On 13/05/2021 02:19, Linus Lüssing wrote:

To properly support routable multicast addresses in batman-adv in a
group-aware way, a batman-adv node needs to know if it serves multicast
routers.

This adds a function to the bridge to export this so that batman-adv
can then make full use of the Multicast Router Discovery capability of
the bridge.

Signed-off-by: Linus Lüssing <redacted>
---
 include/linux/if_bridge.h |  8 ++++++
 net/bridge/br_multicast.c | 55 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 63 insertions(+)

Acked-by: Nikolay Aleksandrov <redacted>