commit 6415b38b ("x86/stacktrace: Enable HAVE_RELIABLE_STACKTRACE
for the ORC unwinder") added the ORC unwinder as a "reliable" unwinder.
Update the help text to reflect that change: the frame pointer unwinder
is no longer the only one that can provide HAVE_RELIABLE_STACKTRACE.

Link: http://lkml.kernel.org/r/20191107032958.14034-1-joe.lawrence@redhat.com
To: linux-kernel@vger.kernel.org
To: live-patching@vger.kernel.org
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>

Four selftests for the new API.

Link: http://lkml.kernel.org/r/20191030154313.13263-6-pmladek@suse.com
To: Jiri Kosina <jikos@kernel.org>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Nicolai Stange <nstange@suse.de>
Cc: live-patching@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>

Documentation explaining the motivation, capabilities, and usage
of the new API for tracking system state changes.

Link: http://lkml.kernel.org/r/20191030154313.13263-5-pmladek@suse.com
To: Jiri Kosina <jikos@kernel.org>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Nicolai Stange <nstange@suse.de>
Cc: live-patching@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>

The atomic replace runs pre/post (un)install callbacks only from the new
livepatch. There are several reasons for this:

  + Simplicity: clear ordering of operations, no interactions between
	old and new callbacks.

  + Reliability: only new livepatch knows what changes can already be made
	by older livepatches and how to take over the state.

  + Testing: the atomic replace can be properly tested only when a newer
	livepatch is available. It might be too late to fix unwanted effect
	of callbacks from older	livepatches.

It might happen that an older change is not enough and the same system
state has to be modified another way. Different changes need to get
distinguished by a version number added to struct klp_state.

The version can also be used to prevent loading incompatible livepatches.
The check is done when the livepatch is enabled. The rules are:

  + Any completely new system state modification is allowed.

  + System state modifications with the same or higher version are allowed
    for already modified system states.

  + Cumulative livepatches must handle all system state modifications from
    already installed livepatches.

  + Non-cumulative livepatches are allowed to touch already modified
    system states.

Link: http://lkml.kernel.org/r/20191030154313.13263-4-pmladek@suse.com
To: Jiri Kosina <jikos@kernel.org>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Nicolai Stange <nstange@suse.de>
Cc: live-patching@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>

This is another step how to help maintaining more livepatches.

One big help was the atomic replace and cumulative livepatches. These
livepatches replace the already installed ones. Therefore it should
be enough when each cumulative livepatch is consistent.

The problems might come with shadow variables and callbacks. They might
change the system behavior or state so that it is no longer safe to
go back and use an older livepatch or the original kernel code. Also,
a new livepatch must be able to detect changes which were made by
the already installed livepatches.

This is where the livepatch system state tracking gets useful. It
allows to:

  - find whether a system state has already been modified by
    previous livepatches

  - store data needed to manipulate and restore the system state

The information about the manipulated system states is stored in an
array of struct klp_state. It can be searched by two new functions
klp_get_state() and klp_get_prev_state().

The dependencies are going to be solved by a version field added later.
The only important information is that it will be allowed to modify
the same state by more non-cumulative livepatches. It is similar
to allowing to modify the same function several times. The livepatch
author is responsible for preventing incompatible changes.

Link: http://lkml.kernel.org/r/20191030154313.13263-3-pmladek@suse.com
To: Jiri Kosina <jikos@kernel.org>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Nicolai Stange <nstange@suse.de>
Cc: live-patching@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>

Pre/post (un)patch callbacks might manipulate the system state. Cumulative
livepatches might need to take over the changes made by the replaced
ones. For this they might need to access some data stored or referenced
by the old livepatches.

Therefore the replaced livepatches have to stay around until post_patch()
callback is called. It is achieved by calling the free functions later.
It is the same location where disabled livepatches have already been
freed.

Link: http://lkml.kernel.org/r/20191030154313.13263-2-pmladek@suse.com
To: Jiri Kosina <jikos@kernel.org>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Nicolai Stange <nstange@suse.de>
Cc: live-patching@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>

Commit 852c8cbf ("selftests/kselftest/runner.sh: Add 45 second
timeout per test") introduced a timeout per test. Livepatch tests could
run longer than 45 seconds, especially on slower machines. They do not
hang and they detect if something goes awry with internal accounting.

Better than looking for an arbitrary value, just disable the timeout for
livepatch selftests.
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

Pull livepatching fix from Jiri Kosina:
 "Error handling fix in livepatching module notifier, from Miroslav
  Benes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
  livepatch: Nullify obj->mod in klp_module_coming()'s error path

Pull HID updates from Jiri Kosina:

 - syzbot memory corruption fixes for hidraw, Prodikeys, Logitech and
   Sony drivers from Alan Stern and Roderick Colenbrander

 - stuck 'fn' key fix for hid-apple from Joao Moreno

 - proper propagation of EPOLLOUT from hiddev and hidraw, from Fabian
   Henneke

 - fixes for handling power management for intel-ish devices with NO_D3
   flag set, from Zhang Lixu

 - extension of supported usage range for customer page, as some
   Logitech devices are actually making use of it. From Olivier Gay.

 - hid-multitouch is no longer filtering mice node creation, from
   Benjamin Tissoires

 - MobileStudio Pro 13 support, from Ping Cheng

 - a few other device ID additions and assorted smaller fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (27 commits)
  HID: core: fix dmesg flooding if report field larger than 32bit
  HID: core: Add printk_once variants to hid_warn() etc
  HID: core: reformat and reduce hid_printk macros
  HID: prodikeys: Fix general protection fault during probe
  HID: wacom: add new MobileStudio Pro 13 support
  HID: sony: Fix memory corruption issue on cleanup.
  HID: i2c-hid: modify quirks for weida's devices
  HID: apple: Fix stuck function keys when using FN
  HID: sb0540: add support for Creative SB0540 IR receivers
  HID: Add quirk for HP X500 PIXART OEM mouse
  HID: logitech-dj: Fix crash when initial logi_dj_recv_query_paired_devices fails
  hid-logitech-dj: add the new Lightspeed receiver
  HID: logitech-dj: add support of the G700(s) receiver
  HID: multitouch: add support for the Smart Tech panel
  HID: multitouch: do not filter mice nodes
  HID: do not call hid_set_drvdata(hdev, NULL) in drivers
  HID: wacom: do not call hid_set_drvdata(hdev, NULL)
  HID: logitech: Fix general protection fault caused by Logitech driver
  HID: hidraw: Fix invalid read in hidraw_ioctl
  HID: wacom: support named keys on older devices
  ...

Pull SafeSetID fix from Micah Morton:
 "Jann Horn sent some patches to fix some bugs in SafeSetID for 5.3.
  After he had done his testing there were a couple small code tweaks
  that went in and caused this bug.

  From what I can see SafeSetID is broken in 5.3 and crashes the kernel
  every time during initialization if you try to use it. I came across
  this bug when backporting Jann's changes for 5.3 to older kernels
  (4.14 and 4.19). I've tested on a Chrome OS device with those kernels
  and verified that this change fixes things.

  It doesn't seem super useful to have this bake in linux-next, since it
  is completely broken in 5.3 and nobody noticed"

* tag 'safesetid-bugfix-5.4' of git://github.com/micah-morton/linux:
  LSM: SafeSetID: Stop releasing uninitialized ruleset

Pull selinux updates from Paul Moore:

 - Add LSM hooks, and SELinux access control hooks, for dnotify,
   fanotify, and inotify watches. This has been discussed with both the
   LSM and fs/notify folks and everybody is good with these new hooks.

 - The LSM stacking changes missed a few calls to current_security() in
   the SELinux code; we fix those and remove current_security() for
   good.

 - Improve our network object labeling cache so that we always return
   the object's label, even when under memory pressure. Previously we
   would return an error if we couldn't allocate a new cache entry, now
   we always return the label even if we can't create a new cache entry
   for it.

 - Convert the sidtab atomic_t counter to a normal u32 with
   READ/WRITE_ONCE() and memory barrier protection.

 - A few patches to policydb.c to clean things up (remove forward
   declarations, long lines, bad variable names, etc)

* tag 'selinux-pr-20190917' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  lsm: remove current_security()
  selinux: fix residual uses of current_security() for the SELinux blob
  selinux: avoid atomic_t usage in sidtab
  fanotify, inotify, dnotify, security: add security hook for fs notifications
  selinux: always return a secid from the network caches if we find one
  selinux: policydb - rename type_val_to_struct_array
  selinux: policydb - fix some checkpatch.pl warnings
  selinux: shuffle around policydb.c to get rid of forward declarations

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

   - potential boot hang in hwrng

   - missing switch/break in talitos

   - bugs and warnings in hisilicon

   - build warning in inside-secure"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: hisilicon - avoid unused function warning
  hwrng: core - don't wait on add_early_randomness()
  crypto: hisilicon - Fix return value check in hisi_zip_acompress()
  crypto: hisilicon - Matching the dma address for dma_pool_free()
  crypto: hisilicon - Fix double free in sec_free_hw_sgl()
  crypto: inside-secure - Fix unused variable warning when CONFIG_PCI=n
  crypto: talitos - fix missing break in switch statement

- MobileStudio Pro 13 support, from Ping Cheng

- a few other assorted fixes
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

- support for Creative SB0540 IR receivers, from Bastien Nocera
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

- support for the Smart Tech panel, from Benjamin Tissoires

- hid-multitouch is no longer filtering mice node creation,
  from Benjamin Tissoires
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

- extension of supported usage range for customer page, as some Logitech
  devices are actually making use of it. From Olivier Gay.

- support for Lightspeed and G700(s) receivers from Filipe Laíns and
  Benjamin Tissoires
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

- fixes for handling power management for intel-ish devices with NO_D3 flag
  set, from Zhang Lixu
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

- proper propagation of EPOLLOUT from hiddev and hidraw, from
  Fabian Henneke
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

- fixes for formatting / ratelimiting kernel log by HID core, from
  Joshua Clayton
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

- cleanup of ->drvdata handling between HID core and drivers, from
  Benjamin Tissoires
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

- stuck 'fn' key fix for hid-apple from Joao Moreno
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

- syzbot memory corruption fixes for hidraw, Prodikeys, Logitech and Sony
  drivers from Alan Stern and Roderick Colenbrander
- error handling fix for Logitech unifying receivers from Hans de Goede
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

Pull power supply and reset updates from Sebastian Reichel:
 "Core:
   - Ensure HWMON devices are registered with valid names
   - Fix device wakeup code

  Drivers:
   - bq25890_charger: Add BQ25895 support
   - axp288_fuel_gauge: Add Minix Neo Z83-4 to blacklist
   - sc27xx: improve battery calibration
   - misc small fixes all over drivers"

* tag 'for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (24 commits)
  power: supply: cpcap-charger: Enable vbus boost voltage
  power: supply: sc27xx: Add POWER_SUPPLY_PROP_CALIBRATE attribute
  power: supply: sc27xx: Optimize the battery capacity calibration
  power: supply: sc27xx: Make sure the alarm capacity is larger than 0
  power: supply: sc27xx: Fix the the accuracy issue of coulomb calculation
  power: supply: sc27xx: Fix conditon to enable the FGU interrupt
  power: supply: sc27xx: Add POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN attribute
  power: supply: max77650: add MODULE_ALIAS()
  power: supply: isp1704: remove redundant assignment to variable ret
  power: supply: bq25890_charger: Add the BQ25895 part
  power: supply: sc27xx: Replace devm_add_action() followed by failure action with devm_add_action_or_reset()
  power: supply: sc27xx: Introduce local variable 'struct device *dev'
  power: reset: reboot-mode: Fix author email format
  power: supply: ab8500: remove set but not used variables 'vbup33_vrtcn' and 'bup_vch_range'
  power: supply: max17042_battery: Fix a typo in function names
  power: reset: gpio-restart: Fix typo when gpio reset is not found
  power: supply: Init device wakeup after device_add()
  power: supply: ab8500_charger: Mark expected switch fall-through
  power: supply: sbs-battery: only return health when battery present
  MAINTAINERS: N900: Remove isp1704_charger.h record
  ...

Pull HSI updates from Sebastian Reichel:
 "Misc cleanups"

* tag 'hsi-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
  HSI: Remove dev_err() usage after platform_get_irq()
  HSI: ssi_protocol: Mark expected switch fall-throughs

Commit feb4eb06 ("firmware: bcm47xx_nvram: Correct size_t printf
format") was wrong, and changed a printout of 'header.len' - which is an
u32 type - to use '%zu'.

It apparently did pattern matching on the other case, where it printed
out 'nvram_len', which is indeed of type 'size_t'.

Rather than undoing the change, this just makes it use the variable that
the change seemed to expect to be used.

Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

It's an unusual configuration, and was apparently never tested, and not
caught in linux-next because of a combination of travels and it making
it into the tree too late.

The fix is to simply move the #define to outside the CONFIG_MODULE
section, since MODULE_INFO() will do the right thing.

Cc: Martijn Coenen <maco@android.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Matthias Maennich <maennich@google.com>
Cc: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull RTC updates from Alexandre Belloni:
 "Two new drivers and the new pcf2127 feature make the bulk of the
  additions. The rest are the usual fixes and new features.

  Subsystem:
   - add debug message when registration fails

  New drivers:
   - Amlogic Virtual Wake
   - Freescale FlexTimer Module alarm

  Drivers:
   - remove superfluous error messages
   - convert to i2c_new_dummy_device and devm_i2c_new_dummy_device
   - Remove dev_err() usage after platform_get_irq()
   - Set RTC range for: pcf2123, pcf8563, snvs.
   - pcf2127: tamper detection and watchdog support
   - pcf85363: fix regmap issue
   - sun6i: H6 support
   - remove w90x900/nuc900 driver"

* tag 'rtc-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (51 commits)
  rtc: meson: mark PM functions as __maybe_unused
  rtc: sc27xx: Remove clearing SPRD_RTC_POWEROFF_ALM_FLAG flag
  dt-bindings: rtc: ds1307: add rx8130 compatible
  rtc: sun6i: Allow using as wakeup source from suspend
  rtc: pcf8563: let the core handle range offsetting
  rtc: pcf8563: remove useless indirection
  rtc: pcf8563: convert to devm_rtc_allocate_device
  rtc: pcf8563: add Microcrystal RV8564 compatible
  rtc: pcf8563: add Epson RTC8564 compatible
  rtc: s35390a: convert to devm_i2c_new_dummy_device()
  rtc: max77686: convert to devm_i2c_new_dummy_device()
  rtc: pcf85363/pcf85263: fix regmap error in set_time
  rtc: snvs: switch to rtc_time64_to_tm/rtc_tm_to_time64
  rtc: snvs: set range
  rtc: snvs: fix possible race condition
  rtc: pcf2127: bugfix: watchdog build dependency
  rtc: pcf2127: add tamper detection support
  rtc: pcf2127: add watchdog feature support
  rtc: pcf2127: bugfix: read rtc disables watchdog
  rtc: pcf2127: cleanup register and bit defines
  ...

Pull rpmsg updates from Bjorn Andersson:
 "This contains updates to make the rpmsg sample driver more useful,
  fixes the naming of GLINK devices to avoid naming collisions and a few
  minor bug fixes. It also updates MAINTAINERS to reflect the move to
  kernel.org"

* tag 'rpmsg-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
  rpmsg: glink-smem: Name the edge based on parent remoteproc
  rpmsg: glink: Use struct_size() helper
  rpmsg: virtio_rpmsg_bus: replace "%p" with "%pK"
  MAINTAINERS: rpmsg: fix git tree location
  rpmsg: core: fix comments
  samples/rpmsg: Introduce a module parameter for message count
  samples/rpmsg: Replace print_hex_dump() with print_hex_dump_debug()

Pull remoteproc updates from Bjorn Andersson:
 "This exposes the remoteproc's name in sysfs, allows stm32 to enter
  platform standby and provides bug fixes for stm32 and Qualcomm's modem
  remoteproc drivers. Finally it updates MAINTAINERS to reflect the move
  to kernel.org"

* tag 'rproc-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
  MAINTAINERS: remoteproc: update git tree location
  remoteproc: Remove dev_err() usage after platform_get_irq()
  remoteproc: stm32: manage the get_irq probe defer case
  remoteproc: stm32: clear MCU PDDS at firmware start
  remoteproc: qcom: q6v5-mss: fixup q6v5_pds_enable error handling
  remoteproc: Add a sysfs interface for name
  remoteproc: qcom: Move glink_ssr notification after stop

Pull soundwire updates from Vinod Koul:
 "This includes DT support thanks to Srini and more work done by Intel
  (Pierre) on improving cadence and intel support.

  Summary:

   - Add DT bindings and DT support in core

   - Add debugfs support for soundwire properties

   - Improvements on streaming handling to core

   - Improved handling of Cadence module

   - More updates and improvements to Intel driver"

* tag 'soundwire-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (30 commits)
  soundwire: stream: make stream name a const pointer
  soundwire: Add compute_params callback
  soundwire: core: add device tree support for slave devices
  dt-bindings: soundwire: add slave bindings
  soundwire: bus: set initial value to port_status
  soundwire: intel: handle disabled links
  soundwire: intel: add debugfs register dump
  soundwire: cadence_master: add debugfs register dump
  soundwire: add debugfs support
  soundwire: intel: remove unused variables
  soundwire: intel: move shutdown() callback and don't export symbol
  soundwire: cadence_master: add kernel parameter to override interrupt mask
  soundwire: intel_init: add kernel module parameter to filter out links
  soundwire: cadence_master: fix divider setting in clock register
  soundwire: cadence_master: make use of mclk_freq property
  soundwire: intel: read mclk_freq property from firmware
  soundwire: add new mclk_freq field for properties
  soundwire: stream: remove unnecessary variable initializations
  soundwire: stream: fix disable sequence
  soundwire: include mod_devicetable.h to avoid compiling warnings
  ...

Pull modules updates from Jessica Yu:
 "The main bulk of this pull request introduces a new exported symbol
  namespaces feature. The number of exported symbols is increasingly
  growing with each release (we're at about 31k exports as of 5.3-rc7)
  and we currently have no way of visualizing how these symbols are
  "clustered" or making sense of this huge export surface.

  Namespacing exported symbols allows kernel developers to more
  explicitly partition and categorize exported symbols, as well as more
  easily limiting the availability of namespaced symbols to other parts
  of the kernel. For starters, we have introduced the USB_STORAGE
  namespace to demonstrate the API's usage. I have briefly summarized
  the feature and its main motivations in the tag below.

  Summary:

   - Introduce exported symbol namespaces.

     This new feature allows subsystem maintainers to partition and
     categorize their exported symbols into explicit namespaces. Module
     authors are now required to import the namespaces they need.

     Some of the main motivations of this feature include: allowing
     kernel developers to better manage the export surface, allow
     subsystem maintainers to explicitly state that usage of some
     exported symbols should only be limited to certain users (think:
     inter-module or inter-driver symbols, debugging symbols, etc), as
     well as more easily limiting the availability of namespaced symbols
     to other parts of the kernel.

     With the module import requirement, it is also easier to spot the
     misuse of exported symbols during patch review.

     Two new macros are introduced: EXPORT_SYMBOL_NS() and
     EXPORT_SYMBOL_NS_GPL(). The API is thoroughly documented in
     Documentation/kbuild/namespaces.rst.

   - Some small code and kbuild cleanups here and there"

* tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  module: Remove leftover '#undef' from export header
  module: remove unneeded casts in cmp_name()
  module: move CONFIG_UNUSED_SYMBOLS to the sub-menu of MODULES
  module: remove redundant 'depends on MODULES'
  module: Fix link failure due to invalid relocation on namespace offset
  usb-storage: export symbols in USB_STORAGE namespace
  usb-storage: remove single-use define for debugging
  docs: Add documentation for Symbol Namespaces
  scripts: Coccinelle script for namespace dependencies.
  modpost: add support for generating namespace dependencies
  export: allow definition default namespaces in Makefiles or sources
  module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
  modpost: add support for symbol namespaces
  module: add support for symbol namespaces.
  export: explicitly align struct kernel_symbol
  module: support reading multiple values per modinfo tag

Pull ARM updates from Russell King:

 - fix various clang build and cppcheck issues

 - switch ARM to use new common outgoing-CPU-notification code

 - add some additional explanation about the boot code

 - kbuild "make clean" fixes

 - get rid of another "(____ptrval____)", this time for the VDSO code

 - avoid treating cache maintenance faults as a write

 - add a frame pointer unwinder implementation for clang

 - add EDAC support for Aurora L2 cache

 - improve robustness of adjust_lowmem_bounds() finding the bounds of
   lowmem.

 - add reset control for AMBA primecell devices

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (24 commits)
  ARM: 8906/1: drivers/amba: add reset control to amba bus probe
  ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 or newer
  ARM: 8904/1: skip nomap memblocks while finding the lowmem/highmem boundary
  ARM: 8903/1: ensure that usable memory in bank 0 starts from a PMD-aligned address
  ARM: 8891/1: EDAC: armada_xp: Add support for more SoCs
  ARM: 8888/1: EDAC: Add driver for the Marvell Armada XP SDRAM and L2 cache ECC
  ARM: 8892/1: EDAC: Add missing debugfs_create_x32 wrapper
  ARM: 8890/1: l2x0: add marvell,ecc-enable property for aurora
  ARM: 8889/1: dt-bindings: document marvell,ecc-enable binding
  ARM: 8886/1: l2x0: support parity-enable/disable on aurora
  ARM: 8885/1: aurora-l2: add defines for parity and ECC registers
  ARM: 8887/1: aurora-l2: add prefix to MAX_RANGE_SIZE
  ARM: 8902/1: l2c: move cache-aurora-l2.h to asm/hardware
  ARM: 8900/1: UNWINDER_FRAME_POINTER implementation for Clang
  ARM: 8898/1: mm: Don't treat faults reported from cache maintenance as writes
  ARM: 8896/1: VDSO: Don't leak kernel addresses
  ARM: 8895/1: visit mach-* and plat-* directories when cleaning
  ARM: 8894/1: boot: Replace open-coded nop with macro
  ARM: 8893/1: boot: Explain the 8 nops
  ARM: 8876/1: fix O= building with CONFIG_FPE_FASTFPE
  ...

Pull MIPS updates from Paul Burton:
 "Main MIPS changes:

   - boot_mem_map is removed, providing a nice cleanup made possible by
     the recent removal of bootmem.

   - Some fixes to atomics, in general providing compiler barriers for
     smp_mb__{before,after}_atomic plus fixes specific to Loongson CPUs
     or MIPS32 systems using cmpxchg64().

   - Conversion to the new generic VDSO infrastructure courtesy of
     Vincenzo Frascino.

   - Removal of undefined behavior in set_io_port_base(), fixing the
     behavior of some MIPS kernel configurations when built with recent
     clang versions.

   - Initial MIPS32 huge page support, functional on at least Ingenic
     SoCs.

   - pte_special() is now supported for some configurations, allowing
     among other things generic fast GUP to be used.

   - Miscellaneous fixes & cleanups.

  And platform specific changes:

   - Major improvements to Ingenic SoC support from Paul Cercueil,
     mostly enabled by the inclusion of the new TCU (timer-counter unit)
     drivers he's spent a very patient year or so working on. Plus some
     fixes for X1000 SoCs from Zhou Yanjie.

   - Netgear R6200 v1 systems are now supported by the bcm47xx platform.

   - DT updates for BMIPS, Lantiq & Microsemi Ocelot systems"

* tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (89 commits)
  MIPS: Detect bad _PFN_SHIFT values
  MIPS: Disable pte_special() for MIPS32 with RiXi
  MIPS: ralink: deactivate PCI support for SOC_MT7621
  mips: compat: vdso: Use legacy syscalls as fallback
  MIPS: Drop Loongson _CACHE_* definitions
  MIPS: tlbex: Remove cpu_has_local_ebase
  MIPS: tlbex: Simplify r3k check
  MIPS: Select R3k-style TLB in Kconfig
  MIPS: PCI: refactor ioc3 special handling
  mips: remove ioremap_cachable
  mips/atomic: Fix smp_mb__{before,after}_atomic()
  mips/atomic: Fix loongson_llsc_mb() wreckage
  mips/atomic: Fix cmpxchg64 barriers
  MIPS: Octeon: remove duplicated include from dma-octeon.c
  firmware: bcm47xx_nvram: Allow COMPILE_TEST
  firmware: bcm47xx_nvram: Correct size_t printf format
  MIPS: Treat Loongson Extensions as ASEs
  MIPS: Remove dev_err() usage after platform_get_irq()
  MIPS: dts: mscc: describe the PTP ready interrupt
  MIPS: dts: mscc: describe the PTP register range
  ...

Pull gfs2 updates from Andreas Gruenbacher:

 - Use asynchronous glocks and timeouts to recover from deadlocks during
   rename and exchange: the lock ordering constraints the vfs uses are
   not sufficient to prevent deadlocks across multiple nodes.

 - Add support for IOMAP_ZERO and use iomap_zero_range to replace gfs2
   specific code.

 - Various other minor fixes and cleanups.

* tag 'gfs2-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: clear buf_in_tr when ending a transaction in sweep_bh_for_rgrps
  gfs2: Improve mmap write vs. truncate consistency
  gfs2: Use async glocks for rename
  gfs2: create function gfs2_glock_update_hold_time
  gfs2: separate holder for rgrps in gfs2_rename
  gfs2: Delete an unnecessary check before brelse()
  gfs2: Minor PAGE_SIZE arithmetic cleanups
  gfs2: Fix recovery slot bumping
  gfs2: Fix possible fs name overflows
  gfs2: untangle the logic in gfs2_drevalidate
  gfs2: Always mark inode dirty in fallocate
  gfs2: Minor gfs2_alloc_inode cleanup
  gfs2: implement gfs2_block_zero_range using iomap_zero_range
  gfs2: Add support for IOMAP_ZERO
  gfs2: gfs2_iomap_begin cleanup

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we introduced casefolding support in f2fs, and fixed
  various bugs in individual features such as IO alignment,
  checkpoint=disable, quota, and swapfile.

  Enhancement:
   - support casefolding w/ enhancement in ext4
   - support fiemap for directory
   - support FS_IO_GET|SET_FSLABEL

  Bug fix:
   - fix IO stuck during checkpoint=disable
   - avoid infinite GC loop
   - fix panic/overflow related to IO alignment feature
   - fix livelock in swap file
   - fix discard command leak
   - disallow dio for atomic_write"

* tag 'f2fs-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (51 commits)
  f2fs: add a condition to detect overflow in f2fs_ioc_gc_range()
  f2fs: fix to add missing F2FS_IO_ALIGNED() condition
  f2fs: fix to fallback to buffered IO in IO aligned mode
  f2fs: fix to handle error path correctly in f2fs_map_blocks
  f2fs: fix extent corrupotion during directIO in LFS mode
  f2fs: check all the data segments against all node ones
  f2fs: Add a small clarification to CONFIG_FS_F2FS_FS_SECURITY
  f2fs: fix inode rwsem regression
  f2fs: fix to avoid accessing uninitialized field of inode page in is_alive()
  f2fs: avoid infinite GC loop due to stale atomic files
  f2fs: Fix indefinite loop in f2fs_gc()
  f2fs: convert inline_data in prior to i_size_write
  f2fs: fix error path of f2fs_convert_inline_page()
  f2fs: add missing documents of reserve_root/resuid/resgid
  f2fs: fix flushing node pages when checkpoint is disabled
  f2fs: enhance f2fs_is_checkpoint_ready()'s readability
  f2fs: clean up __bio_alloc()'s parameter
  f2fs: fix wrong error injection path in inc_valid_block_count()
  f2fs: fix to writeout dirty inode during node flush
  f2fs: optimize case-insensitive lookups
  ...

Pull ext2, quota, udf fixes and cleanups from Jan Kara:

 - two small quota fixes (in grace time handling and possible missed
   accounting of preallocated blocks beyond EOF).

 - some ext2 cleanups

 - udf fixes for better compatibility with Windows 10 generated media
   (named streams, write-protection using domain-identifier, placement
   of volume recognition sequence)

 - some udf cleanups

* tag 'for_v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  quota: fix wrong condition in is_quota_modification()
  fs-udf: Delete an unnecessary check before brelse()
  ext2: Delete an unnecessary check before brelse()
  udf: Drop forward function declarations
  udf: Verify domain identifier fields
  udf: augment UDF permissions on new inodes
  udf: Use dynamic debug infrastructure
  udf: reduce leakage of blocks related to named streams
  udf: prevent allocation beyond UDF partition
  quota: fix condition for resetting time limit in do_set_dqblk()
  ext2: code cleanup for ext2_free_blocks()
  ext2: fix block range in ext2_data_block_valid()
  udf: support 2048-byte spacing of VRS descriptors on 4K media
  udf: refactor VRS descriptor identification

Pull ext4 updates from Ted Ts'o:
 "Added new ext4 debugging ioctls to allow userspace to get information
  about the state of the extent status cache.

  Dropped workaround for pre-1970 dates which were encoded incorrectly
  in pre-4.4 kernels. Since both the kernel correctly generates, and
  e2fsck detects and fixes this issue for the past four years, it'e time
  to drop the workaround. (Also, it's not like files with dates in the
  distant past were all that common in the first place.)

  A lot of miscellaneous bug fixes and cleanups, including some ext4
  Documentation fixes. Also included are two minor bug fixes in
  fs/unicode"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (21 commits)
  unicode: make array 'token' static const, makes object smaller
  unicode: Move static keyword to the front of declarations
  ext4: add missing bigalloc documentation.
  ext4: fix kernel oops caused by spurious casefold flag
  ext4: fix integer overflow when calculating commit interval
  ext4: use percpu_counters for extent_status cache hits/misses
  ext4: fix potential use after free after remounting with noblock_validity
  jbd2: add missing tracepoint for reserved handle
  ext4: fix punch hole for inline_data file systems
  ext4: rework reserved cluster accounting when invalidating pages
  ext4: documentation fixes
  ext4: treat buffers with write errors as containing valid data
  ext4: fix warning inside ext4_convert_unwritten_extents_endio
  ext4: set error return correctly when ext4_htree_store_dirent fails
  ext4: drop legacy pre-1970 encoding workaround
  ext4: add new ioctl EXT4_IOC_GET_ES_CACHE
  ext4: add a new ioctl EXT4_IOC_GETSTATE
  ext4: add a new ioctl EXT4_IOC_CLEAR_ES_CACHE
  jbd2: flush_descriptor(): Do not decrease buffer head's ref count
  ext4: remove unnecessary error check
  ...

Pull UBI, UBIFS and JFFS2 updates from Richard Weinberger:
 "UBI:
   - Be less stupid when placing a fastmap anchor
   - Try harder to get an empty PEB in case of contention
   - Make ubiblock to warn if image is not a multiple of 512

  UBIFS:
   - Various fixes in error paths

  JFFS2:
   - Various fixes in error paths"

* tag 'upstream-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  jffs2: Fix memory leak in jffs2_scan_eraseblock() error path
  jffs2: Remove jffs2_gc_fetch_page and jffs2_gc_release_page
  jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()
  ubi: block: Warn if volume size is not multiple of 512
  ubifs: Fix memory leak bug in alloc_ubifs_info() error path
  ubifs: Fix memory leak in __ubifs_node_verify_hmac error path
  ubifs: Fix memory leak in read_znode() error path
  ubi: ubi_wl_get_peb: Increase the number of attempts while getting PEB
  ubi: Don't do anchor move within fastmap area
  ubifs: Remove redundant assignment to pointer fname