Johannes Berg 35c347ac53 mac80211: lock rate control ... Both minstrel (reported by Sven Eckelmann) and the iwlwifi rate control aren't properly taking concurrency into account. It's likely that the same is true for other rate control algorithms. In the case of minstrel this manifests itself in crashes when an update and other data access are run concurrently, for example when the stations change bandwidth or similar. In iwlwifi, this can cause firmware crashes. Since fixing all rate control algorithms will be very difficult, just provide locking for invocations. This protects the internal data structures the algorithms maintain. I've manipulated hostapd to test this, by having it change its advertised bandwidth roughly ever 150ms. At the same time, I'm running a flood ping between the client and the AP, which causes this race of update vs. get_rate/status to easily happen on the client. With this change, the system survives this test. Reported-by: Sven Eckelmann <sven@open-mesh.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>		2015-04-20 13:05:29 +02:00
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6lowpan	6lowpan: nhc: add other known rfc6282 compressions	2015-02-14 23:08:44 +01:00
9p	net/9p: remove (now-)unused helpers	2015-04-11 22:28:29 -04:00
802	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
8021q	vlan: implement ndo_get_iflink	2015-04-02 14:05:00 -04:00
appletalk	appletalk: Use eth_<foo>_addr instead of memset	2015-03-03 17:01:37 -05:00
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-04-15 09:00:47 -07:00
ax25	ax25: Fix the build when CONFIG_INET is disabled	2015-03-05 13:17:39 -05:00
batman-adv	dev: introduce dev_get_iflink()	2015-04-02 14:04:59 -04:00
bluetooth	Bluetooth: Read LE remote features during connection establishment	2015-04-09 08:36:54 +03:00
bridge	netfilter: nf_tables: switch registers to 32 bit addressing	2015-04-13 17:17:29 +02:00
caif	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-20 18:51:09 -04:00
can	can: introduce new raw socket option to join the given CAN filters	2015-04-01 11:28:22 +02:00
ceph	Revert "libceph: use memalloc flags for net IO"	2015-04-07 19:08:35 +03:00
core	net: remove unused 'dev' argument from netif_needs_gso()	2015-04-17 13:29:41 -04:00
dcb	net/dcb: Add IEEE QCN attribute	2015-03-06 21:50:02 -05:00
dccp	tcp/dccp: get rid of central timewait timer	2015-04-13 16:40:05 -04:00
decnet	netfilter: Pass socket pointer down through okfn().	2015-04-07 15:25:55 -04:00
dns_resolver	Merge commit 'v3.16' into next	2014-10-01 00:44:04 +10:00
dsa	net: dsa: use DEVICE_ATTR_RW to declare temp1_max	2015-04-17 15:58:37 -04:00
ethernet	ethernet: Use eth_<foo>_addr instead of memset	2015-03-03 17:01:38 -05:00
hsr	net/hsr: Fix NULL pointer dereference and refcnt bugs when deleting a HSR interface.	2015-03-01 13:40:23 -05:00
ieee802154	ieee802154: don't export static symbol	2015-03-14 17:11:31 +01:00
ipv4	inet_diag: fix access to tcp cc information	2015-04-17 13:28:31 -04:00
ipv6	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2015-04-14 18:51:19 -04:00
ipx	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
irda	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-09 23:38:02 -04:00
iucv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-02 16:16:53 -04:00
key	xfrm: simplify xfrm_address_t use	2015-03-31 13:58:35 -04:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-06 22:34:15 -04:00
lapb	lapb: move EXPORT_SYMBOL after functions.	2014-10-24 15:51:42 -04:00
llc	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
mac80211	mac80211: lock rate control	2015-04-20 13:05:29 +02:00
mac802154	mac802154: cleanup concurrent check	2015-03-27 19:18:50 +01:00
mpls	mpls: In mpls_egress verify the packet length.	2015-03-12 23:05:04 -04:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2015-04-14 18:51:19 -04:00
netlabel	netlink: implement nla_put_in_addr and nla_put_in6_addr	2015-03-31 13:58:35 -04:00
netlink	rhashtable: provide len to obj_hashfn	2015-03-25 17:18:33 +01:00
netrom	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
nfc	nfc: Fix portid type in urelease_work	2015-04-13 16:35:16 -04:00
openvswitch	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-04-15 09:00:47 -07:00
packet	af_packet: pass checksum validation status to the user	2015-03-23 22:01:28 -04:00
phonet	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
rds	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-14 15:44:14 -04:00
rfkill	Last round of updates for net-next:	2015-02-04 14:57:45 -08:00
rose	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
rxrpc	new helper: msg_data_left()	2015-04-11 15:53:35 -04:00
sched	act_mirred: Fix bogus header when redirecting from VLAN	2015-04-17 13:29:28 -04:00
sctp	sctp: avoid to repeatedly declare external variables	2015-03-25 11:40:16 -04:00
sunrpc	lib/string_helpers.c: change semantics of string_escape_mem	2015-04-15 16:35:24 -07:00
switchdev	switchdev: fix stp update API to work with layered netdevices	2015-03-23 16:44:56 -04:00
tipc	udp_tunnel: Pass UDP socket down through udp_tunnel{, 6}_xmit_skb().	2015-04-07 15:29:08 -04:00
unix	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
vmw_vsock	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
wimax	wimax: convert printk to pr_foo()	2014-10-07 20:28:44 -04:00
wireless	cfg80211: don't allow disabling WEXT if it's required	2015-04-08 09:19:29 +02:00
x25	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-14 15:44:14 -04:00
Kconfig	kconfig: use bool instead of boolean for type definition attributes	2015-01-07 13:08:04 +01:00
Makefile	mpls: Refactor how the mpls module is built	2015-03-04 00:26:06 -05:00
compat.c	net: switch importing msghdr from userland to {compat_,}import_iovec()	2015-04-09 00:02:26 -04:00
socket.c	make new_sync_{read,write}() static	2015-04-11 22:29:40 -04:00
sysctl_net.c	…