examples/l2fwd-cat: fix NUMA check of port and core

[ upstream commit 59a50c6 ]

According to the comments and logging, the author just hope user to use
the core and device which are in the same numa node for optimal
performance. If not, A warning gives out.

This patch fixes the check for a device on the node 0.

Fixes: f6baccb ("examples/l2fwd-cat: add sample application for PQoS CAT and CDP")

Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

examples/l2fwd-cat/l2fwd-cat.c

@@ -107,7 +107,7 @@ lcore_main(void)
 	 * for best performance.
 	 */
 	RTE_ETH_FOREACH_DEV(port)
-		if (rte_eth_dev_socket_id(port) > 0 &&
+		if (rte_eth_dev_socket_id(port) >= 0 &&
 				rte_eth_dev_socket_id(port) !=
 						(int)rte_socket_id())
 			printf("WARNING, port %u is on remote NUMA node to "