Squash to "selftests/bpf: Add bpf scheduler test" cleanup

Some cleanups.

Signed-off-by: Geliang Tang <[email protected]>

tools/testing/selftests/bpf/prog_tests/mptcp.c

@@ -417,7 +417,7 @@ void test_subflow(void)
 }
 
 static const unsigned int total_bytes = 10 * 1024 * 1024;
-static int stop, duration;
+static int stop;
 
 static void *server(void *arg)
 {
@@ -476,11 +476,12 @@ static void send_data(int lfd, int fd, char *msg)
 	int err;
 
 	WRITE_ONCE(stop, 0);
+
 	if (clock_gettime(CLOCK_MONOTONIC, &start) < 0)
 		return;
 
 	err = pthread_create(&srv_thread, NULL, server, (void *)(long)lfd);
-	if (CHECK(err != 0, "pthread_create", "err:%d errno:%d\n", err, errno))
+	if (!ASSERT_OK(err, "pthread_create"))
 		return;
 
 	/* recv total_bytes */
@@ -513,10 +514,6 @@ static void send_data(int lfd, int fd, char *msg)
 		printf("FAIL:pthread_join thread_ret:%ld\n", PTR_ERR(thread_ret));
 }
 
-#define ADDR_1	"10.0.1.1"
-#define ADDR_2	"10.0.1.2"
-#define PORT_1	10001
-
 static struct nstoken *sched_init(char *flags, char *sched)
 {
 	struct nstoken *nstoken;
@@ -525,25 +522,23 @@ static struct nstoken *sched_init(char *flags, char *sched)
 	if (!ASSERT_OK_PTR(nstoken, "create_netns"))
 		goto fail;
 
-	SYS(fail, "ip -net %s link add veth1 type veth peer name veth2", NS_TEST);
-	SYS(fail, "ip -net %s addr add %s/24 dev veth1", NS_TEST, ADDR_1);
-	SYS(fail, "ip -net %s link set dev veth1 up", NS_TEST);
-	SYS(fail, "ip -net %s addr add %s/24 dev veth2", NS_TEST, ADDR_2);
-	SYS(fail, "ip -net %s link set dev veth2 up", NS_TEST);
-	SYS(fail, "ip -net %s mptcp endpoint add %s %s", NS_TEST, ADDR_2, flags);
+	if (!ASSERT_OK(endpoint_init("subflow"), "endpoint_init"))
+		goto fail;
+
 	SYS(fail, "ip netns exec %s sysctl -qw net.mptcp.scheduler=%s", NS_TEST, sched);
 
 	return nstoken;
 fail:
 	return NULL;
 }
 
-static int has_bytes_sent(char *addr)
+static int has_bytes_sent(char *dst)
 {
 	char cmd[128];
 
-	snprintf(cmd, sizeof(cmd), "ip netns exec %s ss -it src %s sport %d dst %s | %s",
-		 NS_TEST, ADDR_1, PORT_1, addr, "grep -q bytes_sent:");
+	snprintf(cmd, sizeof(cmd),
+		 "ip netns exec %s ss -it src %s sport %d dst %s | %s",
+		 NS_TEST, ADDR_1, PORT_1, dst, "grep -q bytes_sent:");
 	return system(cmd);
 }