Logically, the filter adjusting belongs with
starting/stopping mesh, not interface up/down,
so move it there.
Tested-by: NJavier Cardona <javier@cozybit.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>