tree c8ea29b9d01ba28d484cf2d4c4a0cd576d598b79
parent 5bade101eceedb716e39bd35b2928c465e3fbd10
author Johannes Berg <johannes.berg@intel.com> 1317305078 +0200
committer John W. Linville <linville@tuxdriver.com> 1317412641 -0400

mac80211: explicitly notify drivers of frame release

iwlwifi needs to know the number of frames that are
going to be sent to a station while it is asleep so
it can properly handle the uCode blocking of that
station.

Before uAPSD, we got by by telling the device that
a single frame was going to be released whenever we
encountered IEEE80211_TX_CTL_POLL_RESPONSE. With
uAPSD, however, that is no longer possible since
there could be more than a single frame.

To support this model, add a new callback to notify
drivers when frames are going to be released.

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