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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
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When the connection monitor timer fires right before
suspend, the following will happen:
timer fires -> monitor_work gets queued
suspend calls ieee80211_sta_quiesce
ieee80211_sta_quiesce:
- deletes timer
- cancels monitor_work synchronously, running it
[note wrong order of these steps]
monitor_work runs, re-arming the timer
later, timer fires while system should be quiesced
This causes a warning:
WARNING: at net/mac80211/util.c:540 ieee80211_can_queue_work+0x35/0x40 [mac80211]()
but is otherwise harmless. I'm not completely sure
this is the scenario Thomas stumbled across, but it
is the only way I can right now see the warning in
a scenario like the one he reported.
Reported-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (47 commits)
forcedeth: fix a few sparse warnings (variable shadowing)
forcedeth: Improve stats counters
forcedeth: remove unneeded stats updates
forcedeth: Acknowledge only interrupts that are being processed
forcedeth: fix race when unloading module
MAINTAINERS/rds: update maintainer
wanrouter: Remove kernel_lock annotations
usbnet: fix oops in usbnet_start_xmit
ixgbe: Fix compile for kernel without CONFIG_PCI_IOV defined
etherh: Add MAINTAINERS entry for etherh
bonding: comparing a u8 with -1 is always false
sky2: fix regression on Yukon Optima
netlink: clarify attribute length check documentation
netlink: validate NLA_MSECS length
i825xx:xscale:8390:freescale: Fix Kconfig dependancies
macvlan: receive multicast with local address
tg3: Update version to 3.121
tg3: Eliminate timer race with reset_task
tg3: Schedule at most one tg3_reset_task run
tg3: Obtain PCI function number from device
...
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Some buggy APs (and even P2P_GO) don't advertise their
basic rates in the association response.
In such case, use the min supported rate as the
basic rate.
Reported-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Only AID values 1-2007 are valid, but some APs have been
found to send random bogus values, in the reported case an
AP that was sending the AID field value 0xffff, an AID of
0x3fff (16383).
There isn't much we can do but disable powersave since
there's no way it can work properly in this case.
Cc: stable@vger.kernel.org
Reported-by: Bill C Riemers <briemers@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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These files are non modular, but need to export symbols using
the macros now living in export.h -- call out the include so
that things won't break when we remove the implicit presence
of module.h from everywhere.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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These files were getting access to these two via the implicit
presence of module.h everywhere. They aren't modules, so they
don't need the full module.h inclusion though.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (63 commits)
PM / Clocks: Remove redundant NULL checks before kfree()
PM / Documentation: Update docs about suspend and CPU hotplug
ACPI / PM: Add Sony VGN-FW21E to nonvs blacklist.
ARM: mach-shmobile: sh7372 A4R support (v4)
ARM: mach-shmobile: sh7372 A3SP support (v4)
PM / Sleep: Mark devices involved in wakeup signaling during suspend
PM / Hibernate: Improve performance of LZO/plain hibernation, checksum image
PM / Hibernate: Do not initialize static and extern variables to 0
PM / Freezer: Make fake_signal_wake_up() wake TASK_KILLABLE tasks too
PM / Hibernate: Add resumedelay kernel param in addition to resumewait
MAINTAINERS: Update linux-pm list address
PM / ACPI: Blacklist Vaio VGN-FW520F machine known to require acpi_sleep=nonvs
PM / ACPI: Blacklist Sony Vaio known to require acpi_sleep=nonvs
PM / Hibernate: Add resumewait param to support MMC-like devices as resume file
PM / Hibernate: Fix typo in a kerneldoc comment
PM / Hibernate: Freeze kernel threads after preallocating memory
PM: Update the policy on default wakeup settings
PM / VT: Cleanup #if defined uglyness and fix compile error
PM / Suspend: Off by one in pm_suspend()
PM / Hibernate: Include storage keys in hibernation image on s390
...
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Recently mac80211 was changed to use nullfunc instead of probe
request for connection monitoring for tx ack status reporting
hardwares. Sometimes in congested network, STA got disconnected
quickly after the association. It was observered that the rate
control was not adopted to environment due to minimal transmission.
As the nullfunc are used for monitoring purpose, these frames should
not be sacrificed for rate control updation. So it is better to send
the monitoring null func frames at minimum rate that could help to
retain the connection.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The flaglock in struct sta_info has long been
something that I wanted to get rid of, this
finally does the conversion to atomic bitops.
The conversion itself is straight-forward in
most places, a few things needed to change a
bit since we can no longer use multiple bits
at the same time.
On x86-64, this is a fairly significant code
size reduction:
text data bss dec hex
427861 23648 1008 452517 6e7a5 before
425383 23648 976 450007 6ddd7 after
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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When adding a TDLS peer STA, mark it with a new flag in both nl80211 and
mac80211. Before adding a peer, make sure the wiphy supports TDLS and
our operating mode is appropriate (managed).
In addition, make sure all peers are removed on disassociation.
A TDLS peer is first added just before link setup is initiated. In later
setup stages we have more info about peer supported rates, capabilities,
etc. This info is reported via nl80211_set_station().
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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save and configure tx param per sdata, rather than
per hardware.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Whenever the scan request or tx_mgmt is requesting not to
use CCK rate for managemet frames through
NL80211_ATTR_TX_NO_CCK_RATE attribute, then mac80211 should
select appropriate least non-CCK rate. This could help to
send P2P probes and P2P action frames at non 11b rates
without diabling 11b rates globally.
Cc: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The commit "mac80211: stop tx before doing hw config and
rate update" stops the tx queue and call drv_flush so frequently
whenever a beacon got received with 11n htcap. This leads to
massive "Failed to stop TX DMA" logspam on embedded hw. So the
queue stop and flush should be called if and only if there is a
change in the channel type.
Reported-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The hw.conf.channel value is not updated properly for drivers that
support HW channel switch. Since the switch is done entirely by the
driver and we don't call ieee80211_hw_config(), this value remains
untouched. This patch fixes that by setting the new channel directly in
ieee80211_chswitch_work().
Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The assumption is that during the hw config, transmission was
already stopped by mac80211. Sometimes the AP can be switching
b/w the ht modes due to intolerant or etc where STA is in
the middle of transmission. In such scenario, buffer overflow
was observed at driver side. And also before updating the rate
control, the frames are continued to xmited with older rates.
This patch ensures that the frames are always xmitted with
updated rates and avoid buffer overflow.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Removing unnecessary messages saves code and text.
Site specific OOM messages are duplications of a generic MM
out of memory message and aren't really useful, so just
delete them.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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When associating to an AP, the station might miss the first EAP
packet that the AP sends due to a race condition between the association
success procedure and the rx flow in mac80211.
In such cases, the packet might fall in ieee80211_rx_h_check due to
the fact that the relevant rx->sta wasn't allocated yet.
Allocation of the relevant station info struct before actually
sending the association request and setting it with a new
dummy_sta flag solve this problem.
The station will accept only EAP packets from the AP while it
is in the pre-association/dummy state.
This dummy station entry is not seen by normal sta_info_get()
calls, only by sta_info_get_bss_rx().
The driver is not notified for the first insertion of the
dummy station. The driver is notified only after the association
is complete and the dummy flag is removed from the station entry.
That way, all the rest of the code flow should be untouched by
this change.
Signed-off-by: Guy Eilam <guy@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The PM QoS implementation files are better named
kernel/power/qos.c and include/linux/pm_qos.h.
The PM QoS support is compiled under the CONFIG_PM option.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Acked-by: markgross <markgross@thegnar.org>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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In P2P client mode, the GO (AP) to connect to might
have periods of time where it is not available due
to powersave. To allow the driver to sync with it
and send frames to the GO only when it is available
add a new callback tx_sync (and the corresponding
finish_tx_sync). These callbacks can sleep unlike
the actual TX.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Scanning currently uses the TX rate mask to
restrict the rate set, which is bogus. Make
it use the new set of rates from userspace.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Add tx_conf array to save the current tx queues
configuration, and reconfig it on resume (ieee80211_reconfig).
On resume, the driver is being reconfigured. Without
reconfiguring the tx queues as well, the driver might
configure the device to use wrong ac params (e.g. ps-poll
instead of uapsd).
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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In WoWLAN, devices may use crypto keys for TX/RX
and could also implement GTK rekeying. If the
driver isn't able to retrieve replay counters and
similar information from the device upon resume,
or if the device isn't responsive due to platform
issues, it isn't safe to keep the connection up
as GTK rekey messages from during the sleep time
could be replayed against it.
The only protection against that is disconnecting
from the AP. Modifying mac80211 to do that while
it is resuming would be very complex and invasive
in the case that the driver requires a reconfig,
so do it after it has resumed completely. In that
case, however, packets might be replayed since it
can then only happen after TX/RX are up again, so
mark keys for interfaces that need to disconnect
as "tainted" and drop all packets that are sent
or received with those keys.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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mac80211 maintains a running average of the RSSI when a STA
is associated to an AP. Report threshold events to any driver
that has registered callbacks for getting RSSI measurements.
Implement callbacks in mac80211 so that driver can set thresholds.
Add callbacks in mac80211 which is invoked when an RSSI threshold
event occurs.
mac80211: add tracing to rssi_reports api and remove extraneous fn argument
mac80211: scale up rssi thresholds from driver by 16 before storing
Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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A panic was observed when the device is failed to resume properly,
and there are no running interfaces. ieee80211_reconfig tries
to restart STA timers on unassociated state.
Cc: stable@kernel.org
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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mlme.c
l.757 ieee80211_dynamic_ps_enable_work(11)
variable dereferenced before check 'sdata'
mesh_pathtbl.c
l.650 mesh_path_del(20) double lock 'bottom_half'
l.663 mesh_path_del(33) double unlock 'bottom_half'
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Use the tx_frames_pending() driver callback to determine if Tx frames are
pending for its internal queues. If so postpone the dynamic PS timeout
to avoid interrupting Tx traffic.
The commit e8306f989483e4b97a8b37dd268de6c8c6f35e75 enabled this
behavior for drivers with IEEE80211_HW_PS_NULLFUNC_STACK. We enable this
for all drivers supporting dynamic PS.
This patch helps improve performance in noisy environments.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Do not send DS Channel parameter for directed probe requests
in order to maximize the chance that we get a response. Some
badly-behaved APs don't respond when this parameter is included.
Signed-off-by: Paul Stewart <pstew@chromium.org>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Trigger connection monitor on resume from suspend. Since we
have been sleeping, there is reason to suspect that we might
not still be associated. The speed of detecting loss of
{connection,authentication} is worth the cost of the small
additional traffic at resume.
Signed-off-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Add ieee80211_get_operstate() function to get the operstate
of the netdevice.
This is needed for drivers that need to know when the interface
is IF_OPER_UP (e.g. wl12xx), and block notifiers can't be used
(e.g. because the interface is already IF_OPER_UP, like after
resuming from suspend)
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This reverts commit 1d38c16ce4156f63b45abbd09dd28ca2ef5172b4.
The mac80211 maintainer raised complaints about abuse of the CSA stop
reason, and about whether this patch actually serves its intended
purpose at all.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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local->ps_data wasn't cleared on disassociation, which
(in some corner cases) caused reconnections to enter
psm before association completed.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Stop tx queues before updating rate control to ensure
proper rate selection. Otherwise packets can be transmitted
in 40 Mhz whereas hw is configured in HT20.
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Whenever the driver's queue depth reaches the max, the queues are
stopped by the driver till the driver can accept the frames.
At the mean time dynamic_ps_timer can be expired due to not
receiving packet from upper layer which could restart the transmission
at the end of ps work. Due to the mismatch with driver state,
mac80211 is unneccesarity buffering all the frames till the driver
wakes up the queue.
Check whether there is no transmit or the tx queues were stopped by some
reasons. If any of the queue was stopped, the postpond ps timer and
do not restart netif_tx.
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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netif_tx_start_all_queues is used to allow the upper layer
to transmit frames but it does not restart transmission.
To restart the trasmission use netif_tx_wake_all_queues.
Not doing so, sometimes stalls the transmission and the
application has to be restarted to proceed further.
This issue was originally found while sending udp traffic
in higer bandwidth in open environment without bgscan.
Cc: stable@kernel.org
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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In a highly noisy environment, the tx rate of the driver drops and
the application slows down since it has not yet received ACKs for
the frames already queued in the hardware. Since this ACK may take
more than 100ms, stopping the dev queues for entering PS at this
stage breaks applications, WMM test cases in my testing.
If there are frames already pending in the tx queue, postponing the
PS logic helps to avoid redundant queue stops. When power save is
enabled by default and in a noisy environment, this API certainly
helps in improving the average throughput.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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If dynamic_ps is disabled, enabling power save before the 4-way
handshake completes may delay the station from being authorized to
send/receive traffic, i.e. increase roaming times. It also may result in
a failed 4-way handshake depending on the AP's timing requirements and
beacon interval, and the station's listen interval.
To fix this, prevent power save from being enabled while the station
isn't authorized and recalculate power save whenever the station's
authorized state changes.
Signed-off-by: Jason Young <a.young.jason@gmail.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Is still possible to schedule conn_mon_timer after disassociate from
ieee80211_sta_tx_notify() and ieee80211_offchannel_ps_disable().
Move disassociate check to ieee80211_sta_reset_conn_monitor() to cover
all these cases, and add unlikely since in most the time we call
ieee80211_sta_reset_conn_monitor() when associated.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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There is a race on sending a data frame before the tx completion
of nullfunc frame for enabling power save. As the data quickly
follows the nullfunc frame, the AP thinks that the station is out
of power save and continues to send the frames. Whereas in the
station, the nullfunc ack will be processed after the tx completion
of data frame and mac80211 goes to powersave. Thus the power
save state mismatch between the station and the AP causes some
data loss and some applications fail because of that. This patch
fixes this issue.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Conflicts:
drivers/bluetooth/ath3k.c
drivers/bluetooth/btusb.c
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Low level driver could pass rx frames to us after disassociate, what
can lead to run conn_mon_timer by ieee80211_sta_rx_notify(). That
is obviously wrong, but nothing happens until we unload modules and
resources are used after free. If kernel debugging is enabled following
warning could be observed:
WARNING: at lib/debugobjects.c:259 debug_print_object+0x65/0x70()
Hardware name: HP xw8600 Workstation
ODEBUG: free active (active state 0) object type: timer_list
Modules linked in: iwlagn(-) iwlcore mac80211 cfg80211 aes_x86_64 aes_generic fuse cpufreq_ondemand acpi_cpufreq freq_table mperf xt_physdev ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 ext3 jbd dm_mirror dm_region_hash dm_log dm_mod uinput hp_wmi sparse_keymap sg wmi arc4 microcode serio_raw ecb tg3 shpchp rfkill ext4 mbcache jbd2 sr_mod cdrom sd_mod crc_t10dif firewire_ohci firewire_core crc_itu_t mptsas mptscsih mptbase scsi_transport_sas ahci libahci pata_acpi ata_generic ata_piix floppy nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: cfg80211]
Pid: 13827, comm: rmmod Tainted: G W 2.6.38-rc4-wl+ #22
Call Trace:
[<ffffffff810649cf>] ? warn_slowpath_common+0x7f/0xc0
[<ffffffff81064ac6>] ? warn_slowpath_fmt+0x46/0x50
[<ffffffff81226fc5>] ? debug_print_object+0x65/0x70
[<ffffffff81227625>] ? debug_check_no_obj_freed+0x125/0x210
[<ffffffff8109ebd7>] ? debug_check_no_locks_freed+0xf7/0x170
[<ffffffff81156092>] ? kfree+0xc2/0x2f0
[<ffffffff813ec5c5>] ? netdev_release+0x45/0x60
[<ffffffff812f1067>] ? device_release+0x27/0xa0
[<ffffffff81216ddd>] ? kobject_release+0x8d/0x1a0
[<ffffffff81216d50>] ? kobject_release+0x0/0x1a0
[<ffffffff812183b7>] ? kref_put+0x37/0x70
[<ffffffff81216c57>] ? kobject_put+0x27/0x60
[<ffffffff813d5d1b>] ? netdev_run_todo+0x1ab/0x270
[<ffffffff813e771e>] ? rtnl_unlock+0xe/0x10
[<ffffffffa0581188>] ? ieee80211_unregister_hw+0x58/0x120 [mac80211]
[<ffffffffa0377ed7>] ? iwl_pci_remove+0xdb/0x22a [iwlagn]
[<ffffffff8123cde2>] ? pci_device_remove+0x52/0x120
[<ffffffff812f5205>] ? __device_release_driver+0x75/0xe0
[<ffffffff812f5348>] ? driver_detach+0xd8/0xe0
[<ffffffff812f4111>] ? bus_remove_driver+0x91/0x100
[<ffffffff812f5b62>] ? driver_unregister+0x62/0xa0
[<ffffffff8123d194>] ? pci_unregister_driver+0x44/0xa0
[<ffffffffa0377df5>] ? iwl_exit+0x15/0x1c [iwlagn]
[<ffffffff810ab492>] ? sys_delete_module+0x1a2/0x270
[<ffffffff81498889>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[<ffffffff8100bf42>] ? system_call_fastpath+0x16/0x1b
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Some were indirectly set to NO_HT (zero), but I think
it's better to explicitly set it in case the enum ever
changes. In cfg.c, it seems the channel-type was just
ignored (and thus always set to NO_HT).
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This allows users to tune the connection-loss algorithms
to be more or less lenient. In particular, larger
null-func retries helps when using lots of virtual
stations on a loaded network.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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I have a netgear WNDR3700 that appears to have an off-by-four
bug in how it fills out the hti->control_chan (I configure the
AP to channel 11, it reports 15 as control_chan).
Poke a message into the kernel logs to give users a
clue as to why they are not getting the expected
channel-type or rate.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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PS should not be enabled if an infra AP vif exists in
the interface list. So while recalculating PS,
AP vif type should be taken into account.
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Extend channel to frequency mapping for 802.11j Japan 4.9GHz band, according to
IEEE802.11 section 17.3.8.3.2 and Annex J. Because there are now overlapping
channel numbers in the 2GHz and 5GHz band we can't map from channel to
frequency without knowing the band. This is no problem as in most contexts we
know the band. In places where we don't know the band (and WEXT compatibility)
we assume the 2GHz band for channels below 14.
This patch does not implement all channel to frequency mappings defined in
802.11, it's just an extension for 802.11j 20MHz channels. 5MHz and 10MHz
channels as well as 802.11y channels have been omitted.
The following drivers have been updated to reflect the API changes:
iwl-3945, iwl-agn, iwmc3200wifi, libertas, mwl8k, rt2x00, wl1251, wl12xx.
The drivers have been compile-tested only.
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: Brian Prodoehl <bprodoehl@gmail.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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net/mac80211/mlme.c: In function 'ieee80211_sta_work':
net/mac80211/mlme.c:1981: warning: too many arguments for format
Introduced by commit 04ac3c0ee2c773c321ec472d892635a20556f34d
("mac80211: speed up AP probing using nullfunc frames").
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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