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Sergey Matyukevich ca5b9d63e9 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from scan cache, so its output will contain outdated channel info.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 06:46:14 -07:00
..
6lowpan
9p 9p: do not trust pdu content for stat item size 2019-04-20 09:16:00 +02:00
802
8021q vlan: disable SIOCSHWTSTAMP in container 2019-05-16 19:41:30 +02:00
appletalk appletalk: Fix use-after-free in atalk_proc_exit 2019-04-20 09:16:05 +02:00
atm net: atm: Fix potential Spectre v1 vulnerabilities 2019-04-27 09:36:30 +02:00
ax25 ax25: fix possible use-after-free 2019-02-23 09:07:27 +01:00
batman-adv batman-adv: mcast: fix multicast tt/tvlv worker locking 2019-05-31 06:46:05 -07:00
bluetooth Bluetooth: Ignore CC events not matching the last HCI command 2019-05-31 06:46:09 -07:00
bpf bpf/test_run: support cgroup local storage 2018-08-03 00:47:32 +02:00
bpfilter net: bpfilter: use get_pid_task instead of pid_task 2018-10-17 22:03:40 -07:00
bridge bridge: Fix error path for kobject_init_and_add() 2019-05-16 19:41:29 +02:00
caif Revert "net: simplify sock_poll_wait" 2018-11-04 14:50:51 +01:00
can can: bcm: check timer values before ktime conversion 2019-01-31 08:14:39 +01:00
ceph libceph: wait for latest osdmap in ceph_monc_blacklist_add() 2019-03-27 14:14:39 +09:00
core bpf: add bpf_jit_limit knob to restrict unpriv allocations 2019-05-31 06:46:03 -07:00
dcb net: dcb: Add priority-to-DSCP map getters 2018-07-27 13:17:50 -07:00
dccp dccp: do not use ipv6 header for ipv4 flow 2019-04-03 06:26:15 +02:00
decnet decnet: fix using plain integer as NULL warning 2018-08-09 14:11:24 -07:00
dns_resolver net: remove blank lines at end of file 2018-07-24 14:10:43 -07:00
dsa net: dsa: Fix error cleanup path in dsa_init_module 2019-05-16 19:41:29 +02:00
ethernet
hsr net/hsr: fix possible crash in add_timer() 2019-03-19 13:12:38 +01:00
ieee802154 ieee802154: lowpan_header_create check must check daddr 2019-01-09 17:38:31 +01:00
ife
ipv4 xfrm4: Fix uninitialized memory read in _decode_session4 2019-05-25 18:23:41 +02:00
ipv6 xfrm: clean up xfrm protocol checks 2019-05-25 18:23:41 +02:00
iucv Revert "net: simplify sock_poll_wait" 2018-11-04 14:50:51 +01:00
kcm kcm: switch order of device registration to fix a crash 2019-04-17 08:38:40 +02:00
key xfrm: clean up xfrm protocol checks 2019-05-25 18:23:41 +02:00
l2tp l2tp: use rcu_dereference_sk_user_data() in l2tp_udp_encap_recv() 2019-05-05 14:42:37 +02:00
l3mdev
lapb
llc llc: do not use sk_eat_skb() 2018-12-01 09:37:27 +01:00
mac80211 mac80211/cfg80211: update bss channel on channel switch 2019-05-31 06:46:14 -07:00
mac802154 net: mac802154: tx: expand tailroom if necessary 2018-08-06 11:21:37 +02:00
mpls mpls: Return error for RTA_GATEWAY attribute 2019-03-10 07:17:19 +01:00
ncsi net/ncsi: Fixup .dumpit message flags and ID check in Netlink handler 2018-08-22 21:39:08 -07:00
netfilter netfilter: nf_tables: add missing ->release_ops() in error path of newrule() 2019-05-16 19:41:26 +02:00
netlabel netlabel: fix out-of-bounds memory accesses 2019-03-10 07:17:18 +01:00
netlink genetlink: Fix a memory leak on error path 2019-04-03 06:26:15 +02:00
netrom net: netrom: Fix error cleanup path of nr_proto_init 2019-05-02 09:58:57 +02:00
nfc NFC: nci: Add some bounds checking in nci_hci_cmd_received() 2019-05-16 19:41:27 +02:00
nsh
openvswitch openvswitch: fix flow actions reallocation 2019-04-17 08:38:41 +02:00
packet packet: Fix error path in packet_init 2019-05-16 19:41:30 +02:00
phonet phonet: fix building with clang 2019-03-23 20:09:51 +01:00
psample
qrtr
rds net: rds: exchange of 8K and 1M pool 2019-05-02 09:59:00 +02:00
rfkill Here are quite a large number of fixes, notably: 2018-09-03 22:12:02 -07:00
rose net/rose: fix unbound loop in rose_loopback_timer() 2019-05-02 09:59:00 +02:00
rxrpc rxrpc: Fix net namespace cleanup 2019-05-05 14:42:38 +02:00
sched sch_cake: Simplify logic in cake_select_tin() 2019-04-27 09:36:32 +02:00
sctp sctp: avoid running the sctp state machine recursively 2019-05-05 14:42:39 +02:00
smc net/smc: fix smc_poll in SMC_INIT state 2019-03-19 13:12:41 +01:00
strparser net: strparser: partially revert "strparser: Call skb_unclone conditionally" 2019-05-16 19:41:27 +02:00
sunrpc sunrpc: don't mark uninitialised items as VALID. 2019-05-02 09:58:55 +02:00
switchdev
tipc tipc: fix modprobe tipc failed after switch order of device registration 2019-05-25 18:23:22 +02:00
tls net/tls: fix the IV leaks 2019-05-16 19:41:27 +02:00
unix missing barriers in some of unix_sock ->addr and ->path accesses 2019-03-19 13:12:41 +01:00
vmw_vsock vsock/virtio: Initialize core virtio vsock before registering the driver 2019-05-25 18:23:22 +02:00
wimax wimax: remove blank lines at EOF 2018-07-24 14:10:42 -07:00
wireless mac80211/cfg80211: update bss channel on channel switch 2019-05-31 06:46:14 -07:00
x25 net/x25: fix a race in x25_bind() 2019-03-19 13:12:40 +01:00
xdp xsk: fix umem memory leak on cleanup 2019-05-04 09:20:12 +02:00
xfrm xfrm: Honor original L3 slave device in xfrmi policy lookup 2019-05-25 18:23:41 +02:00
compat.c sock: Make sock->sk_stamp thread-safe 2019-01-09 17:38:33 +01:00
Kconfig net: remove blank lines at end of file 2018-07-24 14:10:43 -07:00
Makefile
socket.c net: socket: set sock->sk to NULL after calling proto_ops::release() 2019-03-10 07:17:18 +01:00
sysctl_net.c