Comment 13 for bug 1879307

Reviewed: https://review.opendev.org/729731
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=bd8240dc9dc56a6ad9656a58c8cbf7ce7ae84cee
Submitter: Zuul
Branch: stable/rocky

commit bd8240dc9dc56a6ad9656a58c8cbf7ce7ae84cee
Author: Slawek Kaplonski <email address hidden>
Date: Tue May 19 10:04:18 2020 +0200

    Allow usage of legacy 3rd-party interface drivers

    In the patch [1] we changed definition of the abstract method
    "plug" in the LinuxInterfaceDriver class.
    That broke e.g. 3rd-party drivers which still don't accept this
    new parameter called "link_up" in the plug_new method.

    So this patch fixes this to make such legacy drivers to be still working
    with the new base interface driver class.

    This commit also marks such definition of the plug_new method as
    deprecated. Possibility of using it without accepting link_up parameter
    will be removed in the "W" release of the OpenStack.

    [1] https://review.opendev.org/#/c/707406/

    Change-Id: Icd555987a1a57ca0b31fa7e4e830583d6c69c861
    Closes-Bug: #1879307
    (cherry picked from commit 30d573d5abeb4a5251d08dc5384f5c0ff372eff8)
    (cherry picked from commit 9c242a032915141d18705198f637cd717a414a26)
    (cherry picked from commit bc8c38bda821b0fd989b221dbd9fedb9e3a3d9a2)