Merge branch 'fixes-for-seg6-and-rpl-lwtunnels-on-input'

Justin Iurman says:

====================
fixes for seg6 and rpl lwtunnels on input

As a follow up to commit 92191dd10730 ("net: ipv6: fix dst ref loops in
rpl, seg6 and ioam6 lwtunnels"), we also need a conditional dst cache on
input for seg6_iptunnel and rpl_iptunnel to prevent dst ref loops (i.e.,
if the packet destination did not change, we may end up recording a
reference to the lwtunnel in its own cache, and the lwtunnel state will
never be freed). This series provides a fix to respectively prevent a
dst ref loop on input in seg6_iptunnel and rpl_iptunnel.

v2:
- https://lore.kernel.org/netdev/[email protected]/
v1:
- https://lore.kernel.org/netdev/[email protected]/
====================

Link: https://patch.msgid.link/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>

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