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5635723401
linux/net/mac80211
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Yibo Zhao 5635723401 mac80211: only warn once on chanctx_conf being NULL 
In multiple SSID cases, it takes time to prepare every AP interface
to be ready in initializing phase. If a sta already knows everything it
needs to join one of the APs and sends authentication to the AP which
is not fully prepared at this point of time, AP's channel context
could be NULL. As a result, warning message occurs.

Even worse, if the AP is under attack via tools such as MDK3 and massive
authentication requests are received in a very short time, console will
be hung due to kernel warning messages.

WARN_ON_ONCE() could be a better way for indicating warning messages
without duplicate messages to flood the console.

Johannes: We still need to address the underlying problem, but we
          don't really have a good handle on it yet. Suppress the
          worst side-effects for now.

Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
Signed-off-by: Yibo Zhao <yiboz@codeaurora.org>
[johannes: add note, change subject]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-06-14 15:46:33 +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 support for HE 2018-06-18 22:40:32 +02:00
agg-tx.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
cfg.c mac80211: probe unexercised mesh links 2019-04-26 13:02:11 +02:00
chan.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
debug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs_key.c
debugfs_key.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs_netdev.c mac80211: don't attempt to rename ERR_PTR() debugfs dirs 2019-04-23 13:47:05 +02:00
debugfs_netdev.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs_sta.c mac80211: update HE IEs to D3.3 2019-02-22 13:46:55 +01:00
debugfs_sta.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs.c mac80211: debugfs option to force TX status frames 2019-04-26 13:02:11 +02:00
debugfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
driver-ops.c mac80211: store tx power value from user to station 2019-04-26 13:02:11 +02:00
driver-ops.h Various updates, notably: 2019-04-26 16:05:52 -04:00
ethtool.c mac80211: use BIT_ULL for NL80211_STA_INFO_* attribute types 2018-06-29 09:53:09 +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
he.c mac80211: add support for HE 2018-06-18 22:40:32 +02:00
ht.c mac80211: fix RX STBC override byte order 2019-04-10 14:13:54 +02:00
ibss.c mac80211: pass bssids to elements parsing function 2019-02-08 13:51:50 +01:00
ieee80211_i.h mac80211: only warn once on chanctx_conf being NULL 2019-06-14 15:46:33 +02:00
iface.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
Kconfig mac80211: rewrite Kconfig text for mesh 2018-12-05 15:32:28 +01:00
key.c mac80211: remove set but not used variable 'old' 2019-05-24 11:26:44 +02:00
key.h mac80211: IEEE 802.11 Extended Key ID support 2019-04-26 13:02:11 +02:00
led.c leds: triggers: let struct led_trigger::activate() return an error code 2018-07-05 23:21:10 +02:00
led.h
main.c mac80211: Set CAN_REPLACE_PTK0 for SW crypto only drivers 2019-04-26 13:02:11 +02:00
Makefile mac80211: minstrel: merge with minstrel_ht, always enable VHT support 2018-10-11 16:01:01 +02:00
mesh_hwmp.c mac80211: probe unexercised mesh links 2019-04-26 13:02:11 +02:00
mesh_pathtbl.c Various updates, notably: 2019-04-26 16:05:52 -04:00
mesh_plink.c mac80211: pass bssids to elements parsing function 2019-02-08 13:51:50 +01:00
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: free peer keys before vif down in mesh 2019-05-29 11:10:15 +02:00
mesh.h mac80211: Add support for NL80211_STA_INFO_AIRTIME_LINK_METRIC 2019-04-08 13:58:10 +02:00
michael.c mac80211: add get TID helper 2018-02-22 21:13:03 +01:00
michael.h
mlme.c mac80211: handle deauthentication/disassociation from TDLS peer 2019-05-24 11:26:44 +02:00
ocb.c mac80211: Convert timers to use timer_setup() 2017-11-20 16:55:11 +01:00
offchannel.c mac80211: support scan features for improved scan privacy 2018-06-15 13:34:40 +02:00
pm.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rate.c mac80211: Dynamically set CoDel parameters per station 2017-05-17 16:03:40 +02:00
rate.h mac80211: minstrel: merge with minstrel_ht, always enable VHT support 2018-10-11 16:01:01 +02:00
rc80211_minstrel_debugfs.c mac80211: rc80211_minstrel: remove variance / stddev calculation 2018-10-11 16:01:05 +02:00
rc80211_minstrel_ht_debugfs.c mac80211: minstrel_ht: add flag to indicate missing/inaccurate tx A-MPDU length 2019-01-19 09:56:56 +01:00
rc80211_minstrel_ht.c mac80211: minstrel_ht: automatically calculate rate duration shift 2019-04-26 13:02:11 +02:00
rc80211_minstrel_ht.h mac80211: minstrel_ht: add support for rates with 4 spatial streams 2019-04-26 13:02:11 +02:00
rc80211_minstrel.c mac80211: rc80211_minstrel: remove variance / stddev calculation 2018-10-11 16:01:05 +02:00
rc80211_minstrel.h mac80211: rc80211_minstrel: remove variance / stddev calculation 2018-10-11 16:01:05 +02:00
rx.c mac80211: drop robust management frames from unknown TA 2019-06-14 15:46:33 +02:00
scan.c mac80211: support multi-bssid 2019-02-08 13:56:37 +01:00
spectmgmt.c mac80211: support max channel switch time element 2019-02-22 13:42:54 +01:00
sta_info.c mac80211: IEEE 802.11 Extended Key ID support 2019-04-26 13:02:11 +02:00
sta_info.h mac80211: fix missing/malformed documentation 2019-02-01 12:11:13 +01:00
status.c mac80211: Add airtime accounting and scheduling to TXQs 2019-01-19 09:31:43 +01:00
tdls.c mac80211: handle deauthentication/disassociation from TDLS peer 2019-05-24 11:26:44 +02:00
tkip.c
tkip.h
trace_msg.h mac80211: Increase MAX_MSG_LEN 2019-03-29 11:20:36 +01:00
trace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace.h mac80211: store tx power value from user to station 2019-04-26 13:02:11 +02:00
tx.c Various updates, notably: 2019-04-26 16:05:52 -04:00
util.c {nl,mac}80211: allow 4addr AP operation on crypto controlled devices 2019-05-24 11:26:54 +02:00
vht.c mac80211: copy VHT EXT NSS BW Support/Capable data to station 2018-09-05 10:03:14 +02:00
wep.c crypto: drop mask=CRYPTO_ALG_ASYNC from 'cipher' tfm allocations 2018-11-20 14:26:55 +08:00
wep.h
wme.c mac80211: when using iTXQ, select the queue in ieee80211_subif_start_xmit 2019-04-26 13:02:11 +02:00
wme.h mac80211: when using iTXQ, select the queue in ieee80211_subif_start_xmit 2019-04-26 13:02:11 +02:00
wpa.c mac80211: Do not use stack memory with scatterlist for GMAC 2019-05-28 09:22:12 +02:00
wpa.h