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Johannes Berg d13ab64e7a mac80211: fix on-channel remain-on-channel 
commit b4b177a555 upstream.

Jouni reported that if a remain-on-channel was active on the
same channel as the current operating channel, then the ROC
would start, but any frames transmitted using mgmt-tx on the
same channel would get delayed until after the ROC.

The reason for this is that the ROC starts, but doesn't have
any handling for "remain on the same channel", so it stops
the interface queues. The later mgmt-tx then puts the frame
on the interface queues (since it's on the current operating
channel) and thus they get delayed until after the ROC.

To fix this, add some logic to handle remaining on the same
channel specially and not stop the queues etc. in this case.
This not only fixes the bug but also improves behaviour in
this case as data frames etc. can continue to flow.

Reported-by: Jouni Malinen <j@w1.fi>
Tested-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-07 13:25:31 -07:00
..
aes_ccm.c mac80211: use AES_BLOCK_SIZE 2011-07-08 11:11:24 -04:00
aes_ccm.h mac80211: use AES_BLOCK_SIZE 2011-07-08 11:11:24 -04:00
aes_cmac.c mac80211: include export.h in aes_cmac 2012-11-07 18:01:54 +01:00
aes_cmac.h mac80211: fix CMAC races 2011-07-08 11:11:20 -04:00
agg-rx.c mac80211: improve aggregation debug messages 2013-01-18 21:55:15 +01:00
agg-tx.c mac80211: fix aggregation state with current drivers 2013-01-24 15:43:51 +01:00
cfg.c mac80211: release the channel in error path in start_ap 2014-02-22 12:41:26 -08:00
cfg.h
chan.c Merge remote-tracking branch 'wireless-next/master' into mac80211-next 2013-04-22 15:31:43 +02:00
debug.h mac80211: mesh power save basics 2013-02-04 18:57:47 +01:00
debugfs.c mac80211: remove IEEE80211_HW_SCAN_WHILE_IDLE 2013-02-11 18:45:01 +01:00
debugfs.h mac80211: use __printf attribute in debugfs 2012-10-18 09:01:57 +02:00
debugfs_key.c mac80211: move sdata debugfs dir to vif 2013-03-18 20:10:04 +01:00
debugfs_key.h
debugfs_netdev.c mac80211: add beacon stats to debugfs 2013-04-08 09:16:54 +02:00
debugfs_netdev.h
debugfs_sta.c mac80211: add beacon stats to debugfs 2013-04-08 09:16:54 +02:00
debugfs_sta.h
driver-ops.h mac80211: pass queue bitmap to flush operation 2013-03-18 20:15:03 +01:00
event.c
ht.c mac80211: fix HT capability overrides for AP station 2013-03-06 16:36:02 +01:00
ibss.c mac80211: add missing channel context release 2013-09-07 22:09:59 -07:00
ieee80211_i.h mac80211: fix on-channel remain-on-channel 2014-06-07 13:25:31 -07:00
iface.c mac80211: close AP_VLAN interfaces before unregistering all 2013-07-25 14:07:31 -07:00
Kconfig Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
key.c mac80211: batch key free synchronize_net() 2013-03-11 15:16:42 +02:00
key.h mac80211: batch key free synchronize_net() 2013-03-11 15:16:42 +02:00
led.c leds: Rename led_brightness_set() to led_set_brightness() 2012-07-24 07:52:34 +08:00
led.h
main.c mac80211: exclude AP_VLAN interfaces from tx power calculation 2014-05-13 13:59:44 +02:00
Makefile mac80211: mesh power save basics 2013-02-04 18:57:47 +01:00
mesh.c Merge remote-tracking branch 'wireless-next/master' into mac80211-next 2013-04-22 15:31:43 +02:00
mesh.h mac80211: return new mpath from mesh_path_add() 2013-04-08 09:16:59 +02:00
mesh_hwmp.c mac80211: parse VHT channel switch IEs 2013-04-16 15:29:45 +02:00
mesh_pathtbl.c mac80211: return new mpath from mesh_path_add() 2013-04-08 09:16:59 +02:00
mesh_plink.c mac80211: parse VHT channel switch IEs 2013-04-16 15:29:45 +02:00
mesh_ps.c mac80211: clear sequence/fragment number in QoS-null frames 2014-03-23 21:38:12 -07:00
mesh_sync.c mac80211: clean up mesh code 2013-02-15 15:46:37 +01:00
michael.c
michael.h
mlme.c mac80211: fix suspend vs. authentication race 2014-06-07 13:25:31 -07:00
offchannel.c mac80211: fix on-channel remain-on-channel 2014-06-07 13:25:31 -07:00
pm.c mac80211: fix suspend vs. authentication race 2014-06-07 13:25:31 -07:00
rate.c mac80211: Fix rate control mask matching call 2013-06-12 09:12:43 +02:00
rate.h mac80211: track number of spatial streams 2013-02-15 09:41:31 +01:00
rc80211_minstrel.c mac80211/minstrel: fix NULL pointer dereference issue 2013-08-11 18:35:22 -07:00
rc80211_minstrel.h mac80211/minstrel: use the new rate control API 2013-04-22 16:16:41 +02:00
rc80211_minstrel_debugfs.c mac80211: cosmetics for minstrel_debugfs 2013-04-17 17:08:23 +02:00
rc80211_minstrel_ht.c mac80211: add a flag to indicate CCK support for HT clients 2013-09-07 22:09:59 -07:00
rc80211_minstrel_ht.h mac80211/minstrel_ht: use the new rate control API 2013-04-22 16:16:41 +02:00
rc80211_minstrel_ht_debugfs.c mac80211/minstrel_ht: add support for using CCK rates 2013-02-13 10:56:33 +01:00
rc80211_pid.h
rc80211_pid_algo.c net: fix assignment of 0/1 to bool variables. 2011-12-19 22:27:29 -05:00
rc80211_pid_debugfs.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
rx.c mac80211: don't attempt to reorder multicast frames 2013-12-20 07:45:09 -08:00
scan.c mac80211: correctly close cancelled scans 2013-11-13 12:05:30 +09:00
spectmgmt.c mac80211: Remove unnecessary OOM logging messages 2011-09-13 15:45:02 -04:00
sta_info.c mac80211: clear sequence/fragment number in QoS-null frames 2014-03-23 21:38:12 -07:00
sta_info.h mac80211: fix AP powersave TX vs. wakeup race 2014-03-23 21:38:11 -07:00
status.c mac80211: update sta->last_rx on acked tx frames 2013-11-13 12:05:30 +09:00
tkip.c mac80211: use just spin_lock() in ieee80211_get_tkip_p2k() 2013-05-16 22:38:06 +02:00
tkip.h
trace.c mac80211: trace debug messages 2012-06-24 11:33:18 +02:00
trace.h mac80211: support secondary channel offset in CSA 2013-04-16 15:29:44 +02:00
tx.c mac80211: fix WPA with VLAN on AP side with ps-sta again 2014-05-13 13:59:43 +02:00
util.c mac80211: fix crash if bitrate calculation goes wrong 2013-11-13 12:05:30 +09:00
vht.c mac80211: restrict peer's VHT capabilities to own 2013-03-06 16:36:03 +01:00
wep.c mac80211: fix network header location when adding encryption headers 2012-05-16 12:47:43 -04:00
wep.h mac80211: move RX WEP weak IV counting 2012-03-13 14:54:16 -04:00
wme.c mac80211: send control port protocol frames to the VO queue 2014-03-23 21:38:11 -07:00
wme.h mac80211: save wmm_acm per sdata 2012-06-20 17:35:22 +02:00
wpa.c mac80211: use spin_lock_bh() for TKIP lock 2013-02-15 09:41:13 +01:00
wpa.h mac80211: fix tx->skb NULL pointer dereference 2012-01-16 15:01:16 -05:00