netdev - Re: [PATCHv2] selftests: rtnetlink: load fou module for kci_test_encap

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Date:   Fri, 4 Sep 2020 17:10:39 +0800
From:   Po-Hsu Lin <po-hsu.lin@...onical.com>
To:     David Miller <davem@...emloft.net>, kuba@...nel.org,
        Shuah Khan <skhan@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCHv2] selftests: rtnetlink: load fou module for kci_test_encap_fou()

Hello David,

do you need more information for this V2 patch?

Thank you
PHLin

On Mon, Aug 17, 2020 at 10:53 AM Po-Hsu Lin <po-hsu.lin@...onical.com> wrote:
>
> The kci_test_encap_fou() test from kci_test_encap() in rtnetlink.sh
> needs the fou module to work. Otherwise it will fail with:
>
>   $ ip netns exec "$testns" ip fou add port 7777 ipproto 47
>   RTNETLINK answers: No such file or directory
>   Error talking to the kernel
>
> Add the CONFIG_NET_FOU into the config file as well. Which needs at
> least to be set as a loadable module.
>
> Signed-off-by: Po-Hsu Lin <po-hsu.lin@...onical.com>
> ---
>  tools/testing/selftests/net/config       | 1 +
>  tools/testing/selftests/net/rtnetlink.sh | 6 ++++++
>  2 files changed, 7 insertions(+)
>
> diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
> index 3b42c06b..96d2763 100644
> --- a/tools/testing/selftests/net/config
> +++ b/tools/testing/selftests/net/config
> @@ -31,3 +31,4 @@ CONFIG_NET_SCH_ETF=m
>  CONFIG_NET_SCH_NETEM=y
>  CONFIG_TEST_BLACKHOLE_DEV=m
>  CONFIG_KALLSYMS=y
> +CONFIG_NET_FOU=m
> diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
> index bdbf4b3..7931b65 100755
> --- a/tools/testing/selftests/net/rtnetlink.sh
> +++ b/tools/testing/selftests/net/rtnetlink.sh
> @@ -521,6 +521,11 @@ kci_test_encap_fou()
>                 return $ksft_skip
>         fi
>
> +       if ! /sbin/modprobe -q -n fou; then
> +               echo "SKIP: module fou is not found"
> +               return $ksft_skip
> +       fi
> +       /sbin/modprobe -q fou
>         ip -netns "$testns" fou add port 7777 ipproto 47 2>/dev/null
>         if [ $? -ne 0 ];then
>                 echo "FAIL: can't add fou port 7777, skipping test"
> @@ -541,6 +546,7 @@ kci_test_encap_fou()
>                 return 1
>         fi
>
> +       /sbin/modprobe -q -r fou
>         echo "PASS: fou"
>  }
>
> --
> 2.7.4
>