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Sergey Matyukevich f213a1d5c0 mac80211/cfg80211: update bss channel on channel switch 
[ Upstream commit 5dc8cdce1d ]

FullMAC STAs have no way to update bss channel after CSA channel switch
completion. As a result, user-space tools may provide inconsistent
channel info. For instance, consider the following two commands:
$ sudo iw dev wlan0 link
$ sudo iw dev wlan0 info
The latter command gets channel info from the hardware, so most probably
its output will be correct. However the former command gets channel info
from scan cache, so its output will contain outdated channel info.
In fact, current bss channel info will not be updated until the
next [re-]connect.

Note that mac80211 STAs have a workaround for this, but it requires
access to internal cfg80211 data, see ieee80211_chswitch_work:

	/* XXX: shouldn't really modify cfg80211-owned data! */
	ifmgd->associated->channel = sdata->csa_chandef.chan;

This patch suggests to convert mac80211 workaround into cfg80211 behavior
and to update current bss channel in cfg80211_ch_switch_notify.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-05-31 06:47:22 -07:00
..
6lowpan 6lowpan: iphc: reset mac_header after decompress to fix panic 2018-10-03 17:00:47 -07:00
9p 9p: do not trust pdu content for stat item size 2019-04-20 09:15:04 +02:00
802 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
8021q vlan: disable SIOCSHWTSTAMP in container 2019-05-16 19:42:34 +02:00
appletalk appletalk: Fix use-after-free in atalk_proc_exit 2019-04-20 09:15:07 +02:00
atm net: atm: Fix potential Spectre v1 vulnerabilities 2019-04-27 09:35:33 +02:00
ax25 ax25: fix possible use-after-free 2019-02-23 09:06:44 +01:00
batman-adv batman-adv: mcast: fix multicast tt/tvlv worker locking 2019-05-31 06:47:13 -07:00
bluetooth Bluetooth: Align minimum encryption key size for LE and BR/EDR connections 2019-05-10 17:53:15 +02:00
bpf
bridge bridge: Fix error path for kobject_init_and_add() 2019-05-16 19:42:33 +02:00
caif caif: reduce stack size with KASAN 2019-05-08 07:20:45 +02:00
can can: bcm: check timer values before ktime conversion 2019-01-31 08:13:46 +01:00
ceph libceph: wait for latest osdmap in ceph_monc_blacklist_add() 2019-03-27 14:13:51 +09:00
core net: avoid weird emergency message 2019-05-25 18:25:16 +02:00
dcb net: dcb: For wild-card lookups, use priority -1, not 0 2018-09-19 22:43:43 +02:00
dccp dccp: do not use ipv6 header for ipv4 flow 2019-04-03 06:25:08 +02:00
decnet dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock 2018-02-25 11:07:52 +01:00
dns_resolver KEYS: DNS: fix parsing multiple options 2018-07-22 14:28:49 +02:00
dsa net: dsa: Fix error cleanup path in dsa_init_module 2019-05-16 19:42:34 +02:00
ethernet
hsr net/hsr: fix possible crash in add_timer() 2019-03-19 13:13:22 +01:00
ieee802154 ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module 2019-04-27 09:35:40 +02:00
ife net: sched: ife: check on metadata length 2018-04-29 11:33:13 +02:00
ipv4 net: erspan: fix use-after-free 2019-05-31 06:47:14 -07:00
ipv6 xfrm6_tunnel: Fix potential panic when unloading xfrm6_tunnel module 2019-05-25 18:25:34 +02:00
ipx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iucv net/iucv: Free memory obtained by kzalloc 2018-03-31 18:10:41 +02:00
kcm kcm: switch order of device registration to fix a crash 2019-04-17 08:37:45 +02:00
key af_key: unconditionally clone on broadcast 2019-03-23 14:35:14 +01:00
l2tp l2tp: fix infoleak in l2tp_ip6_recvmsg() 2019-03-19 13:13:22 +01:00
l3mdev
lapb
llc llc: do not use sk_eat_skb() 2018-12-01 09:42:51 +01:00
mac80211 mac80211/cfg80211: update bss channel on channel switch 2019-05-31 06:47:22 -07:00
mac802154 net: mac802154: tx: expand tailroom if necessary 2018-09-09 19:55:52 +02:00
mpls mpls: Return error for RTA_GATEWAY attribute 2019-03-13 14:03:09 -07:00
ncsi net/ncsi: Fix length of GVI response packet 2017-10-21 01:56:38 +01:00
netfilter netfilter: nf_tables: warn when expr implements only one of activate/deactivate 2019-05-16 19:42:30 +02:00
netlabel netlabel: fix out-of-bounds memory accesses 2019-03-13 14:03:08 -07:00
netlink genetlink: Fix a memory leak on error path 2019-04-03 06:25:08 +02:00
netrom netrom: switch to sock timer API 2019-02-06 17:31:32 +01:00
nfc NFC: nci: Add some bounds checking in nci_hci_cmd_received() 2019-05-16 19:42:32 +02:00
nsh nsh: set mac len based on inner packet 2018-07-22 14:28:49 +02:00
openvswitch ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module 2019-04-27 09:35:40 +02:00
packet packet: Fix error path in packet_init 2019-05-16 19:42:34 +02:00
phonet phonet: fix building with clang 2019-03-23 14:35:16 +01:00
psample MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
qrtr net: qrtr: Broadcast messages only from control port 2018-08-24 13:09:13 +02:00
rds net: rds: exchange of 8K and 1M pool 2019-05-02 09:40:33 +02:00
rfkill rfkill: gpio: fix memory leak in probe error path 2018-05-16 10:10:26 +02:00
rose net/rose: fix unbound loop in rose_loopback_timer() 2019-05-02 09:40:34 +02:00
rxrpc rxrpc: Fix net namespace cleanup 2019-05-08 07:20:44 +02:00
sched net_sched: fix two more memory leaks in cls_tcindex 2019-05-16 19:42:30 +02:00
sctp sctp: avoid running the sctp state machine recursively 2019-05-08 07:20:44 +02:00
smc net/smc: fix TCP fallback socket release 2019-01-09 17:14:46 +01:00
strparser strparser: Remove early eaten to fix full tcp receive buffer stall 2018-07-22 14:28:47 +02:00
sunrpc sunrpc: don't mark uninitialised items as VALID. 2019-05-02 09:40:29 +02:00
switchdev
tipc tipc: fix modprobe tipc failed after switch order of device registration 2019-05-25 18:25:17 +02:00
tls net/tls: Fixed return value when tls_complete_pending_work() fails 2018-12-05 19:41:11 +01:00
unix missing barriers in some of unix_sock ->addr and ->path accesses 2019-03-19 13:13:24 +01:00
vmw_vsock vsock/virtio: Initialize core virtio vsock before registering the driver 2019-05-25 18:25:17 +02:00
wimax License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wireless mac80211/cfg80211: update bss channel on channel switch 2019-05-31 06:47:22 -07:00
x25 net/x25: fix a race in x25_bind() 2019-03-19 13:13:23 +01:00
xfrm xfrm: policy: Fix out-of-bound array accesses in __xfrm_policy_unlink 2019-05-25 18:25:33 +02:00
compat.c sock: Make sock->sk_stamp thread-safe 2019-01-09 17:14:46 +01:00
Kconfig net: Remove CONFIG_NETFILTER_DEBUG and _ASSERT() macros. 2017-09-04 13:25:20 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
socket.c net: socket: set sock->sk to NULL after calling proto_ops::release() 2019-03-13 14:03:09 -07:00
sysctl_net.c