openwrt/staging/blogic.git
12 years agoath9k: make MAC sample statistics optional
Felix Fietkau [Sat, 3 Mar 2012 14:17:03 +0000 (15:17 +0100)]
ath9k: make MAC sample statistics optional

They're more expensive than some of the other debug options and only used
in very rare situations, so it sometimes makes sense to disable them while
leaving in debugfs support.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath9k_hw: use cold instead of warm reset on AR9280
Felix Fietkau [Sat, 3 Mar 2012 14:17:02 +0000 (15:17 +0100)]
ath9k_hw: use cold instead of warm reset on AR9280

Cold reset is more reliable for getting the hardware out of some specific
stuck states.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: Filter duplicate IE ids
Paul Stewart [Fri, 24 Feb 2012 01:59:53 +0000 (17:59 -0800)]
mac80211: Filter duplicate IE ids

mac80211 is lenient with respect to reception of corrupted beacons.
Even if the frame is corrupted as a whole, the available IE elements
are still passed back and accepted, sometimes replacing legitimate
data.  It is unknown to what extent this "feature" is made use of,
but it is clear that in some cases, this is detrimental.  One such
case is reported in http://crosbug.com/26832 where an AP corrupts
its beacons but not its probe responses.

One approach would be to completely reject frames with invaid data
(for example, if the last tag extends beyond the end of the enclosing
PDU).  The enclosed approach is much more conservative: we simply
prevent later IEs from overwriting the state from previous ones.
This approach hopes that there might be some salient data in the
IE stream before the corruption, and seeks to at least prevent that
data from being overwritten.  This approach will fix the case above.

Further, we flag element structures that contain data we think might
be corrupted, so that as we fill the mac80211 BSS structure, we try
not to replace data from an un-corrupted probe response with that
of a corrupted beacon, for example.

Short of any statistics gathering in the various forms of AP breakage,
it's not possible to ascertain the side effects of more stringent
discarding of data.

Signed-off-by: Paul Stewart <pstew@chromium.org>
Cc: Sam Leffler <sleffler@chromium.org>
Cc: Eliad Peller <eliad@wizery.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: NCI code identation fixes
Samuel Ortiz [Mon, 5 Mar 2012 00:03:54 +0000 (01:03 +0100)]
NFC: NCI code identation fixes

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Core code identation fixes
Samuel Ortiz [Mon, 5 Mar 2012 00:03:53 +0000 (01:03 +0100)]
NFC: Core code identation fixes

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: LLCP code identation fixes
Samuel Ortiz [Mon, 5 Mar 2012 00:03:52 +0000 (01:03 +0100)]
NFC: LLCP code identation fixes

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Fix LLCP sockets releasing path
Samuel Ortiz [Mon, 5 Mar 2012 00:03:51 +0000 (01:03 +0100)]
NFC: Fix LLCP sockets releasing path

The socket local pointer needs to be set to NULL when the adapter is
removed or the MAC goes down.
If the socket release code is called after such an event, the socket
reference count still needs to be decreased in order for the socket to
eventually be freed.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Remove the rf mode parameter from the DEP link up routine
Samuel Ortiz [Mon, 5 Mar 2012 00:03:50 +0000 (01:03 +0100)]
NFC: Remove the rf mode parameter from the DEP link up routine

When calling nfc_dep_link_up, we implicitely are in initiator mode.
Which means we also can provide the general bytes as a function argument,
as all drivers will eventually request them.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: SN is not an invalid GT value
Samuel Ortiz [Mon, 5 Mar 2012 00:03:49 +0000 (01:03 +0100)]
NFC: SN is not an invalid GT value

We just don't do anything with it when parsing the general bytes.
We handle it from the CONNECT reception code.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Unlink LLCP child sockets from llcp_sock_release
Samuel Ortiz [Mon, 5 Mar 2012 00:03:48 +0000 (01:03 +0100)]
NFC: Unlink LLCP child sockets from llcp_sock_release

The parent socket (the bound one) could be freed before its children, so
we should unlink the children without trying to reach it through the parent.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Export NFCID when detecting a p2p target with pn533
Samuel Ortiz [Mon, 5 Mar 2012 00:03:47 +0000 (01:03 +0100)]
NFC: Export NFCID when detecting a p2p target with pn533

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Export Jewel/Topaz ID from pn533
Samuel Ortiz [Mon, 5 Mar 2012 00:03:46 +0000 (01:03 +0100)]
NFC: Export Jewel/Topaz ID from pn533

The jewel ID is the NFCID1 for Topaz NFC tags.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Export sensf from pn533
Samuel Ortiz [Mon, 5 Mar 2012 00:03:45 +0000 (01:03 +0100)]
NFC: Export sensf from pn533

sensf is the detection response for Felica NFC tags.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Fragment LLCP I frames
Samuel Ortiz [Mon, 5 Mar 2012 00:03:44 +0000 (01:03 +0100)]
NFC: Fragment LLCP I frames

Based on the receiver MIU, we have to fragment the frame to be
transmitted.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Set MIU and RW values from CONNECT and CC LLCP frames
Samuel Ortiz [Mon, 5 Mar 2012 00:03:43 +0000 (01:03 +0100)]
NFC: Set MIU and RW values from CONNECT and CC LLCP frames

We use the maximum values for the LLCP Maximum Information Unit and Receive
Window Size.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Send LLCP RR frames to acknowledge received I frames
Samuel Ortiz [Mon, 5 Mar 2012 00:03:42 +0000 (01:03 +0100)]
NFC: Send LLCP RR frames to acknowledge received I frames

In order to acknowledge an I frame, we have to either queue pending local
I frames or queue a receiver ready frame.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Set the right LLCP N(R) value for I frames
Samuel Ortiz [Mon, 5 Mar 2012 00:03:41 +0000 (01:03 +0100)]
NFC: Set the right LLCP N(R) value for I frames

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Clear LLCP SDPs whan MAC goes down
Samuel Ortiz [Mon, 5 Mar 2012 00:03:40 +0000 (01:03 +0100)]
NFC: Clear LLCP SDPs whan MAC goes down

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Clear pn533 target structure
Samuel Ortiz [Mon, 5 Mar 2012 00:03:39 +0000 (01:03 +0100)]
NFC: Clear pn533 target structure

The polled target structure should be memset to 0 in order to avoid
sel_res and sens_res garbage.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Fix bitops usage in LLCP
Samuel Ortiz [Mon, 5 Mar 2012 00:03:38 +0000 (01:03 +0100)]
NFC: Fix bitops usage in LLCP

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: LLCP socket sendmsg implemetation
Samuel Ortiz [Mon, 5 Mar 2012 00:03:37 +0000 (01:03 +0100)]
NFC: LLCP socket sendmsg implemetation

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Handle Receiver Not Ready LLCP frame
Samuel Ortiz [Mon, 5 Mar 2012 00:03:36 +0000 (01:03 +0100)]
NFC: Handle Receiver Not Ready LLCP frame

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Factorize the I frame queueing routine
Samuel Ortiz [Mon, 5 Mar 2012 00:03:35 +0000 (01:03 +0100)]
NFC: Factorize the I frame queueing routine

This one will be called from the I frame command sending.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Add device powered netlink attribute
Samuel Ortiz [Mon, 5 Mar 2012 00:03:34 +0000 (01:03 +0100)]
NFC: Add device powered netlink attribute

For user space to know if a device is up or down.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Export NFCID1 from pn533
Samuel Ortiz [Mon, 5 Mar 2012 00:03:33 +0000 (01:03 +0100)]
NFC: Export NFCID1 from pn533

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobcma: add support for on-chip OTP memory used for SPROM storage
Arend van Spriel [Tue, 6 Mar 2012 14:50:48 +0000 (15:50 +0100)]
bcma: add support for on-chip OTP memory used for SPROM storage

Wireless Broadcom chips can have either their SPROM data stored
on either external SPROM or on-chip OTP memory. Both are accessed
through the same register space. This patch adds support for the
on-chip OTP memory.

Tested with:
BCM43224 OTP and SPROM
BCM4331 SPROM
BCM4313 OTP

This patch is in response to linux-wireless thread [1].

[1] http://article.gmane.org/gmane.linux.kernel.wireless.general/85426

Tested-by: Saul St. John <saul.stjohn@gmail.com>
Tested-by: Rafal Milecki <zajec5@gmail.com>
Tested-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobcma: return error in bcma_sprom_get() when fallback fails
Arend van Spriel [Tue, 6 Mar 2012 14:50:47 +0000 (15:50 +0100)]
bcma: return error in bcma_sprom_get() when fallback fails

When not SPROM is available a fallback mechanism is used. However,
when that fails the code currently continues. This patch assures
that the bcma_sprom_get() function aborts when that happens.

Cc: Rafal Milecki <zajec5@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath5k: do not re-run AGC calibration periodically
Felix Fietkau [Tue, 6 Mar 2012 10:06:38 +0000 (11:06 +0100)]
ath5k: do not re-run AGC calibration periodically

All other Atheros drivers run the AGC gain calibration and DC offset
calibration only after reset. Running them periodically has caused stability
issues on some (primarily AR2315/2413/5413/5414 based) devices, leading to
messages such as:

ath5k phy0: gain calibration timeout (2462MHz)
ath5k phy0: calibration of channel 11 failed

Related bug reports:
https://dev.openwrt.org/ticket/10574
https://bugzilla.redhat.com/show_bug.cgi?id=795141

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath5k: do not stop queues for full calibration
Felix Fietkau [Tue, 6 Mar 2012 10:06:37 +0000 (11:06 +0100)]
ath5k: do not stop queues for full calibration

Some calibration types interfere with tx activity, but the queue stop does
not prevent that. In fact, some calibration types need tx activity to properly
function, so stopping the queues for them is counterproductive.
In some tests this patch has been shown to improve stability, especially in
AP or ad-hoc mode.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: Modify tsf via debugfs in mesh interfaces
Javier Cardona [Tue, 6 Mar 2012 01:20:38 +0000 (17:20 -0800)]
mac80211: Modify tsf via debugfs in mesh interfaces

Signed-off-by: Javier Cardona <javier@cozybit.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211_hwsim: Add tsf to beacons, probe responses and radiotap header.
Javier Cardona [Tue, 6 Mar 2012 01:20:37 +0000 (17:20 -0800)]
mac80211_hwsim: Add tsf to beacons, probe responses and radiotap header.

Generate a tsf from internal kernel clock.  Prepare the path for having
different tsf offsets on each phy.  This will be useful for testing
mesh synchronization algorithms.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: fix mesh airtime link metric estimating
Thomas Pedersen [Mon, 5 Mar 2012 23:31:48 +0000 (15:31 -0800)]
mac80211: fix mesh airtime link metric estimating

Airtime link metric estimation was broken in HT mesh, use
cfg80211_calculate_bitrate to get the right rate value.

Also factor out tx rate copying from sta_set_sinfo().

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agocfg80211: expose cfg80211_calculate_bitrate()
Thomas Pedersen [Mon, 5 Mar 2012 23:31:47 +0000 (15:31 -0800)]
cfg80211: expose cfg80211_calculate_bitrate()

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move firmware completion wait
Johannes Berg [Mon, 5 Mar 2012 19:24:51 +0000 (11:24 -0800)]
iwlwifi: move firmware completion wait

This doesn't belong into the op_mode, it has
to be in the drv stop flow instead.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move firmware request into drv
Johannes Berg [Mon, 5 Mar 2012 19:24:50 +0000 (11:24 -0800)]
iwlwifi: move firmware request into drv

Firmware request is a base driver flow,
it isn't related to any specific mode.
Move the code related to it into the
base driver file iwl-drv.c.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move iwl_base_params to shared header
Johannes Berg [Mon, 5 Mar 2012 19:24:49 +0000 (11:24 -0800)]
iwlwifi: move iwl_base_params to shared header

This is used from there, so should be in it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move uCode deallocation to drv
Johannes Berg [Mon, 5 Mar 2012 19:24:48 +0000 (11:24 -0800)]
iwlwifi: move uCode deallocation to drv

This shouldn't be in the op_mode, as it
will later be switchable at runtime.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: fix station HT parameters
Johannes Berg [Mon, 5 Mar 2012 19:24:47 +0000 (11:24 -0800)]
iwlwifi: fix station HT parameters

My patch "iwlwifi: simplify auth/assoc flow"
caused a serious throughput degradation due
to me forgetting that there are HT settings
in the station table. To restore throughput,
set these parameters correctly when the sta
moves to assoc state.

This patch should probably be merged with
the auth/assoc redesign patch for upstream.
In that case, this paragraph should be added
to the commit log as the third paragraph
(before talking about RXON):

However, as we only get the station HT data
when the station moves into assoc state, we
also need to program this into the device
(and copy it into our database) then.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move traffic log definitions
Johannes Berg [Mon, 5 Mar 2012 19:24:46 +0000 (11:24 -0800)]
iwlwifi: move traffic log definitions

These are DVM specific, and shouldn't be
in iwl-shared.h.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move IWL_MASK into file using it
Johannes Berg [Mon, 5 Mar 2012 19:24:45 +0000 (11:24 -0800)]
iwlwifi: move IWL_MASK into file using it

Only used in two places in the same file,
no need to be in iwl-shared.h.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move tid_to_ac to PCI-E
Johannes Berg [Mon, 5 Mar 2012 19:24:44 +0000 (11:24 -0800)]
iwlwifi: move tid_to_ac to PCI-E

Currently, queue mapping is handled in the
transport. This may change, but until then
the code for it can be close to where it's
used rather than in iwl-shared.h.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: iwl_rx_cmd_buffer belongs to transport API
Johannes Berg [Mon, 5 Mar 2012 19:24:43 +0000 (11:24 -0800)]
iwlwifi: iwl_rx_cmd_buffer belongs to transport API

This is how the transport passes things
up into higher layers, so it belongs to
the transport API.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move queue functions to PCI-E
Johannes Berg [Mon, 5 Mar 2012 19:24:42 +0000 (11:24 -0800)]
iwlwifi: move queue functions to PCI-E

iwl_queue_inc_wrap/iwl_queue_dec_wrap aren't
shared functions, they are PCI-E specific,
so move them into the appropriate header.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: transport's tx_agg_alloc must not sleep
Johannes Berg [Mon, 5 Mar 2012 19:24:41 +0000 (11:24 -0800)]
iwlwifi: transport's tx_agg_alloc must not sleep

The annotation/documentation is wrong, we call
it in a context that can't sleep.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: refactor PCI-E RX path
Johannes Berg [Mon, 5 Mar 2012 19:24:40 +0000 (11:24 -0800)]
iwlwifi: refactor PCI-E RX path

Just make the code easier to read with less indentation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: don't pass iwl_rx_mem_buffer to upper layers
Johannes Berg [Mon, 5 Mar 2012 19:24:39 +0000 (11:24 -0800)]
iwlwifi: don't pass iwl_rx_mem_buffer to upper layers

struct iwl_rx_mem_buffer implementation details
(DMA address, list pointers) that the upper
layers don't need. Introduce iwl_rx_cmd_buffer
that is passed upstream and only contains the
needed data (the page). Additionally, access
this data only via accessor functions, allowing
us to change the implementation in the future.
These accessors are rxb_addr() (as before) and
rxb_steal_page() to take ownership of the data.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: pass response packet directly
Johannes Berg [Mon, 5 Mar 2012 19:24:38 +0000 (11:24 -0800)]
iwlwifi: pass response packet directly

When CMD_WANT_SKB is set for a (synchronous)
command, the response is passed back to the
caller which is then responsible for freeing
it. Make this more abstract with real API,
passing directly the response packet in the
new cmd.resp_pkt member and also introduce
iwl_free_resp() to free the pages -- this
way the upper layers don't have to directly
touch the page implementation.

NOTE: This breaks IDI -- the new code isn't reflected there yet!

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: use ieee80211_tx_status
Johannes Berg [Mon, 5 Mar 2012 19:24:37 +0000 (11:24 -0800)]
iwlwifi: use ieee80211_tx_status

We currently use the _irqsafe version, but that
isn't recommended together with ieee80211_rx()
as it can cause races. If the device reports
a TX-status and RX in that order then with the
current combination mac80211 might process them
in the other order, which can cause issues with
powersaving clients.

Use ieee80211_tx_status() to avoid this race.
Since we don't want to call it with locks held,
process the frame queues later -- this is fine
as they are on the stack.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move wowlan bool into priv
Johannes Berg [Mon, 5 Mar 2012 19:24:36 +0000 (11:24 -0800)]
iwlwifi: move wowlan bool into priv

With the new WoWLAN flow into the transport
there no longer is a need for this to be
shared, so move it into priv.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: clean up (wowlan) suspend flow
Johannes Berg [Mon, 5 Mar 2012 19:24:35 +0000 (11:24 -0800)]
iwlwifi: clean up (wowlan) suspend flow

In the WoWLAN suspend flow, instead of accessing
registers directly, ask the transport to do the
required setup at the end of suspend. If the
transport doesn't implement this, don't tell the
stack we support WoWLAN.

When the device suspends w/o WoWLAN, mac80211
will have stopped it already, which has already
called iwl_apm_stop() via stop_hw(). Thus, it
isn't necessary to call it again in pcie_suspend
and we can simply do nothing there.

This unifies the regular and WoWLAN suspend.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: reduce IDI code ifdef
Johannes Berg [Mon, 5 Mar 2012 19:24:34 +0000 (11:24 -0800)]
iwlwifi: reduce IDI code ifdef

The code in the two branches of the #ifdef
is almost the same so move the common code
outside the #ifdef.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: make config const
Johannes Berg [Mon, 5 Mar 2012 19:24:33 +0000 (11:24 -0800)]
iwlwifi: make config const

Writing to the global config structures
is always wrong. To protect against such
mistakes in the future, mark them const.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: use valid TX/RX antenna from hw_params
Johannes Berg [Mon, 5 Mar 2012 19:24:32 +0000 (11:24 -0800)]
iwlwifi: use valid TX/RX antenna from hw_params

It's not really a good idea to write to the
global static configuration. Use the valid
TX/RX antenna information only from the HW
params struct except in the case where the
values from the config are used to override
the values from the EEPROM.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: remove SKU from config
Johannes Berg [Mon, 5 Mar 2012 19:24:31 +0000 (11:24 -0800)]
iwlwifi: remove SKU from config

There's no SKU override, we always just use
it from EEPROM. As such, we can remove it
from the config and use it in hw_param only.
Since iwl_eeprom_check_sku() really needs
to fill it in also rename that to
iwl_eeprom_init_hw_params().

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: remove per-device debug level
Johannes Berg [Mon, 5 Mar 2012 19:24:30 +0000 (11:24 -0800)]
iwlwifi: remove per-device debug level

There's no need for the per-device debug
level that we expose in debugfs since the
module parameter is writable in sysfs.

At the same time, simplify code by changing
    iwl_get_debug_level(shrd) & IWL_DL_ISR)
to
    iwl_have_debug_level(IWL_DL_ISR)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: simplify auth/assoc flow
Johannes Berg [Mon, 5 Mar 2012 19:24:29 +0000 (11:24 -0800)]
iwlwifi: simplify auth/assoc flow

With mac80211 now giving us station information
(via the sta_state callback) before auth/assoc
we can get rid of tx_sync by adding the station
early for the case of managed interfaces. Keep
AP mode actions the same for now.

As we now get the BSSID early, we can also get
rid of iwl_reprogram_ap_sta().

We can still optimise the number of RXONs we
send to the device, but that can be done later.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: make EXIT_PENDING depend on mac80211
Johannes Berg [Mon, 5 Mar 2012 19:24:28 +0000 (11:24 -0800)]
iwlwifi: make EXIT_PENDING depend on mac80211

There's no reason to set EXIT_PENDING when we
start removing the module, as mac80211 will
cleanly shut down the device in this case.
Additionally, there's no point in rejecting
commands to the device when we're cleaning up
as that only leads to unwanted errors from
mac80211 being printed, such as
  failed to remove key (...) from hardware (-16)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: remove shared lock
Johannes Berg [Mon, 5 Mar 2012 19:24:27 +0000 (11:24 -0800)]
iwlwifi: remove shared lock

Some data doesn't need protection, some of the
lock places are simply useless, and some data
can be protected with the mutex instead. Thus
the shared lock can be removed by making those
changes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: introduce statistics lock
Johannes Berg [Mon, 5 Mar 2012 19:24:26 +0000 (11:24 -0800)]
iwlwifi: introduce statistics lock

The statistics are currently only half-heartedly
locked against concurrent reading & modification
so introduce a lock to really protect them.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: make sta lock private & BH lock
Johannes Berg [Mon, 5 Mar 2012 19:24:25 +0000 (11:24 -0800)]
iwlwifi: make sta lock private & BH lock

Now that the transport has its own locking,
there's no need to have the sta_lock in the
shared data. Also, it can be a BH lock as
it's not used from IRQ handlers.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: introduce per-queue locks
Johannes Berg [Mon, 5 Mar 2012 19:24:24 +0000 (11:24 -0800)]
iwlwifi: introduce per-queue locks

Instead of (ab)using the sta_lock, make the
transport layer lock its own TX queue data
structures with a lock per queue. This also
unifies with the cmd queue lock.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: build some station commands directly
Johannes Berg [Mon, 5 Mar 2012 19:24:23 +0000 (11:24 -0800)]
iwlwifi: build some station commands directly

In the powersave related functions we only need
to set a few parameters for the station command
and can otherwise leave it blank -- there's no
need to copy it from the database.

This allows us to not use the sta lock here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: simplify code in iwlagn_key_sta_id
Johannes Berg [Mon, 5 Mar 2012 19:24:22 +0000 (11:24 -0800)]
iwlwifi: simplify code in iwlagn_key_sta_id

Simplify the code by returning directly in the
error case and replacing the switch/if with a
single if statement.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: reduce sta_lock hold time in TX
Johannes Berg [Mon, 5 Mar 2012 19:24:21 +0000 (11:24 -0800)]
iwlwifi: reduce sta_lock hold time in TX

When we TX, we hold the sta_lock for a long
time, a lot of which isn't needed. Reduce
the time we hold the lock. Note that this
doesn't really change anything as the code
is already under the other spinlock, but it
makes the code easier to read.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: remove an unused argument
Johannes Berg [Mon, 5 Mar 2012 19:24:20 +0000 (11:24 -0800)]
iwlwifi: remove an unused argument

The station ID argument to the function
iwlagn_tx_cmd_build_hwcrypto isn't used
so remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move iwl_clear_driver_stations to user
Johannes Berg [Mon, 5 Mar 2012 19:24:19 +0000 (11:24 -0800)]
iwlwifi: move iwl_clear_driver_stations to user

There's only one place using this function, so
move it where it's needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoairo: fix test for FLAG_RADIO_DOWN
Dan Carpenter [Mon, 5 Mar 2012 18:10:07 +0000 (21:10 +0300)]
airo: fix test for FLAG_RADIO_DOWN

We should be doing a shift (1 << FLAG_RADIO_DOWN) here before testing
the flag.  As luck would have it, this test works almost correctly.
The current code tests for FLAG_RADIO_OFF instead of FLAG_RADIO_DOWN.

#define FLAG_RADIO_OFF  0       /* User disabling of MAC */
#define FLAG_RADIO_DOWN 1       /* ifup/ifdown disabling of MAC */

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: always monitor for stuck queues
Johannes Berg [Sun, 4 Mar 2012 16:50:46 +0000 (08:50 -0800)]
iwlwifi: always monitor for stuck queues

If we only monitor while associated, the following
can happen:
 - we're associated, and the queue stuck check
   runs, setting the queue "touch" time to X
 - we disassociate, stopping the monitoring,
   which leaves the time set to X
 - almost 2s later, we associate, and enqueue
   a frame
 - before the frame is transmitted, we monitor
   for stuck queues, and find the time set to
   X, although it is now later than X + 2000ms,
   so we decide that the queue is stuck and
   erroneously restart the device

It happens more with P2P because there we can
go between associated/unassociated frequently.

Cc: stable@vger.kernel.org
Reported-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agop54pci: use new driver.pm interface for suspend/resume
Christian Lamparter [Sat, 3 Mar 2012 20:25:19 +0000 (21:25 +0100)]
p54pci: use new driver.pm interface for suspend/resume

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agop54: pass interface setup errors back to mac80211
Christian Lamparter [Sat, 3 Mar 2012 20:24:43 +0000 (21:24 +0100)]
p54: pass interface setup errors back to mac80211

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agortlwifi: rtl8192ce: Fix loss of receive performance
Jingjun Wu [Sat, 3 Mar 2012 02:52:14 +0000 (20:52 -0600)]
rtlwifi: rtl8192ce: Fix loss of receive performance

Driver rtl8192ce when used with the RTL8188CE device would start at about
20 Mbps on a 54 Mbps connection, but quickly drop to 1 Mbps. One of the
symptoms is that the AP would need to retransmit each packet 4 of 5 times
before the driver would acknowledge it. Recovery is possible only by
unloading and reloading the driver. This problem was reported at
https://bugzilla.redhat.com/show_bug.cgi?id=770207.

The problem is due to a missing update of the gain setting.

Signed-off-by: Jingjun Wu <jingjun_wu@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath5k: allow AP and mesh mode to operate simultaneously
Chun-Yeow Yeoh [Sat, 3 Mar 2012 01:48:56 +0000 (09:48 +0800)]
ath5k: allow AP and mesh mode to operate simultaneously

This patch allows the possibility of having the mesh point and AP to be operated
simultaneously in one single radio. Previously, mesh point fails to generate the
mesh beacon if virtual AP is created for the same radio.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agocfg80211/mac80211: report signal strength for mgmt frames
Johannes Berg [Mon, 5 Mar 2012 21:18:41 +0000 (22:18 +0100)]
cfg80211/mac80211: report signal strength for mgmt frames

Add the signal strength (in dBm only for now) to
frames that are received via nl80211's various
frame APIs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobrcm80211: smac: cleanup couple of debug output statements
Arend van Spriel [Fri, 2 Mar 2012 21:55:51 +0000 (22:55 +0100)]
brcm80211: smac: cleanup couple of debug output statements

Tidying up some debug statements in brcms_c_ampdu_dotxstatus_complete()
that got broken strings to satisfy checkpatch, but the rules changed.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Alwin Beukers <alwin@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobrcm80211: smac: remove firmware requests from init_module syscall
Arend van Spriel [Fri, 2 Mar 2012 21:55:50 +0000 (22:55 +0100)]
brcm80211: smac: remove firmware requests from init_module syscall

As indicated in [1] on netdev mailing list drivers should not block
on the init_module() syscall. This patch defers the actual driver
registration to a workqueue so the init_module() syscall can complete
without delay.

[1] http://article.gmane.org/gmane.linux.network/217729/

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Alwin Beukers <alwin@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobrcm80211: fmac: remove firmware requests from init_module syscall
Arend van Spriel [Fri, 2 Mar 2012 21:55:49 +0000 (22:55 +0100)]
brcm80211: fmac: remove firmware requests from init_module syscall

As indicated in [1] on netdev mailing list drivers should not block
on the init_module() syscall. This patch defers the actual driver
registration to a workqueue so the init_module() syscall can complete
without delay.

[1] http://article.gmane.org/gmane.linux.network/217729/

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobrcm80211: fmac: initialize host interface drivers regardless result
Arend van Spriel [Fri, 2 Mar 2012 21:55:48 +0000 (22:55 +0100)]
brcm80211: fmac: initialize host interface drivers regardless result

The module init function of brcmfmac calls init functions for SDIO and
USB doing driver registration. This patch removes terminating the module
init when a driver registration for one host interface fails.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobrcm80211: fmac: use counters in brcmf_bus structure
Arend van Spriel [Fri, 2 Mar 2012 21:55:47 +0000 (22:55 +0100)]
brcm80211: fmac: use counters in brcmf_bus structure

The usb code defines a structure for counting statistics. However,
it should use the statistics entry provided in brcmf_bus as that is
exposed to the net_device. The usb private statistics counter only
remains with counters for control packets between driver and usb
device.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobrcm80211: fmac: remove brcmf_usb_attrib structure
Arend van Spriel [Fri, 2 Mar 2012 21:55:46 +0000 (22:55 +0100)]
brcm80211: fmac: remove brcmf_usb_attrib structure

Several fields in this structure are only written once or not used
at all. Remaining two fields have been moved and brcmf_usb_attrib
definition has been removed.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Kan Yan <kanyan@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobrcm80211: fmac: remove unnecessary NULL pointer check
Arend van Spriel [Fri, 2 Mar 2012 21:55:45 +0000 (22:55 +0100)]
brcm80211: fmac: remove unnecessary NULL pointer check

In brcmf_usb_up() the variable devinfo was checked for being
a NULL pointer, but this can not happen. Also the check was done
after dereferencing the pointer. This patch removes the check.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Kan Yan <kanyan@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agortlwifi: rtl8192c: Prevent sleeping from invalid context in rtl8192cu
Larry Finger [Fri, 2 Mar 2012 21:23:36 +0000 (15:23 -0600)]
rtlwifi: rtl8192c: Prevent sleeping from invalid context in rtl8192cu

When driver rtl8192cu is used with the debug level set to 3 or greater,
the result is "sleeping function called from invalid context" due to
an rcu_read_lock() call in the DM refresh routine in driver rtl8192c.
This lock is not necessary as the USB driver does not use the struct
being protected, thus the lock is set only when a PCI interface is
active.

This bug is reported in https://bugzilla.kernel.org/show_bug.cgi?id=42775.

Reported-by: Ronald Wahl <ronald.wahl@raritan.com>
Tested-by: Ronald Wahl <ronald.wahl@raritan.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Cc: Ronald Wahl <ronald.wahl@raritan.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agortlwifi: Remove extraneous value return
Larry Finger [Fri, 2 Mar 2012 19:22:46 +0000 (13:22 -0600)]
rtlwifi: Remove extraneous value return

In usb.c, routine _rtl_usb_init_sw() always returns 0, and rtl_usb_probe()
never checks the returned value. Thus we can change _rtl_usb_init_sw() to
a void routine. In addition, remove the underscore at the beginning of the
name of the routine.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agortlwifi: Detect misread of end-point count
Larry Finger [Fri, 2 Mar 2012 19:21:22 +0000 (13:21 -0600)]
rtlwifi: Detect misread of end-point count

In the unlikely event of a misread of the USB end point count, the driver
generates a divide fault. To prevent this, add a check of the value
returned by _rtl_usb_init(). In addition, add some logging to indicate
why the condition occurred.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: combine QoS with other BSS changes
Johannes Berg [Fri, 2 Mar 2012 14:56:59 +0000 (15:56 +0100)]
mac80211: combine QoS with other BSS changes

When associating and particularly when disassociating
there's no need to notify the driver about changes
with multiple calls to bss_info_changed, we should
combine the QoS enabling/disabling into the same call
as otherwise the driver could get confused about QoS
suddenly getting disabled while connected.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: use common radiotap code for cooked monitors
Johannes Berg [Fri, 2 Mar 2012 12:18:19 +0000 (13:18 +0100)]
mac80211: use common radiotap code for cooked monitors

There's no need to hardcode a subset of the
radiotap header for cooked monitor receive,
we can just reuse the normal monitor mode
radiotap code. This simplifies the code and
extends the information available on cooked
monitor interfaces.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agocfg80211: Add an attribute to set inactivity timeout in AP mode
Vasanthakumar Thiagarajan [Fri, 2 Mar 2012 10:20:02 +0000 (15:50 +0530)]
cfg80211: Add an attribute to set inactivity timeout in AP mode

This patch adds an attribute, NL80211_ATTR_INACTIVITY_TIMEOUT,
to set the inactivity timeout which can be used to remove the
station in AP mode. This can be passed in NL80211_CMD_START_AP
and used by the drivers which have AP MLME in firmware but
don't support get_station() properly. To disable inactivity
timer in userspace, wpa_s for example, there is a new flag,
NL80211_FEATURE_INACTIVITY_TIMER, in nl80211_feature_flags
through which drivers can register their capability to use
the inactivity timeout to free the stations.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: fix the support of setting non-forwarding entity in Mesh
Chun-Yeow Yeoh [Thu, 1 Mar 2012 18:03:19 +0000 (02:03 +0800)]
mac80211: fix the support of setting non-forwarding entity in Mesh

RANN, PREP and PERR propagation should happen only if the
dot11MeshForwarding is true.  Besides, data frame should not be
forwarded if dot11MeshForwarding is false. This redundant checking
is necessary to avoid the broadcasted ARP breaking the non-forwarding
rule.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: add an rx flag for ignoring a packet's signal strength
Felix Fietkau [Thu, 1 Mar 2012 17:00:07 +0000 (18:00 +0100)]
mac80211: add an rx flag for ignoring a packet's signal strength

For A-MPDU rx it makes sense to only process the signal strength once per
aggregate instead of once per subframe. Additonally, some hardware (e.g.
Atheros) only provides valid signal strength information for the last
subframe.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agocfg80211: fix kernel-doc
Johannes Berg [Thu, 1 Mar 2012 14:28:19 +0000 (15:28 +0100)]
cfg80211: fix kernel-doc

I forgot to update the kernel-doc in my patch
to redesign AP mode APIs, fix that now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: use compare_ether_addr on MAC addresses instead of memcmp
Felix Fietkau [Thu, 1 Mar 2012 14:22:09 +0000 (15:22 +0100)]
mac80211: use compare_ether_addr on MAC addresses instead of memcmp

Because of the constant size and guaranteed 16 bit alignment, the inline
compare_ether_addr function is much cheaper than calling memcmp.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: use 16 bit alignment for the if_ibss bssid field
Felix Fietkau [Thu, 1 Mar 2012 10:23:37 +0000 (11:23 +0100)]
mac80211: use 16 bit alignment for the if_ibss bssid field

Several MAC address comparison functions assume 16 bit alignment for pointers
passed to them. Since the addition of the control_port field, alignment
for the IBSS bssid was off by one, causing a severe performance hit on
architectures without efficient unaligned access (e.g. MIPS).

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomwifiex: endian bug in mwifiex_drv_change_adhoc_chan()
Dan Carpenter [Thu, 1 Mar 2012 07:22:30 +0000 (10:22 +0300)]
mwifiex: endian bug in mwifiex_drv_change_adhoc_chan()

In mwifiex_drv_change_adhoc_chan() we pass channel to
mwifiex_bss_ioctl_ibss_channel() which sets the high 16 bits.  This
works on little endian systems but not on big endian ones.  I've changed
mwifiex_drv_change_adhoc_chan() to use a 16 bit variable.  This matches
the other functions in the file.

I considered changing mwifiex_change_adhoc_chan() as well but it turns
out that the function isn't implemented so I just removed the
definition.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agop54spi: Release GPIO lines and IRQ on error in p54spi_probe
Max Filippov [Wed, 29 Feb 2012 20:40:08 +0000 (00:40 +0400)]
p54spi: Release GPIO lines and IRQ on error in p54spi_probe

This makes it possible to reload driver if insmod has failed due to
missing firmware.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agorndis_wlan: use u8 for key indexes
Jussi Kivilinna [Wed, 29 Feb 2012 14:25:05 +0000 (16:25 +0200)]
rndis_wlan: use u8 for key indexes

cfg80211 uses u8 for key indexes and so should rndis_wlan.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agorndis_wlan: use RNDIS_WLAN_NUM_KEYS for all key index checks
Jussi Kivilinna [Wed, 29 Feb 2012 14:25:00 +0000 (16:25 +0200)]
rndis_wlan: use RNDIS_WLAN_NUM_KEYS for all key index checks

Use new RNDIS_WLAN_NUM_KEYS for checks in add_wep_key() and add_wpa_key().

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agorndis_wlan: fix le16/le32_to_cpu mix up with config.beacon_period
Jussi Kivilinna [Wed, 29 Feb 2012 14:24:54 +0000 (16:24 +0200)]
rndis_wlan: fix le16/le32_to_cpu mix up with config.beacon_period

'beacon_period' in 'struct ndis_80211_conf' is __le32 instead of __le16 so
le32_to_cpu must be used instead of le16_to_cpu.

Also correct 'beacon_interval' variables used for passing this value forward
from u16 to u32 and rename those variables 'beacon_period' This is to avoid
confusion because 'beacon_interval' is defined as __le16 at other structure,
'struct ndis_80211_fixed_ies'.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agorndis_wlan: prevent integer overflow in indication()
Dan Carpenter [Wed, 29 Feb 2012 06:37:53 +0000 (09:37 +0300)]
rndis_wlan: prevent integer overflow in indication()

If we pick a high value for "offset" then it could lead to an integer
overflow and we would get past the check for:
if (offset + len > buflen) { ...

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agorndis_wlan: make some variables unsigned
Dan Carpenter [Wed, 29 Feb 2012 06:36:57 +0000 (09:36 +0300)]
rndis_wlan: make some variables unsigned

These variables can never be less than zero because we cap them in
get_device_pmkids().  Let's make them unsigned here because it's simpler
to not have to worry about negative numbers when we read the code.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agorndis_wlan: remove unneeded variables
Dan Carpenter [Wed, 29 Feb 2012 06:36:28 +0000 (09:36 +0300)]
rndis_wlan: remove unneeded variables

We never use the "len" variable.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agorndis_wlan: integer overflows in rndis_wlan_do_link_up_work()
Dan Carpenter [Thu, 1 Mar 2012 07:02:08 +0000 (10:02 +0300)]
rndis_wlan: integer overflows in rndis_wlan_do_link_up_work()

If "offset" is negative then we can get past this check:
if (offset > CONTROL_BUFFER_SIZE)
Or if we pick a very high "req_ie_len" then we can get around the check:
if (offset + req_ie_len > CONTROL_BUFFER_SIZE)

I made "resp_ie_len" and "req_ie_len" unsigned.  I don't know if it was
intentional that they were signed in the original.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>