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b1b1ae2c1c
linux_dsm_epyc7002/net/mac80211
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Johannes Berg b1b1ae2c1c mac80211: don't track HT capability changes 
The code here (more or less accidentally) tracks the HT capability of
the AP when connected, and we found at least one AP that erroneously
toggles its 20/40 capability bit when changing between 20/40 MHz. The
connection to the AP is then broken because we set the 40 MHz disable
flag based on this, as soon as it switches to 20 MHz, but because the
flag then changed, we disconnect.

I'd be inclined to just ignore this issue, since we then reconnect
while the AP is in 20 MHz mode and never use 40 MHz with it again,
but this code is a bit strange anyway - we don't use the capabilities
for anything else.

Change the code to simply not track the HT capabilities at all, which
assumes that the AP at least sets 20/40 capability when operating in
40 MHz (or higher). If not, rate scaling might end up using only the
narrower bandwidth.

The new behaviour also mirrors what VHT does, where we only check the
VHT operation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-10-13 14:29:02 +02:00
..
aead_api.c mac80211: use crypto_aead_authsize() 2017-10-11 15:46:45 +02:00
aead_api.h mac80211: aead api to reduce redundancy 2017-10-11 09:37:35 +02:00
aes_ccm.h mac80211: aead api to reduce redundancy 2017-10-11 09:37:35 +02:00
aes_cmac.c mac80211: aes-cmac: switch to shash CMAC driver 2017-02-08 09:19:33 +01:00
aes_cmac.h mac80211: aes-cmac: switch to shash CMAC driver 2017-02-08 09:19:33 +01:00
aes_gcm.h mac80211: aead api to reduce redundancy 2017-10-11 09:37:35 +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: add documentation to ieee80211_rx_ba_offl() 2017-09-21 11:42:00 +02:00
agg-tx.c mac80211: agg-tx: call drv_wake_tx_queue in proper context 2017-09-05 16:25:07 +02:00
cfg.c networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
chan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-01-17 15:19:37 -05:00
debug.h mac80211: 802.11p OCB mode support 2014-11-04 13:18:21 +01:00
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 networking: convert many more places to skb_put_zero() 2017-06-16 11:48:35 -04:00
debugfs_netdev.h mac80211: fix some missing includes 2014-04-09 14:49:43 +02:00
debugfs_sta.c mac80211: Dynamically set CoDel parameters per station 2017-05-17 16:03:40 +02:00
debugfs_sta.h
debugfs.c mac80211: check for allocation failure in debugfs code 2017-02-08 10:05:07 +01:00
debugfs.h mac80211: fix some missing includes 2014-04-09 14:49:43 +02:00
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
fils_aead.c Some more updates: 2017-02-10 14:31:51 -05:00
fils_aead.h mac80211: FILS AEAD protection for station mode association frames 2016-10-27 16:03:25 +02:00
ht.c mac80211: Simplify locking in ieee80211_sta_tear_down_BA_sessions() 2017-09-21 11:42:01 +02:00
ibss.c networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
ieee80211_i.h mac80211: only remove AP VLAN frames from TXQ 2017-10-11 09:49:40 +02:00
iface.c mac80211: only remove AP VLAN frames from TXQ 2017-10-11 09:49:40 +02:00
Kconfig mac80211: fils_aead: Use crypto api CMAC shash rather than bare cipher 2017-02-08 09:19:17 +01:00
key.c mac80211: don't call drv_set_default_unicast_key() for VLANs 2016-12-13 15:57:59 +01:00
key.h mac80211: aes-cmac: switch to shash CMAC driver 2017-02-08 09:19:33 +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: disentangle iflist_mtx and chanctx_mtx 2017-04-26 23:17:44 +02:00
Makefile mac80211: aead api to reduce redundancy 2017-10-11 09:37:35 +02:00
mesh_hwmp.c mac80211: use offsetofend() 2017-09-21 11:42:01 +02:00
mesh_pathtbl.c mac80211: Use setup_timer instead of init_timer for mesh path 2017-03-16 10:54:04 +01:00
mesh_plink.c net/mac80211/mesh_plink: Convert timers to use timer_setup() 2017-10-06 11:47:52 +02:00
mesh_ps.c networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
mesh_sync.c mac80211: Use appropriate name for functions and messages 2016-12-13 16:22:27 +01:00
mesh.c mac80211: use offsetofend() 2017-09-21 11:42:01 +02:00
mesh.h net/mac80211/mesh_plink: Convert timers to use timer_setup() 2017-10-06 11:47:52 +02:00
michael.c
michael.h mac80211: fix some missing includes 2014-04-09 14:49:43 +02:00
mlme.c mac80211: don't track HT capability changes 2017-10-13 14:29:02 +02:00
ocb.c mac80211: remove rx_stats.last_rx update after sta alloc 2016-04-06 13:18:15 +02:00
offchannel.c mac80211: flush hw_roc_start work before cancelling the ROC 2017-09-05 16:25:07 +02:00
pm.c cfg80211: add request id to cfg80211_sched_scan_*() api 2017-04-28 14:51:43 +02:00
rate.c mac80211: Dynamically set CoDel parameters per station 2017-05-17 16:03:40 +02:00
rate.h mac80211: make rate control tx status API more extensible 2017-04-28 10:57:33 +02:00
rc80211_minstrel_debugfs.c mac80211: minstrel: store probability variance instead of standard deviation 2016-12-15 11:07:52 +01:00
rc80211_minstrel_ht_debugfs.c mac80211: minstrel: store probability variance instead of standard deviation 2016-12-15 11:07:52 +01:00
rc80211_minstrel_ht.c mac80211: make rate control tx status API more extensible 2017-04-28 10:57:33 +02:00
rc80211_minstrel_ht.h mac80211: minstrel_ht: move supported bitrate mask out of group data 2016-12-15 11:07:52 +01:00
rc80211_minstrel.c mac80211: make rate control tx status API more extensible 2017-04-28 10:57:33 +02:00
rc80211_minstrel.h mac80211: minstrel: make prob_ewma u16 instead of u32 2016-12-15 11:07:53 +01:00
rx.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
scan.c mac80211: oce: enable receiving of bcast probe resp 2017-09-21 11:42:00 +02:00
spectmgmt.c networking: convert many more places to skb_put_zero() 2017-06-16 11:48:35 -04:00
sta_info.c net/mac80211/mesh_plink: Convert timers to use timer_setup() 2017-10-06 11:47:52 +02:00
sta_info.h net/mac80211/mesh_plink: Convert timers to use timer_setup() 2017-10-06 11:47:52 +02:00
status.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
tdls.c net: manual clean code which call skb_put_[data:zero] 2017-06-20 13:30:15 -04:00
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_msg.h mac80211: Move message tracepoints to their own header 2015-04-07 12:32:09 -04:00
trace.c mac80211: Move message tracepoints to their own header 2015-04-07 12:32:09 -04:00
trace.h mac80211: add the action to the drv_ampdu_action tracepoint 2017-06-13 11:06:39 +02:00
tx.c mac80211: only remove AP VLAN frames from TXQ 2017-10-11 09:49:40 +02:00
util.c mac80211: use offsetofend() 2017-09-21 11:42:01 +02:00
vht.c mac80211: fix bandwidth computation for TDLS peers 2017-10-02 14:06:19 +02:00
wep.c mac80211: Add RX flag to indicate ICV stripped 2017-01-12 10:15:18 +01:00
wep.h mac80211: move RX WEP weak IV counting 2012-03-13 14:54:16 -04:00
wme.c mac80211: preserve more bits when building QoS header 2016-10-12 14:17:13 +02:00
wme.h mac80211: add WMM admission control support 2014-10-22 10:42:09 +02:00
wpa.c mac80211: aead api to reduce redundancy 2017-10-11 09:37:35 +02:00
wpa.h mac80111: Add BIP-GMAC-128 and BIP-GMAC-256 ciphers 2015-01-27 11:10:13 +01:00