linux-kernel - [PATCHv3 net] selftests: fib_tests: mute cleanup error message

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Message-Id: <20230518043759.28477-1-po-hsu.lin@canonical.com>
Date:   Thu, 18 May 2023 12:37:59 +0800
From:   Po-Hsu Lin <po-hsu.lin@...onical.com>
To:     linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        netdev@...r.kernel.org
Cc:     po-hsu.lin@...onical.com, roxana.nicolescu@...onical.com,
        shuah@...nel.org, pabeni@...hat.com, kuba@...nel.org,
        edumazet@...gle.com, davem@...emloft.net
Subject: [PATCHv3 net] selftests: fib_tests: mute cleanup error message

In the end of the test, there will be an error message induced by the
`ip netns del ns1` command in cleanup()

  Tests passed: 201
  Tests failed:   0
  Cannot remove namespace file "/run/netns/ns1": No such file or directory

This can even be reproduced with just `./fib_tests.sh -h` as we're
calling cleanup() on exit.

Redirect the error message to /dev/null to mute it.

V2: Update commit message and fixes tag.
V3: resubmit due to missing netdev ML in V2

Fixes: b60417a9f2b8 ("selftest: fib_tests: Always cleanup before exit")
Signed-off-by: Po-Hsu Lin <po-hsu.lin@...onical.com>
---
 tools/testing/selftests/net/fib_tests.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
index 7da8ec8..35d89df 100755
--- a/tools/testing/selftests/net/fib_tests.sh
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -68,7 +68,7 @@ setup()
 cleanup()
 {
 	$IP link del dev dummy0 &> /dev/null
-	ip netns del ns1
+	ip netns del ns1 &> /dev/null
 	ip netns del ns2 &> /dev/null
 }
 
-- 
2.7.4