examples: add eal cleanup to examples

According to the programming guide, the rte_eal_init should be used pairs
with rte_eal_cleanup.

This patch add rte_eal_cleanup to examples to encourage new users of
DPDK to use it.

Fixes: aec9c13c52 ("eal: add function to release internal resources")
Fixes: 3d0fad56b7 ("examples/fips_validation: add crypto FIPS application")
Fixes: c8e6ceeceb ("examples/ioat: add new sample app for ioat driver")
Fixes: 4ff457986f ("examples/l2fwd-event: add default poll mode routines")
Fixes: 08bd1a1744 ("examples/l3fwd-graph: add graph-based l3fwd skeleton")
Fixes: c5eebf85ba ("examples/ntb: add example for NTB")
Fixes: b77f660028 ("examples/pipeline: add new example application")
Fixes: edbed86d1c ("examples/vdpa: introduce a new sample for vDPA")
Fixes: c19beb3f38 ("examples/vhost_blk: introduce vhost storage sample")
Fixes: f5188211c7 ("examples/vhost_crypto: add sample application")
Cc: stable@dpdk.org

Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>

examples/bbdev_app/main.c

@@ -1195,5 +1195,8 @@ main(int argc, char **argv)
 		ret |= rte_eal_wait_lcore(lcore_id);
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return ret;
 }

examples/bond/main.c

@@ -876,5 +876,9 @@ main(int argc, char *argv[])
 	prompt(NULL);
 
 	rte_delay_ms(100);
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/cmdline/main.c

@@ -36,5 +36,8 @@ int main(int argc, char **argv)
 	cmdline_interact(cl);
 	cmdline_stdin_exit(cl);
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/distributor/main.c

@@ -932,5 +932,8 @@ main(int argc, char *argv[])
 	rte_free(pd);
 	rte_free(pr);
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/ethtool/ethtool-app/main.c

@@ -299,5 +299,8 @@ int main(int argc, char **argv)
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/fips_validation/main.c

@@ -501,6 +501,9 @@ main(int argc, char *argv[])
 	fips_test_clear();
 	cryptodev_fips_validate_app_uninit();
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return ret;
 
 }

examples/flow_classify/flow_classify.c

@@ -853,5 +853,8 @@ main(int argc, char *argv[])
 	/* Call lcore_main on the main core only. */
 	lcore_main(cls_app);
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/flow_filtering/main.c

@@ -258,5 +258,10 @@ main(int argc, char **argv)
 		rte_exit(EXIT_FAILURE, "error in creating flow");
 	}
 
-	return main_loop();
+	ret = main_loop();
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
+	return ret;
 }

examples/helloworld/main.c

@@ -43,5 +43,9 @@ main(int argc, char **argv)
 	lcore_hello(NULL);
 
 	rte_eal_mp_wait_lcore();
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/ioat/ioatfwd.c

@@ -1011,6 +1011,9 @@ main(int argc, char **argv)
 			rte_ring_free(cfg.ports[i].rx_to_tx_ring);
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	printf("Bye...\n");
 	return 0;
 }

examples/ip_fragmentation/main.c

@@ -1075,5 +1075,8 @@ main(int argc, char **argv)
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/ip_reassembly/main.c

@@ -1201,5 +1201,8 @@ main(int argc, char **argv)
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/ipsec-secgw/ipsec-secgw.c

@@ -3076,6 +3076,9 @@ main(int32_t argc, char **argv)
 		rte_eth_dev_close(portid);
 		printf(" Done\n");
 	}
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
 	printf("Bye...\n");
 
 	return 0;

examples/ipv4_multicast/main.c

@@ -805,5 +805,8 @@ main(int argc, char **argv)
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/kni/main.c

@@ -1140,5 +1140,8 @@ main(int argc, char** argv)
 			kni_port_params_array[i] = NULL;
 		}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/l2fwd-cat/l2fwd-cat.c

@@ -201,5 +201,8 @@ main(int argc, char *argv[])
 	/* Call lcore_main on the main core only. */
 	lcore_main();
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/l2fwd-crypto/main.c

@@ -2835,5 +2835,8 @@ main(int argc, char **argv)
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/l2fwd-event/main.c

@@ -716,6 +716,9 @@ main(int argc, char **argv)
 			printf(" Done\n");
 		}
 	}
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
 	printf("Bye...\n");
 
 	return 0;

examples/l2fwd-jobstats/main.c

@@ -1022,5 +1022,8 @@ main(int argc, char **argv)
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/l2fwd-keepalive/main.c

@@ -817,5 +817,9 @@ main(int argc, char **argv)
 
 	if (ka_shm != NULL)
 		rte_keepalive_shm_cleanup(ka_shm);
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/l2fwd/main.c

@@ -902,6 +902,9 @@ main(int argc, char **argv)
 		rte_eth_dev_close(portid);
 		printf(" Done\n");
 	}
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
 	printf("Bye...\n");
 
 	return ret;

examples/l3fwd-acl/main.c

@@ -2258,5 +2258,8 @@ main(int argc, char **argv)
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/l3fwd-graph/main.c

@@ -1123,6 +1123,9 @@ main(int argc, char **argv)
 		rte_eth_dev_close(portid);
 		printf(" Done\n");
 	}
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
 	printf("Bye...\n");
 
 	return ret;

examples/l3fwd/main.c

@@ -1405,6 +1405,10 @@ main(int argc, char **argv)
 			printf(" Done\n");
 		}
 	}
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	printf("Bye...\n");
 
 	return ret;

examples/link_status_interrupt/main.c

@@ -730,5 +730,8 @@ main(int argc, char **argv)
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/multi_process/client_server_mp/mp_client/client.c

@@ -268,4 +268,7 @@ main(int argc, char *argv[])
 
 		need_flush = 1;
 	}
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
 }

examples/multi_process/client_server_mp/mp_server/main.c

@@ -304,5 +304,9 @@ main(int argc, char *argv[])
 	rte_eal_mp_remote_launch(sleep_lcore, NULL, SKIP_MAIN);
 
 	do_packet_forwarding();
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/multi_process/simple_mp/main.c

@@ -121,5 +121,9 @@ main(int argc, char **argv)
 	cmdline_stdin_exit(cl);
 
 	rte_eal_mp_wait_lcore();
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/multi_process/symmetric_mp/main.c

@@ -472,5 +472,8 @@ main(int argc, char **argv)
 
 	rte_eal_mp_remote_launch(lcore_main, NULL, CALL_MAIN);
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/ntb/ntb_fwd.c

@@ -1498,5 +1498,8 @@ main(int argc, char **argv)
 		start_pkt_fwd();
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/packet_ordering/main.c

@@ -783,5 +783,9 @@ main(int argc, char **argv)
 	}
 
 	print_stats();
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/performance-thread/l3fwd-thread/main.c

@@ -3781,5 +3781,8 @@ main(int argc, char **argv)
 		}
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/performance-thread/pthread_shim/main.c

@@ -263,5 +263,9 @@ int main(int argc, char **argv)
 	RTE_LCORE_FOREACH_WORKER(lcore_id) {
 		rte_eal_wait_lcore(lcore_id);
 	}
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/pipeline/main.c

@@ -190,4 +190,7 @@ main(int argc, char **argv)
 
 		conn_poll_for_msg(conn);
 	}
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
 }

examples/ptpclient/ptpclient.c

@@ -784,5 +784,8 @@ main(int argc, char *argv[])
 	/* Call lcore_main on the main core only. */
 	lcore_main();
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/qos_meter/main.c

@@ -460,5 +460,8 @@ main(int argc, char **argv)
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/qos_sched/main.c

@@ -218,5 +218,8 @@ main(int argc, char **argv)
 		}
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/rxtx_callbacks/main.c

@@ -338,5 +338,9 @@ main(int argc, char *argv[])
 
 	/* call lcore_main on main core only */
 	lcore_main();
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/server_node_efd/node/node.c

@@ -383,4 +383,7 @@ main(int argc, char *argv[])
 
 		need_flush = 1;
 	}
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
 }

examples/server_node_efd/server/main.c

@@ -334,5 +334,9 @@ main(int argc, char *argv[])
 	rte_eal_mp_remote_launch(sleep_lcore, NULL, SKIP_MAIN);
 
 	do_packet_forwarding();
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/service_cores/main.c

@@ -220,5 +220,8 @@ main(int argc, char **argv)
 			i = 0;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/skeleton/basicfwd.c

@@ -205,5 +205,8 @@ main(int argc, char *argv[])
 	/* Call lcore_main on the main core only. */
 	lcore_main();
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/timer/main.c

@@ -117,5 +117,8 @@ main(int argc, char **argv)
 	/* call it on main lcore too */
 	(void) lcore_mainloop(NULL);
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/vdpa/main.c

@@ -576,5 +576,8 @@ main(int argc, char *argv[])
 		vdpa_sample_quit();
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/vhost/main.c

@@ -1781,6 +1781,8 @@ main(int argc, char *argv[])
 	RTE_LCORE_FOREACH_WORKER(lcore_id)
 		rte_eal_wait_lcore(lcore_id);
 
-	return 0;
+	/* clean up the EAL */
+	rte_eal_cleanup();
 
+	return 0;
 }

examples/vhost_blk/vhost_blk.c

@@ -907,5 +907,8 @@ int main(int argc, char *argv[])
 	while (1)
 		sleep(1);
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/vhost_crypto/main.c

@@ -469,6 +469,9 @@ free_resource(void)
 	}
 
 	memset(&options, 0, sizeof(options));
+
+	/* clean up the EAL */
+	rte_eal_cleanup();
 }
 
 int

examples/vm_power_manager/guest_cli/main.c

@@ -200,5 +200,8 @@ main(int argc, char **argv)
 	}
 	run_cli(NULL);
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/vm_power_manager/main.c

@@ -468,5 +468,8 @@ main(int argc, char **argv)
 
 	free(ci->cd);
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/vmdq/main.c

@@ -659,5 +659,8 @@ main(int argc, char *argv[])
 			return -1;
 	}
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }

examples/vmdq_dcb/main.c

@@ -707,5 +707,8 @@ main(int argc, char *argv[])
 	/* call on main too */
 	(void) lcore_main((void*)i);
 
+	/* clean up the EAL */
+	rte_eal_cleanup();
+
 	return 0;
 }