Merge commit 'tracing/core' into tracing/kprobes

Conflicts:
	kernel/trace/trace_export.c
	kernel/trace/trace_kprobe.c

Merge reason: This topic branch lacks an important
build fix in tracing/core:

	0dd7b74787eaf7858c6c573353a83c3e2766e674:
	tracing: Fix double CPP substitution in TRACE_EVENT_FN

that prevents from multiple tracepoint headers inclusion crashes.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

1 files changed, 17 insertions, 12 deletions

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index f2bd7a8f8e8b..5d3df2a5049d 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -45,14 +45,15 @@
         };                                                      \
         static struct ftrace_event_call event_##name
 
+#undef __cpparg
+#define __cpparg(arg...) arg
+
 /* Callbacks are meaningless to ftrace. */
 #undef TRACE_EVENT_FN
-#define TRACE_EVENT_FN(name, proto, args, tstruct,              \
-                assign, print, reg, unreg)                      \
-        TRACE_EVENT(name, TP_PROTO(proto), TP_ARGS(args),       \
-                TP_STRUCT__entry(tstruct),                      \
-                TP_fast_assign(assign),                         \
-                TP_printk(print))
+#define TRACE_EVENT_FN(name, proto, args, tstruct,                      \
+                assign, print, reg, unreg)                              \
+        TRACE_EVENT(name, __cpparg(proto), __cpparg(args),              \
+                __cpparg(tstruct), __cpparg(assign), __cpparg(print))   \
 
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 
@@ -459,13 +460,15 @@ static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\
  * {
  *      struct ring_buffer_event *event;
  *      struct ftrace_raw_<call> *entry; <-- defined in stage 1
+ *      struct ring_buffer *buffer;
  *      unsigned long irq_flags;
  *      int pc;
  *
  *      local_save_flags(irq_flags);
  *      pc = preempt_count();
  *
- *      event = trace_current_buffer_lock_reserve(event_<call>.id,
+ *      event = trace_current_buffer_lock_reserve(&buffer,
+ *                                event_<call>.id,
  *                                sizeof(struct ftrace_raw_<call>),
  *                                irq_flags, pc);
  *      if (!event)
@@ -475,7 +478,7 @@ static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\
  *      <assign>;  <-- Here we assign the entries by the __field and
  *                      __array macros.
  *
- *      trace_current_buffer_unlock_commit(event, irq_flags, pc);
+ *      trace_current_buffer_unlock_commit(buffer, event, irq_flags, pc);
  * }
  *
  * static int ftrace_raw_reg_event_<call>(struct ftrace_event_call *unused)
@@ -567,6 +570,7 @@ static void ftrace_raw_event_##call(proto)				\
         struct ftrace_event_call *event_call = &event_##call;           \
         struct ring_buffer_event *event;                                \
         struct ftrace_raw_##call *entry;                                \
+        struct ring_buffer *buffer;                                     \
         unsigned long irq_flags;                                        \
         int __data_size;                                                \
         int pc;                                                         \
@@ -576,7 +580,8 @@ static void ftrace_raw_event_##call(proto)				\
                                                                         \
         __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
                                                                         \
-        event = trace_current_buffer_lock_reserve(event_##call.id,      \
+        event = trace_current_buffer_lock_reserve(&buffer,              \
+                                 event_##call.id,                       \
                                  sizeof(*entry) + __data_size,          \
                                  irq_flags, pc);                        \
         if (!event)                                                     \
@@ -588,8 +593,9 @@ static void ftrace_raw_event_##call(proto)				\
                                                                         \
         { assign; }                                                     \
                                                                         \
-        if (!filter_current_check_discard(event_call, entry, event))    \
-                trace_nowake_buffer_unlock_commit(event, irq_flags, pc); \
+        if (!filter_current_check_discard(buffer, event_call, entry, event)) \
+                trace_nowake_buffer_unlock_commit(buffer,               \
+                                                  event, irq_flags, pc); \
 }                                                                       \
                                                                         \
 static int ftrace_raw_reg_event_##call(struct ftrace_event_call *unused)\
@@ -621,7 +627,6 @@ static int ftrace_raw_init_event_##call(struct ftrace_event_call *unused)\
                 return -ENODEV;                                         \
         event_##call.id = id;                                           \
         INIT_LIST_HEAD(&event_##call.fields);                           \
-        init_preds(&event_##call);                                      \
         return 0;                                                       \
 }                                                                       \
                                                                         \