selftests: mptcp: print all error messages to stdout

Some error messages are printed to stderr while the others are printed
to 'stdout'. As part of the unification, this patch drop "1>&2" to let
all errors messages are printed to 'stdout'.
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-1-4f42c347b653@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

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

@@ -294,7 +294,7 @@ do_ping()
 	ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null || rc=1
 
 	if [ $rc -ne 0 ] ; then
-		echo "$listener_ns -> $connect_addr connectivity [ FAIL ]" 1>&2
+		echo "$listener_ns -> $connect_addr connectivity [ FAIL ]"
 		ret=1
 
 		return 1
@@ -470,13 +470,13 @@ do_transfer()
 
 	if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then
 		printf "[ FAIL ] lower MPC SYN rx (%d) than expected (%d)\n" \
-			"${stat_synrx_now_l}" "${expect_synrx}" 1>&2
+			"${stat_synrx_now_l}" "${expect_synrx}"
 		retc=1
 	fi
 	if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ] && [ ${stat_ooo_now} -eq 0 ]; then
 		if [ ${stat_ooo_now} -eq 0 ]; then
 			printf "[ FAIL ] lower MPC ACK rx (%d) than expected (%d)\n" \
-				"${stat_ackrx_now_l}" "${expect_ackrx}" 1>&2
+				"${stat_ackrx_now_l}" "${expect_ackrx}"
 			rets=1
 		else
 			printf "[ Note ] fallback due to TCP OoO"
@@ -721,7 +721,7 @@ EOF
 	ip -net "$listener_ns" route del local $local_addr/0 dev lo table 100
 
 	if [ $lret -ne 0 ]; then
-		echo "FAIL: $msg, mptcp connection error" 1>&2
+		echo "FAIL: $msg, mptcp connection error"
 		ret=$lret
 		return 1
 	fi
@@ -810,7 +810,7 @@ log_if_error()
 	local msg="$1"
 
 	if [ ${ret} -ne 0 ]; then
-		echo "FAIL: ${msg}" 1>&2
+		echo "FAIL: ${msg}"
 
 		final_ret=${ret}
 		ret=0

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

@@ -103,7 +103,8 @@ check_mark()
 	local v
 	for v in $values; do
 		if [ $v -ne 0 ]; then
-			echo "FAIL: got $tables $values in ns $ns , not 0 - not all expected packets marked" 1>&2
+			echo "FAIL: got $tables $values in ns $ns," \
+			     "not 0 - not all expected packets marked"
 			ret=1
 			return 1
 		fi
@@ -162,7 +163,7 @@ do_transfer()
 	local rets=$?
 
 	if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
-		echo " client exit code $retc, server $rets" 1>&2
+		echo " client exit code $retc, server $rets"
 		echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
 		ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port"
 
@@ -221,7 +222,7 @@ do_mptcp_sockopt_tests()
 	lret=$?
 
 	if [ $lret -ne 0 ]; then
-		echo "FAIL: SOL_MPTCP getsockopt" 1>&2
+		echo "FAIL: SOL_MPTCP getsockopt"
 		mptcp_lib_result_fail "sockopt v4"
 		ret=$lret
 		return
@@ -232,7 +233,7 @@ do_mptcp_sockopt_tests()
 	lret=$?
 
 	if [ $lret -ne 0 ]; then
-		echo "FAIL: SOL_MPTCP getsockopt (ipv6)" 1>&2
+		echo "FAIL: SOL_MPTCP getsockopt (ipv6)"
 		mptcp_lib_result_fail "sockopt v6"
 		ret=$lret
 		return
@@ -263,7 +264,7 @@ do_tcpinq_test()
 	local lret=$?
 	if [ $lret -ne 0 ];then
 		ret=$lret
-		echo "FAIL: mptcp_inq $*" 1>&2
+		echo "FAIL: mptcp_inq $*"
 		mptcp_lib_result_fail "TCP_INQ: $*"
 		return $lret
 	fi