4 files changed, 48 insertions, 2 deletions

diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index a7dbb2b882cf..0bb6325508b3 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -318,6 +318,11 @@ acpi_ut_ptr_exit(u32 line_number,
                  const char *module_name, u32 component_id, u8 *ptr);
 
 void
+acpi_ut_str_exit(u32 line_number,
+                 const char *function_name,
+                 const char *module_name, u32 component_id, const char *string);
+
+void
 acpi_ut_debug_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id);
 
 void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 offset);
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 574422205005..84c08539117d 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -562,6 +562,43 @@ acpi_ut_ptr_exit(u32 line_number,
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ut_str_exit
+ *
+ * PARAMETERS:  line_number         - Caller's line number
+ *              function_name       - Caller's procedure name
+ *              module_name         - Caller's module name
+ *              component_id        - Caller's component ID
+ *              string              - String to display
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ *              set in debug_level. Prints exit value also.
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_str_exit(u32 line_number,
+                 const char *function_name,
+                 const char *module_name, u32 component_id, const char *string)
+{
+
+        /* Check if enabled up-front for performance */
+
+        if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+                acpi_debug_print(ACPI_LV_FUNCTIONS,
+                                 line_number, function_name, module_name,
+                                 component_id, "%s %s\n",
+                                 acpi_gbl_function_exit_prefix, string);
+        }
+
+        if (acpi_gbl_nesting_level) {
+                acpi_gbl_nesting_level--;
+        }
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_trace_point
  *
  * PARAMETERS:  type                - Trace event type
diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index efd7988e34cb..15728ad8356b 100644
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -253,7 +253,7 @@ const char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
                 return_PTR("Invalid object");
         }
 
-        return_PTR(acpi_ut_get_type_name(obj_desc->common.type));
+        return_STR(acpi_ut_get_type_name(obj_desc->common.type));
 }
 
 /*******************************************************************************
diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index 34f601e7b88d..48eb4dd99bb1 100644
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -366,7 +366,7 @@
         ACPI_TRACE_ENTRY (name, acpi_ut_trace_u32, u32, value)
 
 #define ACPI_FUNCTION_TRACE_STR(name, string) \
-        ACPI_TRACE_ENTRY (name, acpi_ut_trace_str, char *, string)
+        ACPI_TRACE_ENTRY (name, acpi_ut_trace_str, const char *, string)
 
 #define ACPI_FUNCTION_ENTRY() \
         acpi_ut_track_stack_ptr()
@@ -425,6 +425,9 @@
 #define return_PTR(pointer) \
         ACPI_TRACE_EXIT (acpi_ut_ptr_exit, void *, pointer)
 
+#define return_STR(string) \
+        ACPI_TRACE_EXIT (acpi_ut_str_exit, const char *, string)
+
 #define return_VALUE(value) \
         ACPI_TRACE_EXIT (acpi_ut_value_exit, u64, value)
 
@@ -478,6 +481,7 @@
 #define return_VOID                     return
 #define return_ACPI_STATUS(s)           return(s)
 #define return_PTR(s)                   return(s)
+#define return_STR(s)                   return(s)
 #define return_VALUE(s)                 return(s)
 #define return_UINT8(s)                 return(s)
 #define return_UINT32(s)                return(s)