On 2015/3/2 22:10, Steven Rostedt wrote:
On Mon, 2 Mar 2015 14:28:54 +0000
Hou Pengyang <[email protected]> wrote:

commit f42c85e74faa422cf0bc747ed808681145448f88 moves tracepoint's ftrace
creation into include/trace/ftrace.h and trace/define_trach.h is deleted

You mean event_trace.h is deleted.
yes, commit f42c85e74faa422cf0bc747ed808681145448f88 refactored code, and event_trace.h was deleted.

as a result. However some comment info does not adapt to the change, which
I think is such a misguiding when reading related code.

This patch fix this comment by moving trace/trace_events.h to TRACE_INCLUDE
(TRACE_INCLUDE_FILE), the macro TRACE_INCLUDE(TRACE_INCLUDE_FILE) is defined
in trace/define_trace.h

Signed-off-by: Hou Pengyang <[email protected]>
---
  include/trace/ftrace.h | 9 ++++++---
  1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 41bf65f..cb78a8b 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -1,7 +1,8 @@
  /*
   * Stage 1 of the trace events.
   *
- * Override the macros in <trace/trace_events.h> to include the following:
+ * Override the macros in TRACE_INCLUDE(TRACE_INCLUDE_FILE) to

I agree that the comment needs updating, but not to this.
TRACE_INCLUDE(TRACE_INCLUDE_FILE) is not very descriptive. Because
nobody understand exactly what that is. Do you?

Change it to:

   Override the macros in the event tracepoint header ...

And do that for the ones below too. This is more descriptive than just
describing what the code is literally doing.

-- Steve

To be more descriptive, how about "Override the macros in the event tracepoint header <trace/events/XXX.h> ..." ? since, tracepoint headers have already been moved to trace/events/ .

+ * include the following:
   *
   * struct ftrace_raw_<call> {
   *    struct trace_entry              ent;
@@ -170,7 +171,8 @@
  /*
   * Stage 3 of the trace events.
   *
- * Override the macros in <trace/trace_events.h> to include the following:
+ * Override the macros in TRACE_INCLUDE(TRACE_INCLUDE_FILE) to
+ * include the following:
   *
   * enum print_line_t
   * ftrace_raw_output_<call>(struct trace_iterator *iter, int flags)
@@ -479,7 +481,8 @@ static inline notrace int ftrace_get_offsets_##call(        
                \
  /*
   * Stage 4 of the trace events.
   *
- * Override the macros in <trace/trace_events.h> to include the following:
+ * Override the macros in TRACE_INCLUDE(TRACE_INCLUDE_FILE) to
+ * include the following:
   *
   * For those macros defined with TRACE_EVENT:
   *


.



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