tracing: Fix anonymous unions in struct ftrace_event_call

gcc <= 4.5.x has significant limitations with respect to initialization
of anonymous unions within structures. They need to be surrounded by
brackets, _and_ they need to be initialized in the same order in which
they appear in the structure declaration.

Link: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10676
Link: http://lkml.kernel.org/r/1397077568-3156-1-git-send-email-mathieu.desnoyers@efficios.com

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 9 insertions, 3 deletions

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 9c44c11cd9bb..0a1a4f7caf09 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -470,8 +470,10 @@ static inline notrace int ftrace_get_offsets_##call(			\
  * };
  *
  * static struct ftrace_event_call event_<call> = {
- *      .tp                     = &__tracepoint_<call>,
  *      .class                  = event_class_<template>,
+ *      {
+ *              .tp                     = &__tracepoint_<call>,
+ *      },
  *      .event                  = &ftrace_event_type_<call>,
  *      .print_fmt              = print_fmt_<call>,
  *      .flags                  = TRACE_EVENT_FL_TRACEPOINT,
@@ -606,8 +608,10 @@ static struct ftrace_event_class __used __refdata event_class_##call = { \
 #define DEFINE_EVENT(template, call, proto, args)                       \
                                                                         \
 static struct ftrace_event_call __used event_##call = {                 \
-        .tp                     = &__tracepoint_##call,                 \
         .class                  = &event_class_##template,              \
+        {                                                               \
+                .tp                     = &__tracepoint_##call,         \
+        },                                                              \
         .event.funcs            = &ftrace_event_type_funcs_##template,  \
         .print_fmt              = print_fmt_##template,                 \
         .flags                  = TRACE_EVENT_FL_TRACEPOINT,            \
@@ -621,8 +625,10 @@ __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
 static const char print_fmt_##call[] = print;                           \
                                                                         \
 static struct ftrace_event_call __used event_##call = {                 \
-        .tp                     = &__tracepoint_##call,                 \
         .class                  = &event_class_##template,              \
+        {                                                               \
+                .tp                     = &__tracepoint_##call,         \
+        },                                                              \
         .event.funcs            = &ftrace_event_type_funcs_##call,      \
         .print_fmt              = print_fmt_##call,                     \
         .flags                  = TRACE_EVENT_FL_TRACEPOINT,            \