linux.git/drivers/net, branch v4.9-rc8

geneve: avoid use-after-free of skb->data

2016-12-02T19:07:11+00:00

geneve{,6}_build_skb can end up doing a pskb_expand_head(), which
makes the ip_hdr(skb) reference we stashed earlier stale. Since it's
only needed as an argument to ip_tunnel_ecn_encap(), move this
directly in the function call.

Fixes: 08399efc6319 ("geneve: ensure ECN info is handled properly in all tx/rx paths")
Signed-off-by: Sabrina Dubroca 
Reviewed-by: John W. Linville 
Signed-off-by: David S. Miller

Merge tag 'linux-can-fixes-for-4.9-20161201' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

2016-12-02T19:02:13+00:00

Marc Kleine-Budde says:

====================
pull-request: can 2016-12-02

this is a pull request for net/master.

There are two patches by Stephane Grosjean, who adds support for the new
PCAN-USB X6 USB interface to the pcan_usb driver.
====================

Signed-off-by: David S. Miller

net: renesas: ravb: unintialized return value

2016-12-02T18:59:47+00:00

We want to set the other "err" variable here so that we can return it
later.  My version of GCC misses this issue but I caught it with a
static checker.

Fixes: 9f70eb339f52 ("net: ethernet: renesas: ravb: fix fixed-link phydev leaks")
Signed-off-by: Dan Carpenter 
Acked-by: Sergei Shtylyov 
Reviewed-by: Johan Hovold 
Signed-off-by: David S. Miller

sh_eth: remove unchecked interrupts for RZ/A1

2016-12-02T18:54:50+00:00

When streaming a lot of data and the RZ/A1 can't keep up, some status bits
will get set that are not being checked or cleared which cause the
following messages and the Ethernet driver to stop working. This
patch fixes that issue.

irq 21: nobody cared (try booting with the "irqpoll" option)
handlers:
[] sh_eth_interrupt
Disabling IRQ #21

Fixes: db893473d313a4ad ("sh_eth: Add support for r7s72100")
Signed-off-by: Chris Brandt 
Acked-by: Sergei Shtylyov 
Signed-off-by: David S. Miller

net: bcmgenet: Utilize correct struct device for all DMA operations

2016-12-02T18:53:34+00:00

__bcmgenet_tx_reclaim() and bcmgenet_free_rx_buffers() are not using the
same struct device during unmap that was used for the map operation,
which makes DMA-API debugging warn about it. Fix this by always using
&priv->pdev->dev throughout the driver, using an identical device
reference for all map/unmap calls.

Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

NET: usb: qmi_wwan: add support for Telit LE922A PID 0x1040

2016-12-02T18:42:12+00:00

This patch adds support for PID 0x1040 of Telit LE922A.

The qmi adapter requires to have DTR set for proper working,
so QMI_WWAN_QUIRK_DTR has been enabled.

Signed-off-by: Daniele Palmas 
Acked-by: Bjørn Mork 
Signed-off-by: David S. Miller

cdc_ether: Fix handling connection notification

2016-12-02T18:40:09+00:00

Commit bfe9b9d2df66 ("cdc_ether: Improve ZTE MF823/831/910 handling")
introduced a work-around in usbnet_cdc_status() for devices that exported
cdc carrier on twice on connect. Before the commit, this behavior caused
the link state to be incorrect. It was assumed that all CDC Ethernet
devices would either export this behavior, or send one off and then one on
notification (which seems to be the default behavior).

Unfortunately, it turns out multiple devices sends a connection
notification multiple times per second (via an interrupt), even when
connection state does not change. This has been observed with several
different USB LAN dongles (at least), for example 13b1:0041 (Linksys).
After bfe9b9d2df66, the link state has been set as down and then up for
each notification. This has caused a flood of Netlink NEWLINK messages and
syslog to be flooded with messages similar to:

cdc_ether 2-1:2.0 eth1: kevent 12 may have been dropped

This commit fixes the behavior by reverting usbnet_cdc_status() to how it
was before bfe9b9d2df66. The work-around has been moved to a separate
status-function which is only called when a known, affect device is
detected.

v1->v2:

* Do not open-code netif_carrier_ok() (thanks Henning Schild).
* Call netif_carrier_off() instead of usb_link_change(). This prevents
calling schedule_work() twice without giving the work queue a chance to be
processed (thanks Bjørn Mork).

Fixes: bfe9b9d2df66 ("cdc_ether: Improve ZTE MF823/831/910 handling")
Reported-by: Henning Schild 
Signed-off-by: Kristian Evensen 
Signed-off-by: David S. Miller

net: ethernet: altera: TSE: do not use tx queue lock in tx completion handler

2016-12-02T17:10:25+00:00

The driver already uses its private lock for synchronization between xmit
and xmit completion handler making the additional use of the xmit_lock
unnecessary.
Furthermore the driver does not set NETIF_F_LLTX resulting in xmit to be
called with the xmit_lock held and then taking the private lock while xmit
completion handler does the reverse, first take the private lock, then the
xmit_lock.
Fix these issues by not taking the xmit_lock in the tx completion handler.

Signed-off-by: Lino Sanfilippo 
Signed-off-by: David S. Miller

net: ethernet: altera: TSE: Remove unneeded dma sync for tx buffers

2016-12-02T17:10:24+00:00

An explicit dma sync for device directly after mapping as well as an
explicit dma sync for cpu directly before unmapping is unnecessary and
costly on the hotpath. So remove these calls.

Signed-off-by: Lino Sanfilippo 
Signed-off-by: David S. Miller

net: ethernet: stmmac: fix of-node and fixed-link-phydev leaks

2016-12-02T15:42:47+00:00

Make sure to deregister and free any fixed-link phy registered during
probe on probe errors and on driver unbind by adding a new glue helper
function.

Drop the of-node reference taken in the same path also on late probe
errors (and not just on driver unbind) by moving the put from
stmmac_dvr_remove() to the new helper.

Fixes: 277323814e49 ("stmmac: add fixed-link device-tree support")
Fixes: 4613b279bee7 ("ethernet: stmicro: stmmac: add missing of_node_put
after calling of_parse_phandle")
Signed-off-by: Johan Hovold 
Acked-by: Maxime Ripard 
Signed-off-by: David S. Miller