From: Sven Eckelmann <s...@narfation.org> Date: Sat, 22 Oct 2016 09:46:24 +0200
> The maximum MTU is defined via the slave devices of an batman-adv > interface. Thus it is not possible to calculate the max_mtu during the > creation of the batman-adv device when no slave devices are attached. Doing > so would for example break non-fragmentation setups which then > (incorrectly) allow an MTU of 1500 even when underlying device cannot > transport 1500 bytes + batman-adv headers. > > Checking the dynamically calculated max_mtu via the minimum of the slave > devices MTU during .ndo_change_mtu is also used by the bridge interface. > > Cc: Jarod Wilson <ja...@redhat.com> > Fixes: b3e3893e1253 ("net: use core MTU range checking in misc drivers") > Signed-off-by: Sven Eckelmann <s...@narfation.org> Applied, thanks.