1 files changed, 18 insertions, 26 deletions

diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index 89cee88dd2a5..e3409b6cefbd 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -1,6 +1,6 @@
 /******************************************************************************
  *
- * Name: acenv.h - Generation environment specific items
+ * Name: acenv.h - Host and compiler configuration
  *
  *****************************************************************************/
 
@@ -60,14 +60,12 @@
  *
  *****************************************************************************/
 
+/* Linkable ACPICA library */
 #ifdef ACPI_LIBRARY
-/*
- * Note: The non-debug version of the acpi_library does not contain any
- * debug support, for minimal size. The debug version uses ACPI_FULL_DEBUG
- */
 #define ACPI_USE_LOCAL_CACHE
 #endif
 
+/* iASL configuration */
 #ifdef ACPI_ASL_COMPILER
 #define ACPI_DEBUG_OUTPUT
 #define ACPI_APPLICATION
@@ -77,6 +75,7 @@
 #define ACPI_DATA_TABLE_DISASSEMBLY
 #endif
 
+/* acpi_exec configuration. Multithreaded with full AML debugger */
 #ifdef ACPI_EXEC_APP
 #undef DEBUGGER_THREADING
 #define DEBUGGER_THREADING      DEBUGGER_SINGLE_THREADED
@@ -87,11 +86,13 @@
 #define ACPI_DBG_TRACK_ALLOCATIONS
 #endif
 
+/* Common for all ACPICA applications */
 #ifdef ACPI_APPLICATION
 #define ACPI_USE_SYSTEM_CLIBRARY
 #define ACPI_USE_LOCAL_CACHE
 #endif
 
+/* Common debug support */
 #ifdef ACPI_FULL_DEBUG
 #define ACPI_DEBUGGER
 #define ACPI_DEBUG_OUTPUT
@@ -186,9 +187,7 @@
  *
  *****************************************************************************/
 
-/*
- * Are mutexes supported by the host? default is no, use binary semaphores.
- */
+/* Type of mutex supported by host. Default is binary semaphores. */
 #ifndef ACPI_MUTEX_TYPE
 #define ACPI_MUTEX_TYPE             ACPI_BINARY_SEMAPHORE
 #endif
@@ -230,9 +229,7 @@
  * We want to keep these to a minimum.
  */
 #ifdef ACPI_USE_STANDARD_HEADERS
-/*
- * Use the standard headers from the standard locations
- */
+/* Use the standard headers from the standard locations */
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
@@ -240,9 +237,7 @@
 
 #endif                          /* ACPI_USE_STANDARD_HEADERS */
 
-/*
- * We will be linking to the standard Clib functions
- */
+/* We will be linking to the standard Clib functions */
 #define ACPI_STRSTR(s1,s2)      strstr((s1), (s2))
 #define ACPI_STRCHR(s1,c)       strchr((s1), (c))
 #define ACPI_STRLEN(s)          (acpi_size) strlen((s))
@@ -274,12 +269,12 @@
  *
  *****************************************************************************/
 
- /*
-  * Use local definitions of C library macros and functions
-  * NOTE: The function implementations may not be as efficient
-  * as an inline or assembly code implementation provided by a
-  * native C library.
-  */
+/*
+ * Use local definitions of C library macros and functions. These function
+ * implementations may not be as efficient as an inline or assembly code
+ * implementation provided by a native C library, but they are functionally
+ * equivalent.
+ */
 
 #ifndef va_arg
 
@@ -288,15 +283,11 @@
 typedef char *va_list;
 #endif                          /* _VALIST */
 
-/*
- * Storage alignment properties
- */
+/* Storage alignment properties */
 #define  _AUPBND                (sizeof (acpi_native_int) - 1)
 #define  _ADNBND                (sizeof (acpi_native_int) - 1)
 
-/*
- * Variable argument list macro definitions
- */
+/* Variable argument list macro definitions */
 #define _bnd(X, bnd)            (((sizeof (X)) + (bnd)) & (~(bnd)))
 #define va_arg(ap, T)           (*(T *)(((ap) += (_bnd (T, _AUPBND))) - (_bnd (T,_ADNBND))))
 #define va_end(ap)              (void) 0
@@ -304,6 +295,7 @@ typedef char *va_list;
 
 #endif                          /* va_arg */
 
+/* Use the local (ACPICA) definitions of the clib functions */
 #define ACPI_STRSTR(s1,s2)      acpi_ut_strstr ((s1), (s2))
 #define ACPI_STRCHR(s1,c)       acpi_ut_strchr ((s1), (c))
 #define ACPI_STRLEN(s)          (acpi_size) acpi_ut_strlen ((s))