Merge branch 'mptcp-test-fixes'

Matthieu Baerts says:

====================
selftests: mptcp: fixes for diag.sh

Here are two patches fixing issues in MPTCP diag.sh kselftest:

- Patch 1 makes sure the exit code is '1' in case of error, and not the
  test ID, not to return an exit code that would be wrongly interpreted
  by the ksefltests framework, e.g. '4' means 'skip'.

- Patch 2 avoids waiting for unnecessary conditions, which can cause
  timeouts in some very slow environments.
====================

Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>

Author: davem330

tools/testing/selftests/net/mptcp/diag.sh

@@ -69,7 +69,7 @@ __chk_nr()
 		else
 			echo "[ fail ] expected $expected found $nr"
 			mptcp_lib_result_fail "${msg}"
-			ret=$test_cnt
+			ret=${KSFT_FAIL}
 		fi
 	else
 		echo "[  ok  ]"
@@ -96,8 +96,8 @@ chk_listener_nr()
 	local expected=$1
 	local msg="$2"
 
-	__chk_nr "ss -inmlHMON $ns | wc -l" "$expected" "$msg - mptcp" 0
-	__chk_nr "ss -inmlHtON $ns | wc -l" "$expected" "$msg - subflows"
+	__chk_nr "ss -nlHMON $ns | wc -l" "$expected" "$msg - mptcp" 0
+	__chk_nr "ss -nlHtON $ns | wc -l" "$expected" "$msg - subflows"
 }
 
 wait_msk_nr()
@@ -124,11 +124,11 @@ wait_msk_nr()
 	if [ $i -ge $timeout ]; then
 		echo "[ fail ] timeout while expecting $expected max $max last $nr"
 		mptcp_lib_result_fail "${msg} # timeout"
-		ret=$test_cnt
+		ret=${KSFT_FAIL}
 	elif [ $nr != $expected ]; then
 		echo "[ fail ] expected $expected found $nr"
 		mptcp_lib_result_fail "${msg} # unexpected result"
-		ret=$test_cnt
+		ret=${KSFT_FAIL}
 	else
 		echo "[  ok  ]"
 		mptcp_lib_result_pass "${msg}"
@@ -304,10 +304,7 @@ for I in $(seq 1 $NR_SERVERS); do
 	ip netns exec $ns ./mptcp_connect -p $((I + 20001)) \
 		-t ${timeout_poll} -l 0.0.0.0 >/dev/null 2>&1 &
 done
-
-for I in $(seq 1 $NR_SERVERS); do
-	mptcp_lib_wait_local_port_listen $ns $((I + 20001))
-done
+mptcp_lib_wait_local_port_listen $ns $((NR_SERVERS + 20001))
 
 chk_listener_nr $NR_SERVERS "many listener sockets"