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45daaa1318
linux/net
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Ilan Peer 45daaa1318 mac80211: Properly WARN on HW scan before restart 
The following race was possible:

1. The device driver requests HW restart.
2. A scan is requested from user space and is propagated
   to the driver. During this flow HW_SCANNING flag is set.
3. The thread that handles the HW restart is scheduled,
   and before starting the actual reconfiguration it
   checks that HW_SCANNING is not set. The flow does so
   without acquiring any lock, and thus the WARN fires.

Fix this by checking that HW_SCANNING is on only after RTNL is
acquired, i.e., user space scan request handling is no longer
in transit.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.8238ab3e19ab.I2693c581c70251472b4f9089e37e06fb2c18268f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-06-23 11:29:14 +02:00
..
6lowpan 6lowpan: Fix some typos in nhc_udp.c 2021-03-24 17:52:11 -07:00
9p 9p/trans_virtio: Fix spelling mistakes 2021-06-02 14:01:55 -07:00
802
8021q net: vlan: pass thru all GSO_SOFTWARE in hw_enc_features 2021-06-18 11:58:03 -07:00
appletalk Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
atm atm: Use list_for_each_entry() to simplify code in resources.c 2021-06-10 14:08:09 -07:00
ax25 net/ax25: Delete obsolete TODO file 2021-03-30 16:54:50 -07:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
bpf bpf: Prepare bpf syscall to be used from kernel and user space. 2021-05-19 00:33:40 +02:00
bpfilter
bridge bridge: cfm: remove redundant return 2021-06-22 10:35:15 -07:00
caif net: caif: modify the label out_err to out 2021-06-18 12:07:09 -07:00
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
ceph libceph: Fix spelling mistakes 2021-06-03 13:24:23 -07:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
dcb net: dcb: Return the correct errno code 2021-06-01 17:01:33 -07:00
dccp dccp: tfrc: fix doc warnings in tfrc_equation.c 2021-06-10 14:08:49 -07:00
decnet decnet: Fix spelling mistakes 2021-06-02 14:01:55 -07:00
dns_resolver
dsa net: dsa: remove cross-chip support from the MRP notifiers 2021-06-21 12:50:20 -07:00
ethernet of: net: pass the dst buffer to of_get_mac_address() 2021-04-13 14:35:02 -07:00
ethtool ethtool: Validate module EEPROM offset as part of policy 2021-06-22 10:40:54 -07:00
hsr net: hsr: don't check sequence number if tag removal is offloaded 2021-06-16 12:13:01 -07:00
ieee802154 ieee802154: fix error return code in ieee802154_llsec_getparams() 2021-06-03 10:59:49 +02:00
ife
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
iucv net/af_iucv: clean up some forward declarations 2021-06-12 13:06:33 -07:00
kcm revert "net: kcm: fix memory leak in kcm_sendmsg" 2021-06-07 13:34:37 -07:00
key
l2tp l2tp: Fix spelling mistakes 2021-06-07 14:08:30 -07:00
l3mdev l3mdev: Correct function names in the kerneldoc comments 2021-03-28 17:56:55 -07:00
lapb net: lapb: Use list_for_each_entry() to simplify code in lapb_iface.c 2021-06-08 16:31:25 -07:00
llc llc2: Remove redundant assignment to rc 2021-04-27 14:16:14 -07:00
mac80211 mac80211: Properly WARN on HW scan before restart 2021-06-23 11:29:14 +02:00
mac802154 net: mac802154: Fix general protection fault 2021-04-06 22:42:16 +02:00
mpls mpls: Remove redundant assignment to err 2021-04-27 14:17:00 -07:00
mptcp mptcp: refine mptcp_cleanup_rbuf 2021-06-22 14:36:01 -07:00
ncsi net/ncsi: Fix spelling mistakes 2021-06-07 14:08:30 -07:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
netlabel netlabel: Fix memory leak in netlbl_mgmt_add_common 2021-06-15 11:19:04 -07:00
netlink netlink: disable IRQs for netlink_lock_table() 2021-05-17 15:31:03 -07:00
netrom net: netrom: nr_in: Remove redundant assignment to ns 2021-04-28 13:59:08 -07:00
nfc Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2021-06-07 13:01:52 -07:00
nsh
openvswitch openvswitch: add trace points 2021-06-22 10:47:32 -07:00
packet Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
phonet
psample psample: Add additional metadata attributes 2021-03-14 15:00:43 -07:00
qrtr Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
rfkill Another set of updates, all over the map: 2021-04-20 16:44:04 -07:00
rose net: rose: Fix fall-through warnings for Clang 2021-03-10 12:45:15 -08:00
rxrpc rxrpc: Fix a typo 2021-06-02 14:01:55 -07:00
sched Revert "net/sched: cls_flower: Remove match on n_proto" 2021-06-21 14:46:36 -07:00
sctp sctp: process sctp over udp icmp err on sctp side 2021-06-22 11:28:52 -07:00
smc net/smc: Fix ENODATA tests in smc_nl_get_fback_stats() 2021-06-21 12:16:58 -07:00
strparser
sunrpc xprtrdma: Revert 586a0787ce 2021-05-27 08:46:19 -04:00
switchdev net: bridge: propagate extack through switchdev_port_attr_set 2021-02-14 17:38:11 -08:00
tipc tipc:subscr.c: fix a spelling mistake 2021-06-10 13:48:43 -07:00
tls skbuff: add a parameter to __skb_frag_unref 2021-06-07 14:11:47 -07:00
unix __unix_find_socket_byname(): don't pass hash and type separately 2021-06-21 12:28:49 -07:00
vmw_vsock virtio/vsock: avoid NULL deref in virtio_transport_seqpacket_allow() 2021-06-22 09:49:37 -07:00
wireless nl80211/cfg80211: add BSS color to NDP ranging parameters 2021-06-23 11:29:14 +02:00
x25 net: x25: Use list_for_each_entry() to simplify code in x25_route.c 2021-06-10 14:08:09 -07:00
xdp xdp: Extend xdp_redirect_map with broadcast support 2021-05-26 09:46:16 +02:00
xfrm xfrm: ipcomp: remove unnecessary get_cpu() 2021-04-19 12:49:29 +02:00
compat.c net: Return the correct errno code 2021-06-03 15:13:56 -07:00
devres.c net: devres: Correct a grammatical error 2021-06-11 12:55:28 -07:00
Kconfig bpf, kconfig: Add consolidated menu entry for bpf with core options 2021-05-11 13:56:16 -07:00
Makefile
socket.c net: add pf_family_names[] for protocol family 2021-06-21 14:41:54 -07:00
sysctl_net.c net: Ensure net namespace isolation of sysctls 2021-04-12 13:27:11 -07:00