iwlwifi: move rx handlers code to iwl-rx.c

Put generic rx_handlers (except iwlagn_rx_reply_compressed_ba) to
iwl-rx.c . Make functions static and change prefix from iwlagn_ to
iwl_ . Beautify iwl_setup_rx_handlers and do some other minor coding
style changes.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: Remove redundant preamble and RTS flag setup in minstrel_ht

mac80211 does the same afterwards anyway. Hence, just drop
this redundant code.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Fix txq memory address printing in debugfs.

No use printing addresses of pointers, just print the
pointers themselves.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Remove unused rt2x00queue_get_queue function.

Now that all accesses to the data_queue structures is done via the specialized
rt2x00queue_get_tx_queue function or via direct accesses, there is no
need for the rt2x00queue_get_queue function anymore, so remove it.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Optimize getting the beacon queue structure.

In the spirit of optimizing the code to get the queue structure of TX queues,
also optimize the code to get beacon queues. We can simply use the bcn queue
field of the rt2x00_dev structure instead of using the rt2x00queue_get_queue
function.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Include ATIM queue support in rt2x00queue_get_tx_queue.

The ATIM queue is considered to be a TX queue by the drivers that support
the queue. Therefore include support for the ATIM queue to the
rt2x00queue_get_tx_queue function so that the drivers that support the ATIM
queue can also use that function.

Add the support in such a way that drivers that do not support the ATIM
queue are not penalized in their efficiency.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Don't treat ATIM queue as second beacon queue.

Current code for the atim queue is strange, as it is considered in the
rt2x00_dev structure as a second beacon queue.
Normalize this by letting the atim queue have its own struct data_queue
pointer in the rt2x00_dev structure.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Fix comment in rt2800pci

We don't use interrupt threads anymore. Fix the comment.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Revise irqmask locking for PCI devices

The PCI device irqmask is locked by a spin_lock. Currently
spin_lock_irqsave is used everywhere. To reduce the locking overhead
replace spin_lock_irqsave in hard irq context with spin_lock and in
soft irq context with spin_lock_irq.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Remove now unused crypto.aid field

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Fix rt2800 key assignment in multi bssid setups

When setting up multiple BSSIDs in AP mode on an rt2800pci device we
previously used the STAs AID to select an appropriate key slot. But
since the AID is per VIF we can end up with two STAs having the same AID
and thus using the same key index. This resulted in one STA overwriting
the key information of another STA.

Fix this by simply searching for the next unused entry in the pairwise
key table.

Also bring the key table init in sync with deleting keys by initializing
the key table entries to 0 instead of 1.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Use an enum instead of u16 for the rate_mode TX descriptor field

This makes the code less error-prone.

Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Don't call ieee80211_get_tx_rate for MCS rates

ieee80211_get_tx_rate is not valid for HT rates. Hence, restructure the
TX desciptor creation to be aware of MCS rates. The generic TX desciptor
creation now cares about the rate_mode (CCK, OFDM, MCS, GF).

As a result, ieee80211_get_tx_rate gets only called for legacy rates.

Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Move TX descriptor field "ifs" into plcp substruct

"ifs" is only used by no-HT devices. Move it into the plcp substruct and
fill in the value only for no-HT devices.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Optimize TX descriptor memory layout

Some fields only need to be u8 and for ifs and txop we can use the
already available enums.

Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Optimize TX descriptor handling

HT and no-HT rt2x00 devices use a partly different TX descriptor.
Optimize the tx desciptor memory layout by putting the PLCP and HT
substructs into a union and introduce a new driver flag to decide which
TX desciptor format is used by the device.

This saves us the expensive PLCP calculation fOr HT devices and the HT
descriptor setup on no-HT devices.

Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Generate sw sequence numbers only for devices that need it

Newer devices like rt2800* own a hardware sequence counter and thus
don't need to use a software sequence counter at all. Add a new driver
flag to shortcut the software sequence number generation on devices that
don't need it.

rt61pci, rt73usb and rt2800* seem to make use of a hw sequence counter
while rt2400pci and rt2500* need to do it in software.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Use unlikely for unexpected error condition in rt2x00_mac_tx

rt2x00queue_write_tx_frame is unlikely to fail. Tell the compiler.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Add unlikely macro to special case tx status handling

This special case shouldn't happen very often. Only if a frame that
is not intended to be aggregated ends up in an AMPDU _and_ was intended
to be sent at a different MCS rate as the aggregate. Hence, using
unlikely is justified.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Remove useless NULL check

Since tx_info->control.vif was already accessed before it cant't be NULL
here.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Make use of unlikely during tx status processing

These conditions are unlikely to happen, tell the compiler.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Optimize calls to rt2x00queue_get_queue

In some cases (tx path for example) we don't need to check for non-tx
queues in rt2x00queue_get_queue. Hence, introduce a new method
rt2x00queue_get_tx_queue that is only valid for tx queues and use it in
places where only tx queues are valid.

Furthermore, this new method is quite short and as such can be inlined
to avoid the function call overhead.

This only converts the txdone functions of drivers that don't use an ATIM
queue and the generic tx path.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: fix whitespace damage in the rt2800 specific code

The rt2800 specific code contains a lots of whitespace damage caused by
the commit 'rt2x00: Add support for RT5390 chip'.

This patch fixes those whitespace errors.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

b43: N-PHY: rev3+: implement gain ctl workarounds

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

b43: N-PHY: rev3+: add tables with gain ctl workarounds

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

b43: N-PHY: rev3+: correct switching analog core

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

lib-average: Make config option selectable

Make CONFIG_AVERAGE selectable for out-of-tree users
such as compat-wireless.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: Read noise floor only for available chains for AR9003

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Add a debugfs interface to dump chip registers

/<debugfs_root>/ieee80211/phyX/ath9k/regdump is the interface
to dump the registers.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtl8187: Change rate-control feedback

The driver for the RTL8187L chips returns IEEE80211_TX_STAT_ACK for all
packets, even if the maximum number of retries was exhausted. In addition
it fails to setup max_rates in the ieee80211_hw struct, This behavior
may be responsible for the problems noted in Bug 14168. As the bug is very
old, testers have not been found, and I do not have the case where the
indicated signal is less than -70 dBm.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Cc: Stable <stable@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtlwifi: usb parts should depend on CONFIG_USB

ERROR: "usb_unanchor_urb" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
ERROR: "usb_control_msg" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
ERROR: "usb_submit_urb" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
ERROR: "usb_get_dev" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
ERROR: "usb_kill_anchored_urbs" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
ERROR: "usb_put_dev" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
ERROR: "usb_free_urb" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
ERROR: "usb_anchor_urb" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
ERROR: "usb_alloc_urb" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
make[2]: *** [__modpost] Error 1
make[1]: *** [modules] Error 2
make: *** [sub-make] Error 2

The USB-part of rtlwifi should depend on CONFIG_USB.  This also
corrects the existing check for CONFIG_PCI to build pci.o.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Merge branch 'wireless-next-2.6' of git://git./linux/kernel/git/iwlwifi/iwlwifi-2.6

Merge branch 'for-linville' of git://git./linux/kernel/git/luca/wl12xx

Merge branch 'master' of git://git./linux/kernel/git/padovan/bluetooth-next-2.6

iwlagn: report correct temperature for WiFi/BT devices.

The temperature reported by 'cat /sys/class/net/wlan?/device/temperature'
is incorrect for devices with BT capability.  Report the value from the
correct statistics structure.  Tested with 130, 100, 6205 and 5300.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

wl12xx: Correctly set up protection if non-GF STAs are present

Set the gf_protection bit when calling ACX_HT_BSS_OPERATION according
to the GF bit passed by mac80211 in ht_operation_mode.

[Added a proper commit message -- Luca]

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: wakeup chip from ELP during scan

Commands are sometimes sent to FW on scan completion. Make sure the chip
is awake to receive them. Sending commands while the chip is in ELP
can cause SDIO read errors and/or crash the FW.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: Modify requested number of memory blocks

Tests have shown that the requested number of memory blocks is
sub-optimal. Slightly modify the requested number of memory blocks for
TX.

Signed-off-by: Ido Yariv <ido@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: Avoid redundant TX work

TX might be handled in the threaded IRQ handler, in which case, TX work
might be scheduled just to discover it has nothing to do.

Save a few context switches by cancelling redundant TX work in case TX
is about to be handled in the threaded IRQ handler. Also, avoid
scheduling TX work from wl1271_op_tx if not needed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: Switch to level trigger interrupts

The interrupt of the wl12xx is a level interrupt in nature, since the
interrupt line is not auto-reset. However, since resetting the interrupt
requires bus transactions, this cannot be done from an interrupt
context. Thus, requesting a level interrupt would require to disable the
irq and re-enable it after the HW is acknowledged. Since we now request
a threaded irq, this can also be done by specifying the IRQF_ONESHOT
flag.

Triggering on an edge can be problematic in some platforms, if the
sampling frequency is not sufficient for detecting very frequent
interrupts. In case an interrupt is missed, the driver will hang as the
interrupt line will stay high until it is acknowledged by the driver,
which will never happen.

Fix this by requesting a level triggered interrupt, with the
IRQF_ONESHOT flag.

Signed-off-by: Ido Yariv <ido@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: Switch to a threaded interrupt handler

To achieve maximal throughput, it is very important to react to
interrupts as soon as possible. Currently the interrupt handler wakes up
a worker for handling interrupts in process context. A cleaner and more
efficient design would be to request a threaded interrupt handler.  This
handler's priority is very high, and can do blocking operations such as
SDIO/SPI transactions.

Some work can be deferred, mostly calls to mac80211 APIs
(ieee80211_rx_ni and ieee80211_tx_status). By deferring such work to a
different worker, we can keep the irq handler thread more I/O
responsive. In addition, on multi-core systems the two threads can be
scheduled on different cores, which will improve overall performance.

The use of WL1271_FLAG_IRQ_PENDING & WL1271_FLAG_IRQ_RUNNING was
changed. For simplicity, always query the FW for more pending
interrupts. Since there are relatively long bursts of interrupts, the
extra FW status read overhead is negligible. In addition, this enables
registering the IRQ handler with the ONESHOT option.

Signed-off-by: Ido Yariv <ido@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: Change claiming of the SDIO bus

The SDIO bus is claimed and released for each SDIO transaction. In
addition to the few CPU cycles it takes to claim and release the bus, it
may also cause undesired side effects such as the MMC host stopping its
internal clocks.

Since only the wl12xx_sdio driver drives this SDIO card, it is safe to
claim the SDIO host once (on power on), and release it only when turning
the power off.

This patch was inspired by Juuso Oikarinen's (juuso.oikarinen@nokia.com)
patch "wl12xx: Change claiming of the (SDIO) bus".

Signed-off-by: Ido Yariv <ido@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: Do end-of-transactions transfers only if needed

On newer hardware revisions, there is no need to write the host's
counter at the end of a RX transaction. The same applies to writing the
number of packets at the end of a TX transaction.

It is generally a good idea to avoid unnecessary SDIO/SPI transfers.
Throughput and CPU usage are improved when avoiding these.

Send the host's RX counter and the TX packet count only if needed, based
on the hardware revision.

[Changed WL12XX_QUIRK_END_OF_TRANSACTION to use BIT(0) -- Luca]

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: Reorder data handling in irq_work

The FW has a limited amount of memory for holding frames. In case it
runs out of memory reserved for RX frames, it'll have no other choice
but to drop packets received from the AP. Thus, it is important to
handle RX data interrupts as soon as possible, before handling anything
else.

In addition, since there are enough TX descriptors to go around, it is
better to first send TX frames, and only then handle TX completions.

Fix this by changing the order of function calls in wl1271_irq_work.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: Remove private headers in wl1271_tx_reset

Frames in the tx_frames array include extra private headers, which must
be removed before passing the skbs to ieee80211_tx_status.

Fix this by removing any private headers in wl1271_tx_reset, similar to
how this is done in wl1271_tx_complete_packet.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: Don't rely on runtime PM for toggling power

Runtime PM might not always be enabled. Even if it is enabled in the
running kernel, it can still be temporarily disabled, for instance
during suspend. Runtime PM is opportunistic in nature, and should not be
relied on for toggling power.

In case the interface is removed and re-added while runtime PM is
disabled, the FW will fail to boot, as it is mandatory to toggle power
between boots. For instance, this can happen during suspend in case one
of the devices fails to suspend before the MMC host suspends, but after
mac80211 was suspended. The interface will be removed and reactivated
without toggling the power.

Fix this by calling mmc_power_save_host/mmc_power_restore_host in
wl1271_sdio_power_on/off functions. It will toggle the power to the chip
even if runtime PM is disabled. The runtime PM functions should still be
called to make sure runtime PM does not opportunistically power the chip
off (e.g. after resuming from system suspend).

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

wl12xx: fix the path to the wl12xx firmwares

In the linux-firmware git tree, the firmwares and the NVS are inside
the ti-connectivity directory.  Fix the filenames that the driver
looks for accordingly.

[Fixed commit message and merged with the latest changes. -- Luca]

Signed-off-by: Sebastien Jan <s-jan@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

Bluetooth: Fix some small code style issues in mgmt.c

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

Bluetooth: Use variable name instead of type in sizeof()

As written in the CodingStyle doc.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

Bluetooth: Remove unused code from get_connections

Command pointer was a leftover after moving controller index to
mgmt_hdr.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

Bluetooth: Log all parameters in cmd_status for easier debugging

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

Bluetooth: Fix possible NULL pointer dereference in cmd_complete

It is now possible to create command complete event without specific
reply data by passing NULL as reply with len 0. Check pointer before
calling memcpy to avoid undefined behaviour.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

mac80211: make rate control Kconfig warning depend on mac80211

... Otherwise it is displayed when mac80211 isn't
even turned on, which is completely pointless.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

b43: N-PHY: rev3+: add static tables

This finally makes TX on OFDM rates possible on my dev with PHY rev 4.
We still have lower performance than wl, but at least speeds around 15M
become possible.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtlwifi: Fix error registering rate-control

When a second module such as rtl8192ce or rtl8192cu links to rtlwifi, the attempt
to register a rate-control mechanism fails with the warning shown below. The fix is to
select the RC mechanism when rtlwifi is initialized.

WARNING: at net/mac80211/rate.c:42 ieee80211_rate_control_register+0xc9/0x100 [mac80211]()
Hardware name: HP Pavilion dv2700 Notebook PC
Modules linked in: arc4 ecb rtl8192ce rtl8192cu(+) rtl8192c_common rtlwifi snd_hda_codec_conexant amd74xx(+) ide_core sg mac80211 snd_hda_intel snd_hda_codec i2c_nforce2 snd_pcm snd_timer cfg80211 snd k8temp hwmon serio_raw joydev i2c_core soundcore snd_page_alloc rfkill forcedeth video ac battery button ext3 jbd mbcache sd_mod ohci_hcd ahci libahci libata scsi_mod ehci_hcd usbcore fan processor thermal
Pid: 2227, comm: modprobe Not tainted 2.6.38-rc6-wl+ #468
Call Trace:
 [<ffffffff8104a3da>] ? warn_slowpath_common+0x7a/0xb0
 [<ffffffff8104a425>] ? warn_slowpath_null+0x15/0x20
 [<ffffffffa02de409>] ? ieee80211_rate_control_register+0xc9/0x100 [mac80211]
 [<ffffffffa03b3790>] ? rtl_rate_control_register+0x10/0x20 [rtlwifi]
 [<ffffffffa03ab9c9>] ? rtl_init_core+0x189/0x620 [rtlwifi]
 [<ffffffff811cfff8>] ? __raw_spin_lock_init+0x38/0x70
 [<ffffffffa03b9dea>] ? rtl_usb_probe+0x709/0x82e [rtlwifi]
 [<ffffffffa002a7fd>] ? usb_match_one_id+0x3d/0xc0 [usbcore]
 [<ffffffffa002aae9>] ? usb_probe_interface+0xb9/0x160 [usbcore]
 [<ffffffff8126ed19>] ? driver_probe_device+0x89/0x1a0
 [<ffffffff8126eed3>] ? __driver_attach+0xa3/0xb0
 [<ffffffff8126ee30>] ? __driver_attach+0x0/0xb0
 [<ffffffff8126dd4e>] ? bus_for_each_dev+0x5e/0x90
 [<ffffffff8126e9d9>] ? driver_attach+0x19/0x20
 [<ffffffff8126e5e8>] ? bus_add_driver+0x158/0x290
 [<ffffffff8126f151>] ? driver_register+0x71/0x140
 [<ffffffff811cfff8>] ? __raw_spin_lock_init+0x38/0x70
 [<ffffffffa002a2cc>] ? usb_register_driver+0xdc/0x190 [usbcore]
 [<ffffffffa0013000>] ? rtl8192cu_init+0x0/0x20 [rtl8192cu]
 [<ffffffffa001301e>] ? rtl8192cu_init+0x1e/0x20 [rtl8192cu]
 [<ffffffff810002cf>] ? do_one_initcall+0x3f/0x180
 [<ffffffff8108fd4b>] ? sys_init_module+0xbb/0x200
 [<ffffffff81002c7b>] ? system_call_fastpath+0x16/0x1b
 ---[ end trace 726271c07a47439e ]---
rtlwifi:rtl_init_core():<0-0> rtl: Unable to register rtl_rc,use default RC !!
ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'

Signed-off-by: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: add support for showing the last rx bitrate

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

cfg80211: add a field for the bitrate of the last rx data packet from a station

Also fix a typo in the STATION_INFO_TX_BITRATE description

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_htc: Handle BSSID/AID for multiple interfaces

The AID and BSSID should be set in the HW only for the
first station interface or adhoc interface. Also, cancel
the ANI timer in stop() for multi-STA scenario. And finally
configure the HW beacon timers only for the first station
interface.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: move remaining iwl-agn-rx.c code into iwl-rx.c

There is no need to have separate iwl-agn-rx.c file after iwlegacy
split.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: move check health code into iwl-rx.c

Remove check_plcp_health and check_ack_health ops methods, they are
unneeded after iwlegacy driver split. Merge check health code into to
iwl-rx.c and make functions static.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: add {ack,plpc}_check module parameters

Add module ack_check, and plcp_check parameters. Ack_check is disabled
by default since is proved that check ack health can cause troubles.
Plcp_check is enabled by default.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlegacy: fix dma mappings and skbs leak

Fix possible dma mappings and skbs introduced by commit
470058e0ad82fcfaaffd57307d8bf8c094e8e9d7 "iwlwifi: avoid Tx queue
memory allocation in interface down".

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: fix dma mappings and skbs leak

Since commit commit 470058e0ad82fcfaaffd57307d8bf8c094e8e9d7
"iwlwifi: avoid Tx queue memory allocation in interface down" we do
not unmap dma and free skbs when down device and there is pending
transfer. What in consequence may cause that system hung (waiting
for free skb's) when performing shutdown at iptables module unload.

DMA leak manifest itself following warning:

WARNING: at lib/dma-debug.c:689 dma_debug_device_change+0x15a/0x1b0()
Hardware name: HP xw8600 Workstation
pci 0000:80:00.0: DMA-API: device driver has pending DMA allocations while released from device [count=240]
Modules linked in: iwlagn(-) aes_x86_64 aes_generic fuse cpufreq_ondemand acpi_cpufreq freq_table mperf xt_physdev ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 ext3 jbd dm_mirror dm_region_hash dm_log dm_mod uinput hp_wmi sparse_keymap sg wmi microcode serio_raw tg3 arc4 ecb shpchp mac80211 cfg80211 rfkill ext4 mbcache jbd2 sr_mod cdrom sd_mod crc_t10dif firewire_ohci firewire_core crc_itu_t mptsas mptscsih mptbase scsi_transport_sas pata_acpi ata_generic ata_piix ahci libahci floppy nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: iwlagn]
Pid: 9131, comm: rmmod Tainted: G        W   2.6.38-rc6-wl+ #33
Call Trace:
 [<ffffffff810649ef>] ? warn_slowpath_common+0x7f/0xc0
 [<ffffffff81064ae6>] ? warn_slowpath_fmt+0x46/0x50
 [<ffffffff812320ab>] ? dma_debug_device_change+0xdb/0x1b0
 [<ffffffff8123212a>] ? dma_debug_device_change+0x15a/0x1b0
 [<ffffffff8149dc18>] ? notifier_call_chain+0x58/0xb0
 [<ffffffff8108e370>] ? __blocking_notifier_call_chain+0x60/0x90
 [<ffffffff8108e3b6>] ? blocking_notifier_call_chain+0x16/0x20
 [<ffffffff812f570c>] ? __device_release_driver+0xbc/0xe0
 [<ffffffff812f5808>] ? driver_detach+0xd8/0xe0
 [<ffffffff812f45d1>] ? bus_remove_driver+0x91/0x100
 [<ffffffff812f6022>] ? driver_unregister+0x62/0xa0
 [<ffffffff8123d5d4>] ? pci_unregister_driver+0x44/0xa0
 [<ffffffffa05632d1>] ? iwl_exit+0x15/0x1c [iwlagn]
 [<ffffffff810ab492>] ? sys_delete_module+0x1a2/0x270
 [<ffffffff81498da9>] ? trace_hardirqs_on_thunk+0x3a/0x3f
 [<ffffffff8100bf42>] ? system_call_fastpath+0x16/0x1b

I still can observe above warning after apply patch, but it is very
hard to reproduce it, and have count=1. Whereas that one is easy to
reproduce using debugfs force_reset while transmitting data, and have
very big counts eg. 240, like quoted here. So count=1 WARNING seems
to be different issue that need to be resolved separately.

v1 -> v2: fix infinity loop bug I made during "for" to "while" loop transition.
v2 -> v3: remove unneeded EXPORT_SYMBOL

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Fix incorrect GPIO LED pin for AR9485

AR9485 doesn't use the default GPIO pin for LED and GPIO 6 is actually
used for this.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: use generic mac80211 LED blinking code

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

p54: fix a NULL pointer dereference bug

If the RSSI calibration table was not found or not parsed properly,
priv->rssi_db will be NULL, p54_rssi_find needs to be able to deal
with that.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtlwifi: fix places where uninitialized data is used

drivers/net/wireless/rtlwifi/rtl8192ce/trx.c: In function ‘rtl92ce_rx_query_desc’:
drivers/net/wireless/rtlwifi/rtl8192ce/trx.c:255:5: warning: ‘rf_rx_num’ may be used uninitialized in this function
drivers/net/wireless/rtlwifi/rtl8192ce/trx.c:257:12: warning: ‘total_rssi’ may be used uninitialized in this function
drivers/net/wireless/rtlwifi/rtl8192ce/trx.c:466:6: warning: ‘weighting’ may be used uninitialized in this function

This work was supported by a hardware donation from the CE Linux Forum.

Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtlwifi: Add the missing rcu_read_lock/unlock

===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
net/mac80211/sta_info.c:125 invoked rcu_dereference_check() without protection!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
5 locks held by wpa_supplicant/468:
 #0:  (rtnl_mutex){+.+.+.}, at: [<c1465d84>] rtnl_lock+0x14/0x20
 #1:  (&rdev->mtx){+.+.+.}, at: [<f84b8c2b>] cfg80211_mgd_wext_siwfreq+0x6b/0x170 [cfg80211]
 #2:  (&rdev->devlist_mtx){+.+.+.}, at: [<f84b8c37>] cfg80211_mgd_wext_siwfreq+0x77/0x170 [cfg80211]
 #3:  (&wdev->mtx){+.+.+.}, at: [<f84b8c44>] cfg80211_mgd_wext_siwfreq+0x84/0x170 [cfg80211]
 #4:  (&rtlpriv->locks.conf_mutex){+.+.+.}, at: [<f8506476>] rtl_op_bss_info_changed+0x26/0xc10 [rtlwifi]

stack backtrace:
Pid: 468, comm: wpa_supplicant Not tainted 2.6.38-rc6+ #79
Call Trace:
 [<c108806a>] ? lockdep_rcu_dereference+0xaa/0xb0
 [<f8523d2c>] ? sta_info_get_bss+0x19c/0x1b0 [mac80211]
 [<f8523d62>] ? ieee80211_find_sta+0x22/0x40 [mac80211]
 [<f850661c>] ? rtl_op_bss_info_changed+0x1cc/0xc10 [rtlwifi]
 [<c153671c>] ? __mutex_unlock_slowpath+0x14c/0x160
 [<c153673d>] ? mutex_unlock+0xd/0x10
 [<f8507180>] ? rtl_op_config+0x120/0x310 [rtlwifi]
 [<c10896db>] ? trace_hardirqs_on+0xb/0x10
 [<f8522169>] ? ieee80211_bss_info_change_notify+0xf9/0x1f0 [mac80211]
 [<f8506450>] ? rtl_op_bss_info_changed+0x0/0xc10 [rtlwifi]
 [<f853646f>] ? ieee80211_set_channel+0xbf/0xd0 [mac80211]
 [<f84b5f41>] ? cfg80211_set_freq+0x121/0x180 [cfg80211]
 [<f85363b0>] ? ieee80211_set_channel+0x0/0xd0 [mac80211]
 [<f84b8ceb>] ? cfg80211_mgd_wext_siwfreq+0x12b/0x170 [cfg80211]
 [<f84b87eb>] ? cfg80211_wext_siwfreq+0x9b/0x100 [cfg80211]
 [<c153b98b>] ? sub_preempt_count+0x7b/0xb0
 [<c150f874>] ? ioctl_standard_call+0x74/0x3b0
 [<c1465d84>] ? rtnl_lock+0x14/0x20
 [<f84b8750>] ? cfg80211_wext_siwfreq+0x0/0x100 [cfg80211]
 [<c14568bd>] ? __dev_get_by_name+0x8d/0xb0
 [<c150fddb>] ? wext_handle_ioctl+0x16b/0x180
 [<f84b8750>] ? cfg80211_wext_siwfreq+0x0/0x100 [cfg80211]
 [<c145bc7a>] ? dev_ioctl+0x5ba/0x720
 [<c108a947>] ? __lock_acquire+0x3e7/0x19b0
 [<c1443b0b>] ? sock_ioctl+0x1eb/0x290
 [<c108bfa5>] ? lock_release_non_nested+0x95/0x2f0
 [<c1443920>] ? sock_ioctl+0x0/0x290
 [<c114d74d>] ? do_vfs_ioctl+0x7d/0x5c0
 [<c1112232>] ? might_fault+0x62/0xb0
 [<c113e3c6>] ? fget_light+0x226/0x390
 [<c1112278>] ? might_fault+0xa8/0xb0
 [<c114dd17>] ? sys_ioctl+0x87/0x90
 [<c1002f9f>] ? sysenter_do_call+0x12/0x38

This work was supported by a hardware donation from the CE Linux Forum.

Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: remove duplicate initialization

rate_mask is initialized again later so this can be removed.  Btw, if
rate_control_send_low(sta, priv_sta, txrc) returns false, that means
that "sta" is non-NULL.  That's why the second initialization of
rate_mask is a little simpler than the first.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Bluetooth: Fix BT_L2CAP and BT_SCO in Kconfig

If we want something "bool" built-in in something "tristate" it can't
"depend on" the tristate config option.

Report by DaveM:

   I give it 'y' just to make it happen, for both, and afterways no
   matter how many times I rerun "make oldconfig" I keep seeing things
   like this in my build:

scripts/kconfig/conf --silentoldconfig Kconfig
include/config/auto.conf:986:warning: symbol value 'm' invalid for BT_SCO
include/config/auto.conf:3156:warning: symbol value 'm' invalid for BT_L2CAP

Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Merge branch 'wireless-next-2.6' of git://git./linux/kernel/git/iwlwifi/iwlwifi-2.6

at76c50x-usb: fix warning caused by at76_mac80211_tx now returning void

  CC [M]  drivers/net/wireless/at76c50x-usb.o
drivers/net/wireless/at76c50x-usb.c: In function ‘at76_mac80211_tx’:
drivers/net/wireless/at76c50x-usb.c:1759:4: warning: ‘return’ with a value, in function returning void

This is fallout from commit 7bb4568372856688bc070917265bce0b88bb7d4d
("mac80211: make tx() operation return void").

Signed-off-by: John W. Linville <linville@tuxdriver.com>

Bluetooth: Use ERR_PTR as return error from hci_connect

Use ERR_PTR mechanism to return error from hci_connect.

Signed-off-by: Ville Tervo <ville.tervo@nokia.com>
Signed-off-by: Anderson Briglia <anderson.briglia@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

Bluetooth: Validate data size before accessing mgmt commands

Crafted (too small) data buffer could result in reading data outside of buffer.
Validate buffer size and return EINVAL if size is wrong.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Acked-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

Bluetooth: Move index to common header in management interface

Most mgmt commands and event are related to hci adapter. Moving index to
common header allow to easily use it in command status while reporting errors.
For those not related to adapter use MGMT_INDEX_NONE (0xFFFF) as index.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Acked-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

Bluetooth: Use proper command structure in remove_uuid

The structure used for command was wrong (probably copy-paste mistake).

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Acked-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

iwlagn: enable BT session 2 type UART for 2000 series

For 2000 series device, use session 2 type of BT UART message

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: split BT page and inquiry UART msg

Both inquiry and page was combine in frame7 of UART message, separate it

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: add BT Session Activity 2 UART message (BT -> WiFi)

additional UART message defines

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: add bt config structure support for 2000 series

2000 series has different bt config command structure, add support for it

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

iwlagn: name change for BT config command

No functional changes, name changes to reflect the structure used by
6000 series.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

Bluetooth: Remove duplicated BT_INFO() from L2CAP

The message for the initialization of the L2CAP layer was being
printed twice.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

Bluetooth: remove unnecessary call to hci_sock_cleanup

hci_sock_cleanup is already called after the sock_err label.
It appears that we can drop this call.

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

iwlegacy: change some symbols duplicated from iwlwifi directory

drivers/net/wireless/iwlegacy/built-in.o:(.rodata+0x29f0): multiple definition of `iwl_rates'
drivers/net/wireless/iwlwifi/built-in.o:(.rodata+0xa68): first defined here
powerpc64-linux-ld: Warning: size of symbol `iwl_rates' changed from 143 in drivers/net/wireless/iwlwifi/built-in.o to 130 in drivers/net/wireless/iwlegacy/built-in.o
drivers/net/wireless/iwlegacy/built-in.o:(.data+0x0): multiple definition of `bt_coex_active'
drivers/net/wireless/iwlwifi/built-in.o:(.data+0x668): first defined here
drivers/net/wireless/iwlegacy/built-in.o:(.rodata+0x750): multiple definition of `iwl_eeprom_band_1'
drivers/net/wireless/iwlwifi/built-in.o:(.rodata+0x27d0): first defined here
drivers/net/wireless/iwlegacy/built-in.o:(.rodata+0x3f0): multiple definition of `iwl_bcast_addr'
drivers/net/wireless/iwlwifi/built-in.o:(.rodata+0x24f8): first defined here
drivers/net/wireless/iwlegacy/built-in.o:(.bss+0x3d48): multiple definition of `iwl_debug_level'
drivers/net/wireless/iwlwifi/built-in.o:(.bss+0x21950): first defined here

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: support direct offchannel TX offload

For devices supported by iwlwifi sometimes
off-channel transmissions need to be handled
by the device completely. To support this
mac80211 needs to pass the frame directly
to the driver and not through the TX path
as the driver needs the frame and channel
information at the same time.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: better fix for conn_mon_timer running after disassociate

Is still possible to schedule conn_mon_timer after disassociate from
ieee80211_sta_tx_notify() and ieee80211_offchannel_ps_disable().

Move disassociate check to ieee80211_sta_reset_conn_monitor() to cover
all these cases, and add unlikely since in most the time we call
ieee80211_sta_reset_conn_monitor() when associated.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Fix compilation warning.

Initialize txq to avoid this warning:

drivers/net/wireless/ath/ath9k/main.c: In function ‘ath9k_flush’:
drivers/net/wireless/ath/ath9k/main.c:2138: warning: ‘txq’ may be used uninitialized in this function

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Cancel pll_work while disabling radio.

pll_work should be cancelled on full_sleep or it may cause
redundant chip reset.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k_hw: Fix pcie_serdes setting for AR9485 1.1 version.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

b43: fill PHY ctl word1 in TX header for N-PHY

This patch fixes tramissing on OFDM rates for PHYs 1 and 2. There is
still something wrong with PHYs 3+. Tests has shown decreasing of
performance on CCK rates by 1-2%, we have to live with that.
Additionaly this noticeably reduces amount of PHY errors. They were
mostly produced by auto-switching to higher rate for better
performanced, which resulted in no transmit at all and PHY errors.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlagn: fix iwlagn_check_needed_chains

This function was intended to calculate the
number of RX chains needed, but could only
work where the AP's streams were asymmetric,
i.e. 2 TX and 3 RX or similar. In the case
where IEEE80211_HT_MCS_TX_RX_DIFF was not
set, this function would calculate the wrong
information.

Additionally, mac80211 didn't pass through
the required values at all, so it couldn't
work anyway.

Rewrite the logic in this function and add
appropriate comments to make it readable.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: copy peer MCS TX parameters

We need to copy this to allow drivers to look
at the information where needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

orinoco: Drop scan results with unknown channels

If the frequency can not be mapped to a channel structure log it and drop it.

Signed-off-by: Joseph J. Gunn <armadefuego@yahoo.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: remove IBSS merge delay

This reverts 4a332a38
("mac80211: Give it some time to do the TSF sync").

There's no point in waiting with a new IBSS merge
just because the hardware hasn't merged up with
the old IBSS yet, and since 34e8f082 we no longer
attempt to merge with the IBSS we're already in.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: make tx() operation return void

The return value of the tx operation is commonly
misused by drivers, leading to errors. All drivers
will drop frames if they fail to TX the frame, and
they must also properly manage the queues (if they
didn't, mac80211 would already warn).

Removing the ability for drivers to return a BUSY
value also allows significant cleanups of the TX
TX handling code in mac80211.

Note that this also fixes a bug in ath9k_htc, the
old "return -1" there was wrong.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Tested-by: Sedat Dilek <sedat.dilek@googlemail.com> [ath5k]
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> [rt2x00]
Acked-by: Larry Finger <Larry.Finger@lwfinger.net> [b43, rtl8187, rtlwifi]
Acked-by: Luciano Coelho <coelho@ti.com> [wl12xx]
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlegacy: do not set tx power when channel is changing

Same fix as f844a709a7d8f8be61a571afc31dfaca9e779621
"iwlwifi: do not set tx power when channel is changing".

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

p54: implement set_coverage_class

The callback sets slot time as specified in IEEE 802.11-2007
section 17.3.8.6 and raises round trip delay accordingly.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtl8192c: fix compilation errors

On my G5 this fails to compile with

drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:701: error: __ksymtab__rtl92c_phy_txpwr_idx_to_dbm causes a section type conflict
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:701: error: __ksymtab__rtl92c_phy_txpwr_idx_to_dbm causes a section type conflict
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:677: error: __ksymtab__rtl92c_phy_dbm_to_txpwr_Idx causes a section type conflict
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:677: error: __ksymtab__rtl92c_phy_dbm_to_txpwr_Idx causes a section type conflict

since you can't export static functions.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtlwifi: rtl8192ce: rtl8192cu: Fix multiple def errors for allyesconfig build

As noted by Stephan Rothwell, an allyesconfig build fails since rtl8192cu
was merged with failures such as:

drivers/net/wireless/rtlwifi/rtl8192cu/built-in.o: In function `rtl92c_phy_sw_chnl':
(.opd+0xf30): multiple definition of `rtl92c_phy_sw_chnl'
drivers/net/wireless/rtlwifi/rtl8192ce/built-in.o:(.opd+0xb70): first defined here
drivers/net/wireless/rtlwifi/rtl8192cu/built-in.o: In function `rtl92c_fill_h2c_cmd':
(.opd+0x288): multiple definition of `rtl92c_fill_h2c_cmd'
drivers/net/wireless/rtlwifi/rtl8192ce/built-in.o:(.opd+0x288): first defined here

These are caused because the code shared between rtl8192ce and rtl8192cu
is included in both drivers. This has been fixed by creating a new modue that
contains the shared code.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtlwifi: Eliminate udelay calls with too large values

On ARM, compilation of rtlwifi/efuse.c fails with the message:
ERROR: "__bad_udelay" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
On inspection, the faulty calls are in routine efuse_reset_loader(), a
routine that is never used, and the faulty routine is deleted.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>