Merge tag 'batadv-net-pullrequest-20220916' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
Here is a batman-adv bugfix:

 - Fix hang up with small MTU hard-interface, by Shigeru Yoshida

* tag 'batadv-net-pullrequest-20220916' of git://git.open-mesh.org/linux-merge:
  batman-adv: Fix hang up with small MTU hard-interface
====================

Link: https://lore.kernel.org/r/20220916160931.1412407-1-sw@simonwunderlich.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>