linux-kernel - Re: [PATCH v2] selftests: tc-testing: add one test for flushing explicitly created chain

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Message-ID: <d893715c-2eea-6dc3-ca27-b19535194a60@mojatatu.com>
Date:   Tue, 20 Jun 2023 10:48:36 -0300
From:   Pedro Tammela <pctammela@...atatu.com>
To:     renmingshuai <renmingshuai@...wei.com>, vladbu@...dia.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        jhs@...atatu.com, xiyou.wangcong@...il.com, jiri@...nulli.us,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc:     liaichun@...wei.com, caowangbao@...wei.com, yanan@...wei.com,
        liubo335@...wei.com
Subject: Re: [PATCH v2] selftests: tc-testing: add one test for flushing
 explicitly created chain

On 19/06/2023 22:49, renmingshuai wrote:
> Add the test for additional reference to chains that are explicitly created
>   by RTM_NEWCHAIN message.
> The test result:
> 1..1
> ok 1 c2b4 - soft lockup alarm will be not generated after delete the prio 0
>   filter of the chain
> 
> commit c9a82bec02c3 ("net/sched: cls_api: Fix lockup on flushing explicitly
>   created chain")
> Signed-off-by: Mingshuai Ren <renmingshuai@...wei.com>

Acked-by: Pedro Tammela <pctammela@...atatu.com>

> 
> ---
> V1 -> V2
>    * add the test result
> ---
>   .../tc-testing/tc-tests/infra/filter.json     | 25 +++++++++++++++++++
>   1 file changed, 25 insertions(+)
>   create mode 100644 tools/testing/selftests/tc-testing/tc-tests/infra/filter.json
> 
> diff --git a/tools/testing/selftests/tc-testing/tc-tests/infra/filter.json b/tools/testing/selftests/tc-testing/tc-tests/infra/filter.json
> new file mode 100644
> index 000000000000..c4c778e83da2
> --- /dev/null
> +++ b/tools/testing/selftests/tc-testing/tc-tests/infra/filter.json
> @@ -0,0 +1,25 @@
> +[
> +    {
> +        "id": "c2b4",
> +        "name": "soft lockup alarm will be not generated after delete the prio 0 filter of the chain",
> +        "category": [
> +            "filter",
> +            "chain"
> +        ],
> +        "setup": [
> +            "$IP link add dev $DUMMY type dummy || /bin/true",
> +            "$TC qdisc add dev $DUMMY root handle 1: htb default 1",
> +            "$TC chain add dev $DUMMY",
> +            "$TC filter del dev $DUMMY chain 0 parent 1: prio 0"
> +        ],
> +        "cmdUnderTest": "$TC filter add dev $DUMMY chain 0 parent 1:",
> +        "expExitCode": "2",
> +        "verifyCmd": "$TC chain ls dev $DUMMY",
> +        "matchPattern": "chain parent 1: chain 0",
> +        "matchCount": "1",
> +        "teardown": [
> +            "$TC qdisc del dev $DUMMY root handle 1: htb default 1",
> +            "$IP link del dev $DUMMY type dummy"
> +        ]
> +    }
> +]