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5635723401
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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
..
6lowpan 6lowpan: Off by one handling ->nexthdr 2019-04-23 19:09:58 +02:00
9p 9p/net: fix memory leak in p9_client_create 2019-03-13 11:50:04 +01:00
802
8021q vlan: disable SIOCSHWTSTAMP in container 2019-05-09 09:31:16 -07:00
appletalk Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
atm net: atm: clean up a range check 2019-05-05 10:25:52 -07:00
ax25 net: ax25: fix misuse of %x 2019-04-21 10:37:26 -07:00
batman-adv This feature/cleanup patchset includes the following patches: 2019-05-09 09:44:17 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
bpf bpf: Introduce bpf sk local storage 2019-04-27 09:07:04 -07:00
bpfilter bpfilter: re-add header search paths to tools include to fix build error 2019-02-23 13:34:40 -08:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2019-05-13 08:55:15 -07:00
caif net: caif: avoid using qdisc_qlen() 2019-04-10 12:20:46 -07:00
can netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
ceph Printk changes for 5.2 2019-05-07 09:18:12 -07:00
core flow_dissector: disable preemption around BPF calls 2019-05-13 09:53:42 -07:00
dcb netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
dccp net: dccp : proto: remove Unneeded variable "err" 2019-05-12 13:21:30 -07:00
decnet netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
dns_resolver dns: remove redundant zero length namelen check 2019-04-11 14:01:08 -07:00
dsa net: dsa: Initialize DSA_SKB_CB(skb)->deferred_xmit variable 2019-05-12 13:19:46 -07:00
ethernet net: ethernet: support of_get_mac_address new ERR_PTR error 2019-05-07 12:22:47 -07:00
hsr genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
ieee802154 genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
ife
ipv4 net/tcp: use deferred jump label for TCP acked data hook 2019-05-09 11:13:57 -07:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-07 17:22:09 -07:00
iucv
kcm kcm: switch order of device registration to fix a crash 2019-04-01 14:59:20 -07:00
key xfrm: clean up xfrm protocol checks 2019-03-26 08:35:36 +01:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-07 17:22:09 -07:00
l3mdev
lapb
llc llc: Check address length before reading address field 2019-04-12 10:25:03 -07:00
mac80211 mac80211: only warn once on chanctx_conf being NULL 2019-06-14 15:46:33 +02:00
mac802154
mpls netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
ncsi genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2019-05-13 08:55:15 -07:00
netlabel genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
netlink genetlink: do not validate dump requests if there is no policy 2019-05-04 01:27:10 -04:00
netrom net: rework SIOCGSTAMP ioctl handling 2019-04-19 14:07:40 -07:00
nfc genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
nsh
openvswitch openvswitch: Replace removed NF_NAT_NEEDED with IS_ENABLED(CONFIG_NF_NAT) 2019-05-08 09:43:15 -07:00
packet packet: Fix error path in packet_init 2019-05-09 13:45:46 -07:00
phonet netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
psample genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
qrtr net: qrtr: use protocol endiannes variable 2019-05-11 09:59:48 -07:00
rds net: rds: fix spelling mistake "syctl" -> "sysctl" 2019-05-05 10:19:43 -07:00
rfkill *: convert stream-like files from nonseekable_open -> stream_open 2019-05-06 17:46:41 +03:00
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-25 23:52:29 -04:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
sched net/sched: avoid double free on matchall reoffload 2019-05-08 16:34:58 -07:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
smc 5.2 Merge Window pull request 2019-05-09 09:02:46 -07:00
strparser net: strparser: make it explicitly non-modular 2019-04-22 21:50:54 -07:00
sunrpc NFS client updates for Linux 5.2 2019-05-09 14:33:15 -07:00
switchdev switchdev: Remove unused transaction item queue 2019-03-01 21:35:19 -08:00
tipc tipc: fix hanging clients using poll with EPOLLOUT flag 2019-05-09 09:26:09 -07:00
tls net/tls: handle errors from padding_length() 2019-05-09 16:37:39 -07:00
unix datagram: remove rendundant 'peeked' argument 2019-04-08 09:51:54 -07:00
vmw_vsock vsock/virtio: fix kernel panic from virtio_transport_reset_no_sock 2019-03-08 15:15:44 -08:00
wimax genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
wireless nl80211: fill all policy .type entries 2019-05-29 11:12:11 +02:00
x25 net: rework SIOCGSTAMP ioctl handling 2019-04-19 14:07:40 -07:00
xdp xsk: fix XDP socket ring buffer memory ordering 2019-04-16 20:13:10 -07:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-05-07 22:03:58 -07:00
compat.c net: rework SIOCGSTAMP ioctl handling 2019-04-19 14:07:40 -07:00
Kconfig net: devlink: select NET_DEVLINK from drivers 2019-03-24 14:55:31 -04:00
Makefile net: split out functions related to registering inflight socket files 2019-02-28 08:24:23 -07:00
socket.c net: use indirect calls helpers at the socket layer 2019-05-05 10:38:04 -07:00
sysctl_net.c