Move various interrupt controller bindings into the
interrupt-controller/ directory.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-mediatek@lists.infradead.org

The ina209 binding only differs from other ina2xx bindings in the
compatible string, so add it to the common binding and remove the ina209
binding file.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>

Move the Calxeda memory controller and PHY bindings to appropriate
subsystem directories.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>

Move USB PHY bindings under usb directory to phy directory which already
contains other USB PHY bindings.

The Samsung USB PHY binding is obsolete and can be removed.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>

Move various bindings in misc to appropriate subsystem directories.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>

We have RNG bindings in hwrng/ and rng/. Consolidate them all under rng/.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>

Create a top level eeprom binding directory and move several scattered
binding files there.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>

Backlights are generally a subtype of LEDs at least from a software
point of view if not always electrically. Move the bindings from the
video directory to underneath the leds dir.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>

This is a quite large renaming to consolidate display related bindings
into a single "display" directory from various scattered locations of
video, drm, gpu, fb, mipi, and panel. The prior location was somewhat
based on the Linux driver location, but bindings should be independent
of that.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>

Add documentation for the PXA LCD controller devicetree binding.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Reviewed-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Since OF is now a userselectable config symbol, having OF=y but OF_IRQ=n
is a valid combination for non-OF platforms, and OF=y does not guarantee
anymore that OF_IRQ is enabled (or we are building for SPARC).

Fixes the following build error with OF=y, IRQ_DOMAIN=n and SPI=y:

drivers/built-in.o: In function `spi_register_master':
(.text+0xc3ae): undefined reference to `irq_of_parse_and_map'
Makefile:935: recipe for target 'vmlinux' failed
make: *** [vmlinux] Error 1
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Rob Herring <robh@kernel.org>

of_irq_find_parent has no users outside of of_irq.c, so it does not make
sense to expose it in of_irq.h. Therefore remove the prototype and dummy
implmeentation and make the function static instead.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Rob Herring <robh@kernel.org>

of_msi_configure is part of of_irq.c, which is compiled in when OF_IRQ
is enabled, not just OF.
Also It is unconditionally called from of_platform_device_create_pdata,
which does not depend on OF_IRQ, just OF_ADDRESS, so we need a dummy
implementation in case of OF_ADDRESS=y but OF_IRQ=n.

Fixes: c706c239 ("of/platform: Assign MSI domain to platform device")
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Rob Herring <robh@kernel.org>

Many boards use an alias in the stdout-path specification along
with console options after a colon (e.g. serial0:115200n8). When
using earlycon, this specification currently does not work. While
fdt_path_offset supports alias resolution, it does not remove the
console options by itself. Use the fdt_path_offset_namelen variant
and provide the length of the alias to enable aliases with console
options in the stdout-path.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Rob Herring <robh@kernel.org>

Remove "mrvl,lpss-ssp" property from documentation because LPSS SSP type is
for certain Intel platforms. I believe commit a6e56c28
("ARM: pxa: ssp: add DT bindings") added it by accident by copying all
enum pxa_ssp_type types from include/linux/pxa2xx_ssp.h.

Please note this was removed from arch/arm/plat-pxa/ssp.c by the
commit b692cb83 ("ARM: pxa: ssp: Fix build error by removing originally
incorrect DT binding").
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Fix typos in the st,stih4xx binding, in particular replacing
"pinctrl-name" by "pinctrl-names".

Fix minor typos in the descriptions too.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Rob Herring <robh@kernel.org>

This patch allows PCI host controller to function even if part of resources
is unusable for some reason. An example is non-LPAE kernel on a machine
which has some 64-bit resources. Unusable resources will be just skipped
instead of a complete failure.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>

If non-LPAE kernel is booted up on a machine with 64-bit PCI resources,
PCI controller probe fails with:

PCI host bridge /pcie@10000000 ranges:
   IO 0x3eff0000..0x3effffff -> 0x00000000
  MEM 0x10000000..0x3efeffff -> 0x10000000
  MEM 0x8000000000..0xffffffffff -> 0x8000000000
pci-host-generic 3f000000.pcie: resource collision: [mem 0x00000000-0xffffffff] conflicts with /pl011@9000000 [mem 0x09000000-0x09000fff]
pci-host-generic: probe of 3f000000.pcie failed with error -16

This happens because res->start assignment in of_pci_range_to_resource()
truncates the upper part of the address, because res->start is of
phys_addr_t type, which is 32-bit on non-LPAE kernels.

This patch adds explicit recognition of 64-bit resources, preventing from
potential problems when e. g. 0x8000001234 would be converted to
0x00001234.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Pull x86 fixes from Thomas Gleixner:
 "Two bugfixes from Andy addressing at least some of the subtle NMI
  related wreckage which has been reported by Sasha Levin"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/nmi/64: Fix a paravirt stack-clobbering bug in the NMI code
  x86/paravirt: Replace the paravirt nop with a bona fide empty function

Pull irq fix from Thomass Gleixner:
 "A bugfix for the atmel aic5 irq chip driver which caches the wrong
  data and thereby breaking resume"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/atmel-aic5: Use per chip mask caches in mask/unmask()

Pull ARM fixes from Russell King:
 "Just two fixes: wire up the new system calls added during the last
  merge window, and fix another user access site"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: alignment: fix alignment handling for uaccess changes
  ARM: wire up new syscalls

Pull ARM SoC fixes from Olof Johansson:
 "Our first real batch of fixes this release cycle.  Nothing really
  concerning, and diffstat is a bit inflated due to some DT contents
  moving around on STi platforms.

  There's a collection of them here:

   - A fixup for a build breakage that hits on arm64 allmodconfig in
     QCOM SCM firmware drivers
   - MMC fixes for OMAP that had quite a bit of breakage this merge
     window.
   - Misc build/warning fixes on PXA and OMAP
   - A couple of minor fixes for Beagleboard X15 which is now starting
     to see a few more users in the wild"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  ARM: sti: dt: adapt DT to fix probe/bind issues in DRM driver
  ARM: dts: fix omap2+ address translation for pbias
  firmware: qcom: scm: Add function stubs for ARM64
  ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2
  ARM: omap2plus_defconfig: enable GPIO_PCA953X
  ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets
  ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late
  ARM: dts: am57xx-beagle-x15: Update Phy supplies
  ARM: pxa: balloon3: Fix build error
  ARM: dts: Fixup model name for HP t410 dts
  ARM: dts: DRA7: fix a typo in ethernet
  ARM: omap2plus_defconfig: make PCF857x built-in
  ARM: dts: Use ti,pbias compatible string for pbias
  ARM: OMAP5: Cleanup options for SoC only build
  ARM: DRA7: Select missing options for SoC only build
  ARM: OMAP2+: board-generic: Remove stale of_irq macros
  ARM: OMAP4+: PM: erratum is used by OMAP5 and DRA7 as well
  ARM: dts: omap3-igep: Move eth IRQ pinmux to IGEPv2 common dtsi
  ARM: dts: am57xx-beagle-x15: Add wakeup irq for mcp79410
  ARM: dts: am335x-phycore-som: Fix mpu voltage
  ...

Pull CIFS fixes from Steve French:
 "Four fixes from testing at the recent SMB3 Plugfest including two
  important authentication ones (one fixes authentication problems to
  some popular servers when clock times differ more than two hours
  between systems, the other fixes Kerberos authentication for SMB3)"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  fix encryption error checks on mount
  [SMB3] Fix sec=krb5 on smb3 mounts
  cifs: use server timestamp for ntlmv2 authentication
  disabling oplocks/leases via module parm enable_oplocks broken for SMB3

ARM: pxa: fixes for v4.3

These fixes are mainly regression fixes triggered by irq changes,
common clock framework introduction and sound side-effect of
other platforms.

* tag 'pxa-fixes-v4.3' of https://github.com/rjarzmik/linux:
  ARM: pxa: balloon3: Fix build error
  ARM: pxa: ssp: Fix build error by removing originally incorrect DT binding
  ARM: pxa: fix DFI bus lockups on startup
Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'omap-for-v4.3/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps for v4.3-rc cycle:

- Two more patches to fix most of the MMC regressions with the
  PBIAS regulator changes. At least two MMC driver related issues
  still seems to remain for omap3 legacy booting and omap4 duovero.
  Note that the dts changes depend on a recent regulator fix, and
  are based on the regulator commit now in mainline kernel

- Enable autoidle for am43xx clocks to prevent clocks from staying
  always on

- Fix i2c5 pinctrl offsets for omap5-uevm

- Enable PCA953X as that's needed for HDMI to work on omap5

- Update phy supplies for beagle x15 beta board

- Use palmas-usb for on beagle x15 to start using the related
  driver that recently got merged

* tag 'omap-for-v4.3/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: fix omap2+ address translation for pbias
  ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2
  ARM: omap2plus_defconfig: enable GPIO_PCA953X
  ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets
  ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late
  ARM: dts: am57xx-beagle-x15: Update Phy supplies
  regulator: pbias: program pbias register offset in pbias driver
  ARM: omap2plus_defconfig: Enable MUSB DMA support
  ARM: DRA752: Add ID detect for ES2.0
  ARM: OMAP3: vc: fix 'or' always true warning
  ARM: OMAP2+: Fix booting if no timer parent clock is available
  ARM: OMAP2+: omap-device: fix race deferred probe of omap_hsmmc vs omap_device_late_init
Signed-off-by: Olof Johansson <olof@lixom.net>

Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:

   - check the return value of platform_get_irq as signed int in xgene.

   - skip adf_dev_restore on virtual functions in qat.

   - fix double-free with backlogged requests in marvell_cesa"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  hwrng: xgene - fix handling platform_get_irq
  crypto: qat - VF should never trigger SBR on PH
  crypto: marvell - properly handle CRYPTO_TFM_REQ_MAY_BACKLOG-flagged requests

Pull SCSI target fixes from Nicholas Bellinger:
 "This includes a iser-target series from Jenny + Sagi @ Mellanox that
  addresses the few remaining active I/O shutdown bugs, along with a
  patch to support zero-copy for immediate data payloads that gives a
  nice performance improvement for small block WRITEs.

  Also included are some recent >= v4.2 regression bug-fixes.  The most
  notable is a RCU conversion regression for SPC-3 PR registrations, and
  recent removal of obsolete RFC-3720 markers that introduced a login
  regression bug with MSFT iSCSI initiators.

  Thanks to everyone who has been testing + reporting bugs for v4.x"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi-target: Avoid OFMarker + IFMarker negotiation
  target: Make TCM_WRITE_PROTECT failure honor D_SENSE bit
  target: Fix target_sense_desc_format NULL pointer dereference
  target: Propigate backend read-only to core_tpg_add_lun
  target: Fix PR registration + APTPL RCU conversion regression
  iser-target: Skip data copy if all the command data comes as immediate
  iser-target: Change the recv buffers posting logic
  iser-target: Fix pending connections handling in target stack shutdown sequnce
  iser-target: Remove np_ prefix from isert_np members
  iser-target: Remove unused variables
  iser-target: Put the reference on commands waiting for unsol data
  iser-target: remove command with state ISTATE_REMOVE

Pull USB fixes from Greg KH:
 "Here are some USB driver fixes for 4.3-rc3.

  There's the usual assortment of new device ids, combined with xhci and
  gadget driver fixes.  Full details in the shortlog.  All of these have
  been in linux-next with no reported problems"

* tag 'usb-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (34 commits)
  MAINTAINERS: remove amd5536udc USB gadget driver maintainer
  USB: whiteheat: fix potential null-deref at probe
  xhci: init command timeout timer earlier to avoid deleting it uninitialized
  xhci: change xhci 1.0 only restrictions to support xhci 1.1
  usb: xhci: exit early in xhci_setup_device() if we're halted or dying
  usb: xhci: stop everything on the first call to xhci_stop
  usb: xhci: Clear XHCI_STATE_DYING on start
  usb: xhci: lock mutex on xhci_stop
  xhci: Move xhci_pme_quirk() behind #ifdef CONFIG_PM
  xhci: give command abortion one more chance before killing xhci
  usb: Use the USB_SS_MULT() macro to get the burst multiplier.
  usb: dwc3: gadget: Fix BUG in RT config
  usb: musb: fix cppi channel teardown for isoch transfer
  usb: phy: isp1301: Export I2C module alias information
  usb: gadget: drop null test before destroy functions
  usb: gadget: dummy_hcd: in transfer(), return data sent, not limit
  usb: gadget: dummy_hcd: fix rescan logic for transfer
  usb: gadget: dummy_hcd: fix unneeded else-if condition
  usb: gadget: dummy_hcd: emulate sending zlp in packet logic
  usb: musb: dsps: fix polling in device-only mode
  ...

Pull serial driver fix from Greg KH:
 "Here is one serial driver fix for 4.3-rc3 that resolves a module
  loading issue due to splitting up of the 8250 driver into smaller
  pieces.  It's been in linux-next with no reported problems"

* tag 'tty-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: serial: Add missing module license for 8250_base.ko

Pull staging driver fixes from Greg KH:
 "Here are some tiny staging driver and documentation fixes for 4.3-rc3.

  All of these resolve reported issues that people have found and have
  been in the linux-next tree for a while with no problems"

* tag 'staging-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  MAINTAINERS: Update email address for Martyn Welch
  staging: ion: fix corruption of ion_import_dma_buf
  staging: dgap: Remove myself from the MAINTAINERS file
  staging: most: Add dependency to HAS_IOMEM
  staging: unisys: remove reference of visorutil
  staging: unisys: visornic: handle error return from device registration
  staging: unisys: stop device registration before visorbus registration
  staging: unisys: visorbus: Unregister driver on error
  staging: unisys: visornic: Fix receive bytes statistics
  staging: unisys: unregister netdev when create debugfs fails
  staging: fbtft: replace master->setup() with spi_setup()
  staging: fbtft: fix 9-bit SPI support detection
  staging/lustre: change Lustre URLs and mailing list
  staging/android: Update ION TODO per LPC discussion
  Staging: most: MOST and MOSTCORE should depend on HAS_DMA
  staging: most: fix HDM_USB dependencies and build errors

Pull driver core fix from Greg KH:
 "Here is one driver core fix for 4.3-rc3 that resolves a reported oops"

* tag 'driver-core-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  cpu/cacheinfo: Fix teardown path

Pull char/misc driver fixes from Greg KH:
 "Here's some tiny char and misc driver fixes that resolve some reported
  errors for 4.3-rc3.

  All of these have been in linux-next with no problems for a while"

* tag 'char-misc-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  extcon: Fix attached value returned by is_extcon_changed
  Drivers: hv: vmbus: fix init_vp_index() for reloading hv_netvsc
  mei: fix debugfs files leak on error path
  thunderbolt: Allow loading of module on recent Apple MacBooks with thunderbolt 2 controller

Pull networking fixes from David Miller:

 1) When we run a tap on netlink sockets, we have to copy mmap'd SKBs
    instead of cloning them.  From Daniel Borkmann.

 2) When converting classical BPF into eBPF, fix the setting of the
    source reg to BPF_REG_X.  From Tycho Andersen.

 3) Fix igmpv3/mldv2 report parsing in the bridge multicast code, from
    Linus Lussing.

 4) Fix dst refcounting for ipv6 tunnels, from Martin KaFai Lau.

 5) Set NLM_F_REPLACE flag properly when replacing ipv6 routes, from
    Roopa Prabhu.

 6) Add some new cxgb4 PCI device IDs, from Hariprasad Shenai.

 7) Fix headroom tests and SKB leaks in ipv6 fragmentation code, from
    Florian Westphal.

 8) Check DMA mapping errors in bna driver, from Ivan Vecera.

 9) Several 8139cp bug fixes (dev_kfree_skb_any in interrupt context,
    misclearing of interrupt status in TX timeout handler, etc.) from
    David Woodhouse.

10) In tipc, reset SKB header pointer after skb_linearize(), from Erik
    Hugne.

11) Fix autobind races et al. in netlink code, from Herbert Xu with
    help from Tejun Heo and others.

12) Missing SET_NETDEV_DEV in sunvnet driver, from Sowmini Varadhan.

13) Fix various races in timewait timer and reqsk_queue_hadh_req, from
    Eric Dumazet.

14) Fix array overruns in mac80211, from Johannes Berg and Dan
    Carpenter.

15) Fix data race in rhashtable_rehash_one(), from Dmitriy Vyukov.

16) Fix race between poll_one_napi and napi_disable, from Neil Horman.

17) Fix byte order in geneve tunnel port config, from John W Linville.

18) Fix handling of ARP replies over lightweight tunnels, from Jiri
    Benc.

19) We can loop when fib rule dumps cross multiple SKBs, fix from Wilson
    Kok and Roopa Prabhu.

20) Several reference count handling bug fixes in the PHY/MDIO layer
    from Russel King.

21) Fix lockdep splat in ppp_dev_uninit(), from Guillaume Nault.

22) Fix crash in icmp_route_lookup(), from David Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits)
  net: Fix panic in icmp_route_lookup
  net: update docbook comment for __mdiobus_register()
  ppp: fix lockdep splat in ppp_dev_uninit()
  net: via/Kconfig: GENERIC_PCI_IOMAP required if PCI not selected
  phy: marvell: add link partner advertised modes
  net: fix net_device refcounting
  phy: add phy_device_remove()
  phy: fixed-phy: properly validate phy in fixed_phy_update_state()
  net: fix phy refcounting in a bunch of drivers
  of_mdio: fix MDIO phy device refcounting
  phy: add proper phy struct device refcounting
  phy: fix mdiobus module safety
  net: dsa: fix of_mdio_find_bus() device refcount leak
  phy: fix of_mdio_find_bus() device refcount leak
  ip6_tunnel: Reduce log level in ip6_tnl_err() to debug
  ip6_gre: Reduce log level in ip6gre_err() to debug
  fib_rules: fix fib rule dumps across multiple skbs
  bnx2x: byte swap rss_key to comply to Toeplitz specs
  net: revert "net_sched: move tp->root allocation into fw_init()"
  lwtunnel: remove source and destination UDP port config option
  ...

Andrey reported a panic:

[ 7249.865507] BUG: unable to handle kernel pointer dereference at 000000b4
[ 7249.865559] IP: [<c16afeca>] icmp_route_lookup+0xaa/0x320
[ 7249.865598] *pdpt = 0000000030f7f001 *pde = 0000000000000000
[ 7249.865637] Oops: 0000 [#1]
...
[ 7249.866811] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
4.3.0-999-generic #201509220155
[ 7249.866876] Hardware name: MSI MS-7250/MS-7250, BIOS 080014  08/02/2006
[ 7249.866916] task: c1a5ab00 ti: c1a52000 task.ti: c1a52000
[ 7249.866949] EIP: 0060:[<c16afeca>] EFLAGS: 00210246 CPU: 0
[ 7249.866981] EIP is at icmp_route_lookup+0xaa/0x320
[ 7249.867012] EAX: 00000000 EBX: f483ba48 ECX: 00000000 EDX: f2e18a00
[ 7249.867045] ESI: 000000c0 EDI: f483ba70 EBP: f483b9ec ESP: f483b974
[ 7249.867077]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 7249.867108] CR0: 8005003b CR2: 000000b4 CR3: 36ee07c0 CR4: 000006f0
[ 7249.867141] Stack:
[ 7249.867165]  320310ee 00000000 00000042 320310ee 00000000 c1aeca00
f3920240 f0c69180
[ 7249.867268]  f483ba04 f855058b a89b66cd f483ba44 f8962f4b 00000000
e659266c f483ba54
[ 7249.867361]  8004753c f483ba5c f8962f4b f2031140 000003c1 ffbd8fa0
c16b0e00 00000064
[ 7249.867448] Call Trace:
[ 7249.867494]  [<f855058b>] ? e1000_xmit_frame+0x87b/0xdc0 [e1000e]
[ 7249.867534]  [<f8962f4b>] ? tcp_in_window+0xeb/0xb10 [nf_conntrack]
[ 7249.867576]  [<f8962f4b>] ? tcp_in_window+0xeb/0xb10 [nf_conntrack]
[ 7249.867615]  [<c16b0e00>] ? icmp_send+0xa0/0x380
[ 7249.867648]  [<c16b102f>] icmp_send+0x2cf/0x380
[ 7249.867681]  [<f89c8126>] nf_send_unreach+0xa6/0xc0 [nf_reject_ipv4]
[ 7249.867714]  [<f89cd0da>] reject_tg+0x7a/0x9f [ipt_REJECT]
[ 7249.867746]  [<f88c29a7>] ipt_do_table+0x317/0x70c [ip_tables]
[ 7249.867780]  [<f895e0a6>] ? __nf_conntrack_find_get+0x166/0x3b0
[nf_conntrack]
[ 7249.867838]  [<f895eea8>] ? nf_conntrack_in+0x398/0x600 [nf_conntrack]
[ 7249.867889]  [<f84c0035>] iptable_filter_hook+0x35/0x80 [iptable_filter]
[ 7249.867933]  [<c16776a1>] nf_iterate+0x71/0x80
[ 7249.867970]  [<c1677715>] nf_hook_slow+0x65/0xc0
[ 7249.868002]  [<c1681811>] __ip_local_out_sk+0xc1/0xd0
[ 7249.868034]  [<c1680f30>] ? ip_forward_options+0x1a0/0x1a0
[ 7249.868066]  [<c1681836>] ip_local_out_sk+0x16/0x30
[ 7249.868097]  [<c1684054>] ip_send_skb+0x14/0x80
[ 7249.868129]  [<c16840f4>] ip_push_pending_frames+0x34/0x40
[ 7249.868163]  [<c16844a2>] ip_send_unicast_reply+0x282/0x310
[ 7249.868196]  [<c16a0863>] tcp_v4_send_reset+0x1b3/0x380
[ 7249.868227]  [<c16a1b63>] tcp_v4_rcv+0x323/0x990
[ 7249.868257]  [<c16776a1>] ? nf_iterate+0x71/0x80
[ 7249.868289]  [<c167dc2b>] ip_local_deliver_finish+0x8b/0x230
[ 7249.868322]  [<c167df4c>] ip_local_deliver+0x4c/0xa0
[ 7249.868353]  [<c167dba0>] ? ip_rcv_finish+0x390/0x390
[ 7249.868384]  [<c167d88c>] ip_rcv_finish+0x7c/0x390
[ 7249.868415]  [<c167e280>] ip_rcv+0x2e0/0x420
...

Prior to the VRF change the oif was not set in the flow struct, so the
VRF support should really have only added the vrf_master_ifindex lookup.

Fixes: 613d09b3 ("net: Use VRF device index for lookups on TX")
Cc: Andrey Melnikov <temnota.am@gmail.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Update the docbook comment for __mdiobus_register() to include the new
module owner argument.  This resolves a warning found by the 0-day
builder.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

Thomas can no longer work on the driver, so he asked me to mark the
MAINTAINER entry as "Orphan" with the hope that someone else would
someday pick it up.

Cc: Thomas Dahlmann <dahlmann.thomas@arcor.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Pull another cgroup fix from Tejun Heo:
 "The cgroup writeback support got inadvertently enabled for traditional
  hierarchies revealing two regressions which are currently being worked
  on.  It shouldn't have been enabled on traditional hierarchies, so
  disable it on them.  This is enough to make the regressions go away
  for people who aren't experimenting with cgroup"

* 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup, writeback: don't enable cgroup writeback on traditional hierarchies

ppp_dev_uninit() locks all_ppp_mutex while under rtnl mutex protection.
ppp_create_interface() must then lock these mutexes in that same order
to avoid possible deadlock.

[  120.880011] ======================================================
[  120.880011] [ INFO: possible circular locking dependency detected ]
[  120.880011] 4.2.0 #1 Not tainted
[  120.880011] -------------------------------------------------------
[  120.880011] ppp-apitest/15827 is trying to acquire lock:
[  120.880011]  (&pn->all_ppp_mutex){+.+.+.}, at: [<ffffffffa0145f56>] ppp_dev_uninit+0x64/0xb0 [ppp_generic]
[  120.880011]
[  120.880011] but task is already holding lock:
[  120.880011]  (rtnl_mutex){+.+.+.}, at: [<ffffffff812e4255>] rtnl_lock+0x12/0x14
[  120.880011]
[  120.880011] which lock already depends on the new lock.
[  120.880011]
[  120.880011]
[  120.880011] the existing dependency chain (in reverse order) is:
[  120.880011]
[  120.880011] -> #1 (rtnl_mutex){+.+.+.}:
[  120.880011]        [<ffffffff81073a6f>] lock_acquire+0xcf/0x10e
[  120.880011]        [<ffffffff813ab18a>] mutex_lock_nested+0x56/0x341
[  120.880011]        [<ffffffff812e4255>] rtnl_lock+0x12/0x14
[  120.880011]        [<ffffffff812d9d94>] register_netdev+0x11/0x27
[  120.880011]        [<ffffffffa0147b17>] ppp_ioctl+0x289/0xc98 [ppp_generic]
[  120.880011]        [<ffffffff8113b367>] do_vfs_ioctl+0x4ea/0x532
[  120.880011]        [<ffffffff8113b3fd>] SyS_ioctl+0x4e/0x7d
[  120.880011]        [<ffffffff813ad7d7>] entry_SYSCALL_64_fastpath+0x12/0x6f
[  120.880011]
[  120.880011] -> #0 (&pn->all_ppp_mutex){+.+.+.}:
[  120.880011]        [<ffffffff8107334e>] __lock_acquire+0xb07/0xe76
[  120.880011]        [<ffffffff81073a6f>] lock_acquire+0xcf/0x10e
[  120.880011]        [<ffffffff813ab18a>] mutex_lock_nested+0x56/0x341
[  120.880011]        [<ffffffffa0145f56>] ppp_dev_uninit+0x64/0xb0 [ppp_generic]
[  120.880011]        [<ffffffff812d5263>] rollback_registered_many+0x19e/0x252
[  120.880011]        [<ffffffff812d5381>] rollback_registered+0x29/0x38
[  120.880011]        [<ffffffff812d53fa>] unregister_netdevice_queue+0x6a/0x77
[  120.880011]        [<ffffffffa0146a94>] ppp_release+0x42/0x79 [ppp_generic]
[  120.880011]        [<ffffffff8112d9f6>] __fput+0xec/0x192
[  120.880011]        [<ffffffff8112dacc>] ____fput+0x9/0xb
[  120.880011]        [<ffffffff8105447a>] task_work_run+0x66/0x80
[  120.880011]        [<ffffffff81001801>] prepare_exit_to_usermode+0x8c/0xa7
[  120.880011]        [<ffffffff81001900>] syscall_return_slowpath+0xe4/0x104
[  120.880011]        [<ffffffff813ad931>] int_ret_from_sys_call+0x25/0x9f
[  120.880011]
[  120.880011] other info that might help us debug this:
[  120.880011]
[  120.880011]  Possible unsafe locking scenario:
[  120.880011]
[  120.880011]        CPU0                    CPU1
[  120.880011]        ----                    ----
[  120.880011]   lock(rtnl_mutex);
[  120.880011]                                lock(&pn->all_ppp_mutex);
[  120.880011]                                lock(rtnl_mutex);
[  120.880011]   lock(&pn->all_ppp_mutex);
[  120.880011]
[  120.880011]  *** DEADLOCK ***

Fixes: 8cb775bc ("ppp: fix device unregistration upon netns deletion")
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>