[ovs-git] [ovn-org/ovn] cc1368: northd: Fix duplicate logical port detection.

[Dumitru Ceara]

  Branch: refs/heads/branch-20.03
  Home:   https://github.com/ovn-org/ovn
  Commit: cc13684bbe75e08e138b8b69151acb1f0a7adff3
      https://github.com/ovn-org/ovn/commit/cc13684bbe75e08e138b8b69151acb1f0a7adff3
  Author: Dumitru Ceara <dceara at redhat.com>
  Date:   2021-01-25 (Mon, 25 Jan 2021)

  Changed paths:
    M northd/ovn-northd.c
    M tests/ovn-northd.at

  Log Message:
  -----------
  northd: Fix duplicate logical port detection.

When reconciling SB Port_Bindings and NB Logical_Switch_Ports or
Logical_Router_Ports make sure we properly detect ports that are
incorrectly attached to multiple logical datapaths.

Reported-at: https://bugzilla.redhat.com/1918582
Reported-by: Jianlin Shi <jishi at redhat.com>
Fixes: 8bf9075968ac ("ovn-northd: Fix tunnel_key allocation for SB Port_Bindings.")
Signed-off-by: Dumitru Ceara <dceara at redhat.com>
Signed-off-by: Numan Siddique <numans at ovn.org>

(cherry-picked from master commit 7b404e68b5b8ea7168b25cb60abb79b5696bcc02)