With previous patch "rtlwifi: use work for lps" we can now use mutex for
protecting ps mode changing critical sections. This fixes running system
with interrupts disabled for long time.

Merge ips_lock and lps_lock as they seems to protect the same data
structures (accessed in rtl_ps_set_rf_state() function).
Reported-by: NPhilipp Dreimann <philipp@dreimann.net>
Tested-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Mike McCormack <mikem@ring3k.org>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Tested-by: NTim Gardner <tim.gardner@canonical.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Leaving leisure power save mode can take some time, so it's better to
perform that action in process context with interrupts enabled. This
patch changes lps_leave tasklet to work.
Reported-by: NPhilipp Dreimann <philipp@dreimann.net>
Tested-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Mike McCormack <mikem@ring3k.org>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

In drivers rtl8192ce, rtl8192cu, rtl8192se, and rtl8192de, break
statements would allow ppsc->rfpwr_state to be changed to ERFSLEEP
even though the device is actually in ERFOFF.
Signed-off-by: NPhilipp Dreimann <philipp@dreimann.net>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

A previous commit fixed a problem whereby the rtl8192c driver loaded the
firmware from disk many times; however, the log message was not moved.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The recent discussion regarding an incorrect return of IRQ_HANDLED
from rt2800pci caused me to look at this PCI interrupt routine. I
discovered that changes were needed.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

rtl_lps_leave can be called from interrupt context, so we have to
disable interrupts when taking lps_lock.

Below is full lockdep info about deadlock:

[   93.815269] =================================
[   93.815390] [ INFO: inconsistent lock state ]
[   93.815472] 2.6.41.1-3.offch.fc15.x86_64.debug #1
[   93.815556] ---------------------------------
[   93.815635] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[   93.815743] swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[   93.815832]  (&(&rtlpriv->locks.lps_lock)->rlock){+.?...}, at: [<ffffffffa025dad6>] rtl_lps_leave+0x26/0x103 [rtlwifi]
[   93.815947] {SOFTIRQ-ON-W} state was registered at:
[   93.815947]   [<ffffffff8108e10d>] __lock_acquire+0x369/0xd0c
[   93.815947]   [<ffffffff8108efb3>] lock_acquire+0xf3/0x13e
[   93.815947]   [<ffffffff814e981d>] _raw_spin_lock+0x45/0x79
[   93.815947]   [<ffffffffa025de34>] rtl_swlps_rf_awake+0x5a/0x76 [rtlwifi]
[   93.815947]   [<ffffffffa025aec0>] rtl_op_config+0x12a/0x32a [rtlwifi]
[   93.815947]   [<ffffffffa01d614b>] ieee80211_hw_config+0x124/0x129 [mac80211]
[   93.815947]   [<ffffffffa01e0af3>] ieee80211_dynamic_ps_disable_work+0x32/0x47 [mac80211]
[   93.815947]   [<ffffffff81075aa5>] process_one_work+0x205/0x3e7
[   93.815947]   [<ffffffff81076753>] worker_thread+0xda/0x15d
[   93.815947]   [<ffffffff8107a119>] kthread+0xa8/0xb0
[   93.815947]   [<ffffffff814f3184>] kernel_thread_helper+0x4/0x10
[   93.815947] irq event stamp: 547822
[   93.815947] hardirqs last  enabled at (547822): [<ffffffff814ea1a7>] _raw_spin_unlock_irqrestore+0x45/0x61
[   93.815947] hardirqs last disabled at (547821): [<ffffffff814e9987>] _raw_spin_lock_irqsave+0x22/0x8e
[   93.815947] softirqs last  enabled at (547790): [<ffffffff810623ed>] _local_bh_enable+0x13/0x15
[   93.815947] softirqs last disabled at (547791): [<ffffffff814f327c>] call_softirq+0x1c/0x30
[   93.815947]
[   93.815947] other info that might help us debug this:
[   93.815947]  Possible unsafe locking scenario:
[   93.815947]
[   93.815947]        CPU0
[   93.815947]        ----
[   93.815947]   lock(&(&rtlpriv->locks.lps_lock)->rlock);
[   93.815947]   <Interrupt>
[   93.815947]     lock(&(&rtlpriv->locks.lps_lock)->rlock);
[   93.815947]
[   93.815947]  *** DEADLOCK ***
[   93.815947]
[   93.815947] no locks held by swapper/0.
[   93.815947]
[   93.815947] stack backtrace:
[   93.815947] Pid: 0, comm: swapper Not tainted 2.6.41.1-3.offch.fc15.x86_64.debug #1
[   93.815947] Call Trace:
[   93.815947]  <IRQ>  [<ffffffff814dfd00>] print_usage_bug+0x1e7/0x1f8
[   93.815947]  [<ffffffff8101a849>] ? save_stack_trace+0x2c/0x49
[   93.815947]  [<ffffffff8108d55c>] ? print_irq_inversion_bug.part.18+0x1a0/0x1a0
[   93.815947]  [<ffffffff8108dc8a>] mark_lock+0x106/0x220
[   93.815947]  [<ffffffff8108e099>] __lock_acquire+0x2f5/0xd0c
[   93.815947]  [<ffffffff810152af>] ? native_sched_clock+0x34/0x36
[   93.830125]  [<ffffffff810152ba>] ? sched_clock+0x9/0xd
[   93.830125]  [<ffffffff81080181>] ? sched_clock_local+0x12/0x75
[   93.830125]  [<ffffffffa025dad6>] ? rtl_lps_leave+0x26/0x103 [rtlwifi]
[   93.830125]  [<ffffffff8108efb3>] lock_acquire+0xf3/0x13e
[   93.830125]  [<ffffffffa025dad6>] ? rtl_lps_leave+0x26/0x103 [rtlwifi]
[   93.830125]  [<ffffffff814e981d>] _raw_spin_lock+0x45/0x79
[   93.830125]  [<ffffffffa025dad6>] ? rtl_lps_leave+0x26/0x103 [rtlwifi]
[   93.830125]  [<ffffffff81422467>] ? skb_dequeue+0x62/0x6d
[   93.830125]  [<ffffffffa025dad6>] rtl_lps_leave+0x26/0x103 [rtlwifi]
[   93.830125]  [<ffffffffa025f677>] _rtl_pci_ips_leave_tasklet+0xe/0x10 [rtlwifi]
[   93.830125]  [<ffffffff8106281f>] tasklet_action+0x8d/0xee
[   93.830125]  [<ffffffff810629ce>] __do_softirq+0x112/0x25a
[   93.830125]  [<ffffffff814f327c>] call_softirq+0x1c/0x30
[   93.830125]  [<ffffffff81010bf6>] do_softirq+0x4b/0xa1
[   93.830125]  [<ffffffff81062d7d>] irq_exit+0x5d/0xcf
[   93.830125]  [<ffffffff814f3b7e>] do_IRQ+0x8e/0xa5
[   93.830125]  [<ffffffff814ea533>] common_interrupt+0x73/0x73
[   93.830125]  <EOI>  [<ffffffff8108b825>] ? trace_hardirqs_off+0xd/0xf
[   93.830125]  [<ffffffff812bb6d5>] ? intel_idle+0xe5/0x10c
[   93.830125]  [<ffffffff812bb6d1>] ? intel_idle+0xe1/0x10c
[   93.830125]  [<ffffffff813f8d5e>] cpuidle_idle_call+0x11c/0x1fe
[   93.830125]  [<ffffffff8100e2ef>] cpu_idle+0xab/0x101
[   93.830125]  [<ffffffff814c6373>] rest_init+0xd7/0xde
[   93.830125]  [<ffffffff814c629c>] ? csum_partial_copy_generic+0x16c/0x16c
[   93.830125]  [<ffffffff81d4bbb0>] start_kernel+0x3dd/0x3ea
[   93.830125]  [<ffffffff81d4b2c4>] x86_64_start_reservations+0xaf/0xb3
[   93.830125]  [<ffffffff81d4b140>] ? early_idt_handlers+0x140/0x140
[   93.830125]  [<ffffffff81d4b3ca>] x86_64_start_kernel+0x102/0x111

Resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=755154

Reported-by: vjain02@students.poly.edu
Reported-and-tested-by: NOliver Paukstadt <pstadt@sourcentral.org>
Cc: stable@vger.kernel.org
Acked-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rtlwifi/usb.c: In function ‘_usb_read_sync’:
drivers/net/wireless/rtlwifi/usb.c:102:6: warning: ‘status’ may be used uninitialized in this function
drivers/net/wireless/rtlwifi/usb.c:102:6: note: ‘status’ was declared here

My compiler is dumb, but better to eliminate the warning than to have
anyone waste time evaluating this again...
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Acked-by: NLarry Finger <Larry.Finger@lwfinger.net>

The interrupt routine for PCI devices has a special exit that
executes the same instructions as does the normal exit.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Driver rtlwifi fails on a big-endian host.

These changes have been tested on a Mac PowerBook G4, which has
a PPC processor.

Although this patch touches some of the code that will affect endian
issues on PCI hardware through drivers rtl8192ce, rtl8192se, and
rtl8192de, these have not been tested due to lack of suitable hardware.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Driver rtl8192cu writes the firmware with 32-bit asynchronous writes. This
design is OK for USB 2.0 adapters, but the current implementation of
xhcu-hcd has a limited ring size, which is exceeded. By converting to
synchronous block writes, this error is avoided.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The USB driver does not retry reads - allow 10 tries.
Signed-off-by: NGeorge <george0505@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The latest vendor (non-mac80211) driver of 9/22/2011 shows some new
device IDs for rtl8192cu. In addition, some typos in the table are
fixed and one duplicate is removed.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NRichard Weinberger <richard@nod.at>

These were getting the macros from an implicit module.h
include via device.h, but we are planning to clean that up.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>

drivers/net: Add export.h to wireless/brcm80211/brcmfmac/bcmsdh.c

This relatively recently added file uses EXPORT_SYMBOL and hence
needs export.h included so that it is compatible with the module.h
split up work.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>

The device.h header was including module.h, making it present for
most of these drivers.  But we want to clean that up.  Call out the
include of module.h in the modular network drivers.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>

This patch incorporate the differences between the 06/20/2011 and
08/16/2011 Realtek releases of the rtl8192de driver.

The changes include:

1. Update for new chip versions
Signed-off-by: NChaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch incorporate the differences between the 06/20/2011 and
08/16/2011 Realtek releases of the rtl8192se driver.

The changes include:

1. Fixing some typos in register usage.
2. A change in the handling of decryption status for 802.11w packets.
Signed-off-by: NChaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch incorporate the differences between the 06/20/2011 and
08/16/2011 Realtek releases of the rtlwifi driver.

The changes include:

1. Adding new chip revisions including new firmware.
Signed-off-by: NChaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch incorporate the differences between the 06/20/2011 and
08/16/2011 Realtek releases of the rtlwifi driver.

The changes include:

1. Handling of IEEE80211_HW_CONNECTION_MONITOR.
2. Fix typo to get proper response to nullfunc frames.
Signed-off-by: NChaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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

The current debug parameter is applied to rtlwifi, which means that all
loaded drivers have the same level of debugging applied. In addition,
the previous method requires a two-step load process to enable debugging.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

tx params should be configured per interface.
add ieee80211_vif param to the conf_tx callback,
and change all the drivers that use this callback.

The following spatch was used:
@rule1@
struct ieee80211_ops ops;
identifier conf_tx_op;
@@
	ops.conf_tx = conf_tx_op;

@rule2@
identifier rule1.conf_tx_op;
identifier hw, queue, params;
@@
	conf_tx_op (
-		struct ieee80211_hw *hw,
+		struct ieee80211_hw *hw, struct ieee80211_vif *vif,
		u16 queue,
		const struct ieee80211_tx_queue_params *params) {...}
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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

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

TSF can be kept per vif.
Add ieee80211_vif param to set/get/reset_tsf, and move
the debugfs entries to the per-vif directory.

Update all the drivers that implement these callbacks.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Driver rtl8192cu assigns a new struct rtl_tcb_desc object, but fails to
clear it.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@kernel.org>  [2.6.39+]
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Three drivers, rtl8192ce, rtl8192cu and rtl8192de, use the same macro
to check if a particular rate is in the CCK set. This common code is
relocated to a common header file. A distinct macro used by rtl8192se
with the same name is renamed.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The various modparam messages are difficult to understand.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The various modparam messages are difficult to understand.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The various modparam messages are difficult to understand.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com>
Signed-off-by: NVitaliy Ivanov <vitalivanov@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

The driver fails to clear encryption keys making it impossible
to switch connections.
Signed-off-by: NGeorge <george0505@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@kernel.org>        [2.6.39+]
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The driver fails to connect to 802.11n-enabled APs. The patch fixes
Bug #42262.
Signed-off-by: NGeorge <george0505@realtek.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@kernel.org>        [2.6.39+]
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch also deletes the now unused parts of rtl8192de/def.h.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch also deletes the now unused parts of rtl8192se/def.h.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch also removes the now unused code from rtl8192ce/def.h.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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

In preparation for fixing the rate-mapping situation, place a driver-agnostic
version in rtlwifi. This one contains the updated rate incormation.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

No need to recompile the module anymore to set the debug level.
Signed-off-by: NStefan Assmann <sassmann@kpanic.de>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes several problems in the USB_DEVICE table, including missing IDs,
reversed vendor/product codes, and a duplicate ID.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>