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5dc8cdce1d
linux/net
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Sergey Matyukevich 5dc8cdce1d mac80211/cfg80211: update bss channel on channel switch 
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from scan cache, so its output will contain outdated channel info.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>
2019-04-26 13:02:11 +02:00
..
6lowpan
9p 9p/net: fix memory leak in p9_client_create 2019-03-13 11:50:04 +01:00
802
8021q vlan: conditional inclusion of FCoE hooks to match netdevice.h and bnx2x 2019-04-04 17:18:34 -07:00
appletalk appletalk: Fix potential NULL pointer dereference in unregister_snap_client 2019-03-15 11:25:48 -07:00
atm net: atm: Add another IS_ENABLED(CONFIG_COMPAT) in atm_dev_ioctl 2019-03-07 10:14:50 -08:00
ax25
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-05 14:14:19 -07:00
bluetooth Bluetooth: Add quirk for reading BD_ADDR from fwnode property 2019-02-26 10:08:26 +01:00
bpf bpf: fix warning about using plain integer as NULL 2019-03-08 21:17:07 +01:00
bpfilter bpfilter: re-add header search paths to tools include to fix build error 2019-02-23 13:34:40 -08:00
bridge rhashtable: use bit_spin_locks to protect hash bucket. 2019-04-07 19:12:12 -07:00
caif net: caif: use skb helpers instead of open-coding them 2019-02-17 11:01:17 -08:00
can
ceph libceph: fix breakage caused by multipage bvecs 2019-03-25 22:28:07 +01:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-05 14:14:19 -07:00
dcb
dccp dccp: Fix memleak in __feat_register_sp 2019-04-01 18:15:10 -07:00
decnet net: use rcu_dereference_protected to fetch sk_dst_cache in sk_destruct 2019-04-01 18:10:51 -07:00
dns_resolver
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-05 14:14:19 -07:00
ethernet net/ethernet: Add parse_protocol header_ops support 2019-02-22 12:55:31 -08:00
hsr net: hsr: Fix node prune function for forget time expiry 2019-04-06 18:32:21 -07:00
ieee802154 genetlink: make policy common to family 2019-03-22 10:38:23 -04:00
ife
ipv4 rhashtable: use bit_spin_locks to protect hash bucket. 2019-04-07 19:12:12 -07:00
ipv6 rhashtable: use bit_spin_locks to protect hash bucket. 2019-04-07 19:12:12 -07:00
iucv
kcm kcm: switch order of device registration to fix a crash 2019-04-01 14:59:20 -07:00
key af_key: unconditionally clone on broadcast 2019-02-12 10:36:42 +01:00
l2tp genetlink: make policy common to family 2019-03-22 10:38:23 -04:00
l3mdev
lapb
llc
mac80211 mac80211/cfg80211: update bss channel on channel switch 2019-04-26 13:02:11 +02:00
mac802154
mpls ipv6: Move ipv6 stubs to a separate header file 2019-03-29 10:53:45 -07:00
ncsi genetlink: make policy common to family 2019-03-22 10:38:23 -04:00
netfilter rhashtable: use bit_spin_locks to protect hash bucket. 2019-04-07 19:12:12 -07:00
netlabel genetlink: make policy common to family 2019-03-22 10:38:23 -04:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-27 17:37:58 -07:00
netrom
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-27 17:37:58 -07:00
nsh
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-05 14:14:19 -07:00
packet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-27 17:37:58 -07:00
phonet phonet: fix building with clang 2019-02-21 16:23:56 -08:00
psample
qrtr mm: replace all open encodings for NUMA_NO_NODE 2019-03-05 21:07:14 -08:00
rds net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock(). 2019-03-28 17:17:18 -07:00
rfkill
rose net: rose: fix a possible stack overflow 2019-03-18 16:53:22 -07:00
rxrpc rxrpc: Mark expected switch fall-through 2019-04-03 21:37:58 -07:00
sched net: sched: flower: insert filter to ht before offloading it to hw 2019-04-07 19:33:07 -07:00
sctp sctp: initialize _pad of sockaddr_in before copying to user memory 2019-04-01 18:08:19 -07:00
smc genetlink: make policy common to family 2019-03-22 10:38:23 -04:00
strparser net: strparser: fix a missing check for create_singlethread_workqueue 2019-03-15 12:51:56 -07:00
sunrpc SUNRPC: fix uninitialized variable warning 2019-03-26 13:04:32 -07:00
switchdev switchdev: Remove unused transaction item queue 2019-03-01 21:35:19 -08:00
tipc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-05 14:14:19 -07:00
tls Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-05 14:14:19 -07:00
unix io_uring-2019-03-06 2019-03-08 14:48:40 -08:00
vmw_vsock vsock/virtio: fix kernel panic from virtio_transport_reset_no_sock 2019-03-08 15:15:44 -08:00
wimax genetlink: make policy common to family 2019-03-22 10:38:23 -04:00
wireless mac80211/cfg80211: update bss channel on channel switch 2019-04-26 13:02:11 +02:00
x25 net/x25: reset state in x25_connect() 2019-03-11 15:40:14 -07:00
xdp xsk: fix umem memory leak on cleanup 2019-03-16 01:27:51 +01:00
xfrm net: dev: rename queue selection helpers. 2019-03-20 11:18:54 -07:00
compat.c Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-05 14:08:26 -08:00
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: add documentation to socket.c 2019-03-15 15:29:47 -07:00
sysctl_net.c