Pull cgroup updates from Tejun Heo:
 "Nothing major. Two notable fixes are Li's second stab at fixing the
  long-standing race condition in the mount path and suppression of
  spurious warning from cgroup_get(). All other changes are trivial"

* 'for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: mark cgroup_get() with __maybe_unused
  cgroup: avoid attaching a cgroup root to two different superblocks, take 2
  cgroup: fix spurious warnings on cgroup_is_dead() from cgroup_sk_alloc()
  cgroup: move cgroup_subsys_state parent field for cache locality
  cpuset: Remove cpuset_update_active_cpus()'s parameter.
  cgroup: switch to BUG_ON()
  cgroup: drop duplicate header nsproxy.h
  kernel: convert css_set.refcount from atomic_t to refcount_t
  kernel: convert cgroup_namespace.count from atomic_t to refcount_t

Pull workqueue update from Tejun Heo:
 "One trivial patch to use setup_deferrable_timer() instead of
  open-coding the initialization"

* 'for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: use setup_deferrable_timer

Pull libata updates from Tejun Heo:
 "The biggest core change is removal of SCT WRITE SAME support, which
  never worked properly.

  Other than that, trivial updates in core code and specific embedded
  driver updates"

* 'for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: remove SCT WRITE SAME support
  libata: reject passthrough WRITE SAME requests
  dt-bindings: ata: add DT bindings for ahci-dm816 SATA controller
  ata: ahci: add support for DaVinci DM816 SATA controller
  pata: remove the at91 driver
  libata: make ata_sg_clean static over again
  libata: use setup_deferrable_timer
  ata: allow subsystem to be used on m32r and s390 archs
  Delete redundant return value check of platform_get_resource()
  ata: constify of_device_id structures

Pull LED updates from Jacek Anaszewski:
 "New drivers:

   - add LED support for MT6323 PMIC

   - add LED support for Motorola CPCAP PMIC

  New features and improvements:

   - add LED trigger for all CPUs aggregated which is useful on tiny
     boards with more CPU cores than LED pins

   - add OF variants of LED registering functions as a preparation for
     adding generic support for Device Tree parsing

   - dell-led improvements and cleanups, followed by moving it to the
     x86 platform driver subsystem which is a more appropriate place for
     it

   - extend pca9532 Device Tree support by adding the LEDs
     'default-state' property

   - extend pca963x Device Tree support by adding nxp,inverted-out
     property for inverting the polarity of the output

   - remove ACPI support for lp3952 since it relied on a non-official
     ACPI IDs"

* tag 'leds_for_4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
  leds: pca9532: Extend pca9532 device tree support
  leds: cpcap: new driver
  mfd: cpcap: Add missing include dependencies
  leds: lp3952: Use 'if (ret)' pattern
  leds: lp3952: Remove ACPI support for lp3952
  leds: mt6323: Fix an off by one bug in probe
  dt-bindings: leds: Add document bindings for leds-mt6323
  leds: Add LED support for MT6323 PMIC
  leds: gpio: use OF variant of LED registering function
  leds: core: add OF variants of LED registering functions
  platform/x86: dell-wmi-led: fix coding style issues
  dell-led: move driver to drivers/platform/x86/dell-wmi-led.c
  dell-led: remove code related to mic mute LED
  platform/x86: dell-laptop: import dell_micmute_led_set() from drivers/leds/dell-led.c
  ALSA: hda - rename dell_led_set_func to dell_micmute_led_set_func
  ALSA: hda - use dell_micmute_led_set() instead of dell_app_wmi_led_set()
  dell-led: remove GUID check from dell_micmute_led_set()
  leds/trigger/cpu: Add LED trigger for all CPUs aggregated

Pull mailbox updates from Jassi Brar:

 - new driver for Broadcom FlexRM controller

 - constify data structures of callback functions in some drivers

 - a few bug fixes uncovered by multi-threaded use of mailbox channels
   in blocking mode

* 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox: handle empty message in tx_tick
  mailbox: skip complete wait event if timer expired
  mailbox: always wait in mbox_send_message for blocking Tx mode
  mailbox: Remove depends on COMPILE_TEST for BCM_FLEXRM_MBOX
  mailbox: check ->last_tx_done for NULL in case of timer-based polling
  dt-bindings: Add DT bindings info for FlexRM ring manager
  mailbox: Add driver for Broadcom FlexRM ring manager
  dt-bindings: mailbox: Update doc with NSP PDC/mailbox support
  mailbox: bcm-pdc: Add Northstar Plus support to PDC driver
  mailbox: constify mbox_chan_ops structures

Pull IPMI updates from Corey Minyard:
 "A few fixes of things in the IPMI area, the watchdog would have issues
  at panic time cause by a recently introduced change, a problem with
  device numbering, one possible panic in the I2C driver (destined for
  stable).

  Nothing earth-shattering, but some things that need to go in"

* tag 'for-linux-4.12' of git://github.com/cminyard/linux-ipmi:
  ipmi/watchdog: fix wdog hang on panic waiting for ipmi response
  ipmi_si: use smi_num for init_name
  ipmi: bt-bmc: Add ast2500 compatible string
  ACPI / IPMI: change warning to debug on timeout
  ACPI / IPMI: allow ACPI_IPMI with IPMI_SSIF
  ipmi_ssif: use setup_timer
  ipmi: Fix kernel panic at ipmi_ssif_thread()

Pull HSI fix from Sebastian Reichel:
 "Fix double free fix in ssi-protocol"

* tag 'hsi-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
  HSI: ssi_protocol: double free in ssip_pn_xmit()

Pull power supply and reset updates from Sebastian Reichel:
 "New drivers:
   - gemini-poweroff
   - cpcap-charger (for Motorola Droid 4)
   - battery-lego-ev3 (for LEGO Mindstorms EV3)

  New chip/feature support:
   - bq24190-charger: add runtime PM support
   - bq24190-charger: add bq24192i support
   - register masking for syscon-poweroff

  ... and misc small fixes & cleanups

* tag 'for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (29 commits)
  power: supply: bq24190_charger: Use new extcon_register_notifier_all()
  power: supply: bq24190_charger: Longer delay while polling reset flag
  power: supply: bq24190_charger: Uniform pm_runtime_get() failure handling
  power: supply: bq24190_charger: Clean up extcon code
  power: supply: bq24190_charger: Limit over/under voltage fault logging
  power: supply: New driver for LEGO MINDSTORMS EV3 battery
  dt-bindings: power: supply: New bindings for LEGO MINDSTORMS EV3 battery
  power: supply: tps65217: remove debug messages for function calls
  power: supply: ltc2941-battery-gauge: Add OF device ID table
  power: supply: ltc2941-battery-gauge: Add vendor to compatibles in binding
  power: supply: charger-manager: simplify return statements
  power: supply: lp8788: prevent out of bounds array access
  power: supply: cpcap-charger: Add minimal CPCAP PMIC battery charger
  power: supply: bq24190_charger: Use extcon to determine ilimit, 5v boost
  power: supply: bq24190_charger: Add support for bq24192i
  power: supply: bq24190_charger: Use i2c-core irq-mapping code
  power: bq24190_charger: mark PM functions as __maybe_unused
  power: supply: sbs-charger: simplified bool function
  power: supply: ab8500: Replaced spaces with tabs in indent
  power: supply: bq25890: Use gpiod_get()
  ...

a590b90d ("cgroup: fix spurious warnings on cgroup_is_dead() from
cgroup_sk_alloc()") converted most cgroup_get() usages to
cgroup_get_live() leaving cgroup_sk_alloc() the sole user of
cgroup_get().  When !CONFIG_SOCK_CGROUP_DATA, this ends up triggering
unused warning for cgroup_get().

Silence the warning by adding __maybe_unused to cgroup_get().
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: http://lkml.kernel.org/r/20170501145340.17e8ef86@canb.auug.org.auSigned-off-by: Tejun Heo <tj@kernel.org>

Merge tag 'hwmon-for-linus-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:

 - removed twl4030-madc driver

 - added ASPEED PWM/fan driver

 - various minor improvements and fixes in several drivers

* tag 'hwmon-for-linus-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (36 commits)
  hwmon: (twl4030-madc) drop driver
  hwmon: (tmp103) Use SIMPLE_DEV_PM_OPS helper macro
  hwmon: (adt7475) set start bit in probe
  hwmon: (ina209) Handled signed registers
  hwmon: (lm87) Add OF device ID table
  hwmon: (lm87) Remove unused I2C devices driver_data
  drivers: hwmon: Support for ASPEED PWM/Fan tach
  Documentation: dt-bindings: Document bindings for ASPEED AST2400/AST2500 PWM and Fan tach controller device driver
  hwmon: (lm87) Allow channel data to be set from dts file
  Documentation: dtb: lm87: Add hwmon binding documentation
  hwmon: (ads7828) Accept optional parameters from device tree
  hwmon: (dell-smm) Add Dell XPS 15 9560 into DMI list
  hwmon: Constify str parameter of hwmon_ops->read_string
  dt: Add vendor prefix for Sensirion
  hwmon: (tmp421) Add OF device ID table
  hwmon: (tmp103) Add OF device ID table
  hwmon: (tmp102) Add OF device ID table
  hwmon: (stts751) Add OF device ID table
  hwmon: (ucd9200) Add OF device ID table
  hwmon: (ucd9000) Add OF device ID table
  ...

Pull EDAC updates from Borislav Petkov:

 - an EDAC driver for Cavium ThunderX RAS IP (Sergey Temerkhanov)

 - removal of DRAM error reporting through PCI SERR NMI (Borislav
   Petkov)

 - misc small fixes (Jan Glauber, Thor Thayer)

* tag 'edac_for_4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, ghes: Do not enable it by default
  EDAC: Rename report status accessors
  EDAC: Delete edac_stub.c
  EDAC: Update Kconfig help text
  EDAC: Remove EDAC_MM_EDAC
  EDAC: Issue tracepoint only when it is defined
  ACPI/extlog: Add EDAC dependency
  EDAC: Move edac_op_state to edac_mc.c
  EDAC: Remove edac_err_assert
  EDAC: Get rid of edac_handlers
  x86/nmi, EDAC: Get rid of DRAM error reporting thru PCI SERR NMI
  EDAC, highbank: Align Makefile directives
  EDAC, thunderx: Remove unused code
  EDAC, thunderx: Change LMC index calculation
  EDAC, altera: Fix peripheral warnings for Cyclone5
  EDAC, thunderx: Fix L2C MCI interrupt disable
  EDAC, thunderx: Add Cavium ThunderX EDAC driver

Pull second round of block layer updates from Jens Axboe:

 - Further fixups to the NVMe APST code, from Andy.

 - Various fixes for (mostly) nvme-fc, from Christoph and James.

 - NVMe scsi fixes from Jon and Christoph.

* 'for-4.12/post-merge' of git://git.kernel.dk/linux-block: (39 commits)
  nvme-scsi: remove nvme_trans_security_protocol
  nvme-lightnvm: add missing endianess conversion in nvme_nvm_end_io
  nvme-scsi: Consider LBA format in IO splitting calculation
  nvme-fc: avoid memory corruption caused by calling nvmf_free_options() twice
  lpfc: Fix memory corruption of the lpfc_ncmd->list pointers
  nvme: Add nvme_core.force_apst to ignore the NO_APST quirk
  nvme: Display raw APST configuration via DYNAMIC_DEBUG
  nvme: Fix APST comment
  lpfc revison 11.2.0.12
  Fix Express lane queue creation.
  Update ABORT processing for NVMET.
  Fix implicit logo and RSCN handling for NVMET
  Add Fabric assigned WWN support.
  Fix max_sgl_segments settings for NVME / NVMET
  Fix crash after issuing lip reset
  Fix driver load issues when MRQ=8
  Remove hba lock from NVMET issue WQE.
  Fix nvme initiator handling when not enabled.
  Fix driver usage of 128B WQEs when WQ_CREATE is V1.
  Fix driver unload/reload operation.
  ...

Pull block layer updates from Jens Axboe:

 - Add BFQ IO scheduler under the new blk-mq scheduling framework. BFQ
   was initially a fork of CFQ, but subsequently changed to implement
   fairness based on B-WF2Q+, a modified variant of WF2Q. BFQ is meant
   to be used on desktop type single drives, providing good fairness.
   From Paolo.

 - Add Kyber IO scheduler. This is a full multiqueue aware scheduler,
   using a scalable token based algorithm that throttles IO based on
   live completion IO stats, similary to blk-wbt. From Omar.

 - A series from Jan, moving users to separately allocated backing
   devices. This continues the work of separating backing device life
   times, solving various problems with hot removal.

 - A series of updates for lightnvm, mostly from Javier. Includes a
   'pblk' target that exposes an open channel SSD as a physical block
   device.

 - A series of fixes and improvements for nbd from Josef.

 - A series from Omar, removing queue sharing between devices on mostly
   legacy drivers. This helps us clean up other bits, if we know that a
   queue only has a single device backing. This has been overdue for
   more than a decade.

 - Fixes for the blk-stats, and improvements to unify the stats and user
   windows. This both improves blk-wbt, and enables other users to
   register a need to receive IO stats for a device. From Omar.

 - blk-throttle improvements from Shaohua. This provides a scalable
   framework for implementing scalable priotization - particularly for
   blk-mq, but applicable to any type of block device. The interface is
   marked experimental for now.

 - Bucketized IO stats for IO polling from Stephen Bates. This improves
   efficiency of polled workloads in the presence of mixed block size
   IO.

 - A few fixes for opal, from Scott.

 - A few pulls for NVMe, including a lot of fixes for NVMe-over-fabrics.
   From a variety of folks, mostly Sagi and James Smart.

 - A series from Bart, improving our exposed info and capabilities from
   the blk-mq debugfs support.

 - A series from Christoph, cleaning up how handle WRITE_ZEROES.

 - A series from Christoph, cleaning up the block layer handling of how
   we track errors in a request. On top of being a nice cleanup, it also
   shrinks the size of struct request a bit.

 - Removal of mg_disk and hd (sorry Linus) by Christoph. The former was
   never used by platforms, and the latter has outlived it's usefulness.

 - Various little bug fixes and cleanups from a wide variety of folks.

* 'for-4.12/block' of git://git.kernel.dk/linux-block: (329 commits)
  block: hide badblocks attribute by default
  blk-mq: unify hctx delay_work and run_work
  block: add kblock_mod_delayed_work_on()
  blk-mq: unify hctx delayed_run_work and run_work
  nbd: fix use after free on module unload
  MAINTAINERS: bfq: Add Paolo as maintainer for the BFQ I/O scheduler
  blk-mq-sched: alloate reserved tags out of normal pool
  mtip32xx: use runtime tag to initialize command header
  scsi: Implement blk_mq_ops.show_rq()
  blk-mq: Add blk_mq_ops.show_rq()
  blk-mq: Show operation, cmd_flags and rq_flags names
  blk-mq: Make blk_flags_show() callers append a newline character
  blk-mq: Move the "state" debugfs attribute one level down
  blk-mq: Unregister debugfs attributes earlier
  blk-mq: Only unregister hctxs for which registration succeeded
  blk-mq-debugfs: Rename functions for registering and unregistering the mq directory
  blk-mq: Let blk_mq_debugfs_register() look up the queue name
  blk-mq: Register <dev>/queue/mq after having registered <dev>/queue
  ide-pm: always pass 0 error to ide_complete_rq in ide_do_devset
  ide-pm: always pass 0 error to __blk_end_request_all
  ..

This driver is no longer needed:

 * It has no mainline users
 * It has no DT support and OMAP is DT only
 * iio-hwmon can be used for madc, which also works with DT
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Pull x86 fixes from Thomas Gleixner:
 "The final fixes for 4.11:

   - prevent a triple fault with function graph tracing triggered via
     suspend to ram

   - prevent optimizing for size when function graph tracing is enabled
     and the compiler does not support -mfentry

   - prevent mwaitx() being called with a zero timeout as mwaitx() might
     never return. Observed on the new Ryzen CPUs"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Prevent timer value 0 for MWAITX
  x86/build: convert function graph '-Os' error to warning
  ftrace/x86: Fix triple fault with graph tracing and suspend-to-ram

Pull scheduler fix from Thomas Gleixner:
 "A single fix for a cputime accounting regression which got introduced
  in the 4.11 cycle"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/cputime: Fix ksoftirqd cputime accounting regression

Newer hardware has uncovered a bug in the software implementation of
using MWAITX for the delay function. A value of 0 for the timer is meant
to indicate that a timeout will not be used to exit MWAITX. On newer
hardware this can result in MWAITX never returning, resulting in NMI
soft lockup messages being printed. On older hardware, some of the other
conditions under which MWAITX can exit masked this issue. The AMD APM
does not currently document this and will be updated.

Please refer to http://marc.info/?l=kvm&m=148950623231140 for
information regarding NMI soft lockup messages on an AMD Ryzen 1800X.
This has been root-caused as a 0 passed to MWAITX causing it to wait
indefinitely.

This change has the added benefit of avoiding the unnecessary setup of
MONITORX/MWAITX when the delay value is zero.
Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Link: http://lkml.kernel.org/r/1493156643-29366-1-git-send-email-Janakarajan.Natarajan@amd.comSigned-off-by: Thomas Gleixner <tglx@linutronix.de>

Pull iov iter fix from Al Viro.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix a braino in ITER_PIPE iov_iter_revert()

Fixes: 27c0e374Tested-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Pull clk fix from Stephen Boyd:
 "One odd config build fix for a recent Allwinner clock driver change
  that got merged. The common code called code in another file that
  wasn't always built. This just forces it on so people don't run into
  this bad configuration"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: sunxi-ng: always select CCU_GATE

This was already disabled a while ago because it caused I/O errors,
and it's severly getting into the way of the discard / write zeroes
rework.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

The WRITE SAME to TRIM translation rewrites the DATA OUT buffer.  While
the SCSI code accomodates for this by passing a read-writable buffer
userspace applications don't cater for this behavior.  In fact it can
be used to rewrite e.g. a readonly file through mmap and should be
considered as a security fix.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

Commit bfb0b80d ("cgroup: avoid attaching a cgroup root to two
different superblocks") is broken.  Now we try to fix the race by
delaying the initialization of cgroup root refcnt until a superblock
has been allocated.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reported-by: Andrei Vagin <avagin@virtuozzo.com>
Tested-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

Pull networking fixes from David Miller:
 "Just a couple more stragglers, I really hope this is it.

  1) Don't let frags slip down into the GRO segmentation handlers, from
     Steffen Klassert.

  2) Truesize under-estimation triggers warnings in TCP over loopback
     with socket filters, 2 part fix from Eric Dumazet.

  3) Fix undesirable reset of bonding MTU to ETH_HLEN on slave removal,
     from Paolo Abeni.

  4) If we flush the XFRM policy after garbage collection, it doesn't
     work because stray entries can be created afterwards. Fix from Xin
     Long.

  5) Hung socket connection fixes in TIPC from Parthasarathy Bhuvaragan.

  6) Fix GRO regression with IPSEC when netfilter is disabled, from
     Sabrina Dubroca.

  7) Fix cpsw driver Kconfig dependency regression, from Arnd Bergmann"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net: hso: register netdev later to avoid a race condition
  net: adjust skb->truesize in ___pskb_trim()
  tcp: do not underestimate skb->truesize in tcp_trim_head()
  bonding: avoid defaulting hard_header_len to ETH_HLEN on slave removal
  ipv4: Don't pass IP fragments to upper layer GRO handlers.
  cpsw/netcp: refine cpts dependency
  tipc: close the connection if protocol messages contain errors
  tipc: improve error validations for sockets in CONNECTING state
  tipc: Fix missing connection request handling
  xfrm: fix GRO for !CONFIG_NETFILTER
  xfrm: do the garbage collection after flushing policy

If the netdev is accessed before the urbs are initialized,
there will be NULL pointer dereferences. That is avoided by
registering it when it is fully initialized.

This case occurs e.g. if dhcpcd is running in the background
and the device is probed, either after insmod hso or
when the device appears on the usb bus.

A backtrace is the following:

[ 1357.356048] usb 1-2: new high-speed USB device number 12 using ehci-omap
[ 1357.551177] usb 1-2: New USB device found, idVendor=0af0, idProduct=8800
[ 1357.558654] usb 1-2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[ 1357.568572] usb 1-2: Product: Globetrotter HSUPA Modem
[ 1357.574096] usb 1-2: Manufacturer: Option N.V.
[ 1357.685882] hso 1-2:1.5: Not our interface
[ 1460.886352] hso: unloaded
[ 1460.889984] usbcore: deregistering interface driver hso
[ 1513.769134] hso: ../drivers/net/usb/hso.c: Option Wireless
[ 1513.846771] Unable to handle kernel NULL pointer dereference at virtual address 00000030
[ 1513.887664] hso 1-2:1.5: Not our interface
[ 1513.906890] usbcore: registered new interface driver hso
[ 1513.937988] pgd = ecdec000
[ 1513.949890] [00000030] *pgd=acd15831, *pte=00000000, *ppte=00000000
[ 1513.956573] Internal error: Oops: 817 [#1] PREEMPT SMP ARM
[ 1513.962371] Modules linked in: hso usb_f_ecm omap2430 bnep bluetooth g_ether usb_f_rndis u_ether libcomposite configfs ipv6 arc4 wl18xx wlcore mac80211 cfg80211 bq27xxx_battery panel_tpo_td028ttec1 omapdrm drm_kms_helper cfbfillrect snd_soc_simple_card syscopyarea cfbimgblt snd_soc_simple_card_utils sysfillrect sysimgblt fb_sys_fops snd_soc_omap_twl4030 cfbcopyarea encoder_opa362 drm twl4030_madc_hwmon wwan_on_off snd_soc_gtm601 pwm_omap_dmtimer generic_adc_battery connector_analog_tv pwm_bl extcon_gpio omap3_isp wlcore_sdio videobuf2_dma_contig videobuf2_memops w1_bq27000 videobuf2_v4l2 videobuf2_core omap_hdq snd_soc_omap_mcbsp ov9650 snd_soc_omap bmp280_i2c bmg160_i2c v4l2_common snd_pcm_dmaengine bmp280 bmg160_core at24 bmc150_magn_i2c nvmem_core videodev phy_twl4030_usb bmc150_accel_i2c tsc2007
[ 1514.037384]  bmc150_magn bmc150_accel_core media leds_tca6507 bno055 industrialio_triggered_buffer kfifo_buf gpio_twl4030 musb_hdrc snd_soc_twl4030 twl4030_vibra twl4030_madc twl4030_pwrbutton twl4030_charger industrialio w2sg0004 ehci_omap omapdss [last unloaded: hso]
[ 1514.062622] CPU: 0 PID: 3433 Comm: dhcpcd Tainted: G        W       4.11.0-rc8-letux+ #1
[ 1514.071136] Hardware name: Generic OMAP36xx (Flattened Device Tree)
[ 1514.077758] task: ee748240 task.stack: ecdd6000
[ 1514.082580] PC is at hso_start_net_device+0x50/0xc0 [hso]
[ 1514.088287] LR is at hso_net_open+0x68/0x84 [hso]
[ 1514.093231] pc : [<bf79c304>]    lr : [<bf79ced8>]    psr: a00f0013
sp : ecdd7e20  ip : 00000000  fp : ffffffff
[ 1514.105316] r10: 00000000  r9 : ed0e080c  r8 : ecd8fe2c
[ 1514.110839] r7 : bf79cef4  r6 : ecd8fe00  r5 : 00000000  r4 : ed0dbd80
[ 1514.117706] r3 : 00000000  r2 : c0020c80  r1 : 00000000  r0 : ecdb7800
[ 1514.124572] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[ 1514.132110] Control: 10c5387d  Table: acdec019  DAC: 00000051
[ 1514.138153] Process dhcpcd (pid: 3433, stack limit = 0xecdd6218)
[ 1514.144470] Stack: (0xecdd7e20 to 0xecdd8000)
[ 1514.149078] 7e20: ed0dbd80 ecd8fe98 00000001 00000000 ecd8f800 ecd8fe00 ecd8fe60 00000000
[ 1514.157714] 7e40: ed0e080c bf79ced8 bf79ce70 ecd8f800 00000001 bf7a0258 ecd8f830 c068d958
[ 1514.166320] 7e60: c068d8b8 ecd8f800 00000001 00001091 00001090 c068dba4 ecd8f800 00001090
[ 1514.174926] 7e80: ecd8f940 ecd8f800 00000000 c068dc60 00000000 00000001 ed0e0800 ecd8f800
[ 1514.183563] 7ea0: 00000000 c06feaa8 c0ca39c2 beea57dc 00000020 00000000 306f7368 00000000
[ 1514.192169] 7ec0: 00000000 00000000 00001091 00000000 00000000 00000000 00000000 00008914
[ 1514.200805] 7ee0: eaa9ab60 beea57dc c0c9bfc0 eaa9ab40 00000006 00000000 00046858 c066a948
[ 1514.209411] 7f00: beea57dc eaa9ab60 ecc6b0c0 c02837b0 00000006 c0282c90 0000c000 c0283654
[ 1514.218017] 7f20: c09b0c00 c098bc31 00000001 c0c5e513 c0c5e513 00000000 c0151354 c01a20c0
[ 1514.226654] 7f40: c0c5e513 c01a3134 ecdd6000 c01a3160 ee7487f0 600f0013 00000000 ee748240
[ 1514.235260] 7f60: ee748734 00000000 ecc6b0c0 ecc6b0c0 beea57dc 00008914 00000006 00000000
[ 1514.243896] 7f80: 00046858 c02837b0 00001091 0003a1f0 00046608 0003a248 00000036 c01071e4
[ 1514.252502] 7fa0: ecdd6000 c0107040 0003a1f0 00046608 00000006 00008914 beea57dc 00001091
[ 1514.261108] 7fc0: 0003a1f0 00046608 0003a248 00000036 0003ac0c 00046608 00046610 00046858
[ 1514.269744] 7fe0: 0003a0ac beea57d4 000167eb b6f23106 400f0030 00000006 00000000 00000000
[ 1514.278411] [<bf79c304>] (hso_start_net_device [hso]) from [<bf79ced8>] (hso_net_open+0x68/0x84 [hso])
[ 1514.288238] [<bf79ced8>] (hso_net_open [hso]) from [<c068d958>] (__dev_open+0xa0/0xf4)
[ 1514.296600] [<c068d958>] (__dev_open) from [<c068dba4>] (__dev_change_flags+0x8c/0x130)
[ 1514.305023] [<c068dba4>] (__dev_change_flags) from [<c068dc60>] (dev_change_flags+0x18/0x48)
[ 1514.313934] [<c068dc60>] (dev_change_flags) from [<c06feaa8>] (devinet_ioctl+0x348/0x714)
[ 1514.322540] [<c06feaa8>] (devinet_ioctl) from [<c066a948>] (sock_ioctl+0x2b0/0x308)
[ 1514.330627] [<c066a948>] (sock_ioctl) from [<c0282c90>] (vfs_ioctl+0x20/0x34)
[ 1514.338165] [<c0282c90>] (vfs_ioctl) from [<c0283654>] (do_vfs_ioctl+0x82c/0x93c)
[ 1514.346038] [<c0283654>] (do_vfs_ioctl) from [<c02837b0>] (SyS_ioctl+0x4c/0x74)
[ 1514.353759] [<c02837b0>] (SyS_ioctl) from [<c0107040>] (ret_fast_syscall+0x0/0x1c)
[ 1514.361755] Code: e3822103 e3822080 e1822781 e5981014 (e5832030)
[ 1514.510833] ---[ end trace dfb3e53c657f34a0 ]---
Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Andrey found a way to trigger the WARN_ON_ONCE(delta < len) in
skb_try_coalesce() using syzkaller and a filter attached to a TCP
socket.

As we did recently in commit 158f323b ("net: adjust skb->truesize in
pskb_expand_head()") we can adjust skb->truesize from ___pskb_trim(),
via a call to skb_condense().

If all frags were freed, then skb->truesize can be recomputed.

This call can be done if skb is not yet owned, or destructor is
sock_edemux().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Andrey found a way to trigger the WARN_ON_ONCE(delta < len) in
skb_try_coalesce() using syzkaller and a filter attached to a TCP
socket over loopback interface.

I believe one issue with looped skbs is that tcp_trim_head() can end up
producing skb with under estimated truesize.

It hardly matters for normal conditions, since packets sent over
loopback are never truncated.

Bytes trimmed from skb->head should not change skb truesize, since
skb->head is not reallocated.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

On slave list updates, the bonding driver computes its hard_header_len
as the maximum of all enslaved devices's hard_header_len.
If the slave list is empty, e.g. on last enslaved device removal,
ETH_HLEN is used.

Since the bonding header_ops are set only when the first enslaved
device is attached, the above can lead to header_ops->create()
being called with the wrong skb headroom in place.

If bond0 is configured on top of ipoib devices, with the
following commands:

ifup bond0
for slave in $BOND_SLAVES_LIST; do
	ip link set dev $slave nomaster
done
ping -c 1 <ip on bond0 subnet>

we will obtain a skb_under_panic() with a similar call trace:
	skb_push+0x3d/0x40
	push_pseudo_header+0x17/0x30 [ib_ipoib]
	ipoib_hard_header+0x4e/0x80 [ib_ipoib]
	arp_create+0x12f/0x220
	arp_send_dst.part.19+0x28/0x50
	arp_solicit+0x115/0x290
	neigh_probe+0x4d/0x70
	__neigh_event_send+0xa7/0x230
	neigh_resolve_output+0x12e/0x1c0
	ip_finish_output2+0x14b/0x390
	ip_finish_output+0x136/0x1e0
	ip_output+0x76/0xe0
	ip_local_out+0x35/0x40
	ip_send_skb+0x19/0x40
	ip_push_pending_frames+0x33/0x40
	raw_sendmsg+0x7d3/0xb50
	inet_sendmsg+0x31/0xb0
	sock_sendmsg+0x38/0x50
	SYSC_sendto+0x102/0x190
	SyS_sendto+0xe/0x10
	do_syscall_64+0x67/0x180
	entry_SYSCALL64_slow_path+0x25/0x25

This change addresses the issue avoiding updating the bonding device
hard_header_len when the slaves list become empty, forbidding to
shrink it below the value used by header_ops->create().

The bug is there since commit 54ef3137 ("[PATCH] bonding: Handle large
hard_header_len") but the panic can be triggered only since
commit fc791b63 ("IB/ipoib: move back IB LL address into the hard
header").
Reported-by: Norbert P <noe@physik.uzh.ch>
Fixes: 54ef3137 ("[PATCH] bonding: Handle large hard_header_len")
Fixes: fc791b63 ("IB/ipoib: move back IB LL address into the hard header")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Upper layer GRO handlers can not handle IP fragments, so
exit GRO processing in this case.

This fixes ESP GRO because the packet must be reassembled
before we can decapsulate, otherwise we get authentication
failures.

It also aligns IPv4 to IPv6 where packets with fragmentation
headers are not passed to upper layer GRO handlers.

Fixes: 7785bba2 ("esp: Add a software GRO codepath")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Tony Lindgren reports a kernel oops that resulted from my compile-time
fix on the default config. This shows two problems:

a) configurations that did not already enable PTP_1588_CLOCK will
   now miss the cpts driver

b) when cpts support is disabled, the driver crashes. This is a
   preexisting problem that we did not notice before my patch.

While the second problem is still being investigated, this modifies
the dependencies again, getting us back to the original state, with
another 'select NET_PTP_CLASSIFY' added in to avoid the original
link error we got, and the 'depends on POSIX_TIMERS' to hide
the CPTS support when turning it on would be useless.

Cc: stable@vger.kernel.org # 4.11 needs this
Fixes: 07fef362 ("cpsw/netcp: cpts depends on posix_timers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Commit c49c0976 ("ipmi: Don't call receive handler in the
panic context") means that the panic_recv_free is not called during a
panic and the atomic count does not drop to 0.

Fix this by only expecting one decrement of the atomic variable
which comes from panic_smi_free.
Signed-off-by: Robert Lippert <rlippert@google.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>

Steffen Klassert says:

====================
pull request (net): ipsec 2017-04-28

1) Do garbage collecting after a policy flush to remove old
   bundles immediately. From Xin Long.

2) Fix GRO if netfilter is not defined.
   From Sabrina Dubroca.

Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

cgroup_get() expected to be called only on live cgroups and triggers
warning on a dead cgroup; however, cgroup_sk_alloc() may be called
while cloning a socket which is left in an empty and removed cgroup
and thus may legitimately duplicate its reference on a dead cgroup.
This currently triggers the following warning spuriously.

 WARNING: CPU: 14 PID: 0 at kernel/cgroup.c:490 cgroup_get+0x55/0x60
 ...
  [<ffffffff8107e123>] __warn+0xd3/0xf0
  [<ffffffff8107e20e>] warn_slowpath_null+0x1e/0x20
  [<ffffffff810ff465>] cgroup_get+0x55/0x60
  [<ffffffff81106061>] cgroup_sk_alloc+0x51/0xe0
  [<ffffffff81761beb>] sk_clone_lock+0x2db/0x390
  [<ffffffff817cce06>] inet_csk_clone_lock+0x16/0xc0
  [<ffffffff817e8173>] tcp_create_openreq_child+0x23/0x4b0
  [<ffffffff818601a1>] tcp_v6_syn_recv_sock+0x91/0x670
  [<ffffffff817e8b16>] tcp_check_req+0x3a6/0x4e0
  [<ffffffff81861ba3>] tcp_v6_rcv+0x693/0xa00
  [<ffffffff81837429>] ip6_input_finish+0x59/0x3e0
  [<ffffffff81837cb2>] ip6_input+0x32/0xb0
  [<ffffffff81837387>] ip6_rcv_finish+0x57/0xa0
  [<ffffffff81837ac8>] ipv6_rcv+0x318/0x4d0
  [<ffffffff817778c7>] __netif_receive_skb_core+0x2d7/0x9a0
  [<ffffffff81777fa6>] __netif_receive_skb+0x16/0x70
  [<ffffffff81778023>] netif_receive_skb_internal+0x23/0x80
  [<ffffffff817787d8>] napi_gro_frags+0x208/0x270
  [<ffffffff8168a9ec>] mlx4_en_process_rx_cq+0x74c/0xf40
  [<ffffffff8168b270>] mlx4_en_poll_rx_cq+0x30/0x90
  [<ffffffff81778b30>] net_rx_action+0x210/0x350
  [<ffffffff8188c426>] __do_softirq+0x106/0x2c7
  [<ffffffff81082bad>] irq_exit+0x9d/0xa0 [<ffffffff8188c0e4>] do_IRQ+0x54/0xd0
  [<ffffffff8188a63f>] common_interrupt+0x7f/0x7f <EOI>
  [<ffffffff8173d7e7>] cpuidle_enter+0x17/0x20
  [<ffffffff810bdfd9>] cpu_startup_entry+0x2a9/0x2f0
  [<ffffffff8103edd1>] start_secondary+0xf1/0x100

This patch renames the existing cgroup_get() with the dead cgroup
warning to cgroup_get_live() after cgroup_kn_lock_live() and
introduces the new cgroup_get() which doesn't check whether the cgroup
is live or dead.

All existing cgroup_get() users except for cgroup_sk_alloc() are
converted to use cgroup_get_live().

Fixes: d979a39d ("cgroup: duplicate cgroup reference when cloning sockets")
Cc: stable@vger.kernel.org # v4.5+
Cc: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: Chris Mason <clm@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

Pull input fix from Dmitry Torokhov:
 "Yet another quirk to i8042 to get touchpad recognized on some laptops"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: i8042 - add Clevo P650RS to the i8042 reset list

When the base driver is enabled but all SoC specific drivers are turned
off, we now get a build error after code was added to always refer to the
clk gates:

drivers/clk/built-in.o: In function `ccu_pll_notifier_cb':
:(.text+0x154f8): undefined reference to `ccu_gate_helper_disable'
:(.text+0x15504): undefined reference to `ccu_gate_helper_enable'

This changes the Kconfig to always require the gate code to be built-in
when CONFIG_SUNXI_CCU is set.

Fixes: 02ae2bc6 ("clk: sunxi-ng: Add clk notifier to gate then ungate PLL clocks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

Pull btrfs fix from Chris Mason:
 "We have one more fix for btrfs.

  This gets rid of a new WARN_ON from rc1 that ended up making more
  noise than we really want. The larger fix for the underflow got
  delayed a bit and it's better for now to put it under
  CONFIG_BTRFS_DEBUG"

* 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: qgroup: move noisy underflow warning to debugging build

Parthasarathy Bhuvaragan says:

====================
tipc: fix hanging socket connections

This patch series contains fixes for the socket layer to
prevent hanging / stale connections.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

When a socket is shutting down, we notify the peer node about the
connection termination by reusing an incoming message if possible.
If the last received message was a connection acknowledgment
message, we reverse this message and set the error code to
TIPC_ERR_NO_PORT and send it to peer.

In tipc_sk_proto_rcv(), we never check for message errors while
processing the connection acknowledgment or probe messages. Thus
this message performs the usual flow control accounting and leaves
the session hanging.

In this commit, we terminate the connection when we receive such
error messages.
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Until now, the checks for sockets in CONNECTING state was based on
the assumption that the incoming message was always from the
peer's accepted data socket.

However an application using a non-blocking socket sends an implicit
connect, this socket which is in CONNECTING state can receive error
messages from the peer's listening socket. As we discard these
messages, the application socket hangs as there due to inactivity.
In addition to this, there are other places where we process errors
but do not notify the user.

In this commit, we process such incoming error messages and notify
our users about them using sk_state_change().
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>