X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=examples%2Fl2fwd%2Fmain.c;h=e4a4a7c36c5df2428c6e735ea97e2e81e6825c29;hb=ba2f43464ed53fd1358cf7b1f483103c616f341c;hp=6c07ed43e1030988958a5825efabc1850a3133f3;hpb=867a6c66ecf3d88e76367254e79bb9e7b936a830;p=dpdk.git

diff --git a/examples/l2fwd/main.c b/examples/l2fwd/main.c
index 6c07ed43e1..e4a4a7c36c 100644
--- a/examples/l2fwd/main.c
+++ b/examples/l2fwd/main.c
@@ -549,6 +549,11 @@ main(int argc, char **argv)
 	if (nb_ports == 0)
 		rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 
+	/* check port mask to possible port mask */
+	if (l2fwd_enabled_port_mask & ~((1 << nb_ports) - 1))
+		rte_exit(EXIT_FAILURE, "Invalid portmask; possible (0x%x)\n",
+			(1 << nb_ports) - 1);
+
 	/* reset l2fwd_dst_ports */
 	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 		l2fwd_dst_ports[portid] = 0;