linux-stable.git/drivers/net/wireless, branch v3.0.2

ath9k: fix a misprint which leads to incorrect calibration

2011-08-16T01:31:43+00:00

commit 118c9db51e7acaf8f16deae8311cce6588b83e31 upstream.

This patch addresses an issue with incorrect HW register
AR_PHY_TX_IQCAL_CORR_COEFF_B1 definition which leads to incorrect clibration.

Signed-off-by: Alex Hacker 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

ath9k_hw: Fix incorrect Tx control power in AR9003 template

2011-08-16T01:31:43+00:00

commit 15052f81d255eac44e745bc630b36aa86779ad9d upstream.

CTL power data incorrect in ctlPowerData_2G field of ar9300_eeprom.
Setting incorrect CTL power in calibration is causing lower tx power.
Tx power was reported as 3dBm while operating in channel 6 HT40+/
in channel 11 HT40- due to CTL powers in the calibration is set to
zero.

Signed-off-by: Rajkumar Manoharan 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

iwlagn: 5000 do not support idle mode

2011-08-16T01:31:39+00:00

commit f35291082294ca6737953bbe4e9491ede04ab822 upstream.

5000 series has issue supporting power save idle mode:
commit	9dc2153315650eae220898668b6aa56a25c130be

iwlwifi: always support idle mode for agn devices

For agn devices, always support idle mode which help power
consumption in idle unassociated state.

the above changes cause 5000 become not stable when power management is "on"

http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2312

Reported-by: Devin J. Pohly 
Signed-off-by: Wey-Yi Guy 
Signed-off-by: John W. Linville 
Signed-off-by: Devin J. Pohly 
Signed-off-by: Greg Kroah-Hartman

net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared

2011-08-16T01:31:38+00:00

[ Upstream commit 550fd08c2cebad61c548def135f67aba284c6162 ]

After the last patch, We are left in a state in which only drivers calling
ether_setup have IFF_TX_SKB_SHARING set (we assume that drivers touching real
hardware call ether_setup for their net_devices and don't hold any state in
their skbs.  There are a handful of drivers that violate this assumption of
course, and need to be fixed up.  This patch identifies those drivers, and marks
them as not being able to support the safe transmission of skbs by clearning the
IFF_TX_SKB_SHARING flag in priv_flags

Signed-off-by: Neil Horman 
CC: Karsten Keil 
CC: "David S. Miller" 
CC: Jay Vosburgh 
CC: Andy Gospodarek 
CC: Patrick McHardy 
CC: Krzysztof Halasa 
CC: "John W. Linville" 
CC: Greg Kroah-Hartman 
CC: Marcel Holtmann 
CC: Johannes Berg 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

ath9k: skip ->config_pci_powersave() if PCIe port has ASPM disabled

2011-08-16T01:31:33+00:00

commit d4930086bdd0c08a8b3a4d66a9c702297cb74a99 upstream.

We receive many bug reports about system hang during suspend/resume
when ath9k driver is in use. Adrian Chadd remarked that this problem
happens on systems that have ASPM disabled.

To do not hit the bug, skip doing ->config_pci_powersave magic if PCIe
downstream port device, which ath9k device is connected to, has ASPM
disabled.

Bug was introduced by:

commit 53bc7aa08b48e5cd745f986731cc7dc24eef2a9f
Author: Vivek Natarajan 
Date:   Mon Apr 5 14:48:04 2010 +0530

    ath9k: Add support for newer AR9285 chipsets.

Patch should address:
https://bugzilla.kernel.org/show_bug.cgi?id=37462
https://bugzilla.kernel.org/show_bug.cgi?id=37082
https://bugzilla.redhat.com/show_bug.cgi?id=697157

however I did not receive confirmation about that, except from Camilo
Mesias, whose system stops hang regularly with this patch (but still
hangs from time to time, but this is probably some other bug).

Tested-by: Camilo Mesias 
Signed-off-by: Stanislaw Gruszka 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

ath9k: initialize tx chainmask before testing channel tx power values

2011-08-16T01:31:33+00:00

commit c1227340ca65c2069222a956a68b6842d460c4f4 upstream.

With an uninitialized chainmask, the per-channel power will only contain
the power limits for a single chain instead of the combined tx power.

Signed-off-by: Felix Fietkau 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

iwlegacy: set tx power after rxon_assoc

2011-08-16T01:31:33+00:00

commit 17e859a899712d16c3e70b045d61ad9e02c53f8a upstream.

If settings of tx power was deferred during scan or changing channel we
have to setup them during commit rxon. Fix problem on 3945 (4965 already
has this fix).

Optimize code to apply tx settings only when tx power was actually
changed.

Signed-off-by: Stanislaw Gruszka 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

rtlwifi: Fix kernel oops on ARM SOC

2011-08-16T01:31:33+00:00

commit b6b67df3f24c45af0012ee3c8af2f62ca083ae18 upstream.

This driver uses information from the self member of the pci_bus struct to
get information regarding the bridge to which the PCIe device is attached.
Unfortunately, this member is not established on all architectures, which
leads to a kernel oops.

Skipping the entire block that uses the self member to determine the bridge
vendor will only affect RTL8192DE devices as that driver sets the ASPM support
flag differently when the bridge vendor is Intel. If the self member is
available, there is no functional change.

This patch fixes Bugzilla No. 40212.

Reported-by: Hubert Liao 
Signed-off-by: Larry Finger 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

rt2x00: fix usage of NULL queue

2011-08-16T01:31:32+00:00

commit 00898a47269ae5e6dda04defad00234b96692d95 upstream.

We may call rt2x00queue_pause_queue(queue) with queue == NULL. Bug
was introduced by commit 62fe778412b36791b7897cfa139342906fbbf07b
"rt2x00: Fix stuck queue in tx failure case" .

Signed-off-by: Stanislaw Gruszka 
Acked-by: Ivo van Doorn 
Acked-by: Gertjan van Wingerde 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

rt2x00: rt2800: fix zeroing skb structure

2011-08-16T01:31:32+00:00

commit b52398b6e4522176dd125722c72c301015d24520 upstream.

We should clear skb->data not skb itself. Bug was introduced by:
commit 0b8004aa12d13ec750d102ba4082a95f0107c649 "rt2x00: Properly
reserve room for descriptors in skbs".

Signed-off-by: Stanislaw Gruszka 
Acked-by: Gertjan van Wingerde 
Acked-by: Ivo van Doorn 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman