linux-kernel - [PATCHv2] selftests: test_vxlan_under_vrf: mute unnecessary error message

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Message-Id: <20201211042420.16411-1-po-hsu.lin@canonical.com>
Date:   Fri, 11 Dec 2020 12:24:20 +0800
From:   Po-Hsu Lin <po-hsu.lin@...onical.com>
To:     netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     davem@...emloft.net, po-hsu.lin@...onical.com, kuba@...nel.org,
        shuah@...nel.org
Subject: [PATCHv2] selftests: test_vxlan_under_vrf: mute unnecessary error message

The cleanup function in this script that tries to delete hv-1 / hv-2
vm-1 / vm-2 netns will generate some uncessary error messages:

Cannot remove namespace file "/run/netns/hv-2": No such file or directory
Cannot remove namespace file "/run/netns/vm-1": No such file or directory
Cannot remove namespace file "/run/netns/vm-2": No such file or directory

Redirect it to /dev/null like other commands in the cleanup function
to reduce confusion.
Signed-off-by: Po-Hsu Lin <po-hsu.lin@...onical.com>
---
 tools/testing/selftests/net/test_vxlan_under_vrf.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/test_vxlan_under_vrf.sh b/tools/testing/selftests/net/test_vxlan_under_vrf.sh
index 09f9ed9..534c8b7 100755
--- a/tools/testing/selftests/net/test_vxlan_under_vrf.sh
+++ b/tools/testing/selftests/net/test_vxlan_under_vrf.sh
@@ -50,7 +50,7 @@ cleanup() {
     ip link del veth-tap 2>/dev/null || true
 
     for ns in hv-1 hv-2 vm-1 vm-2; do
-        ip netns del $ns || true
+        ip netns del $ns 2>/dev/null || true
     done
 }
 
-- 
2.7.4