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49,601 commits

Author SHA1 Message Date
Andreea-Cristina Bernat
270b4b3115 cnic: Replace rcu_dereference() with rcu_access_pointer()
The "rcu_dereference()" calls are used directly in conditions.
Since their return values are never dereferenced it is recommended to use
"rcu_access_pointer()" instead of "rcu_dereference()".
Therefore, this patch makes the replacements.

The following Coccinelle semantic patch was used:
@@
@@

(
 if(
 (<+...
- rcu_dereference
+ rcu_access_pointer
  (...)
  ...+>)) {...}
|
 while(
 (<+...
- rcu_dereference
+ rcu_access_pointer
  (...)
  ...+>)) {...}
)

Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 12:23:10 -07:00
Haiyang Zhang
f90251c8a6 hyperv: Increase the buffer length for netvsc_channel_cb()
When the buffer is too small for a packet from VMBus, a bigger buffer will be
allocated in netvsc_channel_cb() and retry reading the packet from VMBus.
Increasing this buffer size will reduce the retry overhead.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 12:23:09 -07:00
Rasmus Villemoes
7d149c5268 net: ethernet: broadcom: bnx2x: Remove redundant #ifdef
Nothing defines _ASM_GENERIC_INT_L64_H, it is a weird way to check for
64 bit longs, and u64 should be printed using %llx anyway.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:29:58 -07:00
Anton Blanchard
cbd5228199 ibmveth: Fix endian issues with rx_no_buffer statistic
Hidden away in the last 8 bytes of the buffer_list page is a solitary
statistic. It needs to be byte swapped or else ethtool -S will
produce numbers that terrify the user.

Since we do this in multiple places, create a helper function with a
comment explaining what is going on.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:28:00 -07:00
Iyappan Subramanian
c10e4cafa2 net: xgene: fix possible NULL dereference in xgene_enet_free_desc_rings()
A NULL pointer dereference is possible for the argument ring->buf_pool
which is passed to xgene_enet_free_desc_ring(), as ring could be NULL.

And now since NULL pointers are being checked for before the calls to
xgene_enet_free_desc_ring(), might as well take advantage of them and
not call the function if the argument would be NULL.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:25:25 -07:00
Nimrod Andy
91c0d987a9 net: fec: ptp: avoid register access when ipg clock is disabled
The current kernel hang on i.MX6SX with rootfs mount from MMC.
The root cause is that ptp uses a periodic timer to access enet register
even if ipg clock is disabled.

FEC ptp driver start one period timer to read 1588 counter register in the
ptp init function that is called after FEC driver is probed.

To save power, after FEC probe finish, FEC driver disable all clocks including
ipg clock that is needed for register access.

i.MX5x, i.MX6q/dl/sl FEC register access don't cause system hang when ipg clock
is disabled, just return zero value. But for i.MX6sx SOC, it cause system hang.

To avoid the issue, we need to check ptp clock status before ptp timer count access.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 10:45:56 -07:00
Hariprasad Shenai
08f1a1b9d1 cxgb4: Free completed tx skbs promptly
Description of problem:
The NIC card is not reporting back to the driver the transmitted skbs,
so they get stuck in the TX ring causing issues with reference
counters in other kernel components.

Developed a new Automatic Egress Queue Update firmware facility to slowly tick
through Egress Queues and send back any outstanding CIDX Updates which are
laying around.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 21:54:52 -07:00
David S. Miller
215a004c61 linux-can-fixes-for-3.17-20140821
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Merge tag 'linux-can-fixes-for-3.17-20140821' of git://gitorious.org/linux-can/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2014-08-21

The first patch is from Mirza Krak, it fixes the initialization of the hardware
in the sja1000 driver. The next patch is contributed by Dan Carpenter, it fixes
the error handling in the c_can's probe function. Then there are two patches
for the flexcan driver, one by Alexander Stein, which fixes the resetting of
the bus error interrupt mask, the other one by Sebastian Andrzej Siewior which
adds an additional error state transition message.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 21:53:15 -07:00
Anish Bhatt
29aaee65bc cxgb4: Fix race condition in cleanup
There is a possible race condition when we unregister the PCI Driver and then
flush/destroy the global "workq". This could lead to situations where there
are tasks on the Work Queue with references to now deleted adapter data
structures. Instead, have per-adapter Work Queues which were instantiated and
torn down in init_one() and remove_one(), respectively.

v2: Remove unnecessary call to flush_workqueue() before destroy_workqueue()

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 21:45:36 -07:00
Yuval Mintz
7c3afd85dc bnx2x: Revert UNDI flushing mechanism
Commit 91ebb929b6 ("bnx2x: Add support for Multi-Function UNDI") [which was
later supposedly fixed by de682941ee ("bnx2x: Fix UNDI driver unload")]
introduced a bug in which in some [yet-to-be-determined] scenarios the
alternative flushing mechanism which was to guarantee the Rx buffers are
empty before resetting them during device probe will fail.
If this happens, when device will be loaded once more a fatal attention will
occur; Since this most likely happens in boot from SAN scenarios, the machine
will fail to load.

Notice this may occur not only in the 'Multi-Function' scenario but in the
regular scenario as well, i.e., this introduced a regression in the driver's
ability to perform boot from SAN.

The patch reverts the mechanism and applies the old scheme to multi-function
devices as well as to single-function devices.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:54:43 -07:00
Shahed Shaikh
3d8623e600 qlcnic: Fix endianess issue in firmware load from file operation
Firmware binary file is in little endian. On big-endian architecture, while
writing this binary FW file to adapters memory, writel() swaps the data resulting into
corruption of FW image. So, swap the data before writing into adapters memory.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:43:15 -07:00
Rajesh Borundia
d874df58ff qlcnic: Fix endianess issue in FW dump template header
Firmware dump template header is read from adapter using
readl() which swaps the data. So, adjust structure
element on the boundary of 32bit dword.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:43:15 -07:00
Jitendra Kalsaria
26acc71252 qlcnic: Fix flash access interface to application
Application expects flash data in little endian, but driver reads/writes
flash data using readl()/writel() APIs which swaps data on big endian machine.
So, swap the data after reading from and before writing to flash memory.

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:43:15 -07:00
Vlad Yasevich
8a50f11c3b macvlan: Allow setting multicast filter on all macvlan types
Currently, macvlan code restricts multicast and unicast
filter setting only to passthru devices.  As a result,
if a guest using macvtap wants to receive multicast
traffic, it has to set IFF_ALLMULTI or IFF_PROMISC.

This patch makes it possible to use the fdb interface
to add multicast addresses to the filter thus allowing
a guest to receive only targeted multicast traffic.

CC: John Fastabend <john.r.fastabend@intel.com>
CC: Michael S. Tsirkin <mst@redhat.com>
CC: Jason Wang <jasowang@redhat.com>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 16:54:25 -07:00
Sebastian Andrzej Siewior
8ce261d0bb can: flexcan: handle state passive -> warning transition
Once the CAN-bus is open and a packet is sent, the controller switches
into the PASSIVE state. Once the BUS is closed again it goes the back
err-warning. The TX error counter goes 0 -> 0x80 -> 0x7f.
This patch makes sure that the user learns about this state chang
(CAN_STATE_ERROR_WARNING => CAN_STATE_ERROR_PASSIVE)

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Matthias Klein <matthias.klein@optimeas.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-21 10:50:00 +02:00
Alexander Stein
bc03a54139 can: flexcan: Disable error interrupt when bus error reporting is disabled
In case we don't have FLEXCAN_HAS_BROKEN_ERR_STATE and the user set
CAN_CTRLMODE_BERR_REPORTING once it can not be unset again until reboot.
So in case neither hardware nor user wants the error interrupt disable
the bit.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-21 10:49:59 +02:00
Dan Carpenter
37b75a3aa8 can: c_can: checking IS_ERR() instead of NULL
devm_ioremap() returns NULL on error, not an ERR_PTR().

Fixes: 33cf756569 ('can: c_can_platform: Fix raminit, use devm_ioremap() instead of devm_ioremap_resource()')

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.11
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-21 10:49:59 +02:00
Mirza Krak
9e37bc6c63 can: sja1000: Validate initialization state in start method
When sja1000 is not compiled as module the SJA1000 chip is only
initialized during device registration on kernel boot. Should the chip
get a hardware reset there is no way to reinitialize it without re-
booting the Linux kernel.

This patch adds a check in sja1000_start if the chip is initialized, if
not we initialize it.

Signed-off-by: Mirza Krak <mirza.krak@hostmobility.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-21 10:49:34 +02:00
Himangi Saraogi
3a73aeff37 can: mcp251x: Use dmam_alloc_coherent
This patch moves the data allocated using dma_alloc_coherent to the
corresponding managed interface and does away with the calls to free the
allocated memory in the probe and remove functions.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-18 01:03:43 +02:00
Lad, Prabhakar
b25a437206 can: dev: remove unused variable from can_calc_bittiming() function
this patch removes best_rate variable from can_calc_bittiming()
function which was set but was never used.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-18 01:03:42 +02:00
Sergei Shtylyov
a268de6c68 can: rcar_can: add device tree support
Add support of the device tree probing for the Renesas R-Car CAN controllers.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-18 01:03:42 +02:00
Sergei Shtylyov
862e2b6af9 can: rcar_can: support all input clocks
When writing the driver, I didn't give enough attention to the possible sources
of the CAN clock: although the value of the CLKR register was specified by the
platform data, the driver only handled one case, that is CAN clock being
sourced from the clkp1 clock, the same that clocks the whole CAN module. In
order to fix that overlook, we'll have to handle the CAN clock separately from
the peripheral clock (however, clkp1 will be specified for a CAN device only
once)...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-18 01:03:41 +02:00
Dong Aisheng
e0d1f4816f can: m_can: add Bosch M_CAN controller support
The patch adds the basic CAN TX/RX function support for Bosch M_CAN controller.
For TX, only one dedicated tx buffer is used for sending data.
For RX, RXFIFO 0 is used for receiving data to avoid overflow.
Rx FIFO 1 and Rx Buffers are not used currently, as well as Tx Event FIFO.

Due to the message ram can be shared by multi m_can instances
and the fifo element is configurable which is SoC dependant,
the design is to parse the message ram related configuration data from device
tree rather than hardcode define it in driver which can make the message
ram sharing fully transparent to M_CAN controller driver,
then we can gain better driver maintainability and future features upgrade.

M_CAN also supports CANFD protocol features like data payload up to 64 bytes
and bitrate switch at runtime, however, this patch still does not add the
support for these features.

Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
[mkl: Squahed semicolon cleanup by Fengguang Wu]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-18 01:03:41 +02:00
Stefan Agner
cdce844865 can: flexcan: add vf610 support for FlexCAN
Extend FlexCAN driver to support Vybrid. Vybrids variant of the IP
has ECC support which is controlled through the memory error
control register (MECR). There is also an errata which leads to
false positive error detections (ID e5295). This patch disables
the memory error detection completely.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-18 01:03:39 +02:00
Stefan Agner
ec56acfef2 can: flexcan: flexcan_get_berr_counter(): switch on clocks before accessing ecr register
The funcion flexcan_get_berr_counter() may be called from userspace even if the
interface is down, this the clocks are disabled. This patch switches on the
clocks before accessing the ecr register.

Reported-by: Ashutosh Singh <ashuleapyear@gmail.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-18 01:03:39 +02:00
Wolfram Sang
4ade6feb52 net: can: use kbuild magic to inherit debug settings
No need to manually copy debug settings into subdir Makefiles. kbuild
has a mechanism for inheriting, so let's use it.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-08-18 01:03:38 +02:00
Gwenhael Goavec-Merou
2100968666 net: phy: smsc: move smsc_phy_config_init reset part in a soft_reset function
On the one hand, phy_device.c provides a generic reset function if the phy
driver does not provide a soft_reset pointer. This generic reset does not take
into account the state of the phy, with a potential failure if the phy is in
powerdown mode. On the other hand, smsc driver provides a function with both
correct reset behaviour and configuration.

This patch moves the reset part into a new smsc_phy_reset function and provides
the soft_reset pointer to have a correct reset behaviour by default.

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-16 20:15:54 -07:00
David S. Miller
5b7911c1fc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2014-08-15

This series contains fixes to i40e only.

Anjali provides two fixes for i40e, first adds a check for non-active
VF before sending admin queue messages to the VFS.  This resolves a
potential kernel panic which would happen whenever we got a Tx hang and
there were VFS that were not up or enabled.  The second fix adds
additional checks so that we do try to access a VF that is not up or
enabled which would dereference a null pointer.

Jesse fixes a i40e PTP bug where the hang detection routine was never
being run when PTP was enabled.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-16 19:24:55 -07:00
Florian Fainelli
82c084f56a net: phy: bcm7xxx: remove suspend callback for 28nm PHYs
BCM7xxx internal Gigabit PHY on 28nm process do not need anything
special to be done during suspend, remove the suspend callback since it
might be harmful rather than useful. While at it, update the comment
above bcm7xxx_suspend() to reflect that it applies only to 40nm and 65nm
process PHY devices.

Fixes: b560a58c45 ("net: phy: add Broadcom BCM7xxx internal PHY driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@greenl8ke.davemloft.net>
2014-08-16 19:13:33 -07:00
Florian Fainelli
4fd14e0b4a net: phy: bcm7xxx: re-advertise all supported modes out of suspend
The BCM7xxx internal Gigabit PHYs on 28nm process platforms come out
reset without any half-duplex or "hub" compatible advertised modes,
which was causing auto-negotiation issues coming out of S3
suspend/resume, we just could not establish a link with a half-duplex
only link partner.

Make sure that the resume function properly re-configures the PHY device
to advertise all supported modes.

Fixes: b560a58c45 ("net: phy: add Broadcom BCM7xxx internal PHY driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@greenl8ke.davemloft.net>
2014-08-16 19:13:33 -07:00
Florian Fainelli
16466f4284 net: phy: bcm7xxx: remove 28nm wildcard entry
A wildcard entry with the 32-bits OUI 0x600d8400 was added as part of
the BCM7xxx internal PHY driver, but that entry might match other PHYs
that are not covered by this driver, so let's just remove it.

Fixes: b560a58c45 ("net: phy: add Broadcom BCM7xxx internal PHY driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@greenl8ke.davemloft.net>
2014-08-16 19:13:33 -07:00
Jesse Brandeburg
db6d2bee79 i40e: fix PTP bug
The receive hang detection routine was never being run when
PTP was enabled.

Change-ID: I200f35b0f3190d31b595df89d678f4c8a2131ba0
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-08-15 04:00:39 -07:00
Anjali Singhai Jain
6e7b5bd32c i40e: Fix a few potential VF dereferences
In some functions we might be doing potential dereference
without a check. This patch puts the check in place for all these
functions. Also fix the "for loops" so that we increment VF at the
right place so that we always do it even if we are short-circuiting
the loop through continue.

Change-ID: Id4276cfb1e841031bb7b6d6790c414242f364a9f
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-08-15 03:50:37 -07:00
Anjali Singhai Jain
478c9e7420 i40e: Fix for recent kernel panic
Whenever we get a Tx hang we issue a PFR, which means we send AQ
messages to VFS about the reset coming. Unfortunately with the recent
fix to be able to send messages to all VFS which earlier was not
happening at all we now are sending messages to not just the VFS that
are up but also to VFS that are not up.  AQ complains about this and
sends us an error in ARQ called LAN overflow event for a queue. We
check if the queue belongs to a VF and if it does we try to send a
vc_notify_vf_reset message to that VF. Well if the VF is not up/enabled
we will be entering this function with a non-active VF id. In this
function we were assuming VF struct is populated but it won't be if
the VF is not active.

Change-ID: Ic6733cda4582d3609fe6d83b2872bb2dcdc73f4a
Signed-off-by: Ashish N Shah <ashish.n.shah@intel.com>
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-08-15 03:39:08 -07:00
Linus Torvalds
a11c5c9ef6 PCI changes for the v3.17 merge window (part 2):
Miscellaneous
     - Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)
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Merge tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull DEFINE_PCI_DEVICE_TABLE removal from Bjorn Helgaas:
 "Part two of the PCI changes for v3.17:

    - Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)

  It's a mechanical change that removes uses of the
  DEFINE_PCI_DEVICE_TABLE macro.  I waited until later in the merge
  window to reduce conflicts, but it's possible you'll still see a few"

* tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
2014-08-14 18:10:33 -06:00
Linus Torvalds
ad15afb8b9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "I'm sending this out, in particular, to get the iwlwifi fix
  propagated:

   1) Fix build due to missing include in i40e driver, from Lucas
      Tanure.

   2) Memory leak in openvswitch port allocation, from Chirstoph Jaeger.

   3) Check DMA mapping errors in myri10ge, from Stanislaw Gruszka.

   4) Fix various deadlock scenerios in sunvnet driver, from Sowmini
      Varadhan.

   5) Fix cxgb4i build failures with incompatible Kconfig settings of
      the driver vs ipv6, from Anish Bhatt.

   6) Fix generation of ACK packet timestamps in the presence of TSO
      which will be split up, from Willem de Bruijn.

   7) Don't enable sched scan in iwlwifi driver, it causes firmware
      crashes in some revisions.  From Emmanuel Grumbach.

   8) Revert a macvlan simplification that causes crashes.

   9) Handle RTT calculations properly in the presence of repair'd SKBs,
      from Andrey Vagin.

  10) SIT tunnel lookup uses wrong device index in compares, from
      Shmulik Ladkani.

  11) Handle MTU reductions in TCP properly for ipv4 mapped ipv6
      sockets, from Neal Cardwell.

  12) Add missing annotations in rhashtable code, from Thomas Graf.

  13) Fix false interpretation of two RTOs as being from the same TCP
      loss event in the FRTO code, from Neal Cardwell"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (42 commits)
  netlink: Annotate RCU locking for seq_file walker
  rhashtable: fix annotations for rht_for_each_entry_rcu()
  rhashtable: unexport and make rht_obj() static
  rhashtable: RCU annotations for next pointers
  tcp: fix ssthresh and undo for consecutive short FRTO episodes
  tcp: don't allow syn packets without timestamps to pass tcp_tw_recycle logic
  tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced()
  sit: Fix ipip6_tunnel_lookup device matching criteria
  net: ethernet: ibm: ehea: Remove duplicate object from Makefile
  net: xgene: Check negative return value of xgene_enet_get_ring_size()
  tcp: don't use timestamp from repaired skb-s to calculate RTT (v2)
  net: xilinx: Remove .owner field for driver
  Revert "macvlan: simplify the structure port"
  iwlwifi: mvm: disable scheduled scan to prevent firmware crash
  xen-netback: remove loop waiting function
  xen-netback: don't stop dealloc kthread too early
  xen-netback: move NAPI add/remove calls
  xen-netback: fix debugfs entry creation
  xen-netback: fix debugfs write length check
  net-timestamp: fix missing tcp fragmentation cases
  ...
2014-08-14 17:25:21 -06:00
David S. Miller
a61ebdfdb1 Merge tag 'master-2014-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
pull request: wireless 2014-08-14

Please pull this batch of fixes intended for the 3.17 stream...

Arend van Spriel brings two brcmfmac fixes, one which fixes a memory
leak and one which corrects some merge damage.

Emmanuel Grumbach fixes Linus's iwlwifi firmware-related log spam.

Rickard Strandqvist does some proper NULL termination after a call
to strncpy.

Ronald Wahl corrects a carl9170 problem with sending URBs with the
wrong endpoint type (resulting in log spam).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14 15:17:37 -07:00
Andreas Ruprecht
3b3e0ea8bc net: ethernet: ibm: ehea: Remove duplicate object from Makefile
In the Makefile, ehea_phyp.o is included twice in the list of
object files compile into ehea.o.

This change removes one instance.

Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14 14:38:54 -07:00
Tobias Klauser
9b9ba821b6 net: xgene: Check negative return value of xgene_enet_get_ring_size()
xgene_enet_get_ring_size() returns a negative value in case of an error,
but its only caller in xgene_enet_create_desc_ring() currently uses the
return value directly as u32. Instead, check for a negative value first and
error out in case. Also move the call to xgene_enet_get_ring_size() before
devm_kzalloc() so we don't need to free anything in the error path.

This fixes the following issue reported by the Coverity Scanner:

** CID 1231336:  Improper use of negative value  (NEGATIVE_RETURNS)
/drivers/net/ethernet/apm/xgene/xgene_enet_main.c: 596 in xgene_enet_create_desc_ring()

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14 14:38:54 -07:00
Michal Simek
fdd42e4400 net: xilinx: Remove .owner field for driver
There is no need to init .owner field.

Based on the patch from Peter Griffin <peter.griffin@linaro.org>
"mmc: remove .owner field for drivers using module_platform_driver"

This patch removes the superflous .owner field for drivers which
use the module_platform_driver API, as this is overriden in
platform_driver_register anyway."

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14 14:38:54 -07:00
David S. Miller
5e3c516b51 Revert "macvlan: simplify the structure port"
This reverts commit a188a54d11.

It causes crashes

====================
[   80.643286] BUG: unable to handle kernel NULL pointer dereference at 0000000000000878
[   80.670103] IP: [<ffffffff810832e4>] try_to_grab_pending+0x64/0x1f0
[   80.691289] PGD 22c102067 PUD 235bf0067 PMD 0
[   80.706611] Oops: 0002 [#1] SMP
[   80.717836] Modules linked in: macvlan nfsd lockd nfs_acl exportfs auth_rpcgss sunrpc oid_registry ioatdma ixgbe(-) mdio igb dca
[   80.757935] CPU: 37 PID: 6724 Comm: rmmod Not tainted 3.16.0-net-next-08-12-2014-FCoE+ #1
[   80.785688] Hardware name: Intel Corporation S2600CO/S2600CO, BIOS SE5C600.86B.02.03.0003.041920141333 04/19/2014
[   80.820310] task: ffff880235a9eae0 ti: ffff88022e844000 task.ti: ffff88022e844000
[   80.845770] RIP: 0010:[<ffffffff810832e4>]  [<ffffffff810832e4>] try_to_grab_pending+0x64/0x1f0
[   80.875326] RSP: 0018:ffff88022e847b28  EFLAGS: 00010046
[   80.893251] RAX: 0000000000037a6a RBX: 0000000000000878 RCX: 0000000000000000
[   80.917187] RDX: ffff880235a9eae0 RSI: 0000000000000001 RDI: ffffffff810832db
[   80.941125] RBP: ffff88022e847b58 R08: 0000000000000000 R09: 0000000000000000
[   80.965056] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88022e847b70
[   80.988994] R13: 0000000000000000 R14: ffff88022e847be8 R15: ffffffff81ebe440
[   81.012929] FS:  00007fab90b07700(0000) GS:ffff88043f7a0000(0000) knlGS:0000000000000000
[   81.040400] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.059757] CR2: 0000000000000878 CR3: 0000000235a42000 CR4: 00000000001407e0
[   81.083689] Stack:
[   81.090739]  ffff880235a9eae0 0000000000000878 ffff88022e847b70 0000000000000000
[   81.116253]  ffff88022e847be8 ffffffff81ebe440 ffff88022e847b98 ffffffff810847f1
[   81.141766]  ffff88022e847b78 0000000000000286 ffff880234200000 0000000000000000
[   81.167282] Call Trace:
[   81.175768]  [<ffffffff810847f1>] __cancel_work_timer+0x31/0x170
[   81.195985]  [<ffffffff8108494b>] cancel_work_sync+0xb/0x10
[   81.214769]  [<ffffffffa015ae68>] macvlan_port_destroy+0x28/0x60 [macvlan]
[   81.237844]  [<ffffffffa015b930>] macvlan_uninit+0x40/0x50 [macvlan]
[   81.259209]  [<ffffffff816bf6e2>] rollback_registered_many+0x1a2/0x2c0
[   81.281140]  [<ffffffff816bf81a>] unregister_netdevice_many+0x1a/0xb0
[   81.302786]  [<ffffffffa015a4ff>] macvlan_device_event+0x1ef/0x240 [macvlan]
[   81.326439]  [<ffffffff8108a13d>] notifier_call_chain+0x4d/0x70
[   81.346366]  [<ffffffff8108a201>] raw_notifier_call_chain+0x11/0x20
[   81.367439]  [<ffffffff816bf25b>] call_netdevice_notifiers_info+0x3b/0x70
[   81.390228]  [<ffffffff816bf2a1>] call_netdevice_notifiers+0x11/0x20
[   81.411587]  [<ffffffff816bf6bd>] rollback_registered_many+0x17d/0x2c0
[   81.433518]  [<ffffffff816bf925>] unregister_netdevice_queue+0x75/0x110
[   81.455735]  [<ffffffff816bfb2b>] unregister_netdev+0x1b/0x30
[   81.475094]  [<ffffffffa0039b50>] ixgbe_remove+0x170/0x1d0 [ixgbe]
[   81.495886]  [<ffffffff813512a2>] pci_device_remove+0x32/0x60
[   81.515246]  [<ffffffff814c75c4>] __device_release_driver+0x64/0xd0
[   81.536321]  [<ffffffff814c76f8>] driver_detach+0xc8/0xd0
[   81.554530]  [<ffffffff814c656e>] bus_remove_driver+0x4e/0xa0
[   81.573888]  [<ffffffff814c828b>] driver_unregister+0x2b/0x60
[   81.593246]  [<ffffffff8135143e>] pci_unregister_driver+0x1e/0xa0
[   81.613749]  [<ffffffffa005db18>] ixgbe_exit_module+0x1c/0x2e [ixgbe]
[   81.635401]  [<ffffffff810e738b>] SyS_delete_module+0x15b/0x1e0
[   81.655334]  [<ffffffff8187a395>] ? sysret_check+0x22/0x5d
[   81.673833]  [<ffffffff810abd2d>] ? trace_hardirqs_on_caller+0x11d/0x1e0
[   81.696339]  [<ffffffff8132bfde>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[   81.717985]  [<ffffffff8187a369>] system_call_fastpath+0x16/0x1b
[   81.738199] Code: 00 48 83 3d 6e bb da 00 00 48 89 c2 0f 84 67 01 00 00 fa 66 0f 1f 44 00 00 49 89 14 24 e8 b5 4b 02 00 45 84 ed 0f 85 ac 00 00 00 <f0> 0f ba 2b 00 72 1d 31 c0 48 8b 5d d8 4c 8b 65 e0 4c 8b 6d e8
[   81.807026] RIP  [<ffffffff810832e4>] try_to_grab_pending+0x64/0x1f0
[   81.828468]  RSP <ffff88022e847b28>
[   81.840384] CR2: 0000000000000878
[   81.851731] ---[ end trace 9f6c7232e3464e11 ]---
====================

This bug could be triggered by these steps:

modprobe ixgbe ; modprobe macvlan
ip link add link p96p1 address 00:1B:21:6E:06:00 macvlan0 type macvlan
ip link add link p96p1 address 00:1B:21:6E:06:01 macvlan1 type macvlan
ip link add link p96p1 address 00:1B:21:6E:06:02 macvlan2 type macvlan
ip link add link p96p1 address 00:1B:21:6E:06:03 macvlan3 type macvlan
rmmod ixgbe

Reported-by: "Keller, Jacob E" <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-14 14:32:49 -07:00
Linus Torvalds
e3b1fd56f1 Main set of InfiniBand/RDMA updates for 3.17 merge window:
- MR reregistration support
  - MAD support for RMPP in userspace
  - iSER and SRP initiator updates
  - ocrdma hardware driver updates
  - other fixes...
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband/rdma updates from Roland Dreier:
 "Main set of InfiniBand/RDMA updates for 3.17 merge window:

   - MR reregistration support
   - MAD support for RMPP in userspace
   - iSER and SRP initiator updates
   - ocrdma hardware driver updates
   - other fixes..."

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (52 commits)
  IB/srp: Fix return value check in srp_init_module()
  RDMA/ocrdma: report asic-id in query device
  RDMA/ocrdma: Update sli data structure for endianness
  RDMA/ocrdma: Obtain SL from device structure
  RDMA/uapi: Include socket.h in rdma_user_cm.h
  IB/srpt: Handle GID change events
  IB/mlx5: Use ARRAY_SIZE instead of sizeof/sizeof[0]
  IB/mlx4: Use ARRAY_SIZE instead of sizeof/sizeof[0]
  RDMA/amso1100: Check for integer overflow in c2_alloc_cq_buf()
  IPoIB: Remove unnecessary test for NULL before debugfs_remove()
  IB/mad: Add user space RMPP support
  IB/mad: add new ioctl to ABI to support new registration options
  IB/mad: Add dev_notice messages for various umad/mad registration failures
  IB/mad: Update module to [pr|dev]_* style print messages
  IB/ipoib: Avoid multicast join attempts with invalid P_key
  IB/umad: Update module to [pr|dev]_* style print messages
  IB/ipoib: Avoid flushing the workqueue from worker context
  IB/ipoib: Use P_Key change event instead of P_Key polling mechanism
  IB/ipath: Add P_Key change event support
  mlx4_core: Add support for secure-host and SMP firewall
  ...
2014-08-14 11:09:05 -06:00
Emmanuel Grumbach
77b2f28659 iwlwifi: mvm: disable scheduled scan to prevent firmware crash
There are firmwares which don't support scheduled scan.
Disable it for now.
Linus's system encoutered this issue.
Thanks to David Spinadel for his help.

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-08-14 19:47:41 +03:00
Roland Dreier
d087f6ad72 Merge branches 'core', 'cxgb4', 'ipoib', 'iser', 'iwcm', 'mad', 'misc', 'mlx4', 'mlx5', 'ocrdma' and 'srp' into for-next 2014-08-14 08:58:04 -07:00
Simon Wunderlich
804eef1479 ath10k: unregister spectral before mac
If spectral is unregistered after mac80211, the relayfs file has already
been removed recursively by mac/cfg80211, and spectral tries to remove
the file once more, thus leading to double free problems. Better clean
up spectral before to avoid that problem.

Reported-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-14 15:42:17 +03:00
Srinivas Kandagatla
beb4be849a ath6kl: Add SDIO device ID for QCA6234X Support
This patch adds device ID 402 to support QCA6234X found in APQ8064 SOC
in IFC6410 board.

Tested with mainline mmci sdio driver.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-14 15:26:15 +03:00
Ben Greear
f2bc4d203e ath10k: fix typo in error message
tranmist -> transmit

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-14 15:22:53 +03:00
Ben Greear
a9aefb3b37 ath10k: improve vdev map handling
Check vdev map has space before calling ffs,
fix invalid cleanup in failure to create vdev
case.

Open-code the BIT() logic since BIT does not properly
handle 64-bit bitfields and future patches will make
use of larger bitfields.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-14 15:17:32 +03:00
David S. Miller
db8d457acc Merge git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2014-08-12

This series contains updates to i40e and e1000e.

Lucas provides a fix for i40e to resolve a compile issue where a header
was missing in the #includes.

Wei Yongjun provides a fix for i40e to resolve a sparse warning, where
a non-static function should be static.

Julia Lawall provides a fix for i40e which was found using Coccinelle,
where there was a typo in the name of the type given to sizeof().

Rickard Strandqvist provides a fix for i40e to replace the use of
strncpy() with strlcpy() to avoid strings that lack null termination.

Jean Sacren provides two e1000e fixes, first is a comment fix and second
removes an excessive space character in a debug message.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-13 20:08:55 -07:00
Wei Liu
b125285821 xen-netback: remove loop waiting function
The original implementation relies on a loop to check if all inflight
packets are freed. Now we have proper reference counting, there's no
need to use loop anymore.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-13 20:07:44 -07:00