qos: T5646: Skip add filter for qos policy limiter class without match

[natali-rs1985]

Change Summary

Adding filter for qos policy limiter class without match is skipped

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

• https://vyos.dev/T5646

Related PR(s)

Component(s) name

qos

Proposed changes

How to test

set qos policy limiter my-policy class 10 bandwidth '20mbit'
set qos policy limiter my-policy class 10 match LOCAL-NET ip destination address '192.0.2.0/24'
set qos policy limiter my-policy class 20 bandwidth '10mbit'
set qos policy limiter my-policy default bandwidth '30mbit'
set qos interface eth1 ingress my-policy
commit

Smoketest result

test_01_cake (__main__.TestQoS.test_01_cake) ... ok
test_02_drop_tail (__main__.TestQoS.test_02_drop_tail) ... ok
test_03_fair_queue (__main__.TestQoS.test_03_fair_queue) ... ok
test_04_fq_codel (__main__.TestQoS.test_04_fq_codel) ... ok
test_05_limiter (__main__.TestQoS.test_05_limiter) ... ok
test_06_network_emulator (__main__.TestQoS.test_06_network_emulator) ... ok
test_07_priority_queue (__main__.TestQoS.test_07_priority_queue) ... ok
test_08_random_detect (__main__.TestQoS.test_08_random_detect) ... skipped 'tc returns invalid JSON here - needs iproute2 fix'
test_09_rate_control (__main__.TestQoS.test_09_rate_control) ... ok
test_10_round_robin (__main__.TestQoS.test_10_round_robin) ... ok
test_11_shaper (__main__.TestQoS.test_11_shaper) ... ok

----------------------------------------------------------------------
Ran 11 tests in 58.310s

OK (skipped=1)

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[dmbaturin]

@Mergifyio backport sagitta

[mergify]

backport sagitta

✅ Backports have been created

• #3084 qos: T5646: Skip add filter for qos policy limiter class without match (backport #3068) has been created for branch sagitta