linux-stable.git/drivers/net, branch v3.2.16

pch_gbe: memory corruption calling pch_gbe_validate_option()

2012-04-22T22:31:14+00:00

commit 73f98eab9b9e0bab492ca06add5657d9e702ddb1 upstream.

pch_gbe_validate_option() modifies 32 bits of memory but we pass
&hw->phy.autoneg_advertised which only has 16 bits and &hw->mac.fc
which only has 8 bits.

Signed-off-by: Dan Carpenter 
Signed-off-by: David S. Miller 
Signed-off-by: Tomoya MORINAGA 
Signed-off-by: Greg Kroah-Hartman

pch_gbe: Do not abort probe on bad MAC

2012-04-22T22:31:13+00:00

commit 2b53d07891630dead46d65c8f896955fd3ae0302 upstream.

If the MAC is invalid or not implemented, do not abort the probe. Issue
a warning and prevent bringing the interface up until a MAC is set manually
(via ifconfig $IFACE hw ether $MAC).

Tested on two platforms, one with a valid MAC, the other without a MAC. The real
MAC is used if present, the interface fails to come up until the MAC is set on
the other. They successfully get an IP over DHCP and pass a simple ping and
login over ssh test.

This is meant to allow the Inforce SYS940X development board:
http://www.inforcecomputing.com/SYS940X_ECX.html
(and others suffering from a missing MAC) to work with the mainline kernel.
Without this patch, the probe will fail and the interface will not be created,
preventing the user from configuring the MAC manually.

This does not make any attempt to address a missing or invalid MAC for the
pch_phub driver.

Signed-off-by: Darren Hart 
CC: Arjan van de Ven 
CC: Alan Cox 
CC: Tomoya MORINAGA 
CC: Jeff Kirsher 
CC: "David S. Miller" 
CC: Paul Gortmaker 
CC: Jon Mason 
CC: Mark Brown 
CC: David Laight 
CC: Joe Perches 
Signed-off-by: David S. Miller 
Signed-off-by: Tomoya MORINAGA 
Signed-off-by: Greg Kroah-Hartman

ath9k: fix max noise floor threshold

2012-04-22T22:31:11+00:00

commit 2ee0a07028d2cde6e131b73f029dae2b93c50f3a upstream.

Currently the maximum noise floor limit is set as too high (-60dB). The
assumption of having a higher threshold limit is that it would help
de-sensitize the receiver (reduce phy errors) from continuous
interference. But when we have a bursty interference where there are
collisions and then free air time and if the receiver is desensitized too
much, it will miss the normal packets too. Lets make use of chips
specific min, nom and max limits always. This patch helps to improve the
connection stability in congested networks.

Cc: Paul Stewart 
Tested-by: Gary Morain 
Signed-off-by: Madhan Jaganathan 
Signed-off-by: Rajkumar Manoharan 
Signed-off-by: John W. Linville 
[bwh: Backported to 3.0/3.2: adjust context]
Signed-off-by: Ben Hutchings 
Signed-off-by: Greg Kroah-Hartman

rtlwifi: Add missing DMA buffer unmapping for PCI drivers

2012-04-22T22:30:57+00:00

commit 673f7786e205c87b5d978c62827b9a66d097bebb upstream.

In https://bugzilla.kernel.org/show_bug.cgi?id=42976, a system with driver
rtl8192se used as an AP suffers from "Out of SW-IOMMU space" errors. These
are caused by the DMA buffers used for beacons never being unmapped.

This bug was also reported at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/961618

Reported-and-Tested-by: Da Xue 
Signed-off-by: Larry Finger 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

USB: Add Motorola Rokr E6 Id to the USBNet driver "zaurus"

2012-04-13T15:33:50+00:00

commit a2daf263107ba3eb6db33931881731fa51c95045 upstream.

Added Vendor/Device Id of Motorola Rokr E6 (22b8:6027) so it can be
recognized by the "zaurus" USBNet driver.
Applies to Linux 3.2.13 and 2.6.39.4.
Signed-off-by: Guan Xin 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

r8169: runtime resume before shutdown.

2012-04-13T15:33:48+00:00

commit 2a15cd2ff488a9fdb55e5e34060f499853b27c77 upstream.

With runtime PM, if the ethernet cable is disconnected, the device is
transitioned to D3 state to conserve energy. If the system is shutdown
in this state, any register accesses in rtl_shutdown are dropped on
the floor. As the device was programmed by .runtime_suspend() to wake
on link changes, it is thus brought back up as soon as the link recovers.

Resuming every suspended device through the driver core would slow things
down and it is not clear how many devices really need it now.

Original report and D0 transition patch by Sameer Nanda. Patch has been
changed to comply with advices by Rafael J. Wysocki and the PM folks.

Reported-by: Sameer Nanda 
Signed-off-by: Francois Romieu 
Cc: Rafael J. Wysocki 
Cc: Hayes Wang 
Cc: Alan Stern 
Acked-by: Rafael J. Wysocki 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

rtlwifi: rtl8192ce: rtl8192cu: rtl8192de: Fix low-gain setting when scanning

2012-04-13T15:33:47+00:00

commit 643c61e119459e9d750087b7b34be94491efebf9 upstream.

In https://bugzilla.redhat.com/show_bug.cgi?id=770207, slowdowns of driver
rtl8192ce are reported. One fix (commit a9b89e2) has already been applied,
and it helped, but the maximum RX speed would still drop to 1 Mbps. As in
the previous fix, the initial gain was determined to be the problem; however,
the problem arises from a setting of the gain when scans are started.

Driver rtl8192de also has the same code structure - this one is fixed as well.

Reported-and-Tested-by: Ivan Pesin 
Signed-off-by: Larry Finger 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

Fix non TBI PHY access; a bad merge undid bug fix in a previous commit.

2012-04-13T15:33:45+00:00

[ Upstream commit 464b57da56910c8737ede75ad820b9a7afc46b3e ]

The merge done in commit b26e478f undid bug fix in commit c3e072f8
("net: fsl_pq_mdio: fix non tbi phy access"), with the result that non
TBI (e.g. MDIO) PHYs cannot be accessed.

Signed-off-by: Kenth Eriksson 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

net: usb: cdc_eem: fix mtu

2012-04-13T15:33:45+00:00

[ Upstream commit 78fb72f7936c01d5b426c03a691eca082b03f2b9 ]

Make CDC EEM recalculate the hard_mtu after adjusting the
hard_header_len.

Without this, usbnet adjusts the MTU down to 1494 bytes, and the host is
unable to receive standard 1500-byte frames from the device.

Tested with the Linux USB Ethernet gadget.

Cc: Oliver Neukum 
Signed-off-by: Rabin Vincent 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

sky2: dont overwrite settings for PHY Quick link

2012-04-13T15:33:45+00:00

[ Upstream commit 2240eb4ae3dc4acff20d1a8947c441c451513e37 ]

This patch corrects a bug in function sky2_open() of the Marvell Yukon 2 driver
in which the settings for PHY quick link are overwritten.

Signed-off-by: Lino Sanfilippo 
Acked-by: Stephen Hemminger 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman