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authorJohannes Berg <johannes.berg@intel.com>2011-09-29 16:04:35 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-09-30 15:57:18 -0400
commitdeeaee197b0fa694ba6c8f02cdb57b3be7115b4f (patch)
tree9cdd2ce5786ceb60c68327da441913b56de9726c /crypto/serpent.c
parentce662b44ce22e3e8886104d5feb2a451d7ba560f (diff)
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op-kernel-dev-deeaee197b0fa694ba6c8f02cdb57b3be7115b4f.tar.gz
mac80211: reply only once to each PS-poll
If a PS-poll frame is retried (but was received) there is no way to detect that since it has no sequence number. As a consequence, the standard asks us to not react to PS-poll frames until the response to one made it out (was ACKed or lost). Implement this by using the WLAN_STA_SP flags to also indicate a PS-Poll "service period" and the IEEE80211_TX_STATUS_EOSP flag for the response packet to indicate the end of the "SP" as usual. We could use separate flags, but that will most likely completely confuse drivers, and while the standard doesn't exclude simultaneously polling using uAPSD and PS-Poll, doing that seems quite problematic. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'crypto/serpent.c')
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