3 files changed, 24 insertions, 2 deletions

diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index 9c4bd220c44f..86fd142f4bf3 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -1192,6 +1192,7 @@ static int asus_hotk_get_info(void)
                         break;
                 default:
                         kfree(model);
+                        model = NULL;
                         break;
                 }
         }
diff --git a/drivers/acpi/resources/rsxface.c b/drivers/acpi/resources/rsxface.c
index f63813a358c5..4c3fd4cdaf73 100644
--- a/drivers/acpi/resources/rsxface.c
+++ b/drivers/acpi/resources/rsxface.c
@@ -474,8 +474,6 @@ acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
         return (AE_CTRL_TERMINATE);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_rs_match_vendor_resource)
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_walk_resources
diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c
index 5b302c4e293f..a9e3331fee5d 100644
--- a/drivers/acpi/tables/tbxface.c
+++ b/drivers/acpi/tables/tbxface.c
@@ -52,6 +52,8 @@ ACPI_MODULE_NAME("tbxface")
 /* Local prototypes */
 static acpi_status acpi_tb_load_namespace(void);
 
+static int no_auto_ssdt;
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_allocate_root_table
@@ -536,6 +538,10 @@ static acpi_status acpi_tb_load_namespace(void)
 
                 ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS"));
                 acpi_tb_print_table_header(0, table);
+
+                if (no_auto_ssdt == 0) {
+                        printk(KERN_WARNING "ACPI: DSDT override uses original SSDTs unless \"acpi_no_auto_ssdt\"");
+                }
         }
 
         status =
@@ -577,6 +583,11 @@ static acpi_status acpi_tb_load_namespace(void)
                         continue;
                 }
 
+                if (no_auto_ssdt) {
+                        printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n");
+                        continue;
+                }
+
                 /* Ignore errors while loading tables, get as many as possible */
 
                 (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
@@ -622,3 +633,15 @@ acpi_status acpi_load_tables(void)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_load_tables)
+
+
+static int __init acpi_no_auto_ssdt_setup(char *s) {
+
+        printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n");
+
+        no_auto_ssdt = 1;
+
+        return 1;
+}
+
+__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);