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48549 commits

Author SHA1 Message Date
Linus Torvalds
1553d96854 remoteproc updates for v5.10
This introduces support for the Mediatek MT9182 SCP and controlling the
 Cortex R5F processors found in TI K3 platforms. It clones the
 longstanding debugfs interface for controlling crash handling to sysfs.
 Lastly it solves a bug where after a warm reset of Qualcomm platforms
 the modem would crash upon first boot.
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Merge tag 'rproc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This introduces support for the Mediatek MT9182 SCP and controlling
  the Cortex R5F processors found in TI K3 platforms. It clones the
  longstanding debugfs interface for controlling crash handling to
  sysfs. Lastly it solves a bug where after a warm reset of Qualcomm
  platforms the modem would crash upon first boot"

* tag 'rproc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
  remoteproc/mediatek: Remove non-standard dsb()
  remoteproc: Add recovery configuration to the sysfs interface
  remoteproc: Add coredump as part of sysfs interface
  remoteproc: Change default dump configuration to "disabled"
  remoteproc: k3-r5: Add loading support for on-chip SRAM regions
  remoteproc: k3-r5: Initialize TCM memories for ECC
  remoteproc: k3-r5: Add a remoteproc driver for R5F subsystem
  dt-bindings: remoteproc: Add bindings for R5F subsystem on TI K3 SoCs
  remoteproc/mediatek: Add support for mt8192 SCP
  remoteproc: Fixup coredump debugfs disable request
  remoteproc: qcom_q6v5: Assign mpss region to Q6 before MBA boot
  remoteproc/mediatek: fix null pointer dereference on null scp pointer
  remoteproc: stm32: Fix pointer assignement
  remoteproc: scp: add COMPILE_TEST dependency
2020-10-22 12:56:33 -07:00
Linus Torvalds
3fec0eaaf0 This pull request contains zero diff to the core framework. It is a collection
of various clk driver updates. The biggest driver updates in terms of lines of
 code is the Allwinner driver, closely followed by the Qualcomm and Mediatek
 drivers. All of those hit high because we add so many lines of clk data. Coming
 in fourth place is i.MX which also adds a bunch of clk data. This accounts for
 the new driver additions this time around.
 
 Otherwise the patches are lots of little cleanups and fixes for various clk
 drivers that have baked in linux-next for a while. I suppose one highlight or
 theme is that more clk drivers are being updated to work as modules, which is
 interesting to see such critical SoC infrastructure work as a loadable module.
 
 New Drivers:
  - Support qcom SM8150/SM8250 video and display clks
  - Support Mediatek MT8167 clks
  - Add clock for CRC block found on vf610 SoCs
  - Add support for the Renesas R-Car V3U (R8A779A0) SoC
  - Add support for the VSP for Resizing clock on Renesas RZ/G1H
  - Support Allwinner A100 SoC clks
 
 Removed Drivers:
  - Remove i.MX21 clock driver, as i.MX21 platform support is being dropped
 
 Updates:
  - Change how qcom's display port clks work
  - Small non-critical fixes for TI clk driver
  - Remove various unused variables in clk drivers
  - Allow Rockchip clk driver to be a module
  - Remove most __clk_lookup() calls in Samsung drivers (yay!)
  - Support building i.MX ARMv8 platforms clock driver as module
  - Some kerneldoc fixes here and there
  - A couple of minor i.MX clk data corrections
  - Update audio clock inverter and fdiv2 flag on Amlogic g12
  - Make amlogic clk drivers configurable in Kconfig
  - Fix Renesas VSP clock names to match corrected hardware documentation
  - Sigma-delta modulation on Allwinner R40
  - Various fixes for at91 clk driver
  - Use semicolons instead of commas in some places
  - Mark some variables const so they can move to RO memory
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This contains no changes to the core framework. It is a collection of
  various clk driver updates.

  The biggest driver updates in terms of lines of code is the Allwinner
  driver, closely followed by the Qualcomm and Mediatek drivers. All of
  those hit high because we add so many lines of clk data. Coming in
  fourth place is i.MX which also adds a bunch of clk data. This
  accounts for the new driver additions this time around.

  Otherwise the patches are lots of little cleanups and fixes for
  various clk drivers that have baked in linux-next for a while. I
  suppose one highlight or theme is that more clk drivers are being
  updated to work as modules, which is interesting to see such critical
  SoC infrastructure work as a loadable module.

  New Drivers:
   - Support qcom SM8150/SM8250 video and display clks
   - Support Mediatek MT8167 clks
   - Add clock for CRC block found on vf610 SoCs
   - Add support for the Renesas R-Car V3U (R8A779A0) SoC
   - Add support for the VSP for Resizing clock on Renesas RZ/G1H
   - Support Allwinner A100 SoC clks

  Removed Drivers:
   - Remove i.MX21 clock driver, as i.MX21 platform support is being
     dropped

  Updates:
   - Change how qcom's display port clks work
   - Small non-critical fixes for TI clk driver
   - Remove various unused variables in clk drivers
   - Allow Rockchip clk driver to be a module
   - Remove most __clk_lookup() calls in Samsung drivers (yay!)
   - Support building i.MX ARMv8 platforms clock driver as module
   - Some kerneldoc fixes here and there
   - A couple of minor i.MX clk data corrections
   - Update audio clock inverter and fdiv2 flag on Amlogic g12
   - Make amlogic clk drivers configurable in Kconfig
   - Fix Renesas VSP clock names to match corrected hardware
     documentation
   - Sigma-delta modulation on Allwinner R40
   - Various fixes for at91 clk driver
   - Use semicolons instead of commas in some places
   - Mark some variables const so they can move to RO memory"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (102 commits)
  clk: imx8mq: Fix usdhc parents order
  clk: qcom: gdsc: Keep RETAIN_FF bit set if gdsc is already on
  clk: Restrict CLK_HSDK to ARC_SOC_HSDK
  clk: at91: sam9x60: support only two programmable clocks
  clk: ingenic: Respect CLK_SET_RATE_PARENT in .round_rate
  clk: ingenic: Don't tag custom clocks with CLK_SET_RATE_PARENT
  clk: ingenic: Don't use CLK_SET_RATE_GATE for PLL
  clk: ingenic: Use readl_poll_timeout instead of custom loop
  clk: ingenic: Use to_clk_info() macro for all clocks
  clk: bcm2835: add missing release if devm_clk_hw_register fails
  clk: at91: clk-sam9x60-pll: remove unused variable
  clk: at91: clk-main: update key before writing AT91_CKGR_MOR
  clk: at91: remove the checking of parent_name
  clk: clk-prima2: fix return value check in prima2_clk_init()
  clk: mmp2: Fix the display clock divider base
  clk: pxa: Constify static struct clk_ops
  clk: baikal-t1: Mark Ethernet PLL as critical
  clk: qoriq: modify MAX_PLL_DIV to 32
  clk: axi-clkgen: Set power bits for fractional mode
  clk: axi-clkgen: Add support for fractional dividers
  ...
2020-10-22 12:53:28 -07:00
Linus Torvalds
ceae608a54 pwm: Changes for v5.10-rc1
This release cycle's updates are mostly cleanup and some minor fixes.
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Merge tag 'pwm/for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This release cycle's updates are mostly cleanup and some minor fixes"

* tag 'pwm/for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  dt-bindings: pwm: renesas,pwm-rcar: Add r8a7742 support
  dt-bindings: pwm: renesas,tpu-pwm: Document r8a7742 support
  pwm: Allow store 64-bit duty cycle from sysfs interface
  pwm: img: Fix null pointer access in probe
  pwm: pca9685: Disable unused alternative addresses
  pwm: pca9685: Use BIT() macro instead of shift
  pwm: pca9685: Make comments more consistent
  pwm: sun4i: Simplify with dev_err_probe()
  pwm: sprd: Simplify with dev_err_probe()
  pwm: sifive: Simplify with dev_err_probe()
  pwm: rockchip: Simplify with dev_err_probe()
  pwm: jz4740: Simplify with dev_err_probe()
  pwm: bcm2835: Simplify with dev_err_probe()
  pwm: Convert to use DEFINE_SEQ_ATTRIBUTE macro
  pwm: rockchip: Keep enabled PWMs running while probing
  dt-bindings: pwm: renesas,pwm-rcar: Add r8a774e1 support
2020-10-22 12:51:32 -07:00
Linus Torvalds
00937f36b0 pci-v5.10-changes
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Merge tag 'pci-v5.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:
   - Print IRQ number used by PCIe Link Bandwidth Notification (Dongdong
     Liu)
   - Add schedule point in pci_read_config() to reduce max latency
     (Jiang Biao)
   - Add Kconfig options for MPS/MRRS strategy (Jim Quinlan)

  Resource management:
   - Fix pci_iounmap() memory leak when !CONFIG_GENERIC_IOMAP (Lorenzo
     Pieralisi)

  PCIe native device hotplug:
   - Reduce noisiness on hot removal (Lukas Wunner)

  Power management:
   - Revert "PCI/PM: Apply D2 delay as milliseconds, not microseconds"
     that was done on the basis of spec typo (Bjorn Helgaas)
   - Rename pci_dev.d3_delay to d3hot_delay to remove D3hot/D3cold
     ambiguity (Krzysztof Wilczyński)
   - Remove unused pcibios_pm_ops (Vaibhav Gupta)

  IOMMU:
   - Enable Translation Blocking for external devices to harden against
     DMA attacks (Rajat Jain)

  Error handling:
   - Add an ACPI APEI notifier chain for vendor CPER records to enable
     device-specific error handling (Shiju Jose)

  ASPM:
   - Remove struct aspm_register_info to simplify code (Saheed O.
     Bolarinwa)

  Amlogic Meson PCIe controller driver:
   - Build as module by default (Kevin Hilman)

  Ampere Altra PCIe controller driver:
   - Add MCFG quirk to work around non-standard ECAM implementation
     (Tuan Phan)

  Broadcom iProc PCIe controller driver:
   - Set affinity mask on MSI interrupts (Mark Tomlinson)

  Broadcom STB PCIe controller driver:
   - Make PCIE_BRCMSTB depend on ARCH_BRCMSTB (Jim Quinlan)
   - Add DT bindings for more Brcmstb chips (Jim Quinlan)
   - Add bcm7278 register info (Jim Quinlan)
   - Add bcm7278 PERST# support (Jim Quinlan)
   - Add suspend and resume pm_ops (Jim Quinlan)
   - Add control of rescal reset (Jim Quinlan)
   - Set additional internal memory DMA viewport sizes (Jim Quinlan)
   - Accommodate MSI for older chips (Jim Quinlan)
   - Set bus max burst size by chip type (Jim Quinlan)
   - Add support for bcm7211, bcm7216, bcm7445, bcm7278 (Jim Quinlan)

  Freescale i.MX6 PCIe controller driver:
   - Use dev_err_probe() to reduce redundant messages (Anson Huang)

  Freescale Layerscape PCIe controller driver:
   - Enforce 4K DMA buffer alignment in endpoint test (Hou Zhiqiang)
   - Add DT compatible strings for ls1088a, ls2088a (Xiaowei Bao)
   - Add endpoint support for ls1088a, ls2088a (Xiaowei Bao)
   - Add endpoint test support for lS1088a (Xiaowei Bao)
   - Add MSI-X support for ls1088a (Xiaowei Bao)

  HiSilicon HIP PCIe controller driver:
   - Handle HIP-specific errors via ACPI APEI (Yicong Yang)

  HiSilicon Kirin PCIe controller driver:
   - Return -EPROBE_DEFER if the GPIO isn't ready (Bean Huo)

  Intel VMD host bridge driver:
   - Factor out physical offset, bus offset, IRQ domain, IRQ allocation
     (Jon Derrick)
   - Use generic PCI PM correctly (Jon Derrick)

  Marvell Aardvark PCIe controller driver:
   - Fix compilation on s390 (Pali Rohár)
   - Implement driver 'remove' function and allow to build it as module
     (Pali Rohár)
   - Move PCIe reset card code to advk_pcie_train_link() (Pali Rohár)
   - Convert mvebu a3700 internal SMCC firmware return codes to errno
     (Pali Rohár)
   - Fix initialization with old Marvell's Arm Trusted Firmware (Pali
     Rohár)

  Microsoft Hyper-V host bridge driver:
   - Fix hibernation in case interrupts are not re-created (Dexuan Cui)

  NVIDIA Tegra PCIe controller driver:
   - Stop checking return value of debugfs_create() functions (Greg
     Kroah-Hartman)
   - Convert to use DEFINE_SEQ_ATTRIBUTE macro (Liu Shixin)

  Qualcomm PCIe controller driver:
   - Reset PCIe to work around Qsdk U-Boot issue (Ansuel Smith)

  Renesas R-Car PCIe controller driver:
   - Add DT documentation for r8a774a1, r8a774b1, r8a774e1 endpoints
     (Lad Prabhakar)
   - Add RZ/G2M, RZ/G2N, RZ/G2H IDs to endpoint test (Lad Prabhakar)
   - Add DT support for r8a7742 (Lad Prabhakar)

  Socionext UniPhier Pro5 controller driver:
   - Add DT descriptions of iATU register (host and endpoint) (Kunihiko
     Hayashi)

  Synopsys DesignWare PCIe controller driver:
   - Add link up check in dw_child_pcie_ops.map_bus() (racy, but seems
     unavoidable) (Hou Zhiqiang)
   - Fix endpoint Header Type check so multi-function devices work (Hou
     Zhiqiang)
   - Skip PCIE_MSI_INTR0* programming if MSI is disabled (Jisheng Zhang)
   - Stop leaking MSI page in suspend/resume (Jisheng Zhang)
   - Add common iATU register support instead of keystone-specific code
     (Kunihiko Hayashi)
   - Major config space access and other cleanups in dwc core and
     drivers that use it (al, exynos, histb, imx6, intel-gw, keystone,
     kirin, meson, qcom, tegra) (Rob Herring)
   - Add multiple PFs support for endpoint (Xiaowei Bao)
   - Add MSI-X doorbell mode in endpoint mode (Xiaowei Bao)

  Miscellaneous:
   - Use fallthrough pseudo-keyword (Gustavo A. R. Silva)
   - Fix "0 used as NULL pointer" warnings (Gustavo Pimentel)
   - Fix "cast truncates bits from constant value" warnings (Gustavo
     Pimentel)
   - Remove redundant zeroing for sg_init_table() (Julia Lawall)
   - Use scnprintf(), not snprintf(), in sysfs "show" functions
     (Krzysztof Wilczyński)
   - Remove unused assignments (Krzysztof Wilczyński)
   - Fix "0 used as NULL pointer" warning (Krzysztof Wilczyński)
   - Simplify bool comparisons (Krzysztof Wilczyński)
   - Use for_each_child_of_node() and for_each_node_by_name() (Qinglang
     Miao)
   - Simplify return expressions (Qinglang Miao)"

* tag 'pci-v5.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (147 commits)
  PCI: vmd: Update VMD PM to correctly use generic PCI PM
  PCI: vmd: Create IRQ allocation helper
  PCI: vmd: Create IRQ Domain configuration helper
  PCI: vmd: Create bus offset configuration helper
  PCI: vmd: Create physical offset helper
  PCI: v3-semi: Remove unneeded break
  PCI: dwc: Add link up check in dw_child_pcie_ops.map_bus()
  PCI/ASPM: Remove struct pcie_link_state.l1ss
  PCI/ASPM: Remove struct aspm_register_info.l1ss_cap
  PCI/ASPM: Pass L1SS Capabilities value, not struct aspm_register_info
  PCI/ASPM: Remove struct aspm_register_info.l1ss_ctl1
  PCI/ASPM: Remove struct aspm_register_info.l1ss_ctl2 (unused)
  PCI/ASPM: Remove struct aspm_register_info.l1ss_cap_ptr
  PCI/ASPM: Remove struct aspm_register_info.latency_encoding
  PCI/ASPM: Remove struct aspm_register_info.enabled
  PCI/ASPM: Remove struct aspm_register_info.support
  PCI/ASPM: Use 'parent' and 'child' for readability
  PCI/ASPM: Move LTR path check to where it's used
  PCI/ASPM: Move pci_clear_and_set_dword() earlier
  PCI: dwc: Fix MSI page leakage in suspend/resume
  ...
2020-10-22 12:41:00 -07:00
Jakub Kicinski
594850ca43 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

1) Update debugging in IPVS tcp protocol handler to make it easier
   to understand, from longguang.yue

2) Update TCP tracker to deal with keepalive packet after
   re-registration, from Franceso Ruggeri.

3) Missing IP6SKB_FRAGMENTED from netfilter fragment reassembly,
   from Georg Kohmann.

4) Fix bogus packet drop in ebtables nat extensions, from
   Thimothee Cocault.

5) Fix typo in flowtable documentation.

6) Reset skb timestamp in nft_fwd_netdev.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-22 12:00:37 -07:00
Linus Torvalds
96485e4462 The siginificant new ext4 feature this time around is Harshad's new
fast_commit mode.  In addition, thanks to Mauricio for fixing a race
 where mmap'ed pages that are being changed in parallel with a
 data=journal transaction commit could result in bad checksums in the
 failure that could cause journal replays to fail.  Also notable is
 Ritesh's buffered write optimization which can result in significant
 improvements on parallel write workloads.  (The kernel test robot
 reported a 330.6% improvement on fio.write_iops on a 96 core system
 using DAX[1].)
 
 Besides that, we have the usual miscellaneous cleanups and bug fixes.
 
 [1] https://lore.kernel.org/r/20200925071217.GO28663@shao2-debian
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:
 "The siginificant new ext4 feature this time around is Harshad's new
  fast_commit mode.

  In addition, thanks to Mauricio for fixing a race where mmap'ed pages
  that are being changed in parallel with a data=journal transaction
  commit could result in bad checksums in the failure that could cause
  journal replays to fail.

  Also notable is Ritesh's buffered write optimization which can result
  in significant improvements on parallel write workloads. (The kernel
  test robot reported a 330.6% improvement on fio.write_iops on a 96
  core system using DAX)

  Besides that, we have the usual miscellaneous cleanups and bug fixes"

Link: https://lore.kernel.org/r/20200925071217.GO28663@shao2-debian

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (46 commits)
  ext4: fix invalid inode checksum
  ext4: add fast commit stats in procfs
  ext4: add a mount opt to forcefully turn fast commits on
  ext4: fast commit recovery path
  jbd2: fast commit recovery path
  ext4: main fast-commit commit path
  jbd2: add fast commit machinery
  ext4 / jbd2: add fast commit initialization
  ext4: add fast_commit feature and handling for extended mount options
  doc: update ext4 and journalling docs to include fast commit feature
  ext4: Detect already used quota file early
  jbd2: avoid transaction reuse after reformatting
  ext4: use the normal helper to get the actual inode
  ext4: fix bs < ps issue reported with dioread_nolock mount opt
  ext4: data=journal: write-protect pages on j_submit_inode_data_buffers()
  ext4: data=journal: fixes for ext4_page_mkwrite()
  jbd2, ext4, ocfs2: introduce/use journal callbacks j_submit|finish_inode_data_buffers()
  jbd2: introduce/export functions jbd2_journal_submit|finish_inode_data_buffers()
  ext4: introduce ext4_sb_bread_unmovable() to replace sb_bread_unmovable()
  ext4: use ext4_sb_bread() instead of sb_bread()
  ...
2020-10-22 10:31:08 -07:00
Linus Torvalds
24717cfbbb The one new feature this time, from Anna Schumaker, is READ_PLUS, which
has the same arguments as READ but allows the server to return an array
 of data and hole extents.
 
 Otherwise it's a lot of cleanup and bugfixes.
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Merge tag 'nfsd-5.10' of git://linux-nfs.org/~bfields/linux

Pull nfsd updates from Bruce Fields:
 "The one new feature this time, from Anna Schumaker, is READ_PLUS,
  which has the same arguments as READ but allows the server to return
  an array of data and hole extents.

  Otherwise it's a lot of cleanup and bugfixes"

* tag 'nfsd-5.10' of git://linux-nfs.org/~bfields/linux: (43 commits)
  NFSv4.2: Fix NFS4ERR_STALE error when doing inter server copy
  SUNRPC: fix copying of multiple pages in gss_read_proxy_verf()
  sunrpc: raise kernel RPC channel buffer size
  svcrdma: fix bounce buffers for unaligned offsets and multiple pages
  nfsd: remove unneeded break
  net/sunrpc: Fix return value for sysctl sunrpc.transports
  NFSD: Encode a full READ_PLUS reply
  NFSD: Return both a hole and a data segment
  NFSD: Add READ_PLUS hole segment encoding
  NFSD: Add READ_PLUS data support
  NFSD: Hoist status code encoding into XDR encoder functions
  NFSD: Map nfserr_wrongsec outside of nfsd_dispatch
  NFSD: Remove the RETURN_STATUS() macro
  NFSD: Call NFSv2 encoders on error returns
  NFSD: Fix .pc_release method for NFSv2
  NFSD: Remove vestigial typedefs
  NFSD: Refactor nfsd_dispatch() error paths
  NFSD: Clean up nfsd_dispatch() variables
  NFSD: Clean up stale comments in nfsd_dispatch()
  NFSD: Clean up switch statement in nfsd_dispatch()
  ...
2020-10-22 09:44:27 -07:00
Harshad Shirwadkar
f5b8b297b0 doc: update ext4 and journalling docs to include fast commit feature
This patch adds necessary documentation for fast commits.

Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20201015203802.3597742-2-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-10-21 23:19:43 -04:00
Oliver Upton
3ee6fb4949 Documentation: kvm: fix some typos in cpuid.rst
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Signed-off-by: Oliver Upton <oupton@google.com>
Change-Id: I0c6355b09fedf8f9cc4cc5f51be418e2c1c82b7b
Message-Id: <20200818152429.1923996-5-oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-21 17:36:32 -04:00
Oliver Upton
66570e966d kvm: x86: only provide PV features if enabled in guest's CPUID
KVM unconditionally provides PV features to the guest, regardless of the
configured CPUID. An unwitting guest that doesn't check
KVM_CPUID_FEATURES before use could access paravirt features that
userspace did not intend to provide. Fix this by checking the guest's
CPUID before performing any paravirtual operations.

Introduce a capability, KVM_CAP_ENFORCE_PV_FEATURE_CPUID, to gate the
aforementioned enforcement. Migrating a VM from a host w/o this patch to
a host with this patch could silently change the ABI exposed to the
guest, warranting that we default to the old behavior and opt-in for
the new one.

Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Signed-off-by: Oliver Upton <oupton@google.com>
Change-Id: I202a0926f65035b872bfe8ad15307c026de59a98
Message-Id: <20200818152429.1923996-4-oupton@google.com>
Reviewed-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-21 17:36:32 -04:00
Li Qiang
10f79ccaf3 Documentation: kvm: fix a typo
Fixes: e287d6de62 ("Documentation: kvm: Convert cpuid.txt to .rst")
Signed-off-by: Li Qiang <liq3ea@163.com>
Message-Id: <20201001095333.7611-1-liq3ea@163.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-21 17:36:30 -04:00
Paolo Bonzini
043248b328 KVM: VMX: Forbid userspace MSR filters for x2APIC
Allowing userspace to intercept reads to x2APIC MSRs when APICV is
fully enabled for the guest simply can't work.   But more in general,
the LAPIC could be set to in-kernel after the MSR filter is setup
and allowing accesses by userspace would be very confusing.

We could in principle allow userspace to intercept reads and writes to TPR,
and writes to EOI and SELF_IPI, but while that could be made it work, it
would still be silly.

Cc: Alexander Graf <graf@amazon.com>
Cc: Aaron Lewis <aaronlewis@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-21 17:36:24 -04:00
Sean Christopherson
9389b9d5d3 KVM: VMX: Ignore userspace MSR filters for x2APIC
Rework the resetting of the MSR bitmap for x2APIC MSRs to ignore userspace
filtering.  Allowing userspace to intercept reads to x2APIC MSRs when
APICV is fully enabled for the guest simply can't work; the LAPIC and thus
virtual APIC is in-kernel and cannot be directly accessed by userspace.
To keep things simple we will in fact forbid intercepting x2APIC MSRs
altogether, independent of the default_allow setting.

Cc: Alexander Graf <graf@amazon.com>
Cc: Aaron Lewis <aaronlewis@google.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20201005195532.8674-3-sean.j.christopherson@intel.com>
[Modified to operate even if APICv is disabled, adjust documentation. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-21 17:36:19 -04:00
Krzysztof Kozlowski
030f066f67 docs: submitting-patches: describe preserving review/test tags
From time to time, the novice kernel contributors do not add Reviewed-by
or Tested-by tags to the next versions of the patches.  Mostly because
they are unaware that responsibility of adding these tags in next
version is on submitter, not maintainer.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Link: https://lore.kernel.org/r/20201013162725.13572-1-krzk@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-21 15:16:15 -06:00
Bailu Lin
e0533dee52 Documentation: Chinese translation of Documentation/arm64/hugetlbpage.rst
This is a Chinese translated version of
 Documentation/arm64/hugetlbpage.rst

Signed-off-by: Bailu Lin <bailu.lin@vivo.com>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Link: https://lore.kernel.org/r/20201014022003.43862-1-bailu.lin@vivo.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-21 15:15:17 -06:00
Wei Lin Chang
d7a4c55b13 Documentation: x86: fix a missing word in x86_64/mm.rst.
This patch adds a missing word in x86/x86_64/mm.rst, without which
the note reads awkwardly.

Signed-off-by: Wei Lin Chang <r09922117@csie.ntu.edu.tw>
Link: https://lore.kernel.org/r/20201015062242.26296-1-r09922117@csie.ntu.edu.tw
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-21 15:14:36 -06:00
Mauro Carvalho Chehab
d16eb0edf9 docs: driver-api: remove a duplicated index entry
The ipmb file was added twice at index.rst. That
sounds to be because the same patch was applied twice,
via different git trees:

	commit f6ae22d644
	Author: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
	Commit: Jonathan Corbet <corbet@lwn.net>

	    docs: ipmb: place it at driver-api and convert to ReST

	commit ac499fba98
	Author: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
	Commit: Corey Minyard <cminyard@mvista.com>

	    docs: ipmb: place it at driver-api and convert to ReST

With Sphinx 4.0.0 development tree, a new warning is produced
due to that:

	.../Documentation/driver-api/index.rst:14: WARNING: duplicated entry found in toctree: driver-api/ipmb

The fix is trivial: just drop the duplicated line.

Fixes: f6ae22d644 ("docs: ipmb: place it at driver-api and convert to ReST")
Fixes: ac499fba98 ("docs: ipmb: place it at driver-api and convert to ReST")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/623fb26a8409a7b002e45bdbb6f517ac08fd508a.1602753121.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-21 15:12:50 -06:00
Kees Cook
ac8bf0de6a docs: lkdtm: Modernize and improve details
The details on using LKDTM were overly obscure. Modernize the details
and expand examples to better illustrate how to use the interfaces.
Additionally add missing SPDX header.

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201015224559.2137489-1-keescook@chromium.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-21 15:10:30 -06:00
Kees Cook
27def953b6 docs: deprecated.rst: Expand str*cpy() replacement notes
The notes on replacing the deprecated str*cpy() functions didn't call
enough attention to the change in return type. Add these details and
clean up the language a bit more.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20201015231730.2138505-1-keescook@chromium.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-21 15:09:16 -06:00
Hui Su
bb7a2c6362 docs/cpu-load: format the example code.
format the example code.

Signed-off-by: Hui Su <sh_def@163.com>
Link: https://lore.kernel.org/r/20201018170557.GA7670@rlk
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-21 15:07:30 -06:00
Linus Torvalds
f804b31594 linux-watchdog 5.10-rc1 tag
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Merge tag 'linux-watchdog-5.10-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - Add Toshiba Visconti watchdog driver

 - it87_wdt: add IT8772 + IT8784

 - several fixes and improvements

* tag 'linux-watchdog-5.10-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: Add Toshiba Visconti watchdog driver
  watchdog: bindings: Add binding documentation for Toshiba Visconti watchdog device
  watchdog: it87_wdt: add IT8784 ID
  watchdog: sp5100_tco: Enable watchdog on Family 17h devices if disabled
  watchdog: sp5100: Fix definition of EFCH_PM_DECODEEN3
  watchdog: renesas_wdt: support handover from bootloader
  watchdog: imx7ulp: Watchdog should continue running for wait/stop mode
  watchdog: rti: Simplify with dev_err_probe()
  watchdog: davinci: Simplify with dev_err_probe()
  watchdog: cadence: Simplify with dev_err_probe()
  watchdog: remove unneeded inclusion of <uapi/linux/sched/types.h>
  watchdog: Use put_device on error
  watchdog: Fix memleak in watchdog_cdev_register
  watchdog: imx7ulp: Strictly follow the sequence for wdog operations
  watchdog: it87_wdt: add IT8772 ID
  watchdog: pcwd_usb: Avoid GFP_ATOMIC where it is not needed
  drivers: watchdog: rdc321x_wdt: Fix race condition bugs
2020-10-21 11:28:43 -07:00
Linus Torvalds
b7769c45b8 RTC for 5.10
Subsystem:
  - new generic DT properties: aux-voltage-chargeable, trickle-voltage-millivolt
 
 New driver:
  - Microcrystal RV-3032
 
 Drivers:
  - ds1307: use aux-voltage-chargeable
  - r9701, rx8010: modernization of the driver
  - rv3028: fix clock output, trickle resistor values, RAM configuration
    registers
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Merge tag 'rtc-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "A new driver this cycle is making the bulk of the changes and the
  rx8010 driver has been rework to use the modern APIs.

  Summary:

  Subsystem:
   - new generic DT properties: aux-voltage-chargeable,
     trickle-voltage-millivolt

  New driver:
   - Microcrystal RV-3032

  Drivers:
   - ds1307: use aux-voltage-chargeable
   - r9701, rx8010: modernization of the driver
   - rv3028: fix clock output, trickle resistor values, RAM
     configuration registers"

* tag 'rtc-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
  rtc: r9701: set range
  rtc: r9701: convert to devm_rtc_allocate_device
  rtc: r9701: stop setting RWKCNT
  rtc: r9701: remove useless memset
  rtc: r9701: stop setting a default time
  rtc: r9701: remove leftover comment
  rtc: rv3032: Add a driver for Microcrystal RV-3032
  dt-bindings: rtc: rv3032: add RV-3032 bindings
  dt-bindings: rtc: add trickle-voltage-millivolt
  rtc: rv3028: ensure ram configuration registers are saved
  rtc: rv3028: factorize EERD bit handling
  rtc: rv3028: fix trickle resistor values
  rtc: rv3028: fix clock output support
  rtc: mt6397: Remove unused member dev
  rtc: rv8803: simplify the return expression of rv8803_nvram_write
  rtc: meson: simplify the return expression of meson_vrtc_probe
  rtc: rx8010: rename rx8010_init_client() to rx8010_init()
  rtc: ds1307: enable rx8130's backup battery, make it chargeable optionally
  rtc: ds1307: consider aux-voltage-chargeable
  rtc: ds1307: store previous charge default per chip
  ...
2020-10-21 11:22:08 -07:00
Linus Torvalds
b5df4b5c28 Merge branch 'i2c/for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:

 - if a host can be a client, too, the I2C core can now use it to
   emulate SMBus HostNotify support (STM32 and R-Car added this so far)

 - also for client mode, a testunit has been added. It can create rare
   situations on the bus, so host controllers can be tested

 - a binding has been added to mark the bus as "single-master". This
   allows for better timeout detections

 - new driver for Mellanox Bluefield

 - massive refactoring of the Tegra driver

 - EEPROMs recognized by the at24 driver can now have custom names

 - rest is driver updates

* 'i2c/for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (80 commits)
  Documentation: i2c: add testunit docs to index
  i2c: tegra: Improve driver module description
  i2c: tegra: Clean up whitespaces, newlines and indentation
  i2c: tegra: Clean up and improve comments
  i2c: tegra: Clean up printk messages
  i2c: tegra: Clean up variable names
  i2c: tegra: Improve formatting of variables
  i2c: tegra: Check errors for both positive and negative values
  i2c: tegra: Factor out hardware initialization into separate function
  i2c: tegra: Factor out register polling into separate function
  i2c: tegra: Factor out packet header setup from tegra_i2c_xfer_msg()
  i2c: tegra: Factor out error recovery from tegra_i2c_xfer_msg()
  i2c: tegra: Rename wait/poll functions
  i2c: tegra: Remove "dma" variable from tegra_i2c_xfer_msg()
  i2c: tegra: Remove redundant check in tegra_i2c_issue_bus_clear()
  i2c: tegra: Remove likely/unlikely from the code
  i2c: tegra: Remove outdated barrier()
  i2c: tegra: Clean up variable types
  i2c: tegra: Reorder location of functions in the code
  i2c: tegra: Clean up probe function
  ...
2020-10-21 10:54:05 -07:00
Linus Torvalds
ed7cfefe44 We have:
- a patch that removes crush_workspace_mutex (myself).  CRUSH
   computations are no longer serialized and can run in parallel.
 
 - a couple new filesystem client metrics for "ceph fs top" command
   (Xiubo Li)
 
 - a fix for a very old messenger bug that affected the filesystem,
   marked for stable (myself)
 
 - assorted fixups and cleanups throughout the codebase from Jeff
   and others.
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Merge tag 'ceph-for-5.10-rc1' of git://github.com/ceph/ceph-client

Pull ceph updates from Ilya Dryomov:

 - a patch that removes crush_workspace_mutex (myself). CRUSH
   computations are no longer serialized and can run in parallel.

 - a couple new filesystem client metrics for "ceph fs top" command
   (Xiubo Li)

 - a fix for a very old messenger bug that affected the filesystem,
   marked for stable (myself)

 - assorted fixups and cleanups throughout the codebase from Jeff and
   others.

* tag 'ceph-for-5.10-rc1' of git://github.com/ceph/ceph-client: (27 commits)
  libceph: clear con->out_msg on Policy::stateful_server faults
  libceph: format ceph_entity_addr nonces as unsigned
  libceph: fix ENTITY_NAME format suggestion
  libceph: move a dout in queue_con_delay()
  ceph: comment cleanups and clarifications
  ceph: break up send_cap_msg
  ceph: drop separate mdsc argument from __send_cap
  ceph: promote to unsigned long long before shifting
  ceph: don't SetPageError on readpage errors
  ceph: mark ceph_fmt_xattr() as printf-like for better type checking
  ceph: fold ceph_update_writeable_page into ceph_write_begin
  ceph: fold ceph_sync_writepages into writepage_nounlock
  ceph: fold ceph_sync_readpages into ceph_readpage
  ceph: don't call ceph_update_writeable_page from page_mkwrite
  ceph: break out writeback of incompatible snap context to separate function
  ceph: add a note explaining session reject error string
  libceph: switch to the new "osd blocklist add" command
  libceph, rbd, ceph: "blacklist" -> "blocklist"
  ceph: have ceph_writepages_start call pagevec_lookup_range_tag
  ceph: use kill_anon_super helper
  ...
2020-10-21 10:34:10 -07:00
Bjorn Helgaas
f95f023d11 Merge branch 'remotes/lorenzo/pci/rcar'
- Document R8A774A1, R8A774B1, R8A774E1 endpoint support in DT (Lad
  Prabhakar)

- Add R8A774A1, R8A774B1, R8A774E1 (RZ/G2M, RZ/G2N, RZ/G2H) IDs to endpoint
  test (Lad Prabhakar)

- Add device tree support for R8A7742 (Lad Prabhakar)

- Use "fallthrough" pseudo-keyword (Gustavo A. R. Silva)

* remotes/lorenzo/pci/rcar:
  dt-bindings: PCI: rcar: Add device tree support for r8a7742
  PCI: rcar-gen2: Use fallthrough pseudo-keyword
  misc: pci_endpoint_test: Add Device ID for RZ/G2H PCIe controller
  dt-bindings: pci: rcar-pci-ep: Document r8a774e1
  misc: pci_endpoint_test: Add Device ID for RZ/G2M and RZ/G2N PCIe controllers
  dt-bindings: pci: rcar-pci-ep: Document r8a774a1 and r8a774b1
2020-10-21 09:58:43 -05:00
Bjorn Helgaas
924bb1f9b0 Merge branch 'remotes/lorenzo/pci/dwc'
- Fix designware-ep Header Type check (Hou Zhiqiang)

- Use DBI accessors instead of own config accessors (Rob Herring)

- Allow overriding bridge pci_ops (Rob Herring)

- Allow root and child buses to have different pci_ops (Rob Herring)

- Add default dwc pci_ops.map_bus (Rob Herring)

- Use pci_ops for root config space accessors in al, exynos, histb,
  keystone, kirin, meson, tegra (Rob Herring)

- Remove dwc own/other config accessor ops (Rob Herring)

- Use generic config accessors in dwc (Rob Herring)

- Also call .add_bus() callback for root bus (Rob Herring)

- Convert keystone .scan_bus() callback to use pci_ops.add_bus (Rob
  Herring)

- Convert dwc to use pci_host_probe() (Rob Herring)

- Remove dwc root_bus pointer (Rob Herring)

- Remove storing of PCI resources in dwc-specific structs (Rob Herring)

- Simplify config space handling (Rob Herring)

- Drop keystone duplicated DT num-viewport handling (Rob Herring)

- Check CONFIG_PCI_MSI in dw_pcie_msi_init() instead of duplicating it in
  all the drivers (Rob Herring)

- Remove imx6 duplicate PCIE_LINK_WIDTH_SPEED_CONTROL definition (Rob
  Herring)

- Add dwc num_lanes for use when it's lacking from DT (Rob Herring)

- Ensure "Fast Link Mode" simulation environment setting is cleared (Rob
  Herring)

- Drop meson duplicate number of lanes setup (Rob Herring)

- Drop meson unnecessary RC config space init (Rob Herring)

- Rework meson config and dwc port logic register accesses (Rob Herring)

- Use common PCI register definitions in imx6 and qcom (Rob Herring)

- Search for DesignWare PCIe Capability instead of hard-coding its location
  (Rob Herring)

- Use common DesignWare register definitions in tegra (Rob Herring)

- Drop keystone unused DBI2 code (Rob Herring)

- Make dwc ATU accessors private (Rob Herring)

- Centralize link gen setting in dwc (Rob Herring)

- Set PORT_LINK_DLL_LINK_EN in common dwc setup code (Rob Herring)

- Drop intel-gw unnecessary DT 'device_type' checking (Rob Herring)

- Move intel-gw PCI_CAP_ID_EXP discovery to the single place it's used (Rob
  Herring)

- Drop intel-gw unused max_width (Rob Herring)

- Move N_FTS (fast training sequence) setup to common dwc setup (Rob
  Herring)

- Convert spear13xx, tegra194 to use DBI accessors (Rob Herring)

- Add multiple PFs support for DWC (Xiaowei Bao)

- Add MSI-X doorbell mode for endpoint mode (Xiaowei Bao)

- Update MSI/MSI-X capability management for endpoints (Xiaowei Bao)

- Add layerscape ls1088a and ls2088a compatible strings (Xiaowei Bao)

- Update layerscape MSI/MSI-X management (Xiaowei Bao)

- Use doorbell to support MSI-X on layerscape (Xiaowei Bao)

- Add layerscape endpoint mode support for ls1088a and ls2088a (Xiaowei
  Bao)

- Add layerscape ls1088a node to DT (Xiaowei Bao)

- Add Freescale/Layerscape ls1088a to endpoint test (Xiaowei Bao)

- Add endpoint test driver data for Layerscape PCIe controllers (Hou
  Zhiqiang)

- Fix 'cast truncates bits from constant value' warning (Gustavo Pimentel)

- Add uniphier iATU register description (Kunihiko Hayashi)

- Add common iATU register support (Kunihiko Hayashi)

- Remove keystone iATU register mapping in favor of generic dwc support
  (Kunihiko Hayashi)

- Skip PCIE_MSI_INTR0* programming if MSI is disabled (Jisheng Zhang)

- Fix MSI page leakage in suspend/resume (Jisheng Zhang)

- Check whether link is up before attempting config access (best-effort fix
  even though it's racy) (Hou Zhiqiang)

* remotes/lorenzo/pci/dwc:
  PCI: dwc: Add link up check in dw_child_pcie_ops.map_bus()
  PCI: dwc: Fix MSI page leakage in suspend/resume
  PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled
  PCI: keystone: Remove iATU register mapping
  PCI: dwc: Add common iATU register support
  dt-bindings: PCI: uniphier-ep: Add iATU register description
  dt-bindings: PCI: uniphier: Add iATU register description
  PCI: dwc: Fix 'cast truncates bits from constant value'
  misc: pci_endpoint_test: Add driver data for Layerscape PCIe controllers
  misc: pci_endpoint_test: Add LS1088a in pci_device_id table
  PCI: layerscape: Add EP mode support for ls1088a and ls2088a
  PCI: layerscape: Modify the MSIX to the doorbell mode
  PCI: layerscape: Modify the way of getting capability with different PEX
  PCI: layerscape: Fix some format issue of the code
  dt-bindings: pci: layerscape-pci: Add compatible strings for ls1088a and ls2088a
  PCI: designware-ep: Modify MSI and MSIX CAP way of finding
  PCI: designware-ep: Move the function of getting MSI capability forward
  PCI: designware-ep: Add the doorbell mode of MSI-X in EP mode
  PCI: designware-ep: Add multiple PFs support for DWC
  PCI: dwc: Use DBI accessors
  PCI: dwc: Move N_FTS setup to common setup
  PCI: dwc/intel-gw: Drop unused max_width
  PCI: dwc/intel-gw: Move getting PCI_CAP_ID_EXP offset to intel_pcie_link_setup()
  PCI: dwc/intel-gw: Drop unnecessary checking of DT 'device_type' property
  PCI: dwc: Set PORT_LINK_DLL_LINK_EN in common setup code
  PCI: dwc: Centralize link gen setting
  PCI: dwc: Make ATU accessors private
  PCI: dwc: Remove read_dbi2 code
  PCI: dwc/tegra: Use common Designware port logic register definitions
  PCI: dwc: Remove hardcoded PCI_CAP_ID_EXP offset
  PCI: dwc/qcom: Use common PCI register definitions
  PCI: dwc/imx6: Use common PCI register definitions
  PCI: dwc/meson: Rework PCI config and DW port logic register accesses
  PCI: dwc/meson: Drop unnecessary RC config space initialization
  PCI: dwc/meson: Drop the duplicate number of lanes setup
  PCI: dwc: Ensure FAST_LINK_MODE is cleared
  PCI: dwc: Add a 'num_lanes' field to struct dw_pcie
  PCI: dwc/imx6: Remove duplicate define PCIE_LINK_WIDTH_SPEED_CONTROL
  PCI: dwc: Check CONFIG_PCI_MSI inside dw_pcie_msi_init()
  PCI: dwc/keystone: Drop duplicated 'num-viewport'
  PCI: dwc: Simplify config space handling
  PCI: dwc: Remove storing of PCI resources
  PCI: dwc: Remove root_bus pointer
  PCI: dwc: Convert to use pci_host_probe()
  PCI: dwc: keystone: Convert .scan_bus() callback to use add_bus
  PCI: Also call .add_bus() callback for root bus
  PCI: dwc: Use generic config accessors
  PCI: dwc: Remove dwc specific config accessor ops
  PCI: dwc: histb: Use pci_ops for root config space accessors
  PCI: dwc: exynos: Use pci_ops for root config space accessors
  PCI: dwc: kirin: Use pci_ops for root config space accessors
  PCI: dwc: meson: Use pci_ops for root config space accessors
  PCI: dwc: tegra: Use pci_ops for root config space accessors
  PCI: dwc: keystone: Use pci_ops for config space accessors
  PCI: dwc: al: Use pci_ops for child config space accessors
  PCI: dwc: Add a default pci_ops.map_bus for root port
  PCI: dwc: Allow overriding bridge pci_ops
  PCI: dwc: Use DBI accessors instead of own config accessors
  PCI: Allow root and child buses to have different pci_ops
  PCI: designware-ep: Fix the Header Type check
2020-10-21 09:58:39 -05:00
Bjorn Helgaas
a66999a344 Merge branch 'remotes/lorenzo/pci/brcmstb'
- Make PCIE_BRCMSTB depend on and default to ARCH_BRCMSTB (Jim Quinlan)

- Add DT bindings for 7278, 7216, 7211, and new properties (Jim Quinlan)

- Add bcm7278 register info (Jim Quinlan)

- Add suspend and resume pm_ops (Jim Quinlan)

- Add bcm7278 PERST# support (Jim Quinlan)

- Add control of RESCAL reset (Jim Quinlan)

- Set additional internal memory DMA viewport sizes (Jim Quinlan)

- Accommodate MSI for older chips (Jim Quinlan)

- Set bus max burst size by chip type (Jim Quinlan)

- Add bcm7211, bcm7216, bcm7445, bcm7278 to match list (Jim Quinlan)

* remotes/lorenzo/pci/brcmstb:
  PCI: brcmstb: Add bcm7211, bcm7216, bcm7445, bcm7278 to match list
  PCI: brcmstb: Set bus max burst size by chip type
  PCI: brcmstb: Accommodate MSI for older chips
  PCI: brcmstb: Set additional internal memory DMA viewport sizes
  PCI: brcmstb: Add control of rescal reset
  PCI: brcmstb: Add bcm7278 PERST# support
  PCI: brcmstb: Add suspend and resume pm_ops
  PCI: brcmstb: Add bcm7278 register info
  dt-bindings: PCI: Add bindings for more Brcmstb chips
  PCI: brcmstb: PCIE_BRCMSTB depends on ARCH_BRCMSTB
2020-10-21 09:58:38 -05:00
SeongJae Park
4553350ffe xen-blkfront: Apply changed parameter name to the document
Commit 14e710fe78 ("xen-blkfront: rename indirect descriptor
parameter") changed the name of the module parameter for the maximum
amount of segments in indirect requests but missed updating the
document.  This commit updates the document.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Link: https://lore.kernel.org/r/20200923061841.20531-4-sjpark@amazon.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2020-10-21 07:15:17 -05:00
SeongJae Park
74a852479c xen-blkfront: add a parameter for disabling of persistent grants
Persistent grants feature provides high scalability.  On some small
systems, however, it could incur data copy overheads[1] and thus it is
required to be disabled.  It can be disabled from blkback side using a
module parameter, 'feature_persistent'.  But, it is impossible from
blkfront side.  For the reason, this commit adds a blkfront module
parameter for disabling of the feature.

[1] https://wiki.xen.org/wiki/Xen_4.3_Block_Protocol_Scalability

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Link: https://lore.kernel.org/r/20200923061841.20531-3-sjpark@amazon.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2020-10-21 07:15:15 -05:00
SeongJae Park
aac8a70db2 xen-blkback: add a parameter for disabling of persistent grants
Persistent grants feature provides high scalability.  On some small
systems, however, it could incur data copy overheads[1] and thus it is
required to be disabled.  But, there is no option to disable it.  For
the reason, this commit adds a module parameter for disabling of the
feature.

[1] https://wiki.xen.org/wiki/Xen_4.3_Block_Protocol_Scalability

Signed-off-by: Anthony Liguori <aliguori@amazon.com>
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Link: https://lore.kernel.org/r/20200923061841.20531-2-sjpark@amazon.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2020-10-21 07:15:13 -05:00
Ard Biesheuvel
acd7aaf51b netsec: ignore 'phy-mode' device property on ACPI systems
Since commit bbc4d71d63 ("net: phy: realtek: fix rtl8211e rx/tx
delay config"), the Realtek PHY driver will override any TX/RX delay
set by hardware straps if the phy-mode device property does not match.

This is causing problems on SynQuacer based platforms (the only SoC
that incorporates the netsec hardware), since many were built with
this Realtek PHY, and shipped with firmware that defines the phy-mode
as 'rgmii', even though the PHY is configured for TX and RX delay using
pull-ups.

From the driver's perspective, we should not make any assumptions in
the general case that the PHY hardware does not require any initial
configuration. However, the situation is slightly different for ACPI
boot, since it implies rich firmware with AML abstractions to handle
hardware details that are not exposed to the OS. So in the ACPI case,
it is reasonable to assume that the PHY comes up in the right mode,
regardless of whether the mode is set by straps, by boot time firmware
or by AML executed by the ACPI interpreter.

So let's ignore the 'phy-mode' device property when probing the netsec
driver in ACPI mode, and hardcode the mode to PHY_INTERFACE_MODE_NA,
which should work with any PHY provided that it is configured by the
time the driver attaches to it. While at it, document that omitting
the mode is permitted for DT probing as well, by setting the phy-mode
DT property to the empty string.

Fixes: 533dd11a12 ("net: socionext: Add Synquacer NetSec driver")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201018163625.2392-1-ardb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-20 15:59:43 -07:00
Dave Airlie
7e13256dfe Two patches to prevent out-of-bands accesses on fonts buffers
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Merge tag 'drm-misc-next-fixes-2020-10-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

Two patches to prevent out-of-bands accesses on fonts buffers

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20201020141445.4jisqylfbusdnzge@gilmour
2020-10-21 06:58:39 +10:00
Stephen Boyd
5f56888fad Merge branches 'clk-ingenic', 'clk-at91', 'clk-kconfig', 'clk-imx', 'clk-qcom', 'clk-prima2' and 'clk-bcm' into clk-next
- Support qcom SM8150/SM8250 video and display clks
 - Change how qcom's display port clks work

* clk-ingenic:
  clk: ingenic: Respect CLK_SET_RATE_PARENT in .round_rate
  clk: ingenic: Don't tag custom clocks with CLK_SET_RATE_PARENT
  clk: ingenic: Don't use CLK_SET_RATE_GATE for PLL
  clk: ingenic: Use readl_poll_timeout instead of custom loop
  clk: ingenic: Use to_clk_info() macro for all clocks

* clk-at91:
  clk: at91: sam9x60: support only two programmable clocks
  clk: at91: clk-sam9x60-pll: remove unused variable
  clk: at91: clk-main: update key before writing AT91_CKGR_MOR
  clk: at91: remove the checking of parent_name

* clk-kconfig:
  clk: Restrict CLK_HSDK to ARC_SOC_HSDK

* clk-imx:
  clk: imx8mq: Fix usdhc parents order
  clk: imx: imx21: Remove clock driver
  clk: imx: gate2: Fix a few typos
  clk: imx: Fix and update kerneldoc
  clk: imx: fix i.MX7D peripheral clk mux flags
  clk: imx: fix composite peripheral flags
  clk: imx: Correct the memrepair clock on imx8mp
  clk: imx: Correct the root clk of media ldb on imx8mp
  clk: imx: vf610: Add CRC clock
  clk: imx: Explicitly include bits.h
  clk: imx8qxp: Support building i.MX8QXP clock driver as module
  clk: imx8m: Support module build
  clk: imx: Add clock configuration for ARMv7 platforms
  clk: imx: Support building i.MX common clock driver as module
  clk: composite: Export clk_hw_register_composite()
  clk: imx6sl: Use BIT(x) to avoid shifting signed 32-bit value by 31 bits

* clk-qcom:
  clk: qcom: gdsc: Keep RETAIN_FF bit set if gdsc is already on
  clk: qcom: Add display clock controller driver for SM8150 and SM8250
  dt-bindings: clock: add QCOM SM8150 and SM8250 display clock bindings
  clk: qcom: add video clock controller driver for SM8250
  clk: qcom: add video clock controller driver for SM8150
  dt-bindings: clock: add SM8250 QCOM video clock bindings
  dt-bindings: clock: add SM8150 QCOM video clock bindings
  dt-bindings: clock: combine qcom,sdm845-videocc and qcom,sc7180-videocc
  clk: qcom: gcc-msm8994: Add missing clocks, resets and GDSCs
  clk/qcom: fix spelling typo
  clk: qcom: gcc-sdm660: Fix wrong parent_map
  clk: qcom: dispcc: Update DP clk ops for phy design
  clk: qcom: gcc-msm8939: remove defined but not used variables
  clk: qcom: ipq8074: make pcie0_rchng_clk_src static

* clk-prima2:
  clk: clk-prima2: fix return value check in prima2_clk_init()

* clk-bcm:
  clk: bcm2835: add missing release if devm_clk_hw_register fails
  clk: bcm: rpi: Add register to control pixel bvb clk
2020-10-20 11:47:07 -07:00
Stephen Boyd
3ab9a54f76 Merge branches 'clk-simplify', 'clk-ti', 'clk-tegra', 'clk-rockchip' and 'clk-mediatek' into clk-next
- Small non-critical fixes for TI clk driver
 - Support Mediatek MT8167 clks

* clk-simplify:
  clk: mediatek: fix platform_no_drv_owner.cocci warnings
  clk: mediatek: mt7629: simplify the return expression of mtk_infrasys_init
  clk: mediatek: mt6797: simplify the return expression of mtk_infrasys_init

* clk-ti:
  clk: ti: dra7: add missing clkctrl register for SHA2 instance
  clk: ti: clockdomain: fix static checker warning
  clk: ti: autoidle: add checks against NULL pointer reference
  clk: keystone: sci-clk: add 10% slack to set_rate
  clk: keystone: sci-clk: cache results of last query rate operation
  clk: keystone: sci-clk: fix parsing assigned-clock data during probe

* clk-tegra:
  clk: tegra: Drop !provider check in tegra210_clk_emc_set_rate()

* clk-rockchip:
  clk: rockchip: Initialize hw to error to avoid undefined behavior
  clk: rockchip: rk3399: Support module build
  clk: rockchip: fix the clk config to support module build
  clk: rockchip: Export some clock common APIs for module drivers
  clk: rockchip: Export rockchip_register_softrst()
  clk: rockchip: Export rockchip_clk_register_ddrclk()
  clk: rockchip: Use clk_hw_register_composite instead of clk_register_composite calls
  clk: rockchip: rk3308: drop unused mux_timer_src_p

* clk-mediatek:
  clk: mediatek: Add MT8167 clock support
  dt-bindings: clock: mediatek: add bindings for MT8167 clocks
  clk: mediatek: add UART0 clock support
2020-10-20 11:46:47 -07:00
Stephen Boyd
9d3261628a Merge branches 'clk-renesas', 'clk-amlogic', 'clk-allwinner', 'clk-samsung', 'clk-doc' and 'clk-unused' into clk-next
- Remove various unused variables in clk drivers

* clk-renesas:
  clk: renesas: rcar-gen3: Update description for RZ/G2
  clk: renesas: cpg-mssr: Add support for R-Car V3U
  clk: renesas: cpg-mssr: Add register pointers into struct cpg_mssr_priv
  clk: renesas: cpg-mssr: Use enum clk_reg_layout instead of a boolean flag
  dt-bindings: clock: renesas,cpg-mssr: Document r8a779a0
  dt-bindings: clock: Add r8a779a0 CPG Core Clock Definitions
  dt-bindings: power: Add r8a779a0 SYSC power domain definitions
  clk: renesas: rcar-gen2: Rename vsp1-(sy|rt) clocks to vsp(s|r)
  clk: renesas: r8a7742: Add clk entry for VSPR

* clk-amlogic:
  clk: meson: make shipped controller configurable
  clk: meson: g12a: mark fclk_div2 as critical
  clk: meson: axg-audio: fix g12a tdmout sclk inverter
  clk: meson: axg-audio: separate axg and g12a regmap tables
  clk: meson: add sclk-ws driver

* clk-allwinner:
  clk: sunxi-ng: sun8i: r40: Use sigma delta modulation for audio PLL
  clk: sunxi-ng: add support for the Allwinner A100 CCU
  dt-bindings: clk: sunxi-ccu: add compatible string for A100 CCU and R-CCU

* clk-samsung:
  clk: s2mps11: initialize driver via module_platform_driver
  clk: samsung: Use cached clk_hws instead of __clk_lookup() calls
  clk: samsung: exynos5420/5250: Add IDs to the CPU parent clk definitions
  clk: samsung: Add clk ID definitions for the CPU parent clocks
  clk: samsung: exynos5420: Avoid __clk_lookup() calls when enabling clocks
  clk: samsung: exynos5420: Add definition of clock ID for mout_sw_aclk_g3d
  clk: samsung: Keep top BPLL mux on Exynos542x enabled

* clk-doc:
  clk: davinci: add missing kerneldoc
  clk: fixed: add missing kerneldoc

* clk-unused:
  clk: socfpga: agilex: Remove unused variable 'cntr_mux'
  clk: si5341: drop unused 'err' variable
  clk: mmp: pxa1928: drop unused 'clk' variable
  clk: at91: drop unused at91sam9g45_pcr_layout
2020-10-20 11:46:34 -07:00
Linus Torvalds
38525c6919 power supply and reset changes for the v5.10 series
power-supply core:
  * Add wireless type
  * Properly document current direction
 
 battery/charger driver changes:
  * New fuel-gauge/charger driver for RN5T618/RN5T619
  * New charger driver for BQ25980, BQ25975 and BQ25960
  * bq27xxx-battery: add support for TI bq34z100
  * gpio-charger: convert to GPIO descriptors
  * gpio-charger: add optional support for charge current limiting
  * max17040: add support for max17041, max17043, max17044
  * max17040: add support for max17048, max17049, max17058, max17059
  * smb347-charger: add DT support
  * smb247-charger: add SMB345 and SMB358 support
  * simple-battery: add temperature properties
  * lots of minor fixes, cleanups and DT binding YAML conversions
 
 reset drivers:
  * ocelot: Add support for Sparx5
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Merge tag 'for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Power-supply core:
   - add wireless type
   - properly document current direction

  Battery/charger driver changes:
   - new fuel-gauge/charger driver for RN5T618/RN5T619
   - new charger driver for BQ25980, BQ25975 and BQ25960
   - bq27xxx-battery: add support for TI bq34z100
   - gpio-charger: convert to GPIO descriptors
   - gpio-charger: add optional support for charge current limiting
   - max17040: add support for max17041, max17043, max17044
   - max17040: add support for max17048, max17049, max17058, max17059
   - smb347-charger: add DT support
   - smb247-charger: add SMB345 and SMB358 support
   - simple-battery: add temperature properties
   - lots of minor fixes, cleanups and DT binding YAML conversions

  Reset drivers:
   - ocelot: Add support for Sparx5"

* tag 'for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (81 commits)
  power: reset: POWER_RESET_OCELOT_RESET should depend on Ocelot or Sparx5
  power: supply: bq25980: Fix uninitialized wd_reg_val and overrun
  power: supply: ltc2941: Fix ptr to enum cast
  power: supply: test-power: revise parameter printing to use sprintf
  power: supply: charger-manager: fix incorrect check on charging_duration_ms
  power: supply: max17040: Fix ptr to enum cast
  power: supply: bq25980: Fix uninitialized wd_reg_val
  power: supply: bq25980: remove redundant zero check on ret
  power: reset: ocelot: Add support for Sparx5
  dt-bindings: reset: ocelot: Add Sparx5 support
  power: supply: sbs-battery: keep error code when get_property() fails
  power: supply: bq25980: Add support for the BQ259xx family
  dt-binding: bq25980: Add the bq25980 flash charger
  power: supply: fix spelling mistake "unprecise" -> "imprecise"
  power: supply: test_power: add missing newlines when printing parameters by sysfs
  power: supply: pm2301: drop duplicated i2c_device_id
  power: supply: charger-manager: drop unused charger assignment
  power: supply: rt9455: skip 'struct acpi_device_id' when !CONFIG_ACPI
  power: supply: goldfish: skip 'struct acpi_device_id' when !CONFIG_ACPI
  power: supply: bq25890: skip 'struct acpi_device_id' when !CONFIG_ACPI
  ...
2020-10-20 10:56:34 -07:00
Linus Torvalds
f9915b964c drm fixes for 5.10-rc1
i915:
 - Set all unused color plane offsets to ~0xfff again (Ville)
 - Fix TGL DKL PHY DP vswing handling (Ville)
 
 amdgpu:
 - DCN clang warning fix
 - eDP fix
 - BACO fix
 - Kernel documentation fixes
 - SMU7 mclk fix
 - VCN1 hw bug workaround
 
 amdkfd:
 - kvfree vs kfree fix
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Merge tag 'drm-next-2020-10-19' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Some fixes queued up already for i915 and amdgpu, I've also included
  the fix for the clang warning you've seen.

  i915:
   - set all unused color plane offsets to ~0xfff again (Ville)
   - fix TGL DKL PHY DP vswing handling (Ville)

  amdgpu:
   - DCN clang warning fix
   - eDP fix
   - BACO fix
   - kernel documentation fixes
   - SMU7 mclk fix
   - VCN1 hw bug workaround

  amdkfd:
   - kvfree vs kfree fix"

* tag 'drm-next-2020-10-19' of git://anongit.freedesktop.org/drm/drm:
  drm/amd/display: Fix incorrect dsc force enable logic
  drm/amdkfd: Use kvfree in destroy_crat_image
  drm/amdgpu: vcn and jpeg ring synchronization
  drm/amd/pm: increase mclk switch threshold to 200 us
  docs: amdgpu: fix a warning when building the documentation
  drm/amd/display: kernel-doc: document force_timing_sync
  drm/amdgpu/swsmu: init the baco mutex in early_init
  drm/amd/display: Fix module load hangs when connected to an eDP
  drm/i915: Set all unused color plane offsets to ~0xfff again
  drm/i915: Fix TGL DKL PHY DP vswing handling
2020-10-20 10:19:02 -07:00
Linus Torvalds
4a5bb973fa xen: branch for v5.10-rc1b
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Merge tag 'for-linus-5.10b-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull more xen updates from Juergen Gross:

 - A single patch to fix the Xen security issue XSA-331 (malicious
   guests can DoS dom0 by triggering NULL-pointer dereferences or access
   to stale data).

 - A larger series to fix the Xen security issue XSA-332 (malicious
   guests can DoS dom0 by sending events at high frequency leading to
   dom0's vcpus being busy in IRQ handling for elongated times).

* tag 'for-linus-5.10b-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/events: block rogue events for some time
  xen/events: defer eoi in case of excessive number of events
  xen/events: use a common cpu hotplug hook for event channels
  xen/events: switch user event channels to lateeoi model
  xen/pciback: use lateeoi irq binding
  xen/pvcallsback: use lateeoi irq binding
  xen/scsiback: use lateeoi irq binding
  xen/netback: use lateeoi irq binding
  xen/blkback: use lateeoi irq binding
  xen/events: add a new "late EOI" evtchn framework
  xen/events: fix race in evtchn_fifo_unmask()
  xen/events: add a proper barrier to 2-level uevent unmasking
  xen/events: avoid removing an event channel while handling it
2020-10-20 09:24:01 -07:00
Paolo Bonzini
1b21c8db0e KVM/arm64 updates for Linux 5.10
- New page table code for both hypervisor and guest stage-2
 - Introduction of a new EL2-private host context
 - Allow EL2 to have its own private per-CPU variables
 - Support of PMU event filtering
 - Complete rework of the Spectre mitigation
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Merge tag 'kvmarm-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 updates for Linux 5.10

- New page table code for both hypervisor and guest stage-2
- Introduction of a new EL2-private host context
- Allow EL2 to have its own private per-CPU variables
- Support of PMU event filtering
- Complete rework of the Spectre mitigation
2020-10-20 08:14:25 -04:00
Jeremy Sowden
64747d5ed1 docs: nf_flowtable: fix typo.
"mailined" should be "mainlined."

Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-10-20 13:54:53 +02:00
Juergen Gross
e99502f762 xen/events: defer eoi in case of excessive number of events
In case rogue guests are sending events at high frequency it might
happen that xen_evtchn_do_upcall() won't stop processing events in
dom0. As this is done in irq handling a crash might be the result.

In order to avoid that, delay further inter-domain events after some
time in xen_evtchn_do_upcall() by forcing eoi processing into a
worker on the same cpu, thus inhibiting new events coming in.

The time after which eoi processing is to be delayed is configurable
via a new module parameter "event_loop_timeout" which specifies the
maximum event loop time in jiffies (default: 2, the value was chosen
after some tests showing that a value of 2 was the lowest with an
only slight drop of dom0 network throughput while multiple guests
performed an event storm).

How long eoi processing will be delayed can be specified via another
parameter "event_eoi_delay" (again in jiffies, default 10, again the
value was chosen after testing with different delay values).

This is part of XSA-332.

Cc: stable@vger.kernel.org
Reported-by: Julien Grall <julien@xen.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Wei Liu <wl@xen.org>
2020-10-20 10:22:16 +02:00
Linus Torvalds
bbe85027ce Recalling the first round of new code for 5.10, in which we added:
- New feature: Widen inode timestamps and quota grace expiration
   timestamps to support dates through the year 2486.
 - New feature: storing inode btree counts in the AGI to speed up certain
   mount time per-AG block reservation operatoins and add a little more
   metadata redundancy.
 
 For the second round of new code for 5.10:
 - Deprecate the V4 filesystem format, some disused mount options, and some
   legacy sysctl knobs now that we can support dates into the 25th century.
   Note that removal of V4 support will not happen until the early 2030s.
 - Fix some probles with inode realtime flag propagation.
 - Fix some buffer handling issues when growing a rt filesystem.
 - Fix a problem where a BMAP_REMAP unmap call would free rt extents even
   though the purpose of BMAP_REMAP is to avoid freeing the blocks.
 - Strengthen the dabtree online scrubber to check hash values on child
   dabtree blocks.
 - Actually log new intent items created as part of recovering log intent
   items.
 - Fix a bug where quotas weren't attached to an inode undergoing bmap
   intent item recovery.
 - Fix a buffer overrun problem with specially crafted log buffer
   headers.
 - Various cleanups to type usage and slightly inaccurate comments.
 - More cleanups to the xattr, log, and quota code.
 - Don't run the (slower) shared-rmap operations on attr fork mappings.
 - Fix a bug where we failed to check the LSN of finobt blocks during
   replay and could therefore overwrite newer data with older data.
 - Clean up the ugly nested transaction mess that log recovery uses to
   stage intent item recovery in the correct order by creating a proper
   data structure to capture recovered chains.
 - Use the capture structure to resume intent item chains with the
   same log space and block reservations as when they were captured.
 - Fix a UAF bug in bmap intent item recovery where we failed to maintain
   our reference to the incore inode if the bmap operation needed to
   relog itself to continue.
 - Rearrange the defer ops mechanism to finish newly created subtasks
   of a parent task before moving on to the next parent task.
 - Automatically relog intent items in deferred ops chains if doing so
   would help us avoid pinning the log tail.  This will help fix some
   log scaling problems now and will facilitate atomic file updates later.
 - Fix a deadlock in the GETFSMAP implementation by using an internal
   memory buffer to reduce indirect calls and copies to userspace,
   thereby improving its performance by ~20%.
 - Fix various problems when calling growfs on a realtime volume would
   not fully update the filesystem metadata.
 - Fix broken Kconfig asking about deprecated XFS when XFS is disabled.
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Merge tag 'xfs-5.10-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull more xfs updates from Darrick Wong:
 "The second large pile of new stuff for 5.10, with changes even more
  monumental than last week!

  We are formally announcing the deprecation of the V4 filesystem format
  in 2030. All users must upgrade to the V5 format, which contains
  design improvements that greatly strengthen metadata validation,
  supports reflink and online fsck, and is the intended vehicle for
  handling timestamps past 2038. We're also deprecating the old Irix
  behavioral tweaks in September 2025.

  Coming along for the ride are two design changes to the deferred
  metadata ops subsystem. One of the improvements is to retain correct
  logical ordering of tasks and subtasks, which is a more logical design
  for upper layers of XFS and will become necessary when we add atomic
  file range swaps and commits. The second improvement to deferred ops
  improves the scalability of the log by helping the log tail to move
  forward during long-running operations. This reduces log contention
  when there are a large number of threads trying to run transactions.

  In addition to that, this fixes numerous small bugs in log recovery;
  refactors logical intent log item recovery to remove the last
  remaining place in XFS where we could have nested transactions; fixes
  a couple of ways that intent log item recovery could fail in ways that
  wouldn't have happened in the regular commit paths; fixes a deadlock
  vector in the GETFSMAP implementation (which improves its performance
  by 20%); and fixes serious bugs in the realtime growfs, fallocate, and
  bitmap handling code.

  Summary:

   - Deprecate the V4 filesystem format, some disused mount options, and
     some legacy sysctl knobs now that we can support dates into the
     25th century. Note that removal of V4 support will not happen until
     the early 2030s.

   - Fix some probles with inode realtime flag propagation.

   - Fix some buffer handling issues when growing a rt filesystem.

   - Fix a problem where a BMAP_REMAP unmap call would free rt extents
     even though the purpose of BMAP_REMAP is to avoid freeing the
     blocks.

   - Strengthen the dabtree online scrubber to check hash values on
     child dabtree blocks.

   - Actually log new intent items created as part of recovering log
     intent items.

   - Fix a bug where quotas weren't attached to an inode undergoing bmap
     intent item recovery.

   - Fix a buffer overrun problem with specially crafted log buffer
     headers.

   - Various cleanups to type usage and slightly inaccurate comments.

   - More cleanups to the xattr, log, and quota code.

   - Don't run the (slower) shared-rmap operations on attr fork
     mappings.

   - Fix a bug where we failed to check the LSN of finobt blocks during
     replay and could therefore overwrite newer data with older data.

   - Clean up the ugly nested transaction mess that log recovery uses to
     stage intent item recovery in the correct order by creating a
     proper data structure to capture recovered chains.

   - Use the capture structure to resume intent item chains with the
     same log space and block reservations as when they were captured.

   - Fix a UAF bug in bmap intent item recovery where we failed to
     maintain our reference to the incore inode if the bmap operation
     needed to relog itself to continue.

   - Rearrange the defer ops mechanism to finish newly created subtasks
     of a parent task before moving on to the next parent task.

   - Automatically relog intent items in deferred ops chains if doing so
     would help us avoid pinning the log tail. This will help fix some
     log scaling problems now and will facilitate atomic file updates
     later.

   - Fix a deadlock in the GETFSMAP implementation by using an internal
     memory buffer to reduce indirect calls and copies to userspace,
     thereby improving its performance by ~20%.

   - Fix various problems when calling growfs on a realtime volume would
     not fully update the filesystem metadata.

   - Fix broken Kconfig asking about deprecated XFS when XFS is
     disabled"

* tag 'xfs-5.10-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (48 commits)
  xfs: fix Kconfig asking about XFS_SUPPORT_V4 when XFS_FS=n
  xfs: fix high key handling in the rt allocator's query_range function
  xfs: annotate grabbing the realtime bitmap/summary locks in growfs
  xfs: make xfs_growfs_rt update secondary superblocks
  xfs: fix realtime bitmap/summary file truncation when growing rt volume
  xfs: fix the indent in xfs_trans_mod_dquot
  xfs: do the ASSERT for the arguments O_{u,g,p}dqpp
  xfs: fix deadlock and streamline xfs_getfsmap performance
  xfs: limit entries returned when counting fsmap records
  xfs: only relog deferred intent items if free space in the log gets low
  xfs: expose the log push threshold
  xfs: periodically relog deferred intent items
  xfs: change the order in which child and parent defer ops are finished
  xfs: fix an incore inode UAF in xfs_bui_recover
  xfs: clean up xfs_bui_item_recover iget/trans_alloc/ilock ordering
  xfs: clean up bmap intent item recovery checking
  xfs: xfs_defer_capture should absorb remaining transaction reservation
  xfs: xfs_defer_capture should absorb remaining block reservations
  xfs: proper replay of deferred ops queued during log recovery
  xfs: remove XFS_LI_RECOVERED
  ...
2020-10-19 14:38:46 -07:00
Linus Torvalds
694565356c fuse update for 5.10
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Merge tag 'fuse-update-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse updates from Miklos Szeredi:

 - Support directly accessing host page cache from virtiofs. This can
   improve I/O performance for various workloads, as well as reducing
   the memory requirement by eliminating double caching. Thanks to Vivek
   Goyal for doing most of the work on this.

 - Allow automatic submounting inside virtiofs. This allows unique
   st_dev/ st_ino values to be assigned inside the guest to files
   residing on different filesystems on the host. Thanks to Max Reitz
   for the patches.

 - Fix an old use after free bug found by Pradeep P V K.

* tag 'fuse-update-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (25 commits)
  virtiofs: calculate number of scatter-gather elements accurately
  fuse: connection remove fix
  fuse: implement crossmounts
  fuse: Allow fuse_fill_super_common() for submounts
  fuse: split fuse_mount off of fuse_conn
  fuse: drop fuse_conn parameter where possible
  fuse: store fuse_conn in fuse_req
  fuse: add submount support to <uapi/linux/fuse.h>
  fuse: fix page dereference after free
  virtiofs: add logic to free up a memory range
  virtiofs: maintain a list of busy elements
  virtiofs: serialize truncate/punch_hole and dax fault path
  virtiofs: define dax address space operations
  virtiofs: add DAX mmap support
  virtiofs: implement dax read/write operations
  virtiofs: introduce setupmapping/removemapping commands
  virtiofs: implement FUSE_INIT map_alignment field
  virtiofs: keep a list of free dax memory ranges
  virtiofs: add a mount option to enable dax
  virtiofs: set up virtio_fs dax_device
  ...
2020-10-19 14:28:30 -07:00
Linus Torvalds
922a763ae1 zonefs changes for 5.10
This pull request introduces the following changes to zonefs:
 
 * Add the "explicit-open" mount option to automatically issue a
   REQ_OP_ZONE_OPEN command to the device whenever a sequential zone file
   is open for writing for the first time. This avoids "insufficient zone
   resources" errors for write operations on some drives with limited
   zone resources or on ZNS drives with a limited number of active zones.
   From Johannes.
 
 Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
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Merge tag 'zonefs-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs

Pull zonefs updates from Damien Le Moal:
 "Add an 'explicit-open' mount option to automatically issue a
  REQ_OP_ZONE_OPEN command to the device whenever a sequential zone file
  is open for writing for the first time.

  This avoids 'insufficient zone resources' errors for write operations
  on some drives with limited zone resources or on ZNS drives with a
  limited number of active zones. From Johannes"

* tag 'zonefs-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: document the explicit-open mount option
  zonefs: open/close zone on file open/close
  zonefs: provide no-lock zonefs_io_error variant
  zonefs: introduce helper for zone management
2020-10-19 13:52:01 -07:00
Alexandre Belloni
5ebe59a505 dt-bindings: rtc: rv3032: add RV-3032 bindings
Document the Microcrystal RV-3032 device tree bindings

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201013144110.1942218-2-alexandre.belloni@bootlin.com
2020-10-19 22:47:56 +02:00
Alexandre Belloni
61ee0674bc dt-bindings: rtc: add trickle-voltage-millivolt
Some RTCs have a trickle charge that is able to output different voltages
depending on the type of the connected auxiliary power (battery, supercap,
...). Add a property allowing to specify the necessary voltage.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201013144110.1942218-1-alexandre.belloni@bootlin.com
2020-10-19 22:47:56 +02:00
Peilin Ye
eda4a7bf5d docs: fb: Add font_6x8 to available built-in fonts
Recently we added a new 6x8 font in commit e2028c8e6b ("lib/fonts: add
font 6x8 for OLED display"). Add its name to the "compiled-in fonts"
list.

Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201018205401.698242-1-yepeilin.cs@gmail.com
2020-10-19 17:50:25 +02:00
Dave Airlie
941947d29e Merge tag 'amd-drm-fixes-5.10-2020-10-14' of git://people.freedesktop.org/~agd5f/linux into drm-next
amd-drm-fixes-5.10-2020-10-14:

amdgpu:
- eDP fix
- BACO fix
- Kernel documentation fixes
- SMU7 mclk fix
- VCN1 hw bug workaround

amdkfd:
- kvfree vs kfree fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201014195403.4558-1-alexander.deucher@amd.com
2020-10-19 09:11:33 +10:00
Linus Torvalds
7cf726a594 linux-kselftest-kunit-5.10-rc1
This Kunit update for Linux 5.10-rc1 consists of:
 
 - add Kunit to kernel_init() and remove KUnit from init calls entirely.
   This addresses the concern Kunit would not work correctly during
   late init phase.
 - add a linker section where KUnit can put references to its test suites.
   This patch is the first step in transitioning to dispatching all KUnit
   tests from a centralized executor rather than having each as its own
   separate late_initcall.
 - add a centralized executor to dispatch tests rather than relying on
   late_initcall to schedule each test suite separately. Centralized
   execution is for built-in tests only; modules will execute tests when
   loaded.
 - convert bitfield test to use KUnit framework
 - Documentation updates for naming guidelines and how kunit_test_suite()
   works.
 - add test plan to KUnit TAP format
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Merge tag 'linux-kselftest-kunit-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull more Kunit updates from Shuah Khan:

 - add Kunit to kernel_init() and remove KUnit from init calls entirely.

   This addresses the concern that Kunit would not work correctly during
   late init phase.

 - add a linker section where KUnit can put references to its test
   suites.

   This is the first step in transitioning to dispatching all KUnit
   tests from a centralized executor rather than having each as its own
   separate late_initcall.

 - add a centralized executor to dispatch tests rather than relying on
   late_initcall to schedule each test suite separately. Centralized
   execution is for built-in tests only; modules will execute tests when
   loaded.

 - convert bitfield test to use KUnit framework

 - Documentation updates for naming guidelines and how
   kunit_test_suite() works.

 - add test plan to KUnit TAP format

* tag 'linux-kselftest-kunit-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE
  lib: kunit: add bitfield test conversion to KUnit
  Documentation: kunit: add a brief blurb about kunit_test_suite
  kunit: test: add test plan to KUnit TAP format
  init: main: add KUnit to kernel init
  kunit: test: create a single centralized executor for all tests
  vmlinux.lds.h: add linker section for KUnit test suites
  Documentation: kunit: Add naming guidelines
2020-10-18 14:45:59 -07:00
Linus Torvalds
41eea65e2a Merge tag 'core-rcu-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU changes from Ingo Molnar:

 - Debugging for smp_call_function()

 - RT raw/non-raw lock ordering fixes

 - Strict grace periods for KASAN

 - New smp_call_function() torture test

 - Torture-test updates

 - Documentation updates

 - Miscellaneous fixes

[ This doesn't actually pull the tag - I've dropped the last merge from
  the RCU branch due to questions about the series.   - Linus ]

* tag 'core-rcu-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits)
  smp: Make symbol 'csd_bug_count' static
  kernel/smp: Provide CSD lock timeout diagnostics
  smp: Add source and destination CPUs to __call_single_data
  rcu: Shrink each possible cpu krcp
  rcu/segcblist: Prevent useless GP start if no CBs to accelerate
  torture: Add gdb support
  rcutorture: Allow pointer leaks to test diagnostic code
  rcutorture: Hoist OOM registry up one level
  refperf: Avoid null pointer dereference when buf fails to allocate
  rcutorture: Properly synchronize with OOM notifier
  rcutorture: Properly set rcu_fwds for OOM handling
  torture: Add kvm.sh --help and update help message
  rcutorture: Add CONFIG_PROVE_RCU_LIST to TREE05
  torture: Update initrd documentation
  rcutorture: Replace HTTP links with HTTPS ones
  locktorture: Make function torture_percpu_rwsem_init() static
  torture: document --allcpus argument added to the kvm.sh script
  rcutorture: Output number of elapsed grace periods
  rcutorture: Remove KCSAN stubs
  rcu: Remove unused "cpu" parameter from rcu_report_qs_rdp()
  ...
2020-10-18 14:34:50 -07:00
Linus Torvalds
373014bb51 - arm: implementation of mhu as a doorbell driver
conversion of dt-bindings to json-schema
 - mediatek: fix platform_get_irq error handling
 - bcm: convert tasklets to use new tasklet_setup api
 - core: fix race cause by hrtimer starting inappropriately
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Merge tag 'mailbox-v5.10' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox updates from Jassi Brar:

 - arm: implementation of mhu as a doorbell driver and conversion of
   dt-bindings to json-schema

 - mediatek: fix platform_get_irq error handling

 - bcm: convert tasklets to use new tasklet_setup api

 - core: fix race cause by hrtimer starting inappropriately

* tag 'mailbox-v5.10' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox: avoid timer start from callback
  maiblox: mediatek: Fix handling of platform_get_irq() error
  mailbox: arm_mhu: Add ARM MHU doorbell driver
  mailbox: arm_mhu: Match only if compatible is "arm,mhu"
  dt-bindings: mailbox: add doorbell support to ARM MHU
  dt-bindings: mailbox : arm,mhu: Convert to Json-schema
  mailbox: bcm: convert tasklets to use new tasklet_setup() API
2020-10-18 14:29:19 -07:00
Linus Torvalds
a1e16bc7d5 RDMA 5.10 pull request
The typical set of driver updates across the subsystem:
 
  - Driver minor changes and bug fixes for mlx5, efa, rxe, vmw_pvrdma, hns,
    usnic, qib, qedr, cxgb4, hns, bnxt_re
 
  - Various rtrs fixes and updates
 
  - Bug fix for mlx4 CM emulation for virtualization scenarios where MRA
    wasn't working right
 
  - Use tracepoints instead of pr_debug in the CM code
 
  - Scrub the locking in ucma and cma to close more syzkaller bugs
 
  - Use tasklet_setup in the subsystem
 
  - Revert the idea that 'destroy' operations are not allowed to fail at
    the driver level. This proved unworkable from a HW perspective.
 
  - Revise how the umem API works so drivers make fewer mistakes using it
 
  - XRC support for qedr
 
  - Convert uverbs objects RWQ and MW to new the allocation scheme
 
  - Large queue entry sizes for hns
 
  - Use hmm_range_fault() for mlx5 On Demand Paging
 
  - uverbs APIs to inspect the GID table instead of sysfs
 
  - Move some of the RDMA code for building large page SGLs into
    lib/scatterlist
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "A usual cycle for RDMA with a typical mix of driver and core subsystem
  updates:

   - Driver minor changes and bug fixes for mlx5, efa, rxe, vmw_pvrdma,
     hns, usnic, qib, qedr, cxgb4, hns, bnxt_re

   - Various rtrs fixes and updates

   - Bug fix for mlx4 CM emulation for virtualization scenarios where
     MRA wasn't working right

   - Use tracepoints instead of pr_debug in the CM code

   - Scrub the locking in ucma and cma to close more syzkaller bugs

   - Use tasklet_setup in the subsystem

   - Revert the idea that 'destroy' operations are not allowed to fail
     at the driver level. This proved unworkable from a HW perspective.

   - Revise how the umem API works so drivers make fewer mistakes using
     it

   - XRC support for qedr

   - Convert uverbs objects RWQ and MW to new the allocation scheme

   - Large queue entry sizes for hns

   - Use hmm_range_fault() for mlx5 On Demand Paging

   - uverbs APIs to inspect the GID table instead of sysfs

   - Move some of the RDMA code for building large page SGLs into
     lib/scatterlist"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (191 commits)
  RDMA/ucma: Fix use after free in destroy id flow
  RDMA/rxe: Handle skb_clone() failure in rxe_recv.c
  RDMA/rxe: Move the definitions for rxe_av.network_type to uAPI
  RDMA: Explicitly pass in the dma_device to ib_register_device
  lib/scatterlist: Do not limit max_segment to PAGE_ALIGNED values
  IB/mlx4: Convert rej_tmout radix-tree to XArray
  RDMA/rxe: Fix bug rejecting all multicast packets
  RDMA/rxe: Fix skb lifetime in rxe_rcv_mcast_pkt()
  RDMA/rxe: Remove duplicate entries in struct rxe_mr
  IB/hfi,rdmavt,qib,opa_vnic: Update MAINTAINERS
  IB/rdmavt: Fix sizeof mismatch
  MAINTAINERS: CISCO VIC LOW LATENCY NIC DRIVER
  RDMA/bnxt_re: Fix sizeof mismatch for allocation of pbl_tbl.
  RDMA/bnxt_re: Use rdma_umem_for_each_dma_block()
  RDMA/umem: Move to allocate SG table from pages
  lib/scatterlist: Add support in dynamic allocation of SG table from pages
  tools/testing/scatterlist: Show errors in human readable form
  tools/testing/scatterlist: Rejuvenate bit-rotten test
  RDMA/ipoib: Set rtnl_link_ops for ipoib interfaces
  RDMA/uverbs: Expose the new GID query API to user space
  ...
2020-10-17 11:18:18 -07:00
Linus Torvalds
6f78b9acf0 NAND Core changes:
* Drop useless 'depends on' in Kconfig
 * Add an extra level in the Kconfig hierarchy
 * Trivial spellings
 * Dynamic allocation of the interface configurations
 * Dropping the default ONFI timing mode
 * Various cleanup (types, structures, naming, comments)
 * Hide the chip->data_interface indirection
 * Add the generic rb-gpios property
 * Add the ->choose_interface_config() hook
 * Introduce nand_choose_best_sdr_timings()
 * Use default values for tPROG_max and tBERS_max
 * Avoid redefining tR_max and tCCS_min
 * Add a helper to find the closest ONFI mode
 * bcm63xx MTD parsers: simplify CFE detection
 
 Raw NAND controller drivers changes:
 * fsl-upm: Deprecation of specific DT properties
 * fsl_upm: Driver rework and cleanup in favor of ->exec_op()
 * Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
 * brcmnand: ECC error handling on EDU transfers
 * brcmnand: Don't default to EDU transfers
 * qcom: Set BAM mode only if not set already
 * qcom: Avoid write to unavailable register
 * gpio: Driver rework in favor of ->exec_op()
 * tango: ->exec_op() conversion
 * mtk: ->exec_op() conversion
 
 Raw NAND chip drivers changes:
 * toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4
 * toshiba: Implement ->choose_interface_config() for TC58NVG0S3E
 * toshiba: Implement ->choose_interface_config() for TC58TEG5DCLTA00
 * hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC
 
 HyperBus changes:
 * DMA support for TI's AM654 HyperBus controller driver.
 * HyperBus frontend driver for Renesas RPC-IF driver.
 
 SPI NOR core changes:
 * Support for Winbond w25q64jwm flash
 * Enable 4K sector support for mx25l12805d
 
 SPI NOR controller drivers changes:
 * intel-spi Add Alder Lake-S PCI ID
 
 MTD Core changes:
 * mtdoops: Don't run panic write twice
 * mtdconcat: Correctly handle panic write
 * Use DEFINE_SHOW_ATTRIBUTE
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Merge tag 'mtd/for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Richard Weinberger:
 "NAND core changes:
   - Drop useless 'depends on' in Kconfig
   - Add an extra level in the Kconfig hierarchy
   - Trivial spellings
   - Dynamic allocation of the interface configurations
   - Dropping the default ONFI timing mode
   - Various cleanup (types, structures, naming, comments)
   - Hide the chip->data_interface indirection
   - Add the generic rb-gpios property
   - Add the ->choose_interface_config() hook
   - Introduce nand_choose_best_sdr_timings()
   - Use default values for tPROG_max and tBERS_max
   - Avoid redefining tR_max and tCCS_min
   - Add a helper to find the closest ONFI mode
   - bcm63xx MTD parsers: simplify CFE detection

  Raw NAND controller drivers changes:
   - fsl-upm: Deprecation of specific DT properties
   - fsl_upm: Driver rework and cleanup in favor of ->exec_op()
   - Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
   - brcmnand: ECC error handling on EDU transfers
   - brcmnand: Don't default to EDU transfers
   - qcom: Set BAM mode only if not set already
   - qcom: Avoid write to unavailable register
   - gpio: Driver rework in favor of ->exec_op()
   - tango: ->exec_op() conversion
   - mtk: ->exec_op() conversion

  Raw NAND chip drivers changes:
   - toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4
   - toshiba: Implement ->choose_interface_config() for TC58NVG0S3E
   - toshiba: Implement ->choose_interface_config() for TC58TEG5DCLTA00
   - hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC

  HyperBus changes:
   - DMA support for TI's AM654 HyperBus controller driver.
   - HyperBus frontend driver for Renesas RPC-IF driver.

  SPI NOR core changes:
   - Support for Winbond w25q64jwm flash
   - Enable 4K sector support for mx25l12805d

  SPI NOR controller drivers changes:
   - intel-spi Add Alder Lake-S PCI ID

  MTD Core changes:
   - mtdoops: Don't run panic write twice
   - mtdconcat: Correctly handle panic write
   - Use DEFINE_SHOW_ATTRIBUTE"

* tag 'mtd/for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (76 commits)
  mtd: hyperbus: Fix build failure when only RPCIF_HYPERBUS is enabled
  mtd: hyperbus: add Renesas RPC-IF driver
  Revert "mtd: spi-nor: Prefer asynchronous probe"
  mtd: parsers: bcm63xx: Do not make it modular
  mtd: spear_smi: Enable compile testing
  mtd: maps: vmu-flash: fix typos for struct memcard
  mtd: physmap: Add Baikal-T1 physically mapped ROM support
  mtd: maps: vmu-flash: simplify the return expression of probe_maple_vmu
  mtd: onenand: simplify the return expression of onenand_transfer_auto_oob
  mtd: rawnand: cadence: remove a redundant dev_err call
  mtd: rawnand: ams-delta: Fix non-OF build warning
  mtd: rawnand: Don't overwrite the error code from nand_set_ecc_soft_ops()
  mtd: rawnand: Introduce nand_set_ecc_on_host_ops()
  mtd: rawnand: atmel: Check return values for nand_read_data_op
  mtd: rawnand: vf610: Remove unused function vf610_nfc_transfer_size()
  mtd: rawnand: qcom: Simplify with dev_err_probe()
  mtd: rawnand: marvell: Fix and update kerneldoc
  mtd: rawnand: marvell: Simplify with dev_err_probe()
  mtd: rawnand: gpmi: Simplify with dev_err_probe()
  mtd: rawnand: atmel: Simplify with dev_err_probe()
  ...
2020-10-17 10:45:42 -07:00
Linus Torvalds
5a77b6a013 - Fix Kconfig typo "acces" -> "access" (Colin Ian King)
- Use dev_error_probe() to simplify the error handling on imx and imx8
   platforms (Anson Huang)
 
 - Use dedicated kobj_to_dev() instead of container_of() in the sysfs
   core code (Tian Tao)
 
 - Fix coding style by adding braces to a one line conditional
   statement on rcar (Geert Uytterhoeven)
 
 - Add DT binding documentation for the r8a774e1 platform and update
   the Kconfig description supporting RZ/G2 SoCs (Lad Prabhakar)
 
 - Simplify the return expression of stm_thermal_prepare on the stm32
   platform (Qinglang Miao)
 
 - Fix the unit in the function documentation for the idle injection
   cooling device (Zhuguang Qing)
 
 - Remove an unecessary mutex_init() in the core code (Qinglang Miao)
 
 - Add support for keep alive events in the core code and the specific
   int340x (Srinivas Pandruvada)
 
 - Remove unused thermal zone variable in devfreq and cpufreq cooling
   devices (Zhuguang Qing)
 
 - Add the A100's THS controller support (Yangtao Li)
 
 - Add power management on the omap3's bandgap sensor (Adam Ford)
 
 - Fix a missing nlmsg_free in the netlink core error path (Jing Xiangfeng)
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Merge tag 'thermal-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

Pull thermal updates from Daniel Lezcano:

 - Fix Kconfig typo "acces" -> "access" (Colin Ian King)

 - Use dev_error_probe() to simplify the error handling on imx and imx8
   platforms (Anson Huang)

 - Use dedicated kobj_to_dev() instead of container_of() in the sysfs
   core code (Tian Tao)

 - Fix coding style by adding braces to a one line conditional statement
   on rcar (Geert Uytterhoeven)

 - Add DT binding documentation for the r8a774e1 platform and update the
   Kconfig description supporting RZ/G2 SoCs (Lad Prabhakar)

 - Simplify the return expression of stm_thermal_prepare on the stm32
   platform (Qinglang Miao)

 - Fix the unit in the function documentation for the idle injection
   cooling device (Zhuguang Qing)

 - Remove an unecessary mutex_init() in the core code (Qinglang Miao)

 - Add support for keep alive events in the core code and the specific
   int340x (Srinivas Pandruvada)

 - Remove unused thermal zone variable in devfreq and cpufreq cooling
   devices (Zhuguang Qing)

 - Add the A100's THS controller support (Yangtao Li)

 - Add power management on the omap3's bandgap sensor (Adam Ford)

 - Fix a missing nlmsg_free in the netlink core error path (Jing
   Xiangfeng)

* tag 'thermal-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
  thermal: core: Adding missing nlmsg_free() in thermal_genl_sampling_temp()
  thermal: ti-soc-thermal: Enable addition power management
  thermal: sun8i: Add A100's THS controller support
  thermal: sun8i: add TEMP_CALIB_MASK for calibration data in sun50i_h6_ths_calibrate
  dt-bindings: thermal: sun8i: Add binding for A100's THS controller
  thermal: cooling: Remove unused variable *tz
  thermal: int340x: Add keep alive response method
  thermal: core: Add new event for sending keep alive notifications
  thermal: int340x: Provide notification for OEM variable change
  thermal: core: remove unnecessary mutex_init()
  thermal/idle_inject: Fix comment of idle_duration_us and name of latency_ns
  thermal: Kconfig: Update description for RCAR_GEN3_THERMAL config
  thermal: stm32: simplify the return expression of stm_thermal_prepare()
  dt-bindings: thermal: rcar-gen3-thermal: Add r8a774e1 support
  thermal: rcar_thermal: Add missing braces to conditional statement
  thermal: Use kobj_to_dev() instead of container_of()
  thermal: imx8mm: Use dev_err_probe() to simplify error handling
  thermal: imx: Use dev_err_probe() to simplify error handling
  drivers: thermal: Kconfig: fix spelling mistake "acces" -> "access"
2020-10-17 10:40:22 -07:00
Eric Dumazet
b38e7819ca icmp: randomize the global rate limiter
Keyu Man reported that the ICMP rate limiter could be used
by attackers to get useful signal. Details will be provided
in an upcoming academic publication.

Our solution is to add some noise, so that the attackers
no longer can get help from the predictable token bucket limiter.

Fixes: 4cdf507d54 ("icmp: add a global rate limitation")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Keyu Man <kman001@ucr.edu>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-16 16:47:09 -07:00
Linus Torvalds
071a0578b0 overlayfs update for 5.10
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Merge tag 'ovl-update-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

Pull overlayfs updates from Miklos Szeredi:

 - Improve performance for certain container setups by introducing a
   "volatile" mode

 - ioctl improvements

 - continue preparation for unprivileged overlay mounts

* tag 'ovl-update-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: use generic vfs_ioc_setflags_prepare() helper
  ovl: support [S|G]ETFLAGS and FS[S|G]ETXATTR ioctls for directories
  ovl: rearrange ovl_can_list()
  ovl: enumerate private xattrs
  ovl: pass ovl_fs down to functions accessing private xattrs
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  ovl: adhere to the vfs_ vs. ovl_do_ conventions for xattrs
  ovl: use ovl_do_getxattr() for private xattr
  ovl: fold ovl_getxattr() into ovl_get_redirect_xattr()
  ovl: clean up ovl_getxattr() in copy_up.c
  duplicate ovl_getxattr()
  ovl: provide a mount option "volatile"
  ovl: check for incompatible features in work dir
2020-10-16 15:29:46 -07:00
Linus Torvalds
7a3dadedc8 f2fs-for-5.10-rc1
In this round, we've added new features such as zone capacity for ZNS and
 a new GC policy, ATGC, along with in-memory segment management. In addition,
 we could improve the decompression speed significantly by changing virtual
 mapping method. Even though we've fixed lots of small bugs in compression
 support, I feel that it becomes more stable so that I could give it a try in
 production.
 
 Enhancement:
  - suport zone capacity in NVMe Zoned Namespace devices
  - introduce in-memory current segment management
  - add standart casefolding support
  - support age threshold based garbage collection
  - improve decompression speed by changing virtual mapping method
 
 Bug fix:
  - fix condition checks in some ioctl() such as compression, move_range, etc
  - fix 32/64bits support in data structures
  - fix memory allocation in zstd decompress
  - add some boundary checks to avoid kernel panic on corrupted image
  - fix disallowing compression for non-empty file
  - fix slab leakage of compressed block writes
 
 In addition, it includes code refactoring for better readability and minor
 bug fixes for compression and zoned device support.
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Merge tag 'f2fs-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've added new features such as zone capacity for ZNS
  and a new GC policy, ATGC, along with in-memory segment management. In
  addition, we could improve the decompression speed significantly by
  changing virtual mapping method. Even though we've fixed lots of small
  bugs in compression support, I feel that it becomes more stable so
  that I could give it a try in production.

  Enhancements:
   - suport zone capacity in NVMe Zoned Namespace devices
   - introduce in-memory current segment management
   - add standart casefolding support
   - support age threshold based garbage collection
   - improve decompression speed by changing virtual mapping method

  Bug fixes:
   - fix condition checks in some ioctl() such as compression, move_range, etc
   - fix 32/64bits support in data structures
   - fix memory allocation in zstd decompress
   - add some boundary checks to avoid kernel panic on corrupted image
   - fix disallowing compression for non-empty file
   - fix slab leakage of compressed block writes

  In addition, it includes code refactoring for better readability and
  minor bug fixes for compression and zoned device support"

* tag 'f2fs-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (51 commits)
  f2fs: code cleanup by removing unnecessary check
  f2fs: wait for sysfs kobject removal before freeing f2fs_sb_info
  f2fs: fix writecount false positive in releasing compress blocks
  f2fs: introduce check_swap_activate_fast()
  f2fs: don't issue flush in f2fs_flush_device_cache() for nobarrier case
  f2fs: handle errors of f2fs_get_meta_page_nofail
  f2fs: fix to set SBI_NEED_FSCK flag for inconsistent inode
  f2fs: reject CASEFOLD inode flag without casefold feature
  f2fs: fix memory alignment to support 32bit
  f2fs: fix slab leak of rpages pointer
  f2fs: compress: fix to disallow enabling compress on non-empty file
  f2fs: compress: introduce cic/dic slab cache
  f2fs: compress: introduce page array slab cache
  f2fs: fix to do sanity check on segment/section count
  f2fs: fix to check segment boundary during SIT page readahead
  f2fs: fix uninit-value in f2fs_lookup
  f2fs: remove unneeded parameter in find_in_block()
  f2fs: fix wrong total_sections check and fsmeta check
  f2fs: remove duplicated code in sanity_check_area_boundary
  f2fs: remove unused check on version_bitmap
  ...
2020-10-16 15:14:43 -07:00
Linus Torvalds
54a4c789ca docs updates for v5.10-rc1
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Merge tag 'docs/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull documentation updates from Mauro Carvalho Chehab:
 "A series of patches addressing warnings produced by make htmldocs.
  This includes:

   - kernel-doc markup fixes

   - ReST fixes

   - Updates at the build system in order to support newer versions of
     the docs build toolchain (Sphinx)

  After this series, the number of html build warnings should reduce
  significantly, and building with Sphinx 3.1 or later should now be
  supported (although it is still recommended to use Sphinx 2.4.4).

  As agreed with Jon, I should be sending you a late pull request by the
  end of the merge window addressing remaining issues with docs build,
  as there are a number of warning fixes that depends on pull requests
  that should be happening along the merge window.

  The end goal is to have a clean htmldocs build on Kernel 5.10.

  PS. It should be noticed that Sphinx 3.0 is not currently supported,
  as it lacks support for C domain namespaces. Such feature, needed in
  order to document uAPI system calls with Sphinx 3.x, was added only on
  Sphinx 3.1"

* tag 'docs/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (75 commits)
  PM / devfreq: remove a duplicated kernel-doc markup
  mm/doc: fix a literal block markup
  workqueue: fix a kernel-doc warning
  docs: virt: user_mode_linux_howto_v2.rst: fix a literal block markup
  Input: sparse-keymap: add a description for @sw
  rcu/tree: docs: document bkvcache new members at struct kfree_rcu_cpu
  nl80211: docs: add a description for s1g_cap parameter
  usb: docs: document altmode register/unregister functions
  kunit: test.h: fix a bad kernel-doc markup
  drivers: core: fix kernel-doc markup for dev_err_probe()
  docs: bio: fix a kerneldoc markup
  kunit: test.h: solve kernel-doc warnings
  block: bio: fix a warning at the kernel-doc markups
  docs: powerpc: syscall64-abi.rst: fix a malformed table
  drivers: net: hamradio: fix document location
  net: appletalk: Kconfig: Fix docs location
  dt-bindings: fix references to files converted to yaml
  memblock: get rid of a :c:type leftover
  math64.h: kernel-docs: Convert some markups into normal comments
  media: uAPI: buffer.rst: remove a left-over documentation
  ...
2020-10-16 15:02:21 -07:00
Linus Torvalds
09a31a7e37 MIPS updates for v5.10:
- removed support for PNX833x alias NXT_STB22x
 - included Ingenic SoC support into generic MIPS kernels
 - added support for new Ingenic SoCs
 - converted workaround selection to use Kconfig
 - replaced old boot mem functions by memblock_*
 - enabled COP2 usage in kernel for Loongson64 to make usage
   of usage of 16byte load/stores possible
 - cleanups and fixes
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Merge tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - removed support for PNX833x alias NXT_STB22x

 - included Ingenic SoC support into generic MIPS kernels

 - added support for new Ingenic SoCs

 - converted workaround selection to use Kconfig

 - replaced old boot mem functions by memblock_*

 - enabled COP2 usage in kernel for Loongson64 to make use
   of 16byte load/stores possible

 - cleanups and fixes

* tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (92 commits)
  MIPS: DEC: Restore bootmem reservation for firmware working memory area
  MIPS: dec: fix section mismatch
  bcm963xx_tag.h: fix duplicated word
  mips: ralink: enable zboot support
  MIPS: ingenic: Remove CPU_SUPPORTS_HUGEPAGES
  MIPS: cpu-probe: remove MIPS_CPU_BP_GHIST option bit
  MIPS: cpu-probe: introduce exclusive R3k CPU probe
  MIPS: cpu-probe: move fpu probing/handling into its own file
  MIPS: replace add_memory_region with memblock
  MIPS: Loongson64: Clean up numa.c
  MIPS: Loongson64: Select SMP in Kconfig to avoid build error
  mips: octeon: Add Ubiquiti E200 and E220 boards
  MIPS: SGI-IP28: disable use of ll/sc in kernel
  MIPS: tx49xx: move tx4939_add_memory_regions into only user
  MIPS: pgtable: Remove used PAGE_USERIO define
  MIPS: alchemy: Share prom_init implementation
  MIPS: alchemy: Fix build breakage, if TOUCHSCREEN_WM97XX is disabled
  MIPS: process: include exec.h header in process.c
  MIPS: process: Add prototype for function arch_dup_task_struct
  MIPS: idle: Add prototype for function check_wait
  ...
2020-10-16 12:40:55 -07:00
Linus Torvalds
847d4287a0 s390 updates for the 5.10 merge window
- Remove address space overrides using set_fs().
 
 - Convert to generic vDSO.
 
 - Convert to generic page table dumper.
 
 - Add ARCH_HAS_DEBUG_WX support.
 
 - Add leap seconds handling support.
 
 - Add NVMe firmware-assisted kernel dump support.
 
 - Extend NVMe boot support with memory clearing control and addition of
   kernel parameters.
 
 - AP bus and zcrypt api code rework. Add adapter configure/deconfigure
   interface. Extend debug features. Add failure injection support.
 
 - Add ECC secure private keys support.
 
 - Add KASan support for running protected virtualization host with
   4-level paging.
 
 - Utilize destroy page ultravisor call to speed up secure guests shutdown.
 
 - Implement ioremap_wc() and ioremap_prot() with MIO in PCI code.
 
 - Various checksum improvements.
 
 - Other small various fixes and improvements all over the code.
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Merge tag 's390-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Remove address space overrides using set_fs()

 - Convert to generic vDSO

 - Convert to generic page table dumper

 - Add ARCH_HAS_DEBUG_WX support

 - Add leap seconds handling support

 - Add NVMe firmware-assisted kernel dump support

 - Extend NVMe boot support with memory clearing control and addition of
   kernel parameters

 - AP bus and zcrypt api code rework. Add adapter configure/deconfigure
   interface. Extend debug features. Add failure injection support

 - Add ECC secure private keys support

 - Add KASan support for running protected virtualization host with
   4-level paging

 - Utilize destroy page ultravisor call to speed up secure guests
   shutdown

 - Implement ioremap_wc() and ioremap_prot() with MIO in PCI code

 - Various checksum improvements

 - Other small various fixes and improvements all over the code

* tag 's390-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (85 commits)
  s390/uaccess: fix indentation
  s390/uaccess: add default cases for __put_user_fn()/__get_user_fn()
  s390/zcrypt: fix wrong format specifications
  s390/kprobes: move insn_page to text segment
  s390/sie: fix typo in SIGP code description
  s390/lib: fix kernel doc for memcmp()
  s390/zcrypt: Introduce Failure Injection feature
  s390/zcrypt: move ap_msg param one level up the call chain
  s390/ap/zcrypt: revisit ap and zcrypt error handling
  s390/ap: Support AP card SCLP config and deconfig operations
  s390/sclp: Add support for SCLP AP adapter config/deconfig
  s390/ap: add card/queue deconfig state
  s390/ap: add error response code field for ap queue devices
  s390/ap: split ap queue state machine state from device state
  s390/zcrypt: New config switch CONFIG_ZCRYPT_DEBUG
  s390/zcrypt: introduce msg tracking in zcrypt functions
  s390/startup: correct early pgm check info formatting
  s390: remove orphaned extern variables declarations
  s390/kasan: make sure int handler always run with DAT on
  s390/ipl: add support to control memory clearing for nvme re-IPL
  ...
2020-10-16 12:36:38 -07:00
Linus Torvalds
96685f8666 powerpc updates for 5.10
- A series from Nick adding ARCH_WANT_IRQS_OFF_ACTIVATE_MM & selecting it for
    powerpc, as well as a related fix for sparc.
 
  - Remove support for PowerPC 601.
 
  - Some fixes for watchpoints & addition of a new ptrace flag for detecting ISA
    v3.1 (Power10) watchpoint features.
 
  - A fix for kernels using 4K pages and the hash MMU on bare metal Power9
    systems with > 16TB of RAM, or RAM on the 2nd node.
 
  - A basic idle driver for shallow stop states on Power10.
 
  - Tweaks to our sched domains code to better inform the scheduler about the
    hardware topology on Power9/10, where two SMT4 cores can be presented by
    firmware as an SMT8 core.
 
  - A series doing further reworks & cleanups of our EEH code.
 
  - Addition of a filter for RTAS (firmware) calls done via sys_rtas(), to
    prevent root from overwriting kernel memory.
 
  - Other smaller features, fixes & cleanups.
 
 Thanks to:
   Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Athira Rajeev, Biwen
   Li, Cameron Berkenpas, Cédric Le Goater, Christophe Leroy, Christoph Hellwig,
   Colin Ian King, Daniel Axtens, David Dai, Finn Thain, Frederic Barrat, Gautham
   R. Shenoy, Greg Kurz, Gustavo Romero, Ira Weiny, Jason Yan, Joel Stanley,
   Jordan Niethe, Kajol Jain, Konrad Rzeszutek Wilk, Laurent Dufour, Leonardo
   Bras, Liu Shixin, Luca Ceresoli, Madhavan Srinivasan, Mahesh Salgaonkar,
   Nathan Lynch, Nicholas Mc Guire, Nicholas Piggin, Nick Desaulniers, Oliver
   O'Halloran, Pedro Miraglia Franco de Carvalho, Pratik Rajesh Sampat, Qian Cai,
   Qinglang Miao, Ravi Bangoria, Russell Currey, Satheesh Rajendran, Scott
   Cheloha, Segher Boessenkool, Srikar Dronamraju, Stan Johnson, Stephen Kitt,
   Stephen Rothwell, Thiago Jung Bauermann, Tyrel Datwyler, Vaibhav Jain,
   Vaidyanathan Srinivasan, Vasant Hegde, Wang Wensheng, Wolfram Sang, Yang
   Yingliang, zhengbin.
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Merge tag 'powerpc-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - A series from Nick adding ARCH_WANT_IRQS_OFF_ACTIVATE_MM & selecting
   it for powerpc, as well as a related fix for sparc.

 - Remove support for PowerPC 601.

 - Some fixes for watchpoints & addition of a new ptrace flag for
   detecting ISA v3.1 (Power10) watchpoint features.

 - A fix for kernels using 4K pages and the hash MMU on bare metal
   Power9 systems with > 16TB of RAM, or RAM on the 2nd node.

 - A basic idle driver for shallow stop states on Power10.

 - Tweaks to our sched domains code to better inform the scheduler about
   the hardware topology on Power9/10, where two SMT4 cores can be
   presented by firmware as an SMT8 core.

 - A series doing further reworks & cleanups of our EEH code.

 - Addition of a filter for RTAS (firmware) calls done via sys_rtas(),
   to prevent root from overwriting kernel memory.

 - Other smaller features, fixes & cleanups.

Thanks to: Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V,
Athira Rajeev, Biwen Li, Cameron Berkenpas, Cédric Le Goater, Christophe
Leroy, Christoph Hellwig, Colin Ian King, Daniel Axtens, David Dai, Finn
Thain, Frederic Barrat, Gautham R. Shenoy, Greg Kurz, Gustavo Romero,
Ira Weiny, Jason Yan, Joel Stanley, Jordan Niethe, Kajol Jain, Konrad
Rzeszutek Wilk, Laurent Dufour, Leonardo Bras, Liu Shixin, Luca
Ceresoli, Madhavan Srinivasan, Mahesh Salgaonkar, Nathan Lynch, Nicholas
Mc Guire, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Pedro
Miraglia Franco de Carvalho, Pratik Rajesh Sampat, Qian Cai, Qinglang
Miao, Ravi Bangoria, Russell Currey, Satheesh Rajendran, Scott Cheloha,
Segher Boessenkool, Srikar Dronamraju, Stan Johnson, Stephen Kitt,
Stephen Rothwell, Thiago Jung Bauermann, Tyrel Datwyler, Vaibhav Jain,
Vaidyanathan Srinivasan, Vasant Hegde, Wang Wensheng, Wolfram Sang, Yang
Yingliang, zhengbin.

* tag 'powerpc-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (228 commits)
  Revert "powerpc/pci: unmap legacy INTx interrupts when a PHB is removed"
  selftests/powerpc: Fix eeh-basic.sh exit codes
  cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_reboot_notifier
  powerpc/time: Make get_tb() common to PPC32 and PPC64
  powerpc/time: Make get_tbl() common to PPC32 and PPC64
  powerpc/time: Remove get_tbu()
  powerpc/time: Avoid using get_tbl() and get_tbu() internally
  powerpc/time: Make mftb() common to PPC32 and PPC64
  powerpc/time: Rename mftbl() to mftb()
  powerpc/32s: Remove #ifdef CONFIG_PPC_BOOK3S_32 in head_book3s_32.S
  powerpc/32s: Rename head_32.S to head_book3s_32.S
  powerpc/32s: Setup the early hash table at all time.
  powerpc/time: Remove ifdef in get_dec() and set_dec()
  powerpc: Remove get_tb_or_rtc()
  powerpc: Remove __USE_RTC()
  powerpc: Tidy up a bit after removal of PowerPC 601.
  powerpc: Remove support for PowerPC 601
  powerpc: Remove PowerPC 601
  powerpc: Drop SYNC_601() ISYNC_601() and SYNC()
  powerpc: Remove CONFIG_PPC601_SYNC_FIX
  ...
2020-10-16 12:21:15 -07:00
Linus Torvalds
c4cf498dc0 Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
 "155 patches.

  Subsystems affected by this patch series: mm (dax, debug, thp,
  readahead, page-poison, util, memory-hotplug, zram, cleanups), misc,
  core-kernel, get_maintainer, MAINTAINERS, lib, bitops, checkpatch,
  binfmt, ramfs, autofs, nilfs, rapidio, panic, relay, kgdb, ubsan,
  romfs, and fault-injection"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (155 commits)
  lib, uaccess: add failure injection to usercopy functions
  lib, include/linux: add usercopy failure capability
  ROMFS: support inode blocks calculation
  ubsan: introduce CONFIG_UBSAN_LOCAL_BOUNDS for Clang
  sched.h: drop in_ubsan field when UBSAN is in trap mode
  scripts/gdb/tasks: add headers and improve spacing format
  scripts/gdb/proc: add struct mount & struct super_block addr in lx-mounts command
  kernel/relay.c: drop unneeded initialization
  panic: dump registers on panic_on_warn
  rapidio: fix the missed put_device() for rio_mport_add_riodev
  rapidio: fix error handling path
  nilfs2: fix some kernel-doc warnings for nilfs2
  autofs: harden ioctl table
  ramfs: fix nommu mmap with gaps in the page cache
  mm: remove the now-unnecessary mmget_still_valid() hack
  mm/gup: take mmap_lock in get_dump_page()
  binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot
  coredump: rework elf/elf_fdpic vma_dump_size() into common helper
  coredump: refactor page range dumping into common helper
  coredump: let dump_emit() bail out on short writes
  ...
2020-10-16 11:31:55 -07:00
Albert van der Linde
2c739ced58 lib, include/linux: add usercopy failure capability
Patch series "add fault injection to user memory access", v3.

The goal of this series is to improve testing of fault-tolerance in usages
of user memory access functions, by adding support for fault injection.

syzkaller/syzbot are using the existing fault injection modes and will use
this particular feature also.

The first patch adds failure injection capability for usercopy functions.
The second changes usercopy functions to use this new failure capability
(copy_from_user, ...).  The third patch adds get/put/clear_user failures
to x86.

This patch (of 3):

Add a failure injection capability to improve testing of fault-tolerance
in usages of user memory access functions.

Add CONFIG_FAULT_INJECTION_USERCOPY to enable faults in usercopy
functions.  The should_fail_usercopy function is to be called by these
functions (copy_from_user, get_user, ...) in order to fail or not.

Signed-off-by: Albert van der Linde <alinde@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20200831171733.955393-1-alinde@google.com
Link: http://lkml.kernel.org/r/20200831171733.955393-2-alinde@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-16 11:11:22 -07:00
Matthew Wilcox (Oracle)
8fc75643c5 XArray: add xas_split
In order to use multi-index entries for huge pages in the page cache, we
need to be able to split a multi-index entry (eg if a file is truncated in
the middle of a huge page entry).  This version does not support splitting
more than one level of the tree at a time.  This is an acceptable
limitation for the page cache as we do not expect to support order-12
pages in the near future.

[akpm@linux-foundation.org: export xas_split_alloc() to modules]
[willy@infradead.org: fix xarray split]
  Link: https://lkml.kernel.org/r/20200910175450.GV6583@casper.infradead.org
[willy@infradead.org: fix xarray]
  Link: https://lkml.kernel.org/r/20201001233943.GW20115@casper.infradead.org

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Qian Cai <cai@lca.pw>
Cc: Song Liu <songliubraving@fb.com>
Link: https://lkml.kernel.org/r/20200903183029.14930-3-willy@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-16 11:11:15 -07:00
Jason Gunthorpe
16e7483e6f Merge branch 'dynamic_sg' into rdma.git for-next
From Maor Gottlieb says:

====================
This series extends __sg_alloc_table_from_pages to allow chaining of new
pages to an already initialized SG table.

This allows for drivers to utilize the optimization of merging contiguous
pages without a need to pre allocate all the pages and hold them in a very
large temporary buffer prior to the call to SG table initialization.

The last patch changes the Infiniband core to use the new API. It removes
duplicate functionality from the code and benefits from the optimization
of allocating dynamic SG table from pages.

In huge pages system of 2MB page size, without this change, the SG table
would contain x512 SG entries.
====================

* branch 'dynamic_sg':
  RDMA/umem: Move to allocate SG table from pages
  lib/scatterlist: Add support in dynamic allocation of SG table from pages
  tools/testing/scatterlist: Show errors in human readable form
  tools/testing/scatterlist: Rejuvenate bit-rotten test
2020-10-16 12:40:58 -03:00
Mauro Carvalho Chehab
f910ce5266 mm/doc: fix a literal block markup
Literal blocks with :: markup should be indented, as otherwise
Sphinx complains:

	Documentation/vm/hmm.rst:363: WARNING: Literal block expected; none found.

Fixes: f7ebd9ed77 ("mm/doc: add usage description for migrate_vma_*()")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-16 07:28:20 +02:00
Mauro Carvalho Chehab
c88773dcc6 docs: virt: user_mode_linux_howto_v2.rst: fix a literal block markup
There's a missing new line for a literal block:

	.../Documentation/virt/uml/user_mode_linux_howto_v2.rst:682: WARNING: Unexpected indentation.

Fixes: 04301bf5b0 ("docs: replace the old User Mode Linux HowTo with a new one")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-16 07:28:20 +02:00
Linus Torvalds
9ff9b0d392 networking changes for the 5.10 merge window
Add redirect_neigh() BPF packet redirect helper, allowing to limit stack
 traversal in common container configs and improving TCP back-pressure.
 Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.
 
 Expand netlink policy support and improve policy export to user space.
 (Ge)netlink core performs request validation according to declared
 policies. Expand the expressiveness of those policies (min/max length
 and bitmasks). Allow dumping policies for particular commands.
 This is used for feature discovery by user space (instead of kernel
 version parsing or trial and error).
 
 Support IGMPv3/MLDv2 multicast listener discovery protocols in bridge.
 
 Allow more than 255 IPv4 multicast interfaces.
 
 Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
 packets of TCPv6.
 
 In Multi-patch TCP (MPTCP) support concurrent transmission of data
 on multiple subflows in a load balancing scenario. Enhance advertising
 addresses via the RM_ADDR/ADD_ADDR options.
 
 Support SMC-Dv2 version of SMC, which enables multi-subnet deployments.
 
 Allow more calls to same peer in RxRPC.
 
 Support two new Controller Area Network (CAN) protocols -
 CAN-FD and ISO 15765-2:2016.
 
 Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
 kernel problem.
 
 Add TC actions for implementing MPLS L2 VPNs.
 
 Improve nexthop code - e.g. handle various corner cases when nexthop
 objects are removed from groups better, skip unnecessary notifications
 and make it easier to offload nexthops into HW by converting
 to a blocking notifier.
 
 Support adding and consuming TCP header options by BPF programs,
 opening the doors for easy experimental and deployment-specific
 TCP option use.
 
 Reorganize TCP congestion control (CC) initialization to simplify life
 of TCP CC implemented in BPF.
 
 Add support for shipping BPF programs with the kernel and loading them
 early on boot via the User Mode Driver mechanism, hence reusing all the
 user space infra we have.
 
 Support sleepable BPF programs, initially targeting LSM and tracing.
 
 Add bpf_d_path() helper for returning full path for given 'struct path'.
 
 Make bpf_tail_call compatible with bpf-to-bpf calls.
 
 Allow BPF programs to call map_update_elem on sockmaps.
 
 Add BPF Type Format (BTF) support for type and enum discovery, as
 well as support for using BTF within the kernel itself (current use
 is for pretty printing structures).
 
 Support listing and getting information about bpf_links via the bpf
 syscall.
 
 Enhance kernel interfaces around NIC firmware update. Allow specifying
 overwrite mask to control if settings etc. are reset during update;
 report expected max time operation may take to users; support firmware
 activation without machine reboot incl. limits of how much impact
 reset may have (e.g. dropping link or not).
 
 Extend ethtool configuration interface to report IEEE-standard
 counters, to limit the need for per-vendor logic in user space.
 
 Adopt or extend devlink use for debug, monitoring, fw update
 in many drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw,
 mv88e6xxx, dpaa2-eth).
 
 In mlxsw expose critical and emergency SFP module temperature alarms.
 Refactor port buffer handling to make the defaults more suitable and
 support setting these values explicitly via the DCBNL interface.
 
 Add XDP support for Intel's igb driver.
 
 Support offloading TC flower classification and filtering rules to
 mscc_ocelot switches.
 
 Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
 fixed interval period pulse generator and one-step timestamping in
 dpaa-eth.
 
 Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
 offload.
 
 Add Lynx PHY/PCS MDIO module, and convert various drivers which have
 this HW to use it. Convert mvpp2 to split PCS.
 
 Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
 7-port Mediatek MT7531 IP.
 
 Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
 and wcn3680 support in wcn36xx.
 
 Improve performance for packets which don't require much offloads
 on recent Mellanox NICs by 20% by making multiple packets share
 a descriptor entry.
 
 Move chelsio inline crypto drivers (for TLS and IPsec) from the crypto
 subtree to drivers/net. Move MDIO drivers out of the phy directory.
 
 Clean up a lot of W=1 warnings, reportedly the actively developed
 subsections of networking drivers should now build W=1 warning free.
 
 Make sure drivers don't use in_interrupt() to dynamically adapt their
 code. Convert tasklets to use new tasklet_setup API (sadly this
 conversion is not yet complete).
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:

 - Add redirect_neigh() BPF packet redirect helper, allowing to limit
   stack traversal in common container configs and improving TCP
   back-pressure.

   Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.

 - Expand netlink policy support and improve policy export to user
   space. (Ge)netlink core performs request validation according to
   declared policies. Expand the expressiveness of those policies
   (min/max length and bitmasks). Allow dumping policies for particular
   commands. This is used for feature discovery by user space (instead
   of kernel version parsing or trial and error).

 - Support IGMPv3/MLDv2 multicast listener discovery protocols in
   bridge.

 - Allow more than 255 IPv4 multicast interfaces.

 - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
   packets of TCPv6.

 - In Multi-patch TCP (MPTCP) support concurrent transmission of data on
   multiple subflows in a load balancing scenario. Enhance advertising
   addresses via the RM_ADDR/ADD_ADDR options.

 - Support SMC-Dv2 version of SMC, which enables multi-subnet
   deployments.

 - Allow more calls to same peer in RxRPC.

 - Support two new Controller Area Network (CAN) protocols - CAN-FD and
   ISO 15765-2:2016.

 - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
   kernel problem.

 - Add TC actions for implementing MPLS L2 VPNs.

 - Improve nexthop code - e.g. handle various corner cases when nexthop
   objects are removed from groups better, skip unnecessary
   notifications and make it easier to offload nexthops into HW by
   converting to a blocking notifier.

 - Support adding and consuming TCP header options by BPF programs,
   opening the doors for easy experimental and deployment-specific TCP
   option use.

 - Reorganize TCP congestion control (CC) initialization to simplify
   life of TCP CC implemented in BPF.

 - Add support for shipping BPF programs with the kernel and loading
   them early on boot via the User Mode Driver mechanism, hence reusing
   all the user space infra we have.

 - Support sleepable BPF programs, initially targeting LSM and tracing.

 - Add bpf_d_path() helper for returning full path for given 'struct
   path'.

 - Make bpf_tail_call compatible with bpf-to-bpf calls.

 - Allow BPF programs to call map_update_elem on sockmaps.

 - Add BPF Type Format (BTF) support for type and enum discovery, as
   well as support for using BTF within the kernel itself (current use
   is for pretty printing structures).

 - Support listing and getting information about bpf_links via the bpf
   syscall.

 - Enhance kernel interfaces around NIC firmware update. Allow
   specifying overwrite mask to control if settings etc. are reset
   during update; report expected max time operation may take to users;
   support firmware activation without machine reboot incl. limits of
   how much impact reset may have (e.g. dropping link or not).

 - Extend ethtool configuration interface to report IEEE-standard
   counters, to limit the need for per-vendor logic in user space.

 - Adopt or extend devlink use for debug, monitoring, fw update in many
   drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx,
   dpaa2-eth).

 - In mlxsw expose critical and emergency SFP module temperature alarms.
   Refactor port buffer handling to make the defaults more suitable and
   support setting these values explicitly via the DCBNL interface.

 - Add XDP support for Intel's igb driver.

 - Support offloading TC flower classification and filtering rules to
   mscc_ocelot switches.

 - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
   fixed interval period pulse generator and one-step timestamping in
   dpaa-eth.

 - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
   offload.

 - Add Lynx PHY/PCS MDIO module, and convert various drivers which have
   this HW to use it. Convert mvpp2 to split PCS.

 - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
   7-port Mediatek MT7531 IP.

 - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
   and wcn3680 support in wcn36xx.

 - Improve performance for packets which don't require much offloads on
   recent Mellanox NICs by 20% by making multiple packets share a
   descriptor entry.

 - Move chelsio inline crypto drivers (for TLS and IPsec) from the
   crypto subtree to drivers/net. Move MDIO drivers out of the phy
   directory.

 - Clean up a lot of W=1 warnings, reportedly the actively developed
   subsections of networking drivers should now build W=1 warning free.

 - Make sure drivers don't use in_interrupt() to dynamically adapt their
   code. Convert tasklets to use new tasklet_setup API (sadly this
   conversion is not yet complete).

* tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits)
  Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
  net, sockmap: Don't call bpf_prog_put() on NULL pointer
  bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo
  bpf, sockmap: Add locking annotations to iterator
  netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements
  net: fix pos incrementment in ipv6_route_seq_next
  net/smc: fix invalid return code in smcd_new_buf_create()
  net/smc: fix valid DMBE buffer sizes
  net/smc: fix use-after-free of delayed events
  bpfilter: Fix build error with CONFIG_BPFILTER_UMH
  cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr
  net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
  bpf: Fix register equivalence tracking.
  rxrpc: Fix loss of final ack on shutdown
  rxrpc: Fix bundle counting for exclusive connections
  netfilter: restore NF_INET_NUMHOOKS
  ibmveth: Identify ingress large send packets.
  ibmveth: Switch order of ibmveth_helper calls.
  cxgb4: handle 4-tuple PEDIT to NAT mode translation
  selftests: Add VRF route leaking tests
  ...
2020-10-15 18:42:13 -07:00
Linus Torvalds
fefa636d81 Updates for tracing and bootconfig:
- Add support for "bool" type in synthetic events
 
 - Add per instance tracing for bootconfig
 
 - Support perf-style return probe ("SYMBOL%return") in kprobes and uprobes
 
 - Allow for kprobes to be enabled earlier in boot up
 
 - Added tracepoint helper function to allow testing if tracepoints are
   enabled in headers
 
 - Synthetic events can now have dynamic strings (variable length)
 
 - Various fixes and cleanups
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Merge tag 'trace-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "Updates for tracing and bootconfig:

   - Add support for "bool" type in synthetic events

   - Add per instance tracing for bootconfig

   - Support perf-style return probe ("SYMBOL%return") in kprobes and
     uprobes

   - Allow for kprobes to be enabled earlier in boot up

   - Added tracepoint helper function to allow testing if tracepoints
     are enabled in headers

   - Synthetic events can now have dynamic strings (variable length)

   - Various fixes and cleanups"

* tag 'trace-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (58 commits)
  tracing: support "bool" type in synthetic trace events
  selftests/ftrace: Add test case for synthetic event syntax errors
  tracing: Handle synthetic event array field type checking correctly
  selftests/ftrace: Change synthetic event name for inter-event-combined test
  tracing: Add synthetic event error logging
  tracing: Check that the synthetic event and field names are legal
  tracing: Move is_good_name() from trace_probe.h to trace.h
  tracing: Don't show dynamic string internals in synthetic event description
  tracing: Fix some typos in comments
  tracing/boot: Add ftrace.instance.*.alloc_snapshot option
  tracing: Fix race in trace_open and buffer resize call
  tracing: Check return value of __create_val_fields() before using its result
  tracing: Fix synthetic print fmt check for use of __get_str()
  tracing: Remove a pointless assignment
  ftrace: ftrace_global_list is renamed to ftrace_ops_list
  ftrace: Format variable declarations of ftrace_allocate_records
  ftrace: Simplify the calculation of page number for ftrace_page->records
  ftrace: Simplify the dyn_ftrace->flags macro
  ftrace: Simplify the hash calculation
  ftrace: Use fls() to get the bits for dup_hash()
  ...
2020-10-15 15:51:28 -07:00
Linus Torvalds
0674324b16 linux-kselftest-next-5.10-rc1
This kselftest update for Linux 5.10-rc1 consists of enhancements to
 
 -- speed up headers_install done during selftest build
 -- add generic make nesting support
 -- add support to select individual tests:
    - Selftests build/install generates run_kselftest.sh script to run
      selftests on a target system. Currently the script doesn't have
      support for selecting individual tests. Add support for it.
 
      With this enhancement, user can select test collections (or tests)
      individually. e.g:
 
      run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep
 
      Additionally adds a way to list all known tests with "-l", usage
      with "-h", and perform a dry run without running tests with "-n".
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Merge tag 'linux-kselftest-next-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:

 - speed up headers_install done during selftest build

 - add generic make nesting support

 - add support to select individual tests:

   Selftests build/install generates run_kselftest.sh script to run
   selftests on a target system. Currently the script doesn't have
   support for selecting individual tests. Add support for it.

   With this enhancement, user can select test collections (or tests)
   individually. e.g:

      run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep

   Additionally adds a way to list all known tests with "-l", usage with
   "-h", and perform a dry run without running tests with "-n".

* tag 'linux-kselftest-next-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  doc: dev-tools: kselftest.rst: Update examples and paths
  selftests/run_kselftest.sh: Make each test individually selectable
  selftests: Extract run_kselftest.sh and generate stand-alone test list
  selftests: Add missing gitignore entries
  selftests: more general make nesting support
  selftests: use "$(MAKE)" instead of "make" for headers_install
2020-10-15 15:14:32 -07:00
Linus Torvalds
5a32c3413d dma-mapping updates for 5.10
- rework the non-coherent DMA allocator
  - move private definitions out of <linux/dma-mapping.h>
  - lower CMA_ALIGNMENT (Paul Cercueil)
  - remove the omap1 dma address translation in favor of the common
    code
  - make dma-direct aware of multiple dma offset ranges (Jim Quinlan)
  - support per-node DMA CMA areas (Barry Song)
  - increase the default seg boundary limit (Nicolin Chen)
  - misc fixes (Robin Murphy, Thomas Tai, Xu Wang)
  - various cleanups
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Merge tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - rework the non-coherent DMA allocator

 - move private definitions out of <linux/dma-mapping.h>

 - lower CMA_ALIGNMENT (Paul Cercueil)

 - remove the omap1 dma address translation in favor of the common code

 - make dma-direct aware of multiple dma offset ranges (Jim Quinlan)

 - support per-node DMA CMA areas (Barry Song)

 - increase the default seg boundary limit (Nicolin Chen)

 - misc fixes (Robin Murphy, Thomas Tai, Xu Wang)

 - various cleanups

* tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mapping: (63 commits)
  ARM/ixp4xx: add a missing include of dma-map-ops.h
  dma-direct: simplify the DMA_ATTR_NO_KERNEL_MAPPING handling
  dma-direct: factor out a dma_direct_alloc_from_pool helper
  dma-direct check for highmem pages in dma_direct_alloc_pages
  dma-mapping: merge <linux/dma-noncoherent.h> into <linux/dma-map-ops.h>
  dma-mapping: move large parts of <linux/dma-direct.h> to kernel/dma
  dma-mapping: move dma-debug.h to kernel/dma/
  dma-mapping: remove <asm/dma-contiguous.h>
  dma-mapping: merge <linux/dma-contiguous.h> into <linux/dma-map-ops.h>
  dma-contiguous: remove dma_contiguous_set_default
  dma-contiguous: remove dev_set_cma_area
  dma-contiguous: remove dma_declare_contiguous
  dma-mapping: split <linux/dma-mapping.h>
  cma: decrease CMA_ALIGNMENT lower limit to 2
  firewire-ohci: use dma_alloc_pages
  dma-iommu: implement ->alloc_noncoherent
  dma-mapping: add new {alloc,free}_noncoherent dma_map_ops methods
  dma-mapping: add a new dma_alloc_pages API
  dma-mapping: remove dma_cache_sync
  53c700: convert to dma_alloc_noncoherent
  ...
2020-10-15 14:43:29 -07:00
Linus Torvalds
f065199d4d dmaengine updates for v5.10-rc1
Core:
  - Mark dma_request_slave_channel() deprecated in favour of dma_request_chan()
  - subsystem conversion for tasklet_setup() API
  - subsystem removal of local dma_parms for arm drivers
 
 Updates to bunch of driver notably TI, DW and AXI-DMAC
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Merge tag 'dmaengine-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine updates from Vinod Koul:
 "Core:

   - Mark dma_request_slave_channel() deprecated in favour of
     dma_request_chan()

   - subsystem conversion for tasklet_setup() API

   - subsystem removal of local dma_parms for arm drivers

  Also updates to bunch of driver notably TI, DW and AXI-DMAC"

* tag 'dmaengine-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (104 commits)
  dmaengine: owl-dma: fix kernel-doc style for enum
  dmaengine: zynqmp_dma: fix kernel-doc style for tasklet
  dmaengine: xilinx_dma: fix kernel-doc style for tasklet
  dmaengine: qcom: bam_dma: fix kernel-doc style for tasklet
  dmaengine: altera-msgdma: fix kernel-doc style for tasklet
  dmaengine: xilinx: dpdma: convert tasklets to use new tasklet_setup() API
  dmaengine: sf-pdma: convert tasklets to use new tasklet_setup() API
  dt-bindings: Fix 'reg' size issues in zynqmp examples
  dmaengine: rcar-dmac: drop double zeroing
  dmaengine: sh: drop double zeroing
  dmaengine: ioat: Allocate correct size for descriptor chunk
  dmaengine: ti: k3-udma: use devm_platform_ioremap_resource_byname
  dmaengine: fsl: remove bad channel update
  dmaengine: dma-jz4780: Fix race in jz4780_dma_tx_status
  dmaengine: pl330: fix argument for tasklet
  dmaengine: dmatest: Return boolean result directly in filter()
  dmaengine: dmatest: Check list for emptiness before access its last entry
  dmaengine: ti: k3-udma-glue: fix channel enable functions
  dmaengine: iop-adma: Fix pointer cast warnings
  dmaengine: dw-edma: Fix Using plain integer as NULL pointer in dw-edma-v0-debugfs.c
  ...
2020-10-15 14:33:52 -07:00
Jakub Kicinski
2295cddf99 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Minor conflicts in net/mptcp/protocol.h and
tools/testing/selftests/net/Makefile.

In both cases code was added on both sides in the same place
so just keep both.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-15 12:43:21 -07:00
Linus Torvalds
c48b75b727 sound updates for 5.10
The amount of changes is smaller at this round (what a surprise),
 but lots of activity is seen.  Most of changes are about ASoC
 driver development, especially Intel platforms.
 Here are some highlights:
 
 General:
 * Replace all tasklet usages with other alternatives
 * Cleanup of the ASoC error unwinding code
 * Fixes for trivial issues caught by static checker
 * Spell fixes allover the places
 
 ALSA Core:
 * Lockdep fix for control devices
 * Fix for potential OSS sequencer mutex stalls
 
 HD-audio and USB-audio:
 * SoundBlaster AE-7 support
 * Changes in quirk table for the rename handling
 * Quirks for HP and ASUS machines, Pioneer DJ DJM-250MK2.
 
 ASoC:
 * Lots of updates for Intel SOF and SoundWire enablement
 * Replacement of the DSP driver for some older x86 systems;
   the new code was written from scratch, better maintenance
   expected
 * Helpers for parsing auxiluary devices from the device tree
 * New support for AllWinner A64, Cirrus Logic CS4234, Mediatek
   MT6359 Microchip S/PDIF TX and RX controllers, Realtek RT1015P,
   and Texas Instruments J721E, TAS2110, TAS2564 and TAS2764
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Merge tag 'sound-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "The amount of changes is smaller at this round (what a surprise), but
  lots of activity is seen. Most of changes are about ASoC driver
  development, especially Intel platforms. Here are some highlights:

  General:
   - Replace all tasklet usages with other alternatives
   - Cleanup of the ASoC error unwinding code
   - Fixes for trivial issues caught by static checker
   - Spell fixes allover the places

  ALSA Core:
   - Lockdep fix for control devices
   - Fix for potential OSS sequencer mutex stalls

  HD-audio and USB-audio:
   - SoundBlaster AE-7 support
   - Changes in quirk table for the rename handling
   - Quirks for HP and ASUS machines, Pioneer DJ DJM-250MK2.

  ASoC:
   - Lots of updates for Intel SOF and SoundWire enablement
   - Replacement of the DSP driver for some older x86 systems; the new
     code was written from scratch, better maintenance expected
   - Helpers for parsing auxiluary devices from the device tree
   - New support for AllWinner A64, Cirrus Logic CS4234, Mediatek MT6359
     Microchip S/PDIF TX and RX controllers, Realtek RT1015P, and Texas
     Instruments J721E, TAS2110, TAS2564 and TAS2764"

* tag 'sound-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (498 commits)
  ALSA: hda/hdmi: fix incorrect locking in hdmi_pcm_close
  ALSA: hda: fix jack detection with Realtek codecs when in D3
  ALSA: fireworks: use semicolons rather than commas to separate statements
  ALSA: hda: use semicolons rather than commas to separate statements
  ALSA: hda/i915 - fix list corruption with concurrent probes
  ASoC: dmaengine: Document support for TX only or RX only streams
  ASoC: mchp-spdiftx: remove 'TX' from playback stream name
  ASoC: ti: davinci-mcasp: Use &pdev->dev for early dev_warn
  ASoC: tas2764: Add the driver for the TAS2764
  dt-bindings: tas2764: Add the TAS2764 binding doc
  ASoC: Intel: catpt: Add explicit DMADEVICES kconfig dependency
  ASoC: Intel: catpt: Fix compilation when CONFIG_MODULES is disabled
  ASoC: stm32: dfsdm: add actual resolution trace
  ASoC: stm32: dfsdm: change rate limits
  ASoC: qcom: sc7180: Add support for audio over DP
  Asoc: qcom: lpass-platform : Increase buffer size
  ASoC: qcom: Add support for lpass hdmi driver
  Asoc: qcom: lpass:Update lpaif_dmactl members order
  Asoc:qcom:lpass-cpu:Update dts property read API
  ASoC: dt-bindings: Add dt binding for lpass hdmi
  ...
2020-10-15 11:07:44 -07:00
Linus Torvalds
93b694d096 drm next for 5.10-rc1
New driver:
 Cadence MHDP8546 DisplayPort bridge driver
 
 core:
 - cross-driver scatterlist cleanups
 - devm_drm conversions
 - remove drm_dev_init
 - devm_drm_dev_alloc conversion
 
 ttm:
 - lots of refactoring and cleanups
 
 bridges:
 - chained bridge support in more drivers
 
 panel:
 - misc new panels
 
 scheduler:
 - cleanup priority levels
 
 displayport:
 - refactor i915 code into helpers for nouveau
 
 i915:
 - split into display and GT trees
 - WW locking refactoring in GEM
 - execbuf2 extension mechanism
 - syncobj timeline support
 - GEN 12 HOBL display powersaving
 - Rocket Lake display additions
 - Disable FBC on Tigerlake
 - Tigerlake Type-C + DP improvements
 - Hotplug interrupt refactoring
 
 amdgpu:
 - Sienna Cichlid updates
 - Navy Flounder updates
 - DCE6 (SI) support for DC
 - Plane rotation enabled
 - TMZ state info ioctl
 - PCIe DPC recovery support
 - DC interrupt handling refactor
 - OLED panel fixes
 
 amdkfd:
 - add SMI events for thermal throttling
 - SMI interface events ioctl update
 - process eviction counters
 
 radeon:
 - move to dma_ for allocations
 - expose sclk via sysfs
 
 msm:
 - DSI support for sm8150/sm8250
 - per-process GPU pagetable support
 - Displayport support
 
 mediatek:
 - move HDMI phy driver to PHY
 - convert mtk-dpi to bridge API
 - disable mt2701 tmds
 
 tegra:
 - bridge support
 
 exynos:
 - misc cleanups
 
 vc4:
 - dual display cleanups
 
 ast:
 - cleanups
 
 gma500:
 - conversion to GPIOd API
 
 hisilicon:
 - misc reworks
 
 ingenic:
 - clock handling and format improvements
 
 mcde:
 - DSI support
 
 mgag200:
 - desktop g200 support
 
 mxsfb:
 - i.MX7 + i.MX8M
 - alpha plane support
 
 panfrost:
 - devfreq support
 - amlogic SoC support
 
 ps8640:
 - EDID from eDP retrieval
 
 tidss:
 - AM65xx YUV workaround
 
 virtio:
 - virtio-gpu exported resources
 
 rcar-du:
 - R8A7742, R8A774E1 and R8A77961 support
 - YUV planar format fixes
 - non-visible plane handling
 - VSP device reference count fix
 - Kconfig fix to avoid displaying disabled options in .config
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Merge tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Not a major amount of change, the i915 trees got split into display
  and gt trees to better facilitate higher level review, and there's a
  major refactoring of i915 GEM locking to use more core kernel concepts
  (like ww-mutexes). msm gets per-process pagetables, older AMD SI cards
  get DC support, nouveau got a bump in displayport support with common
  code extraction from i915.

  Outside of drm this contains a couple of patches for hexint
  moduleparams which you've acked, and a virtio common code tree that
  you should also get via it's regular path.

  New driver:
   - Cadence MHDP8546 DisplayPort bridge driver

  core:
   - cross-driver scatterlist cleanups
   - devm_drm conversions
   - remove drm_dev_init
   - devm_drm_dev_alloc conversion

  ttm:
   - lots of refactoring and cleanups

  bridges:
   - chained bridge support in more drivers

  panel:
   - misc new panels

  scheduler:
   - cleanup priority levels

  displayport:
   - refactor i915 code into helpers for nouveau

  i915:
   - split into display and GT trees
   - WW locking refactoring in GEM
   - execbuf2 extension mechanism
   - syncobj timeline support
   - GEN 12 HOBL display powersaving
   - Rocket Lake display additions
   - Disable FBC on Tigerlake
   - Tigerlake Type-C + DP improvements
   - Hotplug interrupt refactoring

  amdgpu:
   - Sienna Cichlid updates
   - Navy Flounder updates
   - DCE6 (SI) support for DC
   - Plane rotation enabled
   - TMZ state info ioctl
   - PCIe DPC recovery support
   - DC interrupt handling refactor
   - OLED panel fixes

  amdkfd:
   - add SMI events for thermal throttling
   - SMI interface events ioctl update
   - process eviction counters

  radeon:
   - move to dma_ for allocations
   - expose sclk via sysfs

  msm:
   - DSI support for sm8150/sm8250
   - per-process GPU pagetable support
   - Displayport support

  mediatek:
   - move HDMI phy driver to PHY
   - convert mtk-dpi to bridge API
   - disable mt2701 tmds

  tegra:
   - bridge support

  exynos:
   - misc cleanups

  vc4:
   - dual display cleanups

  ast:
   - cleanups

  gma500:
   - conversion to GPIOd API

  hisilicon:
   - misc reworks

  ingenic:
   - clock handling and format improvements

  mcde:
   - DSI support

  mgag200:
   - desktop g200 support

  mxsfb:
   - i.MX7 + i.MX8M
   - alpha plane support

  panfrost:
   - devfreq support
   - amlogic SoC support

  ps8640:
   - EDID from eDP retrieval

  tidss:
   - AM65xx YUV workaround

  virtio:
   - virtio-gpu exported resources

  rcar-du:
   - R8A7742, R8A774E1 and R8A77961 support
   - YUV planar format fixes
   - non-visible plane handling
   - VSP device reference count fix
   - Kconfig fix to avoid displaying disabled options in .config"

* tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm: (1494 commits)
  drm/ingenic: Fix bad revert
  drm/amdgpu: Fix invalid number of character '{' in amdgpu_acpi_init
  drm/amdgpu: Remove warning for virtual_display
  drm/amdgpu: kfd_initialized can be static
  drm/amd/pm: setup APU dpm clock table in SMU HW initialization
  drm/amdgpu: prevent spurious warning
  drm/amdgpu/swsmu: fix ARC build errors
  drm/amd/display: Fix OPTC_DATA_FORMAT programming
  drm/amd/display: Don't allow pstate if no support in blank
  drm/panfrost: increase readl_relaxed_poll_timeout values
  MAINTAINERS: Update entry for st7703 driver after the rename
  Revert "gpu/drm: ingenic: Add option to mmap GEM buffers cached"
  drm/amd/display: HDMI remote sink need mode validation for Linux
  drm/amd/display: Change to correct unit on audio rate
  drm/amd/display: Avoid set zero in the requested clk
  drm/amdgpu: align frag_end to covered address space
  drm/amdgpu: fix NULL pointer dereference for Renoir
  drm/vmwgfx: fix regression in thp code due to ttm init refactor.
  drm/amdgpu/swsmu: add interrupt work handler for smu11 parts
  drm/amdgpu/swsmu: add interrupt work function
  ...
2020-10-15 10:46:16 -07:00
Linus Torvalds
726eb70e0d Char/Misc driver patches for 5.10-rc1
Here is the big set of char, misc, and other assorted driver subsystem
 patches for 5.10-rc1.
 
 There's a lot of different things in here, all over the drivers/
 directory.  Some summaries:
 	- soundwire driver updates
 	- habanalabs driver updates
 	- extcon driver updates
 	- nitro_enclaves new driver
 	- fsl-mc driver and core updates
 	- mhi core and bus updates
 	- nvmem driver updates
 	- eeprom driver updates
 	- binder driver updates and fixes
 	- vbox minor bugfixes
 	- fsi driver updates
 	- w1 driver updates
 	- coresight driver updates
 	- interconnect driver updates
 	- misc driver updates
 	- other minor driver updates
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big set of char, misc, and other assorted driver subsystem
  patches for 5.10-rc1.

  There's a lot of different things in here, all over the drivers/
  directory. Some summaries:

   - soundwire driver updates

   - habanalabs driver updates

   - extcon driver updates

   - nitro_enclaves new driver

   - fsl-mc driver and core updates

   - mhi core and bus updates

   - nvmem driver updates

   - eeprom driver updates

   - binder driver updates and fixes

   - vbox minor bugfixes

   - fsi driver updates

   - w1 driver updates

   - coresight driver updates

   - interconnect driver updates

   - misc driver updates

   - other minor driver updates

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

* tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (396 commits)
  binder: fix UAF when releasing todo list
  docs: w1: w1_therm: Fix broken xref, mistakes, clarify text
  misc: Kconfig: fix a HISI_HIKEY_USB dependency
  LSM: Fix type of id parameter in kernel_post_load_data prototype
  misc: Kconfig: add a new dependency for HISI_HIKEY_USB
  firmware_loader: fix a kernel-doc markup
  w1: w1_therm: make w1_poll_completion static
  binder: simplify the return expression of binder_mmap
  test_firmware: Test partial read support
  firmware: Add request_partial_firmware_into_buf()
  firmware: Store opt_flags in fw_priv
  fs/kernel_file_read: Add "offset" arg for partial reads
  IMA: Add support for file reads without contents
  LSM: Add "contents" flag to kernel_read_file hook
  module: Call security_kernel_post_load_data()
  firmware_loader: Use security_post_load_data()
  LSM: Introduce kernel_post_load_data() hook
  fs/kernel_read_file: Add file_size output argument
  fs/kernel_read_file: Switch buffer size arg to size_t
  fs/kernel_read_file: Remove redundant size argument
  ...
2020-10-15 10:01:51 -07:00
Linus Torvalds
c6dbef7307 USB/PHY/Thunderbolt driver patches for 5.10-rc1
Here is the big set of USB, PHY, and Thunderbolt driver updates for
 5.10-rc1.
 
 Lots of tiny different things for these subsystems are in here,
 including:
 	- phy driver updates
 	- thunderbolt / USB 4 updates and additions
 	- USB gadget driver updates
 	- xhci fixes and updates
 	- typec driver additions and updates
 	- api conversions to various drivers for core kernel api changes
 	- new USB control message functions to make it harder to get
 	  wrong, as found by syzbot (took 2 tries to get it right)
 	- lots of tiny USB driver fixes and updates all over the place
 
 All of these have been in linux-next for a while, with the exception of
 the last "obviously correct" patch that updated a FALLTHROUGH comment
 that got merged last weekend.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY/Thunderbolt driver updates from Greg KH:
 "Here is the big set of USB, PHY, and Thunderbolt driver updates for
  5.10-rc1.

  Lots of tiny different things for these subsystems are in here,
  including:

   - phy driver updates

   - thunderbolt / USB 4 updates and additions

   - USB gadget driver updates

   - xhci fixes and updates

   - typec driver additions and updates

   - api conversions to various drivers for core kernel api changes

   - new USB control message functions to make it harder to get wrong,
     as found by syzbot (took 2 tries to get it right)

   - lots of tiny USB driver fixes and updates all over the place

  All of these have been in linux-next for a while, with the exception
  of the last "obviously correct" patch that updated a FALLTHROUGH
  comment that got merged last weekend"

* tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (374 commits)
  usb: musb: gadget: Use fallthrough pseudo-keyword
  usb: typec: Add QCOM PMIC typec detection driver
  USB: serial: option: add Cellient MPL200 card
  usb: typec: tcpci_maxim: Add support for Sink FRS
  usb: typec: tcpci: Implement callbacks for FRS
  usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS)
  usb: typec: tcpci_maxim: Chip level TCPC driver
  usb: typec: tcpci: Add set_vbus tcpci callback
  usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference
  usbip: vhci_hcd: fix calling usb_hcd_giveback_urb() with irqs enabled
  usb: cdc-acm: add quirk to blacklist ETAS ES58X devices
  USB: serial: ftdi_sio: use cur_altsetting for consistency
  USB: serial: option: Add Telit FT980-KS composition
  USB: core: remove polling for /sys/kernel/debug/usb/devices
  usb: typec: add support for STUSB160x Type-C controller family
  usb: typec: add typec_find_pwr_opmode
  usb: typec: hd3ss3220: Use OF graph API to get the connector fwnode
  dt-bindings: usb: renesas,usb3-peri: Document HS and SS data bus
  dt-bindings: usb: convert ti,hd3ss3220 bindings to json-schema
  usb: dwc2: Fix INTR OUT transfers in DDMA mode.
  ...
2020-10-15 09:51:18 -07:00
Linus Torvalds
ade7afe3e6 Staging / IIO driver updates for 5.10-rc1
Here is the large set of staging and IIO driver updates for 5.10-rc1.
 
 Included in here are:
 	- new IIO drivers
 	- new IIO driver frameworks
 	- various IIO driver fixes and updates
 	- IIO device tree conversions to yaml
 	- so many minor staging driver coding style cleanups
 	- most cdev driver moved out of staging
 	- no new drivers added or removed
 
 Full details are in the shortlog.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / IIO driver updates from Greg KH:
 "Here is the large set of staging and IIO driver updates for 5.10-rc1.

  Included in here are:

   - new IIO drivers

   - new IIO driver frameworks

   - various IIO driver fixes and updates

   - IIO device tree conversions to yaml

   - so many minor staging driver coding style cleanups

   - most cdev driver moved out of staging

   - no staging drivers added or removed

  Full details are in the shortlog.

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

* tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (476 commits)
  staging: comedi: check validity of wMaxPacketSize of usb endpoints found
  staging: wfx: improve robustness of wfx_get_hw_rate()
  staging: wfx: drop unicode characters from strings
  staging: wfx: gpiod_get_value() can return an error
  staging: wfx: increase robustness of hif_generic_confirm()
  staging: wfx: wfx_init_common() returns NULL on error
  staging: wfx: standardize the error when vif does not exist
  staging: wfx: check memory allocation
  staging: wfx: improve error handling of hif_join()
  staging: dpaa2-switch: add a dpaa2_switch prefix to all functions in ethsw.c
  staging: dpaa2-switch: add a dpaa2_switch_ prefix to all functions in ethsw-ethtool.c
  staging: rtl8188eu: Fix long lines
  dt-bindings: staging: wfx: silabs,wfx yaml conversion
  staging: wfx: update copyrights dates
  staging: wfx: fix QoS priority for slow buses
  staging: wfx: fix BA sessions for older firmwares
  staging: wfx: remove remaining code of 'secure link' feature
  staging: wfx: fix handling of MMIC error
  staging: vchiq: Fix list_for_each exit tests
  staging: greybus: use __force when assigning __u8 value to snd_ctl_elem_type_t
  ...
2020-10-15 09:46:23 -07:00
Mauro Carvalho Chehab
1b7743912b usb: docs: document altmode register/unregister functions
The typec_bus.rst asks for documentation of those two
functions, but they don't exist:

	./drivers/usb/typec/bus.c:1: warning: 'typec_altmode_unregister_driver' not found
	./drivers/usb/typec/bus.c:1: warning: 'typec_altmode_register_driver' not found

Also, they're not declared on bus.c but, instead, at a header
file (typec_altmode.h).

So, add documentation for both functions at the header and
change the kernel-doc markup under typec_bus.rst to point
to the right place.

While here, also place the documentation for both structs
declared on typec_altmode.h at the rst file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:48 +02:00
Mauro Carvalho Chehab
209b44c804 docs: powerpc: syscall64-abi.rst: fix a malformed table
As reported:

	Documentation/powerpc/syscall64-abi.rst:53: WARNING: Malformed table.
	Text in column margin in table line 2.

	=========== ============= ========================================
	--- For the sc instruction, differences with the ELF ABI ---
	r0          Volatile      (System call number.)

This table requires a different notation to be valid.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:47 +02:00
Mauro Carvalho Chehab
480017f00c dt-bindings: fix references to files converted to yaml
There were several files converted to yaml, but the .txt file
is still referenced somewhere else.

Update the references for them to point to the right file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:47 +02:00
Mauro Carvalho Chehab
5e44635cc9 media: uAPI: buffer.rst: remove a left-over documentation
Changeset 129134e541 ("media: media/v4l2: remove V4L2_FLAG_MEMORY_NON_CONSISTENT flag")
reverted an uAPI flag, but it kept some left-overs at the documentation.

Drop them too. This should solve this warning:

	Documentation/userspace-api/media/v4l/buffer.rst:692: WARNING: The "flat-table" directive is empty; content required.

	.. flat-table::
	    :header-rows:  0
	    :stub-columns: 0
	    :widths:       3 1 4

Fixes: 129134e541 ("media: media/v4l2: remove V4L2_FLAG_MEMORY_NON_CONSISTENT flag")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:46 +02:00
Mauro Carvalho Chehab
ed159f9724 docs: zh_CN: amu.rst: fix document title markup
As warned by Sphinx 2.4.4:
	.../Documentation/translations/zh_CN/arm64/amu.rst:7: WARNING: Title overline too short.

Increase its size.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:46 +02:00
Mauro Carvalho Chehab
f41f716dc3 docs: infrastructure.rst: exclude device_link_state from device.h
This is already documented at device_link.rst, causing this
warning, due to a broken cross-reference:

	.../Documentation/driver-api/device_link.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/infrastructure'.
	Declaration is 'device_link_state'.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:46 +02:00
Mauro Carvalho Chehab
14059a38a4 docs: conf.py: change the Sphinx 3.x+ text
After the build fix patches, it is believed that the output
with Sphinx 3.x won't be a problem. Still, the C domain
support was re-written, and this can have caused hidden
issues.

So, let's keep the warning, changing it to a lighter
warning text.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:45 +02:00
Mauro Carvalho Chehab
b34b86d7a4 docs: conf.py: fix c:function support with Sphinx 3.x
Sphinx C parser for the C domain is now more pedantic when
trying to identify the function types. That prevents scope
macros to be used as type defines.

Yet, since 3.0.2, it is possible to provide it a list of
such macros. Add them, in order to solve several Sphinx 3.x
warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:45 +02:00
Mauro Carvalho Chehab
a57c3522e8 docs: basics.rst: avoid duplicated C function declaration
pci_device_id is already documented at pci.rst:

	./Documentation/driver-api/basics.rst: WARNING: Duplicate C declaration, also defined in 'PCI/pci'.
	Declaration is 'pci_device_id'.

The kstrtol and kstrtoul are already at kernel-api:

	./Documentation/driver-api/basics.rst: WARNING: Duplicate C declaration, also defined in 'core-api/kernel-api'.
	Declaration is 'kstrtoul'.
	./Documentation/driver-api/basics.rst: WARNING: Duplicate C declaration, also defined in 'core-api/kernel-api'.
	Declaration is 'kstrtol'.

And the printk is already defined at printk-basics:

	./Documentation/driver-api/basics.rst: WARNING: Duplicate C declaration, also defined in 'core-api/printk-basics'.
	Declaration is 'printk'.

So, exclude those identifiers from basirs.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:45 +02:00
Mauro Carvalho Chehab
ccf1227313 docs: mei.rst: fix a C expression markup
Sphinx 3.x doesn't allow expressions using :c:func markup:

	./Documentation/driver-api/mei/mei.rst:41: WARNING: Unparseable C cross-reference: 'close(int fd)'
	Invalid C declaration: Expected end of definition. [error at 5]
	  close(int fd)
	  -----^

So, convert it into a :c:expr.

Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:45 +02:00
Mauro Carvalho Chehab
366a076518 docs: it_IT: hacking.rst: fix a typo on a markup
There's a missing "`", causing this warning:
	./Documentation/translations/it_IT/kernel-hacking/hacking.rst:404: WARNING: Unparseable C cross-reference: 'cpu_to_be32p(), che prende un puntatore\nad un tipo, e ritorna il valore convertito. L\'altra variante per\nla famiglia di conversioni "in-situ", come :c:func:`cpu_to_be32s'
	Invalid C declaration: Expected end of definition. [error at 14]
	  cpu_to_be32p(), che prende un puntatore
	ad un tipo, e ritorna il valore convertito. L'altra variante per
	la famiglia di conversioni "in-situ", come :c:func:`cpu_to_be32s
	  --------------^

Acked-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:45 +02:00
Mauro Carvalho Chehab
2f27ed7568 docs: devices.rst: fix a C reference markup
The C domain parser of Sphinx3 expects just function names
for :c:func: markups:

	./Documentation/driver-api/pm/devices.rst:413: WARNING: Unparseable C cross-reference: 'device_may_wakeup(dev)'
	Invalid C declaration: Expected end of definition. [error at 17]
	  device_may_wakeup(dev)
	  -----------------^

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:44 +02:00
Mauro Carvalho Chehab
11604da248 docs: gpu: i915.rst: Fix several C duplication warnings
As reported by Sphinx:

	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:1147: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_oa_wait_unlocked'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:1169: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_oa_poll_wait'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:1189: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_oa_read'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:2669: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_oa_stream_enable'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:2734: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_oa_stream_disable'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:2820: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_oa_stream_init'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3010: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_read'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3098: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_poll_locked'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3129: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_poll'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3152: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_enable_locked'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3181: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_disable_locked'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3273: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_ioctl'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3296: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_destroy_locked'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3321: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_release'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3379: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_open_ioctl_locked'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3534: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'read_properties_unlocked'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3717: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_open_ioctl'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3760: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_register'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:3789: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_unregister'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:4009: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_add_config_ioctl'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:4162: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_remove_config_ioctl'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:4260: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_init'.
	./Documentation/gpu/i915:646: ./drivers/gpu/drm/i915/i915_perf.c:4423: WARNING: Duplicate C declaration, also defined in 'gpu/i915'.
	Declaration is 'i915_perf_fini'.

With Sphinx 3, C declarations can't be duplicated anymore,
so let's exclude those from the other internals found on
i915_perf.c file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:44 +02:00
Mauro Carvalho Chehab
afe178adb9 docs: infrastructure.rst: don't include firmware kernel-doc
Those are already documented at:

	Documentation/driver-api/firmware/request_firmware.rst

Including it twice is causing lots of warnings:

	./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
	Declaration is 'request_firmware'.
	./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
	Declaration is 'firmware_request_nowarn'.
	./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
	Declaration is 'request_firmware_direct'.
	./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
	Declaration is 'firmware_request_platform'.
	./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
	Declaration is 'firmware_request_cache'.
	./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
	Declaration is 'request_firmware_into_buf'.
	./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
	Declaration is 'request_firmware_nowait'.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:44 +02:00
Mauro Carvalho Chehab
b989451b8e docs: libata.rst: fix a wrong usage of :c:type: tag
The usage of :c:type: to reference to a struct member is wrong,
as pointed by Sphinx 3:

	./Documentation/driver-api/libata.rst:511: WARNING: Unparseable C cross-reference: 'qc->complete_fn'
	Invalid C declaration: Expected end of definition. [error at 2]
	  qc->complete_fn
	  --^

Instead, let's use :c:expr: for such purpose.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:44 +02:00
Mauro Carvalho Chehab
365ff56f08 docs: kgdb.rst: fix :c:type: usages
Which Sphinx 3, :c:type:  can't be used anymore for structs,
as this should be used only for typedefs.

Rely on automarkup.py for struct references.

This file has an special case, though: it uses the tag also
to point to an array. Let's use, instead, :c:expr: for such
purpose, as it should do the right thing.

This should fix this warning:

	./Documentation/dev-tools/kgdb.rst:875: WARNING: Unparseable C cross-reference: 'kdb_poll_funcs[]'
	Invalid C declaration: Expected end of definition. [error at 14]
	  kdb_poll_funcs[]
	  --------------^

Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:44 +02:00
Mauro Carvalho Chehab
64d4151658 docs: fpga: replace :c:member: macros
Those macros are not doing the right thing with Sphinx 3,
causing parse errors:

	./Documentation/driver-api/fpga/fpga-mgr.rst:104: WARNING: Unparseable C cross-reference: 'fpga_manager->state'
	Invalid C declaration: Expected end of definition. [error at 12]
	  fpga_manager->state
	  ------------^
	./Documentation/driver-api/fpga/fpga-programming.rst:18: WARNING: Unparseable C cross-reference: 'fpga_region->info'
	Invalid C declaration: Expected end of definition. [error at 11]
	  fpga_region->info
	  -----------^
	./Documentation/driver-api/fpga/fpga-region.rst:62: WARNING: Unparseable C cross-reference: 'fpga_region->bridge_list'
	Invalid C declaration: Expected end of definition. [error at 11]
	  fpga_region->bridge_list
	  -----------^
	./Documentation/driver-api/fpga/fpga-region.rst:62: WARNING: Unparseable C cross-reference: 'fpga_region->get_bridges'
	Invalid C declaration: Expected end of definition. [error at 11]
	  fpga_region->get_bridges
	  -----------^

Replace them by :c:expr:, with does what's desired.

Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:43 +02:00
Mauro Carvalho Chehab
4d9d18ad66 docs: writing-an-alsa-driver.rst: fix some bad c:func: markups
Some such markups are invalid, as reported by Sphinx:

	./Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3317: WARNING: Unparseable C cross-reference: 'snd_rawmidi_transmit*'
	Invalid C declaration: Expected end of definition. [error at 20]
	  snd_rawmidi_transmit*
	  --------------------^
	./Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3917: WARNING: Unparseable C cross-reference: 'copy_from/to_user'
	Invalid C declaration: Expected end of definition. [error at 9]
	  copy_from/to_user
	  ---------^

The first case seems to be better replaced by a literal.

For the second one, let's generate cross-references, by
spliting it in two.

Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:43 +02:00
Mauro Carvalho Chehab
8ac867340b docs: block: blk-mq.rst: get rid of :c:type
The :c:type macros are not used properly there, as reported
by Sphinx 3:

	./Documentation/block/blk-mq.rst:112: WARNING: Unparseable C cross-reference: 'hctx->dispatch'
	Invalid C declaration: Expected end of definition. [error at 4]
	  hctx->dispatch
	  ----^

Also, they won't be generating any cross references.

So, replace them by a literal markup.

Reviewed-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:43 +02:00
Mauro Carvalho Chehab
6873590275 docs: sound: writing-an-alsa-driver.rst: get rid of :c:type
the :c:type shouldn't be used with structs with Sphinx 3,
as the C domain there uses .. c:struct for structs.

As we have the automarkup extension, let's just get rid of
all :c:type as a whole, as those will be automagically
marked as such.

This solves a bunch of warnings with Sphinx 3, like those:

	.../Documentation/sound/kernel-api/writing-an-alsa-driver.rst:490: WARNING: Unparseable C cross-reference: 'calling snd_card_free'
	Invalid C declaration: Expected end of definition. [error at 8]
	  calling snd_card_free
	  --------^
	.../Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3328: WARNING: Unparseable C cross-reference: 'snd_rawmidi_transmit*'
	Invalid C declaration: Expected end of definition. [error at 20]
	  snd_rawmidi_transmit*
	  --------------------^
	.../Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3928: WARNING: Unparseable C cross-reference: 'copy_from/to_user'
	Invalid C declaration: Expected end of definition. [error at 9]
	  copy_from/to_user
	  ---------^

Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:43 +02:00
Mauro Carvalho Chehab
6624d64da6 docs: devices.rst: get rid of :c:type macros
There's no need to use macros to use :c:type on this file,
as automarkup.py should do this automatically.

Also, this breaks compatibility with Sphinx 3.x, as there,
structs should be declared using .. c:struct.

So, get rid of them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:43 +02:00
Mauro Carvalho Chehab
74e2f8d300 docs: fs: fscrypt.rst: get rid of :c:type: tags
The :c:type: tag has problems with Sphinx 3.x, as structs
there should be declared with c:struct.

So, remove them, relying at automarkup.py extension to
convert them into cross-references.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:42 +02:00
Mauro Carvalho Chehab
b30fd8e962 docs: pstore-blk.rst: fix kernel-doc tags
There is currently a problem with kernel-doc tags from blk.c:

	.../Documentation/admin-guide/pstore-blk:239: ./fs/pstore/blk.c:175: WARNING: Duplicate C declaration, also defined in 'admin-guide/pstore-blk'.
	Declaration is 'register_pstore_device'.
	.../Documentation/admin-guide/pstore-blk:239: ./fs/pstore/blk.c:432: WARNING: Duplicate C declaration, also defined in 'admin-guide/pstore-blk'.
	Declaration is 'register_pstore_blk'.
	.../Documentation/admin-guide/pstore-blk:242: ./include/linux/pstore_blk.h:43: WARNING: Duplicate C declaration, also defined in 'admin-guide/pstore-blk'.
	Declaration is 'pstore_device_info'.

Basically, the internal parts is shown with :export:, instead
of :internal:. Yet, there are some other exported docs that
aren't at the document, because they lack :identifiers:.

So, instead, let's just use :export: at the kAPI part of
the documentation.

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:42 +02:00
Mauro Carvalho Chehab
044248db5d docs: basics.rst: get rid of rcu kernel-doc macros
Those are already defined at kernel-api.rst, as part of the
synchronization primitives chapter.

This solves several Sphinx 3 warnings, like:

	.../Documentation/driver-api/basics.rst: WARNING: Duplicate C declaration, also defined in 'core-api/kernel-api'.
	Declaration is 'rcu_idle_enter'.
	.../Documentation/driver-api/basics.rst: WARNING: Duplicate C declaration, also defined in 'core-api/kernel-api'.
	Declaration is 'rcu_idle_exit'.
	.../Documentation/driver-api/basics.rst: WARNING: Duplicate C declaration, also defined in 'core-api/kernel-api'.
	Declaration is 'rcu_is_watching'.
	.../Documentation/driver-api/basics.rst: WARNING: Duplicate C declaration, also defined in 'core-api/kernel-api'.
	Declaration is 'call_rcu'.
	.../Documentation/driver-api/basics.rst: WARNING: Duplicate C declaration, also defined in 'core-api/kernel-api'.
	Declaration is 'synchronize_rcu'.
	...

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:42 +02:00
Mauro Carvalho Chehab
58bc57b0de docs: device_link.rst: remove duplicated kernel-doc include
The infrastructure.rst file already includes the external
symbols from drivers/base/core.c.

Duplicating 3 functions there causes namespace collisions:

	Documentation/driver-api/device_link.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/infrastructure'.
	Declaration is 'device_link_state'.
	Documentation/driver-api/device_link.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/infrastructure'.
	Declaration is 'device_link_add'.
	Documentation/driver-api/device_link.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/infrastructure'.
	Declaration is 'device_link_del'.
	Documentation/driver-api/device_link.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/infrastructure'.
	Declaration is 'device_link_remove'.

So, drop the reference, adding just a mention to the functions
associated with device_link.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:42 +02:00
Mauro Carvalho Chehab
3048ba6007 docs: scsi: target.rst: remove iSCSI transport class kernel-doc markup
This is already included at scsi.rst. So, remove the duplication,
in order to avoid Sphinx warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:42 +02:00
Mauro Carvalho Chehab
c9e3d519ee docs: basics.rst: move kernel-doc workqueue markups to workqueue.rst
As there's already a rst file with workqueue markups, containing
part of them, move the other definitions, in order to avoid
warnings with Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:41 +02:00
Mauro Carvalho Chehab
1842c96bee docs: remove sound API duplication
The sound API is documented on two different parts:
under Documentation/driver-api/sound.rst and under
Documentation/sound/kernel-api/alsa-driver-api.rst.

The alsa-driver-api.rst seems more complete, and APIs
are split per type. There's just one missing kernel-doc
markup there.

Add it and drop the duplicated one.

Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:41 +02:00
Mauro Carvalho Chehab
f182e7fd5c docs: kernel-api.rst: drop kernel/irq/manage.c kernel-doc tag
This is already included at genericirq.rst. Adding it twice
causes C namespace duplication:

	.../Documentation/core-api/kernel-api:237: ../kernel/irq/manage.c💯 WARNING: Duplicate C declaration, also defined in 'genericirq'.
	Declaration is 'synchronize_hardirq'.
	.../Documentation/core-api/kernel-api:237: ../kernel/irq/manage.c:128: WARNING: Duplicate C declaration, also defined in 'genericirq'.
	Declaration is 'synchronize_irq'.
	.../Documentation/core-api/kernel-api:237: ../kernel/irq/manage.c:443: WARNING: Duplicate C declaration, also defined in 'genericirq'.
	Declaration is 'irq_set_affinity_notifier'.
	...

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:41 +02:00
Mauro Carvalho Chehab
9b9b0bda7d docs: genericirq.rst: don't document chip.c functions twice
Currently, kernel/irq/chip.c is included twice, one for
export functions, and then for internal ones. However, as
the :export:  and :internal: tags are missing, they ended
being included twice.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:41 +02:00
Mauro Carvalho Chehab
640e3f80a6 docs: net: ieee802154.rst: fix C expressions
There are some warnings produced with Sphinx 3.x:

	Documentation/networking/ieee802154.rst:29: WARNING: Error in declarator or parameters
	Invalid C declaration: Expecting "(" in parameters. [error at 7]
	  int sd = socket(PF_IEEE802154, SOCK_DGRAM, 0);
	  -------^
	Documentation/networking/ieee802154.rst:134: WARNING: Invalid C declaration: Expected end of definition. [error at 81]
	  void ieee802154_rx_irqsafe(struct ieee802154_hw *hw, struct sk_buff *skb, u8 lqi):
	  ---------------------------------------------------------------------------------^
	Documentation/networking/ieee802154.rst:139: WARNING: Invalid C declaration: Expected end of definition. [error at 95]
	  void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb, bool ifs_handling):
	  -----------------------------------------------------------------------------------------------^
	Documentation/networking/ieee802154.rst:158: WARNING: Invalid C declaration: Expected end of definition. [error at 35]
	  int start(struct ieee802154_hw *hw):
	  -----------------------------------^
	Documentation/networking/ieee802154.rst:162: WARNING: Invalid C declaration: Expected end of definition. [error at 35]
	  void stop(struct ieee802154_hw *hw):
	  -----------------------------------^
	Documentation/networking/ieee802154.rst:166: WARNING: Invalid C declaration: Expected end of definition. [error at 61]
	  int xmit_async(struct ieee802154_hw *hw, struct sk_buff *skb):
	  -------------------------------------------------------------^
	Documentation/networking/ieee802154.rst:171: WARNING: Invalid C declaration: Expected end of definition. [error at 43]
	  int ed(struct ieee802154_hw *hw, u8 *level):
	  -------------------------------------------^
	Documentation/networking/ieee802154.rst:176: WARNING: Invalid C declaration: Expected end of definition. [error at 62]
	  int set_channel(struct ieee802154_hw *hw, u8 page, u8 channel):
	  --------------------------------------------------------------^

Caused by some bad c:function: prototypes. Fix them.

Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:41 +02:00
Mauro Carvalho Chehab
71a8156e94 docs: it_IT: fix namespace collisions at locking.rst
The C domain functions there collide with the English ones,
due to namespace collision, generating lots of warnings with
Sphinx 3.x:

	./include/linux/mutex.h:121: WARNING: Duplicate C declaration, also defined in 'translations/it_IT/kernel-hacking/locking'.
	Declaration is 'mutex_init'.
	./include/linux/mutex.h:152: WARNING: Duplicate C declaration, also defined in 'translations/it_IT/kernel-hacking/locking'.
	Declaration is 'mutex_is_locked'.
	./include/linux/mutex.h:226: WARNING: Duplicate C declaration, also defined in 'translations/it_IT/kernel-hacking/locking'.
	Declaration is 'mutex_trylock_recursive'.
	./kernel/locking/mutex.c:281: WARNING: Duplicate C declaration, also defined in 'translations/it_IT/kernel-hacking/locking'.
	Declaration is 'mutex_lock'.
	...

Add a namespace tag there, in order to prevent that.

Acked-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:40 +02:00
Mauro Carvalho Chehab
d7faad159a docs: trace-uses.rst: remove bogus c-domain tags
There are some c-domain tags that are wrong. While this won't
cause problems with Sphinx < 3.0, this cause troubles with
newer versions, as the C parser won't recognize the contents
of the tag, and will drop it from the output.

Let's just place them at literal blocks.

Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:40 +02:00
Mauro Carvalho Chehab
9303c9d5e9 docs: get rid of :c:type explicit declarations for structs
The :c:type:`foo` only works properly with structs before
Sphinx 3.x.

On Sphinx 3.x, structs should now be declared using the
.. c:struct, and referenced via :c:struct tag.

As we now have the automarkup.py macro, that automatically
convert:
	struct foo

into cross-references, let's get rid of that, solving
several warnings when building docs with Sphinx 3.x.

Reviewed-by: André Almeida <andrealmeid@collabora.com> # blk-mq.rst
Reviewed-by: Takashi Iwai <tiwai@suse.de> # sound
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:40 +02:00
Mauro Carvalho Chehab
abc59fd4a5 docs: remove some replace macros like |struct foo|
There are three files with replace macros for structs,
mapping them into Sphinx 2.x C domain references.

Well, this is broken on Sphinx 3.x. Also, for Sphinx 2.x,
the automarkup macro should be able to take care of them.

So, let's just drop those.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:40 +02:00
Mauro Carvalho Chehab
5b76632ed9 media: cec-core.rst: don't use c:type for structs
The new C domain code on Sphinx 3 doesn't allow anymore
to use c:type:: for structs.

Now that cdomain.py has backward support, let's use
c:struct:: instead.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:40 +02:00
Mauro Carvalho Chehab
5f536f4a22 media: docs: make RC documents more compatible with Sphinx 3.1+
Sphinx 3.x broke support for the cdomain.py extension, as the
c domain code was rewritten. Due to that, the c tags need to
be re-written, in order to use the new c domain notation.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:39 +02:00
Mauro Carvalho Chehab
937e68053d media: docs: make MC documents more compatible with Sphinx 3.1+
Sphinx 3.x broke support for the cdomain.py extension, as the
c domain code was rewritten. Due to that, the c tags need to
be re-written, in order to use the new c domain notation.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:39 +02:00
Mauro Carvalho Chehab
f9b2e8aa32 media: docs: make DVB documents more compatible with Sphinx 3.1+
Sphinx 3.x broke support for the cdomain.py extension, as the
c domain code was rewritten. Due to that, the c tags need to
be re-written, in order to use the new c domain notation.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:39 +02:00
Mauro Carvalho Chehab
407e84cd1e media: docs: make V4L documents more compatible with Sphinx 3.1+
Sphinx 3.x broke support for the cdomain.py extension, as the
c domain code was rewritten. Due to that, the c tags need to
be re-written, in order to use the new c domain notation.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:39 +02:00
Mauro Carvalho Chehab
01fae02d8d media: docs: make CEC documents compatible with Sphinx 3.1+
Sphinx 3.x broke support for the cdomain.py extension, as the
c domain code was rewritten. Due to that, the c tags need to
be re-written, in order to use the new c domain notation.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:39 +02:00
Nícolas F. R. A. Prado
c51d9b046f docs: automarkup.py: Add cross-reference for parametrized C macros
Sphinx 3 added support for declaring C macros with parameters using the
:c:macro role.

To support automarkup for both functions and parametrized macros using
the same regex (words ending in ()), try to cross-reference to both, and
only fall back to regular text if neither exist.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:38 +02:00
Nícolas F. R. A. Prado
3050edfd79 docs: automarkup.py: Skip C reserved words when cross-referencing
With the transition to Sphinx 3, new warnings were caused by
automarkup, exposing bugs in the name matching.

When automarkup parsed a text like "struct struct" in the documentation,
it tried to cross-reference to a "struct" symbol, which is recognized as
a C reserved word by Sphinx 3, generating a warning.

Add some C reserved words (only the ones that were causing warnings) to
a list and skip them while trying to cross-reference.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:38 +02:00
Nícolas F. R. A. Prado
f66e47f98c docs: automarkup.py: Fix regexes to solve sphinx 3 warnings
With the transition to Sphinx 3, new warnings were generated by
automarkup, exposing bugs in the regexes.

The warnings were caused by the expressions matching words in the
translated versions of the documentation, since any unicode character
was matched.

Fix the regular expression by making the C regexes use ASCII and
ensuring the expressions only match the beginning of words,
in order to avoid warnings like this:

	WARNING: Unparseable C cross-reference: '调用debugfs_rename'

That's probably due to the lack of using spaces between words
on Chinese.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:38 +02:00
Nícolas F. R. A. Prado
06dc65b0fa docs: automarkup.py: Use new C roles in Sphinx 3
While Sphinx 2 used a single c:type role for struct, union, enum and
typedef, Sphinx 3 uses a specific role for each one.
To keep backward compatibility, detect the Sphinx version and use the
correct roles for that version.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:38 +02:00
Mauro Carvalho Chehab
2791f47d26 docs: kerneldoc.py: add support for kerneldoc -nosymbol
Currently, there's no way to exclude identifiers from
a kernel-doc markup. Add support for it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:38 +02:00
Mauro Carvalho Chehab
91fc6d8afe docs: kerneldoc.py: append the name of the parsed doc file
Finding where an error like this was generated:
	../lib/math/div64.c:73: WARNING: Duplicate C declaration, also defined in 'kernel-api'.

Can take some time, as there's no glue about what kernel-doc
tag generated it. It is a way better to display it as:

	.../Documentation/core-api/kernel-api:171: ../lib/math/div64.c:73: WARNING: Duplicate C declaration, also defined in 'kernel-api'.
	Declaration is 'div_s64_rem'.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:37 +02:00
Mauro Carvalho Chehab
95f4949051 docs: cdomain.py: extend it to handle new Sphinx 3.x tags
While most of the C domain parsing is done via kernel-doc,
some RST files use C domain tags directly.

While several of them can be removed for Sphinx < 3.0, due
to automarkup.py, and several others that could be
converted into kernel-doc markups, changes like that are
time-consuming, and may not fit all cases.

As we already have the cdomain.py for handing backward
compatibility with Sphinx versions below 3.0, let's
make it more complete, in order to cover any usage of the
newer tags outside kernel-doc.

This way, it should be feasible to use the new tags inside
the Kernel tree, without losing backward compatibility.

This should allow fixing the remaining warnings with
the Kernel tags.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:37 +02:00
Mauro Carvalho Chehab
71e552aebf docs: cdomain.py: add support for a new Sphinx 3.1+ tag
Since Sphinx 3.0, the C domain code was rewritten, but only
after version 3.1 it got support for setting namespaces on
C domains, with is something that it is required, in order to
document system calls, like ioctl() and others.

As part of changing the documentation subsystem to properly
build with Sphinx 3.1+, add support for such new tag:

	.. c:namespace::"

Such tag optionally replaces the optional "name" tag for functions,
setting a single namespace domain for all C references found
at the file.

With that, it should be possible to convert existing
documentation to be compatible with both Sphinx 1.x/2.x and
3.1+.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:37 +02:00
Mauro Carvalho Chehab
93351d4196 scripts: kernel-doc: allow passing desired Sphinx C domain dialect
When kernel-doc is called via kerneldoc.py, there's no need to
auto-detect the Sphinx version, as the Sphinx module already
knows it. So, add an optional parameter to allow changing the
Sphinx dialect.

As kernel-doc can also be manually called, keep the auto-detection
logic if the parameter was not specified. On such case, emit
a warning if sphinx-build can't be found at PATH.

I ended using a suggestion from Joe for using a more readable
regex, instead of using a complex one with a hidden group like:

	m/^(\d+)\.(\d+)(?:\.?(\d+)?)/

in order to get the optional <patch> argument.

Thanks-to: Joe Perches <joe@perches.com>
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-15 07:49:36 +02:00
Linus Torvalds
3e4fb4346c SPDX patches for 5.10-rc1
Here are some SPDX-specific changes for 5.10-rc1.
 
 They include:
 	- driver fixes to make spdxcheck.pl work properly
 	- add GFDL licenses as "deprecated" but required due to some of
 	  our documentation using them
 	- add Zlib license as "deprecated" but required because we have
 	  code with this license in the tree.
 	- convert some drivers to have SPDX identifiers that previously
 	  didn't have them.
 
 All have been in linux-next for a very long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull SPDX updates from Greg KH:
 "Here are some SPDX-specific changes for 5.10-rc1.

  They include:

   - driver fixes to make spdxcheck.pl work properly

   - add GFDL licenses as "deprecated" but required due to some of our
     documentation using them

   - add Zlib license as "deprecated" but required because we have code
     with this license in the tree.

   - convert some drivers to have SPDX identifiers that previously
     didn't have them.

  All have been in linux-next for a very long time with no reported
  issues"

* tag 'spdx-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
  scripts/spdxcheck.py: handle license identifiers in XML comments
  net/mlx5: IPsec: make spdxcheck.py happy
  LICENSES/deprecated: add Zlib license text
  LICENSE: add GFDL deprecated licenses
  net/qla3xxx: Convert to SPDX license identifiers
  net/qlge: Convert to SPDX license identifiers
  net/qlcnic: Convert to SPDX license identifiers
  scsi/qla2xxx: Convert to SPDX license identifiers
  scsi/qla4xxx: Convert to SPDX license identifiers
2020-10-14 16:19:42 -07:00
Linus Torvalds
fe151462bd Driver Core patches for 5.10-rc1
Here is the "big" set of driver core patches for 5.10-rc1
 
 They include a lot of different things, all related to the driver core
 and/or some driver logic:
 	- sysfs common write functions to make it easier to audit sysfs
 	  attributes
 	- device connection cleanups and fixes
 	- devm helpers for a few functions
 	- NOIO allocations for when devices are being removed
 	- minor cleanups and fixes
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the "big" set of driver core patches for 5.10-rc1

  They include a lot of different things, all related to the driver core
  and/or some driver logic:

   - sysfs common write functions to make it easier to audit sysfs
     attributes

   - device connection cleanups and fixes

   - devm helpers for a few functions

   - NOIO allocations for when devices are being removed

   - minor cleanups and fixes

  All have been in linux-next for a while with no reported issues"

* tag 'driver-core-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (31 commits)
  regmap: debugfs: use semicolons rather than commas to separate statements
  platform/x86: intel_pmc_core: do not create a static struct device
  drivers core: node: Use a more typical macro definition style for ACCESS_ATTR
  drivers core: Use sysfs_emit for shared_cpu_map_show and shared_cpu_list_show
  mm: and drivers core: Convert hugetlb_report_node_meminfo to sysfs_emit
  drivers core: Miscellaneous changes for sysfs_emit
  drivers core: Reindent a couple uses around sysfs_emit
  drivers core: Remove strcat uses around sysfs_emit and neaten
  drivers core: Use sysfs_emit and sysfs_emit_at for show(device *...) functions
  sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
  dyndbg: use keyword, arg varnames for query term pairs
  driver core: force NOIO allocations during unplug
  platform_device: switch to simpler IDA interface
  driver core: platform: Document return type of more functions
  Revert "driver core: Annotate dev_err_probe() with __must_check"
  Revert "test_firmware: Test platform fw loading on non-EFI systems"
  iio: adc: xilinx-xadc: use devm_krealloc()
  hwmon: pmbus: use more devres helpers
  devres: provide devm_krealloc()
  syscore: Use pm_pr_dbg() for syscore_{suspend,resume}()
  ...
2020-10-14 16:09:32 -07:00
Linus Torvalds
5d6c413c92 TTY/Serial patches for 5.10-rc1
Here is the big set of tty and serial driver patches for 5.10-rc1.
 
 Lots of little things in here, including:
 	- tasklet_setup api conversions
 	- sysrq support for capital letters
 	- vt and vc cleanups and unwinding the mess some more
 	- serial driver updates and minor tweaks
 	- new device ids
 	- rs485 support for some drivers
 	- serial binding documentation updates
 	- lots of small serial driver changes for reported issues
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the big set of tty and serial driver patches for 5.10-rc1.

  Lots of little things in here, including:

   - tasklet_setup api conversions

   - sysrq support for capital letters

   - vt and vc cleanups and unwinding the mess some more

   - serial driver updates and minor tweaks

   - new device ids

   - rs485 support for some drivers

   - serial binding documentation updates

   - lots of small serial driver changes for reported issues

  All have been in linux-next for a while with no reported issues"

* tag 'tty-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (79 commits)
  serial: mcf: add sysrq capability
  serial: fsl_lpuart: add sysrq support when using dma
  fbcon: remove no-op fbcon_set_origin()
  tty/sysrq: Extend the sysrq_key_table to cover capital letters
  serial: max310x: rework RX interrupt handling
  serial: 8250_dw: Fix clk-notifier/port suspend deadlock
  serial: 8250: Skip uninitialized TTY port baud rate update
  serial: 8250: Discard RTS/DTS setting from clock update method
  tty: serial: imx: disable TXDC IRQ in imx_uart_shutdown() to avoid IRQ storm
  serial: 8250_fsl: Fix TX interrupt handling condition
  serial: pl011: Fix lockdep splat when handling magic-sysrq interrupt
  tty: serial: fsl_lpuart: fix lpuart32_poll_get_char
  tty: serial: lpuart: fix lpuart32_write usage
  serial: qcom_geni_serial: To correct QUP Version detection logic
  serial: mvebu-uart: fix unused variable warning
  vt_ioctl: make VT_RESIZEX behave like VT_RESIZE
  serial: mvebu-uart: simplify the return expression of mvebu_uart_probe()
  tty: serial: imx: fix link error with CONFIG_SERIAL_CORE_CONSOLE=n
  tty: hvc: fix link error with CONFIG_SERIAL_CORE_CONSOLE=n
  pch_uart: drop double zeroing
  ...
2020-10-14 16:05:52 -07:00
Linus Torvalds
6448cbf662 - New Drivers
- Add support for KTD253
 
  - Fix-ups
    - Add Device Tree documentation; common, kinetic,ktd253
    - Use correct header(s); tosa_lcd, tosa_bl
 
  - Bug Fixes
    - Fix refcount imbalance; sky81452-backlight
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Merge tag 'backlight-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "New Drivers:
   - Add support for KTD253

  Fix-ups:
   - Add Device Tree documentation; common, kinetic,ktd253
   - Use correct header(s); tosa_lcd, tosa_bl

  Bug Fixes:
   - Fix refcount imbalance; sky81452-backlight"

* tag 'backlight-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: tosa_bl: Include the right header
  backlight: tosa_lcd: Include the right header
  backlight: Add Kinetic KTD253 backlight driver
  dt-bindings: backlight: Add Kinetic KTD253 bindings
  dt-bindings: backlight: Add some common backlight properties
  backlight: sky81452-backlight: Fix refcount imbalance on error
2020-10-14 15:59:42 -07:00
Linus Torvalds
1a31c12371 - New Drivers
- Add support for initialising shared (between children) Regmaps
    - Add support for Kontron SL28CPLD
    - Add support for ENE KB3930 Embedded Controller
    - Add support for Intel FPGA PAC MAX 10 BMC
 
  - New Device Support
    - Add support for Power to Ricoh RN5T618
    - Add support for UART to Intel Lakefield
    - Add support for LP87524_Q1 to Texas Instruments LP87565
 
  - New Functionality
    - Device Tree; ene-kb3930, sl28cpld, syscon, lp87565, lp87524-q1
    - Use new helper dev_err_probe(); madera-core, stmfx, wcd934x
    - Use new GPIOD API; dm355evm_msp
    - Add wake-up capability; sprd-sc27xx-spi
    - Add ACPI support; kempld-core
 
  - Fix-ups
    - Trivial (spelling/whitespace); Kconfig, ab8500
    - Fix for unused variables; khadas-mcu, kempld-core
    - Remove unused header file(s); mt6360-core
    - Use correct IRQ flags in docs; act8945a, gateworks-gsc, rohm,bd70528-pmic
    - Add COMPILE_TEST support; asic3, tmio_core
    - Add dependency on I2C; SL28CPLD
 
  - Bug Fixes
    - Fix memory leak(s); sm501
    - Do not free regmap_config's 'name' until exit; syscon
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Merge tag 'mfd-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add support for initialising shared (between children) Regmaps
   - Add support for Kontron SL28CPLD
   - Add support for ENE KB3930 Embedded Controller
   - Add support for Intel FPGA PAC MAX 10 BMC

  New Device Support:
   - Add support for Power to Ricoh RN5T618
   - Add support for UART to Intel Lakefield
   - Add support for LP87524_Q1 to Texas Instruments LP87565

  New Functionality:
   - Device Tree; ene-kb3930, sl28cpld, syscon, lp87565, lp87524-q1
   - Use new helper dev_err_probe(); madera-core, stmfx, wcd934x
   - Use new GPIOD API; dm355evm_msp
   - Add wake-up capability; sprd-sc27xx-spi
   - Add ACPI support; kempld-core

  Fix-ups:
   - Trivial (spelling/whitespace); Kconfig, ab8500
   - Fix for unused variables; khadas-mcu, kempld-core
   - Remove unused header file(s); mt6360-core
   - Use correct IRQ flags in docs; act8945a, gateworks-gsc, rohm,bd70528-pmic
   - Add COMPILE_TEST support; asic3, tmio_core
   - Add dependency on I2C; SL28CPLD

  Bug Fixes:
   - Fix memory leak(s); sm501
   - Do not free regmap_config's 'name' until exit; syscon"

* tag 'mfd-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (34 commits)
  mfd: kempld-core: Fix unused variable 'kempld_acpi_table' when !ACPI
  mfd: sl28cpld: Depend on I2C
  mfd: asic3: Build if COMPILE_TEST=y
  dt-bindings: mfd: Correct interrupt flags in examples
  mfd: Add ACPI support to Kontron PLD driver
  mfd: intel-m10-bmc: Add Intel MAX 10 BMC chip support for Intel FPGA PAC
  mfd: lp87565: Add LP87524-Q1 variant
  dt-bindings: mfd: Add LP87524-Q1
  dt-bindings: mfd: lp87565: Convert to yaml
  mfd: mt6360: Remove unused include <linux/version.h>
  mfd: sm501: Fix leaks in probe()
  mfd: syscon: Don't free allocated name for regmap_config
  dt-bindings: mfd: syscon: Document Exynos3 and Exynos5433 compatibles
  dt-bindings: mfd: syscon: Merge Samsung Exynos Sysreg bindings
  dt-bindings: mfd: ab8500: Remove weird Unicode characters
  mfd: sprd: Add wakeup capability for PMIC IRQ
  mfd: intel-lpss: Add device IDs for UART ports for Lakefield
  mfd: dm355evm_msp: Convert LEDs to GPIO descriptor table
  mfd: wcd934x: Simplify with dev_err_probe()
  mfd: stmfx: Simplify with dev_err_probe()
  ...
2020-10-14 15:56:58 -07:00
Linus Torvalds
f888bdf982 Devicetree updates for v5.10:
- Update dtc to upstream version v1.6.0-31-gcbca977ea121
 
 - dtx_diff help text reformatting
 
 - Speed-up validation time for binding and dtb checks using json for
   intermediate files
 
 - Add support for running yamllint on DT schema files
 
 - Remove old booting-without-of.rst
 
 - Extend the example schema to address common issues
 
 - Cleanup handling of additionalProperties/unevaluatedProperties
 
 - Ensure all DSI controller schemas reference dsi-controller.yaml
 
 - Vendor prefixes for Zealz, Wandbord/Technexion, Embest RIoT, Rex, DFI,
   and Cisco Meraki
 
 - Convert at25, SPMI bus, TI hwlock, HiSilicon Hi3660 USB3 PHY, Arm
   SP805 watchdog, Arm SP804, and Samsung 11-pin USB connector to DT
   schema
 
 - Convert HiSilicon SoC and syscon bindings to DT schema
 
 - Convert SiFive Risc-V L2 cache, PLIC, PRCI, and PWM to DT schema
 
 - Convert i.MX bindings for w1, crypto, rng, SIM, PM, DDR,
    SATA, vf610 GPIO, and UART to DT schema
 
 - Add i.MX 8M compatible strings
 
 - Add LM81 and DS1780 as trivial devices
 
 - Various missing properties added to fix dtb validation warnings
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Merge tag 'devicetree-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:

 - Update dtc to upstream version v1.6.0-31-gcbca977ea121

 - dtx_diff help text reformatting

 - Speed-up validation time for binding and dtb checks using json for
   intermediate files

 - Add support for running yamllint on DT schema files

 - Remove old booting-without-of.rst

 - Extend the example schema to address common issues

 - Cleanup handling of additionalProperties/unevaluatedProperties

 - Ensure all DSI controller schemas reference dsi-controller.yaml

 - Vendor prefixes for Zealz, Wandbord/Technexion, Embest RIoT, Rex,
   DFI, and Cisco Meraki

 - Convert at25, SPMI bus, TI hwlock, HiSilicon Hi3660 USB3 PHY, Arm
   SP805 watchdog, Arm SP804, and Samsung 11-pin USB connector to DT
   schema

 - Convert HiSilicon SoC and syscon bindings to DT schema

 - Convert SiFive Risc-V L2 cache, PLIC, PRCI, and PWM to DT schema

 - Convert i.MX bindings for w1, crypto, rng, SIM, PM, DDR, SATA, vf610
   GPIO, and UART to DT schema

 - Add i.MX 8M compatible strings

 - Add LM81 and DS1780 as trivial devices

 - Various missing properties added to fix dtb validation warnings

* tag 'devicetree-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (111 commits)
  dt-bindings: misc: explicitly add #address-cells for slave mode
  spi: dt-bindings: spi-controller: explicitly require #address-cells=<0> for slave mode
  dt: Remove booting-without-of.rst
  dt-bindings: update usb-c-connector example
  dt-bindings: arm: hisilicon: add missing properties into cpuctrl.yaml
  dt-bindings: arm: hisilicon: add missing properties into sysctrl.yaml
  dt-bindings: pwm: imx: document i.MX compatibles
  scripts/dtc: Update to upstream version v1.6.0-31-gcbca977ea121
  dt-bindings: Add running yamllint to dt_binding_check
  dt-bindings: powerpc: Add a schema for the 'sleep' property
  dt-bindings: pinctrl: sirf: Fix typo abitrary
  dt-bindings: pinctrl: qcom: Fix typo abitrary
  dt-bindings: Explicitly allow additional properties in common schemas
  dt-bindings: Use 'additionalProperties' instead of 'unevaluatedProperties'
  dt-bindings: Add missing 'unevaluatedProperties'
  Docs: Fixing spelling errors in Documentation/devicetree/bindings/
  dt-bindings: arm: hisilicon: convert Hi6220 domain controller bindings to json-schema
  dt-bindings: riscv: convert pwm bindings to json-schema
  dt-bindings: riscv: convert plic bindings to json-schema
  dt-bindings: fu540: prci: convert PRCI bindings to json-schema
  ...
2020-10-14 15:31:58 -07:00
Linus Torvalds
b4e1bce85f Pin control bulk changes for the v5.10 kernel cycle
Core changes:
 
 - NONE whatsoever, we don't even touch the core files this
   time around.
 
 New drivers:
 
 - New driver for the Toshiba Visconti SoC.
 
 - New subdriver for the Qualcomm MSM8226 SoC.
 
 - New subdriver for the Actions Semiconductor S500 SoC.
 
 - New subdriver for the Mediatek MT8192 SoC.
 
 - New subdriver for the Microchip SAMA7G5 SoC.
 
 Driver enhancements:
 
 - Intel Cherryview and Baytrail cleanups and refactorings.
 
 - Enhanced support for the Renesas R8A7790, more pins and
   groups.
 
 - Some optimizations for the MCP23S08 MCP23x17 variant.
 
 - Some cleanups around the Actions Semiconductor subdrivers.
 
 - A bunch of cleanups around the SH-PFC and Emma Mobile
   drivers.
 
 - The "SH-PFC" (literally SuperH pin function controller, I
   think) subdirectory is now renamed to the more neutral
   "renesas", as these are not very much centered around
   SuperH anymore.
 
 - Non-critical fixes for the Aspeed driver.
 
 - Non-critical fixes for the Ingenic (MIPS!) driver.
 
 - Fix a bunch of missing pins on the AMD pinctrl driver.
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Merge tag 'pinctrl-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "Core changes:

   - NONE whatsoever, we don't even touch the core files this time
     around.

  New drivers:

   - New driver for the Toshiba Visconti SoC.

   - New subdriver for the Qualcomm MSM8226 SoC.

   - New subdriver for the Actions Semiconductor S500 SoC.

   - New subdriver for the Mediatek MT8192 SoC.

   - New subdriver for the Microchip SAMA7G5 SoC.

  Driver enhancements:

   - Intel Cherryview and Baytrail cleanups and refactorings.

   - Enhanced support for the Renesas R8A7790, more pins and groups.

   - Some optimizations for the MCP23S08 MCP23x17 variant.

   - Some cleanups around the Actions Semiconductor subdrivers.

   - A bunch of cleanups around the SH-PFC and Emma Mobile drivers.

   - The "SH-PFC" (literally SuperH pin function controller, I think)
     subdirectory is now renamed to the more neutral "renesas", as these
     are not very much centered around SuperH anymore.

   - Non-critical fixes for the Aspeed driver.

   - Non-critical fixes for the Ingenic (MIPS!) driver.

   - Fix a bunch of missing pins on the AMD pinctrl driver"

* tag 'pinctrl-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (78 commits)
  pinctrl: amd: Add missing pins to the pin group list
  dt-bindings: pinctrl: sunxi: Allow pinctrl with more interrupt banks
  pinctrl: visconti: PINCTRL_TMPV7700 should depend on ARCH_VISCONTI
  pinctrl: mediatek: Free eint data on failure
  pinctrl: single: fix debug output when #pinctrl-cells = 2
  pinctrl: single: fix pinctrl_spec.args_count bounds check
  pinctrl: sunrisepoint: Modify COMMUNITY macros to be consistent
  pinctrl: cannonlake: Modify COMMUNITY macros to be consistent
  pinctrl: tigerlake: Fix register offsets for TGL-H variant
  pinctrl: Document pinctrl-single,pins when #pinctrl-cells = 2
  pinctrl: mediatek: use devm_platform_ioremap_resource_byname()
  pinctrl: nuvoton: npcm7xx: Constify static ops structs
  pinctrl: mediatek: mt7622: add antsel pins/groups
  pinctrl: ocelot: simplify the return expression of ocelot_gpiochip_register()
  pinctrl: at91-pio4: add support for sama7g5 SoC
  dt-bindings: pinctrl: at91-pio4: add microchip,sama7g5
  pinctrl: spear: simplify the return expression of tvc_connect()
  pinctrl: spear: simplify the return expression of spear310_pinctrl_probe
  pinctrl: sprd: use module_platform_driver to simplify the code
  pinctrl: Ingenic: Add I2S pins support for Ingenic SoCs.
  ...
2020-10-14 15:25:04 -07:00
Linus Torvalds
7fafb54c7d Pull request for 5.10-rc1.
Quite a lot of stuff is going on here. Great cleanups/fixes from Marek
 and others are biggest part.
 
 I limited CPU LED trigger to 8 LEDs, because it was willing to
 register 1024 "triggers" on machine with 1024 CPUs. I don't believe it
 will cause any problems, but we can raise the limit if it does.
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Merge tag 'leds-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds

Pull LED updates from Pavel Machek:
 "Quite a lot of stuff is going on here. Great cleanups/fixes from Marek
  and others are biggest part.

  I limited CPU LED trigger to 8 LEDs, because it was willing to
  register 1024 'triggers' on machine with 1024 CPUs. I don't believe it
  will cause any problems, but we can raise the limit if it does"

* tag 'leds-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (84 commits)
  leds: pwm: Remove platform_data support
  leds: lm3697: Fix out-of-bound access
  leds: ns2: do not guard OF match pointer with of_match_ptr
  leds: ns2: convert to fwnode API
  leds: tlc591xx: fix leak of device node iterator
  leds: pca963x: use struct led_init_data when registering
  leds: pca963x: register LEDs immediately after parsing, get rid of platdata
  leds: tca6507: remove binding comment
  leds: tca6507: cosmetic change: use helper variable
  leds: tca6507: do not set GPIO names
  dt-bindings: leds: tca6507: convert to YAML
  ledtrig-cpu: Limit to 8 CPUs
  leds: TODO: Add documentation about possible subsystem improvements
  leds: pca9532: read pwm settings from device tree
  leds: pca9532: correct shift computation in pca9532_getled
  leds: lm36274: Fix warning for undefined parameters
  leds: lm3532: Fix warnings for undefined parameters
  leds: pca963x: use flexible array
  leds: pca963x: cosmetic: rename variables
  leds: pca963x: cosmetic: rename variables
  ...
2020-10-14 15:22:07 -07:00
Linus Torvalds
55e0500eb5 SCSI misc on 20201013
This series consists of the usual driver updates (ufs, qla2xxx, tcmu,
 ibmvfc, lpfc, smartpqi, hisi_sas, qedi, qedf, mpt3sas) and minor bug
 fixes.  There are only three core changes: adding sense codes,
 cleaning up noretry and adding an option for limitless retries.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "The usual driver updates (ufs, qla2xxx, tcmu, ibmvfc, lpfc, smartpqi,
  hisi_sas, qedi, qedf, mpt3sas) and minor bug fixes.

  There are only three core changes: adding sense codes, cleaning up
  noretry and adding an option for limitless retries"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (226 commits)
  scsi: hisi_sas: Recover PHY state according to the status before reset
  scsi: hisi_sas: Filter out new PHY up events during suspend
  scsi: hisi_sas: Add device link between SCSI devices and hisi_hba
  scsi: hisi_sas: Add check for methods _PS0 and _PR0
  scsi: hisi_sas: Add controller runtime PM support for v3 hw
  scsi: hisi_sas: Switch to new framework to support suspend and resume
  scsi: hisi_sas: Use hisi_hba->cq_nvecs for calling calling synchronize_irq()
  scsi: qedf: Remove redundant assignment to variable 'rc'
  scsi: lpfc: Remove unneeded variable 'status' in lpfc_fcp_cpu_map_store()
  scsi: snic: Convert to use DEFINE_SEQ_ATTRIBUTE macro
  scsi: qla4xxx: Delete unneeded variable 'status' in qla4xxx_process_ddb_changed
  scsi: sun_esp: Use module_platform_driver to simplify the code
  scsi: sun3x_esp: Use module_platform_driver to simplify the code
  scsi: sni_53c710: Use module_platform_driver to simplify the code
  scsi: qlogicpti: Use module_platform_driver to simplify the code
  scsi: mac_esp: Use module_platform_driver to simplify the code
  scsi: jazz_esp: Use module_platform_driver to simplify the code
  scsi: mvumi: Fix error return in mvumi_io_attach()
  scsi: lpfc: Drop nodelist reference on error in lpfc_gen_req()
  scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs()
  ...
2020-10-14 15:15:35 -07:00
Linus Torvalds
612e7a4c16 kernel-clone-v5.9
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Merge tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

Pull kernel_clone() updates from Christian Brauner:
 "During the v5.9 merge window we reworked the process creation
  codepaths across multiple architectures. After this work we were only
  left with the _do_fork() helper based on the struct kernel_clone_args
  calling convention. As was pointed out _do_fork() isn't valid
  kernelese especially for a helper that isn't just static.

  This series removes the _do_fork() helper and introduces the new
  kernel_clone() helper. The process creation cleanup didn't change the
  name to something more reasonable mainly because _do_fork() was used
  in quite a few places. So sending this as a separate series seemed the
  better strategy.

  I originally intended to send this early in the v5.9 development cycle
  after the merge window had closed but given that this was touching
  quite a few places I decided to defer this until the v5.10 merge
  window"

* tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  sched: remove _do_fork()
  tracing: switch to kernel_clone()
  kgdbts: switch to kernel_clone()
  kprobes: switch to kernel_clone()
  x86: switch to kernel_clone()
  sparc: switch to kernel_clone()
  nios2: switch to kernel_clone()
  m68k: switch to kernel_clone()
  ia64: switch to kernel_clone()
  h8300: switch to kernel_clone()
  fork: introduce kernel_clone()
2020-10-14 14:32:52 -07:00
Mauro Carvalho Chehab
39ec39d771 docs: amdgpu: fix a warning when building the documentation
As reported by Sphinx:

	Documentation/gpu/amdgpu.rst:200: WARNING: Inline emphasis start-string without end-string.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-14 15:26:58 -04:00
Linus Torvalds
531d29b0b6 IOMMU Updates for Linux v5.10
Including:
 
 	- ARM-SMMU Updates from Will:
 
 	  - Continued SVM enablement, where page-table is shared with
 	    CPU
 
 	  - Groundwork to support integrated SMMU with Adreno GPU
 
 	  - Allow disabling of MSI-based polling on the kernel
 	    command-line
 
 	  - Minor driver fixes and cleanups (octal permissions, error
 	    messages, ...)
 
 	- Secure Nested Paging Support for AMD IOMMU. The IOMMU will
 	  fault when a device tries DMA on memory owned by a guest. This
 	  needs new fault-types as well as a rewrite of the IOMMU memory
 	  semaphore for command completions.
 
 	- Allow broken Intel IOMMUs (wrong address widths reported) to
 	  still be used for interrupt remapping.
 
 	- IOMMU UAPI updates for supporting vSVA, where the IOMMU can
 	  access address spaces of processes running in a VM.
 
 	- Support for the MT8167 IOMMU in the Mediatek IOMMU driver.
 
 	- Device-tree updates for the Renesas driver to support r8a7742.
 
 	- Several smaller fixes and cleanups all over the place.
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Merge tag 'iommu-updates-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:

 - ARM-SMMU Updates from Will:

      - Continued SVM enablement, where page-table is shared with CPU

      - Groundwork to support integrated SMMU with Adreno GPU

      - Allow disabling of MSI-based polling on the kernel command-line

      - Minor driver fixes and cleanups (octal permissions, error
        messages, ...)

 - Secure Nested Paging Support for AMD IOMMU. The IOMMU will fault when
   a device tries DMA on memory owned by a guest. This needs new
   fault-types as well as a rewrite of the IOMMU memory semaphore for
   command completions.

 - Allow broken Intel IOMMUs (wrong address widths reported) to still be
   used for interrupt remapping.

 - IOMMU UAPI updates for supporting vSVA, where the IOMMU can access
   address spaces of processes running in a VM.

 - Support for the MT8167 IOMMU in the Mediatek IOMMU driver.

 - Device-tree updates for the Renesas driver to support r8a7742.

 - Several smaller fixes and cleanups all over the place.

* tag 'iommu-updates-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (57 commits)
  iommu/vt-d: Gracefully handle DMAR units with no supported address widths
  iommu/vt-d: Check UAPI data processed by IOMMU core
  iommu/uapi: Handle data and argsz filled by users
  iommu/uapi: Rename uapi functions
  iommu/uapi: Use named union for user data
  iommu/uapi: Add argsz for user filled data
  docs: IOMMU user API
  iommu/qcom: add missing put_device() call in qcom_iommu_of_xlate()
  iommu/arm-smmu-v3: Add SVA device feature
  iommu/arm-smmu-v3: Check for SVA features
  iommu/arm-smmu-v3: Seize private ASID
  iommu/arm-smmu-v3: Share process page tables
  iommu/arm-smmu-v3: Move definitions to a header
  iommu/io-pgtable-arm: Move some definitions to a header
  iommu/arm-smmu-v3: Ensure queue is read after updating prod pointer
  iommu/amd: Re-purpose Exclusion range registers to support SNP CWWB
  iommu/amd: Add support for RMP_PAGE_FAULT and RMP_HW_ERR
  iommu/amd: Use 4K page for completion wait write-back semaphore
  iommu/tegra-smmu: Allow to group clients in same swgroup
  iommu/tegra-smmu: Fix iova->phys translation
  ...
2020-10-14 12:08:34 -07:00
Linus Torvalds
defb53a7c7 PNP updates for 5.10-rc1
- Remove the now unused pnp_find_card() function (Christoph Hellwig).
 
  - Drop duplicate pci.h include from the quirks code and add an
    "internal.h" include to acpi_pnp.c to fix a compiler warning (Tian
    Tao).
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Merge tag 'pnp-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull PNP updates from Rafael Wysocki:
 "These clean the PNP code somewhat:

   - Remove the now unused pnp_find_card() function (Christoph Hellwig)

   - Drop duplicate pci.h include from the quirks code and add an
     "internal.h" include to acpi_pnp.c to fix a compiler warning (Tian
     Tao)"

* tag 'pnp-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PNP: remove the now unused pnp_find_card() function
  PNP: ACPI: Fix missing-prototypes in acpi_pnp.c
  PNP: quirks: Fix duplicate included pci.h
2020-10-14 11:50:01 -07:00
Linus Torvalds
cf1d2b44f6 ACPI updates for 5.10-rc1
- Add support for generic initiator-only proximity domains to
    the ACPI NUMA code and the architectures using it (Jonathan
    Cameron).
 
  - Clean up some non-ACPICA code referring to debug facilities from
    ACPICA that are not actually used in there (Hanjun Guo).
 
  - Add new DPTF driver for the PCH FIVR participant (Srinivas
    Pandruvada).
 
  - Reduce overhead related to accessing GPE registers in ACPICA and
    the OS interface layer and make it possible to access GPE registers
    using logical addresses if they are memory-mapped (Rafael Wysocki).
 
  - Update the ACPICA code in the kernel to upstream revision 20200925
    including changes as follows:
    * Add predefined names from the SMBus sepcification (Bob Moore).
    * Update acpi_help UUID list (Bob Moore).
    * Return exceptions for string-to-integer conversions in iASL (Bob
      Moore).
    * Add a new "ALL <NameSeg>" debugger command (Bob Moore).
    * Add support for 64 bit risc-v compilation (Colin Ian King).
    * Do assorted cleanups (Bob Moore, Colin Ian King, Randy Dunlap).
 
  - Add new ACPI backlight whitelist entry for HP 635 Notebook (Alex
    Hung).
 
  - Move TPS68470 OpRegion driver to drivers/acpi/pmic/ and split out
    Kconfig and Makefile specific for ACPI PMIC (Andy Shevchenko).
 
  - Clean up the ACPI SoC driver for AMD SoCs (Hanjun Guo).
 
  - Add missing config_item_put() to fix refcount leak (Hanjun Guo).
 
  - Drop lefrover field from struct acpi_memory_device (Hanjun Guo).
 
  - Make the ACPI extlog driver check for RDMSR failures (Ben
    Hutchings).
 
  - Fix handling of lid state changes in the ACPI button driver when
    input device is closed (Dmitry Torokhov).
 
  - Fix several assorted build issues (Barnabás Pőcze, John Garry,
    Nathan Chancellor, Tian Tao).
 
  - Drop unused inline functions and reduce code duplication by using
    kobj_to_dev() in the NFIT parsing code (YueHaibing, Wang Qing).
 
  - Serialize tools/power/acpi Makefile (Thomas Renninger).
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Merge tag 'acpi-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These add support for generic initiator-only proximity domains to the
  ACPI NUMA code and the architectures using it, clean up some
  non-ACPICA code referring to debug facilities from ACPICA, reduce the
  overhead related to accessing GPE registers, add a new DPTF (Dynamic
  Power and Thermal Framework) participant driver, update the ACPICA
  code in the kernel to upstream revision 20200925, add a new ACPI
  backlight whitelist entry, fix a few assorted issues and clean up some
  code.

  Specifics:

   - Add support for generic initiator-only proximity domains to the
     ACPI NUMA code and the architectures using it (Jonathan Cameron)

   - Clean up some non-ACPICA code referring to debug facilities from
     ACPICA that are not actually used in there (Hanjun Guo)

   - Add new DPTF driver for the PCH FIVR participant (Srinivas
     Pandruvada)

   - Reduce overhead related to accessing GPE registers in ACPICA and
     the OS interface layer and make it possible to access GPE registers
     using logical addresses if they are memory-mapped (Rafael Wysocki)

   - Update the ACPICA code in the kernel to upstream revision 20200925
     including changes as follows:
      + Add predefined names from the SMBus sepcification (Bob Moore)
      + Update acpi_help UUID list (Bob Moore)
      + Return exceptions for string-to-integer conversions in iASL (Bob
        Moore)
      + Add a new "ALL <NameSeg>" debugger command (Bob Moore)
      + Add support for 64 bit risc-v compilation (Colin Ian King)
      + Do assorted cleanups (Bob Moore, Colin Ian King, Randy Dunlap)

   - Add new ACPI backlight whitelist entry for HP 635 Notebook (Alex
     Hung)

   - Move TPS68470 OpRegion driver to drivers/acpi/pmic/ and split out
     Kconfig and Makefile specific for ACPI PMIC (Andy Shevchenko)

   - Clean up the ACPI SoC driver for AMD SoCs (Hanjun Guo)

   - Add missing config_item_put() to fix refcount leak (Hanjun Guo)

   - Drop lefrover field from struct acpi_memory_device (Hanjun Guo)

   - Make the ACPI extlog driver check for RDMSR failures (Ben
     Hutchings)

   - Fix handling of lid state changes in the ACPI button driver when
     input device is closed (Dmitry Torokhov)

   - Fix several assorted build issues (Barnabás Pőcze, John Garry,
     Nathan Chancellor, Tian Tao)

   - Drop unused inline functions and reduce code duplication by using
     kobj_to_dev() in the NFIT parsing code (YueHaibing, Wang Qing)

   - Serialize tools/power/acpi Makefile (Thomas Renninger)"

* tag 'acpi-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
  ACPICA: Update version to 20200925 Version 20200925
  ACPICA: Remove unnecessary semicolon
  ACPICA: Debugger: Add a new command: "ALL <NameSeg>"
  ACPICA: iASL: Return exceptions for string-to-integer conversions
  ACPICA: acpi_help: Update UUID list
  ACPICA: Add predefined names found in the SMBus sepcification
  ACPICA: Tree-wide: fix various typos and spelling mistakes
  ACPICA: Drop the repeated word "an" in a comment
  ACPICA: Add support for 64 bit risc-v compilation
  ACPI: button: fix handling lid state changes when input device closed
  tools/power/acpi: Serialize Makefile
  ACPI: scan: Replace ACPI_DEBUG_PRINT() with pr_debug()
  ACPI: memhotplug: Remove 'state' from struct acpi_memory_device
  ACPI / extlog: Check for RDMSR failure
  ACPI: Make acpi_evaluate_dsm() prototype consistent
  docs: mm: numaperf.rst Add brief description for access class 1.
  node: Add access1 class to represent CPU to memory characteristics
  ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3
  ACPI: Let ACPI know we support Generic Initiator Affinity Structures
  x86: Support Generic Initiator only proximity domains
  ...
2020-10-14 11:42:04 -07:00
Linus Torvalds
0b8417c141 Power management updates for 5.10-rc1
- Rework cpufreq statistics collection to allow it to take place
    when fast frequency switching is enabled in the governor (Viresh
    Kumar).
 
  - Make the cpufreq core set the frequency scale on behalf of the
    driver and update several cpufreq drivers accordingly (Ionela
    Voinescu, Valentin Schneider).
 
  - Add new hardware support to the STI and qcom cpufreq drivers and
    improve them (Alain Volmat, Manivannan Sadhasivam).
 
  - Fix multiple assorted issues in cpufreq drivers (Jon Hunter,
    Krzysztof Kozlowski, Matthias Kaehlcke, Pali Rohár, Stephan
    Gerhold, Viresh Kumar).
 
  - Fix several assorted issues in the operating performance points
    (OPP) framework (Stephan Gerhold, Viresh Kumar).
 
  - Allow devfreq drivers to fetch devfreq instances by DT enumeration
    instead of using explicit phandles and modify the devfreq core
    code to support driver-specific devfreq DT bindings (Leonard
    Crestez, Chanwoo Choi).
 
  - Improve initial hardware resetting in the tegra30 devfreq driver
    and clean up the tegra cpuidle driver (Dmitry Osipenko).
 
  - Update the cpuidle core to collect state entry rejection
    statistics and expose them via sysfs (Lina Iyer).
 
  - Improve the ACPI _CST code handling diagnostics (Chen Yu).
 
  - Update the PSCI cpuidle driver to allow the PM domain
    initialization to occur in the OSI mode as well as in the PC
    mode (Ulf Hansson).
 
  - Rework the generic power domains (genpd) core code to allow
    domain power off transition to be aborted in the absence of the
    "power off" domain callback (Ulf Hansson).
 
  - Fix two suspend-to-idle issues in the ACPI EC driver (Rafael
    Wysocki).
 
  - Fix the handling of timer_expires in the PM-runtime framework on
    32-bit systems and the handling of device links in it (Grygorii
    Strashko, Xiang Chen).
 
  - Add IO requests batching support to the hibernate image saving and
    reading code and drop a bogus get_gendisk() from there (Xiaoyi
    Chen, Christoph Hellwig).
 
  - Allow PCIe ports to be put into the D3cold power state if they
    are power-manageable via ACPI (Lukas Wunner).
 
  - Add missing header file include to a power capping driver (Pujin
    Shi).
 
  - Clean up the qcom-cpr AVS driver a bit (Liu Shixin).
 
  - Kevin Hilman steps down as designated reviwer of adaptive voltage
    scaling (AVS) driverrs (Kevin Hilman).
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Merge tag 'pm-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These rework the collection of cpufreq statistics to allow it to take
  place if fast frequency switching is enabled in the governor, rework
  the frequency invariance handling in the cpufreq core and drivers, add
  new hardware support to a couple of cpufreq drivers, fix a number of
  assorted issues and clean up the code all over.

  Specifics:

   - Rework cpufreq statistics collection to allow it to take place when
     fast frequency switching is enabled in the governor (Viresh Kumar).

   - Make the cpufreq core set the frequency scale on behalf of the
     driver and update several cpufreq drivers accordingly (Ionela
     Voinescu, Valentin Schneider).

   - Add new hardware support to the STI and qcom cpufreq drivers and
     improve them (Alain Volmat, Manivannan Sadhasivam).

   - Fix multiple assorted issues in cpufreq drivers (Jon Hunter,
     Krzysztof Kozlowski, Matthias Kaehlcke, Pali Rohár, Stephan
     Gerhold, Viresh Kumar).

   - Fix several assorted issues in the operating performance points
     (OPP) framework (Stephan Gerhold, Viresh Kumar).

   - Allow devfreq drivers to fetch devfreq instances by DT enumeration
     instead of using explicit phandles and modify the devfreq core code
     to support driver-specific devfreq DT bindings (Leonard Crestez,
     Chanwoo Choi).

   - Improve initial hardware resetting in the tegra30 devfreq driver
     and clean up the tegra cpuidle driver (Dmitry Osipenko).

   - Update the cpuidle core to collect state entry rejection statistics
     and expose them via sysfs (Lina Iyer).

   - Improve the ACPI _CST code handling diagnostics (Chen Yu).

   - Update the PSCI cpuidle driver to allow the PM domain
     initialization to occur in the OSI mode as well as in the PC mode
     (Ulf Hansson).

   - Rework the generic power domains (genpd) core code to allow domain
     power off transition to be aborted in the absence of the "power
     off" domain callback (Ulf Hansson).

   - Fix two suspend-to-idle issues in the ACPI EC driver (Rafael
     Wysocki).

   - Fix the handling of timer_expires in the PM-runtime framework on
     32-bit systems and the handling of device links in it (Grygorii
     Strashko, Xiang Chen).

   - Add IO requests batching support to the hibernate image saving and
     reading code and drop a bogus get_gendisk() from there (Xiaoyi
     Chen, Christoph Hellwig).

   - Allow PCIe ports to be put into the D3cold power state if they are
     power-manageable via ACPI (Lukas Wunner).

   - Add missing header file include to a power capping driver (Pujin
     Shi).

   - Clean up the qcom-cpr AVS driver a bit (Liu Shixin).

   - Kevin Hilman steps down as designated reviwer of adaptive voltage
     scaling (AVS) drivers (Kevin Hilman)"

* tag 'pm-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
  cpufreq: stats: Fix string format specifier mismatch
  arm: disable frequency invariance for CONFIG_BL_SWITCHER
  cpufreq,arm,arm64: restructure definitions of arch_set_freq_scale()
  cpufreq: stats: Add memory barrier to store_reset()
  cpufreq: schedutil: Simplify sugov_fast_switch()
  ACPI: EC: PM: Drop ec_no_wakeup check from acpi_ec_dispatch_gpe()
  ACPI: EC: PM: Flush EC work unconditionally after wakeup
  PCI/ACPI: Whitelist hotplug ports for D3 if power managed by ACPI
  PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
  cpufreq: Move traces and update to policy->cur to cpufreq core
  cpufreq: stats: Enable stats for fast-switch as well
  cpufreq: stats: Mark few conditionals with unlikely()
  cpufreq: stats: Remove locking
  cpufreq: stats: Defer stats update to cpufreq_stats_record_transition()
  PM: domains: Allow to abort power off when no ->power_off() callback
  PM: domains: Rename power state enums for genpd
  PM / devfreq: tegra30: Improve initial hardware resetting
  PM / devfreq: event: Change prototype of devfreq_event_get_edev_by_phandle function
  PM / devfreq: Change prototype of devfreq_get_devfreq_by_phandle function
  PM / devfreq: Add devfreq_get_devfreq_by_node function
  ...
2020-10-14 10:45:41 -07:00
Linus Torvalds
d5660df4a5 Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:
 "181 patches.

  Subsystems affected by this patch series: kbuild, scripts, ntfs,
  ocfs2, vfs, mm (slab, slub, kmemleak, dax, debug, pagecache, fadvise,
  gup, swap, memremap, memcg, selftests, pagemap, mincore, hmm, dma,
  memory-failure, vmallo and migration)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (181 commits)
  mm/migrate: remove obsolete comment about device public
  mm/migrate: remove cpages-- in migrate_vma_finalize()
  mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary
  memblock: use separate iterators for memory and reserved regions
  memblock: implement for_each_reserved_mem_region() using __next_mem_region()
  memblock: remove unused memblock_mem_size()
  x86/setup: simplify reserve_crashkernel()
  x86/setup: simplify initrd relocation and reservation
  arch, drivers: replace for_each_membock() with for_each_mem_range()
  arch, mm: replace for_each_memblock() with for_each_mem_pfn_range()
  memblock: reduce number of parameters in for_each_mem_range()
  memblock: make memblock_debug and related functionality private
  memblock: make for_each_memblock_type() iterator private
  mircoblaze: drop unneeded NUMA and sparsemem initializations
  riscv: drop unneeded node initialization
  h8300, nds32, openrisc: simplify detection of memory extents
  arm64: numa: simplify dummy_numa_init()
  arm, xtensa: simplify initialization of high memory pages
  dma-contiguous: simplify cma_early_percent_memory()
  KVM: PPC: Book3S HV: simplify kvm_cma_reserve()
  ...
2020-10-14 09:57:24 -07:00
Zhen Lei
bd36e51d10 dt-bindings: misc: explicitly add #address-cells for slave mode
Explicitly add "#address-cells = <0>" and "#size-cells = <0>" to
eliminate below warnings.

(spi_bus_bridge): /example-0/spi: incorrect #address-cells for SPI bus
(spi_bus_bridge): /example-0/spi: incorrect #size-cells for SPI bus
(spi_bus_reg): Failed prerequisite 'spi_bus_bridge'

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20201013160845.1772-5-thunder.leizhen@huawei.com
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-14 08:42:25 -05:00
Zhen Lei
faaa30dd1f spi: dt-bindings: spi-controller: explicitly require #address-cells=<0> for slave mode
scripts/dtc/checks.c:
if (get_property(node, "spi-slave"))
	spi_addr_cells = 0;
if (node_addr_cells(node) != spi_addr_cells)
	FAIL(c, dti, node, "incorrect #address-cells for SPI bus");
if (node_size_cells(node) != 0)
	FAIL(c, dti, node, "incorrect #size-cells for SPI bus");

The above code in check_spi_bus_bridge() require that the number of address
cells must be 0. So we should explicitly declare "#address-cells = <0>".

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20201013160845.1772-4-thunder.leizhen@huawei.com
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-14 08:40:20 -05:00
Nobuhiro Iwamatsu
7e65fa4a49 watchdog: bindings: Add binding documentation for Toshiba Visconti watchdog device
Add documentation for the binding of Toshiba Visconti SoC's watchdog.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20201005023012.603026-2-nobuhiro1.iwamatsu@toshiba.co.jp
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-10-14 15:22:58 +02:00
Baoquan He
540809be52 doc/vm: fix typo in the hugetlb admin documentation
Change 'pecify' to 'Specify'.

Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lkml.kernel.org/r/20200723032248.24772-4-bhe@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:33 -07:00
Patricia Alfonso
9ab5be9768 KASAN: Testing Documentation
Include documentation on how to test KASAN using CONFIG_TEST_KASAN_KUNIT
and CONFIG_TEST_KASAN_MODULE.

Signed-off-by: Patricia Alfonso <trishalfonso@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20200915035828.570483-5-davidgow@google.com
Link: https://lkml.kernel.org/r/20200910070331.3358048-5-davidgow@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:32 -07:00
Alexander Gordeev
25356cfad6 docs/vm: fix 'mm_count' vs 'mm_users' counter confusion
In the context of the anonymous address space lifespan description the
'mm_users' reference counter is confused with 'mm_count'.  I.e a "zombie"
mm gets released when "mm_count" becomes zero, not "mm_users".

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lkml.kernel.org/r/1597040695-32633-1-git-send-email-agordeev@linux.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:32 -07:00
Muchun Song
5f9a4f4a70 mm: memcontrol: add the missing numa_stat interface for cgroup v2
In the cgroup v1, we have a numa_stat interface.  This is useful for
providing visibility into the numa locality information within an memcg
since the pages are allowed to be allocated from any physical node.  One
of the use cases is evaluating application performance by combining this
information with the application's CPU allocation.  But the cgroup v2 does
not.  So this patch adds the missing information.

Suggested-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Link: https://lkml.kernel.org/r/20200916100030.71698-2-songmuchun@bytedance.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:30 -07:00
Dan Williams
3b0d31011d x86/numa: add 'nohmat' option
Disable parsing of the HMAT for debug, to workaround broken platform
instances, or cases where it is otherwise not wanted.

[rdunlap@infradead.org: fix build when CONFIG_ACPI is not set]
  Link: https://lkml.kernel.org/r/70e5ee34-9809-a997-7b49-499e4be61307@infradead.org

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Jia He <justin.he@arm.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: Will Deacon <will@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Hulk Robot <hulkci@huawei.com>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Link: https://lkml.kernel.org/r/159643095540.4062302.732962081968036212.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:27 -07:00
Hui Su
1abbef4f51 mm,kmemleak-test.c: move kmemleak-test.c to samples dir
kmemleak-test.c is just a kmemleak test module, which also can not be used
as a built-in kernel module.  Thus, i think it may should not be in mm
dir, and move the kmemleak-test.c to samples/kmemleak/kmemleak-test.c.
Fix the spelling of built-in by the way.

Signed-off-by: Hui Su <sh_def@163.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Rob Herring <robh@kernel.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Divya Indi <divya.indi@oracle.com>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: David Howells <dhowells@redhat.com>
Link: https://lkml.kernel.org/r/20200925183729.GA172837@rlk
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:27 -07:00
Lukas Bulwahn
eb38f37c3c kbuild: doc: describe proper script invocation
During an investigation to fix up the execute bits of scripts in the
kernel repository, Andrew Morton and Kees Cook pointed out that the
execute bit should not matter, and that build scripts cannot rely on that.
Kees could not point to any documentation, though.

Masahiro Yamada explained the convention of setting execute bits to make
it easier for manual script invocation.

Provide some basic documentation how the build shall invoke scripts, such
that the execute bits do not matter, and acknowledge that execute bits are
useful nonetheless.

This serves as reference for further clean-up patches in the future.

Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ujjwal Kumar <ujjwalkumar0501@gmail.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/lkml/20200830174409.c24c3f67addcce0cea9a9d4c@linux-foundation.org/
Link: https://lore.kernel.org/lkml/202008271102.FEB906C88@keescook/
Link: https://lore.kernel.org/linux-kbuild/CAK7LNAQdrvMkDA6ApDJCGr+5db8SiPo=G+p8EiOvnnGvEN80gA@mail.gmail.com/
Link: https://lkml.kernel.org/r/20201001075723.24246-1-lukas.bulwahn@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:26 -07:00
Marco Elver
527f6750d9 kasan: remove mentions of unsupported Clang versions
Since the kernel now requires at least Clang 10.0.1, remove any mention of
old Clang versions and simplify the documentation.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200902225911.209899-7-ndesaulniers@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:26 -07:00
Jonathan Marek
d05a58047c dt-bindings: clock: add QCOM SM8150 and SM8250 display clock bindings
Add device tree bindings for display clock controller for
Qualcomm Technology Inc's SM8150 and SM8250 SoCs.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> (SM8250)
Link: https://lore.kernel.org/r/20200927190653.13876-2-jonathan@marek.ca
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-10-13 18:18:06 -07:00
Jonathan Marek
dafb992a95 dt-bindings: clock: add SM8250 QCOM video clock bindings
Add device tree bindings for video clock controller for SM8250 SoCs.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200923160635.28370-4-jonathan@marek.ca
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-10-13 18:05:04 -07:00
Jonathan Marek
df3f61d2cd dt-bindings: clock: add SM8150 QCOM video clock bindings
Add device tree bindings for video clock controller for SM8150 SoCs.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200923160635.28370-3-jonathan@marek.ca
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-10-13 18:05:03 -07:00
Jonathan Marek
70d795d2d8 dt-bindings: clock: combine qcom,sdm845-videocc and qcom,sc7180-videocc
These two bindings are almost identical, so combine them into one. This
will make it easier to add the sm8150 and sm8250 videocc bindings.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200923160635.28370-2-jonathan@marek.ca
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-10-13 18:05:03 -07:00
Rishabh Bhatnagar
526b9e0cf3 remoteproc: Add recovery configuration to the sysfs interface
Add recovery configuration to the sysfs interface. This will
allow usage of this configuration feature in production
devices where access to debugfs might be limited.

Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Link: https://lore.kernel.org/r/1601662144-5964-4-git-send-email-rishabhb@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-13 19:22:51 -05:00
Rishabh Bhatnagar
f75c6043a3 remoteproc: Add coredump as part of sysfs interface
Add coredump as part of the sysfs interface. This will
allow usage of this configuration feature in production
devices where access to debugfs might be limited.

Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Link: https://lore.kernel.org/r/1601662144-5964-3-git-send-email-rishabhb@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-13 19:22:04 -05:00
Suman Anna
5ee79c2ed5 dt-bindings: remoteproc: Add bindings for R5F subsystem on TI K3 SoCs
The Texas Instruments K3 family of SoCs have one or more dual-core
Arm Cortex R5F processor subsystems/clusters (R5FSS). The clusters
can be split between multiple voltage domains as well. Add the device
tree bindings document for these R5F subsystem devices. These R5F
processors do not have an MMU, and so require fixed memory carveout
regions matching the firmware image addresses. The nodes require more
than one memory region, with the first memory region used for DMA
allocations at runtime. The remaining memory regions are reserved
and are used for the loading and running of the R5F remote processors.
The R5F processors can also optionally use any internal on-chip SRAM
memories either for executing code or using it as fast-access data.

The added example illustrates the DT nodes for the single R5FSS device
present on K3 AM65x family of SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20201002234234.20704-2-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-13 18:34:37 -05:00
Linus Torvalds
7b540812cc selinux/stable-5.10 PR 20201012
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Merge tag 'selinux-pr-20201012' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux updates from Paul Moore:
 "A decent number of SELinux patches for v5.10, twenty two in total. The
  highlights are listed below, but all of the patches pass our test
  suite and merge cleanly.

   - A number of changes to how the SELinux policy is loaded and managed
     inside the kernel with the goal of improving the atomicity of a
     SELinux policy load operation.

     These changes account for the bulk of the diffstat as well as the
     patch count. A special thanks to everyone who contributed patches
     and fixes for this work.

   - Convert the SELinux policy read-write lock to RCU.

   - A tracepoint was added for audited SELinux access control events;
     this should help provide a more unified backtrace across kernel and
     userspace.

   - Allow the removal of security.selinux xattrs when a SELinux policy
     is not loaded.

   - Enable policy capabilities in SELinux policies created with the
     scripts/selinux/mdp tool.

   - Provide some "no sooner than" dates for the SELinux checkreqprot
     sysfs deprecation"

* tag 'selinux-pr-20201012' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: (22 commits)
  selinux: provide a "no sooner than" date for the checkreqprot removal
  selinux: Add helper functions to get and set checkreqprot
  selinux: access policycaps with READ_ONCE/WRITE_ONCE
  selinux: simplify away security_policydb_len()
  selinux: move policy mutex to selinux_state, use in lockdep checks
  selinux: fix error handling bugs in security_load_policy()
  selinux: convert policy read-write lock to RCU
  selinux: delete repeated words in comments
  selinux: add basic filtering for audit trace events
  selinux: add tracepoint on audited events
  selinux: Create new booleans and class dirs out of tree
  selinux: Standardize string literal usage for selinuxfs directory names
  selinux: Refactor selinuxfs directory populating functions
  selinux: Create function for selinuxfs directory cleanup
  selinux: permit removing security.selinux xattr before policy load
  selinux: fix memdup.cocci warnings
  selinux: avoid dereferencing the policy prior to initialization
  selinux: fix allocation failure check on newpolicy->sidtab
  selinux: refactor changing booleans
  selinux: move policy commit after updating selinuxfs
  ...
2020-10-13 16:29:55 -07:00
Willem de Bruijn
254941f323 docs: networking: update XPS to account for netif_set_xps_queue
With the introduction of netif_set_xps_queue, XPS can be enabled
by the driver at initialization.

Update the documentation to reflect this, as otherwise users
may incorrectly believe that the feature is off by default.

Fixes: 537c00de1c ("net: Add functions netif_reset_xps_queue and netif_set_xps_queue")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-13 16:21:54 -07:00
Linus Torvalds
d594d8f411 printk changes for 5.10
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Merge tag 'printk-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:
 "The big new thing is the fully lockless ringbuffer implementation,
  including the support for continuous lines. It will allow to store and
  read messages in any situation wihtout the risk of deadlocks and
  without the need of temporary per-CPU buffers.

  The access is still serialized by logbuf_lock. It synchronizes few
  more operations, for example, temporary buffer for formatting the
  message, syslog and kmsg_dump operations. The lock removal is being
  discussed and should be ready for the next release.

  The continuous lines are handled exactly the same way as before to
  avoid regressions in user space. It means that they are appended to
  the last message when the caller is the same. Only the last message
  can be extended.

  The data ring includes plain text of the messages. Except for an
  integer at the beginning of each message that points back to the
  descriptor ring with other metadata.

  The dictionary has to stay. journalctl uses it to filter the log. It
  allows to show messages related to a given device. The dictionary
  values are stored in the descriptor ring with the other metadata.

  This is the first part of the printk rework as discussed at Plumbers
  2019, see https://lore.kernel.org/r/87k1acz5rx.fsf@linutronix.de. The
  next big step will be handling consoles by kthreads during the normal
  system operation. It will require special handling of situations when
  the kthreads could not get scheduled, for example, early boot,
  suspend, panic.

  Other changes:

   - Add John Ogness as a reviewer for printk subsystem. He is author of
     the rework and is familiar with the code and history.

   - Fix locking in serial8250_do_startup() to prevent lockdep report.

   - Few code cleanups"

* tag 'printk-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (27 commits)
  printk: Use fallthrough pseudo-keyword
  printk: reduce setup_text_buf size to LOG_LINE_MAX
  printk: avoid and/or handle record truncation
  printk: remove dict ring
  printk: move dictionary keys to dev_printk_info
  printk: move printk_info into separate array
  printk: reimplement log_cont using record extension
  printk: ringbuffer: add finalization/extension support
  printk: ringbuffer: change representation of states
  printk: ringbuffer: clear initial reserved fields
  printk: ringbuffer: add BLK_DATALESS() macro
  printk: ringbuffer: relocate get_data()
  printk: ringbuffer: avoid memcpy() on state_var
  printk: ringbuffer: fix setting state in desc_read()
  kernel.h: Move oops_in_progress to printk.h
  scripts/gdb: update for lockless printk ringbuffer
  scripts/gdb: add utils.read_ulong()
  docs: vmcoreinfo: add lockless printk ringbuffer vmcoreinfo
  printk: reduce LOG_BUF_SHIFT range for H8300
  printk: ringbuffer: support dataless records
  ...
2020-10-13 15:58:10 -07:00
Fabien Parent
8adea9b945 dt-bindings: clock: mediatek: add bindings for MT8167 clocks
Add binding documentation for topckgen, apmixedsys, infracfg, audsys,
imgsys, mfgcfg, vdecsys on MT8167 SoC.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200918132303.2831815-1-fparent@baylibre.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-10-13 15:46:01 -07:00
Keith Busch
3b481d9135 block: add zone specific block statuses
A zoned device with limited resources to open or activate zones may
return an error when the host exceeds those limits. The same command may
be successful if retried later, but the host needs to wait for specific
zone states before it should expect a retry to succeed. Have the block
layer provide an appropriate status for these conditions so applications
can distinuguish this error for special handling.

Cc: linux-api@vger.kernel.org
Cc: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-13 15:05:05 -06:00
Linus Torvalds
3ad11d7ac8 block-5.10-2020-10-12
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Merge tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - Series of merge handling cleanups (Baolin, Christoph)

 - Series of blk-throttle fixes and cleanups (Baolin)

 - Series cleaning up BDI, seperating the block device from the
   backing_dev_info (Christoph)

 - Removal of bdget() as a generic API (Christoph)

 - Removal of blkdev_get() as a generic API (Christoph)

 - Cleanup of is-partition checks (Christoph)

 - Series reworking disk revalidation (Christoph)

 - Series cleaning up bio flags (Christoph)

 - bio crypt fixes (Eric)

 - IO stats inflight tweak (Gabriel)

 - blk-mq tags fixes (Hannes)

 - Buffer invalidation fixes (Jan)

 - Allow soft limits for zone append (Johannes)

 - Shared tag set improvements (John, Kashyap)

 - Allow IOPRIO_CLASS_RT for CAP_SYS_NICE (Khazhismel)

 - DM no-wait support (Mike, Konstantin)

 - Request allocation improvements (Ming)

 - Allow md/dm/bcache to use IO stat helpers (Song)

 - Series improving blk-iocost (Tejun)

 - Various cleanups (Geert, Damien, Danny, Julia, Tetsuo, Tian, Wang,
   Xianting, Yang, Yufen, yangerkun)

* tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (191 commits)
  block: fix uapi blkzoned.h comments
  blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
  blk-mq: get rid of the dead flush handle code path
  block: get rid of unnecessary local variable
  block: fix comment and add lockdep assert
  blk-mq: use helper function to test hw stopped
  block: use helper function to test queue register
  block: remove redundant mq check
  block: invoke blk_mq_exit_sched no matter whether have .exit_sched
  percpu_ref: don't refer to ref->data if it isn't allocated
  block: ratelimit handle_bad_sector() message
  blk-throttle: Re-use the throtl_set_slice_end()
  blk-throttle: Open code __throtl_de/enqueue_tg()
  blk-throttle: Move service tree validation out of the throtl_rb_first()
  blk-throttle: Move the list operation after list validation
  blk-throttle: Fix IO hang for a corner case
  blk-throttle: Avoid tracking latency if low limit is invalid
  blk-throttle: Avoid getting the current time if tg->last_finish_time is 0
  blk-throttle: Remove a meaningless parameter for throtl_downgrade_state()
  block: Remove redundant 'return' statement
  ...
2020-10-13 12:12:44 -07:00
Rob Herring
441848282c dt: Remove booting-without-of.rst
booting-without-of.rst is an ancient document that first outlined
Flattened DeviceTree on PowerPC initially. The DT world has evolved a
lot in the 15 years since and booting-without-of.rst is pretty stale.
The name of the document itself is confusing if you don't understand the
evolution from real 'OpenFirmware'. Most of what booting-without-of.rst
contains is now in the DT specification (which evolved out of the
ePAPR). The few things that weren't documented in the DT specification
are now.

All that remains is the boot entry details, so let's move these to arch
specific documents. The exception is arm which already has the same
details documented.

Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-mips@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-13 13:33:16 -05:00
Linus Torvalds
c4439713e8 hwmon changes for v5.10-rc1
New driver and chip support:
 - Moortec MR75203 PVT controller
 - MPS Multi-phase mp2975 controller
 - ADM1266
 - Zen3 CPUs
 - Intel MAX 10 BMC
 
 Enhancements:
 - Support for rated attributes in hwmon core
 - MAX20730
   - Device monitoring via debugfs
   - VOUT readin adjustment vie devicetree bindings
 - LM75
   - Devicetree support
   - Regulator support
 - Improved accumulationm logic in amd_energy driver
 - Added fan sensor to gsc-hwmon driver
 - Support for simplified I2C probing
 
 Various other minor fixes and improvements.
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Merge tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New driver and chip support:
   - Moortec MR75203 PVT controller
   - MPS Multi-phase mp2975 controller
   - ADM1266
   - Zen3 CPUs
   - Intel MAX 10 BMC

  Enhancements:
   - Support for rated attributes in hwmon core
   - MAX20730:
      - Device monitoring via debugfs
      - VOUT readin adjustment vie devicetree bindings
   - LM75:
      - Devicetree support
      - Regulator support
   - Improved accumulationm logic in amd_energy driver
   - Added fan sensor to gsc-hwmon driver
   - Support for simplified I2C probing

  Various other minor fixes and improvements"

* tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (64 commits)
  hwmon: (pmbus/max20730) adjust the vout reading given voltage divider
  dt-bindings: hwmon: max20730: adding device tree doc for max20730
  hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller
  hwmon: Add DT bindings schema for PVT controller
  dt-bindings: hwmon: Add the +vs supply to the lm75 bindings
  dt-bindings: hwmon: Convert lm75 bindings to yaml
  docs: hwmon: (ltc2945) update datasheet link
  hwmon: (mlxreg-fan) Fix double "Mellanox"
  hwmon: (pmbus/max20730) add device monitoring via debugfs
  hwmon: (pmbus/max34440) Fix OC fault limits
  hwmon: (bt1-pvt) Wait for the completion with timeout
  hwmon: (bt1-pvt) Cache current update timeout
  hwmon: (bt1-pvt) Test sensor power supply on probe
  hwmon: (lm75) Add regulator support
  hwmon: Add hwmon driver for Intel MAX 10 BMC
  dt-bindings: Add MP2975 voltage regulator device
  hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller
  hwmon: (tmp513) fix spelling typo in comments
  hwmon: (amd_energy) Update driver documentation
  hwmon: (amd_energy) Improve the accumulation logic
  ...
2020-10-13 10:15:31 -07:00
Linus Torvalds
0486beaf88 GPIO bulk changes for the v5.10 kernel cycle:
Core changes:
 
 - The big core change is the updated (v2) userspace character
   device API. This corrects badly designed 64-bit alignment around
   the line events. We also add the debounce request feature.
   This echoes the often quotes passage from Frederick Brooks
   "The mythical man-month" to always throw one away, which we
   have seen before in things such as V4L2. So we put in a new
   one and deprecate and obsolete the old one.
 
 - All example tools in tools/gpio/* are migrated to the new API
   to set a good example. The libgpiod userspace library has been
   augmented to use this new API pretty much from day 1.
 
 - Some misc API hardening by using strn* function calls has been
   added as well.
 
 - Use the simpler IDA interface for GPIO chip instance enumeration.
 
 - Add device core function for counting string arrays in
   device properties.
 
 - Provide a generic library function kfree_strarray() that can
   be used throughout the kernel.
 
 Driver enhancements:
 
 - The DesignWare dwapb-gpio driver has been enhanced and now
   uses the IRQ handling in the gpiolib core.
 
 - The mockup and aggregator drivers have seen some substantial
   code clean-up and now use more of the core kernel
   inftrastructure.
 
 - Misc cleanups using dev_err_probe().
 
 - The MXC drivers (Freescale/NXP) can now be built modularized,
   which makes modularized GKI Android kernels happy.
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Merge tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This time very little driver changes but lots of core changes.

  We have some interesting cooperative work for ARM and Intel alike,
  making the GPIO subsystem more and more suitable for industrial
  systems and the like, in addition to the in-kernel users.

  We touch driver core (device properties) and lib/* by adding one
  simple string array free function, these are authored by Andy
  Shevchenko who is a well known and recognized core helpers maintainers
  so this should be fine.

  We also see some Android GKI-related modularization in the MXC
  drivers.

  Core changes:

   - The big core change is the updated (v2) userspace character device
     API.

     This corrects badly designed 64-bit alignment around the line
     events. We also add the debounce request feature. This echoes the
     often quotes passage from Frederick Brooks "The mythical man-month"
     to always throw one away, which we have seen before in things such
     as V4L2. So we put in a new one and deprecate and obsolete the old
     one.

   - All example tools in tools/gpio/* are migrated to the new API to
     set a good example. The libgpiod userspace library has been
     augmented to use this new API pretty much from day 1.

   - Some misc API hardening by using strn* function calls has been
     added as well.

   - Use the simpler IDA interface for GPIO chip instance enumeration.

   - Add device core function for counting string arrays in device
     properties.

   - Provide a generic library function kfree_strarray() that can be
     used throughout the kernel.

  Driver enhancements:

   - The DesignWare dwapb-gpio driver has been enhanced and now uses the
     IRQ handling in the gpiolib core.

   - The mockup and aggregator drivers have seen some substantial code
     clean-up and now use more of the core kernel inftrastructure.

   - Misc cleanups using dev_err_probe().

   - The MXC drivers (Freescale/NXP) can now be built modularized, which
     makes modularized GKI Android kernels happy"

* tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (73 commits)
  gpiolib: Update header block in gpiolib-cdev.h
  gpiolib: cdev: switch from kstrdup() to kstrndup()
  docs: gpio: add a new document to its index.rst
  gpio: pca953x: Add support for the NXP PCAL9554B/C
  tools: gpio: add debounce support to gpio-event-mon
  tools: gpio: add multi-line monitoring to gpio-event-mon
  tools: gpio: port gpio-event-mon to v2 uAPI
  tools: gpio: port gpio-hammer to v2 uAPI
  tools: gpio: rename nlines to num_lines
  tools: gpio: port gpio-watch to v2 uAPI
  tools: gpio: port lsgpio to v2 uAPI
  gpio: uapi: document uAPI v1 as deprecated
  gpiolib: cdev: support setting debounce
  gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL
  gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL
  gpiolib: cdev: support edge detection for uAPI v2
  gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL
  gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL
  gpiolib: add build option for CDEV v1 ABI
  gpiolib: make cdev a build option
  ...
2020-10-13 10:09:33 -07:00
Linus Torvalds
a996b9c617 spi: Updates for v5.10
There's quite a lot of changes for SPI in this release but none in the
 core, they're all mostly small driver updates and additions.  Some of
 the more notable changes include:
 
  - A huge set of cleanups, optimizations and improvements for the
    DesignWare driver from Serge Semin finishing up the work started
    last release.
  - Conversion of the Zynq gqspi driver to spi-mem.
  - Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742.
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Merge tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "There's quite a lot of changes for SPI in this release but none in the
  core, they're all mostly small driver updates and additions. Some of
  the more notable changes include:

   - A huge set of cleanups, optimizations and improvements for the
     DesignWare driver from Serge Semin finishing up the work started
     last release.

   - Conversion of the Zynq gqspi driver to spi-mem.

   - Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742"

* tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (137 commits)
  spi: cadence: Add SPI transfer delays
  spi: dw: Add Baikal-T1 SPI Controller bindings
  spi: dw: Add Baikal-T1 SPI Controller glue driver
  spi: dw: Add poll-based SPI transfers support
  spi: dw: Introduce max mem-ops SPI bus frequency setting
  spi: dw: Add memory operations support
  spi: dw: Add generic DW SSI status-check method
  spi: dw: Move num-of retries parameter to the header file
  spi: dw: Explicitly de-assert CS on SPI transfer completion
  spi: dw: De-assert chip-select on reset
  spi: dw: Discard chip enabling on DMA setup error
  spi: dw: Unmask IRQs after enabling the chip
  spi: dw: Perform IRQ setup in a dedicated function
  spi: dw: Refactor IRQ-based SPI transfer procedure
  spi: dw: Refactor data IO procedure
  spi: dw: Add DW SPI controller config structure
  spi: dw: Update Rx sample delay in the config function
  spi: dw: Simplify the SPI bus speed config procedure
  spi: dw: Update SPI bus speed in a config function
  spi: dw: Detach SPI device specific CR0 config method
  ...
2020-10-13 10:03:12 -07:00
Linus Torvalds
1724e02e02 regulator: Updates for v5.10
This is a fairly small release for the regulator API, there's quite a
 few new devices supported and some important improvements around coupled
 regulators in the core but mostly just small fixes and improvements
 otherwise.
 
  - Fixes and cleanups around the handling of coupled regulators.
  - A special driver for some Raspberry Pi panels with some unusually
    custom stuff around them.
  - Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek RT4801
    and RTMV20, Rohm BD9576MUF and BD9573MUF.
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Merge tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This is a fairly small release for the regulator API, there's quite a
  few new devices supported and some important improvements around
  coupled regulators in the core but mostly just small fixes and
  improvements otherwise.

  Summary:

   - Fixes and cleanups around the handling of coupled regulators.

   - A special driver for some Raspberry Pi panels with some unusually
     custom stuff around them.

   - Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek
     RT4801 and RTMV20, Rohm BD9576MUF and BD9573MUF"

* tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (89 commits)
  regulator: bd9576: Fix print
  regulator: bd9576: fix regulator binfdings dt node names
  dt-bindings: regulator: document pm8950 and pm8953 smd regulators
  regulator: qcom_smd: add pm8953 regulators
  regulator: Make constraint debug processing conditional on DEBUG
  regulator: qcom: labibb: Constify static structs
  regulator: dt-bindings: Document the PM660/PM660L PMICs entries
  regulator: qcom_smd: Add PM660/PM660L regulator support
  regulator: dt-bindings: Document the PM660/660L SPMI PMIC entries
  regulator: qcom_spmi: Add PM660/PM660L regulators
  regulator: qcom_spmi: Add support for new regulator types
  regulator: core: Enlarge max OF property name length to 64 chars
  regulator: tps65910: use regmap accessors
  regulator: rtmv20: Add missing regcache cache only before marked as dirty
  regulator: rtmv20: Update DT binding document and property name parsing
  regulator: rtmv20: Add DT-binding document for Richtek RTMV20
  regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator
  regulator: resolve supply after creating regulator
  regulator: print symbolic errors in kernel messages
  regulator: print state at boot
  ...
2020-10-13 09:56:25 -07:00
Linus Torvalds
fd5c32d808 media updates for v5.10-rc1
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Merge tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - the usbvision driver was dropped from staging

 - the Zoran driver were re-added at staging. It gained lots of
   improvements, and was converted to use videobuf2 API

 - a new virtual driver (vidtv) was added in order to allow testing the
   digital TV framework and APIs

 - the media uAPI documentation gained a glossary with commonly used
   terms, helping to simplify some parts of the docs

 - more cleanups at the atomisp driver

 - Mediatek VPU gained support for MT8183

 - added support for codecs with supports doing colorspace conversion
   (CSC)

 - support for CSC API was added at vivid and rksip1 drivers

 - added a helper core support and uAPI for better supporting H.264
   codecs

 - added support for Renesas R8A774E1

 - use the new SPDX GFDL-1.1-no-invariants-or-later license on media
   uAPI docs, instead of a license text

 - Venus driver has gained VP9 codec support

 - lots of other cleanups and driver improvements

* tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (555 commits)
  media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning
  media: tvp7002: fix uninitialized variable warning
  media: s5k5baf: drop 'data' field in struct s5k5baf_fw
  media: dt-bindings: media: venus: Add an optional power domain for perf voting
  media: rcar-vin: rcar-dma: Fix setting VNIS_REG for RAW8 formats
  media: staging: rkisp1: uapi: Do not use BIT() macro
  media: v4l2-mem2mem: Fix spurious v4l2_m2m_buf_done
  media: usbtv: Fix refcounting mixup
  media: zoran.rst: place it at the right place this time
  media: add Zoran cardlist
  media: admin-guide: update cardlists
  media: siano: rename a duplicated card string
  media: zoran: move documentation file to the right place
  media: atomisp: fixes build breakage for ISP2400 due to a cleanup
  media: zoran: fix mixed case on vars
  media: zoran: get rid of an unused var
  media: zoran: use upper case for card types
  media: zoran: fix sparse warnings
  media: zoran: fix smatch warning
  media: zoran: update TODO
  ...
2020-10-13 09:37:02 -07:00
Linus Torvalds
647412daeb MMC core:
- Export SDIO revision and info strings to userspace
  - Add support for specifying mmc/mmcblk index via mmc aliases in DT
 
 MMC host:
  - Enable support for async probe for all mmc host drivers
  - Enable compile testing of multiple host drivers
  - dw_mmc: Enable the Synopsys DesignWare driver for RISCV and CSKY
  - mtk-sd: Fixup support for CQHCI
  - owl-mmc: Add support for the actions,s700-mmc variant
  - renesas_sdhi: Fix regression (temporary) for re-insertion of SD cards
  - renesas_sdhi: Add support for the r8a774e1 variant
  - renesas_sdhi/tmio: Improvements for tunings
  - renesas_sdhi/tmio: Rework support for reset of controller
  - sdhci-acpi: Fix HS400 tuning for devices with invalid presets on AMDI0040
  - sdhci_am654: Improve support for tunings
  - sdhci_am654: Add support for input tap delays
  - sdhci_am654: Add workaround for card detect debounce timer
  - sdhci-am654: Add support for the TI's J7200 variants
  - sdhci-esdhc-imx: Fix support for manual tuning
  - sdhci-iproc: Enable support for eMMC DDR 3.3V for bcm2711
  - sdhci-msm: Fix stability issues with HS400 for sc7180
  - sdhci-of-sparx5: Add Sparx5 SoC eMMC driver
  - sdhci-of-esdhc: Fixup reference clock source selection
  - sdhci-pci: Add LTR support for some Intel BYT controllers
  - sdhci-pci-gli: Add CQHCI Support for GL9763E
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Merge tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Export SDIO revision and info strings to userspace
   - Add support for specifying mmc/mmcblk index via mmc aliases in DT

 MMC host:
   - Enable support for async probe for all mmc host drivers
   - Enable compile testing of multiple host drivers
   - dw_mmc: Enable the Synopsys DesignWare driver for RISCV and CSKY
   - mtk-sd: Fixup support for CQHCI
   - owl-mmc: Add support for the actions,s700-mmc variant
   - renesas_sdhi: Fix regression (temporary) for re-insertion of SD cards
   - renesas_sdhi: Add support for the r8a774e1 variant
   - renesas_sdhi/tmio: Improvements for tunings
   - renesas_sdhi/tmio: Rework support for reset of controller
   - sdhci-acpi: Fix HS400 tuning for devices with invalid presets on AMDI0040
   - sdhci_am654: Improve support for tunings
   - sdhci_am654: Add support for input tap delays
   - sdhci_am654: Add workaround for card detect debounce timer
   - sdhci-am654: Add support for the TI's J7200 variants
   - sdhci-esdhc-imx: Fix support for manual tuning
   - sdhci-iproc: Enable support for eMMC DDR 3.3V for bcm2711
   - sdhci-msm: Fix stability issues with HS400 for sc7180
   - sdhci-of-sparx5: Add Sparx5 SoC eMMC driver
   - sdhci-of-esdhc: Fixup reference clock source selection
   - sdhci-pci: Add LTR support for some Intel BYT controllers
   - sdhci-pci-gli: Add CQHCI Support for GL9763E"

* tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (91 commits)
  mmc: sdhci_am654: Fix module autoload
  mmc: renesas_sdhi: workaround a regression when reinserting SD cards
  mmc: sdhci-pci-gli: Add CQHCI Support for GL9763E
  mmc: sdhci-acpi: AMDI0040: Set SDHCI_QUIRK2_PRESET_VALUE_BROKEN
  mmc: sdhci_am654: Enable tuning for SDR50
  mmc: sdhci_am654: Add support for software tuning
  mmc: sdhci_am654: Add support for input tap delay
  mmc: sdhci_am654: Fix hard coded otap delay array size
  dt-bindings: mmc: sdhci-am654: Add documentation for input tap delay
  dt-bindings: mmc: sdhci-am654: Convert sdhci-am654 controller documentation to json schema
  mmc: sdhci-of-esdhc: fix reference clock source selection
  mmc: host: fix depends for MMC_MESON_GX w/ COMPILE_TEST
  mmc: sdhci-s3c: hide forward declaration of of_device_id behind CONFIG_OF
  mmc: sdhci: fix indentation mistakes
  mmc: moxart: remove unneeded check for drvdata
  mmc: renesas_sdhi: drop local flag for tuning
  mmc: rtsx_usb_sdmmc: simplify the return expression of sd_change_phase()
  mmc: core: document mmc_hw_reset()
  mmc: mediatek: Drop pointer to mmc_host from msdc_host
  dt-bindings: mmc: owl: add compatible string actions,s700-mmc
  ...
2020-10-13 09:25:24 -07:00
Thomas Cedeno
5294bac97e LSM: SafeSetID: Add GID security policy handling
The SafeSetID LSM has functionality for restricting setuid() calls based
on its configured security policies. This patch adds the analogous
functionality for setgid() calls. This is mostly a copy-and-paste change
with some code deduplication, plus slight modifications/name changes to
the policy-rule-related structs (now contain GID rules in addition to
the UID ones) and some type generalization since SafeSetID now needs to
deal with kgid_t and kuid_t types.

Signed-off-by: Thomas Cedeno <thomascedeno@google.com>
Signed-off-by: Micah Morton <mortonm@chromium.org>
2020-10-13 09:17:35 -07:00
Linus Torvalds
39a5101f98 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Allow DRBG testing through user-space af_alg
   - Add tcrypt speed testing support for keyed hashes
   - Add type-safe init/exit hooks for ahash

  Algorithms:
   - Mark arc4 as obsolete and pending for future removal
   - Mark anubis, khazad, sead and tea as obsolete
   - Improve boot-time xor benchmark
   - Add OSCCA SM2 asymmetric cipher algorithm and use it for integrity

  Drivers:
   - Fixes and enhancement for XTS in caam
   - Add support for XIP8001B hwrng in xiphera-trng
   - Add RNG and hash support in sun8i-ce/sun8i-ss
   - Allow imx-rngc to be used by kernel entropy pool
   - Use crypto engine in omap-sham
   - Add support for Ingenic X1830 with ingenic"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (205 commits)
  X.509: Fix modular build of public_key_sm2
  crypto: xor - Remove unused variable count in do_xor_speed
  X.509: fix error return value on the failed path
  crypto: bcm - Verify GCM/CCM key length in setkey
  crypto: qat - drop input parameter from adf_enable_aer()
  crypto: qat - fix function parameters descriptions
  crypto: atmel-tdes - use semicolons rather than commas to separate statements
  crypto: drivers - use semicolons rather than commas to separate statements
  hwrng: mxc-rnga - use semicolons rather than commas to separate statements
  hwrng: iproc-rng200 - use semicolons rather than commas to separate statements
  hwrng: stm32 - use semicolons rather than commas to separate statements
  crypto: xor - use ktime for template benchmarking
  crypto: xor - defer load time benchmark to a later time
  crypto: hisilicon/zip - fix the uninitalized 'curr_qm_qp_num'
  crypto: hisilicon/zip - fix the return value when device is busy
  crypto: hisilicon/zip - fix zero length input in GZIP decompress
  crypto: hisilicon/zip - fix the uncleared debug registers
  lib/mpi: Fix unused variable warnings
  crypto: x86/poly1305 - Remove assignments with no effect
  hwrng: npcm - modify readl to readb
  ...
2020-10-13 08:50:16 -07:00
Biju Das
588614be61 dt-bindings: update usb-c-connector example
Some hardware designs have USB typec connector attached to both
SoC and super speed mux. We need to use separate connector node for
such design.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20200920134905.4370-2-biju.das.jz@bp.renesas.com
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-13 07:53:34 -05:00
Rafael J. Wysocki
e4174ff78b Merge branch 'acpi-numa'
* acpi-numa:
  docs: mm: numaperf.rst Add brief description for access class 1.
  node: Add access1 class to represent CPU to memory characteristics
  ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3
  ACPI: Let ACPI know we support Generic Initiator Affinity Structures
  x86: Support Generic Initiator only proximity domains
  ACPI: Support Generic Initiator only domains
  ACPI / NUMA: Add stub function for pxm_to_node()
  irq-chip/gic-v3-its: Fix crash if ITS is in a proximity domain without processor or memory
  ACPI: Remove side effect of partly creating a node in acpi_get_node()
  ACPI: Rename acpi_map_pxm_to_online_node() to pxm_to_online_node()
  ACPI: Remove side effect of partly creating a node in acpi_map_pxm_to_online_node()
  ACPI: Do not create new NUMA domains from ACPI static tables that are not SRAT
  ACPI: Add out of bounds and numa_off protections to pxm_to_node()
2020-10-13 14:44:50 +02:00
Rafael J. Wysocki
acd448f300 Merge branches 'acpi-tables', 'acpi-pmic', 'acpi-dptf' and 'acpi-soc'
* acpi-tables:
  ACPI: NFIT: Use kobj_to_dev() instead

* acpi-pmic:
  MAINTAINERS: Use my kernel.org address for Intel PMIC work
  ACPI / PMIC: Move TPS68470 OpRegion driver to drivers/acpi/pmic/
  ACPI / PMIC: Split out Kconfig and Makefile specific for ACPI PMIC

* acpi-dptf:
  ACPI: DPTF: Add PCH FIVR participant driver

* acpi-soc:
  ACPI: APD: Clean up header file include statements
  ACPI: APD: Remove unnecessary APD_ADDR() macro stub
  ACPI: APD: Remove ACPI_MODULE_NAME()
  ACPI: APD: Remove flags from struct apd_device_desc
  ACPI: APD: Add kerneldoc for properties in struct apd_device_desc
2020-10-13 14:43:16 +02:00
Rafael J. Wysocki
fe5975b1b8 Merge branches 'pm-cpuidle' and 'pm-devfreq'
* pm-cpuidle:
  cpuidle: record state entry rejection statistics
  cpuidle: psci: Allow PM domain to be initialized even if no OSI mode
  firmware: psci: Extend psci_set_osi_mode() to allow reset to PC mode
  ACPI: processor: Print more information when acpi_processor_evaluate_cst() fails
  cpuidle: tegra: Correctly handle result of arm_cpuidle_simple_enter()

* pm-devfreq:
  PM / devfreq: tegra30: Improve initial hardware resetting
  PM / devfreq: event: Change prototype of devfreq_event_get_edev_by_phandle function
  PM / devfreq: Change prototype of devfreq_get_devfreq_by_phandle function
  PM / devfreq: Add devfreq_get_devfreq_by_node function
2020-10-13 14:39:52 +02:00
Rafael J. Wysocki
9c2ff6650f Merge branch 'pm-cpufreq'
* pm-cpufreq: (30 commits)
  cpufreq: stats: Fix string format specifier mismatch
  arm: disable frequency invariance for CONFIG_BL_SWITCHER
  cpufreq,arm,arm64: restructure definitions of arch_set_freq_scale()
  cpufreq: stats: Add memory barrier to store_reset()
  cpufreq: schedutil: Simplify sugov_fast_switch()
  cpufreq: Move traces and update to policy->cur to cpufreq core
  cpufreq: stats: Enable stats for fast-switch as well
  cpufreq: stats: Mark few conditionals with unlikely()
  cpufreq: stats: Remove locking
  cpufreq: stats: Defer stats update to cpufreq_stats_record_transition()
  arch_topology, arm, arm64: define arch_scale_freq_invariant()
  arch_topology, cpufreq: constify arch_* cpumasks
  cpufreq: report whether cpufreq supports Frequency Invariance (FI)
  cpufreq: move invariance setter calls in cpufreq core
  arch_topology: validate input frequencies to arch_set_freq_scale()
  cpufreq: qcom: Don't add frequencies without an OPP
  cpufreq: qcom-hw: Add cpufreq support for SM8250 SoC
  cpufreq: qcom-hw: Use of_device_get_match_data for offsets and row size
  cpufreq: qcom-hw: Use devm_platform_ioremap_resource() to simplify code
  dt-bindings: cpufreq: cpufreq-qcom-hw: Document Qcom EPSS compatible
  ...
2020-10-13 14:39:35 +02:00
Kunihiko Hayashi
1ba415a277 dt-bindings: PCI: uniphier-ep: Add iATU register description
In the dt-bindings, "atu" reg-names is required to get the register space
for iATU in Synopsis DWC version 4.80 or later.

Link: https://lore.kernel.org/r/1601444167-11316-3-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-10-13 09:52:49 +01:00
Kunihiko Hayashi
927f56d67f dt-bindings: PCI: uniphier: Add iATU register description
In the dt-bindings, "atu" reg-names is required to get the register space
for iATU in Synopsys DWC version 4.80 or later.

Link: https://lore.kernel.org/r/1601444167-11316-2-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2020-10-13 09:52:49 +01:00
Sudeep Holla
471de2c027 dt-bindings: mailbox: add doorbell support to ARM MHU
The ARM MHU's reference manual states following:

"The MHU drives the signal using a 32-bit register, with all 32 bits
logically ORed together. The MHU provides a set of registers to enable
software to set, clear, and check the status of each of the bits of this
register independently.  The use of 32 bits for each interrupt line
enables software to provide more information about the source of the
interrupt. For example, each bit of the register can be associated with
a type of event that can contribute to raising the interrupt."

This patch thus extends the MHU controller's DT binding to add support
for doorbell mode.

Though the same MHU hardware controller is used in the two modes, A new
compatible string is added here to represent the combination of the MHU
hardware and the firmware sitting on the other side (which expects each
bit to represent a different signal now).

Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Co-developed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-10-12 21:10:34 -05:00
Viresh Kumar
9070f35d25 dt-bindings: mailbox : arm,mhu: Convert to Json-schema
Convert the DT binding over to Json-schema.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-10-12 21:10:34 -05:00
Linus Torvalds
50d228345a As hoped, things calmed down for docs this cycle; fewer changes and almost
no conflicts at all.  This pull includes:
 
  - A reworked and expanded user-mode Linux document
  - Some simplifications and improvements for submitting-patches.rst
  - An emergency fix for (some) problems with Sphinx 3.x
  - Some welcome automarkup improvements to automatically generate
    cross-references to struct definitions and other documents
  - The usual collection of translation updates, typo fixes, etc.
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Merge tag 'docs-5.10' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "As hoped, things calmed down for docs this cycle; fewer changes and
  almost no conflicts at all. This includes:

   - A reworked and expanded user-mode Linux document

   - Some simplifications and improvements for submitting-patches.rst

   - An emergency fix for (some) problems with Sphinx 3.x

   - Some welcome automarkup improvements to automatically generate
     cross-references to struct definitions and other documents

   - The usual collection of translation updates, typo fixes, etc"

* tag 'docs-5.10' of git://git.lwn.net/linux: (81 commits)
  gpiolib: Update indentation in driver.rst for code excerpts
  Documentation/admin-guide: tainted-kernels: Fix typo occured
  Documentation: better locations for sysfs-pci, sysfs-tagging
  docs: programming-languages: refresh blurb on clang support
  Documentation: kvm: fix a typo
  Documentation: Chinese translation of Documentation/arm64/amu.rst
  doc: zh_CN: index files in arm64 subdirectory
  mailmap: add entry for <mstarovoitov@marvell.com>
  doc: seq_file: clarify role of *pos in ->next()
  docs: trace: ring-buffer-design.rst: use the new SPDX tag
  Documentation: kernel-parameters: clarify "module." parameters
  Fix references to nommu-mmap.rst
  docs: rewrite admin-guide/sysctl/abi.rst
  docs: fb: Remove vesafb scrollback boot option
  docs: fb: Remove sstfb scrollback boot option
  docs: fb: Remove matroxfb scrollback boot option
  docs: fb: Remove framebuffer scrollback boot option
  docs: replace the old User Mode Linux HowTo with a new one
  Documentation/admin-guide: blockdev/ramdisk: remove use of "rdev"
  Documentation/admin-guide: README & svga: remove use of "rdev"
  ...
2020-10-12 16:21:29 -07:00
Jakub Kicinski
ccdf7fae3a Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2020-10-12

The main changes are:

1) The BPF verifier improvements to track register allocation pattern, from Alexei and Yonghong.

2) libbpf relocation support for different size load/store, from Andrii.

3) bpf_redirect_peer() helper and support for inner map array with different max_entries, from Daniel.

4) BPF support for per-cpu variables, form Hao.

5) sockmap improvements, from John.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-12 16:16:50 -07:00
Linus Torvalds
e6412f9833 EFI changes for v5.10:
- Preliminary RISC-V enablement - the bulk of it will arrive via the RISCV tree.
 
  - Relax decompressed image placement rules for 32-bit ARM
 
  - Add support for passing MOK certificate table contents via a config table
    rather than a EFI variable.
 
  - Add support for 18 bit DIMM row IDs in the CPER records.
 
  - Work around broken Dell firmware that passes the entire Boot#### variable
    contents as the command line
 
  - Add definition of the EFI_MEMORY_CPU_CRYPTO memory attribute so we can
    identify it in the memory map listings.
 
  - Don't abort the boot on arm64 if the EFI RNG protocol is available but
    returns with an error
 
  - Replace slashes with exclamation marks in efivarfs file names
 
  - Split efi-pstore from the deprecated efivars sysfs code, so we can
    disable the latter on !x86.
 
  - Misc fixes, cleanups and updates.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'efi-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull EFI changes from Ingo Molnar:

 - Preliminary RISC-V enablement - the bulk of it will arrive via the
   RISCV tree.

 - Relax decompressed image placement rules for 32-bit ARM

 - Add support for passing MOK certificate table contents via a config
   table rather than a EFI variable.

 - Add support for 18 bit DIMM row IDs in the CPER records.

 - Work around broken Dell firmware that passes the entire Boot####
   variable contents as the command line

 - Add definition of the EFI_MEMORY_CPU_CRYPTO memory attribute so we
   can identify it in the memory map listings.

 - Don't abort the boot on arm64 if the EFI RNG protocol is available
   but returns with an error

 - Replace slashes with exclamation marks in efivarfs file names

 - Split efi-pstore from the deprecated efivars sysfs code, so we can
   disable the latter on !x86.

 - Misc fixes, cleanups and updates.

* tag 'efi-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
  efi: mokvar: add missing include of asm/early_ioremap.h
  efi: efivars: limit availability to X86 builds
  efi: remove some false dependencies on CONFIG_EFI_VARS
  efi: gsmi: fix false dependency on CONFIG_EFI_VARS
  efi: efivars: un-export efivars_sysfs_init()
  efi: pstore: move workqueue handling out of efivars
  efi: pstore: disentangle from deprecated efivars module
  efi: mokvar-table: fix some issues in new code
  efi/arm64: libstub: Deal gracefully with EFI_RNG_PROTOCOL failure
  efivarfs: Replace invalid slashes with exclamation marks in dentries.
  efi: Delete deprecated parameter comments
  efi/libstub: Fix missing-prototypes in string.c
  efi: Add definition of EFI_MEMORY_CPU_CRYPTO and ability to report it
  cper,edac,efi: Memory Error Record: bank group/address and chip id
  edac,ghes,cper: Add Row Extension to Memory Error Record
  efi/x86: Add a quirk to support command line arguments on Dell EFI firmware
  efi/libstub: Add efi_warn and *_once logging helpers
  integrity: Load certs from the EFI MOK config table
  integrity: Move import of MokListRT certs to a separate routine
  efi: Support for MOK variable config table
  ...
2020-10-12 13:26:49 -07:00
Linus Torvalds
ed016af52e These are the locking updates for v5.10:
- Add deadlock detection for recursive read-locks. The rationale is outlined
    in:
 
      224ec489d3: ("lockdep/Documention: Recursive read lock detection reasoning")
 
    The main deadlock pattern we want to detect is:
 
            TASK A:                 TASK B:
 
            read_lock(X);
                                    write_lock(X);
            read_lock_2(X);
 
  - Add "latch sequence counters" (seqcount_latch_t):
 
       A sequence counter variant where the counter even/odd value is used to
       switch between two copies of protected data. This allows the read path,
       typically NMIs, to safely interrupt the write side critical section.
 
    We utilize this new variant for sched-clock, and to make x86 TSC handling safer.
 
  - Other seqlock cleanups, fixes and enhancements
 
  - KCSAN updates
 
  - LKMM updates
 
  - Misc updates, cleanups and fixes.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:
 "These are the locking updates for v5.10:

   - Add deadlock detection for recursive read-locks.

     The rationale is outlined in commit 224ec489d3 ("lockdep/
     Documention: Recursive read lock detection reasoning")

     The main deadlock pattern we want to detect is:

           TASK A:                 TASK B:

           read_lock(X);
                                   write_lock(X);
           read_lock_2(X);

   - Add "latch sequence counters" (seqcount_latch_t):

     A sequence counter variant where the counter even/odd value is used
     to switch between two copies of protected data. This allows the
     read path, typically NMIs, to safely interrupt the write side
     critical section.

     We utilize this new variant for sched-clock, and to make x86 TSC
     handling safer.

   - Other seqlock cleanups, fixes and enhancements

   - KCSAN updates

   - LKMM updates

   - Misc updates, cleanups and fixes"

* tag 'locking-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (67 commits)
  lockdep: Revert "lockdep: Use raw_cpu_*() for per-cpu variables"
  lockdep: Fix lockdep recursion
  lockdep: Fix usage_traceoverflow
  locking/atomics: Check atomic-arch-fallback.h too
  locking/seqlock: Tweak DEFINE_SEQLOCK() kernel doc
  lockdep: Optimize the memory usage of circular queue
  seqlock: Unbreak lockdep
  seqlock: PREEMPT_RT: Do not starve seqlock_t writers
  seqlock: seqcount_LOCKNAME_t: Introduce PREEMPT_RT support
  seqlock: seqcount_t: Implement all read APIs as statement expressions
  seqlock: Use unique prefix for seqcount_t property accessors
  seqlock: seqcount_LOCKNAME_t: Standardize naming convention
  seqlock: seqcount latch APIs: Only allow seqcount_latch_t
  rbtree_latch: Use seqcount_latch_t
  x86/tsc: Use seqcount_latch_t
  timekeeping: Use seqcount_latch_t
  time/sched_clock: Use seqcount_latch_t
  seqlock: Introduce seqcount_latch_t
  mm/swap: Do not abuse the seqcount_t latching API
  time/sched_clock: Use raw_read_seqcount_latch() during suspend
  ...
2020-10-12 13:06:20 -07:00
Andy Shevchenko
4fb220da0d gpiolib: Update indentation in driver.rst for code excerpts
When TABs are being used to indent the code excerpts inside the bullet
lists some of the tools [vim in particular] fail to recognize it and
continue interpreting the special characters inside the quoted excerpt.

Update indentation in driver.rst for code excerpts to avoid
their special interpretation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20201007143817.76335-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-12 13:15:34 -06:00
Naoki Hayama
7a87724d04 Documentation/admin-guide: tainted-kernels: Fix typo occured
Fix typo.
s/occured/occurred/

Signed-off-by: Naoki Hayama <naoki.hayama@lineo.co.jp>
Link: https://lore.kernel.org/r/20201012082441.5831-1-naoki.hayama@lineo.co.jp
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-12 13:14:07 -06:00
Zhen Lei
0450d1f9a2 dt-bindings: arm: hisilicon: add missing properties into cpuctrl.yaml
Add properties: #address-cells, #size-cells and ranges. Due to the
Hisilicon CPU controller node may contains child nodes, change the value
of "additionalProperties" from "false" to "type: object".

The corresponding examples are also added.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20201012061225.1597-11-thunder.leizhen@huawei.com
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-12 13:48:43 -05:00
Zhen Lei
879baf1177 dt-bindings: arm: hisilicon: add missing properties into sysctrl.yaml
Add properties: #reset-cells, #address-cells, #size-cells and ranges. Due
to the Hisilicon system controller node may contains child nodes, change
the value of "additionalProperties" from "false" to "type: object". The
examples have also been updated.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20201012061225.1597-10-thunder.leizhen@huawei.com
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-12 13:48:31 -05:00
Linus Torvalds
c457cc800e Updates for the interrupt subsystem:
Core:
     - Allow trimming of interrupt hierarchy to support odd hardware setups
       where only a subset of the interrupts requires the full hierarchy.
 
     - Allow the retrigger mechanism to follow a hierarchy to simplify
       driver code.
 
     - Provide a mechanism to force enable wakeup interrrupts on suspend.
 
     - More infrastructure to handle IPIs in the core code
 
  Architectures:
 
     - Convert ARM/ARM64 IPI handling to utilize the interrupt core code.
 
  Drivers:
 
     - The usual pile of new interrupt chips (MStar, Actions Owl, TI PRUSS,
       Designware ICTL)
 
     - ARM(64) IPI related conversions
 
     - Wakeup support for Qualcom PDC
 
     - Prevent hierarchy corruption in the NVIDIA Tegra driver
 
     - The usual small fixes, improvements and cleanups all over the place.
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Merge tag 'irq-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "Updates for the interrupt subsystem:

  Core:
   - Allow trimming of interrupt hierarchy to support odd hardware
     setups where only a subset of the interrupts requires the full
     hierarchy.

   - Allow the retrigger mechanism to follow a hierarchy to simplify
     driver code.

   - Provide a mechanism to force enable wakeup interrrupts on suspend.

   - More infrastructure to handle IPIs in the core code

  Architectures:
   - Convert ARM/ARM64 IPI handling to utilize the interrupt core code.

  Drivers:
   - The usual pile of new interrupt chips (MStar, Actions Owl, TI
     PRUSS, Designware ICTL)

   - ARM(64) IPI related conversions

   - Wakeup support for Qualcom PDC

   - Prevent hierarchy corruption in the NVIDIA Tegra driver

   - The usual small fixes, improvements and cleanups all over the
     place"

* tag 'irq-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits)
  dt-bindings: interrupt-controller: Add MStar interrupt controller
  irqchip/irq-mst: Add MStar interrupt controller support
  soc/tegra: pmc: Don't create fake interrupt hierarchy levels
  soc/tegra: pmc: Allow optional irq parent callbacks
  gpio: tegra186: Allow optional irq parent callbacks
  genirq/irqdomain: Allow partial trimming of irq_data hierarchy
  irqchip/qcom-pdc: Reset PDC interrupts during init
  irqchip/qcom-pdc: Set IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag
  pinctrl: qcom: Set IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag
  genirq/PM: Introduce IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag
  pinctrl: qcom: Use return value from irq_set_wake() call
  pinctrl: qcom: Set IRQCHIP_SET_TYPE_MASKED and IRQCHIP_MASK_ON_SUSPEND flags
  ARM: Handle no IPI being registered in show_ipi_list()
  MAINTAINERS: Add entries for Actions Semi Owl SIRQ controller
  irqchip: Add Actions Semi Owl SIRQ controller
  dt-bindings: interrupt-controller: Add Actions SIRQ controller binding
  dt-bindings: dw-apb-ictl: Update binding to describe use as primary interrupt controller
  irqchip/dw-apb-ictl: Add primary interrupt controller support
  irqchip/dw-apb-ictl: Refactor priot to introducing hierarchical irq domains
  genirq: Add stub for set_handle_irq() when !GENERIC_IRQ_MULTI_HANDLER
  ...
2020-10-12 11:34:32 -07:00
Linus Torvalds
f5f59336a9 Updates for timekeeping, timers and related drivers:
Core:
 
   - Early boot support for the NMI safe timekeeper by utilizing
     local_clock() up to the point where timekeeping is initialized. This
     allows printk() to store multiple timestamps in the ringbuffer which is
     useful for coordinating dmesg information across a fleet of machines.
 
   - Provide a multi-timestamp accessor for printk()
 
   - Make timer init more robust by checking for invalid timer flags.
 
   - Comma vs. semicolon fixes
 
  Drivers:
 
   - Support for new platforms in existing drivers (SP804 and Renesas CMT)
 
   - Comma vs. semicolon fixes
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Merge tag 'timers-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timekeeping updates from Thomas Gleixner:
 "Updates for timekeeping, timers and related drivers:

  Core:

   - Early boot support for the NMI safe timekeeper by utilizing
     local_clock() up to the point where timekeeping is initialized.
     This allows printk() to store multiple timestamps in the ringbuffer
     which is useful for coordinating dmesg information across a fleet
     of machines.

   - Provide a multi-timestamp accessor for printk()

   - Make timer init more robust by checking for invalid timer flags.

   - Comma vs semicolon fixes

  Drivers:

   - Support for new platforms in existing drivers (SP804 and Renesas
     CMT)

   - Comma vs semicolon fixes

* tag 'timers-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/armada-370-xp: Use semicolons rather than commas to separate statements
  clocksource/drivers/mps2-timer: Use semicolons rather than commas to separate statements
  timers: Mask invalid flags in do_init_timer()
  clocksource/drivers/sp804: Enable Hisilicon sp804 timer 64bit mode
  clocksource/drivers/sp804: Add support for Hisilicon sp804 timer
  clocksource/drivers/sp804: Support non-standard register offset
  clocksource/drivers/sp804: Prepare for support non-standard register offset
  clocksource/drivers/sp804: Remove a mismatched comment
  clocksource/drivers/sp804: Delete the leading "__" of some functions
  clocksource/drivers/sp804: Remove unused sp804_timer_disable() and timer-sp804.h
  clocksource/drivers/sp804: Cleanup clk_get_sys()
  dt-bindings: timer: renesas,cmt: Document r8a774e1 CMT support
  dt-bindings: timer: renesas,cmt: Document r8a7742 CMT support
  alarmtimer: Convert comma to semicolon
  timekeeping: Provide multi-timestamp accessor to NMI safe timekeeper
  timekeeping: Utilize local_clock() for NMI safe timekeeper during early boot
2020-10-12 11:27:54 -07:00
Krzysztof Kozlowski
a5917fa876 dt-bindings: pwm: imx: document i.MX compatibles
Document all ARMv5, ARMv6 and ARMv7 i.MX compatibles to fix dtbs_check
warnings like:

  arch/arm/boot/dts/imx6dl-colibri-eval-v3.dt.yaml: pwm@2080000: compatible:0:
    'fsl,imx6q-pwm' is not one of ['fsl,imx8mm-pwm', 'fsl,imx8mn-pwm', 'fsl,imx8mp-pwm', 'fsl,imx8mq-pwm']

Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200925212609.23093-1-krzk@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-12 13:10:53 -05:00
Linus Torvalds
64743e652c * Misc cleanups to the resctrl code in preparation for the ARM side, by
James Morse.
 
 * Add support for controlling per-thread memory bandwidth throttling
 delay values on hw which supports it, by Fenghua Yu.
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Merge tag 'x86_cache_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cache resource control updates from Borislav Petkov:

 - Misc cleanups to the resctrl code in preparation for the ARM side
   (James Morse)

 - Add support for controlling per-thread memory bandwidth throttling
   delay values on hw which supports it (Fenghua Yu)

* tag 'x86_cache_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/resctrl: Enable user to view thread or core throttling mode
  x86/resctrl: Enumerate per-thread MBA controls
  cacheinfo: Move resctrl's get_cache_id() to the cacheinfo header file
  x86/resctrl: Add struct rdt_cache::arch_has_{sparse, empty}_bitmaps
  x86/resctrl: Merge AMD/Intel parse_bw() calls
  x86/resctrl: Add struct rdt_membw::arch_needs_linear to explain AMD/Intel MBA difference
  x86/resctrl: Use is_closid_match() in more places
  x86/resctrl: Include pid.h
  x86/resctrl: Use container_of() in delayed_work handlers
  x86/resctrl: Fix stale comment
  x86/resctrl: Remove struct rdt_membw::max_delay
  x86/resctrl: Remove unused struct mbm_state::chunks_bw
2020-10-12 10:53:32 -07:00
Linus Torvalds
a0d445f70c * Allow clearcpuid= to accept multiple bits, by Arvind Sankar.
* Move clearcpuid= parameter handling earlier in the boot, away from the
 FPU init code and to a generic location, by Mike Hommey.
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Merge tag 'x86_fpu_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fpu updates from Borislav Petkov:

 - Allow clearcpuid= to accept multiple bits (Arvind Sankar)

 - Move clearcpuid= parameter handling earlier in the boot, away from
   the FPU init code and to a generic location (Mike Hommey)

* tag 'x86_fpu_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Handle FPU-related and clearcpuid command line arguments earlier
  x86/fpu: Allow multiple bits in clearcpuid= parameter
2020-10-12 10:49:46 -07:00
Linus Torvalds
9e536c8179 * Ratelimit the message about writes to unrecognized MSRs so that they
don't spam the console log, by Chris Down.
 
 * Document how the /proc/cpuinfo machinery works for future reference,
 by Kyung Min Park, Ricardo Neri and Dave Hansen.
 
 * Correct the current NMI's duration calculation, by Libing Zhou.
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Merge tag 'x86_misc_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 fixes fromm Borislav Petkov:

 - Ratelimit the message about writes to unrecognized MSRs so that they
   don't spam the console log (Chris Down)

 - Document how the /proc/cpuinfo machinery works for future reference
   (Kyung Min Park, Ricardo Neri and Dave Hansen)

 - Correct the current NMI's duration calculation (Libing Zhou)

* tag 'x86_misc_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/nmi: Fix nmi_handle() duration miscalculation
  Documentation/x86: Add documentation for /proc/cpuinfo feature flags
  x86/msr: Make source of unrecognised MSR writes unambiguous
  x86/msr: Prevent userspace MSR access from dominating the console
2020-10-12 10:42:23 -07:00