1 files changed, 17 insertions, 4 deletions

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index a9377c0083ad..e16610c208c9 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -82,6 +82,10 @@
         TRACE_EVENT(name, PARAMS(proto), PARAMS(args),                  \
                 PARAMS(tstruct), PARAMS(assign), PARAMS(print))         \
 
+#undef TRACE_EVENT_FLAGS
+#define TRACE_EVENT_FLAGS(name, value)                                  \
+        __TRACE_EVENT_FLAGS(name, value)
+
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 
 
@@ -129,6 +133,9 @@
 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  \
         DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
 
+#undef TRACE_EVENT_FLAGS
+#define TRACE_EVENT_FLAGS(event, flag)
+
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 
 /*
@@ -289,13 +296,19 @@ static struct trace_event_functions ftrace_event_type_funcs_##call = {	\
 
 #undef __array
 #define __array(type, item, len)                                        \
-        BUILD_BUG_ON(len > MAX_FILTER_STR_VAL);                         \
-        ret = trace_define_field(event_call, #type "[" #len "]", #item, \
+        do {                                                            \
+                mutex_lock(&event_storage_mutex);                       \
+                BUILD_BUG_ON(len > MAX_FILTER_STR_VAL);                 \
+                snprintf(event_storage, sizeof(event_storage),          \
+                         "%s[%d]", #type, len);                         \
+                ret = trace_define_field(event_call, event_storage, #item, \
                                  offsetof(typeof(field), item),         \
                                  sizeof(field.item),                    \
                                  is_signed_type(type), FILTER_OTHER);   \
-        if (ret)                                                        \
-                return ret;
+                mutex_unlock(&event_storage_mutex);                     \
+                if (ret)                                                \
+                        return ret;                                     \
+        } while (0);
 
 #undef __dynamic_array
 #define __dynamic_array(type, item, len)                                       \