1. 22 Nov, 2010 31 commits
  2. 18 Nov, 2010 8 commits
  3. 17 Nov, 2010 1 commit
    • Johannes Berg's avatar
      mac80211: fix powersaving clients races · 50a9432d
      Johannes Berg authored
      The code to handle powersaving stations has a race:
      when the powersave flag is lifted from a station,
      we could transmit a packet that is being processed
      for TX at the same time right away, even if there
      are other frames queued for it. This would cause
      frame reordering. To fix this, lift the flag only
      under the appropriate lock that blocks TX.
      
      Additionally, the code to allow drivers to block a
      station while frames for it are on the HW queue is
      never re-enabled the station, so traffic would get
      stuck indefinitely. Fix this by clearing the flag
      for this appropriately.
      
      Finally, as an optimisation, don't do anything if
      the driver unblocks an already unblocked station.
      Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      50a9432d