net: bridge: mcast: prepare expiry functions for mcast router split

In preparation for the upcoming split of multicast router state into
their IPv4 and IPv6 variants move the protocol specific timer access to
an ip4 wrapper function.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Linus Lüssing 2021-05-13 15:20:48 +02:00 • committed by David S. Miller
commit ee5fb2223e