diff --git a/tools/testing/selftests/bpf/prog_tests/mptcp.c b/tools/testing/selftests/bpf/prog_tests/mptcp.c
index 08c833f94322..b44b9a9368b8 100644
--- a/tools/testing/selftests/bpf/prog_tests/mptcp.c
+++ b/tools/testing/selftests/bpf/prog_tests/mptcp.c
@@ -675,7 +675,7 @@ static int wait_for_token(int fd)
 {
 	__u32 token;
 	char *str;
-	int i, n;
+	int i;
 
 	/* Wait max 2 sec for the connection to be established */
 	for (i = 0; i < 10; i++) {
@@ -686,8 +686,7 @@ static int wait_for_token(int fd)
 		str = get_events_str("type:2");
 		if (!str)
 			continue;
-		n = sscanf(strstr(str, "token"), "token:%u,", &token);
-		if (n != 1)
+		if (sscanf(strstr(str, "token"), "token:%u,", &token) != 1)
 			continue;
 		return token;
 	}
@@ -700,17 +699,14 @@ static int userspace_pm_add_subflow(__u32 token, char *addr, __u8 id)
 	bool ipv6 = strstr(addr, ":");
 	__u32 sport, dport;
 	char *str;
-	int n;
 
 	str = get_events_str("type:2");
 	if (!str)
 		return -1;
 
-	n = sscanf(strstr(str, "sport"), "sport:%u,", &sport);
-	if (n != 1)
+	if (sscanf(strstr(str, "sport"), "sport:%u,", &sport) != 1)
 		return -1;
-	n = sscanf(strstr(str, "dport"), "dport:%u,", &dport);
-	if (n != 1)
+	if (sscanf(strstr(str, "dport"), "dport:%u,", &dport) != 1)
 		return -1;
 	str = ipv6 ? (strstr(addr, ".") ? "::ffff:"ADDR_1 : ADDR6_1) : ADDR_1;
 	SYS_NOFAIL("ip netns exec %s %s csf lip %s lid %u rip %s rport %u token %u",
@@ -861,17 +857,14 @@ static int userspace_pm_set_flags(__u32 token, char *addr, char *flags)
 	bool ipv6 = strstr(addr, ":");
 	__u32 sport, dport;
 	char *str;
-	int n;
 
 	str = get_events_str("type:10");
 	if (!str)
 		return -1;
 
-	n = sscanf(strstr(str, "sport"), "sport:%u,", &sport);
-	if (n != 1)
+	if (sscanf(strstr(str, "sport"), "sport:%u,", &sport) != 1)
 		return -1;
-	n = sscanf(strstr(str, "dport"), "dport:%u,", &dport);
-	if (n != 1)
+	if (sscanf(strstr(str, "dport"), "dport:%u,", &dport) != 1)
 		return -1;
 	str = ipv6 ? (strstr(addr, ".") ? "::ffff:"ADDR_1 : ADDR6_1) : ADDR_1;
 	return SYS_NOFAIL("ip netns exec %s %s set %s port %u rip %s rport %u flags %s token %u",
@@ -883,17 +876,14 @@ static int userspace_pm_rm_subflow(__u32 token, char *addr, __u8 id)
 	bool ipv6 = strstr(addr, ":");
 	__u32 sport, dport;
 	char *str;
-	int n;
 
 	str = get_events_str("type:10");
 	if (!str)
 		return -1;
 
-	n = sscanf(strstr(str, "sport"), "sport:%u,", &sport);
-	if (n != 1)
+	if (sscanf(strstr(str, "sport"), "sport:%u,", &sport) != 1)
 		return -1;
-	n = sscanf(strstr(str, "dport"), "dport:%u,", &dport);
-	if (n != 1)
+	if (sscanf(strstr(str, "dport"), "dport:%u,", &dport) != 1)
 		return -1;
 	str = ipv6 ? (strstr(addr, ".") ? "::ffff:"ADDR_1 : ADDR6_1) : ADDR_1;
 	return SYS_NOFAIL("ip netns exec %s %s dsf lip %s lport %u rip %s rport %u token %u",