6.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Matthieu Baerts <matttbe@xxxxxxxxxx>
commit b134a5805455d1886662a6516c965cdb9df9fbcc upstream.
The commit mentioned below was more tolerant with the number of RST seen
during a test because in some uncontrollable situations, multiple RST
can be generated.
But it was not taking into account the case where no RST are expected:
this validation was then no longer reporting issues for the 0 RST case
because it is not possible to have less than 0 RST in the counter. This
patch fixes the issue by adding a specific condition.
Fixes: 6bf41020b72b ("selftests: mptcp: update and extend fastclose test-cases")
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Mat Martineau <martineau@xxxxxxxxxx>
Signed-off-by: Matthieu Baerts <matttbe@xxxxxxxxxx>
Signed-off-by: Mat Martineau <martineau@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20231018-send-net-20231018-v1-1-17ecb002e41d@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Matthieu Baerts <matttbe@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/net/mptcp/mptcp_join.sh | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -1383,7 +1383,9 @@ chk_rst_nr()
count=$(get_counter ${ns_tx} "MPTcpExtMPRstTx")
if [ -z "$count" ]; then
echo -n "[skip]"
- elif [ $count -lt $rst_tx ]; then
+ # accept more rst than expected except if we don't expect any
+ elif { [ $rst_tx -ne 0 ] && [ $count -lt $rst_tx ]; } ||
+ { [ $rst_tx -eq 0 ] && [ $count -ne 0 ]; }; then
echo "[fail] got $count MP_RST[s] TX expected $rst_tx"
fail_test
else
@@ -1394,7 +1396,9 @@ chk_rst_nr()
count=$(get_counter ${ns_rx} "MPTcpExtMPRstRx")
if [ -z "$count" ]; then
echo -n "[skip]"
- elif [ "$count" -lt "$rst_rx" ]; then
+ # accept more rst than expected except if we don't expect any
+ elif { [ $rst_rx -ne 0 ] && [ $count -lt $rst_rx ]; } ||
+ { [ $rst_rx -eq 0 ] && [ $count -ne 0 ]; }; then
echo "[fail] got $count MP_RST[s] RX expected $rst_rx"
fail_test
else
