migration-guides/{migration,release-notes}-5.2.rst: notes for systemd pni-names

Add a note to the migration guide regarding the pni-names behavior
change.

Suggested-by: Enrico Jörns <ejo@pengutronix.de>
(From yocto-docs rev: 9a1b9778c296351a575501a4abc5317e9be954bc)

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/documentation/migration-guides/migration-5.2.rst b/documentation/migration-guides/migration-5.2.rst
index 6b7d02d656..9e9f466ade 100644
--- a/documentation/migration-guides/migration-5.2.rst
+++ b/documentation/migration-guides/migration-5.2.rst
@@ -104,6 +104,13 @@ systemd changes
    ``journald.conf`` to "persistent". The ``/var/log/journal`` directory is now
    used for logging instead of ``/run/log``.
 
+-  If ``pni-names`` is not in the :term:`DISTRO_FEATURES`, the `Predictable
+   Network Interface names <https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/>`__
+   systemd feature will now be disabled. Previously the feature was still
+   enabled even if ``pni-names`` was not part of :term:`DISTRO_FEATURES`. Make
+   sure to add the feature to :term:`DISTRO_FEATURES` if you want to keep this
+   systemd behavior.
+
 Multiconfig changes
 ~~~~~~~~~~~~~~~~~~~