The variables 'large', 'small', 'sout', 'cout', 'capout' and 'size' are
used in multiple functions, so they should be defined as global variables.
This patch redefines them at the beginning of simult_flows.sh.

Signed-off-by: Geliang Tang <geliang.tang@linux.dev>
---
 tools/testing/selftests/net/mptcp/simult_flows.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh b/tools/testing/selftests/net/mptcp/simult_flows.sh
index ef61cec3bf37..b82c083c934e 100755
--- a/tools/testing/selftests/net/mptcp/simult_flows.sh
+++ b/tools/testing/selftests/net/mptcp/simult_flows.sh
@@ -10,6 +10,12 @@ timeout_poll=30
 timeout_test=$((timeout_poll * 2 + 1))
 bail=0
 slack=50
+large=""
+small=""
+sout=""
+cout=""
+capout=""
+size=0
 
 usage() {
 	echo "Usage: $0 [ -b ] [ -c ] [ -d ]"
-- 
2.35.3