Re: [PATCH] net-ipv6: on device mtu change do not add mtu to mtu-less routes

From: Maciej Żenczykowski <redacted>
Date: Fri,  4 Nov 2016 14:51:54 -0700

From: Maciej Żenczykowski <redacted>

Routes can specify an mtu explicitly or inherit the mtu from
the underlying device - this inheritance is implemented in
dst->ops->mtu handlers ip6_mtu() and ip6_blackhole_mtu().

Currently changing the mtu of a device adds mtu explicitly
to routes using that device.

 ...

This is desirable because changing device mtu and then resetting it
to the previous value shouldn't change the user visible routing table.

Signed-off-by: Maciej Żenczykowski <redacted>

Applied, thank you.