linux-stable.git/drivers/net, branch v3.4.59

can: pcan_usb: fix wrong memcpy() bytes length

2013-08-20T15:26:28+00:00

commit 3c322a56b01695df15c70bfdc2d02e0ccd80654e upstream.

Fix possibly wrong memcpy() bytes length since some CAN records received from
PCAN-USB could define a DLC field in range [9..15].
In that case, the real DLC value MUST be used to move forward the record pointer
but, only 8 bytes max. MUST be copied into the data field of the struct
can_frame object of the skb given to the network core.

Signed-off-by: Stephane Grosjean 
Signed-off-by: Marc Kleine-Budde 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

iwl4965: reset firmware after rfkill off

2013-08-20T15:26:28+00:00

commit 788f7a56fce1bcb2067b62b851a086fca48a0056 upstream.

Using rfkill switch can make firmware unstable, what cause various
Microcode errors and kernel warnings. Reseting firmware just after
rfkill off (radio on) helped with that.

Resolve:
https://bugzilla.redhat.com/show_bug.cgi?id=977053

Reported-and-tested-by: Justin Pearce 
Signed-off-by: Stanislaw Gruszka 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

iwl4965: set power mode early

2013-08-20T15:26:28+00:00

commit eca396d7a5bdcc1fd67b1b12f737c213ac78a6f4 upstream.

If device was put into a sleep and system was restarted or module
reloaded, we have to wake device up before sending other commands.
Otherwise it will fail to start with Microcode error.

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

8139cp: Add dma_mapping_error checking

2013-08-11T22:38:45+00:00

[ Upstream commit cf3c4c03060b688cbc389ebc5065ebcce5653e96 ]

Self explanitory dma_mapping_error addition to the 8139 driver, based on this:
https://bugzilla.redhat.com/show_bug.cgi?id=947250

It showed several backtraces arising for dma_map_* usage without checking the
return code on the mapping.  Add the check and abort the rx/tx operation if its
failed.  Untested as I have no hardware and the reporter has wandered off, but
seems pretty straightforward.

Signed-off-by: Neil Horman 
CC: "David S. Miller" 
CC: Francois Romieu 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

usbnet: do not pretend to support SG/TSO

2013-08-11T22:38:44+00:00

[ Upstream commit 20f0170377264e8449b6987041f0bcc4d746d3ed ]

usbnet doesn't support yet SG, so drivers should not advertise SG or TSO
capabilities, as they allow TCP stack to build large TSO packets that
need to be linearized and might use order-5 pages.

This adds an extra copy overhead and possible allocation failures.

Current code ignore skb_linearize() return code so crashes are even
possible.

Best is to not pretend SG/TSO is supported, and add this again when/if
usbnet really supports SG for devices who could get a performance gain.

Based on a prior patch from Freddy Xin 

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

arcnet: cleanup sizeof parameter

2013-08-11T22:38:44+00:00

[ Upstream commit 087d273caf4f7d3f2159256f255f1f432bc84a5b ]

This patch doesn't change the compiled code because ARC_HDR_SIZE is 4
and sizeof(int) is 4, but the intent was to use the header size and not
the sizeof the header size.

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

mwifiex: Add missing endian conversion.

2013-08-11T22:38:42+00:00

commit 83e612f632c3897be29ef02e0472f6d63e258378 upstream.

Both type and pkt_len variables are in host endian and these should be in
Little Endian in the payload.

Signed-off-by: Tomasz Moń 
Acked-by: Bing Zhao 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

rt2x00: fix stop queue

2013-08-11T22:38:42+00:00

commit e2288b66fe7ff0288382b2af671b4da558b44472 upstream.

Since we clear QUEUE_STARTED in rt2x00queue_stop_queue(), following
call to rt2x00queue_pause_queue() reduce to noop, i.e we do not
stop queue in mac80211.

To fix that introduce rt2x00queue_pause_queue_nocheck() function,
which will stop queue in mac80211 directly.

Note that rt2x00_start_queue() explicitly set QUEUE_PAUSED bit.

Note also that reordering operations i.e. first call to
rt2x00queue_pause_queue() and then clear QUEUE_STARTED bit, will race
with rt2x00queue_unpause_queue(), so calling ieee80211_stop_queue()
directly is the only available solution to fix the problem without
major rework.

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

ixgbe: Fix Tx Hang issue with lldpad on 82598EB

2013-08-11T22:38:42+00:00

commit 1eb9ac14c34a948bf1538bfb9034e8ab29099a64 upstream.

This patch fixes an issue with the 82598EB device, where lldpad is causing Tx
Hangs on the card as soon as it attempts to configure DCB for the device. The
adapter will continually Tx hang and reset in a loop.

Signed-off-by: Jacob Keller 
Tested-by: Phil Schmitt 
Tested-by: Jack Morgan 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

ath9k_htc: do some initial hardware configuration

2013-08-11T22:38:41+00:00

commit dc2a87f519a4d8cb376ab54f22b6b98a943b51ce upstream.

Currently we configure harwdare and clock, only after
interface start. In this case, if we reload module or
reboot PC without configuring adapter, firmware will freeze.
There is no software way to reset adpter.

This patch add initial configuration and set it in
disabled state, to avoid this freeze. Behaviour of this patch
should be similar to: ifconfig wlan0 up; ifconfig wlan0 down.

Bug: https://github.com/qca/open-ath9k-htc-firmware/issues/1
Tested-by: Bo Shi 
Signed-off-by: Oleksij Rempel 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman