
-         * and a return buffer structure, and if there is a non-zero buffer length
-         * we also need a valid pointer in the buffer. If it's a zero buffer length,
-         * we'll be returning the needed buffer size, so keep going.
-         */
-        if (!device_handle) {
-                return_ACPI_STATUS(AE_BAD_PARAMETER);
-        }
+        /* Validate parameters then dispatch to internal routine */
 
-        status = acpi_ut_validate_buffer(ret_buffer);
+        status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
         }
 
-        status = acpi_rs_get_prs_method_data(device_handle, ret_buffer);
+        status = acpi_rs_get_crs_method_data(node, ret_buffer);
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_get_possible_resources);
-#endif                          /*  ACPI_FUTURE_USAGE  */
+ACPI_EXPORT_SYMBOL(acpi_get_current_resources)
 
+#ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
- * FUNCTION:    acpi_walk_resources
+ * FUNCTION:    acpi_get_possible_resources
  *
  * PARAMETERS:  device_handle   - Handle to the device object for the
  *                                device we are querying
- *              Name            - Method name of the resources we want
- *                                (METHOD_NAME__CRS or METHOD_NAME__PRS)
- *              user_function   - Called for each resource
- *              Context         - Passed to user_function
+ *              ret_buffer      - Pointer to a buffer to receive the
+ *                                resources for the device
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Retrieves the current or possible resource list for the
- *              specified device.  The user_function is called once for
- *              each resource in the list.
+ * DESCRIPTION: This function is called to get a list of the possible resources
+ *              for a specific device. The caller must first acquire a handle
+ *              for the desired device. The resource data is placed in the
+ *              buffer pointed to by the ret_buffer variable.
+ *
+ *              If the function fails an appropriate status will be returned
+ *              and the value of ret_buffer is undefined.
  *
  ******************************************************************************/
-
 acpi_status
-acpi_walk_resources(acpi_handle device_handle,
-                    char *name,
-                    ACPI_WALK_RESOURCE_CALLBACK user_function, void *context)
+acpi_get_possible_resources(acpi_handle device_handle,
+                            struct acpi_buffer *ret_buffer)
 {
         acpi_status status;
-        struct acpi_buffer buffer;
-        struct acpi_resource *resource;
-        struct acpi_resource *resource_end;
-
-        ACPI_FUNCTION_TRACE("acpi_walk_resources");
-
-        /* Parameter validation */
+        struct acpi_namespace_node *node;
 
-        if (!device_handle || !user_function || !name ||
-            (ACPI_STRNCMP(name, METHOD_NAME__CRS, sizeof(METHOD_NAME__CRS)) &&
-             ACPI_STRNCMP(name, METHOD_NAME__PRS, sizeof(METHOD_NAME__PRS)))) {
-                return_ACPI_STATUS(AE_BAD_PARAMETER);
-        }
+        ACPI_FUNCTION_TRACE(acpi_get_possible_resources);
 
-        /* Get the _CRS or _PRS resource list */
+        /* Validate parameters then dispatch to internal routine */
 
-        buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
-        status = acpi_rs_get_method_data(device_handle, name, &buffer);
+        status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
         }
 
-        /* Buffer now contains the resource list */
-
-        resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer);
-        resource_end =
-            ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length);
-
-        /* Walk the resource list until the end_tag is found (or buffer end) */
-
-        while (resource < resource_end) {
-                /* Sanity check the resource */
-
-                if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
-                        status = AE_AML_INVALID_RESOURCE_TYPE;
-                        break;
-                }
-
-                /* Invoke the user function, abort on any error returned */
-
-                status = user_function(resource, context);
-                if (ACPI_FAILURE(status)) {
-                        if (status == AE_CTRL_TERMINATE) {
-                                /* This is an OK termination by the user function */
-
-                                status = AE_OK;
-                        }
-                        break;
-                }
-
-                /* end_tag indicates end-of-list */
-
-                if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) {
-                        break;
-                }
-
-                /* Get the next resource descriptor */
-
-                resource =
-                    ACPI_ADD_PTR(struct acpi_resource, resource,
-                                 resource->length);
-        }
-
-        ACPI_MEM_FREE(buffer.pointer);
+        status = acpi_rs_get_prs_method_data(node, ret_buffer);
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_walk_resources);
+ACPI_EXPORT_SYMBOL(acpi_get_possible_resources)
+#endif                          /*  ACPI_FUTURE_USAGE  */
 
 /*******************************************************************************
  *
  * FUNCTION:    acpi_set_current_resources
  *
- * PARAMETERS:  device_handle   - a handle to the device object for the
- *                                device we are changing the resources of
- *              in_buffer       - a pointer to a buffer containing the
+ * PARAMETERS:  device_handle   - Handle to the device object for the
+ *                                device we are setting resources
+ *              in_buffer       - Pointer to a buffer containing the
  *                                resources to be set for the device
  *
  * RETURN:      Status
  *
  * DESCRIPTION: This function is called to set the current resources for a
- *              specific device.  The caller must first acquire a handle for
- *              the desired device.  The resource data is passed to the routine
+ *              specific device. The caller must first acquire a handle for
+ *              the desired device. The resource data is passed to the routine
  *              the buffer pointed to by the in_buffer variable.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_set_current_resources(acpi_handle device_handle,
                            struct acpi_buffer *in_buffer)
 {
         acpi_status status;
+        struct acpi_namespace_node *node;
 
-        ACPI_FUNCTION_TRACE("acpi_set_current_resources");
+        ACPI_FUNCTION_TRACE(acpi_set_current_resources);
 
-        /* Must have a valid handle and buffer */
+        /* Validate the buffer, don't allow zero length */
 
-        if ((!device_handle) ||
-            (!in_buffer) || (!in_buffer->pointer) || (!in_buffer->length)) {
+        if ((!in_buffer) || (!in_buffer->pointer) || (!in_buffer->length)) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        status = acpi_rs_set_srs_method_data(device_handle, in_buffer);
+        /* Validate parameters then dispatch to internal routine */
+
+        status = acpi_rs_validate_parameters(device_handle, in_buffer, &node);
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
+        }
+
+        status = acpi_rs_set_srs_method_data(node, in_buffer);
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_set_current_resources);
+ACPI_EXPORT_SYMBOL(acpi_set_current_resources)
 
 /******************************************************************************
  *
  * FUNCTION:    acpi_resource_to_address64
  *
- * PARAMETERS:  Resource                - Pointer to a resource
- *              Out                     - Pointer to the users's return
- *                                        buffer (a struct
- *                                        struct acpi_resource_address64)
+ * PARAMETERS:  Resource        - Pointer to a resource
+ *              Out             - Pointer to the users's return buffer
+ *                                (a struct acpi_resource_address64)
  *
  * RETURN:      Status
  *
  * DESCRIPTION: If the resource is an address16, address32, or address64,
- *              copy it to the address64 return buffer.  This saves the
+ *              copy it to the address64 return buffer. This saves the
  *              caller from having to duplicate code for different-sized
  *              addresses.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_resource_to_address64(struct acpi_resource *resource,
                            struct acpi_resource_address64 *out)
@@ -415,18 +364,18 @@ acpi_resource_to_address64(struct acpi_resource *resource,
         return (AE_OK);
 }
 
-EXPORT_SYMBOL(acpi_resource_to_address64);
+ACPI_EXPORT_SYMBOL(acpi_resource_to_address64)
 
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_vendor_resource
  *
- * PARAMETERS:  device_handle       - Handle for the parent device object
- *              Name                - Method name for the parent resource
- *                                    (METHOD_NAME__CRS or METHOD_NAME__PRS)
- *              Uuid                - Pointer to the UUID to be matched.
- *                                    includes both subtype and 16-byte UUID
- *              ret_buffer          - Where the vendor resource is returned
+ * PARAMETERS:  device_handle   - Handle for the parent device object
+ *              Name            - Method name for the parent resource
+ *                                (METHOD_NAME__CRS or METHOD_NAME__PRS)
+ *              Uuid            - Pointer to the UUID to be matched.
+ *                                includes both subtype and 16-byte UUID
+ *              ret_buffer      - Where the vendor resource is returned
  *
  * RETURN:      Status
  *
@@ -435,7 +384,6 @@ EXPORT_SYMBOL(acpi_resource_to_address64);
  *              UUID subtype. Returns a struct acpi_resource of type Vendor.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_get_vendor_resource(acpi_handle device_handle,
                          char *name,
@@ -467,18 +415,19 @@ acpi_get_vendor_resource(acpi_handle device_handle,
         return (info.status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_get_vendor_resource)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_rs_match_vendor_resource
  *
- * PARAMETERS:  ACPI_WALK_RESOURCE_CALLBACK
+ * PARAMETERS:  acpi_walk_resource_callback
  *
  * RETURN:      Status
  *
  * DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID
  *
  ******************************************************************************/
-
 static acpi_status
 acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
 {
@@ -526,3 +475,101 @@ acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
         info->status = AE_OK;
         return (AE_CTRL_TERMINATE);
 }
+
+ACPI_EXPORT_SYMBOL(acpi_rs_match_vendor_resource)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_walk_resources
+ *
+ * PARAMETERS:  device_handle   - Handle to the device object for the
+ *                                device we are querying
+ *              Name            - Method name of the resources we want
+ *                                (METHOD_NAME__CRS or METHOD_NAME__PRS)
+ *              user_function   - Called for each resource
+ *              Context         - Passed to user_function
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Retrieves the current or possible resource list for the
+ *              specified device. The user_function is called once for
+ *              each resource in the list.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_walk_resources(acpi_handle device_handle,
+                    char *name,
+                    acpi_walk_resource_callback user_function, void *context)
+{
+        acpi_status status;
+        struct acpi_buffer buffer;
+        struct acpi_resource *resource;
+        struct acpi_resource *resource_end;
+
+        ACPI_FUNCTION_TRACE(acpi_walk_resources);
+
+        /* Parameter validation */
+
+        if (!device_handle || !user_function || !name ||
+            (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) &&
+             !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS))) {
+                return_ACPI_STATUS(AE_BAD_PARAMETER);
+        }
+
+        /* Get the _CRS or _PRS resource list */
+
+        buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+        status = acpi_rs_get_method_data(device_handle, name, &buffer);
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
+        }
+
+        /* Buffer now contains the resource list */
+
+        resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer);
+        resource_end =
+            ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length);
+
+        /* Walk the resource list until the end_tag is found (or buffer end) */
+
+        while (resource < resource_end) {
+
+                /* Sanity check the resource */
+
+                if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
+                        status = AE_AML_INVALID_RESOURCE_TYPE;
+                        break;
+                }
+
+                /* Invoke the user function, abort on any error returned */
+
+                status = user_function(resource, context);
+                if (ACPI_FAILURE(status)) {
+                        if (status == AE_CTRL_TERMINATE) {
+
+                                /* This is an OK termination by the user function */
+
+                                status = AE_OK;
+                        }
+                        break;
+                }
+
+                /* end_tag indicates end-of-list */
+
+                if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) {
+                        break;
+                }
+
+                /* Get the next resource descriptor */
+
+                resource =
+                    ACPI_ADD_PTR(struct acpi_resource, resource,
+                                 resource->length);
+        }
+
+        ACPI_FREE(buffer.pointer);
+        return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_walk_resources)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index a0ab828b2cc5..f8316a05ede7 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -142,7 +142,7 @@ static void acpi_device_register(struct acpi_device *device,
         create_sysfs_device_files(device);
 }
 
-static int acpi_device_unregister(struct acpi_device *device, int type)
+static void acpi_device_unregister(struct acpi_device *device, int type)
 {
         spin_lock(&acpi_device_lock);
         if (device->parent) {
@@ -158,7 +158,6 @@ static int acpi_device_unregister(struct acpi_device *device, int type)
         acpi_detach_data(device->handle, acpi_bus_data_handler);
         remove_sysfs_device_files(device);
         kobject_unregister(&device->kobj);
-        return 0;
 }
 
 void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context)
@@ -234,12 +233,9 @@ static int acpi_bus_get_power_flags(struct acpi_device *device)
 
 int acpi_match_ids(struct acpi_device *device, char *ids)
 {
-        int error = 0;
-        struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-
         if (device->flags.hardware_id)
                 if (strstr(ids, device->pnp.hardware_id))
-                        goto Done;
+                        return 0;
 
         if (device->flags.compatible_ids) {
                 struct acpi_compatible_id_list *cid_list = device->pnp.cid_list;
@@ -248,15 +244,10 @@ int acpi_match_ids(struct acpi_device *device, char *ids)
                 /* compare multiple _CID entries against driver ids */
                 for (i = 0; i < cid_list->count; i++) {
                         if (strstr(ids, cid_list->id[i].value))
-                                goto Done;
+                                return 0;
                 }
         }
-        error = -ENOENT;
-
-      Done:
-        if (buffer.pointer)
-                acpi_os_free(buffer.pointer);
-        return error;
+        return -ENOENT;
 }
 
 static acpi_status
@@ -441,10 +432,7 @@ acpi_eject_store(struct acpi_device *device, const char *buf, size_t count)
         islockable = device->flags.lockable;
         handle = device->handle;
 
-        if (type == ACPI_TYPE_PROCESSOR)
-                result = acpi_bus_trim(device, 0);
-        else
-                result = acpi_bus_trim(device, 1);
+        result = acpi_bus_trim(device, 1);
 
         if (!result)
                 result = acpi_eject_operation(handle, islockable);
@@ -471,7 +459,6 @@ static int acpi_bus_get_perf_flags(struct acpi_device *device)
    -------------------------------------------------------------------------- */
 
 static LIST_HEAD(acpi_bus_drivers);
-static DECLARE_MUTEX(acpi_bus_drivers_lock);
 
 /**
  * acpi_bus_match - match device IDs to driver's supported IDs
@@ -548,10 +535,9 @@ static int acpi_start_single_object(struct acpi_device *device)
         return_VALUE(result);
 }
 
-static int acpi_driver_attach(struct acpi_driver *drv)
+static void acpi_driver_attach(struct acpi_driver *drv)
 {
         struct list_head *node, *next;
-        int count = 0;
 
         ACPI_FUNCTION_TRACE("acpi_driver_attach");
 
@@ -568,7 +554,6 @@ static int acpi_driver_attach(struct acpi_driver *drv)
                         if (!acpi_bus_driver_init(dev, drv)) {
                                 acpi_start_single_object(dev);
                                 atomic_inc(&drv->references);
-                                count++;
                                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                                   "Found driver [%s] for device [%s]\n",
                                                   drv->name, dev->pnp.bus_id));
@@ -577,10 +562,9 @@ static int acpi_driver_attach(struct acpi_driver *drv)
                 spin_lock(&acpi_device_lock);
         }
         spin_unlock(&acpi_device_lock);
-        return_VALUE(count);
 }
 
-static int acpi_driver_detach(struct acpi_driver *drv)
+static void acpi_driver_detach(struct acpi_driver *drv)
 {
         struct list_head *node, *next;
 
@@ -602,7 +586,6 @@ static int acpi_driver_detach(struct acpi_driver *drv)
                 }
         }
         spin_unlock(&acpi_device_lock);
-        return_VALUE(0);
 }
 
 /**
@@ -610,28 +593,22 @@ static int acpi_driver_detach(struct acpi_driver *drv)
  * @driver: driver being registered
  *
  * Registers a driver with the ACPI bus.  Searches the namespace for all
- * devices that match the driver's criteria and binds.  Returns the
- * number of devices that were claimed by the driver, or a negative
- * error status for failure.
+ * devices that match the driver's criteria and binds.  Returns zero for
+ * success or a negative error status for failure.
  */
 int acpi_bus_register_driver(struct acpi_driver *driver)
 {
-        int count;
-
         ACPI_FUNCTION_TRACE("acpi_bus_register_driver");
 
         if (acpi_disabled)
                 return_VALUE(-ENODEV);
 
-        if (!driver)
-                return_VALUE(-EINVAL);
-
         spin_lock(&acpi_device_lock);
         list_add_tail(&driver->node, &acpi_bus_drivers);
         spin_unlock(&acpi_device_lock);
-        count = acpi_driver_attach(driver);
+        acpi_driver_attach(driver);
 
-        return_VALUE(count);
+        return_VALUE(0);
 }
 
 EXPORT_SYMBOL(acpi_bus_register_driver);
@@ -643,23 +620,16 @@ EXPORT_SYMBOL(acpi_bus_register_driver);
  * Unregisters a driver with the ACPI bus.  Searches the namespace for all
  * devices that match the driver's criteria and unbinds.
  */
-int acpi_bus_unregister_driver(struct acpi_driver *driver)
+void acpi_bus_unregister_driver(struct acpi_driver *driver)
 {
-        int error = 0;
+        acpi_driver_detach(driver);
 
-        ACPI_FUNCTION_TRACE("acpi_bus_unregister_driver");
-
-        if (driver) {
-                acpi_driver_detach(driver);
-
-                if (!atomic_read(&driver->references)) {
-                        spin_lock(&acpi_device_lock);
-                        list_del_init(&driver->node);
-                        spin_unlock(&acpi_device_lock);
-                }
-        } else
-                error = -EINVAL;
-        return_VALUE(error);
+        if (!atomic_read(&driver->references)) {
+                spin_lock(&acpi_device_lock);
+                list_del_init(&driver->node);
+                spin_unlock(&acpi_device_lock);
+        }
+        return;
 }
 
 EXPORT_SYMBOL(acpi_bus_unregister_driver);
@@ -1371,6 +1341,100 @@ static int acpi_bus_scan_fixed(struct acpi_device *root)
         return_VALUE(result);
 }
 
+
+static inline struct acpi_device * to_acpi_dev(struct device * dev)
+{
+        return container_of(dev, struct acpi_device, dev);
+}
+
+
+static int root_suspend(struct acpi_device * acpi_dev, pm_message_t state)
+{
+        struct acpi_device * dev, * next;
+        int result;
+
+        spin_lock(&acpi_device_lock);
+        list_for_each_entry_safe_reverse(dev, next, &acpi_device_list, g_list) {
+                if (dev->driver && dev->driver->ops.suspend) {
+                        spin_unlock(&acpi_device_lock);
+                        result = dev->driver->ops.suspend(dev, 0);
+                        if (result) {
+                                printk(KERN_ERR PREFIX "[%s - %s] Suspend failed: %d\n",
+                                       acpi_device_name(dev),
+                                       acpi_device_bid(dev), result);
+                        }
+                        spin_lock(&acpi_device_lock);
+                }
+        }
+        spin_unlock(&acpi_device_lock);
+        return 0;
+}
+
+
+static int acpi_device_suspend(struct device * dev, pm_message_t state)
+{
+        struct acpi_device * acpi_dev = to_acpi_dev(dev);
+
+        /*
+         * For now, we should only register 1 generic device -
+         * the ACPI root device - and from there, we walk the
+         * tree of ACPI devices to suspend each one using the
+         * ACPI driver methods.
+         */
+        if (acpi_dev->handle == ACPI_ROOT_OBJECT)
+                root_suspend(acpi_dev, state);
+        return 0;
+}
+
+
+
+static int root_resume(struct acpi_device * acpi_dev)
+{
+        struct acpi_device * dev, * next;
+        int result;
+
+        spin_lock(&acpi_device_lock);
+        list_for_each_entry_safe(dev, next, &acpi_device_list, g_list) {
+                if (dev->driver && dev->driver->ops.resume) {
+                        spin_unlock(&acpi_device_lock);
+                        result = dev->driver->ops.resume(dev, 0);
+                        if (result) {
+                                printk(KERN_ERR PREFIX "[%s - %s] resume failed: %d\n",
+                                       acpi_device_name(dev),
+                                       acpi_device_bid(dev), result);
+                        }
+                        spin_lock(&acpi_device_lock);
+                }
+        }
+        spin_unlock(&acpi_device_lock);
+        return 0;
+}
+
+
+static int acpi_device_resume(struct device * dev)
+{
+        struct acpi_device * acpi_dev = to_acpi_dev(dev);
+
+        /*
+         * For now, we should only register 1 generic device -
+         * the ACPI root device - and from there, we walk the
+         * tree of ACPI devices to resume each one using the
+         * ACPI driver methods.
+         */
+        if (acpi_dev->handle == ACPI_ROOT_OBJECT)
+                root_resume(acpi_dev);
+        return 0;
+}
+
+
+struct bus_type acpi_bus_type = {
+        .name           = "acpi",
+        .suspend        = acpi_device_suspend,
+        .resume         = acpi_device_resume,
+};
+
+
+
 static int __init acpi_scan_init(void)
 {
         int result;
@@ -1383,6 +1447,12 @@ static int __init acpi_scan_init(void)
 
         kset_register(&acpi_namespace_kset);
 
+        result = bus_register(&acpi_bus_type);
+        if (result) {
+                /* We don't want to quit even if we failed to add suspend/resume */
+                printk(KERN_ERR PREFIX "Could not register bus type\n");
+        }
+
         /*
          * Create the root device in the bus's device tree
          */
@@ -1392,6 +1462,16 @@ static int __init acpi_scan_init(void)
                 goto Done;
 
         result = acpi_start_single_object(acpi_root);
+        if (result)
+                goto Done;
+
+        acpi_root->dev.bus = &acpi_bus_type;
+        snprintf(acpi_root->dev.bus_id, BUS_ID_SIZE, "%s", acpi_bus_type.name);
+        result = device_register(&acpi_root->dev);
+        if (result) {
+                /* We don't want to quit even if we failed to add suspend/resume */
+                printk(KERN_ERR PREFIX "Could not register device\n");
+        }
 
         /*
          * Enumerate devices in the ACPI namespace.
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 930427fc0c4b..62ce87d71651 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -105,6 +105,14 @@ static int acpi_pm_enter(suspend_state_t pm_state)
         default:
                 return -EINVAL;
         }
+
+        /* ACPI 3.0 specs (P62) says that it's the responsabilty
+         * of the OSPM to clear the status bit [ implying that the
+         * POWER_BUTTON event should not reach userspace ]
+         */
+        if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3))
+                acpi_clear_event(ACPI_EVENT_POWER_BUTTON);
+
         local_irq_restore(flags);
         printk(KERN_DEBUG "Back to C!\n");
 
diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c
index 85df0ceda2a9..af1dbabaf0b1 100644
--- a/drivers/acpi/sleep/wakeup.c
+++ b/drivers/acpi/sleep/wakeup.c
@@ -155,7 +155,6 @@ static int __init acpi_wakeup_device_init(void)
 
         if (acpi_disabled)
                 return 0;
-        printk("ACPI wakeup devices: \n");
 
         spin_lock(&acpi_device_lock);
         list_for_each_safe(node, next, &acpi_wakeup_device_list) {
@@ -174,10 +173,8 @@ static int __init acpi_wakeup_device_init(void)
                         dev->wakeup.state.enabled = 1;
                         spin_lock(&acpi_device_lock);
                 }
-                printk("%4s ", dev->pnp.bus_id);
         }
         spin_unlock(&acpi_device_lock);
-        printk("\n");
 
         return 0;
 }
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index e4308c7a6743..a934ac42178d 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -39,7 +39,7 @@ ACPI_MODULE_NAME("acpi_system")
 #define ACPI_SYSTEM_FILE_EVENT          "event"
 #define ACPI_SYSTEM_FILE_DSDT           "dsdt"
 #define ACPI_SYSTEM_FILE_FADT           "fadt"
-extern FADT_DESCRIPTOR acpi_fadt;
+extern struct fadt_descriptor acpi_fadt;
 
 /* --------------------------------------------------------------------------
                               FS Interface (/proc)
@@ -82,7 +82,7 @@ acpi_system_read_dsdt(struct file *file,
 
         ACPI_FUNCTION_TRACE("acpi_system_read_dsdt");
 
-        status = acpi_get_table(ACPI_TABLE_DSDT, 1, &dsdt);
+        status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
         if (ACPI_FAILURE(status))
                 return_VALUE(-ENODEV);
 
@@ -110,7 +110,7 @@ acpi_system_read_fadt(struct file *file,
 
         ACPI_FUNCTION_TRACE("acpi_system_read_fadt");
 
-        status = acpi_get_table(ACPI_TABLE_FADT, 1, &fadt);
+        status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &fadt);
         if (ACPI_FAILURE(status))
                 return_VALUE(-ENODEV);
 
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 7f37c7cc5ef1..ed5e8816d83d 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -282,8 +282,8 @@ acpi_get_table_header_early(enum acpi_table_id id,
 
         /* Map the DSDT header via the pointer in the FADT */
         if (id == ACPI_DSDT) {
-                struct fadt_descriptor_rev2 *fadt =
-                    (struct fadt_descriptor_rev2 *)*header;
+                struct fadt_descriptor *fadt =
+                    (struct fadt_descriptor *)*header;
 
                 if (fadt->revision == 3 && fadt->Xdsdt) {
                         *header = (void *)__acpi_map_table(fadt->Xdsdt,
diff --git a/drivers/acpi/tables/tbconvrt.c b/drivers/acpi/tables/tbconvrt.c
index 03b37d2223bc..d697fcb35d52 100644
--- a/drivers/acpi/tables/tbconvrt.c
+++ b/drivers/acpi/tables/tbconvrt.c
@@ -41,8 +41,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/actables.h>
 
@@ -56,15 +54,15 @@ acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct,
                              acpi_physical_address address);
 
 static void
-acpi_tb_convert_fadt1(struct fadt_descriptor_rev2 *local_fadt,
+acpi_tb_convert_fadt1(struct fadt_descriptor *local_fadt,
                       struct fadt_descriptor_rev1 *original_fadt);
 
 static void
-acpi_tb_convert_fadt2(struct fadt_descriptor_rev2 *local_fadt,
-                      struct fadt_descriptor_rev2 *original_fadt);
+acpi_tb_convert_fadt2(struct fadt_descriptor *local_fadt,
+                      struct fadt_descriptor *original_fadt);
 
 u8 acpi_fadt_is_v1;
-EXPORT_SYMBOL(acpi_fadt_is_v1);
+ACPI_EXPORT_SYMBOL(acpi_fadt_is_v1)
 
 /*******************************************************************************
  *
@@ -122,7 +120,7 @@ acpi_status acpi_tb_convert_to_xsdt(struct acpi_table_desc *table_info)
 {
         acpi_size table_size;
         u32 i;
-        XSDT_DESCRIPTOR *new_table;
+        struct xsdt_descriptor *new_table;
 
         ACPI_FUNCTION_ENTRY();
 
@@ -133,7 +131,7 @@ acpi_status acpi_tb_convert_to_xsdt(struct acpi_table_desc *table_info)
 
         /* Allocate an XSDT */
 
-        new_table = ACPI_MEM_CALLOCATE(table_size);
+        new_table = ACPI_ALLOCATE_ZEROED(table_size);
         if (!new_table) {
                 return (AE_NO_MEMORY);
         }
@@ -147,17 +145,18 @@ acpi_status acpi_tb_convert_to_xsdt(struct acpi_table_desc *table_info)
         /* Copy the table pointers */
 
         for (i = 0; i < acpi_gbl_rsdt_table_count; i++) {
+
                 /* RSDT pointers are 32 bits, XSDT pointers are 64 bits */
 
                 if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
                         ACPI_STORE_ADDRESS(new_table->table_offset_entry[i],
                                            (ACPI_CAST_PTR
-                                            (struct rsdt_descriptor_rev1,
+                                            (struct rsdt_descriptor,
                                              table_info->pointer))->
                                            table_offset_entry[i]);
                 } else {
                         new_table->table_offset_entry[i] =
-                            (ACPI_CAST_PTR(XSDT_DESCRIPTOR,
+                            (ACPI_CAST_PTR(struct xsdt_descriptor,
                                            table_info->pointer))->
                             table_offset_entry[i];
                 }
@@ -219,7 +218,7 @@ acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct,
  ******************************************************************************/
 
 static void
-acpi_tb_convert_fadt1(struct fadt_descriptor_rev2 *local_fadt,
+acpi_tb_convert_fadt1(struct fadt_descriptor *local_fadt,
                       struct fadt_descriptor_rev1 *original_fadt)
 {
 
@@ -365,14 +364,13 @@ acpi_tb_convert_fadt1(struct fadt_descriptor_rev2 *local_fadt,
  ******************************************************************************/
 
 static void
-acpi_tb_convert_fadt2(struct fadt_descriptor_rev2 *local_fadt,
-                      struct fadt_descriptor_rev2 *original_fadt)
+acpi_tb_convert_fadt2(struct fadt_descriptor *local_fadt,
+                      struct fadt_descriptor *original_fadt)
 {
 
         /* We have an ACPI 2.0 FADT but we must copy it to our local buffer */
 
-        ACPI_MEMCPY(local_fadt, original_fadt,
-                    sizeof(struct fadt_descriptor_rev2));
+        ACPI_MEMCPY(local_fadt, original_fadt, sizeof(struct fadt_descriptor));
 
         /*
          * "X" fields are optional extensions to the original V1.0 fields, so
@@ -491,10 +489,10 @@ acpi_tb_convert_fadt2(struct fadt_descriptor_rev2 *local_fadt,
 
 acpi_status acpi_tb_convert_table_fadt(void)
 {
-        struct fadt_descriptor_rev2 *local_fadt;
+        struct fadt_descriptor *local_fadt;
         struct acpi_table_desc *table_desc;
 
-        ACPI_FUNCTION_TRACE("tb_convert_table_fadt");
+        ACPI_FUNCTION_TRACE(tb_convert_table_fadt);
 
         /*
          * acpi_gbl_FADT is valid. Validate the FADT length. The table must be
@@ -508,13 +506,14 @@ acpi_status acpi_tb_convert_table_fadt(void)
 
         /* Allocate buffer for the ACPI 2.0(+) FADT */
 
-        local_fadt = ACPI_MEM_CALLOCATE(sizeof(struct fadt_descriptor_rev2));
+        local_fadt = ACPI_ALLOCATE_ZEROED(sizeof(struct fadt_descriptor));
         if (!local_fadt) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
 
         if (acpi_gbl_FADT->revision >= FADT2_REVISION_ID) {
-                if (acpi_gbl_FADT->length < sizeof(struct fadt_descriptor_rev2)) {
+                if (acpi_gbl_FADT->length < sizeof(struct fadt_descriptor)) {
+
                         /* Length is too short to be a V2.0 table */
 
                         ACPI_WARNING((AE_INFO,
@@ -538,11 +537,11 @@ acpi_status acpi_tb_convert_table_fadt(void)
         /* Global FADT pointer will point to the new common V2.0 FADT */
 
         acpi_gbl_FADT = local_fadt;
-        acpi_gbl_FADT->length = sizeof(FADT_DESCRIPTOR);
+        acpi_gbl_FADT->length = sizeof(struct fadt_descriptor);
 
         /* Free the original table */
 
-        table_desc = acpi_gbl_table_lists[ACPI_TABLE_FADT].next;
+        table_desc = acpi_gbl_table_lists[ACPI_TABLE_ID_FADT].next;
         acpi_tb_delete_single_table(table_desc);
 
         /* Install the new table */
@@ -550,7 +549,7 @@ acpi_status acpi_tb_convert_table_fadt(void)
         table_desc->pointer =
             ACPI_CAST_PTR(struct acpi_table_header, acpi_gbl_FADT);
         table_desc->allocation = ACPI_MEM_ALLOCATED;
-        table_desc->length = sizeof(struct fadt_descriptor_rev2);
+        table_desc->length = sizeof(struct fadt_descriptor);
 
         /* Dump the entire FADT */
 
@@ -580,7 +579,7 @@ acpi_status acpi_tb_convert_table_fadt(void)
 acpi_status acpi_tb_build_common_facs(struct acpi_table_desc *table_info)
 {
 
-        ACPI_FUNCTION_TRACE("tb_build_common_facs");
+        ACPI_FUNCTION_TRACE(tb_build_common_facs);
 
         /* Absolute minimum length is 24, but the ACPI spec says 64 */
 
@@ -603,6 +602,7 @@ acpi_status acpi_tb_build_common_facs(struct acpi_table_desc *table_info)
         if ((acpi_gbl_RSDP->revision < 2) ||
             (acpi_gbl_FACS->length < 32) ||
             (!(acpi_gbl_FACS->xfirmware_waking_vector))) {
+
                 /* ACPI 1.0 FACS or short table or optional X_ field is zero */
 
                 acpi_gbl_common_fACS.firmware_waking_vector = ACPI_CAST_PTR(u64,
diff --git a/drivers/acpi/tables/tbget.c b/drivers/acpi/tables/tbget.c
index 09b4ee6dfd60..99eacceff563 100644
--- a/drivers/acpi/tables/tbget.c
+++ b/drivers/acpi/tables/tbget.c
@@ -78,7 +78,7 @@ acpi_tb_get_table(struct acpi_pointer *address,
         acpi_status status;
         struct acpi_table_header header;
 
-        ACPI_FUNCTION_TRACE("tb_get_table");
+        ACPI_FUNCTION_TRACE(tb_get_table);
 
         /* Get the header in order to get signature and table size */
 
@@ -124,7 +124,7 @@ acpi_tb_get_table_header(struct acpi_pointer *address,
         acpi_status status = AE_OK;
         struct acpi_table_header *header = NULL;
 
-        ACPI_FUNCTION_TRACE("tb_get_table_header");
+        ACPI_FUNCTION_TRACE(tb_get_table_header);
 
         /*
          * Flags contains the current processor mode (Virtual or Physical
@@ -148,6 +148,10 @@ acpi_tb_get_table_header(struct acpi_pointer *address,
                                             sizeof(struct acpi_table_header),
                                             (void *)&header);
                 if (ACPI_FAILURE(status)) {
+                        ACPI_ERROR((AE_INFO,
+                                    "Could not map memory at %8.8X%8.8X for table header",
+                                    ACPI_FORMAT_UINT64(address->pointer.
+                                                       physical)));
                         return_ACPI_STATUS(status);
                 }
 
@@ -198,7 +202,7 @@ acpi_tb_get_table_body(struct acpi_pointer *address,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("tb_get_table_body");
+        ACPI_FUNCTION_TRACE(tb_get_table_body);
 
         if (!table_info || !address) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -208,6 +212,7 @@ acpi_tb_get_table_body(struct acpi_pointer *address,
 
         status = acpi_tb_table_override(header, table_info);
         if (ACPI_SUCCESS(status)) {
+
                 /* Table was overridden by the host OS */
 
                 return_ACPI_STATUS(status);
@@ -241,7 +246,7 @@ acpi_tb_table_override(struct acpi_table_header *header,
         acpi_status status;
         struct acpi_pointer address;
 
-        ACPI_FUNCTION_TRACE("tb_table_override");
+        ACPI_FUNCTION_TRACE(tb_table_override);
 
         /*
          * The OSL will examine the header and decide whether to override this
@@ -250,6 +255,7 @@ acpi_tb_table_override(struct acpi_table_header *header,
          */
         status = acpi_os_table_override(header, &new_table);
         if (ACPI_FAILURE(status)) {
+
                 /* Some severe error from the OSL, but we basically ignore it */
 
                 ACPI_EXCEPTION((AE_INFO, status,
@@ -258,6 +264,7 @@ acpi_tb_table_override(struct acpi_table_header *header,
         }
 
         if (!new_table) {
+
                 /* No table override */
 
                 return_ACPI_STATUS(AE_NO_ACPI_TABLES);
@@ -311,7 +318,7 @@ acpi_tb_get_this_table(struct acpi_pointer *address,
         u8 allocation;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("tb_get_this_table");
+        ACPI_FUNCTION_TRACE(tb_get_this_table);
 
         /*
          * Flags contains the current processor mode (Virtual or Physical
@@ -323,7 +330,7 @@ acpi_tb_get_this_table(struct acpi_pointer *address,
 
                 /* Pointer matches processor mode, copy the table to a new buffer */
 
-                full_table = ACPI_MEM_ALLOCATE(header->length);
+                full_table = ACPI_ALLOCATE(header->length);
                 if (!full_table) {
                         ACPI_ERROR((AE_INFO,
                                     "Could not allocate table memory for [%4.4s] length %X",
@@ -376,11 +383,12 @@ acpi_tb_get_this_table(struct acpi_pointer *address,
          * Validate checksum for _most_ tables,
          * even the ones whose signature we don't recognize
          */
-        if (table_info->type != ACPI_TABLE_FACS) {
+        if (table_info->type != ACPI_TABLE_ID_FACS) {
                 status = acpi_tb_verify_table_checksum(full_table);
 
 #if (!ACPI_CHECKSUM_ABORT)
                 if (ACPI_FAILURE(status)) {
+
                         /* Ignore the error if configuration says so */
 
                         status = AE_OK;
@@ -409,7 +417,7 @@ acpi_tb_get_this_table(struct acpi_pointer *address,
  *
  * PARAMETERS:  table_type      - one of the defined table types
  *              Instance        - Which table of this type
- *              table_ptr_loc   - pointer to location to place the pointer for
+ *              return_table    - pointer to location to place the pointer for
  *                                return
  *
  * RETURN:      Status
@@ -420,57 +428,34 @@ acpi_tb_get_this_table(struct acpi_pointer *address,
 
 acpi_status
 acpi_tb_get_table_ptr(acpi_table_type table_type,
-                      u32 instance, struct acpi_table_header **table_ptr_loc)
+                      u32 instance, struct acpi_table_header **return_table)
 {
         struct acpi_table_desc *table_desc;
         u32 i;
 
-        ACPI_FUNCTION_TRACE("tb_get_table_ptr");
-
-        if (!acpi_gbl_DSDT) {
-                return_ACPI_STATUS(AE_NO_ACPI_TABLES);
-        }
+        ACPI_FUNCTION_TRACE(tb_get_table_ptr);
 
-        if (table_type > ACPI_TABLE_MAX) {
+        if (table_type > ACPI_TABLE_ID_MAX) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
-        /*
-         * For all table types (Single/Multiple), the first
-         * instance is always in the list head.
-         */
-        if (instance == 1) {
-                /* Get the first */
-
-                *table_ptr_loc = NULL;
-                if (acpi_gbl_table_lists[table_type].next) {
-                        *table_ptr_loc =
-                            acpi_gbl_table_lists[table_type].next->pointer;
-                }
-                return_ACPI_STATUS(AE_OK);
-        }
-
-        /* Check for instance out of range */
+        /* Check for instance out of range of the current table count */
 
         if (instance > acpi_gbl_table_lists[table_type].count) {
                 return_ACPI_STATUS(AE_NOT_EXIST);
         }
 
-        /* Walk the list to get the desired table
-         * Since the if (Instance == 1) check above checked for the
-         * first table, setting table_desc equal to the .Next member
-         * is actually pointing to the second table.  Therefore, we
-         * need to walk from the 2nd table until we reach the Instance
-         * that the user is looking for and return its table pointer.
+        /*
+         * Walk the list to get the desired table
+         * Note: Instance is one-based
          */
         table_desc = acpi_gbl_table_lists[table_type].next;
-        for (i = 2; i < instance; i++) {
+        for (i = 1; i < instance; i++) {
                 table_desc = table_desc->next;
         }
 
         /* We are now pointing to the requested table's descriptor */
 
-        *table_ptr_loc = table_desc->pointer;
-
+        *return_table = table_desc->pointer;
         return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/tables/tbgetall.c b/drivers/acpi/tables/tbgetall.c
index 134e5dce0bc1..ad982112e4c6 100644
--- a/drivers/acpi/tables/tbgetall.c
+++ b/drivers/acpi/tables/tbgetall.c
@@ -77,7 +77,7 @@ acpi_tb_get_primary_table(struct acpi_pointer *address,
         acpi_status status;
         struct acpi_table_header header;
 
-        ACPI_FUNCTION_TRACE("tb_get_primary_table");
+        ACPI_FUNCTION_TRACE(tb_get_primary_table);
 
         /* Ignore a NULL address in the RSDT */
 
@@ -140,7 +140,7 @@ acpi_tb_get_secondary_table(struct acpi_pointer *address,
         acpi_status status;
         struct acpi_table_header header;
 
-        ACPI_FUNCTION_TRACE_STR("tb_get_secondary_table", signature);
+        ACPI_FUNCTION_TRACE_STR(tb_get_secondary_table, signature);
 
         /* Get the header in order to match the signature */
 
@@ -151,7 +151,7 @@ acpi_tb_get_secondary_table(struct acpi_pointer *address,
 
         /* Signature must match request */
 
-        if (ACPI_STRNCMP(header.signature, signature, ACPI_NAME_SIZE)) {
+        if (!ACPI_COMPARE_NAME(header.signature, signature)) {
                 ACPI_ERROR((AE_INFO,
                             "Incorrect table signature - wanted [%s] found [%4.4s]",
                             signature, header.signature));
@@ -207,7 +207,7 @@ acpi_status acpi_tb_get_required_tables(void)
         struct acpi_table_desc table_info;
         struct acpi_pointer address;
 
-        ACPI_FUNCTION_TRACE("tb_get_required_tables");
+        ACPI_FUNCTION_TRACE(tb_get_required_tables);
 
         ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%d ACPI tables in RSDT\n",
                           acpi_gbl_rsdt_table_count));
@@ -223,6 +223,7 @@ acpi_status acpi_tb_get_required_tables(void)
          * any SSDTs.
          */
         for (i = 0; i < acpi_gbl_rsdt_table_count; i++) {
+
                 /* Get the table address from the common internal XSDT */
 
                 address.pointer.value = acpi_gbl_XSDT->table_offset_entry[i];
@@ -305,6 +306,6 @@ acpi_status acpi_tb_get_required_tables(void)
 
         /* Always delete the RSDP mapping, we are done with it */
 
-        acpi_tb_delete_tables_by_type(ACPI_TABLE_RSDP);
+        acpi_tb_delete_tables_by_type(ACPI_TABLE_ID_RSDP);
         return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c
index 7ffd0fddb4e5..7ca2df75bb11 100644
--- a/drivers/acpi/tables/tbinstal.c
+++ b/drivers/acpi/tables/tbinstal.c
@@ -73,17 +73,18 @@ acpi_tb_match_signature(char *signature,
 {
         acpi_native_uint i;
 
-        ACPI_FUNCTION_TRACE("tb_match_signature");
+        ACPI_FUNCTION_TRACE(tb_match_signature);
 
         /* Search for a signature match among the known table types */
 
-        for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) {
+        for (i = 0; i < (ACPI_TABLE_ID_MAX + 1); i++) {
                 if (!(acpi_gbl_table_data[i].flags & search_type)) {
                         continue;
                 }
 
                 if (!ACPI_STRNCMP(signature, acpi_gbl_table_data[i].signature,
                                   acpi_gbl_table_data[i].sig_length)) {
+
                         /* Found a signature match, return index if requested */
 
                         if (table_info) {
@@ -122,7 +123,7 @@ acpi_status acpi_tb_install_table(struct acpi_table_desc *table_info)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("tb_install_table");
+        ACPI_FUNCTION_TRACE(tb_install_table);
 
         /* Lock tables while installing */
 
@@ -187,7 +188,7 @@ acpi_tb_recognize_table(struct acpi_table_desc *table_info, u8 search_type)
         struct acpi_table_header *table_header;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("tb_recognize_table");
+        ACPI_FUNCTION_TRACE(tb_recognize_table);
 
         /* Ensure that we have a valid table pointer */
 
@@ -218,7 +219,6 @@ acpi_tb_recognize_table(struct acpi_table_desc *table_info, u8 search_type)
         /* Return the table type and length via the info struct */
 
         table_info->length = (acpi_size) table_header->length;
-
         return_ACPI_STATUS(status);
 }
 
@@ -243,11 +243,11 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type,
         struct acpi_table_desc *table_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_U32("tb_init_table_descriptor", table_type);
+        ACPI_FUNCTION_TRACE_U32(tb_init_table_descriptor, table_type);
 
         /* Allocate a descriptor for this table */
 
-        table_desc = ACPI_MEM_CALLOCATE(sizeof(struct acpi_table_desc));
+        table_desc = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_table_desc));
         if (!table_desc) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
@@ -274,7 +274,7 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type,
                  * at this location, so return an error.
                  */
                 if (list_head->next) {
-                        ACPI_MEM_FREE(table_desc);
+                        ACPI_FREE(table_desc);
                         return_ACPI_STATUS(AE_ALREADY_EXISTS);
                 }
 
@@ -312,15 +312,14 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type,
 
         /* Finish initialization of the table descriptor */
 
+        table_desc->loaded_into_namespace = FALSE;
         table_desc->type = (u8) table_type;
         table_desc->pointer = table_info->pointer;
         table_desc->length = table_info->length;
         table_desc->allocation = table_info->allocation;
         table_desc->aml_start = (u8 *) (table_desc->pointer + 1),
-            table_desc->aml_length = (u32) (table_desc->length -
-                                            (u32) sizeof(struct
-                                                         acpi_table_header));
-        table_desc->loaded_into_namespace = FALSE;
+            table_desc->aml_length = (u32)
+            (table_desc->length - (u32) sizeof(struct acpi_table_header));
 
         /*
          * Set the appropriate global pointer (if there is one) to point to the
@@ -335,7 +334,6 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type,
 
         table_info->owner_id = table_desc->owner_id;
         table_info->installed_desc = table_desc;
-
         return_ACPI_STATUS(AE_OK);
 }
 
@@ -359,7 +357,7 @@ void acpi_tb_delete_all_tables(void)
          * Free memory allocated for ACPI tables
          * Memory can either be mapped or allocated
          */
-        for (type = 0; type < NUM_ACPI_TABLE_TYPES; type++) {
+        for (type = 0; type < (ACPI_TABLE_ID_MAX + 1); type++) {
                 acpi_tb_delete_tables_by_type(type);
         }
 }
@@ -383,9 +381,9 @@ void acpi_tb_delete_tables_by_type(acpi_table_type type)
         u32 count;
         u32 i;
 
-        ACPI_FUNCTION_TRACE_U32("tb_delete_tables_by_type", type);
+        ACPI_FUNCTION_TRACE_U32(tb_delete_tables_by_type, type);
 
-        if (type > ACPI_TABLE_MAX) {
+        if (type > ACPI_TABLE_ID_MAX) {
                 return_VOID;
         }
 
@@ -396,28 +394,28 @@ void acpi_tb_delete_tables_by_type(acpi_table_type type)
         /* Clear the appropriate "typed" global table pointer */
 
         switch (type) {
-        case ACPI_TABLE_RSDP:
+        case ACPI_TABLE_ID_RSDP:
                 acpi_gbl_RSDP = NULL;
                 break;
 
-        case ACPI_TABLE_DSDT:
+        case ACPI_TABLE_ID_DSDT:
                 acpi_gbl_DSDT = NULL;
                 break;
 
-        case ACPI_TABLE_FADT:
+        case ACPI_TABLE_ID_FADT:
                 acpi_gbl_FADT = NULL;
                 break;
 
-        case ACPI_TABLE_FACS:
+        case ACPI_TABLE_ID_FACS:
                 acpi_gbl_FACS = NULL;
                 break;
 
-        case ACPI_TABLE_XSDT:
+        case ACPI_TABLE_ID_XSDT:
                 acpi_gbl_XSDT = NULL;
                 break;
 
-        case ACPI_TABLE_SSDT:
-        case ACPI_TABLE_PSDT:
+        case ACPI_TABLE_ID_SSDT:
+        case ACPI_TABLE_ID_PSDT:
         default:
                 break;
         }
@@ -471,7 +469,7 @@ void acpi_tb_delete_single_table(struct acpi_table_desc *table_desc)
 
         case ACPI_MEM_ALLOCATED:
 
-                ACPI_MEM_FREE(table_desc->pointer);
+                ACPI_FREE(table_desc->pointer);
                 break;
 
         case ACPI_MEM_MAPPED:
@@ -503,7 +501,7 @@ struct acpi_table_desc *acpi_tb_uninstall_table(struct acpi_table_desc
 {
         struct acpi_table_desc *next_desc;
 
-        ACPI_FUNCTION_TRACE_PTR("tb_uninstall_table", table_desc);
+        ACPI_FUNCTION_TRACE_PTR(tb_uninstall_table, table_desc);
 
         if (!table_desc) {
                 return_PTR(NULL);
@@ -530,7 +528,7 @@ struct acpi_table_desc *acpi_tb_uninstall_table(struct acpi_table_desc
         /* Free the table descriptor */
 
         next_desc = table_desc->next;
-        ACPI_MEM_FREE(table_desc);
+        ACPI_FREE(table_desc);
 
         /* Return pointer to the next descriptor */
 
diff --git a/drivers/acpi/tables/tbrsdt.c b/drivers/acpi/tables/tbrsdt.c
index 4d308220225d..abcb08c2592a 100644
--- a/drivers/acpi/tables/tbrsdt.c
+++ b/drivers/acpi/tables/tbrsdt.c
@@ -64,7 +64,7 @@ acpi_status acpi_tb_verify_rsdp(struct acpi_pointer *address)
         acpi_status status;
         struct rsdp_descriptor *rsdp;
 
-        ACPI_FUNCTION_TRACE("tb_verify_rsdp");
+        ACPI_FUNCTION_TRACE(tb_verify_rsdp);
 
         switch (address->pointer_type) {
         case ACPI_LOGICAL_POINTER:
@@ -78,7 +78,7 @@ acpi_status acpi_tb_verify_rsdp(struct acpi_pointer *address)
                  */
                 status = acpi_os_map_memory(address->pointer.physical,
                                             sizeof(struct rsdp_descriptor),
-                                            (void *)&rsdp);
+                                            ACPI_CAST_PTR(void, &rsdp));
                 if (ACPI_FAILURE(status)) {
                         return_ACPI_STATUS(status);
                 }
@@ -95,15 +95,20 @@ acpi_status acpi_tb_verify_rsdp(struct acpi_pointer *address)
                 goto cleanup;
         }
 
-        /* The RSDP supplied is OK */
+        /* RSDP is ok. Init the table info */
 
         table_info.pointer = ACPI_CAST_PTR(struct acpi_table_header, rsdp);
         table_info.length = sizeof(struct rsdp_descriptor);
-        table_info.allocation = ACPI_MEM_MAPPED;
+
+        if (address->pointer_type == ACPI_PHYSICAL_POINTER) {
+                table_info.allocation = ACPI_MEM_MAPPED;
+        } else {
+                table_info.allocation = ACPI_MEM_NOT_ALLOCATED;
+        }
 
         /* Save the table pointers and allocation info */
 
-        status = acpi_tb_init_table_descriptor(ACPI_TABLE_RSDP, &table_info);
+        status = acpi_tb_init_table_descriptor(ACPI_TABLE_ID_RSDP, &table_info);
         if (ACPI_FAILURE(status)) {
                 goto cleanup;
         }
@@ -174,22 +179,20 @@ void acpi_tb_get_rsdt_address(struct acpi_pointer *out_address)
 
 acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr)
 {
-        int no_match;
+        char *signature;
 
         ACPI_FUNCTION_ENTRY();
 
-        /*
-         * Search for appropriate signature, RSDT or XSDT
-         */
+        /* Search for appropriate signature, RSDT or XSDT */
+
         if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
-                no_match = ACPI_STRNCMP((char *)table_ptr, RSDT_SIG,
-                                        sizeof(RSDT_SIG) - 1);
+                signature = RSDT_SIG;
         } else {
-                no_match = ACPI_STRNCMP((char *)table_ptr, XSDT_SIG,
-                                        sizeof(XSDT_SIG) - 1);
+                signature = XSDT_SIG;
         }
 
-        if (no_match) {
+        if (!ACPI_COMPARE_NAME(table_ptr->signature, signature)) {
+
                 /* Invalid RSDT or XSDT signature */
 
                 ACPI_ERROR((AE_INFO,
@@ -198,10 +201,8 @@ acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr)
                 ACPI_DUMP_BUFFER(acpi_gbl_RSDP, 20);
 
                 ACPI_ERROR((AE_INFO,
-                            "RSDT/XSDT signature at %X (%p) is invalid",
-                            acpi_gbl_RSDP->rsdt_physical_address,
-                            (void *)(acpi_native_uint) acpi_gbl_RSDP->
-                            rsdt_physical_address));
+                            "RSDT/XSDT signature at %X is invalid",
+                            acpi_gbl_RSDP->rsdt_physical_address));
 
                 if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
                         ACPI_ERROR((AE_INFO, "Looking for RSDT"));
@@ -234,13 +235,13 @@ acpi_status acpi_tb_get_table_rsdt(void)
         acpi_status status;
         struct acpi_pointer address;
 
-        ACPI_FUNCTION_TRACE("tb_get_table_rsdt");
+        ACPI_FUNCTION_TRACE(tb_get_table_rsdt);
 
         /* Get the RSDT/XSDT via the RSDP */
 
         acpi_tb_get_rsdt_address(&address);
 
-        table_info.type = ACPI_TABLE_XSDT;
+        table_info.type = ACPI_TABLE_ID_XSDT;
         status = acpi_tb_get_table(&address, &table_info);
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status,
@@ -274,12 +275,13 @@ acpi_status acpi_tb_get_table_rsdt(void)
 
         /* Save the table pointers and allocation info */
 
-        status = acpi_tb_init_table_descriptor(ACPI_TABLE_XSDT, &table_info);
+        status = acpi_tb_init_table_descriptor(ACPI_TABLE_ID_XSDT, &table_info);
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
         }
 
-        acpi_gbl_XSDT = ACPI_CAST_PTR(XSDT_DESCRIPTOR, table_info.pointer);
+        acpi_gbl_XSDT =
+            ACPI_CAST_PTR(struct xsdt_descriptor, table_info.pointer);
 
         ACPI_DEBUG_PRINT((ACPI_DB_INFO, "XSDT located at %p\n", acpi_gbl_XSDT));
         return_ACPI_STATUS(status);
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
index bc571592f087..209a401801e3 100644
--- a/drivers/acpi/tables/tbutils.c
+++ b/drivers/acpi/tables/tbutils.c
@@ -71,7 +71,7 @@ acpi_status acpi_tb_is_table_installed(struct acpi_table_desc *new_table_desc)
 {
         struct acpi_table_desc *table_desc;
 
-        ACPI_FUNCTION_TRACE("tb_is_table_installed");
+        ACPI_FUNCTION_TRACE(tb_is_table_installed);
 
         /* Get the list descriptor and first table descriptor */
 
@@ -96,10 +96,11 @@ acpi_status acpi_tb_is_table_installed(struct acpi_table_desc *new_table_desc)
                     (!ACPI_MEMCMP
                      (table_desc->pointer, new_table_desc->pointer,
                       new_table_desc->pointer->length))) {
+
                         /* Match: this table is already installed */
 
                         ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
-                                          "Table [%4.4s] already installed: Rev %X oem_table_id [%8.8s]\n",
+                                          "Table [%4.4s] already installed: Rev %X OemTableId [%8.8s]\n",
                                           new_table_desc->pointer->signature,
                                           new_table_desc->pointer->revision,
                                           new_table_desc->pointer->
@@ -159,12 +160,8 @@ acpi_tb_validate_table_header(struct acpi_table_header *table_header)
 
         ACPI_MOVE_32_TO_32(&signature, table_header->signature);
         if (!acpi_ut_valid_acpi_name(signature)) {
-                ACPI_ERROR((AE_INFO,
-                            "Table signature at %p [%p] has invalid characters",
-                            table_header, &signature));
-
-                ACPI_WARNING((AE_INFO, "Invalid table signature found: [%4.4s]",
-                              ACPI_CAST_PTR(char, &signature)));
+                ACPI_ERROR((AE_INFO, "Invalid table signature 0x%8.8X",
+                            signature));
 
                 ACPI_DUMP_BUFFER(table_header,
                                  sizeof(struct acpi_table_header));
@@ -175,12 +172,9 @@ acpi_tb_validate_table_header(struct acpi_table_header *table_header)
 
         if (table_header->length < sizeof(struct acpi_table_header)) {
                 ACPI_ERROR((AE_INFO,
-                            "Invalid length in table header %p name %4.4s",
-                            table_header, (char *)&signature));
-
-                ACPI_WARNING((AE_INFO,
-                              "Invalid table header length (0x%X) found",
-                              (u32) table_header->length));
+                            "Invalid length 0x%X in table with signature %4.4s",
+                            (u32) table_header->length,
+                            ACPI_CAST_PTR(char, &signature)));
 
                 ACPI_DUMP_BUFFER(table_header,
                                  sizeof(struct acpi_table_header));
@@ -192,72 +186,119 @@ acpi_tb_validate_table_header(struct acpi_table_header *table_header)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_verify_table_checksum
+ * FUNCTION:    acpi_tb_sum_table
  *
- * PARAMETERS:  *table_header           - ACPI table to verify
+ * PARAMETERS:  Buffer              - Buffer to sum
+ *              Length              - Size of the buffer
  *
- * RETURN:      8 bit checksum of table
+ * RETURN:      8 bit sum of buffer
  *
- * DESCRIPTION: Does an 8 bit checksum of table and returns status.  A correct
- *              table should have a checksum of 0.
+ * DESCRIPTION: Computes an 8 bit sum of the buffer(length) and returns it.
  *
  ******************************************************************************/
 
-acpi_status
-acpi_tb_verify_table_checksum(struct acpi_table_header * table_header)
+u8 acpi_tb_sum_table(void *buffer, u32 length)
+{
+        acpi_native_uint i;
+        u8 sum = 0;
+
+        if (!buffer || !length) {
+                return (0);
+        }
+
+        for (i = 0; i < length; i++) {
+                sum = (u8) (sum + ((u8 *) buffer)[i]);
+        }
+        return (sum);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_generate_checksum
+ *
+ * PARAMETERS:  Table               - Pointer to a valid ACPI table (with a
+ *                                    standard ACPI header)
+ *
+ * RETURN:      8 bit checksum of buffer
+ *
+ * DESCRIPTION: Computes an 8 bit checksum of the table.
+ *
+ ******************************************************************************/
+
+u8 acpi_tb_generate_checksum(struct acpi_table_header * table)
 {
         u8 checksum;
-        acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("tb_verify_table_checksum");
+        /* Sum the entire table as-is */
 
-        /* Compute the checksum on the table */
+        checksum = acpi_tb_sum_table(table, table->length);
 
-        checksum =
-            acpi_tb_generate_checksum(table_header, table_header->length);
+        /* Subtract off the existing checksum value in the table */
 
-        /* Return the appropriate exception */
+        checksum = (u8) (checksum - table->checksum);
 
-        if (checksum) {
-                ACPI_WARNING((AE_INFO,
-                              "Invalid checksum in table [%4.4s] (%02X, sum %02X is not zero)",
-                              table_header->signature,
-                              (u32) table_header->checksum, (u32) checksum));
+        /* Compute the final checksum */
 
-                status = AE_BAD_CHECKSUM;
-        }
-        return_ACPI_STATUS(status);
+        checksum = (u8) (0 - checksum);
+        return (checksum);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_generate_checksum
+ * FUNCTION:    acpi_tb_set_checksum
  *
- * PARAMETERS:  Buffer              - Buffer to checksum
- *              Length              - Size of the buffer
+ * PARAMETERS:  Table               - Pointer to a valid ACPI table (with a
+ *                                    standard ACPI header)
  *
- * RETURN:      8 bit checksum of buffer
+ * RETURN:      None. Sets the table checksum field
  *
- * DESCRIPTION: Computes an 8 bit checksum of the buffer(length) and returns it.
+ * DESCRIPTION: Computes an 8 bit checksum of the table and inserts the
+ *              checksum into the table header.
  *
  ******************************************************************************/
 
-u8 acpi_tb_generate_checksum(void *buffer, u32 length)
+void acpi_tb_set_checksum(struct acpi_table_header *table)
 {
-        u8 *end_buffer;
-        u8 *rover;
-        u8 sum = 0;
 
-        if (buffer && length) {
-                /*  Buffer and Length are valid   */
+        table->checksum = acpi_tb_generate_checksum(table);
+}
 
-                end_buffer = ACPI_ADD_PTR(u8, buffer, length);
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_verify_table_checksum
+ *
+ * PARAMETERS:  *table_header           - ACPI table to verify
+ *
+ * RETURN:      8 bit checksum of table
+ *
+ * DESCRIPTION: Generates an 8 bit checksum of table and returns and compares
+ *              it to the existing checksum value.
+ *
+ ******************************************************************************/
 
-                for (rover = buffer; rover < end_buffer; rover++) {
-                        sum = (u8) (sum + *rover);
-                }
+acpi_status
+acpi_tb_verify_table_checksum(struct acpi_table_header *table_header)
+{
+        u8 checksum;
+
+        ACPI_FUNCTION_TRACE(tb_verify_table_checksum);
+
+        /* Compute the checksum on the table */
+
+        checksum = acpi_tb_generate_checksum(table_header);
+
+        /* Checksum ok? */
+
+        if (checksum == table_header->checksum) {
+                return_ACPI_STATUS(AE_OK);
         }
-        return (sum);
+
+        ACPI_WARNING((AE_INFO,
+                      "Incorrect checksum in table [%4.4s] - is %2.2X, should be %2.2X",
+                      table_header->signature, table_header->checksum,
+                      checksum));
+
+        return_ACPI_STATUS(AE_BAD_CHECKSUM);
 }
 
 #ifdef ACPI_OBSOLETE_FUNCTIONS
@@ -276,12 +317,12 @@ u8 acpi_tb_generate_checksum(void *buffer, u32 length)
 
 acpi_status
 acpi_tb_handle_to_object(u16 table_id,
-                         struct acpi_table_desc ** return_table_desc)
+                         struct acpi_table_desc **return_table_desc)
 {
         u32 i;
         struct acpi_table_desc *table_desc;
 
-        ACPI_FUNCTION_NAME("tb_handle_to_object");
+        ACPI_FUNCTION_NAME(tb_handle_to_object);
 
         for (i = 0; i < ACPI_TABLE_MAX; i++) {
                 table_desc = acpi_gbl_table_lists[i].next;
@@ -295,7 +336,7 @@ acpi_tb_handle_to_object(u16 table_id,
                 }
         }
 
-        ACPI_ERROR((AE_INFO, "table_id=%X does not exist", table_id));
+        ACPI_ERROR((AE_INFO, "TableId=%X does not exist", table_id));
         return (AE_BAD_PARAMETER);
 }
 #endif
diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c
index 9fe53c9d5b9a..4e91f2984815 100644
--- a/drivers/acpi/tables/tbxface.c
+++ b/drivers/acpi/tables/tbxface.c
@@ -42,8 +42,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 #include <acpi/actables.h>
@@ -68,7 +66,7 @@ acpi_status acpi_load_tables(void)
         struct acpi_pointer rsdp_address;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_load_tables");
+        ACPI_FUNCTION_TRACE(acpi_load_tables);
 
         /* Get the RSDP */
 
@@ -123,6 +121,8 @@ acpi_status acpi_load_tables(void)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_load_tables)
+
 #ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
@@ -139,14 +139,13 @@ acpi_status acpi_load_tables(void)
  *              is determined that the table is invalid, the call will fail.
  *
  ******************************************************************************/
-
 acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
 {
         acpi_status status;
         struct acpi_table_desc table_info;
         struct acpi_pointer address;
 
-        ACPI_FUNCTION_TRACE("acpi_load_table");
+        ACPI_FUNCTION_TRACE(acpi_load_table);
 
         if (!table_ptr) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -174,6 +173,7 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
         status = acpi_tb_install_table(&table_info);
         if (ACPI_FAILURE(status)) {
                 if (status == AE_ALREADY_EXISTS) {
+
                         /* Table already exists, no error */
 
                         status = AE_OK;
@@ -188,12 +188,12 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
         /* Convert the table to common format if necessary */
 
         switch (table_info.type) {
-        case ACPI_TABLE_FADT:
+        case ACPI_TABLE_ID_FADT:
 
                 status = acpi_tb_convert_table_fadt();
                 break;
 
-        case ACPI_TABLE_FACS:
+        case ACPI_TABLE_ID_FACS:
 
                 status = acpi_tb_build_common_facs(&table_info);
                 break;
@@ -208,6 +208,7 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
         }
 
         if (ACPI_FAILURE(status)) {
+
                 /* Uninstall table and free the buffer */
 
                 (void)acpi_tb_uninstall_table(table_info.installed_desc);
@@ -216,6 +217,8 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_load_table)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_unload_table
@@ -227,16 +230,15 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
  * DESCRIPTION: This routine is used to force the unload of a table
  *
  ******************************************************************************/
-
 acpi_status acpi_unload_table(acpi_table_type table_type)
 {
         struct acpi_table_desc *table_desc;
 
-        ACPI_FUNCTION_TRACE("acpi_unload_table");
+        ACPI_FUNCTION_TRACE(acpi_unload_table);
 
         /* Parameter validation */
 
-        if (table_type > ACPI_TABLE_MAX) {
+        if (table_type > ACPI_TABLE_ID_MAX) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
@@ -261,6 +263,8 @@ acpi_status acpi_unload_table(acpi_table_type table_type)
         return_ACPI_STATUS(AE_OK);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_unload_table)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_table_header
@@ -281,7 +285,6 @@ acpi_status acpi_unload_table(acpi_table_type table_type)
  *              have a standard header and is fixed length.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_get_table_header(acpi_table_type table_type,
                       u32 instance, struct acpi_table_header *out_table_header)
@@ -289,16 +292,16 @@ acpi_get_table_header(acpi_table_type table_type,
         struct acpi_table_header *tbl_ptr;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_get_table_header");
+        ACPI_FUNCTION_TRACE(acpi_get_table_header);
 
         if ((instance == 0) ||
-            (table_type == ACPI_TABLE_RSDP) || (!out_table_header)) {
+            (table_type == ACPI_TABLE_ID_RSDP) || (!out_table_header)) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
         /* Check the table type and instance */
 
-        if ((table_type > ACPI_TABLE_MAX) ||
+        if ((table_type > ACPI_TABLE_ID_MAX) ||
             (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) &&
              instance > 1)) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -325,6 +328,7 @@ acpi_get_table_header(acpi_table_type table_type,
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_get_table_header)
 #endif                          /*  ACPI_FUTURE_USAGE  */
 
 /*******************************************************************************
@@ -349,7 +353,6 @@ acpi_get_table_header(acpi_table_type table_type,
  *              a complete table including the header.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_get_table(acpi_table_type table_type,
                u32 instance, struct acpi_buffer *ret_buffer)
@@ -358,7 +361,7 @@ acpi_get_table(acpi_table_type table_type,
         acpi_status status;
         acpi_size table_length;
 
-        ACPI_FUNCTION_TRACE("acpi_get_table");
+        ACPI_FUNCTION_TRACE(acpi_get_table);
 
         /* Parameter validation */
 
@@ -373,7 +376,7 @@ acpi_get_table(acpi_table_type table_type,
 
         /* Check the table type and instance */
 
-        if ((table_type > ACPI_TABLE_MAX) ||
+        if ((table_type > ACPI_TABLE_ID_MAX) ||
             (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) &&
              instance > 1)) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -396,7 +399,8 @@ acpi_get_table(acpi_table_type table_type,
 
         /* Get the table length */
 
-        if (table_type == ACPI_TABLE_RSDP) {
+        if (table_type == ACPI_TABLE_ID_RSDP) {
+
                 /* RSD PTR is the only "table" without a header */
 
                 table_length = sizeof(struct rsdp_descriptor);
@@ -417,4 +421,4 @@ acpi_get_table(acpi_table_type table_type,
         return_ACPI_STATUS(AE_OK);
 }
 
-EXPORT_SYMBOL(acpi_get_table);
+ACPI_EXPORT_SYMBOL(acpi_get_table)
diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c
index a62db6af83c9..da2648bbdbc0 100644
--- a/drivers/acpi/tables/tbxfroot.c
+++ b/drivers/acpi/tables/tbxfroot.c
@@ -41,8 +41,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/actables.h>
 
@@ -75,6 +73,7 @@ acpi_status acpi_tb_validate_rsdp(struct rsdp_descriptor *rsdp)
          *  The signature and checksum must both be correct
          */
         if (ACPI_STRNCMP((char *)rsdp, RSDP_SIG, sizeof(RSDP_SIG) - 1) != 0) {
+
                 /* Nope, BAD Signature */
 
                 return (AE_BAD_SIGNATURE);
@@ -82,15 +81,14 @@ acpi_status acpi_tb_validate_rsdp(struct rsdp_descriptor *rsdp)
 
         /* Check the standard checksum */
 
-        if (acpi_tb_generate_checksum(rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) {
+        if (acpi_tb_sum_table(rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) {
                 return (AE_BAD_CHECKSUM);
         }
 
         /* Check extended checksum if table version >= 2 */
 
         if ((rsdp->revision >= 2) &&
-            (acpi_tb_generate_checksum(rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) !=
-             0)) {
+            (acpi_tb_sum_table(rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) {
                 return (AE_BAD_CHECKSUM);
         }
 
@@ -121,7 +119,7 @@ acpi_tb_find_table(char *signature,
         acpi_status status;
         struct acpi_table_header *table;
 
-        ACPI_FUNCTION_TRACE("tb_find_table");
+        ACPI_FUNCTION_TRACE(tb_find_table);
 
         /* Validate string lengths */
 
@@ -131,7 +129,7 @@ acpi_tb_find_table(char *signature,
                 return_ACPI_STATUS(AE_AML_STRING_LIMIT);
         }
 
-        if (!ACPI_STRNCMP(signature, DSDT_SIG, ACPI_NAME_SIZE)) {
+        if (ACPI_COMPARE_NAME(signature, DSDT_SIG)) {
                 /*
                  * The DSDT pointer is contained in the FADT, not the RSDT.
                  * This code should suffice, because the only code that would perform
@@ -156,10 +154,12 @@ acpi_tb_find_table(char *signature,
 
         /* Check oem_id and oem_table_id */
 
-        if ((oem_id[0] && ACPI_STRNCMP(oem_id, table->oem_id,
-                                       sizeof(table->oem_id))) ||
-            (oem_table_id[0] && ACPI_STRNCMP(oem_table_id, table->oem_table_id,
-                                             sizeof(table->oem_table_id)))) {
+        if ((oem_id[0] &&
+             ACPI_STRNCMP(oem_id, table->oem_id,
+                          sizeof(table->oem_id))) ||
+            (oem_table_id[0] &&
+             ACPI_STRNCMP(oem_table_id, table->oem_table_id,
+                          sizeof(table->oem_table_id)))) {
                 return_ACPI_STATUS(AE_AML_NAME_NOT_FOUND);
         }
 
@@ -203,7 +203,7 @@ acpi_get_firmware_table(acpi_string signature,
         u32 i;
         u32 j;
 
-        ACPI_FUNCTION_TRACE("acpi_get_firmware_table");
+        ACPI_FUNCTION_TRACE(acpi_get_firmware_table);
 
         /*
          * Ensure that at least the table manager is initialized.  We don't
@@ -217,6 +217,7 @@ acpi_get_firmware_table(acpi_string signature,
         /* Ensure that we have a RSDP */
 
         if (!acpi_gbl_RSDP) {
+
                 /* Get the RSDP */
 
                 status = acpi_os_get_root_pointer(flags, &address);
@@ -261,7 +262,7 @@ acpi_get_firmware_table(acpi_string signature,
 
         /* Get and validate the RSDT */
 
-        rsdt_info = ACPI_MEM_CALLOCATE(sizeof(struct acpi_table_desc));
+        rsdt_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_table_desc));
         if (!rsdt_info) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
@@ -278,13 +279,13 @@ acpi_get_firmware_table(acpi_string signature,
 
         /* Allocate a scratch table header and table descriptor */
 
-        header = ACPI_MEM_ALLOCATE(sizeof(struct acpi_table_header));
+        header = ACPI_ALLOCATE(sizeof(struct acpi_table_header));
         if (!header) {
                 status = AE_NO_MEMORY;
                 goto cleanup;
         }
 
-        table_info = ACPI_MEM_ALLOCATE(sizeof(struct acpi_table_desc));
+        table_info = ACPI_ALLOCATE(sizeof(struct acpi_table_desc));
         if (!table_info) {
                 status = AE_NO_MEMORY;
                 goto cleanup;
@@ -308,12 +309,12 @@ acpi_get_firmware_table(acpi_string signature,
                 if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
                         address.pointer.value =
                             (ACPI_CAST_PTR
-                             (RSDT_DESCRIPTOR,
+                             (struct rsdt_descriptor,
                               rsdt_info->pointer))->table_offset_entry[i];
                 } else {
                         address.pointer.value =
                             (ACPI_CAST_PTR
-                             (XSDT_DESCRIPTOR,
+                             (struct xsdt_descriptor,
                               rsdt_info->pointer))->table_offset_entry[i];
                 }
 
@@ -326,11 +327,13 @@ acpi_get_firmware_table(acpi_string signature,
 
                 /* Compare table signatures and table instance */
 
-                if (!ACPI_STRNCMP(header->signature, signature, ACPI_NAME_SIZE)) {
+                if (ACPI_COMPARE_NAME(header->signature, signature)) {
+
                         /* An instance of the table was found */
 
                         j++;
                         if (j >= instance) {
+
                                 /* Found the correct instance, get the entire table */
 
                                 status =
@@ -355,23 +358,21 @@ acpi_get_firmware_table(acpi_string signature,
                 acpi_os_unmap_memory(rsdt_info->pointer,
                                      (acpi_size) rsdt_info->pointer->length);
         }
-        ACPI_MEM_FREE(rsdt_info);
+        ACPI_FREE(rsdt_info);
 
         if (header) {
-                ACPI_MEM_FREE(header);
+                ACPI_FREE(header);
         }
         if (table_info) {
-                ACPI_MEM_FREE(table_info);
+                ACPI_FREE(table_info);
         }
         return_ACPI_STATUS(status);
 }
 
-EXPORT_SYMBOL(acpi_get_firmware_table);
+ACPI_EXPORT_SYMBOL(acpi_get_firmware_table)
 
 /* TBD: Move to a new file */
-
 #if ACPI_MACHINE_WIDTH != 16
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_find_root_pointer
@@ -384,13 +385,12 @@ EXPORT_SYMBOL(acpi_get_firmware_table);
  * DESCRIPTION: Find the RSDP
  *
  ******************************************************************************/
-
 acpi_status acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address)
 {
         struct acpi_table_desc table_info;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_find_root_pointer");
+        ACPI_FUNCTION_TRACE(acpi_find_root_pointer);
 
         /* Get the RSDP */
 
@@ -407,6 +407,8 @@ acpi_status acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address)
         return_ACPI_STATUS(AE_OK);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_find_root_pointer)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_tb_scan_memory_for_rsdp
@@ -419,14 +421,13 @@ acpi_status acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address)
  * DESCRIPTION: Search a block of memory for the RSDP signature
  *
  ******************************************************************************/
-
 static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length)
 {
         acpi_status status;
         u8 *mem_rover;
         u8 *end_address;
 
-        ACPI_FUNCTION_TRACE("tb_scan_memory_for_rsdp");
+        ACPI_FUNCTION_TRACE(tb_scan_memory_for_rsdp);
 
         end_address = start_address + length;
 
@@ -434,12 +435,14 @@ static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length)
 
         for (mem_rover = start_address; mem_rover < end_address;
              mem_rover += ACPI_RSDP_SCAN_STEP) {
+
                 /* The RSDP signature and checksum must both be correct */
 
                 status =
                     acpi_tb_validate_rsdp(ACPI_CAST_PTR
                                           (struct rsdp_descriptor, mem_rover));
                 if (ACPI_SUCCESS(status)) {
+
                         /* Sig and checksum valid, we have found a real RSDP */
 
                         ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -469,10 +472,10 @@ static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length)
  *
  * RETURN:      Status, RSDP physical address
  *
- * DESCRIPTION: search lower 1_mbyte of memory for the root system descriptor
+ * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor
  *              pointer structure.  If it is found, set *RSDP to point to it.
  *
- *              NOTE1: The RSDp must be either in the first 1_k of the Extended
+ *              NOTE1: The RSDP must be either in the first 1_k of the Extended
  *              BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.)
  *              Only a 32-bit physical address is necessary.
  *
@@ -489,12 +492,13 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags)
         u32 physical_address;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("tb_find_rsdp");
+        ACPI_FUNCTION_TRACE(tb_find_rsdp);
 
         /*
          * Scan supports either logical addressing or physical addressing
          */
         if ((flags & ACPI_MEMORY_MODE) == ACPI_LOGICAL_ADDRESSING) {
+
                 /* 1a) Get the location of the Extended BIOS Data Area (EBDA) */
 
                 status = acpi_os_map_memory((acpi_physical_address)
@@ -521,7 +525,7 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags)
 
                 if (physical_address > 0x400) {
                         /*
-                         * 1b) Search EBDA paragraphs (EBDa is required to be a
+                         * 1b) Search EBDA paragraphs (EBDA is required to be a
                          *     minimum of 1_k length)
                          */
                         status = acpi_os_map_memory((acpi_physical_address)
@@ -542,10 +546,11 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags)
                         acpi_os_unmap_memory(table_ptr, ACPI_EBDA_WINDOW_SIZE);
 
                         if (mem_rover) {
+
                                 /* Return the physical address */
 
                                 physical_address +=
-                                    ACPI_PTR_DIFF(mem_rover, table_ptr);
+                                    (u32) ACPI_PTR_DIFF(mem_rover, table_ptr);
 
                                 table_info->physical_address =
                                     (acpi_physical_address) physical_address;
@@ -576,11 +581,12 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags)
                 acpi_os_unmap_memory(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE);
 
                 if (mem_rover) {
+
                         /* Return the physical address */
 
-                        physical_address =
-                            ACPI_HI_RSDP_WINDOW_BASE + ACPI_PTR_DIFF(mem_rover,
-                                                                     table_ptr);
+                        physical_address = (u32)
+                            (ACPI_HI_RSDP_WINDOW_BASE +
+                             ACPI_PTR_DIFF(mem_rover, table_ptr));
 
                         table_info->physical_address =
                             (acpi_physical_address) physical_address;
@@ -601,7 +607,7 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags)
 
                 if (physical_address > 0x400) {
                         /*
-                         * 1b) Search EBDA paragraphs (EBDa is required to be a minimum of
+                         * 1b) Search EBDA paragraphs (EBDA is required to be a minimum of
                          *     1_k length)
                          */
                         mem_rover =
@@ -609,6 +615,7 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags)
                                                          (physical_address),
                                                          ACPI_EBDA_WINDOW_SIZE);
                         if (mem_rover) {
+
                                 /* Return the physical address */
 
                                 table_info->physical_address =
@@ -624,6 +631,7 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags)
                                                  (ACPI_HI_RSDP_WINDOW_BASE),
                                                  ACPI_HI_RSDP_WINDOW_SIZE);
                 if (mem_rover) {
+
                         /* Found it, return the physical address */
 
                         table_info->physical_address =
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 19f3ea48475e..e7fe3a14fdaf 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -82,6 +82,7 @@ MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.\n");
 
 static int acpi_thermal_add(struct acpi_device *device);
 static int acpi_thermal_remove(struct acpi_device *device, int type);
+static int acpi_thermal_resume(struct acpi_device *device, int state);
 static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file);
 static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file);
 static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file);
@@ -103,6 +104,7 @@ static struct acpi_driver acpi_thermal_driver = {
         .ops = {
                 .add = acpi_thermal_add,
                 .remove = acpi_thermal_remove,
+                .resume = acpi_thermal_resume,
                 },
 };
 
@@ -684,8 +686,7 @@ static void acpi_thermal_run(unsigned long data)
 {
         struct acpi_thermal *tz = (struct acpi_thermal *)data;
         if (!tz->zombie)
-                acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
-                                            acpi_thermal_check, (void *)data);
+                acpi_os_execute(OSL_GPE_HANDLER, acpi_thermal_check, (void *)data);
 }
 
 static void acpi_thermal_check(void *data)
@@ -942,8 +943,10 @@ acpi_thermal_write_trip_points(struct file *file,
         memset(limit_string, 0, ACPI_THERMAL_MAX_LIMIT_STR_LEN);
 
         active = kmalloc(ACPI_THERMAL_MAX_ACTIVE * sizeof(int), GFP_KERNEL);
-        if (!active)
+        if (!active) {
+                kfree(limit_string);
                 return_VALUE(-ENOMEM);
+        }
 
         if (!tz || (count > ACPI_THERMAL_MAX_LIMIT_STR_LEN - 1)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid argument\n"));
@@ -1342,7 +1345,7 @@ static int acpi_thermal_add(struct acpi_device *device)
 
         result = acpi_thermal_add_fs(device);
         if (result)
-                return_VALUE(result);
+                goto end;
 
         init_timer(&tz->timer);
 
@@ -1416,6 +1419,20 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
         return_VALUE(0);
 }
 
+static int acpi_thermal_resume(struct acpi_device *device, int state)
+{
+        struct acpi_thermal *tz = NULL;
+
+        if (!device || !acpi_driver_data(device))
+                return_VALUE(-EINVAL);
+
+        tz = (struct acpi_thermal *)acpi_driver_data(device);
+
+        acpi_thermal_check(tz);
+
+        return AE_OK;
+}
+
 static int __init acpi_thermal_init(void)
 {
         int result = 0;
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index 03b0044974c2..7940fc1bd69e 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -46,24 +46,6 @@
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utalloc")
 
-/* Local prototypes */
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation);
-
-static acpi_status
-acpi_ut_track_allocation(struct acpi_debug_mem_block *address,
-                         acpi_size size,
-                         u8 alloc_type, u32 component, char *module, u32 line);
-
-static acpi_status
-acpi_ut_remove_allocation(struct acpi_debug_mem_block *address,
-                          u32 component, char *module, u32 line);
-
-static acpi_status
-acpi_ut_create_list(char *list_name,
-                    u16 object_size, struct acpi_memory_list **return_cache);
-#endif
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_create_caches
@@ -75,33 +57,23 @@ acpi_ut_create_list(char *list_name,
  * DESCRIPTION: Create all local caches
  *
  ******************************************************************************/
-
 acpi_status acpi_ut_create_caches(void)
 {
         acpi_status status;
 
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-
-        /* Memory allocation lists */
-
-        status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list);
-        if (ACPI_FAILURE(status)) {
-                return (status);
-        }
+        /* Object Caches, for frequently used objects */
 
         status =
-            acpi_ut_create_list("Acpi-Namespace",
-                                sizeof(struct acpi_namespace_node),
-                                &acpi_gbl_ns_node_list);
+            acpi_os_create_cache("Acpi-Namespace",
+                                 sizeof(struct acpi_namespace_node),
+                                 ACPI_MAX_NAMESPACE_CACHE_DEPTH,
+                                 &acpi_gbl_namespace_cache);
         if (ACPI_FAILURE(status)) {
                 return (status);
         }
-#endif
-
-        /* Object Caches, for frequently used objects */
 
         status =
-            acpi_os_create_cache("acpi_state", sizeof(union acpi_generic_state),
+            acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state),
                                  ACPI_MAX_STATE_CACHE_DEPTH,
                                  &acpi_gbl_state_cache);
         if (ACPI_FAILURE(status)) {
@@ -109,7 +81,7 @@ acpi_status acpi_ut_create_caches(void)
         }
 
         status =
-            acpi_os_create_cache("acpi_parse",
+            acpi_os_create_cache("Acpi-Parse",
                                  sizeof(struct acpi_parse_obj_common),
                                  ACPI_MAX_PARSE_CACHE_DEPTH,
                                  &acpi_gbl_ps_node_cache);
@@ -118,7 +90,7 @@ acpi_status acpi_ut_create_caches(void)
         }
 
         status =
-            acpi_os_create_cache("acpi_parse_ext",
+            acpi_os_create_cache("Acpi-ParseExt",
                                  sizeof(struct acpi_parse_obj_named),
                                  ACPI_MAX_EXTPARSE_CACHE_DEPTH,
                                  &acpi_gbl_ps_node_ext_cache);
@@ -127,7 +99,7 @@ acpi_status acpi_ut_create_caches(void)
         }
 
         status =
-            acpi_os_create_cache("acpi_operand",
+            acpi_os_create_cache("Acpi-Operand",
                                  sizeof(union acpi_operand_object),
                                  ACPI_MAX_OBJECT_CACHE_DEPTH,
                                  &acpi_gbl_operand_cache);
@@ -135,6 +107,24 @@ acpi_status acpi_ut_create_caches(void)
                 return (status);
         }
 
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+
+        /* Memory allocation lists */
+
+        status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        status =
+            acpi_ut_create_list("Acpi-Namespace",
+                                sizeof(struct acpi_namespace_node),
+                                &acpi_gbl_ns_node_list);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+#endif
+
         return (AE_OK);
 }
 
@@ -153,6 +143,9 @@ acpi_status acpi_ut_create_caches(void)
 acpi_status acpi_ut_delete_caches(void)
 {
 
+        (void)acpi_os_delete_cache(acpi_gbl_namespace_cache);
+        acpi_gbl_namespace_cache = NULL;
+
         (void)acpi_os_delete_cache(acpi_gbl_state_cache);
         acpi_gbl_state_cache = NULL;
 
@@ -165,6 +158,21 @@ acpi_status acpi_ut_delete_caches(void)
         (void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache);
         acpi_gbl_ps_node_ext_cache = NULL;
 
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+
+        /* Debug only - display leftover memory allocation, if any */
+
+        acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL);
+
+        /* Free memory lists */
+
+        acpi_os_free(acpi_gbl_global_list);
+        acpi_gbl_global_list = NULL;
+
+        acpi_os_free(acpi_gbl_ns_node_list);
+        acpi_gbl_ns_node_list = NULL;
+#endif
+
         return (AE_OK);
 }
 
@@ -252,7 +260,7 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
 
                 /* Allocate a new buffer with local interface to allow tracking */
 
-                buffer->pointer = ACPI_MEM_CALLOCATE(required_length);
+                buffer->pointer = ACPI_ALLOCATE_ZEROED(required_length);
                 if (!buffer->pointer) {
                         return (AE_NO_MEMORY);
                 }
@@ -288,7 +296,7 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
  *
  * RETURN:      Address of the allocated memory on success, NULL on failure.
  *
- * DESCRIPTION: The subsystem's equivalent of malloc.
+ * DESCRIPTION: Subsystem equivalent of malloc.
  *
  ******************************************************************************/
 
@@ -296,23 +304,23 @@ void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line)
 {
         void *allocation;
 
-        ACPI_FUNCTION_TRACE_U32("ut_allocate", size);
+        ACPI_FUNCTION_TRACE_U32(ut_allocate, size);
 
         /* Check for an inadvertent size of zero bytes */
 
         if (!size) {
-                ACPI_ERROR((module, line,
-                            "ut_allocate: Attempt to allocate zero bytes, allocating 1 byte"));
+                ACPI_WARNING((module, line,
+                              "Attempt to allocate zero bytes, allocating 1 byte"));
                 size = 1;
         }
 
         allocation = acpi_os_allocate(size);
         if (!allocation) {
+
                 /* Report allocation error */
 
-                ACPI_ERROR((module, line,
-                            "ut_allocate: Could not allocate size %X",
-                            (u32) size));
+                ACPI_WARNING((module, line,
+                              "Could not allocate size %X", (u32) size));
 
                 return_PTR(NULL);
         }
@@ -322,7 +330,7 @@ void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ut_callocate
+ * FUNCTION:    acpi_ut_allocate_zeroed
  *
  * PARAMETERS:  Size                - Size of the allocation
  *              Component           - Component type of caller
@@ -331,542 +339,24 @@ void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line)
  *
  * RETURN:      Address of the allocated memory on success, NULL on failure.
  *
- * DESCRIPTION: Subsystem equivalent of calloc.
+ * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
  *
  ******************************************************************************/
 
-void *acpi_ut_callocate(acpi_size size, u32 component, char *module, u32 line)
+void *acpi_ut_allocate_zeroed(acpi_size size,
+                              u32 component, char *module, u32 line)
 {
         void *allocation;
 
-        ACPI_FUNCTION_TRACE_U32("ut_callocate", size);
-
-        /* Check for an inadvertent size of zero bytes */
-
-        if (!size) {
-                ACPI_ERROR((module, line,
-                            "Attempt to allocate zero bytes, allocating 1 byte"));
-                size = 1;
-        }
-
-        allocation = acpi_os_allocate(size);
-        if (!allocation) {
-                /* Report allocation error */
-
-                ACPI_ERROR((module, line,
-                            "Could not allocate size %X", (u32) size));
-                return_PTR(NULL);
-        }
-
-        /* Clear the memory block */
-
-        ACPI_MEMSET(allocation, 0, size);
-        return_PTR(allocation);
-}
-
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-/*
- * These procedures are used for tracking memory leaks in the subsystem, and
- * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set.
- *
- * Each memory allocation is tracked via a doubly linked list.  Each
- * element contains the caller's component, module name, function name, and
- * line number.  acpi_ut_allocate and acpi_ut_callocate call
- * acpi_ut_track_allocation to add an element to the list; deletion
- * occurs in the body of acpi_ut_free.
- */
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_create_list
- *
- * PARAMETERS:  cache_name      - Ascii name for the cache
- *              object_size     - Size of each cached object
- *              return_cache    - Where the new cache object is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Create a local memory list for tracking purposed
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_create_list(char *list_name,
-                    u16 object_size, struct acpi_memory_list **return_cache)
-{
-        struct acpi_memory_list *cache;
-
-        cache = acpi_os_allocate(sizeof(struct acpi_memory_list));
-        if (!cache) {
-                return (AE_NO_MEMORY);
-        }
-
-        ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
-
-        cache->list_name = list_name;
-        cache->object_size = object_size;
-
-        *return_cache = cache;
-        return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_allocate_and_track
- *
- * PARAMETERS:  Size                - Size of the allocation
- *              Component           - Component type of caller
- *              Module              - Source file name of caller
- *              Line                - Line number of caller
- *
- * RETURN:      Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: The subsystem's equivalent of malloc.
- *
- ******************************************************************************/
-
-void *acpi_ut_allocate_and_track(acpi_size size,
-                                 u32 component, char *module, u32 line)
-{
-        struct acpi_debug_mem_block *allocation;
-        acpi_status status;
-
-        allocation =
-            acpi_ut_allocate(size + sizeof(struct acpi_debug_mem_header),
-                             component, module, line);
-        if (!allocation) {
-                return (NULL);
-        }
-
-        status = acpi_ut_track_allocation(allocation, size,
-                                          ACPI_MEM_MALLOC, component, module,
-                                          line);
-        if (ACPI_FAILURE(status)) {
-                acpi_os_free(allocation);
-                return (NULL);
-        }
-
-        acpi_gbl_global_list->total_allocated++;
-        acpi_gbl_global_list->current_total_size += (u32) size;
-
-        return ((void *)&allocation->user_space);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_callocate_and_track
- *
- * PARAMETERS:  Size                - Size of the allocation
- *              Component           - Component type of caller
- *              Module              - Source file name of caller
- *              Line                - Line number of caller
- *
- * RETURN:      Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: Subsystem equivalent of calloc.
- *
- ******************************************************************************/
-
-void *acpi_ut_callocate_and_track(acpi_size size,
-                                  u32 component, char *module, u32 line)
-{
-        struct acpi_debug_mem_block *allocation;
-        acpi_status status;
-
-        allocation =
-            acpi_ut_callocate(size + sizeof(struct acpi_debug_mem_header),
-                              component, module, line);
-        if (!allocation) {
-                /* Report allocation error */
-
-                ACPI_ERROR((module, line,
-                            "Could not allocate size %X", (u32) size));
-                return (NULL);
-        }
-
-        status = acpi_ut_track_allocation(allocation, size,
-                                          ACPI_MEM_CALLOC, component, module,
-                                          line);
-        if (ACPI_FAILURE(status)) {
-                acpi_os_free(allocation);
-                return (NULL);
-        }
-
-        acpi_gbl_global_list->total_allocated++;
-        acpi_gbl_global_list->current_total_size += (u32) size;
-
-        return ((void *)&allocation->user_space);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_free_and_track
- *
- * PARAMETERS:  Allocation          - Address of the memory to deallocate
- *              Component           - Component type of caller
- *              Module              - Source file name of caller
- *              Line                - Line number of caller
- *
- * RETURN:      None
- *
- * DESCRIPTION: Frees the memory at Allocation
- *
- ******************************************************************************/
-
-void
-acpi_ut_free_and_track(void *allocation, u32 component, char *module, u32 line)
-{
-        struct acpi_debug_mem_block *debug_block;
-        acpi_status status;
-
-        ACPI_FUNCTION_TRACE_PTR("ut_free", allocation);
-
-        if (NULL == allocation) {
-                ACPI_ERROR((module, line, "Attempt to delete a NULL address"));
-
-                return_VOID;
-        }
-
-        debug_block = ACPI_CAST_PTR(struct acpi_debug_mem_block,
-                                    (((char *)allocation) -
-                                     sizeof(struct acpi_debug_mem_header)));
-
-        acpi_gbl_global_list->total_freed++;
-        acpi_gbl_global_list->current_total_size -= debug_block->size;
-
-        status = acpi_ut_remove_allocation(debug_block,
-                                           component, module, line);
-        if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status, "Could not free memory"));
-        }
-
-        acpi_os_free(debug_block);
-        ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed\n", allocation));
-        return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_find_allocation
- *
- * PARAMETERS:  Allocation              - Address of allocated memory
- *
- * RETURN:      A list element if found; NULL otherwise.
- *
- * DESCRIPTION: Searches for an element in the global allocation tracking list.
- *
- ******************************************************************************/
-
-static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation)
-{
-        struct acpi_debug_mem_block *element;
-
         ACPI_FUNCTION_ENTRY();
 
-        element = acpi_gbl_global_list->list_head;
-
-        /* Search for the address. */
-
-        while (element) {
-                if (element == allocation) {
-                        return (element);
-                }
-
-                element = element->next;
-        }
-
-        return (NULL);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_track_allocation
- *
- * PARAMETERS:  Allocation          - Address of allocated memory
- *              Size                - Size of the allocation
- *              alloc_type          - MEM_MALLOC or MEM_CALLOC
- *              Component           - Component type of caller
- *              Module              - Source file name of caller
- *              Line                - Line number of caller
- *
- * RETURN:      None.
- *
- * DESCRIPTION: Inserts an element into the global allocation tracking list.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation,
-                         acpi_size size,
-                         u8 alloc_type, u32 component, char *module, u32 line)
-{
-        struct acpi_memory_list *mem_list;
-        struct acpi_debug_mem_block *element;
-        acpi_status status = AE_OK;
-
-        ACPI_FUNCTION_TRACE_PTR("ut_track_allocation", allocation);
-
-        mem_list = acpi_gbl_global_list;
-        status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY);
-        if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
-        }
-
-        /*
-         * Search list for this address to make sure it is not already on the list.
-         * This will catch several kinds of problems.
-         */
-        element = acpi_ut_find_allocation(allocation);
-        if (element) {
-                ACPI_ERROR((AE_INFO,
-                            "ut_track_allocation: Allocation already present in list! (%p)",
-                            allocation));
-
-                ACPI_ERROR((AE_INFO, "Element %p Address %p",
-                            element, allocation));
-
-                goto unlock_and_exit;
-        }
-
-        /* Fill in the instance data. */
-
-        allocation->size = (u32) size;
-        allocation->alloc_type = alloc_type;
-        allocation->component = component;
-        allocation->line = line;
-
-        ACPI_STRNCPY(allocation->module, module, ACPI_MAX_MODULE_NAME);
-        allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0;
-
-        /* Insert at list head */
-
-        if (mem_list->list_head) {
-                ((struct acpi_debug_mem_block *)(mem_list->list_head))->
-                    previous = allocation;
-        }
-
-        allocation->next = mem_list->list_head;
-        allocation->previous = NULL;
-
-        mem_list->list_head = allocation;
-
-      unlock_and_exit:
-        status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
-        return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_remove_allocation
- *
- * PARAMETERS:  Allocation          - Address of allocated memory
- *              Component           - Component type of caller
- *              Module              - Source file name of caller
- *              Line                - Line number of caller
- *
- * RETURN:
- *
- * DESCRIPTION: Deletes an element from the global allocation tracking list.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation,
-                          u32 component, char *module, u32 line)
-{
-        struct acpi_memory_list *mem_list;
-        acpi_status status;
-
-        ACPI_FUNCTION_TRACE("ut_remove_allocation");
-
-        mem_list = acpi_gbl_global_list;
-        if (NULL == mem_list->list_head) {
-                /* No allocations! */
-
-                ACPI_ERROR((module, line,
-                            "Empty allocation list, nothing to free!"));
-
-                return_ACPI_STATUS(AE_OK);
-        }
-
-        status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY);
-        if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
-        }
-
-        /* Unlink */
-
-        if (allocation->previous) {
-                (allocation->previous)->next = allocation->next;
-        } else {
-                mem_list->list_head = allocation->next;
-        }
-
-        if (allocation->next) {
-                (allocation->next)->previous = allocation->previous;
-        }
-
-        /* Mark the segment as deleted */
-
-        ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size);
-
-        ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing size 0%X\n",
-                          allocation->size));
+        allocation = acpi_ut_allocate(size, component, module, line);
+        if (allocation) {
 
-        status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
-        return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_dump_allocation_info
- *
- * PARAMETERS:
- *
- * RETURN:      None
- *
- * DESCRIPTION: Print some info about the outstanding allocations.
- *
- ******************************************************************************/
+                /* Clear the memory block */
 
-#ifdef ACPI_FUTURE_USAGE
-void acpi_ut_dump_allocation_info(void)
-{
-/*
-        struct acpi_memory_list         *mem_list;
-*/
-
-        ACPI_FUNCTION_TRACE("ut_dump_allocation_info");
-
-/*
-        ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-                          ("%30s: %4d (%3d Kb)\n", "Current allocations",
-                          mem_list->current_count,
-                          ROUND_UP_TO_1K (mem_list->current_size)));
-
-        ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-                          ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
-                          mem_list->max_concurrent_count,
-                          ROUND_UP_TO_1K (mem_list->max_concurrent_size)));
-
-        ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-                          ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
-                          running_object_count,
-                          ROUND_UP_TO_1K (running_object_size)));
-
-        ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-                          ("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
-                          running_alloc_count,
-                          ROUND_UP_TO_1K (running_alloc_size)));
-
-        ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-                          ("%30s: %4d (%3d Kb)\n", "Current Nodes",
-                          acpi_gbl_current_node_count,
-                          ROUND_UP_TO_1K (acpi_gbl_current_node_size)));
-
-        ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-                          ("%30s: %4d (%3d Kb)\n", "Max Nodes",
-                          acpi_gbl_max_concurrent_node_count,
-                          ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count *
-                                         sizeof (struct acpi_namespace_node)))));
-*/
-        return_VOID;
-}
-#endif                          /*  ACPI_FUTURE_USAGE  */
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_dump_allocations
- *
- * PARAMETERS:  Component           - Component(s) to dump info for.
- *              Module              - Module to dump info for.  NULL means all.
- *
- * RETURN:      None
- *
- * DESCRIPTION: Print a list of all outstanding allocations.
- *
- ******************************************************************************/
-
-void acpi_ut_dump_allocations(u32 component, char *module)
-{
-        struct acpi_debug_mem_block *element;
-        union acpi_descriptor *descriptor;
-        u32 num_outstanding = 0;
-
-        ACPI_FUNCTION_TRACE("ut_dump_allocations");
-
-        /*
-         * Walk the allocation list.
-         */
-        if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_MEMORY))) {
-                return;
+                ACPI_MEMSET(allocation, 0, size);
         }
 
-        element = acpi_gbl_global_list->list_head;
-        while (element) {
-                if ((element->component & component) &&
-                    ((module == NULL)
-                     || (0 == ACPI_STRCMP(module, element->module)))) {
-                        /* Ignore allocated objects that are in a cache */
-
-                        descriptor =
-                            ACPI_CAST_PTR(union acpi_descriptor,
-                                          &element->user_space);
-                        if (descriptor->descriptor_id != ACPI_DESC_TYPE_CACHED) {
-                                acpi_os_printf("%p Len %04X %9.9s-%d [%s] ",
-                                               descriptor, element->size,
-                                               element->module, element->line,
-                                               acpi_ut_get_descriptor_name
-                                               (descriptor));
-
-                                /* Most of the elements will be Operand objects. */
-
-                                switch (ACPI_GET_DESCRIPTOR_TYPE(descriptor)) {
-                                case ACPI_DESC_TYPE_OPERAND:
-                                        acpi_os_printf("%12.12s R%hd",
-                                                       acpi_ut_get_type_name
-                                                       (descriptor->object.
-                                                        common.type),
-                                                       descriptor->object.
-                                                       common.reference_count);
-                                        break;
-
-                                case ACPI_DESC_TYPE_PARSER:
-                                        acpi_os_printf("aml_opcode %04hX",
-                                                       descriptor->op.asl.
-                                                       aml_opcode);
-                                        break;
-
-                                case ACPI_DESC_TYPE_NAMED:
-                                        acpi_os_printf("%4.4s",
-                                                       acpi_ut_get_node_name
-                                                       (&descriptor->node));
-                                        break;
-
-                                default:
-                                        break;
-                                }
-
-                                acpi_os_printf("\n");
-                                num_outstanding++;
-                        }
-                }
-                element = element->next;
-        }
-
-        (void)acpi_ut_release_mutex(ACPI_MTX_MEMORY);
-
-        /* Print summary */
-
-        if (!num_outstanding) {
-                ACPI_INFO((AE_INFO, "No outstanding allocations"));
-        } else {
-                ACPI_ERROR((AE_INFO,
-                            "%d(%X) Outstanding allocations",
-                            num_outstanding, num_outstanding));
-        }
-
-        return_VOID;
+        return (allocation);
 }
-
-#endif                          /* #ifdef ACPI_DBG_TRACK_ALLOCATIONS */
diff --git a/drivers/acpi/utilities/utcache.c b/drivers/acpi/utilities/utcache.c
index 2177cb1ef2c4..56270a30718a 100644
--- a/drivers/acpi/utilities/utcache.c
+++ b/drivers/acpi/utilities/utcache.c
@@ -118,13 +118,14 @@ acpi_status acpi_os_purge_cache(struct acpi_memory_list * cache)
         /* Walk the list of objects in this cache */
 
         while (cache->list_head) {
+
                 /* Delete and unlink one cached state object */
 
                 next = *(ACPI_CAST_INDIRECT_PTR(char,
                                                 &(((char *)cache->
                                                    list_head)[cache->
                                                               link_offset])));
-                ACPI_MEM_FREE(cache->list_head);
+                ACPI_FREE(cache->list_head);
 
                 cache->list_head = next;
                 cache->current_depth--;
@@ -193,7 +194,7 @@ acpi_os_release_object(struct acpi_memory_list * cache, void *object)
         /* If cache is full, just free this object */
 
         if (cache->current_depth >= cache->max_depth) {
-                ACPI_MEM_FREE(object);
+                ACPI_FREE(object);
                 ACPI_MEM_TRACKING(cache->total_freed++);
         }
 
@@ -243,7 +244,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache)
         acpi_status status;
         void *object;
 
-        ACPI_FUNCTION_NAME("os_acquire_object");
+        ACPI_FUNCTION_NAME(os_acquire_object);
 
         if (!cache) {
                 return (NULL);
@@ -259,6 +260,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache)
         /* Check the cache first */
 
         if (cache->list_head) {
+
                 /* There is an object available, use it */
 
                 object = cache->list_head;
@@ -270,9 +272,9 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache)
                 cache->current_depth--;
 
                 ACPI_MEM_TRACKING(cache->hits++);
-                ACPI_MEM_TRACKING(ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                                    "Object %p from %s cache\n",
-                                                    object, cache->list_name)));
+                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                  "Object %p from %s cache\n", object,
+                                  cache->list_name));
 
                 status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
                 if (ACPI_FAILURE(status)) {
@@ -287,14 +289,14 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache)
 
                 ACPI_MEM_TRACKING(cache->total_allocated++);
 
-                /* Avoid deadlock with ACPI_MEM_CALLOCATE */
+                /* Avoid deadlock with ACPI_ALLOCATE_ZEROED */
 
                 status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
                 if (ACPI_FAILURE(status)) {
                         return (NULL);
                 }
 
-                object = ACPI_MEM_CALLOCATE(cache->object_size);
+                object = ACPI_ALLOCATE_ZEROED(cache->object_size);
                 if (!object) {
                         return (NULL);
                 }
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c
index df2d32096b72..5e1a80d1bc36 100644
--- a/drivers/acpi/utilities/utcopy.c
+++ b/drivers/acpi/utilities/utcopy.c
@@ -109,7 +109,7 @@ acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ut_copy_isimple_to_esimple");
+        ACPI_FUNCTION_TRACE(ut_copy_isimple_to_esimple);
 
         *buffer_space_used = 0;
 
@@ -325,7 +325,7 @@ acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
         acpi_status status;
         struct acpi_pkg_info info;
 
-        ACPI_FUNCTION_TRACE("ut_copy_ipackage_to_epackage");
+        ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_epackage);
 
         /*
          * First package at head of the buffer
@@ -383,7 +383,7 @@ acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *internal_object,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ut_copy_iobject_to_eobject");
+        ACPI_FUNCTION_TRACE(ut_copy_iobject_to_eobject);
 
         if (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE) {
                 /*
@@ -442,7 +442,7 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
 {
         union acpi_operand_object *internal_object;
 
-        ACPI_FUNCTION_TRACE("ut_copy_esimple_to_isimple");
+        ACPI_FUNCTION_TRACE(ut_copy_esimple_to_isimple);
 
         /*
          * Simple types supported are: String, Buffer, Integer
@@ -472,8 +472,8 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
         case ACPI_TYPE_STRING:
 
                 internal_object->string.pointer =
-                    ACPI_MEM_CALLOCATE((acpi_size) external_object->string.
-                                       length + 1);
+                    ACPI_ALLOCATE_ZEROED((acpi_size) external_object->string.
+                                         length + 1);
                 if (!internal_object->string.pointer) {
                         goto error_exit;
                 }
@@ -488,7 +488,7 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
         case ACPI_TYPE_BUFFER:
 
                 internal_object->buffer.pointer =
-                    ACPI_MEM_CALLOCATE(external_object->buffer.length);
+                    ACPI_ALLOCATE_ZEROED(external_object->buffer.length);
                 if (!internal_object->buffer.pointer) {
                         goto error_exit;
                 }
@@ -552,7 +552,7 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_operand_object *internal_object,
         union acpi_operand_object *this_internal_obj;
         union acpi_object *this_external_obj;
 
-        ACPI_FUNCTION_TRACE("ut_copy_epackage_to_ipackage");
+        ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage);
 
         /*
          * First package at head of the buffer
@@ -600,7 +600,7 @@ acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object,
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ut_copy_eobject_to_iobject");
+        ACPI_FUNCTION_TRACE(ut_copy_eobject_to_iobject);
 
         if (external_object->type == ACPI_TYPE_PACKAGE) {
                 /*
@@ -676,7 +676,7 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
                 if ((source_desc->buffer.pointer) &&
                     (source_desc->buffer.length)) {
                         dest_desc->buffer.pointer =
-                            ACPI_MEM_ALLOCATE(source_desc->buffer.length);
+                            ACPI_ALLOCATE(source_desc->buffer.length);
                         if (!dest_desc->buffer.pointer) {
                                 return (AE_NO_MEMORY);
                         }
@@ -697,8 +697,8 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
                  */
                 if (source_desc->string.pointer) {
                         dest_desc->string.pointer =
-                            ACPI_MEM_ALLOCATE((acpi_size) source_desc->string.
-                                              length + 1);
+                            ACPI_ALLOCATE((acpi_size) source_desc->string.
+                                          length + 1);
                         if (!dest_desc->string.pointer) {
                                 return (AE_NO_MEMORY);
                         }
@@ -805,9 +805,7 @@ acpi_ut_copy_ielement_to_ielement(u8 object_type,
                 /*
                  * Create the object array
                  */
-                target_object->package.elements =
-                    ACPI_MEM_CALLOCATE(((acpi_size) source_object->package.
-                                        count + 1) * sizeof(void *));
+                target_object->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) source_object->package.count + 1) * sizeof(void *));
                 if (!target_object->package.elements) {
                         status = AE_NO_MEMORY;
                         goto error_exit;
@@ -856,7 +854,7 @@ acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ut_copy_ipackage_to_ipackage");
+        ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_ipackage);
 
         dest_obj->common.type = ACPI_GET_OBJECT_TYPE(source_obj);
         dest_obj->common.flags = source_obj->common.flags;
@@ -865,10 +863,10 @@ acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
         /*
          * Create the object array and walk the source package tree
          */
-        dest_obj->package.elements = ACPI_MEM_CALLOCATE(((acpi_size)
-                                                         source_obj->package.
-                                                         count +
-                                                         1) * sizeof(void *));
+        dest_obj->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
+                                                           source_obj->package.
+                                                           count +
+                                                           1) * sizeof(void *));
         if (!dest_obj->package.elements) {
                 ACPI_ERROR((AE_INFO, "Package allocation failure"));
                 return_ACPI_STATUS(AE_NO_MEMORY);
@@ -882,6 +880,7 @@ acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
                                            acpi_ut_copy_ielement_to_ielement,
                                            walk_state);
         if (ACPI_FAILURE(status)) {
+
                 /* On failure, delete the destination package object */
 
                 acpi_ut_remove_reference(dest_obj);
@@ -911,7 +910,7 @@ acpi_ut_copy_iobject_to_iobject(union acpi_operand_object *source_desc,
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("ut_copy_iobject_to_iobject");
+        ACPI_FUNCTION_TRACE(ut_copy_iobject_to_iobject);
 
         /* Create the top level object */
 
diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index 35f3d581e034..5ec1cfcc611d 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -41,8 +41,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 
 #define _COMPONENT          ACPI_UTILITIES
@@ -123,12 +121,14 @@ static const char *acpi_ut_trim_function_name(const char *function_name)
         /* All Function names are longer than 4 chars, check is safe */
 
         if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) {
+
                 /* This is the case where the original source has not been modified */
 
                 return (function_name + 4);
         }
 
         if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) {
+
                 /* This is the case where the source has been 'linuxized' */
 
                 return (function_name + 5);
@@ -162,7 +162,7 @@ acpi_ut_debug_print(u32 requested_debug_level,
                     const char *function_name,
                     char *module_name, u32 component_id, char *format, ...)
 {
-        u32 thread_id;
+        acpi_thread_id thread_id;
         va_list args;
 
         /*
@@ -177,7 +177,6 @@ acpi_ut_debug_print(u32 requested_debug_level,
          * Thread tracking and context switch notification
          */
         thread_id = acpi_os_get_thread_id();
-
         if (thread_id != acpi_gbl_prev_thread_id) {
                 if (ACPI_LV_THREADS & acpi_dbg_level) {
                         acpi_os_printf
@@ -206,7 +205,7 @@ acpi_ut_debug_print(u32 requested_debug_level,
         acpi_os_vprintf(format, args);
 }
 
-EXPORT_SYMBOL(acpi_ut_debug_print);
+ACPI_EXPORT_SYMBOL(acpi_ut_debug_print)
 
 /*******************************************************************************
  *
@@ -226,7 +225,6 @@ EXPORT_SYMBOL(acpi_ut_debug_print);
  *              debug_print so that the same macros can be used.
  *
  ******************************************************************************/
-
 void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_debug_print_raw(u32 requested_debug_level,
                         u32 line_number,
@@ -244,7 +242,7 @@ acpi_ut_debug_print_raw(u32 requested_debug_level,
         acpi_os_vprintf(format, args);
 }
 
-EXPORT_SYMBOL(acpi_ut_debug_print_raw);
+ACPI_EXPORT_SYMBOL(acpi_ut_debug_print_raw)
 
 /*******************************************************************************
  *
@@ -261,7 +259,6 @@ EXPORT_SYMBOL(acpi_ut_debug_print_raw);
  *              set in debug_level
  *
  ******************************************************************************/
-
 void
 acpi_ut_trace(u32 line_number,
               const char *function_name, char *module_name, u32 component_id)
@@ -275,7 +272,7 @@ acpi_ut_trace(u32 line_number,
                             component_id, "%s\n", acpi_gbl_fn_entry_str);
 }
 
-EXPORT_SYMBOL(acpi_ut_trace);
+ACPI_EXPORT_SYMBOL(acpi_ut_trace)
 
 /*******************************************************************************
  *
@@ -293,7 +290,6 @@ EXPORT_SYMBOL(acpi_ut_trace);
  *              set in debug_level
  *
  ******************************************************************************/
-
 void
 acpi_ut_trace_ptr(u32 line_number,
                   const char *function_name,
@@ -400,7 +396,7 @@ acpi_ut_exit(u32 line_number,
         acpi_gbl_nesting_level--;
 }
 
-EXPORT_SYMBOL(acpi_ut_exit);
+ACPI_EXPORT_SYMBOL(acpi_ut_exit)
 
 /*******************************************************************************
  *
@@ -418,7 +414,6 @@ EXPORT_SYMBOL(acpi_ut_exit);
  *              set in debug_level. Prints exit status also.
  *
  ******************************************************************************/
-
 void
 acpi_ut_status_exit(u32 line_number,
                     const char *function_name,
@@ -442,7 +437,7 @@ acpi_ut_status_exit(u32 line_number,
         acpi_gbl_nesting_level--;
 }
 
-EXPORT_SYMBOL(acpi_ut_status_exit);
+ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
 
 /*******************************************************************************
  *
@@ -460,7 +455,6 @@ EXPORT_SYMBOL(acpi_ut_status_exit);
  *              set in debug_level. Prints exit value also.
  *
  ******************************************************************************/
-
 void
 acpi_ut_value_exit(u32 line_number,
                    const char *function_name,
@@ -475,7 +469,7 @@ acpi_ut_value_exit(u32 line_number,
         acpi_gbl_nesting_level--;
 }
 
-EXPORT_SYMBOL(acpi_ut_value_exit);
+ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
 
 /*******************************************************************************
  *
@@ -493,7 +487,6 @@ EXPORT_SYMBOL(acpi_ut_value_exit);
  *              set in debug_level. Prints exit value also.
  *
  ******************************************************************************/
-
 void
 acpi_ut_ptr_exit(u32 line_number,
                  const char *function_name,
@@ -524,20 +517,13 @@ acpi_ut_ptr_exit(u32 line_number,
  *
  ******************************************************************************/
 
-void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id)
+void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
 {
         acpi_native_uint i = 0;
         acpi_native_uint j;
         u32 temp32;
         u8 buf_char;
 
-        /* Only dump the buffer if tracing is enabled */
-
-        if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
-              (component_id & acpi_dbg_layer))) {
-                return;
-        }
-
         if ((count < 4) || (count & 0x01)) {
                 display = DB_BYTE_DISPLAY;
         }
@@ -545,6 +531,7 @@ void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id)
         /* Nasty little dump buffer routine! */
 
         while (i < count) {
+
                 /* Print current offset */
 
                 acpi_os_printf("%6.4X: ", (u32) i);
@@ -553,6 +540,7 @@ void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id)
 
                 for (j = 0; j < 16;) {
                         if (i + j >= count) {
+
                                 /* Dump fill spaces */
 
                                 acpi_os_printf("%*s", ((display * 2) + 1), " ");
@@ -561,6 +549,7 @@ void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id)
                         }
 
                         switch (display) {
+                        case DB_BYTE_DISPLAY:
                         default:        /* Default is BYTE display */
 
                                 acpi_os_printf("%02X ", buffer[i + j]);
@@ -618,3 +607,31 @@ void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id)
 
         return;
 }
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_dump_buffer
+ *
+ * PARAMETERS:  Buffer              - Buffer to dump
+ *              Count               - Amount to dump, in bytes
+ *              Display             - BYTE, WORD, DWORD, or QWORD display
+ *              component_iD        - Caller's component ID
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Generic dump buffer in both hex and ascii.
+ *
+ ******************************************************************************/
+
+void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id)
+{
+
+        /* Only dump the buffer if tracing is enabled */
+
+        if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
+              (component_id & acpi_dbg_layer))) {
+                return;
+        }
+
+        acpi_ut_dump_buffer2(buffer, count, display);
+}
diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c
index 1db9695b0029..67b9f325c6fa 100644
--- a/drivers/acpi/utilities/utdelete.c
+++ b/drivers/acpi/utilities/utdelete.c
@@ -76,7 +76,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
         union acpi_operand_object *second_desc;
         union acpi_operand_object *next_desc;
 
-        ACPI_FUNCTION_TRACE_PTR("ut_delete_internal_obj", object);
+        ACPI_FUNCTION_TRACE_PTR(ut_delete_internal_obj, object);
 
         if (!object) {
                 return_VOID;
@@ -96,6 +96,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
                 /* Free the actual string buffer */
 
                 if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) {
+
                         /* But only if it is NOT a pointer into an ACPI table */
 
                         obj_pointer = object->string.pointer;
@@ -111,6 +112,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
                 /* Free the actual buffer */
 
                 if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) {
+
                         /* But only if it is NOT a pointer into an ACPI table */
 
                         obj_pointer = object->buffer.pointer;
@@ -198,11 +200,22 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
                          */
                         handler_desc = object->region.handler;
                         if (handler_desc) {
-                                if (handler_desc->address_space.
-                                    hflags &
+                                if (handler_desc->address_space.handler_flags &
                                     ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) {
-                                        obj_pointer =
-                                            second_desc->extra.region_context;
+
+                                        /* Deactivate region and free region context */
+
+                                        if (handler_desc->address_space.setup) {
+                                                (void)handler_desc->
+                                                    address_space.setup(object,
+                                                                        ACPI_REGION_DEACTIVATE,
+                                                                        handler_desc->
+                                                                        address_space.
+                                                                        context,
+                                                                        &second_desc->
+                                                                        extra.
+                                                                        region_context);
+                                        }
                                 }
 
                                 acpi_ut_remove_reference(handler_desc);
@@ -234,7 +247,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
         if (obj_pointer) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
                                   "Deleting Object Subptr %p\n", obj_pointer));
-                ACPI_MEM_FREE(obj_pointer);
+                ACPI_FREE(obj_pointer);
         }
 
         /* Now the object can be safely deleted */
@@ -263,7 +276,7 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list)
 {
         union acpi_operand_object **internal_obj;
 
-        ACPI_FUNCTION_TRACE("ut_delete_internal_object_list");
+        ACPI_FUNCTION_TRACE(ut_delete_internal_object_list);
 
         /* Walk the null-terminated internal list */
 
@@ -273,7 +286,7 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list)
 
         /* Free the combined parameter pointer list and object array */
 
-        ACPI_MEM_FREE(obj_list);
+        ACPI_FREE(obj_list);
         return_VOID;
 }
 
@@ -296,7 +309,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
         u16 count;
         u16 new_count;
 
-        ACPI_FUNCTION_NAME("ut_update_ref_count");
+        ACPI_FUNCTION_NAME(ut_update_ref_count);
 
         if (!object) {
                 return;
@@ -306,11 +319,9 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
         new_count = count;
 
         /*
-         * Perform the reference count action
-         * (increment, decrement, or force delete)
+         * Perform the reference count action (increment, decrement, force delete)
          */
         switch (action) {
-
         case REF_INCREMENT:
 
                 new_count++;
@@ -347,7 +358,6 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
                 if (new_count == 0) {
                         acpi_ut_delete_internal_obj(object);
                 }
-
                 break;
 
         case REF_FORCE_DELETE:
@@ -372,13 +382,10 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
          * (A deleted object will have a huge reference count)
          */
         if (count > ACPI_MAX_REFERENCE_COUNT) {
-
                 ACPI_WARNING((AE_INFO,
-                              "Large Reference Count (%X) in object %p",
-                              count, object));
+                              "Large Reference Count (%X) in object %p", count,
+                              object));
         }
-
-        return;
 }
 
 /*******************************************************************************
@@ -404,7 +411,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
  ******************************************************************************/
 
 acpi_status
-acpi_ut_update_object_reference(union acpi_operand_object * object, u16 action)
+acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 {
         acpi_status status = AE_OK;
         union acpi_generic_state *state_list = NULL;
@@ -412,9 +419,10 @@ acpi_ut_update_object_reference(union acpi_operand_object * object, u16 action)
         union acpi_generic_state *state;
         acpi_native_uint i;
 
-        ACPI_FUNCTION_TRACE_PTR("ut_update_object_reference", object);
+        ACPI_FUNCTION_TRACE_PTR(ut_update_object_reference, object);
 
         while (object) {
+
                 /* Make sure that this isn't a namespace handle */
 
                 if (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) {
@@ -507,11 +515,11 @@ acpi_ut_update_object_reference(union acpi_operand_object * object, u16 action)
 
                 case ACPI_TYPE_REGION:
                 default:
-                        break;  /* No subobjects */
+                        break;  /* No subobjects for all other types */
                 }
 
                 /*
-                 * Now we can update the count in the main object.  This can only
+                 * Now we can update the count in the main object. This can only
                  * happen after we update the sub-objects in case this causes the
                  * main object to be deleted.
                  */
@@ -556,7 +564,7 @@ acpi_ut_update_object_reference(union acpi_operand_object * object, u16 action)
 void acpi_ut_add_reference(union acpi_operand_object *object)
 {
 
-        ACPI_FUNCTION_TRACE_PTR("ut_add_reference", object);
+        ACPI_FUNCTION_TRACE_PTR(ut_add_reference, object);
 
         /* Ensure that we have a valid object */
 
@@ -589,11 +597,11 @@ void acpi_ut_add_reference(union acpi_operand_object *object)
 void acpi_ut_remove_reference(union acpi_operand_object *object)
 {
 
-        ACPI_FUNCTION_TRACE_PTR("ut_remove_reference", object);
+        ACPI_FUNCTION_TRACE_PTR(ut_remove_reference, object);
 
         /*
-         * Allow a NULL pointer to be passed in, just ignore it.  This saves
-         * each caller from having to check.  Also, ignore NS nodes.
+         * Allow a NULL pointer to be passed in, just ignore it. This saves
+         * each caller from having to check. Also, ignore NS nodes.
          *
          */
         if (!object ||
@@ -613,7 +621,7 @@ void acpi_ut_remove_reference(union acpi_operand_object *object)
 
         /*
          * Decrement the reference count, and only actually delete the object
-         * if the reference count becomes 0.  (Must also decrement the ref count
+         * if the reference count becomes 0. (Must also decrement the ref count
          * of all subobjects!)
          */
         (void)acpi_ut_update_object_reference(object, REF_DECREMENT);
diff --git a/drivers/acpi/utilities/uteval.c b/drivers/acpi/utilities/uteval.c
index 106cc97cb4af..d6d7121583c0 100644
--- a/drivers/acpi/utilities/uteval.c
+++ b/drivers/acpi/utilities/uteval.c
@@ -56,6 +56,34 @@ static acpi_status
 acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
                           struct acpi_compatible_id *one_cid);
 
+/*
+ * Strings supported by the _OSI predefined (internal) method.
+ */
+static const char *acpi_interfaces_supported[] = {
+        /* Operating System Vendor Strings */
+
+        "Linux",
+        "Windows 2000",
+        "Windows 2001",
+        "Windows 2001 SP0",
+        "Windows 2001 SP1",
+        "Windows 2001 SP2",
+        "Windows 2001 SP3",
+        "Windows 2001 SP4",
+        "Windows 2001.1",
+        "Windows 2001.1 SP1",   /* Added 03/2006 */
+        "Windows 2006",         /* Added 03/2006 */
+
+        /* Feature Group Strings */
+
+        "Extended Address Space Descriptor"
+            /*
+             * All "optional" feature group strings (features that are implemented
+             * by the host) should be implemented in the host version of
+             * acpi_os_validate_interface and should not be added here.
+             */
+};
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_osi_implementation
@@ -64,18 +92,18 @@ acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Implementation of _OSI predefined control method
- *              Supported = _OSI (String)
+ * DESCRIPTION: Implementation of the _OSI predefined control method
  *
  ******************************************************************************/
 
 acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
 {
+        acpi_status status;
         union acpi_operand_object *string_desc;
         union acpi_operand_object *return_desc;
         acpi_native_uint i;
 
-        ACPI_FUNCTION_TRACE("ut_osi_implementation");
+        ACPI_FUNCTION_TRACE(ut_osi_implementation);
 
         /* Validate the string input argument */
 
@@ -84,28 +112,47 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
                 return_ACPI_STATUS(AE_TYPE);
         }
 
-        /* Create a return object (Default value = 0) */
+        /* Create a return object */
 
         return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
         if (!return_desc) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
 
-        /* Compare input string to table of supported strings */
+        /* Default return value is SUPPORTED */
+
+        return_desc->integer.value = ACPI_UINT32_MAX;
+        walk_state->return_desc = return_desc;
+
+        /* Compare input string to static table of supported interfaces */
 
-        for (i = 0; i < ACPI_NUM_OSI_STRINGS; i++) {
-                if (!ACPI_STRCMP(string_desc->string.pointer,
-                                 ACPI_CAST_PTR(char,
-                                               acpi_gbl_valid_osi_strings[i])))
-                {
-                        /* This string is supported */
+        for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) {
+                if (!ACPI_STRCMP
+                    (string_desc->string.pointer,
+                     acpi_interfaces_supported[i])) {
 
-                        return_desc->integer.value = 0xFFFFFFFF;
-                        break;
+                        /* The interface is supported */
+
+                        return_ACPI_STATUS(AE_CTRL_TERMINATE);
                 }
         }
 
-        walk_state->return_desc = return_desc;
+        /*
+         * Did not match the string in the static table, call the host OSL to
+         * check for a match with one of the optional strings (such as
+         * "Module Device", "3.0 Thermal Model", etc.)
+         */
+        status = acpi_os_validate_interface(string_desc->string.pointer);
+        if (ACPI_SUCCESS(status)) {
+
+                /* The interface is supported */
+
+                return_ACPI_STATUS(AE_CTRL_TERMINATE);
+        }
+
+        /* The interface is not supported */
+
+        return_desc->integer.value = 0;
         return_ACPI_STATUS(AE_CTRL_TERMINATE);
 }
 
@@ -134,19 +181,26 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
                         u32 expected_return_btypes,
                         union acpi_operand_object **return_desc)
 {
-        struct acpi_parameter_info info;
+        struct acpi_evaluate_info *info;
         acpi_status status;
         u32 return_btype;
 
-        ACPI_FUNCTION_TRACE("ut_evaluate_object");
+        ACPI_FUNCTION_TRACE(ut_evaluate_object);
 
-        info.node = prefix_node;
-        info.parameters = NULL;
-        info.parameter_type = ACPI_PARAM_ARGS;
+        /* Allocate the evaluation information block */
+
+        info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+        if (!info) {
+                return_ACPI_STATUS(AE_NO_MEMORY);
+        }
+
+        info->prefix_node = prefix_node;
+        info->pathname = path;
+        info->parameter_type = ACPI_PARAM_ARGS;
 
         /* Evaluate the object/method */
 
-        status = acpi_ns_evaluate_relative(path, &info);
+        status = acpi_ns_evaluate(info);
         if (ACPI_FAILURE(status)) {
                 if (status == AE_NOT_FOUND) {
                         ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
@@ -158,25 +212,25 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
                                           prefix_node, path, status);
                 }
 
-                return_ACPI_STATUS(status);
+                goto cleanup;
         }
 
         /* Did we get a return object? */
 
-        if (!info.return_object) {
+        if (!info->return_object) {
                 if (expected_return_btypes) {
                         ACPI_ERROR_METHOD("No object was returned from",
                                           prefix_node, path, AE_NOT_EXIST);
 
-                        return_ACPI_STATUS(AE_NOT_EXIST);
+                        status = AE_NOT_EXIST;
                 }
 
-                return_ACPI_STATUS(AE_OK);
+                goto cleanup;
         }
 
         /* Map the return object type to the bitmapped type */
 
-        switch (ACPI_GET_OBJECT_TYPE(info.return_object)) {
+        switch (ACPI_GET_OBJECT_TYPE(info->return_object)) {
         case ACPI_TYPE_INTEGER:
                 return_btype = ACPI_BTYPE_INTEGER;
                 break;
@@ -204,8 +258,8 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
                  * happen frequently if the "implicit return" feature is enabled.
                  * Just delete the return object and return AE_OK.
                  */
-                acpi_ut_remove_reference(info.return_object);
-                return_ACPI_STATUS(AE_OK);
+                acpi_ut_remove_reference(info->return_object);
+                goto cleanup;
         }
 
         /* Is the return object one of the expected types? */
@@ -217,19 +271,23 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
                 ACPI_ERROR((AE_INFO,
                             "Type returned from %s was incorrect: %s, expected Btypes: %X",
                             path,
-                            acpi_ut_get_object_type_name(info.return_object),
+                            acpi_ut_get_object_type_name(info->return_object),
                             expected_return_btypes));
 
                 /* On error exit, we must delete the return object */
 
-                acpi_ut_remove_reference(info.return_object);
-                return_ACPI_STATUS(AE_TYPE);
+                acpi_ut_remove_reference(info->return_object);
+                status = AE_TYPE;
+                goto cleanup;
         }
 
         /* Object type is OK, return it */
 
-        *return_desc = info.return_object;
-        return_ACPI_STATUS(AE_OK);
+        *return_desc = info->return_object;
+
+      cleanup:
+        ACPI_FREE(info);
+        return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
@@ -257,7 +315,7 @@ acpi_ut_evaluate_numeric_object(char *object_name,
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ut_evaluate_numeric_object");
+        ACPI_FUNCTION_TRACE(ut_evaluate_numeric_object);
 
         status = acpi_ut_evaluate_object(device_node, object_name,
                                          ACPI_BTYPE_INTEGER, &obj_desc);
@@ -333,7 +391,7 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ut_execute_HID");
+        ACPI_FUNCTION_TRACE(ut_execute_HID);
 
         status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
                                          ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
@@ -343,6 +401,7 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
         }
 
         if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
                 /* Convert the Numeric HID to string */
 
                 acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
@@ -436,7 +495,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
         struct acpi_compatible_id_list *cid_list;
         acpi_native_uint i;
 
-        ACPI_FUNCTION_TRACE("ut_execute_CID");
+        ACPI_FUNCTION_TRACE(ut_execute_CID);
 
         /* Evaluate the _CID method for this device */
 
@@ -459,7 +518,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
         size = (((count - 1) * sizeof(struct acpi_compatible_id)) +
                 sizeof(struct acpi_compatible_id_list));
 
-        cid_list = ACPI_MEM_CALLOCATE((acpi_size) size);
+        cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
         if (!cid_list) {
                 return_ACPI_STATUS(AE_NO_MEMORY);
         }
@@ -479,6 +538,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
         /* The _CID object can be either a single CID or a package (list) of CIDs */
 
         if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
+
                 /* Translate each package element */
 
                 for (i = 0; i < count; i++) {
@@ -499,7 +559,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
         /* Cleanup on error */
 
         if (ACPI_FAILURE(status)) {
-                ACPI_MEM_FREE(cid_list);
+                ACPI_FREE(cid_list);
         } else {
                 *return_cid_list = cid_list;
         }
@@ -533,7 +593,7 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ut_execute_UID");
+        ACPI_FUNCTION_TRACE(ut_execute_UID);
 
         status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
                                          ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
@@ -543,6 +603,7 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
         }
 
         if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
                 /* Convert the Numeric UID to string */
 
                 acpi_ex_unsigned_integer_to_string(obj_desc->integer.value,
@@ -582,7 +643,7 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
         union acpi_operand_object *obj_desc;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ut_execute_STA");
+        ACPI_FUNCTION_TRACE(ut_execute_STA);
 
         status = acpi_ut_evaluate_object(device_node, METHOD_NAME__STA,
                                          ACPI_BTYPE_INTEGER, &obj_desc);
@@ -632,7 +693,7 @@ acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest)
         acpi_status status;
         u32 i;
 
-        ACPI_FUNCTION_TRACE("ut_execute_Sxds");
+        ACPI_FUNCTION_TRACE(ut_execute_sxds);
 
         for (i = 0; i < 4; i++) {
                 highest[i] = 0xFF;
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index ffd13383a325..e5999c65c0b8 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -43,7 +43,6 @@
 
 #define DEFINE_ACPI_GLOBALS
 
-#include <linux/module.h>
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
 
@@ -119,6 +118,7 @@ const char *acpi_format_exception(acpi_status status)
         }
 
         if (!exception) {
+
                 /* Exception code was not recognized */
 
                 ACPI_ERROR((AE_INFO,
@@ -143,12 +143,10 @@ const char *acpi_format_exception(acpi_status status)
 
 /* Debug switch - level and trace mask */
 u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
-EXPORT_SYMBOL(acpi_dbg_level);
 
 /* Debug switch - layer (component) mask */
 
 u32 acpi_dbg_layer = ACPI_COMPONENT_DEFAULT | ACPI_ALL_DRIVERS;
-EXPORT_SYMBOL(acpi_dbg_layer);
 u32 acpi_gbl_nesting_level = 0;
 
 /* Debugger globals */
@@ -183,28 +181,6 @@ const char *acpi_gbl_highest_dstate_names[4] = {
         "_S4D"
 };
 
-/*
- * Strings supported by the _OSI predefined (internal) method.
- * When adding strings, be sure to update ACPI_NUM_OSI_STRINGS.
- */
-const char *acpi_gbl_valid_osi_strings[ACPI_NUM_OSI_STRINGS] = {
-        /* Operating System Vendor Strings */
-
-        "Linux",
-        "Windows 2000",
-        "Windows 2001",
-        "Windows 2001.1",
-        "Windows 2001 SP0",
-        "Windows 2001 SP1",
-        "Windows 2001 SP2",
-        "Windows 2001 SP3",
-        "Windows 2001 SP4",
-
-        /* Feature Group Strings */
-
-        "Extended Address Space Descriptor"
-};
-
 /*******************************************************************************
  *
  * Namespace globals
@@ -317,9 +293,9 @@ char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position)
  *
  ******************************************************************************/
 
-struct acpi_table_list acpi_gbl_table_lists[NUM_ACPI_TABLE_TYPES];
+struct acpi_table_list acpi_gbl_table_lists[ACPI_TABLE_ID_MAX + 1];
 
-struct acpi_table_support acpi_gbl_table_data[NUM_ACPI_TABLE_TYPES] = {
+struct acpi_table_support acpi_gbl_table_data[ACPI_TABLE_ID_MAX + 1] = {
         /***********    Name,   Signature, Global typed pointer     Signature size,      Type                  How many allowed?,    Contains valid AML? */
 
         /* RSDP 0 */ {RSDP_NAME, RSDP_SIG, NULL, sizeof(RSDP_SIG) - 1,
@@ -467,7 +443,6 @@ struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] =
 /* Region type decoding */
 
 const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
-/*! [Begin] no source code translation (keep these ASL Keywords as-is) */
         "SystemMemory",
         "SystemIO",
         "PCI_Config",
@@ -476,16 +451,15 @@ const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
         "CMOS",
         "PCIBARTarget",
         "DataTable"
-/*! [End] no source code translation !*/
 };
 
 char *acpi_ut_get_region_name(u8 space_id)
 {
 
         if (space_id >= ACPI_USER_REGION_BEGIN) {
-                return ("user_defined_region");
+                return ("UserDefinedRegion");
         } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
-                return ("invalid_space_id");
+                return ("InvalidSpaceId");
         }
 
         return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
@@ -506,20 +480,18 @@ char *acpi_ut_get_region_name(u8 space_id)
 /* Event type decoding */
 
 static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
-/*! [Begin] no source code translation (keep these strings as-is) */
         "PM_Timer",
         "GlobalLock",
         "PowerButton",
         "SleepButton",
         "RealTimeClock",
-/*! [End] no source code translation !*/
 };
 
 char *acpi_ut_get_event_name(u32 event_id)
 {
 
         if (event_id > ACPI_EVENT_MAX) {
-                return ("invalid_event_iD");
+                return ("InvalidEventID");
         }
 
         return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id]));
@@ -550,7 +522,6 @@ static const char acpi_gbl_bad_type[] = "UNDEFINED";
 /* Printable names of the ACPI object types */
 
 static const char *acpi_gbl_ns_type_names[] = {
-/*! [Begin] no source code translation (keep these strings as-is) */
         /* 00 */ "Untyped",
         /* 01 */ "Integer",
         /* 02 */ "String",
@@ -582,7 +553,6 @@ static const char *acpi_gbl_ns_type_names[] = {
         /* 28 */ "Extra",
         /* 29 */ "Data",
         /* 30 */ "Invalid"
-/*! [End] no source code translation !*/
 };
 
 char *acpi_ut_get_type_name(acpi_object_type type)
@@ -635,14 +605,14 @@ char *acpi_ut_get_node_name(void *object)
 
         /* Descriptor must be a namespace node */
 
-        if (node->descriptor != ACPI_DESC_TYPE_NAMED) {
+        if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
                 return ("####");
         }
 
         /* Name must be a valid ACPI name */
 
         if (!acpi_ut_valid_acpi_name(node->name.integer)) {
-                return ("????");
+                node->name.integer = acpi_ut_repair_name(node->name.integer);
         }
 
         /* Return the name */
@@ -665,7 +635,6 @@ char *acpi_ut_get_node_name(void *object)
 /* Printable names of object descriptor types */
 
 static const char *acpi_gbl_desc_type_names[] = {
-/*! [Begin] no source code translation (keep these ASL Keywords as-is) */
         /* 00 */ "Invalid",
         /* 01 */ "Cached",
         /* 02 */ "State-Generic",
@@ -682,7 +651,6 @@ static const char *acpi_gbl_desc_type_names[] = {
         /* 13 */ "Parser",
         /* 14 */ "Operand",
         /* 15 */ "Node"
-/*! [End] no source code translation !*/
 };
 
 char *acpi_ut_get_descriptor_name(void *object)
@@ -723,7 +691,7 @@ char *acpi_ut_get_descriptor_name(void *object)
 char *acpi_ut_get_mutex_name(u32 mutex_id)
 {
 
-        if (mutex_id > MAX_MUTEX) {
+        if (mutex_id > ACPI_MAX_MUTEX) {
                 return ("Invalid Mutex ID");
         }
 
@@ -747,6 +715,7 @@ u8 acpi_ut_valid_object_type(acpi_object_type type)
 {
 
         if (type > ACPI_TYPE_LOCAL_MAX) {
+
                 /* Note: Assumes all TYPEs are contiguous (external/local) */
 
                 return (FALSE);
@@ -773,7 +742,7 @@ void acpi_ut_init_globals(void)
         acpi_status status;
         u32 i;
 
-        ACPI_FUNCTION_TRACE("ut_init_globals");
+        ACPI_FUNCTION_TRACE(ut_init_globals);
 
         /* Create all memory caches */
 
@@ -784,14 +753,14 @@ void acpi_ut_init_globals(void)
 
         /* ACPI table structure */
 
-        for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) {
+        for (i = 0; i < (ACPI_TABLE_ID_MAX + 1); i++) {
                 acpi_gbl_table_lists[i].next = NULL;
                 acpi_gbl_table_lists[i].count = 0;
         }
 
         /* Mutex locked flags */
 
-        for (i = 0; i < NUM_MUTEX; i++) {
+        for (i = 0; i < ACPI_NUM_MUTEX; i++) {
                 acpi_gbl_mutex_info[i].mutex = NULL;
                 acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
                 acpi_gbl_mutex_info[i].use_count = 0;
@@ -856,7 +825,7 @@ void acpi_ut_init_globals(void)
 
         acpi_gbl_root_node = NULL;
         acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
-        acpi_gbl_root_node_struct.descriptor = ACPI_DESC_TYPE_NAMED;
+        acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
         acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
         acpi_gbl_root_node_struct.child = NULL;
         acpi_gbl_root_node_struct.peer = NULL;
@@ -869,3 +838,6 @@ void acpi_ut_init_globals(void)
 
         return_VOID;
 }
+
+ACPI_EXPORT_SYMBOL(acpi_dbg_level)
+ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
diff --git a/drivers/acpi/utilities/utinit.c b/drivers/acpi/utilities/utinit.c
index ba771b4f39bc..ff76055eb7d6 100644
--- a/drivers/acpi/utilities/utinit.c
+++ b/drivers/acpi/utilities/utinit.c
@@ -50,7 +50,7 @@ ACPI_MODULE_NAME("utinit")
 
 /* Local prototypes */
 static void
-acpi_ut_fadt_register_error(char *register_name, u32 value, acpi_size offset);
+acpi_ut_fadt_register_error(char *register_name, u32 value, u8 offset);
 
 static void acpi_ut_terminate(void);
 
@@ -69,12 +69,12 @@ static void acpi_ut_terminate(void);
  ******************************************************************************/
 
 static void
-acpi_ut_fadt_register_error(char *register_name, u32 value, acpi_size offset)
+acpi_ut_fadt_register_error(char *register_name, u32 value, u8 offset)
 {
 
         ACPI_WARNING((AE_INFO,
                       "Invalid FADT value %s=%X at offset %X FADT=%p",
-                      register_name, value, (u32) offset, acpi_gbl_FADT));
+                      register_name, value, offset, acpi_gbl_FADT));
 }
 
 /******************************************************************************
@@ -176,7 +176,7 @@ static void acpi_ut_terminate(void)
         struct acpi_gpe_xrupt_info *gpe_xrupt_info;
         struct acpi_gpe_xrupt_info *next_gpe_xrupt_info;
 
-        ACPI_FUNCTION_TRACE("ut_terminate");
+        ACPI_FUNCTION_TRACE(ut_terminate);
 
         /* Free global tables, etc. */
         /* Free global GPE blocks and related info structures */
@@ -186,14 +186,14 @@ static void acpi_ut_terminate(void)
                 gpe_block = gpe_xrupt_info->gpe_block_list_head;
                 while (gpe_block) {
                         next_gpe_block = gpe_block->next;
-                        ACPI_MEM_FREE(gpe_block->event_info);
-                        ACPI_MEM_FREE(gpe_block->register_info);
-                        ACPI_MEM_FREE(gpe_block);
+                        ACPI_FREE(gpe_block->event_info);
+                        ACPI_FREE(gpe_block->register_info);
+                        ACPI_FREE(gpe_block);
 
                         gpe_block = next_gpe_block;
                 }
                 next_gpe_xrupt_info = gpe_xrupt_info->next;
-                ACPI_MEM_FREE(gpe_xrupt_info);
+                ACPI_FREE(gpe_xrupt_info);
                 gpe_xrupt_info = next_gpe_xrupt_info;
         }
 
@@ -216,7 +216,7 @@ static void acpi_ut_terminate(void)
 void acpi_ut_subsystem_shutdown(void)
 {
 
-        ACPI_FUNCTION_TRACE("ut_subsystem_shutdown");
+        ACPI_FUNCTION_TRACE(ut_subsystem_shutdown);
 
         /* Just exit if subsystem is already shutdown */
 
@@ -228,6 +228,7 @@ void acpi_ut_subsystem_shutdown(void)
         /* Subsystem appears active, go ahead and shut it down */
 
         acpi_gbl_shutdown = TRUE;
+        acpi_gbl_startup_flags = 0;
         ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
 
         /* Close the acpi_event Handling */
@@ -245,12 +246,5 @@ void acpi_ut_subsystem_shutdown(void)
         /* Purge the local caches */
 
         (void)acpi_ut_delete_caches();
-
-        /* Debug only - display leftover memory allocation, if any */
-
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-        acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL);
-#endif
-
         return_VOID;
 }
diff --git a/drivers/acpi/utilities/utmath.c b/drivers/acpi/utilities/utmath.c
index 4a3360484e72..19d74bedce27 100644
--- a/drivers/acpi/utilities/utmath.c
+++ b/drivers/acpi/utilities/utmath.c
@@ -77,7 +77,7 @@ acpi_ut_short_divide(acpi_integer dividend,
         union uint64_overlay quotient;
         u32 remainder32;
 
-        ACPI_FUNCTION_TRACE("ut_short_divide");
+        ACPI_FUNCTION_TRACE(ut_short_divide);
 
         /* Always check for a zero divisor */
 
@@ -139,7 +139,7 @@ acpi_ut_divide(acpi_integer in_dividend,
         union uint64_overlay partial2;
         union uint64_overlay partial3;
 
-        ACPI_FUNCTION_TRACE("ut_divide");
+        ACPI_FUNCTION_TRACE(ut_divide);
 
         /* Always check for a zero divisor */
 
@@ -261,7 +261,7 @@ acpi_ut_short_divide(acpi_integer in_dividend,
                      acpi_integer * out_quotient, u32 * out_remainder)
 {
 
-        ACPI_FUNCTION_TRACE("ut_short_divide");
+        ACPI_FUNCTION_TRACE(ut_short_divide);
 
         /* Always check for a zero divisor */
 
@@ -287,7 +287,7 @@ acpi_ut_divide(acpi_integer in_dividend,
                acpi_integer in_divisor,
                acpi_integer * out_quotient, acpi_integer * out_remainder)
 {
-        ACPI_FUNCTION_TRACE("ut_divide");
+        ACPI_FUNCTION_TRACE(ut_divide);
 
         /* Always check for a zero divisor */
 
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index 7364f5f8c9cd..5c75d35ad1cd 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -49,6 +49,33 @@ ACPI_MODULE_NAME("utmisc")
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ut_is_aml_table
+ *
+ * PARAMETERS:  Table               - An ACPI table
+ *
+ * RETURN:      TRUE if table contains executable AML; FALSE otherwise
+ *
+ * DESCRIPTION: Check ACPI Signature for a table that contains AML code.
+ *              Currently, these are DSDT,SSDT,PSDT. All other table types are
+ *              data tables that do not contain AML code.
+ *
+ ******************************************************************************/
+u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
+{
+
+        /* Ignore tables that contain AML */
+
+        if (ACPI_COMPARE_NAME(table->signature, DSDT_SIG) ||
+            ACPI_COMPARE_NAME(table->signature, PSDT_SIG) ||
+            ACPI_COMPARE_NAME(table->signature, SSDT_SIG)) {
+                return (TRUE);
+        }
+
+        return (FALSE);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ut_allocate_owner_id
  *
  * PARAMETERS:  owner_id        - Where the new owner ID is returned
@@ -60,6 +87,7 @@ ACPI_MODULE_NAME("utmisc")
  *              when the method exits or the table is unloaded.
  *
  ******************************************************************************/
+
 acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
 {
         acpi_native_uint i;
@@ -67,7 +95,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
         acpi_native_uint k;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ut_allocate_owner_id");
+        ACPI_FUNCTION_TRACE(ut_allocate_owner_id);
 
         /* Guard against multiple allocations of ID to the same location */
 
@@ -97,6 +125,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
 
                 for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) {
                         if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) {
+
                                 /* There are no free IDs in this mask */
 
                                 break;
@@ -123,7 +152,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
                                     (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j));
 
                                 ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
-                                                  "Allocated owner_id: %2.2X\n",
+                                                  "Allocated OwnerId: %2.2X\n",
                                                   (unsigned int)*owner_id));
                                 goto exit;
                         }
@@ -144,7 +173,7 @@ 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 owner_id (255 max), AE_OWNER_ID_LIMIT"));
+                    "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
 
       exit:
         (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
@@ -172,7 +201,7 @@ void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
         acpi_native_uint index;
         u32 bit;
 
-        ACPI_FUNCTION_TRACE_U32("ut_release_owner_id", owner_id);
+        ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id);
 
         /* Always clear the input owner_id (zero is an invalid ID) */
 
@@ -181,7 +210,7 @@ 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 owner_id: %2.2X", owner_id));
+                ACPI_ERROR((AE_INFO, "Invalid OwnerId: %2.2X", owner_id));
                 return_VOID;
         }
 
@@ -207,7 +236,7 @@ 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 owner_id: %2.2X",
+                            "Release of non-allocated OwnerId: %2.2X",
                             owner_id + 1));
         }
 
@@ -273,6 +302,7 @@ void acpi_ut_print_string(char *string, u8 max_length)
 
         acpi_os_printf("\"");
         for (i = 0; string[i] && (i < max_length); i++) {
+
                 /* Escape sequences */
 
                 switch (string[i]) {
@@ -461,12 +491,47 @@ acpi_ut_display_init_pathname(u8 type,
         }
         acpi_os_printf("\n");
 
-        ACPI_MEM_FREE(buffer.pointer);
+        ACPI_FREE(buffer.pointer);
 }
 #endif
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ut_valid_acpi_char
+ *
+ * PARAMETERS:  Char            - The character to be examined
+ *
+ * RETURN:      TRUE if the character is valid, FALSE otherwise
+ *
+ * DESCRIPTION: Check for a valid ACPI character. Must be one of:
+ *              1) Upper case alpha
+ *              2) numeric
+ *              3) underscore
+ *
+ *              We allow a '!' as the last character because of the ASF! table
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_valid_acpi_char(char character, acpi_native_uint position)
+{
+
+        if (!((character >= 'A' && character <= 'Z') ||
+              (character >= '0' && character <= '9') || (character == '_'))) {
+
+                /* Allow a '!' in the last position */
+
+                if (character == '!' && position == 3) {
+                        return (TRUE);
+                }
+
+                return (FALSE);
+        }
+
+        return (TRUE);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ut_valid_acpi_name
  *
  * PARAMETERS:  Name            - The name to be examined
@@ -482,19 +547,13 @@ acpi_ut_display_init_pathname(u8 type,
 
 u8 acpi_ut_valid_acpi_name(u32 name)
 {
-        char *name_ptr = (char *)&name;
-        char character;
         acpi_native_uint i;
 
         ACPI_FUNCTION_ENTRY();
 
         for (i = 0; i < ACPI_NAME_SIZE; i++) {
-                character = *name_ptr;
-                name_ptr++;
-
-                if (!((character == '_') ||
-                      (character >= 'A' && character <= 'Z') ||
-                      (character >= '0' && character <= '9'))) {
+                if (!acpi_ut_valid_acpi_char
+                    ((ACPI_CAST_PTR(char, &name))[i], i)) {
                         return (FALSE);
                 }
         }
@@ -504,24 +563,37 @@ u8 acpi_ut_valid_acpi_name(u32 name)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ut_valid_acpi_character
+ * FUNCTION:    acpi_ut_repair_name
  *
- * PARAMETERS:  Character           - The character to be examined
+ * PARAMETERS:  Name            - The ACPI name to be repaired
  *
- * RETURN:      1 if Character may appear in a name, else 0
+ * RETURN:      Repaired version of the name
  *
- * DESCRIPTION: Check for a printable character
+ * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and
+ *              return the new name.
  *
  ******************************************************************************/
 
-u8 acpi_ut_valid_acpi_character(char character)
+acpi_name acpi_ut_repair_name(acpi_name name)
 {
+        char *name_ptr = ACPI_CAST_PTR(char, &name);
+        char new_name[ACPI_NAME_SIZE];
+        acpi_native_uint i;
 
-        ACPI_FUNCTION_ENTRY();
+        for (i = 0; i < ACPI_NAME_SIZE; i++) {
+                new_name[i] = name_ptr[i];
 
-        return ((u8) ((character == '_') ||
-                      (character >= 'A' && character <= 'Z') ||
-                      (character >= '0' && character <= '9')));
+                /*
+                 * Replace a bad character with something printable, yet technically
+                 * still invalid. This prevents any collisions with existing "good"
+                 * names in the namespace.
+                 */
+                if (!acpi_ut_valid_acpi_char(name_ptr[i], i)) {
+                        new_name[i] = '*';
+                }
+        }
+
+        return (*ACPI_CAST_PTR(u32, new_name));
 }
 
 /*******************************************************************************
@@ -529,7 +601,8 @@ u8 acpi_ut_valid_acpi_character(char character)
  * FUNCTION:    acpi_ut_strtoul64
  *
  * PARAMETERS:  String          - Null terminated string
- *              Base            - Radix of the string: 10, 16, or ACPI_ANY_BASE
+ *              Base            - Radix of the string: 16 or ACPI_ANY_BASE;
+ *                                ACPI_ANY_BASE means 'in behalf of to_integer'
  *              ret_integer     - Where the converted integer is returned
  *
  * RETURN:      Status and Converted value
@@ -545,16 +618,17 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer)
         u32 this_digit = 0;
         acpi_integer return_value = 0;
         acpi_integer quotient;
+        acpi_integer dividend;
+        u32 to_integer_op = (base == ACPI_ANY_BASE);
+        u32 mode32 = (acpi_gbl_integer_byte_width == 4);
+        u8 valid_digits = 0;
+        u8 sign_of0x = 0;
+        u8 term = 0;
 
-        ACPI_FUNCTION_TRACE("ut_stroul64");
-
-        if ((!string) || !(*string)) {
-                goto error_exit;
-        }
+        ACPI_FUNCTION_TRACE(ut_stroul64);
 
         switch (base) {
         case ACPI_ANY_BASE:
-        case 10:
         case 16:
                 break;
 
@@ -563,76 +637,110 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer)
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
+        if (!string) {
+                goto error_exit;
+        }
+
         /* Skip over any white space in the buffer */
 
-        while (ACPI_IS_SPACE(*string) || *string == '\t') {
+        while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) {
                 string++;
         }
 
-        /*
-         * If the input parameter Base is zero, then we need to
-         * determine if it is decimal or hexadecimal:
-         */
-        if (base == 0) {
+        if (to_integer_op) {
+                /*
+                 * Base equal to ACPI_ANY_BASE means 'to_integer operation case'.
+                 * We need to determine if it is decimal or hexadecimal.
+                 */
                 if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) {
+                        sign_of0x = 1;
                         base = 16;
+
+                        /* Skip over the leading '0x' */
                         string += 2;
                 } else {
                         base = 10;
                 }
         }
 
-        /*
-         * For hexadecimal base, skip over the leading
-         * 0 or 0x, if they are present.
-         */
-        if ((base == 16) &&
-            (*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) {
-                string += 2;
+        /* Any string left? Check that '0x' is not followed by white space. */
+
+        if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') {
+                if (to_integer_op) {
+                        goto error_exit;
+                } else {
+                        goto all_done;
+                }
         }
 
-        /* Any string left? */
+        dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX;
 
-        if (!(*string)) {
-                goto error_exit;
-        }
+        /* At least one character in the string here */
 
         /* Main loop: convert the string to a 64-bit integer */
 
         while (*string) {
                 if (ACPI_IS_DIGIT(*string)) {
+
                         /* Convert ASCII 0-9 to Decimal value */
 
                         this_digit = ((u8) * string) - '0';
-                } else {
-                        if (base == 10) {
-                                /* Digit is out of range */
+                } else if (base == 10) {
 
-                                goto error_exit;
-                        }
+                        /* Digit is out of range; possible in to_integer case only */
 
+                        term = 1;
+                } else {
                         this_digit = (u8) ACPI_TOUPPER(*string);
                         if (ACPI_IS_XDIGIT((char)this_digit)) {
+
                                 /* Convert ASCII Hex char to value */
 
                                 this_digit = this_digit - 'A' + 10;
                         } else {
-                                /*
-                                 * We allow non-hex chars, just stop now, same as end-of-string.
-                                 * See ACPI spec, string-to-integer conversion.
-                                 */
+                                term = 1;
+                        }
+                }
+
+                if (term) {
+                        if (to_integer_op) {
+                                goto error_exit;
+                        } else {
                                 break;
                         }
+                } else if ((valid_digits == 0) && (this_digit == 0)
+                           && !sign_of0x) {
+
+                        /* Skip zeros */
+                        string++;
+                        continue;
+                }
+
+                valid_digits++;
+
+                if (sign_of0x
+                    && ((valid_digits > 16)
+                        || ((valid_digits > 8) && mode32))) {
+                        /*
+                         * This is to_integer operation case.
+                         * No any restrictions for string-to-integer conversion,
+                         * see ACPI spec.
+                         */
+                        goto error_exit;
                 }
 
                 /* Divide the digit into the correct position */
 
                 (void)
-                    acpi_ut_short_divide((ACPI_INTEGER_MAX -
-                                          (acpi_integer) this_digit), base,
-                                         &quotient, NULL);
+                    acpi_ut_short_divide((dividend - (acpi_integer) this_digit),
+                                         base, &quotient, NULL);
+
                 if (return_value > quotient) {
-                        goto error_exit;
+                        if (to_integer_op) {
+                                goto error_exit;
+                        } else {
+                                break;
+                        }
                 }
 
                 return_value *= base;
@@ -642,6 +750,8 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer)
 
         /* All done, normal exit */
 
+      all_done:
+
         *ret_integer = return_value;
         return_ACPI_STATUS(AE_OK);
 
@@ -719,7 +829,7 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object,
         u32 this_index;
         union acpi_operand_object *this_source_obj;
 
-        ACPI_FUNCTION_TRACE("ut_walk_package_tree");
+        ACPI_FUNCTION_TRACE(ut_walk_package_tree);
 
         state = acpi_ut_create_pkg_state(source_object, target_object, 0);
         if (!state) {
@@ -727,6 +837,7 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object,
         }
 
         while (state) {
+
                 /* Get one element of the package */
 
                 this_index = state->pkg.index;
@@ -814,31 +925,6 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object,
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ut_generate_checksum
- *
- * PARAMETERS:  Buffer          - Buffer to be scanned
- *              Length          - number of bytes to examine
- *
- * RETURN:      The generated checksum
- *
- * DESCRIPTION: Generate a checksum on a raw buffer
- *
- ******************************************************************************/
-
-u8 acpi_ut_generate_checksum(u8 * buffer, u32 length)
-{
-        u32 i;
-        signed char sum = 0;
-
-        for (i = 0; i < length; i++) {
-                sum = (signed char)(sum + buffer[i]);
-        }
-
-        return ((u8) (0 - sum));
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_ut_error, acpi_ut_warning, acpi_ut_info
  *
  * PARAMETERS:  module_name         - Caller's module name (for error output)
@@ -900,36 +986,3 @@ acpi_ut_info(char *module_name, u32 line_number, char *format, ...)
         acpi_os_vprintf(format, args);
         acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
 }
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_report_error, Warning, Info
- *
- * PARAMETERS:  module_name         - Caller's module name (for error output)
- *              line_number         - Caller's line number (for error output)
- *
- * RETURN:      None
- *
- * DESCRIPTION: Print error message
- *
- * Note: Legacy only, should be removed when no longer used by drivers.
- *
- ******************************************************************************/
-
-void acpi_ut_report_error(char *module_name, u32 line_number)
-{
-
-        acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
-}
-
-void acpi_ut_report_warning(char *module_name, u32 line_number)
-{
-
-        acpi_os_printf("ACPI Warning (%s-%04d): ", module_name, line_number);
-}
-
-void acpi_ut_report_info(char *module_name, u32 line_number)
-{
-
-        acpi_os_printf("ACPI (%s-%04d): ", module_name, line_number);
-}
diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c
index 45a7244df924..25eb34369afa 100644
--- a/drivers/acpi/utilities/utmutex.c
+++ b/drivers/acpi/utilities/utmutex.c
@@ -68,19 +68,26 @@ acpi_status acpi_ut_mutex_initialize(void)
         u32 i;
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("ut_mutex_initialize");
+        ACPI_FUNCTION_TRACE(ut_mutex_initialize);
 
         /*
          * Create each of the predefined mutex objects
          */
-        for (i = 0; i < NUM_MUTEX; i++) {
+        for (i = 0; i < ACPI_NUM_MUTEX; i++) {
                 status = acpi_ut_create_mutex(i);
                 if (ACPI_FAILURE(status)) {
                         return_ACPI_STATUS(status);
                 }
         }
 
+        /* Create the spinlocks for use at interrupt level */
+
         status = acpi_os_create_lock(&acpi_gbl_gpe_lock);
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
+        }
+
+        status = acpi_os_create_lock(&acpi_gbl_hardware_lock);
         return_ACPI_STATUS(status);
 }
 
@@ -100,16 +107,19 @@ void acpi_ut_mutex_terminate(void)
 {
         u32 i;
 
-        ACPI_FUNCTION_TRACE("ut_mutex_terminate");
+        ACPI_FUNCTION_TRACE(ut_mutex_terminate);
 
         /*
          * Delete each predefined mutex object
          */
-        for (i = 0; i < NUM_MUTEX; i++) {
+        for (i = 0; i < ACPI_NUM_MUTEX; i++) {
                 (void)acpi_ut_delete_mutex(i);
         }
 
+        /* Delete the spinlocks */
+
         acpi_os_delete_lock(acpi_gbl_gpe_lock);
+        acpi_os_delete_lock(acpi_gbl_hardware_lock);
         return_VOID;
 }
 
@@ -129,9 +139,9 @@ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_U32("ut_create_mutex", mutex_id);
+        ACPI_FUNCTION_TRACE_U32(ut_create_mutex, mutex_id);
 
-        if (mutex_id > MAX_MUTEX) {
+        if (mutex_id > ACPI_MAX_MUTEX) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
@@ -163,9 +173,9 @@ static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE_U32("ut_delete_mutex", mutex_id);
+        ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id);
 
-        if (mutex_id > MAX_MUTEX) {
+        if (mutex_id > ACPI_MAX_MUTEX) {
                 return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
@@ -192,11 +202,11 @@ static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
 acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
 {
         acpi_status status;
-        u32 this_thread_id;
+        acpi_thread_id this_thread_id;
 
-        ACPI_FUNCTION_NAME("ut_acquire_mutex");
+        ACPI_FUNCTION_NAME(ut_acquire_mutex);
 
-        if (mutex_id > MAX_MUTEX) {
+        if (mutex_id > ACPI_MAX_MUTEX) {
                 return (AE_BAD_PARAMETER);
         }
 
@@ -213,7 +223,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
                  * the mutex ordering rule.  This indicates a coding error somewhere in
                  * the ACPI subsystem code.
                  */
-                for (i = mutex_id; i < MAX_MUTEX; i++) {
+                for (i = mutex_id; i < ACPI_MAX_MUTEX; i++) {
                         if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
                                 if (i == mutex_id) {
                                         ACPI_ERROR((AE_INFO,
@@ -275,16 +285,16 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
 acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
 {
         acpi_status status;
-        u32 this_thread_id;
+        acpi_thread_id this_thread_id;
 
-        ACPI_FUNCTION_NAME("ut_release_mutex");
+        ACPI_FUNCTION_NAME(ut_release_mutex);
 
         this_thread_id = acpi_os_get_thread_id();
         ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
                           "Thread %X releasing Mutex [%s]\n", this_thread_id,
                           acpi_ut_get_mutex_name(mutex_id)));
 
-        if (mutex_id > MAX_MUTEX) {
+        if (mutex_id > ACPI_MAX_MUTEX) {
                 return (AE_BAD_PARAMETER);
         }
 
@@ -309,7 +319,7 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
                  * ordering rule.  This indicates a coding error somewhere in
                  * the ACPI subsystem code.
                  */
-                for (i = mutex_id; i < MAX_MUTEX; i++) {
+                for (i = mutex_id; i < ACPI_MAX_MUTEX; i++) {
                         if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
                                 if (i == mutex_id) {
                                         continue;
diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c
index 7ee2d1d98071..ba7d8ac702df 100644
--- a/drivers/acpi/utilities/utobject.c
+++ b/drivers/acpi/utilities/utobject.c
@@ -92,7 +92,7 @@ union acpi_operand_object *acpi_ut_create_internal_object_dbg(char *module_name,
         union acpi_operand_object *object;
         union acpi_operand_object *second_object;
 
-        ACPI_FUNCTION_TRACE_STR("ut_create_internal_object_dbg",
+        ACPI_FUNCTION_TRACE_STR(ut_create_internal_object_dbg,
                                 acpi_ut_get_type_name(type));
 
         /* Allocate the raw object descriptor */
@@ -161,7 +161,7 @@ union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size)
         union acpi_operand_object *buffer_desc;
         u8 *buffer = NULL;
 
-        ACPI_FUNCTION_TRACE_U32("ut_create_buffer_object", buffer_size);
+        ACPI_FUNCTION_TRACE_U32(ut_create_buffer_object, buffer_size);
 
         /* Create a new Buffer object */
 
@@ -173,9 +173,10 @@ union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size)
         /* Create an actual buffer only if size > 0 */
 
         if (buffer_size > 0) {
+
                 /* Allocate the actual buffer */
 
-                buffer = ACPI_MEM_CALLOCATE(buffer_size);
+                buffer = ACPI_ALLOCATE_ZEROED(buffer_size);
                 if (!buffer) {
                         ACPI_ERROR((AE_INFO, "Could not allocate size %X",
                                     (u32) buffer_size));
@@ -214,7 +215,7 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size)
         union acpi_operand_object *string_desc;
         char *string;
 
-        ACPI_FUNCTION_TRACE_U32("ut_create_string_object", string_size);
+        ACPI_FUNCTION_TRACE_U32(ut_create_string_object, string_size);
 
         /* Create a new String object */
 
@@ -227,7 +228,7 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size)
          * Allocate the actual string buffer -- (Size + 1) for NULL terminator.
          * NOTE: Zero-length strings are NULL terminated
          */
-        string = ACPI_MEM_CALLOCATE(string_size + 1);
+        string = ACPI_ALLOCATE_ZEROED(string_size + 1);
         if (!string) {
                 ACPI_ERROR((AE_INFO, "Could not allocate size %X",
                             (u32) string_size));
@@ -260,7 +261,7 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size)
 u8 acpi_ut_valid_internal_object(void *object)
 {
 
-        ACPI_FUNCTION_NAME("ut_valid_internal_object");
+        ACPI_FUNCTION_NAME(ut_valid_internal_object);
 
         /* Check for a null pointer */
 
@@ -308,7 +309,7 @@ void *acpi_ut_allocate_object_desc_dbg(char *module_name,
 {
         union acpi_operand_object *object;
 
-        ACPI_FUNCTION_TRACE("ut_allocate_object_desc_dbg");
+        ACPI_FUNCTION_TRACE(ut_allocate_object_desc_dbg);
 
         object = acpi_os_acquire_object(acpi_gbl_operand_cache);
         if (!object) {
@@ -319,6 +320,7 @@ void *acpi_ut_allocate_object_desc_dbg(char *module_name,
         }
 
         /* Mark the descriptor type */
+
         memset(object, 0, sizeof(union acpi_operand_object));
         ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND);
 
@@ -342,7 +344,7 @@ void *acpi_ut_allocate_object_desc_dbg(char *module_name,
 
 void acpi_ut_delete_object_desc(union acpi_operand_object *object)
 {
-        ACPI_FUNCTION_TRACE_PTR("ut_delete_object_desc", object);
+        ACPI_FUNCTION_TRACE_PTR(ut_delete_object_desc, object);
 
         /* Object must be an union acpi_operand_object    */
 
@@ -381,7 +383,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
         acpi_size length;
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE_PTR("ut_get_simple_object_size", internal_object);
+        ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);
 
         /*
          * Handle a null object (Could be a uninitialized package
@@ -397,6 +399,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
         length = sizeof(union acpi_object);
 
         if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {
+
                 /* Object is a named object (reference), just return the length */
 
                 *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
@@ -559,7 +562,7 @@ acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
         acpi_status status;
         struct acpi_pkg_info info;
 
-        ACPI_FUNCTION_TRACE_PTR("ut_get_package_object_size", internal_object);
+        ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object);
 
         info.length = 0;
         info.object_space = 0;
diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c
index 16461317113f..5a2de92831d3 100644
--- a/drivers/acpi/utilities/utresrc.c
+++ b/drivers/acpi/utilities/utresrc.c
@@ -45,113 +45,113 @@
 #include <acpi/amlresrc.h>
 
 #define _COMPONENT          ACPI_UTILITIES
-ACPI_MODULE_NAME("utmisc")
+ACPI_MODULE_NAME("utresrc")
 
 #if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER)
 /*
  * Strings used to decode resource descriptors.
  * Used by both the disasssembler and the debugger resource dump routines
  */
-const char *acpi_gbl_BMdecode[2] = {
-        "not_bus_master",
-        "bus_master"
+const char *acpi_gbl_bm_decode[] = {
+        "NotBusMaster",
+        "BusMaster"
 };
 
-const char *acpi_gbl_config_decode[4] = {
+const char *acpi_gbl_config_decode[] = {
         "0 - Good Configuration",
         "1 - Acceptable Configuration",
         "2 - Suboptimal Configuration",
         "3 - ***Invalid Configuration***",
 };
 
-const char *acpi_gbl_consume_decode[2] = {
-        "resource_producer",
-        "resource_consumer"
+const char *acpi_gbl_consume_decode[] = {
+        "ResourceProducer",
+        "ResourceConsumer"
 };
 
-const char *acpi_gbl_DECdecode[2] = {
-        "pos_decode",
-        "sub_decode"
+const char *acpi_gbl_dec_decode[] = {
+        "PosDecode",
+        "SubDecode"
 };
 
-const char *acpi_gbl_HEdecode[2] = {
+const char *acpi_gbl_he_decode[] = {
         "Level",
         "Edge"
 };
 
-const char *acpi_gbl_io_decode[2] = {
+const char *acpi_gbl_io_decode[] = {
         "Decode10",
         "Decode16"
 };
 
-const char *acpi_gbl_LLdecode[2] = {
-        "active_high",
-        "active_low"
+const char *acpi_gbl_ll_decode[] = {
+        "ActiveHigh",
+        "ActiveLow"
 };
 
-const char *acpi_gbl_max_decode[2] = {
-        "max_not_fixed",
-        "max_fixed"
+const char *acpi_gbl_max_decode[] = {
+        "MaxNotFixed",
+        "MaxFixed"
 };
 
-const char *acpi_gbl_MEMdecode[4] = {
-        "non_cacheable",
+const char *acpi_gbl_mem_decode[] = {
+        "NonCacheable",
         "Cacheable",
-        "write_combining",
+        "WriteCombining",
         "Prefetchable"
 };
 
-const char *acpi_gbl_min_decode[2] = {
-        "min_not_fixed",
-        "min_fixed"
+const char *acpi_gbl_min_decode[] = {
+        "MinNotFixed",
+        "MinFixed"
 };
 
-const char *acpi_gbl_MTPdecode[4] = {
-        "address_range_memory",
-        "address_range_reserved",
-        "address_range_aCPI",
-        "address_range_nVS"
+const char *acpi_gbl_mtp_decode[] = {
+        "AddressRangeMemory",
+        "AddressRangeReserved",
+        "AddressRangeACPI",
+        "AddressRangeNVS"
 };
 
-const char *acpi_gbl_RNGdecode[4] = {
-        "invalid_ranges",
-        "non_iSAonly_ranges",
-        "ISAonly_ranges",
-        "entire_range"
+const char *acpi_gbl_rng_decode[] = {
+        "InvalidRanges",
+        "NonISAOnlyRanges",
+        "ISAOnlyRanges",
+        "EntireRange"
 };
 
-const char *acpi_gbl_RWdecode[2] = {
-        "read_only",
-        "read_write"
+const char *acpi_gbl_rw_decode[] = {
+        "ReadOnly",
+        "ReadWrite"
 };
 
-const char *acpi_gbl_SHRdecode[2] = {
+const char *acpi_gbl_shr_decode[] = {
         "Exclusive",
         "Shared"
 };
 
-const char *acpi_gbl_SIZdecode[4] = {
+const char *acpi_gbl_siz_decode[] = {
         "Transfer8",
         "Transfer8_16",
         "Transfer16",
-        "invalid_size"
+        "InvalidSize"
 };
 
-const char *acpi_gbl_TRSdecode[2] = {
-        "dense_translation",
-        "sparse_translation"
+const char *acpi_gbl_trs_decode[] = {
+        "DenseTranslation",
+        "SparseTranslation"
 };
 
-const char *acpi_gbl_TTPdecode[2] = {
-        "type_static",
-        "type_translation"
+const char *acpi_gbl_ttp_decode[] = {
+        "TypeStatic",
+        "TypeTranslation"
 };
 
-const char *acpi_gbl_TYPdecode[4] = {
+const char *acpi_gbl_typ_decode[] = {
         "Compatibility",
-        "type_a",
-        "type_b",
-        "type_f"
+        "TypeA",
+        "TypeB",
+        "TypeF"
 };
 
 #endif
@@ -240,6 +240,104 @@ static const u8 acpi_gbl_resource_types[] = {
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ut_walk_aml_resources
+ *
+ * PARAMETERS:  Aml             - Pointer to the raw AML resource template
+ *              aml_length      - Length of the entire template
+ *              user_function   - Called once for each descriptor found. If
+ *                                NULL, a pointer to the end_tag is returned
+ *              Context         - Passed to user_function
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Walk a raw AML resource list(buffer). User function called
+ *              once for each resource found.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_walk_aml_resources(u8 * aml,
+                           acpi_size aml_length,
+                           acpi_walk_aml_callback user_function, void **context)
+{
+        acpi_status status;
+        u8 *end_aml;
+        u8 resource_index;
+        u32 length;
+        u32 offset = 0;
+
+        ACPI_FUNCTION_TRACE(ut_walk_aml_resources);
+
+        /* The absolute minimum resource template is one end_tag descriptor */
+
+        if (aml_length < sizeof(struct aml_resource_end_tag)) {
+                return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+        }
+
+        /* Point to the end of the resource template buffer */
+
+        end_aml = aml + aml_length;
+
+        /* Walk the byte list, abort on any invalid descriptor type or length */
+
+        while (aml < end_aml) {
+
+                /* Validate the Resource Type and Resource Length */
+
+                status = acpi_ut_validate_resource(aml, &resource_index);
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+
+                /* Get the length of this descriptor */
+
+                length = acpi_ut_get_descriptor_length(aml);
+
+                /* Invoke the user function */
+
+                if (user_function) {
+                        status =
+                            user_function(aml, length, offset, resource_index,
+                                          context);
+                        if (ACPI_FAILURE(status)) {
+                                return (status);
+                        }
+                }
+
+                /* An end_tag descriptor terminates this resource template */
+
+                if (acpi_ut_get_resource_type(aml) ==
+                    ACPI_RESOURCE_NAME_END_TAG) {
+                        /*
+                         * There must be at least one more byte in the buffer for
+                         * the 2nd byte of the end_tag
+                         */
+                        if ((aml + 1) >= end_aml) {
+                                return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+                        }
+
+                        /* Return the pointer to the end_tag if requested */
+
+                        if (!user_function) {
+                                *context = aml;
+                        }
+
+                        /* Normal exit */
+
+                        return_ACPI_STATUS(AE_OK);
+                }
+
+                aml += length;
+                offset += length;
+        }
+
+        /* Did not find an end_tag descriptor */
+
+        return (AE_AML_NO_RESOURCE_END_TAG);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ut_validate_resource
  *
  * PARAMETERS:  Aml             - Pointer to the raw AML resource descriptor
@@ -273,6 +371,7 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
          * Examine the large/small bit in the resource header
          */
         if (resource_type & ACPI_RESOURCE_NAME_LARGE) {
+
                 /* Verify the large resource type (name) against the max */
 
                 if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) {
@@ -376,6 +475,7 @@ u8 acpi_ut_get_resource_type(void *aml)
          * Examine the large/small bit in the resource header
          */
         if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) {
+
                 /* Large Resource Type -- bits 6:0 contain the name */
 
                 return (ACPI_GET8(aml));
@@ -411,6 +511,7 @@ u16 acpi_ut_get_resource_length(void *aml)
          * Examine the large/small bit in the resource header
          */
         if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) {
+
                 /* Large Resource type -- bytes 1-2 contain the 16-bit length */
 
                 ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1));
@@ -495,60 +596,21 @@ acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc,
                              u8 ** end_tag)
 {
         acpi_status status;
-        u8 *aml;
-        u8 *end_aml;
-
-        ACPI_FUNCTION_TRACE("ut_get_resource_end_tag");
 
-        /* Get start and end pointers */
-
-        aml = obj_desc->buffer.pointer;
-        end_aml = aml + obj_desc->buffer.length;
+        ACPI_FUNCTION_TRACE(ut_get_resource_end_tag);
 
         /* Allow a buffer length of zero */
 
         if (!obj_desc->buffer.length) {
-                *end_tag = aml;
+                *end_tag = obj_desc->buffer.pointer;
                 return_ACPI_STATUS(AE_OK);
         }
 
-        /* Walk the resource template, one descriptor per iteration */
-
-        while (aml < end_aml) {
-                /* Validate the Resource Type and Resource Length */
-
-                status = acpi_ut_validate_resource(aml, NULL);
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-
-                /* end_tag resource indicates the end of the resource template */
-
-                if (acpi_ut_get_resource_type(aml) ==
-                    ACPI_RESOURCE_NAME_END_TAG) {
-                        /*
-                         * There must be at least one more byte in the buffer for
-                         * the 2nd byte of the end_tag
-                         */
-                        if ((aml + 1) >= end_aml) {
-                                return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
-                        }
-
-                        /* Return the pointer to the end_tag */
-
-                        *end_tag = aml;
-                        return_ACPI_STATUS(AE_OK);
-                }
-
-                /*
-                 * Point to the next resource descriptor in the AML buffer. The
-                 * descriptor length is guaranteed to be non-zero by resource
-                 * validation above.
-                 */
-                aml += acpi_ut_get_descriptor_length(aml);
-        }
+        /* Validate the template and get a pointer to the end_tag */
 
-        /* Did not find an end_tag resource descriptor */
+        status = acpi_ut_walk_aml_resources(obj_desc->buffer.pointer,
+                                            obj_desc->buffer.length, NULL,
+                                            (void **)end_tag);
 
-        return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+        return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/utilities/utstate.c b/drivers/acpi/utilities/utstate.c
index 4b134a722907..0f5c5bb5deff 100644
--- a/drivers/acpi/utilities/utstate.c
+++ b/drivers/acpi/utilities/utstate.c
@@ -96,7 +96,7 @@ void
 acpi_ut_push_generic_state(union acpi_generic_state **list_head,
                            union acpi_generic_state *state)
 {
-        ACPI_FUNCTION_TRACE("ut_push_generic_state");
+        ACPI_FUNCTION_TRACE(ut_push_generic_state);
 
         /* Push the state object onto the front of the list (stack) */
 
@@ -123,12 +123,13 @@ union acpi_generic_state *acpi_ut_pop_generic_state(union acpi_generic_state
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_TRACE("ut_pop_generic_state");
+        ACPI_FUNCTION_TRACE(ut_pop_generic_state);
 
         /* Remove the state object at the head of the list (stack) */
 
         state = *list_head;
         if (state) {
+
                 /* Update the list head */
 
                 *list_head = state->common.next;
@@ -158,9 +159,10 @@ union acpi_generic_state *acpi_ut_create_generic_state(void)
 
         state = acpi_os_acquire_object(acpi_gbl_state_cache);
         if (state) {
+
                 /* Initialize */
                 memset(state, 0, sizeof(union acpi_generic_state));
-                state->common.data_type = ACPI_DESC_TYPE_STATE;
+                state->common.descriptor_type = ACPI_DESC_TYPE_STATE;
         }
 
         return (state);
@@ -183,7 +185,7 @@ struct acpi_thread_state *acpi_ut_create_thread_state(void)
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_TRACE("ut_create_thread_state");
+        ACPI_FUNCTION_TRACE(ut_create_thread_state);
 
         /* Create the generic state object */
 
@@ -194,7 +196,7 @@ struct acpi_thread_state *acpi_ut_create_thread_state(void)
 
         /* Init fields specific to the update struct */
 
-        state->common.data_type = ACPI_DESC_TYPE_STATE_THREAD;
+        state->common.descriptor_type = ACPI_DESC_TYPE_STATE_THREAD;
         state->thread.thread_id = acpi_os_get_thread_id();
 
         return_PTR((struct acpi_thread_state *)state);
@@ -220,7 +222,7 @@ union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_TRACE_PTR("ut_create_update_state", object);
+        ACPI_FUNCTION_TRACE_PTR(ut_create_update_state, object);
 
         /* Create the generic state object */
 
@@ -231,7 +233,7 @@ union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object
 
         /* Init fields specific to the update struct */
 
-        state->common.data_type = ACPI_DESC_TYPE_STATE_UPDATE;
+        state->common.descriptor_type = ACPI_DESC_TYPE_STATE_UPDATE;
         state->update.object = object;
         state->update.value = action;
 
@@ -257,7 +259,7 @@ union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object,
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_TRACE_PTR("ut_create_pkg_state", internal_object);
+        ACPI_FUNCTION_TRACE_PTR(ut_create_pkg_state, internal_object);
 
         /* Create the generic state object */
 
@@ -268,7 +270,7 @@ union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object,
 
         /* Init fields specific to the update struct */
 
-        state->common.data_type = ACPI_DESC_TYPE_STATE_PACKAGE;
+        state->common.descriptor_type = ACPI_DESC_TYPE_STATE_PACKAGE;
         state->pkg.source_object = (union acpi_operand_object *)internal_object;
         state->pkg.dest_object = external_object;
         state->pkg.index = index;
@@ -294,7 +296,7 @@ union acpi_generic_state *acpi_ut_create_control_state(void)
 {
         union acpi_generic_state *state;
 
-        ACPI_FUNCTION_TRACE("ut_create_control_state");
+        ACPI_FUNCTION_TRACE(ut_create_control_state);
 
         /* Create the generic state object */
 
@@ -305,7 +307,7 @@ union acpi_generic_state *acpi_ut_create_control_state(void)
 
         /* Init fields specific to the control struct */
 
-        state->common.data_type = ACPI_DESC_TYPE_STATE_CONTROL;
+        state->common.descriptor_type = ACPI_DESC_TYPE_STATE_CONTROL;
         state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING;
 
         return_PTR(state);
@@ -319,15 +321,19 @@ union acpi_generic_state *acpi_ut_create_control_state(void)
  *
  * RETURN:      None
  *
- * DESCRIPTION: Put a state object back into the global state cache.  The object
- *              is not actually freed at this time.
+ * DESCRIPTION: Release a state object to the state cache. NULL state objects
+ *              are ignored.
  *
  ******************************************************************************/
 
 void acpi_ut_delete_generic_state(union acpi_generic_state *state)
 {
-        ACPI_FUNCTION_TRACE("ut_delete_generic_state");
+        ACPI_FUNCTION_TRACE(ut_delete_generic_state);
+
+        /* Ignore null state */
 
-        (void)acpi_os_release_object(acpi_gbl_state_cache, state);
+        if (state) {
+                (void)acpi_os_release_object(acpi_gbl_state_cache, state);
+        }
         return_VOID;
 }
diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c
index 308a960871be..3538f69c82a1 100644
--- a/drivers/acpi/utilities/utxface.c
+++ b/drivers/acpi/utilities/utxface.c
@@ -41,8 +41,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/module.h>
-
 #include <acpi/acpi.h>
 #include <acpi/acevents.h>
 #include <acpi/acnamesp.h>
@@ -67,7 +65,7 @@ acpi_status acpi_initialize_subsystem(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_initialize_subsystem");
+        ACPI_FUNCTION_TRACE(acpi_initialize_subsystem);
 
         ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace());
 
@@ -109,6 +107,8 @@ acpi_status acpi_initialize_subsystem(void)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_initialize_subsystem)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enable_subsystem
@@ -121,12 +121,11 @@ acpi_status acpi_initialize_subsystem(void)
  *              Puts system into ACPI mode if it isn't already.
  *
  ******************************************************************************/
-
 acpi_status acpi_enable_subsystem(u32 flags)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("acpi_enable_subsystem");
+        ACPI_FUNCTION_TRACE(acpi_enable_subsystem);
 
         /*
          * We must initialize the hardware before we can enable ACPI.
@@ -152,7 +151,7 @@ acpi_status acpi_enable_subsystem(u32 flags)
 
                 status = acpi_enable();
                 if (ACPI_FAILURE(status)) {
-                        ACPI_WARNING((AE_INFO, "acpi_enable failed"));
+                        ACPI_WARNING((AE_INFO, "AcpiEnable failed"));
                         return_ACPI_STATUS(status);
                 }
         }
@@ -229,6 +228,8 @@ acpi_status acpi_enable_subsystem(u32 flags)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_enable_subsystem)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_initialize_objects
@@ -241,12 +242,11 @@ acpi_status acpi_enable_subsystem(u32 flags)
  *              objects and executing AML code for Regions, buffers, etc.
  *
  ******************************************************************************/
-
 acpi_status acpi_initialize_objects(u32 flags)
 {
         acpi_status status = AE_OK;
 
-        ACPI_FUNCTION_TRACE("acpi_initialize_objects");
+        ACPI_FUNCTION_TRACE(acpi_initialize_objects);
 
         /*
          * Run all _REG methods
@@ -257,7 +257,7 @@ acpi_status acpi_initialize_objects(u32 flags)
          */
         if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "[Init] Executing _REG op_region methods\n"));
+                                  "[Init] Executing _REG OpRegion methods\n"));
 
                 status = acpi_ev_initialize_op_regions();
                 if (ACPI_FAILURE(status)) {
@@ -305,6 +305,8 @@ acpi_status acpi_initialize_objects(u32 flags)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_initialize_objects)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_terminate
@@ -316,12 +318,11 @@ acpi_status acpi_initialize_objects(u32 flags)
  * DESCRIPTION: Shutdown the ACPI subsystem.  Release all resources.
  *
  ******************************************************************************/
-
 acpi_status acpi_terminate(void)
 {
         acpi_status status;
 
-        ACPI_FUNCTION_TRACE("acpi_terminate");
+        ACPI_FUNCTION_TRACE(acpi_terminate);
 
         /* Terminate the AML Debugger if present */
 
@@ -348,6 +349,8 @@ acpi_status acpi_terminate(void)
         return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_terminate)
+
 #ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
@@ -362,7 +365,6 @@ acpi_status acpi_terminate(void)
  *              initialized successfully.
  *
  ******************************************************************************/
-
 acpi_status acpi_subsystem_status(void)
 {
 
@@ -373,6 +375,8 @@ acpi_status acpi_subsystem_status(void)
         }
 }
 
+ACPI_EXPORT_SYMBOL(acpi_subsystem_status)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_system_info
@@ -390,14 +394,13 @@ acpi_status acpi_subsystem_status(void)
  *              and the value of out_buffer is undefined.
  *
  ******************************************************************************/
-
 acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer)
 {
         struct acpi_system_info *info_ptr;
         acpi_status status;
         u32 i;
 
-        ACPI_FUNCTION_TRACE("acpi_get_system_info");
+        ACPI_FUNCTION_TRACE(acpi_get_system_info);
 
         /* Parameter validation */
 
@@ -448,15 +451,15 @@ acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer)
 
         /* Current status of the ACPI tables, per table type */
 
-        info_ptr->num_table_types = NUM_ACPI_TABLE_TYPES;
-        for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) {
+        info_ptr->num_table_types = ACPI_TABLE_ID_MAX + 1;
+        for (i = 0; i < (ACPI_TABLE_ID_MAX + 1); i++) {
                 info_ptr->table_info[i].count = acpi_gbl_table_lists[i].count;
         }
 
         return_ACPI_STATUS(AE_OK);
 }
 
-EXPORT_SYMBOL(acpi_get_system_info);
+ACPI_EXPORT_SYMBOL(acpi_get_system_info)
 
 /*****************************************************************************
  *
@@ -472,7 +475,6 @@ EXPORT_SYMBOL(acpi_get_system_info);
  * TBD: When a second function is added, must save the Function also.
  *
  ****************************************************************************/
-
 acpi_status
 acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
 {
@@ -489,6 +491,7 @@ acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
         return AE_OK;
 }
 
+ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler)
 #endif                          /*  ACPI_FUTURE_USAGE  */
 
 /*****************************************************************************
@@ -502,10 +505,9 @@ acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
  * DESCRIPTION: Empty all caches (delete the cached objects)
  *
  ****************************************************************************/
-
 acpi_status acpi_purge_cached_objects(void)
 {
-        ACPI_FUNCTION_TRACE("acpi_purge_cached_objects");
+        ACPI_FUNCTION_TRACE(acpi_purge_cached_objects);
 
         (void)acpi_os_purge_cache(acpi_gbl_state_cache);
         (void)acpi_os_purge_cache(acpi_gbl_operand_cache);
@@ -513,3 +515,5 @@ acpi_status acpi_purge_cached_objects(void)
         (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache);
         return_ACPI_STATUS(AE_OK);
 }
+
+ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects)
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 6458c47f7ac2..6b516852ac12 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -273,11 +273,13 @@ acpi_evaluate_integer(acpi_handle handle,
         status = acpi_evaluate_object(handle, pathname, arguments, &buffer);
         if (ACPI_FAILURE(status)) {
                 acpi_util_eval_error(handle, pathname, status);
+                kfree(element);
                 return_ACPI_STATUS(status);
         }
 
         if (element->type != ACPI_TYPE_INTEGER) {
                 acpi_util_eval_error(handle, pathname, AE_BAD_DATA);
+                kfree(element);
                 return_ACPI_STATUS(AE_BAD_DATA);
         }
 
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index bd4887518373..86531ab4ee55 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -323,7 +323,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
         if (!ACPI_SUCCESS(status))
                 return_VALUE(status);
         obj = (union acpi_object *)buffer.pointer;
-        if (!obj && (obj->type != ACPI_TYPE_PACKAGE)) {
+        if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _BCL data\n"));
                 status = -EFAULT;
                 goto err;
@@ -1294,7 +1294,7 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
                               struct acpi_video_bus *video)
 {
         unsigned long device_id;
-        int status, result;
+        int status;
         struct acpi_video_device *data;
 
         ACPI_FUNCTION_TRACE("acpi_video_bus_get_one_device");
@@ -1346,8 +1346,11 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
                 if (ACPI_FAILURE(status)) {
                         ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                           "Error installing notify handler\n"));
-                        result = -ENODEV;
-                        goto end;
+                        if(data->brightness)
+                                kfree(data->brightness->levels);
+                        kfree(data->brightness);
+                        kfree(data);
+                        return -ENODEV;
                 }
 
                 down(&video->sem);
@@ -1359,7 +1362,6 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
                 return_VALUE(0);
         }
 
-      end:
         return_VALUE(-ENOENT);
 }
 
@@ -1643,8 +1645,9 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
                         printk(KERN_WARNING PREFIX
                                "hhuuhhuu bug in acpi video driver.\n");
 
+                if (data->brightness);
+                        kfree(data->brightness->levels);
                 kfree(data->brightness);
-
                 kfree(data);
         }
 
@@ -1785,6 +1788,10 @@ static int acpi_video_bus_add(struct acpi_device *device)
         if (ACPI_FAILURE(status)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                   "Error installing notify handler\n"));
+                acpi_video_bus_stop_devices(video);
+                acpi_video_bus_put_devices(video);
+                kfree(video->attached_array);
+                acpi_video_bus_remove_fs(device);
                 result = -ENODEV;
                 goto end;
         }
@@ -1796,10 +1803,8 @@ static int acpi_video_bus_add(struct acpi_device *device)
                video->flags.post ? "yes" : "no");
 
       end:
-        if (result) {
-                acpi_video_bus_remove_fs(device);
+        if (result)
                 kfree(video);
-        }
 
         return_VALUE(result);
 }