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selftests/tc-testing: Try to add teql as a child qdisc

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Add a selftest that attempts to add a teql qdisc as a qfq child.
Since teql _must_ be added as a root qdisc, the kernel should reject
this.

Signed-off-by: Victor Nogueira <victor@mojatatu.com>
Link: https://patch.msgid.link/20260114160243.913069-4-jhs@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Victor Nogueira
2026-01-14 11:02:43 -05:00
committed by Jakub Kicinski
parent d837fbee92
commit 2460f31e6e
1 changed files with 25 additions and 0 deletions
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25
tools/testing/selftests/tc-testing/tc-tests/qdiscs/teql.json
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@@ -81,5 +81,30 @@
"$TC qdisc del dev $DUMMY handle 1: root",
"$IP link del dev $DUMMY"
]
},
{
"id": "124e",
"name": "Try to add teql as a child qdisc",
"category": [
"qdisc",
"ets",
"tbf"
],
"plugins": {
"requires": [
"nsPlugin"
]
},
"setup": [
"$TC qdisc add dev $DUMMY root handle 1: qfq",
"$TC class add dev $DUMMY parent 1: classid 1:1 qfq weight 15 maxpkt 16384"
],
"cmdUnderTest": "$TC qdisc add dev $DUMMY parent 1:1 handle 2:1 teql0",
"expExitCode": "2",
"verifyCmd": "$TC -s -j qdisc ls dev $DUMMY parent 1:1",
"matchJSON": [],
"teardown": [
"$TC qdisc del dev $DUMMY root handle 1:"
]
}
]