linux-stable.git/drivers/net/wireless, branch v3.2.40

b43: Increase number of RX DMA slots

2013-03-06T03:24:04+00:00

commit ccae0e50c16a7f7adb029c169147400d1ce9f703 upstream.

Bastian Bittorf reported that some of the silent freezes on a Linksys WRT54G
were due to overflow of the RX DMA ring buffer, which was created with 64
slots. That finding reminded me that I was seeing similar crashed on a netbook,
which also has a relatively slow processor. After increasing the number of
slots to 128, runs on the netbook that previously failed now worked; however,
I found that 109 slots had been used in one test. For that reason, the number
of slots is being increased to 256.

Signed-off-by: Larry Finger 
Cc: Bastian Bittorf 
Signed-off-by: David S. Miller 
Signed-off-by: Ben Hutchings

rtlwifi: usb: allocate URB control message setup_packet and data buffer separately

2013-03-06T03:24:03+00:00

commit bc6b89237acb3dee6af6e64e51a18255fef89cc2 upstream.

rtlwifi allocates both setup_packet and data buffer of control message urb,
using shared kmalloc in _usbctrl_vendorreq_async_write. Structure used for
allocating is:
	struct {
		u8 data[254];
		struct usb_ctrlrequest dr;
	};

Because 'struct usb_ctrlrequest' is __packed, setup packet is unaligned and
DMA mapping of both 'data' and 'dr' confuses ARM/sunxi, leading to memory
corruptions and freezes.

Patch changes setup packet to be allocated separately.

[v2]:
 - Use WARN_ON_ONCE instead of WARN_ON

Signed-off-by: Jussi Kivilinna 
Signed-off-by: John W. Linville 
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings

rtlwifi: rtl8192cu: Add new USB ID

2013-03-06T03:23:53+00:00

commit 8708aac79e4572ba673d7a21e94ddca9f3abb7fc upstream.

A new model of the RTL8188CUS has appeared.

Reported-and-tested-by: Thomas Rosenkrantz 
Signed-off-by: Larry Finger 
Signed-off-by: John W. Linville 
Signed-off-by: Ben Hutchings

rtlwifi: rtl8192cu: Fix NULL dereference BUG when using new_id

2013-03-06T03:23:53+00:00

commit 957f4aca5fa0db69635271bc4621cc0b65b2d590 upstream.

When the new_id entry in /sysfs is used for a foreign USB device, rtlwifi
BUGS with a NULL pointer dereference because the per-driver configuration
data is not available. The probe function has been restructured as
suggested by Ben Hutchings .

Signed-off-by: Larry Finger 
Signed-off-by: John W. Linville 
[bwh: Backported to 3.2: adjust context, indentation]
Signed-off-by: Ben Hutchings

p54usb: corrected USB ID for T-Com Sinus 154 data II

2013-03-06T03:23:53+00:00

commit 008e33f733ca51acb2dd9d88ea878693b04d1d2a upstream.

Corrected USB ID for T-Com Sinus 154 data II. ISL3887-based. The
device was tested in managed mode with no security, WEP 128
bit and WPA-PSK (TKIP) with firmware 2.13.1.0.lm87.arm (md5sum:
7d676323ac60d6e1a3b6d61e8c528248). It works.

Signed-off-by: Tomasz Guszkowski 
Acked-By: Christian Lamparter 
Signed-off-by: John W. Linville 
Signed-off-by: Ben Hutchings

rt2800usb: Add support for 2001:3c1e (D-Link DWA-125 rev B1) USB Wi-Fi adapter

2013-02-20T03:15:27+00:00

commit fd7b9270120ca7e53fbf0469febe0c68acf6a0a2 upstream.

D-Link DWA-125/B1 is a relatively new USB Wi-Fi adapter, using a
Ralink chipset supported by the rt2800usb driver. Currently, to work
around the problem (it's missing in all present kernel versions,
up to and including 3.7.x), I had to add this to /etc/rc.local:

echo 2001 3c1e >> /sys/bus/usb/drivers/rt2800usb/new_id

After that, the device works without problems. Been using it for over
a week with no bugs in sight.

The attached patch is trivial and simply adds the new USB ID to the
list of devices handled by rt2800usb.

Signed-off-by: Maia Kozheva 
Signed-off-by: John W. Linville 
Signed-off-by: Ben Hutchings

Wireless: rt2x00: Add device id for Sweex LW323 to rt2800usb.c

2013-02-20T03:15:27+00:00

commit 36f318bb124b231c01db6965a009f46d5731f012 upstream.

This patch adds detection for the Sweex LW323 USB wireless network card
in the rt2x00 driver (just one line in rt2800usb.c).
It applies to linux-3.7-rc3.

Signed-off-by: Jaume Delclòs 
Signed-off-by: John W. Linville 
Signed-off-by: Ben Hutchings

wireless: rt2x00: rt{2500,73}usb.c put back duplicate id

2013-02-20T03:15:27+00:00

commit 8f35f787b75e9b6435ea37dabcae2d40dc72d31c upstream.

put back 0x050d,0x7050 to rt73usb, same usb_id for two chips:

K7SF5D7050A ver 2xxx is rt2500
K7SF5D7050B ver 3xxx is rt73



Signed-off-by: Xose Vazquez Perez 
Signed-off-by: John W. Linville 
Signed-off-by: Ben Hutchings

mwifiex: fix incomplete scan in case of IE parsing error

2013-02-20T03:15:21+00:00

commit 8a7d7cbf7b5ff9912ef50b3e94c9ad9f37b1c75f upstream.

A scan request is split into multiple scan commands queued in
scan_pending_q. Each scan command will be sent to firmware and
its response is handlded one after another.

If any error is detected while parsing IE in command response
buffer the remaining data will be ignored and error is returned.

We should check if there is any more scan commands pending in
the queue before returning error. This ensures that we will call
cfg80211_scan_done if this is the last scan command, or send
next scan command in scan_pending_q to firmware.

Signed-off-by: Bing Zhao 
Signed-off-by: Amitkumar Karwar 
Signed-off-by: John W. Linville 
Signed-off-by: Ben Hutchings

rtlwifi: Fix the usage of the wrong variable in usb.c

2013-02-20T03:15:20+00:00

commit 0a06ad8e3a1cb5311b7dbafde45410aa1bce9d40 upstream.

In routine _rtl_rx_pre_process(), skb_dequeue() is called to get an skb;
however, the wrong variable name is used in subsequent calls.

Reported-by: Guenter Roeck 
Signed-off-by: Larry Finger 
Cc: Guenter Roeck 
Signed-off-by: John W. Linville 
Signed-off-by: Ben Hutchings