[PATCH] trace-cmd: Suppress trace library warnings

["Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>]

Suppress all warnings from libtraceevent, libtracefs and libtracecmd if
the trace-cmd application does not run in debug mode.

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 tracecmd/trace-cmd.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tracecmd/trace-cmd.c b/tracecmd/trace-cmd.c
index 7376c5a5..7de0671e 100644
--- a/tracecmd/trace-cmd.c
+++ b/tracecmd/trace-cmd.c
@@ -35,6 +35,23 @@ void warning(const char *fmt, ...)
 	fprintf(stderr, "\n");
 }
 
+int tep_vwarning(const char *name, const char *fmt, va_list ap)
+{
+	int ret = errno;
+
+	if (!tracecmd_get_debug())
+		return ret;
+
+	if (errno)
+		perror(name);
+
+	fprintf(stderr, "  ");
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, "\n");
+
+	return ret;
+}
+
 void pr_stat(const char *fmt, ...)
 {
 	va_list ap;
-- 
2.30.2