Looks fine to me at first glance.  I do wonder if there are no events at all
you could hook to rfkill_force_state() instead of (or in addition to) using
the get_state()?

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
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