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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Drivers can now advertise to cfg80211 that they have
multiple MAC addresses reserved for a device, but we
don't currently make use of that in mac80211.
Change that and assign different addresses to new
virtual interfaces (if addresses are available) in
order to make it easier for users to use multiple
virtual interfaces; they no longer need to always
assign a new MAC address manually.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The current software scan implemenation in mac80211 returns to the operating
channel after each scanned channel. However, in some situations (e.g. no
traffic) it would be nicer to scan a few channels in a row to speed up
the scan itself.
Hence, after scanning a channel, check if we have queued up any tx frames and
return to the operating channel in that case.
Unfortunately we don't know if the AP has buffered any frames for us. Hence,
scan only as many channels in a row as the pm_qos latency and the negotiated
listen interval allows us to.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The AR_IMR_S2 register sometimes cannot be read correctly. Instead of a
valid value, 0xdeadbeef is returned. The driver has been observed
writing that value back to AR_IMR_S2 after changing a few bits.
Cache the register value in ah->imrs2_reg and always write chached value
to the register.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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when an IBSS merge happened, the supported rates for the newly added station
were left empty, causing the rate control module to be initialized with only
the basic rates.
also the section of the ibss code which deals with updating supported rates for
an already existing station fails to inform the rate control module about the
new rates. as i don't know how to fix this (minstrel does not have an update
function), i have just added a comment for now.
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch removes the workaround limiting chipset TX power to 12dB, instead
using the value configured by the mac80211.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Disable host TX rate control. The wl1271 firmware is already managing rate
control, so this eliminate unnecessary host processing.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Instead of managing the TX security sequence number as two variables, use
one 64 bit variable. This greatly simplifies the handling of the number.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch simplifies the required block count calculation. Though it
introduces a division operator, it greatly simplifies the formula.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch uses a higher precision timer to synchronize with the firmware
clock. Improved precision is needed as on some platforms a jiffy may be up to
tens of milliseconds, and the required precision is closer to TU's.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch implements looped IRQ handling. In essence, if a new interrupt is
asserted by the FW while the host is processing the previous one, the host
will directly proceed processing the new IRQ without leaving the handling
function.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Don't mask firmware interrupts while processing interrupts. This allows the
interrupt handler looping to work efficiently thus reducing interrupt
processing latency.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch will ack RX frames read from the firmware in one single write,
instead of acking all the frames separately. This will reduce the amount of
required communication per frame.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Remove the annoying and dmesg-flooding WLAN PSM entry/exit traces. Instead,
only output them if PSM traces are enabled.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The queue stopping/waking functionality was broken in a way that could
cause huge latencies in TX transfers and even cause the TX to stall in the
right circumstances. Correct these problems.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch fixes a bug in ad-hoc mode preventing mac80211 from properly
detecting other ad-hoc networks with the same SSID.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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- Fix a TX result overflow problem that was present in the TX path and visible
with at least linksys AP's (probably any AP with high throughput capability.)
- Optimize TX by writing FW trigger for a group of TX frames instead of
each and every frame.
- Slightly optimize the TX path code.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Most probably patch "wl1271: add most of the normal initialization commands
to PLT mode" enabled the RX path in firmware so that now driver received
frames and passed them to mac80211, which warned about them.
Workaround this by not retrieving frames from the hardware, just ignore them.
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Fixed two bugs causing problems when unloding wl1271 module. First was
missing sdio_set_drvdata call from the probe function, second was order
of function calls in the remove function.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Changed access to fw status register to use raw read instead of
translated addressing. On SDIO access by translated addressing was not
working and raw access is working also on SPI.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Added initial implementation of SDIO interfacte to the wl1271 driver.
When selected, this adds new module called "wl1271_sdio".
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Divided wl1271 driver to wl1271 "core" and wl1271_spi modules in preparation
of integration of the SDIO implementation.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Removed wl1271_spi.h header as there's no more need to access functions
declared there outside of wl1271_spi.c. Also made those SPI access
functions static.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Changed IO functions to static inline.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Changed the driver to use if_ops structure to abstract access to the IO
layer (SPI or SDIO).
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Added/moved enable and disable interrupt handling functions.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Moved wl1271 drivers probe, remove etc. functions and structres to
wl1271_spi.c from wl1271_main.c in preparation of implementing SDIO interface.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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P54 devices always generate a full tx_status report
(ACK, PSM, rate control, etc..) for every xmitted frame.
Therefore, I think The driver qualifies for the
REPORTS_TX_ACK_STATUS hardware feature flag.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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ath5k_hw_register_timeout() was duplicated between phy.c and reset.c.
Since it is too big and too much used to be an inline function, move it
away from the ath5k.h header into reset.c. Remove _ATH5K_RESET and
_ATH5K_PHY defines.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Adjust formatting of the affected lines to satisfy checkpatch.pl.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Remove all unnecessary function declarations from ath5k.h. Comment out
unused functions. Remove ath5k_hw_get_tsf32(), which is too trivial to
be commented out. Make functions static if suggested by sparse. Make
ath5k_pm_ops static.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The noise value as is won't be used, isn't
filled by most drivers and doesn't really
make a whole lot of sense on a per packet
basis -- proper cfg80211 survey support in
mac80211 will need to be different.
Mark the struct member as deprecated so it
will be removed from drivers.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Export rt2x00soc_probe from rt2x00soc as it is used in rt2800pci.
Otherwise loading rt2800pci gives "rt2800pci: Unknown symbol
rt2x00soc_probe".
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Handling HT configuration changes involved setting the channel
with the new HT parameters and then issuing a rate_update()
notification to the driver.
This behavior changed after the off-channel changes. Now, the channel
is not updated with the new HT params in enable_ht() - instead, it
is now done when the scan work terminates. This results in the driver
depending on stale information, defaulting to non-HT mode always.
Fix this by passing the new channel type to the driver.
Cc: stable@kernel.org
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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At the wireless summit in Portland we discussed a way of
loading firmware asynchronously from ->probe() before
registration to mac80211, in order to register with the
wireless subsystems with complete information in cases
where firmware is required to know parameters.
This is not yet the case in iwlwifi, but for some new
features we're working on it will be the case since
those will only be supported by new firmware images.
Hence, to start with, convert iwlwifi to load firmware
asynchronously from probe, unbinding the device when
firmware loading fails, and only registering with the
wireless subsystems after firmware has been loaded
successfully.
Future patches will hook into this to register the
new firmware capabilities, depending on the firmware
API version.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This converts ar9170 to load firmware asynchronously
out of ->probe() and only register with mac80211 when
all firmware has been loaded successfully. If, on the
other hand, any firmware fails to load, it will now
unbind from the device.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Compiling rt2800pci with CONFIG_RT2800PCI_SOC fails with "... rt2880pci.c:
error: incompatible type for argument 2 of 'rt2x00soc_probe'".
Fix this by using &rt2800pci_ops instead of rt2800pci_ops.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This adds support for CEIVA USB wireless adapters to the rt73usb driver.
Signed-off-by: Bryan Polk <sainth@eidolons.org>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Commit e1dd33f60ced091114e4aacf141e0d03b88d3e13 changed cfg80211 to
allow association commands while in associated state to enable support
for roaming within an ESS. However, this was not enough to resolve all
cases with mac80211 which needs some additional handling of the
reassociation case to clear internal state with the BSS that was in use
previously.
This patch makes ieee80211_mgd_assoc() accept a valid reassociation
command and clean the association state with the previous BSS. This
fixes roaming between BSSes in an ESS when using wpa_supplicant with
-Dnl80211.
Signed-off-by: Jouni Malinen <j@w1.fi>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Since txq->axq_lock may be hold in softirq context, it must be
acquired with spin_lock_bh() instead of spin_lock() if softieq is
enabled.
The patch fixes the lockdep warning below when unloading ath9k modules.
=================================
[ INFO: inconsistent lock state ]
2.6.33-wl #12
---------------------------------
inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
rmmod/3642 [HC0[0]:SC0[0]:HE1:SE1] takes:
(&(&txq->axq_lock)->rlock){+.?...}, at: [<ffffffffa03568c3>] ath_tx_node_cleanup+0x62/0x180 [ath9k]
{IN-SOFTIRQ-W} state was registered at:
[<ffffffff8107577d>] __lock_acquire+0x2f6/0xd35
[<ffffffff81076289>] lock_acquire+0xcd/0xf1
[<ffffffff813a7486>] _raw_spin_lock_bh+0x3b/0x6e
[<ffffffffa0356b49>] spin_lock_bh+0xe/0x10 [ath9k]
[<ffffffffa0358ec7>] ath_tx_tasklet+0xcd/0x391 [ath9k]
[<ffffffffa0354f5f>] ath9k_tasklet+0x70/0xc8 [ath9k]
[<ffffffff8104e601>] tasklet_action+0x8c/0xf4
[<ffffffff8104f459>] __do_softirq+0xf8/0x1cd
[<ffffffff8100ab1c>] call_softirq+0x1c/0x30
[<ffffffff8100c2cf>] do_softirq+0x4b/0xa3
[<ffffffff8104f045>] irq_exit+0x4a/0x8c
[<ffffffff813acccc>] do_IRQ+0xac/0xc3
[<ffffffff813a7d53>] ret_from_intr+0x0/0x16
[<ffffffff81302d52>] cpuidle_idle_call+0x9e/0xf8
[<ffffffff81008be7>] cpu_idle+0x62/0x9d
[<ffffffff81391c1a>] rest_init+0x7e/0x80
[<ffffffff818bbd38>] start_kernel+0x3e8/0x3f3
[<ffffffff818bb2bc>] x86_64_start_reservations+0xa7/0xab
[<ffffffff818bb3b8>] x86_64_start_kernel+0xf8/0x107
irq event stamp: 42037
hardirqs last enabled at (42037): [<ffffffff813a7b21>] _raw_spin_unlock_irqrestore+0x47/0x56
hardirqs last disabled at (42036): [<ffffffff813a72f4>] _raw_spin_lock_irqsave+0x2b/0x88
softirqs last enabled at (42000): [<ffffffffa0353ea6>] spin_unlock_bh+0xe/0x10 [ath9k]
softirqs last disabled at (41998): [<ffffffff813a7463>] _raw_spin_lock_bh+0x18/0x6e
other info that might help us debug this:
4 locks held by rmmod/3642:
#0: (rtnl_mutex){+.+.+.}, at: [<ffffffff8132c10d>] rtnl_lock+0x17/0x19
#1: (&wdev->mtx){+.+.+.}, at: [<ffffffffa01e53f2>] cfg80211_netdev_notifier_call+0x28d/0x46d [cfg80211]
#2: (&ifmgd->mtx){+.+.+.}, at: [<ffffffffa0260834>] ieee80211_mgd_deauth+0x3f/0x17e [mac80211]
#3: (&local->sta_mtx){+.+.+.}, at: [<ffffffffa025a381>] sta_info_destroy_addr+0x2b/0x5e [mac80211]
stack backtrace:
Pid: 3642, comm: rmmod Not tainted 2.6.33-wl #12
Call Trace:
[<ffffffff81074469>] valid_state+0x178/0x18b
[<ffffffff81014f94>] ? save_stack_trace+0x2f/0x4c
[<ffffffff81074e08>] ? check_usage_backwards+0x0/0x88
[<ffffffff8107458f>] mark_lock+0x113/0x230
[<ffffffff810757f1>] __lock_acquire+0x36a/0xd35
[<ffffffff8101018d>] ? native_sched_clock+0x2d/0x5f
[<ffffffffa03568c3>] ? ath_tx_node_cleanup+0x62/0x180 [ath9k]
[<ffffffff81076289>] lock_acquire+0xcd/0xf1
[<ffffffffa03568c3>] ? ath_tx_node_cleanup+0x62/0x180 [ath9k]
[<ffffffff810732eb>] ? trace_hardirqs_off+0xd/0xf
[<ffffffff813a7193>] _raw_spin_lock+0x36/0x69
[<ffffffffa03568c3>] ? ath_tx_node_cleanup+0x62/0x180 [ath9k]
[<ffffffffa03568c3>] ath_tx_node_cleanup+0x62/0x180 [ath9k]
[<ffffffff810749ed>] ? trace_hardirqs_on+0xd/0xf
[<ffffffffa0353950>] ath9k_sta_remove+0x22/0x26 [ath9k]
[<ffffffffa025a08f>] __sta_info_destroy+0x1ad/0x38c [mac80211]
[<ffffffffa025a394>] sta_info_destroy_addr+0x3e/0x5e [mac80211]
[<ffffffffa02605d6>] ieee80211_set_disassoc+0x175/0x180 [mac80211]
[<ffffffffa026084d>] ieee80211_mgd_deauth+0x58/0x17e [mac80211]
[<ffffffff813a60c1>] ? __mutex_lock_common+0x37f/0x3a4
[<ffffffffa01e53f2>] ? cfg80211_netdev_notifier_call+0x28d/0x46d [cfg80211]
[<ffffffffa026786e>] ieee80211_deauth+0x1e/0x20 [mac80211]
[<ffffffffa01f47f9>] __cfg80211_mlme_deauth+0x130/0x13f [cfg80211]
[<ffffffffa01e53f2>] ? cfg80211_netdev_notifier_call+0x28d/0x46d [cfg80211]
[<ffffffff810732eb>] ? trace_hardirqs_off+0xd/0xf
[<ffffffffa01f7eee>] __cfg80211_disconnect+0x111/0x189 [cfg80211]
[<ffffffffa01e5433>] cfg80211_netdev_notifier_call+0x2ce/0x46d [cfg80211]
[<ffffffff813aa9ea>] notifier_call_chain+0x37/0x63
[<ffffffff81068c98>] raw_notifier_call_chain+0x14/0x16
[<ffffffff81322e97>] call_netdevice_notifiers+0x1b/0x1d
[<ffffffff8132386d>] dev_close+0x6a/0xa6
[<ffffffff8132395f>] rollback_registered_many+0xb6/0x2f4
[<ffffffff81323bb8>] unregister_netdevice_many+0x1b/0x66
[<ffffffffa026494f>] ieee80211_remove_interfaces+0xc5/0xd0 [mac80211]
[<ffffffffa02580a2>] ieee80211_unregister_hw+0x47/0xe8 [mac80211]
[<ffffffffa035290e>] ath9k_deinit_device+0x7a/0x9b [ath9k]
[<ffffffffa035bc26>] ath_pci_remove+0x38/0x76 [ath9k]
[<ffffffff8120940a>] pci_device_remove+0x2d/0x51
[<ffffffff8129d797>] __device_release_driver+0x7b/0xd1
[<ffffffff8129d885>] driver_detach+0x98/0xbe
[<ffffffff8129ca7a>] bus_remove_driver+0x94/0xb7
[<ffffffff8129ddd6>] driver_unregister+0x6c/0x74
[<ffffffff812096d2>] pci_unregister_driver+0x46/0xad
[<ffffffffa035bae1>] ath_pci_exit+0x15/0x17 [ath9k]
[<ffffffffa035e1a2>] ath9k_exit+0xe/0x2f [ath9k]
[<ffffffff8108050a>] sys_delete_module+0x1c7/0x236
[<ffffffff813a7df5>] ? retint_swapgs+0x13/0x1b
[<ffffffff810749b5>] ? trace_hardirqs_on_caller+0x119/0x144
[<ffffffff8109b9f6>] ? audit_syscall_entry+0x11e/0x14a
[<ffffffff81009bb2>] system_call_fastpath+0x16/0x1b
wlan1: deauthenticating from 00:23:cd:e1:f9:b2 by local choice (reason=3)
PM: Removing info for No Bus:wlan1
cfg80211: Calling CRDA to update world regulatory domain
PM: Removing info for No Bus:rfkill2
PM: Removing info for No Bus:phy1
ath9k 0000:16:00.0: PCI INT A disabled
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The first chunk fixes a debugging assert to print a warning about array underflows.
The second chunk corrects a potential array underflow. I also removed an assert
in the second chunk because it can no longer happen.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Benoit Papillault <benoit.papillault@free.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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