perf ui/helpline: Introduce ui_helpline__vshow()

[platform/adaptation/renesas_rcar/renesas_kernel.git] / tools / perf / ui / helpline.c

diff --git a/tools/perf/ui/helpline.c b/tools/perf/ui/helpline.c
index a49bcf3..700fb3c 100644 (file)
--- a/tools/perf/ui/helpline.c
+++ b/tools/perf/ui/helpline.c
@@ -16,9 +16,16 @@ static void nop_helpline__push(const char *msg __maybe_unused)
 {
 }
 
+static int nop_helpline__show(const char *fmt __maybe_unused,
+                              va_list ap __maybe_unused)
+{
+       return 0;
+}
+
 static struct ui_helpline default_helpline_fns = {
        .pop    = nop_helpline__pop,
        .push   = nop_helpline__push,
+       .show   = nop_helpline__show,
 };
 
 struct ui_helpline *helpline_fns = &default_helpline_fns;
@@ -59,3 +66,8 @@ void ui_helpline__puts(const char *msg)
        ui_helpline__pop();
        ui_helpline__push(msg);
 }
+
+int ui_helpline__vshow(const char *fmt, va_list ap)
+{
+       return helpline_fns->show(fmt, ap);
+}