** Package changed: ubuntu => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1806845

Title:
  The unsigned vf->num_mac will be decreased to below zero and cause the
  VF port not working

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  The unsigned vf->num_mac in Ubuntu18.04.1 LTS i40e driver 2.1.14-k
  will be decreased to below zero when VF is trying to delete the MAC
  address which is added by PF and then add a new MAC address. And after
  this issue happens, VF won't be able to send/receive packets, and
  excepting for broadcast address, mac_filter_hash is empty in dumped
  VSI info.

  Ubuntu18.04.1 LTS kernel: 4.15.0-38-generic
  i40e driver: 2.1.14-k
  i40evf driver: 3.0.1-k

  Actual results:
  The unsigned vf->num_mac should decrease to below zero. The VF port doesn't 
work.

  Expected results:
  The unsigned vf->num_mac range is from 0 to 65535;
  or the vf is not allowed to delete the MAC addr which is added by PF

  Corresponding Patch is required for resolving this i40e driver issue

  i40e: Prevent deleting MAC address from VF when set by PF
  https://patchwork.ozlabs.org/patch/963036/

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