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  1. 03 Jun, 2009 1 commit
    • Johannes Berg's avatar
      rfkill: rewrite · 19d337df
      Johannes Berg authored
      This patch completely rewrites the rfkill core to address
      the following deficiencies:
      
       * all rfkill drivers need to implement polling where necessary
         rather than having one central implementation
      
       * updating the rfkill state cannot be done from arbitrary
         contexts, forcing drivers to use schedule_work and requiring
         lots of code
      
       * rfkill drivers need to keep track of soft/hard blocked
         internally -- the core should do this
      
       * the rfkill API has many unexpected quirks, for example being
         asymmetric wrt. alloc/free and register/unregister
      
       * rfkill can call back into a driver from within a function the
         driver called -- this is prone to deadlocks and generally
         should be avoided
      
       * rfkill-input pointlessly is a separate module
      
       * drivers need to #ifdef rfkill functions (unless they want to
         depend on or select RFKILL) -- rfkill should provide inlines
         that do nothing if it isn't compiled in
      
       * the rfkill structure is not opaque -- drivers need to initialise
         it correctly (lots of sanity checking code required) -- instead
         force drivers to pass the right variables to rfkill_alloc()
      
       * the documentation is hard to read because it always assumes the
         reader is completely clueless and contains way TOO MANY CAPS
      
       * the rfkill code needlessly uses a lot of locks and atomic
         operations in locked sections
      
       * fix LED trigger to actually change the LED when the radio state
         changes -- this wasn't done before
      Tested-by: default avatarAlan Jenkins <[email protected]>
      Signed-off-by: Henrique de Moraes Holschuh <[email protected]> [thinkpad]
      Signed-off-by: Johannes Berg's avatarJohannes Berg <[email protected]>
      Signed-off-by: default avatarJohn W. Linville <[email protected]>
      19d337df
  2. 07 May, 2007 1 commit