From: sdf@google.com
To: Jianlin Lv <Jianlin.Lv@arm.com>
Cc: bpf@vger.kernel.org, davem@davemloft.net, kuba@kernel.org,
ast@kernel.org, daniel@iogearbox.net, yhs@fb.com,
Song.Zhu@arm.com, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org
Subject: Re: [PATCH bpf-next] bpf: fix load XDP program error in test_xdp_vlan
Date: Wed, 12 Aug 2020 13:40:17 -0700 [thread overview]
Message-ID: <20200812204017.GI184844@google.com> (raw)
In-Reply-To: <20200812140322.132844-1-Jianlin.Lv@arm.com>
On 08/12, Jianlin Lv wrote:
> test_xdp_vlan.sh reports the error as below:
> $ sudo ./test_xdp_vlan_mode_native.sh
> + '[' -z xdp_vlan_mode_native ']'
> + XDP_MODE=xdpgeneric
> ……
> + export XDP_PROG=xdp_vlan_remove_outer2
> + XDP_PROG=xdp_vlan_remove_outer2
> + ip netns exec ns1 ip link set veth1 xdpdrv off
> Error: XDP program already attached.
> ip will throw an error in case a XDP program is already attached to the
> networking interface, to prevent it from being overridden by accident.
> In order to replace the currently running XDP program with a new one,
> the -force option must be used.
> Signed-off-by: Jianlin Lv <Jianlin.Lv@arm.com>
> ---
> tools/testing/selftests/bpf/test_xdp_vlan.sh | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> diff --git a/tools/testing/selftests/bpf/test_xdp_vlan.sh
> b/tools/testing/selftests/bpf/test_xdp_vlan.sh
> index bb8b0da91686..034e603aeb50 100755
> --- a/tools/testing/selftests/bpf/test_xdp_vlan.sh
> +++ b/tools/testing/selftests/bpf/test_xdp_vlan.sh
> @@ -220,7 +220,7 @@ ip netns exec ns1 ping -i 0.2 -W 2 -c 2 $IPADDR2
> # ETH_P_8021Q indication, and this cause overwriting of our changes.
> #
> export XDP_PROG=xdp_vlan_remove_outer2
> -ip netns exec ns1 ip link set $DEVNS1 $XDP_MODE off
> +ip netns exec ns1 ip -force link set $DEVNS1 $XDP_MODE off
> ip netns exec ns1 ip link set $DEVNS1 $XDP_MODE object $FILE section
> $XDP_PROG
> # Now the namespaces should still be able reach each-other, test with
> ping:
> --
> 2.17.1
This should be already fixed by:
https://lore.kernel.org/bpf/CAKH8qBuz48Ww6S=DCzKRr3f46Eq3LyknvTjDGP_5QRPxtGZ_Hw@mail.gmail.com/T/#t
prev parent reply other threads:[~2020-08-12 20:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-12 14:03 [PATCH bpf-next] bpf: fix load XDP program error in test_xdp_vlan Jianlin Lv
2020-08-12 20:40 ` sdf [this message]
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