tree 3efa9772e7428d800fd2d236c558ca37c0ef7bb4
parent c868cb35d013896ab6a80a554fb88baef06cedcd
author Johannes Berg <johannes.berg@intel.com> 1317305068 +0200
committer John W. Linville <linville@tuxdriver.com> 1317412631 -0400

mac80211: also expire filtered frames

mac80211 will expire normal PS-buffered frames, but
if the device rejected some frames for a sleeping
station, these won't be on the ps_tx_buf queue but
on the tx_filtered queue instead; this is done to
avoid reordering.

However, mac80211 will not expire frames from the
filtered queue, let's fix that.

Also add a more comments to what all this expiry is
doing and how it works.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>