6.5-stable review patch. If anyone has any objections, please let me know.
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From: Matthieu Baerts matttbe@kernel.org
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@vger.kernel.org Reviewed-by: Mat Martineau martineau@kernel.org Signed-off-by: Matthieu Baerts matttbe@kernel.org Signed-off-by: Mat Martineau martineau@kernel.org Link: https://lore.kernel.org/r/20231018-send-net-20231018-v1-1-17ecb002e41d@kerne... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Matthieu Baerts matttbe@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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