Commit Graph

40934 Commits

Author SHA1 Message Date
Linus Torvalds
59c36bc8d3 pci-v5.3-fixes-1
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Merge tag 'pci-v5.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - Reset both NVIDIA GPU and HDA in ThinkPad P50 quirk, which was broken
   by another quirk that enabled the HDA device (Lyude Paul)

 - Fix pciebus-howto.rst documentation filename typo (Bjorn Helgaas)

* tag 'pci-v5.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  Documentation PCI: Fix pciebus-howto.rst filename typo
  PCI: Reset both NVIDIA GPU and HDA in ThinkPad P50 workaround
2019-08-22 14:04:47 -07:00
Kever Yang
9f72a1d030 dt-bindings: arm: rockchip: remove reference to fennec board
The rk3288 fennec board has been removed, remove the binding document at
the same time.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-08-22 21:32:18 +02:00
Ashish Kumar
be28f76b7e
spi: spi-fsl-qspi: Add ls2080a compatibility string to bindings
There are 2 version of QSPI-IP, according to which controller registers sets
can be big endian or little endian.There are some other minor changes like
RX fifo depth etc.

The big endian version uses driver compatible "fsl,ls1021a-qspi" and
little endian version uses driver compatible "fsl,ls2080a-qspi"

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Ashish Kumar <ashish.kumar@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Han Xu <han.xu@nxp.com>
Link: https://lore.kernel.org/r/1565691791-26167-1-git-send-email-Ashish.Kumar@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-22 20:21:50 +01:00
Ashish Kumar
303290e130
spi: fsl-qspi: Enhance binding to extend example for flash entry
Add example for adding flash entry on various boards' dts
using flash manufacture spansion/cypress.

Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Link: https://lore.kernel.org/r/1565691791-26167-3-git-send-email-Ashish.Kumar@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-22 20:06:52 +01:00
Ingo Molnar
6c06b66e95 Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU and LKMM changes from Paul E. McKenney:

 - A few more RCU flavor consolidation cleanups.

 - Miscellaneous fixes.

 - Updates to RCU's list-traversal macros improving lockdep usability.

 - Torture-test updates.

 - Forward-progress improvements for no-CBs CPUs: Avoid ignoring
   incoming callbacks during grace-period waits.

 - Forward-progress improvements for no-CBs CPUs: Use ->cblist
   structure to take advantage of others' grace periods.

 - Also added a small commit that avoids needlessly inflicting
   scheduler-clock ticks on callback-offloaded CPUs.

 - Forward-progress improvements for no-CBs CPUs: Reduce contention
   on ->nocb_lock guarding ->cblist.

 - Forward-progress improvements for no-CBs CPUs: Add ->nocb_bypass
   list to further reduce contention on ->nocb_lock guarding ->cblist.

 - LKMM updates.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-08-22 20:52:04 +02:00
Vincenzo Frascino
1243cb6a67 arm64: Add tagged-address-abi.rst to index.rst
Documentation/arm64/tagged-address-abi.rst introduces the
relaxation of the syscall ABI that allows userspace to pass
certain tagged pointers to kernel syscalls.

Add the document to index.rst for a correct generation of the
table of content.

Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-08-22 18:22:57 +01:00
Vincenzo Frascino
e1b832503e arm64: Define Documentation/arm64/tagged-address-abi.rst
On AArch64 the TCR_EL1.TBI0 bit is set by default, allowing userspace
(EL0) to perform memory accesses through 64-bit pointers with a non-zero
top byte. Introduce the document describing the relaxation of the
syscall ABI that allows userspace to pass certain tagged pointers to
kernel syscalls.

Cc: Will Deacon <will.deacon@arm.com>
Cc: Szabolcs Nagy <szabolcs.nagy@arm.com>
Acked-by: Kevin Brodsky <kevin.brodsky@arm.com>
Acked-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Co-developed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-08-22 12:32:26 +01:00
Sibi Sankar
a1c4743e99 dt-bindings: soc: qcom: aoss: Add SM8150 and SC7180 support
Add SM8150 and SC7180 AOSS QMP to the list of possible bindings.

Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-21 15:59:30 -07:00
Sibi Sankar
e6fdc7ad66 dt-bindings: firmware: scm: Add SM8150 and SC7180 support
Add compatible for SM8150 and SC7180 SoCs.

Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-21 15:58:19 -07:00
Sibi Sankar
2aabdf3b50 dt-bindings: firmware: scm: re-order compatible list
re-order compatible list to maintain sort order.

Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-21 15:58:09 -07:00
Heiko Carstens
f62f7dcbf0 Documentation/s390: remove outdated debugging390 documentation
This file would need a lot of work to make sense again. Thomas Huth
started working on that four years ago, but that wasn't finished.
Therefore remove this.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-08-21 12:41:43 +02:00
Heiko Carstens
8c72e0c852 Documentation/s390: remove outdated dasd documentation
The contents of the file is completely outdated - just remove it.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-08-21 12:41:42 +02:00
Neil Armstrong
effdd8a6b6 dt-bindings: arm: amlogic: add SEI Robotics SEI610 bindings
Add the compatible for the Amlogic SM1 Based SEI610 board.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-20 12:22:58 -07:00
Neil Armstrong
2fd10e6d4e dt-bindings: arm: amlogic: add SM1 bindings
Add bindings for the new Amlogic SM1 SoC Family.

It a derivative of the G12A SoC Family with :
- Cortex-A55 core instead of A53
- more power domains
- a neural network co-processor
- a CSI input and image processor

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-20 12:22:51 -07:00
Neil Armstrong
b555cafb76 dt-bindings: soc: amlogic: clk-measure: Add SM1 compatible
Add the Amlogic SM1 Compatible for the clk-measurer IP.

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-20 12:21:13 -07:00
Manivannan Sadhasivam
7f01494fd8
spi: Fix the number of CS lines documented as an example
The number of CS lines is mentioned as 2 in the spi-controller binding
but however in the example, 4 cs-gpios are used. Hence fix that to
mention 4.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20190820115000.32041-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-20 13:17:59 +01:00
Jerome Brunet
0688587a71 dt-bindings: clock: meson: add resets to the audio clock controller
Add the documentation and bindings for the resets provided by the g12a
audio clock controller

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2019-08-20 11:50:30 +02:00
Marc Zyngier
7f2481b39b irqchip/gic-v3: Add quirks for HIP06/07 invalid GICD_TYPER erratum 161010803
It looks like the HIP06/07 SoCs have extra bits in their GICD_TYPER
registers, which confuse the GICv3.1 code (these systems appear to
expose ESPIs while they actually don't).

Detect these systems as early as possible and wipe the fields that
should be RES0 in the register.

Tested-by: John Garry <john.garry@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
2019-08-20 10:23:35 +01:00
Marc Zyngier
4b049063e0 dt-bindings: interrupt-controller: arm,gic-v3: Describe EPPI range support
Update the GICv3 binding to allow interrupts in the EPPI range.

Signed-off-by: Marc Zyngier <maz@kernel.org>
2019-08-20 10:23:35 +01:00
Marc Zyngier
8662465348 dt-bindings: interrupt-controller: arm,gic-v3: Describe ESPI range support
GICv3.1 introduces support for new interrupt ranges, one of them being
the Extended SPI range (ESPI). The DT binding is extended to deal with
it as a new interrupt class.

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
2019-08-20 10:04:09 +01:00
Tom Lendacky
c49a0a8013 x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h
There have been reports of RDRAND issues after resuming from suspend on
some AMD family 15h and family 16h systems. This issue stems from a BIOS
not performing the proper steps during resume to ensure RDRAND continues
to function properly.

RDRAND support is indicated by CPUID Fn00000001_ECX[30]. This bit can be
reset by clearing MSR C001_1004[62]. Any software that checks for RDRAND
support using CPUID, including the kernel, will believe that RDRAND is
not supported.

Update the CPU initialization to clear the RDRAND CPUID bit for any family
15h and 16h processor that supports RDRAND. If it is known that the family
15h or family 16h system does not have an RDRAND resume issue or that the
system will not be placed in suspend, the "rdrand=force" kernel parameter
can be used to stop the clearing of the RDRAND CPUID bit.

Additionally, update the suspend and resume path to save and restore the
MSR C001_1004 value to ensure that the RDRAND CPUID setting remains in
place after resuming from suspend.

Note, that clearing the RDRAND CPUID bit does not prevent a processor
that normally supports the RDRAND instruction from executing it. So any
code that determined the support based on family and model won't #UD.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chen Yu <yu.c.chen@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: "linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Cc: "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "x86@kernel.org" <x86@kernel.org>
Link: https://lkml.kernel.org/r/7543af91666f491547bd86cebb1e17c66824ab9f.1566229943.git.thomas.lendacky@amd.com
2019-08-19 19:42:52 +02:00
Linus Torvalds
06821504fd Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

  1) Fix jmp to 1st instruction in x64 JIT, from Alexei Starovoitov.

  2) Severl kTLS fixes in mlx5 driver, from Tariq Toukan.

  3) Fix severe performance regression due to lack of SKB coalescing of
     fragments during local delivery, from Guillaume Nault.

  4) Error path memory leak in sch_taprio, from Ivan Khoronzhuk.

  5) Fix batched events in skbedit packet action, from Roman Mashak.

  6) Propagate VLAN TX offload to hw_enc_features in bond and team
     drivers, from Yue Haibing.

  7) RXRPC local endpoint refcounting fix and read after free in
     rxrpc_queue_local(), from David Howells.

  8) Fix endian bug in ibmveth multicast list handling, from Thomas
     Falcon.

  9) Oops, make nlmsg_parse() wrap around the correct function,
     __nlmsg_parse not __nla_parse(). Fix from David Ahern.

 10) Memleak in sctp_scend_reset_streams(), fro Zheng Bin.

 11) Fix memory leak in cxgb4, from Wenwen Wang.

 12) Yet another race in AF_PACKET, from Eric Dumazet.

 13) Fix false detection of retransmit failures in tipc, from Tuong
     Lien.

 14) Use after free in ravb_tstamp_skb, from Tho Vu.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (101 commits)
  ravb: Fix use-after-free ravb_tstamp_skb
  netfilter: nf_tables: map basechain priority to hardware priority
  net: sched: use major priority number as hardware priority
  wimax/i2400m: fix a memory leak bug
  net: cavium: fix driver name
  ibmvnic: Unmap DMA address of TX descriptor buffers after use
  bnxt_en: Fix to include flow direction in L2 key
  bnxt_en: Use correct src_fid to determine direction of the flow
  bnxt_en: Suppress HWRM errors for HWRM_NVM_GET_VARIABLE command
  bnxt_en: Fix handling FRAG_ERR when NVM_INSTALL_UPDATE cmd fails
  bnxt_en: Improve RX doorbell sequence.
  bnxt_en: Fix VNIC clearing logic for 57500 chips.
  net: kalmia: fix memory leaks
  cx82310_eth: fix a memory leak bug
  bnx2x: Fix VF's VLAN reconfiguration in reload.
  Bluetooth: Add debug setting for changing minimum encryption key size
  tipc: fix false detection of retransmit failures
  lan78xx: Fix memory leaks
  MAINTAINERS: r8169: Update path to the driver
  MAINTAINERS: PHY LIBRARY: Update files in the record
  ...
2019-08-19 10:00:01 -07:00
Christoph Hellwig
df43acac8e ia64: remove the zx1 swiotlb machvec
The aim of this machvec is to support devices with < 32-bit dma
masks.  But given that ia64 only has a ZONE_DMA32 and not a ZONE_DMA
that isn't supported by swiotlb either.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lkml.kernel.org/r/20190813072514.23299-21-hch@lst.de
Signed-off-by: Tony Luck <tony.luck@intel.com>
2019-08-16 11:33:57 -07:00
Christoph Hellwig
f7bc6e42bf drivers: remove the SGI SN2 IOC4 base support
The IOC4 is a multi-function chip seen on SGI SN2 and some SGI MIPS
systems.  This removes the base driver, which while not having an SN2
Kconfig dependency was only for sub-drivers that had one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lkml.kernel.org/r/20190813072514.23299-15-hch@lst.de
Signed-off-by: Tony Luck <tony.luck@intel.com>
2019-08-16 11:33:57 -07:00
Justin Swartz
dd7c66ac77 ARM: dts: add device tree for Mecer Xtreme Mini S6
The Mecer Xtreme Mini S6 features a Rockchip RK3229 SoC,
1GB DDR3 RAM, 8GB eMMC, MicroSD port, 10/100Mbps Ethernet,
Realtek 8723BS WLAN module, 2 x USB 2.0 ports, HDMI output,
and S/PDIF output.

Signed-off-by: Justin Swartz <justin.swartz@risingedge.co.za>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-08-16 18:04:43 +02:00
Andy Yan
fc702ed49a arm64: dts: rockchip: Add dts for Leez RK3399 P710 SBC
P710 is a RK3399 based SBC, designed by Leez [0].

Specification
- Rockchip RK3399
- 4/2GB LPDDR4
- TF sd scard slot
- eMMC
- M.2 B-Key for 4G LTE
- AP6256 for WiFi + BT
- Gigabit ethernet
- HDMI out
- 40 pin header
- USB 2.0 x 2
- USB 3.0 x 1
- USB 3.0 Type-C x 1
- TYPE-C Power supply

[0]https://leez.lenovo.com

Signed-off-by: Andy Yan <andyshrk@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-08-16 14:39:20 +02:00
Bjorn Helgaas
7bafda88de Documentation PCI: Fix pciebus-howto.rst filename typo
2e64224448 ("Documentation: PCI: convert PCIEBUS-HOWTO.txt to reST")
incorrectly renamed PCIEBUS-HOWTO.txt to picebus-howto.rst.

Rename it to pciebus-howto.rst.

Fixes: 2e64224448 ("Documentation: PCI: convert PCIEBUS-HOWTO.txt to reST")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-08-15 12:12:38 -05:00
Raag Jadav
ff461ebfd4
regulator: act8865 regulator modes and suspend states
Add documentation for act8865 regulator modes and suspend states.
Add active-semi,8865-regulator.h file for device tree binding constants
for act8865 regulators.

Signed-off-by: Raag Jadav <raagjadav@gmail.com>
Link: https://lore.kernel.org/r/1565721176-8955-3-git-send-email-raagjadav@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-15 18:00:38 +01:00
Linus Torvalds
2b245b8b03 Devicetree fixes for 5.3:
- Fix building DT binding examples for in tree builds
 
 - Correct some refcounting in adjust_local_phandle_references()
 
 - Update FSL FEC binding with deprecated properties
 
 - Schema fix in stm32 pinctrl
 
 - Fix typo in of_irq_parse_one docbook comment
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Merge tag 'devicetree-fixes-for-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Fix building DT binding examples for in tree builds

 - Correct some refcounting in adjust_local_phandle_references()

 - Update FSL FEC binding with deprecated properties

 - Schema fix in stm32 pinctrl

 - Fix typo in of_irq_parse_one docbook comment

* tag 'devicetree-fixes-for-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: irq: fix a trivial typo in a doc comment
  dt-bindings: pinctrl: stm32: Fix 'st,syscfg' schema
  dt-bindings: fec: explicitly mark deprecated properties
  of: resolver: Add of_node_put() before return and break
  dt-bindings: Fix generated example files getting added to schemas
2019-08-15 09:18:56 -07:00
Lokesh Vutla
fe8cf20d29 dt-bindings: gpio: davinci: Add new compatible for J721E SoCs
J721e SoCs have same gpio IP as K2G davinci gpio. Add a new compatible to
handle J721E SoCs.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20190809082947.30590-2-lokeshvutla@ti.com
Reviewed-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-15 09:46:29 +02:00
Linus Walleij
fdd61a013a gpio: Add support for hierarchical IRQ domains
Hierarchical IRQ domains can be used to stack different IRQ
controllers on top of each other.

Bring hierarchical IRQ domains into the GPIOLIB core with the
following basic idea:

Drivers that need their interrupts handled hierarchically
specify a callback to translate the child hardware IRQ and
IRQ type for each GPIO offset to a parent hardware IRQ and
parent hardware IRQ type.

Users have to pass the callback, fwnode, and parent irqdomain
before calling gpiochip_irqchip_add().

We use the new method of just filling in the struct
gpio_irq_chip before adding the gpiochip for all hierarchical
irqchips of this type.

The code path for device tree is pretty straight-forward,
while the code path for old boardfiles or anything else will
be more convoluted requireing upfront allocation of the
interrupts when adding the chip.

One specific use-case where this can be useful is if a power
management controller has top-level controls for wakeup
interrupts. In such cases, the power management controller can
be a parent to other interrupt controllers and program
additional registers when an IRQ has its wake capability
enabled or disabled.

The hierarchical irqchip helper code will only be available
when IRQ_DOMAIN_HIERARCHY is selected to GPIO chips using
this should select or depend on that symbol. When using
hierarchical IRQs, the parent interrupt controller must
also be hierarchical all the way up to the top interrupt
controller wireing directly into the CPU, so on systems
that do not have this we can get rid of all the extra
code for supporting hierarchical irqs.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Lina Iyer <ilina@codeaurora.org>
Cc: Jon Hunter <jonathanh@nvidia.com>
Cc: Sowjanya Komatineni <skomatineni@nvidia.com>
Cc: Bitan Biswas <bbiswas@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Cc: David Daney <david.daney@cavium.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Brian Masney <masneyb@onstation.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Brian Masney <masneyb@onstation.org>
Co-developed-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190808123242.5359-1-linus.walleij@linaro.org
2019-08-15 09:44:19 +02:00
Rob Herring
626633425c dt-bindings: pinctrl: stm32: Fix 'st,syscfg' schema
The proper way to add additional contraints to an existing json-schema
is using 'allOf' to reference the base schema. Using just '$ref' doesn't
work. Fix this for the 'st,syscfg' property.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-08-14 20:07:43 -06:00
Arnd Bergmann
738590a3fe ARM SCMI updates/fixes for v5.4
Handful of fixes/updates including:
 1. SCMI v2.0(recently released) support for:
 	- Performance protocol fast channels
 	- Reset Management Protocol
 2. SCMI infrastructure/core support for recieve(Rx) channels,
    asynchronous commands and delayed response
 3. Usage of asynchronous commands for clock rate setting and sensor
    reading based on the attributes read from the firmware
 4. Miscellaneous cleanups(typos, naming alignment with specification,
    and SPDX License identifier)
 5. Couple of fixes: removal of extra check for invalid length and
    additional check to ensure platform/firmware has released shared
    memory before using it in OSPM
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Merge tag 'scmi-updates-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers

ARM SCMI updates/fixes for v5.4

Handful of fixes/updates including:
1. SCMI v2.0(recently released) support for:
	- Performance protocol fast channels
	- Reset Management Protocol
2. SCMI infrastructure/core support for recieve(Rx) channels,
   asynchronous commands and delayed response
3. Usage of asynchronous commands for clock rate setting and sensor
   reading based on the attributes read from the firmware
4. Miscellaneous cleanups(typos, naming alignment with specification,
   and SPDX License identifier)
5. Couple of fixes: removal of extra check for invalid length and
   additional check to ensure platform/firmware has released shared
   memory before using it in OSPM

* tag 'scmi-updates-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: (22 commits)
  reset: Add support for resets provided by SCMI
  firmware: arm_scmi: Add RESET protocol in SCMI v2.0
  dt-bindings: arm: Extend SCMI to support new reset protocol
  firmware: arm_scmi: Make use SCMI v2.0 fastchannel for performance protocol
  firmware: arm_scmi: Add discovery of SCMI v2.0 performance fastchannels
  firmware: arm_scmi: Use {get,put}_unaligned_le{32,64} accessors
  firmware: arm_scmi: Use asynchronous CLOCK_RATE_SET when possible
  firmware: arm_scmi: Drop config flag in clk_ops->rate_set
  firmware: arm_scmi: Add asynchronous sensor read if it supports
  firmware: arm_scmi: Drop async flag in sensor_ops->reading_get
  firmware: arm_scmi: Add support for asynchronous commands and delayed response
  firmware: arm_scmi: Add mechanism to unpack message headers
  firmware: arm_scmi: Separate out tx buffer handling and prepare to add rx
  firmware: arm_scmi: Add receive channel support for notifications
  firmware: arm_scmi: Segregate tx channel handling and prepare to add rx
  firmware: arm_scmi: Reorder some functions to avoid forward declarations
  firmware: arm_scmi: Check if platform has released shmem before using
  firmware: arm_scmi: Use the term 'message' instead of 'command'
  firmware: arm_scmi: Fix few trivial typos in comments
  firmware: arm_scmi: Remove extra check for invalid length message responses
  ...

Link: https://lore.kernel.org/r/20190814172454.26191-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-14 20:46:38 +02:00
Marek Behún
8c9e465b48 dt-bindings: gpio: Document GPIOs via Moxtet bus
This patch adds documentation of the device tree bindings for GPIOs
on the devices connected via Moxtet bus.

Link: https://lore.kernel.org/r/20190812161118.21476-6-marek.behun@nic.cz
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-14 15:31:02 +02:00
Marek Behún
2091b417aa bus: moxtet: Add sysfs and debugfs documentation
Add sysfs ABI documentation for the attribute files module_id and
module_name

Add debugfs ABI documentation for reading input from the shift registers
and reading last written output or write output to the shift registers.

Link: https://lore.kernel.org/r/20190812161118.21476-4-marek.behun@nic.cz
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-14 15:30:49 +02:00
Marek Behún
20e6cf7e74 dt-bindings: bus: Document moxtet bus binding
This adds device tree binding documentation for the Moxtet bus, a bus
via which the different modules connected to the Turris Mox router can
be configured.

Link: https://lore.kernel.org/r/20190812161118.21476-3-marek.behun@nic.cz
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-14 15:30:43 +02:00
Will Deacon
d06fa5a118 Merge tag 'common/for-v5.4-rc1/cpu-topology' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux into for-next/cpu-topology
Pull in generic CPU topology changes from Paul Walmsley (RISC-V).

* tag 'common/for-v5.4-rc1/cpu-topology' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  MAINTAINERS: Add an entry for generic architecture topology
  base: arch_topology: update Kconfig help description
  RISC-V: Parse cpu topology during boot.
  arm: Use common cpu_topology structure and functions.
  cpu-topology: Move cpu topology code to common code.
  dt-binding: cpu-topology: Move cpu-map to a common binding.
  Documentation: DT: arm: add support for sockets defining package boundaries
2019-08-14 10:07:00 +01:00
Hongwei Zhang
7a637fd32b dt-bindings: gpio: aspeed: Add SGPIO support
Add bindings to support SGPIO on AST2400 or AST2500.

Signed-off-by: Hongwei Zhang <hongweiz@ami.com>
Reviewed-by:   Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/1564603297-1391-2-git-send-email-hongweiz@ami.com
[Adjusted when applying in several ways]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-14 09:58:10 +02:00
Paul E. McKenney
f7c612b000 rcu/nocb: Rename rcu_nocb_leader_stride kernel boot parameter
This commit changes the name of the rcu_nocb_leader_stride kernel
boot parameter to rcu_nocb_gp_stride in order to account for the new
distinction between callback and grace-period no-CBs kthreads.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
2019-08-13 14:32:39 -07:00
Paul E. McKenney
31da067023 Merge branches 'consolidate.2019.08.01b', 'fixes.2019.08.12a', 'lists.2019.08.13a' and 'torture.2019.08.01b' into HEAD
consolidate.2019.08.01b: Further consolidation cleanups
fixes.2019.08.12a: Miscellaneous fixes
lists.2019.08.13a: Optional lockdep arguments for RCU list macros
torture.2019.08.01b: Torture-test updates
2019-08-13 14:30:30 -07:00
Arnd Bergmann
d1406583f4 Renesas DT binding updates for v5.4
- RZ/G2 updates for the R-Car CAN and CANFD DT bindings.
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Merge tag 'renesas-dt-bindings-for-v5.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt

Renesas DT binding updates for v5.4

  - RZ/G2 updates for the R-Car CAN and CANFD DT bindings.

* tag 'renesas-dt-bindings-for-v5.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  dt-bindings: can: rcar_can: Complete documentation for RZ/G2[EM]
  dt-bindings: can: rcar_canfd: document r8a774a1 support

Link: https://lore.kernel.org/r/20190802120355.1430-4-geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-13 15:41:11 +02:00
Arnd Bergmann
428cb860c4 Reset controller changes for v5.4
This tag adds support for the i.MX8MM SRC via the reset-imx7 driver
 and for DesignWare IP reset controllers via the reset-simple driver.
 A typo in the i.MX8MQ DSI reset definitions is fixed, and the Meson
 reset driver and binding headers are updated to SPDX license
 identifiers.
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Merge tag 'reset-for-v5.4' of git://git.pengutronix.de/git/pza/linux into arm/drivers

Reset controller changes for v5.4

This tag adds support for the i.MX8MM SRC via the reset-imx7 driver
and for DesignWare IP reset controllers via the reset-simple driver.
A typo in the i.MX8MQ DSI reset definitions is fixed, and the Meson
reset driver and binding headers are updated to SPDX license
identifiers.

* tag 'reset-for-v5.4' of git://git.pengutronix.de/git/pza/linux:
  reset: Add DesignWare IP support to simple reset
  dt-bindings: Document the DesignWare IP reset bindings
  dt-bindings: reset: amlogic,meson8b-reset: update with SPDX Licence identifier
  dt-bindings: reset: amlogic,meson-gxbb-reset: update with SPDX Licence identifier
  reset: reset-meson: update with SPDX Licence identifier
  dt-bindings: reset: Fix typo in imx8mq resets
  dt-bindings: reset: imx7: Add support for i.MX8MM

Link: https://lore.kernel.org/r/1565603668.5017.2.camel@pengutronix.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-13 14:29:29 +02:00
Sven Van Asbroeck
fd295733e7 dt-bindings: fec: explicitly mark deprecated properties
fec's gpio phy reset properties have been deprecated.
Update the dt-bindings documentation to explicitly mark
them as such, and provide a short description of the
recommended alternative.

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-08-12 17:12:03 -06:00
Jonathan Neuschäfer
4514fe8cd9 Documentation/arm/samsung-s3c24xx: Remove stray U+FEFF character to fix title
It seems a UTF-8 byte order mark (the least useful kind of BOM...) snuck
into the file and broke Sphinx's detection of the title line.

Besides making arm/samsung-s3c24xx/index.html look a little better, this
patch also confines the non-index pages in arm/samsung-s3c24xx to their
own table of contents.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12 15:25:32 -06:00
Jonathan Neuschäfer
13afbbf49a Documentation/arm/sa1100/assabet: Fix 'make assabet_defconfig' command
"make assabet_config" doesn't work.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12 15:24:31 -06:00
Jonathan Neuschäfer
198266af3a Documentation/arm/sa1100: Remove some obsolete documentation
The support for the following boards, among others, was removed in 2004
with commit "[ARM] Remove broken SA1100 machine support.":

- ADS Bitsy
- Brutus
- Freebird
- ADS GraphicsClient Plus
- ADS GraphicsMaster
- Höft & Wessel Webpanel
- Compaq Itsy
- nanoEngine
- Pangolin
- PLEB
- Yopy

Tifon support has been removed in 2.4.3.3.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12 15:19:35 -06:00
Alex Shi
6a241a11f9 docs/zh_CN: update Chinese howto.rst for latexdocs making
Mauro Carvalho Chehab <mchehab+samsung@kernel.org> found a reference
error in Chinese howto.rst. and further more there more infos of
latexdocs/epubdocs format doc making in English howto.rst.

So I update this part according to latest howto.rst and settled
the correct reference.

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12 15:17:15 -06:00
Sheriff Esseson
03d36521f5 Documentation: virt: Fix broken reference to virt tree's index
Fix broken reference to virt/index.rst.

Fixes: 2f5947dfca ("Documentation: move Documentation/virtual to Documentation/virt")
Signed-off-by: Sheriff Esseson <sheriffesseson@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12 15:15:33 -06:00
Marco Villegas
3b2cb439a6 docs: Fix typo on pull requests guide
Signed-off-by: Marco Villegas <git@marvil07.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12 15:14:14 -06:00
Jonathan Neuschäfer
82bf829b69 Documentation: sphinx: Don't parse socket() as identifier reference
With the introduction of Documentation/sphinx/automarkup.py, socket() is
parsed as a reference to the in-kernel definition of socket. Sphinx then
decides that struct socket is a good match, which is usually not
intended, when the syscall is meant instead. This was observed in
Documentation/networking/af_xdp.rst.

Prevent socket() from being misinterpreted by adding it to the Skipfuncs
list in automarkup.py.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12 14:55:30 -06:00
Jonathan Neuschäfer
11fec009d9 Documentation: sphinx: Add missing comma to list of strings
In Python, like in C, when a comma is omitted in a list of strings, the
two strings around the missing comma are concatenated.

Cc: stable@vger.kernel.org  # v5.2 only
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12 14:54:22 -06:00
Uwe Kleine-König
abab1cd6c6 dt-bindings: add vendor prefix "acme" for "Acme Systems srl"
Add prefix for Acme Systems srl
https://www.acmesystems.it

Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20190728210403.2730-2-uwe@kleine-koenig.org
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-12 22:53:42 +02:00
Anson Huang
d3b682c49e dt-bindings: arm: imx: Add the soc binding for i.MX8MN
This patch adds the soc & board binding for i.MX8MN.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-12 14:22:31 +02:00
Sudeep Holla
ae39913ce4 dt-bindings: arm: Extend SCMI to support new reset protocol
SCMIv2.0 adds a new Reset Management Protocol to manage various reset
states a given device or domain can enter. Extend the existing SCMI
bindings to add reset protocol support by re-using the reset bindings
for both reset providers and consumers.

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2019-08-12 12:23:02 +01:00
Linus Torvalds
296d05cb0d RISC-V updates for v5.3-rc4
A few minor RISC-V updates for v5.3-rc4:
 
 - Remove __udivdi3() from the 32-bit Linux port, converting the only
   upstream user to use do_div(), per Linux policy
 
 - Convert the RISC-V standard clocksource away from per-cpu data structures,
   since only one is used by Linux, even on a multi-CPU system
 
 - A set of DT binding updates that remove an obsolete text binding in
   favor of a YAML binding, fix a bogus compatible string in the schema
     (thus fixing a "make dtbs_check" warning), and clarifies the future
       values expected in one of the RISC-V CPU properties
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Merge tag 'riscv/for-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Paul Walmsley:
 "A few minor RISC-V updates for v5.3-rc4:

   - Remove __udivdi3() from the 32-bit Linux port, converting the only
     upstream user to use do_div(), per Linux policy

   - Convert the RISC-V standard clocksource away from per-cpu data
     structures, since only one is used by Linux, even on a multi-CPU
     system

   - A set of DT binding updates that remove an obsolete text binding in
     favor of a YAML binding, fix a bogus compatible string in the
     schema (thus fixing a "make dtbs_check" warning), and clarifies the
     future values expected in one of the RISC-V CPU properties"

* tag 'riscv/for-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  dt-bindings: riscv: fix the schema compatible string for the HiFive Unleashed board
  dt-bindings: riscv: remove obsolete cpus.txt
  RISC-V: Remove udivdi3
  riscv: delay: use do_div() instead of __udivdi3()
  dt-bindings: Update the riscv,isa string description
  RISC-V: Remove per cpu clocksource
2019-08-10 16:31:47 -07:00
Christian Hewitt
e2fb6f7c0d dt-bindings: arm: amlogic: fix x96-max/sei510 section in amlogic.yaml
Move amediatech,x96-max and seirobotics,sei510 to the S905D2 section and
update the S905D2 description to S905D2/X2/Y2.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09 14:46:27 -07:00
Christian Hewitt
8f920256e9 dt-bindings: arm: amlogic: add support for the Khadas VIM3
The Khadas VIM3 uses the Amlogic S922X or A311S SoC, both based on the
Amlogic G12B SoC family, on a board with the same form factor as the
VIM/VIM2 models. It ships in two variants; basic and
pro which differ in RAM and eMMC size:

- 2GB (basic) or 4GB (pro) LPDDR4 RAM
- 16GB (basic) or 32GB (pro) eMMC 5.1 storage
- 16MB SPI flash
- 10/100/1000 Base-T Ethernet
- AP6398S Wireless (802.11 a/b/g/n/ac, BT5.0)
- HDMI 2.1 video
- 1x USB 2.0 + 1x USB 3.0 ports
- 1x USB-C (power) with USB 2.0 OTG
- 3x LED's (1x red, 1x blue, 1x white)
- 3x buttons (power, function, reset)
- IR receiver
- M2 socket with PCIe, USB, ADC & I2C
- 40pin GPIO Header
- 1x micro SD card slot

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09 11:07:14 -07:00
Neil Armstrong
a0250352e3 dt-bindings: arm: amlogic: add bindings for the Amlogic G12B based A311D SoC
Add a specific compatible for the Amlogic G12B bases A311D SoC used
in the Khadas VIM3.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09 11:07:14 -07:00
Neil Armstrong
a742eda915 dt-bindings: arm: amlogic: add bindings for G12B based S922X SoC
Add a specific compatible for the Amlogic G12B family based S922X SoC
to differentiate with the A311D SoC from the same family.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09 11:07:14 -07:00
Maxime Jourdan
0b34189b08 dt-bindings: media: amlogic,vdec: add default compatible
The first version of the bindings is missing a generic compatible that
is used by the base node (GX), and then extended by the SoC device trees
(GXBB, GXL, GXM)

Also change the example to use "video-codec" instead of "video-decoder",
as the former is the one used in almost all cases when it comes to video
decode/encode accelerators.

Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09 11:07:14 -07:00
Gregory CLEMENT
906c4d5c93
dt-bindings: regulator: twl6030: Add retain-on-reset property
During reset the VMMC regulator doesn't reach 0V and only drops to
1.8V, furthermore the pulse width is under 200us whereas the SD
specification expect 1ms.

For this 2 reasons being able to no reset at all the VMMC during warm
reset and keep the current voltage is a good workaround. The TWL6030
allows this but needs to be aware of it and this configuration should
also be shared with the bootloader.

This is the purpose of this new property: ti,retain-on-reset

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20190725094542.16547-2-gregory.clement@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-09 18:04:03 +01:00
Vinod Koul
c6e20fa498
regulator: dt-bindings: Sort the compatibles and nodes
It helps to keep sorted order for compatibles and nodes, so sort them

Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20190809073616.1235-1-vkoul@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-09 13:27:12 +01:00
Steve Capper
d2c68de192 docs: arm64: Add layout and 52-bit info to memory document
As the kernel no longer prints out the memory layout on boot, this patch
adds this information back to the memory document.

Also, as the 52-bit support introduces some subtle changes to the arm64
memory, the rationale behind these changes are also added to the memory
document.

Signed-off-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-08-09 11:17:32 +01:00
Steve Capper
6bd1d0be0e arm64: kasan: Switch to using KASAN_SHADOW_OFFSET
KASAN_SHADOW_OFFSET is a constant that is supplied to gcc as a command
line argument and affects the codegen of the inline address sanetiser.

Essentially, for an example memory access:
    *ptr1 = val;
The compiler will insert logic similar to the below:
    shadowValue = *(ptr1 >> KASAN_SHADOW_SCALE_SHIFT + KASAN_SHADOW_OFFSET)
    if (somethingWrong(shadowValue))
        flagAnError();

This code sequence is inserted into many places, thus
KASAN_SHADOW_OFFSET is essentially baked into many places in the kernel
text.

If we want to run a single kernel binary with multiple address spaces,
then we need to do this with KASAN_SHADOW_OFFSET fixed.

Thankfully, due to the way the KASAN_SHADOW_OFFSET is used to provide
shadow addresses we know that the end of the shadow region is constant
w.r.t. VA space size:
    KASAN_SHADOW_END = ~0 >> KASAN_SHADOW_SCALE_SHIFT + KASAN_SHADOW_OFFSET

This means that if we increase the size of the VA space, the start of
the KASAN region expands into lower addresses whilst the end of the
KASAN region is fixed.

Currently the arm64 code computes KASAN_SHADOW_OFFSET at build time via
build scripts with the VA size used as a parameter. (There are build
time checks in the C code too to ensure that expected values are being
derived). It is sufficient, and indeed is a simplification, to remove
the build scripts (and build time checks) entirely and instead provide
KASAN_SHADOW_OFFSET values.

This patch removes the logic to compute the KASAN_SHADOW_OFFSET in the
arm64 Makefile, and instead we adopt the approach used by x86 to supply
offset values in kConfig. To help debug/develop future VA space changes,
the Makefile logic has been preserved in a script file in the arm64
Documentation folder.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-08-09 11:17:11 +01:00
Jakub Kicinski
414776621d net/tls: prevent skb_orphan() from leaking TLS plain text with offload
sk_validate_xmit_skb() and drivers depend on the sk member of
struct sk_buff to identify segments requiring encryption.
Any operation which removes or does not preserve the original TLS
socket such as skb_orphan() or skb_clone() will cause clear text
leaks.

Make the TCP socket underlying an offloaded TLS connection
mark all skbs as decrypted, if TLS TX is in offload mode.
Then in sk_validate_xmit_skb() catch skbs which have no socket
(or a socket with no validation) and decrypted flag set.

Note that CONFIG_SOCK_VALIDATE_XMIT, CONFIG_TLS_DEVICE and
sk->sk_validate_xmit_skb are slightly interchangeable right now,
they all imply TLS offload. The new checks are guarded by
CONFIG_TLS_DEVICE because that's the option guarding the
sk_buff->decrypted member.

Second, smaller issue with orphaning is that it breaks
the guarantee that packets will be delivered to device
queues in-order. All TLS offload drivers depend on that
scheduling property. This means skb_orphan_partial()'s
trick of preserving partial socket references will cause
issues in the drivers. We need a full orphan, and as a
result netem delay/throttling will cause all TLS offload
skbs to be dropped.

Reusing the sk_buff->decrypted flag also protects from
leaking clear text when incoming, decrypted skb is redirected
(e.g. by TC).

See commit 0608c69c9a ("bpf: sk_msg, sock{map|hash} redirect
through ULP") for justification why the internal flag is safe.
The only location which could leak the flag in is tcp_bpf_sendmsg(),
which is taken care of by clearing the previously unused bit.

v2:
 - remove superfluous decrypted mark copy (Willem);
 - remove the stale doc entry (Boris);
 - rely entirely on EOR marking to prevent coalescing (Boris);
 - use an internal sendpages flag instead of marking the socket
   (Boris).
v3 (Willem):
 - reorganize the can_skb_orphan_partial() condition;
 - fix the flag leak-in through tcp_bpf_sendmsg.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-08 22:39:35 -07:00
Stephen Hemminger
fe90689fed net: docs: replace IPX in tuntap documentation
IPX is no longer supported, but the example in the documentation
might useful. Replace it with IPv6.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-08 18:06:53 -07:00
Stephen Hemminger
7e7c076e12 docs: admin-guide: remove references to IPX and token-ring
Both IPX and TR have not been supported for a while now.
Remove them from the /proc/sys/net documentation.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-08 18:06:53 -07:00
Paul Walmsley
b390e0bfd2 dt-bindings: riscv: fix the schema compatible string for the HiFive Unleashed board
The YAML binding document for SiFive boards has an incorrect
compatible string for the HiFive Unleashed board.  Change it to match
the name of the board on the SiFive web site:

   https://www.sifive.com/boards/hifive-unleashed

which also matches the contents of the board DT data file:

   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts#n13

Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Acked-by: Rob Herring <robh@kernel.org>
2019-08-08 16:05:38 -07:00
Paul Walmsley
8e5e72e331 dt-bindings: riscv: remove obsolete cpus.txt
Remove the now-obsolete riscv/cpus.txt DT binding document, since we
are using YAML binding documentation instead.

While doing so, transfer the explanatory text about 'harts' (with some
edits) into the YAML file, at Rob's request.

Link: https://lore.kernel.org/linux-riscv/CAL_JsqJs6MtvmuyAknsUxQymbmoV=G+=JfS1PQj9kNHV7fjC9g@mail.gmail.com/
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
2019-08-08 16:05:38 -07:00
Atish Patra
94ed3fde38 dt-bindings: Update the riscv,isa string description
Since the RISC-V specification states that ISA description strings are
case-insensitive, there's no functional difference between mixed-case,
upper-case, and lower-case ISA strings. Thus, to simplify parsing,
specify that the letters present in "riscv,isa" must be all lowercase.

Suggested-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-08-08 16:05:38 -07:00
Vinod Koul
d566aae1c8
regulator: dt-bindings: Add PM8150x compatibles
Add PM8150, PM8150L and PM8009 compatibles for these PMICs found
in some Qualcomm platforms.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20190808093343.5600-1-vkoul@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-08 20:42:00 +01:00
Linus Torvalds
518a1c2f09 Merge tag '5.3-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
 "Six small SMB3 fixes, two for stable"

* tag '5.3-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  SMB3: Kernel oops mounting a encryptData share with CONFIG_DEBUG_VIRTUAL
  smb3: update TODO list of missing features
  smb3: send CAP_DFS capability during session setup
  SMB3: Fix potential memory leak when processing compound chain
  SMB3: Fix deadlock in validate negotiate hits reconnect
  cifs: fix rmmod regression in cifs.ko caused by force_sig changes
2019-08-08 09:57:50 -07:00
Niklas Söderlund
ddc8cd7d92 dt-bindings: rcar-{csi2,vin}: Rename bindings documentation files
Renesas media binding documentation files use a naming schema of
'renesas,<module>.txt'. Rename the VIN and CSI-2 files to match this
pattern.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-08-08 10:40:35 +02:00
Simon Horman
72a83ded7f dt-bindings: rcar-imr: Rename bindings documentation file
Renesas media binding documentation files use a naming schema of
'renesas,<module>.txt'. Rename the IMR file to match this pattern.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-08-08 10:40:19 +02:00
Simon Horman
f32d0c6363 dt-bindings: Rename file of DT bindings for Renesas memory controllers
For consistency with the naming of (most) other documentation files for DT
bindings for Renesas IP blocks rename the Renesas R-Mobile and SH-Mobile
memory controllers documentation file from renesas-memory-controllers.txt
to renesas,dbsc.txt.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-08-08 10:39:48 +02:00
Narendra K
1c5fecb612 efi: Export Runtime Configuration Interface table to sysfs
System firmware advertises the address of the 'Runtime
Configuration Interface table version 2 (RCI2)' via
an EFI Configuration Table entry. This code retrieves the RCI2
table from the address and exports it to sysfs as a binary
attribute 'rci2' under /sys/firmware/efi/tables directory.
The approach adopted is similar to the attribute 'DMI' under
/sys/firmware/dmi/tables.

RCI2 table contains BIOS HII in XML format and is used to populate
BIOS setup page in Dell EMC OpenManage Server Administrator tool.
The BIOS setup page contains BIOS tokens which can be configured.

Signed-off-by: Narendra K <Narendra.K@dell.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-08-08 11:10:25 +03:00
Dave Chiluk
de53fd7aed sched/fair: Fix low cpu usage with high throttling by removing expiration of cpu-local slices
It has been observed, that highly-threaded, non-cpu-bound applications
running under cpu.cfs_quota_us constraints can hit a high percentage of
periods throttled while simultaneously not consuming the allocated
amount of quota. This use case is typical of user-interactive non-cpu
bound applications, such as those running in kubernetes or mesos when
run on multiple cpu cores.

This has been root caused to cpu-local run queue being allocated per cpu
bandwidth slices, and then not fully using that slice within the period.
At which point the slice and quota expires. This expiration of unused
slice results in applications not being able to utilize the quota for
which they are allocated.

The non-expiration of per-cpu slices was recently fixed by
'commit 512ac999d2 ("sched/fair: Fix bandwidth timer clock drift
condition")'. Prior to that it appears that this had been broken since
at least 'commit 51f2176d74 ("sched/fair: Fix unlocked reads of some
cfs_b->quota/period")' which was introduced in v3.16-rc1 in 2014. That
added the following conditional which resulted in slices never being
expired.

if (cfs_rq->runtime_expires != cfs_b->runtime_expires) {
	/* extend local deadline, drift is bounded above by 2 ticks */
	cfs_rq->runtime_expires += TICK_NSEC;

Because this was broken for nearly 5 years, and has recently been fixed
and is now being noticed by many users running kubernetes
(https://github.com/kubernetes/kubernetes/issues/67577) it is my opinion
that the mechanisms around expiring runtime should be removed
altogether.

This allows quota already allocated to per-cpu run-queues to live longer
than the period boundary. This allows threads on runqueues that do not
use much CPU to continue to use their remaining slice over a longer
period of time than cpu.cfs_period_us. However, this helps prevent the
above condition of hitting throttling while also not fully utilizing
your cpu quota.

This theoretically allows a machine to use slightly more than its
allotted quota in some periods. This overflow would be bounded by the
remaining quota left on each per-cpu runqueueu. This is typically no
more than min_cfs_rq_runtime=1ms per cpu. For CPU bound tasks this will
change nothing, as they should theoretically fully utilize all of their
quota in each period. For user-interactive tasks as described above this
provides a much better user/application experience as their cpu
utilization will more closely match the amount they requested when they
hit throttling. This means that cpu limits no longer strictly apply per
period for non-cpu bound applications, but that they are still accurate
over longer timeframes.

This greatly improves performance of high-thread-count, non-cpu bound
applications with low cfs_quota_us allocation on high-core-count
machines. In the case of an artificial testcase (10ms/100ms of quota on
80 CPU machine), this commit resulted in almost 30x performance
improvement, while still maintaining correct cpu quota restrictions.
That testcase is available at https://github.com/indeedeng/fibtest.

Fixes: 512ac999d2 ("sched/fair: Fix bandwidth timer clock drift condition")
Signed-off-by: Dave Chiluk <chiluk+linux@indeed.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Phil Auld <pauld@redhat.com>
Reviewed-by: Ben Segall <bsegall@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: John Hammond <jhammond@indeed.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kyle Anderson <kwa@yelp.com>
Cc: Gabriel Munos <gmunoz@netflix.com>
Cc: Peter Oskolkov <posk@posk.io>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Brendan Gregg <bgregg@netflix.com>
Link: https://lkml.kernel.org/r/1563900266-19734-2-git-send-email-chiluk+linux@indeed.com
2019-08-08 09:09:30 +02:00
Song Hui
40b0bcd3e0 gpio: mpc8xxx: Add new platforms GPIO DT node description
Update the NXP GPIO node dt-binding file for QorIQ and
Layerscape platforms, and add one more example with
ls1028a GPIO node.

Signed-off-by: Song Hui <hui.song_1@nxp.com>
Link: https://lore.kernel.org/r/20190807021254.49092-1-hui.song_1@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-07 14:38:28 +02:00
Linus Torvalds
33920f1ec5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
 "Yeah I should have sent a pull request last week, so there is a lot
  more here than usual:

   1) Fix memory leak in ebtables compat code, from Wenwen Wang.

   2) Several kTLS bug fixes from Jakub Kicinski (circular close on
      disconnect etc.)

   3) Force slave speed check on link state recovery in bonding 802.3ad
      mode, from Thomas Falcon.

   4) Clear RX descriptor bits before assigning buffers to them in
      stmmac, from Jose Abreu.

   5) Several missing of_node_put() calls, mostly wrt. for_each_*() OF
      loops, from Nishka Dasgupta.

   6) Double kfree_skb() in peak_usb can driver, from Stephane Grosjean.

   7) Need to hold sock across skb->destructor invocation, from Cong
      Wang.

   8) IP header length needs to be validated in ipip tunnel xmit, from
      Haishuang Yan.

   9) Use after free in ip6 tunnel driver, also from Haishuang Yan.

  10) Do not use MSI interrupts on r8169 chips before RTL8168d, from
      Heiner Kallweit.

  11) Upon bridge device init failure, we need to delete the local fdb.
      From Nikolay Aleksandrov.

  12) Handle erros from of_get_mac_address() properly in stmmac, from
      Martin Blumenstingl.

  13) Handle concurrent rename vs. dump in netfilter ipset, from Jozsef
      Kadlecsik.

  14) Setting NETIF_F_LLTX on mac80211 causes complete breakage with
      some devices, so revert. From Johannes Berg.

  15) Fix deadlock in rxrpc, from David Howells.

  16) Fix Kconfig deps of enetc driver, we must have PHYLIB. From Yue
      Haibing.

  17) Fix mvpp2 crash on module removal, from Matteo Croce.

  18) Fix race in genphy_update_link, from Heiner Kallweit.

  19) bpf_xdp_adjust_head() stopped working with generic XDP when we
      fixes generic XDP to support stacked devices properly, fix from
      Jesper Dangaard Brouer.

  20) Unbalanced RCU locking in rt6_update_exception_stamp_rt(), from
      David Ahern.

  21) Several memory leaks in new sja1105 driver, from Vladimir Oltean"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (214 commits)
  net: dsa: sja1105: Fix memory leak on meta state machine error path
  net: dsa: sja1105: Fix memory leak on meta state machine normal path
  net: dsa: sja1105: Really fix panic on unregistering PTP clock
  net: dsa: sja1105: Use the LOCKEDS bit for SJA1105 E/T as well
  net: dsa: sja1105: Fix broken learning with vlan_filtering disabled
  net: dsa: qca8k: Add of_node_put() in qca8k_setup_mdio_bus()
  net: sched: sample: allow accessing psample_group with rtnl
  net: sched: police: allow accessing police->params with rtnl
  net: hisilicon: Fix dma_map_single failed on arm64
  net: hisilicon: fix hip04-xmit never return TX_BUSY
  net: hisilicon: make hip04_tx_reclaim non-reentrant
  tc-testing: updated vlan action tests with batch create/delete
  net sched: update vlan action for batched events operations
  net: stmmac: tc: Do not return a fragment entry
  net: stmmac: Fix issues when number of Queues >= 4
  net: stmmac: xgmac: Fix XGMAC selftests
  be2net: disable bh with spin_lock in be_process_mcc
  net: cxgb3_main: Fix a resource leak in a error path in 'init_one()'
  net: ethernet: sun4i-emac: Support phy-handle property for finding PHYs
  net: bridge: move default pvid init/deinit to NETDEV_REGISTER/UNREGISTER
  ...
2019-08-06 17:11:59 -07:00
Linus Torvalds
4368c4bc9d Merge branch 'x86/grand-schemozzle' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull pti updates from Thomas Gleixner:
 "The performance deterioration departement is not proud at all to
  present yet another set of speculation fences to mitigate the next
  chapter in the 'what could possibly go wrong' story.

  The new vulnerability belongs to the Spectre class and affects GS
  based data accesses and has therefore been dubbed 'Grand Schemozzle'
  for secret communication purposes. It's officially listed as
  CVE-2019-1125.

  Conditional branches in the entry paths which contain a SWAPGS
  instruction (interrupts and exceptions) can be mis-speculated which
  results in speculative accesses with a wrong GS base.

  This can happen on entry from user mode through a mis-speculated
  branch which takes the entry from kernel mode path and therefore does
  not execute the SWAPGS instruction. The following speculative accesses
  are done with user GS base.

  On entry from kernel mode the mis-speculated branch executes the
  SWAPGS instruction in the entry from user mode path which has the same
  effect that the following GS based accesses are done with user GS
  base.

  If there is a disclosure gadget available in these code paths the
  mis-speculated data access can be leaked through the usual side
  channels.

  The entry from user mode issue affects all CPUs which have speculative
  execution. The entry from kernel mode issue affects only Intel CPUs
  which can speculate through SWAPGS. On CPUs from other vendors SWAPGS
  has semantics which prevent that.

  SMAP migitates both problems but only when the CPU is not affected by
  the Meltdown vulnerability.

  The mitigation is to issue LFENCE instructions in the entry from
  kernel mode path for all affected CPUs and on the affected Intel CPUs
  also in the entry from user mode path unless PTI is enabled because
  the CR3 write is serializing.

  The fences are as usual enabled conditionally and can be completely
  disabled on the kernel command line. The Spectre V1 documentation is
  updated accordingly.

  A big "Thank You!" goes to Josh for doing the heavy lifting for this
  round of hardware misfeature 'repair'. Of course also "Thank You!" to
  everybody else who contributed in one way or the other"

* 'x86/grand-schemozzle' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation: Add swapgs description to the Spectre v1 documentation
  x86/speculation/swapgs: Exclude ATOMs from speculation through SWAPGS
  x86/entry/64: Use JMP instead of JMPQ
  x86/speculation: Enable Spectre v1 swapgs mitigations
  x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations
2019-08-06 11:22:22 -07:00
Colin Ian King
ac86250363 Input: docs: fix spelling mistake "potocol" -> "protocol"
There is a minor spelling mistake in the documentation, fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-06 11:24:49 -06:00
Luis Oliveira
e7ef681a8a dt-bindings: Document the DesignWare IP reset bindings
This adds documentation of device tree bindings for the
DesignWare IP reset controller.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Luis Oliveira <luis.oliveira@synopsys.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2019-08-06 15:28:30 +02:00
Steve French
108624eaff smb3: update TODO list of missing features
minor cleanup of documentation, updating to more current status.

Signed-off-by: Steve French <stfrench@microsoft.com>
2019-08-05 22:50:38 -05:00
Stephan Gerhold
b72160fa88 dt-bindings: qcom: Document bindings for new MSM8916 devices
Document the new samsung,a3u/a5u-eur and longcheer,l8150
device tree bindings used in their device trees.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-05 15:14:48 -07:00
Stephan Gerhold
3af1e2aa18 dt-bindings: vendor-prefixes: Add Longcheer Technology Co., Ltd.
Add the "longcheer" vendor prefix for Longcheer Technology Co., Ltd.,
an "industry-leading service provider of mobile phone design
and product delivery". (http://www.longcheer.com)

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-05 15:14:44 -07:00
Bjorn Andersson
9aebf4de22 base: soc: Add serial_number attribute to soc
Add new attribute named "serial_number" as a standard interface for
user space to acquire the serial number of the device.

For ST-Ericsson SoCs this is exposed by the cryptically named "soc_id"
attribute, but this provides a human readable standardized name for this
property.

Tested-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vaishali Thakkar <vaishali.thakkar@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-05 14:56:30 -07:00
Jakub Kicinski
5d92e631b8 net/tls: partially revert fix transition through disconnect with close
Looks like we were slightly overzealous with the shutdown()
cleanup. Even though the sock->sk_state can reach CLOSED again,
socket->state will not got back to SS_UNCONNECTED once
connections is ESTABLISHED. Meaning we will see EISCONN if
we try to reconnect, and EINVAL if we try to listen.

Only listen sockets can be shutdown() and reused, but since
ESTABLISHED sockets can never be re-connected() or used for
listen() we don't need to try to clean up the ULP state early.

Fixes: 32857cf57f ("net/tls: fix transition through disconnect with close")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-05 13:15:30 -07:00
Linus Torvalds
0eb0ce0a78 spi: Fixes for v5.3
A bunch of small, device specific things here plus a DT bindings fix for
 the new validatable YAML binding format.  The most notable thing is the
 fix for GPIO chip selects which fixes a corner case in updates of that
 code to modern APIs, unfortunately due to a historical mess the code
 around GPIO support is obscure, fragile and an ABI which makes and
 attempt to improve the situation painful.
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Merge tag 'spi-fix-v5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A bunch of small, device specific things here plus a DT bindings fix
  for the new validatable YAML binding format.

  The most notable thing is the fix for GPIO chip selects which fixes a
  corner case in updates of that code to modern APIs, unfortunately due
  to a historical mess the code around GPIO support is obscure, fragile
  and an ABI which makes and attempt to improve the situation painful"

* tag 'spi-fix-v5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: pxa2xx: Add support for Intel Tiger Lake
  spi: bcm2835: Fix 3-wire mode if DMA is enabled
  spi: pxa2xx: Balance runtime PM enable/disable on error
  spi: gpio: Add SPI_MASTER_GPIO_SS flag
  spi: spi-fsl-qspi: change i.MX7D RX FIFO size
  spi: dt-bindings: spi-controller: remove unnecessary 'maxItems: 1' from reg
2019-08-05 11:49:02 -07:00
Josh Poimboeuf
4c92057661 Documentation: Add swapgs description to the Spectre v1 documentation
Add documentation to the Spectre document about the new swapgs variant of
Spectre v1.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2019-08-03 21:21:54 +02:00
Sven Van Asbroeck
0008c1f3bc dt-bindings: bus: imx-weim: document optional burst clock mode
An optional devicetree property was added to the imx-weim driver,
which if present instructs it to operate in burst clock mode.
Update the dt-bindings to reflect this.

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 10:18:19 +02:00
Anson Huang
1e80936a42 dt-bindings: imx: Add clock binding doc for i.MX8MN
Add the clock binding doc for i.MX8MN.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:01 +02:00
Sven Schnelle
c8bbbc67cb parisc: Update feature list
Add jump labels to the list of supported features.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-03 08:56:57 +02:00
Sven Schnelle
52a22e6c27 parisc/ftrace: Add KPROBES_ON_FTRACE
Allow KPROBES to use the ftrace infrastructure on PA-RISC.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-03 08:56:57 +02:00
Joel Fernandes (Google)
0a5b99f578 treewide: Rename rcu_dereference_raw_notrace() to _check()
The rcu_dereference_raw_notrace() API name is confusing.  It is equivalent
to rcu_dereference_raw() except that it also does sparse pointer checking.

There are only a few users of rcu_dereference_raw_notrace(). This patches
renames all of them to be rcu_dereference_raw_check() with the "_check()"
indicating sparse checking.

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
[ paulmck: Fix checkpatch warnings about parentheses. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
2019-08-01 14:16:21 -07:00
Paul E. McKenney
0500873de9 doc: Add rcutree.kthread_prio pointer to stallwarn.txt
This commit adds mention of the rcutree.kthread_prio kernel boot parameter
to the discussion of how high-priority real-time tasks can result in
RCU CPU stall warnings.  (However, this does not necessarily help when
the high-priority real-time tasks are using dubious deadlines.)

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
2019-08-01 14:07:41 -07:00
Paul E. McKenney
cdc694b235 rcu: Add kernel parameter to dump trace after RCU CPU stall warning
This commit adds a rcu_cpu_stall_ftrace_dump kernel boot parameter, that,
when set, causes the trace buffer to be dumped after an RCU CPU stall
warning is printed.  This kernel boot parameter is disabled by default,
maintaining compatibility with previous behavior.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
2019-08-01 14:05:51 -07:00
Paul E. McKenney
1f3ebc8253 rcu: Restore barrier() to rcu_read_lock() and rcu_read_unlock()
Commit bb73c52bad ("rcu: Don't disable preemption for Tiny and Tree
RCU readers") removed the barrier() calls from rcu_read_lock() and
rcu_write_lock() in CONFIG_PREEMPT=n&&CONFIG_PREEMPT_COUNT=n kernels.
Within RCU, this commit was OK, but it failed to account for things like
get_user() that can pagefault and that can be reordered by the compiler.
Lack of the barrier() calls in rcu_read_lock() and rcu_read_unlock()
can cause these page faults to migrate into RCU read-side critical
sections, which in CONFIG_PREEMPT=n kernels could result in too-short
grace periods and arbitrary misbehavior.  Please see commit 386afc9114
("spinlocks and preemption points need to be at least compiler barriers")
and Linus's commit 66be4e66a7 ("rcu: locking and unlocking need to
always be at least barriers"), this last of which restores the barrier()
call to both rcu_read_lock() and rcu_read_unlock().

This commit removes barrier() calls that are no longer needed given that
the addition of them in Linus's commit noted above.  The combination of
this commit and Linus's commit effectively reverts commit bb73c52bad
("rcu: Don't disable preemption for Tiny and Tree RCU readers").

Reported-by: Herbert Xu <herbert@gondor.apana.org.au>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
[ paulmck: Fix embarrassing typo located by Alan Stern. ]
2019-08-01 14:05:51 -07:00
Anson Huang
e2557157a9 dt-bindings: reset: imx7: Add support for i.MX8MM
i.MX8MM can reuse i.MX8MQ's reset driver, update the compatible
property and related info to support i.MX8MM.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2019-08-01 10:49:07 +02:00
Mauro Carvalho Chehab
9195c3e8d5 docs: fs: porting.rst: fix a broken reference to another doc
With all those document shifts, references to documents get
broken.

Fix one such occurrence at porting.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 14:30:23 -06:00
Mauro Carvalho Chehab
e9bb627561 docs: w1: convert to ReST and add to the kAPI group of docs
The 1wire documentation was written with w1 developers in
mind, so, it makes sense to add it together with the driver-api
set.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 14:16:17 -06:00
Mauro Carvalho Chehab
f139291c71 docs: fs: cifs: convert to ReST and add to admin-guide book
The filenames for cifs documentation is not using the same
convention as almost all Kernel documents is using. So,
rename them to a more appropriate name. Then, manually convert
the documentation files for CIFS to ReST.

By doing a manual conversion, we can preserve the original
author's style, while making it to look more like the other
Kernel documents.

Most of the conversion here is trivial. The most complex one was
the README file (which was renamed to usage.rst).

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 14:13:42 -06:00
Mauro Carvalho Chehab
9cdd273e29 spi: docs: convert to ReST and add it to the kABI bookset
While there's one file there with briefily describes the uAPI,
the documentation was written just like most subsystems: focused
on kernel developers. So, add it together with driver-api books.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 14:13:13 -06:00
Mauro Carvalho Chehab
d2fd3732e4 docs: writing-schema.md: convert from markdown to ReST
The documentation standard is ReST and not markdown.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 14:12:57 -06:00
Mauro Carvalho Chehab
aa95b4a960 docs: fix a couple of new broken references
Those are due to recent changes. Most of the issues
can be automatically fixed with:

	$ ./scripts/documentation-file-ref-check --fix

The only exception was the sound binding with required
manual work.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 14:12:26 -06:00
Jarkko Sakkinen
2ef5a7f148 tpm: Document UEFI event log quirks
There are some weird quirks when it comes to UEFI event log. Provide a
brief introduction to TPM event log mechanism and describe the quirks
and how they can be sorted out.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:37:29 -06:00
Mauro Carvalho Chehab
e15d5a53ea docs: net: convert two README files to ReST format
There are two README files there with doesn't have a .txt
extension nor are at ReST format.

In order to help with the docs conversion to ReST, rename those
and manually convert them to ReST format.

As there are lot more to be done for networking to be part of
the documentation body, for now mark those two files with
:orphan:, in order to supress a build warning.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:31:56 -06:00
Mauro Carvalho Chehab
47359e5734 docs: nios2: add it to the main Documentation body
Rename and add the nios2 documentation to the documentation
body.

The nios2 document is already on an ReST compatible format.
All it needs is that the title of the document to be promoted
one level.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:31:51 -06:00
Mauro Carvalho Chehab
bfc8a222d3 docs: hwmon: pxe1610: convert to ReST format and add to the index
This document was recently introduced. Convert it to ReST
just like the other hwmon documents, adding it to the hwmon index.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:31:46 -06:00
Mauro Carvalho Chehab
80b1505893 docs: mips: add to the documentation body as ReST
Manually convert the AU1xxx_IDE.README file to ReST and add
to a MIPS book as part of the main documentation body.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:31:42 -06:00
Mauro Carvalho Chehab
ff497db295 docs: wimax: convert to ReST and add to admin-guide
Manually convert wimax documentation to ReST and add theit
to the Kernel doc body, inside the admin-guide.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:31:38 -06:00
Mauro Carvalho Chehab
9c970ab54c docs: index.rst: don't use genindex for pdf output
The genindex logic is meant to be used only for html output, as
pdf build has its own way to generate indexes.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org> # dmaengine and soundwire
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:31:16 -06:00
Mauro Carvalho Chehab
25b532cec5 docs: fs: convert porting to ReST
This file has its own proper style, except that, after a while,
the coding style gets violated and whitespaces are placed on
different ways.

As Sphinx and ReST are very sentitive to whitespace differences,
I had to opt if each entry after required/mandatory/... fields
should start with zero spaces or with a tab. I opted to start them
all from the zero position, in order to avoid needing to break lines
with more than 80 columns, with would make harder for review.

Most of the other changes at porting.rst were made to use an unified
notation with works nice as a text file while also produce a good html
output after being parsed.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:31:10 -06:00
Mauro Carvalho Chehab
ec23eb54fb docs: fs: convert docs without extension to ReST
There are 3 remaining files without an extension inside the fs docs
dir.

Manually convert them to ReST.

In the case of the nfs/exporting.rst file, as the nfs docs
aren't ported yet, I opted to convert and add a :orphan: there,
with should be removed when it gets added into a nfs-specific
part of the fs documentation.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:31:05 -06:00
Mauro Carvalho Chehab
5a5e045bb3 docs: isdn: convert to ReST and add to kAPI bookset
The ISDN documentation is a mix of admin guide, uAPI and kAPI.

Ideally, it should be split. Yet, not sure if it would worth
the troble. Anyway, we have the same kind of mix on several
drivers specific documentation. So, just like the others, keep
the directory at the root Documentation/ tree, just adding a
pointer to it at the kAPI section, as the documentation was
written with the Kernel developers in mind.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:30:25 -06:00
Mauro Carvalho Chehab
32fc3cd8ba docs: openrisc: convert to ReST and add to documentation body
Manually convert the two openRisc documents to ReST, adding them
to the Linux documentation body.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:30:20 -06:00
Mauro Carvalho Chehab
e77e9187ae docs: parisc: convert to ReST and add to documentation body
Manually convert the two PA-RISC documents to ReST, adding them
to the Linux documentation body.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:30:15 -06:00
Mauro Carvalho Chehab
6d6486a0c5 docs: README.buddha: convert to ReST and add to m68k book
Adjust the file for it to be properly parsed by Sphinx, adding
it to the index of the book it belongs.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:30:10 -06:00
Mauro Carvalho Chehab
76b5a6e842 docs: admin-guide: add auxdisplay files to it after conversion to ReST
Those two files describe userspace-faced information. While part of
it might fit on uAPI, it sounds to me that the admin guide is the
best place for them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:30:06 -06:00
Mauro Carvalho Chehab
1ec779b9fa docs: packing: move it to core-api book and adjust markups
The packing.txt file was misplaced, as docs should be part of
a documentation book, and not at the root dir.

So, move it to the core-api directory and add to its index.

Also, ensure that the file will be properly parsed and the bitmap
ascii artwork will use a monotonic font.

Fixes: 554aae3500 ("lib: Add support for generic packing operations")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Tested-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:30:01 -06:00
Mauro Carvalho Chehab
f6ae22d644 docs: ipmb: place it at driver-api and convert to ReST
No new doc should be added at the main Documentation/ directory.

Instead, new docs should be added as ReST files, within the
Kernel documentation body.

Fixes: 51bd6f2915 ("Add support for IPMB driver")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:29:55 -06:00
Mauro Carvalho Chehab
ccf988b66d docs: i2c: convert to ReST and add to driver-api bookset
Convert each file at I2C subsystem, renaming them to .rst and
adding to the driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:25:27 -06:00
Mauro Carvalho Chehab
09f4c750a8 docs: ubifs-authentication.md: convert to ReST
The documentation standard is ReST and not markdown.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:25:22 -06:00
Mauro Carvalho Chehab
eaf7b46083 docs: thermal: add it to the driver API
The file contents mostly describes driver internals.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:25:15 -06:00
Phong Tran
fe13225fdc Documentation: coresight: convert txt to rst
This changes from plain text to reStructuredText as suggestion
in doc-guide [1]

[1] https://www.kernel.org/doc/html/latest/doc-guide/sphinx.html

Some adaptations such as: literal block, ``inline literal`` and
alignment text,...

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:13:45 -06:00
Shobhit Kukreti
34d5f4f269 Documentation: filesystems: Convert ufs.txt to reStructuredText format
This converts the plain text documentation of ufs.txt to
reStructuredText format. Added to documentation build process
and verified with make htmldocs

Signed-off-by: Shobhit Kukreti <shobhitkukreti@gmail.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:09:55 -06:00
Shobhit Kukreti
ac841c4e45 Documentation: filesystems: Convert jfs.txt to
This converts the plain text documentation of jfs.txt to reStructuredText
format. Added to documentation build process and verified with
make htmldocs

Signed-off-by: Shobhit Kukreti <shobhitkukreti@gmail.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:09:14 -06:00
Federico Vaga
e226b4f0e0 doc: email-clients miscellaneous fixes
Fixed some style inconsistencies and remove old statement referring to
kmail missing feature (saving email from the view window is possible).

Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:05:37 -06:00
Mauro Carvalho Chehab
638b642f82 docs: riscv: convert boot-image-header.txt to ReST
Convert this small file to ReST format by:
   - Using a proper markup for the document title;
   - marking a code block as such;
   - use tags for Author and date;
   - use tables for bit map fields.

While here, fix a broken reference for a document with is
planned but is not here yet.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 13:01:47 -06:00
Mauro Carvalho Chehab
54bfe6feba docs: zh_CN: howto.rst: fix a broken reference
There's a broken reference there pointing to the long gone
DocBook dir.

While I don't read chinese, Google translator translates it
to:
	"The generated documentation will be placed in
	 the Documentation/DocBook/ directory."

Well, we know that the output will be Documentation/output
dir. So, let's fix this one.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 12:54:48 -06:00
Mauro Carvalho Chehab
23aa16489c docs: cgroup-v1/blkio-controller.rst: remove a CFQ left over
changeset fb5772cbfe ("blkio-controller.txt: Remove references to CFQ")
removed cgroup references to CFQ, but it kept one left. Get rid of
it.

Fixes: fb5772cbfe ("blkio-controller.txt: Remove references to CFQ")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 12:54:39 -06:00
Federico Vaga
803deeaaea doc:it_IT: align translation to mainline
The patch translates the following patches in Italian:

1fb12b35e5 kbuild: Raise the minimum required binutils version to 2.21
9c3c0c2048 isdn: remove isdn4linux

Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 12:46:05 -06:00
Geert Uytterhoeven
257e26c640 docs: arm: Remove orphan sh-mobile directory
This directory is empty, except for a .gitignore file, listing an
executable file that can no longer be built since commit
c6535e1e03 ("Documentation: Remove ZBOOT MMC/SDHI utility and
docs").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 12:41:27 -06:00
Andy Shevchenko
c6e0396124 coda: Fix typo in the struct CodaCred documentation
Documentation mistakenly refers to a different type while explaining
the contents of the struct CodaCred.

Fix the typo in the struct CodaCred description in the documentation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-30 14:19:41 -06:00
Sheriff Esseson
38a449ff53 Documentation: filesystem: fix "Removed Sysctls" table
the "Removed Sysctls" section is a table - bring it alive with ReST.

Signed-off-by: Sheriff Esseson <sheriffesseson@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-30 14:18:43 -06:00
Mark Rutland
da422ade5c Documentation/features/locking: update lists
The locking feature lists don't match reality as of v5.3-rc1:

* arm64 moved to queued spinlocks in commit:
  c11090474d
  ("arm64: locking: Replace ticket lock implementation with qspinlock")

* xtensa moved to queued spinlocks and rwlocks in commit:
  579afe866f
  ("xtensa: use generic spinlock/rwlock implementation")

* architecture-specific rwsem support was removed in commit:
  46ad0840b1
  ("locking/rwsem: Remove arch specific rwsem files")

So update the feature lists accordingly, and remove the now redundant
rwsem-optimized list.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-30 14:18:43 -06:00
Linus Torvalds
515f12b9ee HMM patches for 5.3-rc
Fix the locking around nouveau's use of the hmm_range_* APIs. It works
 correctly in the success case, but many of the the edge cases have missing
 unlocks or double unlocks.
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Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull HMM fixes from Jason Gunthorpe:
 "Fix the locking around nouveau's use of the hmm_range_* APIs. It works
  correctly in the success case, but many of the the edge cases have
  missing unlocks or double unlocks.

  The diffstat is a bit big as Christoph did a comprehensive job to move
  the obsolete API from the core header and into the driver before
  fixing its flow, but the risk of regression from this code motion is
  low"

* tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  nouveau: unlock mmap_sem on all errors from nouveau_range_fault
  nouveau: remove the block parameter to nouveau_range_fault
  mm/hmm: move hmm_vma_range_done and hmm_vma_fault to nouveau
  mm/hmm: always return EBUSY for invalid ranges in hmm_range_{fault,snapshot}
2019-07-30 12:54:44 -07:00
Rob Herring
740ce365a4 dt-bindings: Fix generated example files getting added to schemas
Commit 837158b847 ("dt-bindings: Check the examples against the
schemas") started generating YAML encoded DT files to validate the
examples against the schema. When running 'make dt_binding_check' in
tree after the 1st time, the generated example .dt.yaml files are
mistakenly added to the list of schema files. Exclude *.example.dt.yaml
files from the search for schema files.

Fixes: 837158b847 ("dt-bindings: Check the examples against the schemas")
Reported-by: Guido Günther <agx@sigxcpu.org>
Tested-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-30 13:09:57 -06:00
Jeremy Cline
d9e5ebac18 Documentation: gpio: fix function links in the HTML docs
The shorthand [_data] and [devm_] cause the HTML documentation to not
link to the function documentation properly. This expands the references
to the complete function names with the exception of
devm_gpiochip_remove() which was dropped by commit 48207d7595 ("gpio:
drop devm_gpiochip_remove()").

Signed-off-by: Jeremy Cline <jcline@redhat.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-07-30 10:16:32 +02:00
Fabrizio Castro
8cb7ec1418 dt-bindings: can: rcar_can: Complete documentation for RZ/G2[EM]
Add missing RZ/G2[EM] CANFD clock specific documentation.

Fixes: 868b7c0f43 ("dt-bindings: can: rcar_can: Add r8a774a1 support")
Fixes: d703a52eb1 ("dt-bindings: can: rcar_can: Add r8a774c0 support")
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-07-29 15:36:39 +02:00
Fabrizio Castro
a7aa356e2c dt-bindings: can: rcar_canfd: document r8a774a1 support
Document the support for rcar_canfd on R8A774A1 SoC devices.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-07-29 15:36:39 +02:00
Thomas Gleixner
7a30bdd99f Merge branch master from git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Pick up the spectre documentation so the Grand Schemozzle can be added.
2019-07-28 22:22:40 +02:00
Linus Torvalds
29af915cab USB fixes for 5.3-rc2
Here are some small fixes for 5.3-rc2.  All of these resolve some
 reported issues, some more than others :)
 
 Included in here is:
 	- xhci fix for an annoying issue with odd devices
 	- reversion of some usb251xb patches that should not have been
 	  merged
 	- usb pci quirk additions and fixups
 	- usb storage fix
 	- usb host controller error test fix
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small fixes for 5.3-rc2. All of these resolve some
  reported issues, some more than others :)

  Included in here is:

   - xhci fix for an annoying issue with odd devices

   - reversion of some usb251xb patches that should not have been merged

   - usb pci quirk additions and fixups

   - usb storage fix

   - usb host controller error test fix

  All of these have been in linux-next with no reported issues"

* tag 'usb-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  xhci: Fix crash if scatter gather is used with Immediate Data Transfer (IDT).
  usb: usb251xb: Reallow swap-dx-lanes to apply to the upstream port
  Revert "usb: usb251xb: Add US port lanes inversion property"
  Revert "usb: usb251xb: Add US lanes inversion dts-bindings"
  usb: wusbcore: fix unbalanced get/put cluster_id
  usb/hcd: Fix a NULL vs IS_ERR() bug in usb_hcd_setup_local_mem()
  usb-storage: Add a limitation for blk_queue_max_hw_sectors()
  usb: pci-quirks: Minor cleanup for AMD PLL quirk
  usb: pci-quirks: Correct AMD PLL quirk detection
2019-07-28 09:52:35 -07:00
Linus Torvalds
88c5083442 Wimplicit-fallthrough patches for 5.3-rc2
Hi Linus,
 
 Please, pull the following patches that mark switch cases where we are
 expecting to fall through. These patches are part of the ongoing efforts
 to enable -Wimplicit-fallthrough. Most of them have been baking in linux-next
 for a whole development cycle.
 
 Also, pull the Makefile patch that globally enables the
 -Wimplicit-fallthrough option.
 
 Finally, some missing-break fixes that have been tagged for -stable:
 
  - drm/amdkfd: Fix missing break in switch statement
  - drm/amdgpu/gfx10: Fix missing break in switch statement
 
 Notice that with these changes, we completely get rid of all the
 fall-through warnings in the kernel.
 
 Thanks
 
 Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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Merge tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull Wimplicit-fallthrough enablement from Gustavo A. R. Silva:
 "This marks switch cases where we are expecting to fall through, and
  globally enables the -Wimplicit-fallthrough option in the main
  Makefile.

  Finally, some missing-break fixes that have been tagged for -stable:

   - drm/amdkfd: Fix missing break in switch statement

   - drm/amdgpu/gfx10: Fix missing break in switch statement

  With these changes, we completely get rid of all the fall-through
  warnings in the kernel"

* tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  Makefile: Globally enable fall-through warning
  drm/i915: Mark expected switch fall-throughs
  drm/amd/display: Mark expected switch fall-throughs
  drm/amdkfd/kfd_mqd_manager_v10: Avoid fall-through warning
  drm/amdgpu/gfx10: Fix missing break in switch statement
  drm/amdkfd: Fix missing break in switch statement
  perf/x86/intel: Mark expected switch fall-throughs
  mtd: onenand_base: Mark expected switch fall-through
  afs: fsclient: Mark expected switch fall-throughs
  afs: yfsclient: Mark expected switch fall-throughs
  can: mark expected switch fall-throughs
  firewire: mark expected switch fall-throughs
2019-07-27 11:04:18 -07:00
Linus Torvalds
43e317c1bb s390 updates for 5.3-rc2
- Add ABI to kernel image file which allows e.g. the file utility to figure
    out the kernel version.
 
  - Wire up clone3 system call.
 
  - Add support for kasan bitops instrumentation.
 
  - uapi header cleanup: use __u{16,32,64} instead of uint{16,32,64}_t.
 
  - Provide proper ARCH_ZONE_DMA_BITS so the s390 DMA zone is correctly defined
    with 2 GB instead of the default value of 1 MB.
 
  - Farhan Ali leaves the group of vfio-ccw maintainers.
 
  - Various small vfio-ccw fixes.
 
  - Add missing locking for airq_areas array in virtio code.
 
  - Minor qdio improvements.
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Merge tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Add ABI to kernel image file which allows e.g. the file utility to
   figure out the kernel version.

 - Wire up clone3 system call.

 - Add support for kasan bitops instrumentation.

 - uapi header cleanup: use __u{16,32,64} instead of uint{16,32,64}_t.

 - Provide proper ARCH_ZONE_DMA_BITS so the s390 DMA zone is correctly
   defined with 2 GB instead of the default value of 1 MB.

 - Farhan Ali leaves the group of vfio-ccw maintainers.

 - Various small vfio-ccw fixes.

 - Add missing locking for airq_areas array in virtio code.

 - Minor qdio improvements.

* tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  MAINTAINERS: vfio-ccw: Remove myself as the maintainer
  s390/mm: use shared variables for sysctl range check
  virtio/s390: fix race on airq_areas[]
  s390/dma: provide proper ARCH_ZONE_DMA_BITS value
  s390/kasan: add bitops instrumentation
  s390/bitops: make test functions return bool
  s390: wire up clone3 system call
  kbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test
  s390: use __u{16,32,64} instead of uint{16,32,64}_t in uapi header
  s390/hypfs: fix a typo in the name of a function
  s390/qdio: restrict QAOB usage to IQD unicast queues
  s390/qdio: add sanity checks to the fast-requeue path
  s390: enable detection of kernel version from bzImage
  Documentation: fix vfio-ccw doc
  vfio-ccw: Update documentation for csch/hsch
  vfio-ccw: Don't call cp_free if we are processing a channel program
  vfio-ccw: Set pa_nr to 0 if memory allocation fails for pa_iova_pfn
  vfio-ccw: Fix memory leak and don't call cp_free in cp_init
  vfio-ccw: Fix misleading comment when setting orb.cmd.c64
2019-07-27 08:58:04 -07:00
Linus Torvalds
5efbd93708 Devicetree fixes for 5.3-rc:
- Fix mismatches in $id values and actual filenames. Now checked by
   tools.
 
 - Convert nvmem binding to DT schema
 
 - Fix a typo in of_property_read_bool() kerneldoc
 
 - Remove some redundant description in al-fic interrupt-controller
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Merge tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree fixes from Rob Herring:
 "The nvmem changes would typically go thru Greg's tree, but they were
  missed in the merge window. [ Acked by Greg ]

  Summary:

   - Fix mismatches in $id values and actual filenames. Now checked by
     tools.

   - Convert nvmem binding to DT schema

   - Fix a typo in of_property_read_bool() kerneldoc

   - Remove some redundant description in al-fic interrupt-controller"

* tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: Fix more $id value mismatches filenames
  dt-bindings: nvmem: SID: Fix the examples node names
  dt-bindings: nvmem: Add YAML schemas for the generic NVMEM bindings
  of: Fix typo in kerneldoc
  dt-bindings: interrupt-controller: al-fic: remove redundant binding
  dt-bindings: clk: allwinner,sun4i-a10-ccu: Correct path in $id
2019-07-27 08:49:19 -07:00
Rob Herring
e1ff7390f5 dt-bindings: Fix more $id value mismatches filenames
The path in the schema '$id' values are wrong. Fix them.

Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-26 17:41:41 -06:00
Maxime Ripard
ce842e73bc dt-bindings: nvmem: SID: Fix the examples node names
Now that the examples are validated, the examples in the SID binding
generates an error since the node names aren't one of the valid ones.

Let's switch for one that is ok.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-26 17:40:40 -06:00
Maxime Ripard
c61f025696 dt-bindings: nvmem: Add YAML schemas for the generic NVMEM bindings
The nvmem providers and consumers have a bunch of generic properties that
are needed in a device tree. Add a YAML schemas for those.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[Srini: Changed licence to (GPL-2.0 OR BSD-2-Clause)]
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-26 17:05:14 -06:00
David S. Miller
0a062ba725 mlx5-fixes-2019-07-25
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Merge tag 'mlx5-fixes-2019-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
Mellanox, mlx5 fixes 2019-07-25

This series introduces some fixes to mlx5 driver.

1) Ariel is addressing an issue with enacp flow counter race condition
2) Aya fixes ethtool speed handling
3) Edward fixes modify_cq hw bits alignment
4) Maor fixes RDMA_RX capabilities handling
5) Mark reverses unregister devices order to address an issue with LAG
6) From Tariq,
  - wrong max num channels indication regression
  - TLS counters naming and documentation as suggested by Jakub
  - kTLS, Call WARN_ONCE on netdev mismatch

There is one patch in this series that touches nfp driver to align
TLS statistics names with latest documentation, Jakub is CC'ed.

Please pull and let me know if there is any problem.

For -stable v4.9:
  ('net/mlx5: Use reversed order when unregister devices')

For -stable v4.20
  ('net/mlx5e: Prevent encap flow counter update async to user query')
  ('net/mlx5: Fix modify_cq_in alignment')

For -stable v5.1
  ('net/mlx5e: Fix matching of speed to PRM link modes')

For -stable v5.2
  ('net/mlx5: Add missing RDMA_RX capabilities')
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-26 14:26:41 -07:00
Linus Torvalds
3ea54d9b0d This is mostly a set of follow-on fixes from Mauro fixing various fallout
from the massive RST conversion; a few other small fixes as well.
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Merge tag 'docs-5.3-1' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "This is mostly a set of follow-on fixes from Mauro fixing various
  fallout from the massive RST conversion; a few other small fixes as
  well"

* tag 'docs-5.3-1' of git://git.lwn.net/linux: (21 commits)
  docs: phy: Drop duplicate 'be made'
  doc:it_IT: translations in process/
  docs/vm: transhuge: fix typo in madvise reference
  doc:it_IT: rephrase statement
  doc:it_IT: align translation to mainline
  docs: load_config.py: ensure subdirs end with "/"
  docs: virtual: add it to the documentation body
  docs: remove extra conf.py files
  docs: load_config.py: avoid needing a conf.py just due to LaTeX docs
  scripts/sphinx-pre-install: seek for Noto CJK fonts for pdf output
  scripts/sphinx-pre-install: cleanup Gentoo checks
  scripts/sphinx-pre-install: fix latexmk dependencies
  scripts/sphinx-pre-install: don't use LaTeX with CentOS 7
  scripts/sphinx-pre-install: fix script for RHEL/CentOS
  docs: conf.py: only use CJK if the font is available
  docs: conf.py: add CJK package needed by translations
  docs: pdf: add all Documentation/*/index.rst to PDF output
  docs: fix broken doc references due to renames
  docs: power: add it to to the main documentation index
  docs: powerpc: convert docs to ReST and rename to *.rst
  ...
2019-07-26 11:29:24 -07:00
Linus Torvalds
6108cd475c Couple of hwmon bug fixes
Update k8temp documentation URL
 Register address fixes in nct6775 driver
 Fix potential division by zero in occ driver
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Merge tag 'hwmon-for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "A couple of hwmon bug fixes:

   - Update k8temp documentation URL

   - Register address fixes in nct6775 driver

   - Fix potential division by zero in occ driver"

* tag 'hwmon-for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (k8temp) documentation: update URL of datasheet
  hwmon: (nct6775) Fix register address and added missed tolerance for nct6106
  hwmon: (occ) Fix division by zero issue
2019-07-26 09:36:01 -07:00
Guido Günther
d2eba640a4 docs: phy: Drop duplicate 'be made'
Fix duplicate words.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-26 08:15:26 -06:00
Baolin Wang
70f69f481b
spi: sprd: Change the hwlock support to be optional
No need to add hardware spinlock proctection due to add multiple
msater channel, so change it to be optional in documentation.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Link: https://lore.kernel.org/r/23d51f5d9c9cc647ad0c5a1fb950d3d9fb9c1303.1564125131.git.baolin.wang@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-07-26 12:28:45 +01:00
Gustavo A. R. Silva
a035d552a9 Makefile: Globally enable fall-through warning
Now that all the fall-through warnings have been addressed in the
kernel, enable the fall-through warning globally.

Also, update the deprecated.rst file to include implicit fall-through
as 'deprecated' so people can be pointed to a single location for
justification.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-07-25 20:13:54 -05:00
David S. Miller
28ba934d28 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:

====================
pull-request: bpf 2019-07-25

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) fix segfault in libbpf, from Andrii.

2) fix gso_segs access, from Eric.

3) tls/sockmap fixes, from Jakub and John.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 17:35:03 -07:00
Matthias Kaehlcke
c6855f7bb6 dt-bindings: ARM: dts: rockchip: Add bindings for rk3288-veyron-{fievel,tiger}
Fievel is a Chromebox and Tiger a Chromebase with a 10" display and
touchscreen. Tiger and Fievel are based on the same board.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-07-25 22:49:54 +02:00
Tariq Toukan
280c089916 Documentation: TLS: fix stat counters description
Add missing description of counters.
Split tx_tls_encrypted counter into two, to give packets
and bytes indications.

Fixes: f42c104f2e ("Documentation: add TLS offload documentation")
Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-25 13:31:01 -07:00
Christoph Hellwig
2bcbeaefde mm/hmm: always return EBUSY for invalid ranges in hmm_range_{fault,snapshot}
We should not have two different error codes for the same
condition. EAGAIN must be reserved for the FAULT_FLAG_ALLOW_RETRY retry
case and signals to the caller that the mmap_sem has been unlocked.

Use EBUSY for the !valid case so that callers can get the locking right.

Link: https://lore.kernel.org/r/20190724065258.16603-2-hch@lst.de
Tested-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
[jgg: elaborated commit message]
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-07-25 16:14:39 -03:00
Lucas Stach
bafe64e5f0 Revert "usb: usb251xb: Add US lanes inversion dts-bindings"
This reverts commit 3342ce35a1, as there is no need for this separate
property and it breaks compatibility with existing devicetree files
(arch/arm64/boot/dts/freescale/imx8mq.dtsi).

CC: stable@vger.kernel.org #5.2
Fixes: 3342ce35a1 ("usb: usb251xb: Add US lanes inversion dts-bindings")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20190719084407.28041-1-l.stach@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-25 11:16:19 +02:00
Talel Shenhar
50ce73cfbb dt-bindings: interrupt-controller: al-fic: remove redundant binding
Remove dt binding description for standard binding.

Signed-off-by: Talel Shenhar <talel@amazon.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-24 14:36:16 -06:00
Linus Torvalds
7626077457 Bugfixes, and a pvspinlock optimization
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "Bugfixes, a pvspinlock optimization, and documentation moving"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: X86: Boost queue head vCPU to mitigate lock waiter preemption
  Documentation: move Documentation/virtual to Documentation/virt
  KVM: nVMX: Set cached_vmcs12 and cached_shadow_vmcs12 NULL after free
  KVM: X86: Dynamically allocate user_fpu
  KVM: X86: Fix fpu state crash in kvm guest
  Revert "kvm: x86: Use task structs fpu field for user"
  KVM: nVMX: Clear pending KVM_REQ_GET_VMCS12_PAGES when leaving nested
2019-07-24 09:46:13 -07:00
Rob Herring
c7842d1080 dt-bindings: clk: allwinner,sun4i-a10-ccu: Correct path in $id
The path in the schema '$id' value is wrong. Fix it.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: linux-clk@vger.kernel.org
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-24 08:45:52 -06:00
Christoph Hellwig
2f5947dfca Documentation: move Documentation/virtual to Documentation/virt
Renaming docs seems to be en vogue at the moment, so fix on of the
grossly misnamed directories.  We usually never use "virtual" as
a shortcut for virtualization in the kernel, but always virt,
as seen in the virt/ top-level directory.  Fix up the documentation
to match that.

Fixes: ed16648eb5 ("Move kvm, uml, and lguest subdirectories under a common "virtual" directory, I.E:")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-07-24 10:52:11 +02:00
Heiko Carstens
eed3419760 Fixes in vfio-ccw for older and newer issues.
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Merge tag 'vfio-ccw-20190717-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw into fixes

Fixes in vfio-ccw for older and newer issues.
2019-07-23 10:44:28 +02:00
Andra Danciu
1a47dc0240 dt-bindings: arm: fsl: Add the pico-pi-imx8m board
Add an entry for TechNexion PICO-PI-IMX8M board based on i.MX8MQ SoC
Datasheet can be found at:
https://s3.us-east-2.amazonaws.com/technexion/datasheets/picopiimx8m.pdf

Cc: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Andra Danciu <andradanciu1997@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-07-23 16:30:55 +08:00
Manivannan Sadhasivam
c39eff747b dt-bindings: arm: Document i.MX8QXP AI_ML board binding
Document devicetree binding of i.MX8QXP AI_ML board from Einfochips.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-07-23 16:30:55 +08:00
Manivannan Sadhasivam
417393a507 dt-bindings: Add Vendor prefix for Einfochips
Add devicetree vendor prefix for Einfochips.
https://www.einfochips.com/

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-07-23 16:30:55 +08:00
Pramod Kumar
88574a24ea dt-bindings: arm: nxp: Add device tree binding for ls1046a-frwy board
Add "fsl,ls1046a-frwy" bindings for ls1046afrwy board based on ls1046a SoC

Signed-off-by: Vabhav Sharma <vabhav.sharma@nxp.com>
Signed-off-by: Pramod Kumar <pramod.kumar_1@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-07-23 16:30:54 +08:00
Fugang Duan
1843f22562 dt-bindings: serial: lpuart: add the clock requirement for imx8qxp
Add the baud clock requirement for imx8qxp.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-07-23 10:46:06 +08:00
Federico Vaga
2b607f7088 doc:it_IT: translations in process/
This patch add translations for:

- programming-languages
- kernel-docs (It is better to not translate this since English is
a requirement to get something useful out of it)

Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-22 14:47:02 -06:00
Jeremy Cline
74af0d0be1 docs/vm: transhuge: fix typo in madvise reference
Fix an off-by-one typo in the transparent huge pages admin
documentation.

Signed-off-by: Jeremy Cline <jcline@redhat.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-22 14:45:12 -06:00
Jonathan Corbet
48ffc3d12b Merge branch 'pdf_fixes_v1' of https://git.linuxtv.org/mchehab/experimental into mauro
Bring in a set of post-thrashup fixes from Mauro.
2019-07-22 13:51:20 -06:00
Federico Vaga
143134ba49 doc:it_IT: rephrase statement
The statement sounds more like a literal translation

Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-22 13:44:31 -06:00
Federico Vaga
5adcce34f8 doc:it_IT: align translation to mainline
The patch translates the following patches in Italian:

d9d7c0c497 docs: Note that :c:func: should no longer be used
83e8b971f8 sphinx.rst: Add note about code snippets embedded in the text
cca5e0b8a4 Documentation: PGP: update for newer HW devices

Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-22 13:44:17 -06:00
Jonathan Corbet
e27a24210a Linus 5.3-rc1
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Merge tag 'v5.3-rc1' into docs-next

Pull in all of the massive docs changes from elsewhere.
2019-07-22 13:42:10 -06:00
Atish Patra
124e46a865 dt-binding: cpu-topology: Move cpu-map to a common binding.
cpu-map binding can be used to described cpu topology for both
RISC-V & ARM. It makes more sense to move the binding to document
to a common place.

The relevant discussion can be found here.
https://lkml.org/lkml/2018/11/6/19

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-07-22 09:35:57 -07:00
Sudeep Holla
849b384f92 Documentation: DT: arm: add support for sockets defining package boundaries
The current ARM DT topology description provides the operating system
with a topological view of the system that is based on leaf nodes
representing either cores or threads (in an SMT system) and a
hierarchical set of cluster nodes that creates a hierarchical topology
view of how those cores and threads are grouped.

However this hierarchical representation of clusters does not allow to
describe what topology level actually represents the physical package or
the socket boundary, which is a key piece of information to be used by
an operating system to optimize resource allocation and scheduling.

Lets add a new "socket" node type in the cpu-map node to describe the
same.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-07-22 09:17:07 -07:00
John Fastabend
32857cf57f net/tls: fix transition through disconnect with close
It is possible (via shutdown()) for TCP socks to go through TCP_CLOSE
state via tcp_disconnect() without actually calling tcp_close which
would then call the tls close callback. Because of this a user could
disconnect a socket then put it in a LISTEN state which would break
our assumptions about sockets always being ESTABLISHED state.

More directly because close() can call unhash() and unhash is
implemented by sockmap if a sockmap socket has TLS enabled we can
incorrectly destroy the psock from unhash() and then call its close
handler again. But because the psock (sockmap socket representation)
is already destroyed we call close handler in sk->prot. However,
in some cases (TLS BASE/BASE case) this will still point at the
sockmap close handler resulting in a circular call and crash reported
by syzbot.

To fix both above issues implement the unhash() routine for TLS.

v4:
 - add note about tls offload still needing the fix;
 - move sk_proto to the cold cache line;
 - split TX context free into "release" and "free",
   otherwise the GC work itself is in already freed
   memory;
 - more TX before RX for consistency;
 - reuse tls_ctx_free();
 - schedule the GC work after we're done with context
   to avoid UAF;
 - don't set the unhash in all modes, all modes "inherit"
   TLS_BASE's callbacks anyway;
 - disable the unhash hook for TLS_HW.

Fixes: 3c4d755915 ("tls: kernel TLS support")
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-07-22 16:04:17 +02:00
Olof Johansson
deb0df1a99 NXP/FSL SoC driver updates for v5.3 (take 2)
DPAA2 Console driver
 - Add driver to export two char devices to dump logs for MC and
   AIOP
 
 DPAA2 DPIO driver
 - Add support for memory backed QBMan portals
 - Increase the timeout period to prevent false error
 - Add APIs to retrieve QBMan portal probing status
 
 DPAA Qman driver
 - Only make liodn fixup on powerpc SoCs with PAMU iommu
 
 QUICC Engine
 - Add support for importing qe-snums through device tree
 - Some cleanups and foot print optimzation
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Merge tag 'soc-fsl-next-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.3 (take 2)

DPAA2 Console driver
- Add driver to export two char devices to dump logs for MC and
  AIOP

DPAA2 DPIO driver
- Add support for memory backed QBMan portals
- Increase the timeout period to prevent false error
- Add APIs to retrieve QBMan portal probing status

DPAA Qman driver
- Only make liodn fixup on powerpc SoCs with PAMU iommu

QUICC Engine
- Add support for importing qe-snums through device tree
- Some cleanups and foot print optimzation

* tag 'soc-fsl-next-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: qe: fold qe_get_num_of_snums into qe_snums_init
  soc: fsl: qe: support fsl,qe-snums property
  dt-bindings: soc: fsl: qe: document new fsl,qe-snums binding
  soc: fsl: qe: introduce qe_get_device_node helper
  soc: fsl: qe: reduce static memory footprint by 1.7K
  soc: fsl: qe: drop useless static qualifier
  soc: fsl: fix spelling mistake "Firmaware" -> "Firmware"

Link: https://lore.kernel.org/r/20190605194511.12127-1-leoyang.li@nxp.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-07-21 20:04:02 -07:00
Robert Karszniewicz
223b2b5030 hwmon: (k8temp) documentation: update URL of datasheet
The old URL is dead.

Signed-off-by: Robert Karszniewicz <avoidr@firemail.cc>
Link: https://lore.kernel.org/r/7139bc7707c24bd4dd7eb323e2da90105a3de9c1.1563522498.git.avoidr@firemail.cc
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-21 19:18:45 -07:00
Andrey Smirnov
849b7e3bb2 dt-bindings: arm: fsl: Add support for ZII i.MX7 RMU2 board
Add support for ZII i.MX7 RMU2 board.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Bob Langer <Bob.Langer@zii.aero>
Cc: Liang Pan <Liang.Pan@zii.aero>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-07-22 09:31:31 +08:00
Linus Torvalds
c7bf0a0f37 Devicetree fixes for 5.3:
Fix several warnings/errors in validation of binding schemas.
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Merge tag 'devicetree-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree fixes from Rob Herring:
 "Fix several warnings/errors in validation of binding schemas"

* tag 'devicetree-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: pinctrl: stm32: Fix missing 'clocks' property in examples
  dt-bindings: iio: ad7124: Fix dtc warnings in example
  dt-bindings: iio: avia-hx711: Fix avdd-supply typo in example
  dt-bindings: pinctrl: aspeed: Fix AST2500 example errors
  dt-bindings: pinctrl: aspeed: Fix 'compatible' schema errors
  dt-bindings: riscv: Limit cpus schema to only check RiscV 'cpu' nodes
  dt-bindings: Ensure child nodes are of type 'object'
2019-07-21 10:28:39 -07:00
Linus Torvalds
d6788eb7d0 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs documentation typo fix from Al Viro.

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  typo fix: it's d_make_root, not d_make_inode...
2019-07-21 10:09:43 -07:00
Linus Torvalds
bec5545ede New feature to add support for NTB virtual MSI interrupts, the ability
to test and use this feature in the NTB transport layer.  Also, bug
 fixes for the AMD and Switchtec drivers, as well as some general
 patches.
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Merge tag 'ntb-5.3' of git://github.com/jonmason/ntb

Pull NTB updates from Jon Mason:
 "New feature to add support for NTB virtual MSI interrupts, the ability
  to test and use this feature in the NTB transport layer.

  Also, bug fixes for the AMD and Switchtec drivers, as well as some
  general patches"

* tag 'ntb-5.3' of git://github.com/jonmason/ntb: (22 commits)
  NTB: Describe the ntb_msi_test client in the documentation.
  NTB: Add MSI interrupt support to ntb_transport
  NTB: Add ntb_msi_test support to ntb_test
  NTB: Introduce NTB MSI Test Client
  NTB: Introduce MSI library
  NTB: Rename ntb.c to support multiple source files in the module
  NTB: Introduce functions to calculate multi-port resource index
  NTB: Introduce helper functions to calculate logical port number
  PCI/switchtec: Add module parameter to request more interrupts
  PCI/MSI: Support allocating virtual MSI interrupts
  ntb_hw_switchtec: Fix setup MW with failure bug
  ntb_hw_switchtec: Skip unnecessary re-setup of shared memory window for crosslink case
  ntb_hw_switchtec: Remove redundant steps of switchtec_ntb_reinit_peer() function
  NTB: correct ntb_dev_ops and ntb_dev comment typos
  NTB: amd: Silence shift wrapping warning in amd_ntb_db_vector_mask()
  ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()
  NTB: ntb_transport: Ensure qp->tx_mw_dma_addr is initaliazed
  NTB: ntb_hw_amd: set peer limit register
  NTB: ntb_perf: Clear stale values in doorbell and command SPAD register
  NTB: ntb_perf: Disable NTB link after clearing peer XLAT registers
  ...
2019-07-21 09:46:59 -07:00
Al Viro
1b03bc5c11 typo fix: it's d_make_root, not d_make_inode...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-07-20 23:17:30 -04:00
Rob Herring
e2297f7c3a dt-bindings: pinctrl: stm32: Fix missing 'clocks' property in examples
Now that examples are validated against the DT schema, an error with
required 'clocks' property missing is exposed:

Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.example.dt.yaml: \
pinctrl@40020000: gpio@0: 'clocks' is a required property
Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.example.dt.yaml: \
pinctrl@50020000: gpio@1000: 'clocks' is a required property
Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.example.dt.yaml: \
pinctrl@50020000: gpio@2000: 'clocks' is a required property

Add the missing 'clocks' properties to the examples to fix the errors.

Fixes: 2c9239c125 ("dt-bindings: pinctrl: Convert stm32 pinctrl bindings to json-schema")
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-20 20:28:53 -06:00
Rob Herring
20051f5fdf dt-bindings: iio: ad7124: Fix dtc warnings in example
With the conversion to DT schema, the examples are now compiled with
dtc. The ad7124 binding example has the following warning:

Documentation/devicetree/bindings/iio/adc/adi,ad7124.example.dts:19.11-21: \
Warning (reg_format): /example-0/adc@0:reg: property has invalid length (4 bytes) (#address-cells == 1, #size-cells == 1)

There's a default #size-cells and #address-cells values of 1 for
examples. For examples needing different values such as this one on a
SPI bus, they need to provide a SPI bus parent node.

Fixes: 26ae15e62d ("Convert AD7124 bindings documentation to YAML format.")

Cc: Jonathan Cameron <jic23@kernel.org>
Cc: linux-iio@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-20 20:28:52 -06:00
Rob Herring
fbbf2b6e9b dt-bindings: iio: avia-hx711: Fix avdd-supply typo in example
Now that examples are validated against the DT schema, a typo in
avia-hx711 example generates a warning:

Documentation/devicetree/bindings/iio/adc/avia-hx711.example.dt.yaml: weight: 'avdd-supply' is a required property

Fix the typo.

Fixes: 5150ec3fe1 ("avia-hx711.yaml: transform DT binding to YAML")
Cc: Andreas Klinger <ak@it-klinger.de>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: linux-iio@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-20 20:28:52 -06:00
Rob Herring
fcbe7e3cf8 dt-bindings: pinctrl: aspeed: Fix AST2500 example errors
The schema examples are now validated against the schema itself. The
AST2500 pinctrl schema has a couple of errors:

Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.example.dt.yaml: \
example-0: $nodename:0: 'example-0' does not match '^(bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$'
Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.example.dt.yaml: \
pinctrl: aspeed,external-nodes: [[1, 2]] is too short

Fixes: 0a617de167 ("dt-bindings: pinctrl: aspeed: Convert AST2500 bindings to json-schema")
Cc: Andrew Jeffery <andrew@aj.id.au>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Joel Stanley <joel@jms.id.au>
Cc: linux-aspeed@lists.ozlabs.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-20 20:28:52 -06:00
Rob Herring
ad21a4ce04 dt-bindings: pinctrl: aspeed: Fix 'compatible' schema errors
The Aspeed pinctl schema have errors in the 'compatible' schema:

Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml: \
properties:compatible:enum: ['aspeed', 'ast2400-pinctrl', 'aspeed', 'g4-pinctrl'] has non-unique elements
Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.yaml: \
properties:compatible:enum: ['aspeed', 'ast2500-pinctrl', 'aspeed', 'g5-pinctrl'] has non-unique elements

Flow style sequences have to be quoted if the vales contain ','. Fix
this by using the more common one line per entry formatting.

Fixes: 0a617de167 ("dt-bindings: pinctrl: aspeed: Convert AST2500 bindings to json-schema")
Fixes: 07457937bb ("dt-bindings: pinctrl: aspeed: Convert AST2400 bindings to json-schema")
Cc: Andrew Jeffery <andrew@aj.id.au>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Joel Stanley <joel@jms.id.au>
Cc: linux-aspeed@lists.ozlabs.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-20 20:28:52 -06:00
Rob Herring
7d9ef7f37d dt-bindings: riscv: Limit cpus schema to only check RiscV 'cpu' nodes
Matching on the 'cpus' node was a bad choice because the schema is
incorrectly applied to non-RiscV cpus nodes. As we now have a common cpus
schema which checks the general structure, it is also redundant to do so
in the Risc-V CPU schema.

The downside is one could conceivably mix different architecture's cpu
nodes or have typos in the compatible string. The latter problem pretty
much exists for every schema.

Acked-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-20 20:28:52 -06:00
Rob Herring
15ffef1ae6 dt-bindings: Ensure child nodes are of type 'object'
Properties which are child node definitions need to have an explict
type. Otherwise, a matching (DT) property can silently match when an
error is desired. Fix this up tree-wide. Once this is fixed, the
meta-schema will enforce this on any child node definitions.

Cc: Chen-Yu Tsai <wens@csie.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: linux-mtd@lists.infradead.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-spi@vger.kernel.org
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-20 20:27:29 -06:00
Linus Torvalds
07ab9d5bc5 Mostly bugfixes, but also:
- s390 support for KVM selftests
 - LAPIC timer offloading to housekeeping CPUs
 - Extend an s390 optimization for overcommitted hosts to all architectures
 - Debugging cleanups and improvements
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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:
 "Mostly bugfixes, but also:

   - s390 support for KVM selftests

   - LAPIC timer offloading to housekeeping CPUs

   - Extend an s390 optimization for overcommitted hosts to all
     architectures

   - Debugging cleanups and improvements"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (25 commits)
  KVM: x86: Add fixed counters to PMU filter
  KVM: nVMX: do not use dangling shadow VMCS after guest reset
  KVM: VMX: dump VMCS on failed entry
  KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed
  KVM: s390: Use kvm_vcpu_wake_up in kvm_s390_vcpu_wakeup
  KVM: Boost vCPUs that are delivering interrupts
  KVM: selftests: Remove superfluous define from vmx.c
  KVM: SVM: Fix detection of AMD Errata 1096
  KVM: LAPIC: Inject timer interrupt via posted interrupt
  KVM: LAPIC: Make lapic timer unpinned
  KVM: x86/vPMU: reset pmc->counter to 0 for pmu fixed_counters
  KVM: nVMX: Ignore segment base for VMX memory operand when segment not FS or GS
  kvm: x86: ioapic and apic debug macros cleanup
  kvm: x86: some tsc debug cleanup
  kvm: vmx: fix coccinelle warnings
  x86: kvm: avoid constant-conversion warning
  x86: kvm: avoid -Wsometimes-uninitized warning
  KVM: x86: expose AVX512_BF16 feature to guest
  KVM: selftests: enable pgste option for the linker on s390
  KVM: selftests: Move kvm_create_max_vcpus test to generic code
  ...
2019-07-20 10:20:27 -07:00
Linus Torvalds
168c79971b Kbuild updates for v5.3 (2nd)
- match the directory structure of the linux-libc-dev package to that of
   Debian-based distributions
 
 - fix incorrect include/config/auto.conf generation when Kconfig creates
   it along with the .config file
 
 - remove misleading $(AS) from documents
 
 - clean up precious tag files by distclean instead of mrproper
 
 - add a new coccinelle patch for devm_platform_ioremap_resource migration
 
 - refactor module-related scripts to read modules.order instead of
   $(MODVERDIR)/*.mod files to get the list of created modules
 
 - remove MODVERDIR
 
 - update list of header compile-test
 
 - add -fcf-protection=none flag to avoid conflict with the retpoline
   flags when CONFIG_RETPOLINE=y
 
 - misc cleanups
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Merge tag 'kbuild-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - match the directory structure of the linux-libc-dev package to that
   of Debian-based distributions

 - fix incorrect include/config/auto.conf generation when Kconfig
   creates it along with the .config file

 - remove misleading $(AS) from documents

 - clean up precious tag files by distclean instead of mrproper

 - add a new coccinelle patch for devm_platform_ioremap_resource
   migration

 - refactor module-related scripts to read modules.order instead of
   $(MODVERDIR)/*.mod files to get the list of created modules

 - remove MODVERDIR

 - update list of header compile-test

 - add -fcf-protection=none flag to avoid conflict with the retpoline
   flags when CONFIG_RETPOLINE=y

 - misc cleanups

* tag 'kbuild-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits)
  kbuild: add -fcf-protection=none when using retpoline flags
  kbuild: update compile-test header list for v5.3-rc1
  kbuild: split out *.mod out of {single,multi}-used-m rules
  kbuild: remove 'prepare1' target
  kbuild: remove the first line of *.mod files
  kbuild: create *.mod with full directory path and remove MODVERDIR
  kbuild: export_report: read modules.order instead of .tmp_versions/*.mod
  kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod
  kbuild: modsign: read modules.order instead of $(MODVERDIR)/*.mod
  kbuild: modinst: read modules.order instead of $(MODVERDIR)/*.mod
  scsi: remove pointless $(MODVERDIR)/$(obj)/53c700.ver
  kbuild: remove duplication from modules.order in sub-directories
  kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin}
  kbuild: do not create empty modules.order in the prepare stage
  coccinelle: api: add devm_platform_ioremap_resource script
  kbuild: compile-test headers listed in header-test-m as well
  kbuild: remove unused hostcc-option
  kbuild: remove tag files by distclean instead of mrproper
  kbuild: add --hash-style= and --build-id unconditionally
  kbuild: get rid of misleading $(AS) from documents
  ...
2019-07-20 09:34:55 -07:00
Eric Hankland
30cd860432 KVM: x86: Add fixed counters to PMU filter
Updates KVM_CAP_PMU_EVENT_FILTER so it can also whitelist or blacklist
fixed counters.

Signed-off-by: Eric Hankland <ehankland@google.com>
[No need to check padding fields for zero. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-07-20 09:00:48 +02:00
Linus Torvalds
af6af87d7e ARM: Device-tree updates
We continue to see a lot of new material. I've highlighted some of it
 below, but there's been more beyond that as well.
 
 One of the sweeping changes is that many boards have seen their ARM Mali
 GPU devices added to device trees, since the DRM drivers have now been
 merged.
 
 So, with the caveat that I have surely missed several great
 contributions, here's a collection of the material this time around:
 
 New SoCs:
 
  - Mediatek mt8183 (4x Cortex-A73 + 4x Cortex-A53)
 
  - TI J721E (2x Cortex-A72 + 3x Cortex-R5F + 3 DSPs + MMA)
 
  - Amlogic G12B (4x Cortex-A73 + 2x Cortex-A53)
 
 New Boards / platforms:
 
  - Aspeed BMC support for a number of new server platforms
 
  - Kontron SMARC SoM (several i.MX6 versions)
 
  - Novtech's Meerkat96 (i.MX7)
 
  - ST Micro Avenger96 board
 
  - Hardkernel ODROID-N2 (Amlogic G12B)
 
  - Purism Librem5 devkit (i.MX8MQ)
 
  - Google Cheza (Qualcomm SDM845)
 
  - Qualcomm Dragonboard 845c (Qualcomm SDM845)
 
  - Hugsun X99 TV Box (Rockchip RK3399)
 
  - Khadas Edge/Edge-V/Captain (Rockchip RK3399)
 
 Updated / expanded boards and platforms:
 
  - Renesas r7s9210 has a lot of new peripherals added
 
  - Polish and fixes for Rockchip-based Chromebooks
 
  - Amlogic G12A has a lot of peripherals added
 
  - Nvidia Jetson Nano sees various fixes and improvements, and is now at
    feature parity with TX1
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM Devicetree updates from Olof Johansson:
 "We continue to see a lot of new material. I've highlighted some of it
  below, but there's been more beyond that as well.

  One of the sweeping changes is that many boards have seen their ARM
  Mali GPU devices added to device trees, since the DRM drivers have now
  been merged.

  So, with the caveat that I have surely missed several great
  contributions, here's a collection of the material this time around:

  New SoCs:

   - Mediatek mt8183 (4x Cortex-A73 + 4x Cortex-A53)

   - TI J721E (2x Cortex-A72 + 3x Cortex-R5F + 3 DSPs + MMA)

   - Amlogic G12B (4x Cortex-A73 + 2x Cortex-A53)

  New Boards / platforms:

   - Aspeed BMC support for a number of new server platforms

   - Kontron SMARC SoM (several i.MX6 versions)

   - Novtech's Meerkat96 (i.MX7)

   - ST Micro Avenger96 board

   - Hardkernel ODROID-N2 (Amlogic G12B)

   - Purism Librem5 devkit (i.MX8MQ)

   - Google Cheza (Qualcomm SDM845)

   - Qualcomm Dragonboard 845c (Qualcomm SDM845)

   - Hugsun X99 TV Box (Rockchip RK3399)

   - Khadas Edge/Edge-V/Captain (Rockchip RK3399)

  Updated / expanded boards and platforms:

   - Renesas r7s9210 has a lot of new peripherals added

   - Fixes and polish for Rockchip-based Chromebooks

   - Amlogic G12A has a lot of peripherals added

   - Nvidia Jetson Nano sees various fixes and improvements, and is now
     at feature parity with TX1"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (586 commits)
  ARM: dts: gemini: Set DIR-685 SPI CS as active low
  ARM: dts: exynos: Adjust buck[78] regulators to supported values on Arndale Octa
  ARM: dts: exynos: Adjust buck[78] regulators to supported values on Odroid XU3 family
  ARM: dts: exynos: Move Mali400 GPU node to "/soc"
  ARM: dts: exynos: Fix imprecise abort on Mali GPU probe on Exynos4210
  arm64: dts: qcom: qcs404: Add missing space for cooling-cells property
  arm64: dts: rockchip: Fix USB3 Type-C on rk3399-sapphire
  arm64: dts: rockchip: Update DWC3 modules on RK3399 SoCs
  arm64: dts: rockchip: enable rk3328 watchdog clock
  ARM: dts: rockchip: add display nodes for rk322x
  ARM: dts: rockchip: fix vop iommu-cells on rk322x
  arm64: dts: rockchip: Add support for Hugsun X99 TV Box
  arm64: dts: rockchip: Define values for the IPA governor for rock960
  arm64: dts: rockchip: Fix multiple thermal zones conflict in rk3399.dtsi
  arm64: dts: rockchip: add core dtsi file for RK3399Pro SoCs
  arm64: dts: rockchip: improve rk3328-roc-cc rgmii performance.
  Revert "ARM: dts: rockchip: set PWM delay backlight settings for Minnie"
  ARM: dts: rockchip: Configure BT_DEV_WAKE in on rk3288-veyron
  arm64: dts: qcom: sdm845-cheza: add initial cheza dt
  ARM: dts: msm8974-FP2: Add vibration motor
  ...
2019-07-19 17:19:24 -07:00
Linus Torvalds
8362fd64f0 ARM: SoC-related driver updates
Various driver updates for platforms and a couple of the small driver
 subsystems we merge through our tree:
 
  - A driver for SCU (system control) on NXP i.MX8QXP
  - Qualcomm Always-on Subsystem messaging driver (AOSS QMP)
  - Qualcomm PM support for MSM8998
  - Support for a newer version of DRAM PHY driver for Broadcom (DPFE)
  - Reset controller support for Bitmain BM1880
  - TI SCI (System Control Interface) support for CPU control on AM654
    processors
  - More TI sysc refactoring and rework
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms and a couple of the small driver
  subsystems we merge through our tree:

   - A driver for SCU (system control) on NXP i.MX8QXP

   - Qualcomm Always-on Subsystem messaging driver (AOSS QMP)

   - Qualcomm PM support for MSM8998

   - Support for a newer version of DRAM PHY driver for Broadcom (DPFE)

   - Reset controller support for Bitmain BM1880

   - TI SCI (System Control Interface) support for CPU control on AM654
     processors

   - More TI sysc refactoring and rework"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (84 commits)
  reset: remove redundant null check on pointer dev
  soc: rockchip: work around clang warning
  dt-bindings: reset: imx7: Fix the spelling of 'indices'
  soc: imx: Add i.MX8MN SoC driver support
  soc: aspeed: lpc-ctrl: Fix probe error handling
  soc: qcom: geni: Add support for ACPI
  firmware: ti_sci: Fix gcc unused-but-set-variable warning
  firmware: ti_sci: Use the correct style for SPDX License Identifier
  soc: imx8: Use existing of_root directly
  soc: imx8: Fix potential kernel dump in error path
  firmware/psci: psci_checker: Park kthreads before stopping them
  memory: move jedec_ddr.h from include/memory to drivers/memory/
  memory: move jedec_ddr_data.c from lib/ to drivers/memory/
  MAINTAINERS: Remove myself as qcom maintainer
  soc: aspeed: lpc-ctrl: make parameter optional
  soc: qcom: apr: Don't use reg for domain id
  soc: qcom: fix QCOM_AOSS_QMP dependency and build errors
  memory: tegra: Fix -Wunused-const-variable
  firmware: tegra: Early resume BPMP
  soc/tegra: Select pinctrl for Tegra194
  ...
2019-07-19 17:13:56 -07:00
Dave Jones
40ef768ab6 Remove references to dead website.
This fell into disrepair a while ago, and the majority of hits to the
snapshots were from bots, so it's more trouble to keep running than it's worth.

Signed-off-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-19 12:22:04 -07:00
Linus Torvalds
a84d2d2906 arch/csky patches for 5.3-rc1
This round of csky subsystem gives two features (ASID algorithm update,
 Perf pmu record support) and some fixups.
 
 Feature:
  - csky: Revert mmu ASID mechanism
  - csky: Add new asid lib code from arm
  - csky: Use generic asid algorithm to implement switch_mm
  - csky: Improve tlb operation with help of asid
 
  - csky: Init pmu as a device
  - csky: Add count-width property for csky pmu
  - csky: Add pmu interrupt support
  - csky: Fix perf record in kernel/user space
  - dt-bindings: csky: Add csky PMU bindings
 
 Fixup:
  - csky: Fixup no panic in kernel for some traps
  - csky: Fixup some error count in 810 & 860.
  - csky: Fixup abiv1 memset error
 
 CI-Tested: https://gitlab.com/c-sky/buildroot/pipelines/68656845
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Merge tag 'csky-for-linus-5.3-rc1' of git://github.com/c-sky/csky-linux

Pull arch/csky pupdates from Guo Ren:
 "This round of csky subsystem gives two features (ASID algorithm
  update, Perf pmu record support) and some fixups.

  ASID updates:
   - Revert mmu ASID mechanism
   - Add new asid lib code from arm
   - Use generic asid algorithm to implement switch_mm
   - Improve tlb operation with help of asid

  Perf pmu record support:
   - Init pmu as a device
   - Add count-width property for csky pmu
   - Add pmu interrupt support
   - Fix perf record in kernel/user space
   - dt-bindings: Add csky PMU bindings

  Fixes:
   - Fixup no panic in kernel for some traps
   - Fixup some error count in 810 & 860.
   - Fixup abiv1 memset error"

* tag 'csky-for-linus-5.3-rc1' of git://github.com/c-sky/csky-linux:
  csky: Fixup abiv1 memset error
  csky: Improve tlb operation with help of asid
  csky: Use generic asid algorithm to implement switch_mm
  csky: Add new asid lib code from arm
  csky: Revert mmu ASID mechanism
  dt-bindings: csky: Add csky PMU bindings
  dt-bindings: interrupt-controller: Update csky mpintc
  csky: Fixup some error count in 810 & 860.
  csky: Fix perf record in kernel/user space
  csky: Add pmu interrupt support
  csky: Add count-width property for csky pmu
  csky: Init pmu as a device
  csky: Fixup no panic in kernel for some traps
  csky: Select intc & timer drivers
2019-07-19 12:15:33 -07:00
Linus Torvalds
b5d72dda89 xen: fixes and features for 5.3-rc1
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Merge tag 'for-linus-5.3a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:
 "Fixes and features:

   - A series to introduce a common command line parameter for disabling
     paravirtual extensions when running as a guest in virtualized
     environment

   - A fix for int3 handling in Xen pv guests

   - Removal of the Xen-specific tmem driver as support of tmem in Xen
     has been dropped (and it was experimental only)

   - A security fix for running as Xen dom0 (XSA-300)

   - A fix for IRQ handling when offlining cpus in Xen guests

   - Some small cleanups"

* tag 'for-linus-5.3a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: let alloc_xenballooned_pages() fail if not enough memory free
  xen/pv: Fix a boot up hang revealed by int3 self test
  x86/xen: Add "nopv" support for HVM guest
  x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable
  xen: Map "xen_nopv" parameter to "nopv" and mark it obsolete
  x86: Add "nopv" parameter to disable PV extensions
  x86/xen: Mark xen_hvm_need_lapic() and xen_x2apic_para_available() as __init
  xen: remove tmem driver
  Revert "x86/paravirt: Set up the virt_spin_lock_key after static keys get initialized"
  xen/events: fix binding user event channels to cpus
2019-07-19 11:41:26 -07:00