ACPICA: Fix: Predefined object repair executed only once

This fixes a problem where the code that attempts to repair/convert
an object of incorrect type is only executed on the first time the
predefined method is called. The mechanism that disables warnings
on subsequent calls was interfering with the repair mechanism.
ACPICA BZ 781.

http://acpica.org/bugzilla/show_bug.cgi?id=781

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 51 insertions, 6 deletions

diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index 9cd65334ca75..5bd29606dc61 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -50,6 +50,11 @@
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utmisc")
 
+/*
+ * Common suffix for messages
+ */
+#define ACPI_COMMON_MSG_SUFFIX \
+        acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name, line_number)
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_validate_exception
@@ -1065,8 +1070,7 @@ acpi_error(const char *module_name, u32 line_number, const char *format, ...)
 
         va_start(args, format);
         acpi_os_vprintf(format, args);
-        acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name,
-                       line_number);
+        ACPI_COMMON_MSG_SUFFIX;
         va_end(args);
 }
 
@@ -1080,8 +1084,7 @@ acpi_exception(const char *module_name,
 
         va_start(args, format);
         acpi_os_vprintf(format, args);
-        acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name,
-                       line_number);
+        ACPI_COMMON_MSG_SUFFIX;
         va_end(args);
 }
 
@@ -1094,8 +1097,7 @@ acpi_warning(const char *module_name, u32 line_number, const char *format, ...)
 
         va_start(args, format);
         acpi_os_vprintf(format, args);
-        acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name,
-                       line_number);
+        ACPI_COMMON_MSG_SUFFIX;
         va_end(args);
 }
 
@@ -1116,3 +1118,46 @@ ACPI_EXPORT_SYMBOL(acpi_error)
 ACPI_EXPORT_SYMBOL(acpi_exception)
 ACPI_EXPORT_SYMBOL(acpi_warning)
 ACPI_EXPORT_SYMBOL(acpi_info)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_predefined_warning
+ *
+ * PARAMETERS:  module_name     - Caller's module name (for error output)
+ *              line_number     - Caller's line number (for error output)
+ *              Pathname        - Full pathname to the node
+ *              node_flags      - From Namespace node for the method/object
+ *              Format          - Printf format string + additional args
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Warnings for the predefined validation module. Messages are
+ *              only emitted the first time a problem with a particular
+ *              method/object is detected. This prevents a flood of error
+ *              messages for methods that are repeatedly evaluated.
+ *
+******************************************************************************/
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_ut_predefined_warning(const char *module_name,
+                           u32 line_number,
+                           char *pathname,
+                           u8 node_flags, const char *format, ...)
+{
+        va_list args;
+
+        /*
+         * Warning messages for this method/object will be disabled after the
+         * first time a validation fails or an object is successfully repaired.
+         */
+        if (node_flags & ANOBJ_EVALUATED) {
+                return;
+        }
+
+        acpi_os_printf("ACPI Warning for %s: ", pathname);
+
+        va_start(args, format);
+        acpi_os_vprintf(format, args);
+        ACPI_COMMON_MSG_SUFFIX;
+        va_end(args);
+}