perf ui/helpline: Introduce ui_helpline__vshow()

The ui_helpline__vshow() will be used for pr_* functions.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1352911664-24620-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/ui/gtk/helpline.c b/tools/perf/ui/gtk/helpline.c
index 5db4432..3388cbd 100644
--- a/tools/perf/ui/gtk/helpline.c
+++ b/tools/perf/ui/gtk/helpline.c
@@ -24,17 +24,7 @@
 			   pgctx->statbar_ctx_id, msg);
 }
 
-static struct ui_helpline gtk_helpline_fns = {
-	.pop	= gtk_helpline_pop,
-	.push	= gtk_helpline_push,
-};
-
-void perf_gtk__init_helpline(void)
-{
-	helpline_fns = &gtk_helpline_fns;
-}
-
-int perf_gtk__show_helpline(const char *fmt, va_list ap)
+static int gtk_helpline_show(const char *fmt, va_list ap)
 {
 	int ret;
 	char *ptr;
@@ -54,3 +44,14 @@
 
 	return ret;
 }
+
+static struct ui_helpline gtk_helpline_fns = {
+	.pop	= gtk_helpline_pop,
+	.push	= gtk_helpline_push,
+	.show	= gtk_helpline_show,
+};
+
+void perf_gtk__init_helpline(void)
+{
+	helpline_fns = &gtk_helpline_fns;
+}