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[Ubuntu Kernel Bot <1937133@xxxxxxxxxxxxxxxxxx>]

This bug is awaiting verification that the linux-azure/6.2.0-1009.9
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-lunar' to 'verification-done-lunar'. If the
problem still exists, change the tag 'verification-needed-lunar' to
'verification-failed-lunar'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-lunar-linux-azure verification-needed-lunar

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https://bugs.launchpad.net/bugs/1937133

Title:
  devlink_port_split from ubuntu_kernel_selftests.net fails on hirsute
  (KeyError: 'flavour')

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Hirsute:
  Won't Fix
Status in linux source package in Jammy:
  Fix Released
Status in linux source package in Kinetic:
  Fix Released
Status in linux source package in Lunar:
  Fix Released

Bug description:
  [Impact]
  On s390x LPAR instances, this test will fail with:
      #   File "linux/tools/testing/selftests/net/devlink_port_split.py", line 64, in get_if_names
      #     if ports[port]['flavour'] == 'physical':
      # KeyError: 'flavour'
    not ok 1 selftests: net: devlink_port_split.py # exit=1

  This is because the mlx4 driver in use on this instance does not set
  attributes, therefore `devlink -j port show` command output does not
  contain this "flavour" key.

  [Fix]
  * 3de66d08d3 selftests: net: devlink_port_split.py: skip test if no
    suitable device available

  This patch can be cherry-picked into our J/K/L kernels.

  [Test]
  Run the patched devlink_port_split.py on s390x LPAR, and it won't
  fail with # KeyError: 'flavour' but marked as SKIP instead.

  [Where problems could occur]
  If this change is incorrect, it may affect the test result, however it's
  limited to testing tools, no actual impact to kernel functions.


  [Original Bug Report]
  Failing on hirsute/linux 5.11.0-26.28  host s2lp4

  Not a regression as this is also failing on 5.11.0-24.25

  17:16:32 DEBUG| [stdout] # selftests: net: devlink_port_split.py
  17:16:32 DEBUG| [stdout] # Traceback (most recent call last):
  17:16:32 DEBUG| [stdout] #   File "/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/net/./devlink_port_split.py", line 283, in <module>
  17:16:32 DEBUG| [stdout] #     main()
  17:16:32 DEBUG| [stdout] #   File "/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/net/./devlink_port_split.py", line 256, in main
  17:16:32 DEBUG| [stdout] #     ports = devlink_ports(dev)
  17:16:32 DEBUG| [stdout] #   File "/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/net/./devlink_port_split.py", line 70, in __init__
  17:16:32 DEBUG| [stdout] #     self.if_names = devlink_ports.get_if_names(dev)
  17:16:32 DEBUG| [stdout] #   File "/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/net/./devlink_port_split.py", line 64, in get_if_names
  17:16:32 DEBUG| [stdout] #     if ports[port]['flavour'] == 'physical':
  17:16:32 DEBUG| [stdout] # KeyError: 'flavour'
  17:16:32 DEBUG| [stdout] not ok 44 selftests: net: devlink_port_split.py # exit=1

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