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Commits on Jan 17, 2022

  1. powerpc/mce: Avoid using irq_work_queue() in realmode

    In realmode mce handler we use irq_work_queue() to defer
    the processing of mce events, irq_work_queue() can only
    be called when translation is enabled because it touches
    memory outside RMA, hence we enable translation before
    calling irq_work_queue and disable on return, though it
    is not safe to do in realmode.
    
    To avoid this, program the decrementer and call the event
    processing functions from timer handler.
    
    Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com>
    Ganesh Goudar authored and intel-lab-lkp committed Jan 17, 2022

Commits on Jan 14, 2022

  1. Merge tag 'powerpc-5.17-1' of git://git.kernel.org/pub/scm/linux/kern…

    …el/git/powerpc/linux
    
    Pull powerpc updates from Michael Ellerman:
    
     - Optimise radix KVM guest entry/exit by 2x on Power9/Power10.
    
     - Allow firmware to tell us whether to disable the entry and uaccess
       flushes on Power10 or later CPUs.
    
     - Add BPF_PROBE_MEM support for 32 and 64-bit BPF jits.
    
     - Several fixes and improvements to our hard lockup watchdog.
    
     - Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on 32-bit.
    
     - Allow building the 64-bit Book3S kernel without hash MMU support, ie.
       Radix only.
    
     - Add KUAP (SMAP) support for 40x, 44x, 8xx, Book3E (64-bit).
    
     - Add new encodings for perf_mem_data_src.mem_hops field, and use them
       on Power10.
    
     - A series of small performance improvements to 64-bit interrupt entry.
    
     - Several commits fixing issues when building with the clang integrated
       assembler.
    
     - Many other small features and fixes.
    
    Thanks to Alan Modra, Alexey Kardashevskiy, Ammar Faizi, Anders Roxell,
    Arnd Bergmann, Athira Rajeev, Cédric Le Goater, Christophe JAILLET,
    Christophe Leroy, Christoph Hellwig, Daniel Axtens, David Yang, Erhard
    Furtner, Fabiano Rosas, Greg Kroah-Hartman, Guo Ren, Hari Bathini, Jason
    Wang, Joel Stanley, Julia Lawall, Kajol Jain, Kees Cook, Laurent Dufour,
    Madhavan Srinivasan, Mark Brown, Minghao Chi, Nageswara R Sastry, Naresh
    Kamboju, Nathan Chancellor, Nathan Lynch, Nicholas Piggin, Nick Child,
    Oliver O'Halloran, Peiwei Hu, Randy Dunlap, Ravi Bangoria, Rob Herring,
    Russell Currey, Sachin Sant, Sean Christopherson, Segher Boessenkool,
    Thadeu Lima de Souza Cascardo, Tyrel Datwyler, Xiang wangx, and Yang
    Guang.
    
    * tag 'powerpc-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (240 commits)
      powerpc/xmon: Dump XIVE information for online-only processors.
      powerpc/opal: use default_groups in kobj_type
      powerpc/cacheinfo: use default_groups in kobj_type
      powerpc/sched: Remove unused TASK_SIZE_OF
      powerpc/xive: Add missing null check after calling kmalloc
      powerpc/floppy: Remove usage of the deprecated "pci-dma-compat.h" API
      selftests/powerpc: Add a test of sigreturning to an unaligned address
      powerpc/64s: Use EMIT_WARN_ENTRY for SRR debug warnings
      powerpc/64s: Mask NIP before checking against SRR0
      powerpc/perf: Fix spelling of "its"
      powerpc/32: Fix boot failure with GCC latent entropy plugin
      powerpc/code-patching: Replace patch_instruction() by ppc_inst_write() in selftests
      powerpc/code-patching: Move code patching selftests in its own file
      powerpc/code-patching: Move instr_is_branch_{i/b}form() in code-patching.h
      powerpc/code-patching: Move patch_exception() outside code-patching.c
      powerpc/code-patching: Use test_trampoline for prefixed patch test
      powerpc/code-patching: Fix patch_branch() return on out-of-range failure
      powerpc/code-patching: Reorganise do_patch_instruction() to ease error handling
      powerpc/code-patching: Fix unmap_patch_area() error handling
      powerpc/code-patching: Fix error handling in do_patch_instruction()
      ...
    torvalds committed Jan 14, 2022
  2. Merge tag 'mips_5.17' of git://git.kernel.org/pub/scm/linux/kernel/gi…

    …t/mips/linux
    
    Pull MIPS updates from Thomas Bogendoerfer:
    
     - add support for more BCM47XX based devices
    
     - add MIPS support for brcmstb PCIe controller
    
     - add Loongson 2K1000 reset driver
    
     - remove board support for rbtx4938/rbtx4939
    
     - remove support for TX4939 SoCs
    
     - fixes and cleanups
    
    * tag 'mips_5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (59 commits)
      MIPS: ath79: drop _machine_restart again
      PCI: brcmstb: Augment driver for MIPs SOCs
      MIPS: bmips: Remove obsolete DMA mapping support
      MIPS: bmips: Add support PCIe controller device nodes
      dt-bindings: PCI: Add compatible string for Brcmstb 74[23]5 MIPs SOCs
      MIPS: compressed: Fix build with ZSTD compression
      MIPS: BCM47XX: Add support for Netgear WN2500RP v1 & v2
      MIPS: BCM47XX: Add support for Netgear R6300 v1
      MIPS: BCM47XX: Add LEDs and buttons for Asus RTN-10U
      MIPS: BCM47XX: Add board entry for Linksys WRT320N v1
      MIPS: BCM47XX: Define Linksys WRT310N V2 buttons
      MIPS: Remove duplicated include in local.h
      MIPS: retire "asm/llsc.h"
      MIPS: rework local_t operation on MIPS64
      MIPS: fix local_{add,sub}_return on MIPS64
      mips/pci: remove redundant ret variable
      MIPS: Loongson64: Add missing of_node_put() in ls2k_reset_init()
      MIPS: new Kconfig option ZBOOT_LOAD_ADDRESS
      MIPS: enable both vmlinux.gz.itb and vmlinuz for generic
      MIPS: signal: Return immediately if call fails
      ...
    torvalds committed Jan 14, 2022
  3. Merge tag 'sound-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kern…

    …el/git/tiwai/sound
    
    Pull sound updates from Takashi Iwai:
     "It's a relatively calm development cycle, but still lots of updates in
      the driver side like Intel SOF. Below are some highlights:
    
      ALSA / ASoC core:
       - A new kselftest for ALSA control API
       - PCM NO_REWINDS support
       - Potential race fixes around control removals
       - Unify x86 SG-buffer memory allocation code
       - Cleanups and race fixes for ASoC DPCM locking
    
      ASoC:
       - Refinements and cleanups around the delay() APIs
       - Wider use of dev_err_probe().
       - Continuing cleanups and improvements to the SOF code
       - Support for pin switches in simple-card derived cards
       - Support for AMD Renoir ACP, Asahi Kasei Microdevices AKM4375, Intel
         systems using NAU8825 and MAX98390, Mediatek MT8915, nVidia Tegra20
         S/PDIF, Qualcomm systems using ALC5682I-VS and Texas Instruments
         TLV320ADC3xxx
    
      HD-audio / USB-audio:
       - Fix deadlock at HD-audio codec unbinding
       - Fixes for Tegra194 HD-audio, new HDA support for CS35L41 codec
       - Quirks for Lenovo and HP machines, Gigabyte mobo, Bose device
    
      Misc:
       - Fix virmidi drain behavior
    
      Note that the merge of CS35L41 codec support is still half-baked, and
      at least one ACPI change is missing. Although this won't hinder the
      kernel build itself, we're going to catch up before RC1"
    
    * tag 'sound-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (415 commits)
      ALSA: hda: intel-dsp-config: reorder the config table
      ALSA: hda: intel-dsp-config: add JasperLake support
      ALSA: hda: cs35l41: fix double free on error in probe()
      ALSA: hda: Fix dependencies of CS35L41 on SPI/I2C buses
      ALSA: hda: Fix dependency on ASoC cs35l41 codec
      ASoC: cs35l41: Add support for hibernate memory retention mode
      ASoC: cs35l41: Update handling of test key registers
      ALSA: intel_hdmi: Check for error num after setting mask
      ASoC: wcd9335: Keep a RX port value for each SLIM RX mux
      ASoC: amd: acp: acp-mach: Change default RT1019 amp dev id
      ALSA: virmidi: Remove duplicated code
      ALSA: seq: virmidi: Add a drain operation
      ASoC: topology: Fix typo
      ASoC: fsl_asrc: refine the check of available clock divider
      ASoC: Intel: bytcr_rt5640: Add support for external GPIO jack-detect
      ASoC: Intel: bytcr_rt5640: Support retrieving the codec IRQ from the AMCR0F28 ACPI dev
      ASoC: rt5640: Add support for boards with an external jack-detect GPIO
      ASoC: rt5640: Allow snd_soc_component_set_jack() to override the codec IRQ
      ASoC: rt5640: Change jack_work to a delayed_work
      ASoC: rt5640: Fix possible NULL pointer deref on resume
      ...
    torvalds committed Jan 14, 2022
  4. Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/gi…

    …t/jejb/scsi
    
    Pull SCSI updates from James Bottomley:
     "This series consists of the usual driver updates (ufs, pm80xx, lpfc,
      mpi3mr, mpt3sas, hisi_sas, libsas) and minor updates and bug fixes.
    
      The most impactful change is likely the switch from GFP_DMA to
      GFP_KERNEL in a bunch of drivers, but even that shouldn't affect too
      many people"
    
    * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (121 commits)
      scsi: mpi3mr: Bump driver version to 8.0.0.61.0
      scsi: mpi3mr: Fixes around reply request queues
      scsi: mpi3mr: Enhanced Task Management Support Reply handling
      scsi: mpi3mr: Use TM response codes from MPI3 headers
      scsi: mpi3mr: Add io_uring interface support in I/O-polled mode
      scsi: mpi3mr: Print cable mngnt and temp threshold events
      scsi: mpi3mr: Support Prepare for Reset event
      scsi: mpi3mr: Add Event acknowledgment logic
      scsi: mpi3mr: Gracefully handle online FW update operation
      scsi: mpi3mr: Detect async reset that occurred in firmware
      scsi: mpi3mr: Add IOC reinit function
      scsi: mpi3mr: Handle offline FW activation in graceful manner
      scsi: mpi3mr: Code refactor of IOC init - part2
      scsi: mpi3mr: Code refactor of IOC init - part1
      scsi: mpi3mr: Fault IOC when internal command gets timeout
      scsi: mpi3mr: Display IOC firmware package version
      scsi: mpi3mr: Handle unaligned PLL in unmap cmnds
      scsi: mpi3mr: Increase internal cmnds timeout to 60s
      scsi: mpi3mr: Do access status validation before adding devices
      scsi: mpi3mr: Add support for PCIe Managed Switch SES device
      ...
    torvalds committed Jan 14, 2022

Commits on Jan 13, 2022

  1. Merge tag 'mailbox-v5.17' of git://git.linaro.org/landing-teams/worki…

    …ng/fujitsu/integration
    
    Pull mailbox updates from Jassi Brar:
    
     - qcom: misc updates to qcom-ipcc driver
    
     - mpfs: change compatible string
    
     - pcc:
         - fix handling of subtypes
         - avoid uninitialized variable
    
     - mtk:
         - add missing of_node_put
         - enable control_by_sw
         - silent probe-defer prints
         - fix gce_num for mt8192
    
     - zynq: add missing of_node_put
    
     - imx: check for NULL instead of IS_ERR
    
     - appple: switch to generic compatibles
    
     - hi3660: convert comments to kernel-doc notation
    
    * tag 'mailbox-v5.17' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
      dt-bindings: mailbox: Add more protocol and client ID
      mailbox: qcom-ipcc: Support interrupt wake up from suspend
      mailbox: qcom-ipcc: Support more IPCC instance
      mailbox: qcom-ipcc: Dynamic alloc for channel arrangement
      mailbox: change mailbox-mpfs compatible string
      mailbox: pcc: Handle all PCC subtypes correctly in pcc_mbox_irq
      mailbox: pcc: Avoid using the uninitialized variable 'dev'
      mailbox: mtk: add missing of_node_put before return
      mailbox: zynq: add missing of_node_put before return
      mailbox: imx: Fix an IS_ERR() vs NULL bug
      mailbox: hi3660: convert struct comments to kernel-doc notation
      mailbox: add control_by_sw for mt8195
      mailbox: mtk-cmdq: Silent EPROBE_DEFER errors for clks
      mailbox: fix gce_num of mt8192 driver data
      mailbox: apple: Bind to generic compatibles
      dt-bindings: mailbox: apple,mailbox: Add generic and t6000 compatibles
    torvalds committed Jan 13, 2022
  2. Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/gi…

    …t/rdma/rdma
    
    Pull rdma updates from Jason Gunthorpe:
     "Another small cycle. Mostly cleanups and bug fixes, quite a bit
      assisted from bots. There are a few new syzkaller splats that haven't
      been solved yet but they should get into the rcs in a few weeks, I
      think.
    
      Summary:
    
       - Update drivers to use common helpers for GUIDs, pkeys, bitmaps,
         memset_startat, and others
    
       - General code cleanups from bots
    
       - Simplify some of the rxe pool code in preparation for a larger
         rework
    
       - Clean out old stuff from hns, including all support for hip06
         devices
    
       - Fix a bug where GID table entries could be missed if the table had
         holes in it
    
       - Rename paths and sessions in rtrs for better understandability
    
       - Consolidate the roce source port selection code
    
       - NDR speed support in mlx5"
    
    * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (83 commits)
      RDMA/irdma: Remove the redundant return
      RDMA/rxe: Use the standard method to produce udp source port
      RDMA/irdma: Make the source udp port vary
      RDMA/hns: Replace get_udp_sport with rdma_get_udp_sport
      RDMA/core: Calculate UDP source port based on flow label or lqpn/rqpn
      IB/qib: Fix typos
      RDMA/rtrs-clt: Rename rtrs_clt to rtrs_clt_sess
      RDMA/rtrs-srv: Rename rtrs_srv to rtrs_srv_sess
      RDMA/rtrs-clt: Rename rtrs_clt_sess to rtrs_clt_path
      RDMA/rtrs-srv: Rename rtrs_srv_sess to rtrs_srv_path
      RDMA/rtrs: Rename rtrs_sess to rtrs_path
      RDMA/hns: Modify the hop num of HIP09 EQ to 1
      IB/iser: Align coding style across driver
      IB/iser: Remove un-needed casting to/from void pointer
      IB/iser: Don't suppress send completions
      IB/iser: Rename ib_ret local variable
      IB/iser: Fix RNR errors
      IB/iser: Remove deprecated pi_guard module param
      IB/mlx5: Expose NDR speed through MAD
      RDMA/cxgb4: Set queue pair state when being queried
      ...
    torvalds committed Jan 13, 2022
  3. Merge tag 'v5.16' into rdma.git for-next

    To resolve minor conflict in:
            drivers/infiniband/hw/mlx5/mlx5_ib.h
    
    By merging both hunks.
    
    Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
    jgunthorpe committed Jan 13, 2022
  4. Merge tag 'irq-msi-2022-01-13' of git://git.kernel.org/pub/scm/linux/…

    …kernel/git/tip/tip
    
    Pull MSI irq updates from Thomas Gleixner:
     "Rework of the MSI interrupt infrastructure.
    
      This is a treewide cleanup and consolidation of MSI interrupt handling
      in preparation for further changes in this area which are necessary
      to:
    
       - address existing shortcomings in the VFIO area
    
       - support the upcoming Interrupt Message Store functionality which
         decouples the message store from the PCI config/MMIO space"
    
    * tag 'irq-msi-2022-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (94 commits)
      genirq/msi: Populate sysfs entry only once
      PCI/MSI: Unbreak pci_irq_get_affinity()
      genirq/msi: Convert storage to xarray
      genirq/msi: Simplify sysfs handling
      genirq/msi: Add abuse prevention comment to msi header
      genirq/msi: Mop up old interfaces
      genirq/msi: Convert to new functions
      genirq/msi: Make interrupt allocation less convoluted
      platform-msi: Simplify platform device MSI code
      platform-msi: Let core code handle MSI descriptors
      bus: fsl-mc-msi: Simplify MSI descriptor handling
      soc: ti: ti_sci_inta_msi: Remove ti_sci_inta_msi_domain_free_irqs()
      soc: ti: ti_sci_inta_msi: Rework MSI descriptor allocation
      NTB/msi: Convert to msi_on_each_desc()
      PCI: hv: Rework MSI handling
      powerpc/mpic_u3msi: Use msi_for_each-desc()
      powerpc/fsl_msi: Use msi_for_each_desc()
      powerpc/pasemi/msi: Convert to msi_on_each_dec()
      powerpc/cell/axon_msi: Convert to msi_on_each_desc()
      powerpc/4xx/hsta: Rework MSI handling
      ...
    torvalds committed Jan 13, 2022
  5. Merge tag 'timers-core-2022-01-13' of git://git.kernel.org/pub/scm/li…

    …nux/kernel/git/tip/tip
    
    Pull timer updates from Thomas Gleixner:
     "Updates for the time(r) subsystem:
    
      Core:
    
       - Make the clocksource watchdog more robust by better validation
         checks of the measurement.
    
      Drivers:
    
       - New drivers for MStar and SSD20xd SOCs
    
       - The usual cleanups and improvements all over the place"
    
    * tag 'timers-core-2022-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      dt-bindings: timer: Add Mstar MSC313e timer devicetree bindings documentation
      clocksource/drivers/msc313e: Add support for ssd20xd-based platforms
      clocksource/drivers: Add MStar MSC313e timer support
      clocksource/drivers/pistachio: Fix -Wunused-but-set-variable warning
      clocksource/drivers/timer-imx-sysctr: Set cpumask to cpu_possible_mask
      clocksource/drivers/imx-sysctr: Mark two variable with __ro_after_init
      clocksource/drivers/renesas,ostm: Make RENESAS_OSTM symbol visible
      clocksource/drivers/renesas-ostm: Add RZ/G2L OSTM support
      dt-bindings: timer: renesas: ostm: Document Renesas RZ/G2L OSTM
      clocksource/drivers/exynos_mct: Fix silly typo resulting in checkpatch warning
      clocksource: Reduce the default clocksource_watchdog() retries to 2
      clocksource: Avoid accidental unstable marking of clocksources
      dt-bindings: timer: tpm-timer: Add imx8ulp compatible string
      reset: Add of_reset_control_get_optional_exclusive()
      clocksource/drivers/exynos_mct: Refactor resources allocation
      dt-bindings: timer: remove rockchip,rk3066-timer compatible string from rockchip,rk-timer.yaml
      dt-bindings: timer: cadence_ttc: Add power-domains
    torvalds committed Jan 13, 2022
  6. Merge tag 'irq-core-2022-01-13' of git://git.kernel.org/pub/scm/linux…

    …/kernel/git/tip/tip
    
    Pull irq updates from Thomas Gleixner:
     "Updates for the interrupt subsystem:
    
      Core:
    
       - Provide a new interface for affinity hints to provide a separation
         between hint and actual affinity change which has become a hidden
         property of the current interface
    
       - Fix up the in tree usage of the affinity hint interfaces
    
      Drivers:
    
       - No new irqchip drivers!
    
       - Fix GICv3 redistributor table reservation with RT across kexec
    
       - Fix GICv4.1 redistributor view of the VPE table across kexec
    
       - Add support for extra interrupts on spear-shirq
    
       - Make obtaining some interrupts optional for the Renesas drivers
    
       - Various cleanups and bug fixes"
    
    * tag 'irq-core-2022-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
      irqchip/renesas-intc-irqpin: Use platform_get_irq_optional() to get the interrupt
      irqchip/renesas-irqc: Use platform_get_irq_optional() to get the interrupt
      irqchip/gic-v4: Disable redistributors' view of the VPE table at boot time
      irqchip/ingenic-tcu: Use correctly sized arguments for bit field
      irqchip/gic-v2m: Add const to of_device_id
      irqchip/imx-gpcv2: Mark imx_gpcv2_instance with __ro_after_init
      irqchip/spear-shirq: Add support for IRQ 0..6
      irqchip/gic-v3-its: Limit memreserve cpuhp state lifetime
      irqchip/gic-v3-its: Postpone LPI pending table freeing and memreserve
      irqchip/gic-v3-its: Give the percpu rdist struct its own flags field
      net/mlx4: Use irq_update_affinity_hint()
      net/mlx5: Use irq_set_affinity_and_hint()
      hinic: Use irq_set_affinity_and_hint()
      scsi: lpfc: Use irq_set_affinity()
      mailbox: Use irq_update_affinity_hint()
      ixgbe: Use irq_update_affinity_hint()
      be2net: Use irq_update_affinity_hint()
      enic: Use irq_update_affinity_hint()
      RDMA/irdma: Use irq_update_affinity_hint()
      scsi: mpt3sas: Use irq_set_affinity_and_hint()
      ...
    torvalds committed Jan 13, 2022
  7. ALSA: hda: intel-dsp-config: reorder the config table

    Entries without dmi_table nor codec_hid field need to be placed after
    entries with these two fields or they will be always selected.
    
    Signed-off-by: Brent Lu <brent.lu@intel.com>
    Link: https://lore.kernel.org/r/20220113105220.1114694-3-brent.lu@intel.com
    Signed-off-by: Takashi Iwai <tiwai@suse.de>
    brentlu authored and tiwai committed Jan 13, 2022
  8. ALSA: hda: intel-dsp-config: add JasperLake support

    Add rules to select SOF driver for Jasper Lake systems if digital
    microphone is present or the system is a Chromebook.
    
    Signed-off-by: Brent Lu <brent.lu@intel.com>
    Link: https://lore.kernel.org/r/20220113105220.1114694-2-brent.lu@intel.com
    Signed-off-by: Takashi Iwai <tiwai@suse.de>
    brentlu authored and tiwai committed Jan 13, 2022
  9. Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kerne…

    …l/git/clk/linux
    
    Pull clk updates from Stephen Boyd:
     "We have a couple patches in the framework core this time around but
      they're mostly minor cleanups and some debugfs stuff. The real work
      that's in here is the typical pile of clk driver updates and new SoC
      support.
    
      Per usual (or maybe just recent trends), Qualcomm gains a handful of
      SoC drivers additions and has the largest diffstat. After that there
      are quite a few updates to the Allwinner (sunxi) drivers to support
      modular drivers and Renesas is heavily updated to add more support for
      various clks.
    
      Overall it looks pretty normal.
    
      New Drivers:
       - Add MDMA and BDMA clks to Ingenic JZ4760 and JZ4770
       - MediaTek mt7986 SoC basic support
       - Clock and reset driver for Toshiba Visconti SoCs
       - Initial clock driver for the Exynos7885 SoC (Samsung Galaxy A8)
       - Allwinner D1 clks
       - Lan966x Generic Clock Controller driver and associated DT bindings
       - Qualcomm SDX65, SM8450, and MSM8976 GCC clks
       - Qualcomm SDX65 and SM8450 RPMh clks
    
      Updates:
       - Set suppress_bind_attrs to true for i.MX8ULP driver
       - Switch from do_div to div64_ul for throughout all i.MX drivers
       - Fix imx8mn_clko1_sels for i.MX8MN
       - Remove unused IPG_AUDIO_ROOT from i.MX8MP
       - Switch parent for audio_root_clk to audio ahb in i.MX8MP driver
       - Removal of all remaining uses of __clk_lookup() in
         drivers/clk/samsung
       - Refactoring of the CPU clocks registration to use common interface
       - An update of the Exynos850 driver (support for more clock domains)
         required by the E850-96 development board
       - Prep for runtime PM and generic power domains on Tegra
       - Support modular Allwinner clk drivers via platform bus
       - Lan966x clock driver extended to support clock gating
       - Add serial (SCI1), watchdog (WDT), timer (OSTM), SPI (RSPI), and
         thermal (TSU) clocks and resets on Renesas RZ/G2L
       - Rework SDHI clock handling in the Renesas R-Car Gen3 and RZ/G2
         clock drivers, and in the Renesas SDHI driver
       - Make the Cortex-A55 (I) clock on Renesas RZ/G2L programmable
       - Document support for the new Renesas R-Car S4-8 (R8A779F0) SoC
       - Add support for the new Renesas R-Car S4-8 (R8A779F0) SoC
       - Add GPU clock and resets on Renesas RZ/G2L
       - Add clk-provider.h to various Qualcomm clk drivers
       - devm version of clk_hw_register_gate()
       - kerneldoc fixes in a couple drivers"
    
    * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (131 commits)
      clk: visconti: Remove pointless NULL check in visconti_pll_add_lookup()
      clk: mediatek: add mt7986 clock support
      clk: mediatek: add mt7986 clock IDs
      dt-bindings: clock: mediatek: document clk bindings for mediatek mt7986 SoC
      clk: mediatek: clk-gate: Use regmap_{set/clear}_bits helpers
      clk: mediatek: clk-gate: Shrink by adding clockgating bit check helper
      clk: x86: Fix clk_gate_flags for RV_CLK_GATE
      clk: x86: Use dynamic con_id string during clk registration
      ACPI: APD: Add a fmw property clk-name
      drivers: acpi: acpi_apd: Remove unused device property "is-rv"
      x86: clk: clk-fch: Add support for newer family of AMD's SOC
      clk: ingenic: Add MDMA and BDMA clocks
      dt-bindings: clk/ingenic: Add MDMA and BDMA clocks
      clk: bm1880: remove kfrees on static allocations
      clk: Drop unused COMMON_CLK_STM32MP157_SCMI config
      clk: st: clkgen-mux: search reg within node or parent
      clk: st: clkgen-fsyn: search reg within node or parent
      clk: Enable/Disable runtime PM for clk_summary
      MAINTAINERS: Add entries for Toshiba Visconti PLL and clock controller
      clk: visconti: Add support common clock driver and reset driver
      ...
    torvalds committed Jan 13, 2022
  10. Merge tag 'leds-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kerne…

    …l/git/pavel/linux-leds
    
    Pull LED updates from Pavel Machek:
     "Nothing major is happening here"
    
    * tag 'leds-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
      leds: lp55xx: initialise output direction from dts
      ARM: dts: omap3-n900: Fix lp5523 for multi color
      leds: ktd2692: Drop calling dev_of_node() in ktd2692_parse_dt
      leds: lgm-sso: Get rid of duplicate of_node assignment
      leds: tca6507: Get rid of duplicate of_node assignment
      leds: leds-fsg: Drop FSG3 LED driver
      leds: lp50xx: remove unused variable
      dt-bindings: leds: Replace moonlight with indicator in mt6360 example
      leds: led-core: Update fwnode with device_set_node
      leds: tca6507: use swap() to make code cleaner
      leds: Add mt6360 driver
      dt-bindings: leds: Add bindings for MT6360 LED
    torvalds committed Jan 13, 2022
  11. Merge tag 'devicetree-for-5.17' of git://git.kernel.org/pub/scm/linux…

    …/kernel/git/robh/linux
    
    Pull devicetree updates from Rob Herring:
     "Bindings:
    
       - DT schema conversions for Samsung clocks, RNG bindings, Qcom
         Command DB and rmtfs, gpio-restart, i2c-mux-gpio, i2c-mux-pinctl,
         Tegra I2C and BPMP, pwm-vibrator, Arm DSU, and Cadence macb
    
       - DT schema conversions for Broadcom platforms: interrupt
         controllers, STB GPIO, STB waketimer, STB reset, iProc MDIO mux,
         iProc PCIe, Cygnus PCIe PHY, PWM, USB BDC, BCM6328 LEDs, TMON,
         SYSTEMPORT, AMAC, Northstar 2 PCIe PHY, GENET, moca PHY, GISB
         arbiter, and SATA
    
       - Add binding schemas for Tegra210 EMC table, TI DC-DC converters,
    
       - Clean-ups of MDIO bus schemas to fix 'unevaluatedProperties' issues
    
       - More fixes due to 'unevaluatedProperties' enabling
    
       - Data type fixes and clean-ups of binding examples found in
         preparation to move to validating DTB files directly (instead of
         intermediate YAML representation.
    
       - Vendor prefixes for T-Head Semiconductor, OnePlus, and Sunplus
    
       - Add various new compatible strings
    
      DT core:
    
       - Silence a warning for overlapping reserved memory regions
    
       - Reimplement unittest overlay tracking
    
       - Fix stack frame size warning in unittest
    
       - Clean-ups of early FDT scanning functions
    
       - Fix handling of "linux,usable-memory-range" on EFI booted systems
    
       - Add support for 'fail' status on CPU nodes
    
       - Improve error message in of_phandle_iterator_next()
    
       - kbuild: Disable duplicate unit-address warnings for disabled nodes"
    
    * tag 'devicetree-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (114 commits)
      dt-bindings: net: mdio: Drop resets/reset-names child properties
      dt-bindings: clock: samsung: convert S5Pv210 to dtschema
      dt-bindings: clock: samsung: convert Exynos5410 to dtschema
      dt-bindings: clock: samsung: convert Exynos5260 to dtschema
      dt-bindings: clock: samsung: extend Exynos7 bindings with UFS
      dt-bindings: clock: samsung: convert Exynos7 to dtschema
      dt-bindings: clock: samsung: convert Exynos5433 to dtschema
      dt-bindings: i2c: maxim,max96712: Add bindings for Maxim Integrated MAX96712
      dt-bindings: iio: adi,ltc2983: Fix 64-bit property sizes
      dt-bindings: power: maxim,max17040: Fix incorrect type for 'maxim,rcomp'
      dt-bindings: interrupt-controller: arm,gic-v3: Fix 'interrupts' cell size in example
      dt-bindings: iio/magnetometer: yamaha,yas530: Fix invalid 'interrupts' in example
      dt-bindings: clock: imx5: Drop clock consumer node from example
      dt-bindings: Drop required 'interrupt-parent'
      dt-bindings: net: ti,dp83869: Drop value on boolean 'ti,max-output-impedance'
      dt-bindings: net: wireless: mt76: Fix 8-bit property sizes
      dt-bindings: PCI: snps,dw-pcie-ep: Drop conflicting 'max-functions' schema
      dt-bindings: i2c: st,stm32-i2c: Make each example a separate entry
      dt-bindings: net: stm32-dwmac: Make each example a separate entry
      dt-bindings: net: Cleanup MDIO node schemas
      ...
    torvalds committed Jan 13, 2022
  12. Merge tag 'for-linus-5.17-rc1-tag' of git://git.kernel.org/pub/scm/li…

    …nux/kernel/git/xen/tip
    
    Pull xen updates from Juergen Gross:
    
     - a fix for the Xen gntdev driver
    
     - a fix for running as Xen dom0 booted via EFI and the EFI framebuffer
       being located above 4GB
    
     - a series for support of mapping other guest's memory by using zone
       device when running as Xen guest on Arm
    
    * tag 'for-linus-5.17-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
      dt-bindings: xen: Clarify "reg" purpose
      arm/xen: Read extended regions from DT and init Xen resource
      xen/unpopulated-alloc: Add mechanism to use Xen resource
      xen/balloon: Bring alloc(free)_xenballooned_pages helpers back
      arm/xen: Switch to use gnttab_setup_auto_xlat_frames() for DT
      xen/unpopulated-alloc: Drop check for virt_addr_valid() in fill_list()
      xen/x86: obtain upper 32 bits of video frame buffer address for Dom0
      xen/gntdev: fix unmap notification order
    torvalds committed Jan 13, 2022
  13. Merge tag 'x86_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/li…

    …nux/kernel/git/tip/tip
    
    Pull x86 core updates from Borislav Petkov:
    
     - Get rid of all the .fixup sections because this generates
       misleading/wrong stacktraces and confuse RELIABLE_STACKTRACE and
       LIVEPATCH as the backtrace misses the function which is being fixed
       up.
    
     - Add Straight Line Speculation mitigation support which uses a new
       compiler switch -mharden-sls= which sticks an INT3 after a RET or an
       indirect branch in order to block speculation after them. Reportedly,
       CPUs do speculate behind such insns.
    
     - The usual set of cleanups and improvements
    
    * tag 'x86_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
      x86/entry_32: Fix segment exceptions
      objtool: Remove .fixup handling
      x86: Remove .fixup section
      x86/word-at-a-time: Remove .fixup usage
      x86/usercopy: Remove .fixup usage
      x86/usercopy_32: Simplify __copy_user_intel_nocache()
      x86/sgx: Remove .fixup usage
      x86/checksum_32: Remove .fixup usage
      x86/vmx: Remove .fixup usage
      x86/kvm: Remove .fixup usage
      x86/segment: Remove .fixup usage
      x86/fpu: Remove .fixup usage
      x86/xen: Remove .fixup usage
      x86/uaccess: Remove .fixup usage
      x86/futex: Remove .fixup usage
      x86/msr: Remove .fixup usage
      x86/extable: Extend extable functionality
      x86/entry_32: Remove .fixup usage
      x86/entry_64: Remove .fixup usage
      x86/copy_mc_64: Remove .fixup usage
      ...
    torvalds committed Jan 13, 2022
  14. Merge tag 'perf_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/l…

    …inux/kernel/git/tip/tip
    
    Pull perf updates from Borislav Petkov:
     "Cleanup of the perf/kvm interaction."
    
    * tag 'perf_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      perf: Drop guest callback (un)register stubs
      KVM: arm64: Drop perf.c and fold its tiny bits of code into arm.c
      KVM: arm64: Hide kvm_arm_pmu_available behind CONFIG_HW_PERF_EVENTS=y
      KVM: arm64: Convert to the generic perf callbacks
      KVM: x86: Move Intel Processor Trace interrupt handler to vmx.c
      KVM: Move x86's perf guest info callbacks to generic KVM
      KVM: x86: More precisely identify NMI from guest when handling PMI
      KVM: x86: Drop current_vcpu for kvm_running_vcpu + kvm_arch_vcpu variable
      perf/core: Use static_call to optimize perf_guest_info_callbacks
      perf: Force architectures to opt-in to guest callbacks
      perf: Add wrappers for invoking guest callbacks
      perf/core: Rework guest callbacks to prepare for static_call support
      perf: Drop dead and useless guest "support" from arm, csky, nds32 and riscv
      perf: Stop pretending that perf can handle multiple guest callbacks
      KVM: x86: Register Processor Trace interrupt hook iff PT enabled in guest
      KVM: x86: Register perf callbacks after calling vendor's hardware_setup()
      perf: Protect perf_guest_cbs with RCU
    torvalds committed Jan 13, 2022
  15. Merge tag 'iommu-updates-v5.17' of git://git.kernel.org/pub/scm/linux…

    …/kernel/git/joro/iommu
    
    Pull iommu updates from Joerg Roedel:
    
     - Identity domain support for virtio-iommu
    
     - Move flush queue code into iommu-dma
    
     - Some fixes for AMD IOMMU suspend/resume support when x2apic is used
    
     - Arm SMMU Updates from Will Deacon:
          - Revert evtq and priq back to their former sizes
          - Return early on short-descriptor page-table allocation failure
          - Fix page fault reporting for Adreno GPU on SMMUv2
          - Make SMMUv3 MMU notifier ops 'const'
          - Numerous new compatible strings for Qualcomm SMMUv2 implementations
    
     - Various smaller fixes and cleanups
    
    * tag 'iommu-updates-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (38 commits)
      iommu/iova: Temporarily include dma-mapping.h from iova.h
      iommu: Move flush queue data into iommu_dma_cookie
      iommu/iova: Move flush queue code to iommu-dma
      iommu/iova: Consolidate flush queue code
      iommu/vt-d: Use put_pages_list
      iommu/amd: Use put_pages_list
      iommu/amd: Simplify pagetable freeing
      iommu/iova: Squash flush_cb abstraction
      iommu/iova: Squash entry_dtor abstraction
      iommu/iova: Fix race between FQ timeout and teardown
      iommu/amd: Fix typo in *glues … together* in comment
      iommu/vt-d: Remove unused dma_to_mm_pfn function
      iommu/vt-d: Drop duplicate check in dma_pte_free_pagetable()
      iommu/vt-d: Use bitmap_zalloc() when applicable
      iommu/amd: Remove useless irq affinity notifier
      iommu/amd: X2apic mode: mask/unmask interrupts on suspend/resume
      iommu/amd: X2apic mode: setup the INTX registers on mask/unmask
      iommu/amd: X2apic mode: re-enable after resume
      iommu/amd: Restore GA log/tail pointer on host resume
      iommu/iova: Move fast alloc size roundup into alloc_iova_fast()
      ...
    torvalds committed Jan 13, 2022

Commits on Jan 12, 2022

  1. Merge tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel…

    …/git/cxl/cxl
    
    Pull CXL (Compute Express Link) updates from Dan Williams:
     "The highlight is initial support for CXL memory hotplug. The static
      NUMA node (ACPI SRAT Physical Address to Proximity Domain) information
      known to platform firmware is extended to support the potential
      performance-class / memory-target nodes dynamically created from
      available CXL memory device capacity.
    
      New unit test infrastructure is added for validating health
      information payloads.
    
      Fixes to module reload stress and stack usage from exposure in -next
      are included. A symbol rename and some other miscellaneous fixups are
      included as well.
    
      Summary:
    
       - Rework ACPI sub-table infrastructure to optionally be used outside
         of __init scenarios and use it for CEDT.CFMWS sub-table parsing.
    
       - Add support for extending num_possible_nodes by the potential
         hotplug CXL memory ranges
    
       - Extend tools/testing/cxl with mock memory device health information
    
       - Fix a module-reload workqueue race
    
       - Fix excessive stack-frame usage
    
       - Rename the driver context data structure from "cxl_mem" since that
         name collides with a proposed driver name
    
       - Use EXPORT_SYMBOL_NS_GPL instead of -DDEFAULT_SYMBOL_NAMESPACE at
         build time"
    
    * tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
      cxl/core: Remove cxld_const_init in cxl_decoder_alloc()
      cxl/pmem: Fix module reload vs workqueue state
      ACPI: NUMA: Add a node and memblk for each CFMWS not in SRAT
      cxl/test: Mock acpi_table_parse_cedt()
      cxl/acpi: Convert CFMWS parsing to ACPI sub-table helpers
      ACPI: Add a context argument for table parsing handlers
      ACPI: Teach ACPI table parsing about the CEDT header format
      ACPI: Keep sub-table parsing infrastructure available for modules
      tools/testing/cxl: add mock output for the GET_HEALTH_INFO command
      cxl/memdev: Remove unused cxlmd field
      cxl/core: Convert to EXPORT_SYMBOL_NS_GPL
      cxl/memdev: Change cxl_mem to a more descriptive name
      cxl/mbox: Remove bad comment
      cxl/pmem: Fix reference counting for delayed work
    torvalds committed Jan 12, 2022
  2. Merge tag 'libnvdimm-for-5.17' of git://git.kernel.org/pub/scm/linux/…

    …kernel/git/nvdimm/nvdimm
    
    Pull dax and libnvdimm updates from Dan Williams:
     "The bulk of this is a rework of the dax_operations API after
      discovering the obstacles it posed to the work-in-progress DAX+reflink
      support for XFS and other copy-on-write filesystem mechanics.
    
      Primarily the need to plumb a block_device through the API to handle
      partition offsets was a sticking point and Christoph untangled that
      dependency in addition to other cleanups to make landing the
      DAX+reflink support easier.
    
      The DAX_PMEM_COMPAT option has been around for 4 years and not only
      are distributions shipping userspace that understand the current
      configuration API, but some are not even bothering to turn this option
      on anymore, so it seems a good time to remove it per the deprecation
      schedule. Recall that this was added after the device-dax subsystem
      moved from /sys/class/dax to /sys/bus/dax for its sysfs organization.
      All recent functionality depends on /sys/bus/dax.
    
      Some other miscellaneous cleanups and reflink prep patches are
      included as well.
    
      Summary:
    
       - Simplify the dax_operations API:
    
          - Eliminate bdev_dax_pgoff() in favor of the filesystem
            maintaining and applying a partition offset to all its DAX iomap
            operations.
    
          - Remove wrappers and device-mapper stacked callbacks for
            ->copy_from_iter() and ->copy_to_iter() in favor of moving
            block_device relative offset responsibility to the
            dax_direct_access() caller.
    
          - Remove the need for an @bdev in filesystem-DAX infrastructure
    
          - Remove unused uio helpers copy_from_iter_flushcache() and
            copy_mc_to_iter() as only the non-check_copy_size() versions are
            used for DAX.
    
       - Prepare XFS for the pending (next merge window) DAX+reflink support
    
       - Remove deprecated DEV_DAX_PMEM_COMPAT support
    
       - Cleanup a straggling misuse of the GUID api"
    
    * tag 'libnvdimm-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (38 commits)
      iomap: Fix error handling in iomap_zero_iter()
      ACPI: NFIT: Import GUID before use
      dax: remove the copy_from_iter and copy_to_iter methods
      dax: remove the DAXDEV_F_SYNC flag
      dax: simplify dax_synchronous and set_dax_synchronous
      uio: remove copy_from_iter_flushcache() and copy_mc_to_iter()
      iomap: turn the byte variable in iomap_zero_iter into a ssize_t
      memremap: remove support for external pgmap refcounts
      fsdax: don't require CONFIG_BLOCK
      iomap: build the block based code conditionally
      dax: fix up some of the block device related ifdefs
      fsdax: shift partition offset handling into the file systems
      dax: return the partition offset from fs_dax_get_by_bdev
      iomap: add a IOMAP_DAX flag
      xfs: pass the mapping flags to xfs_bmbt_to_iomap
      xfs: use xfs_direct_write_iomap_ops for DAX zeroing
      xfs: move dax device handling into xfs_{alloc,free}_buftarg
      ext4: cleanup the dax handling in ext4_fill_super
      ext2: cleanup the dax handling in ext2_fill_super
      fsdax: decouple zeroing from the iomap buffered I/O code
      ...
    torvalds committed Jan 12, 2022
  3. Merge tag 'fscache-rewrite-20220111' of git://git.kernel.org/pub/scm/…

    …linux/kernel/git/dhowells/linux-fs
    
    Pull fscache rewrite from David Howells:
     "This is a set of patches that rewrites the fscache driver and the
      cachefiles driver, significantly simplifying the code compared to
      what's upstream, removing the complex operation scheduling and object
      state machine in favour of something much smaller and simpler.
    
      The series is structured such that the first few patches disable
      fscache use by the network filesystems using it, remove the cachefiles
      driver entirely and as much of the fscache driver as can be got away
      with without causing build failures in the network filesystems.
    
      The patches after that recreate fscache and then cachefiles,
      attempting to add the pieces in a logical order. Finally, the
      filesystems are reenabled and then the very last patch changes the
      documentation.
    
      [!] Note: I have dropped the cifs patch for the moment, leaving local
          caching in cifs disabled. I've been having trouble getting that
          working. I think I have it done, but it needs more testing (there
          seem to be some test failures occurring with v5.16 also from
          xfstests), so I propose deferring that patch to the end of the
          merge window.
    
      WHY REWRITE?
      ============
    
      Fscache's operation scheduling API was intended to handle sequencing
      of cache operations, which were all required (where possible) to run
      asynchronously in parallel with the operations being done by the
      network filesystem, whilst allowing the cache to be brought online and
      offline and to interrupt service for invalidation.
    
      With the advent of the tmpfile capacity in the VFS, however, an
      opportunity arises to do invalidation much more simply, without having
      to wait for I/O that's actually in progress: Cachefiles can simply
      create a tmpfile, cut over the file pointer for the backing object
      attached to a cookie and abandon the in-progress I/O, dismissing it
      upon completion.
    
      Future work here would involve using Omar Sandoval's vfs_link() with
      AT_LINK_REPLACE[1] to allow an extant file to be displaced by a new
      hard link from a tmpfile as currently I have to unlink the old file
      first.
    
      These patches can also simplify the object state handling as I/O
      operations to the cache don't all have to be brought to a stop in
      order to invalidate a file. To that end, and with an eye on to writing
      a new backing cache model in the future, I've taken the opportunity to
      simplify the indexing structure.
    
      I've separated the index cookie concept from the file cookie concept
      by C type now. The former is now called a "volume cookie" (struct
      fscache_volume) and there is a container of file cookies. There are
      then just the two levels. All the index cookie levels are collapsed
      into a single volume cookie, and this has a single printable string as
      a key. For instance, an AFS volume would have a key of something like
      "afs,example.com,1000555", combining the filesystem name, cell name
      and volume ID. This is freeform, but must not have '/' chars in it.
    
      I've also eliminated all pointers back from fscache into the network
      filesystem. This required the duplication of a little bit of data in
      the cookie (cookie key, coherency data and file size), but it's not
      actually that much. This gets rid of problems with making sure we keep
      netfs data structures around so that the cache can access them.
    
      These patches mean that most of the code that was in the drivers
      before is simply gone and those drivers are now almost entirely new
      code. That being the case, there doesn't seem any particular reason to
      try and maintain bisectability across it. Further, there has to be a
      point in the middle where things are cut over as there's a single
      point everything has to go through (ie. /dev/cachefiles) and it can't
      be in use by two drivers at once.
    
      ISSUES YET OUTSTANDING
      ======================
    
      There are some issues still outstanding, unaddressed by this patchset,
      that will need fixing in future patchsets, but that don't stop this
      series from being usable:
    
      (1) The cachefiles driver needs to stop using the backing filesystem's
          metadata to store information about what parts of the cache are
          populated. This is not reliable with modern extent-based
          filesystems.
    
          Fixing this is deferred to a separate patchset as it involves
          negotiation with the network filesystem and the VM as to how much
          data to download to fulfil a read - which brings me on to (2)...
    
      (2) NFS (and CIFS with the dropped patch) do not take account of how
          the cache would like I/O to be structured to meet its granularity
          requirements. Previously, the cache used page granularity, which
          was fine as the network filesystems also dealt in page
          granularity, and the backing filesystem (ext4, xfs or whatever)
          did whatever it did out of sight. However, we now have folios to
          deal with and the cache will now have to store its own metadata to
          track its contents.
    
          The change I'm looking at making for cachefiles is to store
          content bitmaps in one or more xattrs and making a bit in the map
          correspond to something like a 256KiB block. However, the size of
          an xattr and the fact that they have to be read/updated in one go
          means that I'm looking at covering 1GiB of data per 512-byte map
          and storing each map in an xattr. Cachefiles has the potential to
          grow into a fully fledged filesystem of its very own if I'm not
          careful.
    
          However, I'm also looking at changing things even more radically
          and going to a different model of how the cache is arranged and
          managed - one that's more akin to the way, say, openafs does
          things - which brings me on to (3)...
    
      (3) The way cachefilesd does culling is very inefficient for large
          caches and it would be better to move it into the kernel if I can
          as cachefilesd has to keep asking the kernel if it can cull a
          file. Changing the way the backend works would allow this to be
          addressed.
    
      BITS THAT MAY BE CONTROVERSIAL
      ==============================
    
      There are some bits I've added that may be controversial:
    
      (1) I've provided a flag, S_KERNEL_FILE, that cachefiles uses to check
          if a files is already being used by some other kernel service
          (e.g. a duplicate cachefiles cache in the same directory) and
          reject it if it is. This isn't entirely necessary, but it helps
          prevent accidental data corruption.
    
          I don't want to use S_SWAPFILE as that has other effects, but
          quite possibly swapon() should set S_KERNEL_FILE too.
    
          Note that it doesn't prevent userspace from interfering, though
          perhaps it should. (I have made it prevent a marked directory from
          being rmdir-able).
    
      (2) Cachefiles wants to keep the backing file for a cookie open whilst
          we might need to write to it from network filesystem writeback.
          The problem is that the network filesystem unuses its cookie when
          its file is closed, and so we have nothing pinning the cachefiles
          file open and it will get closed automatically after a short time
          to avoid EMFILE/ENFILE problems.
    
          Reopening the cache file, however, is a problem if this is being
          done due to writeback triggered by exit(). Some filesystems will
          oops if we try to open a file in that context because they want to
          access current->fs or suchlike.
    
          To get around this, I added the following:
    
          (A) An inode flag, I_PINNING_FSCACHE_WB, to be set on a network
              filesystem inode to indicate that we have a usage count on the
              cookie caching that inode.
    
          (B) A flag in struct writeback_control, unpinned_fscache_wb, that
              is set when __writeback_single_inode() clears the last dirty
              page from i_pages - at which point it clears
              I_PINNING_FSCACHE_WB and sets this flag.
    
              This has to be done here so that clearing I_PINNING_FSCACHE_WB
              can be done atomically with the check of PAGECACHE_TAG_DIRTY
              that clears I_DIRTY_PAGES.
    
          (C) A function, fscache_set_page_dirty(), which if it is not set,
              sets I_PINNING_FSCACHE_WB and calls fscache_use_cookie() to
              pin the cache resources.
    
          (D) A function, fscache_unpin_writeback(), to be called by
              ->write_inode() to unuse the cookie.
    
          (E) A function, fscache_clear_inode_writeback(), to be called when
              the inode is evicted, before clear_inode() is called. This
              cleans up any lingering I_PINNING_FSCACHE_WB.
    
          The network filesystem can then use these tools to make sure that
          fscache_write_to_cache() can write locally modified data to the
          cache as well as to the server.
    
          For the future, I'm working on write helpers for netfs lib that
          should allow this facility to be removed by keeping track of the
          dirty regions separately - but that's incomplete at the moment and
          is also going to be affected by folios, one way or another, since
          it deals with pages"
    
    Link: https://lore.kernel.org/all/510611.1641942444@warthog.procyon.org.uk/
    Tested-by: Dominique Martinet <asmadeus@codewreck.org> # 9p
    Tested-by: kafs-testing@auristor.com # afs
    Tested-by: Jeff Layton <jlayton@kernel.org> # ceph
    Tested-by: Dave Wysochanski <dwysocha@redhat.com> # nfs
    Tested-by: Daire Byrne <daire@dneg.com> # nfs
    
    * tag 'fscache-rewrite-20220111' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: (67 commits)
      9p, afs, ceph, nfs: Use current_is_kswapd() rather than gfpflags_allow_blocking()
      fscache: Add a tracepoint for cookie use/unuse
      fscache: Rewrite documentation
      ceph: add fscache writeback support
      ceph: conversion to new fscache API
      nfs: Implement cache I/O by accessing the cache directly
      nfs: Convert to new fscache volume/cookie API
      9p: Copy local writes to the cache when writing to the server
      9p: Use fscache indexing rewrite and reenable caching
      afs: Skip truncation on the server of data we haven't written yet
      afs: Copy local writes to the cache when writing to the server
      afs: Convert afs to use the new fscache API
      fscache, cachefiles: Display stat of culling events
      fscache, cachefiles: Display stats of no-space events
      cachefiles: Allow cachefiles to actually function
      fscache, cachefiles: Store the volume coherency data
      cachefiles: Implement the I/O routines
      cachefiles: Implement cookie resize for truncate
      cachefiles: Implement begin and end I/O operation
      cachefiles: Implement backing file wrangling
      ...
    torvalds committed Jan 12, 2022
  4. Merge tag 'fuse-update-5.17' of git://git.kernel.org/pub/scm/linux/ke…

    …rnel/git/mszeredi/fuse
    
    Pull fuse updates from Miklos Szeredi:
    
     - Fix a regression introduced in 5.15
    
     - Extend the size of the FUSE_INIT request to accommodate for more
       flags. There's a slight possibility of a regression for obscure fuse
       servers; if this happens, then more complexity will need to be added
       to the protocol
    
     - Allow the DAX property to be controlled by the server on a per-inode
       basis in virtiofs
    
     - Allow sending security context to the server when creating a file or
       directory
    
    * tag 'fuse-update-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
      Documentation/filesystem/dax: DAX on virtiofs
      fuse: mark inode DONT_CACHE when per inode DAX hint changes
      fuse: negotiate per inode DAX in FUSE_INIT
      fuse: enable per inode DAX
      fuse: support per inode DAX in fuse protocol
      fuse: make DAX mount option a tri-state
      fuse: add fuse_should_enable_dax() helper
      fuse: Pass correct lend value to filemap_write_and_wait_range()
      fuse: send security context of inode on file
      fuse: extend init flags
    torvalds committed Jan 12, 2022
  5. Merge tag 'fs_for_v5.17-rc1' of git://git.kernel.org/pub/scm/linux/ke…

    …rnel/git/jack/linux-fs
    
    Pull UDF / reiserfs updates from Jan Kara:
     "One UDF fix and one reiserfs cleanup"
    
    * tag 'fs_for_v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
      udf: Fix error handling in udf_new_inode()
      reiserfs: don't use congestion_wait()
    torvalds committed Jan 12, 2022
  6. Merge tag 'fsnotify_for_v5.17-rc1' of git://git.kernel.org/pub/scm/li…

    …nux/kernel/git/jack/linux-fs
    
    Pull fanotify updates from Jan Kara:
     "Support for new FAN_RENAME fanotify event and support for reporting
      child info in directory fanotify events (FAN_REPORT_TARGET_FID)"
    
    * tag 'fsnotify_for_v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
      fanotify: wire up FAN_RENAME event
      fanotify: report old and/or new parent+name in FAN_RENAME event
      fanotify: record either old name new name or both for FAN_RENAME
      fanotify: record old and new parent and name in FAN_RENAME event
      fanotify: support secondary dir fh and name in fanotify_info
      fanotify: use helpers to parcel fanotify_info buffer
      fanotify: use macros to get the offset to fanotify_info buffer
      fsnotify: generate FS_RENAME event with rich information
      fanotify: introduce group flag FAN_REPORT_TARGET_FID
      fsnotify: separate mark iterator type from object type enum
      fsnotify: clarify object type argument
    torvalds committed Jan 12, 2022
  7. Merge tag 'iomap-5.17' of git://git.infradead.org/users/willy/linux

    Pull iomap updates from Matthew Wilcox:
     "Convert xfs/iomap to use folios.
    
      This should be all that is needed for XFS to use large folios. There
      is no code in this pull request to create large folios, but no
      additional changes should be needed to XFS or iomap once they are
      created.
    
      Usually this would have come from Darrick, and we had intended that it
      would come that route. Between the holidays and various things which
      Darrick needed to work on, he asked if I could send things directly.
    
      There weren't any other iomap patches pending for this release, which
      probably also played a role"
    
    * tag 'iomap-5.17' of git://git.infradead.org/users/willy/linux: (26 commits)
      iomap: Inline __iomap_zero_iter into its caller
      xfs: Support large folios
      iomap: Support large folios in invalidatepage
      iomap: Convert iomap_migrate_page() to use folios
      iomap: Convert iomap_add_to_ioend() to take a folio
      iomap: Simplify iomap_do_writepage()
      iomap: Simplify iomap_writepage_map()
      iomap,xfs: Convert ->discard_page to ->discard_folio
      iomap: Convert iomap_write_end_inline to take a folio
      iomap: Convert iomap_write_begin() and iomap_write_end() to folios
      iomap: Convert __iomap_zero_iter to use a folio
      iomap: Allow iomap_write_begin() to be called with the full length
      iomap: Convert iomap_page_mkwrite to use a folio
      iomap: Convert readahead and readpage to use a folio
      iomap: Convert iomap_read_inline_data to take a folio
      iomap: Use folio offsets instead of page offsets
      iomap: Convert bio completions to use folios
      iomap: Pass the iomap_page into iomap_set_range_uptodate
      iomap: Add iomap_invalidate_folio
      iomap: Convert iomap_releasepage to use a folio
      ...
    torvalds committed Jan 12, 2022
  8. Merge tag 'folio-5.17' of git://git.infradead.org/users/willy/pagecache

    Pull folio conversion updates from Matthew Wilcox:
     "Convert much of the page cache to use folios
    
      This stops just short of actually enabling large folios. It converts
      everything that I noticed needs to be converted, but there may still
      be places I've overlooked which still have page size assumptions.
    
      The big change here is using large entries in the page cache XArray
      instead of many small entries. That only affects shmem for now, but
      it's a pretty big change for shmem since it changes where memory needs
      to be allocated (at split time instead of insertion)"
    
    * tag 'folio-5.17' of git://git.infradead.org/users/willy/pagecache: (49 commits)
      mm: Use multi-index entries in the page cache
      XArray: Add xas_advance()
      truncate,shmem: Handle truncates that split large folios
      truncate: Convert invalidate_inode_pages2_range to folios
      fs: Convert vfs_dedupe_file_range_compare to folios
      mm: Remove pagevec_remove_exceptionals()
      mm: Convert find_lock_entries() to use a folio_batch
      filemap: Return only folios from find_get_entries()
      filemap: Convert filemap_get_read_batch() to use a folio_batch
      filemap: Convert filemap_read() to use a folio
      truncate: Add invalidate_complete_folio2()
      truncate: Convert invalidate_inode_pages2_range() to use a folio
      truncate: Skip known-truncated indices
      truncate,shmem: Add truncate_inode_folio()
      shmem: Convert part of shmem_undo_range() to use a folio
      mm: Add unmap_mapping_folio()
      truncate: Add truncate_cleanup_folio()
      filemap: Add filemap_release_folio()
      filemap: Use a folio in filemap_page_mkwrite
      filemap: Use a folio in filemap_map_pages
      ...
    torvalds committed Jan 12, 2022
  9. Merge tag 'spdx-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kerne…

    …l/git/gregkh/spdx
    
    Pull SPDX/License update from Greg KH:
     "Here is a single change that fixes up the description of the 'LGPL-2.1
      or later' identifiers so that the tools properly acknowledge that this
      is a valid license.
    
      This change has been in linux-next for weeks with no reported problems"
    
    * tag 'spdx-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
      LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers
    torvalds committed Jan 12, 2022
  10. Merge tag 'usb-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel…

    …/git/gregkh/usb
    
    Pull USB and Thunderbolt updates from Greg KH:
     "Here is the big set of USB and Thunderbolt driver changes for
      5.17-rc1.
    
      Nothing major in here, just lots of little updates and cleanups. These
      include:
    
       - some USB header fixes picked from Ingo's header-splitup work
    
       - more USB4/Thunderbolt hardware support added
    
       - USB gadget driver updates and additions
    
       - USB typec additions (includes some acpi changes, which were acked
         by the ACPI maintainer)
    
       - core USB fixes as found by syzbot that were too late for 5.16-final
    
       - USB dwc3 driver updates
    
       - USB dwc2 driver updates
    
       - platform_get_irq() conversions of some USB drivers
    
       - other minor USB driver updates and additions
    
      All of these have been in linux-next for a while with no reported
      issues"
    
    * tag 'usb-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (111 commits)
      docs: ABI: fixed formatting in configfs-usb-gadget-uac2
      usb: gadget: u_audio: Subdevice 0 for capture ctls
      usb: gadget: u_audio: fix calculations for small bInterval
      usb: dwc2: gadget: initialize max_speed from params
      usb: dwc2: do not gate off the hardware if it does not support clock gating
      usb: dwc3: qcom: Fix NULL vs IS_ERR checking in dwc3_qcom_probe
      headers/deps: USB: Optimize <linux/usb/ch9.h> dependencies, remove <linux/device.h>
      USB: common: debug: add needed kernel.h include
      headers/prep: Fix non-standard header section: drivers/usb/host/ohci-tmio.c
      headers/prep: Fix non-standard header section: drivers/usb/cdns3/core.h
      headers/prep: usb: gadget: Fix namespace collision
      USB: core: Fix bug in resuming hub's handling of wakeup requests
      USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status
      usb: dwc3: dwc3-qcom: Add missing platform_device_put() in dwc3_qcom_acpi_register_core
      usb: gadget: clear related members when goto fail
      usb: gadget: don't release an existing dev->buf
      usb: dwc2: Simplify a bitmap declaration
      usb: Remove usb_for_each_port()
      usb: typec: port-mapper: Convert to the component framework
      usb: Link the ports to the connectors they are attached to
      ...
    torvalds committed Jan 12, 2022
  11. Merge tag 'tty-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel…

    …/git/gregkh/tty
    
    Pull tty/serial driver updates from Greg KH:
     "Here is the big set of tty/serial driver updates for 5.17-rc1.
    
      Nothing major in here, just lots of good updates and fixes, including:
    
       - more tty core cleanups from Jiri as well as mxser driver cleanups.
         This is the majority of the core diffstat
    
       - tty documentation updates from Jiri
    
       - platform_get_irq() updates
    
       - various serial driver updates for new features and hardware
    
       - fifo usage for 8250 console, reducing cpu load a lot
    
       - LED fix for keyboards, long-time bugfix that went through many
         revisions
    
       - minor cleanups
    
      All have been in linux-next for a while with no reported problems"
    
    * tag 'tty-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (119 commits)
      serial: core: Keep mctrl register state and cached copy in sync
      serial: stm32: correct loop for dma error handling
      serial: stm32: fix flow control transfer in DMA mode
      serial: stm32: rework TX DMA state condition
      serial: stm32: move tx dma terminate DMA to shutdown
      serial: pl011: Drop redundant DTR/RTS preservation on close/open
      serial: pl011: Drop CR register reset on set_termios
      serial: pl010: Drop CR register reset on set_termios
      serial: liteuart: fix MODULE_ALIAS
      serial: 8250_bcm7271: Fix return error code in case of dma_alloc_coherent() failure
      Revert "serdev: BREAK/FRAME/PARITY/OVERRUN notification prototype V2"
      tty: goldfish: Use platform_get_irq() to get the interrupt
      serdev: BREAK/FRAME/PARITY/OVERRUN notification prototype V2
      tty: serial: meson: Drop the legacy compatible strings and clock code
      serial: pmac_zilog: Use platform_get_irq() to get the interrupt
      serial: bcm63xx: Use platform_get_irq() to get the interrupt
      serial: ar933x: Use platform_get_irq() to get the interrupt
      serial: vt8500: Use platform_get_irq() to get the interrupt
      serial: altera_jtaguart: Use platform_get_irq_optional() to get the interrupt
      serial: pxa: Use platform_get_irq() to get the interrupt
      ...
    torvalds committed Jan 12, 2022
  12. Merge tag 'staging-5.17-rc1' of git://git.kernel.org/pub/scm/linux/ke…

    …rnel/git/gregkh/staging
    
    Pull staging driver updates from Greg KH:
     "Here's the big set of staging driver updates for 5.17-rc1
    
      Nothing major in here at all, just lots and lots of tiny cleanups.
      Overall more code was removed than added, which is always nice, but
      not a huge change.
    
      Majority of the work happened in the r8188eu driver, that had hundreds
      of cleanups happen on it, but almost all other staging drivers had
      cleanups as well. No new functionality was added, cleanups only.
    
      All of these have been in linux-next for a while with no reported
      problems"
    
    * tag 'staging-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (308 commits)
      staging: r8188eu: rename camelcase variable uintPeerChannel
      staging: r8188eu: make BW20_24G_Diff a 1-D array
      staging: r8188eu: make OFDM_24G_Diff a 1-D array
      staging: r8188eu: BW40_24G_Diff is set but not used
      staging: r8188eu: CCK_24G_Diff is set but not used
      staging: r8188eu: make Index24G_BW40_Base a 1-D array
      staging: r8188eu: make Index24G_CCK_Base a 1-D array
      staging: r8188eu: rfPath is always 0
      staging: r8188eu: remove unneeded parameter from rtl8188e_SetHalODMVar
      staging: pi433: add comment to rx_lock mutex definition
      staging: pi433: fix frequency deviation check
      staging: vc04_services: rename BM2835 to BCM2835 in headers comments
      staging: vc04_services: rename string literal containing bm2835_* to bcm2835*_
      staging: vc04_services: rename variables containing bm2835_* to bcm2835_*
      staging: vc04_services: rename functions containing bm2835_* to bcm2835_*
      staging: vc04_services: rename structures bm2835_mmal_dev and bm2835_mmal_v4l2_ctrl
      staging: greybus: audio: Check null pointer
      staging: r8188eu: add spaces around P2P_AP_P2P_CH_SWITCH_PROCESS_WK
      staging: r8188eu: turbo scan is always off for r8188eu
      staging: r8188eu: cmd_issued_cnt is set but not used
      ...
    torvalds committed Jan 12, 2022
  13. Merge tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linu…

    …x/kernel/git/gregkh/driver-core
    
    Pull driver core updates from Greg KH:
     "Here is the set of changes for the driver core for 5.17-rc1.
    
      Lots of little things here, including:
    
       - kobj_type cleanups
    
       - auxiliary_bus documentation updates
    
       - auxiliary_device conversions for some drivers (relevant subsystems
         all have provided acks for these)
    
       - kernfs lock contention reduction for some workloads
    
       - other tiny cleanups and changes.
    
      All of these have been in linux-next for a while with no reported
      issues"
    
    * tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (43 commits)
      kobject documentation: remove default_attrs information
      drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb
      debugfs: lockdown: Allow reading debugfs files that are not world readable
      driver core: Make bus notifiers in right order in really_probe()
      driver core: Move driver_sysfs_remove() after driver_sysfs_add()
      firmware: edd: remove empty default_attrs array
      firmware: dmi-sysfs: use default_groups in kobj_type
      qemu_fw_cfg: use default_groups in kobj_type
      firmware: memmap: use default_groups in kobj_type
      sh: sq: use default_groups in kobj_type
      headers/uninline: Uninline single-use function: kobject_has_children()
      devtmpfs: mount with noexec and nosuid
      driver core: Simplify async probe test code by using ktime_ms_delta()
      nilfs2: use default_groups in kobj_type
      kobject: remove kset from struct kset_uevent_ops callbacks
      driver core: make kobj_type constant.
      driver core: platform: document registration-failure requirement
      vdpa/mlx5: Use auxiliary_device driver data helpers
      net/mlx5e: Use auxiliary_device driver data helpers
      soundwire: intel: Use auxiliary_device driver data helpers
      ...
    torvalds committed Jan 12, 2022
  14. Merge tag 'pinctrl-v5.17-1' of git://git.kernel.org/pub/scm/linux/ker…

    …nel/git/linusw/linux-pinctrl
    
    Pull pin control bulk updates from Linus Walleij:
     "Core changes:
    
       - New standard enumerator and corresponding device tree bindings for
         output impedance pin configuration. (Implemented and used in the
         Renesas rzg2l driver.)
    
       - Cleanup of Kconfig and Makefile to be somewhat orderly and
         alphabetic.
    
      New drivers:
    
       - Samsung Exynos 7885 pin controller.
    
       - Ocelot LAN966x pin controller.
    
       - Qualcomm SDX65 pin controller.
    
       - Qualcomm SM8450 pin controller.
    
       - Qualcomm PM8019, PM8226 and PM2250 pin controllers.
    
       - NXP/Freescale i.MXRT1050 pin controller.
    
       - Intel Thunder Bay pin controller.
    
      Enhancements:
    
       - Introduction of the string library helper function
         "kasprintf_strarray()" and subsequent use in Rockchip, ST and
         Armada pin control drivers, as well as the GPIO mockup driver.
    
       - The Ocelot pin controller has been extensively rewritten to use
         regmap and other modern kernel infrastructure.
    
       - The Microchip SGPIO driver has been converted to use regmap.
    
       - The SPEAr driver had been converted to use regmap.
    
       - Substantial cleanups and janitorial on the Apple pin control driver
         that was merged for v5.16.
    
       - Janitorial to remove of_node assignments in the GPIO portions that
         anyway get this handled in the GPIO core.
    
       - Minor cleanups and improvements in several pin controllers"
    
    * tag 'pinctrl-v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (98 commits)
      pinctrl: imx: fix assigning groups names
      dt-bindings: pinctrl: mt8195: add wrapping node of pin configurations
      pinctrl: bcm: ns: use generic groups & functions helpers
      pinctrl: imx: fix allocation result check
      pinctrl: samsung: Use platform_get_irq_optional() to get the interrupt
      pinctrl: Propagate firmware node from a parent device
      dt-bindings: pinctrl: qcom: Add SDX65 pinctrl bindings
      pinctrl: add one more "const" for generic function groups
      pinctrl: keembay: rework loops looking for groups names
      pinctrl: keembay: comment process of building functions a bit
      pinctrl: imx: prepare for making "group_names" in "function_desc" const
      ARM: dts: gpio-ranges property is now required
      pinctrl: aspeed: fix unmet dependencies on MFD_SYSCON for PINCTRL_ASPEED
      pinctrl: Get rid of duplicate of_node assignment in the drivers
      pinctrl-sunxi: don't call pinctrl_gpio_direction()
      pinctrl-bcm2835: don't call pinctrl_gpio_direction()
      pinctrl: bcm2835: Silence uninit warning
      pinctrl: Sort Kconfig and Makefile entries alphabetically
      pinctrl: Add Intel Thunder Bay pinctrl driver
      dt-bindings: pinctrl: Add bindings for Intel Thunderbay pinctrl driver
      ...
    torvalds committed Jan 12, 2022
  15. leds: lp55xx: initialise output direction from dts

    Commit a5d3d1a ("leds: lp55xx: Initialize enable GPIO direction to
    output") attempts to fix this, but the fix did not work since at least
    for the Nokia N900 the value needs to be set to HIGH, per the device
    tree. So rather than hardcoding the value to a potentially invalid value
    for some devices, let's set direction in lp55xx_init_device.
    
    Fixes: a5d3d1a ("leds: lp55xx: Initialize enable GPIO direction to output")
    Fixes: 92a8156 ("leds: lp55xx: Add multicolor framework support to lp55xx")
    Fixes: ac219bf ("leds: lp55xx: Convert to use GPIO descriptors")
    Signed-off-by: Merlijn Wajer <merlijn@wizzup.org>
    Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
    Signed-off-by: Pavel Machek <pavel@ucw.cz>
    MerlijnWajer authored and pavelmachek committed Jan 12, 2022
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