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[Jürg Häfliger <1908342@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1908342

Title:
  selftests: test_vxlan_under_vrf: mute unnecessary error message

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Focal:
  Fix Released
Status in linux source package in Groovy:
  Fix Released
Status in linux source package in Hirsute:
  Fix Released

Bug description:
  [Impact]
  The cleanup function in the selftests/net/test_vxlan_under_vrf.sh
  script that tries to delete hv-1 / hv-2 and vm-1 / vm-2 netns will
  generate some unnecessary 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.

  [Fix]
  * 0e12c0271887f1 ("selftests: test_vxlan_under_vrf: mute unnecessary error message")

  This script exists in selftests/net since Focal, and this patch can be
  cherry-picked into all affected series.

  [Test]
  Run this script directly, these unnecessary error message won't be
  printed anymore.

  [Where problems could occur]
  As this change is quite straightforward, I don't think anything bad
  would happen. And even it did happen, this change is limited to testing
  tool so it should be fine.

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