Instead of using a global variable mptcp_connect, this patch added
a new local variable extra_args in do_transfer() to store the extra
argments passing to the mptcp_connect commands.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 .../testing/selftests/net/mptcp/mptcp_join.sh | 24 +++++++++----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 3252865352f3..ee747f4a4c7d 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -12,7 +12,6 @@ cout=""
 ksft_skip=4
 timeout_poll=30
 timeout_test=$((timeout_poll * 2 + 1))
-mptcp_connect=""
 capture=0
 checksum=0
 ip_mptcp=0
@@ -454,12 +453,13 @@ do_transfer()
 	NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
 		nstat -n
 
+	local extra_args
 	if [ $speed = "fast" ]; then
-		mptcp_connect="./mptcp_connect -j"
+		extra_args="-j"
 	elif [ $speed = "slow" ]; then
-		mptcp_connect="./mptcp_connect -r 50"
+		extra_args="-r 50"
 	elif [ $speed = "least" ]; then
-		mptcp_connect="./mptcp_connect -r 10"
+		extra_args="-r 10"
 	fi
 
 	local local_addr
@@ -472,13 +472,13 @@ do_transfer()
 	if [ "$test_link_fail" -eq 2 ];then
 		timeout ${timeout_test} \
 			ip netns exec ${listener_ns} \
-				$mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
-					${local_addr} < "$sinfail" > "$sout" &
+				./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
+					$extra_args ${local_addr} < "$sinfail" > "$sout" &
 	else
 		timeout ${timeout_test} \
 			ip netns exec ${listener_ns} \
-				$mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
-					${local_addr} < "$sin" > "$sout" &
+				./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
+					$extra_args ${local_addr} < "$sin" > "$sout" &
 	fi
 	spid=$!
 
@@ -487,15 +487,15 @@ do_transfer()
 	if [ "$test_link_fail" -eq 0 ];then
 		timeout ${timeout_test} \
 			ip netns exec ${connector_ns} \
-				$mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
-					$connect_addr < "$cin" > "$cout" &
+				./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
+					$extra_args $connect_addr < "$cin" > "$cout" &
 	else
 		( cat "$cinfail" ; sleep 2; link_failure $listener_ns ; cat "$cinfail" ) | \
 			tee "$cinsent" | \
 			timeout ${timeout_test} \
 				ip netns exec ${connector_ns} \
-					$mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
-						$connect_addr > "$cout" &
+					./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
+						$extra_args $connect_addr > "$cout" &
 	fi
 	cpid=$!
 
-- 
2.34.1