[PATCH] [2/2] Allow override acpi_gbl_pre_defined_names (aka change that _OS).

@@ -201,6 +201,8 @@
 	return AE_OK;
 }
 
+static char acpi_os_name[200] = ACPI_OS_NAME;
+
 acpi_status
 acpi_os_predefined_override (const struct acpi_predefined_names *init_val,
 		             acpi_string *new_val)

@@ -209,6 +211,9 @@
 		return AE_BAD_PARAMETER;
 
 	*new_val = NULL;
+	if (!memcmp (init_val->name, "_OS_", 4))
+		*new_val = acpi_os_name;
+
 	return AE_OK;
 }
 

@@ -848,3 +853,28 @@
 
 	return AE_OK;
 }
+
+int __init
+acpi_os_name_setup(char *str)
+{
+	char *p = acpi_os_name;
+	int count = 199;
+
+	if (!str || !*str)
+		return 0;
+
+	for (; count-- && str && *str; str++) {
+		if (isalnum(*str) || *str == ' ')
+			*p++ = *str;
+		else if (*str == '\'' || *str == '"')
+			continue;
+		else
+			break;
+	}
+	*p = 0;
+
+	return 1;
+		
+}
+
+__setup("acpi_os_name=", acpi_os_name_setup);