tracing: Make filter_check_discard() local

Nothing outside of the tracing directory calls filter_check_discard() or
check_filter_check_discard(). They should not be called by modules. Move
their prototypes into the local tracing header and remove their
EXPORT_SYMBOL() macros.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index 70a181c..bb383af 100644 (file)
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -413,12 +413,6 @@ enum event_trigger_type {
 
 extern int filter_match_preds(struct event_filter *filter, void *rec);
 
-extern int filter_check_discard(struct trace_event_file *file, void *rec,
-                               struct ring_buffer *buffer,
-                               struct ring_buffer_event *event);
-extern int call_filter_check_discard(struct trace_event_call *call, void *rec,
-                                    struct ring_buffer *buffer,
-                                    struct ring_buffer_event *event);
 extern enum event_trigger_type event_triggers_call(struct trace_event_file *file,
                                                   void *rec);
 extern void event_triggers_post_call(struct trace_event_file *file,

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 46028d4..02f5a5f 100644 (file)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -318,7 +318,6 @@ int filter_check_discard(struct trace_event_file *file, void *rec,
 
        return 0;
 }
-EXPORT_SYMBOL_GPL(filter_check_discard);
 
 int call_filter_check_discard(struct trace_event_call *call, void *rec,
                              struct ring_buffer *buffer,
@@ -332,7 +331,6 @@ int call_filter_check_discard(struct trace_event_call *call, void *rec,
 
        return 0;
 }
-EXPORT_SYMBOL_GPL(call_filter_check_discard);
 
 static cycle_t buffer_ftrace_now(struct trace_buffer *buf, int cpu)
 {

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index c0eac7b..ee8691c 100644 (file)
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1065,6 +1065,12 @@ struct trace_subsystem_dir {
        int                             nr_events;
 };
 
+extern int filter_check_discard(struct trace_event_file *file, void *rec,
+                               struct ring_buffer *buffer,
+                               struct ring_buffer_event *event);
+extern int call_filter_check_discard(struct trace_event_call *call, void *rec,
+                                    struct ring_buffer *buffer,
+                                    struct ring_buffer_event *event);
 /*
  * Helper function for event_trigger_unlock_commit{_regs}().
  * If there are event triggers attached to this event that requires