Граф коммитов

50630 Коммитов

Автор SHA1 Сообщение Дата
Rob Herring 9be21f7358 docs: dt: writing-schema: Include the example schema in the doc build
The example-schema.yaml file serves as documentation, so let's include it
from writing-schema.rst.

Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20210325164713.1296407-4-robh@kernel.org
2021-03-27 12:58:04 -06:00
Rob Herring 0d45f83351 docs: dt: writing-schema: Remove spurious indentation
'allOf' and 'properties' have a leading space which causes them to be
indented in the doc output.

Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20210325164713.1296407-3-robh@kernel.org
2021-03-27 12:58:04 -06:00
Rob Herring b3e2589be3 dt-bindings: Fix reference in submitting-patches.rst to the DT ABI doc
submitting-patches.rst has a stale reference to ABI.txt. Fix this with a
proper rSt link.

Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20210325164713.1296407-2-robh@kernel.org
2021-03-27 12:58:03 -06:00
Julius Werner b368d9e7c9 dt-bindings: ddr: Add optional manufacturer and revision ID to LPDDR3
On some platforms, DDR parts are multi-sourced and the exact part number
used is not know to either kernel or firmware at build time. Firmware
can read identifying information from DDR mode registers at boot time
but needs a way to communicate this information to kernel and/or
userspace. This patch adds optional properties for this information to
the existing "jedec,lpddr3" device tree binding to be used for that
purpose.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Link: https://lore.kernel.org/r/20210324010405.1917577-1-jwerner@chromium.org
Signed-off-by: Rob Herring <robh@kernel.org>
2021-03-27 12:58:03 -06:00
Rob Herring 8657375165 dt-bindings: media: video-interfaces: Drop the example
The example in video-interfaces.yaml uses a bunch of undocumented
bindings which will cause warnings when undocumented compatible checks
are enabled. The example could be fixed to use documented bindings, but
doing so would just duplicate other examples. So let's just remove the
example.

Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-media@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20210324202253.3576798-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2021-03-26 13:51:19 -06:00
Bhaskar Chowdhury 592485bcb5 devicetree: bindings: clock: Minor typo fix in the file armada3700-tbg-clock.txt
s/provde/provide/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20210317100840.2449462-1-unixbhaskar@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-03-25 19:53:04 -06:00
Bhaskar Chowdhury 709e8c9920 dt-bindings: msm: Couple of spelling fixes
s/Subsytem/Subsystem/
s/contoller/controller/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Link: https://lore.kernel.org/r/20210320192553.29922-1-unixbhaskar@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-03-24 14:12:16 -06:00
Krzysztof Kozlowski 1b07d6e921 dt-bindings: add vendor prefix for AESOP
Add vendor prefix for AESOP Embedded Forum (http://www.aesop.or.kr).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210315124423.115039-3-krzysztof.kozlowski@canonical.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-03-24 12:31:35 -06:00
Krzysztof Kozlowski 2837b34b20 dt-bindings: add vendor prefix for YIC System Co., Ltd
Add vendor prefix for YIC System Co., Ltd (http://www.yicsystem.com).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210315124423.115039-2-krzysztof.kozlowski@canonical.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-03-24 12:31:35 -06:00
Krzysztof Kozlowski d2ea49e95a dt-bindings: add vendor prefix for Siliconfile Technologies lnc.
Add vendor prefix for Siliconfile Technologies lnc.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210315124423.115039-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-03-24 12:31:34 -06:00
Linus Walleij 2601ab5498 dt-bindings: Convert the BCM4329 bindings to YAML and extend
This converts the BCM4329 family bindings to YAML schema, and
extends and fixes the bindings like this:

- Name the bindings after the first chip (BCM4329) since
  wildcards like 43xx are nowadays frowned upon by the DT
  binding reviewers. We call this the "BCM4329 family"
- Add compatible strings for all the variants that seem to
  exist in the wild. (Derived from firmware listings.)
- Support specific-to-generic compatible strings (as already
  in use in DTS files).
- Add required reg property (SDIO function number)
- Add reset-gpios property (some systems wire this to a GPIO
  line).
- I have only listed Arend as maintainer for now, volunteers
  can be added.

Cc: Arend van Spriel <aspriel@gmail.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Chi-hsien Lin <chi-hsien.lin@infineon.com>
Cc: Wright Feng <wright.feng@infineon.com>
Cc: Chung-hsien Hsu <chung-hsien.hsu@infineon.com>
Cc: Julian Calaby <julian.calaby@gmail.com>
Cc: brcm80211-dev-list.pdl@broadcom.com
Cc: SHA-cyfmac-dev-list@infineon.com
Cc: linux-mmc@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20210315105911.138553-1-linus.walleij@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>
2021-03-24 12:31:34 -06:00
Shubhrajyoti Datta c605555052 dt-bindings: i2c: xiic: Fix a typo
Trivial fix. Correct a typo.

Fixes: f86ca41479 ("dt-bindings: i2c: xiic: Migrate i2c-xiic documentation to YAML")
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Link: https://lore.kernel.org/r/1615215963-1042-1-git-send-email-shubhrajyoti.datta@xilinx.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-03-23 15:27:52 -06:00
Rob Herring c215634829 dt-bindings: Drop type references on common properties
Users of common properties shouldn't have a type definition as the
common schemas already have one. Drop all the unnecessary type
references in the tree.

A meta-schema update to catch these is pending.

Cc: Maxime Ripard <mripard@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Cheng-Yi Chiang <cychiang@chromium.org>
Cc: Benson Leung <bleung@chromium.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Stefan Wahren <wahrenst@gmx.net>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Odelu Kukatla <okukatla@codeaurora.org>
Cc: linux-gpio@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-can@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-remoteproc@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: linux-usb@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Dmity Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Suman Anna <s-anna@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20210316194858.3527845-1-robh@kernel.org
2021-03-23 15:27:52 -06:00
Rob Herring 28ffe8bf90 dt-bindings: Clean-up undocumented compatible strings
Adding checks for undocumented compatible strings reveals a bunch of
warnings in the DT binding examples. Fix the cases which are typos, just
a mismatch between the schema and the example, or aren't documented at all.
In a couple of cases, fixing the compatible revealed some schema errors
which are fixed.

There's a bunch of others remaining after this which have bindings, but
those aren't converted to schema yet.

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux-clk@vger.kernel.org
Cc: dmaengine@vger.kernel.org
Cc: linux-i3c@lists.infradead.org
Cc: linux-iio@vger.kernel.org
Cc: linux-leds@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-serial@vger.kernel.org
Cc: linux-spi@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Alain Volmat <alain.volmat@foss.st.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20210316194918.3528417-1-robh@kernel.org
2021-03-23 15:27:51 -06:00
Rob Herring 962e62128f dt-bindings: nvmem: use base meta-schema for consumer schema
Common consumer schemas need to use the base.yaml meta-schema because
they need to define different constraints (e.g. the type) from what
users of the common schema need to define (e.g. how many entries).

Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210316195111.3531755-1-robh@kernel.org
2021-03-23 15:27:51 -06:00
Rob Herring 383f05515b dt-bindings: trivial-devices: Allow 'spi-max-frequency' property
Trivial SPI devices can also specify 'spi-max-frequency' properties, so
allow it in the trivial devices schema.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210316194939.3529018-1-robh@kernel.org
2021-03-23 15:27:51 -06:00
Rob Herring 65aa1ed5a6 dt-bindings: More cleanup of standard unit properties
Properties with standard unit suffixes already have a type and don't need
type references. Fix a few more cases which have gotten added.

Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Kevin Tsai <ktsai@capellamicro.com>
Cc: linux-iio@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Dmity Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20210316194824.3526913-1-robh@kernel.org
2021-03-23 15:27:51 -06:00
Rob Herring 3b2e006220 dt-bindings: media: Convert video-mux to DT schema
Now that we have the graph schema, convert the video-mux binding to DT
schema.

Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20210311234042.1588310-1-robh@kernel.org
2021-03-23 15:27:51 -06:00
Rob Herring c59773d204 kbuild: Enable DT undocumented compatible checks
dt-validate has an option to warn on any compatible strings which don't
match any schema. The option has recently been improved to fix false
positives, so let's enable the option. This is useful for tracking
compatibles which are undocumented or not yet converted to DT schema.
Previously, the only check of undocumented compatible strings has been
an imperfect checkpatch.pl check.

The option is enabled by default for 'dtbs_check'. This will add more
warnings, but some platforms are down to only a handful of these
warnings (good job!).

There's about 100 cases in the binding examples, so the option is
disabled until these are fixed. In the meantime, they can be checked
with:

make DT_CHECKER_FLAGS=-m dt_binding_check

Cc: Maxime Ripard <mripard@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210311233640.1581526-2-robh@kernel.org
2021-03-16 09:08:29 -06:00
Rob Herring e2b0d99879 dt-bindings: Bump dtschema version required to v2021.2.1
There's several dependencies in dtschema since v2020.8.1 we need, so
let's bump the version required to v2021.2.1. Specifically, the
graph.yaml schema and improved undocumented compatible check are needed.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210311233640.1581526-1-robh@kernel.org
2021-03-15 10:43:19 -06:00
Linus Torvalds 47454caf45 block-5.12-2021-03-05
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Merge tag 'block-5.12-2021-03-05' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - NVMe fixes:
      - more device quirks (Julian Einwag, Zoltán Böszörményi, Pascal
        Terjan)
      - fix a hwmon error return (Daniel Wagner)
      - fix the keep alive timeout initialization (Martin George)
      - ensure the model_number can't be changed on a used subsystem
        (Max Gurtovoy)

 - rsxx missing -EFAULT on copy_to_user() failure (Dan)

 - rsxx remove unused linux.h include (Tian)

 - kill unused RQF_SORTED (Jean)

 - updated outdated BFQ comments (Joseph)

 - revert work-around commit for bd_size_lock, since we removed the
   offending user in this merge window (Damien)

* tag 'block-5.12-2021-03-05' of git://git.kernel.dk/linux-block:
  nvmet: model_number must be immutable once set
  nvme-fabrics: fix kato initialization
  nvme-hwmon: Return error code when registration fails
  nvme-pci: add quirks for Lexar 256GB SSD
  nvme-pci: mark Kingston SKC2000 as not supporting the deepest power state
  nvme-pci: mark Seagate Nytro XM1440 as QUIRK_NO_NS_DESC_LIST.
  rsxx: Return -EFAULT if copy_to_user() fails
  block/bfq: update comments and default value in docs for fifo_expire
  rsxx: remove unused including <linux/version.h>
  block: Drop leftover references to RQF_SORTED
  block: revert "block: fix bd_size_lock use"
2021-03-05 12:59:37 -08:00
Linus Torvalds 6bf331d5ce Devicetree fixes for v5.12-rc:
- Another batch of graph and video-interfaces schema conversions
 
 - Drop DT header symlink for dropped C6X arch
 
 - Fix bcm2711-hdmi schema error
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Merge tag 'devicetree-fixes-for-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Another batch of graph and video-interfaces schema conversions

 - Drop DT header symlink for dropped C6X arch

 - Fix bcm2711-hdmi schema error

* tag 'devicetree-fixes-for-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: media: Use graph and video-interfaces schemas, round 2
  dts: drop dangling c6x symlink
  dt-bindings: bcm2711-hdmi: Fix broken schema
2021-03-05 12:12:28 -08:00
Linus Torvalds cee407c5cc * Doc fixes
* selftests fixes
 * Add runstate information to the new Xen support
 * Allow compiling out the Xen interface
 * 32-bit PAE without EPT bugfix
 * NULL pointer dereference bugfix
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:

 - Doc fixes

 - selftests fixes

 - Add runstate information to the new Xen support

 - Allow compiling out the Xen interface

 - 32-bit PAE without EPT bugfix

 - NULL pointer dereference bugfix

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: SVM: Clear the CR4 register on reset
  KVM: x86/xen: Add support for vCPU runstate information
  KVM: x86/xen: Fix return code when clearing vcpu_info and vcpu_time_info
  selftests: kvm: Mmap the entire vcpu mmap area
  KVM: Documentation: Fix index for KVM_CAP_PPC_DAWR1
  KVM: x86: allow compiling out the Xen hypercall interface
  KVM: xen: flush deferred static key before checking it
  KVM: x86/mmu: Set SPTE_AD_WRPROT_ONLY_MASK if and only if PML is enabled
  KVM: x86: hyper-v: Fix Hyper-V context null-ptr-deref
  KVM: x86: remove misplaced comment on active_mmu_pages
  KVM: Documentation: rectify rst markup in kvm_run->flags
  Documentation: kvm: fix messy conversion from .txt to .rst
2021-03-04 11:26:17 -08:00
David Woodhouse 30b5c851af KVM: x86/xen: Add support for vCPU runstate information
This is how Xen guests do steal time accounting. The hypervisor records
the amount of time spent in each of running/runnable/blocked/offline
states.

In the Xen accounting, a vCPU is still in state RUNSTATE_running while
in Xen for a hypercall or I/O trap, etc. Only if Xen explicitly schedules
does the state become RUNSTATE_blocked. In KVM this means that even when
the vCPU exits the kvm_run loop, the state remains RUNSTATE_running.

The VMM can explicitly set the vCPU to RUNSTATE_blocked by using the
KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT attribute, and can also use
KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST to retrospectively add a given
amount of time to the blocked state and subtract it from the running
state.

The state_entry_time corresponds to get_kvmclock_ns() at the time the
vCPU entered the current state, and the total times of all four states
should always add up to state_entry_time.

Co-developed-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20210301125309.874953-2-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-03-02 14:30:54 -05:00
Kai Huang 7d2cdad0da KVM: Documentation: Fix index for KVM_CAP_PPC_DAWR1
It should be 7.23 instead of 7.22, which has already been taken by
KVM_CAP_X86_BUS_LOCK_EXIT.

Signed-off-by: Kai Huang <kai.huang@intel.com>
Message-Id: <20210226094832.380394-1-kai.huang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-03-02 14:30:53 -05:00
Joseph Qi 4168a8d27e block/bfq: update comments and default value in docs for fifo_expire
Correct the comments since bfq_fifo_expire[0] is for async request,
while bfq_fifo_expire[1] is for sync request.
Also update docs, according the source code, the default
fifo_expire_async is 250ms, and fifo_expire_sync is 125ms.

Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-03-02 11:25:38 -07:00
Rob Herring b5a95bb188 dt-bindings: media: Use graph and video-interfaces schemas, round 2
A couple of media schemas got applied without using or incorrectly
using the video-interfaces.yaml and graph.yaml schemas. Fix them up
before we have more copy-n-paste errors.

Fixes: 41b3e23376 ("media: dt-bindings: media: Add bindings for imx334")
Fixes: d899e5f1db ("media: dt-bindings: media: imx258: add bindings for IMX258 sensor")
Fixes: 918b866edf ("media: dt-bindings: Remove old ov5647.yaml file, update ovti,ov5647.yaml")
Fixes: 22f2b47517 ("media: dt-bindings: media: i2c: Add OV8865 bindings documentation")
Fixes: 29a202fa7a ("media: dt-bindings: media: i2c: Add OV5648 bindings documentation")
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Dave Stevenson <dave.stevenson@raspberrypi.com>
Cc: Jacopo Mondi <jacopo@jmondi.org>
Cc: "Paul J. Murphy" <paul.j.murphy@intel.com>
Cc: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc: linux-media@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20210223210127.55455-1-robh@kernel.org
2021-03-01 11:30:21 -06:00
Linus Torvalds 03dc748bf1 More new code for 5.12:
- Restore a disused sysctl control knob that was inadvertently dropped
   during the merge window to avoid fstests regressions.
 - Don't speculatively release freed blocks from the busy list until
   we're actually allocating them, which fixes a rare log recovery
   regression.
 - Don't nest transactions when scanning for free space.
 - Add an idiot^Wmaintainer light to detect nested transactions. ;)
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Merge tag 'xfs-5.12-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull more xfs updates from Darrick Wong:
 "The most notable fix here prevents premature reuse of freed metadata
  blocks, and adding the ability to detect accidental nested
  transactions, which are not allowed here.

   - Restore a disused sysctl control knob that was inadvertently
     dropped during the merge window to avoid fstests regressions.

   - Don't speculatively release freed blocks from the busy list until
     we're actually allocating them, which fixes a rare log recovery
     regression.

   - Don't nest transactions when scanning for free space.

   - Add an idiot^Wmaintainer light to detect nested transactions. ;)"

* tag 'xfs-5.12-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: use current->journal_info for detecting transaction recursion
  xfs: don't nest transactions when scanning for eofblocks
  xfs: don't reuse busy extents on extent trim
  xfs: restore speculative_cow_prealloc_lifetime sysctl
2021-02-28 11:45:25 -08:00
Linus Torvalds 5ceabb6078 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:
 "Assorted stuff pile - no common topic here"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  whack-a-mole: don't open-code iminor/imajor
  9p: fix misuse of sscanf() in v9fs_stat2inode()
  audit_alloc_mark(): don't open-code ERR_CAST()
  fs/inode.c: make inode_init_always() initialize i_ino to 0
  vfs: don't unnecessarily clone write access for writable fds
2021-02-27 08:07:12 -08:00
Linus Torvalds 3fb6d0e00e A handful of late-arriving documentation fixes, nothing all that notable.
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Merge tag 'docs-5.12-2' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "A handful of late-arriving documentation fixes, nothing all that
  notable"

* tag 'docs-5.12-2' of git://git.lwn.net/linux:
  docs: proc.rst: fix indentation warning
  Documentation: cgroup-v2: fix path to example BPF program
  docs: powerpc: Fix tables in syscall64-abi.rst
  Documentation: features: refresh feature list
  Documentation: features: remove c6x references
  docs: ABI: testing: ima_policy: Fixed missing bracket
  Fix unaesthetic indentation
  scripts: kernel-doc: fix array element capture in pointer-to-func parsing
  doc: use KCFLAGS instead of EXTRA_CFLAGS to pass flags from command line
  Documentation: proc.rst: add more about the 6 fields in loadavg
2021-02-26 14:21:18 -08:00
Linus Torvalds c19798af2e cifs/smb3 fixes including improvements to mode bit conversion when using cifsacl mount option, new mount options for controlling attribute caching, improvements to crediting and reconnect, improved debugging
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Merge tag '5.12-smb3-part1' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs updates from Steve French:

 - improvements to mode bit conversion, chmod and chown when using
   cifsacl mount option

 - two new mount options for controlling attribute caching

 - improvements to crediting and reconnect, improved debugging

 - reconnect fix

 - add SMB3.1.1 dialect to default dialects for vers=3

* tag '5.12-smb3-part1' of git://git.samba.org/sfrench/cifs-2.6: (27 commits)
  cifs: update internal version number
  cifs: use discard iterator to discard unneeded network data more efficiently
  cifs: introduce helper for finding referral server to improve DFS target resolution
  cifs: check all path components in resolved dfs target
  cifs: fix DFS failover
  cifs: fix nodfs mount option
  cifs: fix handling of escaped ',' in the password mount argument
  cifs: Add new parameter "acregmax" for distinct file and directory metadata timeout
  cifs: convert revalidate of directories to using directory metadata cache timeout
  cifs: Add new mount parameter "acdirmax" to allow caching directory metadata
  cifs: If a corrupted DACL is returned by the server, bail out.
  cifs: minor simplification to smb2_is_network_name_deleted
  TCON Reconnect during STATUS_NETWORK_NAME_DELETED
  cifs: cleanup a few le16 vs. le32 uses in cifsacl.c
  cifs: Change SIDs in ACEs while transferring file ownership.
  cifs: Retain old ACEs when converting between mode bits and ACL.
  cifs: Fix cifsacl ACE mask for group and others.
  cifs: clarify hostname vs ip address in /proc/fs/cifs/DebugData
  cifs: change confusing field serverName (to ip_addr)
  cifs: Fix inconsistent IS_ERR and PTR_ERR
  ...
2021-02-26 14:09:41 -08:00
Linus Torvalds fecfd01539 Updates for 5.12-rc1. Besides usual fixes and new drivers, we are
changing CLASS_FLASH to return success to make it easier to work with
 V4L2 stuff disabled, and we are getting rid of enum that should have
 been plain integer long time ago. I'm slightly nervous about potential
 warnings, but it needed to be fixed at some point.
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Merge tag 'leds-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds

Pull LED updates from Pavel Machek:
 "Besides the usual fixes and new drivers, we are changing CLASS_FLASH
  to return success to make it easier to work with V4L2 stuff disabled,
  and we are getting rid of enum that should have been plain integer
  long time ago. I'm slightly nervous about potential warnings, but it
  needed to be fixed at some point"

* tag 'leds-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
  leds: lp50xx: Get rid of redundant explicit casting
  leds: lp50xx: Update headers block to reflect reality
  leds: lp50xx: Get rid of redundant check in lp50xx_enable_disable()
  leds: lp50xx: Reduce level of dereferences
  leds: lp50xx: Switch to new style i2c-driver probe function
  leds: lp50xx: Don't spam logs when probe is deferred
  leds: apu: extend support for PC Engines APU1 with newer firmware
  leds: flash: Fix multicolor no-ops registration by return 0
  leds: flash: Add flash registration with undefined CONFIG_LEDS_CLASS_FLASH
  leds: lgm: Add LED controller driver for LGM SoC
  dt-bindings: leds: Add bindings for Intel LGM SoC
  leds: led-core: Get rid of enum led_brightness
  leds: gpio: Set max brightness to 1
  leds: lm3533: Switch to using the new API kobj_to_dev()
  leds: ss4200: simplify the return expression of register_nasgpio_led()
  leds: Use DEVICE_ATTR_{RW, RO, WO} macros
2021-02-26 13:56:40 -08:00
Linus Torvalds 8b83369ddc RISC-V Patches for the 5.12 Merge Window
I have a handful of new RISC-V related patches for this merge window:
 
 * A check to ensure drivers are properly using uaccess.  This isn't
   manifesting with any of the drivers I'm currently using, but may catch
   errors in new drivers.
 * Some preliminary support for the FU740, along with the HiFive
   Unleashed it will appear on.
 * NUMA support for RISC-V, which involves making the arm64 code generic.
 * Support for kasan on the vmalloc region.
 * A handful of new drivers for the Kendryte K210, along with the DT
   plumbing required to boot on a handful of K210-based boards.
 * Support for allocating ASIDs.
 * Preliminary support for kernels larger than 128MiB.
 * Various other improvements to our KASAN support, including the
   utilization of huge pages when allocating the KASAN regions.
 
 We may have already found a bug with the KASAN_VMALLOC code, but it's
 passing my tests.  There's a fix in the works, but that will probably
 miss the merge window.
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Merge tag 'riscv-for-linus-5.12-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:
 "A handful of new RISC-V related patches for this merge window:

   - A check to ensure drivers are properly using uaccess. This isn't
     manifesting with any of the drivers I'm currently using, but may
     catch errors in new drivers.

   - Some preliminary support for the FU740, along with the HiFive
     Unleashed it will appear on.

   - NUMA support for RISC-V, which involves making the arm64 code
     generic.

   - Support for kasan on the vmalloc region.

   - A handful of new drivers for the Kendryte K210, along with the DT
     plumbing required to boot on a handful of K210-based boards.

   - Support for allocating ASIDs.

   - Preliminary support for kernels larger than 128MiB.

   - Various other improvements to our KASAN support, including the
     utilization of huge pages when allocating the KASAN regions.

  We may have already found a bug with the KASAN_VMALLOC code, but it's
  passing my tests. There's a fix in the works, but that will probably
  miss the merge window.

* tag 'riscv-for-linus-5.12-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (75 commits)
  riscv: Improve kasan population by using hugepages when possible
  riscv: Improve kasan population function
  riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization
  riscv: Improve kasan definitions
  riscv: Get rid of MAX_EARLY_MAPPING_SIZE
  soc: canaan: Sort the Makefile alphabetically
  riscv: Disable KSAN_SANITIZE for vDSO
  riscv: Remove unnecessary declaration
  riscv: Add Canaan Kendryte K210 SD card defconfig
  riscv: Update Canaan Kendryte K210 defconfig
  riscv: Add Kendryte KD233 board device tree
  riscv: Add SiPeed MAIXDUINO board device tree
  riscv: Add SiPeed MAIX GO board device tree
  riscv: Add SiPeed MAIX DOCK board device tree
  riscv: Add SiPeed MAIX BiT board device tree
  riscv: Update Canaan Kendryte K210 device tree
  dt-bindings: add resets property to dw-apb-timer
  dt-bindings: fix sifive gpio properties
  dt-bindings: update sifive uart compatible string
  dt-bindings: update sifive clint compatible string
  ...
2021-02-26 10:28:35 -08:00
Linus Torvalds 5c2e7a0af2 xen: branch for v5.12-rc1
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Merge tag 'for-linus-5.12b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull more xen updates from Juergen Gross:

 - A small series for Xen event channels adding some sysfs nodes for per
   pv-device settings and statistics, and two fixes of theoretical
   problems.

 - two minor fixes (one for an unlikely error path, one for a comment).

* tag 'for-linus-5.12b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen-front-pgdir-shbuf: don't record wrong grant handle upon error
  xen: Replace lkml.org links with lore
  xen/evtchn: use READ/WRITE_ONCE() for accessing ring indices
  xen/evtchn: use smp barriers for user event ring
  xen/events: add per-xenbus device event statistics and settings
2021-02-26 10:04:45 -08:00
Linus Torvalds d94d14008e x86:
- take into account HVA before retrying on MMU notifier race
 - fixes for nested AMD guests without NPT
 - allow INVPCID in guest without PCID
 - disable PML in hardware when not in use
 - MMU code cleanups
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull more KVM updates from Paolo Bonzini:
 "x86:

   - take into account HVA before retrying on MMU notifier race

   - fixes for nested AMD guests without NPT

   - allow INVPCID in guest without PCID

   - disable PML in hardware when not in use

   - MMU code cleanups:

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits)
  KVM: SVM: Fix nested VM-Exit on #GP interception handling
  KVM: vmx/pmu: Fix dummy check if lbr_desc->event is created
  KVM: x86/mmu: Consider the hva in mmu_notifier retry
  KVM: x86/mmu: Skip mmu_notifier check when handling MMIO page fault
  KVM: Documentation: rectify rst markup in KVM_GET_SUPPORTED_HV_CPUID
  KVM: nSVM: prepare guest save area while is_guest_mode is true
  KVM: x86/mmu: Remove a variety of unnecessary exports
  KVM: x86: Fold "write-protect large" use case into generic write-protect
  KVM: x86/mmu: Don't set dirty bits when disabling dirty logging w/ PML
  KVM: VMX: Dynamically enable/disable PML based on memslot dirty logging
  KVM: x86: Further clarify the logic and comments for toggling log dirty
  KVM: x86: Move MMU's PML logic to common code
  KVM: x86/mmu: Make dirty log size hook (PML) a value, not a function
  KVM: x86/mmu: Expand on the comment in kvm_vcpu_ad_need_write_protect()
  KVM: nVMX: Disable PML in hardware when running L2
  KVM: x86/mmu: Consult max mapping level when zapping collapsible SPTEs
  KVM: x86/mmu: Pass the memslot to the rmap callbacks
  KVM: x86/mmu: Split out max mapping level calculation to helper
  KVM: x86/mmu: Expand collapsible SPTE zap for TDP MMU to ZONE_DEVICE and HugeTLB pages
  KVM: nVMX: no need to undo inject_page_fault change on nested vmexit
  ...
2021-02-26 10:00:12 -08:00
Linus Torvalds 245137cdf0 Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
 "118 patches:

   - The rest of MM.

     Includes kfence - another runtime memory validator. Not as thorough
     as KASAN, but it has unmeasurable overhead and is intended to be
     usable in production builds.

   - Everything else

  Subsystems affected by this patch series: alpha, procfs, sysctl,
  misc, core-kernel, MAINTAINERS, lib, bitops, checkpatch, init,
  coredump, seq_file, gdb, ubsan, initramfs, and mm (thp, cma,
  vmstat, memory-hotplug, mlock, rmap, zswap, zsmalloc, cleanups,
  kfence, kasan2, and pagemap2)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
  MIPS: make userspace mapping young by default
  initramfs: panic with memory information
  ubsan: remove overflow checks
  kgdb: fix to kill breakpoints on initmem after boot
  scripts/gdb: fix list_for_each
  x86: fix seq_file iteration for pat/memtype.c
  seq_file: document how per-entry resources are managed.
  fs/coredump: use kmap_local_page()
  init/Kconfig: fix a typo in CC_VERSION_TEXT help text
  init: clean up early_param_on_off() macro
  init/version.c: remove Version_<LINUX_VERSION_CODE> symbol
  checkpatch: do not apply "initialise globals to 0" check to BPF progs
  checkpatch: don't warn about colon termination in linker scripts
  checkpatch: add kmalloc_array_node to unnecessary OOM message check
  checkpatch: add warning for avoiding .L prefix symbols in assembly files
  checkpatch: improve TYPECAST_INT_CONSTANT test message
  checkpatch: prefer ftrace over function entry/exit printks
  checkpatch: trivial style fixes
  checkpatch: ignore warning designated initializers using NR_CPUS
  checkpatch: improve blank line after declaration test
  ...
2021-02-26 09:50:09 -08:00
NeilBrown b3656d8227 seq_file: document how per-entry resources are managed.
Patch series "Fix some seq_file users that were recently broken".

A recent change to seq_file broke some users which were using seq_file
in a non-"standard" way ...  though the "standard" isn't documented, so
they can be excused.  The result is a possible leak - of memory in one
case, of references to a 'transport' in the other.

These three patches:
 1/ document and explain the problem
 2/ fix the problem user in x86
 3/ fix the problem user in net/sctp

This patch (of 3):

Users of seq_file will sometimes find it convenient to take a resource,
such as a lock or memory allocation, in the ->start or ->next operations.
These are per-entry resources, distinct from per-session resources which
are taken in ->start and released in ->stop.

The preferred management of these is release the resource on the
subsequent call to ->next or ->stop.

However prior to Commit 1f4aace60b ("fs/seq_file.c: simplify seq_file
iteration code and interface") it happened that ->show would always be
called after ->start or ->next, and a few users chose to release the
resource in ->show.

This is no longer reliable.  Since the mentioned commit, ->next will
always come after a successful ->show (to ensure m->index is updated
correctly), so the original ordering cannot be maintained.

This patch updates the documentation to clearly state the required
behaviour.  Other patches will fix the few problematic users.

[akpm@linux-foundation.org: fix typo, per Willy]

Link: https://lkml.kernel.org/r/161248518659.21478.2484341937387294998.stgit@noble1
Link: https://lkml.kernel.org/r/161248539020.21478.3147971477400875336.stgit@noble1
Fixes: 1f4aace60b ("fs/seq_file.c: simplify seq_file iteration code and interface")
Signed-off-by: NeilBrown <neilb@suse.de>
Cc: Xin Long <lucien.xin@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-26 09:41:05 -08:00
Vijayanand Jitta e1fdc40334 lib: stackdepot: add support to disable stack depot
Add a kernel parameter stack_depot_disable to disable stack depot.  So
that stack hash table doesn't consume any memory when stack depot is
disabled.

The use case is CONFIG_PAGE_OWNER without page_owner=on.  Without this
patch, stackdepot will consume the memory for the hashtable.  By default,
it's 8M which is never trivial.

With this option, in CONFIG_PAGE_OWNER configured system, page_owner=off,
stack_depot_disable in kernel command line, we could save the wasted
memory for the hashtable.

[akpm@linux-foundation.org: fix CONFIG_STACKDEPOT=n build]

Link: https://lkml.kernel.org/r/1611749198-24316-2-git-send-email-vjitta@codeaurora.org
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Vijayanand Jitta <vjitta@codeaurora.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Yogesh Lal <ylal@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-26 09:41:04 -08:00
Miguel Ojeda c131bd0b54 treewide: Miguel has moved
Update contact info.

Link: https://lkml.kernel.org/r/20210206162524.GA11520@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-26 09:41:03 -08:00
Andrey Konovalov 7169487bc2 kasan: clarify that only first bug is reported in HW_TAGS
Hwardware tag-based KASAN only reports the first found bug. After that MTE
tag checking gets disabled. Clarify this in comments and documentation.

Link: https://lkml.kernel.org/r/00383ba88a47c3f8342d12263c24bdf95527b07d.1612546384.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-26 09:41:03 -08:00
Marco Elver 35beccf092 kfence: report sensitive information based on no_hash_pointers
We cannot rely on CONFIG_DEBUG_KERNEL to decide if we're running a "debug
kernel" where we can safely show potentially sensitive information in the
kernel log.

Instead, simply rely on the newly introduced "no_hash_pointers" to print
unhashed kernel pointers, as well as decide if our reports can include
other potentially sensitive information such as registers and corrupted
bytes.

Link: https://lkml.kernel.org/r/20210223082043.1972742-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Cc: Timur Tabi <timur@kernel.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-26 09:41:02 -08:00
Marco Elver bc8fbc5f30 kfence: add test suite
Add KFENCE test suite, testing various error detection scenarios. Makes
use of KUnit for test organization. Since KFENCE's interface to obtain
error reports is via the console, the test verifies that KFENCE outputs
expected reports to the console.

[elver@google.com: fix typo in test]
  Link: https://lkml.kernel.org/r/X9lHQExmHGvETxY4@elver.google.com
[elver@google.com: show access type in report]
  Link: https://lkml.kernel.org/r/20210111091544.3287013-2-elver@google.com

Link: https://lkml.kernel.org/r/20201103175841.3495947-9-elver@google.com
Signed-off-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Co-developed-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Jann Horn <jannh@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hillf Danton <hdanton@sina.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joern Engel <joern@purestorage.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: SeongJae Park <sjpark@amazon.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-26 09:41:02 -08:00
Marco Elver 10efe55f88 kfence, Documentation: add KFENCE documentation
Add KFENCE documentation in dev-tools/kfence.rst, and add to index.

[elver@google.com: add missing copyright header to documentation]
  Link: https://lkml.kernel.org/r/20210118092159.145934-4-elver@google.com

Link: https://lkml.kernel.org/r/20201103175841.3495947-8-elver@google.com
Signed-off-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Co-developed-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Jann Horn <jannh@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hillf Danton <hdanton@sina.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joern Engel <joern@purestorage.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: SeongJae Park <sjpark@amazon.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-26 09:41:02 -08:00
David Hildenbrand a89107c047 Documentation: sysfs/memory: clarify some memory block device properties
In commit 53cdc1cb29 ("drivers/base/memory.c: indicate all memory blocks
as removable") we changed the output of the "removable" property of memory
devices to return "1" if and only if the kernel supports memory offlining.

Let's update documentation, stating that the interface is legacy.  Also
update documentation of the "state" property and "valid_zones" properties.

Link: https://lkml.kernel.org/r/20210201181347.13262-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-26 09:41:00 -08:00
David Hildenbrand e9a2e48e87 drivers/base/memory: don't store phys_device in memory blocks
No need to store the value for each and every memory block, as we can
easily query the value at runtime.  Reshuffle the members to optimize the
memory layout.  Also, let's clarify what the interface once was used for
and why it's legacy nowadays.

"phys_device" was used on s390x in older versions of lsmem[2]/chmem[3],
back when they were still part of s390x-tools.  They were later replaced
by the variants in linux-utils.  For example, RHEL6 and RHEL7 contain
lsmem/chmem from s390-utils.  RHEL8 switched to versions from util-linux
on s390x [4].

"phys_device" was added with sysfs support for memory hotplug in commit
3947be1969 ("[PATCH] memory hotplug: sysfs and add/remove functions") in
2005.  It always returned 0.

s390x started returning something != 0 on some setups (if sclp.rzm is set
by HW) in 2010 via commit 57b552ba0b ("memory hotplug/s390: set
phys_device").

For s390x, it allowed for identifying which memory block devices belong to
the same storage increment (RZM).  Only if all memory block devices
comprising a single storage increment were offline, the memory could
actually be removed in the hypervisor.

Since commit e5d709bb5f ("s390/memory hotplug: provide
memory_block_size_bytes() function") in 2013 a memory block device spans
at least one storage increment - which is why the interface isn't really
helpful/used anymore (except by old lsmem/chmem tools).

There were once RFC patches to make use of "phys_device" in ACPI context;
however, the underlying problem could be solved using different interfaces
[1].

[1] https://patchwork.kernel.org/patch/2163871/
[2] https://github.com/ibm-s390-tools/s390-tools/blob/v2.1.0/zconf/lsmem
[3] https://github.com/ibm-s390-tools/s390-tools/blob/v2.1.0/zconf/chmem
[4] https://bugzilla.redhat.com/show_bug.cgi?id=1504134

Link: https://lkml.kernel.org/r/20210201181347.13262-2-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: Vaibhav Jain <vaibhav@linux.ibm.com>
Cc: Tom Rix <trix@redhat.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-26 09:41:00 -08:00
Chenyi Qiang 96564d7773 KVM: Documentation: rectify rst markup in kvm_run->flags
Commit c32b1b896d ("KVM: X86: Add the Document for
KVM_CAP_X86_BUS_LOCK_EXIT") added a new flag in kvm_run->flags
documentation, and caused warning in make htmldocs:

  Documentation/virt/kvm/api.rst:5004: WARNING: Unexpected indentation
  Documentation/virt/kvm/api.rst:5004: WARNING: Inline emphasis start-string without end-string

Fix this rst markup issue.

Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Message-Id: <20210226075541.27179-1-chenyi.qiang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-26 03:03:12 -05:00
Paolo Bonzini e2a0fcac6b Documentation: kvm: fix messy conversion from .txt to .rst
Building the documentation gives a warning that the KVM_PPC_RESIZE_HPT_PREPARE
label is defined twice.  The root cause is that the KVM_PPC_RESIZE_HPT_PREPARE
API is present twice, the second being a mix of the prepare and commit APIs.
Fix it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-26 03:02:22 -05:00
Linus Torvalds 2c87f7a38f pwm: Changes for v5.12-rc1
The ZTE ZX platform is being removed, so the PWM driver is no longer
 needed and removed as well. Other than that this contains a small set of
 fixes and cleanups across a couple of drivers.
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Merge tag 'pwm/for-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "The ZTE ZX platform is being removed, so the PWM driver is no longer
  needed and removed as well.

  Other than that this contains a small set of fixes and cleanups across
  a couple of drivers"

* tag 'pwm/for-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: lpc18xx-sct: remove unneeded semicolon
  pwm: iqs620a: Correct a stale state variable
  pwm: iqs620a: Fix overflow and optimize calculations
  pwm: rockchip: Enable clock before calling clk_get_rate()
  pwm: rockchip: Eliminate potential race condition when probing
  pwm: rockchip: Replace "bus clk" with "PWM clk"
  pwm: rockchip: rockchip_pwm_probe(): Remove superfluous clk_unprepare()
  pwm: rockchip: Enable APB clock during register access while probing
  pwm: Remove ZTE ZX driver
2021-02-25 12:23:49 -08:00
Randy Dunlap f37a15ea8d docs: proc.rst: fix indentation warning
Fix indentation snafu in proc.rst as reported by Stephen.

next-20210219/Documentation/filesystems/proc.rst:697: WARNING: Unexpected indentation.

Fixes: 93ea4a0b8f ("Documentation: proc.rst: add more about the 6 fields in loadavg")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20210223060418.21443-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-02-25 13:11:00 -07:00
Linus Torvalds fdce29602f drm fixes for 5.12-rc1 + msm-next
core:
 - vblank fence timing improvements
 
 dma-buf:
 - improve error handling
 
 ttm:
 - memory leak fix
 
 msm:
 - a6xx speedbin support
 - a508, a509, a512 support
 - various a5xx fixes
 - various dpu fixes
 - qseed3lite support for sm8250
 - dsi fix for msm8994
 - mdp5 fix for framerate bug with cmd mode panels
 - a6xx GMU OOB race fixes that were showing up in CI
 - various addition and removal of semicolons
 - gem submit fix for legacy userspace relocs path
 
 amdgpu:
 - Clang warning fix
 - S0ix platform shutdown/poweroff fix
 - Misc display fixes
 
 i915:
 - color format fix
 - -Wuninitialised reenabled
 - GVT ww locking, cmd parser fixes
 
 atyfb:
 - fix build
 
 rockchip:
 - AFBC modifier fix
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Merge tag 'drm-next-2021-02-26' of git://anongit.freedesktop.org/drm/drm

Pull more drm updates from Dave Airlie:
 "This is mostly fixes but I missed msm-next pull last week. It's been
  in drm-next.

  Otherwise it's a selection of i915, amdgpu and misc fixes, one TTM
  memory leak, nothing really major stands out otherwise.

  core:
   - vblank fence timing improvements

  dma-buf:
   - improve error handling

  ttm:
   - memory leak fix

  msm:
   - a6xx speedbin support
   - a508, a509, a512 support
   - various a5xx fixes
   - various dpu fixes
   - qseed3lite support for sm8250
   - dsi fix for msm8994
   - mdp5 fix for framerate bug with cmd mode panels
   - a6xx GMU OOB race fixes that were showing up in CI
   - various addition and removal of semicolons
   - gem submit fix for legacy userspace relocs path

  amdgpu:
   - clang warning fix
   - S0ix platform shutdown/poweroff fix
   - misc display fixes

  i915:
   - color format fix
   - -Wuninitialised reenabled
   - GVT ww locking, cmd parser fixes

  atyfb:
   - fix build

  rockchip:
   - AFBC modifier fix"

* tag 'drm-next-2021-02-26' of git://anongit.freedesktop.org/drm/drm: (60 commits)
  drm/panel: kd35t133: allow using non-continuous dsi clock
  drm/rockchip: Require the YTR modifier for AFBC
  drm/ttm: Fix a memory leak
  drm/drm_vblank: set the dma-fence timestamp during send_vblank_event
  dma-fence: allow signaling drivers to set fence timestamp
  dma-buf: heaps: Rework heap allocation hooks to return struct dma_buf instead of fd
  dma-buf: system_heap: Make sure to return an error if we abort
  drm/amd/display: Fix system hang after multiple hotplugs (v3)
  drm/amdgpu: fix shutdown and poweroff process failed with s0ix
  drm/i915: Nuke INTEL_OUTPUT_FORMAT_INVALID
  drm/i915: Enable -Wuninitialized
  drm/amd/display: Remove Assert from dcn10_get_dig_frontend
  drm/amd/display: Add vupdate_no_lock interrupts for DCN2.1
  Revert "drm/amd/display: reuse current context instead of recreating one"
  drm/amd/pm/swsmu: Avoid using structure_size uninitialized in smu_cmn_init_soft_gpu_metrics
  fbdev: atyfb: add stubs for aty_{ld,st}_lcd()
  drm/i915/gvt: Introduce per object locking in GVT scheduler.
  drm/i915/gvt: Purge dev_priv->gt
  drm/i915/gvt: Parse default state to update reg whitelist
  dt-bindings: dp-connector: Drop maxItems from -supply
  ...
2021-02-25 12:10:22 -08:00