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Rami Rosen [Sat, 8 Dec 2012 05:08:25 +0000 (07:08 +0200)]
Bluetooth: Remove unnecessary include l2cap.h
This patch removes unnecessary include of <net/bluetooth/l2cap.h>
in bluetooth/bnep/core.c.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Avinash Patil [Fri, 4 Jan 2013 05:21:32 +0000 (21:21 -0800)]
mwifiex: use map/unmap APIs in TX and RX to reduce memcpy
This patch is an enhacement to mwifiex_pcie driver to use
map/unmap PCI memory APIs. This reduces one memcpy each in TX
path and RX path, and enhances throughput.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Avinash Patil [Fri, 4 Jan 2013 05:21:31 +0000 (21:21 -0800)]
mwifiex: flush TX ring for PCIe after disconnect or bss stop
This patch adds handler to clean PCIe TX rings after disconnect
or bss stop is called for PCIe based mwifiex driver.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Avinash Patil [Fri, 4 Jan 2013 05:21:30 +0000 (21:21 -0800)]
mwifiex: use pci_alloc/free_consistent APIs for PCIe
This patch uses pci_alloc_consistent and pci_free_consistent
APIs for mwifiex_pcie driver. Consistent DMA memory is allocated
for TX, RX and event rings. Command buffer and command response
buffer also uses map/unmap memory APIs to download commands and
get command responses.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Avinash Patil [Fri, 4 Jan 2013 05:21:29 +0000 (21:21 -0800)]
mwifiex: add init_fw_port handler for PCIe interface
This patch adds support for init_fw_port handler for PCIe
interface, which resets RXBD read pointer for PCIe.
This fixes issue where RX doesn't work until some TX from
driver happens.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Avinash Patil [Fri, 4 Jan 2013 05:21:28 +0000 (21:21 -0800)]
mwifiex: access interrupt status only while holding lock
This patch fixes a bug for few instances where PCIe interrupt
status variable is accessed without holding spin lock.
This can result into missing interrupts.
Fix this by copying interrupt status to a local variable and
then using it for calling specific routine.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hauke Mehrtens [Thu, 3 Jan 2013 23:51:25 +0000 (00:51 +0100)]
bcma: mips: rename oldirqflag to irqinitmask
The new name better matches the use of this variable.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hauke Mehrtens [Thu, 3 Jan 2013 23:51:24 +0000 (00:51 +0100)]
bcma: mips: remove assigned_irqs from structure
This member is not needed any more.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hauke Mehrtens [Thu, 3 Jan 2013 23:51:23 +0000 (00:51 +0100)]
bcma: mips: show also disabled IRQs
Some cores do not have a IRQ assigned and some do not support when an
IRQ is assigned to them, this is now handled and printed out in the
code.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hauke Mehrtens [Thu, 3 Jan 2013 23:51:22 +0000 (00:51 +0100)]
bcma: mips: make some info messages debug messages
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hauke Mehrtens [Thu, 3 Jan 2013 23:51:21 +0000 (00:51 +0100)]
bcma: mips: explicit assign IRQ numbers
The assignment of the IRQs to the cores of the chips by iterating over
the cores is complicated and causes problems with SoC like the BCM4706
with two GMAC core where just one should get a dedicated IRQ number.
Now the code assigns the same IRQs to the cores as the code from the
Broadcom SDK does. If the SoC is not know the current assigned IRQs are
only read out and an error message is printed.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hauke Mehrtens [Thu, 3 Jan 2013 23:51:20 +0000 (00:51 +0100)]
bcma: make bcma_find_core_unit() accessible
This bcma_find_core_unit() is needed by the mips driver in the next
patch.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Thu, 3 Jan 2013 09:25:48 +0000 (14:55 +0530)]
ath9k_hw: Fix calibration for AR9340
TX_IQ_ON_AGC_CAL should not be enabled for AR9340. TX-IQ calibration
is run as part of AGC calibration only for AR9485, AR9462 and AR9565.
For the others (AR9300, AR9330, AR9340), TX-IQ cal is done independent
of AGC-cal.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Yogesh Ashok Powar [Thu, 3 Jan 2013 07:54:44 +0000 (13:24 +0530)]
mwl8k: bump firmware API to 3
New firmware is required to support
a) Add support for additional ampdu streams
b) Handle corresponding watchdog events to destroy ampdu streams
Bumping firmware API version by one.
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Yogesh Ashok Powar [Thu, 3 Jan 2013 07:54:19 +0000 (13:24 +0530)]
mwl8k: Handle watchdog event with highest prioriry
Currently, command path waits till all the tx host queues
are empty. Whenever watchdog event is raised, firmware
expects driver to destroy ampdu queues immediately.
This requires corresponding commands i.e.
mwl8k_cmd_get_watchdog_bitmap and mwl8k_destroy_ba to be
sent without waiting for the tx queues to be completely
empty.
Use "watchdog_event_pending" to ensure the above mentioned
two commands are sent down immediately.
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Yogesh Ashok Powar [Thu, 3 Jan 2013 07:54:03 +0000 (13:24 +0530)]
mwl8k: Handle Watchdog events for the new ampdu streams
With more ampdu streams, we need to handle watchdog
events for the new ampdu streams. Handle these
events appropriately.
Earlier mwl8k_cmd_get_watchdog_bitmap used to return
only one stream index and hence bitwise operations
on the return value were not required. Now the function
returns a bitmap with different bits are mapped with
different stream indices.
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Yogesh Ashok Powar [Thu, 3 Jan 2013 07:53:33 +0000 (13:23 +0530)]
mwl8k: changing mwl8k_destroy_ba prototype
Currently, mwl8k_ampdu_stream is passed as one of the
argument to the function mwl8k_destroy_ba. Instead of
this pass only the stream index. This will be helpful
during watchdog event handling when bitmap of stream
indices are received.
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Yogesh Ashok Powar [Thu, 3 Jan 2013 07:52:56 +0000 (13:22 +0530)]
mwl8k: Enable support to support additional ampdu streams
Currently, we have 2 ampdu streams that can be created
simultaneously. Firmware is capable of supporting
additional streams. Add support to use these streams.
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Yogesh Ashok Powar [Thu, 3 Jan 2013 07:51:25 +0000 (13:21 +0530)]
mwl8k: set ack policy to normal
Set ACK policy to NORMAL when its not going to
be an AMPDU packet.
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Yogesh Ashok Powar [Thu, 3 Jan 2013 07:50:47 +0000 (13:20 +0530)]
mwl8k: Remove redundant txq_idx
Ampdu stream index can be derived from stream->idx.
So we no longer need stream->txq_idx, hence removing it.
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Thu, 3 Jan 2013 06:51:23 +0000 (12:21 +0530)]
ath9k_hw: Remove TEMP_COMP_CAL
This is not enabled for any chip and is unused.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Thu, 3 Jan 2013 06:51:21 +0000 (12:21 +0530)]
ath9k_hw: Enable calibration types in init_cal_settings
Doing this in ath9k_hw_fill_cap_info() is odd and it's
cleaner to do this in the init function for calibration.
Also, setup the supported calibration type in init_cal_settings.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Avinash Patil [Thu, 3 Jan 2013 00:56:01 +0000 (16:56 -0800)]
mwifiex: parse WMM IEs from hostapd for mwifiex AP
This patch adds support for parsing WMM IEs from hostapd
and setting them to FW via sys configure command.
Patch also sets wiphy flag to advertise AP uAPSD support.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Amitkumar Karwar [Thu, 3 Jan 2013 00:56:00 +0000 (16:56 -0800)]
mwifiex: use correct htcapinfo for HT20 ibss network
It is observed that same htcapinfo ie is included in beacon for
HT20, HT40+ and HT40- ibss networks. This patch makes sure that
we will not advertise 40Mhz flags while creating/joining ibss
network in HT20 mode.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sasha Levin [Thu, 3 Jan 2013 00:23:01 +0000 (16:23 -0800)]
wireless: mwifiex: remove unreachable paths
We know 'firmware' is non-NULL from the beginning of mwifiex_prog_fw_w_helper,
remove all !firmware paths from the rest of the function.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Alexey Khoroshilov [Wed, 2 Jan 2013 20:06:47 +0000 (00:06 +0400)]
p54pci: don't return zero on failure paths in p54p_probe()
If pci_set_dma_mask() or pci_set_consistent_dma_mask() fails in p54p_probe(),
it breaks off initialization, deallocates all resources, but returns zero.
Similar issue is if check for returned value of pci_resource_len() fails.
The patch implements proper error code propagation.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hante Meuleman [Wed, 2 Jan 2013 14:22:51 +0000 (15:22 +0100)]
brcmfmac: Update init code routines from interface up.
On interface up dongle gets inialized. Move UP command to common
routine and update these common init routines using ifp.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hante Meuleman [Wed, 2 Jan 2013 14:22:50 +0000 (15:22 +0100)]
brcmfmac: Removing obsolete variables and inline functions.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hante Meuleman [Wed, 2 Jan 2013 14:22:49 +0000 (15:22 +0100)]
brcmfmac: Return correct error on netdev xmit.
Netdev xmit routine brcfm_netdev_start_xmit was defined
incorrectly and used wrong return codes. Always eat the
packet and return ok. Remove drvr_up check since it is not
relevant.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hante Meuleman [Wed, 2 Jan 2013 14:22:48 +0000 (15:22 +0100)]
brcmfmac: Remove unused caching dongle error.
CDC errors are retained. However, it is never used so it can
be removed.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arend van Spriel [Wed, 2 Jan 2013 14:22:47 +0000 (15:22 +0100)]
brcmfmac: remove unnecessary curly braces in dhd_attach()
Stumbled into a curly braces used for if statement with only
one conditional statement. Removing them.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arend van Spriel [Wed, 2 Jan 2013 14:22:46 +0000 (15:22 +0100)]
brcmfmac: cleanup netdev transmit callback
The header of the ethernet packet is processed conditionally, but
the check is wrong as it checks skb length is at least ETH_ALEN. It
should check it is at least sizeof struct ethhdr instead.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arend van Spriel [Wed, 2 Jan 2013 14:22:45 +0000 (15:22 +0100)]
brcmfmac: remove unused event related definitions
The driver had some global definitions in dhd.h to map event
identifiers to event names. With redesign of firmware event
processing this has all moved to fweh module so these definitions
can be removed.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hante Meuleman [Wed, 2 Jan 2013 14:22:44 +0000 (15:22 +0100)]
brcmfmac: Use dedicated trace level for CDC.
CDC debug is partly done with TRACE and partly with CTL, however
CDC hardly ever needs debugging. Use dedicated level CDC and
replace TRACE and CTL in dhd_cdc with that.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arend van Spriel [Wed, 2 Jan 2013 14:22:43 +0000 (15:22 +0100)]
brcmfmac: remove brcmf_proto_hdrpull() from bus interface
The use of the function brcmf_proto_hdrpull() is moved to the
common part of the driver and consequently it can be removed
from the bus interface.
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arend van Spriel [Wed, 2 Jan 2013 14:22:42 +0000 (15:22 +0100)]
brcmfmac: remove rx helper function from bus interface
The bus interface provided a wrapper function to pass a single
packet to the common driver part filling a skb queue with one
packet. For clarity the caller now sets up the skb queue and
call the rx bus interface function.
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arend van Spriel [Wed, 2 Jan 2013 20:20:10 +0000 (21:20 +0100)]
brcmfmac: define pr_fmt in one place
Several source files (but not all) define the pr_fmt() macro in exactly
the same way. Instead this commit defines it in a header file so driver
logging is consistent.
Cc: Joe Perches <joe@perches.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arend van Spriel [Wed, 2 Jan 2013 14:22:40 +0000 (15:22 +0100)]
brcmfmac: assure USB dongle firmware is reset upon module unload
Upon unloading the brcmfmac module the USB firmware should be reset
as the device remains powered. The reset assures a known device
state when a new brcmfmac driver load is being done.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hante Meuleman [Wed, 2 Jan 2013 14:22:39 +0000 (15:22 +0100)]
brcmfmac: removed deprecated set_bitrate_mask support
Set bitrate_mask is not desired anymore. The firmware will
determine the correct rates to be used.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hante Meuleman [Wed, 2 Jan 2013 14:22:38 +0000 (15:22 +0100)]
brcmfmac: do not reconfigure refill rx on 0-length packet.
When USB device gets removed rx complete comes with 0-length
packets. Do not refill those packets. In some rare cases it can
cause infinite loop.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Piotr Haber [Wed, 2 Jan 2013 14:22:37 +0000 (15:22 +0100)]
brcmsmac: remove dead code
Dead code after AMPDU restructure.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arend van Spriel [Wed, 2 Jan 2013 14:22:36 +0000 (15:22 +0100)]
brcmsmac: allow user-space setting of interface address
The interface address of the wireless device is determined by
the permanent address stored in the device. This patch allows
it to be overridden from user-space.
Reported-by: Maximilian Engelhardt <maxi@daemonizer.de>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Arend van Spriel [Wed, 2 Jan 2013 14:22:35 +0000 (15:22 +0100)]
brcmsmac: use perimeter lock in add_interface() callback
All callbacks that access driver functions should do that under
perimeter lock protection. The add_interface() callback was lacking
this lock.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Piotr Haber [Wed, 2 Jan 2013 14:22:34 +0000 (15:22 +0100)]
brcmsmac: increase timer reference count for new timers only
On hardware reintialization reference count of
already existing timers would be increased again.
This leads to problems on module unloading.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Gabor Juhos [Sat, 29 Dec 2012 13:51:51 +0000 (14:51 +0100)]
rt2x00: rt2800: convert read_eeprom functions to return an int value
Both the rtt2x00usb_eeprom_read and the ioremap
functions are allowed to fail, however their
return values are not checked in the read_eeprom
functions in the rt2800{pci,usb} drivers.
The patch adds the missing checks, and converts
all read_eeprom functions to return an int value,
so the error values can be propagated up to the
'rt2800_validate_eeprom' function.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith Manoharan [Wed, 26 Dec 2012 06:57:38 +0000 (12:27 +0530)]
ath9k_hw: Remove AR9485 1.0 macro
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Geert Uytterhoeven [Sat, 22 Dec 2012 21:07:14 +0000 (22:07 +0100)]
brcmsmac: initialize morepending in brcms_b_recv()
drivers/net/wireless/brcm80211/brcmsmac/main.c: In function ‘brcms_b_recv’:
drivers/net/wireless/brcm80211/brcmsmac/main.c:7636: warning: ‘morepending’ may be used uninitialized in this function
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Thu, 20 Dec 2012 13:31:53 +0000 (14:31 +0100)]
iwlegacy: allow to enable PS
Power save support was removed from iwlegacy due to possible firmware
crashes problems it cause. I use to plan first inspect code to find
reason of problems, fix them and then allow to enable PS. But
realistically - code inspection will not happen, so let's do it, and
wait for eventual bug reports.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Thu, 20 Dec 2012 13:31:51 +0000 (14:31 +0100)]
iwlegacy: add flush callback
Dump implementation of flush, which just wait until all TX queues
become empty.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Gabor Juhos [Mon, 17 Dec 2012 21:06:08 +0000 (22:06 +0100)]
ath9k: fix column header comments for some initval arrays
Some 3-column initval arrays have wrong comments. The
column of these arrays is indexed by the 'freqIndex'
variable in 'ar5008_hw_process_ini' which only depends
on the actual band.
The 'initvals' tool from 'qca-swiss-army-knife' prints
the correct comment lines for these arrays, since commit
'atheros-initvals: fix comments for non-fastclock 3-column tables'
however the comments were not refreshed in ath9k.
The patch contains no functional changes.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Sat, 22 Dec 2012 14:05:26 +0000 (15:05 +0100)]
carl9170: refactor carl9170_update_beacon
This patch moves parts of carl9170_update_beacon
into separate subroutines, so the parts become
more manageable.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Thu, 20 Dec 2012 01:44:29 +0000 (02:44 +0100)]
carl9170: remove custom NUM_TID and friends
The commit: "mac80211: introduce IEEE80211_NUM_TIDS and use it"
introduced a generic NUM_TID definitions for all everyone.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Mon, 17 Dec 2012 16:05:55 +0000 (17:05 +0100)]
carl9170: disable hw crypto for p2p networks
While the driver supports HW offload in a single
P2P client configuration, it doesn't support HW
offload in the concurrent P2P GO+CLIENT
configuration.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Mon, 17 Dec 2012 15:30:05 +0000 (16:30 +0100)]
carl9170: don't enable hw crypto offload, if the fw doesn't support it
Previously, op_start would set disable_offload always
to false, even if it was set to true by the fw parser.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Mon, 17 Dec 2012 13:54:19 +0000 (14:54 +0100)]
carl9170: Only specify interface combinations if more than one interface is possible
Otherwise carl9170 triggers a warning in cfg80211, from net/wireless/core.c
/* Combinations with just one interface aren't real */
if (WARN_ON(c->max_interfaces < 2))
Note: The number of supported interfaces is set by
the carl9170 firmware. The default number of
supported interfaces for all current firmwares is 2.
Therefore this warning can only be observed with
custom firmwares.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Sun, 16 Dec 2012 00:41:37 +0000 (01:41 +0100)]
carl9170: allow P2P_GO interface creation after P2P_CLIENT
Janusz Dziedzic reported that after a change in wpa_supplicant
["nl80211: Automatically use concurrent P2P if possible"],
carl9170 was no longer able to host a P2P network.
This patch tackles the problem by allowing GO interfaces to be
registered, long after the P2P_CLIENT interface is brought up.
Reported-by: Janusz Dziedzic <janusz.dziedzic@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Sat, 15 Dec 2012 22:21:32 +0000 (23:21 +0100)]
carl9170: import 1.9.7 firmware headers
Import new headers from my firmware branch:
<https://github.com/chunkeey/carl9170fw>
visit our wiki at:
<http://wireless.kernel.org/en/users/Drivers/carl9170.fw>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Sat, 15 Dec 2012 22:18:06 +0000 (23:18 +0100)]
carl9170: advertise support for TDLS
Based on a quick test [ath9k and carl9170],
TDLS seemed to be working fine. And while
we are at it, let's move the wiphy feature
flag set from carl9170_alloc into a single
place in carl9170_fw.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Wed, 12 Dec 2012 12:14:23 +0000 (13:14 +0100)]
ath9k_hw: use the devres API for allocations
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Wed, 12 Dec 2012 12:14:22 +0000 (13:14 +0100)]
ath9k: use the devres API for allocations/mappings
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Wed, 12 Dec 2012 05:30:55 +0000 (06:30 +0100)]
rt2800: refactor RFCSR initialization
rt2800_init_rfcsr() is too big, split RF initialization into per chip
functions. Code will change, but we should setup the same values onto
RF registers and in the same order as before.
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Mon, 7 Jan 2013 19:57:43 +0000 (14:57 -0500)]
Merge branch 'for-john' of git://git./linux/kernel/git/iwlwifi/iwlwifi-next
Emmanuel Grumbach [Mon, 31 Dec 2012 11:46:42 +0000 (13:46 +0200)]
iwlwifi: always check that grab_nic_access succeeds
This allows to let sparse check that the NIC access is
always released.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Eytan Lifshitz [Thu, 27 Dec 2012 22:10:36 +0000 (00:10 +0200)]
iwlwifi: fix spelling and value in LED registers.
Fix typo in the macro name and the wrong value.
Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 27 Dec 2012 21:58:21 +0000 (22:58 +0100)]
iwlwifi: move some PCIe calls to better places
Synchronizing the IRQ is pointless when we will
then enable the RF-Kill interrupt again, but is
needed before we free it and the data needed to
handle IRQs; move it to the free function.
Simiarly, cancelling the replenish work struct
can move to the function that frees the RX data
structures.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 27 Dec 2012 22:08:06 +0000 (23:08 +0100)]
iwlwifi: request IRQ only once
There's no need to request the IRQ every time the
device is started, we can request it just once.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Emmanuel Grumbach [Mon, 31 Dec 2012 11:15:36 +0000 (13:15 +0200)]
iwlwifi: don't treat a bool as an error code
iwl_trans_grab_nic_access returns a boolean. So ret should
explicitely set to an error code and not rely on the value
returned by iwl_trans_grab_nic_access.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Emmanuel Grumbach [Mon, 24 Dec 2012 12:27:11 +0000 (14:27 +0200)]
iwlwifi: virtualize SRAM access
Different transports implement the access to the SRAM in
different ways. Virtualize it.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Emmanuel Grumbach [Mon, 24 Dec 2012 13:01:24 +0000 (15:01 +0200)]
iwlwifi: virtualize iwl_{grab,release}_nic_access
Since different transports have different ways to wake the
up the NIC, we need to virtualize it.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 28 Dec 2012 11:27:43 +0000 (12:27 +0100)]
iwlwifi: use __packed
Use __packed instead of __attribute__((packed)).
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Emmanuel Grumbach [Mon, 24 Dec 2012 09:10:43 +0000 (11:10 +0200)]
iwlwifi: let the op_mode run a FW while in RFKILL
In some cases, the fw should run even if the NIC is in
RFKILL. Make the API more flexible to allow that.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Emmanuel Grumbach [Mon, 24 Dec 2012 14:51:22 +0000 (16:51 +0200)]
iwlwifi: don't verify fw after download
No need to verify that the fw has been written correctly.
In case it hasn't, we won't get ALIVE notification.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Emmanuel Grumbach [Tue, 18 Dec 2012 08:47:28 +0000 (10:47 +0200)]
iwlwifi: clean up code in AGG
If we take a pointer to the tid_data, then use it.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Emmanuel Grumbach [Wed, 5 Dec 2012 13:07:54 +0000 (15:07 +0200)]
iwlwifi: make the BC table layout configurable
This is needed for newer NICs.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 27 Dec 2012 16:32:09 +0000 (17:32 +0100)]
cfg80211: disallow more station changes
The following changes are invalid and should be
disallowed when a station already exists:
* supported rates changes, except for TDLS peers
* listen interval changes
* HT capability changes
Disallow them and also update a mac80211 comment
explaining how they would be racy.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 28 Dec 2012 14:01:57 +0000 (15:01 +0100)]
mac80211: unset peer's HT 40 MHz support if not usable
When an interface is configured to a 20 MHz channel
and the device as well as the peer are 40 MHz capable
the HT capabilities of the peer are not restricted to
20 MHz, even though they're supposed to be restricted
to the currently possible capabilities.
Unset the 40 MHz HT capability bits in this case.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 28 Dec 2012 11:22:02 +0000 (12:22 +0100)]
wireless: use __aligned
Use __aligned(...) instead of __attribute__((aligned(...)))
in mac80211 and cfg80211.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 28 Dec 2012 11:12:10 +0000 (12:12 +0100)]
mac80211: support HT notify channel width action
Support the HT notify channel width action frame
to update the rate scaling about the bandwidth
the peer can receive in.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 28 Dec 2012 11:00:40 +0000 (12:00 +0100)]
wireless: use __packed in ieee80211.h
Use __packed instead of __attribute__((packed)).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 18 Jul 2012 11:51:25 +0000 (13:51 +0200)]
mac80211: split TX aggregation stop action
When TX aggregation is stopped, there are a few
different cases:
- connection with the peer was dropped
- session stop was requested locally
- session stop was requested by the peer
- connection was dropped while a session is stopping
The behaviour in these cases should be different, if
the connection is dropped then the driver should drop
all frames, otherwise the frames may continue to be
transmitted, aggregated in the case of a locally
requested session stop or unaggregated in the case of
the peer requesting session stop.
Split these different cases so that the driver can
act accordingly; however, treat local and remote stop
the same way and ask the driver to not send frames as
aggregated packets any more.
In the case of connection drop, the stop callback the
driver is otherwise supposed to call is no longer
required.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 28 Dec 2012 08:43:03 +0000 (09:43 +0100)]
mac80211: move ieee80211_remove_tid_tx function
To call it from ___ieee80211_stop_tx_ba_session,
move the function and dependencies up.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 18 Jul 2012 12:12:44 +0000 (14:12 +0200)]
mac80211: split out aggregation TX removal
Create the function ieee80211_remove_tid_tx to call
it from ___ieee80211_stop_tx_ba_session later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 18 Jul 2012 11:31:31 +0000 (13:31 +0200)]
mac80211: split aggregation stop by reason
The initiator/tx doesn't really identify why an
aggregation session is stopped, give a reason
for stopping that more clearly identifies what's
going on. This will help tell the driver clearly
what is expected of it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 26 Oct 2012 15:53:44 +0000 (17:53 +0200)]
nl80211/mac80211: support full station state in AP mode
Today, stations are added already associated. That is
inefficient if, for example, the driver has no room
for stations any more because then the station will
go through the entire auth/assoc handshake, only to
be kicked out afterwards.
To address this a bit better, at least with drivers
using the new station state callback, allow hostapd
to add stations in unauthenticated mode, just after
receiving the AUTH frame, before even replying. Thus
if there's no more space at that point, it can send
a negative auth frame back. It still needs to handle
later state transition errors though, of course.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 20 Dec 2012 17:23:01 +0000 (18:23 +0100)]
cfg80211: move some AP code to right file
Some AP code ended up in mlme.c as ap.c didn't
exist when it was written, move it now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 7 Dec 2012 12:06:48 +0000 (13:06 +0100)]
mac80211: restrict assoc request VHT capabilities
In interoperability testing some APs showed bad behaviour
if some of the VHT capabilities of the station are better
than their own. Restrict the assoc request parameters
- beamformee capabable,
- RX STBC and
- RX MCS set
to the subset that the AP can support.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Luis R. Rodriguez [Wed, 19 Dec 2012 18:53:04 +0000 (10:53 -0800)]
cfg80211: move world roaming check for beacon hints
We should not add new beacon hints even if the wiphy
is not world roaming. Without this we were always adding
a beacon hint if not world roaming for every non world
roaming wiphy interface.
Tested-by: Ben Greear <greearb@candelatech.com>
Reported-by: Ben Greear <greearb@candelatech.com>
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
[fix locking]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Luis R. Rodriguez [Wed, 19 Dec 2012 18:53:03 +0000 (10:53 -0800)]
cfg80211: move reg_is_world_roaming()
This will be used later by other code. This has no
functional change.
Tested-by: Ben Greear <greearb@candelatech.com>
Reported-by: Ben Greear <greearb@candelatech.com>
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Luis R. Rodriguez [Wed, 19 Dec 2012 18:53:02 +0000 (10:53 -0800)]
cfg80211: do not process beacon hints if one is already queued
Regulatory beacon hints are used to help with world roaming
and as it is right now we learn from a beacon hint processed
on one wiphy to all other wiphys. The processing of beacon
hints however is scheduled and if we have a lot of interfaces
we may hit the case that we'll queue a the same beacon hint
many times until its processed.
To avoid this do a lookup on the queued up beacon hints prior
to adding a new beacon hint. If the beacon hint is removed
from the pending reg beacon hint list then it would be processed
and we'd ensure all wiphys would have learned from it, if its
on the pending reg beacon list we'd now find it prior to it
being processed.
Tested-by: Ben Greear <greearb@candelatech.com>
Reported-by: Ben Greear <greearb@candelatech.com>
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 14 Dec 2012 13:34:25 +0000 (14:34 +0100)]
mac80211: assign bss_conf.bssid only once
Instead of checking every time bss_info_changed is called,
assign the pointer once depending on the interface type
and then leave it untouched until the interface type is
changed. This makes the ieee80211_bss_info_change_notify()
now a simple wrapper to call the driver only.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 14 Dec 2012 13:22:10 +0000 (14:22 +0100)]
mac80211: further simplify ieee80211_bss_info_change_notify
The special case in the function isn't really needed,
instead make the suspend code a bit better and also
easier to understand and move the warning into the
driver op wrapper inline.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 14 Dec 2012 13:17:26 +0000 (14:17 +0100)]
mac80211: reconfig bss_info_changed only if beaconing
For AP/IBSS/mesh interfaces, call the driver to reconfigure
bss_info_changed only if the interface was beaconing before
suspend, otherwise we call the driver and it might interpret
the change as going from enabled to disabled.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 14 Dec 2012 13:06:28 +0000 (14:06 +0100)]
mac80211: track enable_beacon explicitly
Instead of calculating in ieee80211_bss_info_change_notify()
whether beaconing should be enabled or not, set it in the
correct places in the callers. This simplifies the logic in
this function at the expense of offchannel, but is also more
robust.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 13 Dec 2012 16:42:30 +0000 (17:42 +0100)]
mac80211: fix channel context iteration
During suspend/resume channel contexts might be
iterated even if they haven't been re-added to
the driver, keep track of this and skip them in
iteration. Also use the new status for sanity
checks.
Also clarify the fact that during HW restart all
contexts are iterated over (thanks Eliad.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 13 Dec 2012 16:16:45 +0000 (17:16 +0100)]
mac80211: clean up association better in suspend
When suspending, bss_info_changed() is called to
disable beacons, but managed mode interfaces are
simply removed (bss_info_changed() is called with
"no change" only). This can lead to problems.
To fix this and copy the BSS configuration, clear
it during suspend and restore it on resume.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 13 Dec 2012 15:47:42 +0000 (16:47 +0100)]
mac80211: clean up ieee80211_quiesce
It's a bit odd that there's a return value that only
depends on the iftype, move that logic out of the
function into the only caller that needs it.
Also, since the quiescing could stop timers that
trigger the sdata work, move the sdata work cancel
into the function and after the actual quiesce.
Finally, there's no need to call it on interfaces
that are down, so don't.
Change-Id: I1632d46d21ba3558ea713d035184f1939905f2f1
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Emmanuel Grumbach [Mon, 10 Dec 2012 14:19:13 +0000 (16:19 +0200)]
mac82011: use frame control to differentiate probe resp/beacon
The probe response/beacon management frame RX code passes a
bool parameter to differentiate beacons and probe responses.
This is useless since we have the frame and can thus use its
frame control field. Moreover it is buggy since there is one
call to ieee80211_rx_bss_info with a beacon frame that is
indicated as a probe response, which is also fixed by using
the frame control field, so do that.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 7 Dec 2012 11:45:06 +0000 (12:45 +0100)]
mac80211: fix ieee80211_ie_build_vht_cap indentation
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 13 Dec 2012 23:19:08 +0000 (00:19 +0100)]
cfg80211: adjacent 80+80 MHz channel segments are invalid
In that case, it's really a 160 MHz channel, so disallow
this configuration.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 14 Dec 2012 13:56:03 +0000 (14:56 +0100)]
mac80211: optimise AP stop RCU handling
If there are VLANs, stopping an AP is inefficient as it
calls rcu_barrier() once for each interface (the VLANs
and the AP itself). Optimise this by moving rcu_barrier()
out of the station cleanups and calling it only once for
all interfaces combined.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>