Johannes Berg [Tue, 5 Jun 2012 12:28:42 +0000 (14:28 +0200)]
mac80211: unify SW/offload remain-on-channel
Redesign all the off-channel code, getting rid of
the generic off-channel work concept, replacing
it with a simple remain-on-channel list.
This fixes a number of small issues with the ROC
implementation:
* offloaded remain-on-channel couldn't be queued,
now we can queue it as well, if needed
* in iwlwifi (the only user) offloaded ROC is
mutually exclusive with scanning, use the new
queue to handle that case -- I expect that it
will later depend on a HW flag
The bigger issue though is that there's a bad bug
in the current implementation: if we get a mgmt
TX request while HW roc is active, and this new
request has a wait time, we actually schedule a
software ROC instead since we can't guarantee the
existing offloaded ROC will still be that long.
To fix this, the queuing mechanism was needed.
The queuing mechanism for offloaded ROC isn't yet
optimal, ideally we should add API to have the HW
extend the ROC if needed. We could add that later
but for now use a software implementation.
Overall, this unifies the behaviour between the
offloaded and software-implemented case as much
as possible.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Jun 2012 12:28:40 +0000 (14:28 +0200)]
mac80211: do remain-on-channel while idle
The IDLE handling in HW off-channel is broken right
now since we turn off IDLE only when the off-channel
period already started. Therefore, all drivers that
use it today (only iwlwifi!) must support off-channel
while idle, so playing with idle isn't needed at all.
Off-channel in general, since it's no longer used for
authentication/association, shouldn't affect PS, so
also remove that logic.
Also document a small caveat for reporting TX status
from off-channel frames in HW remain-on-channel.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Jun 2012 12:21:14 +0000 (14:21 +0200)]
wireless: update wireless URLs
The preferred URL is http://wireless.kernel.org/
rather than http://linuxwireless.org/, update all
URLs to point there.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 14:54:13 +0000 (20:24 +0530)]
ath9k: Resync beacons properly
After a chip reset, the beacon timers have to re-programmed
correctly for a station in associated state. Use the PS flags
to ensure that this is done after a TSF sync happens, otherwise
the driver ends up using incorrect values for TBTT/DTIM in
powersave mode.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 14:54:07 +0000 (20:24 +0530)]
ath9k: Fix powersave locking
The 'ps_flags' is used/accessed in a variety of contexts
and requires proper locking. Use 'sc_pm_lock' appropriately.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 14:54:01 +0000 (20:24 +0530)]
ath9k: Handle fatal interrupts properly
When a fatal interrupt is received or it is detected that the baseband
has hung, the chip has to be reset immediately. Otherwise, we end up
processing spurious interrupts. Ensure that we bail out properly in
the ISR when the reset work hasn't completed yet.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 14:53:55 +0000 (20:23 +0530)]
ath9k: Use atomic operations
The 'sc_flags' variable is being used in a number of places
with no locking whatsoever. This patch converts the usage
of sc_flags to atomic ops.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 14:53:49 +0000 (20:23 +0530)]
ath9k: Move LNA code to antenna.c
And use a helper function to setup antennae after a reset.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 14:53:43 +0000 (20:23 +0530)]
ath9k: Fix work handling
* Currently, there is no synchronization between the reset
work and the tx-poll work. Fix this and make sure that we
bail out properly if a reset work is in progress.
* Cleanup the PLL WAR and enable it for AR9340 too and
use a helper for restarting work/timers after a reset.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 14:53:37 +0000 (20:23 +0530)]
ath9k: Group link monitoring logic
Add link.c and move all the link/connection monitoring
code to it.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:52 +0000 (16:28 +0530)]
ath9k: improve BT FTP/PAN performance
When BT FTP/PAN transmits while WLAN is idle, the one of 9462 chain
often picks up BT's tx signal and starts receiving. If the current
weight is set to be higher than BT tx, BT tx will be aborted and this
also degrades BT performance. Hence lower WLAN rx priority in this
case only when there are no WLAN traffic.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:47 +0000 (16:28 +0530)]
ath9k_hw: fix power state for MCI
Program MCI related power registers only if MCI interrupts
are enabled. This could help to reduce power consumptions when
WLAN alone is enabled in BT coex chips.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:41 +0000 (16:28 +0530)]
ath: do not update cycle counters with sleep mode
When the chip is waking up from sleep state, the cycle counters
might have incorrect readings. So it is better not to update those
readings with software counters.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:36 +0000 (16:28 +0530)]
ath9k: BT coex performance tuning for AR9462
Use smaller aggregation limit and increasing aggregation threshold
for osla that could improve wlan performance when there is HID profile.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:31 +0000 (16:28 +0530)]
ath9k_hw: fix BT RF performance
When software rfkill is triggered, before put the chip in reset
state, give LNA and SPDT control to BT to make sure BT can have
good RF performance.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:25 +0000 (16:28 +0530)]
ath9k_hw: configure ar9462 switching regulator
Enable WLAN and BT mode for switching regulator discontinuous
orverride for AR9462 chips.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:20 +0000 (16:28 +0530)]
ath9k_hw: program BT to control SPDT
program BT to control SPDT everytime while loading switch table
from eeprom.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:14 +0000 (16:28 +0530)]
ath9k_hw: fix IQ calibration chain index
The chain index to perform IQ calibration is counted to number of valid
tx chains and then used for indexing chain specific registers. If the
chainmask is set to 0x2 (i.e chain 1 only), still it accesses chain 0
registers for chain 1. So use real chain index instead sequential one.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:08 +0000 (16:28 +0530)]
ath9k: cleanup MCI indentation
Fix bad indentation & if nesting to lose about two levels
of unnecessary indentation.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rajkumar Manoharan [Mon, 4 Jun 2012 10:58:03 +0000 (16:28 +0530)]
ath9k_hw: update ar9462 initval table to fix rx
The wrong ADC sample phase that happen between awake and
network/full sleep will lead to improper rx noisefloor
calibration.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:58 +0000 (16:27 +0530)]
ath9k: Use separate operational flags for BTCOEX
Also, use atomic operations to check the flags.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:52 +0000 (16:27 +0530)]
ath9k: Remove SC_OP_OFFCHANNEL
mac80211's IEEE80211_CONF_OFFCHANNEL can be used directly
to track offchannel state. Also pass the correct boolean
value to ath9k_hw_startpcureceive().
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:47 +0000 (16:27 +0530)]
ath9k_hw: Fix variable usage
Exposed by sparse:
ar9003_mci.c:1134:31: warning: Using plain integer as NULL pointer
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:41 +0000 (16:27 +0530)]
ath9k: Add MCI interrupt to debugfs statistics
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:36 +0000 (16:27 +0530)]
ath9k_hw: Cleanup power mode API
The 'setChip' variable is unused, remove it and
simplify the functions.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:30 +0000 (16:27 +0530)]
ath9k_hw: Fix MCI usage
MCI has to be handled only when BTCOEX is actually enabled.
Check for this condition before calling MCI related functions
from various reset/calibration call-sites.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:25 +0000 (16:27 +0530)]
ath9k_hw: Fix AR_RTC_KEEP_AWAKE usage
The default value that is being programmed to AR_RTC_KEEP_AWAKE
is 0x2, there is no need to program it manually in various
functions.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:19 +0000 (16:27 +0530)]
ath9k: Setup MCI interrupts properly
MCI interrupts have to be enabled only when BTCOEX is
actually in use.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:14 +0000 (16:27 +0530)]
ath9k: Handle ASPM properly
ASPM has to be disabled when BTCOEX is in use, do this properly
by calling the bus-specific ASPM init routine after the
BTCOEX scheme has been determined.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Mon, 4 Jun 2012 10:57:08 +0000 (16:27 +0530)]
ath9k: Prune ath9k_init_device
Instead of cluttering ath9k_init_device() with 'ath_softc'
specific initialization code, use ath9k_init_softc() to
setup driver-specific work routines, timers etc.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arik Nemtsov [Sun, 3 Jun 2012 20:31:56 +0000 (23:31 +0300)]
mac80211: add stations after AP start on reconfig
When performing a HW restart for an AP mode interface, add stations back
only after the AP is beaconing. This mimics the normal flow of STA
addition on AP.
Some devices (wlcore) do not support adding stations before beaconing,
so this has the added benefit of making recovery work for them.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Chris Yungmann [Sun, 3 Jun 2012 05:57:57 +0000 (00:57 -0500)]
brcm80211: brcmsmac: fixed checkpatch and sparse warnings
Fixed checkpatch and sparse warnings related to aiutils.*
Signed-off-by: Chris Yungmann <yungmann.chris@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Fri, 1 Jun 2012 10:50:54 +0000 (12:50 +0200)]
cfg80211: validate remain-on-channel time better
The remain-on-channel time validation shouldn't
depend on the value of HZ, as it does now with
the check against jiffies, since then you might
use a value that works on one system but not on
another. Fix it by checking against a minimum
that's fixed.
Also add validation of the wait duration for a
management frame TX since this also translates
into remain-on-channel internally.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hauke Mehrtens [Thu, 31 May 2012 20:38:22 +0000 (22:38 +0200)]
ssb: recognize ARM Cortex M3
I found this core on a BCM4322, a PCI card in the Linksys WRT610N V1.
This core is not used by the driver, this patch just makes ssb show the
correct name.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Pontus Fuchs [Thu, 31 May 2012 10:34:47 +0000 (12:34 +0200)]
mac80211: Clear wowlan flag when drv_suspend returns failure
drv_resume can get called without a prior call to drv_suspend.
Consider the following steps:
1. Suspend is started but driver's drv_suspend returns error.
2. Suspend is aborted. local->wowlan flag is left set.
3. Interface is removed.
4. Suspend again. This time open_count is 0 so drv_suspend is
not called and local->wowlan not cleared.
5. On resume ieee80211_reconfig will call drv_resume since
local->wowlan is set.
Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Chun-Yeow Yeoh [Thu, 31 May 2012 10:17:30 +0000 (18:17 +0800)]
mac80211: Add missing mesh parameter dot11MeshForwarding for debugfs
Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 30 May 2012 13:57:00 +0000 (15:57 +0200)]
mac80211: print info when disabling HT
Make mac80211 print a message when it disables
HT due to the connection using WEP/TKIP or due
to the AP not supporting WMM/QoS.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Wed, 30 May 2012 08:56:46 +0000 (10:56 +0200)]
mac80211: configure 11b/g channel access rules for legacy APs
For each EDCA TX queue change default settings (in STA mode) to conform
old 802.11b/g channel access rules. This is needed for drivers that do
not have QoS enable/disable "switch" (like rt2x00) to make them work
properly with legacy APs.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Vivek Natarajan [Tue, 29 May 2012 10:29:55 +0000 (15:59 +0530)]
ath9k: Ensure a fair beacon distribution in IBSS mode
Configure CWmin based on slot time for IBSS mode. This helps
in increasing the beacon distribution of ath9k to accepted
levels in 11a mode.
Signed-off-by: Vivek Natarajan <nataraja@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zero.Lin [Tue, 29 May 2012 08:11:09 +0000 (16:11 +0800)]
rt2x00:Add RT5392 chipset support
Signed-off-by: Zero.Lin <Zero.Lin@mediatek.com>
Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Mon, 28 May 2012 09:54:11 +0000 (11:54 +0200)]
iwl4965: claim RSN IBSS support
Similar like other drivers including iwl3945, do not configure group
keys to the hardware (on Ad-Hoc mode) to make IBSS RSN work.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Mon, 28 May 2012 09:53:11 +0000 (11:53 +0200)]
rt2x00: claim RSN IBSS support
Similar like other drivers, do not configure group keys to the hardware
(on Ad-Hoc mode) to make IBSS RSN work.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Zefir Kurtisi [Wed, 23 May 2012 11:34:31 +0000 (13:34 +0200)]
ath9k: fix/add bits for spectral scanning
Updates for spectral scanning register modification for AR93x:
* fix bits for spectral_scan_count
* add bits for new parameters
Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Alex Hung [Wed, 23 May 2012 06:11:52 +0000 (14:11 +0800)]
rfkill: Add the capability to switch all devices of all type in __rfkill_switch_all().
__rfkill_switch_all() switches the state of devices of a given type; however,
it does not switch devices of all type (RFKILL_TYPE_ALL). As a result, it
ignores the keycode "KEY_RFKILL" from another module, i.e. eeepc-wmi.
This fix is to make __rfkill_switch_all() to be able to switch not only
devices of a given type but also all devices.
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 6 Jun 2012 06:18:22 +0000 (08:18 +0200)]
cfg80211: clarify set_channel APIs
Now that we've removed all uses of the set_channel
API except for the monitor channel and in libertas,
clarify this. Split the libertas mesh use into a
new libertas_set_mesh_channel() operation, just to
keep backward compatibility, and rename the normal
set_channel() to set_monitor_channel().
Also describe the desired set_monitor_channel()
semantics more clearly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Wed, 6 Jun 2012 18:40:06 +0000 (14:40 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless
Conflicts:
drivers/net/wireless/iwlwifi/iwl-drv.c
John W. Linville [Wed, 6 Jun 2012 17:57:05 +0000 (13:57 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/bluetooth/bluetooth
Stanislav Yakovlev [Thu, 17 May 2012 19:56:35 +0000 (15:56 -0400)]
net/wireless: ipw2200: introduce ipw_read_eeprom function
We separate reading of device's eeprom content from writing it back
to the device's sram.
Signed-off-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Avinash Patil [Thu, 17 May 2012 04:24:55 +0000 (21:24 -0700)]
mwifiex: support NL80211_HIDDEN_SSID_ZERO_LEN for uAP
mwifiex uAP supports NL80211_HIDDEN_SSID_ZERO_LEN type of hidden
SSID only. NL80211_HIDDEN_SSID_ZERO_CONTENTS is not supported.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Avinash Patil [Thu, 17 May 2012 04:24:54 +0000 (21:24 -0700)]
mwifiex: invalidate bss config before setting channel for uAP
Mark bss_config parameters as invalid before setting AP channel.
This prevents from setting invalid parameters while setting AP
channel to FW.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:50:20 +0000 (23:50 +0200)]
cfg80211: provide channel to join_mesh function
Just like the AP mode patch, instead of setting
the channel and then joining the mesh network,
provide the channel to join the network on to
the join_mesh() function.
Like in AP mode, you can also give the channel
to the join-mesh nl80211 command now.
Unlike AP mode, it picks a default channel if
none was given.
As libertas uses mesh mode interfaces but has
no join_mesh callback and we can't simply break
it, keep some compatibility code for that case
and configure the channel directly for it.
In the non-libertas case, where we store the
channel until join, allow setting it while the
interface is down.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:50:19 +0000 (23:50 +0200)]
cfg80211: disallow setting channel on WDS interfaces
If it worked (Felix says it doesn't right now), the
typical use-case for WDS interfaces would be to be
slaved to AP mode interfaces. Therefore, it isn't
necessary to set the channel on WDS interfaces. As
they don't support powersave or anything like that,
they also couldn't use a different channel anyway.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:50:18 +0000 (23:50 +0200)]
cfg80211: provide channel to start_ap function
Instead of setting the channel first and then
starting the AP, let cfg80211 store the channel
and provide it as one of the AP settings.
This means that now you have to set the channel
before you can start an AP interface, but since
hostapd/wpa_supplicant always do that we're OK
with this change.
Alternatively, it's now possible to give the
channel as an attribute to the start-ap nl80211
command, overriding any preset channel.
Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:50:17 +0000 (23:50 +0200)]
cfg80211: simplify cfg80211_can_beacon_sec_chan API
Change cfg80211_can_beacon_sec_chan() to return true
if there is no secondary channel to simplify all the
current users of it. They all check the channel type
before calling the function because it returns false
if there's no secondary channel.
Also actually document the return value.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:50:16 +0000 (23:50 +0200)]
mac80211: move ieee80211_set_channel function
Move the set_channel function up so it can be used
by other code in this file in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:50:15 +0000 (23:50 +0200)]
mac80211: clean up ieee80211_set_channel
There's no need for ieee80211_set_channel to check
whether a change in configuration happened since
ieee80211_hw_config() auto-detects it.
Additionally, it's wrong to pretend the HT config
for the BSS changed, it didn't, the BSS can't be
up & running (AP beaconing etc.) when the channel
type is changed anyway.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:43:19 +0000 (23:43 +0200)]
mac80211: simplify association HT parameters
Instead of passing around the entire HT information
IE, extract only the HT parameters field and disable
HT if the HT information IE isn't present and well-
formed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:40:19 +0000 (23:40 +0200)]
cfg80211: deprecate CFG80211_WEXT
Almost all wireless tools have transitioned to
or at least added compatibility with nl80211 so
there's no real need for CONFIG_CFG80211_WEXT
any more. Mark it for removal, and also change
the default to not be enabled.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:40:18 +0000 (23:40 +0200)]
wireless: remove wext sysfs
The only user of this was hal prior to its 0.5.12
release which happened over two years ago, so I'm
sure this can be removed without issues.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Meenakshi Venkataraman [Wed, 16 May 2012 20:54:30 +0000 (22:54 +0200)]
iwlwifi: add debugging to shadow registers and fix typo
Add a debugging log when using shadow
registers. Also fix a minor typo in this
connection.
Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 20:54:29 +0000 (22:54 +0200)]
iwlwifi: clean up coding style in PCIe transport
Mostly clean up indentation around parentheses
after if, function calls, etc. and also a few
unneeded line breaks and some other things.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 20:54:28 +0000 (22:54 +0200)]
iwlwifi: move notification wait into core
This code is a library to be used by multiple
opmodes, so move it into the iwlwifi module.
Reviewed-by: Donald H Fry <donald.h.fry@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Don Fry [Wed, 16 May 2012 20:54:27 +0000 (22:54 +0200)]
iwlwifi: implement dynamic opmode loading
This is the next step in splitting up the driver,
making the uCode API dependent pieces of it live
in separate modules. Right now there's only one
so it's not user-selectable, but we're actively
working on more.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 20:54:26 +0000 (22:54 +0200)]
iwlwifi: move IWL_CMD_FAILED_MSK
This is common, not uCode API specific, so move
it to the transport together with the command
header struct definition.
Reviewed-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Reviewed-by: Guy Cohen <guy.cohen@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 20:54:25 +0000 (22:54 +0200)]
iwlwifi: properly handle device_set_wakeup_enable
This is intended to be set whenever wakeup will be
needed upon suspend, not only when suspending, so
use the new callbacks to set it then.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Gregory Greenman [Wed, 16 May 2012 20:54:24 +0000 (22:54 +0200)]
iwlwifi: Move IWL_MASK macro to transport.
This macro is needed by other transports besides PCIe, thus
moving to a common location.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Emmanuel Grumbach [Wed, 16 May 2012 20:54:23 +0000 (22:54 +0200)]
iwlwifi: s/iwlagn_unmap_tfd/iwl_unmap_tfd
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Emmanuel Grumbach [Wed, 16 May 2012 20:54:22 +0000 (22:54 +0200)]
iwlwifi: s/iwlagn_txq_free_tfd/iwl_txq_free_tfd
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 16 May 2012 21:05:09 +0000 (23:05 +0200)]
iwlwifi: add __printf argument checking
Joe Perches suggested adding the __printf attribute
to the __iwl_dbg function to check arguments; add it
to all of the logging functions (err, warn, info, dbg
and crit.)
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Meenakshi Venkataraman [Wed, 16 May 2012 20:40:50 +0000 (22:40 +0200)]
iwlwifi: fix debug print in iwl_sta_calc_ht_flags
We missed passing an argument to the
debug print. Fix it.
Cc: stable@kernel.org
Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Emmanuel Grumbach [Wed, 16 May 2012 20:40:49 +0000 (22:40 +0200)]
iwlwifi: fix prints in iwl_rx_handle
The debug prints were wrong and buggy. The HW pointer wasn't printed
correctly, it was mixed up with the pointer to the rxbuf.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
villacis@palosanto.com [Wed, 16 May 2012 19:07:12 +0000 (21:07 +0200)]
rt2x00: Add support for RT5360 based PCI devices.
This chip is used at least by the D-Link DWA-525 adapter.
Signed-off-by: Alex Villac<ED>s Lasso <a_villacis@palosanto.com>
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Eliad Peller [Wed, 16 May 2012 16:09:48 +0000 (19:09 +0300)]
mac80211: remove ieee80211_get_operstate()
ieee80211_get_operstate() was used by drivers in order to
know whether the sta link is up, but it's no longer needed
(nor used) as mac80211 notifies the drivers about
authorization changes (via the sta_state callback)
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Greear [Tue, 15 May 2012 22:33:25 +0000 (15:33 -0700)]
ath9k: Support ethtool getstats api.
This returns many of the values that formerly could
only be obtained from debugfs. This should be an
improvement when trying to access these counters
programatically. Currently this support is only
enabled when DEBUGFS is enabled because otherwise
these stats are not accumulated.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Joe Perches [Tue, 15 May 2012 21:20:32 +0000 (14:20 -0700)]
net: mac80211: Add and use ibss_vdbg debugging macro
Simplify the use of #ifdef CONFIG_MAC80211_IBSS_DEBUG/#endif
by adding a logging macro to encapsulate the test.
Convert the appropriate uses too.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Joe Perches [Tue, 15 May 2012 21:20:31 +0000 (14:20 -0700)]
net: mac80211: Add and use ht_vdbg debugging macro
Simplify the use of #ifdef CONFIG_MAC80211_HT_DEBUG/#endif
by adding a logging macro to encapsulate the test.
Convert the appropriate uses too.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Joe Perches [Tue, 15 May 2012 21:20:30 +0000 (14:20 -0700)]
net: mac80211: Convert printk(KERN_DEBUG to pr_debug
Standardize the debugging to be able to use dynamic_debug.
Coalesce formats, align arguments.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Holger Schurig [Tue, 15 May 2012 13:38:59 +0000 (15:38 +0200)]
mac80211: send beacon loss events to userspace
Send beacon loss events to userspace, so it will be
able to initiate roaming before disconnection
Signed-off-by: Holger Schurig <holgerschurig@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Eliad Peller [Tue, 15 May 2012 11:50:58 +0000 (14:50 +0300)]
nl80211: add new rssi event to indicate beacon loss
Tell userspace about beacon loss event.
This event doesn't replace the deauth/disassoc that
might come if the AP is not available.
The driver can send this event in order to hint
userspace what might follow (which in turn can
use it as roaming trigger).
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Mohammed Shafi Shajakhan [Tue, 15 May 2012 09:54:47 +0000 (15:24 +0530)]
ath9k: Fix modal EEPROM dump
we provide excess buffer size for 'simple_read_from_buffer'
for modal EEPROM dump. This results in trailing NULL bytes
at the end of EEPROM dump, fix this.
Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Reported-by: Holger Schurig <holgerschurig@googlemail.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Tested-by: Holger Schurig <holgerschurig@gogglemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Dan Carpenter [Tue, 15 May 2012 09:00:27 +0000 (12:00 +0300)]
brcm80211: brcmu_pkt_buf_free_skb() should handle NULL
This is potentially called with NULL pointers, for example, look at
brcmf_c_prec_enq(). Since it's a free() function, probably people
expect it to handle NULL pointers.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Dan Carpenter [Mon, 14 May 2012 20:57:29 +0000 (23:57 +0300)]
brcm80211: remove an unneeded NULL check
This code causes a static checker warning because "pi" gets dereferenced
before it is checked. The dereference is inside the write_phy_reg()
function which is called from wlc_phy_write_txmacreg_nphy().
This code is only called from wlc_phy_init_nphy() and "pi" is a
valid pointer so we can remove the check for NULL.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Albert Pool [Mon, 14 May 2012 16:08:32 +0000 (18:08 +0200)]
rt2800usb: 2001:3c17 is an RT3370 device
D-Link DWA-123 rev A1
Signed-off-by: Albert Pool<albertpool@solcon.nl>
Cc: <stable@vger.kernel.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Thomas Pedersen [Mon, 14 May 2012 05:24:08 +0000 (22:24 -0700)]
mac80211: allow channel change while mesh is down
Allow channel change on a mesh interface if the interface is up and no
mesh is started.
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Eliad Peller [Sun, 13 May 2012 15:07:04 +0000 (18:07 +0300)]
mac80211: fail authentication when AP denied authentication
ieee80211_rx_mgmt_auth() doesn't handle denied authentication
properly - it authenticates the station and waits for association
(for 5 seconds) instead of failing the authentication.
Fix it by destroying auth_data and bailing out instead.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Cc: stable@vger.kernel.org #3.4
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Eliad Peller [Sun, 13 May 2012 13:47:05 +0000 (16:47 +0300)]
mac80211: use offchannel queue only when supported
Commit
3a25a8c ("mac80211: add improved HW queue control")
added support for offchannel queue mapping. However, this
mapping is only valid when the driver supports
IEEE80211_HW_QUEUE_CONTROL.
Check whether the driver supports IEEE80211_HW_QUEUE_CONTROL
before setting the hw_queue to the mapped offchannel queue.
(This patch doesn't have any actual effect, because
hw_queue is overridden in ieee80211_tx() anyway,
so this is merely some cleanup)
Signed-off-by: Eliad Peller <eliad@wizery.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arik Nemtsov [Thu, 10 May 2012 13:18:26 +0000 (16:18 +0300)]
mac80211: allow low-level drivers to set netdev feature bits
Low level drivers can now set certain netdev feature bits in
netdev_features member of the ieee80211_hw struct. These will be
propagated to every netdev created from this HW.
The white-listed features currently include only ones related to HW
checksumming.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Jun 2012 10:16:50 +0000 (12:16 +0200)]
cfg80211: fix interface combinations check
If a given interface combination doesn't contain
a required interface type then we missed checking
that and erroneously allowed it even though iface
type wasn't there at all. Add a check that makes
sure that all interface types are accounted for.
Cc: stable@kernel.org
Reported-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Jun 2012 07:38:35 +0000 (09:38 +0200)]
iwlwifi: unregister LEDs if mac80211 registration fails
Otherwise the LEDs stick around and cause issues the
next time around since they're still there but not
really hooked up.
Cc: stable@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Jun 2012 17:56:06 +0000 (19:56 +0200)]
iwlwifi: fix double free/complete in firmware loading
Linus reported that due to mac80211 failing to register
the device (due to WoWLAN) his machine crashed etc. as
we double-freed the vmalloc() firmware area. His patch
to fix it was very similar to this one but I noticed
that there's another bug in the area: we complete the
completion before starting, so since we're running in
a work struct context stop() could be called while in
the middle of start() which will almost certainly lead
to issues.
Make a modification similar to his to avoid the double-
free but also move the completion to another spot so it
is only done after start() either finished or failed so
that stop() can have a consistent state.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Vinicius Costa Gomes [Fri, 1 Jun 2012 01:53:39 +0000 (22:53 -0300)]
Bluetooth: Fix checking the wrong flag when accepting a socket
Most probably a typo, the check should have been for BT_SK_DEFER_SETUP
instead of BT_DEFER_SETUP (which right now only represents a socket
option).
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Acked-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Johannes Berg [Mon, 4 Jun 2012 11:43:11 +0000 (13:43 +0200)]
iwlwifi: disable WoWLAN if !CONFIG_PM_SLEEP
If CONFIG_PM_SLEEP is disabled, then iwlwifi doesn't
support suspend/resume handlers and thus mac80211
(correctly) refuses advertising WoWLAN. Disable
WoWLAN in the driver in this case.
Cc: stable@kernel.org
Reported-by: Sebastian Kemper <sebastian_ml@gmx.net>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arik Nemtsov [Sun, 3 Jun 2012 20:32:32 +0000 (23:32 +0300)]
mac80211: fix non RCU-safe sta_list manipulation
sta_info_cleanup locks the sta_list using rcu_read_lock however
the delete operation isn't rcu safe. A race between sta_info_cleanup
timer being called and a STA being removed can occur which leads
to a panic while traversing sta_list. Fix this by switching to the
RCU-safe versions.
Cc: stable@vger.kernel.org
Reported-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Seth Forshee [Fri, 1 Jun 2012 14:13:17 +0000 (09:13 -0500)]
bcma: add ext PA workaround for BCM4331 and BCM43431
MacBook Pro models with BCM4331 wireless have been found to have the ext
PA lines disabled after resuming from S3 without external power attach.
This causes them to be unable to transmit. Add a workaround to ensure
that the ext PA lines are enabled on BCM4331. Also extend all handling
of ext PA line muxing to BCM43431 as is done in the Broadcom SDK.
BugLink: http://bugs.launchpad.net/bugs/925577
Cc: Arend van Spriel <arend@broadcom.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: stable@vger.kernel.org
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Fri, 1 Jun 2012 09:29:40 +0000 (11:29 +0200)]
rt2x00: use atomic variable for seqno
Remove spinlock as atomic_t can be used instead. Note we use only 16
lower bits, upper bits are changed but we impilcilty cast to u16.
This fix possible deadlock on IBSS mode reproted by lockdep:
=================================
[ INFO: inconsistent lock state ]
3.4.0-wl+ #4 Not tainted
---------------------------------
inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
kworker/u:2/30374 [HC0[0]:SC0[0]:HE1:SE1] takes:
(&(&intf->seqlock)->rlock){+.?...}, at: [<
f9979a20>] rt2x00queue_create_tx_descriptor+0x380/0x490 [rt2x00lib]
{IN-SOFTIRQ-W} state was registered at:
[<
c04978ab>] __lock_acquire+0x47b/0x1050
[<
c0498504>] lock_acquire+0x84/0xf0
[<
c0835733>] _raw_spin_lock+0x33/0x40
[<
f9979a20>] rt2x00queue_create_tx_descriptor+0x380/0x490 [rt2x00lib]
[<
f9979f2a>] rt2x00queue_write_tx_frame+0x1a/0x300 [rt2x00lib]
[<
f997834f>] rt2x00mac_tx+0x7f/0x380 [rt2x00lib]
[<
f98fe363>] __ieee80211_tx+0x1b3/0x300 [mac80211]
[<
f98ffdf5>] ieee80211_tx+0x105/0x130 [mac80211]
[<
f99000dd>] ieee80211_xmit+0xad/0x100 [mac80211]
[<
f9900519>] ieee80211_subif_start_xmit+0x2d9/0x930 [mac80211]
[<
c0782e87>] dev_hard_start_xmit+0x307/0x660
[<
c079bb71>] sch_direct_xmit+0xa1/0x1e0
[<
c0784bb3>] dev_queue_xmit+0x183/0x730
[<
c078c27a>] neigh_resolve_output+0xfa/0x1e0
[<
c07b436a>] ip_finish_output+0x24a/0x460
[<
c07b4897>] ip_output+0xb7/0x100
[<
c07b2d60>] ip_local_out+0x20/0x60
[<
c07e01ff>] igmpv3_sendpack+0x4f/0x60
[<
c07e108f>] igmp_ifc_timer_expire+0x29f/0x330
[<
c04520fc>] run_timer_softirq+0x15c/0x2f0
[<
c0449e3e>] __do_softirq+0xae/0x1e0
irq event stamp:
18380437
hardirqs last enabled at (
18380437): [<
c0526027>] __slab_alloc.clone.3+0x67/0x5f0
hardirqs last disabled at (
18380436): [<
c0525ff3>] __slab_alloc.clone.3+0x33/0x5f0
softirqs last enabled at (
18377616): [<
c0449eb3>] __do_softirq+0x123/0x1e0
softirqs last disabled at (
18377611): [<
c041278d>] do_softirq+0x9d/0xe0
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&intf->seqlock)->rlock);
<Interrupt>
lock(&(&intf->seqlock)->rlock);
*** DEADLOCK ***
4 locks held by kworker/u:2/30374:
#0: (wiphy_name(local->hw.wiphy)){++++.+}, at: [<
c045cf99>] process_one_work+0x109/0x3f0
#1: ((&sdata->work)){+.+.+.}, at: [<
c045cf99>] process_one_work+0x109/0x3f0
#2: (&ifibss->mtx){+.+.+.}, at: [<
f98f005b>] ieee80211_ibss_work+0x1b/0x470 [mac80211]
#3: (&intf->beacon_skb_mutex){+.+...}, at: [<
f997a644>] rt2x00queue_update_beacon+0x24/0x50 [rt2x00lib]
stack backtrace:
Pid: 30374, comm: kworker/u:2 Not tainted 3.4.0-wl+ #4
Call Trace:
[<
c04962a6>] print_usage_bug+0x1f6/0x220
[<
c0496a12>] mark_lock+0x2c2/0x300
[<
c0495ff0>] ? check_usage_forwards+0xc0/0xc0
[<
c04978ec>] __lock_acquire+0x4bc/0x1050
[<
c0527890>] ? __kmalloc_track_caller+0x1c0/0x1d0
[<
c0777fb6>] ? copy_skb_header+0x26/0x90
[<
c0498504>] lock_acquire+0x84/0xf0
[<
f9979a20>] ? rt2x00queue_create_tx_descriptor+0x380/0x490 [rt2x00lib]
[<
c0835733>] _raw_spin_lock+0x33/0x40
[<
f9979a20>] ? rt2x00queue_create_tx_descriptor+0x380/0x490 [rt2x00lib]
[<
f9979a20>] rt2x00queue_create_tx_descriptor+0x380/0x490 [rt2x00lib]
[<
f997a5cf>] rt2x00queue_update_beacon_locked+0x5f/0xb0 [rt2x00lib]
[<
f997a64d>] rt2x00queue_update_beacon+0x2d/0x50 [rt2x00lib]
[<
f9977e3a>] rt2x00mac_bss_info_changed+0x1ca/0x200 [rt2x00lib]
[<
f9977c70>] ? rt2x00mac_remove_interface+0x70/0x70 [rt2x00lib]
[<
f98e4dd0>] ieee80211_bss_info_change_notify+0xe0/0x1d0 [mac80211]
[<
f98ef7b8>] __ieee80211_sta_join_ibss+0x3b8/0x610 [mac80211]
[<
c0496ab4>] ? mark_held_locks+0x64/0xc0
[<
c0440012>] ? virt_efi_query_capsule_caps+0x12/0x50
[<
f98efb09>] ieee80211_sta_join_ibss+0xf9/0x140 [mac80211]
[<
f98f0456>] ieee80211_ibss_work+0x416/0x470 [mac80211]
[<
c0496d8b>] ? trace_hardirqs_on+0xb/0x10
[<
c077683b>] ? skb_dequeue+0x4b/0x70
[<
f98f207f>] ieee80211_iface_work+0x13f/0x230 [mac80211]
[<
c045cf99>] ? process_one_work+0x109/0x3f0
[<
c045d015>] process_one_work+0x185/0x3f0
[<
c045cf99>] ? process_one_work+0x109/0x3f0
[<
f98f1f40>] ? ieee80211_teardown_sdata+0xa0/0xa0 [mac80211]
[<
c045ed86>] worker_thread+0x116/0x270
[<
c045ec70>] ? manage_workers+0x1e0/0x1e0
[<
c0462f64>] kthread+0x84/0x90
[<
c0462ee0>] ? __init_kthread_worker+0x60/0x60
[<
c083d382>] kernel_thread_helper+0x6/0x10
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Joe Perches [Wed, 30 May 2012 20:25:56 +0000 (13:25 -0700)]
brcmfmac: Fix likely misuse of | for &
Using | with a constant is always true.
Likely this should have be &.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Joe Perches [Wed, 30 May 2012 20:25:54 +0000 (13:25 -0700)]
mac80211: Fix likely misuse of | for &
Using | with a constant is always true.
Likely this should have be &.
cc: Ben Greear <greearb@candelatech.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Wed, 30 May 2012 13:32:24 +0000 (15:32 +0200)]
mac80211: add missing rcu_read_lock/unlock in agg-rx session timer
Fixes a lockdep warning:
===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
net/mac80211/agg-rx.c:148 invoked rcu_dereference_check() without protection!
other info that might help us debug this:
rcu_scheduler_active = 1, debug_locks = 1
1 lock held by arecord/11226:
#0: (&tid_agg_rx->session_timer){+.-...}, at: [<
ffffffff81066bb0>] call_timer_fn+0x0/0x360
stack backtrace:
Pid: 11226, comm: arecord Not tainted 3.1.0-kml #16
Call Trace:
<IRQ> [<
ffffffff81093454>] lockdep_rcu_dereference+0xa4/0xc0
[<
ffffffffa02778c9>] sta_rx_agg_session_timer_expired+0xc9/0x110 [mac80211]
[<
ffffffffa0277800>] ? ieee80211_process_addba_resp+0x220/0x220 [mac80211]
[<
ffffffff81066c3a>] call_timer_fn+0x8a/0x360
[<
ffffffff81066bb0>] ? init_timer_deferrable_key+0x30/0x30
[<
ffffffff81477bb0>] ? _raw_spin_unlock_irq+0x30/0x70
[<
ffffffff81067049>] run_timer_softirq+0x139/0x310
[<
ffffffff81091d5e>] ? put_lock_stats.isra.25+0xe/0x40
[<
ffffffff810922ac>] ? lock_release_holdtime.part.26+0xdc/0x160
[<
ffffffffa0277800>] ? ieee80211_process_addba_resp+0x220/0x220 [mac80211]
[<
ffffffff8105cb78>] __do_softirq+0xc8/0x3c0
[<
ffffffff8108f088>] ? tick_dev_program_event+0x48/0x110
[<
ffffffff8108f16f>] ? tick_program_event+0x1f/0x30
[<
ffffffff81153b15>] ? putname+0x35/0x50
[<
ffffffff8147a43c>] call_softirq+0x1c/0x30
[<
ffffffff81004c55>] do_softirq+0xa5/0xe0
[<
ffffffff8105d1ee>] irq_exit+0xae/0xe0
[<
ffffffff8147ac6b>] smp_apic_timer_interrupt+0x6b/0x98
[<
ffffffff81479ab3>] apic_timer_interrupt+0x73/0x80
<EOI> [<
ffffffff8146aac6>] ? free_debug_processing+0x1a1/0x1d5
[<
ffffffff81153b15>] ? putname+0x35/0x50
[<
ffffffff8146ab2b>] __slab_free+0x31/0x2ca
[<
ffffffff81477c3a>] ? _raw_spin_unlock_irqrestore+0x4a/0x90
[<
ffffffff81253b8f>] ? __debug_check_no_obj_freed+0x15f/0x210
[<
ffffffff81097054>] ? lock_release_nested+0x84/0xc0
[<
ffffffff8113ec55>] ? kmem_cache_free+0x105/0x250
[<
ffffffff81153b15>] ? putname+0x35/0x50
[<
ffffffff81153b15>] ? putname+0x35/0x50
[<
ffffffff8113ed8f>] kmem_cache_free+0x23f/0x250
[<
ffffffff81153b15>] putname+0x35/0x50
[<
ffffffff81146d8d>] do_sys_open+0x16d/0x1d0
[<
ffffffff81146e10>] sys_open+0x20/0x30
[<
ffffffff81478f42>] system_call_fastpath+0x16/0x1b
Reported-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Thu, 31 May 2012 13:09:27 +0000 (15:09 +0200)]
mac80211: clean up remain-on-channel on interface stop
When any interface goes down, it could be the one that we
were doing a remain-on-channel with. We therefore need to
cancel the remain-on-channel and flush the related work
structs so they don't run after the interface has been
removed or even destroyed.
It's also possible in this case that an off-channel SKB
was never transmitted, so free it if this is the case.
Note that this can also happen if the driver finishes
the off-channel period without ever starting it.
Cc: stable@kernel.org
Reported-by: Nirav Shah <nirav.j2.shah@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 30 May 2012 12:59:36 +0000 (14:59 +0200)]
mac80211_hwsim: advertise interface combinations
Enforcing interface combinations broke uses of hwsim
with multiple virtual interfaces. Advertise that all
combinations are possible to fix this.
Reported-by: Nirav Shah <nirav.j2.shah@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / log