From db6784f2008c671b80f33ad21022a008987cea9c Mon Sep 17 00:00:00 2001
From: "George V. Neville-Neil" <gnn@FreeBSD.org>
Date: Thu, 12 Feb 2015 23:00:31 +0000
Subject: [PATCH] Silence a warning.

---
 tools/tools/netmap/pkt-gen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tools/netmap/pkt-gen.c b/tools/tools/netmap/pkt-gen.c
index 6063f0470eb..3afb326e0ed 100644
--- a/tools/tools/netmap/pkt-gen.c
+++ b/tools/tools/netmap/pkt-gen.c
@@ -1817,7 +1817,7 @@ main(int arc, char **argv)
 
 	}
 
-	if (g.ifname == NULL) {
+	if (strlen(g.ifname) <=0 ) {
 		D("missing ifname");
 		usage();
 	}