linux-stable.git/drivers/net/wireless, branch v3.18.17

iwlwifi: pcie: prevent using unmapped memory in fw monitor

2015-06-10T17:42:41+00:00

[ Upstream commit 553452e5ffc0ed13214a287549627d02d9d7fbdc ]

In the case of a DMA mapping error on the last iteration of
the loop of the allocation of memory of the FW monitor we
indeed free the pages, but don't NULL out the page variable
thus allowing for the possibility of setting the FW monitor
variables with invalid data to use.

Fixes: c2d202017da1 ("iwlwifi: pcie: add firmware monitor capabilities")
Signed-off-by: Liad Kaufman 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Sasha Levin

rtlwifi: rtl8192cu: Fix kernel deadlock

2015-06-10T17:42:38+00:00

[ Upstream commit 414b7e3b9ce8b0577f613e656fdbc36b34b444dd ]

The USB mini-driver in rtlwifi, which is used by rtl8192cu, issues a call to
usb_control_msg() with a timeout value of 0. In some instances where the
interface is shutting down, this infinite wait results in a CPU deadlock. A
one second timeout fixes this problem without affecting any normal operations.

This bug is reported at https://bugzilla.novell.com/show_bug.cgi?id=927786.

Reported-by: Bernhard Wiedemann 
Tested-by: Bernhard Wiedemann 
Signed-off-by: Larry Finger 
Cc: Stable 
Cc: Bernhard Wiedemann 
Cc: Takashi Iwai
Signed-off-by: Kalle Valo 
Signed-off-by: Sasha Levin

rt2x00: add new rt2800usb device DWA 130

2015-06-10T17:42:27+00:00

[ Upstream commit ea345c145ff23197eab34d0c4d0c8a93d7bea8c6 ]

Add the USB Id to link the D-Link DWA 130 USB Wifi adapter
to the rt2830 driver.

Signed-off-by: Scott Branden 
Signed-off-by: Pieter Truter 
Signed-off-by: Kalle Valo 
Signed-off-by: Sasha Levin

rtlwifi: rtl8192ee: Fix handling of new style descriptors

2015-05-17T23:12:31+00:00

[ Upstream commit d0311314d00298f83aa5450a1d4a92889e7cc2ea ]

The hardware and firmware for the RTL8192EE utilize a FIFO list of
descriptors. There were some problems with the initial implementation.
The worst of these failed to detect that the FIFO was becoming full,
which led to the device needing to be power cycled. As this condition
is not relevant to most of the devices supported by rtlwifi, a callback
routine was added to detect this situation. This patch implements the
necessary changes in the pci handler, and the linkage into the appropriate
rtl8192ee routine.

Signed-off-by: Troy Tan 
Signed-off-by: Larry Finger 
Cc: Stable  [V3.18]
Signed-off-by: Kalle Valo 
Signed-off-by: Sasha Levin

wl18xx: show rx_frames_per_rates as an array as it really is

2015-05-17T23:12:28+00:00

[ Upstream commit a3fa71c40f1853d0c27e8f5bc01a722a705d9682 ]

In struct wl18xx_acx_rx_rate_stat, rx_frames_per_rates field is an
array, not a number.  This means WL18XX_DEBUGFS_FWSTATS_FILE can't be
used to display this field in debugfs (it would display a pointer, not
the actual data).  Use WL18XX_DEBUGFS_FWSTATS_FILE_ARRAY instead.

This bug has been found by adding a __printf attribute to
wl1271_format_buffer.  gcc complained about "format '%u' expects
argument of type 'unsigned int', but argument 5 has type 'u32 *'".

Fixes: c5d94169e818 ("wl18xx: use new fw stats structures")
Signed-off-by: Nicolas Iooss 
Signed-off-by: Kalle Valo 
Signed-off-by: Sasha Levin

rtlwifi: rtl8192cu: Add new device ID

2015-05-17T23:12:07+00:00

[ Upstream commit 9374e7d2fdcad3c36dafc8d3effd554bc702c4b6 ]

Add new ID for ASUS N10 WiFi dongle.

Signed-off-by: Marek Vasut 
Tested-by: Marek Vasut 
Cc: Larry Finger 
Cc: John W. Linville 
Acked-by: Larry Finger 
Signed-off-by: Kalle Valo 
Signed-off-by: Sasha Levin

rtlwifi: rtl8192cu: Add new USB ID

2015-05-17T23:12:07+00:00

[ Upstream commit 2f92b314f4daff2117847ac5343c54d3d041bf78 ]

USB ID 2001:330d is used for a D-Link DWA-131.

Signed-off-by: Larry Finger 
Cc: Stable 
Signed-off-by: Kalle Valo 
Signed-off-by: Sasha Levin

rtlwifi: Fix IOMMU mapping leak in AP mode

2015-04-24T21:14:02+00:00

[ Upstream commit be0b5e635883678bfbc695889772fed545f3427d ]

Transmission of an AP beacon does not call the TX interrupt service routine,
which usually does the cleanup. Instead, cleanup is handled in a tasklet
completion routine. Unfortunately, this routine has a serious bug in that it does
not release the DMA mapping before it frees the skb, thus one IOMMU mapping is
leaked for each beacon. The test system failed with no free IOMMU mapping slots
approximately one hour after hostapd was used to start an AP.

This issue was reported and tested at https://github.com/lwfinger/rtlwifi_new/issues/30.

Reported-and-tested-by: Kevin Mullican 
Cc: Kevin Mullican 
Signed-off-by: Shao Fu 
Signed-off-by: Larry Finger 
Cc: Stable   [3.18+]
Signed-off-by: Kalle Valo 
Signed-off-by: Sasha Levin

ath9k: fix tracking of enabled AP beacons

2015-04-24T21:13:54+00:00

[ Upstream commit 1cf48f22c98ae24a49a3f1b6900e4c9a9a0fcc62 ]

sc->nbcnvifs tracks assigned beacon slots, not enabled beacons.
Therefore, it cannot be used to decide if cur_conf->enable_beacon (bool)
should be updated, or if beacons have been enabled already.
With the current code (depending on the order of calls), beacons often
do not get enabled in an AP+STA setup.
To fix tracking of enabled beacons, convert cur_conf->enable_beacon to a
bitmask of enabled beacon slots.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau 
Signed-off-by: Kalle Valo 
Signed-off-by: Sasha Levin

iwlwifi: dvm: run INIT firmware again upon .start()

2015-04-23T18:58:25+00:00

[ Upstream commit 9c8928f5176766bec79f272bd47b7124e11cccbd ]

The assumption before this patch was that we don't need to
run again the INIT firmware after the system booted. The
INIT firmware runs calibrations which impact the physical
layer's behavior.
Users reported that it may be helpful to run these
calibrations again every time the interface is brought up.
The penatly is minimal, since the calibrations run fast.
This fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=94341

CC: 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Sasha Levin