Move some code out of rc80211_simple since it's probably needed for all rate
selection algorithms, and fix iwlwifi accordingly. While at it, clean up the
rate_control_get_rate() interface.
Signed-off-by: NStefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This fixes a NULL pointer dereference that can occur when the
ucode is not loaded at the time __iwl_up is called.

The problem was reported at http://kerneloops.org/raw.php?rawid=2765&msgid=Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch moves _cancel_deferred_work out of mutex protection and removes
unnecessary mutex in pci_suspend and pci_resume.

Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The patch fixes the STATUS_RF_KILL_HW state is not cleared problem if the
device goes to suspend when the rf_kill switch is enabled. The bug causes
the driver always thinks the rf_kill switch is enabled (although it is
disabled) after resume.
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Fix rate control algo reference leak in case if network device has been
failed to register.  In this case special flag priv->mac80211_registered is
not set and the rate algo reference is not freeing on module unload.  That
leads to OOPs in further ieee80211 rate register/unregister procedure (by
any callee).

It should fix the bug #9470

	http://bugzilla.kernel.org/show_bug.cgi?id=9470

[akpm@linux-foundation.org: build fix]
Signed-off-by: NCyrill Gorcunov <gorcunov@gmail.com>
Acked-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NJoonwoo Park <joonwpark81@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NJoonwoo Park <joonwpark81@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes iwl_mac_add_interface.

1. Currently only one interface is supported, instead of silently retuning
 0 now it returns  -EOPNOTSUPP (By Johannes Berg)
2. It enables changing mac address from user space (By Ian Schram)
Signed-off-by: NTomas Winkler <tomas@localhost.localdomain>
Cc: Zhu Yi <yi.zhu@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: linux-wireless <linux-wireless@vger.kernel.org
Cc: Ian Schram <ischram@telenet.be>
Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NSaleem Abdulrasool <compnerd@compnerd.org>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The interrupt handler returns IRQ_NONE if it detects that the device
is gone. That's incorrect because the device may have raised the interrupt.
Not acknowledging it may trigger the spurious interrupt detection and kill
drivers sharing the interrupt line.
Signed-off-by: NOliver Neukum <oneukum@suse.de>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The patch fixes association failure (reason = 18) bug by arranging CCK
rates before OFDM rates. This patch will register with mac80211 the
modified rate arrangement with CCK rate first. Change rate scale algorithm
also to deal with rate change. Fix Txpower and rate Table commands to be
constructed correctly after rearrangement.
Signed-off-by: NMohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

It makes no sense to enable interrupts if a device has been unplugged.
In addition if in doubt IRQ_HANDLED should be returned.
Signed-off-by: NOliver Neukum <oneukum@suse.de>
Acked-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Prior to this patch, iwlwifi would always use the first
registered rate control algorithm which, depending on system
setup, could be anything. After the mac80211 patch to make
the simple algorithm built-in, it would always be simple.

This has always been a bug in iwlwifi.

This fixes it by requesting that mac80211 selects the right
rate control algorithm.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Fix links to files in Documentation/* in various Kconfig files
Signed-off-by: NDirk Hohndel <hohndel@linux.intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This patch fix the follwing for 3945:
1. Fix direct scan by make sure we set one_direct_scan only when the
   mac80211 ask for direct scan.
2. Fix mac_stop and mac_remove_interface calles, we make sure we cancel any
   scan and disassoc on these call
Signed-off-by: NMohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes the following for 3945:
1. Make sure we cancel scan if RXON command is called.
2. Call scan abort on scan watchdog.
Signed-off-by: NMohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes the following problems for 4965:
1. Fix direct scan by make sure we set one_direct_scan only when the
   mac80211 ask for direct scan.
2. Fix mac_stop and mac_remove_interface calles, we make sure we cancel any
   scan and disassoc on these call.
Signed-off-by: NMohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fix the following:
1. make sure we are not scanning before we call REPLY_RXON
2. set RXON_FILTER_ASSOC_MSK only after we receive association response
3. call scan abort on scan watchdog instead of restart
Signed-off-by: NMohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch removeis TSF flag from probe request. TSF should be added only to
probe response.
Signed-off-by: NHelmut Schaa <hschaa@suse.de>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes setting of rates in probe request used in
HW scan. The bug was reported by Helmut Schaa <hschaa@suse.de>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes base rate needed for fixed rate operation in A band
Signed-off-by: NRon Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes two off-by-one errors resulting in array overflows
spotted by the Coverity checker.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch removes all double includes of the same file. This
makes scripts/checkincludes.pl happy.
Signed-off-by: NHolger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This "algorithm" is used only internally and is not useful.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Cc: Michael Buesch <mb@bu3sch.de>
Acked-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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

Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds rates scale statistics to debugfs:
$ cat /sys/kernel/debug/ieee80211/phy<X>/stations/<mac>/rate_stats_table
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds fixed rate setting through debugfs

$ echo <rate_n_flags> > \
/sys/kernel/debug/ieee80211/phy<X>/stations/<mac>/rate_scale_table

Currently there is no way to turn to rate scaling working again.
Will be fixed in later.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch cleans up rs_rate_scale_perform function. It removes dead
code, shortens variable names and removes useless return i.e. function
now returns void.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds supp_rate bit mask to rate scale sta private data structre
and thus removes sta from the argument list in helper functions.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch change printouts on TX path to the net_ratelimit version.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds read rate scale table debugfs function for 4965
rate scaling module.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds debugfs handler to rate scale algorithms.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch removes redundant memset in rate scale. In rs_alloc_sta,
kzalloc is used so the memset can be avoided. In rs_rate_init, it is
a bug fix since it overrides everything set in other handlers namely
add_debugfs.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

There were a few Firmware errors reported the most reproducible
http://bughost.org/bugzilla/show_bug.cgi?id=1471

The root cause is rate_n_flags isn't set anymore. This patch fixes
the problem.
Signed-off-by: NIan Schram <ischram@telenet.be>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes tiny typo in 4965 rate sacling algorithm
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch clears stations table for every rxon command.
It removes iwl_rxon_add_station function in 3945.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch takes out sending beacon from conditional in
config_ap function.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch repaces IPW with IWL in error messages.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>