Comment 14 for bug 1658682

Reviewed: https://review.openstack.org/466428
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=7cfa85865822f7930e4617c80710f5eb59f5a7a3
Submitter: Jenkins
Branch: stable/newton

commit 7cfa85865822f7930e4617c80710f5eb59f5a7a3
Author: Armando Migliaccio <email address hidden>
Date: Thu May 18 19:52:47 2017 -0700

    Allow port security updates even without security-groups enabled

    Port security is useful to enforce anti-spoofing rules, and
    those can operate even in the absence of security groups.

    This patch alters the existing code path to allow port_update
    operations even when the admin disables security_groups from
    the deployment.

    Closes-bug: 1658682

    (cherry picked from commit e49edd7ec32e302df7db44194076a55fd2b5d309)
    Change-Id: If1d9a662e362639798ad93ff06d820852b0f0c99