Commit Graph

8599 Commits

Author SHA1 Message Date
Linus Torvalds
3bf6a9e36e virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes
partial support for < MAX_ORDER - 1 granularity for virtio-mem
 driver_override for vdpa
 sysfs ABI documentation for vdpa
 multiqueue config support for mlx5 vdpa
 
 Misc fixes, cleanups.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmHiDHkPHG1zdEByZWRo
 YXQuY29tAAoJECgfDbjSjVRpVT4H/3Veixt3uYPOmuLU2tSx+8X+sFTtik81hyiE
 okz5fRJrxxA8SqS76FnmO10FS4hlPOGNk0Z5WVhr0yihwFvPLvpCM/xi2Lmrz9I7
 pB0sXOIocEL1xApsxukR9K1Twpb2hfYsflbJYUVlRfhS5G0izKJNZp5I7OPrzd80
 vVNNDWKW2iLDlfqsavumI4Kvm4nsFuCHG03jzMtcIa7YTXYV3DORD4ZGFFVUOIQN
 t5F74TznwHOeYgJeg7TzjFjfPWmXjLetvx10QX1A1uOvwppWW/QY6My0UafTXNXj
 VB3gOwJPf+gxXAXl/4bafq4NzM0xys6cpcPpjvhmU+erY4UuyAU=
 =Y1eO
 -----END PGP SIGNATURE-----

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "virtio,vdpa,qemu_fw_cfg: features, cleanups, and fixes.

   - partial support for < MAX_ORDER - 1 granularity for virtio-mem

   - driver_override for vdpa

   - sysfs ABI documentation for vdpa

   - multiqueue config support for mlx5 vdpa

   - and misc fixes, cleanups"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (42 commits)
  vdpa/mlx5: Fix tracking of current number of VQs
  vdpa/mlx5: Fix is_index_valid() to refer to features
  vdpa: Protect vdpa reset with cf_mutex
  vdpa: Avoid taking cf_mutex lock on get status
  vdpa/vdpa_sim_net: Report max device capabilities
  vdpa: Use BIT_ULL for bit operations
  vdpa/vdpa_sim: Configure max supported virtqueues
  vdpa/mlx5: Report max device capabilities
  vdpa: Support reporting max device capabilities
  vdpa/mlx5: Restore cur_num_vqs in case of failure in change_num_qps()
  vdpa: Add support for returning device configuration information
  vdpa/mlx5: Support configuring max data virtqueue
  vdpa/mlx5: Fix config_attr_mask assignment
  vdpa: Allow to configure max data virtqueues
  vdpa: Read device configuration only if FEATURES_OK
  vdpa: Sync calls set/get config/status with cf_mutex
  vdpa/mlx5: Distribute RX virtqueues in RQT object
  vdpa: Provide interface to read driver features
  vdpa: clean up get_config_size ret value handling
  virtio_ring: mark ring unused on error
  ...
2022-01-18 10:05:48 +02:00
Linus Torvalds
6a8d7fbf1c More ACPI updates for 5.17-rc1
- Add support for the the Platform Firmware Runtime Update and
    Telemetry (PFRUT) interface based on ACPI to allow certain pieces
    of the platform firmware to be updated without restarting the
    system and to provide a mechanism for collecting platform firmware
    telemetry data (Chen Yu, Dan Carpenter, Yang Yingliang).
 
  - Ignore E820 reservations covering PCI host bridge windows on
    sufficiently recent x86 systems to avoid issues with allocating
    PCI BARs on systems where the E820 reservations cover the entire
    PCI host bridge memory window returned by the _CRS object in the
    system's ACPI tables (Hans de Goede).
 
  - Fix and clean up acpi_scan_init() (Rafael Wysocki).
 
  - Add more sanity checking to ACPI SPCR tables parsing (Mark
    Langsdorf).
 
  - Fix up ACPI APD (AMD Soc) driver initialization (Jiasheng Jiang).
 
  - Drop unnecessary "static" from the ACPI PCC address space handling
    driver added recently (kernel test robot).
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmHlrTwSHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRxQ00QAI3CYIyM+TtgxOkun/DQdHEtLOXxVsQG
 V9p9zNa0xFjQY2fE3wwa4r03fg/AfM+qqOdgZDg2QnUlHVx+ZqzNlxMVnYz2QK3P
 lhZUJ2sX0ziAYC5AJFP44mcU4yAFgqGgUgv6VUGdoG2khngKA5ds1qYPqdNMigGr
 lfAoro2tVpKL66czvglBM6Af0RIrZvmh5dpwtja1tfquAy2qLOLfwBIafdFjrTS8
 nVckdBNTgd12BxMaTlEIr8ZKX9Qe/YI0s+avzLc/lMI8gBlG0ZkGczDHxjLE48iE
 ZHwttNJm6PKR6Sj5AwXjswkW0n0aqVz1BbeDgdeL9zB6WbH9+EQaQFqYIc1pNyGG
 f67c8YwGFPMGx3BKdTksFESKb6DZifc1zbye3OKLxQquaWmufmhmQDVuXZzcfRO3
 dkhIngX/sieEWwj1P1WdaDO4vC2zG2devJhxu3WGV8HCAHsZUoBduUwk+YZUVyp3
 y+imobCCGEKZnHxtqJg7+VnQnH8ZTHFgOyqGa0boI5M8Dkae+qCcPCRDxHNa7L+7
 Hb1eCH5RbB4MKQj/dmf01vpy/Q3gZOMHOoOHyMWp+IveculjcCxOIVZN0YQizj+3
 Nw+1dcJLM6iR21f63zOQkoOhoFchp88IDc1PJtJnZOvI49Q9YB/2HKQdBGn292ZL
 +e3TWGpsfaZW
 =I4UB
 -----END PGP SIGNATURE-----

Merge tag 'acpi-5.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "The most significant item here is the Platform Firmware Runtime Update
  and Telemetry (PFRUT) support designed to allow certain pieces of the
  platform firmware to be updated on the fly, among other things.

  Also important is the e820 handling change on x86 that should work
  around PCI BAR allocation issues on some systems shipping since 2019.

  The rest is just a handful of assorted fixes and cleanups on top of
  the ACPI material merged previously.

  Specifics:

   - Add support for the the Platform Firmware Runtime Update and
     Telemetry (PFRUT) interface based on ACPI to allow certain pieces
     of the platform firmware to be updated without restarting the
     system and to provide a mechanism for collecting platform firmware
     telemetry data (Chen Yu, Dan Carpenter, Yang Yingliang).

   - Ignore E820 reservations covering PCI host bridge windows on
     sufficiently recent x86 systems to avoid issues with allocating PCI
     BARs on systems where the E820 reservations cover the entire PCI
     host bridge memory window returned by the _CRS object in the
     system's ACPI tables (Hans de Goede).

   - Fix and clean up acpi_scan_init() (Rafael Wysocki).

   - Add more sanity checking to ACPI SPCR tables parsing (Mark
     Langsdorf).

   - Fix up ACPI APD (AMD Soc) driver initialization (Jiasheng Jiang).

   - Drop unnecessary "static" from the ACPI PCC address space handling
     driver added recently (kernel test robot)"

* tag 'acpi-5.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: PCC: pcc_ctx can be static
  ACPI: scan: Rename label in acpi_scan_init()
  ACPI: scan: Simplify initialization of power and sleep buttons
  ACPI: scan: Change acpi_scan_init() return value type to void
  ACPI: SPCR: check if table->serial_port.access_width is too wide
  ACPI: APD: Check for NULL pointer after calling devm_ioremap()
  x86/PCI: Ignore E820 reservations for bridge windows on newer systems
  ACPI: pfr_telemetry: Fix info leak in pfrt_log_ioctl()
  ACPI: pfr_update: Fix return value check in pfru_write()
  ACPI: tools: Introduce utility for firmware updates/telemetry
  ACPI: Introduce Platform Firmware Runtime Telemetry driver
  ACPI: Introduce Platform Firmware Runtime Update device driver
  efi: Introduce EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER and corresponding structures
2022-01-18 08:51:51 +02:00
Rafael J. Wysocki
e3daa2607b Merge branch 'acpi-pfrut'
Merge support for the Platform Firmware Runtime Update and Telemetry
interface based on ACPI.

The interface provided here allows updating certain pieces of the
platform firmware without restarting the system and collecting
platform firmware telemetry data.

This also includes a utility for accesing the new interface from user
space.

* acpi-pfrut:
  ACPI: pfr_telemetry: Fix info leak in pfrt_log_ioctl()
  ACPI: pfr_update: Fix return value check in pfru_write()
  ACPI: tools: Introduce utility for firmware updates/telemetry
  ACPI: Introduce Platform Firmware Runtime Telemetry driver
  ACPI: Introduce Platform Firmware Runtime Update device driver
  efi: Introduce EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER and corresponding structures
2022-01-17 18:25:57 +01:00
Linus Torvalds
0c947b893d 13 cifs/smb3 fixes, mostly multichannel, reconnect relate
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmHk2A0ACgkQiiy9cAdy
 T1GjmgwAhJA5Z8nr28Q/DrKdUkdKeHbPQUsroQlRVzO7gswnVQe2EKc/cfBj2bC2
 a/uD8G3Kkgv3n6UCjbj5FkfAQRIcuQaZfxPEYMrlk6quBmSeqSTts/YOGICfCvw8
 4Ra/pULtuF3Y27/3z98owbMxi/OScVP7vOxGVSQOgBJazTX0Lgtnt+UK2gKMYqjD
 rGDaFScf8eq6J4Py2E2Ritn06v4Zk3/G1C+66SwJePnHdPfNh9ym+OKjiz8OkhB2
 o968pt9QpBb6hizZlr/uO402lcxQkDVGmUKjHNA8xeCZvOvlBAlJFJY7FdfswlRv
 62nxWhXg8hZBda1qJQS+7PLLK/2ovEFApcYk3ZZu67lCPHtk0cloxGkNmaJ7qcu1
 /IDKFwPEiN3PqwE50hIHx9X3VaSdoOrL41MJVc1EzubM6kmgQHsq6FczKC8zWStH
 ZioulKkc6r+/bJWCkllMIFoo7hb/M67i8QLF9VSaepgxz1A1oN23N78X6rShzcjE
 56qh83F+
 =Kauh
 -----END PGP SIGNATURE-----

Merge tag '5.17-rc-part1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs updates from Steve French:

 - multichannel patches mostly related to improving reconnect behavior

 - minor cleanup patches

* tag '5.17-rc-part1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix FILE_BOTH_DIRECTORY_INFO definition
  cifs: move superblock magic defitions to magic.h
  cifs: Fix smb311_update_preauth_hash() kernel-doc comment
  cifs: avoid race during socket reconnect between send and recv
  cifs: maintain a state machine for tcp/smb/tcon sessions
  cifs: fix hang on cifs_get_next_mid()
  cifs: take cifs_tcp_ses_lock for status checks
  cifs: reconnect only the connection and not smb session where possible
  cifs: add WARN_ON for when chan_count goes below minimum
  cifs: adjust DebugData to use chans_need_reconnect for conn status
  cifs: use the chans_need_reconnect bitmap for reconnect status
  cifs: track individual channel status using chans_need_reconnect
  cifs: remove redundant assignment to pointer p
2022-01-17 09:53:21 +02:00
Linus Torvalds
763978ca67 Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull module updates from Luis Chamberlain:
 "The biggest change here is in-kernel support for module decompression.
  This change is being made to help support LSMs like LoadPin as
  otherwise it loses link between the source of kernel module on the
  disk and binary blob that is being loaded into the kernel.

  kmod decompression is still done by userspace even with this is done,
  both because there are no measurable gains in not doing so and as it
  adds a secondary extra check for validating the module before loading
  it into the kernel.

  The rest of the changes are minor, the only other change worth
  mentionin there is Jessica Yu is now bowing out of maintenance of
  modules as she's taking a break from work.

  While there were other changes posted for modules, those have not yet
  received much review of testing so I'm not yet comfortable in merging
  any of those changes yet."

* 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
  module: fix signature check failures when using in-kernel decompression
  kernel: Fix spelling mistake "compresser" -> "compressor"
  MAINTAINERS: add mailing lists for kmod and modules
  module.h: allow #define strings to work with MODULE_IMPORT_NS
  module: add in-kernel support for decompressing
  MAINTAINERS: Remove myself as modules maintainer
  module: Remove outdated comment
2022-01-17 07:32:51 +02:00
Linus Torvalds
79e06c4c49 RISCV:
- Use common KVM implementation of MMU memory caches
 
 - SBI v0.2 support for Guest
 
 - Initial KVM selftests support
 
 - Fix to avoid spurious virtual interrupts after clearing hideleg CSR
 
 - Update email address for Anup and Atish
 
 ARM:
 - Simplification of the 'vcpu first run' by integrating it into
   KVM's 'pid change' flow
 
 - Refactoring of the FP and SVE state tracking, also leading to
   a simpler state and less shared data between EL1 and EL2 in
   the nVHE case
 
 - Tidy up the header file usage for the nvhe hyp object
 
 - New HYP unsharing mechanism, finally allowing pages to be
   unmapped from the Stage-1 EL2 page-tables
 
 - Various pKVM cleanups around refcounting and sharing
 
 - A couple of vgic fixes for bugs that would trigger once
   the vcpu xarray rework is merged, but not sooner
 
 - Add minimal support for ARMv8.7's PMU extension
 
 - Rework kvm_pgtable initialisation ahead of the NV work
 
 - New selftest for IRQ injection
 
 - Teach selftests about the lack of default IPA space and
   page sizes
 
 - Expand sysreg selftest to deal with Pointer Authentication
 
 - The usual bunch of cleanups and doc update
 
 s390:
 - fix sigp sense/start/stop/inconsistency
 
 - cleanups
 
 x86:
 - Clean up some function prototypes more
 
 - improved gfn_to_pfn_cache with proper invalidation, used by Xen emulation
 
 - add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery
 
 - completely remove potential TOC/TOU races in nested SVM consistency checks
 
 - update some PMCs on emulated instructions
 
 - Intel AMX support (joint work between Thomas and Intel)
 
 - large MMU cleanups
 
 - module parameter to disable PMU virtualization
 
 - cleanup register cache
 
 - first part of halt handling cleanups
 
 - Hyper-V enlightened MSR bitmap support for nested hypervisors
 
 Generic:
 - clean up Makefiles
 
 - introduce CONFIG_HAVE_KVM_DIRTY_RING
 
 - optimize memslot lookup using a tree
 
 - optimize vCPU array usage by converting to xarray
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmHhxvsUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroPZkAf+Nz92UL/5nNGcdHtE4m7AToMmitE9
 bYkesf9BMQvAe5wjkABLuoHGi6ay4jabo4fiGzbdkiK7lO5YgfsWiMB3/MT5fl4E
 jRPzaVQabp3YZLM8UYCBmfUVuRj524S967SfSRe0AvYjDEH8y7klPf4+7sCsFT0/
 Px9Vf2KGuOlf0eM78yKg4rGaF0jS22eLgXm6FfNMY8/e29ZAo/jyUmqBY+Z2xxZG
 aWhceDtSheW1jwLHLj3nOlQJvHTn8LVGXBE/R8Gda3ZjrBV2rKaDi4Fh+HD+dz86
 2zVXwzQ7uck2CMW73GMoXMTWoKSHMyvlBOs1BdvBm4UsnGcXR+q8IFCeuQ==
 =s73m
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "RISCV:

   - Use common KVM implementation of MMU memory caches

   - SBI v0.2 support for Guest

   - Initial KVM selftests support

   - Fix to avoid spurious virtual interrupts after clearing hideleg CSR

   - Update email address for Anup and Atish

  ARM:

   - Simplification of the 'vcpu first run' by integrating it into KVM's
     'pid change' flow

   - Refactoring of the FP and SVE state tracking, also leading to a
     simpler state and less shared data between EL1 and EL2 in the nVHE
     case

   - Tidy up the header file usage for the nvhe hyp object

   - New HYP unsharing mechanism, finally allowing pages to be unmapped
     from the Stage-1 EL2 page-tables

   - Various pKVM cleanups around refcounting and sharing

   - A couple of vgic fixes for bugs that would trigger once the vcpu
     xarray rework is merged, but not sooner

   - Add minimal support for ARMv8.7's PMU extension

   - Rework kvm_pgtable initialisation ahead of the NV work

   - New selftest for IRQ injection

   - Teach selftests about the lack of default IPA space and page sizes

   - Expand sysreg selftest to deal with Pointer Authentication

   - The usual bunch of cleanups and doc update

  s390:

   - fix sigp sense/start/stop/inconsistency

   - cleanups

  x86:

   - Clean up some function prototypes more

   - improved gfn_to_pfn_cache with proper invalidation, used by Xen
     emulation

   - add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery

   - completely remove potential TOC/TOU races in nested SVM consistency
     checks

   - update some PMCs on emulated instructions

   - Intel AMX support (joint work between Thomas and Intel)

   - large MMU cleanups

   - module parameter to disable PMU virtualization

   - cleanup register cache

   - first part of halt handling cleanups

   - Hyper-V enlightened MSR bitmap support for nested hypervisors

  Generic:

   - clean up Makefiles

   - introduce CONFIG_HAVE_KVM_DIRTY_RING

   - optimize memslot lookup using a tree

   - optimize vCPU array usage by converting to xarray"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (268 commits)
  x86/fpu: Fix inline prefix warnings
  selftest: kvm: Add amx selftest
  selftest: kvm: Move struct kvm_x86_state to header
  selftest: kvm: Reorder vcpu_load_state steps for AMX
  kvm: x86: Disable interception for IA32_XFD on demand
  x86/fpu: Provide fpu_sync_guest_vmexit_xfd_state()
  kvm: selftests: Add support for KVM_CAP_XSAVE2
  kvm: x86: Add support for getting/setting expanded xstate buffer
  x86/fpu: Add uabi_size to guest_fpu
  kvm: x86: Add CPUID support for Intel AMX
  kvm: x86: Add XCR0 support for Intel AMX
  kvm: x86: Disable RDMSR interception of IA32_XFD_ERR
  kvm: x86: Emulate IA32_XFD_ERR for guest
  kvm: x86: Intercept #NM for saving IA32_XFD_ERR
  x86/fpu: Prepare xfd_err in struct fpu_guest
  kvm: x86: Add emulation for IA32_XFD
  x86/fpu: Provide fpu_update_guest_xfd() for IA32_XFD emulation
  kvm: x86: Enable dynamic xfeatures at KVM_SET_CPUID2
  x86/fpu: Provide fpu_enable_guest_xfd_features() for KVM
  x86/fpu: Add guest support to xfd_enable_feature()
  ...
2022-01-16 16:15:14 +02:00
Linus Torvalds
d0a231f01e pci-v5.17-changes
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAmHgpugUHGJoZWxnYWFz
 QGdvb2dsZS5jb20ACgkQWYigwDrT+vz59g//eWRLb0j2Vgv84ZH4x1iv6MaBboQr
 2wScnfoN+MIoh+tuM4kRak15X4nB8rJhNZZCzesMUN6PeZvrkoPo4sz/xdzIrA/N
 qY3h8NZ3nC4yCvs/tGem0zZUcSCJsxUAD0eegyMSa142xGIOQTHBSJRflR9osKSo
 bnQlKTkugV8t4kD7NlQ5M3HzN3R+mjsII5JNzCqv2XlzAZG3D8DhPyIpZnRNAOmW
 KiHOVXvQOocfUlvSs5kBlhgR1HgJkGnruCrJ1iDCWQH1Zk0iuVgoZWgVda6Cs3Xv
 gcTJLB7VoSdNZKnct9aMNYPKziHkYc7clilPeDsJs5TlSv3kKERzLj6c/5ZAxFWN
 +RsH+zYHDXJSsL/w0twPnaF5WCuVYUyrs3UiSjUvShKl1T9k9J+Jo8zwUUZx8Xb0
 qXX8jRGMHolBGwPXm2fHEb4bwTUI8emPj29qK4L96KsQ3zKXWB8eGSosxUP52Tti
 RR2WZjkvwlREZCJp6jSEJYkhzoEaVAm8CjKpKUuneX9WcUOsMBSs9k7EXbUy7JeM
 hq5Keuqa8PZo/IK2DYYAchNnBJUDMsWJeduBW12qSmx3J+9victP2qOFu+9skP0a
 85xlO6Cx8beiQh+XnY7jyROvIFuxTnGKHgkq/89Ham/whEzdJ+GRIiYB218kLLCW
 ILdas3C2iiGz99I=
 =Vgg4
 -----END PGP SIGNATURE-----

Merge tag 'pci-v5.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:
   - Use pci_find_vsec_capability() instead of open-coding it (Andy
     Shevchenko)
   - Convert pci_dev_present() stub from macro to static inline to avoid
     'unused variable' errors (Hans de Goede)
   - Convert sysfs slot attributes from default_attrs to default_groups
     (Greg Kroah-Hartman)
   - Use DWORD accesses for LTR, L1 SS to avoid BayHub OZ711LV2 erratum
     (Rajat Jain)
   - Remove unnecessary initialization of static variables (Longji Guo)

  Resource management:
   - Always write Intel I210 ROM BAR on update to work around device
     defect (Bjorn Helgaas)

  PCIe native device hotplug:
   - Fix pciehp lockdep errors on Thunderbolt undock (Hans de Goede)
   - Fix infinite loop in pciehp IRQ handler on power fault (Lukas
     Wunner)

  Power management:
   - Convert amd64-agp, sis-agp, via-agp from legacy PCI power
     management to generic power management (Vaibhav Gupta)

  IOMMU:
   - Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller
     so it can work with an IOMMU (Yifeng Li)

  Error handling:
   - Add PCI_ERROR_RESPONSE and related definitions for signaling and
     checking for transaction errors on PCI (Naveen Naidu)
   - Fabricate PCI_ERROR_RESPONSE data (~0) in config read wrappers,
     instead of in host controller drivers, when transactions fail on
     PCI (Naveen Naidu)
   - Use PCI_POSSIBLE_ERROR() to check for possible failure of config
     reads (Naveen Naidu)

  Peer-to-peer DMA:
   - Add Logan Gunthorpe as P2PDMA maintainer (Bjorn Helgaas)

  ASPM:
   - Calculate link L0s and L1 exit latencies when needed instead of
     caching them (Saheed O. Bolarinwa)
   - Calculate device L0s and L1 acceptable exit latencies when needed
     instead of caching them (Saheed O. Bolarinwa)
   - Remove struct aspm_latency since it's no longer needed (Saheed O.
     Bolarinwa)

  APM X-Gene PCIe controller driver:
   - Fix IB window setup, which was broken by the fact that IB resources
     are now sorted in address order instead of DT dma-ranges order (Rob
     Herring)

  Apple PCIe controller driver:
   - Enable clock gating to save power (Hector Martin)
   - Fix REFCLK1 enable/poll logic (Hector Martin)

  Broadcom STB PCIe controller driver:
   - Declare bitmap correctly for use by bitmap interfaces (Christophe
     JAILLET)
   - Clean up computation of legacy and non-legacy MSI bitmasks (Florian
     Fainelli)
   - Update suspend/resume/remove error handling to warn about errors
     and not fail the operation (Jim Quinlan)
   - Correct the "pcie" and "msi" interrupt descriptions in DT binding
     (Jim Quinlan)
   - Add DT bindings for endpoint voltage regulators (Jim Quinlan)
   - Split brcm_pcie_setup() into two functions (Jim Quinlan)
   - Add mechanism for turning on voltage regulators for connected
     devices (Jim Quinlan)
   - Turn voltage regulators for connected devices on/off when bus is
     added or removed (Jim Quinlan)
   - When suspending, don't turn off voltage regulators for wakeup
     devices (Jim Quinlan)

  Freescale i.MX6 PCIe controller driver:
   - Add i.MX8MM support (Richard Zhu)

  Freescale Layerscape PCIe controller driver:
   - Use DWC common ops instead of layerscape-specific link-up functions
     (Hou Zhiqiang)

  Intel VMD host bridge driver:
   - Honor platform ACPI _OSC feature negotiation for Root Ports below
     VMD (Kai-Heng Feng)
   - Add support for Raptor Lake SKUs (Karthik L Gopalakrishnan)
   - Reset everything below VMD before enumerating to work around
     failure to enumerate NVMe devices when guest OS reboots (Nirmal
     Patel)

  Bridge emulation (used by Marvell Aardvark and MVEBU):
   - Make emulated ROM BAR read-only by default (Pali Rohár)
   - Make some emulated legacy PCI bits read-only for PCIe devices (Pali
     Rohár)
   - Update reserved bits in emulated PCIe Capability (Pali Rohár)
   - Allow drivers to emulate different PCIe Capability versions (Pali
     Rohár)
   - Set emulated Capabilities List bit for all PCIe devices, since they
     must have at least a PCIe Capability (Pali Rohár)

  Marvell Aardvark PCIe controller driver:
   - Add bridge emulation definitions for PCIe DEVCAP2, DEVCTL2,
     DEVSTA2, LNKCAP2, LNKCTL2, LNKSTA2, SLTCAP2, SLTCTL2, SLTSTA2 (Pali
     Rohár)
   - Add aardvark support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2
     registers (Pali Rohár)
   - Clear all MSIs at setup to avoid spurious interrupts (Pali Rohár)
   - Disable bus mastering when unbinding host controller driver (Pali
     Rohár)
   - Mask all interrupts when unbinding host controller driver (Pali
     Rohár)
   - Fix memory leak in host controller unbind (Pali Rohár)
   - Assert PERST# when unbinding host controller driver (Pali Rohár)
   - Disable link training when unbinding host controller driver (Pali
     Rohár)
   - Disable common PHY when unbinding host controller driver (Pali
     Rohár)
   - Fix resource type checking to check only IORESOURCE_MEM, not
     IORESOURCE_MEM_64, which is a flavor of IORESOURCE_MEM (Pali Rohár)

  Marvell MVEBU PCIe controller driver:
   - Implement pci_remap_iospace() for ARM so mvebu can use
     devm_pci_remap_iospace() instead of the previous ARM-specific
     pci_ioremap_io() interface (Pali Rohár)
   - Use the standard pci_host_probe() instead of the device-specific
     mvebu_pci_host_probe() (Pali Rohár)
   - Replace all uses of ARM-specific pci_ioremap_io() with the ARM
     implementation of the standard pci_remap_iospace() interface and
     remove pci_ioremap_io() (Pali Rohár)
   - Skip initializing invalid Root Ports (Pali Rohár)
   - Check for errors from pci_bridge_emul_init() (Pali Rohár)
   - Ignore any bridges at non-zero function numbers (Pali Rohár)
   - Return ~0 data for invalid config read size (Pali Rohár)
   - Disallow mapping interrupts on emulated bridges (Pali Rohár)
   - Clear Root Port Memory & I/O Space Enable and Bus Master Enable at
     initialization (Pali Rohár)
   - Make type bits in Root Port I/O Base register read-only (Pali
     Rohár)
   - Disable Root Port windows when base/limit set to invalid values
     (Pali Rohár)
   - Set controller to Root Complex mode (Pali Rohár)
   - Set Root Port Class Code to PCI Bridge (Pali Rohár)
   - Update emulated Root Port secondary bus numbers to better reflect
     the actual topology (Pali Rohár)
   - Add PCI_BRIDGE_CTL_BUS_RESET support to emulated Root Ports so
     pci_reset_secondary_bus() can reset connected devices (Pali Rohár)
   - Add PCI_EXP_DEVCTL Error Reporting Enable support to emulated Root
     Ports (Pali Rohár)
   - Add PCI_EXP_RTSTA PME Status bit support to emulated Root Ports
     (Pali Rohár)
   - Add DEVCAP2, DEVCTL2 and LNKCTL2 support to emulated Root Ports on
     Armada XP and newer devices (Pali Rohár)
   - Export mvebu-mbus.c symbols to allow pci-mvebu.c to be a module
     (Pali Rohár)
   - Add support for compiling as a module (Pali Rohár)

  MediaTek PCIe controller driver:
   - Assert PERST# for 100ms to allow power and clock to stabilize
     (qizhong cheng)

  MediaTek PCIe Gen3 controller driver:
   - Disable Mediatek DVFSRC voltage request since lack of DVFSRC to
     respond to the request causes failure to exit L1 PM Substate
     (Jianjun Wang)

  MediaTek MT7621 PCIe controller driver:
   - Declare mt7621_pci_ops static (Sergio Paracuellos)
   - Give pcibios_root_bridge_prepare() access to host bridge windows
     (Sergio Paracuellos)
   - Move MIPS I/O coherency unit setup from driver to
     pcibios_root_bridge_prepare() (Sergio Paracuellos)
   - Add missing MODULE_LICENSE() (Sergio Paracuellos)
   - Allow COMPILE_TEST for all arches (Sergio Paracuellos)

  Microsoft Hyper-V host bridge driver:
   - Add hv-internal interfaces to encapsulate arch IRQ dependencies
     (Sunil Muthuswamy)
   - Add arm64 Hyper-V vPCI support (Sunil Muthuswamy)

  Qualcomm PCIe controller driver:
   - Undo PM setup in qcom_pcie_probe() error handling path (Christophe
     JAILLET)
   - Use __be16 type to store return value from cpu_to_be16()
     (Manivannan Sadhasivam)
   - Constify static dw_pcie_ep_ops (Rikard Falkeborn)

  Renesas R-Car PCIe controller driver:
   - Fix aarch32 abort handler so it doesn't check the wrong bus clock
     before accessing the host controller (Marek Vasut)

  TI Keystone PCIe controller driver:
   - Add register offset for ti,syscon-pcie-id and ti,syscon-pcie-mode
     DT properties (Kishon Vijay Abraham I)

  MicroSemi Switchtec management driver:
   - Add Gen4 automotive device IDs (Kelvin Cao)
   - Declare state_names[] as static so it's not allocated and
     initialized for every call (Kelvin Cao)

  Host controller driver cleanups:
   - Use of_device_get_match_data(), not of_match_device(), when we only
     need the device data in altera, artpec6, cadence, designware-plat,
     dra7xx, keystone, kirin (Fan Fei)
   - Drop pointless of_device_get_match_data() cast in j721e (Bjorn
     Helgaas)
   - Drop redundant struct device * from j721e since struct cdns_pcie
     already has one (Bjorn Helgaas)
   - Rename driver structs to *_pcie in intel-gw, iproc, ls-gen4,
     mediatek-gen3, microchip, mt7621, rcar-gen2, tegra194, uniphier,
     xgene, xilinx, xilinx-cpm for consistency across drivers (Fan Fei)
   - Fix invalid address space conversions in hisi, spear13xx (Bjorn
     Helgaas)

  Miscellaneous:
   - Sort Intel Device IDs by value (Andy Shevchenko)
   - Change Capability offsets to hex to match spec (Baruch Siach)
   - Correct misspellings (Krzysztof Wilczyński)
   - Terminate statement with semicolon in pci_endpoint_test.c (Ming
     Wang)"

* tag 'pci-v5.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (151 commits)
  PCI: mt7621: Allow COMPILE_TEST for all arches
  PCI: mt7621: Add missing MODULE_LICENSE()
  PCI: mt7621: Move MIPS setup to pcibios_root_bridge_prepare()
  PCI: Let pcibios_root_bridge_prepare() access bridge->windows
  PCI: mt7621: Declare mt7621_pci_ops static
  PCI: brcmstb: Do not turn off WOL regulators on suspend
  PCI: brcmstb: Add control of subdevice voltage regulators
  PCI: brcmstb: Add mechanism to turn on subdev regulators
  PCI: brcmstb: Split brcm_pcie_setup() into two funcs
  dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators
  dt-bindings: PCI: Correct brcmstb interrupts, interrupt-map.
  PCI: brcmstb: Fix function return value handling
  PCI: brcmstb: Do not use __GENMASK
  PCI: brcmstb: Declare 'used' as bitmap, not unsigned long
  PCI: hv: Add arm64 Hyper-V vPCI support
  PCI: hv: Make the code arch neutral by adding arch specific interfaces
  PCI: pciehp: Use down_read/write_nested(reset_lock) to fix lockdep errors
  x86/PCI: Remove initialization of static variables to false
  PCI: Use DWORD accesses for LTR, L1 SS to avoid erratum
  misc: pci_endpoint_test: Terminate statement with semicolon
  ...
2022-01-16 08:08:11 +02:00
Linus Torvalds
88db845808 Description for this pull request:
- Fix ->i_blocks truncation issue that still exists elsewhere.
  - 4 cleanups & typos fixes.
  - Move super block magic number to magic.h
  - Fix missing REQ_SYNC in exfat_update_bhs().
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCgA0FiEE6NzKS6Uv/XAAGHgyZwv7A1FEIQgFAmHiZ68WHGxpbmtpbmpl
 b25Aa2VybmVsLm9yZwAKCRBnC/sDUUQhCNUhD/48wj/ce6+GNeyKeadfcD/wMFJF
 DNs564zTHcjecUg7+tzk82b4n7NM3X//hCaEqEwmX1WjcZcXbtSNqUY7DTMTadgM
 Ad10JQheOfVRHqSAchNK3ph86Mo5u1c29+4tWS9tv4UaZeAgyCXph+w8d5/M0BBj
 Rhxoi2Sb2cIVJAu6eMWbKGy4aQVN8a/nlf36ZCKDNCz8IwLyNtUtQ8myZLDhf7BA
 df4guextxvSyjURqFy/2At+/+faP/nXddJTKOIkmV3VGM9b7URjwADVsEjtouZIo
 TAH+flRle5tMFFguFLoXt+pVLuiK3AMtgV/1JNaAQGTotD0VpB66LkFGqsUjBtew
 D8XzoESafeMp3HmWA2eSAbHQ3n1ulzyhuJ5RJpGfhicBFlFlwld4uoGm1JUOA05T
 or84sPN32rCVMxeMquykXHQ0HzGXg7coZHjGG9YjYV1FsyGCIO3aa5IpQ9D2g0WZ
 wvRruXXwFur19mnGXYWfwB67HUXYB8iiAHWKXQM2msMklpLT1+rY+M8RBd/Yz4bJ
 WNrU/U4NCGMjlB4Qmq/ZGazubDOXO4xNt/28gkNm+S2EDGp0w6HOIP/BqHO9879k
 Xx0EqgLSPfGgdMtH0wigfEZ9UkI3W1+Z0gInGs2LVtSPq7rS7HzbKd9CNci2d41Y
 2mCoqCZ0eH14+CXS5A==
 =/DUv
 -----END PGP SIGNATURE-----

Merge tag 'exfat-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

Pull exfat updates from Namjae Jeon:

 - Fix ->i_blocks truncation issue that still exists elsewhere.

 - Four cleanups & typos fixes.

 - Move super block magic number to magic.h

 - Fix missing REQ_SYNC in exfat_update_bhs().

* tag 'exfat-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
  exfat: fix missing REQ_SYNC in exfat_update_bhs()
  exfat: remove argument 'sector' from exfat_get_dentry()
  exfat: move super block magic number to magic.h
  exfat: fix i_blocks for files truncated over 4 GiB
  exfat: reuse exfat_inode_info variable instead of calling EXFAT_I()
  exfat: make exfat_find_location() static
  exfat: fix typos in comments
  exfat: simplify is_valid_cluster()
2022-01-16 07:54:11 +02:00
Linus Torvalds
59d41458f1 drm fixes for 5.17-rc1:
drivers fixes:
 - i915 fixes for ttm backend + one pm wakelock fix
 - amdgpu fixes, fairly big pile of small things all over. Note this
   doesn't yet containe the fixed version of the otg sync patch that
   blew up
 - small driver fixes: meson, sun4i, vga16fb probe fix
 
 drm core fixes:
 - cma-buf heap locking
 - ttm compilation
 - self refresh helper state check
 - wrong error message in atomic helpers
 - mipi-dbi buffer mapping
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEb4nG6jLu8Y5XI+PfTA9ye/CYqnEFAmHhrxUACgkQTA9ye/CY
 qnEowxAAgBPwGEobRGMbR3Me98vEKvcWqSxBe/k1VC4LhO5DrvbG5iW9cuxCJZM2
 wlGlGAtU7C7pcCP5Xp1UlMqZ5a0rSVhqMPPkMKO9+7033ofSlAQatnMI1EENH6Hn
 BkhXwTyuOBSN6zqskg8FKqzF+VPTt5ZV2U5qJzQweP/wFtZPAKI4tWE4oKiHactH
 fJHnAi7T6ytF6a7J21BsSEluk4z7BjmcmFF0tW6iuq7Y6TXDFXFq9QFDR041b2rI
 GYDUXl2mebp/L+2M3sPYuMiIiyJ8enh7crNIdmi+EstmzRADa7RMjnY3j2tJg/7M
 pqnuJZAVcpkCurb7NMr3ycmrxnhfUsZfbuXvm+k5yJYfQCaGNiKy1ObsFWH9zBDz
 XMuxcE+csSaX/7rjoyXrL2ZTRPXnVwJNJ8x1CuKn3giLxMSqnPnDMjyHmNLB8qa1
 R0wbPQbdx5+jWgs/ngUGFNo4vFBnNmqQP4G3LaWJ/Ku5cSrEM+Jt9GJOw5jjVgun
 gaOlKlUpMBlKmXOwkvhRW2AwHRcL7lrBuIw0oFOThdMzkSNlKSNBMpAkgvD/9C7g
 IDtJgA7a3MqzLjhPLmhUB3rFyXz5dg5rNZhoH8z4DFiJVpTKYYA5/UoU/RTXZGqW
 yFdrBkFmNJeKTZZAe+e/4OP/dm1vKVEKK6Ko/M9CrELzBKSussg=
 =h74X
 -----END PGP SIGNATURE-----

Merge tag 'drm-next-2022-01-14' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Daniel Vetter:
"drivers fixes:

   - i915 fixes for ttm backend + one pm wakelock fix

   - amdgpu fixes, fairly big pile of small things all over. Note this
     doesn't yet containe the fixed version of the otg sync patch that
     blew up

   - small driver fixes: meson, sun4i, vga16fb probe fix

  drm core fixes:

   - cma-buf heap locking

   - ttm compilation

   - self refresh helper state check

   - wrong error message in atomic helpers

   - mipi-dbi buffer mapping"

* tag 'drm-next-2022-01-14' of git://anongit.freedesktop.org/drm/drm: (49 commits)
  drm/mipi-dbi: Fix source-buffer address in mipi_dbi_buf_copy
  drm: fix error found in some cases after the patch d1af5cd86997
  drm/ttm: fix compilation on ARCH=um
  dma-buf: cma_heap: Fix mutex locking section
  video: vga16fb: Only probe for EGA and VGA 16 color graphic cards
  drm/amdkfd: Fix ASIC name typos
  drm/amdkfd: Fix DQM asserts on Hawaii
  drm/amdgpu: Use correct VIEWPORT_DIMENSION for DCN2
  drm/amd/pm: only send GmiPwrDnControl msg on master die (v3)
  drm/amdgpu: use spin_lock_irqsave to avoid deadlock by local interrupt
  drm/amdgpu: not return error on the init_apu_flags
  drm/amdkfd: Use prange->update_list head for remove_list
  drm/amdkfd: Use prange->list head for insert_list
  drm/amdkfd: make SPDX License expression more sound
  drm/amdkfd: Check for null pointer after calling kmemdup
  drm/amd/display: invalid parameter check in dmub_hpd_callback
  Revert "drm/amdgpu: Don't inherit GEM object VMAs in child process"
  drm/amd/display: reset dcn31 SMU mailbox on failures
  drm/amdkfd: use default_groups in kobj_type
  drm/amdgpu: use default_groups in kobj_type
  ...
2022-01-16 06:52:38 +02:00
Linus Torvalds
f56caedaf9 Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:
 "146 patches.

  Subsystems affected by this patch series: kthread, ia64, scripts,
  ntfs, squashfs, ocfs2, vfs, and mm (slab-generic, slab, kmemleak,
  dax, kasan, debug, pagecache, gup, shmem, frontswap, memremap,
  memcg, selftests, pagemap, dma, vmalloc, memory-failure, hugetlb,
  userfaultfd, vmscan, mempolicy, oom-kill, hugetlbfs, migration, thp,
  ksm, page-poison, percpu, rmap, zswap, zram, cleanups, hmm, and
  damon)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (146 commits)
  mm/damon: hide kernel pointer from tracepoint event
  mm/damon/vaddr: hide kernel pointer from damon_va_three_regions() failure log
  mm/damon/vaddr: use pr_debug() for damon_va_three_regions() failure logging
  mm/damon/dbgfs: remove an unnecessary variable
  mm/damon: move the implementation of damon_insert_region to damon.h
  mm/damon: add access checking for hugetlb pages
  Docs/admin-guide/mm/damon/usage: update for schemes statistics
  mm/damon/dbgfs: support all DAMOS stats
  Docs/admin-guide/mm/damon/reclaim: document statistics parameters
  mm/damon/reclaim: provide reclamation statistics
  mm/damon/schemes: account how many times quota limit has exceeded
  mm/damon/schemes: account scheme actions that successfully applied
  mm/damon: remove a mistakenly added comment for a future feature
  Docs/admin-guide/mm/damon/usage: update for kdamond_pid and (mk|rm)_contexts
  Docs/admin-guide/mm/damon/usage: mention tracepoint at the beginning
  Docs/admin-guide/mm/damon/usage: remove redundant information
  Docs/admin-guide/mm/damon/usage: update for scheme quotas and watermarks
  mm/damon: convert macro functions to static inline functions
  mm/damon: modify damon_rand() macro to static inline function
  mm/damon: move damon_rand() definition into damon.h
  ...
2022-01-15 20:37:06 +02:00
Jeff Layton
dea2903719 cifs: move superblock magic defitions to magic.h
Help userland apps to identify cifs and smb2 mounts.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2022-01-15 10:08:44 -06:00
Colin Cross
9a10064f56 mm: add a field to store names for private anonymous memory
In many userspace applications, and especially in VM based applications
like Android uses heavily, there are multiple different allocators in
use.  At a minimum there is libc malloc and the stack, and in many cases
there are libc malloc, the stack, direct syscalls to mmap anonymous
memory, and multiple VM heaps (one for small objects, one for big
objects, etc.).  Each of these layers usually has its own tools to
inspect its usage; malloc by compiling a debug version, the VM through
heap inspection tools, and for direct syscalls there is usually no way
to track them.

On Android we heavily use a set of tools that use an extended version of
the logic covered in Documentation/vm/pagemap.txt to walk all pages
mapped in userspace and slice their usage by process, shared (COW) vs.
unique mappings, backing, etc.  This can account for real physical
memory usage even in cases like fork without exec (which Android uses
heavily to share as many private COW pages as possible between
processes), Kernel SamePage Merging, and clean zero pages.  It produces
a measurement of the pages that only exist in that process (USS, for
unique), and a measurement of the physical memory usage of that process
with the cost of shared pages being evenly split between processes that
share them (PSS).

If all anonymous memory is indistinguishable then figuring out the real
physical memory usage (PSS) of each heap requires either a pagemap
walking tool that can understand the heap debugging of every layer, or
for every layer's heap debugging tools to implement the pagemap walking
logic, in which case it is hard to get a consistent view of memory
across the whole system.

Tracking the information in userspace leads to all sorts of problems.
It either needs to be stored inside the process, which means every
process has to have an API to export its current heap information upon
request, or it has to be stored externally in a filesystem that somebody
needs to clean up on crashes.  It needs to be readable while the process
is still running, so it has to have some sort of synchronization with
every layer of userspace.  Efficiently tracking the ranges requires
reimplementing something like the kernel vma trees, and linking to it
from every layer of userspace.  It requires more memory, more syscalls,
more runtime cost, and more complexity to separately track regions that
the kernel is already tracking.

This patch adds a field to /proc/pid/maps and /proc/pid/smaps to show a
userspace-provided name for anonymous vmas.  The names of named
anonymous vmas are shown in /proc/pid/maps and /proc/pid/smaps as
[anon:<name>].

Userspace can set the name for a region of memory by calling

   prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, start, len, (unsigned long)name)

Setting the name to NULL clears it.  The name length limit is 80 bytes
including NUL-terminator and is checked to contain only printable ascii
characters (including space), except '[',']','\','$' and '`'.

Ascii strings are being used to have a descriptive identifiers for vmas,
which can be understood by the users reading /proc/pid/maps or
/proc/pid/smaps.  Names can be standardized for a given system and they
can include some variable parts such as the name of the allocator or a
library, tid of the thread using it, etc.

The name is stored in a pointer in the shared union in vm_area_struct
that points to a null terminated string.  Anonymous vmas with the same
name (equivalent strings) and are otherwise mergeable will be merged.
The name pointers are not shared between vmas even if they contain the
same name.  The name pointer is stored in a union with fields that are
only used on file-backed mappings, so it does not increase memory usage.

CONFIG_ANON_VMA_NAME kernel configuration is introduced to enable this
feature.  It keeps the feature disabled by default to prevent any
additional memory overhead and to avoid confusing procfs parsers on
systems which are not ready to support named anonymous vmas.

The patch is based on the original patch developed by Colin Cross, more
specifically on its latest version [1] posted upstream by Sumit Semwal.
It used a userspace pointer to store vma names.  In that design, name
pointers could be shared between vmas.  However during the last
upstreaming attempt, Kees Cook raised concerns [2] about this approach
and suggested to copy the name into kernel memory space, perform
validity checks [3] and store as a string referenced from
vm_area_struct.

One big concern is about fork() performance which would need to strdup
anonymous vma names.  Dave Hansen suggested experimenting with
worst-case scenario of forking a process with 64k vmas having longest
possible names [4].  I ran this experiment on an ARM64 Android device
and recorded a worst-case regression of almost 40% when forking such a
process.

This regression is addressed in the followup patch which replaces the
pointer to a name with a refcounted structure that allows sharing the
name pointer between vmas of the same name.  Instead of duplicating the
string during fork() or when splitting a vma it increments the refcount.

[1] https://lore.kernel.org/linux-mm/20200901161459.11772-4-sumit.semwal@linaro.org/
[2] https://lore.kernel.org/linux-mm/202009031031.D32EF57ED@keescook/
[3] https://lore.kernel.org/linux-mm/202009031022.3834F692@keescook/
[4] https://lore.kernel.org/linux-mm/5d0358ab-8c47-2f5f-8e43-23b89d6a8e95@intel.com/

Changes for prctl(2) manual page (in the options section):

PR_SET_VMA
	Sets an attribute specified in arg2 for virtual memory areas
	starting from the address specified in arg3 and spanning the
	size specified	in arg4. arg5 specifies the value of the attribute
	to be set. Note that assigning an attribute to a virtual memory
	area might prevent it from being merged with adjacent virtual
	memory areas due to the difference in that attribute's value.

	Currently, arg2 must be one of:

	PR_SET_VMA_ANON_NAME
		Set a name for anonymous virtual memory areas. arg5 should
		be a pointer to a null-terminated string containing the
		name. The name length including null byte cannot exceed
		80 bytes. If arg5 is NULL, the name of the appropriate
		anonymous virtual memory areas will be reset. The name
		can contain only printable ascii characters (including
                space), except '[',']','\','$' and '`'.

                This feature is available only if the kernel is built with
                the CONFIG_ANON_VMA_NAME option enabled.

[surenb@google.com: docs: proc.rst: /proc/PID/maps: fix malformed table]
  Link: https://lkml.kernel.org/r/20211123185928.2513763-1-surenb@google.com
[surenb: rebased over v5.15-rc6, replaced userpointer with a kernel copy,
 added input sanitization and CONFIG_ANON_VMA_NAME config. The bulk of the
 work here was done by Colin Cross, therefore, with his permission, keeping
 him as the author]

Link: https://lkml.kernel.org/r/20211019215511.3771969-2-surenb@google.com
Signed-off-by: Colin Cross <ccross@google.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Glauber <jan.glauber@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Landley <rob@landley.net>
Cc: "Serge E. Hallyn" <serge.hallyn@ubuntu.com>
Cc: Shaohua Li <shli@fusionio.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-15 16:30:27 +02:00
Eli Cohen
cd2629f6df vdpa: Support reporting max device capabilities
Add max_supported_vqs and supported_features fields to struct
vdpa_mgmt_dev. Upstream drivers need to feel these values according to
the device capabilities.

These values are reported back in a netlink message when showing management
devices.

Examples:

$ auxiliary/mlx5_core.sf.1:
  supported_classes net
  max_supported_vqs 257
  dev_features CSUM GUEST_CSUM MTU HOST_TSO4 HOST_TSO6 STATUS CTRL_VQ MQ \
               CTRL_MAC_ADDR VERSION_1 ACCESS_PLATFORM

$ vdpa -j mgmtdev show
{"mgmtdev":{"auxiliary/mlx5_core.sf.1":{"supported_classes":["net"], \
  "max_supported_vqs":257,"dev_features":["CSUM","GUEST_CSUM","MTU", \
  "HOST_TSO4","HOST_TSO6","STATUS","CTRL_VQ","MQ","CTRL_MAC_ADDR", \
  "VERSION_1","ACCESS_PLATFORM"]}}}

$ vdpa -jp mgmtdev show
{
    "mgmtdev": {
        "auxiliary/mlx5_core.sf.1": {
            "supported_classes": [ "net" ],
            "max_supported_vqs": 257,
            "dev_features": ["CSUM","GUEST_CSUM","MTU","HOST_TSO4", \
                             "HOST_TSO6","STATUS","CTRL_VQ","MQ", \
                             "CTRL_MAC_ADDR","VERSION_1","ACCESS_PLATFORM"]
        }
    }
}

Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20220105114646.577224-11-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Si-Wei Liu<si-wei.liu@oracle.com>
2022-01-14 18:50:54 -05:00
Eli Cohen
612f330ec5 vdpa: Add support for returning device configuration information
Add netlink attribute to store the negotiated features. This can be used
by userspace to get the current state of the vdpa instance.

Examples:

$ vdpa dev config show vdpa-a
vdpa-a: mac 00:00:00:00:88:88 link up link_announce false max_vq_pairs 16 mtu 1500
  negotiated_features CSUM GUEST_CSUM MTU MAC HOST_TSO4 HOST_TSO6 STATUS \
  CTRL_VQ MQ CTRL_MAC_ADDR VERSION_1 ACCESS_PLATFORM

$ vdpa -j dev config show vdpa-a
{"config":{"vdpa-a":{"mac":"00:00:00:00:88:88","link ":"up","link_announce":false, \
 "max_vq_pairs":16,"mtu":1500,"negotiated_features":["CSUM","GUEST_CSUM","MTU","MAC", \
 "HOST_TSO4","HOST_TSO6","STATUS","CTRL_VQ","MQ","CTRL_MAC_ADDR","VERSION_1", \
 "ACCESS_PLATFORM"]}}}

$ vdpa -jp dev config show vdpa-a
{
    "config": {
        "vdpa-a": {
            "mac": "00:00:00:00:88:88",
            "link ": "up",
            "link_announce ": false,
            "max_vq_pairs": 16,
            "mtu": 1500,
            "negotiated_features": [
"CSUM","GUEST_CSUM","MTU","MAC","HOST_TSO4","HOST_TSO6","STATUS","CTRL_VQ","MQ", \
"CTRL_MAC_ADDR","VERSION_1","ACCESS_PLATFORM"
]
        }
    }
}

Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20220105114646.577224-9-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
2022-01-14 18:50:53 -05:00
Guang Zeng
be50b2065d kvm: x86: Add support for getting/setting expanded xstate buffer
With KVM_CAP_XSAVE, userspace uses a hardcoded 4KB buffer to get/set
xstate data from/to KVM. This doesn't work when dynamic xfeatures
(e.g. AMX) are exposed to the guest as they require a larger buffer
size.

Introduce a new capability (KVM_CAP_XSAVE2). Userspace VMM gets the
required xstate buffer size via KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2).
KVM_SET_XSAVE is extended to work with both legacy and new capabilities
by doing properly-sized memdup_user() based on the guest fpu container.
KVM_GET_XSAVE is kept for backward-compatible reason. Instead,
KVM_GET_XSAVE2 is introduced under KVM_CAP_XSAVE2 as the preferred
interface for getting xstate buffer (4KB or larger size) from KVM
(Link: https://lkml.org/lkml/2021/12/15/510)

Also, update the api doc with the new KVM_GET_XSAVE2 ioctl.

Signed-off-by: Guang Zeng <guang.zeng@intel.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Signed-off-by: Jing Liu <jing2.liu@intel.com>
Signed-off-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Message-Id: <20220105123532.12586-19-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-14 13:44:41 -05:00
Linus Torvalds
3bad80dab9 Char/Misc and other driver changes for 5.17-rc1
Here is the large set of char, misc, and other "small" driver subsystem
 changes for 5.17-rc1.
 
 Lots of different things are in here for char/misc drivers such as:
 	- habanalabs driver updates
 	- mei driver updates
 	- lkdtm driver updates
 	- vmw_vmci driver updates
 	- android binder driver updates
 	- other small char/misc driver updates
 
 Also smaller driver subsystems have also been updated, including:
 	- fpga subsystem updates
 	- iio subsystem updates
 	- soundwire subsystem updates
 	- extcon subsystem updates
 	- gnss subsystem updates
 	- phy subsystem updates
 	- coresight subsystem updates
 	- firmware subsystem updates
 	- comedi subsystem updates
 	- mhi subsystem updates
 	- speakup subsystem updates
 	- rapidio subsystem updates
 	- spmi subsystem updates
 	- virtual driver updates
 	- counter subsystem updates
 
 Too many individual changes to summarize, the shortlog contains the full
 details.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYeGNAQ8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ymoVgCg1CPjMu8/SDj3Sm3a1UMQJn9jnl8AnjQcEp3z
 hMr9mISG4r6g4PvjrJBj
 =9May
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver updates from Greg KH:
 "Here is the large set of char, misc, and other "small" driver
  subsystem changes for 5.17-rc1.

  Lots of different things are in here for char/misc drivers such as:

   - habanalabs driver updates

   - mei driver updates

   - lkdtm driver updates

   - vmw_vmci driver updates

   - android binder driver updates

   - other small char/misc driver updates

  Also smaller driver subsystems have also been updated, including:

   - fpga subsystem updates

   - iio subsystem updates

   - soundwire subsystem updates

   - extcon subsystem updates

   - gnss subsystem updates

   - phy subsystem updates

   - coresight subsystem updates

   - firmware subsystem updates

   - comedi subsystem updates

   - mhi subsystem updates

   - speakup subsystem updates

   - rapidio subsystem updates

   - spmi subsystem updates

   - virtual driver updates

   - counter subsystem updates

  Too many individual changes to summarize, the shortlog contains the
  full details.

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

* tag 'char-misc-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (406 commits)
  counter: 104-quad-8: Fix use-after-free by quad8_irq_handler
  dt-bindings: mux: Document mux-states property
  dt-bindings: ti-serdes-mux: Add defines for J721S2 SoC
  counter: remove old and now unused registration API
  counter: ti-eqep: Convert to new counter registration
  counter: stm32-lptimer-cnt: Convert to new counter registration
  counter: stm32-timer-cnt: Convert to new counter registration
  counter: microchip-tcb-capture: Convert to new counter registration
  counter: ftm-quaddec: Convert to new counter registration
  counter: intel-qep: Convert to new counter registration
  counter: interrupt-cnt: Convert to new counter registration
  counter: 104-quad-8: Convert to new counter registration
  counter: Update documentation for new counter registration functions
  counter: Provide alternative counter registration functions
  counter: stm32-timer-cnt: Convert to counter_priv() wrapper
  counter: stm32-lptimer-cnt: Convert to counter_priv() wrapper
  counter: ti-eqep: Convert to counter_priv() wrapper
  counter: ftm-quaddec: Convert to counter_priv() wrapper
  counter: intel-qep: Convert to counter_priv() wrapper
  counter: microchip-tcb-capture: Convert to counter_priv() wrapper
  ...
2022-01-14 16:02:28 +01:00
Linus Torvalds
29ec39fcf1 powerpc updates for 5.17
- 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, Yang Guang.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAmHhVFMTHG1wZUBlbGxl
 cm1hbi5pZC5hdQAKCRBR6+o8yOGlgKwzD/9UUEZzWyzMVRJvP9FPZByN2M8czxHJ
 tuqEuVqnfks8ad8tfm2ebng5t8ZuVASBQU2fpPA1+lpdvprgZN5RFGMRh729vskn
 2aHQPmFvFObNbXOgCoXzk+C5xYi3zoRMVM968neSPBneYo+xDicn/zN5CHAgsjhX
 +baemJQ7/xzwLiZgTHe8fWw3nTk3IbPBpha59SdTvR8Moy6I4O8CDPIYEm3U3/J3
 x14ZRETqjksL7YOzEBk0avm1dDZRw/johz29oRYSmCj7dyy5OqrkPwokJiRY90eA
 1lVdofDc0zElaSWkVGzKdSWRUIXjKIVdtejvDeEvl6H/mI6q4TVZE8rFmn+3Rvgf
 9q0iKtmw5Kn11cqgY/pgEGmxnQtIdAodNfI/t939E7+O5LbcznuYUiy0J/kTD/vl
 Xduotg2dsCI+5ukf1wrk2wt9LhqZL+ziOeaBhyDM4orV8T3HBYL6zWBptun//IGO
 lK6TvvCHSYnGqY4bnrAmiOnbbEtnP6nN3zbcXgSvPM0wCRHPIEqd0NRXtfISo32d
 vBPq1neXWo4wrRJj9X3yOuP+5fEA4I+hB3yrCJOkcEcz+8NhlboQXU7raVsJL+bd
 kze75H8hwX7kE71oJFFl13LbSNABgiLFARTBXKfvdQA2iLdR0Snvm+OouvwWRPo/
 Po7Nm3zqdLc/1A==
 =BxhQ
 -----END PGP SIGNATURE-----

Merge tag 'powerpc-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/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()
  ...
2022-01-14 15:17:26 +01:00
Jeff Layton
a0b3a15eab ceph: move CEPH_SUPER_MAGIC definition to magic.h
The uapi headers are missing the ceph definition. Move it there so
userland apps can ID cephfs.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2022-01-13 13:40:07 +01:00
Linus Torvalds
13eaa5bda0 IOMMU Updates for Linux v5.17
Including:
 
 	- 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
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEr9jSbILcajRFYWYyK/BELZcBGuMFAmHfBvsACgkQK/BELZcB
 GuOURRAAqHBTUUgT/f2dJbVsWMOxSx0dhDnKuLRhAREMbmcn88tR8dxPRPYB1/6q
 yyFmkh13UzEr1gosEd34P5G8GS6fMD/G4yz8p9tK6Mqu7UeU+DoiDIi3s194WhYa
 iNPBlGgQ3XznTrbBnFV+n/LjvkxSguNfjj809Jiw7Ew3i50K4GFnzRA+IZVAT4+F
 zdNmwY12Y0v4SCfHKiVR1ZB9kcn2/Dx78dlBQ6ALFuejeZGa2OVr94byKnfz+AJh
 OssrgRcgUKclWbMk4Tljf4/FIdwkLMKD6gieBFb3sNKTUpzkG8elYmETO5d+hM+l
 27CKOCz1OOqVRzKe3r5n3c0wf9UAmi0Q91zW+UVZp2i0GjxpfIeIS9/NwRy+IXHS
 U9zybU47q10WF6cVO0n6wWHPRbjPii2OZpjqhSTq57qsnniCPLwkrry9H2fP71zz
 NDAZv5qvHCvRF7QoZfkBvCCJ12ZhNnhZqTfZR2wGGITMIk6dokG4NCsU93rSVKvZ
 4xQDPm45rECmunibdc9c1vrifKC7BIWCSU5DH3AEDBU/i9QfYpVPXfJlGdz3enIV
 /FA+kcvYrh21sokly/TqiZXGSaOFBqFEN13KJReXOgbENNq6kT/4lSNjK5Q1WSWp
 qDq12EQyv0RtTEcKVDpRVunI+/G5MquO8gbIrVmsRV0SU1Z0yoM=
 =Q8LV
 -----END PGP SIGNATURE-----

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()
  ...
2022-01-12 16:15:51 -08:00
Linus Torvalds
8975f89748 fuse update for 5.17
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCYdw8xgAKCRDh3BK/laaZ
 PFy3AQCHSltzy6f234CcsFk3mtJn0im0tDbRoEYFD731JOR1YAD9HQKtJRn/sMCF
 r0PnZnOWJ35RWB3o8uEqptsgrZXJkQo=
 =HosR
 -----END PGP SIGNATURE-----

Merge tag 'fuse-update-5.17' of git://git.kernel.org/pub/scm/linux/kernel/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
2022-01-12 13:30:58 -08:00
Linus Torvalds
3d3d673306 \n
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAmHektkACgkQnJ2qBz9k
 QNk73Qf9G/8C29GC7lTZvW8ZOqM2onvP16/wpMU98jkw6/xpsdGLMmQlP4JCdB6Y
 mTttvPxwMMVrdRmt+MNIgvWPOK2LKHdkbNbj0DRw4JxLEIm+zXddAXAcvX2vLeUn
 N24idiVQxIKWS3zJhQ6H7sFjSrZ7ztjkeHWff70LIzURIupYO0+rRmKDgOqo6D5g
 cKAdb8x9ZQLr0CTQoHKQxA8IeCSirSblVaDMdes2KrJH+i05s3aqS9jBvY16nrLo
 Xvm4Vv7ecQXcmKDswuxVcmBVlVVsWxoYv1w8+v9qRGJnbgpQkjjgCGjCh54M18Do
 /OovTVlqGWRfmf2Eo1FCXXz90ppGlQ==
 =gvMh
 -----END PGP SIGNATURE-----

Merge tag 'fsnotify_for_v5.17-rc1' of git://git.kernel.org/pub/scm/linux/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
2022-01-12 13:19:35 -08:00
Linus Torvalds
6dc69d3d0d driver core changes for 5.17-rc1
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.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYd7deA8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ym8ngCgw0ANwrRPE5b1dthEmfU2f8Knk5kAn0pHQv6R
 VRZJypgNfU/Pt0ykstZD
 =CO9J
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/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
  ...
2022-01-12 11:11:34 -08:00
Linus Torvalds
42a7b4ed45 for-5.17/io_uring-2022-01-11
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmHd8BkQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpkgED/4vyoNlKfuTqRzuHAZzq+PBYlMpVbn54ebm
 z2AJ2StLrZ8rflz/9ERNVYxbSS6ELf/8H2Mdjnb5uCoRza/QkMf4JnGtgT0pBavV
 uoruKTiYgQAQJmGuhxAo0TQwyW7F6qadp1eZH8CqxB2Cwj5wgSb3SB/yIlNkj6+2
 fSzVGCh0CljhrkgFG10z507VGJYmgBqE9kl2tnfYkAA4blqyowZN4boTMx3l9fm5
 2GWt0xg80lgMCzHb5m/sbqdOrMJV77TkuiAuVc+FjIfdGiVWo7XCn3q3e0qqJhRM
 A3x9mmUyF/xNrRLMgTyYxHzKLrytBibr+VxvDLr/LmLtV8viVCsgJiP5EIiAWIAt
 BCBks31QUxHaB9fyiQ43/nsRZLHmhXErLEK4D0loAXa50p4Xl4ZdaegD6txSH3FI
 mGprv4Si1kMNqSxmzrOUfFk8Xdv/vC08RWL4UbRa8xkgwWUAIhpRaYmAtmw913kb
 MgwFQuGpE9b7ae7HNdgWzyI424srCwY5UawgpzI25ZwGAVXTXDQ2qw1Lmyyo6swT
 bsYVyH/vJLvCS1tjmBtrKfJQ0Mokm1sJpaMeTs/SfSyHmAUXEsEFdXVu6bRnVkYF
 9vjHZKOl5jA5nx6/JDpW993GnHV3FGkCDfENXs3wUYY7Hu0DDYZt0CGiqGLjC7Oq
 Ow4q3aEJQA==
 =syIB
 -----END PGP SIGNATURE-----

Merge tag 'for-5.17/io_uring-2022-01-11' of git://git.kernel.dk/linux-block

Pull io_uring updates from Jens Axboe:

 - Support for prioritized work completions (Hao)

 - Simplification of reissue (Pavel)

 - Add support for CQE skip (Pavel)

 - Memory leak fix going to 5.15-stable (Pavel)

 - Re-write of internal poll. This both cleans up that code, and gets us
   ready to fix the POLLFREE issue (Pavel)

 - Various cleanups (GuoYong, Pavel, Hao)

* tag 'for-5.17/io_uring-2022-01-11' of git://git.kernel.dk/linux-block: (31 commits)
  io_uring: fix not released cached task refs
  io_uring: remove redundant tab space
  io_uring: remove unused function parameter
  io_uring: use completion batching for poll rem/upd
  io_uring: single shot poll removal optimisation
  io_uring: poll rework
  io_uring: kill poll linking optimisation
  io_uring: move common poll bits
  io_uring: refactor poll update
  io_uring: remove double poll on poll update
  io_uring: code clean for some ctx usage
  io_uring: batch completion in prior_task_list
  io_uring: split io_req_complete_post() and add a helper
  io_uring: add helper for task work execution code
  io_uring: add a priority tw list for irq completion work
  io-wq: add helper to merge two wq_lists
  io_uring: reuse io_req_task_complete for timeouts
  io_uring: tweak iopoll CQE_SKIP event counting
  io_uring: simplify selected buf handling
  io_uring: move up io_put_kbuf() and io_put_rw_kbuf()
  ...
2022-01-12 10:20:35 -08:00
Dmitry Torokhov
b1ae6dc41e module: add in-kernel support for decompressing
Current scheme of having userspace decompress kernel modules before
loading them into the kernel runs afoul of LoadPin security policy, as
it loses link between the source of kernel module on the disk and binary
blob that is being loaded into the kernel. To solve this issue let's
implement decompression in kernel, so that we can pass a file descriptor
of compressed module file into finit_module() which will keep LoadPin
happy.

To let userspace know what compression/decompression scheme kernel
supports it will create /sys/module/compression attribute. kmod can read
this attribute and decide if it can pass compressed file to
finit_module(). New MODULE_INIT_COMPRESSED_DATA flag indicates that the
kernel should attempt to decompress the data read from file descriptor
prior to trying load the module.

To simplify things kernel will only implement single decompression
method matching compression method selected when generating modules.
This patch implements gzip and xz; more can be added later,

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2022-01-11 18:45:02 -08:00
Linus Torvalds
d601e58c5f for-5.17-tag
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAmHcX64ACgkQxWXV+ddt
 WDsIyA//UGMG0waxz40RksQL+4AnTIJ+apmmxq5VGEE8y6aUPAGKm++5Cs9cC+Os
 5xuZhNnD8hjB+eWH+tRCx8ll+T4g4skGKDCyD0fWNtZAlW8pnsIbztdO0nNYx9C0
 V++vu/hQR6M8E7ORlayEKBWy2/UnBG5p/XVLPG4RJ4vMETJPl2RLWVDpu3dj09kf
 YnD3AY0vmKEyCu/b9NtSzfZMO2/lXT2U41ezLJJfmPAXcMJ0EeSAazACVDQyq24p
 wnnr6xmdo7ZR0oGFLUmBmfxbKwd3l0JIUsi/XRysXe+8y7raIE0gKCg7NpCS276T
 BZrKmefxHhdMCA1HLlH6AkrKmQUgIaceLkXTanTYv4cnVzb6XoeV6R4IO9/JQ0yv
 YsdCL7eZ4Vl3ToPlQkYWdwUNP5UjVMg5qMwxchigbwq7jViLJtiu3WKy0O0TitzB
 n4o0cCdlv3lHRp8FS6cFmbCrsavFT8/q3vz/aRdkrojOKE0jEWVJiz0bf39j5BVO
 IiJ3RF3kbpG7TZz0+eNUbgebME8zwaWfyd6t2L7Ztvx9F4elzSW95iwGc9//TZvl
 ciNFI9LQvnZRymUItxg0HNXfbJMXJAE9ImTxA8HLkfQYpaBlwbt4avkQK56LhpN+
 nFCd5cxJy5HLFIvkRDfqpF+C247p5FICzd/hs59/cXlCynulglg=
 =9lg+
 -----END PGP SIGNATURE-----

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

Pull btrfs updates from David Sterba:
 "This end of the year branch is intentionally not that exciting. Most
  of the changes are under the hood, but there are some minor user
  visible improvements and several performance improvements too.

  Features:

   - make send work with concurrent block group relocation.

     We're not allowed to prevent send failing or silently producing
     some bad stream but with more fine grained locking and checks it's
     possible. The send vs deduplication exclusion could reuse the same
     logic in the future.

   - new exclusive operation 'balance paused' to allow adding a device
     to filesystem with paused balance

   - new sysfs file for fsid stored in the per-device directory to help
     distinguish devices when seeding is enabled, the fsid may differ
     from the one reported by the filesystem

  Performance improvements:

   - less metadata needed for directory logging, directory deletion is
     20-40% faster

   - in zoned mode, cache zone information during mount to speed up
     repeated queries (about 50% speedup)

   - free space tree entries get indexed and searched by size (latency
     -30%, search run time -30%)

   - less contention in tree node locking when inserting a key and no
     splits are needed (files/sec in fsmark improves by 1-20%)

  Fixes:

   - fix ENOSPC failure when attempting direct IO write into NOCOW range

   - fix deadlock between quota enable and other quota operations

   - global reserve minimum calculations fixed to account for free space
     tree

   - in zoned mode, fix condition for chunk allocation that may not find
     the right zone for reuse and could lead to early ENOSPC

  Core:

   - global reserve stealing got simplified and cleaned up in evict

   - remove async transaction commit based on manual transaction refs,
     reuse existing kthread and mechanisms to let it commit transaction
     before timeout

   - preparatory work for extent tree v2, add wrappers for global tree
     roots, truncation path cleanups

   - remove readahead framework, it's a bit overengineered and used only
     for scrub, and yet it does not cover all its needs, there is
     another readahead built in the b-tree search that is now used,
     performance drop on HDD is about 5% which is acceptable and scrub
     is often throttled anyway, on SSDs there's no reported drop but
     slight improvement

   - self tests report extent tree state when error occurs

   - replace assert with debugging information when an uncommitted
     transaction is found at unmount time

  Other:

   - error handling improvements

   - other cleanups and refactoring"

* tag 'for-5.17-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (115 commits)
  btrfs: output more debug messages for uncommitted transaction
  btrfs: respect the max size in the header when activating swap file
  btrfs: fix argument list that the kdoc format and script verified
  btrfs: remove unnecessary parameter type from compression_decompress_bio
  btrfs: selftests: dump extent io tree if extent-io-tree test failed
  btrfs: scrub: cleanup the argument list of scrub_stripe()
  btrfs: scrub: cleanup the argument list of scrub_chunk()
  btrfs: remove reada infrastructure
  btrfs: scrub: use btrfs_path::reada for extent tree readahead
  btrfs: scrub: remove the unnecessary path parameter for scrub_raid56_parity()
  btrfs: refactor unlock_up
  btrfs: skip transaction commit after failure to create subvolume
  btrfs: zoned: fix chunk allocation condition for zoned allocator
  btrfs: add extent allocator hook to decide to allocate chunk or not
  btrfs: zoned: unset dedicated block group on allocation failure
  btrfs: zoned: drop redundant check for REQ_OP_ZONE_APPEND and btrfs_is_zoned
  btrfs: zoned: sink zone check into btrfs_repair_one_zone
  btrfs: zoned: simplify btrfs_check_meta_write_pointer
  btrfs: zoned: encapsulate inode locking for zoned relocation
  btrfs: sysfs: add devinfo/fsid to retrieve actual fsid from the device
  ...
2022-01-11 14:53:40 -08:00
Linus Torvalds
5d7e52237c audit/stable-5.17 PR 20220110
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEES0KozwfymdVUl37v6iDy2pc3iXMFAmHceicUHHBhdWxAcGF1
 bC1tb29yZS5jb20ACgkQ6iDy2pc3iXO6GxAApAREftcLXl3mpn2vmqmEw3/kUeXt
 0OPTUU9vb/eJCFAcWV3RpMMH5ThUC+yVS6is2XX0+Bekj5xgUWsfsriH61JAqEN9
 juWuApWDuwdceSJTUzaz1JXgRMYbkBbkOyvSnIQWLTUQ/mrvx/g3K1SJWBss/ftN
 ngYeB2V1E7XHofRW4pi5W2ZXb7Lcb0OPSY3prVjaeVivg/GKeW5gogoOAQ1D4JLu
 NFwmeH0GD1dNUnonfDzNMzQWbWZ+DUE/g0PKwdaVfEOq3bU3Y2DDTwnOvwpqjT2B
 EsWJxp49ArpR+OyiJGRfcMB/TpuvPaljZviGaJrpgh/EiVxTDHOzH3MTsRpdVcmk
 MxzN7TT47zFzf2LzVrgcsK6RjlGXiieqFdYLD1VjXfwJboKALSwBE9Mb/3120xxV
 NINfaaAN3ow8c2jwnfL/WwePK5JBr62d/xwv2O+8WrydoEmC9E1veM+l5zLN3cdC
 Y5Wm6JJbVYaydG+6MROr0yPHn9IuUSnUrybpryv/Cez3VM1k6hCpmqJn5SXqYGEu
 3sXQi42sPBUU4gfSct8EhnPBNeFyLWGO/7BvaLWWXl09RMvfRyZtExtfNThBosSc
 C8WTCicCB3yuQweehaKVzBFAuuE7hdGgdkxh7B50uFbAgGHgViXtAa2WBcemwwwM
 wWOG8HOJJPh/DjY=
 =kz+D
 -----END PGP SIGNATURE-----

Merge tag 'audit-pr-20220110' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:
 "Four audit patches for v5.17:

   - Harden the code through additional use of the struct_size() macro
     and zero-length arrays to flexible-array conversions.

   - Ensure that processes which generate userspace audit records are
     not exempt from the kernel's audit throttling when the audit queues
     are being overrun"

* tag 'audit-pr-20220110' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: replace zero-length array with flexible-array member
  audit: use struct_size() helper in audit_[send|make]_reply()
  audit: ensure userspace is penalized the same as the kernel when under pressure
  audit: use struct_size() helper in kmalloc()
2022-01-11 13:08:21 -08:00
Lukas Bulwahn
9b7a4de9f1 drm/amdkfd: make SPDX License expression more sound
Commit b5f5738480 ("drm/amdkfd: Add sysfs bitfields and enums to uAPI")
adds include/uapi/linux/kfd_sysfs.h with the "GPL-2.0 OR MIT WITH
Linux-syscall-note" SPDX-License expression.

The command ./scripts/spdxcheck.py warns:

  include/uapi/linux/kfd_sysfs.h: 1:48 Exception not valid for license MIT: Linux-syscall-note

For a uapi header, the file under GPLv2 License must be combined with the
Linux-syscall-note, but combining the MIT License with the
Linux-syscall-note makes no sense, as the note provides an exception for
GPL-licensed code, not for permissively licensed code.

So, reorganize the SPDX expression to only combine the note with the GPL
License condition. This makes spdxcheck happy again.

Fixes: b5f5738480 ("drm/amdkfd: Add sysfs bitfields and enums to uAPI")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: kstewart@linuxfoundation.org
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-01-11 15:44:27 -05:00
Linus Torvalds
8efd0d9c31 Networking changes for 5.17.
Core
 ----
 
  - Defer freeing TCP skbs to the BH handler, whenever possible,
    or at least perform the freeing outside of the socket lock section
    to decrease cross-CPU allocator work and improve latency.
 
  - Add netdevice refcount tracking to locate sources of netdevice
    and net namespace refcount leaks.
 
  - Make Tx watchdog less intrusive - avoid pausing Tx and restarting
    all queues from a single CPU removing latency spikes.
 
  - Various small optimizations throughout the stack from Eric Dumazet.
 
  - Make netdev->dev_addr[] constant, force modifications to go via
    appropriate helpers to allow us to keep addresses in ordered data
    structures.
 
  - Replace unix_table_lock with per-hash locks, improving performance
    of bind() calls.
 
  - Extend skb drop tracepoint with a drop reason.
 
  - Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW.
 
 BPF
 ---
 
  - New helpers:
    - bpf_find_vma(), find and inspect VMAs for profiling use cases
    - bpf_loop(), runtime-bounded loop helper trading some execution
      time for much faster (if at all converging) verification
    - bpf_strncmp(), improve performance, avoid compiler flakiness
    - bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt()
      for tracing programs, all inlined by the verifier
 
  - Support BPF relocations (CO-RE) in the kernel loader.
 
  - Further the support for BTF_TYPE_TAG annotations.
 
  - Allow access to local storage in sleepable helpers.
 
  - Convert verifier argument types to a composable form with different
    attributes which can be shared across types (ro, maybe-null).
 
  - Prepare libbpf for upcoming v1.0 release by cleaning up APIs,
    creating new, extensible ones where missing and deprecating those
    to be removed.
 
 Protocols
 ---------
 
  - WiFi (mac80211/cfg80211):
    - notify user space about long "come back in N" AP responses,
      allow it to react to such temporary rejections
    - allow non-standard VHT MCS 10/11 rates
    - use coarse time in airtime fairness code to save CPU cycles
 
  - Bluetooth:
    - rework of HCI command execution serialization to use a common
      queue and work struct, and improve handling errors reported
      in the middle of a batch of commands
    - rework HCI event handling to use skb_pull_data, avoiding packet
      parsing pitfalls
    - support AOSP Bluetooth Quality Report
 
  - SMC:
    - support net namespaces, following the RDMA model
    - improve connection establishment latency by pre-clearing buffers
    - introduce TCP ULP for automatic redirection to SMC
 
  - Multi-Path TCP:
    - support ioctls: SIOCINQ, OUTQ, and OUTQNSD
    - support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT,
      IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY
    - support cmsgs: TCP_INQ
    - improvements in the data scheduler (assigning data to subflows)
    - support fastclose option (quick shutdown of the full MPTCP
      connection, similar to TCP RST in regular TCP)
 
  - MCTP (Management Component Transport) over serial, as defined by
    DMTF spec DSP0253 - "MCTP Serial Transport Binding".
 
 Driver API
 ----------
 
  - Support timestamping on bond interfaces in active/passive mode.
 
  - Introduce generic phylink link mode validation for drivers which
    don't have any quirks and where MAC capability bits fully express
    what's supported. Allow PCS layer to participate in the validation.
    Convert a number of drivers.
 
  - Add support to set/get size of buffers on the Rx rings and size of
    the tx copybreak buffer via ethtool.
 
  - Support offloading TC actions as first-class citizens rather than
    only as attributes of filters, improve sharing and device resource
    utilization.
 
  - WiFi (mac80211/cfg80211):
    - support forwarding offload (ndo_fill_forward_path)
    - support for background radar detection hardware
    - SA Query Procedures offload on the AP side
 
 New hardware / drivers
 ----------------------
 
  - tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with
    real-time requirements for isochronous communication with protocols
    like OPC UA Pub/Sub.
 
  - Qualcomm BAM-DMUX WWAN - driver for data channels of modems
    integrated into many older Qualcomm SoCs, e.g. MSM8916 or
    MSM8974 (qcom_bam_dmux).
 
  - Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch
    driver with support for bridging, VLANs and multicast forwarding
    (lan966x).
 
  - iwlmei driver for co-operating between Intel's WiFi driver and
    Intel's Active Management Technology (AMT) devices.
 
  - mse102x - Vertexcom MSE102x Homeplug GreenPHY chips
 
  - Bluetooth:
    - MediaTek MT7921 SDIO devices
    - Foxconn MT7922A
    - Realtek RTL8852AE
 
 Drivers
 -------
 
  - Significantly improve performance in the datapaths of:
    lan78xx, ax88179_178a, lantiq_xrx200, bnxt.
 
  - Intel Ethernet NICs:
    - igb: support PTP/time PEROUT and EXTTS SDP functions on
      82580/i354/i350 adapters
    - ixgbevf: new PF -> VF mailbox API which avoids the risk of
      mailbox corruption with ESXi
    - iavf: support configuration of VLAN features of finer granularity,
      stacked tags and filtering
    - ice: PTP support for new E822 devices with sub-ns precision
    - ice: support firmware activation without reboot
 
  - Mellanox Ethernet NICs (mlx5):
    - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
    - support TC forwarding when tunnel encap and decap happen between
      two ports of the same NIC
    - dynamically size and allow disabling various features to save
      resources for running in embedded / SmartNIC scenarios
 
  - Broadcom Ethernet NICs (bnxt):
    - use page frag allocator to improve Rx performance
    - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
 
  - Other Ethernet NICs:
    - amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support
 
  - Microsoft cloud/virtual NIC (mana):
    - add XDP support (PASS, DROP, TX)
 
  - Mellanox Ethernet switches (mlxsw):
    - initial support for Spectrum-4 ASICs
    - VxLAN with IPv6 underlay
 
  - Marvell Ethernet switches (prestera):
    - support flower flow templates
    - add basic IP forwarding support
 
  - NXP embedded Ethernet switches (ocelot & felix):
    - support Per-Stream Filtering and Policing (PSFP)
    - enable cut-through forwarding between ports by default
    - support FDMA to improve packet Rx/Tx to CPU
 
  - Other embedded switches:
    - hellcreek: improve trapping management (STP and PTP) packets
    - qca8k: support link aggregation and port mirroring
 
  - Qualcomm 802.11ax WiFi (ath11k):
    - qca6390, wcn6855: enable 802.11 power save mode in station mode
    - BSS color change support
    - WCN6855 hw2.1 support
    - 11d scan offload support
    - scan MAC address randomization support
    - full monitor mode, only supported on QCN9074
    - qca6390/wcn6855: report signal and tx bitrate
    - qca6390: rfkill support
    - qca6390/wcn6855: regdb.bin support
 
  - Intel WiFi (iwlwifi):
    - support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS)
      in cooperation with the BIOS
    - support for Optimized Connectivity Experience (OCE) scan
    - support firmware API version 68
    - lots of preparatory work for the upcoming Bz device family
 
  - MediaTek WiFi (mt76):
    - Specific Absorption Rate (SAR) support
    - mt7921: 160 MHz channel support
 
  - RealTek WiFi (rtw88):
    - Specific Absorption Rate (SAR) support
    - scan offload
 
  - Other WiFi NICs
    - ath10k: support fetching (pre-)calibration data from nvmem
    - brcmfmac: configure keep-alive packet on suspend
    - wcn36xx: beacon filter support
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmHbkZAACgkQMUZtbf5S
 IruYkQ//XX7BggcwBfukPK83j0dONolClijqKcKR08g4vB5L8GXvv6OErKIWrh4k
 h8JanCH352ZkbCSw3MvFdm825UYQv8vPMd6Qks/LJ4aSKqCuy4MIlAo+yOw4Km3O
 i7++lRfma6DqHHI59wvLjWoxZSPu8lL+rI8UsZ5qMOlnNlGAOXsNrzRjaqQ3FddY
 AMxZeBUtrPqUCCQZFq3U8apkYzUp7CA/3XR9zRcja3uPbrtOV2G+4whRF90qGNWz
 Tm/QvJ9F/Ab292cbhxR4KuaQ3hUhaCQyDjbZk3+FZzZpAVhYTVqcNjny6+yXmbiP
 NXRtwemnl1NlWKMnJM8lEeY48u626tRIkxA/Wtd61uoO5uKUSxfGP+UpUi+DfXbF
 yIw50VQ7L2bpxXP/HjtmhVgZDaWKYyh22Zw4Hp/muMJz0hgUB0KODY3tf2jUWbjJ
 0oEgocWyzhhwMQKqupTDCIaRgIs2ewYr4ZrFDhI3HnHC/vv1VjoPRUPIyxwppD2N
 cXvZb3B1sWK8iX5gCbISGzyU4bB7I0rvJSTU42ueti7n6NqRFZ79qHQpYnnY+JdO
 z1qOwY/d/yWfBoXVKRtRg2qz6CdEt5BQklwAgVEBgrFpf58gp694EwGMb1htY14J
 r/k9bVpmyIFpUnBH2CPMRfBVA3tUTqzyzzFV4AMw40NYLKmhLdo=
 =KLm3
 -----END PGP SIGNATURE-----

Merge tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core
  ----

   - Defer freeing TCP skbs to the BH handler, whenever possible, or at
     least perform the freeing outside of the socket lock section to
     decrease cross-CPU allocator work and improve latency.

   - Add netdevice refcount tracking to locate sources of netdevice and
     net namespace refcount leaks.

   - Make Tx watchdog less intrusive - avoid pausing Tx and restarting
     all queues from a single CPU removing latency spikes.

   - Various small optimizations throughout the stack from Eric Dumazet.

   - Make netdev->dev_addr[] constant, force modifications to go via
     appropriate helpers to allow us to keep addresses in ordered data
     structures.

   - Replace unix_table_lock with per-hash locks, improving performance
     of bind() calls.

   - Extend skb drop tracepoint with a drop reason.

   - Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW.

  BPF
  ---

   - New helpers:
      - bpf_find_vma(), find and inspect VMAs for profiling use cases
      - bpf_loop(), runtime-bounded loop helper trading some execution
        time for much faster (if at all converging) verification
      - bpf_strncmp(), improve performance, avoid compiler flakiness
      - bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt()
        for tracing programs, all inlined by the verifier

   - Support BPF relocations (CO-RE) in the kernel loader.

   - Further the support for BTF_TYPE_TAG annotations.

   - Allow access to local storage in sleepable helpers.

   - Convert verifier argument types to a composable form with different
     attributes which can be shared across types (ro, maybe-null).

   - Prepare libbpf for upcoming v1.0 release by cleaning up APIs,
     creating new, extensible ones where missing and deprecating those
     to be removed.

  Protocols
  ---------

   - WiFi (mac80211/cfg80211):
      - notify user space about long "come back in N" AP responses,
        allow it to react to such temporary rejections
      - allow non-standard VHT MCS 10/11 rates
      - use coarse time in airtime fairness code to save CPU cycles

   - Bluetooth:
      - rework of HCI command execution serialization to use a common
        queue and work struct, and improve handling errors reported in
        the middle of a batch of commands
      - rework HCI event handling to use skb_pull_data, avoiding packet
        parsing pitfalls
      - support AOSP Bluetooth Quality Report

   - SMC:
      - support net namespaces, following the RDMA model
      - improve connection establishment latency by pre-clearing buffers
      - introduce TCP ULP for automatic redirection to SMC

   - Multi-Path TCP:
      - support ioctls: SIOCINQ, OUTQ, and OUTQNSD
      - support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT,
        IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY
      - support cmsgs: TCP_INQ
      - improvements in the data scheduler (assigning data to subflows)
      - support fastclose option (quick shutdown of the full MPTCP
        connection, similar to TCP RST in regular TCP)

   - MCTP (Management Component Transport) over serial, as defined by
     DMTF spec DSP0253 - "MCTP Serial Transport Binding".

  Driver API
  ----------

   - Support timestamping on bond interfaces in active/passive mode.

   - Introduce generic phylink link mode validation for drivers which
     don't have any quirks and where MAC capability bits fully express
     what's supported. Allow PCS layer to participate in the validation.
     Convert a number of drivers.

   - Add support to set/get size of buffers on the Rx rings and size of
     the tx copybreak buffer via ethtool.

   - Support offloading TC actions as first-class citizens rather than
     only as attributes of filters, improve sharing and device resource
     utilization.

   - WiFi (mac80211/cfg80211):
      - support forwarding offload (ndo_fill_forward_path)
      - support for background radar detection hardware
      - SA Query Procedures offload on the AP side

  New hardware / drivers
  ----------------------

   - tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with
     real-time requirements for isochronous communication with protocols
     like OPC UA Pub/Sub.

   - Qualcomm BAM-DMUX WWAN - driver for data channels of modems
     integrated into many older Qualcomm SoCs, e.g. MSM8916 or MSM8974
     (qcom_bam_dmux).

   - Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch driver
     with support for bridging, VLANs and multicast forwarding
     (lan966x).

   - iwlmei driver for co-operating between Intel's WiFi driver and
     Intel's Active Management Technology (AMT) devices.

   - mse102x - Vertexcom MSE102x Homeplug GreenPHY chips

   - Bluetooth:
      - MediaTek MT7921 SDIO devices
      - Foxconn MT7922A
      - Realtek RTL8852AE

  Drivers
  -------

   - Significantly improve performance in the datapaths of: lan78xx,
     ax88179_178a, lantiq_xrx200, bnxt.

   - Intel Ethernet NICs:
      - igb: support PTP/time PEROUT and EXTTS SDP functions on
        82580/i354/i350 adapters
      - ixgbevf: new PF -> VF mailbox API which avoids the risk of
        mailbox corruption with ESXi
      - iavf: support configuration of VLAN features of finer
        granularity, stacked tags and filtering
      - ice: PTP support for new E822 devices with sub-ns precision
      - ice: support firmware activation without reboot

   - Mellanox Ethernet NICs (mlx5):
      - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
      - support TC forwarding when tunnel encap and decap happen between
        two ports of the same NIC
      - dynamically size and allow disabling various features to save
        resources for running in embedded / SmartNIC scenarios

   - Broadcom Ethernet NICs (bnxt):
      - use page frag allocator to improve Rx performance
      - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool

   - Other Ethernet NICs:
      - amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support

   - Microsoft cloud/virtual NIC (mana):
      - add XDP support (PASS, DROP, TX)

   - Mellanox Ethernet switches (mlxsw):
      - initial support for Spectrum-4 ASICs
      - VxLAN with IPv6 underlay

   - Marvell Ethernet switches (prestera):
      - support flower flow templates
      - add basic IP forwarding support

   - NXP embedded Ethernet switches (ocelot & felix):
      - support Per-Stream Filtering and Policing (PSFP)
      - enable cut-through forwarding between ports by default
      - support FDMA to improve packet Rx/Tx to CPU

   - Other embedded switches:
      - hellcreek: improve trapping management (STP and PTP) packets
      - qca8k: support link aggregation and port mirroring

   - Qualcomm 802.11ax WiFi (ath11k):
      - qca6390, wcn6855: enable 802.11 power save mode in station mode
      - BSS color change support
      - WCN6855 hw2.1 support
      - 11d scan offload support
      - scan MAC address randomization support
      - full monitor mode, only supported on QCN9074
      - qca6390/wcn6855: report signal and tx bitrate
      - qca6390: rfkill support
      - qca6390/wcn6855: regdb.bin support

   - Intel WiFi (iwlwifi):
      - support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS)
        in cooperation with the BIOS
      - support for Optimized Connectivity Experience (OCE) scan
      - support firmware API version 68
      - lots of preparatory work for the upcoming Bz device family

   - MediaTek WiFi (mt76):
      - Specific Absorption Rate (SAR) support
      - mt7921: 160 MHz channel support

   - RealTek WiFi (rtw88):
      - Specific Absorption Rate (SAR) support
      - scan offload

   - Other WiFi NICs
      - ath10k: support fetching (pre-)calibration data from nvmem
      - brcmfmac: configure keep-alive packet on suspend
      - wcn36xx: beacon filter support"

* tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2048 commits)
  tcp: tcp_send_challenge_ack delete useless param `skb`
  net/qla3xxx: Remove useless DMA-32 fallback configuration
  rocker: Remove useless DMA-32 fallback configuration
  hinic: Remove useless DMA-32 fallback configuration
  lan743x: Remove useless DMA-32 fallback configuration
  net: enetc: Remove useless DMA-32 fallback configuration
  cxgb4vf: Remove useless DMA-32 fallback configuration
  cxgb4: Remove useless DMA-32 fallback configuration
  cxgb3: Remove useless DMA-32 fallback configuration
  bnx2x: Remove useless DMA-32 fallback configuration
  et131x: Remove useless DMA-32 fallback configuration
  be2net: Remove useless DMA-32 fallback configuration
  vmxnet3: Remove useless DMA-32 fallback configuration
  bna: Simplify DMA setting
  net: alteon: Simplify DMA setting
  myri10ge: Simplify DMA setting
  qlcnic: Simplify DMA setting
  net: allwinner: Fix print format
  page_pool: remove spinlock in page_pool_refill_alloc_cache()
  amt: fix wrong return type of amt_send_membership_update()
  ...
2022-01-10 19:06:09 -08:00
Linus Torvalds
9bcbf894b6 media updates for v5.17-rc1
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE+QmuaPwR3wnBdVwACF8+vY7k4RUFAmHPqrMACgkQCF8+vY7k
 4RUM2g//VzdGU6kq19k7++N7ewGV1VhTnwAXCzdjjMuigdYpTnH/i2fIN/3BS2Mw
 RQVTc3Ys26SGdaKCPsMONKjNwQk62hiaQGW4gwnCZ9Me+hgR3e6z67rJa6XWpKuw
 aH81Z+XFfyn3Oo8qu7jqCABRCWXfKuxs8Vmc8XdcjvrqlREpiQ0c10oXiboeOoWE
 RmVPrnJ94pK8J859dO01cRkDCCo2G9AL9vnBHVA5050VEskSb20+8EmJQDfmkgsO
 Itd6JpCK97QTH5gtF44iO3CDWi5f3x9ODWJkQXJEZRAiKORZkcQUpCOXafQjb2vN
 YgxO86F/sD7XlhZ3V5AjvztZuQPTmnLNcgnrIVUa7iCAWDft1xBIsjQ+BxV9uROe
 g3/Yl6J+Y2Qi+wfAVhCJ94pfA2ZCIoN/+loVi9TQ22X4+tbr6+K4qWu3y1eu9bTW
 TYVD//nUMZz/ljFBAgj4OM6RhtMCqI6c2IB3weOEey5wcR641M0mVHPmzgNo5VMQ
 mFYkRXwrHrbsWWXxRB9yEJKK6P0MsDWAvoD8QBFvaOmqEBr7gG4ET44G76lcFoyD
 Tks4+MZQFQvzas/Xd/GndFlD/T4Cyn+CoPLP1SaP3R01mldoSA39o/cVZlHbZgjI
 8zFnPCAsE2C/w+Oko/vGLQZyyetJ8PzohPmlMy8XPaejYulHQqA=
 =cCwW
 -----END PGP SIGNATURE-----

Merge tag 'media/v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - New sensor driver: ov5693

 - A new driver for STM32 Chrom-ART Accelerator

 - Added V4L2 core helper functions for VP9 codec

 - Hantro driver has gained support for VP9 codecs

 - Added support for Maxim MAX96712 Quad GMSL2 Deserializer

 - The staging atomisp driver has gained lots of improvements, fixes and
   cleanups. It now works with userptr

 - Lots of random driver improvements as usual

* tag 'media/v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (397 commits)
  media: ipu3-cio2: Add support for instantiating i2c-clients for VCMs
  media: ipu3-cio2: Call cio2_bridge_init() before anything else
  media: ipu3-cio2: Defer probing until the PMIC is fully setup
  media: hantro: Add support for Allwinner H6
  media: dt-bindings: allwinner: document H6 Hantro G2 binding
  media: hantro: Convert imx8m_vpu_g2_irq to helper
  media: hantro: move postproc enablement for old cores
  media: hantro: vp9: add support for legacy register set
  media: hantro: vp9: use double buffering if needed
  media: hantro: add support for reset lines
  media: hantro: Fix probe func error path
  media: i2c: hi846: use pm_runtime_force_suspend/resume for system suspend
  media: i2c: hi846: check return value of regulator_bulk_disable()
  media: hi556: Support device probe in non-zero ACPI D state
  media: ov5675: Support device probe in non-zero ACPI D state
  media: imx208: Support device probe in non-zero ACPI D state
  media: ov2740: support device probe in non-zero ACPI D state
  media: ov5670: Support device probe in non-zero ACPI D state
  media: ov8856: support device probe in non-zero ACPI D state
  media: ov8865: Disable only enabled regulators on error path
  ...
2022-01-10 18:55:43 -08:00
Linus Torvalds
8d0749b4f8 drm for 5.17-rc1
core:
 - add privacy screen support
 - move nomodeset option into drm subsystem
 - clean up nomodeset handling in drivers
 - make drm_irq.c legacy
 - fix stack_depot name conflicts
 - remove DMA_BUF_SET_NAME ioctl restrictions
 - sysfs: send hotplug event
 - replace several DRM_* logging macros with drm_*
 - move hashtable to legacy code
 - add error return from gem_create_object
 - cma-helper: improve interfaces, drop CONFIG_DRM_KMS_CMA_HELPER
 - kernel.h related include cleanups
 - support XRGB2101010 source buffers
 
 ttm:
 - don't include drm hashtable
 - stop pruning fences after wait
 - documentation updates
 
 dma-buf:
 - add dma_resv selftest
 - add debugfs helpers
 - remove dma_resv_get_excl_unlocked
 - documentation
 - make fences mandatory in dma_resv_add_excl_fence
 
 dp:
 - add link training delay helpers
 
 gem:
 - link shmem/cma helpers into separate modules
 - use dma_resv iteratior
 - import dma-buf namespace into gem helper modules
 
 scheduler:
 - fence grab fix
 - lockdep fixes
 
 bridge:
 - switch to managed MIPI DSI helpers
 - register and attach during probe fixes
 - convert to YAML in several places.
 
 panel:
 - add bunch of new panesl
 
 simpledrm:
 - support FB_DAMAGE_CLIPS
 - support virtual screen sizes
 - add Apple M1 support
 
 amdgpu:
 - enable seamless boot for DCN 3.01
 - runtime PM fixes
 - use drm_kms_helper_connector_hotplug_event
 - get all fences at once
 - use generic drm fb helpers
 - PSR/DPCD/LTTPR/DSC/PM/RAS/OLED/SRIOV fixes
 - add smart trace buffer (STB) for supported GPUs
 - display debugfs entries
 - new SMU debug option
 - Documentation update
 
 amdkfd:
 - IP discovery enumeration refactor
 - interface between driver fixes
 - SVM fixes
 - kfd uapi header to define some sysfs bitfields.
 
 i915:
 - support VESA panel backlights
 - enable ADL-P by default
 - add eDP privacy screen support
 - add Raptor Lake S (RPL-S) support
 - DG2 page table support
 - lots of GuC/HuC fw refactoring
 - refactored i915->gt interfaces
 - CD clock squashing support
 - enable 10-bit gamma support
 - update ADL-P DMC fw to v2.14
 - enable runtime PM autosuspend by default
 - ADL-P DSI support
 - per-lane DP drive settings for ICL+
 - add support for pipe C/D DMC firmware
 - Atomic gamma LUT updates
 - remove CCS FB stride restrictions on ADL-P
 - VRR platform support for display 11
 - add support for display audio codec keepalive
 - lots of display refactoring
 - fix runtime PM handling during PXP suspend
 - improved eviction performance with async TTM moves
 - async VMA unbinding improvements
 - VMA locking refactoring
 - improved error capture robustness
 - use per device iommu checks
 - drop bits stealing from i915_sw_fence function ptr
 - remove dma_resv_prune
 - add IC cache invalidation on DG2
 
 nouveau:
 - crc fixes
 - validate LUTs in atomic check
 - set HDMI AVI RGB quant to full
 
 tegra:
 - buffer objects reworks for dma-buf compat
 - NVDEC driver uAPI support
 - power management improvements
 
 etnaviv:
 - IOMMU enabled system support
 - fix > 4GB command buffer mapping
 - close a DoS vector
 - fix spurious GPU resets
 
 ast:
 - fix i2c initialization
 
 rcar-du:
 - DSI output support
 
 exynos:
 - replace legacy gpio interface
 - implement generic GEM object mmap
 
 msm:
 - dpu plane state cleanup in prep for multirect
 - dpu debugfs cleanups
 - dp support for sc7280
 - a506 support
 - removal of struct_mutex
 - remove old eDP sub-driver
 
 anx7625:
 - support MIPI DSI input
 - support HDMI audio
 - fix reading EDID
 
 lvds:
 - fix bridge DT bindings
 
 megachips:
 - probe both bridges before registering
 
 dw-hdmi:
 - allow interlace on bridge
 
 ps8640:
 - enable runtime PM
 - support aux-bus
 
 tx358768:
 - enable reference clock
 - add pulse mode support
 
 ti-sn65dsi86:
 - use regmap bulk write
 - add PWM support
 
 etnaviv:
 - get all fences at once
 
 gma500:
 - gem object cleanups
 
 kmb:
 - enable fb console
 
 radeon:
 - use dma_resv_wait_timeout
 
 rockchip:
 - add DSP hold timeout
 - suspend/resume fixes
 - PLL clock fixes
 - implement mmap in GEM object functions
 - use generic fbdev emulation
 
 sun4i:
 - use CMA helpers without vmap support
 
 vc4:
 - fix HDMI-CEC hang with display is off
 - power on HDMI controller while disabling
 - support 4K@60Hz modes
 - support 10-bit YUV 4:2:0 output
 
 vmwgfx:
 - fix leak on probe errors
 - fail probing on broken hosts
 - new placement for MOB page tables
 - hide internal BOs from userspace
 - implement GEM support
 - implement GL 4.3 support
 
 virtio:
 - overflow fixes
 
 xen:
 - implement mmap as GEM object function
 
 omapdrm:
 - fix scatterlist export
 - support virtual planes
 
 mediatek:
 - MT8192 support
 - CMDQ refinement
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmHX1vMACgkQDHTzWXnE
 hr6rAw/9ES5RO5N3Ku9foFk1CI9bqy1Kh663KLkkEc+rDdhKpiZbBnAsrKkZ9sGu
 fNuHmWNN5nWXtDSOqHWuslt3F7Gh+qEBQtlkqC9mZsBm3bWB0aJK6E4QaJxfeSaK
 ta6AmyGx8DaV+C69i86dnemQurYSDVjROd7LDPKnCU0Fye/JxiXSXQmXksKMFVxd
 x5vmO9yfeDSg3EF+u1yB6nJNUYZBV0vhrAfjPqxPCRBXuQc7akuaglE/SFwlGnEk
 vn0GjVHEQcRTqYKrHr64xvQxIoKXcJP0pkDUyT7KYCsyj8GJkvxkb7/ls5pp5DvL
 SwyNg3J3vwUVP6w6GEvzf3ffG720qqUZvCbvLmE+A/t2DhGILiAm+HXSo43PTOW8
 uagT7Gxma8dy8EovjSxioS9HPX8Gcu+S+XYavgOsevOZ7oeEt4f4TLW7LXsw9d6y
 75FrMhiUpreab5hAh8Le0swuLYZHjdnJRdjSTqZJ/T6VdTdVftLT6IfwvSDx5CHy
 cWuufgcAjd7xVTXFquHWYXWLTQkiSMGf1M02jx9IWolTd4Cm41LNBhqMEDHZLHJD
 7ngGgoaREVDQ+MqjG90yfIwJFIpJPI3YOaHLi/Kznga+iDzFY6cyOQWW2vX7ZdY5
 7+LJWsgGT8Feb7/bzD5hX1mYqJLxh1pWUIaqIKMl+7LJL7gTVU8=
 =MByd
 -----END PGP SIGNATURE-----

Merge tag 'drm-next-2022-01-07' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Highlights are support for privacy screens found in new laptops, a
  bunch of nomodeset refactoring, and i915 enables ADL-P systems by
  default, while starting to add RPL-S support.

  vmwgfx adds GEM and support for OpenGL 4.3 features in userspace.

  Lots of internal refactorings around dma reservations, and lots of
  driver refactoring as well.

  Summary:

  core:
   - add privacy screen support
   - move nomodeset option into drm subsystem
   - clean up nomodeset handling in drivers
   - make drm_irq.c legacy
   - fix stack_depot name conflicts
   - remove DMA_BUF_SET_NAME ioctl restrictions
   - sysfs: send hotplug event
   - replace several DRM_* logging macros with drm_*
   - move hashtable to legacy code
   - add error return from gem_create_object
   - cma-helper: improve interfaces, drop CONFIG_DRM_KMS_CMA_HELPER
   - kernel.h related include cleanups
   - support XRGB2101010 source buffers

  ttm:
   - don't include drm hashtable
   - stop pruning fences after wait
   - documentation updates

  dma-buf:
   - add dma_resv selftest
   - add debugfs helpers
   - remove dma_resv_get_excl_unlocked
   - documentation
   - make fences mandatory in dma_resv_add_excl_fence

  dp:
   - add link training delay helpers

  gem:
   - link shmem/cma helpers into separate modules
   - use dma_resv iteratior
   - import dma-buf namespace into gem helper modules

  scheduler:
   - fence grab fix
   - lockdep fixes

  bridge:
   - switch to managed MIPI DSI helpers
   - register and attach during probe fixes
   - convert to YAML in several places.

  panel:
   - add bunch of new panesl

  simpledrm:
   - support FB_DAMAGE_CLIPS
   - support virtual screen sizes
   - add Apple M1 support

  amdgpu:
   - enable seamless boot for DCN 3.01
   - runtime PM fixes
   - use drm_kms_helper_connector_hotplug_event
   - get all fences at once
   - use generic drm fb helpers
   - PSR/DPCD/LTTPR/DSC/PM/RAS/OLED/SRIOV fixes
   - add smart trace buffer (STB) for supported GPUs
   - display debugfs entries
   - new SMU debug option
   - Documentation update

  amdkfd:
   - IP discovery enumeration refactor
   - interface between driver fixes
   - SVM fixes
   - kfd uapi header to define some sysfs bitfields.

  i915:
   - support VESA panel backlights
   - enable ADL-P by default
   - add eDP privacy screen support
   - add Raptor Lake S (RPL-S) support
   - DG2 page table support
   - lots of GuC/HuC fw refactoring
   - refactored i915->gt interfaces
   - CD clock squashing support
   - enable 10-bit gamma support
   - update ADL-P DMC fw to v2.14
   - enable runtime PM autosuspend by default
   - ADL-P DSI support
   - per-lane DP drive settings for ICL+
   - add support for pipe C/D DMC firmware
   - Atomic gamma LUT updates
   - remove CCS FB stride restrictions on ADL-P
   - VRR platform support for display 11
   - add support for display audio codec keepalive
   - lots of display refactoring
   - fix runtime PM handling during PXP suspend
   - improved eviction performance with async TTM moves
   - async VMA unbinding improvements
   - VMA locking refactoring
   - improved error capture robustness
   - use per device iommu checks
   - drop bits stealing from i915_sw_fence function ptr
   - remove dma_resv_prune
   - add IC cache invalidation on DG2

  nouveau:
   - crc fixes
   - validate LUTs in atomic check
   - set HDMI AVI RGB quant to full

  tegra:
   - buffer objects reworks for dma-buf compat
   - NVDEC driver uAPI support
   - power management improvements

  etnaviv:
   - IOMMU enabled system support
   - fix > 4GB command buffer mapping
   - close a DoS vector
   - fix spurious GPU resets

  ast:
   - fix i2c initialization

  rcar-du:
   - DSI output support

  exynos:
   - replace legacy gpio interface
   - implement generic GEM object mmap

  msm:
   - dpu plane state cleanup in prep for multirect
   - dpu debugfs cleanups
   - dp support for sc7280
   - a506 support
   - removal of struct_mutex
   - remove old eDP sub-driver

  anx7625:
   - support MIPI DSI input
   - support HDMI audio
   - fix reading EDID

  lvds:
   - fix bridge DT bindings

  megachips:
   - probe both bridges before registering

  dw-hdmi:
   - allow interlace on bridge

  ps8640:
   - enable runtime PM
   - support aux-bus

  tx358768:
   - enable reference clock
   - add pulse mode support

  ti-sn65dsi86:
   - use regmap bulk write
   - add PWM support

  etnaviv:
   - get all fences at once

  gma500:
   - gem object cleanups

  kmb:
   - enable fb console

  radeon:
   - use dma_resv_wait_timeout

  rockchip:
   - add DSP hold timeout
   - suspend/resume fixes
   - PLL clock fixes
   - implement mmap in GEM object functions
   - use generic fbdev emulation

  sun4i:
   - use CMA helpers without vmap support

  vc4:
   - fix HDMI-CEC hang with display is off
   - power on HDMI controller while disabling
   - support 4K@60Hz modes
   - support 10-bit YUV 4:2:0 output

  vmwgfx:
   - fix leak on probe errors
   - fail probing on broken hosts
   - new placement for MOB page tables
   - hide internal BOs from userspace
   - implement GEM support
   - implement GL 4.3 support

  virtio:
   - overflow fixes

  xen:
   - implement mmap as GEM object function

  omapdrm:
   - fix scatterlist export
   - support virtual planes

  mediatek:
   - MT8192 support
   - CMDQ refinement"

* tag 'drm-next-2022-01-07' of git://anongit.freedesktop.org/drm/drm: (1241 commits)
  drm/amdgpu: no DC support for headless chips
  drm/amd/display: fix dereference before NULL check
  drm/amdgpu: always reset the asic in suspend (v2)
  drm/amdgpu: put SMU into proper state on runpm suspending for BOCO capable platform
  drm/amd/display: Fix the uninitialized variable in enable_stream_features()
  drm/amdgpu: fix runpm documentation
  amdgpu/pm: Make sysfs pm attributes as read-only for VFs
  drm/amdgpu: save error count in RAS poison handler
  drm/amdgpu: drop redundant semicolon
  drm/amd/display: get and restore link res map
  drm/amd/display: support dynamic HPO DP link encoder allocation
  drm/amd/display: access hpo dp link encoder only through link resource
  drm/amd/display: populate link res in both detection and validation
  drm/amd/display: define link res and make it accessible to all link interfaces
  drm/amd/display: 3.2.167
  drm/amd/display: [FW Promotion] Release 0.0.98
  drm/amd/display: Undo ODM combine
  drm/amd/display: Add reg defs for DCN303
  drm/amd/display: Changed pipe split policy to allow for multi-display pipe split
  drm/amd/display: Set optimize_pwr_state for DCN31
  ...
2022-01-10 12:58:46 -08:00
Namjae Jeon
1ed147e29e exfat: move super block magic number to magic.h
Move exfat superblock magic number from local definition to magic.h.
It is also needed by userspace programs that call fstatfs().

Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-01-10 11:00:03 +09:00
Masahiro Yamada
50a483405c kbuild: move headers_check.pl to usr/include/
This script is only used by usr/include/Makefile. Make it local to
the directory.

Update the comment in include/uapi/linux/soundcard.h because
'make headers_check' is no longer functional.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-01-08 17:41:00 +09:00
David Woodhouse
14243b3871 KVM: x86/xen: Add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery
This adds basic support for delivering 2 level event channels to a guest.

Initially, it only supports delivery via the IRQ routing table, triggered
by an eventfd. In order to do so, it has a kvm_xen_set_evtchn_fast()
function which will use the pre-mapped shared_info page if it already
exists and is still valid, while the slow path through the irqfd_inject
workqueue will remap the shared_info page if necessary.

It sets the bits in the shared_info page but not the vcpu_info; that is
deferred to __kvm_xen_has_interrupt() which raises the vector to the
appropriate vCPU.

Add a 'verbose' mode to xen_shinfo_test while adding test cases for this.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20211210163625.2886-5-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-07 10:44:45 -05:00
Coco Li
eac1b93c14 gro: add ability to control gro max packet size
Eric Dumazet suggested to allow users to modify max GRO packet size.

We have seen GRO being disabled by users of appliances (such as
wifi access points) because of claimed bufferbloat issues,
or some work arounds in sch_cake, to split GRO/GSO packets.

Instead of disabling GRO completely, one can chose to limit
the maximum packet size of GRO packets, depending on their
latency constraints.

This patch adds a per device gro_max_size attribute
that can be changed with ip link command.

ip link set dev eth0 gro_max_size 16000

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Coco Li <lixiaoyan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-06 12:27:05 +00:00
David S. Miller
d093d17c95 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2022-01-06

1) Fix some clang_analyzer warnings about never read variables.
   From luo penghao.

2) Check for pols[0] only once in xfrm_expand_policies().
   From Jean Sacren.

3) The SA curlft.use_time was updated only on SA cration time.
   Update whenever the SA is used. From Antony Antony

4) Add support for SM3 secure hash.
   From Xu Jia.

5) Add support for SM4 symmetric cipher algorithm.
   From Xu Jia.

6) Add a rate limit for SA mapping change messages.
   From Antony Antony.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-06 11:54:20 +00:00
Anup Patel
a457fd5660 RISC-V: KVM: Add VM capability to allow userspace get GPA bits
The number of GPA bits supported for a RISC-V Guest/VM is based on the
MMU mode used by the G-stage translation. The KVM RISC-V will detect and
use the best possible MMU mode for the G-stage in kvm_arch_init().

We add a generic VM capability KVM_CAP_VM_GPA_BITS which can be used by
the KVM userspace to get the number of GPA (guest physical address) bits
supported for a Guest/VM.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-and-tested-by: Atish Patra <atishp@rivosinc.com>
2022-01-06 15:16:58 +05:30
Vincent Mailhol
383f0993fc can: netlink: report the CAN controller mode supported flags
Currently, the CAN netlink interface provides no easy ways to check
the capabilities of a given controller. The only method from the
command line is to try each CAN_CTRLMODE_* individually to check
whether the netlink interface returns an -EOPNOTSUPP error or not
(alternatively, one may find it easier to directly check the source
code of the driver instead...)

This patch introduces a method for the user to check both the
supported and the static capabilities. The proposed method introduces
a new IFLA nest: IFLA_CAN_CTRLMODE_EXT which extends the current
IFLA_CAN_CTRLMODE. This is done to guaranty a full forward and
backward compatibility between the kernel and the user land
applications.

The IFLA_CAN_CTRLMODE_EXT nest contains one single entry:
IFLA_CAN_CTRLMODE_SUPPORTED. Because this entry is only used in one
direction: kernel to userland, no new struct nla_policy are
introduced.

Below table explains how IFLA_CAN_CTRLMODE_SUPPORTED (hereafter:
"supported") and can_ctrlmode::flags (hereafter: "flags") allow us to
identify both the supported and the static capabilities, when masked
with any of the CAN_CTRLMODE_* bit flags:

 supported &	flags &		Controller capabilities
 CAN_CTRLMODE_*	CAN_CTRLMODE_*
 -----------------------------------------------------------------------
 false		false		Feature not supported (always disabled)
 false		true		Static feature (always enabled)
 true		false		Feature supported but disabled
 true		true		Feature supported and enabled

Link: https://lore.kernel.org/all/20211213160226.56219-5-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-05 12:09:06 +01:00
Dave Jiang
403a2e2365 dmaengine: idxd: change MSIX allocation based on per wq activation
Change the driver where WQ interrupt is requested only when wq is being
enabled. This new scheme set things up so that request_threaded_irq() is
only called when a kernel wq type is being enabled. This also sets up for
future interrupt request where different interrupt handler such as wq
occupancy interrupt can be setup instead of the wq completion interrupt.

Not calling request_irq() until the WQ actually needs an irq also prevents
wasting of CPU irq vectors on x86 systems, which is a limited resource.

idxd_flush_pending_descs() is moved to device.c since descriptor flushing
is now part of wq disable rather than shutdown().

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/163942149487.2412839.6691222855803875848.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-01-05 13:11:22 +05:30
Felix Fietkau
5bc03b28ec nl80211: clarify comment for mesh PLINK_BLOCKED state
When a mesh link is in blocked state, it is very useful to still allow
auth requests from the peer to re-establish it.
When a remote node is power cycled, the peer state can easily end up
in blocked state if multiple auth attempts are performed. Since this
can lead to several minutes of downtime, we should accept auth attempts
of the peer after it has come back.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20211220105147.88625-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-01-04 15:50:23 +01:00
Joerg Roedel
66dc1b791c Merge branches 'arm/smmu', 'virtio', 'x86/amd', 'x86/vt-d' and 'core' into next 2022-01-04 10:33:45 +01:00
Filipe Manana
ccae4a19c9 btrfs: remove no longer needed logic for replaying directory deletes
Now that we log only dir index keys when logging a directory, we no longer
need to deal with dir item keys in the log replay code for replaying
directory deletes. This is also true for the case when we replay a log
tree created by a kernel that still logs dir items.

So remove the remaining code of the replay of directory deletes algorithm
that deals with dir item keys.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2022-01-03 15:09:42 +01:00
Greg Kroah-Hartman
824adf37ee Merge 5.16-rc8 into char-misc-next
We need the fixes in here as well for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-03 13:44:38 +01:00
Tony Lu
79d39fc503 net/smc: Add netlink net namespace support
This adds net namespace ID to diag of linkgroup, helps us to distinguish
different namespaces, and net_cookie is unique in the whole system.

Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02 12:07:39 +00:00
David S. Miller
e63a023489 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2021-12-30

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

We've added 72 non-merge commits during the last 20 day(s) which contain
a total of 223 files changed, 3510 insertions(+), 1591 deletions(-).

The main changes are:

1) Automatic setrlimit in libbpf when bpf is memcg's in the kernel, from Andrii.

2) Beautify and de-verbose verifier logs, from Christy.

3) Composable verifier types, from Hao.

4) bpf_strncmp helper, from Hou.

5) bpf.h header dependency cleanup, from Jakub.

6) get_func_[arg|ret|arg_cnt] helpers, from Jiri.

7) Sleepable local storage, from KP.

8) Extend kfunc with PTR_TO_CTX, PTR_TO_MEM argument support, from Kumar.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31 14:35:40 +00:00
Jakub Kicinski
aec53e60e0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
  commit 077cdda764 ("net/mlx5e: TC, Fix memory leak with rules with internal port")
  commit 31108d142f ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'")
  commit 4390c6edc0 ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'")
  https://lore.kernel.org/all/20211229065352.30178-1-saeed@kernel.org/

net/smc/smc_wr.c
  commit 49dc9013e3 ("net/smc: Use the bitmap API when applicable")
  commit 349d43127d ("net/smc: fix kernel panic caused by race of smc_sock")
  bitmap_zero()/memset() is removed by the fix

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-30 12:12:12 -08:00
Linus Torvalds
74c78b4291 Networking fixes for 5.16-rc8, including fixes from.. Santa?
Current release - regressions:
 
  - xsk: initialise xskb free_list_node, fixup for a -rc7 fix
 
 Current release - new code bugs:
 
  - mlx5: handful of minor fixes:
    - use first online CPU instead of hard coded CPU
    - fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'
    - fix skb memory leak when TC classifier action offloads are
      disabled
    - fix memory leak with rules with internal OvS port
 
 Previous releases - regressions:
 
  - igc: do not enable crosstimestamping for i225-V models
 
 Previous releases - always broken:
 
  - udp: use datalen to cap ipv6 udp max gso segments
 
  - fix use-after-free in tw_timer_handler due to early free of stats
 
  - smc: fix kernel panic caused by race of smc_sock
 
  - smc: don't send CDC/LLC message if link not ready, avoid timeouts
 
  - sctp: use call_rcu to free endpoint, avoid UAF in sock diag
 
  - bridge: mcast: add and enforce query interval minimum
 
  - usb: pegasus: do not drop long Ethernet frames
 
  - mlx5e: fix ICOSQ recovery flow for XSK
 
  - nfc: uapi: use kernel size_t to fix user-space builds
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmHN9xUACgkQMUZtbf5S
 Irt86w/9HC6nHXaEmcBoLhBp7k39Kbs5s/og68+ALgtQt/XRlQsiC5HuYqLQREQ0
 kqGEyp0JJyLuAM23CcWM7s8JhEAcmyHiGFhdCtrTwNltFLE0Fvd7XYPtG8VXHtVE
 bEbMu3cmafKtyn5EueFp+Hfl1yA0u5LrX6lDZfLgEgYDjLVSUJCXg2B+uiTIdhON
 UuKdXIHrBWX0aZpCHeMZ0/Ksdw9oOq7dqcaKi62yQAWkXpQMAUlFJ9OiQXksdlqY
 leBao3gA8F9J8KK39GfDNyn1Gt8kbN6d/pwi3+IVM2KTHk1wlyLfelDauTG7iUOl
 FDLuzrKZtMsyAXa5zxeHvQlV2f7CeXsOmpLhGnO0/FSCIc9WvkBFnuq49ESur0Lq
 3tu5vrxoIW0In1DWy2HvWCflV3eYatq9eGzAhymkAiBcKrBhJyEE1IH4hYPzRD4x
 3ab8Ma0zKzbRum37izNfW2X9hpJTSmlXdVsSP1L6O6hq1iSZhQnQ0dWP8KXw222u
 CpaqfepkxQMGj+mQss+nIltw8OQnj84dJOajuH/oo4Le4lUciyPizwAo45Muv7D7
 2MDd/GFs3yHT8gglxSEjwNg8HKooI93Zc11uEt0KJDTXMlmnCLasTwkKBh+CD970
 +PyKuaNDE1k6rav01bcteOEXFOhnDjvU3Kur1bnzo5OXKZ5cbng=
 =ucH7
 -----END PGP SIGNATURE-----

Merge tag 'net-5.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from.. Santa?

  No regressions on our radar at this point. The igc problem fixed here
  was the last one I was tracking but it was broken in previous
  releases, anyway. Mostly driver fixes and a couple of largish SMC
  fixes.

  Current release - regressions:

   - xsk: initialise xskb free_list_node, fixup for a -rc7 fix

  Current release - new code bugs:

   - mlx5: handful of minor fixes:

   - use first online CPU instead of hard coded CPU

   - fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'

   - fix skb memory leak when TC classifier action offloads are disabled

   - fix memory leak with rules with internal OvS port

  Previous releases - regressions:

   - igc: do not enable crosstimestamping for i225-V models

  Previous releases - always broken:

   - udp: use datalen to cap ipv6 udp max gso segments

   - fix use-after-free in tw_timer_handler due to early free of stats

   - smc: fix kernel panic caused by race of smc_sock

   - smc: don't send CDC/LLC message if link not ready, avoid timeouts

   - sctp: use call_rcu to free endpoint, avoid UAF in sock diag

   - bridge: mcast: add and enforce query interval minimum

   - usb: pegasus: do not drop long Ethernet frames

   - mlx5e: fix ICOSQ recovery flow for XSK

   - nfc: uapi: use kernel size_t to fix user-space builds"

* tag 'net-5.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
  fsl/fman: Fix missing put_device() call in fman_port_probe
  selftests: net: using ping6 for IPv6 in udpgro_fwd.sh
  Documentation: fix outdated interpretation of ip_no_pmtu_disc
  net/ncsi: check for error return from call to nla_put_u32
  net: bridge: mcast: fix br_multicast_ctx_vlan_global_disabled helper
  net: fix use-after-free in tw_timer_handler
  selftests: net: Fix a typo in udpgro_fwd.sh
  selftests/net: udpgso_bench_tx: fix dst ip argument
  net: bridge: mcast: add and enforce startup query interval minimum
  net: bridge: mcast: add and enforce query interval minimum
  ipv6: raw: check passed optlen before reading
  xsk: Initialise xskb free_list_node
  net/mlx5e: Fix wrong features assignment in case of error
  net/mlx5e: TC, Fix memory leak with rules with internal port
  ionic: Initialize the 'lif->dbid_inuse' bitmap
  igc: Fix TX timestamp support for non-MSI-X platforms
  igc: Do not enable crosstimestamping for i225-V models
  net/smc: fix kernel panic caused by race of smc_sock
  net/smc: don't send CDC/LLC message if link not ready
  NFC: st21nfca: Fix memory leak in device probe and remove
  ...
2021-12-30 11:12:12 -08:00
Hangbin Liu
1bb412d46c net_tstamp: define new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX
As we defined the new hwtstamp_config flag HWTSTAMP_FLAG_BONDED_PHC_INDEX
as enum, it's not easy for userspace program to check if the flag is
supported when build.

Let's define the new flag so user space could build it on old kernel with
ifdef check.

Fixes: 9c9211a3fc ("net_tstamp: add new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-29 12:31:36 -08:00
Chen Yu
b0013e037a ACPI: Introduce Platform Firmware Runtime Telemetry driver
This driver allows user space to fetch telemetry data from the
firmware with the help of the Platform Firmware Runtime Telemetry
interface.

Both PFRU and PFRT are based on ACPI _DSM interfaces located under
special device objects in the ACPI Namespace, but these interfaces
are different from each other, so it is better to provide a separate
driver from each of them, even though they share some common
definitions and naming conventions.

Tested-by: Hongyu Ning <hongyu.ning@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-12-27 17:12:58 +01:00
Chen Yu
0db89fa243 ACPI: Introduce Platform Firmware Runtime Update device driver
Introduce the pfr_update driver which can be used for Platform Firmware
Runtime code injection and driver update [1].

The user is expected to provide the EFI capsule, and pass it to the
driver by writing the capsule to a device special file. The capsule
is transferred by the driver to the platform firmware with the help
of an ACPI _DSM method under the special ACPI Platform Firmware
Runtime Update device (INTC1080), and the actual firmware update is
carried out by the low-level Management Mode code in the platform
firmware.

This change allows certain pieces of the platform firmware to be
updated on the fly while the system is running (runtime) without the
need to restart it, which is key in the cases when the system needs to
be available 100% of the time and it cannot afford the downtime related
to restarting it, or when the work carried out by the system is
particularly important, so it cannot be interrupted, and it is not
practical to wait until it is complete.

Link: https://uefi.org/sites/default/files/resources/Intel_MM_OS_Interface_Spec_Rev100.pdf # [1]
Tested-by: Hongyu Ning <hongyu.ning@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-12-27 17:12:58 +01:00
Krzysztof Kozlowski
79b69a8370 nfc: uapi: use kernel size_t to fix user-space builds
Fix user-space builds if it includes /usr/include/linux/nfc.h before
some of other headers:

  /usr/include/linux/nfc.h:281:9: error: unknown type name ‘size_t’
    281 |         size_t service_name_len;
        |         ^~~~~~

Fixes: d646960f79 ("NFC: Initial LLCP support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-27 14:58:37 +00:00
Dmitry V. Levin
7175f02c4e uapi: fix linux/nfc.h userspace compilation errors
Replace sa_family_t with __kernel_sa_family_t to fix the following
linux/nfc.h userspace compilation errors:

/usr/include/linux/nfc.h:266:2: error: unknown type name 'sa_family_t'
  sa_family_t sa_family;
/usr/include/linux/nfc.h:274:2: error: unknown type name 'sa_family_t'
  sa_family_t sa_family;

Fixes: 23b7869c0f ("NFC: add the NFC socket raw protocol")
Fixes: d646960f79 ("NFC: Initial LLCP support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-27 14:58:03 +00:00
Antony Antony
4e484b3e96 xfrm: rate limit SA mapping change message to user space
Kernel generates mapping change message, XFRM_MSG_MAPPING,
when a source port chage is detected on a input state with UDP
encapsulation set.  Kernel generates a message for each IPsec packet
with new source port.  For a high speed flow per packet mapping change
message can be excessive, and can overload the user space listener.

Introduce rate limiting for XFRM_MSG_MAPPING message to the user space.

The rate limiting is configurable via netlink, when adding a new SA or
updating it. Use the new attribute XFRMA_MTIMER_THRESH in seconds.

v1->v2 change:
	update xfrm_sa_len()

v2->v3 changes:
	use u32 insted unsigned long to reduce size of struct xfrm_state
	fix xfrm_ompat size Reported-by: kernel test robot <lkp@intel.com>
	accept XFRM_MSG_MAPPING only when XFRMA_ENCAP is present

Co-developed-by: Thomas Egerer <thomas.egerer@secunet.com>
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2021-12-23 09:32:51 +01:00
Xu Jia
23b6a6df94 xfrm: Add support for SM4 symmetric cipher algorithm
This patch adds SM4 encryption algorithm entry to ealg_list.

Signed-off-by: Xu Jia <xujia39@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2021-12-23 09:32:51 +01:00
Xu Jia
e6911affa4 xfrm: Add support for SM3 secure hash
This patch allows IPsec to use SM3 HMAC authentication algorithm.

Signed-off-by: Xu Jia <xujia39@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2021-12-23 09:32:51 +01:00
David E. Box
80b3485f7d PCI: Add #defines for accessing PCIe DVSEC fields
Add #defines for accessing Vendor ID, Revision, Length, and ID offsets
in the Designated Vendor Specific Extended Capability (DVSEC). Defined
in PCIe r5.0, sec 7.9.6.

Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20211208015015.891275-2-david.e.box@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-22 13:56:19 +01:00
Ismael Luceno
cb8747b7d2 uapi: Fix undefined __always_inline on non-glibc systems
This macro is defined by glibc itself, which makes the issue go unnoticed on
those systems.  On non-glibc systems it causes build failures on several
utilities and libraries, like bpftool and objtool.

Fixes: 1d509f2a6e ("x86/insn: Support big endian cross-compiles")
Fixes: 2d7ce0e8a7 ("tools/virtio: more stubs")
Fixes: 3fb321fde2 ("selftests/net: ipv6 flowlabel")
Fixes: 50b3ed57de ("selftests/bpf: test bpf flow dissection")
Fixes: 9cacf81f81 ("bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE")
Fixes: a4b2061242 ("tools include uapi: Grab a copy of linux/in.h")
Fixes: b12d6ec097 ("bpf: btf: add btf print functionality")
Fixes: c0dd967818 ("tools, include: Grab a copy of linux/erspan.h")
Fixes: c4b6014e8b ("tools: Add copy of perf_event.h to tools/include/linux/")

Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20211115134647.1921-1-ismael@iodev.co.uk
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
2021-12-21 15:09:46 -08:00
Jakub Kicinski
294e70c952 This time we have:
* ndo_fill_forward_path support in mac80211, to let
    drivers use it
  * association comeback notification for userspace,
    to be able to react more sensibly to long delays
  * support for background radar detection hardware
    in some chipsets
  * SA Query Procedures offload on the AP side
  * more logging if we find problems with HT/VHT/HE
  * various cleanups and minor fixes
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEH1e1rEeCd0AIMq6MB8qZga/fl8QFAmHBuIoACgkQB8qZga/f
 l8SDNQ//bWl1fnVTzXcva16NGXNtQc8ufOdDfEHsusTA0qP1EfCDfhiMmRZ+jUQH
 Xdg7F3Yube0fgij1sEgpcoVOFm5wr7p861nljR8m71t9FI832gfd+qdCJicNxGGI
 B3zEhHCkcZ4yBhT35+cKG/H3WBysI8RO65dC6NVlzCyY1iM9TVkHBtbEKrdNljcM
 cKKWRp/fk7lCRVqLtunUd5kJauwJxjwHOm4GTH5BajbT/06m91GLoj/tZEjr9rQL
 aSsBa1nR0/LcMyYbbQYIxLikTZnkzILIJGLakb7k5ZJ2W4/hUv0Zn6LUCyMDM1mK
 7+Bt6qvB3Wz/TwjKYDm2qOniaD4IDVOtEpVPaXGau8c5Cj6rjnJ/cgF3ydBk4+xB
 5xngZBCk6Y4+epg9V7EWfqmV0vVqlWqfUfARwPulLWA1X15mVVBmcrafGEaLvGrC
 mvkq0n0XZzf+ObrILK7yjafOdLC4ATCj8j6RW85mH4yU+PqKrx3gOCrWn3Zm+6BN
 n6y7vs5x6zEitqjap4zsiVxqJf3jtAVcdVy7k52VF2BBpF8xoyrIMYZw5CNUG2Jv
 aTmW5aE8X9mQ2VT88JewZst0IX4jjfK/B8wOj24tokC2mXRdM5uKTOWK7uTFQJfM
 lLFcRYzo6n6epHrA5oBN4SnQ3/QpZNJOEsRxyROXemDxnQ9de+w=
 =u1jf
 -----END PGP SIGNATURE-----

Merge tag 'mac80211-next-for-net-next-2021-12-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
This time we have:
 * ndo_fill_forward_path support in mac80211, to let drivers use it
 * association comeback notification for userspace, to be able
   to react more sensibly to long delays
 * support for background radar detection hardware in some chipsets
 * SA Query Procedures offload on the AP side
 * more logging if we find problems with HT/VHT/HE
 * various cleanups and minor fixes

Conflicts:

net/wireless/reg.c:
  e08ebd6d7b ("cfg80211: Acquire wiphy mutex on regulatory work")
  701fdfe348 ("cfg80211: Enable regulatory enforcement checks for drivers supporting mesh iface")
  https://lore.kernel.org/r/20211221111950.57ecc6a7@canb.auug.org.au

drivers/net/wireless/ath/ath10k/wmi.c:
  7f599aeccb ("cfg80211: Use the HE operation IE to determine a 6GHz BSS channel")
  3bf2537ec2 ("ath10k: drop beacon and probe response which leak from other channel")
  https://lore.kernel.org/r/20211221115004.1cd6b262@canb.auug.org.au

* tag 'mac80211-next-for-net-next-2021-12-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next: (32 commits)
  cfg80211: Enable regulatory enforcement checks for drivers supporting mesh iface
  rfkill: allow to get the software rfkill state
  cfg80211: refactor cfg80211_get_ies_channel_number()
  nl82011: clarify interface combinations wrt. channels
  nl80211: Add support to offload SA Query procedures for AP SME device
  nl80211: Add support to set AP settings flags with single attribute
  mac80211: add more HT/VHT/HE state logging
  cfg80211: Use the HE operation IE to determine a 6GHz BSS channel
  cfg80211: rename offchannel_chain structs to background_chain to avoid confusion with ETSI standard
  mac80211: Notify cfg80211 about association comeback
  cfg80211: Add support for notifying association comeback
  mac80211: introduce channel switch disconnect function
  cfg80211: Fix order of enum nl80211_band_iftype_attr documentation
  cfg80211: simplify cfg80211_chandef_valid()
  mac80211: Remove a couple of obsolete TODO
  mac80211: fix FEC flag in radio tap header
  mac80211: use coarse boottime for airtime fairness code
  ieee80211: change HE nominal packet padding value defines
  cfg80211: use ieee80211_bss_get_elem() instead of _get_ie()
  mac80211: Use memset_after() to clear tx status
  ...
====================

Link: https://lore.kernel.org/r/20211221112532.28708-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-21 07:41:52 -08:00
Matt Johnston
dbcefdeb2a mctp: emit RTM_NEWADDR and RTM_DELADDR
Userspace can receive notification of MCTP address changes via
RTNLGRP_MCTP_IFADDR rtnetlink multicast group.

Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20211220023104.1965509-1-matt@codeconstruct.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-20 18:40:48 -08:00
Xiu Jianfeng
ed98ea2128 audit: replace zero-length array with flexible-array member
Zero-length arrays are deprecated and should be replaced with
flexible-array members.

Link: https://github.com/KSPP/linux/issues/78
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2021-12-20 14:53:27 -05:00
Johannes Berg
d9a8297e87 nl82011: clarify interface combinations wrt. channels
Thinking about MLD (Draft 802.11be) now, it's clear that
we'll have new limitations where different stations (or
links) must be on _different_ channels (or in different
frequency ranges even.) Clarify that the current limit of
multiple channels is a maximum and the same one is OK.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20211201110924.2816d91b6862.I2d997abd525574529f88e941d90aeb640dbb1abf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-12-20 10:53:03 +01:00
Veerendranath Jakkam
87c1aec15d nl80211: Add support to offload SA Query procedures for AP SME device
Add a flag attribute to use in ap settings to indicate userspace
supports offloading of SA Query procedures to driver. Also add AP SME
device feature flag to advertise that the SA Query procedures offloaded
to driver when userspace indicates support for offloading of SA Query
procedures.

Driver handles SA Query procedures in driver's SME it self and skip
sending SA Query request or response frames to userspace when userspace
indicates support for SA Query procedures offload. But if userspace
doesn't advertise support for SA Query procedures offload driver shall
not offload SA Query procedures handling.

Also userspace with SA Query procedures offload capability shall skip SA
Query specific validations when driver indicates support for handling SA
Query procedures.

Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org>
Link: https://lore.kernel.org/r/1637911519-21306-2-git-send-email-vjakkam@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-12-20 10:42:33 +01:00
Veerendranath Jakkam
47301a74bb nl80211: Add support to set AP settings flags with single attribute
In previous method each AP settings flag is represented by a top-level
flag attribute and conversion to enum cfg80211_ap_settings_flags had to
be done before sending them to driver. This commit is to make it easier
to define new AP settings flags and sending them to driver.

This commit also deprecate sending of
%NL80211_ATTR_EXTERNAL_AUTH_SUPPORT in %NL80211_CMD_START_AP. But to
maintain backwards compatibility checks for
%NL80211_ATTR_EXTERNAL_AUTH_SUPPORT in %NL80211_CMD_START_AP when
%NL80211_ATTR_AP_SETTINGS_FLAGS not present in %NL80211_CMD_START_AP.

Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org>
Link: https://lore.kernel.org/r/1637911519-21306-1-git-send-email-vjakkam@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-12-20 10:41:26 +01:00
Lorenzo Bianconi
a95bfb876f cfg80211: rename offchannel_chain structs to background_chain to avoid confusion with ETSI standard
ETSI standard defines "Offchannel CAC" as:
"Off-Channel CAC is performed by a number of non-continuous checks
spread over a period in time. This period, which is required to
determine the presence of radar signals, is defined as the Off-Channel
CAC Time..
Minimum Off-Channel CAC Time 6 minutes and Maximum Off-Channel CAC Time
4 hours..".
mac80211 implementation refers to a dedicated hw chain used for continuous
radar monitoring. Rename offchannel_* references to background_* in
order to avoid confusion with ETSI standard.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/4204cc1d648d76b44557981713231e030a3bd991.1638190762.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-12-20 10:37:36 +01:00
Ilan Peer
a083ee8a4e cfg80211: Add support for notifying association comeback
Thought the underline driver MLME can handle association temporal
rejection with comeback, it is still useful to notify this to
user space, as user space might want to handle the temporal
rejection differently. For example, in case the comeback time
is too long, user space can deauthenticate immediately and try
to associate with a different AP.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211129152938.2467809e8cb3.I45574185b582666bc78eef0c29a4c36b478e5382@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-12-20 10:37:03 +01:00
Ilan Peer
28f350a67d cfg80211: Fix order of enum nl80211_band_iftype_attr documentation
And fix the comment.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211129152938.4ef43aff0c5d.I96dcb743bcd4f387ba4cfaa61987aeb642ad762b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-12-20 10:36:41 +01:00
Baowen Zheng
7adc576512 flow_offload: add skip_hw and skip_sw to control if offload the action
We add skip_hw and skip_sw for user to control if offload the action
to hardware.

We also add in_hw_count for user to indicate if the action is offloaded
to any hardware.

Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-19 14:08:48 +00:00
Jakub Kicinski
7cd2802d74 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-16 16:13:19 -08:00
Linus Torvalds
180f3bcfe3 Networking fixes for 5.16-rc6, including fixes from mac80211, wifi, bpf.
Current release - regressions:
 
  - dpaa2-eth: fix buffer overrun when reporting ethtool statistics
 
 Current release - new code bugs:
 
  - bpf: fix incorrect state pruning for <8B spill/fill
 
  - iavf:
      - add missing unlocks in iavf_watchdog_task()
      - do not override the adapter state in the watchdog task (again)
 
  - mlxsw: spectrum_router: consolidate MAC profiles when possible
 
 Previous releases - regressions:
 
  - mac80211, fix:
      - rate control, avoid driver crash for retransmitted frames
      - regression in SSN handling of addba tx
      - a memory leak where sta_info is not freed
      - marking TX-during-stop for TX in in_reconfig, prevent stall
 
  - cfg80211: acquire wiphy mutex on regulatory work
 
  - wifi drivers: fix build regressions and LED config dependency
 
  - virtio_net: fix rx_drops stat for small pkts
 
  - dsa: mv88e6xxx: unforce speed & duplex in mac_link_down()
 
 Previous releases - always broken:
 
  - bpf, fix:
     - kernel address leakage in atomic fetch
     - kernel address leakage in atomic cmpxchg's r0 aux reg
     - signed bounds propagation after mov32
     - extable fixup offset
     - extable address check
 
  - mac80211:
      - fix the size used for building probe request
      - send ADDBA requests using the tid/queue of the aggregation
        session
      - agg-tx: don't schedule_and_wake_txq() under sta->lock,
        avoid deadlocks
      - validate extended element ID is present
 
  - mptcp:
      - never allow the PM to close a listener subflow (null-defer)
      - clear 'kern' flag from fallback sockets, prevent crash
      - fix deadlock in __mptcp_push_pending()
 
  - inet_diag: fix kernel-infoleak for UDP sockets
 
  - xsk: do not sleep in poll() when need_wakeup set
 
  - smc: avoid very long waits in smc_release()
 
  - sch_ets: don't remove idle classes from the round-robin list
 
  - netdevsim:
      - zero-initialize memory for bpf map's value, prevent info leak
      - don't let user space overwrite read only (max) ethtool parms
 
  - ixgbe: set X550 MDIO speed before talking to PHY
 
  - stmmac:
      - fix null-deref in flower deletion w/ VLAN prio Rx steering
      - dwmac-rk: fix oob read in rk_gmac_setup
 
  - ice: time stamping fixes
 
  - systemport: add global locking for descriptor life cycle
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmG7rdUACgkQMUZtbf5S
 IrtRvw//etsgeg2+zxe+fBSbe7ZihcCB4yzWUoRDdNzPrLNLsnWxKT1wYblDcZft
 b1f/SpTy9ycfg+fspn2qET8gzydn4m9xHkjmlQPzmXB9tdIDF6mECFTAXYlar1hQ
 RQIijpfZYyrZeGdgHpsyq72YC4dpNdbZrxmQFVdpMr3cK8P2N0Dn32bBVa//+jb+
 LCv3Uw9C0yNbqhtRIiukkWIE20+/pXtKm0uErDVmvonqFMWPo6mYD0C2PwC20PwR
 Kv5ok6jH+44fCSwDoLChbB+Wes0AtrIQdUvUwXGXaF3MDfZl+24oLkX5xJl3EHWT
 90Mh0k0NhRORgBZ3NItwK7OliohrRHCYxlAXPjg1Dicxl+kxl0wPlva8v64eAA+u
 ZhwXwaQpCrZNdKoxHJw9kQ/CmbggtxcWkVolbZp3TzDjYY1E7qxuwg51YMhGmGT1
 FPjradYGvHKi+thizJiEdiZaMKRc8bpaL0hbpROxFQvfjNwFOwREQhtnXYP3W5Kd
 lK88fWaH86dxqL+ABvbrMnSZKuNlSL8R/CROWpZuF+vyLRXaxhAvYRrL79bgmkKq
 zvImnh1mFovdyKGJhibFMdy92X14z8FzoyX3VQuFcl9EB+2NQXnNZ6abDLJlufZX
 A0jQ5r46Ce/yyaXXmS61PrP7Pf5sxhs/69fqAIDQfSSzpyUKHd4=
 =VIbd
 -----END PGP SIGNATURE-----

Merge tag 'net-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Networking fixes, including fixes from mac80211, wifi, bpf.

  Relatively large batches of fixes from BPF and the WiFi stack, calm in
  general networking.

  Current release - regressions:

   - dpaa2-eth: fix buffer overrun when reporting ethtool statistics

  Current release - new code bugs:

   - bpf: fix incorrect state pruning for <8B spill/fill

   - iavf:
       - add missing unlocks in iavf_watchdog_task()
       - do not override the adapter state in the watchdog task (again)

   - mlxsw: spectrum_router: consolidate MAC profiles when possible

  Previous releases - regressions:

   - mac80211 fixes:
       - rate control, avoid driver crash for retransmitted frames
       - regression in SSN handling of addba tx
       - a memory leak where sta_info is not freed
       - marking TX-during-stop for TX in in_reconfig, prevent stall

   - cfg80211: acquire wiphy mutex on regulatory work

   - wifi drivers: fix build regressions and LED config dependency

   - virtio_net: fix rx_drops stat for small pkts

   - dsa: mv88e6xxx: unforce speed & duplex in mac_link_down()

  Previous releases - always broken:

   - bpf fixes:
       - kernel address leakage in atomic fetch
       - kernel address leakage in atomic cmpxchg's r0 aux reg
       - signed bounds propagation after mov32
       - extable fixup offset
       - extable address check

   - mac80211:
       - fix the size used for building probe request
       - send ADDBA requests using the tid/queue of the aggregation
         session
       - agg-tx: don't schedule_and_wake_txq() under sta->lock, avoid
         deadlocks
       - validate extended element ID is present

   - mptcp:
       - never allow the PM to close a listener subflow (null-defer)
       - clear 'kern' flag from fallback sockets, prevent crash
       - fix deadlock in __mptcp_push_pending()

   - inet_diag: fix kernel-infoleak for UDP sockets

   - xsk: do not sleep in poll() when need_wakeup set

   - smc: avoid very long waits in smc_release()

   - sch_ets: don't remove idle classes from the round-robin list

   - netdevsim:
       - zero-initialize memory for bpf map's value, prevent info leak
       - don't let user space overwrite read only (max) ethtool parms

   - ixgbe: set X550 MDIO speed before talking to PHY

   - stmmac:
       - fix null-deref in flower deletion w/ VLAN prio Rx steering
       - dwmac-rk: fix oob read in rk_gmac_setup

   - ice: time stamping fixes

   - systemport: add global locking for descriptor life cycle"

* tag 'net-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (89 commits)
  bpf, selftests: Fix racing issue in btf_skc_cls_ingress test
  selftest/bpf: Add a test that reads various addresses.
  bpf: Fix extable address check.
  bpf: Fix extable fixup offset.
  bpf, selftests: Add test case trying to taint map value pointer
  bpf: Make 32->64 bounds propagation slightly more robust
  bpf: Fix signed bounds propagation after mov32
  sit: do not call ipip6_dev_free() from sit_init_net()
  net: systemport: Add global locking for descriptor lifecycle
  net/smc: Prevent smc_release() from long blocking
  net: Fix double 0x prefix print in SKB dump
  virtio_net: fix rx_drops stat for small pkts
  dsa: mv88e6xxx: fix debug print for SPEED_UNFORCED
  sfc_ef100: potential dereference of null pointer
  net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup
  net: usb: lan78xx: add Allied Telesis AT29M2-AF
  net/packet: rx_owner_map depends on pg_vec
  netdevsim: Zero-initialize memory for new map's value in function nsim_bpf_map_alloc
  dpaa2-eth: fix ethtool statistics
  ixgbe: set X550 MDIO speed before talking to PHY
  ...
2021-12-16 15:02:14 -08:00
Kajol Jain
cb1c4aba05 perf: Add new macros for mem_hops field
Add new macros for mem_hops field which can be used to
represent remote-node, socket and board level details.

Currently the code had macro for HOPS_0, which corresponds
to data coming from another core but same node.
Add new macros for HOPS_1 to HOPS_3 to represent
remote-node, socket and board level data.

For ex: Encodings for mem_hops fields with L2 cache:

L2			- local L2
L2 | REMOTE | HOPS_0	- remote core, same node L2
L2 | REMOTE | HOPS_1	- remote node, same socket L2
L2 | REMOTE | HOPS_2	- remote socket, same board L2
L2 | REMOTE | HOPS_3	- remote board L2

Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211206091749.87585-2-kjain@linux.ibm.com
2021-12-16 21:31:44 +11:00
Baruch Siach
fb82437fdd PCI: Change capability register offsets to hex
Convert offsets of capability registers from decimal to hex.  This matches
the spec documents and is less error prone.

[bhelgaas: also convert other capabilities with offsets > 8]
Suggested-by: Bjorn Helgaas <helgaas@kernel.org>
Link: https://lore.kernel.org/r/20210825160516.GA3576414@bjorn-Precision-5520/
Link: https://lore.kernel.org/r/aa067278adacbb59a675366052714081f4980f26.1637244780.git.baruch@tkos.co.il
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-12-15 15:33:02 -06:00
Amir Goldstein
7326e382c2 fanotify: report old and/or new parent+name in FAN_RENAME event
In the special case of FAN_RENAME event, we report old or new or both
old and new parent+name.

A single info record will be reported if either the old or new dir
is watched and two records will be reported if both old and new dir
(or their filesystem) are watched.

The old and new parent+name are reported using new info record types
FAN_EVENT_INFO_TYPE_{OLD,NEW}_DFID_NAME, so if a single info record
is reported, it is clear to the application, to which dir entry the
fid+name info is referring to.

Link: https://lore.kernel.org/r/20211129201537.1932819-11-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2021-12-15 15:57:31 +01:00
Amir Goldstein
3982534ba5 fanotify: record old and new parent and name in FAN_RENAME event
In the special case of FAN_RENAME event, we record both the old
and new parent and name.

Link: https://lore.kernel.org/r/20211129201537.1932819-9-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2021-12-15 14:04:56 +01:00
Amir Goldstein
d61fd650e9 fanotify: introduce group flag FAN_REPORT_TARGET_FID
FAN_REPORT_FID is ambiguous in that it reports the fid of the child for
some events and the fid of the parent for create/delete/move events.

The new FAN_REPORT_TARGET_FID flag is an implicit request to report
the fid of the target object of the operation (a.k.a the child inode)
also in create/delete/move events in addition to the fid of the parent
and the name of the child.

To reduce the test matrix for uninteresting use cases, the new
FAN_REPORT_TARGET_FID flag requires both FAN_REPORT_NAME and
FAN_REPORT_FID.  The convenience macro FAN_REPORT_DFID_NAME_TARGET
combines FAN_REPORT_TARGET_FID with all the required flags.

Link: https://lore.kernel.org/r/20211129201537.1932819-4-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2021-12-15 14:04:25 +01:00
Matthieu Baerts
6813b19287 mptcp: add missing documented NL params
'loc_id' and 'rem_id' are set in all events linked to subflows but those
were missing in the events description in the comments.

Fixes: b911c97c7d ("mptcp: add netlink event support")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-14 18:49:40 -08:00
Hangbin Liu
9c9211a3fc net_tstamp: add new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX
Since commit 94dd016ae5 ("bond: pass get_ts_info and SIOC[SG]HWTSTAMP
ioctl to active device") the user could get bond active interface's
PHC index directly. But when there is a failover, the bond active
interface will change, thus the PHC index is also changed. This may
break the user's program if they did not update the PHC timely.

This patch adds a new hwtstamp_config flag HWTSTAMP_FLAG_BONDED_PHC_INDEX.
When the user wants to get the bond active interface's PHC, they need to
add this flag and be aware the PHC index may be changed.

With the new flag. All flag checks in current drivers are removed. Only
the checking in net_hwtstamp_validate() is kept.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-14 12:28:24 +00:00
Jeffle Xu
98046f7486 fuse: support per inode DAX in fuse protocol
Expand the fuse protocol to support per inode DAX.

FUSE_HAS_INODE_DAX flag is added indicating if fuse server/client
supporting per inode DAX. It can be conveyed in both FUSE_INIT request and
reply.

FUSE_ATTR_DAX flag is added indicating if DAX shall be enabled for
corresponding file. It is conveyed in FUSE_LOOKUP reply.

Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2021-12-14 11:09:36 +01:00
Daniel Vetter
99b03ca651 Linux 5.16-rc5
-----BEGIN PGP SIGNATURE-----
 
 iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmG2fU0eHHRvcnZhbGRz
 QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGC7EH/3R7Rt+OD8Wn8Ss3
 w8V+dBxVwa2u2oMTyUHPxaeOXZ7bi38XlUdLFPOK/76bGwO0a5TmYZqsWdRbGyT0
 HfcYjHsQ0lbJXk/nh2oM47oJxJXVpThIHXJEk0FZ0Y5t+DYjIYlNHzqZymUyhLem
 St74zgWcyT+MXuqY34vB827FJDUnOxhhhi85tObeunaSPAomy9aiYidSC1ARREnz
 iz2VUntP/QnRnKVvL2nUZNzcz1xL5vfCRSKsRGRSv3qW1Y/1M71ylt6JVmSftWq+
 VmMdFxFhdrb1OK/1ct/930Un/UP2NG9EJsWxote2XYlnVSZHzDqH7lUhbqgdCcLz
 1m2tVNY=
 =7wRd
 -----END PGP SIGNATURE-----

Merge v5.16-rc5 into drm-next

Thomas Zimmermann requested a fixes backmerge, specifically also for
96c5f82ef0 ("drm/vc4: fix error code in vc4_create_object()")

Just a bunch of adjacent changes conflicts, even the big pile of them
in vc4.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-12-14 10:24:28 +01:00
Jiri Olsa
f92c1e1836 bpf: Add get_func_[arg|ret|arg_cnt] helpers
Adding following helpers for tracing programs:

Get n-th argument of the traced function:
  long bpf_get_func_arg(void *ctx, u32 n, u64 *value)

Get return value of the traced function:
  long bpf_get_func_ret(void *ctx, u64 *value)

Get arguments count of the traced function:
  long bpf_get_func_arg_cnt(void *ctx)

The trampoline now stores number of arguments on ctx-8
address, so it's easy to verify argument index and find
return value argument's position.

Moving function ip address on the trampoline stack behind
the number of functions arguments, so it's now stored on
ctx-16 address if it's needed.

All helpers above are inlined by verifier.

Also bit unrelated small change - using newly added function
bpf_prog_has_trampoline in check_get_func_ip.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211208193245.172141-5-jolsa@kernel.org
2021-12-13 09:25:59 -08:00
Greg Kroah-Hartman
af40d16042 Merge v5.15-rc5 into char-misc-next
We need the fixes in here as well, and also resolve some merge conflicts
in:
	drivers/misc/eeprom/at25.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-13 10:17:10 +01:00
Hou Tao
c5fb199374 bpf: Add bpf_strncmp helper
The helper compares two strings: one string is a null-terminated
read-only string, and another string has const max storage size
but doesn't need to be null-terminated. It can be used to compare
file name in tracing or LSM program.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211210141652.877186-2-houtao1@huawei.com
2021-12-11 17:40:23 -08:00
Drew DeVault
9dcc38e281 Increase default MLOCK_LIMIT to 8 MiB
This limit has not been updated since 2008, when it was increased to 64
KiB at the request of GnuPG.  Until recently, the main use-cases for this
feature were (1) preventing sensitive memory from being swapped, as in
GnuPG's use-case; and (2) real-time use-cases.  In the first case, little
memory is called for, and in the second case, the user is generally in a
position to increase it if they need more.

The introduction of IOURING_REGISTER_BUFFERS adds a third use-case:
preparing fixed buffers for high-performance I/O.  This use-case will take
as much of this memory as it can get, but is still limited to 64 KiB by
default, which is very little.  This increases the limit to 8 MB, which
was chosen fairly arbitrarily as a more generous, but still conservative,
default value.

It is also possible to raise this limit in userspace.  This is easily
done, for example, in the use-case of a network daemon: systemd, for
instance, provides for this via LimitMEMLOCK in the service file; OpenRC
via the rc_ulimit variables.  However, there is no established userspace
facility for configuring this outside of daemons: end-user applications do
not presently have access to a convenient means of raising their limits.

The buck, as it were, stops with the kernel.  It's much easier to address
it here than it is to bring it to hundreds of distributions, and it can
only realistically be relied upon to be high-enough by end-user software
if it is more-or-less ubiquitous.  Most distros don't change this
particular rlimit from the kernel-supplied default value, so a change here
will easily provide that ubiquity.

Link: https://lkml.kernel.org/r/20211028080813.15966-1-sir@cmpwn.com
Signed-off-by: Drew DeVault <sir@cmpwn.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Andrew Dona-Couch <andrew@donacou.ch>
Cc: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-12-10 17:10:55 -08:00
Jakub Kicinski
be3158290d Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Andrii Nakryiko says:

====================
bpf-next 2021-12-10 v2

We've added 115 non-merge commits during the last 26 day(s) which contain
a total of 182 files changed, 5747 insertions(+), 2564 deletions(-).

The main changes are:

1) Various samples fixes, from Alexander Lobakin.

2) BPF CO-RE support in kernel and light skeleton, from Alexei Starovoitov.

3) A batch of new unified APIs for libbpf, logging improvements, version
   querying, etc. Also a batch of old deprecations for old APIs and various
   bug fixes, in preparation for libbpf 1.0, from Andrii Nakryiko.

4) BPF documentation reorganization and improvements, from Christoph Hellwig
   and Dave Tucker.

5) Support for declarative initialization of BPF_MAP_TYPE_PROG_ARRAY in
   libbpf, from Hengqi Chen.

6) Verifier log fixes, from Hou Tao.

7) Runtime-bounded loops support with bpf_loop() helper, from Joanne Koong.

8) Extend branch record capturing to all platforms that support it,
   from Kajol Jain.

9) Light skeleton codegen improvements, from Kumar Kartikeya Dwivedi.

10) bpftool doc-generating script improvements, from Quentin Monnet.

11) Two libbpf v0.6 bug fixes, from Shuyi Cheng and Vincent Minet.

12) Deprecation warning fix for perf/bpf_counter, from Song Liu.

13) MAX_TAIL_CALL_CNT unification and MIPS build fix for libbpf,
    from Tiezhu Yang.

14) BTF_KING_TYPE_TAG follow-up fixes, from Yonghong Song.

15) Selftests fixes and improvements, from Ilya Leoshkevich, Jean-Philippe
    Brucker, Jiri Olsa, Maxim Mikityanskiy, Tirthendu Sarkar, Yucong Sun,
    and others.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (115 commits)
  libbpf: Add "bool skipped" to struct bpf_map
  libbpf: Fix typo in btf__dedup@LIBBPF_0.0.2 definition
  bpftool: Switch bpf_object__load_xattr() to bpf_object__load()
  selftests/bpf: Remove the only use of deprecated bpf_object__load_xattr()
  selftests/bpf: Add test for libbpf's custom log_buf behavior
  selftests/bpf: Replace all uses of bpf_load_btf() with bpf_btf_load()
  libbpf: Deprecate bpf_object__load_xattr()
  libbpf: Add per-program log buffer setter and getter
  libbpf: Preserve kernel error code and remove kprobe prog type guessing
  libbpf: Improve logging around BPF program loading
  libbpf: Allow passing user log setting through bpf_object_open_opts
  libbpf: Allow passing preallocated log_buf when loading BTF into kernel
  libbpf: Add OPTS-based bpf_btf_load() API
  libbpf: Fix bpf_prog_load() log_buf logic for log_level 0
  samples/bpf: Remove unneeded variable
  bpf: Remove redundant assignment to pointer t
  selftests/bpf: Fix a compilation warning
  perf/bpf_counter: Use bpf_map_create instead of bpf_create_map
  samples: bpf: Fix 'unknown warning group' build warning on Clang
  samples: bpf: Fix xdp_sample_user.o linking with Clang
  ...
====================

Link: https://lore.kernel.org/r/20211210234746.2100561-1-andrii@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-10 15:56:13 -08:00
Mauro Carvalho Chehab
4383cfa18c Linux 5.16-rc4
-----BEGIN PGP SIGNATURE-----
 
 iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmGtOFYeHHRvcnZhbGRz
 QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG1hUH/1bmlOYsscJ7biqd
 VECr5HhTg6iRvwWUiOpU27fLuBeAM1ZdF0oLuCtzvbK2h8lfTclcHfueihK0GIvX
 ci8BvwpOYfUdDUWHglgvGXqICqYch3PiBVMFiRRRkzcpZdyCFCirAynLdOeusdTU
 72Fi2RBaIM+U/5UVKcTx0J9WJsvFcG97lnNX5nT3dUmuoSW4WmX+h4vIe8VYFVmd
 8q1gD17hPL+ThTKcZApn7IsArU1LNEGRg0tYItgMJo8AMTvsZjwR6yQgXeyuQ0Xk
 xp6pZwzABtnL9dfNJ95q1GhsJBX5T5XvAVjt2uR1ADbgh6TDApC1VBKICm1Nva7g
 uT6S0yE=
 =JNL8
 -----END PGP SIGNATURE-----

Merge tag 'v5.16-rc4' into media_tree

Linux 5.16-rc4

* tag 'v5.16-rc4': (984 commits)
  Linux 5.16-rc4
  KVM: SVM: Do not terminate SEV-ES guests on GHCB validation failure
  KVM: SEV: Fall back to vmalloc for SEV-ES scratch area if necessary
  KVM: SEV: Return appropriate error codes if SEV-ES scratch setup fails
  parisc: Mark cr16 CPU clocksource unstable on all SMP machines
  parisc: Fix "make install" on newer debian releases
  sched/uclamp: Fix rq->uclamp_max not set on first enqueue
  preempt/dynamic: Fix setup_preempt_mode() return value
  cifs: avoid use of dstaddr as key for fscache client cookie
  cifs: add server conn_id to fscache client cookie
  cifs: wait for tcon resource_id before getting fscache super
  cifs: fix missed refcounting of ipc tcon
  x86/xen: Add xenpv_restore_regs_and_return_to_usermode()
  x86/entry: Use the correct fence macro after swapgs in kernel CR3
  fget: check that the fd still exists after getting a ref to it
  x86/entry: Add a fence for kernel entry SWAPGS in paranoid_entry()
  x86/sev: Fix SEV-ES INS/OUTS instructions for word, dword, and qword
  powercap: DTPM: Drop unused local variable from init_dtpm()
  io-wq: don't retry task_work creation failure on fatal conditions
  serial: 8250_bcm7271: UART errors after resuming from S2
  ...
2021-12-07 11:29:41 +01:00
Jean-Philippe Brucker
063ebb19d9 iommu/virtio: Add definitions for VIRTIO_IOMMU_F_BYPASS_CONFIG
Add definitions for the VIRTIO_IOMMU_F_BYPASS_CONFIG, which supersedes
VIRTIO_IOMMU_F_BYPASS.

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20211201173323.1045819-2-jean-philippe@linaro.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-12-06 15:03:05 +01:00
Jakub Kicinski
fc993be36f Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-02 11:44:56 -08:00
Alexei Starovoitov
fbd94c7afc bpf: Pass a set of bpf_core_relo-s to prog_load command.
struct bpf_core_relo is generated by llvm and processed by libbpf.
It's a de-facto uapi.
With CO-RE in the kernel the struct bpf_core_relo becomes uapi de-jure.
Add an ability to pass a set of 'struct bpf_core_relo' to prog_load command
and let the kernel perform CO-RE relocations.

Note the struct bpf_line_info and struct bpf_func_info have the same
layout when passed from LLVM to libbpf and from libbpf to the kernel
except "insn_off" fields means "byte offset" when LLVM generates it.
Then libbpf converts it to "insn index" to pass to the kernel.
The struct bpf_core_relo's "insn_off" field is always "byte offset".

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211201181040.23337-6-alexei.starovoitov@gmail.com
2021-12-02 11:18:35 -08:00
Alexei Starovoitov
46334a0cd2 bpf: Define enum bpf_core_relo_kind as uapi.
enum bpf_core_relo_kind is generated by llvm and processed by libbpf.
It's a de-facto uapi.
With CO-RE in the kernel the bpf_core_relo_kind values become uapi de-jure.
Also rename them with BPF_CORE_ prefix to distinguish from conflicting names in
bpf_core_read.h. The enums bpf_field_info_kind, bpf_type_id_kind,
bpf_type_info_kind, bpf_enum_value_kind are passing different values from bpf
program into llvm.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211201181040.23337-5-alexei.starovoitov@gmail.com
2021-12-02 11:18:35 -08:00
Xiayu Zhang
72f6a45202 Fix Comment of ETH_P_802_3_MIN
The description of ETH_P_802_3_MIN is misleading.
The value of EthernetType in Ethernet II frame is more than 0x0600,
the value of Length in 802.3 frame is less than 0x0600.

Signed-off-by: Xiayu Zhang <Xiayu.Zhang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:07:04 +00:00
Eric Dumazet
ce8299b6f7 Revert "net: snmp: add statistics for tcp small queue check"
This reverts commit aeeecb8891.

The new SNMP variable (TCPSmallQueueFailure) can be incremented
for good reasons, even on a 100Gbit single TCP_STREAM flow.

If we really wanted to ease driver debugging [1], this would
require something more sophisticated.

[1] Usually, if a driver is delaying TX completions too much,
this can lead to stalls in TCP output. Various work arounds
have been used in the past, like skb_orphan() in ndo_start_xmit().

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Menglong Dong <imagedong@tencent.com>
Link: https://lore.kernel.org/r/20211201033246.2826224-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-01 19:06:09 -08:00
Joanne Koong
e6f2dd0f80 bpf: Add bpf_loop helper
This patch adds the kernel-side and API changes for a new helper
function, bpf_loop:

long bpf_loop(u32 nr_loops, void *callback_fn, void *callback_ctx,
u64 flags);

where long (*callback_fn)(u32 index, void *ctx);

bpf_loop invokes the "callback_fn" **nr_loops** times or until the
callback_fn returns 1. The callback_fn can only return 0 or 1, and
this is enforced by the verifier. The callback_fn index is zero-indexed.

A few things to please note:
~ The "u64 flags" parameter is currently unused but is included in
case a future use case for it arises.
~ In the kernel-side implementation of bpf_loop (kernel/bpf/bpf_iter.c),
bpf_callback_t is used as the callback function cast.
~ A program can have nested bpf_loop calls but the program must
still adhere to the verifier constraint of its stack depth (the stack depth
cannot exceed MAX_BPF_STACK))
~ Recursive callback_fns do not pass the verifier, due to the call stack
for these being too deep.
~ The next patch will include the tests and benchmark

Signed-off-by: Joanne Koong <joannekoong@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211130030622.4131246-2-joannekoong@fb.com
2021-11-30 10:56:28 -08:00
Hangbin Liu
5944b5abd8 Bonding: add arp_missed_max option
Currently, we use hard code number to verify if we are in the
arp_interval timeslice. But some user may want to reduce/extend
the verify timeslice. With the similar team option 'missed_max'
the uers could change that number based on their own environment.

Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-30 12:15:58 +00:00
Menglong Dong
aeeecb8891 net: snmp: add statistics for tcp small queue check
Once tcp small queue check failed in tcp_small_queue_check(), the
throughput of tcp will be limited, and it's hard to distinguish
whether it is out of tcp congestion control.

Add statistics of LINUX_MIB_TCPSMALLQUEUEFAILURE for this scene.

Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-29 13:05:47 +00:00
Ian Abbott
df0e68c1e9 comedi: Move the main COMEDI headers
Move the main COMEDI driver headers out of "drivers/comedi/" into new
directory "include/linux/comedi/".  These are "comedidev.h",
"comedilib.h", "comedi_pci.h", "comedi_pcmcia.h", and "comedi_usb.h".
Additionally, move the user-space API header "comedi.h" into
"include/uapi/linux/" and add "WITH Linux-syscall-note" to its
SPDX-License-Identifier.

Update the "COMEDI DRIVERS" section of the MAINTAINERS file to account
for these changes.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20211117120604.117740-2-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-26 16:48:59 +01:00
Vivek Goyal
3e2b6fdbdc fuse: send security context of inode on file
When a new inode is created, send its security context to server along with
creation request (FUSE_CREAT, FUSE_MKNOD, FUSE_MKDIR and FUSE_SYMLINK).
This gives server an opportunity to create new file and set security
context (possibly atomically).  In all the configurations it might not be
possible to set context atomically.

Like nfs and ceph, use security_dentry_init_security() to dermine security
context of inode and send it with create, mkdir, mknod, and symlink
requests.

Following is the information sent to server.

fuse_sectx_header, fuse_secctx, xattr_name, security_context

 - struct fuse_secctx_header
   This contains total number of security contexts being sent and total
   size of all the security contexts (including size of
   fuse_secctx_header).

 - struct fuse_secctx
   This contains size of security context which follows this structure.
   There is one fuse_secctx instance per security context.

 - xattr name string
   This string represents name of xattr which should be used while setting
   security context.

 - security context
   This is the actual security context whose size is specified in
   fuse_secctx struct.

Also add the FUSE_SECURITY_CTX flag for the `flags` field of the
fuse_init_out struct.  When this flag is set the kernel will append the
security context for a newly created inode to the request (create, mkdir,
mknod, and symlink).  The server is responsible for ensuring that the inode
appears atomically (preferrably) with the requested security context.

For example, If the server is using SELinux and backed by a "real" linux
file system that supports extended attributes it can write the security
context value to /proc/thread-self/attr/fscreate before making the syscall
to create the inode.

This patch is based on patch from Chirantan Ekbote <chirantan@chromium.org>

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2021-11-25 14:05:18 +01:00
Miklos Szeredi
53db28933e fuse: extend init flags
FUSE_INIT flags are close to running out, so add another 32bits worth of
space.

Add FUSE_INIT_EXT flag to the old flags field in fuse_init_in.  If this
flag is set, then fuse_init_in is extended by 48bytes, in which a flags_hi
field is allocated to contain the high 32bits of the flags.

A flags_hi field is also added to fuse_init_out, allocated out of the
remaining unused fields.

Known userspace implementations of the fuse protocol have been checked to
accept the extended FUSE_INIT request, but this might cause problems with
other implementations.  If that happens to be the case, the protocol
negotiation will have to be extended with an extra initialization request
roundtrip.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2021-11-25 14:05:18 +01:00
Pavel Begunkov
04c76b41ca io_uring: add option to skip CQE posting
Emitting a CQE is expensive from the kernel perspective. Often, it's
also not convenient for the userspace, spends some cycles on processing
and just complicates the logic. A similar problems goes for linked
requests, where we post an CQE for each request in the link.

Introduce a new flags, IOSQE_CQE_SKIP_SUCCESS, trying to help with it.
When set and a request completed successfully, it won't generate a CQE.
When fails, it produces an CQE, but all following linked requests will
be CQE-less, regardless whether they have IOSQE_CQE_SKIP_SUCCESS or not.
The notion of "fail" is the same as for link failing-cancellation, where
it's opcode dependent, and _usually_ result >= 0 is a success, but not
always.

Linked timeouts are a bit special. When the requests it's linked to was
not attempted to be executed, e.g. failing linked requests, it follows
the description above. Otherwise, whether a linked timeout will post a
completion or not solely depends on IOSQE_CQE_SKIP_SUCCESS of that
linked timeout request. Linked timeout never "fail" during execution, so
for them it's unconditional. It's expected for users to not really care
about the result of it but rely solely on the result of the master
request. Another reason for such a treatment is that it's racy, and the
timeout callback may be running awhile the master request posts its
completion.

use case 1:
If one doesn't care about results of some requests, e.g. normal
timeouts, just set IOSQE_CQE_SKIP_SUCCESS. Error result will still be
posted and need to be handled.

use case 2:
Set IOSQE_CQE_SKIP_SUCCESS for all requests of a link but the last,
and it'll post a completion only for the last one if everything goes
right, otherwise there will be one only one CQE for the first failed
request.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0220fbe06f7cf99e6fc71b4297bb1cb6c0e89c2c.1636559119.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-24 11:17:53 -07:00
Jeremy Kerr
a0c2ccd9b5 mctp: Add MCTP-over-serial transport binding
This change adds a MCTP Serial transport binding, as defined by DMTF
specificiation DSP0253 - "MCTP Serial Transport Binding". This is
implemented as a new serial line discipline, and can be attached to
arbitrary tty devices.

From the Kconfig description:

  This driver provides an MCTP-over-serial interface, through a
  serial line-discipline, as defined by DMTF specification "DSP0253 -
  MCTP Serial Transport Binding". By attaching the ldisc to a serial
  device, we get a new net device to transport MCTP packets.

  This allows communication with external MCTP endpoints which use
  serial as their transport. It can also be used as an easy way to
  provide MCTP connectivity between virtual machines, by forwarding
  data between simple virtual serial devices.

  Say y here if you need to connect to MCTP endpoints over serial. To
  compile as a module, use m; the module will be called mctp-serial.

Once the N_MCTP line discipline is set [using ioctl(TCIOSETD)], we get a
new netdev suitable for MCTP communication.

The 'mctp' utility[1] provides a simple wrapper for this ioctl, using
'link serial <device>':

  # mctp link serial /dev/ttyS0 &
  # mctp link
  dev lo index 1 address 0x00:00:00:00:00:00 net 1 mtu 65536 up
  dev mctpserial0 index 5 address 0x(no-addr) net 1 mtu 68 down

[1]: https://github.com/CodeConstruct/mctp

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-23 11:47:51 +00:00
Hao Chen
0b70c256eb ethtool: add support to set/get rx buf len via ethtool
Add support to set rx buf len via ethtool -G parameter and get
rx buf len via ethtool -g parameter.

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-22 12:31:48 +00:00
Hao Chen
448f413a8b ethtool: add support to set/get tx copybreak buf size via ethtool
Add support for ethtool to set/get tx copybreak buf size.

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-22 12:31:47 +00:00
Andrzej Pietrasiewicz
b88dbe38dc media: uapi: Add VP9 stateless decoder controls
Add the VP9 stateless decoder controls plus the documentation that goes
with it.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Co-developed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Co-developed-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-11-22 07:44:55 +00:00