Pull networking fixes from David Miller:

 1) Fix use-after-free with mac80211 RX A-MPDU reorder timer, from
    Johannes Berg.

 2) iwlwifi leaks memory every module load/unload cycles, fix from Larry
    Finger.

 3) Need to use for_each_netdev_safe() in rtnl_group_changelink()
    otherwise we can crash, from WANG Cong.

 4) mlx4 driver does register_netdev() too early in the probe sequence,
    from Ido Shamay.

 5) Don't allow router discovery hop limit to decrease the interface's
    hop limit, from D.S. Ljungmark.

 6) tx_packets and tx_bytes improperly accounted for certain classes of
    USB network devices, fix from Ben Hutchings.

 7) ip{6}mr_rules_init() mistakenly use plain kfree to release the ipmr
    tables in the error path, they must instead use ip{6}mr_free_table().
    Fix from WANG Cong.

 8) cxgb4 doesn't properly quiesce all RX activity before unregistering
    the netdevice.  Fix from Hariprasad Shenai.

 9) Fix hash corruptions in ipvlan driver, from Jiri Benc.

10) nla_memcpy(), like a real memcpy, should fully initialize the
    destination buffer, even if the source attribute is smaller.  Fix
    from Jiri Benc.

11) Fix wrong error code returned from iucv_sock_sendmsg().  We should
    use whatever sock_alloc_send_skb() put into 'err'.  From Eugene
    Crosser.

12) Fix slab object leak on module unload in TIPC, from Ying Xue.

13) Need a READ_ONCE() when reading the cached RX socket route in
    tcp_v{4,6}_early_demux().  From Michal Kubecek.

14) Still too many problems with TPC support in the ath9k driver, so
    disable it for now.  From Felix Fietkau.

15) When in AP mode the rtlwifi driver can leak DMA mappings, fix from
    Larry Finger.

16) Missing kzalloc() failure check in gs_usb CAN driver, from Colin Ian
    King.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
  cxgb4: Fix to dump devlog, even if FW is crashed
  cxgb4: Firmware macro changes for fw verison 1.13.32.0
  bnx2x: Fix kdump when iommu=on
  bnx2x: Fix kdump on 4-port device
  mac80211: fix RX A-MPDU session reorder timer deletion
  MAINTAINERS: Update Intel Wired Ethernet Driver info
  tipc: fix a slab object leak
  net/usb/r8152: add device id for Lenovo TP USB 3.0 Ethernet
  af_iucv: fix AF_IUCV sendmsg() errno
  openvswitch: Return vport module ref before destruction
  netlink: pad nla_memcpy dest buffer with zeroes
  bonding: Bonding Overriding Configuration logic restored.
  ipvlan: fix check for IP addresses in control path
  ipvlan: do not use rcu operations for address list
  ipvlan: protect against concurrent link removal
  ipvlan: fix addr hash list corruption
  net: fec: setup right value for mdio hold time
  net: tcp6: fix double call of tcp_v6_fill_cb()
  cxgb4vf: Fix sparse warnings
  netns: don't clear nsid too early on removal
  ...

Merge tag 'wireless-drivers-for-davem-2015-04-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
iwlwifi:

* fix a memory leak, we leaked memory each time the module
  was loaded.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Hariprasad Shenai says:

====================
cxgb4 FW macro changes for new FW

Fix to dump device log even in the case of firmware crash. Also
incorporates changes for new FW.

This patch series has been created against net tree and includes patches on
cxgb4 driver.

We have included all the maintainers of respective drivers. Kindly review the
change and let us know in case of any review comments.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Add new Common Code routines to retrieve Firmware Device Log
parameters from PCIE_FW_PF[7]. The firmware initializes its Device Log very
early on and stores the parameters for its location/size in that register.
Using the parameters from the register allows us to access the Firmware
Device Log even when the firmware crashes very early on or we're not
attached to the firmware

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>

Adds new macro and few macro changes for fw version 1.13.32.0 also
changes version string in driver to match 1.13.32.0
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge tag 'mac80211-for-davem-2015-04-01' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
This contains just a single fix for a crash I happened to randomly
run into today during testing. It's clearly been around for a while,
but is pretty hard to trigger, even when I tried explicitly (and
modified the code to make it more likely) it rarely did.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Pull IOMMU fixes from Joerg Roedel:
 "This contains fixes for:

   - a VT-d issue where hardware domain-ids might be freed while still
     in use.

   - an ipmmu-vmsa issue where where the device-table was not zero
     terminated

   - unchecked register access issue in the arm-smmu driver"

* tag 'iommu-fixes-v4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Remove unused variable
  iommu: ipmmu-vmsa: Add terminating entry for ipmmu_of_ids
  iommu/vt-d: Detach domain *only* from attached iommus
  iommu/arm-smmu: fix ARM_SMMU_FEAT_TRANS_OPS condition

Since commit 8e709469 ("lguest: add a dummy PCI host bridge.")
lguest uses PCI, but it needs you to frob the ports directly.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull lazytime fixes from Ted Ts'o:
 "This fixes a problem in the lazy time patches, which can cause
  frequently updated inods to never have their timestamps updated.

  These changes guarantee that no timestamp on disk will be stale by
  more than 24 hours"

* tag 'lazytime_fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  fs: add dirtytime_expire_seconds sysctl
  fs: make sure the timestamps for lazytime inodes eventually get written

Pull nfsd fixes from Bruce Fields:
 "Two main issues:

   - We found that turning on pNFS by default (when it's configured at
     build time) was too aggressive, so we want to switch the default
     before the 4.0 release.

   - Recent client changes to increase open parallelism uncovered a
     serious bug lurking in the server's open code.

  Also fix a krb5/selinux regression.

  The rest is mainly smaller pNFS fixes"

* 'for-4.0' of git://linux-nfs.org/~bfields/linux:
  sunrpc: make debugfs file creation failure non-fatal
  nfsd: require an explicit option to enable pNFS
  NFSD: Fix bad update of layout in nfsd4_return_file_layout
  NFSD: Take care the return value from nfsd4_encode_stateid
  NFSD: Printk blocklayout length and offset as format 0x%llx
  nfsd: return correct lockowner when there is a race on hash insert
  nfsd: return correct openowner when there is a race to put one in the hash
  NFSD: Put exports after nfsd4_layout_verify fail
  NFSD: Error out when register_shrinker() fail
  NFSD: Take care the return value from nfsd4_decode_stateid
  NFSD: Check layout type when returning client layouts
  NFSD: restore trace event lost in mismerge

Yuval Mintz says:

====================
bnx2x: kdump related fixes

This patch series aims to fix bnx2x driver issues when loading in kdump kernel.
Both issues fixed here would be fatal to the device, requiring full reset of
the system in order to recover, preventing the device from serving its purpose
in the kdump environment.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

When IOMM-vtd is active, once main kernel crashes unfinished DMAE transactions
will be blocked, putting the HW in an error state which will cause further
transactions to timeout.

Current employed logic uses wrong macros, causing the first function to be the
only function that cleanups that error state during its probe/load.

This patch allows all the functions to successfully re-load in kdump kernel.
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>

When running in a kdump kernel, it's very likely that due to sync. loss with
management firmware the first PCI function to probe and reach the previous
unload flow would decide it can reset the chip and continue onward. While doing
so, it will only close its own Rx port.

On a 4-port device where 2nd port on engine is a 1g-port, the 2nd port would
allow ingress traffic after the chip is reset [assuming it was active on the
first kernel]. This would later cause a HW attention.

This changes driver flow to close both ports' 1g capabilities during the
previous driver unload flow prior to the chip reset.
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>

There's an issue with the way the RX A-MPDU reorder timer is
deleted that can cause a kernel crash like this:

 * tid_rx is removed - call_rcu(ieee80211_free_tid_rx)
 * station is destroyed
 * reorder timer fires before ieee80211_free_tid_rx() runs,
   accessing the station, thus potentially crashing due to
   the use-after-free

The station deletion is protected by synchronize_net(), but
that isn't enough -- ieee80211_free_tid_rx() need not have
run when that returns (it deletes the timer.) We could use
rcu_barrier() instead of synchronize_net(), but that's much
more expensive.

Instead, to fix this, add a field tracking that the session
is being deleted. In this case, the only re-arming of the
timer happens with the reorder spinlock held, so make that
code not rearm it if the session is being deleted and also
delete the timer after setting that field. This ensures the
timer cannot fire after ___ieee80211_stop_rx_ba_session()
returns, which fixes the problem.

Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Update the git tree info with a recent change in tree names.  Also
add our new mailing list created solely for Linux kernel patches
and kernel development, as well as the new patchwork project for
tracking patches.  Lastly update the list of "reviewers" since a
couple of developers have moved on to different projects.

Made an update to the section header so that it is more manageable
going forward as we add new drivers.
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

When remove TIPC module, there is a warning to remind us that a slab
object is leaked like:

root@localhost:~# rmmod tipc
[   19.056226] =============================================================================
[   19.057549] BUG TIPC (Not tainted): Objects remaining in TIPC on kmem_cache_close()
[   19.058736] -----------------------------------------------------------------------------
[   19.058736]
[   19.060287] INFO: Slab 0xffffea0000519a00 objects=23 used=1 fp=0xffff880014668b00 flags=0x100000000004080
[   19.061915] INFO: Object 0xffff880014668000 @offset=0
[   19.062717] kmem_cache_destroy TIPC: Slab cache still has objects

This is because the listening socket of TIPC topology server is not
closed before TIPC proto handler is unregistered with proto_unregister().
However, as the socket is closed in tipc_exit_net() which is called by
unregister_pernet_subsys() during unregistering TIPC namespace operation,
the warning can be eliminated if calling unregister_pernet_subsys() is
moved before calling proto_unregister().

Fixes: e05b31f4 ("tipc: make tipc socket support net namespace")
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This device is sold as 'Lenovo Tinkpad USB 3.0 Ethernet 4X90E51405'.
Chipset is RTL8153 and works with r8152.
Signed-off-by: Christian Hesse <mail@eworm.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

When sending over AF_IUCV socket, errno was incorrectly set to
ENOMEM even when other values where appropriate, notably EAGAIN.
With this patch, error indicator returned by sock_alloc_send_skb()
is passed to the caller, rather than being overwritten with ENOMEM.
Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Return module reference before invoking the respective vport
->destroy() function. This is needed as ovs_vport_del() is not
invoked inside an RCU read side critical section so the kfree
can occur immediately before returning to ovs_vport_del().

Returning the module reference before ->destroy() is safe because
the module unregistration is blocked on ovs_lock which we hold
while destroying the datapath.

Fixes: 62b9c8d0 ("ovs: Turn vports with dependencies into separate modules")
Reported-by: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

We currently have a problem that SELinux policy is being enforced when
creating debugfs files. If a debugfs file is created as a side effect of
doing some syscall, then that creation can fail if the SELinux policy
for that process prevents it.

This seems wrong. We don't do that for files under /proc, for instance,
so Bruce has proposed a patch to fix that.

While discussing that patch however, Greg K.H. stated:

    "No kernel code should care / fail if a debugfs function fails, so
     please fix up the sunrpc code first."

This patch converts all of the sunrpc debugfs setup code to be void
return functins, and the callers to not look for errors from those
functions.

This should allow rpc_clnt and rpc_xprt creation to work, even if the
kernel fails to create debugfs files for some reason.

Symptoms were failing krb5 mounts on systems using gss-proxy and
selinux.

Fixes: 388f0c77 "sunrpc: add a debugfs rpc_xprt directory..."
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

This is especially important in cases where the kernel allocs a new
structure and expects a field to be set from a netlink attribute. If such
attribute is shorter than expected, the rest of the field is left containing
previous data. When such field is read back by the user space, kernel memory
content is leaked.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

Before commit 3900f290 ("bonding: slight
optimizztion for bond_slave_override()") the override logic was to send packets
with non-zero queue_id through the slave with corresponding queue_id, under two
conditions only - if the slave can transmit and it's up.

The above mentioned commit changed this logic by introducing an additional
condition - whether the bond is active (indirectly, using the slave_can_tx and
later - bond_is_active_slave), that prevents the user from implementing more
complex policies according to the Documentation/networking/bonding.txt.
Signed-off-by: Anton Nayshtut <anton@swortex.com>
Signed-off-by: Alexey Bogoslavsky <alexey@swortex.com>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Jiri Benc says:

====================
ipvlan: list corruption and rcu fixes

This patch set fixes different issues leading to corrupted lists and
incorrect rcu usage.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

When an ipvlan interface is down, its addresses are not on the hash list.
Fix checks for existence of addresses not to depend on the hash list, walk
through all interface addresses instead.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

All accesses to ipvlan->addrs are under rtnl.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Adding and removing to the 'ipvlans' list is already done using _rcu list
operations.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

When ipvlan interface with IP addresses attached is brought down and then
deleted, the assigned addresses are deleted twice from the address hash
list, first on the interface down and second on the link deletion.
Similarly, when an address is added while the interface is down, it is added
second time once the interface is brought up.

When the interface is down, the addresses should be kept off the hash list
for performance reasons. Ensure this is true, which also fixes the double add
problem. To fix the double free, check whether the address is hashed before
removing it.
Reported-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Pull file locking fix from Jeff Layton:
 "Another small fix for the lease overhaul"

* tag 'locks-v4.0-5' of git://git.samba.org/jlayton/linux:
  locks: fix file_lock deletion inside loop

Turns out sending out layouts to any client is a bad idea if they
can't get at the storage device, so require explicit admin action
to enable pNFS.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

Pull libata fixes from Tejun Heo:
 "Nothing exciting.  Two patches to update queued trim blacklist"

* 'for-4.0-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: Blacklist queued TRIM on Samsung SSD 850 Pro
  libata: Update Crucial/Micron blacklist

Pull late GPIO fixes from Linus Walleij:
 "Here are the (hopefully) last GPIO fixes for v4.0.  Nothing
  controversial whatsoever, just fixes:

   - syscon GPIO fix for Keystone DSP GPIOs

   - pin number translation fix for ACPI GPIO

   - a smallish compiler warning fix on the mpc8xxx driver"

* tag 'gpio-v4.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: syscon: reduce message level when direction reg offset not in dt
  gpiolib: translate pin number in GPIO ACPI callbacks
  gpio: mpc8xxx: remove __initdata annotation for mpc8xxx_gpio_ids[]

Merge tag 'iwlwifi-for-kalle-2015-03-30' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

* fix a memory leak: we leaked memory each time the module
was loaded.

Pull ARM SoC fixes from Olof Johansson:
 "The latest and greatest fixes for ARM platform code.  Worth pointing
  out are:

   - Lines-wise, largest is a PXA fix for dealing with interrupts on DT
     that was quite broken.  It's still newish code so while we could
     have held this off, it seemed appropriate to include now

   - Some GPIO fixes for OMAP platforms added a few lines.  This was
     also fixes for code recently added (this release).

   - Small OMAP timer fix to behave better with partially upstreamed
     platforms, which is quite welcome.

   - Allwinner fixes about operating point control, reducing
     overclocking in some cases for better stability.

  plus a handful of other smaller fixes across the map"

* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: juno: Fix misleading name of UART reference clock
  ARM: dts: sunxi: Remove overclocked/overvoltaged OPP
  ARM: dts: sun4i: a10-lime: Override and remove 1008MHz OPP setting
  ARM: socfpga: dts: fix spi1 interrupt
  ARM: dts: Fix gpio interrupts for dm816x
  ARM: dts: dra7: remove ti,hwmod property from pcie phy
  ARM: OMAP: dmtimer: disable pm runtime on remove
  ARM: OMAP: dmtimer: check for pm_runtime_get_sync() failure
  ARM: OMAP2+: Fix socbus family info for AM33xx devices
  ARM: dts: omap3: Add missing dmas for crypto
  ARM: dts: rockchip: disable gmac by default in rk3288.dtsi
  MAINTAINERS: add rockchip regexp to the ARM/Rockchip entry
  ARM: pxa: fix pxa interrupts handling in DT
  ARM: pxa: Fix typo in zeus.c
  ARM: sunxi: Have ARCH_SUNXI select RESET_CONTROLLER for clock driver usage

Merge tag 'sunxi-fixes-for-4.0' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes

Allwinner fixes for 4.0

There's a few fixes to merge for 4.0, one to add a select in the machine
Kconfig option to fix a potential build failure, and two fixing cpufreq related
issues.

* tag 'sunxi-fixes-for-4.0' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: dts: sunxi: Remove overclocked/overvoltaged OPP
  ARM: dts: sun4i: a10-lime: Override and remove 1008MHz OPP setting
  ARM: sunxi: Have ARCH_SUNXI select RESET_CONTROLLER for clock driver usage
Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'fixes-v4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps for the -rc cycle:

- Fix a device tree based booting vs legacy booting regression for
  omap3 crypto hardware by adding the missing DMA channels.

- Fix /sys/bus/soc/devices/soc0/family for am33xx devices.

- Fix two timer issues that can cause hangs if the timer related
  hwmod data is missing like it often initially is for new SoCs.

- Remove pcie hwmods entry from dts as that causes runtime PM to
  fail for the PHYs.

- A paper bag type dts configuration fix for dm816x GPIO
  interrupts that I just noticed. This is most of the changes
  diffstat wise, but as it's a basic feature for connecting
  devices and things work otherwise, it should be fixed.

* tag 'fixes-v4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Fix gpio interrupts for dm816x
  ARM: dts: dra7: remove ti,hwmod property from pcie phy
  ARM: OMAP: dmtimer: disable pm runtime on remove
  ARM: OMAP: dmtimer: check for pm_runtime_get_sync() failure
  ARM: OMAP2+: Fix socbus family info for AM33xx devices
  ARM: dts: omap3: Add missing dmas for crypto
Signed-off-by: Olof Johansson <olof@lixom.net>

Late fix for v4.0 on the SoCFPGA platform:
- Fix interrupt number for SPI1 interface

* tag 'socfpga_fix_for_v4.0_2' of git://git.rocketboards.org/linux-socfpga-next:
  ARM: socfpga: dts: fix spi1 interrupt
Signed-off-by: Olof Johansson <olof@lixom.net>

The UART reference clock speed is 7273.8 kHz, not 72738 kHz.

Dots aren't usually used in node names even though ePAPR permits
them.  However, this can easily be avoided by expressing the
frequency in Hz, not kHz.

This patch changes the name to refclk7273800hz, reflecting the
actual clock speed.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

arm: pxa: fixes for v4.0-rc5

There are only 2 fixes, one for the zeus board about the regulator changes,
where a typo prevented the zeus board from having a working can regulator,
and one regression triggered by the interrupts IRQ shift of 16 affecting all
boards.

* tag 'fixes-for-v4.0-rc5' of https://github.com/rjarzmik/linux:
  ARM: pxa: fix pxa interrupts handling in DT
  ARM: pxa: Fix typo in zeus.c
Signed-off-by: Olof Johansson <olof@lixom.net>

The FEC modules used on i.MX28 and newer have a register to tune the MDIO
output hold time that should be at least 10 ns. Up to now this value was not
explicitly set and so resulted in less hold time if the fec clock was
faster than 100 MHz.

This was noticed on an i.MX28 machine that uses an input clock of ~150
Mhz which resulted in unreliable communication with a Marvell switch.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>