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linux/net/mac80211
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Emmanuel Grumbach 5b754c994f mac80211: don't send SMPS action frame in AP mode when not needed 
commit b3dd827965 upstream.

mac80211 allows to modify the SMPS state of an AP both,
when it is started, and after it has been started. Such a
change will trigger an action frame to all the peers that
are currently connected, and will be remembered so that
new peers will get notified as soon as they connect (since
the SMPS setting in the beacon may not be the right one).

This means that we need to remember the SMPS state
currently requested as well as the SMPS state that was
configured initially (and advertised in the beacon).
The former is bss->req_smps and the latter is
sdata->smps_mode.

Initially, the AP interface could only be started with
SMPS_OFF, which means that sdata->smps_mode was SMPS_OFF
always. Later, a nl80211 API was added to be able to start
an AP with a different AP mode. That code forgot to update
bss->req_smps and because of that, if the AP interface was
started with SMPS_DYNAMIC, we had:
   sdata->smps_mode = SMPS_DYNAMIC
   bss->req_smps = SMPS_OFF

That configuration made mac80211 think it needs to fire off
an action frame to any new station connecting to the AP in
order to let it know that the actual SMPS configuration is
SMPS_OFF.

Fix that by properly setting bss->req_smps in
ieee80211_start_ap.

Fixes: f699317487 ("mac80211: set smps_mode according to ap params")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-06-24 07:11:14 +02:00
..
aes_ccm.c mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_ccm.h mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_cmac.c mac80211: remove ieee80211_aes_cmac_calculate_k1_k2() 2015-08-13 11:31:45 +02:00
aes_cmac.h mac80111: Add BIP-CMAC-256 cipher 2015-01-27 11:09:13 +01:00
aes_gcm.c mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_gcm.h mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_gmac.c mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
aes_gmac.h mac80211: move struct aead_req off the stack 2016-10-17 16:14:04 +02:00
agg-rx.c mac80211: don't reorder frames with SN smaller than SSN 2017-03-15 10:02:47 +08:00
agg-tx.c mac80211: reject TSPEC TIDs (TSIDs) for aggregation 2016-09-15 10:08:52 +02:00
cfg.c mac80211: don't send SMPS action frame in AP mode when not needed 2017-06-24 07:11:14 +02:00
chan.c mac80211: add boilerplate code for start / stop NAN 2016-09-30 13:21:19 +02:00
debug.h mac80211: 802.11p OCB mode support 2014-11-04 13:18:21 +01:00
debugfs.c mac80211: Export fq memory limit information in debugfs 2016-09-30 13:29:31 +02:00
debugfs.h mac80211: fix some missing includes 2014-04-09 14:49:43 +02:00
debugfs_key.c mac80211: move TKIP TX IVs to public part of key struct 2016-02-24 09:04:38 +01:00
debugfs_key.h mac80211: support separate default keys 2010-12-13 15:23:29 -05:00
debugfs_netdev.c mac80211: add offset_tsf driver op and use it for mesh 2016-09-30 13:45:44 +02:00
debugfs_netdev.h mac80211: fix some missing includes 2014-04-09 14:49:43 +02:00
debugfs_sta.c mac80211: fix tid_agg_rx NULL dereference 2017-01-12 11:39:23 +01:00
debugfs_sta.h mac80211: RCU-ify STA info structure access 2008-03-06 15:30:46 -05:00
driver-ops.c mac80211: add offset_tsf driver op and use it for mesh 2016-09-30 13:45:44 +02:00
driver-ops.h mac80211: add offset_tsf driver op and use it for mesh 2016-09-30 13:45:44 +02:00
ethtool.c mac80211: move station statistics into sub-structs 2015-10-21 10:08:22 +02:00
ht.c mac80211: limit the A-MSDU Tx based on peer's capabilities 2016-02-24 09:04:20 +01:00
ibss.c mac80211: fix IBSS presp allocation size 2017-06-24 07:11:13 +02:00
ieee80211_i.h Merge remote-tracking branch 'net-next/master' into mac80211-next 2016-10-04 09:46:44 +02:00
iface.c mac80211: unconditionally start new netdev queues with iTXQ support 2017-04-12 12:41:12 +02:00
Kconfig mac80211: use DECLARE_EWMA 2015-08-14 17:49:53 +02:00
key.c mac80211: add fast-rx path 2016-04-06 13:18:18 +02:00
key.h mac80211: move TKIP TX IVs to public part of key struct 2016-02-24 09:04:38 +01:00
led.c mac80211: fix throughput LED trigger 2015-05-11 19:16:04 +02:00
led.h mac80211: make LED triggering depend on activation 2015-05-05 14:21:56 +02:00
main.c mac80211: Implement add_nan_func and rm_nan_func 2016-09-30 13:21:52 +02:00
Makefile mac80211: remove event.c 2015-10-14 18:40:26 +02:00
mesh.c mac80211: Fix adding of mesh vendor IEs 2017-02-14 15:25:38 -08:00
mesh.h mac80211: mesh: fix cleanup for mesh pathtable 2016-04-05 21:34:53 +02:00
mesh_hwmp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-09-23 06:46:57 -04:00
mesh_pathtbl.c mac80211: make mpath path fixing more robust 2016-09-12 12:27:14 +02:00
mesh_plink.c mac80211: use common cleanup for user/!user_mpm 2016-06-30 12:06:41 +02:00
mesh_ps.c mac80211: mesh: separate plid and aid concepts 2015-07-17 15:47:11 +02:00
mesh_sync.c mac80211: mesh: decrease max drift 2016-09-30 13:47:00 +02:00
michael.c mac80211: remove ieee80211_get_hdr_info 2008-07-08 14:16:01 -04:00
michael.h mac80211: fix some missing includes 2014-04-09 14:49:43 +02:00
mlme.c cfg80211/mac80211: fix BSS leaks when abandoning assoc attempts 2017-01-09 08:32:17 +01:00
ocb.c mac80211: remove rx_stats.last_rx update after sta alloc 2016-04-06 13:18:15 +02:00
offchannel.c mac80211: fix CMD_FRAME for AP_VLAN 2016-10-12 09:19:12 +02:00
pm.c mac80211: flush delayed work when entering suspend 2017-03-15 10:02:47 +08:00
rate.c cfg80211: remove enum ieee80211_band 2016-04-12 15:56:15 +02:00
rate.h mac80211: remove sta_info debugfs sub-struct 2016-04-05 11:59:05 +02:00
rc80211_minstrel.c cfg80211: remove enum ieee80211_band 2016-04-12 15:56:15 +02:00
rc80211_minstrel.h mac80211: add standard deviation to Minstrel stats 2015-04-01 20:44:33 +02:00
rc80211_minstrel_debugfs.c mac80211: minstrel[_ht]: remove non-ascii debugfs characters 2015-09-29 15:56:47 +02:00
rc80211_minstrel_ht.c cfg80211: remove enum ieee80211_band 2016-04-12 15:56:15 +02:00
rc80211_minstrel_ht.h mac80211: add max lossless throughput per rate 2015-04-01 20:44:32 +02:00
rc80211_minstrel_ht_debugfs.c mac80211: minstrel[_ht]: remove non-ascii debugfs characters 2015-09-29 15:56:47 +02:00
rx.c mac80211: strictly check mesh address extension mode 2017-06-24 07:11:13 +02:00
scan.c mac80211: fix scan completed tracing 2016-09-15 16:46:16 +02:00
spectmgmt.c mac80211: parse wide bandwidth channel switch IE with workaround 2016-07-06 14:55:04 +02:00
sta_info.c mac80211: fix dropped counter in multiqueue RX 2017-06-24 07:11:14 +02:00
sta_info.h mac80211: don't reorder frames with SN smaller than SSN 2017-03-15 10:02:47 +08:00
status.c mac80211: don't handle filtered frames within a BA session 2017-03-15 10:02:48 +08:00
tdls.c mac80211: TDLS: don't require beaconing for AP BW 2016-08-30 08:03:41 +02:00
tkip.c mac80211: move TKIP TX IVs to public part of key struct 2016-02-24 09:04:38 +01:00
tkip.h mac80211: move TKIP TX IVs to public part of key struct 2016-02-24 09:04:38 +01:00
trace.c mac80211: Move message tracepoints to their own header 2015-04-07 12:32:09 -04:00
trace.h mac80211: add offset_tsf driver op and use it for mesh 2016-09-30 13:45:44 +02:00
trace_msg.h mac80211: Move message tracepoints to their own header 2015-04-07 12:32:09 -04:00
tx.c mac80211: initialize fast-xmit 'info' later 2017-01-12 11:39:07 +01:00
util.c mac80211: Move reorder-sensitive TX handlers to after TXQ dequeue 2016-09-30 14:46:57 +02:00
vht.c mac80211: Ignore VHT IE from peer with wrong rx_mcs_map 2016-11-15 14:18:43 +01:00
wep.c mac80211: move WEP tailroom size check 2015-05-11 14:51:29 +02:00
wep.h mac80211: move RX WEP weak IV counting 2012-03-13 14:54:16 -04:00
wme.c mac80211: synchronously reserve TID per station 2014-11-19 18:45:36 +01:00
wme.h mac80211: add WMM admission control support 2014-10-22 10:42:09 +02:00
wpa.c mac80211/wpa: use constant time memory comparison for MACs 2017-06-24 07:11:13 +02:00
wpa.h mac80111: Add BIP-GMAC-128 and BIP-GMAC-256 ciphers 2015-01-27 11:10:13 +01:00