libnetlink: turn rtnetlink error answers into debug msgs

They should not be logged by default

Signed-off-by: Felix Fietkau <[email protected]>

bridge: check port bpdu filter status and apply it to the config

Signed-off-by: Felix Fietkau <[email protected]>

libnetlink: fix netlink buffer space handling

Significantly increaese buffer size in order to avoid missing events
Do not stop polling socket after running out of buffer space

Signed-off-by: Felix Fietkau <[email protected]>

brmon: continue polling the socket after an error occured

Fixes a corner case with edge-trigger epoll

Signed-off-by: Felix Fietkau <[email protected]>

Initial import

Signed-off-by: Felix Fietkau <[email protected]>