There are two problems in this test case:

- When indexing in bash associative array, the subscript is interpreted as string, not as a variable name to be expanded.

- The keys stored to t0s and t1s are not DSCP values, but priority + base (i.e. the logical DSCP value, not the full bitfield value).

In combination these two bugs conspire to make the test just work, except it doesn't really test anything and always passes.

Fix the above two problems in obvious manner.

Signed-off-by: Petr Machata petrm@mellanox.com --- tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh index 418319f19108..cc527660a022 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh @@ -217,13 +217,13 @@ dscp_ping_test()

for key in ${!t0s[@]}; do local expect - if ((key == dscp_10 || key == dscp_20)); then + if ((key == prio+10 || key == prio+20)); then expect=10 else expect=0 fi

- local delta=$((t1s[key] - t0s[key])) + local delta=$((t1s[$key] - t0s[$key])) ((expect == delta)) check_err $? "DSCP $key: Expected to capture $expect packets, got $delta." done