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Author SHA1 Message Date
Toke Høiland-Jørgensen
09d88791c7 bpf: Make sure internal and UAPI bpf_redirect flags don't overlap 
The bpf_redirect_info is shared between the SKB and XDP redirect paths,
and the two paths use the same numeric flag values in the ri->flags
field (specifically, BPF_F_BROADCAST == BPF_F_NEXTHOP). This means that
if skb bpf_redirect_neigh() is used with a non-NULL params argument and,
subsequently, an XDP redirect is performed using the same
bpf_redirect_info struct, the XDP path will get confused and end up
crashing, which syzbot managed to trigger.

With the stack-allocated bpf_redirect_info, the structure is no longer
shared between the SKB and XDP paths, so the crash doesn't happen
anymore. However, different code paths using identically-numbered flag
values in the same struct field still seems like a bit of a mess, so
this patch cleans that up by moving the flag definitions together and
redefining the three flags in BPF_F_REDIRECT_INTERNAL to not overlap
with the flags used for XDP. It also adds a BUILD_BUG_ON() check to make
sure the overlap is not re-introduced by mistake.

Fixes: e624d4ed4a ("xdp: Extend xdp_redirect_map with broadcast support")
Reported-by: syzbot+cca39e6e84a367a7e6f6@syzkaller.appspotmail.com
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Closes: https://syzkaller.appspot.com/bug?extid=cca39e6e84a367a7e6f6
Link: https://lore.kernel.org/bpf/20240920125625.59465-1-toke@redhat.com
 2024-10-01 21:40:12 +02:00
Thomas Zimmermann
2dd0ef5d95 Merge drm/drm-next into drm-misc-next 
Get drm-misc-next to up v6.12-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
 2024-09-30 10:50:54 +02:00
Andy Shevchenko
e4ca0e59c3 types: Complement the aligned types with signed 64-bit one 
Some user may want to use aligned signed 64-bit type.
Provide it for them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240903180218.3640501-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2024-09-30 09:20:59 +01:00
Linus Torvalds
9c44575c78 bitmap-for-6.12 
- switch all bitmamp APIs from inline to __always_inline from Brian Norris;
  - introduce GENMASK_U128() macro from Anshuman Khandual;
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Merge tag 'bitmap-for-6.12' of https://github.com/norov/linux

Pull bitmap updates from Yury Norov:

 - switch all bitmamp APIs from inline to __always_inline (Brian Norris)

   The __always_inline series improves on code generation, and now with
   the latest compiler versions is required to avoid compilation
   warnings. It spent enough in my backlog, and I'm thankful to Brian
   Norris for taking over and moving it forward.

 - introduce GENMASK_U128() macro (Anshuman Khandual)

   GENMASK_U128() is a prerequisite needed for arm64 development

* tag 'bitmap-for-6.12' of https://github.com/norov/linux:
  lib/test_bits.c: Add tests for GENMASK_U128()
  uapi: Define GENMASK_U128
  nodemask: Switch from inline to __always_inline
  cpumask: Switch from inline to __always_inline
  bitmap: Switch from inline to __always_inline
  find: Switch from inline to __always_inline
 2024-09-27 12:10:45 -07:00
Linus Torvalds
653608c67a xen: branch for v6.12-rc1a 
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Merge tag 'for-linus-6.12-rc1a-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull more xen updates from Juergen Gross:
 "A second round of Xen related changes and features:

   - a small fix of the xen-pciback driver for a warning issued by
     sparse

   - support PCI passthrough when using a PVH dom0

   - enable loading the kernel in PVH mode at arbitrary addresses,
     avoiding conflicts with the memory map when running as a Xen dom0
     using the host memory layout"

* tag 'for-linus-6.12-rc1a-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/pvh: Add 64bit relocation page tables
  x86/kernel: Move page table macros to header
  x86/pvh: Set phys_base when calling xen_prepare_pvh()
  x86/pvh: Make PVH entrypoint PIC for x86-64
  xen: sync elfnote.h from xen tree
  xen/pciback: fix cast to restricted pci_ers_result_t and pci_power_t
  xen/privcmd: Add new syscall to get gsi from dev
  xen/pvh: Setup gsi for passthrough device
  xen/pci: Add a function to reset device for xen
 2024-09-27 09:55:30 -07:00
Linus Torvalds
5e5466433d Char/Misc and other driver changes for 6.12-rc1 
Here is the "big" set of char/misc and other driver subsystem changes
 for 6.12-rc1.  Sorry for the delay, conference travel for the past two
 weeks has this and my other pull requests showing up real late
 in the cycle.
 
 Lots of changes in here, primarily dominated by the usual IIO driver
 updates and additions, but there are also small driver subsystem updates
 all over the place.  Included in here are:
   - lots and lots of new IIO drivers and updates to existing ones
   - interconnect subsystem updates and new drivers
   - nvmem subsystem updates and new drivers
   - mhi driver updates
   - power supply subsystem updates
   - kobj_type const work for many different small subsystems
   - comedi driver fix
   - coresight subsystem and driver updates
   - fpga subsystem improvements
   - slimbus fixups
   - binder new feature addition for "frozen" notifications
   - lots and lots of other small driver updates and cleanups
 
 All of these have been in linux-next for a long time with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc driver updates from Greg KH:
 "Here is the "big" set of char/misc and other driver subsystem changes
  for 6.12-rc1.

  Lots of changes in here, primarily dominated by the usual IIO driver
  updates and additions, but there are also small driver subsystem
  updates all over the place. Included in here are:

   - lots and lots of new IIO drivers and updates to existing ones

   - interconnect subsystem updates and new drivers

   - nvmem subsystem updates and new drivers

   - mhi driver updates

   - power supply subsystem updates

   - kobj_type const work for many different small subsystems

   - comedi driver fix

   - coresight subsystem and driver updates

   - fpga subsystem improvements

   - slimbus fixups

   - binder new feature addition for "frozen" notifications

   - lots and lots of other small driver updates and cleanups

  All of these have been in linux-next for a long time with no reported
  problems"

* tag 'char-misc-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (354 commits)
  greybus: gb-beagleplay: Add firmware upload API
  arm64: dts: ti: k3-am625-beagleplay: Add bootloader-backdoor-gpios to cc1352p7
  dt-bindings: net: ti,cc1352p7: Add bootloader-backdoor-gpios
  MAINTAINERS: Update path for U-Boot environment variables YAML
  nvmem: layouts: add U-Boot env layout
  comedi: ni_routing: tools: Check when the file could not be opened
  ocxl: Remove the unused declarations in headr file
  hpet: Fix the wrong format specifier
  uio: Constify struct kobj_type
  cxl: Constify struct kobj_type
  binder: modify the comment for binder_proc_unlock
  iio: adc: axp20x_adc: add support for AXP717 ADC
  dt-bindings: iio: adc: Add AXP717 compatible
  iio: adc: axp20x_adc: Add adc_en1 and adc_en2 to axp_data
  w1: ds2482: Drop explicit initialization of struct i2c_device_id::driver_data to 0
  tools: iio: rm .*.cmd when make clean
  iio: adc: standardize on formatting for id match tables
  iio: proximity: aw96103: Add support for aw96103/aw96105 proximity sensor
  bus: mhi: host: pci_generic: Enable EDL trigger for Foxconn modems
  bus: mhi: host: pci_generic: Update EDL firmware path for Foxconn modems
  ...
 2024-09-26 10:13:08 -07:00
Linus Torvalds
4965ddb166 USB/Thunderbolt update for 6.12-rc1 
Here is the large set of USB and Thunderbolt changes for 6.12-rc1.
 
 Nothing "major" in here, except for a new 9p network gadget that has
 been worked on for a long time (all of the needed acks are here.)  Other
 than that, it's the usual set of:
   - Thunderbolt / USB4 driver updates and additions for new hardware
   - dwc3 driver updates and new features added
   - xhci driver updates
   - typec driver updates
   - USB gadget updates and api additions to make some gadgets more
     configurable by userspace
   - dwc2 driver updates
   - usb phy driver updates
   - usbip feature additions
   - other minor USB driver updates
 
 All of these have been in linux-next for a long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/Thunderbolt updates from Greg KH:
 "Here is the large set of USB and Thunderbolt changes for 6.12-rc1.

  Nothing "major" in here, except for a new 9p network gadget that has
  been worked on for a long time (all of the needed acks are here)

  Other than that, it's the usual set of:

   - Thunderbolt / USB4 driver updates and additions for new hardware

   - dwc3 driver updates and new features added

   - xhci driver updates

   - typec driver updates

   - USB gadget updates and api additions to make some gadgets more
     configurable by userspace

   - dwc2 driver updates

   - usb phy driver updates

   - usbip feature additions

   - other minor USB driver updates

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

* tag 'usb-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (145 commits)
  sub: cdns3: Use predefined PCI vendor ID constant
  sub: cdns2: Use predefined PCI vendor ID constant
  USB: misc: yurex: fix race between read and write
  USB: misc: cypress_cy7c63: check for short transfer
  USB: appledisplay: close race between probe and completion handler
  USB: class: CDC-ACM: fix race between get_serial and set_serial
  usb: r8a66597-hcd: make read-only const arrays static
  usb: typec: ucsi: Fix busy loop on ASUS VivoBooks
  usb: dwc3: rtk: Clean up error code in __get_dwc3_maximum_speed()
  usb: storage: ene_ub6250: Fix right shift warnings
  usb: roles: Improve the fix for a false positive recursive locking complaint
  locking/mutex: Introduce mutex_init_with_key()
  locking/mutex: Define mutex_init() once
  net/9p/usbg: fix CONFIG_USB_GADGET dependency
  usb: xhci: fix loss of data on Cadence xHC
  usb: xHCI: add XHCI_RESET_ON_RESUME quirk for Phytium xHCI host
  usb: dwc3: imx8mp: disable SS_CON and U3 wakeup for system sleep
  usb: dwc3: imx8mp: add 2 software managed quirk properties for host mode
  usb: host: xhci-plat: Parse xhci-missing_cas_quirk and apply quirk
  usb: misc: onboard_usb_dev: add Microchip usb5744 SMBus programming support
  ...
 2024-09-26 09:45:36 -07:00
Linus Torvalds
0181f8c809 virtio: features, fixes, cleanups 
Several new features here:
 
 	virtio-balloon supports new stats
 
 	vdpa supports setting mac address
 
 	vdpa/mlx5 suspend/resume as well as MKEY ops are now faster
 
 	virtio_fs supports new sysfs entries for queue info
 
 	virtio/vsock performance has been improved
 
 Fixes, cleanups all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "Several new features here:

   - virtio-balloon supports new stats

   - vdpa supports setting mac address

   - vdpa/mlx5 suspend/resume as well as MKEY ops are now faster

   - virtio_fs supports new sysfs entries for queue info

   - virtio/vsock performance has been improved

  And fixes, cleanups all over the place"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (34 commits)
  vsock/virtio: avoid queuing packets when intermediate queue is empty
  vsock/virtio: refactor virtio_transport_send_pkt_work
  fw_cfg: Constify struct kobj_type
  vdpa/mlx5: Postpone MR deletion
  vdpa/mlx5: Introduce init/destroy for MR resources
  vdpa/mlx5: Rename mr_mtx -> lock
  vdpa/mlx5: Extract mr members in own resource struct
  vdpa/mlx5: Rename function
  vdpa/mlx5: Delete direct MKEYs in parallel
  vdpa/mlx5: Create direct MKEYs in parallel
  MAINTAINERS: add virtio-vsock driver in the VIRTIO CORE section
  virtio_fs: add sysfs entries for queue information
  virtio_fs: introduce virtio_fs_put_locked helper
  vdpa: Remove unused declarations
  vdpa/mlx5: Parallelize VQ suspend/resume for CVQ MQ command
  vdpa/mlx5: Small improvement for change_num_qps()
  vdpa/mlx5: Keep notifiers during suspend but ignore
  vdpa/mlx5: Parallelize device resume
  vdpa/mlx5: Parallelize device suspend
  vdpa/mlx5: Use async API for vq modify commands
  ...
 2024-09-26 08:43:17 -07:00
Phil Sutter
76f1ed087b netfilter: uapi: NFTA_FLOWTABLE_HOOK is NLA_NESTED 
Fix the comment which incorrectly defines it as NLA_U32.

Fixes: 3b49e2e94e ("netfilter: nf_tables: add flow table netlink frontend")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
 2024-09-26 17:14:35 +02:00
Mary Guillemard
f70000ef23 drm/panthor: Add DEV_QUERY_GROUP_PRIORITIES_INFO dev query 
Expose allowed group priorities with a new device query.

This new uAPI will be used in Mesa to properly report what priorities a
user can use for EGL_IMG_context_priority.

Since this extends the uAPI and because userland needs a way to
advertise priorities accordingly, this also bumps the driver minor
version.

v2:
- Remove drm_panthor_group_allow_priority_flags definition
- Document that allowed_mask is a bitmask of drm_panthor_group_priority

v3:
- Use BIT macro in panthor_query_group_priorities_info
- Add r-b from Steven Price and Boris Brezillon

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240909064820.34982-4-mary.guillemard@collabora.com
 2024-09-25 15:26:01 +01:00
Mary Guillemard
f73716fd45 drm/panthor: Add PANTHOR_GROUP_PRIORITY_REALTIME group priority 
This adds a new value to drm_panthor_group_priority exposing the
realtime priority to userspace.

This is required to implement NV_context_priority_realtime in Mesa.

v2:
- Add Steven Price r-b

v3:
- Add Boris Brezillon r-b

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240909064820.34982-3-mary.guillemard@collabora.com
 2024-09-25 15:25:51 +01:00
Maíra Canal
9f8e1c93a0
drm/v3d: Expose Super Pages capability 
Add a new V3D parameter to expose the support of Super Pages to
userspace. The userspace might want to know this information to
apply optimizations that are specific to kernels with Super Pages
enabled.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240923141348.2422499-12-mcanal@igalia.com
 2024-09-25 08:40:26 -03:00
Jiqian Chen
2fae6bb7be xen/privcmd: Add new syscall to get gsi from dev 
On PVH dom0, when passthrough a device to domU, QEMU and xl tools
want to use gsi number to do pirq mapping, see QEMU code
xen_pt_realize->xc_physdev_map_pirq, and xl code
pci_add_dm_done->xc_physdev_map_pirq, but in current codes, the gsi
number is got from file /sys/bus/pci/devices/<sbdf>/irq, that is
wrong, because irq is not equal with gsi, they are in different
spaces, so pirq mapping fails.
And in current linux codes, there is no method to get gsi
for userspace.

For above purpose, record gsi of pcistub devices when init
pcistub and add a new syscall into privcmd to let userspace
can get gsi when they have a need.

Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Message-ID: <20240924061437.2636766-4-Jiqian.Chen@amd.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
 2024-09-25 09:54:55 +02:00
Linus Torvalds
f7fccaa772 fuse update for 6.12 
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Merge tag 'fuse-update-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse updates from Miklos Szeredi:

 - Add support for idmapped fuse mounts (Alexander Mikhalitsyn)

 - Add optimization when checking for writeback (yangyun)

 - Add tracepoints (Josef Bacik)

 - Clean up writeback code (Joanne Koong)

 - Clean up request queuing (me)

 - Misc fixes

* tag 'fuse-update-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (32 commits)
  fuse: use exclusive lock when FUSE_I_CACHE_IO_MODE is set
  fuse: clear FR_PENDING if abort is detected when sending request
  fs/fuse: convert to use invalid_mnt_idmap
  fs/mnt_idmapping: introduce an invalid_mnt_idmap
  fs/fuse: introduce and use fuse_simple_idmap_request() helper
  fs/fuse: fix null-ptr-deref when checking SB_I_NOIDMAP flag
  fuse: allow O_PATH fd for FUSE_DEV_IOC_BACKING_OPEN
  virtio_fs: allow idmapped mounts
  fuse: allow idmapped mounts
  fuse: warn if fuse_access is called when idmapped mounts are allowed
  fuse: handle idmappings properly in ->write_iter()
  fuse: support idmapped ->rename op
  fuse: support idmapped ->set_acl
  fuse: drop idmap argument from __fuse_get_acl
  fuse: support idmapped ->setattr op
  fuse: support idmapped ->permission inode op
  fuse: support idmapped getattr inode op
  fuse: support idmap for mkdir/mknod/symlink/create/tmpfile
  fuse: support idmapped FUSE_EXT_GROUPS
  fuse: add an idmap argument to fuse_simple_request
  ...
 2024-09-24 15:29:42 -07:00
Linus Torvalds
4165cee7ec Description for this pull request: 
- Clean-up unnecessary codes as ->valid_size is supported.
 - buffered-IO fallback is no longer needed when using direct-IO.
 - Move ->valid_size extension from mmap to ->page_mkwrite.
   This improves the overhead caused by unnecessary zero-out during mmap.
 - Fix memleaks from exfat_load_bitmap() and exfat_create_upcase_table().
 - Add sops->shutdown and ioctl.
 - Add Yuezhang Mo as a reviwer.
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Merge tag 'exfat-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

Pull exfat updates from Namjae Jeon:

 - Clean-up unnecessary codes as ->valid_size is supported

 - buffered-IO fallback is no longer needed when using direct-IO

 - Move ->valid_size extension from mmap to ->page_mkwrite. This
   improves the overhead caused by unnecessary zero-out during mmap.

 - Fix memleaks from exfat_load_bitmap() and exfat_create_upcase_table()

 - Add sops->shutdown and ioctl

 - Add Yuezhang Mo as a reviwer

* tag 'exfat-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
  MAINTAINERS: exfat: add myself as reviewer
  exfat: resolve memory leak from exfat_create_upcase_table()
  exfat: move extend valid_size into ->page_mkwrite()
  exfat: fix memory leak in exfat_load_bitmap()
  exfat: Implement sops->shutdown and ioctl
  exfat: do not fallback to buffered write
  exfat: drop ->i_size_ondisk
 2024-09-24 15:26:04 -07:00
Linus Torvalds
db78436bed iommufd 6.12 merge window pull 
Collection of small cleanup and one fix:
 
 - Sort headers and struct forward declarations
 
 - Fix random selftest failures in some cases due to dirty tracking tests
 
 - Have the reserved IOVA regions mechanism work when a HWPT is used as a
   nesting parent. This updates the nesting parent's IOAS with the reserved
   regions of the device and will also install the ITS doorbell page on
   ARM.
 
 - Add missed validation of parent domain ops against the current iommu
 
 - Fix a syzkaller bug related to integer overflow during ALIGN()
 
 - Tidy two iommu_domain attach paths
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd

Pull iommufd updates from Jason Gunthorpe:
 "Collection of small cleanup and one fix:

   - Sort headers and struct forward declarations

   - Fix random selftest failures in some cases due to dirty tracking
     tests

   - Have the reserved IOVA regions mechanism work when a HWPT is used
     as a nesting parent. This updates the nesting parent's IOAS with
     the reserved regions of the device and will also install the ITS
     doorbell page on ARM.

   - Add missed validation of parent domain ops against the current
     iommu

   - Fix a syzkaller bug related to integer overflow during ALIGN()

   - Tidy two iommu_domain attach paths"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommu: Set iommu_attach_handle->domain in core
  iommufd: Avoid duplicated __iommu_group_set_core_domain() call
  iommufd: Protect against overflow of ALIGN() during iova allocation
  iommufd: Reorder struct forward declarations
  iommufd: Check the domain owner of the parent before creating a nesting domain
  iommufd/device: Enforce reserved IOVA also when attached to hwpt_nested
  iommufd/selftest: Fix buffer read overrrun in the dirty test
  iommufd: Reorder include files
 2024-09-24 11:55:26 -07:00
Linus Torvalds
54d7e8190e RDMA v6.12 merge window 
Usual collection of small improvements and fixes:
 
 - Bug fixes and minor improvments in cxgb4, siw, mlx5, rxe, efa, rts, hfi,
   erdma, hns, irdma
 
 - Code cleanups/typos/etc. Tidy alloc_ordered_workqueue() calls
 
 - Multipath PCI for mlx5
 
 - Variable size work queue, SRQ changes, and relaxed ordering for new bnxt HW
 
 - New ODP fault resolution FW protocol in mlx5
 
 - New "rdma monitor" netlink mechanism
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Usual collection of small improvements and fixes, nothing especially
  stands out to me here.

  The new multipath PCI feature is a sign of things to come, I think we
  will see more of this in the next 10 years. Broadcom and HNS continue
  to update their drivers for their new HW generations.

  Summary:

   - Bug fixes and minor improvments in cxgb4, siw, mlx5, rxe, efa, rts,
     hfi, erdma, hns, irdma

   - Code cleanups/typos/etc. Tidy alloc_ordered_workqueue() calls

   - Multipath PCI for mlx5

   - Variable size work queue, SRQ changes, and relaxed ordering for new
     bnxt HW

   - New ODP fault resolution FW protocol in mlx5

   - New 'rdma monitor' netlink mechanism"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (99 commits)
  RDMA/bnxt_re: Remove the unused variable en_dev
  RDMA/nldev: Add missing break in rdma_nl_notify_err_msg()
  RDMA/irdma: fix error message in irdma_modify_qp_roce()
  RDMA/cxgb4: Added NULL check for lookup_atid
  RDMA/hns: Fix ah error counter in sw stat not increasing
  RDMA/bnxt_re: Recover the device when FW error is detected
  RDMA/bnxt_re: Group all operations under add_device and remove_device
  RDMA/bnxt_re: Use the aux device for L2 ULP callbacks
  RDMA/bnxt_re: Change aux driver data to en_info to hold more information
  RDMA/nldev: Expose whether RDMA monitoring is supported
  RDMA/nldev: Add support for RDMA monitoring
  RDMA/mlx5: Use IB set_netdev and get_netdev functions
  RDMA/device: Remove optimization in ib_device_get_netdev()
  RDMA/mlx5: Initialize phys_port_cnt earlier in RDMA device creation
  RDMA/mlx5: Obtain upper net device only when needed
  RDMA/mlx5: Check RoCE LAG status before getting netdev
  RDMA/mlx5: Consider the query_vuid cap for data_direct
  net/mlx5: Handle memory scheme ODP capabilities
  RDMA/mlx5: Add implicit MR handling to ODP memory scheme
  RDMA/mlx5: Add handling for memory scheme page fault events
  ...
 2024-09-24 11:48:00 -07:00
Linus Torvalds
3147a0689d for-6.12/io_uring-20240922 
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Merge tag 'for-6.12/io_uring-20240922' of git://git.kernel.dk/linux

Pull more io_uring updates from Jens Axboe:
 "Mostly just a set of fixes in here, or little changes that didn't get
  included in the initial pull request. This contains:

   - Move the SQPOLL napi polling outside the submission lock (Olivier)

   - Rename of the "copy buffers" API that got added in the 6.12 merge
     window. There's really no copying going on, it's just referencing
     the buffers. After a bit of consideration, decided that it was
     better to simply rename this to avoid potential confusion (me)

   - Shrink struct io_mapped_ubuf from 48 to 32 bytes, by changing it to
     start + len tracking rather than having start / end in there, and
     by removing the caching of folio_mask when we can just calculate it
     from folio_shift when we need it (me)

   - Fixes for the SQPOLL affinity checking (me, Felix)

   - Fix for how cqring waiting checks for the presence of task_work.
     Just check it directly rather than check for a specific
     notification mechanism (me)

   - Tweak to how request linking is represented in tracing (me)

   - Fix a syzbot report that deliberately sets up a huge list of
     overflow entries, and then hits rcu stalls when flushing this list.
     Just check for the need to preempt, and drop/reacquire locks in the
     loop. There's no state maintained over the loop itself, and each
     entry is yanked from head-of-list (me)"

* tag 'for-6.12/io_uring-20240922' of git://git.kernel.dk/linux:
  io_uring: check if we need to reschedule during overflow flush
  io_uring: improve request linking trace
  io_uring: check for presence of task_work rather than TIF_NOTIFY_SIGNAL
  io_uring/sqpoll: do the napi busy poll outside the submission block
  io_uring: clean up a type in io_uring_register_get_file()
  io_uring/sqpoll: do not put cpumask on stack
  io_uring/sqpoll: retain test for whether the CPU is valid
  io_uring/rsrc: change ubuf->ubuf_end to length tracking
  io_uring/rsrc: get rid of io_mapped_ubuf->folio_mask
  io_uring: rename "copy buffers" to "clone buffers"
 2024-09-24 11:11:38 -07:00
Linus Torvalds
e1b061b444 Landlock updates for v6.12-rc1 
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Merge tag 'landlock-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
 "We can now scope a Landlock domain thanks to a new "scoped" field that
  can deny interactions with resources outside of this domain.

  The LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET flag denies connections to an
  abstract UNIX socket created outside of the current scoped domain, and
  the LANDLOCK_SCOPE_SIGNAL flag denies sending a signal to processes
  outside of the current scoped domain.

  These restrictions also apply to nested domains according to their
  scope. The related changes will also be useful to support other kind
  of IPC isolations"

* tag 'landlock-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  landlock: Document LANDLOCK_SCOPE_SIGNAL
  samples/landlock: Add support for signal scoping
  selftests/landlock: Test signal created by out-of-bound message
  selftests/landlock: Test signal scoping for threads
  selftests/landlock: Test signal scoping
  landlock: Add signal scoping
  landlock: Document LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET
  samples/landlock: Add support for abstract UNIX socket scoping
  selftests/landlock: Test inherited restriction of abstract UNIX socket
  selftests/landlock: Test connected and unconnected datagram UNIX socket
  selftests/landlock: Test UNIX sockets with any address formats
  selftests/landlock: Test abstract UNIX socket scoping
  selftests/landlock: Test handling of unknown scope
  landlock: Add abstract UNIX socket scoping
 2024-09-24 10:40:11 -07:00
Linus Torvalds
abf2050f51 media updates for v6.12-rc1 
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Merge tag 'media/v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - New CEC driver: Extron DA HD 4K Plus

 - Lots of driver fixes, cleanups and improvements

* tag 'media/v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (179 commits)
  media: atomisp: Use clamp() in ia_css_eed1_8_vmem_encode()
  media: atomisp: Fix eed1_8 code assigning signed values to an unsigned variable
  media: atomisp: set lock before calling vb2_queue_init()
  media: atomisp: Improve binary finding debug logging
  media: atomisp: Drop dev_dbg() calls from hmm_[alloc|free]()
  media: atomisp: csi2-bridge: Add DMI quirk for t4ka3 on Xiaomi Mipad2
  media: atomisp: add missing wait_prepare/finish ops
  media: atomisp: Remove unused declaration
  media: atomisp: use clamp() in compute_coring()
  media: atomisp: use clamp() in ia_css_eed1_8_encode()
  media: atomisp: Simplify ia_css_pipe_create_cas_scaler_desc_single_output()
  media: atomisp: Replace rarely used macro from math_support.h
  media: atomisp: Remove duplicated leftover, i.e. sh_css_dvs_info.h
  media: atomisp: bnr: fix trailing statement
  media: atomisp: move trailing */ to separate lines
  media: atomisp: move trailing statement to next line.
  media: atomisp: Fix trailing statement in ia_css_de.host.c
  media: atomisp: Fix spelling mistakes in atomisp.h
  media: atomisp: Fix spelling mistakes in atomisp_platform.h
  media: atomisp: Fix spelling mistake in csi_rx_public.h
  ...
 2024-09-23 15:27:58 -07:00
Linus Torvalds
3a37872316 pci-v6.12-changes 
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Merge tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:

   - Wait for device readiness after reset by polling Vendor ID and
     looking for Configuration RRS instead of polling the Command
     register and looking for non-error completions, to avoid hardware
     retries done for RRS on non-Vendor ID reads (Bjorn Helgaas)

   - Rename CRS Completion Status to RRS ('Request Retry Status') to
     match PCIe r6.0 spec usage (Bjorn Helgaas)

   - Clear LBMS bit after a manual link retrain so we don't try to
     retrain a link when there's no downstream device anymore (Maciej W.
     Rozycki)

   - Revert to the original link speed after retraining fails instead of
     leaving it restricted to 2.5GT/s, so a future device has a chance
     to use higher speeds (Maciej W. Rozycki)

   - Wait for each level of downstream bus, not just the first, to
     become accessible before restoring devices on that bus (Ilpo
     Järvinen)

   - Add ARCH_PCI_DEV_GROUPS so s390 can add its own attribute_groups
     without having to stomp on the core's pdev->dev.groups (Lukas
     Wunner)

  Driver binding:

   - Export pcim_request_region(), a managed counterpart of
     pci_request_region(), for use by drivers (Philipp Stanner)

   - Export pcim_iomap_region() and deprecate pcim_iomap_regions()
     (Philipp Stanner)

   - Request the PCI BAR used by xboxvideo (Philipp Stanner)

   - Request and map drm/ast BARs with pcim_iomap_region() (Philipp
     Stanner)

  MSI:

   - Add MSI_FLAG_NO_AFFINITY flag for devices that mux MSIs onto a
     single IRQ line and cannot set the affinity of each MSI to a
     specific CPU core (Marek Vasut)

   - Use MSI_FLAG_NO_AFFINITY and remove unnecessary .irq_set_affinity()
     implementations in aardvark, altera, brcmstb, dwc, mediatek-gen3,
     mediatek, mobiveil, plda, rcar, tegra, vmd, xilinx-nwl,
     xilinx-xdma, and xilinx drivers to avoid 'IRQ: set affinity failed'
     warnings (Marek Vasut)

  Power management:

   - Add pwrctl support for ATH11K inside the WCN6855 package (Konrad
     Dybcio)

  PCI device hotplug:

   - Remove unnecessary hpc_ops struct from shpchp (ngn)

   - Check for PCI_POSSIBLE_ERROR(), not 0xffffffff, in cpqphp
     (weiyufeng)

  Virtualization:

   - Mark Creative Labs EMU20k2 INTx masking as broken (Alex Williamson)

   - Add an ACS quirk for Qualcomm SA8775P, which doesn't advertise ACS
     but does provide ACS-like features (Subramanian Ananthanarayanan)

  IOMMU:

   - Add function 0 DMA alias quirk for Glenfly Arise audio function,
     which uses the function 0 Requester ID (WangYuli)

  NPEM:

   - Add Native PCIe Enclosure Management (NPEM) support for sysfs
     control of NVMe RAID storage indicators (ok/fail/locate/
     rebuild/etc) (Mariusz Tkaczyk)

   - Add support for the ACPI _DSM PCIe SSD status LED management, which
     is functionally similar to NPEM but mediated by platform firmware
     (Mariusz Tkaczyk)

  Device trees:

   - Drop minItems and maxItems from ranges in PCI generic host binding
     since host bridges may have several MMIO and I/O port apertures
     (Frank Li)

   - Add kirin, rcar-gen2, uniphier DT binding top-level constraints for
     clocks (Krzysztof Kozlowski)

  Altera PCIe controller driver:

   - Convert altera DT bindings from text to YAML (Matthew Gerlach)

   - Replace TLP_REQ_ID() with macro PCI_DEVID(), which does the same
     thing and is what other drivers use (Jinjie Ruan)

  Broadcom STB PCIe controller driver:

   - Add DT binding maxItems for reset controllers (Jim Quinlan)

   - Use the 'bridge' reset method if described in the DT (Jim Quinlan)

   - Use the 'swinit' reset method if described in the DT (Jim Quinlan)

   - Add 'has_phy' so the existence of a 'rescal' reset controller
     doesn't imply software control of it (Jim Quinlan)

   - Add support for many inbound DMA windows (Jim Quinlan)

   - Rename SoC 'type' to 'soc_base' express the fact that SoCs come in
     families of multiple similar devices (Jim Quinlan)

   - Add Broadcom 7712 DT description and driver support (Jim Quinlan)

   - Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings for
     maintainability (Bjorn Helgaas)

  Freescale i.MX6 PCIe controller driver:

   - Add imx6q-pcie 'dbi2' and 'atu' reg-names for i.MX8M Endpoints
     (Richard Zhu)

   - Fix a code restructuring error that caused i.MX8MM and i.MX8MP
     Endpoints to fail to establish link (Richard Zhu)

   - Fix i.MX8MP Endpoint occasional failure to trigger MSI by enforcing
     outbound alignment requirement (Richard Zhu)

   - Call phy_power_off() in the .probe() error path (Frank Li)

   - Rename internal names from imx6_* to imx_* since i.MX7/8/9 are also
     supported (Frank Li)

   - Manage Refclk by using SoC-specific callbacks instead of switch
     statements (Frank Li)

   - Manage core reset by using SoC-specific callbacks instead of switch
     statements (Frank Li)

   - Expand comments for erratum ERR010728 workaround (Frank Li)

   - Use generic PHY APIs to configure mode, speed, and submode, which
     is harmless for devices that implement their own internal PHY
     management and don't set the generic imx_pcie->phy (Frank Li)

   - Add i.MX8Q (i.MX8QM, i.MX8QXP, and i.MX8DXL) DT binding and driver
     Root Complex support (Richard Zhu)

  Freescale Layerscape PCIe controller driver:

   - Replace layerscape-pcie DT binding compatible fsl,lx2160a-pcie with
     fsl,lx2160ar2-pcie (Frank Li)

   - Add layerscape-pcie DT binding deprecated 'num-viewport' property
     to address a DT checker warning (Frank Li)

   - Change layerscape-pcie DT binding 'fsl,pcie-scfg' to phandle-array
     (Frank Li)

  Loongson PCIe controller driver:

   - Increase max PCI hosts to 8 for Loongson-3C6000 and newer chipsets
     (Huacai Chen)

  Marvell Aardvark PCIe controller driver:

   - Fix issue with emulating Configuration RRS for two-byte reads of
     Vendor ID; previously it only worked for four-byte reads (Bjorn
     Helgaas)

  MediaTek PCIe Gen3 controller driver:

   - Add per-SoC struct mtk_gen3_pcie_pdata to support multiple SoC
     types (Lorenzo Bianconi)

   - Use reset_bulk APIs to manage PHY reset lines (Lorenzo Bianconi)

   - Add DT and driver support for Airoha EN7581 PCIe controller
     (Lorenzo Bianconi)

  Qualcomm PCIe controller driver:

   - Update qcom,pcie-sc7280 DT binding with eight interrupts (Rayyan
     Ansari)

   - Add back DT 'vddpe-3v3-supply', which was incorrectly removed
     earlier (Johan Hovold)

   - Drop endpoint redundant masking of global IRQ events (Manivannan
     Sadhasivam)

   - Clarify unknown global IRQ message and only log it once to avoid a
     flood (Manivannan Sadhasivam)

   - Add 'linux,pci-domain' property to endpoint DT binding (Manivannan
     Sadhasivam)

   - Assign PCI domain number for endpoint controllers (Manivannan
     Sadhasivam)

   - Add 'qcom_pcie_ep' and the PCI domain number to IRQ names for
     endpoint controller (Manivannan Sadhasivam)

   - Add global SPI interrupt for PCIe link events to DT binding
     (Manivannan Sadhasivam)

   - Add global RC interrupt handler to handle 'Link up' events and
     automatically enumerate hot-added devices (Manivannan Sadhasivam)

   - Avoid mirroring of DBI and iATU register space so it doesn't
     overlap BAR MMIO space (Prudhvi Yarlagadda)

   - Enable controller resources like PHY only after PERST# is
     deasserted to partially avoid the problem that the endpoint SoC
     crashes when accessing things when Refclk is absent (Manivannan
     Sadhasivam)

   - Add 16.0 GT/s equalization and RX lane margining settings (Shashank
     Babu Chinta Venkata)

   - Pass domain number to pci_bus_release_domain_nr() explicitly to
     avoid a NULL pointer dereference (Manivannan Sadhasivam)

  Renesas R-Car PCIe controller driver:

   - Make the read-only const array 'check_addr' static (Colin Ian King)

   - Add R-Car V4M (R8A779H0) PCIe host and endpoint to DT binding
     (Yoshihiro Shimoda)

  TI DRA7xx PCIe controller driver:

   - Request IRQF_ONESHOT for 'dra7xx-pcie-main' IRQ since the primary
     handler is NULL (Siddharth Vadapalli)

   - Handle IRQ request errors during root port and endpoint probe
     (Siddharth Vadapalli)

  TI J721E PCIe driver:

   - Add DT 'ti,syscon-acspcie-proxy-ctrl' and driver support to enable
     the ACSPCIE module to drive Refclk for the Endpoint (Siddharth
     Vadapalli)

   - Extract the cadence link setup from cdns_pcie_host_setup() so link
     setup can be done separately during resume (Thomas Richard)

   - Add T_PERST_CLK_US definition for the mandatory delay between
     Refclk becoming stable and PERST# being deasserted (Thomas Richard)

   - Add j721e suspend and resume support (Théo Lebrun)

  TI Keystone PCIe controller driver:

   - Fix NULL pointer checking when applying MRRS limitation quirk for
     AM65x SR 1.0 Errata #i2037 (Dan Carpenter)

  Xilinx NWL PCIe controller driver:

   - Fix off-by-one error in INTx IRQ handler that caused INTx
     interrupts to be lost or delivered as the wrong interrupt (Sean
     Anderson)

   - Rate-limit misc interrupt messages (Sean Anderson)

   - Turn off the clock on probe failure and device removal (Sean
     Anderson)

   - Add DT binding and driver support for enabling/disabling PHYs (Sean
     Anderson)

   - Add PCIe phy bindings for the ZCU102 (Sean Anderson)

  Xilinx XDMA PCIe controller driver:

   - Add support for Xilinx QDMA Soft IP PCIe Root Port Bridge to DT
     binding and xilinx-dma-pl driver (Thippeswamy Havalige)

  Miscellaneous:

   - Fix buffer overflow in kirin_pcie_parse_port() (Alexandra Diupina)

   - Fix minor kerneldoc issues and typos (Bjorn Helgaas)

   - Use PCI_DEVID() macro in aer_inject() instead of open-coding it
     (Jinjie Ruan)

   - Check pcie_find_root_port() return in x86 fixups to avoid NULL
     pointer dereferences (Samasth Norway Ananda)

   - Make pci_bus_type constant (Kunwu Chan)

   - Remove unused declarations of __pci_pme_wakeup() and
     pci_vpd_release() (Yue Haibing)

   - Remove any leftover .*.cmd files with make clean (zhang jiao)

   - Remove unused BILLION macro (zhang jiao)"

* tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (132 commits)
  PCI: Fix typos
  dt-bindings: PCI: qcom: Allow 'vddpe-3v3-supply' again
  tools: PCI: Remove unused BILLION macro
  tools: PCI: Remove .*.cmd files with make clean
  PCI: Pass domain number to pci_bus_release_domain_nr() explicitly
  PCI: dra7xx: Fix error handling when IRQ request fails in probe
  PCI: dra7xx: Fix threaded IRQ request for "dra7xx-pcie-main" IRQ
  PCI: qcom: Add RX lane margining settings for 16.0 GT/s
  PCI: qcom: Add equalization settings for 16.0 GT/s
  PCI: dwc: Always cache the maximum link speed value in dw_pcie::max_link_speed
  PCI: dwc: Rename 'dw_pcie::link_gen' to 'dw_pcie::max_link_speed'
  PCI: qcom-ep: Enable controller resources like PHY only after refclk is available
  PCI: Mark Creative Labs EMU20k2 INTx masking as broken
  dt-bindings: PCI: imx6q-pcie: Add reg-name "dbi2" and "atu" for i.MX8M PCIe Endpoint
  dt-bindings: PCI: altera: msi: Convert to YAML
  PCI: imx6: Add i.MX8Q PCIe Root Complex (RC) support
  PCI: Rename CRS Completion Status to RRS
  PCI: aardvark: Correct Configuration RRS checking
  PCI: Wait for device readiness with Configuration RRS
  PCI: brcmstb: Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings
  ...
 2024-09-23 12:47:06 -07:00
Linus Torvalds
88264981f2 sched_ext: Initial pull request for v6.12 
This is the initial pull request of sched_ext. The v7 patchset
 (https://lkml.kernel.org/r/20240618212056.2833381-1-tj@kernel.org) is
 applied on top of tip/sched/core + bpf/master as of Jun 18th.
 
   tip/sched/core 793a62823d1c ("sched/core: Drop spinlocks on contention iff kernel is preempti
 ble")
   bpf/master f6afdaf72a ("Merge branch 'bpf-support-resilient-split-btf'")
 
 Since then, the following pulls were made:
 
 - v6.11-rc1 is pulled to keep up with the mainline.
 
 - tip/sched/core was pulled several times:
 
   - 7b9f6c864a, 0df340ceae, 5ac998574f, 0b1777f0fa: To resolve
     conflicts. See each commit for details on conflicts and their
     resolutions.
 
   - d7b01aef9d: To receive fd03c5b858 ("sched: Rework pick_next_task()")
     and related commits. @prev in added to sched_class->put_prev_task() and
     put_prev_task() is reordered after ->pick_task(), which makes
     sched_class->switch_class() unnecessary. The follow-up commits update
     sched_ext accordingly and drop sched_class->switch_class().
 
 - bpf/master was pulled to receive baebe9aaba ("bpf: allow passing struct
   bpf_iter_<type> as kfunc arguments") and related changes in preparation
   for the DSQ iterator patchset
 
 To obtain the net sched_ext changes, diff against:
 
   git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git for-6.12-base
 
 which is the merge of:
 
   tip/sched/core bc9057da1a ("sched/cpufreq: Use NSEC_PER_MSEC for deadline task")
   bpf/master 2ad6d23f46 ("selftests/bpf: Do not update vmlinux.h unnecessarily")
 
 Since the v7 patchset, the following changes were made:
 
 - cpuperf support which was a part of the v6 patchset was posted separately
   and then applied after reviews.
 
 - cgroup support which was a part of the v6 patchset was posted seprately,
   iterated and then applied.
 
 - Improve integration with sched core.
 
 - Double locking usage in migration paths dropped. Depend on
   TASK_ON_RQ_MIGRATING synchronization instead.
 
 - The BPF scheduler couldn't directly dispatch to the local DSQ of another
   CPU using a SCX_DSQ_LOCAL_ON verdict. This caused difficulties around
   handling non-wakeup enqueues. Updated so that SCX_DSQ_LOCAL_ON can be used
   in the enqueue path too.
 
 - DSQ iterator which was a part of the v6 patchset was posted separately.
   The iterator itself was applied after a couple revisions. The associated
   selective consumption kfunc can use further improvements and is still
   being worked on.
 
 - scx_bpf_dispatch[_vtime]_from_dsq() added to increase flexibility. A task
   can now be transferred between two DSQs from almost any context. This
   involved significant refactoring of migration code.
 
 - Various fixes and improvements.
 
 As the branch is based on top of tip/sched/core + bpf/master, please merge
 after both are applied.
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Merge tag 'sched_ext-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext support from Tejun Heo:
 "This implements a new scheduler class called ‘ext_sched_class’, or
  sched_ext, which allows scheduling policies to be implemented as BPF
  programs.

  The goals of this are:

   - Ease of experimentation and exploration: Enabling rapid iteration
     of new scheduling policies.

   - Customization: Building application-specific schedulers which
     implement policies that are not applicable to general-purpose
     schedulers.

   - Rapid scheduler deployments: Non-disruptive swap outs of scheduling
     policies in production environments"

See individual commits for more documentation, but also the cover letter
for the latest series:

Link: https://lore.kernel.org/all/20240618212056.2833381-1-tj@kernel.org/

* tag 'sched_ext-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (110 commits)
  sched: Move update_other_load_avgs() to kernel/sched/pelt.c
  sched_ext: Don't trigger ops.quiescent/runnable() on migrations
  sched_ext: Synchronize bypass state changes with rq lock
  scx_qmap: Implement highpri boosting
  sched_ext: Implement scx_bpf_dispatch[_vtime]_from_dsq()
  sched_ext: Compact struct bpf_iter_scx_dsq_kern
  sched_ext: Replace consume_local_task() with move_local_task_to_local_dsq()
  sched_ext: Move consume_local_task() upward
  sched_ext: Move sanity check and dsq_mod_nr() into task_unlink_from_dsq()
  sched_ext: Reorder args for consume_local/remote_task()
  sched_ext: Restructure dispatch_to_local_dsq()
  sched_ext: Fix processs_ddsp_deferred_locals() by unifying DTL_INVALID handling
  sched_ext: Make find_dsq_for_dispatch() handle SCX_DSQ_LOCAL_ON
  sched_ext: Refactor consume_remote_task()
  sched_ext: Rename scx_kfunc_set_sleepable to unlocked and relocate
  sched_ext: Add missing static to scx_dump_data
  sched_ext: Add missing static to scx_has_op[]
  sched_ext: Temporarily work around pick_task_scx() being called without balance_scx()
  sched_ext: Add a cgroup scheduler which uses flattened hierarchy
  sched_ext: Add cgroup support
  ...
 2024-09-21 09:44:57 -07:00
Linus Torvalds
440b652328 bpf-next-6.12 
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Merge tag 'bpf-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf updates from Alexei Starovoitov:

 - Introduce '__attribute__((bpf_fastcall))' for helpers and kfuncs with
   corresponding support in LLVM.

   It is similar to existing 'no_caller_saved_registers' attribute in
   GCC/LLVM with a provision for backward compatibility. It allows
   compilers generate more efficient BPF code assuming the verifier or
   JITs will inline or partially inline a helper/kfunc with such
   attribute. bpf_cast_to_kern_ctx, bpf_rdonly_cast,
   bpf_get_smp_processor_id are the first set of such helpers.

 - Harden and extend ELF build ID parsing logic.

   When called from sleepable context the relevants parts of ELF file
   will be read to find and fetch .note.gnu.build-id information. Also
   harden the logic to avoid TOCTOU, overflow, out-of-bounds problems.

 - Improvements and fixes for sched-ext:
    - Allow passing BPF iterators as kfunc arguments
    - Make the pointer returned from iter_next method trusted
    - Fix x86 JIT convergence issue due to growing/shrinking conditional
      jumps in variable length encoding

 - BPF_LSM related:
    - Introduce few VFS kfuncs and consolidate them in
      fs/bpf_fs_kfuncs.c
    - Enforce correct range of return values from certain LSM hooks
    - Disallow attaching to other LSM hooks

 - Prerequisite work for upcoming Qdisc in BPF:
    - Allow kptrs in program provided structs
    - Support for gen_epilogue in verifier_ops

 - Important fixes:
    - Fix uprobe multi pid filter check
    - Fix bpf_strtol and bpf_strtoul helpers
    - Track equal scalars history on per-instruction level
    - Fix tailcall hierarchy on x86 and arm64
    - Fix signed division overflow to prevent INT_MIN/-1 trap on x86
    - Fix get kernel stack in BPF progs attached to tracepoint:syscall

 - Selftests:
    - Add uprobe bench/stress tool
    - Generate file dependencies to drastically improve re-build time
    - Match JIT-ed and BPF asm with __xlated/__jited keywords
    - Convert older tests to test_progs framework
    - Add support for RISC-V
    - Few fixes when BPF programs are compiled with GCC-BPF backend
      (support for GCC-BPF in BPF CI is ongoing in parallel)
    - Add traffic monitor
    - Enable cross compile and musl libc

* tag 'bpf-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (260 commits)
  btf: require pahole 1.21+ for DEBUG_INFO_BTF with default DWARF version
  btf: move pahole check in scripts/link-vmlinux.sh to lib/Kconfig.debug
  btf: remove redundant CONFIG_BPF test in scripts/link-vmlinux.sh
  bpf: Call the missed kfree() when there is no special field in btf
  bpf: Call the missed btf_record_free() when map creation fails
  selftests/bpf: Add a test case to write mtu result into .rodata
  selftests/bpf: Add a test case to write strtol result into .rodata
  selftests/bpf: Rename ARG_PTR_TO_LONG test description
  selftests/bpf: Fix ARG_PTR_TO_LONG {half-,}uninitialized test
  bpf: Zero former ARG_PTR_TO_{LONG,INT} args in case of error
  bpf: Improve check_raw_mode_ok test for MEM_UNINIT-tagged types
  bpf: Fix helper writes to read-only maps
  bpf: Remove truncation test in bpf_strtol and bpf_strtoul helpers
  bpf: Fix bpf_strtol and bpf_strtoul helpers for 32bit
  selftests/bpf: Add tests for sdiv/smod overflow cases
  bpf: Fix a sdiv overflow issue
  libbpf: Add bpf_object__token_fd accessor
  docs/bpf: Add missing BPF program types to docs
  docs/bpf: Add constant values for linkages
  bpf: Use fake pt_regs when doing bpf syscall tracepoint tracing
  ...
 2024-09-21 09:27:50 -07:00
Linus Torvalds
617a814f14 ALong with the usual shower of singleton patches, notable patch series in 
this pull request are:
 
 "Align kvrealloc() with krealloc()" from Danilo Krummrich.  Adds
 consistency to the APIs and behaviour of these two core allocation
 functions.  This also simplifies/enables Rustification.
 
 "Some cleanups for shmem" from Baolin Wang.  No functional changes - mode
 code reuse, better function naming, logic simplifications.
 
 "mm: some small page fault cleanups" from Josef Bacik.  No functional
 changes - code cleanups only.
 
 "Various memory tiering fixes" from Zi Yan.  A small fix and a little
 cleanup.
 
 "mm/swap: remove boilerplate" from Yu Zhao.  Code cleanups and
 simplifications and .text shrinkage.
 
 "Kernel stack usage histogram" from Pasha Tatashin and Shakeel Butt.  This
 is a feature, it adds new feilds to /proc/vmstat such as
 
     $ grep kstack /proc/vmstat
     kstack_1k 3
     kstack_2k 188
     kstack_4k 11391
     kstack_8k 243
     kstack_16k 0
 
 which tells us that 11391 processes used 4k of stack while none at all
 used 16k.  Useful for some system tuning things, but partivularly useful
 for "the dynamic kernel stack project".
 
 "kmemleak: support for percpu memory leak detect" from Pavel Tikhomirov.
 Teaches kmemleak to detect leaksage of percpu memory.
 
 "mm: memcg: page counters optimizations" from Roman Gushchin.  "3
 independent small optimizations of page counters".
 
 "mm: split PTE/PMD PT table Kconfig cleanups+clarifications" from David
 Hildenbrand.  Improves PTE/PMD splitlock detection, makes powerpc/8xx work
 correctly by design rather than by accident.
 
 "mm: remove arch_make_page_accessible()" from David Hildenbrand.  Some
 folio conversions which make arch_make_page_accessible() unneeded.
 
 "mm, memcg: cg2 memory{.swap,}.peak write handlers" fro David Finkel.
 Cleans up and fixes our handling of the resetting of the cgroup/process
 peak-memory-use detector.
 
 "Make core VMA operations internal and testable" from Lorenzo Stoakes.
 Rationalizaion and encapsulation of the VMA manipulation APIs.  With a
 view to better enable testing of the VMA functions, even from a
 userspace-only harness.
 
 "mm: zswap: fixes for global shrinker" from Takero Funaki.  Fix issues in
 the zswap global shrinker, resulting in improved performance.
 
 "mm: print the promo watermark in zoneinfo" from Kaiyang Zhao.  Fill in
 some missing info in /proc/zoneinfo.
 
 "mm: replace follow_page() by folio_walk" from David Hildenbrand.  Code
 cleanups and rationalizations (conversion to folio_walk()) resulting in
 the removal of follow_page().
 
 "improving dynamic zswap shrinker protection scheme" from Nhat Pham.  Some
 tuning to improve zswap's dynamic shrinker.  Significant reductions in
 swapin and improvements in performance are shown.
 
 "mm: Fix several issues with unaccepted memory" from Kirill Shutemov.
 Improvements to the new unaccepted memory feature,
 
 "mm/mprotect: Fix dax puds" from Peter Xu.  Implements mprotect on DAX
 PUDs.  This was missing, although nobody seems to have notied yet.
 
 "Introduce a store type enum for the Maple tree" from Sidhartha Kumar.
 Cleanups and modest performance improvements for the maple tree library
 code.
 
 "memcg: further decouple v1 code from v2" from Shakeel Butt.  Move more
 cgroup v1 remnants away from the v2 memcg code.
 
 "memcg: initiate deprecation of v1 features" from Shakeel Butt.  Adds
 various warnings telling users that memcg v1 features are deprecated.
 
 "mm: swap: mTHP swap allocator base on swap cluster order" from Chris Li.
 Greatly improves the success rate of the mTHP swap allocation.
 
 "mm: introduce numa_memblks" from Mike Rapoport.  Moves various disparate
 per-arch implementations of numa_memblk code into generic code.
 
 "mm: batch free swaps for zap_pte_range()" from Barry Song.  Greatly
 improves the performance of munmap() of swap-filled ptes.
 
 "support large folio swap-out and swap-in for shmem" from Baolin Wang.
 With this series we no longer split shmem large folios into simgle-page
 folios when swapping out shmem.
 
 "mm/hugetlb: alloc/free gigantic folios" from Yu Zhao.  Nice performance
 improvements and code reductions for gigantic folios.
 
 "support shmem mTHP collapse" from Baolin Wang.  Adds support for
 khugepaged's collapsing of shmem mTHP folios.
 
 "mm: Optimize mseal checks" from Pedro Falcato.  Fixes an mprotect()
 performance regression due to the addition of mseal().
 
 "Increase the number of bits available in page_type" from Matthew Wilcox.
 Increases the number of bits available in page_type!
 
 "Simplify the page flags a little" from Matthew Wilcox.  Many legacy page
 flags are now folio flags, so the page-based flags and their
 accessors/mutators can be removed.
 
 "mm: store zero pages to be swapped out in a bitmap" from Usama Arif.  An
 optimization which permits us to avoid writing/reading zero-filled zswap
 pages to backing store.
 
 "Avoid MAP_FIXED gap exposure" from Liam Howlett.  Fixes a race window
 which occurs when a MAP_FIXED operqtion is occurring during an unrelated
 vma tree walk.
 
 "mm: remove vma_merge()" from Lorenzo Stoakes.  Major rotorooting of the
 vma_merge() functionality, making ot cleaner, more testable and better
 tested.
 
 "misc fixups for DAMON {self,kunit} tests" from SeongJae Park.  Minor
 fixups of DAMON selftests and kunit tests.
 
 "mm: memory_hotplug: improve do_migrate_range()" from Kefeng Wang.  Code
 cleanups and folio conversions.
 
 "Shmem mTHP controls and stats improvements" from Ryan Roberts.  Cleanups
 for shmem controls and stats.
 
 "mm: count the number of anonymous THPs per size" from Barry Song.  Expose
 additional anon THP stats to userspace for improved tuning.
 
 "mm: finish isolate/putback_lru_page()" from Kefeng Wang: more folio
 conversions and removal of now-unused page-based APIs.
 
 "replace per-quota region priorities histogram buffer with per-context
 one" from SeongJae Park.  DAMON histogram rationalization.
 
 "Docs/damon: update GitHub repo URLs and maintainer-profile" from SeongJae
 Park.  DAMON documentation updates.
 
 "mm/vdpa: correct misuse of non-direct-reclaim __GFP_NOFAIL and improve
 related doc and warn" from Jason Wang: fixes usage of page allocator
 __GFP_NOFAIL and GFP_ATOMIC flags.
 
 "mm: split underused THPs" from Yu Zhao.  Improve THP=always policy - this
 was overprovisioning THPs in sparsely accessed memory areas.
 
 "zram: introduce custom comp backends API" frm Sergey Senozhatsky.  Add
 support for zram run-time compression algorithm tuning.
 
 "mm: Care about shadow stack guard gap when getting an unmapped area" from
 Mark Brown.  Fix up the various arch_get_unmapped_area() implementations
 to better respect guard areas.
 
 "Improve mem_cgroup_iter()" from Kinsey Ho.  Improve the reliability of
 mem_cgroup_iter() and various code cleanups.
 
 "mm: Support huge pfnmaps" from Peter Xu.  Extends the usage of huge
 pfnmap support.
 
 "resource: Fix region_intersects() vs add_memory_driver_managed()" from
 Huang Ying.  Fix a bug in region_intersects() for systems with CXL memory.
 
 "mm: hwpoison: two more poison recovery" from Kefeng Wang.  Teaches a
 couple more code paths to correctly recover from the encountering of
 poisoned memry.
 
 "mm: enable large folios swap-in support" from Barry Song.  Support the
 swapin of mTHP memory into appropriately-sized folios, rather than into
 single-page folios.
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Merge tag 'mm-stable-2024-09-20-02-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:
 "Along with the usual shower of singleton patches, notable patch series
  in this pull request are:

   - "Align kvrealloc() with krealloc()" from Danilo Krummrich. Adds
     consistency to the APIs and behaviour of these two core allocation
     functions. This also simplifies/enables Rustification.

   - "Some cleanups for shmem" from Baolin Wang. No functional changes -
     mode code reuse, better function naming, logic simplifications.

   - "mm: some small page fault cleanups" from Josef Bacik. No
     functional changes - code cleanups only.

   - "Various memory tiering fixes" from Zi Yan. A small fix and a
     little cleanup.

   - "mm/swap: remove boilerplate" from Yu Zhao. Code cleanups and
     simplifications and .text shrinkage.

   - "Kernel stack usage histogram" from Pasha Tatashin and Shakeel
     Butt. This is a feature, it adds new feilds to /proc/vmstat such as

       $ grep kstack /proc/vmstat
       kstack_1k 3
       kstack_2k 188
       kstack_4k 11391
       kstack_8k 243
       kstack_16k 0

     which tells us that 11391 processes used 4k of stack while none at
     all used 16k. Useful for some system tuning things, but
     partivularly useful for "the dynamic kernel stack project".

   - "kmemleak: support for percpu memory leak detect" from Pavel
     Tikhomirov. Teaches kmemleak to detect leaksage of percpu memory.

   - "mm: memcg: page counters optimizations" from Roman Gushchin. "3
     independent small optimizations of page counters".

   - "mm: split PTE/PMD PT table Kconfig cleanups+clarifications" from
     David Hildenbrand. Improves PTE/PMD splitlock detection, makes
     powerpc/8xx work correctly by design rather than by accident.

   - "mm: remove arch_make_page_accessible()" from David Hildenbrand.
     Some folio conversions which make arch_make_page_accessible()
     unneeded.

   - "mm, memcg: cg2 memory{.swap,}.peak write handlers" fro David
     Finkel. Cleans up and fixes our handling of the resetting of the
     cgroup/process peak-memory-use detector.

   - "Make core VMA operations internal and testable" from Lorenzo
     Stoakes. Rationalizaion and encapsulation of the VMA manipulation
     APIs. With a view to better enable testing of the VMA functions,
     even from a userspace-only harness.

   - "mm: zswap: fixes for global shrinker" from Takero Funaki. Fix
     issues in the zswap global shrinker, resulting in improved
     performance.

   - "mm: print the promo watermark in zoneinfo" from Kaiyang Zhao. Fill
     in some missing info in /proc/zoneinfo.

   - "mm: replace follow_page() by folio_walk" from David Hildenbrand.
     Code cleanups and rationalizations (conversion to folio_walk())
     resulting in the removal of follow_page().

   - "improving dynamic zswap shrinker protection scheme" from Nhat
     Pham. Some tuning to improve zswap's dynamic shrinker. Significant
     reductions in swapin and improvements in performance are shown.

   - "mm: Fix several issues with unaccepted memory" from Kirill
     Shutemov. Improvements to the new unaccepted memory feature,

   - "mm/mprotect: Fix dax puds" from Peter Xu. Implements mprotect on
     DAX PUDs. This was missing, although nobody seems to have notied
     yet.

   - "Introduce a store type enum for the Maple tree" from Sidhartha
     Kumar. Cleanups and modest performance improvements for the maple
     tree library code.

   - "memcg: further decouple v1 code from v2" from Shakeel Butt. Move
     more cgroup v1 remnants away from the v2 memcg code.

   - "memcg: initiate deprecation of v1 features" from Shakeel Butt.
     Adds various warnings telling users that memcg v1 features are
     deprecated.

   - "mm: swap: mTHP swap allocator base on swap cluster order" from
     Chris Li. Greatly improves the success rate of the mTHP swap
     allocation.

   - "mm: introduce numa_memblks" from Mike Rapoport. Moves various
     disparate per-arch implementations of numa_memblk code into generic
     code.

   - "mm: batch free swaps for zap_pte_range()" from Barry Song. Greatly
     improves the performance of munmap() of swap-filled ptes.

   - "support large folio swap-out and swap-in for shmem" from Baolin
     Wang. With this series we no longer split shmem large folios into
     simgle-page folios when swapping out shmem.

   - "mm/hugetlb: alloc/free gigantic folios" from Yu Zhao. Nice
     performance improvements and code reductions for gigantic folios.

   - "support shmem mTHP collapse" from Baolin Wang. Adds support for
     khugepaged's collapsing of shmem mTHP folios.

   - "mm: Optimize mseal checks" from Pedro Falcato. Fixes an mprotect()
     performance regression due to the addition of mseal().

   - "Increase the number of bits available in page_type" from Matthew
     Wilcox. Increases the number of bits available in page_type!

   - "Simplify the page flags a little" from Matthew Wilcox. Many legacy
     page flags are now folio flags, so the page-based flags and their
     accessors/mutators can be removed.

   - "mm: store zero pages to be swapped out in a bitmap" from Usama
     Arif. An optimization which permits us to avoid writing/reading
     zero-filled zswap pages to backing store.

   - "Avoid MAP_FIXED gap exposure" from Liam Howlett. Fixes a race
     window which occurs when a MAP_FIXED operqtion is occurring during
     an unrelated vma tree walk.

   - "mm: remove vma_merge()" from Lorenzo Stoakes. Major rotorooting of
     the vma_merge() functionality, making ot cleaner, more testable and
     better tested.

   - "misc fixups for DAMON {self,kunit} tests" from SeongJae Park.
     Minor fixups of DAMON selftests and kunit tests.

   - "mm: memory_hotplug: improve do_migrate_range()" from Kefeng Wang.
     Code cleanups and folio conversions.

   - "Shmem mTHP controls and stats improvements" from Ryan Roberts.
     Cleanups for shmem controls and stats.

   - "mm: count the number of anonymous THPs per size" from Barry Song.
     Expose additional anon THP stats to userspace for improved tuning.

   - "mm: finish isolate/putback_lru_page()" from Kefeng Wang: more
     folio conversions and removal of now-unused page-based APIs.

   - "replace per-quota region priorities histogram buffer with
     per-context one" from SeongJae Park. DAMON histogram
     rationalization.

   - "Docs/damon: update GitHub repo URLs and maintainer-profile" from
     SeongJae Park. DAMON documentation updates.

   - "mm/vdpa: correct misuse of non-direct-reclaim __GFP_NOFAIL and
     improve related doc and warn" from Jason Wang: fixes usage of page
     allocator __GFP_NOFAIL and GFP_ATOMIC flags.

   - "mm: split underused THPs" from Yu Zhao. Improve THP=always policy.
     This was overprovisioning THPs in sparsely accessed memory areas.

   - "zram: introduce custom comp backends API" frm Sergey Senozhatsky.
     Add support for zram run-time compression algorithm tuning.

   - "mm: Care about shadow stack guard gap when getting an unmapped
     area" from Mark Brown. Fix up the various arch_get_unmapped_area()
     implementations to better respect guard areas.

   - "Improve mem_cgroup_iter()" from Kinsey Ho. Improve the reliability
     of mem_cgroup_iter() and various code cleanups.

   - "mm: Support huge pfnmaps" from Peter Xu. Extends the usage of huge
     pfnmap support.

   - "resource: Fix region_intersects() vs add_memory_driver_managed()"
     from Huang Ying. Fix a bug in region_intersects() for systems with
     CXL memory.

   - "mm: hwpoison: two more poison recovery" from Kefeng Wang. Teaches
     a couple more code paths to correctly recover from the encountering
     of poisoned memry.

   - "mm: enable large folios swap-in support" from Barry Song. Support
     the swapin of mTHP memory into appropriately-sized folios, rather
     than into single-page folios"

* tag 'mm-stable-2024-09-20-02-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (416 commits)
  zram: free secondary algorithms names
  uprobes: turn xol_area->pages[2] into xol_area->page
  uprobes: introduce the global struct vm_special_mapping xol_mapping
  Revert "uprobes: use vm_special_mapping close() functionality"
  mm: support large folios swap-in for sync io devices
  mm: add nr argument in mem_cgroup_swapin_uncharge_swap() helper to support large folios
  mm: fix swap_read_folio_zeromap() for large folios with partial zeromap
  mm/debug_vm_pgtable: Use pxdp_get() for accessing page table entries
  set_memory: add __must_check to generic stubs
  mm/vma: return the exact errno in vms_gather_munmap_vmas()
  memcg: cleanup with !CONFIG_MEMCG_V1
  mm/show_mem.c: report alloc tags in human readable units
  mm: support poison recovery from copy_present_page()
  mm: support poison recovery from do_cow_fault()
  resource, kunit: add test case for region_intersects()
  resource: make alloc_free_mem_region() works for iomem_resource
  mm: z3fold: deprecate CONFIG_Z3FOLD
  vfio/pci: implement huge_fault support
  mm/arm64: support large pfn mappings
  mm/x86: support large pfn mappings
  ...
 2024-09-21 07:29:05 -07:00
Bjorn Helgaas
9d4f1c0747 Merge branch 'pci/npem' 
- Initialize leds class earlier (with an unfortunate Makefile ordering
  change) so the PCI NPEM driver can use it (Mariusz Tkaczyk)

- Add Native PCIe Enclosure Management (NPEM) support for sysfs control of
  NVMe RAID storage indicators (ok/fail/locate/rebuild/etc) (Mariusz
  Tkaczyk)

- Add support for the ACPI _DSM PCIe SSD status LED management, which is
  functionally similar to NPEM but mediated by platform firmware (Mariusz
  Tkaczyk)

* pci/npem:
  PCI/NPEM: Add _DSM PCIe SSD status LED management
  PCI/NPEM: Add Native PCIe Enclosure Management support
  leds: Init leds class earlier
 2024-09-19 14:25:26 -05:00
Linus Torvalds
2004cef11e In the v6.12 scheduler development cycle we had 63 commits from 18 contributors: 
- Implement the SCHED_DEADLINE server infrastructure - Daniel Bristot de Oliveira's
    last major contribution to the kernel:
 
      "SCHED_DEADLINE servers can help fixing starvation issues of low priority
      tasks (e.g., SCHED_OTHER) when higher priority tasks monopolize CPU
      cycles. Today we have RT Throttling; DEADLINE servers should be able to
      replace and improve that."
 
      (Daniel Bristot de Oliveira, Peter Zijlstra, Joel Fernandes,
       Youssef Esmat, Huang Shijie)
 
  - Preparatory changes for sched_ext integration:
 
      - Use set_next_task(.first) where required
      - Fix up set_next_task() implementations
      - Clean up DL server vs. core sched
      - Split up put_prev_task_balance()
      - Rework pick_next_task()
      - Combine the last put_prev_task() and the first set_next_task()
      - Rework dl_server
      - Add put_prev_task(.next)
 
       (Peter Zijlstra, with a fix by Tejun Heo)
 
  - Complete the EEVDF transition and refine EEVDF scheduling:
 
      - Implement delayed dequeue
      - Allow shorter slices to wakeup-preempt
      - Use sched_attr::sched_runtime to set request/slice suggestion
      - Document the new feature flags
      - Remove unused and duplicate-functionality fields
      - Simplify & unify pick_next_task_fair()
      - Misc debuggability enhancements
 
       (Peter Zijlstra, with fixes/cleanups by Dietmar Eggemann,
        Valentin Schneider and Chuyi Zhou)
 
  - Initialize the vruntime of a new task when it is first enqueued,
    resulting in significant decrease in latency of newly woken tasks.
    (Zhang Qiao)
 
  - Introduce SM_IDLE and an idle re-entry fast-path in __schedule()
    (K Prateek Nayak, Peter Zijlstra)
 
  - Clean up and clarify the usage of Clean up usage of rt_task()
    (Qais Yousef)
 
  - Preempt SCHED_IDLE entities in strict cgroup hierarchies
    (Tianchen Ding)
 
  - Clarify the documentation of time units for deadline scheduler
    parameters. (Christian Loehle)
 
  - Remove the HZ_BW chicken-bit feature flag introduced a year ago,
    the original change seems to be working fine.
    (Phil Auld)
 
  - Misc fixes and cleanups (Chen Yu, Dan Carpenter, Huang Shijie,
    Peilin He, Qais Yousefm and Vincent Guittot)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:

 - Implement the SCHED_DEADLINE server infrastructure - Daniel Bristot
   de Oliveira's last major contribution to the kernel:

     "SCHED_DEADLINE servers can help fixing starvation issues of low
      priority tasks (e.g., SCHED_OTHER) when higher priority tasks
      monopolize CPU cycles. Today we have RT Throttling; DEADLINE
      servers should be able to replace and improve that."

   (Daniel Bristot de Oliveira, Peter Zijlstra, Joel Fernandes, Youssef
   Esmat, Huang Shijie)

 - Preparatory changes for sched_ext integration:
     - Use set_next_task(.first) where required
     - Fix up set_next_task() implementations
     - Clean up DL server vs. core sched
     - Split up put_prev_task_balance()
     - Rework pick_next_task()
     - Combine the last put_prev_task() and the first set_next_task()
     - Rework dl_server
     - Add put_prev_task(.next)

   (Peter Zijlstra, with a fix by Tejun Heo)

 - Complete the EEVDF transition and refine EEVDF scheduling:
     - Implement delayed dequeue
     - Allow shorter slices to wakeup-preempt
     - Use sched_attr::sched_runtime to set request/slice suggestion
     - Document the new feature flags
     - Remove unused and duplicate-functionality fields
     - Simplify & unify pick_next_task_fair()
     - Misc debuggability enhancements

   (Peter Zijlstra, with fixes/cleanups by Dietmar Eggemann, Valentin
   Schneider and Chuyi Zhou)

 - Initialize the vruntime of a new task when it is first enqueued,
   resulting in significant decrease in latency of newly woken tasks
   (Zhang Qiao)

 - Introduce SM_IDLE and an idle re-entry fast-path in __schedule()
   (K Prateek Nayak, Peter Zijlstra)

 - Clean up and clarify the usage of Clean up usage of rt_task()
   (Qais Yousef)

 - Preempt SCHED_IDLE entities in strict cgroup hierarchies
   (Tianchen Ding)

 - Clarify the documentation of time units for deadline scheduler
   parameters (Christian Loehle)

 - Remove the HZ_BW chicken-bit feature flag introduced a year ago,
   the original change seems to be working fine (Phil Auld)

 - Misc fixes and cleanups (Chen Yu, Dan Carpenter, Huang Shijie,
   Peilin He, Qais Yousefm and Vincent Guittot)

* tag 'sched-core-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits)
  sched/cpufreq: Use NSEC_PER_MSEC for deadline task
  cpufreq/cppc: Use NSEC_PER_MSEC for deadline task
  sched/deadline: Clarify nanoseconds in uapi
  sched/deadline: Convert schedtool example to chrt
  sched/debug: Fix the runnable tasks output
  sched: Fix sched_delayed vs sched_core
  kernel/sched: Fix util_est accounting for DELAY_DEQUEUE
  kthread: Fix task state in kthread worker if being frozen
  sched/pelt: Use rq_clock_task() for hw_pressure
  sched/fair: Move effective_cpu_util() and effective_cpu_util() in fair.c
  sched/core: Introduce SM_IDLE and an idle re-entry fast-path in __schedule()
  sched: Add put_prev_task(.next)
  sched: Rework dl_server
  sched: Combine the last put_prev_task() and the first set_next_task()
  sched: Rework pick_next_task()
  sched: Split up put_prev_task_balance()
  sched: Clean up DL server vs core sched
  sched: Fixup set_next_task() implementations
  sched: Use set_next_task(.first) where required
  sched/fair: Properly deactivate sched_delayed task upon class change
  ...
 2024-09-19 15:55:58 +02:00
Linus Torvalds
de848da12f drm next for 6.12-rc1 
string:
 - add mem_is_zero()
 
 core:
 - support more device numbers
 - use XArray for minor ids
 - add backlight constants
 - Split dma fence array creation into alloc and arm
 
 fbdev:
 - remove usage of old fbdev hooks
 
 kms:
 - Add might_fault() to drm_modeset_lock priming
 - Add dynamic per-crtc vblank configuration support
 
 dma-buf:
 - docs cleanup
 
 buddy:
 - Add start address support for trim function
 
 printk:
 - pass description to kmsg_dump
 
 scheduler;
 - Remove full_recover from drm_sched_start
 
 ttm:
 - Make LRU walk restartable after dropping locks
 - Allow direct reclaim to allocate local memory
 
 panic:
 - add display QR code (in rust)
 
 displayport:
 - mst: GUID improvements
 
 bridge:
 - Silence error message on -EPROBE_DEFER
 - analogix: Clean aup
 - bridge-connector: Fix double free
 - lt6505: Disable interrupt when powered off
 - tc358767: Make default DP port preemphasis configurable
 - lt9611uxc: require DRM_BRIDGE_ATTACH_NO_CONNECTOR
 - anx7625: simplify OF array handling
 - dw-hdmi: simplify clock handling
 - lontium-lt8912b: fix mode validation
 - nwl-dsi: fix mode vsync/hsync polarity
 
 xe:
 - Enable LunarLake and Battlemage support
 - Introducing Xe2 ccs modifiers for integrated and discrete graphics
 - rename xe perf to xe observation
 - use wb caching on DGFX for system memory
 - add fence timeouts
 - Lunar Lake graphics/media/display workarounds
 - Battlemage workarounds
 - Battlemage GSC support
 - GSC and HuC fw updates for LL/BM
 - use dma_fence_chain_free
 - refactor hw engine lookup and mmio access
 - enable priority mem read for Xe2
 - Add first GuC BMG fw
 - fix dma-resv lock
 - Fix DGFX display suspend/resume
 - Use xe_managed for kernel BOs
 - Use reserved copy engine for user binds on faulting devices
 - Allow mixing dma-fence jobs and long-running faulting jobs
 - fix media TLB invalidation
 - fix rpm in TTM swapout path
 - track resources and VF state by PF
 
 i915:
 - Type-C programming fix for MTL+
 - FBC cleanup
 - Calc vblank delay more accurately
 - On DP MST, Enable LT fallback for UHBR<->non-UHBR rates
 - Fix DP LTTPR detection
 - limit relocations to INT_MAX
 - fix long hangs in buddy allocator on DG2/A380
 
 amdgpu:
 - Per-queue reset support
 - SDMA devcoredump support
 - DCN 4.0.1 updates
 - GFX12/VCN4/JPEG4 updates
 - Convert vbios embedded EDID to drm_edid
 - GFX9.3/9.4 devcoredump support
 - process isolation framework for GFX 9.4.3/4
 - take IOMMU mappings into account for P2P DMA
 
 amdkfd:
 - CRIU fixes
 - HMM fix
 - Enable process isolation support for GFX 9.4.3/4
 - Allow users to target recommended SDMA engines
 - KFD support for targetting queues on recommended SDMA engines
 
 radeon:
 - remove .load and drm_dev_alloc
 - Fix vbios embedded EDID size handling
 - Convert vbios embedded EDID to drm_edid
 - Use GEM references instead of TTM
 - r100 cp init cleanup
 - Fix potential overflows in evergreen CS offset tracking
 
 msm:
 - DPU:
 - implement DP/PHY mapping on SC8180X
 - Enable writeback on SM8150, SC8180X, SM6125, SM6350
 - DP:
 - Enable widebus on all relevant chipsets
 - MSM8998 HDMI support
 - GPU:
 - A642L speedbin support
 - A615/A306/A621 support
 - A7xx devcoredump support
 
 ast:
 - astdp: Support AST2600 with VGA
 - Clean up HPD
 - Fix timeout loop for DP link training
 - reorganize output code by type (VGA, DP, etc)
 - convert to struct drm_edid
 - fix BMC handling for all outputs
 
 exynos:
 - drop stale MAINTAINERS pattern
 - constify struct
 
 loongson:
 - use GEM refcount over TTM
 
 mgag200:
 - Improve BMC handling
 - Support VBLANK intterupts
 - transparently support BMC outputs
 
 nouveau:
 - Refactor and clean up internals
 - Use GEM refcount over TTM's
 
 gm12u320:
 - convert to struct drm_edid
 
 gma500:
 - update i2c terms
 
 lcdif:
 - pixel clock fix
 
 host1x:
 - fix syncpoint IRQ during resume
 - use iommu_paging_domain_alloc()
 
 imx:
 - ipuv3: convert to struct drm_edid
 
 omapdrm:
 - improve error handling
 - use common helper for_each_endpoint_of_node()
 
 panel:
 - add support for BOE TV101WUM-LL2 plus DT bindings
 - novatek-nt35950: improve error handling
 - nv3051d: improve error handling
 - panel-edp: add support for BOE NE140WUM-N6G; revert support for
   SDC ATNA45AF01
 - visionox-vtdr6130: improve error handling; use
   devm_regulator_bulk_get_const()
 - boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel plus
   DT; Fix porch parameter
 - edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1,
   BOE NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
   CMN N116BCP-EA2, CSW MNB601LS1-4
 - himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
 - ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
 - jd9365da: Support Melfas lmfbx101117480 MIPI-DSI panel plus DT; Refactor
   for code sharing
 - panel-edp: fix name for HKC MB116AN01
 - jd9365da: fix "exit sleep" commands
 - jdi-fhd-r63452: simplify error handling with DSI multi-style
   helpers
 - mantix-mlaf057we51: simplify error handling with DSI multi-style
   helpers
 - simple:
   support Innolux G070ACE-LH3 plus DT bindings
   support On Tat Industrial Company KD50G21-40NT-A1 plus DT bindings
 - st7701:
   decouple DSI and DRM code
   add SPI support
   support Anbernic RG28XX plus DT bindings
 
 mediatek:
 - support alpha blending
 - remove cl in struct cmdq_pkt
 - ovl adaptor fix
 - add power domain binding for mediatek DPI controller
 
 renesas:
 - rz-du: add support for RZ/G2UL plus DT bindings
 
 rockchip:
 - Improve DP sink-capability reporting
 - dw_hdmi: Support 4k@60Hz
 - vop: Support RGB display on Rockchip RK3066; Support 4096px width
 
 sti:
 - convert to struct drm_edid
 
 stm:
 - Avoid UAF wih managed plane and CRTC helpers
 - Fix module owner
 - Fix error handling in probe
 - Depend on COMMON_CLK
 - ltdc: Fix transparency after disabling plane; Remove unused interrupt
 
 tegra:
 - gr3d: improve PM domain handling
 - convert to struct drm_edid
 - Call drm_atomic_helper_shutdown()
 
 vc4:
 - fix PM during detect
 - replace DRM_ERROR() with drm_error()
 - v3d: simplify clock retrieval
 
 v3d:
 - Clean up perfmon
 
 virtio:
 - add DRM capset
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Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "This adds a couple of patches outside the drm core, all should be
  acked appropriately, the string and pstore ones are the main ones that
  come to mind.

  Otherwise it's the usual drivers, xe is getting enabled by default on
  some new hardware, we've changed the device number handling to allow
  more devices, and we added some optional rust code to create QR codes
  in the panic handler, an idea first suggested I think 10 years ago :-)

  string:
   - add mem_is_zero()

  core:
   - support more device numbers
   - use XArray for minor ids
   - add backlight constants
   - Split dma fence array creation into alloc and arm

  fbdev:
   - remove usage of old fbdev hooks

  kms:
   - Add might_fault() to drm_modeset_lock priming
   - Add dynamic per-crtc vblank configuration support

  dma-buf:
   - docs cleanup

  buddy:
   - Add start address support for trim function

  printk:
   - pass description to kmsg_dump

  scheduler:
   - Remove full_recover from drm_sched_start

  ttm:
   - Make LRU walk restartable after dropping locks
   - Allow direct reclaim to allocate local memory

  panic:
   - add display QR code (in rust)

  displayport:
   - mst: GUID improvements

  bridge:
   - Silence error message on -EPROBE_DEFER
   - analogix: Clean aup
   - bridge-connector: Fix double free
   - lt6505: Disable interrupt when powered off
   - tc358767: Make default DP port preemphasis configurable
   - lt9611uxc: require DRM_BRIDGE_ATTACH_NO_CONNECTOR
   - anx7625: simplify OF array handling
   - dw-hdmi: simplify clock handling
   - lontium-lt8912b: fix mode validation
   - nwl-dsi: fix mode vsync/hsync polarity

  xe:
   - Enable LunarLake and Battlemage support
   - Introducing Xe2 ccs modifiers for integrated and discrete graphics
   - rename xe perf to xe observation
   - use wb caching on DGFX for system memory
   - add fence timeouts
   - Lunar Lake graphics/media/display workarounds
   - Battlemage workarounds
   - Battlemage GSC support
   - GSC and HuC fw updates for LL/BM
   - use dma_fence_chain_free
   - refactor hw engine lookup and mmio access
   - enable priority mem read for Xe2
   - Add first GuC BMG fw
   - fix dma-resv lock
   - Fix DGFX display suspend/resume
   - Use xe_managed for kernel BOs
   - Use reserved copy engine for user binds on faulting devices
   - Allow mixing dma-fence jobs and long-running faulting jobs
   - fix media TLB invalidation
   - fix rpm in TTM swapout path
   - track resources and VF state by PF

  i915:
   - Type-C programming fix for MTL+
   - FBC cleanup
   - Calc vblank delay more accurately
   - On DP MST, Enable LT fallback for UHBR<->non-UHBR rates
   - Fix DP LTTPR detection
   - limit relocations to INT_MAX
   - fix long hangs in buddy allocator on DG2/A380

  amdgpu:
   - Per-queue reset support
   - SDMA devcoredump support
   - DCN 4.0.1 updates
   - GFX12/VCN4/JPEG4 updates
   - Convert vbios embedded EDID to drm_edid
   - GFX9.3/9.4 devcoredump support
   - process isolation framework for GFX 9.4.3/4
   - take IOMMU mappings into account for P2P DMA

  amdkfd:
   - CRIU fixes
   - HMM fix
   - Enable process isolation support for GFX 9.4.3/4
   - Allow users to target recommended SDMA engines
   - KFD support for targetting queues on recommended SDMA engines

  radeon:
   - remove .load and drm_dev_alloc
   - Fix vbios embedded EDID size handling
   - Convert vbios embedded EDID to drm_edid
   - Use GEM references instead of TTM
   - r100 cp init cleanup
   - Fix potential overflows in evergreen CS offset tracking

  msm:
   - DPU:
      - implement DP/PHY mapping on SC8180X
      - Enable writeback on SM8150, SC8180X, SM6125, SM6350
   - DP:
      - Enable widebus on all relevant chipsets
      - MSM8998 HDMI support
   - GPU:
      - A642L speedbin support
      - A615/A306/A621 support
      - A7xx devcoredump support

  ast:
   - astdp: Support AST2600 with VGA
   - Clean up HPD
   - Fix timeout loop for DP link training
   - reorganize output code by type (VGA, DP, etc)
   - convert to struct drm_edid
   - fix BMC handling for all outputs

  exynos:
   - drop stale MAINTAINERS pattern
   - constify struct

  loongson:
   - use GEM refcount over TTM

  mgag200:
   - Improve BMC handling
   - Support VBLANK intterupts
   - transparently support BMC outputs

  nouveau:
   - Refactor and clean up internals
   - Use GEM refcount over TTM's

  gm12u320:
   - convert to struct drm_edid

  gma500:
   - update i2c terms

  lcdif:
   - pixel clock fix

  host1x:
   - fix syncpoint IRQ during resume
   - use iommu_paging_domain_alloc()

  imx:
   - ipuv3: convert to struct drm_edid

  omapdrm:
   - improve error handling
   - use common helper for_each_endpoint_of_node()

  panel:
   - add support for BOE TV101WUM-LL2 plus DT bindings
   - novatek-nt35950: improve error handling
   - nv3051d: improve error handling
   - panel-edp:
      - add support for BOE NE140WUM-N6G
      - revert support for SDC ATNA45AF01
   - visionox-vtdr6130:
      - improve error handling
      - use devm_regulator_bulk_get_const()
   - boe-th101mb31ig002:
      - Support for starry-er88577 MIPI-DSI panel plus DT
      - Fix porch parameter
   - edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1, BOE
     NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
     CMN N116BCP-EA2, CSW MNB601LS1-4
   - himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
   - ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
   - jd9365da:
      - Support Melfas lmfbx101117480 MIPI-DSI panel plus DT
      - Refactor for code sharing
   - panel-edp: fix name for HKC MB116AN01
   - jd9365da: fix "exit sleep" commands
   - jdi-fhd-r63452: simplify error handling with DSI multi-style
     helpers
   - mantix-mlaf057we51: simplify error handling with DSI multi-style
     helpers
   - simple:
      - support Innolux G070ACE-LH3 plus DT bindings
      - support On Tat Industrial Company KD50G21-40NT-A1 plus DT
        bindings
   - st7701:
      - decouple DSI and DRM code
      - add SPI support
      - support Anbernic RG28XX plus DT bindings

  mediatek:
   - support alpha blending
   - remove cl in struct cmdq_pkt
   - ovl adaptor fix
   - add power domain binding for mediatek DPI controller

  renesas:
   - rz-du: add support for RZ/G2UL plus DT bindings

  rockchip:
   - Improve DP sink-capability reporting
   - dw_hdmi: Support 4k@60Hz
   - vop:
      - Support RGB display on Rockchip RK3066
      - Support 4096px width

  sti:
   - convert to struct drm_edid

  stm:
   - Avoid UAF wih managed plane and CRTC helpers
   - Fix module owner
   - Fix error handling in probe
   - Depend on COMMON_CLK
   - ltdc:
      - Fix transparency after disabling plane
      - Remove unused interrupt

  tegra:
   - gr3d: improve PM domain handling
   - convert to struct drm_edid
   - Call drm_atomic_helper_shutdown()

  vc4:
   - fix PM during detect
   - replace DRM_ERROR() with drm_error()
   - v3d: simplify clock retrieval

  v3d:
   - Clean up perfmon

  virtio:
   - add DRM capset"

* tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel: (1326 commits)
  drm/xe: Fix missing conversion to xe_display_pm_runtime_resume
  drm/xe/xe2hpg: Add Wa_15016589081
  drm/xe: Don't keep stale pointer to bo->ggtt_node
  drm/xe: fix missing 'xe_vm_put'
  drm/xe: fix build warning with CONFIG_PM=n
  drm/xe: Suppress missing outer rpm protection warning
  drm/xe: prevent potential UAF in pf_provision_vf_ggtt()
  drm/amd/display: Add all planes on CRTC to state for overlay cursor
  drm/i915/bios: fix printk format width
  drm/i915/display: Fix BMG CCS modifiers
  drm/amdgpu: get rid of bogus includes of fdtable.h
  drm/amdkfd: CRIU fixes
  drm/amdgpu: fix a race in kfd_mem_export_dmabuf()
  drm: new helper: drm_gem_prime_handle_to_dmabuf()
  drm/amdgpu/atomfirmware: Silence UBSAN warning
  drm/amdgpu: Fix kdoc entry in 'amdgpu_vm_cpu_prepare'
  drm/amd/amdgpu: apply command submission parser for JPEG v1
  drm/amd/amdgpu: apply command submission parser for JPEG v2+
  drm/amd/pm: fix the pp_dpm_pcie issue on smu v14.0.2/3
  drm/amd/pm: update the features set on smu v14.0.2/3
  ...
 2024-09-19 10:18:15 +02:00
Linus Torvalds
a65b3c3ed4 hid-for-linus-2024091602 
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Merge tag 'hid-for-linus-2024091602' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID updates from Jiri Kosina:

 - New HID over SPI driver for Goodix devices that don't follow
   Microsoft's HID-over-SPI specification, so a separate driver is
   needed. Currently supported device is GT7986U touchscreen (Charles
   Wang)

 - support for new hardware features in Wacom driver (high-res wheel
   scrolling, touchstrings with relative motions, support for two
   touchrings) (Jason Gerecke)

 - support for customized vendor firmware loading in intel-ish driver
   (Zhang Lixu)

 - fix for theoretical race condition in i2c-hid (Dmitry Torokhov)

 - support for HIDIOCREVOKE -- evdev's EVIOCREVOKE equivalent in hidraw
   (Peter Hutterer)

 - initial hidraw selftest implementation (Benjamin Tissoires)

 - constification of device-specific report descriptors (Thomas
   Weißschuh)

 - other small assorted fixes and device ID / quirk additions

* tag 'hid-for-linus-2024091602' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (54 commits)
  hid: cp2112: Use irq_get_trigger_type() helper
  HID: i2c-hid: ensure various commands do not interfere with each other
  HID: multitouch: Add support for Thinkpad X12 Gen 2 Kbd Portfolio
  HID: wacom: Do not warn about dropped packets for first packet
  HID: wacom: Support sequence numbers smaller than 16-bit
  HID: lg: constify fixed up report descriptor
  HID: uclogic: constify fixed up report descriptor
  HID: waltop: constify fixed up report descriptor
  HID: sony: constify fixed up report descriptor
  HID: pxrc: constify fixed up report descriptor
  HID: steelseries: constify fixed up report descriptor
  HID: viewsonic: constify fixed up report descriptor
  HID: vrc2: constify fixed up report descriptor
  HID: xiaomi: constify fixed up report descriptor
  HID: maltron: constify fixed up report descriptor
  HID: keytouch: constify fixed up report descriptor
  HID: holtek-kbd: constify fixed up report descriptor
  HID: dr: constify fixed up report descriptor
  HID: bigbenff: constify fixed up report descriptor
  HID: picoLCD: Use backlight power constants
  ...
 2024-09-19 09:42:21 +02:00
Linus Torvalds
39b3f4e0db hardening updates for v6.12-rc1 
- lib/string_choices: Add str_up_down() helper (Michal Wajdeczko)
 
 - lib/string_choices: Add str_true_false()/str_false_true() helper
   (Hongbo Li)
 
 - lib/string_choices: Introduce several opposite string choice helpers
   (Hongbo Li)
 
 - lib/string_helpers: rework overflow-dependent code (Justin Stitt)
 
 - fortify: refactor test_fortify Makefile to fix some build problems
   (Masahiro Yamada)
 
 - string: Check for "nonstring" attribute on strscpy() arguments
 
 - virt: vbox: Replace 1-element arrays with flexible arrays
 
 - media: venus: hfi_cmds: Replace 1-element arrays with flexible arrays
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Merge tag 'hardening-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening updates from Kees Cook:

 - lib/string_choices:
    - Add str_up_down() helper (Michal Wajdeczko)
    - Add str_true_false()/str_false_true() helper  (Hongbo Li)
    - Introduce several opposite string choice helpers  (Hongbo Li)

 - lib/string_helpers:
    - rework overflow-dependent code (Justin Stitt)

 - fortify: refactor test_fortify Makefile to fix some build problems
   (Masahiro Yamada)

 - string: Check for "nonstring" attribute on strscpy() arguments

 - virt: vbox: Replace 1-element arrays with flexible arrays

 - media: venus: hfi_cmds: Replace 1-element arrays with flexible arrays

* tag 'hardening-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  lib/string_choices: Add some comments to make more clear for string choices helpers.
  lib/string_choices: Introduce several opposite string choice helpers
  lib/string_choices: Add str_true_false()/str_false_true() helper
  string: Check for "nonstring" attribute on strscpy() arguments
  media: venus: hfi_cmds: struct hfi_session_release_buffer_pkt: Add __counted_by annotation
  media: venus: hfi_cmds: struct hfi_session_release_buffer_pkt: Replace 1-element array with flexible array
  virt: vbox: struct vmmdev_hgcm_pagelist: Replace 1-element array with flexible array
  lib/string_helpers: rework overflow-dependent code
  coccinelle: Add rules to find str_down_up() replacements
  string_choices: Add wrapper for str_down_up()
  coccinelle: Add rules to find str_up_down() replacements
  lib/string_choices: Add str_up_down() helper
  fortify: use if_changed_dep to record header dependency in *.cmd files
  fortify: move test_fortify.sh to lib/test_fortify/
  fortify: refactor test_fortify Makefile to fix some build problems
 2024-09-18 12:12:41 +02:00
Dongliang Cui
f761fcdd28 exfat: Implement sops->shutdown and ioctl 
We found that when writing a large file through buffer write, if the
disk is inaccessible, exFAT does not return an error normally, which
leads to the writing process not stopping properly.

To easily reproduce this issue, you can follow the steps below:

1. format a device to exFAT and then mount (with a full disk erase)
2. dd if=/dev/zero of=/exfat_mount/test.img bs=1M count=8192
3. eject the device

You may find that the dd process does not stop immediately and may
continue for a long time.

The root cause of this issue is that during buffer write process,
exFAT does not need to access the disk to look up directory entries
or the FAT table (whereas FAT would do) every time data is written.
Instead, exFAT simply marks the buffer as dirty and returns,
delegating the writeback operation to the writeback process.

If the disk cannot be accessed at this time, the error will only be
returned to the writeback process, and the original process will not
receive the error, so it cannot be returned to the user side.

When the disk cannot be accessed normally, an error should be returned
to stop the writing process.

Implement sops->shutdown and ioctl to shut down the file system
when underlying block device is marked dead.

Signed-off-by: Dongliang Cui <dongliang.cui@unisoc.com>
Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
 2024-09-18 07:40:56 +09:00
Linus Torvalds
2f27fce671 sound updates for 6.12-rc1 
A fairly big update at this time, both in core and driver sides.
 
 The core received rewrites in PCM buffer allocation handling and
 locking optimizations, PCM rate updates followed by lots of cleanups.
 
 In ASoC side, the legacy Intel drivers have been deprecated by AVS
 drivers which leaded to the significant amount of code reduction.
 SoundWire driver updates and other cleanups contributed more code
 reduction, too.
 
 USB-audio driver received a large cleanup of its big quirk table, and
 the old snd_print*() API usages in many legacy drivers are replaced
 with the standard print API.
 
 Here are some highlights:
 
 Core:
 - More optimized locking in ALSA control code
 - Rewrites of memalloc helpers for better DMA API usage
 - Drop of obsoleted vmalloc PCM buffer helper API
 - Continued MIDI2 UMP updates
 - Support of a new user-space driven timer instance
 - Update for more PCM support rates and cleanups
 - Xrun counter report in the proc files
 
 ASoC:
 - Continued simplification and cleanup works for ASoC
 - Extensive cleanups and refactoring of the Soundwire drivers
 - Removal of Intel machine support obsoleted by the AVS driver
 - Lots of DT schema conversions
 - Machine support for many AMD and Intel x86 platforms
 - Support for AMD ACP 7.1, Mediatek MT6367 and MT8365, Realtek RTL1320
   SoundWire and rev C, and Texas Instruments TAS2563
 
 USB-audio:
 - Add support of multiple control interfaces
 - A large rewrite of quirk table with macros
 - Support for RME Digiface USB
 
 HD-audio:
 - Cleanup of quirk code for Samsung Galaxy laptops
 - Clean up of detection of Cirrus codecs
 - C-Media CM9825 HD-audio codec support
 
 Others:
 - Rewrites to standard print API in a lot of legacy drivers
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Merge tag 'sound-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "A fairly big update at this time, both in core and driver sides.

  The core received rewrites in PCM buffer allocation handling and
  locking optimizations, PCM rate updates followed by lots of cleanups.

  In ASoC side, the legacy Intel drivers have been deprecated by AVS
  drivers which leaded to the significant amount of code reduction.
  SoundWire driver updates and other cleanups contributed more code
  reduction, too.

  USB-audio driver received a large cleanup of its big quirk table, and
  the old snd_print*() API usages in many legacy drivers are replaced
  with the standard print API.

  Here are some highlights:

  Core:
   - More optimized locking in ALSA control code
   - Rewrites of memalloc helpers for better DMA API usage
   - Drop of obsoleted vmalloc PCM buffer helper API
   - Continued MIDI2 UMP updates
   - Support of a new user-space driven timer instance
   - Update for more PCM support rates and cleanups
   - Xrun counter report in the proc files

  ASoC:
   - Continued simplification and cleanup works for ASoC
   - Extensive cleanups and refactoring of the Soundwire drivers
   - Removal of Intel machine support obsoleted by the AVS driver
   - Lots of DT schema conversions
   - Machine support for many AMD and Intel x86 platforms
   - Support for AMD ACP 7.1, Mediatek MT6367 and MT8365, Realtek
     RTL1320 SoundWire and rev C, and Texas Instruments TAS2563

  USB-audio:
   - Add support of multiple control interfaces
   - A large rewrite of quirk table with macros
   - Support for RME Digiface USB

  HD-audio:
   - Cleanup of quirk code for Samsung Galaxy laptops
   - Clean up of detection of Cirrus codecs
   - C-Media CM9825 HD-audio codec support

  Others:
   - Rewrites to standard print API in a lot of legacy drivers"

* tag 'sound-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (410 commits)
  ASoC: topology: Fix redundant logical jump
  ASoC: tas2781: Add Calibration Kcontrols for Chromebook
  ASoC: amd: acp: refactor SoundWire machine driver code
  ASoC: sdw_utils/intel: move soundwire endpoint parsing helper functions
  ASoC: sdw_util/intel: move soundwire endpoint and dai link structures
  ASoC: intel: sof_sdw: rename soundwire parsing helper functions
  ASoC: intel: sof_sdw: rename soundwire endpoint and dailink structures
  ASoC: atmel: mchp-pdmc: Retain Non-Runtime Controls
  ALSA: hda/realtek: Add support for Galaxy Book2 Pro (NP950XEE)
  ASoC: mediatek: mt7986-afe-pcm: Remove redundant error message
  ALSA: memalloc: Use proper DMA mapping API for x86 S/G buffer allocations
  ALSA: memalloc: Use proper DMA mapping API for x86 WC buffer allocations
  ALSA: usb-audio: Add logitech Audio profile quirk
  ASoc: mediatek: mt8365: Remove unneeded assignment
  ASoC: Intel: ARL: Add entry for HDMI-In capture support to non-I2S codec boards.
  ASoC: Intel: sof_rt5682: Add HDMI-In capture with rt5682 support for ARL.
  ASoC: SOF: Intel: hda: remove common_hdmi_codec_drv
  ASoC: Intel: sof_pcm512x: do not check common_hdmi_codec_drv
  ASoC: Intel: ehl_rt5660: do not check common_hdmi_codec_drv
  ASoC: Intel: skl_hda_dsp_generic: use common module for DAI links
  ...
 2024-09-17 17:03:43 +02:00
Linus Torvalds
c3056a7d14 Provide FPU buffer layout in core dumps: 
Debuggers have guess the FPU buffer layout in core dumps, which is error
   prone. This is because AMD and Intel layouts differ.
 
   To avoid buggy heuristics add a ELF section which describes the buffer
   layout which can be retrieved by tools.
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Merge tag 'x86-fpu-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fpu updates from Thomas Gleixner:
 "Provide FPU buffer layout in core dumps:

  Debuggers have guess the FPU buffer layout in core dumps, which is
  error prone. This is because AMD and Intel layouts differ.

  To avoid buggy heuristics add a ELF section which describes the buffer
  layout which can be retrieved by tools"

* tag 'x86-fpu-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/elf: Add a new FPU buffer layout info to x86 core files
 2024-09-17 14:46:17 +02:00
Linus Torvalds
303ba85c60 spi: Updates for v6.12 
This is quite a quiet release for sPI.  The one new core feature here is
 support for configuring the state of the MOSI pin when the bus is idle,
 there are some devices which are very fragile in this regard even when
 the chip select signal is not asserted.  Otherwise we have some new
 driver support, a bunch of small fixes and some general cleanup work.
 
  - Support for configuring the state of the MOSI pin when the the bus is
    idle.
  - Add the Elgin JG0309-01 in spidev.
  - Support for Marvell xSPI, Mediatek MTK7981, Microchip PIC64GX,
    NXP i.MX8ULP, and Rockchip RK3576 controllers.
 
 I also accidentally pulled in an IIO DT bindings update due to a typo
 when applying the MOSI idle state patches.
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Merge tag 'spi-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "This is quite a quiet release for SPI. The one new core feature here
  is support for configuring the state of the MOSI pin when the bus is
  idle, there are some devices which are very fragile in this regard
  even when the chip select signal is not asserted. Otherwise we have
  some new driver support, a bunch of small fixes and some general
  cleanup work.

   - Support for configuring the state of the MOSI pin when the the bus
     is idle

   - Add the Elgin JG0309-01 in spidev

   - Support for Marvell xSPI, Mediatek MTK7981, Microchip PIC64GX, NXP
     i.MX8ULP, and Rockchip RK3576 controllers

  I also accidentally pulled in an IIO DT bindings update due to a typo
  when applying the MOSI idle state patches"

* tag 'spi-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (65 commits)
  spi: geni-qcom: Use devm functions to simplify code
  spi: remove spi_controller_is_slave() and spi_slave_abort()
  platform/olpc: olpc-xo175-ec: switch to use spi_target_abort().
  spi: slave-mt27xx: switch to use target_abort
  spi: spidev: switch to use spi_target_abort()
  spi: slave-system-control: switch to use spi_target_abort()
  spi: slave-time: switch to use spi_target_abort()
  spi: switch to use spi_controller_is_target()
  spi: fspi: add support for imx8ulp
  spi: fspi: involve lut_num for struct nxp_fspi_devtype_data
  dt-bindings: spi: nxp-fspi: add imx8ulp support
  spi: spidev_fdx: Fix the wrong format specifier
  spi: mxs: Switch to RUNTIME/SYSTEM_SLEEP_PM_OPS()
  spi: dt-bindings: Add rockchip,rk3576-spi compatible
  spi: Revert "spi: Insert the missing pci_dev_put()before return"
  spi: zynq-qspi: Replace kzalloc with kmalloc for buffer allocation
  spi: ppc4xx: Sort headers
  spi: ppc4xx: Revert "handle irq_of_parse_and_map() errors"
  spi: zynqmp-gqspi: Simplify with dev_err_probe()
  spi: zynqmp-gqspi: Use devm_spi_alloc_host()
  ...
 2024-09-17 10:31:31 +02:00
Tahera Fahimi
54a6e6bbf3
landlock: Add signal scoping 
Currently, a sandbox process is not restricted to sending a signal (e.g.
SIGKILL) to a process outside the sandbox environment.  The ability to
send a signal for a sandboxed process should be scoped the same way
abstract UNIX sockets are scoped. Therefore, we extend the "scoped"
field in a ruleset with LANDLOCK_SCOPE_SIGNAL to specify that a ruleset
will deny sending any signal from within a sandbox process to its parent
(i.e. any parent sandbox or non-sandboxed processes).

This patch adds file_set_fowner and file_free_security hooks to set and
release a pointer to the file owner's domain. This pointer, fown_domain
in landlock_file_security will be used in file_send_sigiotask to check
if the process can send a signal.

The ruleset_with_unknown_scope test is updated to support
LANDLOCK_SCOPE_SIGNAL.

This depends on two new changes:
- commit 1934b21261 ("file: reclaim 24 bytes from f_owner"): replace
  container_of(fown, struct file, f_owner) with fown->file .
- commit 26f204380a ("fs: Fix file_set_fowner LSM hook
  inconsistencies"): lock before calling the hook.

Signed-off-by: Tahera Fahimi <fahimitahera@gmail.com>
Closes: https://github.com/landlock-lsm/linux/issues/8
Link: https://lore.kernel.org/r/df2b4f880a2ed3042992689a793ea0951f6798a5.1725657727.git.fahimitahera@gmail.com
[mic: Update landlock_get_current_domain()'s return type, improve and
fix locking in hook_file_set_fowner(), simplify and fix sleepable call
and locking issue in hook_file_send_sigiotask() and rebase on the latest
VFS tree, simplify hook_task_kill() and quickly return when not
sandboxed, improve comments, rename LANDLOCK_SCOPED_SIGNAL]
Co-developed-by: Mickaël Salaün <mic@digikod.net>
Signed-off-by: Mickaël Salaün <mic@digikod.net>
 2024-09-16 23:50:52 +02:00
Tahera Fahimi
21d52e295a
landlock: Add abstract UNIX socket scoping 
Introduce a new "scoped" member to landlock_ruleset_attr that can
specify LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET to restrict connection to
abstract UNIX sockets from a process outside of the socket's domain.

Two hooks are implemented to enforce these restrictions:
unix_stream_connect and unix_may_send.

Closes: https://github.com/landlock-lsm/linux/issues/7
Signed-off-by: Tahera Fahimi <fahimitahera@gmail.com>
Link: https://lore.kernel.org/r/5f7ad85243b78427242275b93481cfc7c127764b.1725494372.git.fahimitahera@gmail.com
[mic: Fix commit message formatting, improve documentation, simplify
hook_unix_may_send(), and cosmetic fixes including rename of
LANDLOCK_SCOPED_ABSTRACT_UNIX_SOCKET]
Co-developed-by: Mickaël Salaün <mic@digikod.net>
Signed-off-by: Mickaël Salaün <mic@digikod.net>
 2024-09-16 23:50:45 +02:00
Linus Torvalds
a430d95c5e lsm/stable-6.12 PR 20240911 
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Merge tag 'lsm-pr-20240911' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm

Pull lsm updates from Paul Moore:

 - Move the LSM framework to static calls

   This transitions the vast majority of the LSM callbacks into static
   calls. Those callbacks which haven't been converted were left as-is
   due to the general ugliness of the changes required to support the
   static call conversion; we can revisit those callbacks at a future
   date.

 - Add the Integrity Policy Enforcement (IPE) LSM

   This adds a new LSM, Integrity Policy Enforcement (IPE). There is
   plenty of documentation about IPE in this patches, so I'll refrain
   from going into too much detail here, but the basic motivation behind
   IPE is to provide a mechanism such that administrators can restrict
   execution to only those binaries which come from integrity protected
   storage, e.g. a dm-verity protected filesystem. You will notice that
   IPE requires additional LSM hooks in the initramfs, dm-verity, and
   fs-verity code, with the associated patches carrying ACK/review tags
   from the associated maintainers. We couldn't find an obvious
   maintainer for the initramfs code, but the IPE patchset has been
   widely posted over several years.

   Both Deven Bowers and Fan Wu have contributed to IPE's development
   over the past several years, with Fan Wu agreeing to serve as the IPE
   maintainer moving forward. Once IPE is accepted into your tree, I'll
   start working with Fan to ensure he has the necessary accounts, keys,
   etc. so that he can start submitting IPE pull requests to you
   directly during the next merge window.

 - Move the lifecycle management of the LSM blobs to the LSM framework

   Management of the LSM blobs (the LSM state buffers attached to
   various kernel structs, typically via a void pointer named "security"
   or similar) has been mixed, some blobs were allocated/managed by
   individual LSMs, others were managed by the LSM framework itself.

   Starting with this pull we move management of all the LSM blobs,
   minus the XFRM blob, into the framework itself, improving consistency
   across LSMs, and reducing the amount of duplicated code across LSMs.
   Due to some additional work required to migrate the XFRM blob, it has
   been left as a todo item for a later date; from a practical
   standpoint this omission should have little impact as only SELinux
   provides a XFRM LSM implementation.

 - Fix problems with the LSM's handling of F_SETOWN

   The LSM hook for the fcntl(F_SETOWN) operation had a couple of
   problems: it was racy with itself, and it was disconnected from the
   associated DAC related logic in such a way that the LSM state could
   be updated in cases where the DAC state would not. We fix both of
   these problems by moving the security_file_set_fowner() hook into the
   same section of code where the DAC attributes are updated. Not only
   does this resolve the DAC/LSM synchronization issue, but as that code
   block is protected by a lock, it also resolve the race condition.

 - Fix potential problems with the security_inode_free() LSM hook

   Due to use of RCU to protect inodes and the placement of the LSM hook
   associated with freeing the inode, there is a bit of a challenge when
   it comes to managing any LSM state associated with an inode. The VFS
   folks are not open to relocating the LSM hook so we have to get
   creative when it comes to releasing an inode's LSM state.
   Traditionally we have used a single LSM callback within the hook that
   is triggered when the inode is "marked for death", but not actually
   released due to RCU.

   Unfortunately, this causes problems for LSMs which want to take an
   action when the inode's associated LSM state is actually released; so
   we add an additional LSM callback, inode_free_security_rcu(), that is
   called when the inode's LSM state is released in the RCU free
   callback.

 - Refactor two LSM hooks to better fit the LSM return value patterns

   The vast majority of the LSM hooks follow the "return 0 on success,
   negative values on failure" pattern, however, there are a small
   handful that have unique return value behaviors which has caused
   confusion in the past and makes it difficult for the BPF verifier to
   properly vet BPF LSM programs. This includes patches to
   convert two of these"special" LSM hooks to the common 0/-ERRNO pattern.

 - Various cleanups and improvements

   A handful of patches to remove redundant code, better leverage the
   IS_ERR_OR_NULL() helper, add missing "static" markings, and do some
   minor style fixups.

* tag 'lsm-pr-20240911' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: (40 commits)
  security: Update file_set_fowner documentation
  fs: Fix file_set_fowner LSM hook inconsistencies
  lsm: Use IS_ERR_OR_NULL() helper function
  lsm: remove LSM_COUNT and LSM_CONFIG_COUNT
  ipe: Remove duplicated include in ipe.c
  lsm: replace indirect LSM hook calls with static calls
  lsm: count the LSMs enabled at compile time
  kernel: Add helper macros for loop unrolling
  init/main.c: Initialize early LSMs after arch code, static keys and calls.
  MAINTAINERS: add IPE entry with Fan Wu as maintainer
  documentation: add IPE documentation
  ipe: kunit test for parser
  scripts: add boot policy generation program
  ipe: enable support for fs-verity as a trust provider
  fsverity: expose verified fsverity built-in signatures to LSMs
  lsm: add security_inode_setintegrity() hook
  ipe: add support for dm-verity as a trust provider
  dm-verity: expose root hash digest and signature data to LSMs
  block,lsm: add LSM blob and new LSM hooks for block devices
  ipe: add permissive toggle
  ...
 2024-09-16 18:19:47 +02:00
Dave Airlie
26df39de93 amd-drm-next-6.12-2024-09-13: 
amdgpu:
 - GPUVM sync fixes
 - kdoc fixes
 - Misc spelling mistakes
 - Add some raven GFXOFF quirks
 - Use clamp helper
 - DC fixes
 - JPEG fixes
 - Process isolation fix
 - Queue reset fix
 - W=1 cleanup
 - SMU14 fixes
 - JPEG fixes
 
 amdkfd:
 - Fetch cacheline info from IP discovery
 - Queue reset fix
 - RAS fix
 - Document SVM events
 - CRIU fixes
 - Race fix in dma-buf handling
 
 drm:
 - dma-buf fd race fixes
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Merge tag 'amd-drm-next-6.12-2024-09-13' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.12-2024-09-13:

amdgpu:
- GPUVM sync fixes
- kdoc fixes
- Misc spelling mistakes
- Add some raven GFXOFF quirks
- Use clamp helper
- DC fixes
- JPEG fixes
- Process isolation fix
- Queue reset fix
- W=1 cleanup
- SMU14 fixes
- JPEG fixes

amdkfd:
- Fetch cacheline info from IP discovery
- Queue reset fix
- RAS fix
- Document SVM events
- CRIU fixes
- Race fix in dma-buf handling

drm:
- dma-buf fd race fixes

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

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240913134139.2861073-1-alexander.deucher@amd.com
 2024-09-17 01:06:10 +10:00
Linus Torvalds
adfc3ded5c for-6.12/io_uring-discard-20240913 
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Merge tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux

Pull io_uring async discard support from Jens Axboe:
 "Sitting on top of both the 6.12 block and io_uring core branches,
  here's support for async discard through io_uring.

  This allows applications to issue async discards, rather than rely on
  the blocking sync ioctl discards we already have. The sync support is
  difficult to use outside of idle/cleanup periods.

  On a real (but slow) device, testing shows the following results when
  compared to sync discard:

	qd64 sync discard: 21K IOPS, lat avg 3 msec (max 21 msec)
	qd64 async discard: 76K IOPS, lat avg 845 usec (max 2.2 msec)

	qd64 sync discard: 14K IOPS, lat avg 5 msec (max 25 msec)
	qd64 async discard: 56K IOPS, lat avg 1153 usec (max 3.6 msec)

  and synthetic null_blk testing with the same queue depth and block
  size settings as above shows:

	Type    Trim size       IOPS    Lat avg (usec)  Lat Max (usec)
	==============================================================
	sync    4k               144K       444            20314
	async   4k              1353K        47              595
	sync    1M                56K      1136            21031
	async   1M                94K       680              760"

* tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux:
  block: implement async io_uring discard cmd
  block: introduce blk_validate_byte_range()
  filemap: introduce filemap_invalidate_pages
  io_uring/cmd: give inline space in request to cmds
  io_uring/cmd: expose iowq to cmds
 2024-09-16 13:50:14 +02:00
Linus Torvalds
26bb0d3f38 for-6.12/block-20240913 
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Merge tag 'for-6.12/block-20240913' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - MD changes via Song:
      - md-bitmap refactoring (Yu Kuai)
      - raid5 performance optimization (Artur Paszkiewicz)
      - Other small fixes (Yu Kuai, Chen Ni)
      - Add a sysfs entry 'new_level' (Xiao Ni)
      - Improve information reported in /proc/mdstat (Mateusz Kusiak)

 - NVMe changes via Keith:
      - Asynchronous namespace scanning (Stuart)
      - TCP TLS updates (Hannes)
      - RDMA queue controller validation (Niklas)
      - Align field names to the spec (Anuj)
      - Metadata support validation (Puranjay)
      - A syntax cleanup (Shen)
      - Fix a Kconfig linking error (Arnd)
      - New queue-depth quirk (Keith)

 - Add missing unplug trace event (Keith)

 - blk-iocost fixes (Colin, Konstantin)

 - t10-pi modular removal and fixes (Alexey)

 - Fix for potential BLKSECDISCARD overflow (Alexey)

 - bio splitting cleanups and fixes (Christoph)

 - Deal with folios rather than rather than pages, speeding up how the
   block layer handles bigger IOs (Kundan)

 - Use spinlocks rather than bit spinlocks in zram (Sebastian, Mike)

 - Reduce zoned device overhead in ublk (Ming)

 - Add and use sendpages_ok() for drbd and nvme-tcp (Ofir)

 - Fix regression in partition error pointer checking (Riyan)

 - Add support for write zeroes and rotational status in nbd (Wouter)

 - Add Yu Kuai as new BFQ maintainer. The scheduler has been
   unmaintained for quite a while.

 - Various sets of fixes for BFQ (Yu Kuai)

 - Misc fixes and cleanups (Alvaro, Christophe, Li, Md Haris, Mikhail,
   Yang)

* tag 'for-6.12/block-20240913' of git://git.kernel.dk/linux: (120 commits)
  nvme-pci: qdepth 1 quirk
  block: fix potential invalid pointer dereference in blk_add_partition
  blk_iocost: make read-only static array vrate_adj_pct const
  block: unpin user pages belonging to a folio at once
  mm: release number of pages of a folio
  block: introduce folio awareness and add a bigger size from folio
  block: Added folio-ized version of bio_add_hw_page()
  block, bfq: factor out a helper to split bfqq in bfq_init_rq()
  block, bfq: remove local variable 'bfqq_already_existing' in bfq_init_rq()
  block, bfq: remove local variable 'split' in bfq_init_rq()
  block, bfq: remove bfq_log_bfqg()
  block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()
  block, bfq: fix procress reference leakage for bfqq in merge chain
  block, bfq: fix uaf for accessing waker_bfqq after splitting
  blk-throttle: support prioritized processing of metadata
  blk-throttle: remove last_low_overflow_time
  drbd: Add NULL check for net_conf to prevent dereference in state validation
  nvme-tcp: fix link failure for TCP auth
  blk-mq: add missing unplug trace event
  mtip32xx: Remove redundant null pointer checks in mtip_hw_debugfs_init()
  ...
 2024-09-16 13:33:06 +02:00
Linus Torvalds
3a4d319a8f for-6.12/io_uring-20240913 
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Merge tag 'for-6.12/io_uring-20240913' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:

 - NAPI fixes and cleanups (Pavel, Olivier)

 - Add support for absolute timeouts (Pavel)

 - Fixes for io-wq/sqpoll affinities (Felix)

 - Efficiency improvements for dealing with huge pages (Chenliang)

 - Support for a minwait mode, where the application essentially has two
   timouts - one smaller one that defines the batch timeout, and the
   overall large one similar to what we had before. This enables
   efficient use of batching based on count + timeout, while still
   working well with periods of less intensive workloads

 - Use ITER_UBUF for single segment sends

 - Add support for incremental buffer consumption. Right now each
   operation will always consume a full buffer. With incremental
   consumption, a recv/read operation only consumes the part of the
   buffer that it needs to satisfy the operation

 - Add support for GCOV for io_uring, to help retain a high coverage of
   test to code ratio

 - Fix regression with ocfs2, where an odd -EOPNOTSUPP wasn't correctly
   converted to a blocking retry

 - Add support for cloning registered buffers from one ring to another

 - Misc cleanups (Anuj, me)

* tag 'for-6.12/io_uring-20240913' of git://git.kernel.dk/linux: (35 commits)
  io_uring: add IORING_REGISTER_COPY_BUFFERS method
  io_uring/register: provide helper to get io_ring_ctx from 'fd'
  io_uring/rsrc: add reference count to struct io_mapped_ubuf
  io_uring/rsrc: clear 'slot' entry upfront
  io_uring/io-wq: inherit cpuset of cgroup in io worker
  io_uring/io-wq: do not allow pinning outside of cpuset
  io_uring/rw: drop -EOPNOTSUPP check in __io_complete_rw_common()
  io_uring/rw: treat -EOPNOTSUPP for IOCB_NOWAIT like -EAGAIN
  io_uring/sqpoll: do not allow pinning outside of cpuset
  io_uring/eventfd: move refs to refcount_t
  io_uring: remove unused rsrc_put_fn
  io_uring: add new line after variable declaration
  io_uring: add GCOV_PROFILE_URING Kconfig option
  io_uring/kbuf: add support for incremental buffer consumption
  io_uring/kbuf: pass in 'len' argument for buffer commit
  Revert "io_uring: Require zeroed sqe->len on provided-buffers send"
  io_uring/kbuf: move io_ring_head_to_buf() to kbuf.h
  io_uring/kbuf: add io_kbuf_commit() helper
  io_uring/kbuf: shrink nr_iovs/mode in struct buf_sel_arg
  io_uring: wire up min batch wake timeout
  ...
 2024-09-16 13:29:00 +02:00
Linus Torvalds
9020d0d844 vfs-6.12.mount 
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Merge tag 'vfs-6.12.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs mount updates from Christian Brauner:
 "Recently, we added the ability to list mounts in other mount
  namespaces and the ability to retrieve namespace file descriptors
  without having to go through procfs by deriving them from pidfds.

  This extends nsfs in two ways:

   (1) Add the ability to retrieve information about a mount namespace
       via NS_MNT_GET_INFO.

       This will return the mount namespace id and the number of mounts
       currently in the mount namespace. The number of mounts can be
       used to size the buffer that needs to be used for listmount() and
       is in general useful without having to actually iterate through
       all the mounts.

      The structure is extensible.

   (2) Add the ability to iterate through all mount namespaces over
       which the caller holds privilege returning the file descriptor
       for the next or previous mount namespace.

       To retrieve a mount namespace the caller must be privileged wrt
       to it's owning user namespace. This means that PID 1 on the host
       can list all mounts in all mount namespaces or that a container
       can list all mounts of its nested containers.

       Optionally pass a structure for NS_MNT_GET_INFO with
       NS_MNT_GET_{PREV,NEXT} to retrieve information about the mount
       namespace in one go.

  (1) and (2) can be implemented for other namespace types easily.

  Together with recent api additions this means one can iterate through
  all mounts in all mount namespaces without ever touching procfs.

  The commit message in 49224a345c ('Merge patch series "nsfs: iterate
  through mount namespaces"') contains example code how to do this"

* tag 'vfs-6.12.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  nsfs: iterate through mount namespaces
  file: add fput() cleanup helper
  fs: add put_mnt_ns() cleanup helper
  fs: allow mount namespace fd
 2024-09-16 11:15:26 +02:00
Linus Torvalds
ee25861f26 vfs-6.12.fallocate 
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Merge tag 'vfs-6.12.fallocate' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fallocate updates from Christian Brauner:
 "This contains work to try and cleanup some the fallocate mode
  handling. Currently, it confusingly mixes operation modes and an
  optional flag.

  The work here tries to better define operation modes and optional
  flags allowing the core and filesystem code to use switch statements
  to switch on the operation mode"

* tag 'vfs-6.12.fallocate' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  xfs: refactor xfs_file_fallocate
  xfs: move the xfs_is_always_cow_inode check into xfs_alloc_file_space
  xfs: call xfs_flush_unmap_range from xfs_free_file_space
  fs: sort out the fallocate mode vs flag mess
  ext4: remove tracing for FALLOC_FL_NO_HIDE_STALE
  block: remove checks for FALLOC_FL_NO_HIDE_STALE
 2024-09-16 09:34:08 +02:00
Linus Torvalds
8f72c31f45 vfs-6.12.misc 
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Merge tag 'vfs-6.12.misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

Pull misc vfs updates from Christian Brauner:
 "This contains the usual pile of misc updates:

  Features:

   - Add F_CREATED_QUERY fcntl() that allows userspace to query whether
     a file was actually created. Often userspace wants to know whether
     an O_CREATE request did actually create a file without using
     O_EXCL. The current logic is that to first attempts to open the
     file without O_CREAT | O_EXCL and if ENOENT is returned userspace
     tries again with both flags. If that succeeds all is well. If it
     now reports EEXIST it retries.

     That works fairly well but some corner cases make this more
     involved. If this operates on a dangling symlink the first openat()
     without O_CREAT | O_EXCL will return ENOENT but the second openat()
     with O_CREAT | O_EXCL will fail with EEXIST.

     The reason is that openat() without O_CREAT | O_EXCL follows the
     symlink while O_CREAT | O_EXCL doesn't for security reasons. So
     it's not something we can really change unless we add an explicit
     opt-in via O_FOLLOW which seems really ugly.

     All available workarounds are really nasty (fanotify, bpf lsm etc)
     so add a simple fcntl().

   - Try an opportunistic lookup for O_CREAT. Today, when opening a file
     we'll typically do a fast lookup, but if O_CREAT is set, the kernel
     always takes the exclusive inode lock. This was likely done with
     the expectation that O_CREAT means that we always expect to do the
     create, but that's often not the case. Many programs set O_CREAT
     even in scenarios where the file already exists (see related
     F_CREATED_QUERY patch motivation above).

     The series contained in the pr rearranges the pathwalk-for-open
     code to also attempt a fast_lookup in certain O_CREAT cases. If a
     positive dentry is found, the inode_lock can be avoided altogether
     and it can stay in rcuwalk mode for the last step_into.

   - Expose the 64 bit mount id via name_to_handle_at()

     Now that we provide a unique 64-bit mount ID interface in statx(2),
     we can now provide a race-free way for name_to_handle_at(2) to
     provide a file handle and corresponding mount without needing to
     worry about racing with /proc/mountinfo parsing or having to open a
     file just to do statx(2).

     While this is not necessary if you are using AT_EMPTY_PATH and
     don't care about an extra statx(2) call, users that pass full paths
     into name_to_handle_at(2) need to know which mount the file handle
     comes from (to make sure they don't try to open_by_handle_at a file
     handle from a different filesystem) and switching to AT_EMPTY_PATH
     would require allocating a file for every name_to_handle_at(2) call

   - Add a per dentry expire timeout to autofs

     There are two fairly well known automounter map formats, the autofs
     format and the amd format (more or less System V and Berkley).

     Some time ago Linux autofs added an amd map format parser that
     implemented a fair amount of the amd functionality. This was done
     within the autofs infrastructure and some functionality wasn't
     implemented because it either didn't make sense or required extra
     kernel changes. The idea was to restrict changes to be within the
     existing autofs functionality as much as possible and leave changes
     with a wider scope to be considered later.

     One of these changes is implementing the amd options:
      1) "unmount", expire this mount according to a timeout (same as
         the current autofs default).
      2) "nounmount", don't expire this mount (same as setting the
         autofs timeout to 0 except only for this specific mount) .
      3) "utimeout=<seconds>", expire this mount using the specified
         timeout (again same as setting the autofs timeout but only for
         this mount)

     To implement these options per-dentry expire timeouts need to be
     implemented for autofs indirect mounts. This is because all map
     keys (mounts) for autofs indirect mounts use an expire timeout
     stored in the autofs mount super block info. structure and all
     indirect mounts use the same expire timeout.

  Fixes:

   - Fix missing fput for FSCONFIG_SET_FD in autofs

   - Use param->file for FSCONFIG_SET_FD in coda

   - Delete the 'fs/netfs' proc subtreee when netfs module exits

   - Make sure that struct uid_gid_map fits into a single cacheline

   - Don't flush in-flight wb switches for superblocks without cgroup
     writeback

   - Correcting the idmapping mount example in the idmapping
     documentation

   - Fix a race between evice_inodes() and find_inode() and iput()

   - Refine the show_inode_state() macro definition in writeback code

   - Prevent dump_mapping() from accessing invalid dentry.d_name.name

   - Show actual source for debugfs in /proc/mounts

   - Annotate data-race of busy_poll_usecs in eventpoll

   - Don't WARN for racy path_noexec check in exec code

   - Handle OOM on mnt_warn_timestamp_expiry()

   - Fix some spelling in the iomap design documentation

   - Fix typo in procfs comment

   - Fix typo in fs/namespace.c comment

  Cleanups:

   - Add the VFS git tree to the MAINTAINERS file

   - Move FMODE_UNSIGNED_OFFSET to fop_flags freeing up another f_mode
     bit in struct file bringing us to 5 free f_mode bits

   - Remove the __I_DIO_WAKEUP bit from i_state flags as we can simplify
     the wait mechanism

   - Remove the unused path_put_init() helper

   - Replace a __u32 with u32 for s_fsnotify_mask as __u32 is uapi
     specific

   - Replace the unsigned long i_state member with a u32 i_state member
     in struct inode freeing up 4 bytes in struct inode. Instead of
     using the bit based wait apis we're now using the var event apis
     and using the individual bytes of the i_state member to wait on
     state changes

   - Explain how per-syscall AT_* flags should be allocated

   - Use in_group_or_capable() helper to simplify the posix acl mode
     update code

   - Switch to LIST_HEAD() in fsync_buffers_list() to simplify the code

   - Removed comment about d_rcu_to_refcount() as that function doesn't
     exist anymore

   - Add kernel documentation for lookup_fast()

   - Don't re-zero evenpoll fields

   - Remove outdated comment after close_fd()

   - Fix imprecise wording in comment about the pipe filesystem

   - Drop GFP_NOFAIL mode from alloc_page_buffers

   - Missing blank line warnings and struct declaration improved in
     file_table

   - Annotate struct poll_list with __counted_by()

   - Remove the unused read parameter in percpu-rwsem

   - Remove linux/prefetch.h include from direct-io code

   - Use kmemdup_array instead of kmemdup for multiple allocation in
     mnt_idmapping code

   - Remove unused mnt_cursor_del() declaration

  Performance tweaks:

   - Dodge smp_mb in break_lease and break_deleg in the common case

   - Only read fops once in fops_{get,put}()

   - Use RCU in ilookup()

   - Elide smp_mb in iversion handling in the common case

   - Drop one lock trip in evict()"

* tag 'vfs-6.12.misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs: (58 commits)
  uidgid: make sure we fit into one cacheline
  proc: Fix typo in the comment
  fs/pipe: Correct imprecise wording in comment
  fhandle: expose u64 mount id to name_to_handle_at(2)
  uapi: explain how per-syscall AT_* flags should be allocated
  fs: drop GFP_NOFAIL mode from alloc_page_buffers
  writeback: Refine the show_inode_state() macro definition
  fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name
  mnt_idmapping: Use kmemdup_array instead of kmemdup for multiple allocation
  netfs: Delete subtree of 'fs/netfs' when netfs module exits
  fs: use LIST_HEAD() to simplify code
  inode: make i_state a u32
  inode: port __I_LRU_ISOLATING to var event
  vfs: fix race between evice_inodes() and find_inode()&iput()
  inode: port __I_NEW to var event
  inode: port __I_SYNC to var event
  fs: reorder i_state bits
  fs: add i_state helpers
  MAINTAINERS: add the VFS git tree
  fs: s/__u32/u32/ for s_fsnotify_mask
  ...
 2024-09-16 08:35:09 +02:00
Linus Torvalds
114143a595 arm64 updates for 6.12 
ACPI:
 * Enable PMCG erratum workaround for HiSilicon HIP10 and 11 platforms.
 * Ensure arm64-specific IORT header is covered by MAINTAINERS.
 
 CPU Errata:
 * Enable workaround for hardware access/dirty issue on Ampere-1A cores.
 
 Memory management:
 * Define PHYSMEM_END to fix a crash in the amdgpu driver.
 * Avoid tripping over invalid kernel mappings on the kexec() path.
 * Userspace support for the Permission Overlay Extension (POE) using
   protection keys.
 
 Perf and PMUs:
 * Add support for the "fixed instruction counter" extension in the CPU
   PMU architecture.
 * Extend and fix the event encodings for Apple's M1 CPU PMU.
 * Allow LSM hooks to decide on SPE permissions for physical profiling.
 * Add support for the CMN S3 and NI-700 PMUs.
 
 Confidential Computing:
 * Add support for booting an arm64 kernel as a protected guest under
   Android's "Protected KVM" (pKVM) hypervisor.
 
 Selftests:
 * Fix vector length issues in the SVE/SME sigreturn tests
 * Fix build warning in the ptrace tests.
 
 Timers:
 * Add support for PR_{G,S}ET_TSC so that 'rr' can deal with
   non-determinism arising from the architected counter.
 
 Miscellaneous:
 * Rework our IPI-based CPU stopping code to try NMIs if regular IPIs
   don't succeed.
 * Minor fixes and cleanups.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "The highlights are support for Arm's "Permission Overlay Extension"
  using memory protection keys, support for running as a protected guest
  on Android as well as perf support for a bunch of new interconnect
  PMUs.

  Summary:

  ACPI:
   - Enable PMCG erratum workaround for HiSilicon HIP10 and 11
     platforms.
   - Ensure arm64-specific IORT header is covered by MAINTAINERS.

  CPU Errata:
   - Enable workaround for hardware access/dirty issue on Ampere-1A
     cores.

  Memory management:
   - Define PHYSMEM_END to fix a crash in the amdgpu driver.
   - Avoid tripping over invalid kernel mappings on the kexec() path.
   - Userspace support for the Permission Overlay Extension (POE) using
     protection keys.

  Perf and PMUs:
   - Add support for the "fixed instruction counter" extension in the
     CPU PMU architecture.
   - Extend and fix the event encodings for Apple's M1 CPU PMU.
   - Allow LSM hooks to decide on SPE permissions for physical
     profiling.
   - Add support for the CMN S3 and NI-700 PMUs.

  Confidential Computing:
   - Add support for booting an arm64 kernel as a protected guest under
     Android's "Protected KVM" (pKVM) hypervisor.

  Selftests:
   - Fix vector length issues in the SVE/SME sigreturn tests
   - Fix build warning in the ptrace tests.

  Timers:
   - Add support for PR_{G,S}ET_TSC so that 'rr' can deal with
     non-determinism arising from the architected counter.

  Miscellaneous:
   - Rework our IPI-based CPU stopping code to try NMIs if regular IPIs
     don't succeed.
   - Minor fixes and cleanups"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (94 commits)
  perf: arm-ni: Fix an NULL vs IS_ERR() bug
  arm64: hibernate: Fix warning for cast from restricted gfp_t
  arm64: esr: Define ESR_ELx_EC_* constants as UL
  arm64: pkeys: remove redundant WARN
  perf: arm_pmuv3: Use BR_RETIRED for HW branch event if enabled
  MAINTAINERS: List Arm interconnect PMUs as supported
  perf: Add driver for Arm NI-700 interconnect PMU
  dt-bindings/perf: Add Arm NI-700 PMU
  perf/arm-cmn: Improve format attr printing
  perf/arm-cmn: Clean up unnecessary NUMA_NO_NODE check
  arm64/mm: use lm_alias() with addresses passed to memblock_free()
  mm: arm64: document why pte is not advanced in contpte_ptep_set_access_flags()
  arm64: Expose the end of the linear map in PHYSMEM_END
  arm64: trans_pgd: mark PTEs entries as valid to avoid dead kexec()
  arm64/mm: Delete __init region from memblock.reserved
  perf/arm-cmn: Support CMN S3
  dt-bindings: perf: arm-cmn: Add CMN S3
  perf/arm-cmn: Refactor DTC PMU register access
  perf/arm-cmn: Make cycle counts less surprising
  perf/arm-cmn: Improve build-time assertion
  ...
 2024-09-16 06:55:07 +02:00
Jens Axboe
636119af94 io_uring: rename "copy buffers" to "clone buffers" 
A recent commit added support for copying registered buffers from one
ring to another. But that term is a bit confusing, as no copying of
buffer data is done here. What is being done is simply cloning the
buffer registrations from one ring to another.

Rename it while we still can, so that it's more descriptive. No
functional changes in this patch.

Fixes: 7cc2a6eadc ("io_uring: add IORING_REGISTER_COPY_BUFFERS method")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-09-14 08:51:15 -06:00
Ido Schimmel
c951a29f6b net: fib_rules: Add DSCP selector attribute 
The FIB rule TOS selector is implemented differently between IPv4 and
IPv6. In IPv4 it is used to match on the three "Type of Services" bits
specified in RFC 791, while in IPv6 is it is used to match on the six
DSCP bits specified in RFC 2474.

Add a new FIB rule attribute to allow matching on DSCP. The attribute
will be used to implement a 'dscp' selector in ip-rule with a consistent
behavior between IPv4 and IPv6.

For now, set the type of the attribute to 'NLA_REJECT' so that user
space will not be able to configure it. This restriction will be lifted
once both IPv4 and IPv6 support the new attribute.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20240911093748.3662015-2-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-13 21:15:44 -07:00
Chiara Meiohas
12fb1153c5 RDMA/nldev: Expose whether RDMA monitoring is supported 
Extend the "rdma sys" command to display whether RDMA
monitoring is supported.

RDMA monitoring is not supported in mlx4 because it does
not use the ib_device_set_netdev() API, which sends the
RDMA events.

Example output for kernel where monitoring is supported:
$ rdma sys show
netns shared privileged-qkey off monitor on copy-on-fork on

Example output for kernel where monitoring is not supported:
$ rdma sys show
netns shared privileged-qkey off monitor off copy-on-fork on

Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Link: https://patch.msgid.link/20240909173025.30422-8-michaelgur@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2024-09-13 08:29:34 +03:00
Chiara Meiohas
9cbed5aab5 RDMA/nldev: Add support for RDMA monitoring 
Introduce a new netlink command to allow rdma event monitoring.
The rdma events supported now are IB device
registration/unregistration and net device attachment/detachment.

Example output of rdma monitor and the commands which trigger
the events:

$ rdma monitor
$ rmmod mlx5_ib
[UNREGISTER]	dev 1 rocep8s0f1
[UNREGISTER]	dev 0 rocep8s0f0

$ modprobe mlx5_ib
[REGISTER]	dev 2 mlx5_0
[NETDEV_ATTACH]	dev 2 mlx5_0 port 1 netdev 4 eth2
[REGISTER]	dev 3 mlx5_1
[NETDEV_ATTACH]	dev 3 mlx5_1 port 1 netdev 5 eth3

$ devlink dev eswitch set pci/0000:08:00.0 mode switchdev
[UNREGISTER]	dev 2 rocep8s0f0
[REGISTER]	dev 4 mlx5_0
[NETDEV_ATTACH]	dev 4 mlx5_0 port 30 netdev 4 eth2

$ echo 4 > /sys/class/net/eth2/device/sriov_numvfs
[NETDEV_ATTACH]	dev 4 rdmap8s0f0 port 2 netdev 7 eth4
[NETDEV_ATTACH]	dev 4 rdmap8s0f0 port 3 netdev 8 eth5
[NETDEV_ATTACH]	dev 4 rdmap8s0f0 port 4 netdev 9 eth6
[NETDEV_ATTACH]	dev 4 rdmap8s0f0 port 5 netdev 10 eth7
[REGISTER]	dev 5 mlx5_0
[NETDEV_ATTACH]	dev 5 mlx5_0 port 1 netdev 11 eth8
[REGISTER]	dev 6 mlx5_0
[NETDEV_ATTACH]	dev 6 mlx5_0 port 1 netdev 12 eth9
[REGISTER]	dev 7 mlx5_0
[NETDEV_ATTACH]	dev 7 mlx5_0 port 1 netdev 13 eth10
[REGISTER]	dev 8 mlx5_0
[NETDEV_ATTACH]	dev 8 mlx5_0 port 1 netdev 14 eth11

$ echo 0 > /sys/class/net/eth2/device/sriov_numvfs
[UNREGISTER]	dev 5 rocep8s0f0v0
[UNREGISTER]	dev 6 rocep8s0f0v1
[UNREGISTER]	dev 7 rocep8s0f0v2
[UNREGISTER]	dev 8 rocep8s0f0v3
[NETDEV_DETACH]	dev 4 rdmap8s0f0 port 2
[NETDEV_DETACH]	dev 4 rdmap8s0f0 port 3
[NETDEV_DETACH]	dev 4 rdmap8s0f0 port 4
[NETDEV_DETACH]	dev 4 rdmap8s0f0 port 5

Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Link: https://patch.msgid.link/20240909173025.30422-7-michaelgur@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2024-09-13 08:29:14 +03:00
Jakub Kicinski
b215580789 uapi: libc-compat: remove ipx leftovers 
The uAPI headers for IPX were deleted 3 years ago in
commit 6c9b408447 ("net: Remove net/ipx.h and uapi/linux/ipx.h header files")
Delete the leftover defines from libc-compat.h

Link: https://patch.msgid.link/20240911002142.1508694-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-12 20:28:46 -07:00
Jakub Kicinski
46ae4d0a48 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Cross-merge networking fixes after downstream PR.

No conflicts (sort of) and no adjacent changes.

This merge reverts commit b3c9e65eb2 ("net: hsr: remove seqnr_lock")
from net, as it was superseded by
commit 430d67bdcb ("net: hsr: Use the seqnr lock for frames received via interlink port.")
in net-next.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-12 17:11:24 -07:00
Jens Axboe
7cc2a6eadc io_uring: add IORING_REGISTER_COPY_BUFFERS method 
Buffers can get registered with io_uring, which allows to skip the
repeated pin_pages, unpin/unref pages for each O_DIRECT operation. This
reduces the overhead of O_DIRECT IO.

However, registrering buffers can take some time. Normally this isn't an
issue as it's done at initialization time (and hence less critical), but
for cases where rings can be created and destroyed as part of an IO
thread pool, registering the same buffers for multiple rings become a
more time sensitive proposition. As an example, let's say an application
has an IO memory pool of 500G. Initial registration takes:

Got 500 huge pages (each 1024MB)
Registered 500 pages in 409 msec

or about 0.4 seconds. If we go higher to 900 1GB huge pages being
registered:

Registered 900 pages in 738 msec

which is, as expected, a fully linear scaling.

Rather than have each ring pin/map/register the same buffer pool,
provide an io_uring_register(2) opcode to simply duplicate the buffers
that are registered with another ring. Adding the same 900GB of
registered buffers to the target ring can then be accomplished in:

Copied 900 pages in 17 usec

While timing differs a bit, this provides around a 25,000-40,000x
speedup for this use case.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-09-12 10:14:15 -06:00
Mark Brown
f10d52087c
spi: Merge up fixes 
A patch for Qualcomm depends on some fixes.
 2024-09-12 12:38:44 +01:00
Parthiban Veerasooran
8f9bf857e4 net: ethernet: oa_tc6: implement internal PHY initialization 
Internal PHY is initialized as per the PHY register capability supported
by the MAC-PHY. Direct PHY Register Access Capability indicates if PHY
registers are directly accessible within the SPI register memory space.
Indirect PHY Register Access Capability indicates if PHY registers are
indirectly accessible through the MDIO/MDC registers MDIOACCn defined in
OPEN Alliance specification. Currently the direct register access is only
supported.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@microchip.com>
Link: https://patch.msgid.link/20240909082514.262942-7-Parthiban.Veerasooran@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-11 20:53:43 -07:00
Mina Almasry
d0caf9876a netdev: add dmabuf introspection 
Add dmabuf information to page_pool stats:

$ ./cli.py --spec ../netlink/specs/netdev.yaml --dump page-pool-get
...
 {'dmabuf': 10,
  'id': 456,
  'ifindex': 3,
  'inflight': 1023,
  'inflight-mem': 4190208},
 {'dmabuf': 10,
  'id': 455,
  'ifindex': 3,
  'inflight': 1023,
  'inflight-mem': 4190208},
 {'dmabuf': 10,
  'id': 454,
  'ifindex': 3,
  'inflight': 1023,
  'inflight-mem': 4190208},
 {'dmabuf': 10,
  'id': 453,
  'ifindex': 3,
  'inflight': 1023,
  'inflight-mem': 4190208},
 {'dmabuf': 10,
  'id': 452,
  'ifindex': 3,
  'inflight': 1023,
  'inflight-mem': 4190208},
 {'dmabuf': 10,
  'id': 451,
  'ifindex': 3,
  'inflight': 1023,
  'inflight-mem': 4190208},
 {'dmabuf': 10,
  'id': 450,
  'ifindex': 3,
  'inflight': 1023,
  'inflight-mem': 4190208},
 {'dmabuf': 10,
  'id': 449,
  'ifindex': 3,
  'inflight': 1023,
  'inflight-mem': 4190208},

And queue stats:

$ ./cli.py --spec ../netlink/specs/netdev.yaml --dump queue-get
...
{'dmabuf': 10, 'id': 8, 'ifindex': 3, 'type': 'rx'},
{'dmabuf': 10, 'id': 9, 'ifindex': 3, 'type': 'rx'},
{'dmabuf': 10, 'id': 10, 'ifindex': 3, 'type': 'rx'},
{'dmabuf': 10, 'id': 11, 'ifindex': 3, 'type': 'rx'},
{'dmabuf': 10, 'id': 12, 'ifindex': 3, 'type': 'rx'},
{'dmabuf': 10, 'id': 13, 'ifindex': 3, 'type': 'rx'},
{'dmabuf': 10, 'id': 14, 'ifindex': 3, 'type': 'rx'},
{'dmabuf': 10, 'id': 15, 'ifindex': 3, 'type': 'rx'},

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20240910171458.219195-14-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-11 20:44:32 -07:00
Mina Almasry
678f6e28b5 net: add SO_DEVMEM_DONTNEED setsockopt to release RX frags 
Add an interface for the user to notify the kernel that it is done
reading the devmem dmabuf frags returned as cmsg. The kernel will
drop the reference on the frags to make them available for reuse.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Kaiyuan Zhang <kaiyuanz@google.com>
Signed-off-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20240910171458.219195-11-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-11 20:44:32 -07:00
Mina Almasry
8f0b3cc9a4 tcp: RX path for devmem TCP 
In tcp_recvmsg_locked(), detect if the skb being received by the user
is a devmem skb. In this case - if the user provided the MSG_SOCK_DEVMEM
flag - pass it to tcp_recvmsg_devmem() for custom handling.

tcp_recvmsg_devmem() copies any data in the skb header to the linear
buffer, and returns a cmsg to the user indicating the number of bytes
returned in the linear buffer.

tcp_recvmsg_devmem() then loops over the unaccessible devmem skb frags,
and returns to the user a cmsg_devmem indicating the location of the
data in the dmabuf device memory. cmsg_devmem contains this information:

1. the offset into the dmabuf where the payload starts. 'frag_offset'.
2. the size of the frag. 'frag_size'.
3. an opaque token 'frag_token' to return to the kernel when the buffer
is to be released.

The pages awaiting freeing are stored in the newly added
sk->sk_user_frags, and each page passed to userspace is get_page()'d.
This reference is dropped once the userspace indicates that it is
done reading this page.  All pages are released when the socket is
destroyed.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Kaiyuan Zhang <kaiyuanz@google.com>
Signed-off-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20240910171458.219195-10-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-11 20:44:32 -07:00
Mina Almasry
3efd7ab46d net: netdev netlink api to bind dma-buf to a net device 
API takes the dma-buf fd as input, and binds it to the netdevice. The
user can specify the rx queues to bind the dma-buf to.

Suggested-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20240910171458.219195-3-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-11 20:44:31 -07:00
Tejun Heo
0b1777f0fa Merge branch 'tip/sched/core' into sched_ext/for-6.12 
Pull in tip/sched/core to resolve two merge conflicts:

- 96fd6c65ef ("sched: Factor out update_other_load_avgs() from __update_blocked_others()")
  5d871a6399 ("sched/fair: Move effective_cpu_util() and effective_cpu_util() in fair.c")

  A simple context conflict. The former added __update_blocked_others() in
  the same #ifdef CONFIG_SMP block that effective_cpu_util() and
  sched_cpu_util() are in and the latter moved those functions to fair.c.
  This makes __update_blocked_others() more out of place. Will follow up
  with a patch to relocate.

- 96fd6c65ef ("sched: Factor out update_other_load_avgs() from __update_blocked_others()")
  84d265281d ("sched/pelt: Use rq_clock_task() for hw_pressure")

  The former factored out the body of __update_blocked_others() into
  update_other_load_avgs(). The latter changed how update_hw_load_avg() is
  called in the body. Resolved by applying the change to
  update_other_load_avgs() instead.

Signed-off-by: Tejun Heo <tj@kernel.org>
 2024-09-11 08:43:26 -10:00
Pavel Begunkov
50c52250e2 block: implement async io_uring discard cmd 
io_uring allows implementing custom file specific asynchronous
operations via the fops->uring_cmd callback, a.k.a. IORING_OP_URING_CMD
requests or just io_uring commands. Use it to add support for async
discards.

Normally, it first tries to queue up bios in a non-blocking context,
and if that fails, we'd retry from a blocking context by returning
-EAGAIN to the core io_uring. We always get the result from bios
asynchronously by setting a custom bi_end_io callback, at which point
we drag the request into the task context to either reissue or complete
it and post a completion to the user.

Unlike ioctl(BLKDISCARD) with stronger guarantees against races, we only
do a best effort attempt to invalidate page cache, and it can race with
any writes and reads and leave page cache stale. It's the same kind of
races we allow to direct writes.

Also, apart from cases where discarding is not allowed at all, e.g.
discards are not supported or the file/device is read only, the user
should assume that the sector range on disk is not valid anymore, even
when an error was returned to the user.

Suggested-by: Conrad Meyer <conradmeyer@meta.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/2b5210443e4fa0257934f73dfafcc18a77cd0e09.1726072086.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-09-11 10:45:28 -06:00
Jens Axboe
6d0f8dcb3a Merge branch 'for-6.12/io_uring' into for-6.12/io_uring-discard 
* for-6.12/io_uring: (31 commits)
  io_uring/io-wq: inherit cpuset of cgroup in io worker
  io_uring/io-wq: do not allow pinning outside of cpuset
  io_uring/rw: drop -EOPNOTSUPP check in __io_complete_rw_common()
  io_uring/rw: treat -EOPNOTSUPP for IOCB_NOWAIT like -EAGAIN
  io_uring/sqpoll: do not allow pinning outside of cpuset
  io_uring/eventfd: move refs to refcount_t
  io_uring: remove unused rsrc_put_fn
  io_uring: add new line after variable declaration
  io_uring: add GCOV_PROFILE_URING Kconfig option
  io_uring/kbuf: add support for incremental buffer consumption
  io_uring/kbuf: pass in 'len' argument for buffer commit
  Revert "io_uring: Require zeroed sqe->len on provided-buffers send"
  io_uring/kbuf: move io_ring_head_to_buf() to kbuf.h
  io_uring/kbuf: add io_kbuf_commit() helper
  io_uring/kbuf: shrink nr_iovs/mode in struct buf_sel_arg
  io_uring: wire up min batch wake timeout
  io_uring: add support for batch wait timeout
  io_uring: implement our own schedule timeout handling
  io_uring: move schedule wait logic into helper
  io_uring: encapsulate extraneous wait flags into a separate struct
  ...
 2024-09-11 10:42:40 -06:00
Jens Axboe
318ad4283a Merge branch 'for-6.12/block' into for-6.12/io_uring-discard 
* for-6.12/block: (115 commits)
  block: unpin user pages belonging to a folio at once
  mm: release number of pages of a folio
  block: introduce folio awareness and add a bigger size from folio
  block: Added folio-ized version of bio_add_hw_page()
  block, bfq: factor out a helper to split bfqq in bfq_init_rq()
  block, bfq: remove local variable 'bfqq_already_existing' in bfq_init_rq()
  block, bfq: remove local variable 'split' in bfq_init_rq()
  block, bfq: remove bfq_log_bfqg()
  block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()
  block, bfq: fix procress reference leakage for bfqq in merge chain
  block, bfq: fix uaf for accessing waker_bfqq after splitting
  blk-throttle: support prioritized processing of metadata
  blk-throttle: remove last_low_overflow_time
  drbd: Add NULL check for net_conf to prevent dereference in state validation
  blk-mq: add missing unplug trace event
  mtip32xx: Remove redundant null pointer checks in mtip_hw_debugfs_init()
  md: Add new_level sysfs interface
  zram: Shrink zram_table_entry::flags.
  zram: Remove ZRAM_LOCK
  zram: Replace bit spinlocks with a spinlock_t.
  ...
 2024-09-11 10:42:37 -06:00
Christian Loehle
6ebf2d021a sched/deadline: Clarify nanoseconds in uapi 
Specify the time values of the deadline parameters of deadline,
runtime, and period as being in nanoseconds explicitly as they always
have been.

Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240813144348.1180344-3-christian.loehle@arm.com
 2024-09-11 11:23:56 +02:00
Thomas Zimmermann
61b86391fb Merge drm/drm-next into drm-misc-next 
Backmerging to get fixes from v6.12-rc7.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
 2024-09-11 09:48:49 +02:00
Simona Vetter
b615b9c36c Linux 6.11-rc7 
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Merge v6.11-rc7 into drm-next

Thomas needs 5a498d4d06 ("drm/fbdev-dma: Only install deferred I/O
if necessary") in drm-misc, so start the backmerge cascade.

Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch>
 2024-09-11 09:18:15 +02:00
Bjorn Helgaas
87f10faf16 PCI: Rename CRS Completion Status to RRS 
PCIe r6.0 changed the abbreviation for "Configuration Request Retry Status"
Completion Status from "CRS" to "RRS" and uses the terminology of
"Configuration RRS Software Visibility" instead of "CRS Software
Visibility".

Align the Linux usage with the r6.0 spec language.  No functional change
intended.

It's confusing to make this change, but I think "RRS" *is* a better
abbreviation because it was easy to interpret "CRS" as "Completion Retry
Status", which really didn't make any sense.

Link: https://lore.kernel.org/r/20240827234848.4429-4-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
 2024-09-10 19:52:30 -05:00
Jason Xing
be8e9eb375 net-timestamp: introduce SOF_TIMESTAMPING_OPT_RX_FILTER flag 
introduce a new flag SOF_TIMESTAMPING_OPT_RX_FILTER in the receive
path. User can set it with SOF_TIMESTAMPING_SOFTWARE to filter
out rx software timestamp report, especially after a process turns on
netstamp_needed_key which can time stamp every incoming skb.

Previously, we found out if an application starts first which turns on
netstamp_needed_key, then another one only passing SOF_TIMESTAMPING_SOFTWARE
could also get rx timestamp. Now we handle this case by introducing this
new flag without breaking users.

Quoting Willem to explain why we need the flag:
"why a process would want to request software timestamp reporting, but
not receive software timestamp generation. The only use I see is when
the application does request
SOF_TIMESTAMPING_SOFTWARE | SOF_TIMESTAMPING_TX_SOFTWARE."

Similarly, this new flag could also be used for hardware case where we
can set it with SOF_TIMESTAMPING_RAW_HARDWARE, then we won't receive
hardware receive timestamp.

Another thing about errqueue in this patch I have a few words to say:
In this case, we need to handle the egress path carefully, or else
reporting the tx timestamp will fail. Egress path and ingress path will
finally call sock_recv_timestamp(). We have to distinguish them.
Errqueue is a good indicator to reflect the flow direction.

Suggested-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20240909015612.3856-2-kerneljasonxing@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-10 16:55:23 -07:00
Takashi Iwai
5516e3f476 Merge branch 'for-linus' into for-next 
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 2024-09-10 10:28:00 +02:00
Cindy Lu
2f87e9cf0c vdpa: support set mac address from vdpa tool 
Add new UAPI to support the mac address from vdpa tool
Function vdpa_nl_cmd_dev_attr_set_doit() will get the
new MAC address from the vdpa tool and then set it to the device.

The usage is: vdpa dev set name vdpa_name mac **:**:**:**:**:**

Here is example:
root@L1# vdpa -jp dev config show vdpa0
{
    "config": {
        "vdpa0": {
            "mac": "82:4d:e9:5d:d7:e6",
            "link ": "up",
            "link_announce ": false,
            "mtu": 1500
        }
    }
}

root@L1# vdpa dev set name vdpa0 mac 00:11:22:33:44:55

root@L1# vdpa -jp dev config show vdpa0
{
    "config": {
        "vdpa0": {
            "mac": "00:11:22:33:44:55",
            "link ": "up",
            "link_announce ": false,
            "mtu": 1500
        }
    }
}

Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20240731031653.1047692-2-lulu@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
 2024-09-10 02:51:48 -04:00
zhenwei pi
74c025c5d7 virtio_balloon: introduce memory scan/reclaim info 
Expose memory scan/reclaim information to the host side via virtio
balloon device.

Now we have a metric to analyze the memory performance:

y: counter increases
n: counter does not changes
h: the rate of counter change is high
l: the rate of counter change is low

OOM: VIRTIO_BALLOON_S_OOM_KILL
STALL: VIRTIO_BALLOON_S_ALLOC_STALL
ASCAN: VIRTIO_BALLOON_S_SCAN_ASYNC
DSCAN: VIRTIO_BALLOON_S_SCAN_DIRECT
ARCLM: VIRTIO_BALLOON_S_RECLAIM_ASYNC
DRCLM: VIRTIO_BALLOON_S_RECLAIM_DIRECT

- OOM[y], STALL[*], ASCAN[*], DSCAN[*], ARCLM[*], DRCLM[*]:
  the guest runs under really critial memory pressure

- OOM[n], STALL[h], ASCAN[*], DSCAN[l], ARCLM[*], DRCLM[l]:
  the memory allocation stalls due to cgroup, not the global memory
  pressure.

- OOM[n], STALL[h], ASCAN[*], DSCAN[h], ARCLM[*], DRCLM[h]:
  the memory allocation stalls due to global memory pressure. The
  performance gets hurt a lot. A high ratio between DRCLM/DSCAN shows
  quite effective memory reclaiming.

- OOM[n], STALL[h], ASCAN[*], DSCAN[h], ARCLM[*], DRCLM[l]:
  the memory allocation stalls due to global memory pressure.
  the ratio between DRCLM/DSCAN gets low, the guest OS is thrashing
  heavily, the serious case leads poor performance and difficult
  trouble shooting. Ex, sshd may block on memory allocation when
  accepting new connections, a user can't login a VM by ssh command.

- OOM[n], STALL[n], ASCAN[h], DSCAN[n], ARCLM[l], DRCLM[n]:
  the low ratio between ARCLM/ASCAN shows that the guest tries to
  reclaim more memory, but it can't. Once more memory is required in
  future, it will struggle to reclaim memory.

Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20240423034109.1552866-5-pizhenwei@bytedance.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2024-09-10 02:51:48 -04:00
zhenwei pi
c5b70a26aa virtio_balloon: introduce memory allocation stall counter 
Memory allocation stall counter represents the performance/latency of
memory allocation, expose this counter to the host side by virtio
balloon device via out-of-bound way.

Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20240423034109.1552866-4-pizhenwei@bytedance.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2024-09-10 02:51:47 -04:00
zhenwei pi
6cf1c97dad virtio_balloon: introduce oom-kill invocations 
When the guest OS runs under critical memory pressure, the guest
starts to kill processes. A guest monitor agent may scan 'oom_kill'
from /proc/vmstat, and reports the OOM KILL event. However, the agent
may be killed and we will loss this critical event(and the later
events).

For now we can also grep for magic words in guest kernel log from host
side. Rather than this unstable way, virtio balloon reports OOM-KILL
invocations instead.

Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20240423034109.1552866-3-pizhenwei@bytedance.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2024-09-10 02:51:47 -04:00
Greg Kroah-Hartman
f299cd11f7 Merge 6.11-rc7 into usb-next 
We need the USB fixes in here as well, and this also resolves the merge
conflict in:
	drivers/usb/typec/ucsi/ucsi.c

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-09-09 08:40:22 +02:00
Greg Kroah-Hartman
895b4fae93 Merge 6.11-rc7 into char-misc-next 
We need the char-misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-09-09 08:36:23 +02:00
Mahesh Bandewar
c259acab83 ptp/ioctl: support MONOTONIC{,_RAW} timestamps for PTP_SYS_OFFSET_EXTENDED 
The ability to read the PHC (Physical Hardware Clock) alongside
multiple system clocks is currently dependent on the specific
hardware architecture. This limitation restricts the use of
PTP_SYS_OFFSET_PRECISE to certain hardware configurations.

The generic soultion which would work across all architectures
is to read the PHC along with the latency to perform PHC-read as
offered by PTP_SYS_OFFSET_EXTENDED which provides pre and post
timestamps.  However, these timestamps are currently limited
to the CLOCK_REALTIME timebase. Since CLOCK_REALTIME is affected
by NTP (or similar time synchronization services), it can
experience significant jumps forward or backward. This hinders
the precise latency measurements that PTP_SYS_OFFSET_EXTENDED
is designed to provide.

This problem could be addressed by supporting MONOTONIC_RAW
timestamps within PTP_SYS_OFFSET_EXTENDED. Unlike CLOCK_REALTIME
or CLOCK_MONOTONIC, the MONOTONIC_RAW timebase is unaffected
by NTP adjustments.

This enhancement can be implemented by utilizing one of the three
reserved words within the PTP_SYS_OFFSET_EXTENDED struct to pass
the clock-id for timestamps.  The current behavior aligns with
clock-id for CLOCK_REALTIME timebase (value of 0), ensuring
backward compatibility of the UAPI.

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: Vadim Fedorenko <vadfed@meta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2024-09-08 18:40:33 +01:00
Jakub Kicinski
f723224742 netfilter pull request 24-09-06 
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Merge tag 'nf-next-24-09-06' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next

Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following patchset contains Netfilter updates for net-next:

Patch #1 adds ctnetlink support for kernel side filtering for
	 deletions, from Changliang Wu.

Patch #2 updates nft_counter support to Use u64_stats_t,
	 from Sebastian Andrzej Siewior.

Patch #3 uses kmemdup_array() in all xtables frontends,
	 from Yan Zhen.

Patch #4 is a oneliner to use ERR_CAST() in nf_conntrack instead
	 opencoded casting, from Shen Lichuan.

Patch #5 removes unused argument in nftables .validate interface,
	 from Florian Westphal.

Patch #6 is a oneliner to correct a typo in nftables kdoc,
	 from Simon Horman.

Patch #7 fixes missing kdoc in nftables, also from Simon.

Patch #8 updates nftables to handle timeout less than CONFIG_HZ.

Patch #9 rejects element expiration if timeout is zero,
	 otherwise it is silently ignored.

Patch #10 disallows element expiration larger than timeout.

Patch #11 removes unnecessary READ_ONCE annotation while mutex is held.

Patch #12 adds missing READ_ONCE/WRITE_ONCE annotation in dynset.

Patch #13 annotates data-races around element expiration.

Patch #14 allocates timeout and expiration in one single set element
	  extension, they are tighly couple, no reason to keep them
	  separated anymore.

Patch #15 updates nftables to interpret zero timeout element as never
	  times out. Note that it is already possible to declare sets
	  with elements that never time out but this generalizes to all
	  kind of set with timeouts.

Patch #16 supports for element timeout and expiration updates.

* tag 'nf-next-24-09-06' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  netfilter: nf_tables: set element timeout update support
  netfilter: nf_tables: zero timeout means element never times out
  netfilter: nf_tables: consolidate timeout extension for elements
  netfilter: nf_tables: annotate data-races around element expiration
  netfilter: nft_dynset: annotate data-races around set timeout
  netfilter: nf_tables: remove annotation to access set timeout while holding lock
  netfilter: nf_tables: reject expiration higher than timeout
  netfilter: nf_tables: reject element expiration with no timeout
  netfilter: nf_tables: elements with timeout below CONFIG_HZ never expire
  netfilter: nf_tables: Add missing Kernel doc
  netfilter: nf_tables: Correct spelling in nf_tables.h
  netfilter: nf_tables: drop unused 3rd argument from validate callback ops
  netfilter: conntrack: Convert to use ERR_CAST()
  netfilter: Use kmemdup_array instead of kmemdup for multiple allocation
  netfilter: nft_counter: Use u64_stats_t for statistic.
  netfilter: ctnetlink: support CTA_FILTER for flush
====================

Link: https://patch.msgid.link/20240905232920.5481-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-06 18:39:31 -07:00
Philip Yang
663b0f1e14 drm/amdkfd: Document and define SVM events message macro 
Document how to use SMI system management interface to enable and
receive SVM events. Document SVM event triggers.

Define SVM events message string format macro that could be used by user
mode for sscanf to parse the event. Add it to uAPI header file to make
it obvious that is changing uAPI in future.

No functional changes.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2024-09-06 17:55:05 -04:00
Linus Torvalds
703896be30 sound fixes for 6.11-rc7 
Hopefully the last PR for 6.11, at least for this level of amount.
 
 In addition to the usual HD-audio quirks, there are more changes in
 ASoC, but all look small and device-specific fixes, and nothing stands
 out.  The only slightly big change is sunxi I2S fix, which looks quite
 safe to apply, too.
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Merge tag 'sound-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Hopefully the last PR for 6.11, at least for this level of amount.

  In addition to the usual HD-audio quirks, there are more changes in
  ASoC, but all look small and device-specific fixes, and nothing stands
  out. The only slightly big change is sunxi I2S fix, which looks quite
  safe to apply, too"

* tag 'sound-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
  ALSA: hda/realtek - Fix inactive headset mic jack for ASUS Vivobook 15 X1504VAP
  ALSA: hda/realtek: Support mute LED on HP Laptop 14-dq2xxx
  ALSA: hda/realtek: Enable Mute Led for HP Victus 15-fb1xxx
  ALSA: hda/realtek: extend quirks for Clevo V5[46]0
  ASoC: codecs: lpass-va-macro: set the default codec version for sm8250
  ALSA: hda: add HDMI codec ID for Intel PTL
  ALSA: hda/realtek: add patch for internal mic in Lenovo V145
  ASoC: sunxi: sun4i-i2s: fix LRCLK polarity in i2s mode
  ASoC: amd: yc: Add a quirk for MSI Bravo 17 (D7VEK)
  ASoC: mediatek: mt8188-mt6359: Modify key
  ASoc: SOF: topology: Clear SOF link platform name upon unload
  ALSA: hda/conexant: Add pincfg quirk to enable top speakers on Sirius devices
  ASoC: SOF: ipc: replace "enum sof_comp_type" field with "uint32_t"
  ASoC: fix module autoloading
  ASoC: tda7419: fix module autoloading
  ASoC: google: fix module autoloading
  ASoC: intel: fix module autoloading
  ASoC: tegra: Fix CBB error during probe()
  ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object
  ASoC: Intel: soc-acpi-cht: Make Lenovo Yoga Tab 3 X90F DMI match less strict
  ...
 2024-09-06 11:56:03 -07:00
Wouter Verhelst
e49dacc71e nbd: implement the WRITE_ZEROES command 
The NBD protocol defines a message for zeroing out a region of an export

Add support to the kernel driver for that message.

Signed-off-by: Wouter Verhelst <w@uter.be>
Cc: Eric Blake <eblake@redhat.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20240812133032.115134-3-w@uter.be
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-09-06 08:31:40 -06:00
Takashi Iwai
c491b044cf ASoC: Fixes for v6.11 
A larger set of fixes than I'd like at this point, but mainly due to
 people working on fixing module autoloading by adding missing exports of
 ID tables rather than anything particularly concerning.  There are some
 other runtime fixes and quirks, and a tweak to the ABI definition for
 SOF which ensures that a struct layout doesn't vary depending on the
 architecture of the host.
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Merge tag 'asoc-fix-v6.11-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.11

A larger set of fixes than I'd like at this point, but mainly due to
people working on fixing module autoloading by adding missing exports of
ID tables rather than anything particularly concerning.  There are some
other runtime fixes and quirks, and a tweak to the ABI definition for
SOF which ensures that a struct layout doesn't vary depending on the
architecture of the host.
 2024-09-06 08:24:56 +02:00
Dave Airlie
ca10367a5a A zpos normalization fix for komeda, a register bitmask fix for nouveau, 
a memory leak fix for imagination, three fixes for the recent bridge
 HDMI work, a potential DoS fix and a cache coherency for panthor, a
 change of panel compatible and a deferred-io fix when used with
 non-highmem memory.
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Merge tag 'drm-misc-fixes-2024-09-05' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

A zpos normalization fix for komeda, a register bitmask fix for nouveau,
a memory leak fix for imagination, three fixes for the recent bridge
HDMI work, a potential DoS fix and a cache coherency for panthor, a
change of panel compatible and a deferred-io fix when used with
non-highmem memory.

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

From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240905-original-radical-guan-e7a2ae@houat
 2024-09-06 11:25:46 +10:00
Hans Verkuil
c7a2925873 media: input: serio.h: add SERIO_EXTRON_DA_HD_PLUS 
Add a new serio ID for the Extron DA HD 4K Plus series of 4K HDMI
Distribution Amplifiers. These devices support CEC over the serial
port, so a new serio ID is needed to be able to associate the CEC
driver.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
 2024-09-05 20:11:43 +02:00
Erling Ljunggren
6fe0593bfc media: videodev2.h: add V4L2_CAP_EDID 
Add capability flag to indicate that the device is an EDID-only device.

Signed-off-by: Erling Ljunggren <hljunggr@cisco.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
 2024-09-05 20:10:34 +02:00
Aleksa Sarai
4356d575ef fhandle: expose u64 mount id to name_to_handle_at(2) 
Now that we provide a unique 64-bit mount ID interface in statx(2), we
can now provide a race-free way for name_to_handle_at(2) to provide a
file handle and corresponding mount without needing to worry about
racing with /proc/mountinfo parsing or having to open a file just to do
statx(2).

While this is not necessary if you are using AT_EMPTY_PATH and don't
care about an extra statx(2) call, users that pass full paths into
name_to_handle_at(2) need to know which mount the file handle comes from
(to make sure they don't try to open_by_handle_at a file handle from a
different filesystem) and switching to AT_EMPTY_PATH would require
allocating a file for every name_to_handle_at(2) call, turning

  err = name_to_handle_at(-EBADF, "/foo/bar/baz", &handle, &mntid,
                          AT_HANDLE_MNT_ID_UNIQUE);

into

  int fd = openat(-EBADF, "/foo/bar/baz", O_PATH | O_CLOEXEC);
  err1 = name_to_handle_at(fd, "", &handle, &unused_mntid, AT_EMPTY_PATH);
  err2 = statx(fd, "", AT_EMPTY_PATH, STATX_MNT_ID_UNIQUE, &statxbuf);
  mntid = statxbuf.stx_mnt_id;
  close(fd);

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Link: https://lore.kernel.org/r/20240828-exportfs-u64-mount-id-v3-2-10c2c4c16708@cyphar.com
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
 2024-09-05 11:39:17 +02:00
Aleksa Sarai
b4fef22c2f uapi: explain how per-syscall AT_* flags should be allocated 
Unfortunately, the way we have gone about adding new AT_* flags has
been a little messy. In the beginning, all of the AT_* flags had generic
meanings and so it made sense to share the flag bits indiscriminately.
However, we inevitably ran into syscalls that needed their own
syscall-specific flags. Due to the lack of a planned out policy, we
ended up with the following situations:

 * Existing syscalls adding new features tended to use new AT_* bits,
   with some effort taken to try to re-use bits for flags that were so
   obviously syscall specific that they only make sense for a single
   syscall (such as the AT_EACCESS/AT_REMOVEDIR/AT_HANDLE_FID triplet).

   Given the constraints of bitflags, this works well in practice, but
   ideally (to avoid future confusion) we would plan ahead and define a
   set of "per-syscall bits" ahead of time so that when allocating new
   bits we don't end up with a complete mish-mash of which bits are
   supposed to be per-syscall and which aren't.

 * New syscalls dealt with this in several ways:

   - Some syscalls (like renameat2(2), move_mount(2), fsopen(2), and
     fspick(2)) created their separate own flag spaces that have no
     overlap with the AT_* flags. Most of these ended up allocating
     their bits sequentually.

     In the case of move_mount(2) and fspick(2), several flags have
     identical meanings to AT_* flags but were allocated in their own
     flag space.

     This makes sense for syscalls that will never share AT_* flags, but
     for some syscalls this leads to duplication with AT_* flags in a
     way that could cause confusion (if renameat2(2) grew a
     RENAME_EMPTY_PATH it seems likely that users could mistake it for
     AT_EMPTY_PATH since it is an *at(2) syscall).

   - Some syscalls unfortunately ended up both creating their own flag
     space while also using bits from other flag spaces. The most
     obvious example is open_tree(2), where the standard usage ends up
     using flags from *THREE* separate flag spaces:

       open_tree(AT_FDCWD, "/foo", OPEN_TREE_CLONE|O_CLOEXEC|AT_RECURSIVE);

     (Note that O_CLOEXEC is also platform-specific, so several future
     OPEN_TREE_* bits are also made unusable in one fell swoop.)

It's not entirely clear to me what the "right" choice is for new
syscalls. Just saying that all future VFS syscalls should use AT_* flags
doesn't seem practical. openat2(2) has RESOLVE_* flags (many of which
don't make much sense to burn generic AT_* flags for) and move_mount(2)
has separate AT_*-like flags for both the source and target so separate
flags are needed anyway (though it seems possible that renameat2(2)
could grow *_EMPTY_PATH flags at some point, and it's a bit of a shame
they can't be reused).

But at least for syscalls that _do_ choose to use AT_* flags, we should
explicitly state the policy that 0x2ff is currently intended for
per-syscall flags and that new flags should err on the side of
overlapping with existing flag bits (so we can extend the scope of
generic flags in the future if necessary).

And add AT_* aliases for the RENAME_* flags to further cement that
renameat2(2) is an *at(2) flag, just with its own per-syscall flags.

Suggested-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Link: https://lore.kernel.org/r/20240828-exportfs-u64-mount-id-v3-1-10c2c4c16708@cyphar.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
 2024-09-05 11:37:45 +02:00
Mary Guillemard
a778028cc5 drm/panthor: Add DEV_QUERY_TIMESTAMP_INFO dev query 
Expose timestamp information supported by the GPU with a new device
query.

Mali uses an external timer as GPU system time. On ARM, this is wired to
the generic arch timer so we wire cntfrq_el0 as device frequency.

This new uAPI will be used in Mesa to implement timestamp queries and
VK_KHR_calibrated_timestamps.

Since this extends the uAPI and because userland needs a way to advertise
those features conditionally, this also bumps the driver minor version.

v2:
- Rewrote to use GPU timestamp register
- Added timestamp_offset to drm_panthor_timestamp_info
- Add missing include for arch_timer_get_cntfrq
- Rework commit message

v3:
- Add panthor_gpu_read_64bit_counter
- Change panthor_gpu_read_timestamp to use
  panthor_gpu_read_64bit_counter

v4:
- Fix multiple typos in uAPI documentation
- Mention behavior when the timestamp frequency is unknown
- Use u64 instead of unsigned long long
  for panthor_gpu_read_timestamp
- Apply r-b from Mihail

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240830080349.24736-2-mary.guillemard@collabora.com
 2024-09-05 09:38:17 +02:00
Mary Guillemard
5f7762042f drm/panthor: Restrict high priorities on group_create 
We were allowing any users to create a high priority group without any
permission checks. As a result, this was allowing possible denial of
service.

We now only allow the DRM master or users with the CAP_SYS_NICE
capability to set higher priorities than PANTHOR_GROUP_PRIORITY_MEDIUM.

As the sole user of that uAPI lives in Mesa and hardcode a value of
MEDIUM [1], this should be safe to do.

Additionally, as those checks are performed at the ioctl level,
panthor_group_create now only check for priority level validity.

[1]f390835074/src/gallium/drivers/panfrost/pan_csf.c (L1038)

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Fixes: de85488138 ("drm/panthor: Add the scheduler logical block")
Cc: stable@vger.kernel.org
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240903144955.144278-2-mary.guillemard@collabora.com
 2024-09-05 09:33:33 +02:00
Ido Schimmel
1083d733eb ipv4: Fix user space build failure due to header change 
RT_TOS() from include/uapi/linux/in_route.h is defined using
IPTOS_TOS_MASK from include/uapi/linux/ip.h. This is problematic for
files such as include/net/ip_fib.h that want to use RT_TOS() as without
including both header files kernel compilation fails:

In file included from ./include/net/ip_fib.h:25,
                 from ./include/net/route.h:27,
                 from ./include/net/lwtunnel.h:9,
                 from net/core/dst.c:24:
./include/net/ip_fib.h: In function ‘fib_dscp_masked_match’:
./include/uapi/linux/in_route.h:31:32: error: ‘IPTOS_TOS_MASK’ undeclared (first use in this function)
   31 | #define RT_TOS(tos)     ((tos)&IPTOS_TOS_MASK)
      |                                ^~~~~~~~~~~~~~
./include/net/ip_fib.h:440:45: note: in expansion of macro ‘RT_TOS’
  440 |         return dscp == inet_dsfield_to_dscp(RT_TOS(fl4->flowi4_tos));

Therefore, cited commit changed linux/in_route.h to include linux/ip.h.
However, as reported by David, this breaks iproute2 compilation due
overlapping definitions between linux/ip.h and
/usr/include/netinet/ip.h:

In file included from ../include/uapi/linux/in_route.h:5,
                 from iproute.c:19:
../include/uapi/linux/ip.h:25:9: warning: "IPTOS_TOS" redefined
   25 | #define IPTOS_TOS(tos)          ((tos)&IPTOS_TOS_MASK)
      |         ^~~~~~~~~
In file included from iproute.c:17:
/usr/include/netinet/ip.h:222:9: note: this is the location of the previous definition
  222 | #define IPTOS_TOS(tos)          ((tos) & IPTOS_TOS_MASK)

Fix by changing include/net/ip_fib.h to include linux/ip.h. Note that
usage of RT_TOS() should not spread further in the kernel due to recent
work in this area.

Fixes: 1fa3314c14 ("ipv4: Centralize TOS matching")
Reported-by: David Ahern <dsahern@kernel.org>
Closes: https://lore.kernel.org/netdev/2f5146ff-507d-4cab-a195-b28c0c9e654e@kernel.org/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Link: https://patch.msgid.link/20240903133554.2807343-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-09-04 16:40:33 -07:00
Mariusz Tkaczyk
4e893545ef PCI/NPEM: Add Native PCIe Enclosure Management support 
Native PCIe Enclosure Management (NPEM, PCIe r6.1 sec 6.28) allows managing
LEDs in storage enclosures. NPEM is indication oriented and it does not
give direct access to LEDs. Although each indication *could* represent an
individual LED, multiple indications could also be represented as a single,
multi-color LED or a single LED blinking in a specific interval.  The
specification leaves that open.

Each enabled indication (capability register bit on) is represented as a
ledclass_dev which can be controlled through sysfs. For every ledclass
device only 2 brightness states are allowed: LED_ON (1) or LED_OFF (0).
This corresponds to the NPEM control register (Indication bit on/off).

Ledclass devices appear in sysfs as child devices (subdirectory) of PCI
device which has an NPEM Extended Capability and indication is enabled in
NPEM capability register. For example, these are LEDs created for pcieport
"10000:02:05.0" on my setup:

  leds/
  ├── 10000:02:05.0:enclosure:fail
  ├── 10000:02:05.0:enclosure:locate
  ├── 10000:02:05.0:enclosure:ok
  └── 10000:02:05.0:enclosure:rebuild

They can be also found in "/sys/class/leds" directory. The parent PCIe
device domain/bus/device/function address is used to guarantee uniqueness
across leds subsystem.

To enable/disable a "fail" indication, the "brightness" file can be edited:

  echo 1 > ./leds/10000:02:05.0:enclosure:fail/brightness
  echo 0 > ./leds/10000:02:05.0:enclosure:fail/brightness

PCIe r6.1, sec 7.9.19.2 defines the possible indications.

Multiple indications for same parent PCIe device can conflict and hardware
may update them when processing new request. To avoid issues, driver
refresh all indications by reading back control register.

This driver expects to be the exclusive NPEM extended capability manager.
It waits up to 1 second after imposing new request, it doesn't verify if
controller is busy before write, and it assumes the mutex lock gives
protection from concurrent updates.

If _DSM LED management is available, we assume the platform may be using
NPEM for its own purposes (see PCI Firmware Spec r3.3 sec 4.7), so the
driver does not use NPEM. A future patch will add _DSM support; an info
message notes whether NPEM or _DSM is being used.

NPEM is a PCIe extended capability so it should be registered in
pcie_init_capabilities() but it is not possible due to LED dependency.  The
parent pci_device must be added earlier for led_classdev_register() to be
successful. NPEM does not require configuration on kernel side, so it is
safe to register LED devices later.

Link: https://lore.kernel.org/r/20240904104848.23480-3-mariusz.tkaczyk@linux.intel.com
Suggested-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Stuart Hayes <stuart.w.hayes@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
 2024-09-04 17:25:12 -05:00
Tejun Heo
649e980dad Merge branch 'bpf/master' into for-6.12 
Pull bpf/master to receive baebe9aaba ("bpf: allow passing struct
bpf_iter_<type> as kfunc arguments") and related changes in preparation for
the DSQ iterator patchset.

Signed-off-by: Tejun Heo <tj@kernel.org>
 2024-09-04 11:41:32 -10:00
Alexander Mikhalitsyn
16e1503eaf fuse: allow idmapped mounts 
Now we have everything in place and we can allow idmapped mounts
by setting the FS_ALLOW_IDMAP flag. Notice that real availability
of idmapped mounts will depend on the fuse daemon. Fuse daemon
have to set FUSE_ALLOW_IDMAP flag in the FUSE_INIT reply.

To discuss:
- we enable idmapped mounts support only if "default_permissions" mode is
enabled, because otherwise we would need to deal with UID/GID mappings in
the userspace side OR provide the userspace with idmapped
req->in.h.uid/req->in.h.gid values which is not something that we probably
want to. Idmapped mounts philosophy is not about faking caller uid/gid.

Some extra links and examples:

- libfuse support
https://github.com/mihalicyn/libfuse/commits/idmap_support

- fuse-overlayfs support:
https://github.com/mihalicyn/fuse-overlayfs/commits/idmap_support

- cephfs-fuse conversion example
https://github.com/mihalicyn/ceph/commits/fuse_idmap

- glusterfs conversion example
https://github.com/mihalicyn/glusterfs/commits/fuse_idmap

Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2024-09-04 16:51:11 +02:00
Alexander Mikhalitsyn
aa16880d9f fuse: add basic infrastructure to support idmappings 
Add some preparational changes in fuse_get_req/fuse_force_creds
to handle idmappings.

Miklos suggested [1], [2] to change the meaning of in.h.uid/in.h.gid
fields when daemon declares support for idmapped mounts. In a new semantic,
we fill uid/gid values in fuse header with a id-mapped caller uid/gid (for
requests which create new inodes), for all the rest cases we just send -1
to userspace.

No functional changes intended.

Link: https://lore.kernel.org/all/CAJfpegsVY97_5mHSc06mSw79FehFWtoXT=hhTUK_E-Yhr7OAuQ@mail.gmail.com/ [1]
Link: https://lore.kernel.org/all/CAJfpegtHQsEUuFq1k4ZbTD3E1h-GsrN3PWyv7X8cg6sfU_W2Yw@mail.gmail.com/ [2]
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2024-09-04 16:48:22 +02:00
Joey Gouly
1751981992 arm64/ptrace: add support for FEAT_POE 
Add a regset for POE containing POR_EL0.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20240822151113.1479789-21-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
 2024-09-04 12:54:05 +01:00
Pablo Neira Ayuso
8bfb74ae12 netfilter: nf_tables: zero timeout means element never times out 
This patch uses zero as timeout marker for those elements that never expire
when the element is created.

If userspace provides no timeout for an element, then the default set
timeout applies. However, if no default set timeout is specified and
timeout flag is set on, then timeout extension is allocated and timeout
is set to zero to allow for future updates.

Use of zero a never timeout marker has been suggested by Phil Sutter.

Note that, in older kernels, it is already possible to define elements
that never expire by declaring a set with the set timeout flag set on
and no global set timeout, in this case, new element with no explicit
timeout never expire do not allocate the timeout extension, hence, they
never expire. This approach makes it complicated to accomodate element
timeout update, because element extensions do not support reallocations.
Therefore, allocate the timeout extension and use the new marker for
this case, but do not expose it to userspace to retain backward
compatibility in the set listing.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
 2024-09-03 18:19:40 +02:00
Greg Kroah-Hartman
f53835f110 IIO: 1st set of new device support, features and cleanup for 6.12 
Includes a merge of spi-mos-config branch from spi.git that brings
 support needed for the AD4000 driver.
 
 Lots of new device support this time including 9 new drivers and substantial
 changes to add new support to several more.
 
 New device support
 ------------------
 
 Given we have a lot of new support, I've subcategorized them:
 
 Substantial changes, or new driver
 **********************************
 
 adi,ad4000
 - New driver for this high speed ADC.
 adi,ad4695
 - New driver supporting AD4690, AD4696, AD4697 and AD4698 ADCs.
 - Follow up series added triggered buffer support.
 adi,ad7380
 - Add support for single ended parts, AD7386, ADC7387, AD7388 and -4 variants.
   (driver previously only support differential parts).
   These variants have an additional front end MUX so only half the channels
   can be sampled efficiently.
 adi,ad9467
 - Refactor and extend driver to support ad9643, ad9449 and ad9652 high speed
   ADCs.
 adi,adxl380
 - New driver for this low power accelerometer.
 adi,ltc2664
 - New driver supporting LTC2664 and LTC2672 DACs.
 microchip,pac1921
 - New driver for this power/current monitor chip.
 rohm,bh1745
 - New driver for this RGBC colour sensor.
 rohm,bu27034anuc
 - The original bu27034 was canceled before mass production, so the
   driver is modified to support the BU27034ANUC which had some significant
   differences.  DT compatible changed to avoid chance of old driver ever
   binding to real hardware.
 sciosense,ens210
 - New driver for ens210, ens210a, ens211, ens212, ens213a, and ens215
   temperature and humidity sensors (all register compatible up to some
   conversion time differences)
 sensiron,sdp500
 - New driver for this differential pressure sensor.
 tyhx,hx9023s
 - New driver to support this capacitive proximity sensor.
 
 Minor changes to support new devices
 ************************************
 
 adi,adf4377
 - Add support for the single output adf4378.
 kionix,kxcjk-1013
 - Add support for KX022-1020 accelerometer (binding and ID table only)
 liteon,ltrf216a
 - Add support for ltr-308.  A few minor differences in features set
 rockchip,saradc
 - Add ID for rk3576-saradc
 sensortek,stk3310
 - Add ID for stk3013 proximity sensor which (despite documentation) has
   an ambient light sensor and is compatible with existing parts.
 
 Documentation updates
 ---------------------
 
 Generalize ABI docs for shunt resistor attribute
 Improve calibscale and calibbias related documentation.  A couple of follow
 up patches to resolve duplicate documentation that resulted.
 
 New core features
 -----------------
 
 backend
 - Add option for debugfs - useful for test pattern control
 - Use this for both adi-axi-adc and adi-axi-dac
 trigger suspend
 - Add functions to allow triggers to be suspended. This avoids problems
   when a device enters suspend to idle with a sysfs trigger. Use it for now
   in the bmi323 only.
 
 New driver features
 -------------------
 
 adi,ad7192
 - Add option to be a clock provider (+ additional clock config options)
 adi,ad7380
 - Add documentation for this fairly new driver.
 adi,ad9461
 - Provide control of test modes and backend validation blocks used
   to identify problems (via debugfs)
 adi,ad9739
 - Add backend debugfs and docs for what is provided via adi-axi-dac
 avago,apds9960
 - Add proximity and gesture calibration offset control
 bosch,bmp280
 - Triggered buffer support including adding raw+scale output for sysfs.
 liteon,ltr390
 - Add configuration of integration time and scale.
 stm,dfsdm
 - Convert this SD modulator driver to backend framework and add support
   for channel scaling + modern channel bindings.
 
 Treewide cleanup
 ----------------
 
 iio_dev->masklength: Making it private.
 - Provide access function to read the core compute channel mask length
   and a macro to iterate over elements in the active_scan_mask.
 - Enables marking masklength __private preventing drivers from
   writing it without triggering a build warning whilst minimizing overhead
   in what are typically hot paths.
 - Convert all drivers and finally mark it private.
   Merge conflicts resolved in drivers applied after this point.
 Constify regmap_bus
 - These are never modified, so mark them const.
 
 Core cleanup
 ------------
 
 backend
 - A few late breaking bits of feedback (unused variable, error messages)
 dma-buffer
 - Namespace exports.
 core
 - Drop unused assignment.
 
 Driver cleanup
 --------------
 
 adi,ad4695
 - Fixing binding to reflect that common-mode-channel is a scalar.
 adi,ad7280a
 - Use __free(kfree) to simplify freeing of receive buffer.
 adi,ad7606
 - Various dt-binding cleanup and improvements.
 - Fix oversampling related gpio handling.
 - Make polarity of standby gpio match documentation.
 - use guard() to simplify lock handling.
 adi,ad7768
 - Use device_for_each_child_node_scoped() instead of fwnode equivalent.
 adi,ad7124
 - Reduce SPI transfers by avoiding separate writes to different fields
   in the same register.
 - Start the ADC in idle mode.
 adi,adis
 - Drop ifdefs in favor of IS_ENABLED.
 adi,admv8818
 - Fix wrong ABI docs.
 asahi-kasei,ak8975
 - Drop a prefix free compatible accidentally added recently.
 aspeed,adc
 - Use of_property_present() instead of of_find_property() to see if the
   property is there or not.
 atmel,at91,
 - Use __free(kfree) to simplify freeing of channel related array.
 bosch,bma400
 - Use __free(kfree) to simplify freeing a locally allocated string.
 bosch,bmc150
 - Add missing mount-matrix binding docs.
 bosch,bme680
 - Fix read/write to ensure multiple necessary sequential reads without
   device configuration change.
 - Drop unnecessary type casts and use more appropriate data types.
 - Drop some left over ACPI code as ACPI support was removed due to invalid
   IDs (and no known users).
 - Sort headers consistently.
 - Avoid unnecessary duplicate read and redundant read of gas config.
 - Use bulk reads to get calibration data.
 - Reorder allocation of IIO device to be prior to device init.
 - Add remaining read/write buffers to the union used already for all others.
 - Tidy up error checks for consistency of style, including dev_err_probe()
 - Bring the device startup procedure inline with the vendor code.
 - Reorder code so mode forcing is more obvious occurring where needed.
 - Tidy up data locality in reading functions so no magic data is stored
   in state structures just to get it across function calls.
 - Make a local lookup table static to avoid placing it on the stack.
 bosch,bmp280
 - Fix BME280 regmap to not include registers it doesn't have.
 - Wait a little longer after config to allow for maximum possible necessary
   wait.
 - Reorganize headers.
 - Make conversion_time_max array static to avoid placing it on the stack.
 maxim,max1363
 - Use __free(kfree) to simplify freeing transmission buffer.
 microchip,mcp3964
 - Use devm_regulator_get_enable_read_voltage()
 microchip,mcp3911
 - Use devm_regulator_get_enable_read_voltage()
 microchip,mcp4728
 - Use devm_regulator_get_enable_read_voltage()
 microchip,mcp4922
 - Use devm_regulator_get_enable_read_voltage() and devm_* to allow
   dropping of explicit remove() callback.
 onnn,noa1305
 - Various tidy up.
 - Provide available scale values.
 - Make integration time configurable.
 - Fix up integration time look up (/2 error)
 ti,dac7311
 - Check if spi_setup() succeeded.
 ti,tsc2046
 - Use __free(kfree) to simplify freeing rx and tx buffers.
 - Use devm_regulator_get_enable_read_voltage()
 
 Various minor fixes not called out explicitly.
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Merge tag 'iio-for-6.12a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-testing

Jonathan writes:

IIO: 1st set of new device support, features and cleanup for 6.12

Includes a merge of spi-mos-config branch from spi.git that brings
support needed for the AD4000 driver.

Lots of new device support this time including 9 new drivers and substantial
changes to add new support to several more.

New device support
------------------

Given we have a lot of new support, I've subcategorized them:

Substantial changes, or new driver
**********************************

adi,ad4000
- New driver for this high speed ADC.
adi,ad4695
- New driver supporting AD4690, AD4696, AD4697 and AD4698 ADCs.
- Follow up series added triggered buffer support.
adi,ad7380
- Add support for single ended parts, AD7386, ADC7387, AD7388 and -4 variants.
  (driver previously only support differential parts).
  These variants have an additional front end MUX so only half the channels
  can be sampled efficiently.
adi,ad9467
- Refactor and extend driver to support ad9643, ad9449 and ad9652 high speed
  ADCs.
adi,adxl380
- New driver for this low power accelerometer.
adi,ltc2664
- New driver supporting LTC2664 and LTC2672 DACs.
microchip,pac1921
- New driver for this power/current monitor chip.
rohm,bh1745
- New driver for this RGBC colour sensor.
rohm,bu27034anuc
- The original bu27034 was canceled before mass production, so the
  driver is modified to support the BU27034ANUC which had some significant
  differences.  DT compatible changed to avoid chance of old driver ever
  binding to real hardware.
sciosense,ens210
- New driver for ens210, ens210a, ens211, ens212, ens213a, and ens215
  temperature and humidity sensors (all register compatible up to some
  conversion time differences)
sensiron,sdp500
- New driver for this differential pressure sensor.
tyhx,hx9023s
- New driver to support this capacitive proximity sensor.

Minor changes to support new devices
************************************

adi,adf4377
- Add support for the single output adf4378.
kionix,kxcjk-1013
- Add support for KX022-1020 accelerometer (binding and ID table only)
liteon,ltrf216a
- Add support for ltr-308.  A few minor differences in features set
rockchip,saradc
- Add ID for rk3576-saradc
sensortek,stk3310
- Add ID for stk3013 proximity sensor which (despite documentation) has
  an ambient light sensor and is compatible with existing parts.

Documentation updates
---------------------

Generalize ABI docs for shunt resistor attribute
Improve calibscale and calibbias related documentation.  A couple of follow
up patches to resolve duplicate documentation that resulted.

New core features
-----------------

backend
- Add option for debugfs - useful for test pattern control
- Use this for both adi-axi-adc and adi-axi-dac
trigger suspend
- Add functions to allow triggers to be suspended. This avoids problems
  when a device enters suspend to idle with a sysfs trigger. Use it for now
  in the bmi323 only.

New driver features
-------------------

adi,ad7192
- Add option to be a clock provider (+ additional clock config options)
adi,ad7380
- Add documentation for this fairly new driver.
adi,ad9461
- Provide control of test modes and backend validation blocks used
  to identify problems (via debugfs)
adi,ad9739
- Add backend debugfs and docs for what is provided via adi-axi-dac
avago,apds9960
- Add proximity and gesture calibration offset control
bosch,bmp280
- Triggered buffer support including adding raw+scale output for sysfs.
liteon,ltr390
- Add configuration of integration time and scale.
stm,dfsdm
- Convert this SD modulator driver to backend framework and add support
  for channel scaling + modern channel bindings.

Treewide cleanup
----------------

iio_dev->masklength: Making it private.
- Provide access function to read the core compute channel mask length
  and a macro to iterate over elements in the active_scan_mask.
- Enables marking masklength __private preventing drivers from
  writing it without triggering a build warning whilst minimizing overhead
  in what are typically hot paths.
- Convert all drivers and finally mark it private.
  Merge conflicts resolved in drivers applied after this point.
Constify regmap_bus
- These are never modified, so mark them const.

Core cleanup
------------

backend
- A few late breaking bits of feedback (unused variable, error messages)
dma-buffer
- Namespace exports.
core
- Drop unused assignment.

Driver cleanup
--------------

adi,ad4695
- Fixing binding to reflect that common-mode-channel is a scalar.
adi,ad7280a
- Use __free(kfree) to simplify freeing of receive buffer.
adi,ad7606
- Various dt-binding cleanup and improvements.
- Fix oversampling related gpio handling.
- Make polarity of standby gpio match documentation.
- use guard() to simplify lock handling.
adi,ad7768
- Use device_for_each_child_node_scoped() instead of fwnode equivalent.
adi,ad7124
- Reduce SPI transfers by avoiding separate writes to different fields
  in the same register.
- Start the ADC in idle mode.
adi,adis
- Drop ifdefs in favor of IS_ENABLED.
adi,admv8818
- Fix wrong ABI docs.
asahi-kasei,ak8975
- Drop a prefix free compatible accidentally added recently.
aspeed,adc
- Use of_property_present() instead of of_find_property() to see if the
  property is there or not.
atmel,at91,
- Use __free(kfree) to simplify freeing of channel related array.
bosch,bma400
- Use __free(kfree) to simplify freeing a locally allocated string.
bosch,bmc150
- Add missing mount-matrix binding docs.
bosch,bme680
- Fix read/write to ensure multiple necessary sequential reads without
  device configuration change.
- Drop unnecessary type casts and use more appropriate data types.
- Drop some left over ACPI code as ACPI support was removed due to invalid
  IDs (and no known users).
- Sort headers consistently.
- Avoid unnecessary duplicate read and redundant read of gas config.
- Use bulk reads to get calibration data.
- Reorder allocation of IIO device to be prior to device init.
- Add remaining read/write buffers to the union used already for all others.
- Tidy up error checks for consistency of style, including dev_err_probe()
- Bring the device startup procedure inline with the vendor code.
- Reorder code so mode forcing is more obvious occurring where needed.
- Tidy up data locality in reading functions so no magic data is stored
  in state structures just to get it across function calls.
- Make a local lookup table static to avoid placing it on the stack.
bosch,bmp280
- Fix BME280 regmap to not include registers it doesn't have.
- Wait a little longer after config to allow for maximum possible necessary
  wait.
- Reorganize headers.
- Make conversion_time_max array static to avoid placing it on the stack.
maxim,max1363
- Use __free(kfree) to simplify freeing transmission buffer.
microchip,mcp3964
- Use devm_regulator_get_enable_read_voltage()
microchip,mcp3911
- Use devm_regulator_get_enable_read_voltage()
microchip,mcp4728
- Use devm_regulator_get_enable_read_voltage()
microchip,mcp4922
- Use devm_regulator_get_enable_read_voltage() and devm_* to allow
  dropping of explicit remove() callback.
onnn,noa1305
- Various tidy up.
- Provide available scale values.
- Make integration time configurable.
- Fix up integration time look up (/2 error)
ti,dac7311
- Check if spi_setup() succeeded.
ti,tsc2046
- Use __free(kfree) to simplify freeing rx and tx buffers.
- Use devm_regulator_get_enable_read_voltage()

Various minor fixes not called out explicitly.

* tag 'iio-for-6.12a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (250 commits)
  drivers:iio:Fix the NULL vs IS_ERR() bug for debugfs_create_dir()
  iio: sgp40: retain documentation in driver
  iio: ABI: remove duplicate in_resistance_calibbias
  dt-bindings: iio: st,stm32-adc: add top-level constraints
  iio: ABI: add missing calibbias attributes
  iio: ABI: add missing calibscale attributes
  iio: ABI: sort calibscale attributes
  iio: ABI: document calibscale_available attributes
  iio: light: ltr390: Calculate 'counts_per_uvi' dynamically
  iio: light: ltr390: Add ALS channel and support for gain and resolution
  doc: iio: ad4695: document buffered read
  iio: adc: ad4695: implement triggered buffer
  iio: proximity: hx9023s: Fix error code in hx9023s_property_get()
  iio: light: noa1305: Fix up integration time look up
  iio: humidity: Add support for ENS210
  dt-bindings: iio: humidity: add ENS210 sensor family
  iio: imu: adis16460: drop ifdef around CONFIG_DEBUG_FS
  iio: imu: adis16400: drop ifdef around CONFIG_DEBUG_FS
  iio: imu: adis16480: drop ifdef around CONFIG_DEBUG_FS
  iio: imu: adis16475: drop ifdef around CONFIG_DEBUG_FS
  ...
 2024-09-03 11:32:16 +02:00
Greg Kroah-Hartman
35f4a62964 Merge 6.11-rc6 into usb-next 
We need the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-09-03 07:42:58 +02:00
Mary Guillemard
3a8d97611b drm/panfrost: Add cycle counter job requirement 
Extend the uAPI with a new job requirement flag for cycle
counters. This requirement is used by userland to indicate that a job
requires cycle counters or system timestamp to be propagated. (for use
with write value timestamp jobs)

We cannot enable cycle counters unconditionally as this would result in
an increase of GPU power consumption. As a result, they should be left
off unless required by the application.

If a job requires cycle counters or system timestamps propagation, we
must enable cycle counting before issuing a job and disable it right
after the job completes.

Since this extends the uAPI and because userland needs a way to advertise
features like VK_KHR_shader_clock conditionally, we bumps the driver
minor version.

v2:
- Rework commit message
- Squash uAPI changes and implementation in this commit
- Simplify changes based on Steven Price comments

v3:
- Add Steven Price r-b
- Fix a codestyle issue

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240819080224.24914-3-mary.guillemard@collabora.com
 2024-09-02 10:13:38 +01:00
Mary Guillemard
9c75b16cab drm/panfrost: Add SYSTEM_TIMESTAMP and SYSTEM_TIMESTAMP_FREQUENCY parameters 
Expose system timestamp and frequency supported by the GPU.

Mali uses an external timer as GPU system time. On ARM, this is wired to
the generic arch timer so we wire cntfrq_el0 as device frequency.

This new uAPI will be used in Mesa to implement timestamp queries and
VK_KHR_calibrated_timestamps.

v2:
- Rewrote to use GPU timestamp register
- Add missing include for arch_timer_get_cntfrq
- Rework commit message

v3:
- Move panfrost_cycle_counter_get and panfrost_cycle_counter_put to
  panfrost_ioctl_query_timestamp
- Handle possible overflow in panfrost_timestamp_read

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240819080224.24914-2-mary.guillemard@collabora.com
 2024-09-02 10:13:38 +01:00
Chandramohan Akula
181028a0d8 RDMA/bnxt_re: Share a page to expose per SRQ info with userspace 
Gen P7 adapters needs to share a toggle bits information received
in kernel driver with the user space. User space needs this
info to arm the SRQ.

User space application can get this page using the
UAPI routines. Library will mmap this page and get the
toggle bits to be used in the next ARM Doorbell.

Uses a hash list to map the SRQ structure from the SRQ ID.
SRQ structure is retrieved from the hash list while the
library calls the UAPI routine to get the toggle page
mapping. Currently the full page is mapped per SRQ. This
can be optimized to enable multiple SRQs from the same
application share the same page and different offsets
in the page

Signed-off-by: Chandramohan Akula <chandramohan.akula@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1724945645-14989-4-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2024-09-02 10:10:36 +03:00
Matthew Wilcox (Oracle)
09022bc196 mm: remove PG_error 
The PG_error bit is now unused; delete it and free up a bit in
page->flags.

Link: https://lkml.kernel.org/r/20240807193528.1865100-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2024-09-01 20:26:05 -07:00
Connor Abbott
d7eafed322 drm/msm: Expose expanded UBWC config uapi 
This adds extra parameters that affect UBWC tiling that will be used by
the Mesa implementation of VK_EXT_host_image_copy.

Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/607401/
Signed-off-by: Rob Clark <robdclark@chromium.org>
 2024-08-30 10:41:19 -07:00
Ian Kent
433f9d76a0 autofs: add per dentry expire timeout 
Add ability to set per-dentry mount expire timeout to autofs.

There are two fairly well known automounter map formats, the autofs
format and the amd format (more or less System V and Berkley).

Some time ago Linux autofs added an amd map format parser that
implemented a fair amount of the amd functionality. This was done
within the autofs infrastructure and some functionality wasn't
implemented because it either didn't make sense or required extra
kernel changes. The idea was to restrict changes to be within the
existing autofs functionality as much as possible and leave changes
with a wider scope to be considered later.

One of these changes is implementing the amd options:
1) "unmount", expire this mount according to a timeout (same as the
   current autofs default).
2) "nounmount", don't expire this mount (same as setting the autofs
   timeout to 0 except only for this specific mount) .
3) "utimeout=<seconds>", expire this mount using the specified
   timeout (again same as setting the autofs timeout but only for
   this mount).

To implement these options per-dentry expire timeouts need to be
implemented for autofs indirect mounts. This is because all map keys
(mounts) for autofs indirect mounts use an expire timeout stored in
the autofs mount super block info. structure and all indirect mounts
use the same expire timeout.

Now I have a request to add the "nounmount" option so I need to add
the per-dentry expire handling to the kernel implementation to do this.

The implementation uses the trailing path component to identify the
mount (and is also used as the autofs map key) which is passed in the
autofs_dev_ioctl structure path field. The expire timeout is passed
in autofs_dev_ioctl timeout field (well, of the timeout union).

If the passed in timeout is equal to -1 the per-dentry timeout and
flag are cleared providing for the "unmount" option. If the timeout
is greater than or equal to 0 the timeout is set to the value and the
flag is also set. If the dentry timeout is 0 the dentry will not expire
by timeout which enables the implementation of the "nounmount" option
for the specific mount. When the dentry timeout is greater than zero it
allows for the implementation of the "utimeout=<seconds>" option.

Signed-off-by: Ian Kent <raven@themaw.net>
Link: https://lore.kernel.org/r/20240814090231.963520-1-raven@themaw.net
Signed-off-by: Christian Brauner <brauner@kernel.org>
 2024-08-30 08:22:36 +02:00
Jakub Kicinski
3cbd2090d3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Cross-merge networking fixes after downstream PR.

Conflicts:

drivers/net/ethernet/faraday/ftgmac100.c
  4186c8d9e6 ("net: ftgmac100: Ensure tx descriptor updates are visible")
  e24a6c8746 ("net: ftgmac100: Get link speed and duplex for NC-SI")
https://lore.kernel.org/0b851ec5-f91d-4dd3-99da-e81b98c9ed28@kernel.org

net/ipv4/tcp.c
  bac76cf898 ("tcp: fix forever orphan socket caused by tcp_abort")
  edefba66d9 ("tcp: rstreason: introduce SK_RST_REASON_TCP_STATE for active reset")
https://lore.kernel.org/20240828112207.5c199d41@canb.auug.org.au

No adjacent changes.

Link: https://patch.msgid.link/20240829130829.39148-1-pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-29 11:49:10 -07:00
Jens Axboe
ae98dbf43d io_uring/kbuf: add support for incremental buffer consumption 
By default, any recv/read operation that uses provided buffers will
consume at least 1 buffer fully (and maybe more, in case of bundles).
This adds support for incremental consumption, meaning that an
application may add large buffers, and each read/recv will just consume
the part of the buffer that it needs.

For example, let's say an application registers 1MB buffers in a
provided buffer ring, for streaming receives. If it gets a short recv,
then the full 1MB buffer will be consumed and passed back to the
application. With incremental consumption, only the part that was
actually used is consumed, and the buffer remains the current one.

This means that both the application and the kernel needs to keep track
of what the current receive point is. Each recv will still pass back a
buffer ID and the size consumed, the only difference is that before the
next receive would always be the next buffer in the ring. Now the same
buffer ID may return multiple receives, each at an offset into that
buffer from where the previous receive left off. Example:

Application registers a provided buffer ring, and adds two 32K buffers
to the ring.

Buffer1 address: 0x1000000 (buffer ID 0)
Buffer2 address: 0x2000000 (buffer ID 1)

A recv completion is received with the following values:

cqe->res	0x1000	(4k bytes received)
cqe->flags	0x11	(CQE_F_BUFFER|CQE_F_BUF_MORE set, buffer ID 0)

and the application now knows that 4096b of data is available at
0x1000000, the start of that buffer, and that more data from this buffer
will be coming. Now the next receive comes in:

cqe->res	0x2010	(8k bytes received)
cqe->flags	0x11	(CQE_F_BUFFER|CQE_F_BUF_MORE set, buffer ID 0)

which tells the application that 8k is available where the last
completion left off, at 0x1001000. Next completion is:

cqe->res	0x5000	(20k bytes received)
cqe->flags	0x1	(CQE_F_BUFFER set, buffer ID 0)

and the application now knows that 20k of data is available at
0x1003000, which is where the previous receive ended. CQE_F_BUF_MORE
isn't set, as no more data is available in this buffer ID. The next
completion is then:

cqe->res	0x1000	(4k bytes received)
cqe->flags	0x10001	(CQE_F_BUFFER|CQE_F_BUF_MORE set, buffer ID 1)

which tells the application that buffer ID 1 is now the current one,
hence there's 4k of valid data at 0x2000000. 0x2001000 will be the next
receive point for this buffer ID.

When a buffer will be reused by future CQE completions,
IORING_CQE_BUF_MORE will be set in cqe->flags. This tells the application
that the kernel isn't done with the buffer yet, and that it should expect
more completions for this buffer ID. Will only be set by provided buffer
rings setup with IOU_PBUF_RING INC, as that's the only type of buffer
that will see multiple consecutive completions for the same buffer ID.
For any other provided buffer type, any completion that passes back
a buffer to the application is final.

Once a buffer has been fully consumed, the buffer ring head is
incremented and the next receive will indicate the next buffer ID in the
CQE cflags.

On the send side, the application can manage how much data is sent from
an existing buffer by setting sqe->len to the desired send length.

An application can request incremental consumption by setting
IOU_PBUF_RING_INC in the provided buffer ring registration. Outside of
that, any provided buffer ring setup and buffer additions is done like
before, no changes there. The only change is in how an application may
see multiple completions for the same buffer ID, hence needing to know
where the next receive will happen.

Note that like existing provided buffer rings, this should not be used
with IOSQE_ASYNC, as both really require the ring to remain locked over
the duration of the buffer selection and the operation completion. It
will consume a buffer otherwise regardless of the size of the IO done.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-08-29 08:44:58 -06:00
Peter Hutterer
b31c9d9dc3 HID: hidraw: add HIDIOCREVOKE ioctl 
There is a need for userspace applications to open HID devices directly.
Use-cases include configuration of gaming mice or direct access to
joystick devices. The latter is currently handled by the uaccess tag in
systemd, other devices include more custom/local configurations or just
sudo.

A better approach is what we already have for evdev devices: give the
application a file descriptor and revoke it when it may no longer access
that device.

This patch is the hidraw equivalent to the EVIOCREVOKE ioctl, see
commit c7dc65737c ("Input: evdev - add EVIOCREVOKE ioctl") for full
details.

An MR for systemd-logind has been filed here:
https://github.com/systemd/systemd/pull/33970

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Link: https://patch.msgid.link/20240827-hidraw-revoke-v5-1-d004a7451aea@kernel.org
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
 2024-08-29 10:39:37 +02:00
Christoph Hellwig
57413d8e17 fs: sort out the fallocate mode vs flag mess 
The fallocate system call takes a mode argument, but that argument
contains a wild mix of exclusive modes and an optional flags.

Replace FALLOC_FL_SUPPORTED_MASK with FALLOC_FL_MODE_MASK, which excludes
the optional flag bit, so that we can use switch statement on the value
to easily enumerate the cases while getting the check for duplicate modes
for free.

To make this (and in the future the file system implementations) more
readable also add a symbolic name for the 0 mode used to allocate blocks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240827065123.1762168-4-hch@lst.de
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
 2024-08-28 16:53:57 +02:00
Anshuman Khandual
947697c6f0 uapi: Define GENMASK_U128 
This adds GENMASK_U128() and __GENMASK_U128() macros using __BITS_PER_U128
and __int128 data types. These macros will be used in providing support for
generating 128 bit masks.

The macros wouldn't work in all assembler flavors for reasons described
in the comments on top of declarations. Enforce it for more by adding
!__ASSEMBLY__ guard.

Cc: Yury Norov <yury.norov@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Arnd Bergmann <arnd@arndb.de>>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
 2024-08-28 06:53:58 -07:00
Jason Gunthorpe
34cd192881 Merge branch 'bnxt_re_variable_wqes' into rdma.git for-next 
Selvin Xavier says:

=============
Enable the Variable size Work Queue entry support for Gen P7
adapters. This would help in the better utilization of the queue memory
and pci bandwidth due to the smaller send queue Work entries.
=============

Based on v6.11-rc5 for dependencies.

* bnxt_re_variable_wqes: (829 commits)
  RDMA/bnxt_re: Enable variable size WQEs for user space applications
  RDMA/bnxt_re: Handle variable WQE support for user applications
  RDMA/bnxt_re: Fix the table size for PSN/MSN entries
  RDMA/bnxt_re: Get the WQE index from slot index while completing the WQEs
  RDMA/bnxt_re: Add support for Variable WQE in Genp7 adapters
  Linux 6.11-rc5
  ...

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2024-08-28 09:11:29 -03:00
Rodrigo Vivi
04cf420bbc
Merge drm/drm-next into drm-intel-next 
Need to take some Xe bo definition in here before
we can add the BMG display 64k aligned size restrictions.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
 2024-08-27 17:06:28 -04:00
Jason Gunthorpe
76889bbaab Merge branch 'nesting_reserved_regions' into iommufd.git for-next 
Nicolin Chen says:

=========
IOMMU_RESV_SW_MSI is a unique region defined by an IOMMU driver. Though it
is eventually used by a device for address translation to an MSI location
(including nested cases), practically it is a universal region across all
domains allocated for the IOMMU that defines it.

Currently IOMMUFD core fetches and reserves the region during an attach to
an hwpt_paging. It works with a hwpt_paging-only case, but might not work
with a nested case where a device could directly attach to a hwpt_nested,
bypassing the hwpt_paging attachment.

Move the enforcement forward, to the hwpt_paging allocation function. Then
clean up all the SW_MSI related things in the attach/replace routine.
=========

Based on v6.11-rc5 for dependencies.

* nesting_reserved_regions: (562 commits)
  iommufd/device: Enforce reserved IOVA also when attached to hwpt_nested
  Linux 6.11-rc5
  ...
 2024-08-27 11:13:56 -03:00
Selvin Xavier
10a104c0de RDMA/bnxt_re: Enable variable size WQEs for user space applications 
Add backward compatibility code to enable variable size WQEs only if the
user lib supports it.

Link: https://patch.msgid.link/r/1724042847-1481-6-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2024-08-27 10:15:57 -03:00
Selvin Xavier
d8ea645d69 RDMA/bnxt_re: Handle variable WQE support for user applications 
User library calculates the number of slots required for user applications
and it can pass that information to the driver.  Driver can use this value
and update the HW directly. This mechanism is currently used only for the
newly introduced variable size WQEs.

Extend the bnxt_re_qp_req structure to pass the Send Queue slot count.
Reorganize the code to get the sq_slots before initializing the Send Queue
attributes.

Link: https://patch.msgid.link/r/1724042847-1481-5-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2024-08-27 10:15:57 -03:00
Daniel Vetter
e55ef65510 amd-drm-next-6.12-2024-08-26: 
amdgpu:
 - SDMA devcoredump support
 - DCN 4.0.1 updates
 - DC SUBVP fixes
 - Refactor OPP in DC
 - Refactor MMHUBBUB in DC
 - DC DML 2.1 updates
 - DC FAMS2 updates
 - RAS updates
 - GFX12 updates
 - VCN 4.0.3 updates
 - JPEG 4.0.3 updates
 - Enable wave kill (soft recovery) for compute queues
 - Clean up CP error interrupt handling
 - Enable CP bad opcode interrupts
 - VCN 4.x fixes
 - VCN 5.x fixes
 - GPU reset fixes
 - Fix vbios embedded EDID size handling
 - SMU 14.x updates
 - Misc code cleanups and spelling fixes
 - VCN devcoredump support
 - ISP MFD i2c support
 - DC vblank fixes
 - GFX 12 fixes
 - PSR fixes
 - Convert vbios embedded EDID to drm_edid
 - DCN 3.5 updates
 - DMCUB updates
 - Cursor fixes
 - Overdrive support for SMU 14.x
 - GFX CP padding optimizations
 - DCC fixes
 - DSC fixes
 - Preliminary per queue reset infrastructure
 - Initial per queue reset support for GFX 9
 - Initial per queue reset support for GFX 7, 8
 - DCN 3.2 fixes
 - DP MST fixes
 - SR-IOV fixes
 - GFX 9.4.3/4 devcoredump support
 - Add process isolation framework
 - Enable process isolation support for GFX 9.4.3/4
 - Take IOMMU remapping into account for P2P DMA checks
 
 amdkfd:
 - CRIU fixes
 - Improved input validation for user queues
 - HMM fix
 - Enable process isolation support for GFX 9.4.3/4
 - Initial per queue reset support for GFX 9
 - Allow users to target recommended SDMA engines
 
 radeon:
 - remove .load and drm_dev_alloc
 - Fix vbios embedded EDID size handling
 - Convert vbios embedded EDID to drm_edid
 - Use GEM references instead of TTM
 - r100 cp init cleanup
 - Fix potential overflows in evergreen CS offset tracking
 
 UAPI:
 - KFD support for targetting queues on recommended SDMA engines
   Proposed userspace:
   2f588a2406
   eb30a5bbc7
 
 drm/buddy:
 - Add start address support for trim function
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Merge tag 'amd-drm-next-6.12-2024-08-26' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.12-2024-08-26:

amdgpu:
- SDMA devcoredump support
- DCN 4.0.1 updates
- DC SUBVP fixes
- Refactor OPP in DC
- Refactor MMHUBBUB in DC
- DC DML 2.1 updates
- DC FAMS2 updates
- RAS updates
- GFX12 updates
- VCN 4.0.3 updates
- JPEG 4.0.3 updates
- Enable wave kill (soft recovery) for compute queues
- Clean up CP error interrupt handling
- Enable CP bad opcode interrupts
- VCN 4.x fixes
- VCN 5.x fixes
- GPU reset fixes
- Fix vbios embedded EDID size handling
- SMU 14.x updates
- Misc code cleanups and spelling fixes
- VCN devcoredump support
- ISP MFD i2c support
- DC vblank fixes
- GFX 12 fixes
- PSR fixes
- Convert vbios embedded EDID to drm_edid
- DCN 3.5 updates
- DMCUB updates
- Cursor fixes
- Overdrive support for SMU 14.x
- GFX CP padding optimizations
- DCC fixes
- DSC fixes
- Preliminary per queue reset infrastructure
- Initial per queue reset support for GFX 9
- Initial per queue reset support for GFX 7, 8
- DCN 3.2 fixes
- DP MST fixes
- SR-IOV fixes
- GFX 9.4.3/4 devcoredump support
- Add process isolation framework
- Enable process isolation support for GFX 9.4.3/4
- Take IOMMU remapping into account for P2P DMA checks

amdkfd:
- CRIU fixes
- Improved input validation for user queues
- HMM fix
- Enable process isolation support for GFX 9.4.3/4
- Initial per queue reset support for GFX 9
- Allow users to target recommended SDMA engines

radeon:
- remove .load and drm_dev_alloc
- Fix vbios embedded EDID size handling
- Convert vbios embedded EDID to drm_edid
- Use GEM references instead of TTM
- r100 cp init cleanup
- Fix potential overflows in evergreen CS offset tracking

UAPI:
- KFD support for targetting queues on recommended SDMA engines
  Proposed userspace:
  2f588a2406
  eb30a5bbc7

drm/buddy:
- Add start address support for trim function

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240826201528.55307-1-alexander.deucher@amd.com
 2024-08-27 14:33:12 +02:00
Daniel Vetter
4461e9e5c3 Linux 6.11-rc5 
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Merge v6.11-rc5 into drm-next

amdgpu pr conconflicts due to patches cherry-picked to -fixes, I might
as well catch up with a backmerge and handle them all. Plus both misc
and intel maintainers asked for a backmerge anyway.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2024-08-27 14:09:45 +02:00
Arkadiusz Kubalewski
cda1fba15c dpll: add Embedded SYNC feature for a pin 
Implement and document new pin attributes for providing Embedded SYNC
capabilities to the DPLL subsystem users through a netlink pin-get
do/dump messages. Allow the user to set Embedded SYNC frequency with
pin-set do netlink message.

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://patch.msgid.link/20240822222513.255179-2-arkadiusz.kubalewski@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-26 19:21:14 -07:00
Laurentiu Mihalcea
22652022c7
ASoC: SOF: ipc: replace "enum sof_comp_type" field with "uint32_t" 
Normally, the type of enums is "unsigned int" or "int". GCC has
the "-fshort-enums" option, which instructs the compiler to
use the smallest data type that can hold all the values in
the enum (i.e: char, short, int or their unsigned variants).

According to the GCC documentation, "-fshort-enums" may be
default on some targets. This seems to be the case for SOF
when built for a certain 32-bit ARM platform.

On Linux, this is not the case (tested with "aarch64-linux-gnu-gcc")
which means enums such as "enum sof_comp_type" will end up having
different sizes on Linux and SOF. Since "enum sof_comp_type" is used in
IPC-related structures such as "struct sof_ipc_comp", this means
the fields of the structures will end up being placed at different
offsets. This, in turn, leads to SOF not being able to properly
interpret data passed from Linux.

With this in mind, replace "enum sof_comp_type" from
"struct sof_ipc_comp" with "uint32_t".

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://patch.msgid.link/20240826182442.6191-1-laurentiumihalcea111@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-08-26 19:29:39 +01:00
Simon Horman
70d0bb45fa net: Correct spelling in headers 
Correct spelling in Networking headers.
As reported by codespell.

Signed-off-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240822-net-spell-v1-12-3a98971ce2d2@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-26 09:37:23 -07:00
Simon Horman
d24dac8eb8 packet: Correct spelling in if_packet.h 
Correct spelling in if_packet.h
As reported by codespell.

Signed-off-by: Simon Horman <horms@kernel.org>
Acked-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20240822-net-spell-v1-1-3a98971ce2d2@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-26 09:37:22 -07:00
Oleksij Rempel
abcd3026dd ethtool: Extend cable testing interface with result source information 
Extend the ethtool netlink cable testing interface by adding support for
specifying the source of cable testing results. This allows users to
differentiate between results obtained through different diagnostic
methods.

For example, some TI 10BaseT1L PHYs provide two variants of cable
diagnostics: Time Domain Reflectometry (TDR) and Active Link Cable
Diagnostic (ALCD). By introducing `ETHTOOL_A_CABLE_RESULT_SRC` and
`ETHTOOL_A_CABLE_FAULT_LENGTH_SRC` attributes, this update enables
drivers to indicate whether the result was derived from TDR or ALCD,
improving the clarity and utility of diagnostic information.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20240822120703.1393130-2-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-26 09:33:58 -07:00
Jakub Kicinski
e540e3bcf2 bpf-next-for-netdev 
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-08-23

We've added 10 non-merge commits during the last 15 day(s) which contain
a total of 10 files changed, 222 insertions(+), 190 deletions(-).

The main changes are:

1) Add TCP_BPF_SOCK_OPS_CB_FLAGS to bpf_*sockopt() to address the case
   when long-lived sockets miss a chance to set additional callbacks
   if a sockops program was not attached early in their lifetime,
   from Alan Maguire.

2) Add a batch of BPF selftest improvements which fix a few bugs and add
   missing features to improve the test coverage of sockmap/sockhash,
   from Michal Luczaj.

3) Fix a false-positive Smatch-reported off-by-one in tcp_validate_cookie()
   which is part of the test_tcp_custom_syncookie BPF selftest,
   from Kuniyuki Iwashima.

4) Fix the flow_dissector BPF selftest which had a bug in IP header's
   tot_len calculation doing subtraction after htons() instead of inside
   htons(), from Asbjørn Sloth Tønnesen.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next:
  selftest: bpf: Remove mssind boundary check in test_tcp_custom_syncookie.c.
  selftests/bpf: Introduce __attribute__((cleanup)) in create_pair()
  selftests/bpf: Exercise SOCK_STREAM unix_inet_redir_to_connected()
  selftests/bpf: Honour the sotype of af_unix redir tests
  selftests/bpf: Simplify inet_socketpair() and vsock_socketpair_connectible()
  selftests/bpf: Socket pair creation, cleanups
  selftests/bpf: Support more socket types in create_pair()
  selftests/bpf: Avoid subtraction after htons() in ipip tests
  selftests/bpf: add sockopt tests for TCP_BPF_SOCK_OPS_CB_FLAGS
  bpf/bpf_get,set_sockopt: add option to set TCP-BPF sock ops flags
====================

Link: https://patch.msgid.link/20240823134959.1091-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-26 08:50:29 -07:00
Nicolin Chen
1d4684fbe8 iommufd: Reorder include files 
Reorder include files to alphabetic order to simplify maintenance, and
separate local headers and global headers with a blank line.

No functional change intended.

Link: https://patch.msgid.link/r/7524b037cc05afe19db3c18f863253e1d1554fa2.1722644866.git.nicolinc@nvidia.com
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2024-08-26 12:02:03 -03:00
Jens Axboe
7ed9e09e2d io_uring: wire up min batch wake timeout 
Expose min_wait_usec in io_uring_getevents_arg, replacing the pad member
that is currently in there. The value is in usecs, which is explained in
the name as well.

Note that if min_wait_usec and a normal timeout is used in conjunction,
the normal timeout is still relative to the base time. For example, if
min_wait_usec is set to 100 and the normal timeout is 1000, the max
total time waited is still 1000. This also means that if the normal
timeout is shorter than min_wait_usec, then only the min_wait_usec will
take effect.

See previous commit for an explanation of how this works.

IORING_FEAT_MIN_TIMEOUT is added as a feature flag for this, as
applications doing submit_and_wait_timeout() style operations will
generally not see the -EINVAL from the wait side as they return the
number of IOs submitted. Only if no IOs are submitted will the -EINVAL
bubble back up to the application.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-08-25 08:27:01 -06:00
Pavel Begunkov
2b8e976b98 io_uring: user registered clockid for wait timeouts 
Add a new registration opcode IORING_REGISTER_CLOCK, which allows the
user to select which clock id it wants to use with CQ waiting timeouts.
It only allows a subset of all posix clocks and currently supports
CLOCK_MONOTONIC and CLOCK_BOOTTIME.

Suggested-by: Lewis Baker <lewissbaker@gmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/98f2bc8a3c36cdf8f0e6a275245e81e903459703.1723039801.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-08-25 08:27:01 -06:00
Pavel Begunkov
d29cb3726f io_uring: add absolute mode wait timeouts 
In addition to current relative timeouts for the waiting loop, where the
timespec argument specifies the maximum time it can wait for, add
support for the absolute mode, with the value carrying a CLOCK_MONOTONIC
absolute time until which we should return control back to the user.

Suggested-by: Lewis Baker <lewissbaker@gmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/4d5b74d67ada882590b2e42aa3aa7117bbf6b55f.1723039801.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-08-25 08:27:01 -06:00
Jordan Rome
65ab5ac4df bpf: Add bpf_copy_from_user_str kfunc 
This adds a kfunc wrapper around strncpy_from_user,
which can be called from sleepable BPF programs.

This matches the non-sleepable 'bpf_probe_read_user_str'
helper except it includes an additional 'flags'
param, which allows consumers to clear the entire
destination buffer on success or failure.

Signed-off-by: Jordan Rome <linux@jordanrome.com>
Link: https://lore.kernel.org/r/20240823195101.3621028-1-linux@jordanrome.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2024-08-23 15:40:01 -07:00
Dave Marchevsky
b0966c7245 bpf: Support bpf_kptr_xchg into local kptr 
Currently, users can only stash kptr into map values with bpf_kptr_xchg().
This patch further supports stashing kptr into local kptr by adding local
kptr as a valid destination type.

When stashing into local kptr, btf_record in program BTF is used instead
of btf_record in map to search for the btf_field of the local kptr.

The local kptr specific checks in check_reg_type() only apply when the
source argument of bpf_kptr_xchg() is local kptr. Therefore, we make the
scope of the check explicit as the destination now can also be local kptr.

Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Amery Hung <amery.hung@bytedance.com>
Link: https://lore.kernel.org/r/20240813212424.2871455-5-amery.hung@bytedance.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2024-08-23 11:39:33 -07:00
Maxime Chevallier
17194be4c8 net: ethtool: Introduce a command to list PHYs on an interface 
As we have the ability to track the PHYs connected to a net_device
through the link_topology, we can expose this list to userspace. This
allows userspace to use these identifiers for phy-specific commands and
take the decision of which PHY to target by knowing the link topology.

Add PHY_GET and PHY_DUMP, which can be a filtered DUMP operation to list
devices on only one interface.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2024-08-23 13:04:34 +01:00
Maxime Chevallier
c15e065b46 net: ethtool: Allow passing a phy index for some commands 
Some netlink commands are target towards ethernet PHYs, to control some
of their features. As there's several such commands, add the ability to
pass a PHY index in the ethnl request, which will populate the generic
ethnl_req_info with the passed phy_index.

Add a helper that netlink command handlers need to use to grab the
targeted PHY from the req_info. This helper needs to hold rtnl_lock()
while interacting with the PHY, as it may be removed at any point.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2024-08-23 13:04:34 +01:00
Maxime Chevallier
3849687869 net: phy: Introduce ethernet link topology representation 
Link topologies containing multiple network PHYs attached to the same
net_device can be found when using a PHY as a media converter for use
with an SFP connector, on which an SFP transceiver containing a PHY can
be used.

With the current model, the transceiver's PHY can't be used for
operations such as cable testing, timestamping, macsec offload, etc.

The reason being that most of the logic for these configuration, coming
from either ethtool netlink or ioctls tend to use netdev->phydev, which
in multi-phy systems will reference the PHY closest to the MAC.

Introduce a numbering scheme allowing to enumerate PHY devices that
belong to any netdev, which can in turn allow userspace to take more
precise decisions with regard to each PHY's configuration.

The numbering is maintained per-netdev, in a phy_device_list.
The numbering works similarly to a netdevice's ifindex, with
identifiers that are only recycled once INT_MAX has been reached.

This prevents races that could occur between PHY listing and SFP
transceiver removal/insertion.

The identifiers are assigned at phy_attach time, as the numbering
depends on the netdevice the phy is attached to. The PHY index can be
re-used for PHYs that are persistent.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2024-08-23 13:04:34 +01:00
Jakub Kicinski
761d527d5d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

drivers/net/ethernet/broadcom/bnxt/bnxt.h
  c948c0973d ("bnxt_en: Don't clear ntuple filters and rss contexts during ethtool ops")
  f2878cdeb7 ("bnxt_en: Add support to call FW to update a VNIC")

Link: https://patch.msgid.link/20240822210125.1542769-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-22 17:06:18 -07:00
Kees Cook
5ac86f0ed0 virt: vbox: struct vmmdev_hgcm_pagelist: Replace 1-element array with flexible array 
Replace the deprecated[1] use of a 1-element array in
struct vmmdev_hgcm_pagelist with a modern flexible array. As this is
UAPI, we cannot trivially change the size of the struct, so use a union
to retain the old first element's size, but switch "pages" to a flexible
array.

No binary differences are present after this conversion.

Link: https://github.com/KSPP/linux/issues/79 [1]
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20240710231555.work.406-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
 2024-08-22 16:56:24 -07:00
Chris Wulff
a139c98f76 USB: gadget: f_hid: Add GET_REPORT via userspace IOCTL 
While supporting GET_REPORT is a mandatory request per the HID
specification the current implementation of the GET_REPORT request responds
to the USB Host with an empty reply of the request length. However, some
USB Hosts will request the contents of feature reports via the GET_REPORT
request. In addition, some proprietary HID 'protocols' will expect
different data, for the same report ID, to be to become available in the
feature report by sending a preceding SET_REPORT to the USB Device that
defines what data is to be presented when that feature report is
subsequently retrieved via GET_REPORT (with a very fast < 5ms turn around
between the SET_REPORT and the GET_REPORT).

There are two other patch sets already submitted for adding GET_REPORT
support. The first [1] allows for pre-priming a list of reports via IOCTLs
which then allows the USB Host to perform the request, with no further
userspace interaction possible during the GET_REPORT request. And another
[2] which allows for a single report to be setup by userspace via IOCTL,
which will be fetched and returned by the kernel for subsequent GET_REPORT
requests by the USB Host, also with no further userspace interaction
possible.

This patch, while loosely based on both the patch sets, differs by allowing
the option for userspace to respond to each GET_REPORT request by setting
up a poll to notify userspace that a new GET_REPORT request has arrived. To
support this, two extra IOCTLs are supplied. The first of which is used to
retrieve the report ID of the GET_REPORT request (in the case of having
non-zero report IDs in the HID descriptor). The second IOCTL allows for
storing report responses in a list for responding to requests.

The report responses are stored in a list (it will be either added if it
does not exist or updated if it exists already). A flag (userspace_req) can
be set to whether subsequent requests notify userspace or not.

Basic operation when a GET_REPORT request arrives from USB Host:

- If the report ID exists in the list and it is set for immediate return
  (i.e. userspace_req == false) then response is sent immediately,
userspace is not notified

- The report ID does not exist, or exists but is set to notify userspace
  (i.e. userspace_req == true) then notify userspace via poll:

	- If userspace responds, and either adds or update the response in
	  the list and respond to the host with the contents

	- If userspace does not respond within the fixed timeout (2500ms)
	  but the report has been set prevously, then send 'old' report
	  contents

	- If userspace does not respond within the fixed timeout (2500ms)
	  and the report does not exist in the list then send an empty
	  report

Note that userspace could 'prime' the report list at any other time.

While this patch allows for flexibility in how the system responds to
requests, and therefore the HID 'protocols' that could be supported, a
drawback is the time it takes to service the requests and therefore the
maximum throughput that would be achievable. The USB HID Specification
v1.11 itself states that GET_REPORT is not intended for periodic data
polling, so this limitation is not severe.

Testing on an iMX8M Nano Ultra Lite with a heavy multi-core CPU loading
showed that userspace can typically respond to the GET_REPORT request
within 1200ms - which is well within the 5000ms most operating systems seem
to allow, and within the 2500ms set by this patch.

[1] https://lore.kernel.org/all/20220805070507.123151-2-sunil@amarulasolutions.com/
[2] https://lore.kernel.org/all/20220726005824.2817646-1-vi@endrift.com/

Signed-off-by: David Sands <david.sands@biamp.com>
Signed-off-by: Chris Wulff <chris.wulff@biamp.com>
Link: https://lore.kernel.org/r/20240817142850.1311460-2-crwulff@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-08-22 17:25:59 +08:00
Justin Iurman
273f8c1420 net: ipv6: ioam6: new feature tunsrc 
This patch provides a new feature (i.e., "tunsrc") for the tunnel (i.e.,
"encap") mode of ioam6. Just like seg6 already does, except it is
attached to a route. The "tunsrc" is optional: when not provided (by
default), the automatic resolution is applied. Using "tunsrc" when
possible has a benefit: performance. See the comparison:
 - before (= "encap" mode): https://ibb.co/bNCzvf7
 - after (= "encap" mode with "tunsrc"): https://ibb.co/PT8L6yq

Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2024-08-22 10:45:12 +02:00
Juha-Pekka Heikkila
5151fa35ae
drm/fourcc: define Intel Xe2 related tile4 ccs modifiers 
Add Tile4 type ccs modifiers to indicate presence of compression on Xe2.
Here is defined I915_FORMAT_MOD_4_TILED_LNL_CCS which is meant for
integrated graphics with igpu related limitations
Here is also defined I915_FORMAT_MOD_4_TILED_BMG_CCS which is meant
for discrete graphics with dgpu related limitations

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240816115229.531671-3-juhapekka.heikkila@gmail.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
 2024-08-21 16:29:42 -04:00
Deven Bowers
f44554b506 audit,ipe: add IPE auditing support 
Users of IPE require a way to identify when and why an operation fails,
allowing them to both respond to violations of policy and be notified
of potentially malicious actions on their systems with respect to IPE
itself.

This patch introduces 3 new audit events.

AUDIT_IPE_ACCESS(1420) indicates the result of an IPE policy evaluation
of a resource.
AUDIT_IPE_CONFIG_CHANGE(1421) indicates the current active IPE policy
has been changed to another loaded policy.
AUDIT_IPE_POLICY_LOAD(1422) indicates a new IPE policy has been loaded
into the kernel.

This patch also adds support for success auditing, allowing users to
identify why an allow decision was made for a resource. However, it is
recommended to use this option with caution, as it is quite noisy.

Here are some examples of the new audit record types:

AUDIT_IPE_ACCESS(1420):

    audit: AUDIT1420 ipe_op=EXECUTE ipe_hook=BPRM_CHECK enforcing=1
      pid=297 comm="sh" path="/root/vol/bin/hello" dev="tmpfs"
      ino=3897 rule="op=EXECUTE boot_verified=TRUE action=ALLOW"

    audit: AUDIT1420 ipe_op=EXECUTE ipe_hook=BPRM_CHECK enforcing=1
      pid=299 comm="sh" path="/mnt/ipe/bin/hello" dev="dm-0"
      ino=2 rule="DEFAULT action=DENY"

    audit: AUDIT1420 ipe_op=EXECUTE ipe_hook=BPRM_CHECK enforcing=1
     pid=300 path="/tmp/tmpdp2h1lub/deny/bin/hello" dev="tmpfs"
      ino=131 rule="DEFAULT action=DENY"

The above three records were generated when the active IPE policy only
allows binaries from the initramfs to run. The three identical `hello`
binary were placed at different locations, only the first hello from
the rootfs(initramfs) was allowed.

Field ipe_op followed by the IPE operation name associated with the log.

Field ipe_hook followed by the name of the LSM hook that triggered the IPE
event.

Field enforcing followed by the enforcement state of IPE. (it will be
introduced in the next commit)

Field pid followed by the pid of the process that triggered the IPE
event.

Field comm followed by the command line program name of the process that
triggered the IPE event.

Field path followed by the file's path name.

Field dev followed by the device name as found in /dev where the file is
from.
Note that for device mappers it will use the name `dm-X` instead of
the name in /dev/mapper.
For a file in a temp file system, which is not from a device, it will use
`tmpfs` for the field.
The implementation of this part is following another existing use case
LSM_AUDIT_DATA_INODE in security/lsm_audit.c

Field ino followed by the file's inode number.

Field rule followed by the IPE rule made the access decision. The whole
rule must be audited because the decision is based on the combination of
all property conditions in the rule.

Along with the syscall audit event, user can know why a blocked
happened. For example:

    audit: AUDIT1420 ipe_op=EXECUTE ipe_hook=BPRM_CHECK enforcing=1
      pid=2138 comm="bash" path="/mnt/ipe/bin/hello" dev="dm-0"
      ino=2 rule="DEFAULT action=DENY"
    audit[1956]: SYSCALL arch=c000003e syscall=59
      success=no exit=-13 a0=556790138df0 a1=556790135390 a2=5567901338b0
      a3=ab2a41a67f4f1f4e items=1 ppid=147 pid=1956 auid=4294967295 uid=0
      gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0
      ses=4294967295 comm="bash" exe="/usr/bin/bash" key=(null)

The above two records showed bash used execve to run "hello" and got
blocked by IPE. Note that the IPE records are always prior to a SYSCALL
record.

AUDIT_IPE_CONFIG_CHANGE(1421):

    audit: AUDIT1421
      old_active_pol_name="Allow_All" old_active_pol_version=0.0.0
      old_policy_digest=sha256:E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649
      new_active_pol_name="boot_verified" new_active_pol_version=0.0.0
      new_policy_digest=sha256:820EEA5B40CA42B51F68962354BA083122A20BB846F
      auid=4294967295 ses=4294967295 lsm=ipe res=1

The above record showed the current IPE active policy switch from
`Allow_All` to `boot_verified` along with the version and the hash
digest of the two policies. Note IPE can only have one policy active
at a time, all access decision evaluation is based on the current active
policy.
The normal procedure to deploy a policy is loading the policy to deploy
into the kernel first, then switch the active policy to it.

AUDIT_IPE_POLICY_LOAD(1422):

    audit: AUDIT1422 policy_name="boot_verified" policy_version=0.0.0
      policy_digest=sha256:820EEA5B40CA42B51F68962354BA083122A20BB846F2676
      auid=4294967295 ses=4294967295 lsm=ipe res=1

The above record showed a new policy has been loaded into the kernel
with the policy name, policy version and policy hash.

Signed-off-by: Deven Bowers <deven.desai@linux.microsoft.com>
Signed-off-by: Fan Wu <wufan@linux.microsoft.com>
[PM: subject line tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>
 2024-08-20 14:02:22 -04:00
Ido Schimmel
1fa3314c14 ipv4: Centralize TOS matching 
The TOS field in the IPv4 flow information structure ('flowi4_tos') is
matched by the kernel against the TOS selector in IPv4 rules and routes.
The field is initialized differently by different call sites. Some treat
it as DSCP (RFC 2474) and initialize all six DSCP bits, some treat it as
RFC 1349 TOS and initialize it using RT_TOS() and some treat it as RFC
791 TOS and initialize it using IPTOS_RT_MASK.

What is common to all these call sites is that they all initialize the
lower three DSCP bits, which fits the TOS definition in the initial IPv4
specification (RFC 791).

Therefore, the kernel only allows configuring IPv4 FIB rules that match
on the lower three DSCP bits which are always guaranteed to be
initialized by all call sites:

 # ip -4 rule add tos 0x1c table 100
 # ip -4 rule add tos 0x3c table 100
 Error: Invalid tos.

While this works, it is unlikely to be very useful. RFC 791 that
initially defined the TOS and IP precedence fields was updated by RFC
2474 over twenty five years ago where these fields were replaced by a
single six bits DSCP field.

Extending FIB rules to match on DSCP can be done by adding a new DSCP
selector while maintaining the existing semantics of the TOS selector
for applications that rely on that.

A prerequisite for allowing FIB rules to match on DSCP is to adjust all
the call sites to initialize the high order DSCP bits and remove their
masking along the path to the core where the field is matched on.

However, making this change alone will result in a behavior change. For
example, a forwarded IPv4 packet with a DS field of 0xfc will no longer
match a FIB rule that was configured with 'tos 0x1c'.

This behavior change can be avoided by masking the upper three DSCP bits
in 'flowi4_tos' before comparing it against the TOS selectors in FIB
rules and routes.

Implement the above by adding a new function that checks whether a given
DSCP value matches the one specified in the IPv4 flow information
structure and invoke it from the three places that currently match on
'flowi4_tos'.

Use RT_TOS() for the masking of 'flowi4_tos' instead of IPTOS_RT_MASK
since the latter is not uAPI and we should be able to remove it at some
point.

Include <linux/ip.h> in <linux/in_route.h> since the former defines
IPTOS_TOS_MASK which is used in the definition of RT_TOS() in
<linux/in_route.h>.

No regressions in FIB tests:

 # ./fib_tests.sh
 [...]
 Tests passed: 218
 Tests failed:   0

And FIB rule tests:

 # ./fib_rule_tests.sh
 [...]
 Tests passed: 116
 Tests failed:   0

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2024-08-20 14:57:08 +02:00
Wen Gu
e0d103542b net/smc: introduce statistics for ringbufs usage of net namespace 
The buffer size histograms in smc_stats, namely rx/tx_rmbsize, record
the sizes of ringbufs for all connections that have ever appeared in
the net namespace. They are incremental and we cannot know the actual
ringbufs usage from these. So here introduces statistics for current
ringbufs usage of existing smc connections in the net namespace into
smc_stats, it will be incremented when new connection uses a ringbuf
and decremented when the ringbuf is unused.

Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2024-08-20 11:38:23 +02:00
Wen Gu
d386d59b7c net/smc: introduce statistics for allocated ringbufs of link group 
Currently we have the statistics on sndbuf/RMB sizes of all connections
that have ever been on the link group, namely smc_stats_memsize. However
these statistics are incremental and since the ringbufs of link group
are allowed to be reused, we cannot know the actual allocated buffers
through these. So here introduces the statistic on actual allocated
ringbufs of the link group, it will be incremented when a new ringbuf is
added into buf_list and decremented when it is deleted from buf_list.

Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2024-08-20 11:38:23 +02:00
Deven Bowers
0311507792 lsm: add IPE lsm 
Integrity Policy Enforcement (IPE) is an LSM that provides an
complimentary approach to Mandatory Access Control than existing LSMs
today.

Existing LSMs have centered around the concept of access to a resource
should be controlled by the current user's credentials. IPE's approach,
is that access to a resource should be controlled by the system's trust
of a current resource.

The basis of this approach is defining a global policy to specify which
resource can be trusted.

Signed-off-by: Deven Bowers <deven.desai@linux.microsoft.com>
Signed-off-by: Fan Wu <wufan@linux.microsoft.com>
[PM: subject line tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>
 2024-08-19 22:36:26 -04:00
Geert Uytterhoeven
ad614a706b
drm/xe/oa/uapi: Make bit masks unsigned 
When building with gcc-5:

    In function ‘decode_oa_format.isra.26’,
	inlined from ‘xe_oa_set_prop_oa_format’ at drivers/gpu/drm/xe/xe_oa.c:1664:6:
    ././include/linux/compiler_types.h:510:38: error: call to ‘__compiletime_assert_1336’ declared with attribute error: FIELD_GET: mask is not constant
    [...]
    ./include/linux/bitfield.h:155:3: note: in expansion of macro ‘__BF_FIELD_CHECK’
       __BF_FIELD_CHECK(_mask, _reg, 0U, "FIELD_GET: "); \
       ^
    drivers/gpu/drm/xe/xe_oa.c:1573:18: note: in expansion of macro ‘FIELD_GET’
      u32 bc_report = FIELD_GET(DRM_XE_OA_FORMAT_MASK_BC_REPORT, fmt);
		      ^

Fixes: b6fd51c621 ("drm/xe/oa/uapi: Define and parse OA stream properties")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240729092634.2227611-1-geert+renesas@glider.be
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit f2881dfdaa)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
 2024-08-19 10:44:18 -04:00
Christian Brauner
820a185896 fcntl: add F_CREATED_QUERY 
Systemd has a helper called openat_report_new() that returns whether a
file was created anew or it already existed before for cases where
O_CREAT has to be used without O_EXCL (cf. [1]). That apparently isn't
something that's specific to systemd but it's where I noticed it.

The current logic is that it first attempts to open the file without
O_CREAT | O_EXCL and if it gets ENOENT the helper tries again with both
flags. If that succeeds all is well. If it now reports EEXIST it
retries.

That works fairly well but some corner cases make this more involved. If
this operates on a dangling symlink the first openat() without O_CREAT |
O_EXCL will return ENOENT but the second openat() with O_CREAT | O_EXCL
will fail with EEXIST. The reason is that openat() without O_CREAT |
O_EXCL follows the symlink while O_CREAT | O_EXCL doesn't for security
reasons. So it's not something we can really change unless we add an
explicit opt-in via O_FOLLOW which seems really ugly.

The caller could try and use fanotify() to register to listen for
creation events in the directory before calling openat(). The caller
could then compare the returned tid to its own tid to ensure that even
in threaded environments it actually created the file. That might work
but is a lot of work for something that should be fairly simple and I'm
uncertain about it's reliability.

The caller could use a bpf lsm hook to hook into security_file_open() to
figure out whether they created the file. That also seems a bit wild.

So let's add F_CREATED_QUERY which allows the caller to check whether
they actually did create the file. That has caveats of course but I
don't think they are problematic:

* In multi-threaded environments a thread can only be sure that it did
  create the file if it calls openat() with O_CREAT. In other words,
  it's obviously not enough to just go through it's fdtable and check
  these fds because another thread could've created the file.

* If there's any codepaths where an openat() with O_CREAT would yield
  the same struct file as that of another thread it would obviously
  cause wrong results. I'm not aware of any such codepaths from openat()
  itself. Imho, that would be a bug.

* Related to the previous point, calling the new fcntl() on files created
  and opened via special-purpose system calls or ioctl()s would cause
  wrong results only if the affected subsystem a) raises FMODE_CREATED
  and b) may return the same struct file for two different calls. I'm
  not seeing anything outside of regular VFS code that raises
  FMODE_CREATED.

  There is code for b) in e.g., the drm layer where the same struct file
  is resurfaced but again FMODE_CREATED isn't used and it would be very
  misleading if it did.

Link: 11d5e2b5fb/src/basic/fs-util.c (L1078) [1]
Link: https://lore.kernel.org/r/20240724-work-fcntl-v1-1-e8153a2f1991@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
 2024-08-19 13:44:34 +02:00
Takashi Iwai
41776e4008 Merge branch 'topic/seq-filter-cleanup' into for-next 
Pull ALSA sequencer cleanup.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
 2024-08-19 10:48:46 +02:00
Greg Kroah-Hartman
ca7df2c7bb Merge 6.11-rc4 into usb-next 
We need the usb / thunderbolt fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-08-19 06:16:49 +02:00
Greg Kroah-Hartman
10c8d1bd78 Merge 6.11-rc4 into char-misc-next 
We need the char/misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-08-19 06:02:26 +02:00
Linus Torvalds
e1bc113215 Char/Misc fixes for 6.11-rc4 
Here are some small char/misc fixes for 6.11-rc4 to resolve reported
 problems.  Included in here are:
   - fastrpc revert of a change that broke userspace
   - xillybus fixes for reported issues
 
 Half of these have been in linux-next this week with no reported
 problems, I don't know if the last bit of xillybus driver changes made
 it in, but they are "obviously correct" so will be safe :)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc fixes from Greg KH:
 "Here are some small char/misc fixes for 6.11-rc4 to resolve reported
  problems. Included in here are:

   - fastrpc revert of a change that broke userspace

   - xillybus fixes for reported issues

  Half of these have been in linux-next this week with no reported
  problems, I don't know if the last bit of xillybus driver changes made
  it in, but they are 'obviously correct' so will be safe :)"

* tag 'char-misc-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  char: xillybus: Check USB endpoints when probing device
  char: xillybus: Refine workqueue handling
  Revert "misc: fastrpc: Restrict untrusted app to attach to privileged PD"
  char: xillybus: Don't destroy workqueue from work item running on it
 2024-08-18 10:16:34 -07:00
Ivan Orlov
37745918e0 ALSA: timer: Introduce virtual userspace-driven timers 
Implement two ioctl calls in order to support virtual userspace-driven
ALSA timers.

The first ioctl is SNDRV_TIMER_IOCTL_CREATE, which gets the
snd_timer_uinfo struct as a parameter and puts a file descriptor of a
virtual timer into the `fd` field of the snd_timer_unfo structure. It
also updates the `id` field of the snd_timer_uinfo struct, which
provides a unique identifier for the timer (basically, the subdevice
number which can be used when creating timer instances).

This patch also introduces a tiny id allocator for the userspace-driven
timers, which guarantees that we don't have more than 128 of them in the
system.

Another ioctl is SNDRV_TIMER_IOCTL_TRIGGER, which allows us to trigger
the virtual timer (and calls snd_timer_interrupt for the timer under
the hood), causing all of the timer instances binded to this timer to
execute their callbacks.

The maximum amount of ticks available for the timer is 1 for the sake of
simplicity of the userspace API. 'start', 'stop', 'open' and 'close'
callbacks for the userspace-driven timers are empty since we don't
really do any hardware initialization here.

Suggested-by: Axel Holzinger <aholzinger@gmx.de>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20240813120701.171743-4-ivan.orlov0322@gmail.com
 2024-08-18 09:55:54 +02:00
Linus Torvalds
c5ac744cdd io_uring-6.11-20240824 
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Merge tag 'io_uring-6.11-20240824' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a comment in the uapi header using the wrong member name (Caleb)

 - Fix KCSAN warning for a debug check in sqpoll (me)

 - Two more NAPI tweaks (Olivier)

* tag 'io_uring-6.11-20240824' of git://git.kernel.dk/linux:
  io_uring: fix user_data field name in comment
  io_uring/sqpoll: annotate debug task == current with data_race()
  io_uring/napi: remove duplicate io_napi_entry timeout assignation
  io_uring/napi: check napi_enabled in io_napi_add() before proceeding
 2024-08-16 14:00:05 -07:00
Caleb Sander Mateos
1fc2ac428e io_uring: fix user_data field name in comment 
io_uring_cqe's user_data field refers to `sqe->data`, but io_uring_sqe
does not have a data field. Fix the comment to say `sqe->user_data`.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://github.com/axboe/liburing/pull/1206
Link: https://lore.kernel.org/r/20240816181526.3642732-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-08-16 12:31:26 -06:00
Oleksij Rempel
2140e63cd8 ethtool: Add new result codes for TDR diagnostics 
Add new result codes to support TDR diagnostics in preparation for
Open Alliance 1000BaseT1 TDR support:

- ETHTOOL_A_CABLE_RESULT_CODE_NOISE: TDR not possible due to high noise
  level.
- ETHTOOL_A_CABLE_RESULT_CODE_RESOLUTION_NOT_POSSIBLE: TDR resolution not
  possible / out of distance.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20240812073046.1728288-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-16 10:16:16 -07:00
Jakub Kicinski
4d3d3559fc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Cross-merge networking fixes after downstream PR.

Conflicts:

Documentation/devicetree/bindings/net/fsl,qoriq-mc-dpmac.yaml
  c25504a0ba ("dt-bindings: net: fsl,qoriq-mc-dpmac: add missed property phys")
  be034ee6c3 ("dt-bindings: net: fsl,qoriq-mc-dpmac: using unevaluatedProperties")
https://lore.kernel.org/20240815110934.56ae623a@canb.auug.org.au

drivers/net/dsa/vitesse-vsc73xx-core.c
  5b9eebc2c7 ("net: dsa: vsc73xx: pass value in phy_write operation")
  fa63c6434b ("net: dsa: vsc73xx: check busy flag in MDIO operations")
  2524d6c28b ("net: dsa: vsc73xx: use defined values in phy operations")
https://lore.kernel.org/20240813104039.429b9fe6@canb.auug.org.au
Resolve by using FIELD_PREP(), Stephen's resolution is simpler.

Adjacent changes:

net/vmw_vsock/af_vsock.c
  69139d2919 ("vsock: fix recursive ->recvmsg calls")
  744500d81f ("vsock: add support for SIOCOUTQ ioctl")

Link: https://patch.msgid.link/20240815141149.33862-1-pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-15 17:18:52 -07:00
Griffin Kroah-Hartman
9bb5e74b2b Revert "misc: fastrpc: Restrict untrusted app to attach to privileged PD" 
This reverts commit bab2f5e8fd.

Joel reported that this commit breaks userspace and stops sensors in
SDM845 from working. Also breaks other qcom SoC devices running postmarketOS.

Cc: stable <stable@kernel.org>
Cc: Ekansh Gupta <quic_ekangupt@quicinc.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reported-by: Joel Selvaraj <joelselvaraj.oss@gmail.com>
Link: https://lore.kernel.org/r/9a9f5646-a554-4b65-8122-d212bb665c81@umsystem.edu
Signed-off-by: Griffin Kroah-Hartman <griffin@kroah.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Fixes: bab2f5e8fd ("misc: fastrpc: Restrict untrusted app to attach to privileged PD")
Link: https://lore.kernel.org/r/20240815094920.8242-1-griffin@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-08-15 16:59:14 +02:00
Gustavo A. R. Silva
216203bdc2 UAPI: net/sched: Use __struct_group() in flex struct tc_u32_sel 
Use the `__struct_group()` helper to create a new tagged
`struct tc_u32_sel_hdr`. This structure groups together all the
members of the flexible `struct tc_u32_sel` except the flexible
array. As a result, the array is effectively separated from the
rest of the members without modifying the memory layout of the
flexible structure.

This new tagged struct will be used to fix problematic declarations
of middle-flex-arrays in composite structs[1].

[1] https://git.kernel.org/linus/d88cabfd9abc

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://patch.msgid.link/e59fe833564ddc5b2cc83056a4c504be887d6193.1723586870.git.gustavoars@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-14 20:37:47 -07:00
Linus Torvalds
d07b43284a s390: 
* Fix failure to start guests with kvm.use_gisa=0
 
 * Panic if (un)share fails to maintain security.
 
 ARM:
 
 * Use kvfree() for the kvmalloc'd nested MMUs array
 
 * Set of fixes to address warnings in W=1 builds
 
 * Make KVM depend on assembler support for ARMv8.4
 
 * Fix for vgic-debug interface for VMs without LPIs
 
 * Actually check ID_AA64MMFR3_EL1.S1PIE in get-reg-list selftest
 
 * Minor code / comment cleanups for configuring PAuth traps
 
 * Take kvm->arch.config_lock to prevent destruction / initialization
   race for a vCPU's CPUIF which may lead to a UAF
 
 x86:
 
 * Disallow read-only memslots for SEV-ES and SEV-SNP (and TDX)
 
 * Fix smatch issues
 
 * Small cleanups
 
 * Make x2APIC ID 100% readonly
 
 * Fix typo in uapi constant
 
 Generic:
 
 * Use synchronize_srcu_expedited() on irqfd shutdown
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "s390:

   - Fix failure to start guests with kvm.use_gisa=0

   - Panic if (un)share fails to maintain security.

  ARM:

   - Use kvfree() for the kvmalloc'd nested MMUs array

   - Set of fixes to address warnings in W=1 builds

   - Make KVM depend on assembler support for ARMv8.4

   - Fix for vgic-debug interface for VMs without LPIs

   - Actually check ID_AA64MMFR3_EL1.S1PIE in get-reg-list selftest

   - Minor code / comment cleanups for configuring PAuth traps

   - Take kvm->arch.config_lock to prevent destruction / initialization
     race for a vCPU's CPUIF which may lead to a UAF

  x86:

   - Disallow read-only memslots for SEV-ES and SEV-SNP (and TDX)

   - Fix smatch issues

   - Small cleanups

   - Make x2APIC ID 100% readonly

   - Fix typo in uapi constant

  Generic:

   - Use synchronize_srcu_expedited() on irqfd shutdown"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits)
  KVM: SEV: uapi: fix typo in SEV_RET_INVALID_CONFIG
  KVM: x86: Disallow read-only memslots for SEV-ES and SEV-SNP (and TDX)
  KVM: eventfd: Use synchronize_srcu_expedited() on shutdown
  KVM: selftests: Add a testcase to verify x2APIC is fully readonly
  KVM: x86: Make x2APIC ID 100% readonly
  KVM: x86: Use this_cpu_ptr() instead of per_cpu_ptr(smp_processor_id())
  KVM: x86: hyper-v: Remove unused inline function kvm_hv_free_pa_page()
  KVM: SVM: Fix an error code in sev_gmem_post_populate()
  KVM: SVM: Fix uninitialized variable bug
  KVM: arm64: vgic: Hold config_lock while tearing down a CPU interface
  KVM: selftests: arm64: Correct feature test for S1PIE in get-reg-list
  KVM: arm64: Tidying up PAuth code in KVM
  KVM: arm64: vgic-debug: Exit the iterator properly w/o LPI
  KVM: arm64: Enforce dependency on an ARMv8.4-aware toolchain
  s390/uv: Panic for set and remove shared access UVC errors
  KVM: s390: fix validity interception issue when gisa is switched off
  docs: KVM: Fix register ID of SPSR_FIQ
  KVM: arm64: vgic: fix unexpected unlock sparse warnings
  KVM: arm64: fix kdoc warnings in W=1 builds
  KVM: arm64: fix override-init warnings in W=1 builds
  ...
 2024-08-14 13:46:24 -07:00
Amit Shah
1c0e588169 KVM: SEV: uapi: fix typo in SEV_RET_INVALID_CONFIG 
"INVALID" is misspelt in "SEV_RET_INAVLID_CONFIG". Since this is part of
the UAPI, keep the current definition and add a new one with the fix.

Fix-suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Amit Shah <amit.shah@amd.com>
Message-ID: <20240814083113.21622-1-amit@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2024-08-14 13:05:42 -04:00
Linus Torvalds
4ac0f08f44 vfs-6.11-rc4.fixes 
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Merge tag 'vfs-6.11-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:
 "VFS:

   - Fix the name of file lease slab cache. When file leases were split
     out of file locks the name of the file lock slab cache was used for
     the file leases slab cache as well.

   - Fix a type in take_fd() helper.

   - Fix infinite directory iteration for stable offsets in tmpfs.

   - When the icache is pruned all reclaimable inodes are marked with
     I_FREEING and other processes that try to lookup such inodes will
     block.

     But some filesystems like ext4 can trigger lookups in their inode
     evict callback causing deadlocks. Ext4 does such lookups if the
     ea_inode feature is used whereby a separate inode may be used to
     store xattrs.

     Introduce I_LRU_ISOLATING which pins the inode while its pages are
     reclaimed. This avoids inode deletion during inode_lru_isolate()
     avoiding the deadlock and evict is made to wait until
     I_LRU_ISOLATING is done.

  netfs:

   - Fault in smaller chunks for non-large folio mappings for
     filesystems that haven't been converted to large folios yet.

   - Fix the CONFIG_NETFS_DEBUG config option. The config option was
     renamed a short while ago and that introduced two minor issues.
     First, it depended on CONFIG_NETFS whereas it wants to depend on
     CONFIG_NETFS_SUPPORT. The former doesn't exist, while the latter
     does. Second, the documentation for the config option wasn't fixed
     up.

   - Revert the removal of the PG_private_2 writeback flag as ceph is
     using it and fix how that flag is handled in netfs.

   - Fix DIO reads on 9p. A program watching a file on a 9p mount
     wouldn't see any changes in the size of the file being exported by
     the server if the file was changed directly in the source
     filesystem. Fix this by attempting to read the full size specified
     when a DIO read is requested.

   - Fix a NULL pointer dereference bug due to a data race where a
     cachefiles cookies was retired even though it was still in use.
     Check the cookie's n_accesses counter before discarding it.

  nsfs:

   - Fix ioctl declaration for NS_GET_MNTNS_ID from _IO() to _IOR() as
     the kernel is writing to userspace.

  pidfs:

   - Prevent the creation of pidfds for kthreads until we have a
     use-case for it and we know the semantics we want. It also confuses
     userspace why they can get pidfds for kthreads.

  squashfs:

   - Fix an unitialized value bug reported by KMSAN caused by a
     corrupted symbolic link size read from disk. Check that the
     symbolic link size is not larger than expected"

* tag 'vfs-6.11-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  Squashfs: sanity check symbolic link size
  9p: Fix DIO read through netfs
  vfs: Don't evict inode under the inode lru traversing context
  netfs: Fix handling of USE_PGPRIV2 and WRITE_TO_CACHE flags
  netfs, ceph: Revert "netfs: Remove deprecated use of PG_private_2 as a second writeback flag"
  file: fix typo in take_fd() comment
  pidfd: prevent creation of pidfds for kthreads
  netfs: clean up after renaming FSCACHE_DEBUG config
  libfs: fix infinite directory reads for offset dir
  nsfs: fix ioctl declaration
  fs/netfs/fscache_cookie: add missing "n_accesses" check
  filelock: fix name of file_lease slab cache
  netfs: Fault in smaller chunks for non-large folio mappings
 2024-08-14 09:06:28 -07:00
Paul Elder
ac79beb913 media: rkisp1: Add support for the companding block 
Add support to the rkisp1 driver for the companding block that exists on
the i.MX8MP version of the ISP. This requires usage of the new
extensible parameters format, and showcases how the format allows for
extensions without breaking backward compatibility.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 2024-08-14 16:42:58 +03:00
David Sands
c26cee817f usb: gadget: f_fs: add capability for dfu functional descriptor 
Add the ability for the USB FunctionFS (FFS) gadget driver to be able
to create Device Firmware Upgrade (DFU) functional descriptors. [1]

This patch allows implementation of DFU in userspace using the
FFS gadget. The DFU protocol uses the control pipe (ep0) for all
messaging so only the addition of the DFU functional descriptor
is needed in the kernel driver.

The DFU functional descriptor is written to the ep0 file along with
any other descriptors during FFS setup. DFU requires an interface
descriptor followed by the DFU functional descriptor.

This patch includes documentation of the added descriptor for DFU
and conversion of some existing documentation to kernel-doc format
so that it can be included in the generated docs.

An implementation of DFU 1.1 that implements just the runtime descriptor
using the FunctionFS gadget (with rebooting into u-boot for DFU mode)
has been tested on an i.MX8 Nano.

An implementation of DFU 1.1 that implements both runtime and DFU mode
using the FunctionFS gadget has been tested on Xilinx Zynq UltraScale+.
Note that for the best performance of firmware update file transfers, the
userspace program should respond as quick as possible to the setup packets.

[1] https://www.usb.org/sites/default/files/DFU_1.1.pdf

Signed-off-by: David Sands <david.sands@biamp.com>
Co-developed-by: Chris Wulff <crwulff@gmail.com>
Signed-off-by: Chris Wulff <crwulff@gmail.com>
Link: https://lore.kernel.org/r/20240811000004.1395888-2-crwulff@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-08-13 10:38:46 +02:00
Petr Machata
b72a6a7ab9 net: nexthop: Increase weight to u16 
In CLOS networks, as link failures occur at various points in the network,
ECMP weights of the involved nodes are adjusted to compensate. With high
fan-out of the involved nodes, and overall high number of nodes,
a (non-)ECMP weight ratio that we would like to configure does not fit into
8 bits. Instead of, say, 255:254, we might like to configure something like
1000:999. For these deployments, the 8-bit weight may not be enough.

To that end, in this patch increase the next hop weight from u8 to u16.

Increasing the width of an integral type can be tricky, because while the
code still compiles, the types may not check out anymore, and numerical
errors come up. To prevent this, the conversion was done in two steps.
First the type was changed from u8 to a single-member structure, which
invalidated all uses of the field. This allowed going through them one by
one and audit for type correctness. Then the structure was replaced with a
vanilla u16 again. This should ensure that no place was missed.

The UAPI for configuring nexthop group members is that an attribute
NHA_GROUP carries an array of struct nexthop_grp entries:

	struct nexthop_grp {
		__u32	id;	  /* nexthop id - must exist */
		__u8	weight;   /* weight of this nexthop */
		__u8	resvd1;
		__u16	resvd2;
	};

The field resvd1 is currently validated and required to be zero. We can
lift this requirement and carry high-order bits of the weight in the
reserved field:

	struct nexthop_grp {
		__u32	id;	  /* nexthop id - must exist */
		__u8	weight;   /* weight of this nexthop */
		__u8	weight_high;
		__u16	resvd2;
	};

Keeping the fields split this way was chosen in case an existing userspace
makes assumptions about the width of the weight field, and to sidestep any
endianness issues.

The weight field is currently encoded as the weight value minus one,
because weight of 0 is invalid. This same trick is impossible for the new
weight_high field, because zero must mean actual zero. With this in place:

- Old userspace is guaranteed to carry weight_high of 0, therefore
  configuring 8-bit weights as appropriate. When dumping nexthops with
  16-bit weight, it would only show the lower 8 bits. But configuring such
  nexthops implies existence of userspace aware of the extension in the
  first place.

- New userspace talking to an old kernel will work as long as it only
  attempts to configure 8-bit weights, where the high-order bits are zero.
  Old kernel will bounce attempts at configuring >8-bit weights.

Renaming reserved fields as they are allocated for some purpose is commonly
done in Linux. Whoever touches a reserved field is doing so at their own
risk. nexthop_grp::resvd1 in particular is currently used by at least
strace, however they carry an own copy of UAPI headers, and the conversion
should be trivial. A helper is provided for decoding the weight out of the
two fields. Forcing a conversion seems preferable to bending backwards and
introducing anonymous unions or whatever.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/483e2fcf4beb0d9135d62e7d27b46fa2685479d4.1723036486.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-12 17:50:34 -07:00
Petr Machata
75bab45e6b net: nexthop: Add flag to assert that NHGRP reserved fields are zero 
There are many unpatched kernel versions out there that do not initialize
the reserved fields of struct nexthop_grp. The issue with that is that if
those fields were to be used for some end (i.e. stop being reserved), old
kernels would still keep sending random data through the field, and a new
userspace could not rely on the value.

In this patch, use the existing NHA_OP_FLAGS, which is currently inbound
only, to carry flags back to the userspace. Add a flag to indicate that the
reserved fields in struct nexthop_grp are zeroed before dumping. This is
reliant on the actual fix from commit 6d745cd0e9 ("net: nexthop:
Initialize all fields in dumped nexthops").

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/21037748d4f9d8ff486151f4c09083bcf12d5df8.1723036486.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-08-12 17:50:34 -07:00
Christian Brauner
42b0f8da3a
nsfs: fix ioctl declaration 
The kernel is writing an object of type __u64, so the ioctl has to be
defined to _IOR(NSIO, 0x5, __u64) instead of _IO(NSIO, 0x5).

Reported-by: Dmitry V. Levin <ldv@strace.io>
Link: https://lore.kernel.org/r/20240730164554.GA18486@altlinux.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
 2024-08-12 22:03:26 +02:00
Greg Kroah-Hartman
9ca12e50a4 Merge 6.11-rc3 into char-misc-next 
We need the char/misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-08-12 18:44:54 +02:00
Jakub Kicinski
3d50c66c06 ethtool: rss: support skipping contexts during dump 
Applications may want to deal with dynamic RSS contexts only.
So dumping context 0 will be counter-productive for them.
Support starting the dump from a given context ID.

Alternative would be to implement a dump flag to skip just
context 0, not sure which is better...

Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2024-08-12 14:16:24 +01:00
Thomas Zimmermann
5c61f59824 Merge drm/drm-next into drm-misc-next 
Get drm-misc-next to the state of v6.11-rc2.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
 2024-08-12 14:14:18 +02:00
Jacopo Mondi
1fc379f624 media: uapi: videodev2: Add V4L2_META_FMT_RK_ISP1_EXT_PARAMS 
The rkisp1 driver stores ISP configuration parameters in the fixed
rkisp1_params_cfg structure. As the members of the structure are part of
the userspace API, the structure layout is immutable and cannot be
extended further. Introducing new parameters or modifying the existing
ones would change the buffer layout and cause breakages in existing
applications.

The allow for future extensions to the ISP parameters, introduce a new
extensible parameters format, with a new format 4CC. Document usage of
the new format in the rkisp1 admin guide.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 2024-08-12 13:36:32 +03:00
Jacopo Mondi
e9d05e9d5d media: uapi: rkisp1-config: Add extensible params format 
Add to the rkisp1-config.h header data types and documentation of
the extensible parameters format.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 2024-08-12 13:36:29 +03:00
Mohammed Anees
0dc4fb69eb drm: Add missing documentation for struct drm_plane_size_hint 
This patch takes care of the following warnings during documentation
compiling:

./include/uapi/drm/drm_mode.h:869: warning: Function parameter or struct member 'width' not described in 'drm_plane_size_hint'
./include/uapi/drm/drm_mode.h:869: warning: Function parameter or struct member 'height' not described in 'drm_plane_size_hint'

Signed-off-by: Mohammed Anees <pvmohammedanees2003@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240811101653.170223-1-pvmohammedanees2003@gmail.com
 2024-08-12 11:15:14 +02:00
Yishai Hadas
ec7ad65309 RDMA/mlx5: Introduce GET_DATA_DIRECT_SYSFS_PATH ioctl 
Introduce the 'GET_DATA_DIRECT_SYSFS_PATH' ioctl to return the sysfs
path of the affiliated 'data direct' device for a given device.

Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://patch.msgid.link/403745463e0ef52adbef681ff09aa6a29a756352.1722512548.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2024-08-11 11:12:50 +03:00
Yishai Hadas
de8f847a51 RDMA/mlx5: Add support for DMABUF MR registrations with Data-direct 
Add support for DMABUF MR registrations with Data-direct device.

Upon userspace calling to register a DMABUF MR with the data direct bit
set, the below algorithm will be followed.

1) Obtain a pinned DMABUF umem from the IB core using the user input
parameters (FD, offset, length) and the DMA PF device.  The DMA PF
device is needed to allow the IOMMU to enable the DMA PF to access the
user buffer over PCI.

2) Create a KSM MKEY by setting its entries according to the user buffer
VA to IOVA mapping, with the MKEY being the data direct device-crossed
MKEY. This KSM MKEY is umrable and will be used as part of the MR cache.
The PD for creating it is the internal device 'data direct' kernel one.

3) Create a crossing MKEY that points to the KSM MKEY using the crossing
access mode.

4) Manage the KSM MKEY by adding it to a list of 'data direct' MKEYs
managed on the mlx5_ib device.

5) Return the crossing MKEY to the user, created with its supplied PD.

Upon DMA PF unbind flow, the driver will revoke the KSM entries.
The final deregistration will occur under the hood once the application
deregisters its MKEY.

Notes:
- This version supports only the PINNED UMEM mode, so there is no
  dependency on ODP.
- The IOVA supplied by the application must be system page aligned due to
  HW translations of KSM.
- The crossing MKEY will not be umrable or part of the MR cache, as we
  cannot change its crossed (i.e. KSM) MKEY over UMR.

Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://patch.msgid.link/1f99d8020ed540d9702b9e2252a145a439609ba6.1722512548.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2024-08-11 11:12:50 +03:00
Takashi Iwai
4004f3029e Merge branch 'topic/control-lookup-rwlock' into for-next 
Pull control lookup optimization changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
 2024-08-09 14:25:24 +02:00
Christian Brauner
49224a345c
Merge patch series "nsfs: iterate through mount namespaces" 
Christian Brauner <brauner@kernel.org> says:

Recently, we added the ability to list mounts in other mount namespaces
and the ability to retrieve namespace file descriptors without having to
go through procfs by deriving them from pidfds.

This extends nsfs in two ways:

(1) Add the ability to retrieve information about a mount namespace via
    NS_MNT_GET_INFO. This will return the mount namespace id and the
    number of mounts currently in the mount namespace. The number of
    mounts can be used to size the buffer that needs to be used for
    listmount() and is in general useful without having to actually
    iterate through all the mounts.

    The structure is extensible.

(2) Add the ability to iterate through all mount namespaces over which
    the caller holds privilege returning the file descriptor for the
    next or previous mount namespace.

    To retrieve a mount namespace the caller must be privileged wrt to
    it's owning user namespace. This means that PID 1 on the host can
    list all mounts in all mount namespaces or that a container can list
    all mounts of its nested containers.

    Optionally pass a structure for NS_MNT_GET_INFO with
    NS_MNT_GET_{PREV,NEXT} to retrieve information about the mount
    namespace in one go.

(1) and (2) can be implemented for other namespace types easily.

Together with recent api additions this means one can iterate through
all mounts in all mount namespaces without ever touching procfs. Here's
a sample program list_all_mounts_everywhere.c:

  // SPDX-License-Identifier: GPL-2.0-or-later

  #define _GNU_SOURCE
  #include <asm/unistd.h>
  #include <assert.h>
  #include <errno.h>
  #include <fcntl.h>
  #include <getopt.h>
  #include <linux/stat.h>
  #include <sched.h>
  #include <stddef.h>
  #include <stdint.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <sys/ioctl.h>
  #include <sys/param.h>
  #include <sys/pidfd.h>
  #include <sys/stat.h>
  #include <sys/statfs.h>

  #define die_errno(format, ...)                                             \
  	do {                                                               \
  		fprintf(stderr, "%m | %s: %d: %s: " format "\n", __FILE__, \
  			__LINE__, __func__, ##__VA_ARGS__);                \
  		exit(EXIT_FAILURE);                                        \
  	} while (0)

  /* Get the id for a mount namespace */
  #define NS_GET_MNTNS_ID		_IO(0xb7, 0x5)
  /* Get next mount namespace. */

  struct mnt_ns_info {
  	__u32 size;
  	__u32 nr_mounts;
  	__u64 mnt_ns_id;
  };

  #define MNT_NS_INFO_SIZE_VER0 16 /* size of first published struct */

  /* Get information about namespace. */
  #define NS_MNT_GET_INFO		_IOR(0xb7, 10, struct mnt_ns_info)
  /* Get next namespace. */
  #define NS_MNT_GET_NEXT		_IOR(0xb7, 11, struct mnt_ns_info)
  /* Get previous namespace. */
  #define NS_MNT_GET_PREV		_IOR(0xb7, 12, struct mnt_ns_info)

  #define PIDFD_GET_MNT_NAMESPACE _IO(0xFF, 3)

  #define STATX_MNT_ID_UNIQUE	0x00004000U	/* Want/got extended stx_mount_id */

  #define __NR_listmount 458
  #define __NR_statmount 457

  /*
   * @mask bits for statmount(2)
   */
  #define STATMOUNT_SB_BASIC		0x00000001U     /* Want/got sb_... */
  #define STATMOUNT_MNT_BASIC		0x00000002U	/* Want/got mnt_... */
  #define STATMOUNT_PROPAGATE_FROM	0x00000004U	/* Want/got propagate_from */
  #define STATMOUNT_MNT_ROOT		0x00000008U	/* Want/got mnt_root  */
  #define STATMOUNT_MNT_POINT		0x00000010U	/* Want/got mnt_point */
  #define STATMOUNT_FS_TYPE		0x00000020U	/* Want/got fs_type */
  #define STATMOUNT_MNT_NS_ID             0x00000040U     /* Want/got mnt_ns_id */
  #define STATMOUNT_MNT_OPTS              0x00000080U     /* Want/got mnt_opts */

  struct statmount {
  	__u32 size;		/* Total size, including strings */
  	__u32 mnt_opts;
  	__u64 mask;		/* What results were written */
  	__u32 sb_dev_major;	/* Device ID */
  	__u32 sb_dev_minor;
  	__u64 sb_magic;		/* ..._SUPER_MAGIC */
  	__u32 sb_flags;		/* SB_{RDONLY,SYNCHRONOUS,DIRSYNC,LAZYTIME} */
  	__u32 fs_type;		/* [str] Filesystem type */
  	__u64 mnt_id;		/* Unique ID of mount */
  	__u64 mnt_parent_id;	/* Unique ID of parent (for root == mnt_id) */
  	__u32 mnt_id_old;	/* Reused IDs used in proc/.../mountinfo */
  	__u32 mnt_parent_id_old;
  	__u64 mnt_attr;		/* MOUNT_ATTR_... */
  	__u64 mnt_propagation;	/* MS_{SHARED,SLAVE,PRIVATE,UNBINDABLE} */
  	__u64 mnt_peer_group;	/* ID of shared peer group */
  	__u64 mnt_master;	/* Mount receives propagation from this ID */
  	__u64 propagate_from;	/* Propagation from in current namespace */
  	__u32 mnt_root;		/* [str] Root of mount relative to root of fs */
  	__u32 mnt_point;	/* [str] Mountpoint relative to current root */
  	__u64 mnt_ns_id;
  	__u64 __spare2[49];
  	char str[];		/* Variable size part containing strings */
  };

  struct mnt_id_req {
  	__u32 size;
  	__u32 spare;
  	__u64 mnt_id;
  	__u64 param;
  	__u64 mnt_ns_id;
  };

  #define MNT_ID_REQ_SIZE_VER1	32 /* sizeof second published struct */

  #define LSMT_ROOT		0xffffffffffffffff	/* root mount */

  static int __statmount(__u64 mnt_id, __u64 mnt_ns_id, __u64 mask,
  		       struct statmount *stmnt, size_t bufsize, unsigned int flags)
  {
  	struct mnt_id_req req = {
  		.size = MNT_ID_REQ_SIZE_VER1,
  		.mnt_id = mnt_id,
  		.param = mask,
  		.mnt_ns_id = mnt_ns_id,
  	};

  	return syscall(__NR_statmount, &req, stmnt, bufsize, flags);
  }

  static struct statmount *sys_statmount(__u64 mnt_id, __u64 mnt_ns_id,
  				       __u64 mask, unsigned int flags)
  {
  	size_t bufsize = 1 << 15;
  	struct statmount *stmnt = NULL, *tmp = NULL;
  	int ret;

  	for (;;) {
  		tmp = realloc(stmnt, bufsize);
  		if (!tmp)
  			goto out;

  		stmnt = tmp;
  		ret = __statmount(mnt_id, mnt_ns_id, mask, stmnt, bufsize, flags);
  		if (!ret)
  			return stmnt;

  		if (errno != EOVERFLOW)
  			goto out;

  		bufsize <<= 1;
  		if (bufsize >= UINT_MAX / 2)
  			goto out;

  	}

  out:
  	free(stmnt);
  	printf("statmount failed");
  	return NULL;
  }

  static ssize_t sys_listmount(__u64 mnt_id, __u64 last_mnt_id, __u64 mnt_ns_id,
  			     __u64 list[], size_t num, unsigned int flags)
  {
  	struct mnt_id_req req = {
  		.size = MNT_ID_REQ_SIZE_VER1,
  		.mnt_id = mnt_id,
  		.param = last_mnt_id,
  		.mnt_ns_id = mnt_ns_id,
  	};

  	return syscall(__NR_listmount, &req, list, num, flags);
  }

  int main(int argc, char *argv[])
  {
  #define LISTMNT_BUFFER 10
  	__u64 list[LISTMNT_BUFFER], last_mnt_id = 0;
  	int ret, pidfd, fd_mntns;
  	struct mnt_ns_info info = {};

  	pidfd = pidfd_open(getpid(), 0);
  	if (pidfd < 0)
  		die_errno("pidfd_open failed");

  	fd_mntns = ioctl(pidfd, PIDFD_GET_MNT_NAMESPACE, 0);
  	if (fd_mntns < 0)
  		die_errno("ioctl(PIDFD_GET_MNT_NAMESPACE) failed");

  	ret = ioctl(fd_mntns, NS_MNT_GET_INFO, &info);
  	if (ret < 0)
  		die_errno("ioctl(NS_GET_MNTNS_ID) failed");

  	printf("Listing %u mounts for mount namespace %d:%llu\n", info.nr_mounts, fd_mntns, info.mnt_ns_id);
  	for (;;) {
  		ssize_t nr_mounts;
  	next:
  		nr_mounts = sys_listmount(LSMT_ROOT, last_mnt_id, info.mnt_ns_id, list, LISTMNT_BUFFER, 0);
  		if (nr_mounts <= 0) {
  			printf("Finished listing mounts for mount namespace %d:%llu\n\n", fd_mntns, info.mnt_ns_id);
  			ret = ioctl(fd_mntns, NS_MNT_GET_NEXT, 0);
  			if (ret < 0)
  				die_errno("ioctl(NS_MNT_GET_NEXT) failed");
  			close(ret);
  			ret = ioctl(fd_mntns, NS_MNT_GET_NEXT, &info);
  			if (ret < 0) {
  				if (errno == ENOENT) {
  					printf("Finished listing all mount namespaces\n");
  					exit(0);
  				}
  				die_errno("ioctl(NS_MNT_GET_NEXT) failed");
  			}
  			close(fd_mntns);
  			fd_mntns = ret;
  			last_mnt_id = 0;
  			printf("Listing %u mounts for mount namespace %d:%llu\n", info.nr_mounts, fd_mntns, info.mnt_ns_id);
  			goto next;
  		}

  		for (size_t cur = 0; cur < nr_mounts; cur++) {
  			struct statmount *stmnt;

  			last_mnt_id = list[cur];

  			stmnt = sys_statmount(last_mnt_id, info.mnt_ns_id,
  					      STATMOUNT_SB_BASIC |
  					      STATMOUNT_MNT_BASIC |
  					      STATMOUNT_MNT_ROOT |
  					      STATMOUNT_MNT_POINT |
  					      STATMOUNT_MNT_NS_ID |
  					      STATMOUNT_MNT_OPTS |
  					      STATMOUNT_FS_TYPE,
  					  0);
  			if (!stmnt) {
  				printf("Failed to statmount(%llu) in mount namespace(%llu)\n", last_mnt_id, info.mnt_ns_id);
  				continue;
  			}

  			printf("mnt_id(%u/%llu) | mnt_parent_id(%u/%llu): %s @ %s ==> %s with options: %s\n",
  			       stmnt->mnt_id_old, stmnt->mnt_id,
  			       stmnt->mnt_parent_id_old, stmnt->mnt_parent_id,
  			       stmnt->str + stmnt->fs_type,
  			       stmnt->str + stmnt->mnt_root,
  			       stmnt->str + stmnt->mnt_point,
  			       stmnt->str + stmnt->mnt_opts);
  			free(stmnt);
  		}
  	}

  	exit(0);
  }

* patches from https://lore.kernel.org/r/20240719-work-mount-namespace-v1-0-834113cab0d2@kernel.org:
  nsfs: iterate through mount namespaces
  file: add fput() cleanup helper
  fs: add put_mnt_ns() cleanup helper
  fs: allow mount namespace fd

Signed-off-by: Christian Brauner <brauner@kernel.org>
 2024-08-09 12:47:05 +02:00
Christian Brauner
a1d220d9da
nsfs: iterate through mount namespaces 
It is already possible to list mounts in other mount namespaces and to
retrieve namespace file descriptors without having to go through procfs
by deriving them from pidfds.

Augment these abilities by adding the ability to retrieve information
about a mount namespace via NS_MNT_GET_INFO. This will return the mount
namespace id and the number of mounts currently in the mount namespace.
The number of mounts can be used to size the buffer that needs to be
used for listmount() and is in general useful without having to actually
iterate through all the mounts. The structure is extensible.

And add the ability to iterate through all mount namespaces over which
the caller holds privilege returning the file descriptor for the next or
previous mount namespace.

To retrieve a mount namespace the caller must be privileged wrt to it's
owning user namespace. This means that PID 1 on the host can list all
mounts in all mount namespaces or that a container can list all mounts
of its nested containers.

Optionally pass a structure for NS_MNT_GET_INFO with
NS_MNT_GET_{PREV,NEXT} to retrieve information about the mount namespace
in one go. Both ioctls can be implemented for other namespace types
easily.

Together with recent api additions this means one can iterate through
all mounts in all mount namespaces without ever touching procfs.

Link: https://lore.kernel.org/r/20240719-work-mount-namespace-v1-5-834113cab0d2@kernel.org
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
 2024-08-09 12:46:59 +02:00
Daniel Vetter
4e996697a4 drm-misc-next for v6.12: 
UAPI Changes:
 
 - remove Power Saving Policy property
 
 Core Changes:
 
 - update connector documentation
 
 CI:
 - add tests for mediatek, meson, rockchip
 
 Driver Changes:
 
 amdgpu:
 - revert support for Power Saving Policy property
 
 bridge:
 - lt9611uxc: require DRM_BRIDGE_ATTACH_NO_CONNECTOR
 
 mgag200:
 - transparently support BMC outputs
 
 omapdrm:
 - use common helper for_each_endpoint_of_node()
 
 panel:
 - panel-edp: fix name for HKC MB116AN01
 
 vkms:
 - clean up endianess warnings
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Merge tag 'drm-misc-next-2024-08-09' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.12:

UAPI Changes:

- remove Power Saving Policy property

Core Changes:

- update connector documentation

CI:
- add tests for mediatek, meson, rockchip

Driver Changes:

amdgpu:
- revert support for Power Saving Policy property

bridge:
- lt9611uxc: require DRM_BRIDGE_ATTACH_NO_CONNECTOR

mgag200:
- transparently support BMC outputs

omapdrm:
- use common helper for_each_endpoint_of_node()

panel:
- panel-edp: fix name for HKC MB116AN01

vkms:
- clean up endianess warnings

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240809071241.GA222501@localhost.localdomain
 2024-08-09 10:41:59 +02:00
Alan Maguire
3882dccf48 bpf/bpf_get,set_sockopt: add option to set TCP-BPF sock ops flags 
Currently the only opportunity to set sock ops flags dictating
which callbacks fire for a socket is from within a TCP-BPF sockops
program.  This is problematic if the connection is already set up
as there is no further chance to specify callbacks for that socket.
Add TCP_BPF_SOCK_OPS_CB_FLAGS to bpf_setsockopt() and bpf_getsockopt()
to allow users to specify callbacks later, either via an iterator
over sockets or via a socket-specific program triggered by a
setsockopt() on the socket.

Previous discussion on this here [1].

[1] https://lore.kernel.org/bpf/f42f157b-6e52-dd4d-3d97-9b86c84c0b00@oracle.com/

Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/r/20240808150558.1035626-2-alan.maguire@oracle.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
 2024-08-08 16:52:43 -07:00
Daniel Vetter
91dae758bd drm-misc-next for v6.12: 
UAPI Changes:
 
 virtio:
 - Define DRM capset
 
 Cross-subsystem Changes:
 
 dma-buf:
 - heaps: Clean up documentation
 
 printk:
 - Pass description to kmsg_dump()
 
 Core Changes:
 
 CI:
 - Update IGT tests
 - Point upstream repo to GitLab instance
 
 modesetting:
 - Introduce Power Saving Policy property for connectors
 - Add might_fault() to drm_modeset_lock priming
 - Add dynamic per-crtc vblank configuration support
 
 panic:
 - Avoid build-time interference with framebuffer console
 
 docs:
 - Document Colorspace property
 
 scheduler:
 - Remove full_recover from drm_sched_start
 
 TTM:
 - Make LRU walk restartable after dropping locks
 - Allow direct reclaim to allocate local memory
 
 Driver Changes:
 
 amdgpu:
 - Support Power Saving Policy connector property
 
 ast:
 - astdp: Support AST2600 with VGA; Clean up HPD
 
 bridge:
 - Silence error message on -EPROBE_DEFER
 - analogix: Clean aup
 - bridge-connector: Fix double free
 - lt6505: Disable interrupt when powered off
 - tc358767: Make default DP port preemphasis configurable
 
 gma500:
 - Update i2c terminology
 
 ivpu:
 - Add MODULE_FIRMWARE()
 
 lcdif:
 - Fix pixel clock
 
 loongson:
 - Use GEM refcount over TTM's
 
 mgag200:
 - Improve BMC handling
 - Support VBLANK intterupts
 
 nouveau:
 - Refactor and clean up internals
 - Use GEM refcount over TTM's
 
 panel:
 - Shutdown fixes plus documentation
 - Refactor several drivers for better code sharing
 - boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel plus
   DT; Fix porch parameter
 - edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1,
   BOE NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
   CMN N116BCP-EA2, CSW MNB601LS1-4
 - himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
 - ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
 - jd9365da: Support Melfas lmfbx101117480 MIPI-DSI panel plus DT; Refactor
   for code sharing
 
 sti:
 - Fix module owner
 
 stm:
 - Avoid UAF wih managed plane and CRTC helpers
 - Fix module owner
 - Fix error handling in probe
 - Depend on COMMON_CLK
 - ltdc: Fix transparency after disabling plane; Remove unused interrupt
 
 tegra:
 - Call drm_atomic_helper_shutdown()
 
 v3d:
 - Clean up perfmon
 
 vkms:
 - Clean up
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Merge tag 'drm-misc-next-2024-08-01' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.12:

UAPI Changes:

virtio:
- Define DRM capset

Cross-subsystem Changes:

dma-buf:
- heaps: Clean up documentation

printk:
- Pass description to kmsg_dump()

Core Changes:

CI:
- Update IGT tests
- Point upstream repo to GitLab instance

modesetting:
- Introduce Power Saving Policy property for connectors
- Add might_fault() to drm_modeset_lock priming
- Add dynamic per-crtc vblank configuration support

panic:
- Avoid build-time interference with framebuffer console

docs:
- Document Colorspace property

scheduler:
- Remove full_recover from drm_sched_start

TTM:
- Make LRU walk restartable after dropping locks
- Allow direct reclaim to allocate local memory

Driver Changes:

amdgpu:
- Support Power Saving Policy connector property

ast:
- astdp: Support AST2600 with VGA; Clean up HPD

bridge:
- Silence error message on -EPROBE_DEFER
- analogix: Clean aup
- bridge-connector: Fix double free
- lt6505: Disable interrupt when powered off
- tc358767: Make default DP port preemphasis configurable

gma500:
- Update i2c terminology

ivpu:
- Add MODULE_FIRMWARE()

lcdif:
- Fix pixel clock

loongson:
- Use GEM refcount over TTM's

mgag200:
- Improve BMC handling
- Support VBLANK intterupts

nouveau:
- Refactor and clean up internals
- Use GEM refcount over TTM's

panel:
- Shutdown fixes plus documentation
- Refactor several drivers for better code sharing
- boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel plus
  DT; Fix porch parameter
- edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1,
  BOE NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
  CMN N116BCP-EA2, CSW MNB601LS1-4
- himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
- ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
- jd9365da: Support Melfas lmfbx101117480 MIPI-DSI panel plus DT; Refactor
  for code sharing

sti:
- Fix module owner

stm:
- Avoid UAF wih managed plane and CRTC helpers
- Fix module owner
- Fix error handling in probe
- Depend on COMMON_CLK
- ltdc: Fix transparency after disabling plane; Remove unused interrupt

tegra:
- Call drm_atomic_helper_shutdown()

v3d:
- Clean up perfmon

vkms:
- Clean up

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240801121406.GA102996@linux.fritz.box
 2024-08-08 18:58:46 +02:00
Hans Verkuil
599f689905 media: uapi/linux/cec.h: cec_msg_set_reply_to: zero flags 
The cec_msg_set_reply_to() helper function never zeroed the
struct cec_msg flags field, this can cause unexpected behavior
if flags was uninitialized to begin with.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 0dbacebede ("[media] cec: move the CEC framework out of staging and to media")
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
 2024-08-08 15:23:21 +02:00
Takashi Iwai
0079c9d1e5 ALSA: ump: Handle MIDI 1.0 Function Block in MIDI 2.0 protocol 
The UMP v1.1 spec says in the section 6.2.1:
"If a UMP Endpoint declares MIDI 2.0 Protocol but a Function Block
represents a MIDI 1.0 connection, then may optionally be used for
messages to/from that Function Block."

It implies that the driver can (and should) keep MIDI 1.0 CVM
exceptionally for those FBs even if UMP Endpoint is running in MIDI
2.0 protocol, and the current driver lacks of it.

This patch extends the sequencer port info to indicate a MIDI 1.0
port, and tries to send/receive MIDI 1.0 CVM as is when this port is
the source or sink.  The sequencer port flag is set by the driver at
parsing FBs and GTBs although application can set it to its own
user-space clients, too.

Link: https://patch.msgid.link/20240806070024.14301-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 2024-08-06 09:01:23 +02:00
Dave Airlie
a4172af304 drm-xe-next for 6.12 
UAPI Changes:
 - Rename xe perf layer as xe observation layer, but was
   also made available via fixes to previous verison (Ashutosh)
 - Use write-back caching mode for system memory on DGFX,
   but was also mad available via fixes to previous version (Thomas)
 - Expose SIMD16 EU mask in topology query for userspace to know
   the type of EU, as available in PVC, Lunar Lake and Battlemage
   (Lucas)
 - Return ENOBUFS instead of ENOMEM in vm_bind if failure is tied
   to an array of binds (Matthew Brost)
 
 Driver Changes:
 - Log cleanup moving messages to debug priority (Michal Wajdeczko)
 - Add timeout to fences to adhere to dma_buf rules (Matthew Brost)
 - Rename old engine nomenclature to exec_queue (Matthew Brost)
 - Convert multiple bind ops to 1 job (Matthew Brost)
 - Add error injection for vm bind to help testing error path
   (Matthew Brost)
 - Fix error handling in page table to propagate correctly
   to userspace (Matthew Brost)
 - Re-organize and cleanup SR-IOV related registers (Michal Wajdeczko)
 - Make the device write barrier compatible with VF (Michal Wajdeczko)
 - New display workarounds for Battlemage (Matthew  Auld)
 - New media workarounds for Lunar Lake and Battlemage (Ngai-Mint Kwan)
 - New graphics workarounds for Lunar Lake (Bommu Krishnaiah)
 - Tracepoint updates (Matthew Brost, Nirmoy Das)
 - Cleanup the header generation for OOB workarounds (Lucas De Marchi)
 - Fix leaking HDCP-related object (Nirmoy Das)
 - Serialize L2 flushes to avoid races (Tejas Upadhyay)
 - Log pid and comm on job timeout (José Roberto de Souza)
 - Simplify boilerplate code for live kunit (Michal Wajdeczko)
 - Improve kunit skips for live kunit (Michal Wajdeczko)
 - Fix xe_sync cleanup when handling xe_exec ioctl (Ashutosh Dixit)
 - Limit fair VF LMEM provisioning (Michal Wajdeczko)
 - New workaround to fence mmio writes in Lunar Lake (Tejas Upadhyay)
 - Warn on writes inaccessible register in VF (Michal Wajdeczko)
 - Fix register lookup in VF (Michal Wajdeczko)
 - Add GSC support for Battlemage (Alexander Usyskin)
 - Fix wedging only the GT in which timeout occurred (Matthew Brost)
 - Block device suspend when wedging (Matthew Brost)
 - Handle compression and migration changes for Battlemage
   (Akshata Jahagirdar)
 - Limit access of stolen memory for Lunar Lake (Uma Shankar)
 - Fail invalid addresses during user fence creation (Matthew Brost)
 - Refcount xe_file to safely and accurately store fdinfo stats
   (Umesh Nerlige Ramappa)
 - Cleanup and fix PM reference for TLB invalidation code
   (Matthew Brost)
 - Fix PM reference handling when communicating with GuC (Matthew Brost)
 - Add new BO flag for 2 MiB alignement and use in VF (Michal Wajdeczko)
 - Simplify MMIO setup for multi-tile platforms (Lucas De Marchi)
 - Add check for uninitialized access to OOB workarounds
   (Lucas De Marchi)
 - New GSC and HuC firmware blobs for Lunar Lake and Battlemage
   (Daniele Ceraolo Spurio)
 - Unify mmio wait logic (Gustavo Sousa)
 - Fix off-by-one when processing RTP rules (Lucas De Marchi)
 - Future-proof migrate logic with compressed PAT flag (Matt Roper)
 - Add WA kunit tests for Battlemage (Lucas De Marchi)
 - Test active tracking for workaorunds with kunit (Lucas De Marchi)
 - Add kunit tests for RTP with no actions (Lucas De Marchi)
 - Unify parse of OR rules in RTP (Lucas De Marchi)
 - Add performance tuning for Battlemage (Sai Teja Pottumuttu)
 - Make bit masks unsigned (Geert Uytterhoeven)
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Merge tag 'drm-xe-next-2024-07-30' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

drm-xe-next for 6.12

UAPI Changes:
- Rename xe perf layer as xe observation layer, but was
  also made available via fixes to previous verison (Ashutosh)
- Use write-back caching mode for system memory on DGFX,
  but was also mad available via fixes to previous version (Thomas)
- Expose SIMD16 EU mask in topology query for userspace to know
  the type of EU, as available in PVC, Lunar Lake and Battlemage
  (Lucas)
- Return ENOBUFS instead of ENOMEM in vm_bind if failure is tied
  to an array of binds (Matthew Brost)

Driver Changes:
- Log cleanup moving messages to debug priority (Michal Wajdeczko)
- Add timeout to fences to adhere to dma_buf rules (Matthew Brost)
- Rename old engine nomenclature to exec_queue (Matthew Brost)
- Convert multiple bind ops to 1 job (Matthew Brost)
- Add error injection for vm bind to help testing error path
  (Matthew Brost)
- Fix error handling in page table to propagate correctly
  to userspace (Matthew Brost)
- Re-organize and cleanup SR-IOV related registers (Michal Wajdeczko)
- Make the device write barrier compatible with VF (Michal Wajdeczko)
- New display workarounds for Battlemage (Matthew  Auld)
- New media workarounds for Lunar Lake and Battlemage (Ngai-Mint Kwan)
- New graphics workarounds for Lunar Lake (Bommu Krishnaiah)
- Tracepoint updates (Matthew Brost, Nirmoy Das)
- Cleanup the header generation for OOB workarounds (Lucas De Marchi)
- Fix leaking HDCP-related object (Nirmoy Das)
- Serialize L2 flushes to avoid races (Tejas Upadhyay)
- Log pid and comm on job timeout (José Roberto de Souza)
- Simplify boilerplate code for live kunit (Michal Wajdeczko)
- Improve kunit skips for live kunit (Michal Wajdeczko)
- Fix xe_sync cleanup when handling xe_exec ioctl (Ashutosh Dixit)
- Limit fair VF LMEM provisioning (Michal Wajdeczko)
- New workaround to fence mmio writes in Lunar Lake (Tejas Upadhyay)
- Warn on writes inaccessible register in VF (Michal Wajdeczko)
- Fix register lookup in VF (Michal Wajdeczko)
- Add GSC support for Battlemage (Alexander Usyskin)
- Fix wedging only the GT in which timeout occurred (Matthew Brost)
- Block device suspend when wedging (Matthew Brost)
- Handle compression and migration changes for Battlemage
  (Akshata Jahagirdar)
- Limit access of stolen memory for Lunar Lake (Uma Shankar)
- Fail invalid addresses during user fence creation (Matthew Brost)
- Refcount xe_file to safely and accurately store fdinfo stats
  (Umesh Nerlige Ramappa)
- Cleanup and fix PM reference for TLB invalidation code
  (Matthew Brost)
- Fix PM reference handling when communicating with GuC (Matthew Brost)
- Add new BO flag for 2 MiB alignement and use in VF (Michal Wajdeczko)
- Simplify MMIO setup for multi-tile platforms (Lucas De Marchi)
- Add check for uninitialized access to OOB workarounds
  (Lucas De Marchi)
- New GSC and HuC firmware blobs for Lunar Lake and Battlemage
  (Daniele Ceraolo Spurio)
- Unify mmio wait logic (Gustavo Sousa)
- Fix off-by-one when processing RTP rules (Lucas De Marchi)
- Future-proof migrate logic with compressed PAT flag (Matt Roper)
- Add WA kunit tests for Battlemage (Lucas De Marchi)
- Test active tracking for workaorunds with kunit (Lucas De Marchi)
- Add kunit tests for RTP with no actions (Lucas De Marchi)
- Unify parse of OR rules in RTP (Lucas De Marchi)
- Add performance tuning for Battlemage (Sai Teja Pottumuttu)
- Make bit masks unsigned (Geert Uytterhoeven)

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

From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/k7xuktfav4zmtxxjr77glu2hszypvzgmzghoumh757nqfnk7kn@ccfi4ts3ytbk
 2024-08-05 18:47:43 +10:00
Hans Verkuil
613f21505b media: cec: core: add new CEC_MSG_FL_REPLY_VENDOR_ID flag 
If this flag is set, then the reply is expected to consist of
the CEC_MSG_VENDOR_COMMAND_WITH_ID opcode followed by the Vendor ID (as
used in bytes 1-4 of the message), followed by the struct cec_msg reply
field.

Note that this assumes that the byte after the Vendor ID is a
vendor-specific opcode.

This flag makes it easier to wait for replies to vendor commands,
using the same CEC framework support for waiting for regular replies.

Support for this flag is indicated by setting the new
CEC_CAP_REPLY_VENDOR_ID capability.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
 2024-08-05 09:38:46 +02:00
Hamza Mahfooz
b6b242d019
Revert "drm: Introduce 'power saving policy' drm property" 
This reverts commit 76299a557f.

It was merged without meeting userspace requirements.

Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240802145946.48073-1-hamza.mahfooz@amd.com
 2024-08-02 11:28:53 -04:00
Arnd Bergmann
54233a4254 uretprobe: change syscall number, again 
Despite multiple attempts to get the syscall number assignment right
for the newly added uretprobe syscall, we ended up with a bit of a mess:

 - The number is defined as 467 based on the assumption that the
   xattrat family of syscalls would use 463 through 466, but those
   did not make it into 6.11.

 - The include/uapi/asm-generic/unistd.h file still lists the number
   463, but the new scripts/syscall.tbl that was supposed to have the
   same data lists 467 instead as the number for arc, arm64, csky,
   hexagon, loongarch, nios2, openrisc and riscv. None of these
   architectures actually provide a uretprobe syscall.

 - All the other architectures (powerpc, arm, mips, ...) don't list
   this syscall at all.

There are two ways to make it consistent again: either list it with
the same syscall number on all architectures, or only list it on x86
but not in scripts/syscall.tbl and asm-generic/unistd.h.

Based on the most recent discussion, it seems like we won't need it
anywhere else, so just remove the inconsistent assignment and instead
move the x86 number to the next available one in the architecture
specific range, which is 335.

Fixes: 5c28424e9a ("syscalls: Fix to add sys_uretprobe to syscall.tbl")
Fixes: 190fec72df ("uprobe: Wire up uretprobe system call")
Fixes: 63ded11097 ("uprobe: Change uretprobe syscall scope and number")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2024-08-02 15:18:49 +02:00
Yu-Ting Tseng
d579b04a52 binder: frozen notification 
Frozen processes present a significant challenge in binder transactions.
When a process is frozen, it cannot, by design, accept and/or respond to
binder transactions. As a result, the sender needs to adjust its
behavior, such as postponing transactions until the peer process
unfreezes. However, there is currently no way to subscribe to these
state change events, making it impossible to implement frozen-aware
behaviors efficiently.

Introduce a binder API for subscribing to frozen state change events.
This allows programs to react to changes in peer process state,
mitigating issues related to binder transactions sent to frozen
processes.

Implementation details:
For a given binder_ref, the state of frozen notification can be one of
the followings:
1. Userspace doesn't want a notification. binder_ref->freeze is null.
2. Userspace wants a notification but none is in flight.
   list_empty(&binder_ref->freeze->work.entry) = true
3. A notification is in flight and waiting to be read by userspace.
   binder_ref_freeze.sent is false.
4. A notification was read by userspace and kernel is waiting for an ack.
   binder_ref_freeze.sent is true.

When a notification is in flight, new state change events are coalesced into
the existing binder_ref_freeze struct. If userspace hasn't picked up the
notification yet, the driver simply rewrites the state. Otherwise, the
notification is flagged as requiring a resend, which will be performed
once userspace acks the original notification that's inflight.

See https://r.android.com/3070045 for how userspace is going to use this
feature.

Signed-off-by: Yu-Ting Tseng <yutingtseng@google.com>
Acked-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20240709070047.4055369-4-yutingtseng@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-07-31 13:56:00 +02:00
Geert Uytterhoeven
f2881dfdaa drm/xe/oa/uapi: Make bit masks unsigned 
When building with gcc-5:

    In function ‘decode_oa_format.isra.26’,
	inlined from ‘xe_oa_set_prop_oa_format’ at drivers/gpu/drm/xe/xe_oa.c:1664:6:
    ././include/linux/compiler_types.h:510:38: error: call to ‘__compiletime_assert_1336’ declared with attribute error: FIELD_GET: mask is not constant
    [...]
    ./include/linux/bitfield.h:155:3: note: in expansion of macro ‘__BF_FIELD_CHECK’
       __BF_FIELD_CHECK(_mask, _reg, 0U, "FIELD_GET: "); \
       ^
    drivers/gpu/drm/xe/xe_oa.c:1573:18: note: in expansion of macro ‘FIELD_GET’
      u32 bc_report = FIELD_GET(DRM_XE_OA_FORMAT_MASK_BC_REPORT, fmt);
		      ^

Fixes: b6fd51c621 ("drm/xe/oa/uapi: Define and parse OA stream properties")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240729092634.2227611-1-geert+renesas@glider.be
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
 2024-07-30 13:45:38 -07:00
Tejun Heo
c8faf11cd1 Linux 6.11-rc1 
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Merge tag 'v6.11-rc1' into for-6.12

Linux 6.11-rc1
 2024-07-30 09:30:11 -10:00
Vignesh Balasubramanian
ba386777a3 x86/elf: Add a new FPU buffer layout info to x86 core files 
Add a new .note section containing type, size, offset and flags of every
xfeature that is present.

This information will be used by debuggers to understand the XSAVE layout of
the machine where the core file has been dumped, and to read XSAVE registers,
especially during cross-platform debugging.

The XSAVE layouts of modern AMD and Intel CPUs differ, especially since
Memory Protection Keys and the AVX-512 features have been inculcated into
the AMD CPUs.

Since AMD never adopted (and hence never left room in the XSAVE layout for)
the Intel MPX feature, tools like GDB had assumed a fixed XSAVE layout
matching that of Intel (based on the XCR0 mask).

Hence, core dumps from AMD CPUs didn't match the known size for the XCR0 mask.
This resulted in GDB and other tools not being able to access the values of
the AVX-512 and PKRU registers on AMD CPUs.

To solve this, an interim solution has been accepted into GDB, and is already
a part of GDB 14, see

  https://sourceware.org/pipermail/gdb-patches/2023-March/198081.html.

But it depends on heuristics based on the total XSAVE register set size
and the XCR0 mask to infer the layouts of the various register blocks
for core dumps, and hence, is not a foolproof mechanism to determine the
layout of the XSAVE area.

Therefore, add a new core dump note in order to allow GDB/LLDB and other
relevant tools to determine the layout of the XSAVE area of the machine where
the corefile was dumped.

The new core dump note (which is being proposed as a per-process .note
section), NT_X86_XSAVE_LAYOUT (0x205) contains an array of structures.

Each structure describes an individual extended feature containing
offset, size and flags in this format:

  struct x86_xfeat_component {
         u32 type;
         u32 size;
         u32 offset;
         u32 flags;
  };

and in an independent manner, allowing for future extensions without depending
on hw arch specifics like CPUID etc.

  [ bp: Massage commit message, zap trailing whitespace. ]

Co-developed-by: Jini Susan George <jinisusan.george@amd.com>
Signed-off-by: Jini Susan George <jinisusan.george@amd.com>
Co-developed-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Vignesh Balasubramanian <vigbalas@amd.com>
Link: https://lore.kernel.org/r/20240725161017.112111-2-vigbalas@amd.com
 2024-07-29 10:45:43 +02:00
Thomas Zimmermann
0e8655b4e8 Merge drm/drm-next into drm-misc-next 
Backmerging to get a late RC of v6.10 before moving into v6.11.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
 2024-07-29 09:35:54 +02:00
Marcelo Schmitt
f58872f45c
spi: Enable controllers to extend the SPI protocol with MOSI idle configuration 
The behavior of an SPI controller data output line (SDO or MOSI or COPI
(Controller Output Peripheral Input) for disambiguation) is usually not
specified when the controller is not clocking out data on SCLK edges.
However, there do exist SPI peripherals that require specific MOSI line
state when data is not being clocked out of the controller.

Conventional SPI controllers may set the MOSI line on SCLK edges then bring
it low when no data is going out or leave the line the state of the last
transfer bit. More elaborated controllers are capable to set the MOSI idle
state according to different configurable levels and thus are more suitable
for interfacing with demanding peripherals.

Add SPI mode bits to allow peripherals to request explicit MOSI idle state
when needed.

When supporting a particular MOSI idle configuration, the data output line
state is expected to remain at the configured level when the controller is
not clocking out data. When a device that needs a specific MOSI idle state
is identified, its driver should request the MOSI idle configuration by
setting the proper SPI mode bit.

Acked-by: Nuno Sa <nuno.sa@analog.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Tested-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Link: https://patch.msgid.link/9802160b5e5baed7f83ee43ac819cb757a19be55.1720810545.git.marcelo.schmitt@analog.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-07-29 01:19:51 +01:00
Wouter Verhelst
7543ae2269 nbd: add support for rotational devices 
The NBD protocol defines the flag NBD_FLAG_ROTATIONAL to flag that the
export in use should be treated as a rotational device.

Add support for that flag to the kernel driver.

Signed-off-by: Wouter Verhelst <w@uter.be>
Reviewed-by: Eric Blake <eblake@redhat.com>
Link: https://lore.kernel.org/r/20240725164536.1275851-1-w@uter.be
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-07-28 16:47:52 -06:00
Jonathan Kim
e06b71b231 drm/amdkfd: allow users to target recommended SDMA engines 
Certain GPUs have better copy performance over xGMI on specific
SDMA engines depending on the source and destination GPU.
Allow users to create SDMA queues on these recommended engines.
Close to 2x overall performance has been observed with this
optimization.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2024-07-25 17:43:41 -04:00
Linus Torvalds
1722389b0d A lot of networking people were at a conference last week, busy 
catching COVID, so relatively short PR. Including fixes from bpf
 and netfilter.
 
 Current release - regressions:
 
  - tcp: process the 3rd ACK with sk_socket for TFO and MPTCP
 
 Current release - new code bugs:
 
  - l2tp: protect session IDR and tunnel session list with one lock,
    make sure the state is coherent to avoid a warning
 
  - eth: bnxt_en: update xdp_rxq_info in queue restart logic
 
  - eth: airoha: fix location of the MBI_RX_AGE_SEL_MASK field
 
 Previous releases - regressions:
 
  - xsk: require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len,
    the field reuses previously un-validated pad
 
 Previous releases - always broken:
 
  - tap/tun: drop short frames to prevent crashes later in the stack
 
  - eth: ice: add a per-VF limit on number of FDIR filters
 
  - af_unix: disable MSG_OOB handling for sockets in sockmap/sockhash
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf and netfilter.

  A lot of networking people were at a conference last week, busy
  catching COVID, so relatively short PR.

  Current release - regressions:

   - tcp: process the 3rd ACK with sk_socket for TFO and MPTCP

  Current release - new code bugs:

   - l2tp: protect session IDR and tunnel session list with one lock,
     make sure the state is coherent to avoid a warning

   - eth: bnxt_en: update xdp_rxq_info in queue restart logic

   - eth: airoha: fix location of the MBI_RX_AGE_SEL_MASK field

  Previous releases - regressions:

   - xsk: require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len,
     the field reuses previously un-validated pad

  Previous releases - always broken:

   - tap/tun: drop short frames to prevent crashes later in the stack

   - eth: ice: add a per-VF limit on number of FDIR filters

   - af_unix: disable MSG_OOB handling for sockets in sockmap/sockhash"

* tag 'net-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (34 commits)
  tun: add missing verification for short frame
  tap: add missing verification for short frame
  mISDN: Fix a use after free in hfcmulti_tx()
  gve: Fix an edge case for TSO skb validity check
  bnxt_en: update xdp_rxq_info in queue restart logic
  tcp: process the 3rd ACK with sk_socket for TFO/MPTCP
  selftests/bpf: Add XDP_UMEM_TX_METADATA_LEN to XSK TX metadata test
  xsk: Require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len
  bpf: Fix a segment issue when downgrading gso_size
  net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling
  MAINTAINERS: make Breno the netconsole maintainer
  MAINTAINERS: Update bonding entry
  net: nexthop: Initialize all fields in dumped nexthops
  net: stmmac: Correct byte order of perfect_match
  selftests: forwarding: skip if kernel not support setting bridge fdb learning limit
  tipc: Return non-zero value from tipc_udp_addr2str() on error
  netfilter: nft_set_pipapo_avx2: disable softinterrupts
  ice: Fix recipe read procedure
  ice: Add a per-VF limit on number of FDIR filters
  net: bonding: correctly annotate RCU in bond_should_notify_peers()
  ...
 2024-07-25 13:32:25 -07:00
Linus Torvalds
f9bcc61ad1 This pull request contains the following changes for UML: 
- Support for preemption
 - i386 Rust support
 - Huge cleanup by Benjamin Berg
 - UBSAN support
 - Removal of dead code
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Merge tag 'uml-for-linus-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux

Pull UML updates from Richard Weinberger:

 - Support for preemption

 - i386 Rust support

 - Huge cleanup by Benjamin Berg

 - UBSAN support

 - Removal of dead code

* tag 'uml-for-linus-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux: (41 commits)
  um: vector: always reset vp->opened
  um: vector: remove vp->lock
  um: register power-off handler
  um: line: always fill *error_out in setup_one_line()
  um: remove pcap driver from documentation
  um: Enable preemption in UML
  um: refactor TLB update handling
  um: simplify and consolidate TLB updates
  um: remove force_flush_all from fork_handler
  um: Do not flush MM in flush_thread
  um: Delay flushing syscalls until the thread is restarted
  um: remove copy_context_skas0
  um: remove LDT support
  um: compress memory related stub syscalls while adding them
  um: Rework syscall handling
  um: Add generic stub_syscall6 function
  um: Create signal stack memory assignment in stub_data
  um: Remove stub-data.h include from common-offsets.h
  um: time-travel: fix signal blocking race/hang
  um: time-travel: remove time_exit()
  ...
 2024-07-25 12:33:08 -07:00
Jakub Kicinski
f7578df913 bpf-for-netdev 
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Daniel Borkmann says:

====================
pull-request: bpf 2024-07-25

We've added 14 non-merge commits during the last 8 day(s) which contain
a total of 19 files changed, 177 insertions(+), 70 deletions(-).

The main changes are:

1) Fix af_unix to disable MSG_OOB handling for sockets in BPF sockmap and
   BPF sockhash. Also add test coverage for this case, from Michal Luczaj.

2) Fix a segmentation issue when downgrading gso_size in the BPF helper
   bpf_skb_adjust_room(), from Fred Li.

3) Fix a compiler warning in resolve_btfids due to a missing type cast,
   from Liwei Song.

4) Fix stack allocation for arm64 to align the stack pointer at a 16 byte
   boundary in the fexit_sleep BPF selftest, from Puranjay Mohan.

5) Fix a xsk regression to require a flag when actuating tx_metadata_len,
   from Stanislav Fomichev.

6) Fix function prototype BTF dumping in libbpf for prototypes that have
   no input arguments, from Andrii Nakryiko.

7) Fix stacktrace symbol resolution in perf script for BPF programs
   containing subprograms, from Hou Tao.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Add XDP_UMEM_TX_METADATA_LEN to XSK TX metadata test
  xsk: Require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len
  bpf: Fix a segment issue when downgrading gso_size
  tools/resolve_btfids: Fix comparison of distinct pointer types warning in resolve_btfids
  bpf, events: Use prog to emit ksymbol event for main program
  selftests/bpf: Test sockmap redirect for AF_UNIX MSG_OOB
  selftests/bpf: Parametrize AF_UNIX redir functions to accept send() flags
  selftests/bpf: Support SOCK_STREAM in unix_inet_redir_to_connected()
  af_unix: Disable MSG_OOB handling for sockets in sockmap/sockhash
  bpftool: Fix typo in usage help
  libbpf: Fix no-args func prototype BTF dumping syntax
  MAINTAINERS: Update powerpc BPF JIT maintainers
  MAINTAINERS: Update email address of Naveen
  selftests/bpf: fexit_sleep: Fix stack allocation for arm64
====================

Link: https://patch.msgid.link/20240725114312.32197-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-07-25 07:40:25 -07:00
Stanislav Fomichev
d5e726d914 xsk: Require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len 
Julian reports that commit 341ac980ea ("xsk: Support tx_metadata_len")
can break existing use cases which don't zero-initialize xdp_umem_reg
padding. Introduce new XDP_UMEM_TX_METADATA_LEN to make sure we
interpret the padding as tx_metadata_len only when being explicitly
asked.

Fixes: 341ac980ea ("xsk: Support tx_metadata_len")
Reported-by: Julian Schindel <mail@arctic-alpaca.de>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/bpf/20240713015253.121248-2-sdf@fomichev.me
 2024-07-25 11:57:27 +02:00
Dmitry Osipenko
7214da0ed2 drm/virtio: Add DRM capset definition 
Define DRM native context capset in the VirtIO-GPU protocol header.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240714205502.3409718-1-dmitry.osipenko@collabora.com
 2024-07-24 20:49:42 +03:00
Linus Torvalds
7a3fad30fd Random number generator updates for Linux 6.11-rc1. 
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Merge tag 'random-6.11-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random

Pull random number generator updates from Jason Donenfeld:
 "This adds getrandom() support to the vDSO.

  First, it adds a new kind of mapping to mmap(2), MAP_DROPPABLE, which
  lets the kernel zero out pages anytime under memory pressure, which
  enables allocating memory that never gets swapped to disk but also
  doesn't count as being mlocked.

  Then, the vDSO implementation of getrandom() is introduced in a
  generic manner and hooked into random.c.

  Next, this is implemented on x86. (Also, though it's not ready for
  this pull, somebody has begun an arm64 implementation already)

  Finally, two vDSO selftests are added.

  There are also two housekeeping cleanup commits"

* tag 'random-6.11-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  MAINTAINERS: add random.h headers to RNG subsection
  random: note that RNDGETPOOL was removed in 2.6.9-rc2
  selftests/vDSO: add tests for vgetrandom
  x86: vdso: Wire up getrandom() vDSO implementation
  random: introduce generic vDSO getrandom() implementation
  mm: add MAP_DROPPABLE for designating always lazily freeable mappings
 2024-07-24 10:29:50 -07:00
Linus Torvalds
fbc90c042c - 875fa64577da ("mm/hugetlb_vmemmap: fix race with speculative PFN 
walkers") is known to cause a performance regression
   (https://lore.kernel.org/all/3acefad9-96e5-4681-8014-827d6be71c7a@linux.ibm.com/T/#mfa809800a7862fb5bdf834c6f71a3a5113eb83ff).
   Yu has a fix which I'll send along later via the hotfixes branch.
 
 - In the series "mm: Avoid possible overflows in dirty throttling" Jan
   Kara addresses a couple of issues in the writeback throttling code.
   These fixes are also targetted at -stable kernels.
 
 - Ryusuke Konishi's series "nilfs2: fix potential issues related to
   reserved inodes" does that.  This should actually be in the
   mm-nonmm-stable tree, along with the many other nilfs2 patches.  My bad.
 
 - More folio conversions from Kefeng Wang in the series "mm: convert to
   folio_alloc_mpol()"
 
 - Kemeng Shi has sent some cleanups to the writeback code in the series
   "Add helper functions to remove repeated code and improve readability of
   cgroup writeback"
 
 - Kairui Song has made the swap code a little smaller and a little
   faster in the series "mm/swap: clean up and optimize swap cache index".
 
 - In the series "mm/memory: cleanly support zeropage in
   vm_insert_page*(), vm_map_pages*() and vmf_insert_mixed()" David
   Hildenbrand has reworked the rather sketchy handling of the use of the
   zeropage in MAP_SHARED mappings.  I don't see any runtime effects here -
   more a cleanup/understandability/maintainablity thing.
 
 - Dev Jain has improved selftests/mm/va_high_addr_switch.c's handling of
   higher addresses, for aarch64.  The (poorly named) series is
   "Restructure va_high_addr_switch".
 
 - The core TLB handling code gets some cleanups and possible slight
   optimizations in Bang Li's series "Add update_mmu_tlb_range() to
   simplify code".
 
 - Jane Chu has improved the handling of our
   fake-an-unrecoverable-memory-error testing feature MADV_HWPOISON in the
   series "Enhance soft hwpoison handling and injection".
 
 - Jeff Johnson has sent a billion patches everywhere to add
   MODULE_DESCRIPTION() to everything.  Some landed in this pull.
 
 - In the series "mm: cleanup MIGRATE_SYNC_NO_COPY mode", Kefeng Wang has
   simplified migration's use of hardware-offload memory copying.
 
 - Yosry Ahmed performs more folio API conversions in his series "mm:
   zswap: trivial folio conversions".
 
 - In the series "large folios swap-in: handle refault cases first",
   Chuanhua Han inches us forward in the handling of large pages in the
   swap code.  This is a cleanup and optimization, working toward the end
   objective of full support of large folio swapin/out.
 
 - In the series "mm,swap: cleanup VMA based swap readahead window
   calculation", Huang Ying has contributed some cleanups and a possible
   fixlet to his VMA based swap readahead code.
 
 - In the series "add mTHP support for anonymous shmem" Baolin Wang has
   taught anonymous shmem mappings to use multisize THP.  By default this
   is a no-op - users must opt in vis sysfs controls.  Dramatic
   improvements in pagefault latency are realized.
 
 - David Hildenbrand has some cleanups to our remaining use of
   page_mapcount() in the series "fs/proc: move page_mapcount() to
   fs/proc/internal.h".
 
 - David also has some highmem accounting cleanups in the series
   "mm/highmem: don't track highmem pages manually".
 
 - Build-time fixes and cleanups from John Hubbard in the series
   "cleanups, fixes, and progress towards avoiding "make headers"".
 
 - Cleanups and consolidation of the core pagemap handling from Barry
   Song in the series "mm: introduce pmd|pte_needs_soft_dirty_wp helpers
   and utilize them".
 
 - Lance Yang's series "Reclaim lazyfree THP without splitting" has
   reduced the latency of the reclaim of pmd-mapped THPs under fairly
   common circumstances.  A 10x speedup is seen in a microbenchmark.
 
   It does this by punting to aother CPU but I guess that's a win unless
   all CPUs are pegged.
 
 - hugetlb_cgroup cleanups from Xiu Jianfeng in the series
   "mm/hugetlb_cgroup: rework on cftypes".
 
 - Miaohe Lin's series "Some cleanups for memory-failure" does just that
   thing.
 
 - Is anyone reading this stuff?  If so, email me!
 
 - Someone other than SeongJae has developed a DAMON feature in Honggyu
   Kim's series "DAMON based tiered memory management for CXL memory".
   This adds DAMON features which may be used to help determine the
   efficiency of our placement of CXL/PCIe attached DRAM.
 
 - DAMON user API centralization and simplificatio work in SeongJae
   Park's series "mm/damon: introduce DAMON parameters online commit
   function".
 
 - In the series "mm: page_type, zsmalloc and page_mapcount_reset()"
   David Hildenbrand does some maintenance work on zsmalloc - partially
   modernizing its use of pageframe fields.
 
 - Kefeng Wang provides more folio conversions in the series "mm: remove
   page_maybe_dma_pinned() and page_mkclean()".
 
 - More cleanup from David Hildenbrand, this time in the series
   "mm/memory_hotplug: use PageOffline() instead of PageReserved() for
   !ZONE_DEVICE".  It "enlightens memory hotplug more about PageOffline()
   pages" and permits the removal of some virtio-mem hacks.
 
 - Barry Song's series "mm: clarify folio_add_new_anon_rmap() and
   __folio_add_anon_rmap()" is a cleanup to the anon folio handling in
   preparation for mTHP (multisize THP) swapin.
 
 - Kefeng Wang's series "mm: improve clear and copy user folio"
   implements more folio conversions, this time in the area of large folio
   userspace copying.
 
 - The series "Docs/mm/damon/maintaier-profile: document a mailing tool
   and community meetup series" tells people how to get better involved
   with other DAMON developers.  From SeongJae Park.
 
 - A large series ("kmsan: Enable on s390") from Ilya Leoshkevich does
   that.
 
 - David Hildenbrand sends along more cleanups, this time against the
   migration code.  The series is "mm/migrate: move NUMA hinting fault
   folio isolation + checks under PTL".
 
 - Jan Kara has found quite a lot of strangenesses and minor errors in
   the readahead code.  He addresses this in the series "mm: Fix various
   readahead quirks".
 
 - SeongJae Park's series "selftests/damon: test DAMOS tried regions and
   {min,max}_nr_regions" adds features and addresses errors in DAMON's self
   testing code.
 
 - Gavin Shan has found a userspace-triggerable WARN in the pagecache
   code.  The series "mm/filemap: Limit page cache size to that supported
   by xarray" addresses this.  The series is marked cc:stable.
 
 - Chengming Zhou's series "mm/ksm: cmp_and_merge_page() optimizations
   and cleanup" cleans up and slightly optimizes KSM.
 
 - Roman Gushchin has separated the memcg-v1 and memcg-v2 code - lots of
   code motion.  The series (which also makes the memcg-v1 code
   Kconfigurable) are
 
   "mm: memcg: separate legacy cgroup v1 code and put under config
   option" and
   "mm: memcg: put cgroup v1-specific memcg data under CONFIG_MEMCG_V1"
 
 - Dan Schatzberg's series "Add swappiness argument to memory.reclaim"
   adds an additional feature to this cgroup-v2 control file.
 
 - The series "Userspace controls soft-offline pages" from Jiaqi Yan
   permits userspace to stop the kernel's automatic treatment of excessive
   correctable memory errors.  In order to permit userspace to monitor and
   handle this situation.
 
 - Kefeng Wang's series "mm: migrate: support poison recover from migrate
   folio" teaches the kernel to appropriately handle migration from
   poisoned source folios rather than simply panicing.
 
 - SeongJae Park's series "Docs/damon: minor fixups and improvements"
   does those things.
 
 - In the series "mm/zsmalloc: change back to per-size_class lock"
   Chengming Zhou improves zsmalloc's scalability and memory utilization.
 
 - Vivek Kasireddy's series "mm/gup: Introduce memfd_pin_folios() for
   pinning memfd folios" makes the GUP code use FOLL_PIN rather than bare
   refcount increments.  So these paes can first be moved aside if they
   reside in the movable zone or a CMA block.
 
 - Andrii Nakryiko has added a binary ioctl()-based API to /proc/pid/maps
   for much faster reading of vma information.  The series is "query VMAs
   from /proc/<pid>/maps".
 
 - In the series "mm: introduce per-order mTHP split counters" Lance Yang
   improves the kernel's presentation of developer information related to
   multisize THP splitting.
 
 - Michael Ellerman has developed the series "Reimplement huge pages
   without hugepd on powerpc (8xx, e500, book3s/64)".  This permits
   userspace to use all available huge page sizes.
 
 - In the series "revert unconditional slab and page allocator fault
   injection calls" Vlastimil Babka removes a performance-affecting and not
   very useful feature from slab fault injection.
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Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - In the series "mm: Avoid possible overflows in dirty throttling" Jan
   Kara addresses a couple of issues in the writeback throttling code.
   These fixes are also targetted at -stable kernels.

 - Ryusuke Konishi's series "nilfs2: fix potential issues related to
   reserved inodes" does that. This should actually be in the
   mm-nonmm-stable tree, along with the many other nilfs2 patches. My
   bad.

 - More folio conversions from Kefeng Wang in the series "mm: convert to
   folio_alloc_mpol()"

 - Kemeng Shi has sent some cleanups to the writeback code in the series
   "Add helper functions to remove repeated code and improve readability
   of cgroup writeback"

 - Kairui Song has made the swap code a little smaller and a little
   faster in the series "mm/swap: clean up and optimize swap cache
   index".

 - In the series "mm/memory: cleanly support zeropage in
   vm_insert_page*(), vm_map_pages*() and vmf_insert_mixed()" David
   Hildenbrand has reworked the rather sketchy handling of the use of
   the zeropage in MAP_SHARED mappings. I don't see any runtime effects
   here - more a cleanup/understandability/maintainablity thing.

 - Dev Jain has improved selftests/mm/va_high_addr_switch.c's handling
   of higher addresses, for aarch64. The (poorly named) series is
   "Restructure va_high_addr_switch".

 - The core TLB handling code gets some cleanups and possible slight
   optimizations in Bang Li's series "Add update_mmu_tlb_range() to
   simplify code".

 - Jane Chu has improved the handling of our
   fake-an-unrecoverable-memory-error testing feature MADV_HWPOISON in
   the series "Enhance soft hwpoison handling and injection".

 - Jeff Johnson has sent a billion patches everywhere to add
   MODULE_DESCRIPTION() to everything. Some landed in this pull.

 - In the series "mm: cleanup MIGRATE_SYNC_NO_COPY mode", Kefeng Wang
   has simplified migration's use of hardware-offload memory copying.

 - Yosry Ahmed performs more folio API conversions in his series "mm:
   zswap: trivial folio conversions".

 - In the series "large folios swap-in: handle refault cases first",
   Chuanhua Han inches us forward in the handling of large pages in the
   swap code. This is a cleanup and optimization, working toward the end
   objective of full support of large folio swapin/out.

 - In the series "mm,swap: cleanup VMA based swap readahead window
   calculation", Huang Ying has contributed some cleanups and a possible
   fixlet to his VMA based swap readahead code.

 - In the series "add mTHP support for anonymous shmem" Baolin Wang has
   taught anonymous shmem mappings to use multisize THP. By default this
   is a no-op - users must opt in vis sysfs controls. Dramatic
   improvements in pagefault latency are realized.

 - David Hildenbrand has some cleanups to our remaining use of
   page_mapcount() in the series "fs/proc: move page_mapcount() to
   fs/proc/internal.h".

 - David also has some highmem accounting cleanups in the series
   "mm/highmem: don't track highmem pages manually".

 - Build-time fixes and cleanups from John Hubbard in the series
   "cleanups, fixes, and progress towards avoiding "make headers"".

 - Cleanups and consolidation of the core pagemap handling from Barry
   Song in the series "mm: introduce pmd|pte_needs_soft_dirty_wp helpers
   and utilize them".

 - Lance Yang's series "Reclaim lazyfree THP without splitting" has
   reduced the latency of the reclaim of pmd-mapped THPs under fairly
   common circumstances. A 10x speedup is seen in a microbenchmark.

   It does this by punting to aother CPU but I guess that's a win unless
   all CPUs are pegged.

 - hugetlb_cgroup cleanups from Xiu Jianfeng in the series
   "mm/hugetlb_cgroup: rework on cftypes".

 - Miaohe Lin's series "Some cleanups for memory-failure" does just that
   thing.

 - Someone other than SeongJae has developed a DAMON feature in Honggyu
   Kim's series "DAMON based tiered memory management for CXL memory".
   This adds DAMON features which may be used to help determine the
   efficiency of our placement of CXL/PCIe attached DRAM.

 - DAMON user API centralization and simplificatio work in SeongJae
   Park's series "mm/damon: introduce DAMON parameters online commit
   function".

 - In the series "mm: page_type, zsmalloc and page_mapcount_reset()"
   David Hildenbrand does some maintenance work on zsmalloc - partially
   modernizing its use of pageframe fields.

 - Kefeng Wang provides more folio conversions in the series "mm: remove
   page_maybe_dma_pinned() and page_mkclean()".

 - More cleanup from David Hildenbrand, this time in the series
   "mm/memory_hotplug: use PageOffline() instead of PageReserved() for
   !ZONE_DEVICE". It "enlightens memory hotplug more about PageOffline()
   pages" and permits the removal of some virtio-mem hacks.

 - Barry Song's series "mm: clarify folio_add_new_anon_rmap() and
   __folio_add_anon_rmap()" is a cleanup to the anon folio handling in
   preparation for mTHP (multisize THP) swapin.

 - Kefeng Wang's series "mm: improve clear and copy user folio"
   implements more folio conversions, this time in the area of large
   folio userspace copying.

 - The series "Docs/mm/damon/maintaier-profile: document a mailing tool
   and community meetup series" tells people how to get better involved
   with other DAMON developers. From SeongJae Park.

 - A large series ("kmsan: Enable on s390") from Ilya Leoshkevich does
   that.

 - David Hildenbrand sends along more cleanups, this time against the
   migration code. The series is "mm/migrate: move NUMA hinting fault
   folio isolation + checks under PTL".

 - Jan Kara has found quite a lot of strangenesses and minor errors in
   the readahead code. He addresses this in the series "mm: Fix various
   readahead quirks".

 - SeongJae Park's series "selftests/damon: test DAMOS tried regions and
   {min,max}_nr_regions" adds features and addresses errors in DAMON's
   self testing code.

 - Gavin Shan has found a userspace-triggerable WARN in the pagecache
   code. The series "mm/filemap: Limit page cache size to that supported
   by xarray" addresses this. The series is marked cc:stable.

 - Chengming Zhou's series "mm/ksm: cmp_and_merge_page() optimizations
   and cleanup" cleans up and slightly optimizes KSM.

 - Roman Gushchin has separated the memcg-v1 and memcg-v2 code - lots of
   code motion. The series (which also makes the memcg-v1 code
   Kconfigurable) are "mm: memcg: separate legacy cgroup v1 code and put
   under config option" and "mm: memcg: put cgroup v1-specific memcg
   data under CONFIG_MEMCG_V1"

 - Dan Schatzberg's series "Add swappiness argument to memory.reclaim"
   adds an additional feature to this cgroup-v2 control file.

 - The series "Userspace controls soft-offline pages" from Jiaqi Yan
   permits userspace to stop the kernel's automatic treatment of
   excessive correctable memory errors. In order to permit userspace to
   monitor and handle this situation.

 - Kefeng Wang's series "mm: migrate: support poison recover from
   migrate folio" teaches the kernel to appropriately handle migration
   from poisoned source folios rather than simply panicing.

 - SeongJae Park's series "Docs/damon: minor fixups and improvements"
   does those things.

 - In the series "mm/zsmalloc: change back to per-size_class lock"
   Chengming Zhou improves zsmalloc's scalability and memory
   utilization.

 - Vivek Kasireddy's series "mm/gup: Introduce memfd_pin_folios() for
   pinning memfd folios" makes the GUP code use FOLL_PIN rather than
   bare refcount increments. So these paes can first be moved aside if
   they reside in the movable zone or a CMA block.

 - Andrii Nakryiko has added a binary ioctl()-based API to
   /proc/pid/maps for much faster reading of vma information. The series
   is "query VMAs from /proc/<pid>/maps".

 - In the series "mm: introduce per-order mTHP split counters" Lance
   Yang improves the kernel's presentation of developer information
   related to multisize THP splitting.

 - Michael Ellerman has developed the series "Reimplement huge pages
   without hugepd on powerpc (8xx, e500, book3s/64)". This permits
   userspace to use all available huge page sizes.

 - In the series "revert unconditional slab and page allocator fault
   injection calls" Vlastimil Babka removes a performance-affecting and
   not very useful feature from slab fault injection.

* tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (411 commits)
  mm/mglru: fix ineffective protection calculation
  mm/zswap: fix a white space issue
  mm/hugetlb: fix kernel NULL pointer dereference when migrating hugetlb folio
  mm/hugetlb: fix possible recursive locking detected warning
  mm/gup: clear the LRU flag of a page before adding to LRU batch
  mm/numa_balancing: teach mpol_to_str about the balancing mode
  mm: memcg1: convert charge move flags to unsigned long long
  alloc_tag: fix page_ext_get/page_ext_put sequence during page splitting
  lib: reuse page_ext_data() to obtain codetag_ref
  lib: add missing newline character in the warning message
  mm/mglru: fix overshooting shrinker memory
  mm/mglru: fix div-by-zero in vmpressure_calc_level()
  mm/kmemleak: replace strncpy() with strscpy()
  mm, page_alloc: put should_fail_alloc_page() back behing CONFIG_FAIL_PAGE_ALLOC
  mm, slab: put should_failslab() back behind CONFIG_SHOULD_FAILSLAB
  mm: ignore data-race in __swap_writepage
  hugetlbfs: ensure generic_hugetlb_get_unmapped_area() returns higher address than mmap_min_addr
  mm: shmem: rename mTHP shmem counters
  mm: swap_state: use folio_alloc_mpol() in __read_swap_cache_async()
  mm/migrate: putback split folios when numa hint migration fails
  ...
 2024-07-21 17:15:46 -07:00
Linus Torvalds
2c9b351240 ARM: 
* Initial infrastructure for shadow stage-2 MMUs, as part of nested
   virtualization enablement
 
 * Support for userspace changes to the guest CTR_EL0 value, enabling
   (in part) migration of VMs between heterogenous hardware
 
 * Fixes + improvements to pKVM's FF-A proxy, adding support for v1.1 of
   the protocol
 
 * FPSIMD/SVE support for nested, including merged trap configuration
   and exception routing
 
 * New command-line parameter to control the WFx trap behavior under KVM
 
 * Introduce kCFI hardening in the EL2 hypervisor
 
 * Fixes + cleanups for handling presence/absence of FEAT_TCRX
 
 * Miscellaneous fixes + documentation updates
 
 LoongArch:
 
 * Add paravirt steal time support.
 
 * Add support for KVM_DIRTY_LOG_INITIALLY_SET.
 
 * Add perf kvm-stat support for loongarch.
 
 RISC-V:
 
 * Redirect AMO load/store access fault traps to guest
 
 * perf kvm stat support
 
 * Use guest files for IMSIC virtualization, when available
 
 ONE_REG support for the Zimop, Zcmop, Zca, Zcf, Zcd, Zcb and Zawrs ISA
 extensions is coming through the RISC-V tree.
 
 s390:
 
 * Assortment of tiny fixes which are not time critical
 
 x86:
 
 * Fixes for Xen emulation.
 
 * Add a global struct to consolidate tracking of host values, e.g. EFER
 
 * Add KVM_CAP_X86_APIC_BUS_CYCLES_NS to allow configuring the effective APIC
   bus frequency, because TDX.
 
 * Print the name of the APICv/AVIC inhibits in the relevant tracepoint.
 
 * Clean up KVM's handling of vendor specific emulation to consistently act on
   "compatible with Intel/AMD", versus checking for a specific vendor.
 
 * Drop MTRR virtualization, and instead always honor guest PAT on CPUs
   that support self-snoop.
 
 * Update to the newfangled Intel CPU FMS infrastructure.
 
 * Don't advertise IA32_PERF_GLOBAL_OVF_CTRL as an MSR-to-be-saved, as it reads
   '0' and writes from userspace are ignored.
 
 * Misc cleanups
 
 x86 - MMU:
 
 * Small cleanups, renames and refactoring extracted from the upcoming
   Intel TDX support.
 
 * Don't allocate kvm_mmu_page.shadowed_translation for shadow pages that can't
   hold leafs SPTEs.
 
 * Unconditionally drop mmu_lock when allocating TDP MMU page tables for eager
   page splitting, to avoid stalling vCPUs when splitting huge pages.
 
 * Bug the VM instead of simply warning if KVM tries to split a SPTE that is
   non-present or not-huge.  KVM is guaranteed to end up in a broken state
   because the callers fully expect a valid SPTE, it's all but dangerous
   to let more MMU changes happen afterwards.
 
 x86 - AMD:
 
 * Make per-CPU save_area allocations NUMA-aware.
 
 * Force sev_es_host_save_area() to be inlined to avoid calling into an
   instrumentable function from noinstr code.
 
 * Base support for running SEV-SNP guests.  API-wise, this includes
   a new KVM_X86_SNP_VM type, encrypting/measure the initial image into
   guest memory, and finalizing it before launching it.  Internally,
   there are some gmem/mmu hooks needed to prepare gmem-allocated pages
   before mapping them into guest private memory ranges.
 
   This includes basic support for attestation guest requests, enough to
   say that KVM supports the GHCB 2.0 specification.
 
   There is no support yet for loading into the firmware those signing
   keys to be used for attestation requests, and therefore no need yet
   for the host to provide certificate data for those keys.  To support
   fetching certificate data from userspace, a new KVM exit type will be
   needed to handle fetching the certificate from userspace. An attempt to
   define a new KVM_EXIT_COCO/KVM_EXIT_COCO_REQ_CERTS exit type to handle
   this was introduced in v1 of this patchset, but is still being discussed
   by community, so for now this patchset only implements a stub version
   of SNP Extended Guest Requests that does not provide certificate data.
 
 x86 - Intel:
 
 * Remove an unnecessary EPT TLB flush when enabling hardware.
 
 * Fix a series of bugs that cause KVM to fail to detect nested pending posted
   interrupts as valid wake eents for a vCPU executing HLT in L2 (with
   HLT-exiting disable by L1).
 
 * KVM: x86: Suppress MMIO that is triggered during task switch emulation
 
   Explicitly suppress userspace emulated MMIO exits that are triggered when
   emulating a task switch as KVM doesn't support userspace MMIO during
   complex (multi-step) emulation.  Silently ignoring the exit request can
   result in the WARN_ON_ONCE(vcpu->mmio_needed) firing if KVM exits to
   userspace for some other reason prior to purging mmio_needed.
 
   See commit 0dc902267c ("KVM: x86: Suppress pending MMIO write exits if
   emulator detects exception") for more details on KVM's limitations with
   respect to emulated MMIO during complex emulator flows.
 
 Generic:
 
 * Rename the AS_UNMOVABLE flag that was introduced for KVM to AS_INACCESSIBLE,
   because the special casing needed by these pages is not due to just
   unmovability (and in fact they are only unmovable because the CPU cannot
   access them).
 
 * New ioctl to populate the KVM page tables in advance, which is useful to
   mitigate KVM page faults during guest boot or after live migration.
   The code will also be used by TDX, but (probably) not through the ioctl.
 
 * Enable halt poll shrinking by default, as Intel found it to be a clear win.
 
 * Setup empty IRQ routing when creating a VM to avoid having to synchronize
   SRCU when creating a split IRQCHIP on x86.
 
 * Rework the sched_in/out() paths to replace kvm_arch_sched_in() with a flag
   that arch code can use for hooking both sched_in() and sched_out().
 
 * Take the vCPU @id as an "unsigned long" instead of "u32" to avoid
   truncating a bogus value from userspace, e.g. to help userspace detect bugs.
 
 * Mark a vCPU as preempted if and only if it's scheduled out while in the
   KVM_RUN loop, e.g. to avoid marking it preempted and thus writing guest
   memory when retrieving guest state during live migration blackout.
 
 Selftests:
 
 * Remove dead code in the memslot modification stress test.
 
 * Treat "branch instructions retired" as supported on all AMD Family 17h+ CPUs.
 
 * Print the guest pseudo-RNG seed only when it changes, to avoid spamming the
   log for tests that create lots of VMs.
 
 * Make the PMU counters test less flaky when counting LLC cache misses by
   doing CLFLUSH{OPT} in every loop iteration.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "ARM:

   - Initial infrastructure for shadow stage-2 MMUs, as part of nested
     virtualization enablement

   - Support for userspace changes to the guest CTR_EL0 value, enabling
     (in part) migration of VMs between heterogenous hardware

   - Fixes + improvements to pKVM's FF-A proxy, adding support for v1.1
     of the protocol

   - FPSIMD/SVE support for nested, including merged trap configuration
     and exception routing

   - New command-line parameter to control the WFx trap behavior under
     KVM

   - Introduce kCFI hardening in the EL2 hypervisor

   - Fixes + cleanups for handling presence/absence of FEAT_TCRX

   - Miscellaneous fixes + documentation updates

  LoongArch:

   - Add paravirt steal time support

   - Add support for KVM_DIRTY_LOG_INITIALLY_SET

   - Add perf kvm-stat support for loongarch

  RISC-V:

   - Redirect AMO load/store access fault traps to guest

   - perf kvm stat support

   - Use guest files for IMSIC virtualization, when available

  s390:

   - Assortment of tiny fixes which are not time critical

  x86:

   - Fixes for Xen emulation

   - Add a global struct to consolidate tracking of host values, e.g.
     EFER

   - Add KVM_CAP_X86_APIC_BUS_CYCLES_NS to allow configuring the
     effective APIC bus frequency, because TDX

   - Print the name of the APICv/AVIC inhibits in the relevant
     tracepoint

   - Clean up KVM's handling of vendor specific emulation to
     consistently act on "compatible with Intel/AMD", versus checking
     for a specific vendor

   - Drop MTRR virtualization, and instead always honor guest PAT on
     CPUs that support self-snoop

   - Update to the newfangled Intel CPU FMS infrastructure

   - Don't advertise IA32_PERF_GLOBAL_OVF_CTRL as an MSR-to-be-saved, as
     it reads '0' and writes from userspace are ignored

   - Misc cleanups

  x86 - MMU:

   - Small cleanups, renames and refactoring extracted from the upcoming
     Intel TDX support

   - Don't allocate kvm_mmu_page.shadowed_translation for shadow pages
     that can't hold leafs SPTEs

   - Unconditionally drop mmu_lock when allocating TDP MMU page tables
     for eager page splitting, to avoid stalling vCPUs when splitting
     huge pages

   - Bug the VM instead of simply warning if KVM tries to split a SPTE
     that is non-present or not-huge. KVM is guaranteed to end up in a
     broken state because the callers fully expect a valid SPTE, it's
     all but dangerous to let more MMU changes happen afterwards

  x86 - AMD:

   - Make per-CPU save_area allocations NUMA-aware

   - Force sev_es_host_save_area() to be inlined to avoid calling into
     an instrumentable function from noinstr code

   - Base support for running SEV-SNP guests. API-wise, this includes a
     new KVM_X86_SNP_VM type, encrypting/measure the initial image into
     guest memory, and finalizing it before launching it. Internally,
     there are some gmem/mmu hooks needed to prepare gmem-allocated
     pages before mapping them into guest private memory ranges

     This includes basic support for attestation guest requests, enough
     to say that KVM supports the GHCB 2.0 specification

     There is no support yet for loading into the firmware those signing
     keys to be used for attestation requests, and therefore no need yet
     for the host to provide certificate data for those keys.

     To support fetching certificate data from userspace, a new KVM exit
     type will be needed to handle fetching the certificate from
     userspace.

     An attempt to define a new KVM_EXIT_COCO / KVM_EXIT_COCO_REQ_CERTS
     exit type to handle this was introduced in v1 of this patchset, but
     is still being discussed by community, so for now this patchset
     only implements a stub version of SNP Extended Guest Requests that
     does not provide certificate data

  x86 - Intel:

   - Remove an unnecessary EPT TLB flush when enabling hardware

   - Fix a series of bugs that cause KVM to fail to detect nested
     pending posted interrupts as valid wake eents for a vCPU executing
     HLT in L2 (with HLT-exiting disable by L1)

   - KVM: x86: Suppress MMIO that is triggered during task switch
     emulation

     Explicitly suppress userspace emulated MMIO exits that are
     triggered when emulating a task switch as KVM doesn't support
     userspace MMIO during complex (multi-step) emulation

     Silently ignoring the exit request can result in the
     WARN_ON_ONCE(vcpu->mmio_needed) firing if KVM exits to userspace
     for some other reason prior to purging mmio_needed

     See commit 0dc902267c ("KVM: x86: Suppress pending MMIO write
     exits if emulator detects exception") for more details on KVM's
     limitations with respect to emulated MMIO during complex emulator
     flows

  Generic:

   - Rename the AS_UNMOVABLE flag that was introduced for KVM to
     AS_INACCESSIBLE, because the special casing needed by these pages
     is not due to just unmovability (and in fact they are only
     unmovable because the CPU cannot access them)

   - New ioctl to populate the KVM page tables in advance, which is
     useful to mitigate KVM page faults during guest boot or after live
     migration. The code will also be used by TDX, but (probably) not
     through the ioctl

   - Enable halt poll shrinking by default, as Intel found it to be a
     clear win

   - Setup empty IRQ routing when creating a VM to avoid having to
     synchronize SRCU when creating a split IRQCHIP on x86

   - Rework the sched_in/out() paths to replace kvm_arch_sched_in() with
     a flag that arch code can use for hooking both sched_in() and
     sched_out()

   - Take the vCPU @id as an "unsigned long" instead of "u32" to avoid
     truncating a bogus value from userspace, e.g. to help userspace
     detect bugs

   - Mark a vCPU as preempted if and only if it's scheduled out while in
     the KVM_RUN loop, e.g. to avoid marking it preempted and thus
     writing guest memory when retrieving guest state during live
     migration blackout

  Selftests:

   - Remove dead code in the memslot modification stress test

   - Treat "branch instructions retired" as supported on all AMD Family
     17h+ CPUs

   - Print the guest pseudo-RNG seed only when it changes, to avoid
     spamming the log for tests that create lots of VMs

   - Make the PMU counters test less flaky when counting LLC cache
     misses by doing CLFLUSH{OPT} in every loop iteration"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits)
  crypto: ccp: Add the SNP_VLEK_LOAD command
  KVM: x86/pmu: Add kvm_pmu_call() to simplify static calls of kvm_pmu_ops
  KVM: x86: Introduce kvm_x86_call() to simplify static calls of kvm_x86_ops
  KVM: x86: Replace static_call_cond() with static_call()
  KVM: SEV: Provide support for SNP_EXTENDED_GUEST_REQUEST NAE event
  x86/sev: Move sev_guest.h into common SEV header
  KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event
  KVM: x86: Suppress MMIO that is triggered during task switch emulation
  KVM: x86/mmu: Clean up make_huge_page_split_spte() definition and intro
  KVM: x86/mmu: Bug the VM if KVM tries to split a !hugepage SPTE
  KVM: selftests: x86: Add test for KVM_PRE_FAULT_MEMORY
  KVM: x86: Implement kvm_arch_vcpu_pre_fault_memory()
  KVM: x86/mmu: Make kvm_mmu_do_page_fault() return mapped level
  KVM: x86/mmu: Account pf_{fixed,emulate,spurious} in callers of "do page fault"
  KVM: x86/mmu: Bump pf_taken stat only in the "real" page fault handler
  KVM: Add KVM_PRE_FAULT_MEMORY vcpu ioctl to pre-populate guest memory
  KVM: Document KVM_PRE_FAULT_MEMORY ioctl
  mm, virt: merge AS_UNMOVABLE and AS_INACCESSIBLE
  perf kvm: Add kvm-stat for loongarch64
  LoongArch: KVM: Add PV steal time support in guest side
  ...
 2024-07-20 12:41:03 -07:00
Linus Torvalds
9fa23750c6 Landlock updates for v6.11-rc1 
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Merge tag 'landlock-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
 "This simplifies code and improves documentation"

* tag 'landlock-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  landlock: Various documentation improvements
  landlock: Clarify documentation for struct landlock_ruleset_attr
  landlock: Use bit-fields for storing handled layer access masks
 2024-07-20 11:41:52 -07:00
Linus Torvalds
acc5965b9f Char/Misc and other driver changes for 6.11-rc1 
Here is the "big" set of char/misc and other driver subsystem changes
 for 6.11-rc1.  Nothing major in here, just loads of new drivers and
 updates.  Included in here are:
   - IIO api updates and new drivers added
   - wait_interruptable_timeout() api cleanups for some drivers
   - MODULE_DESCRIPTION() additions for loads of drivers
   - parport out-of-bounds fix
   - interconnect driver updates and additions
   - mhi driver updates and additions
   - w1 driver fixes
   - binder speedups and fixes
   - eeprom driver updates
   - coresight driver updates
   - counter driver update
   - new misc driver additions
   - other minor api updates
 
 All of these, EXCEPT for the final Kconfig build fix for 32bit systems,
 have been in linux-next for a while with no reported issues.  The
 Kconfig fixup went in 29 hours ago, so might have missed the latest
 linux-next, but was acked by everyone involved.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.11-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 "big" set of char/misc and other driver subsystem changes
  for 6.11-rc1. Nothing major in here, just loads of new drivers and
  updates. Included in here are:

   - IIO api updates and new drivers added

   - wait_interruptable_timeout() api cleanups for some drivers

   - MODULE_DESCRIPTION() additions for loads of drivers

   - parport out-of-bounds fix

   - interconnect driver updates and additions

   - mhi driver updates and additions

   - w1 driver fixes

   - binder speedups and fixes

   - eeprom driver updates

   - coresight driver updates

   - counter driver update

   - new misc driver additions

   - other minor api updates

  All of these, EXCEPT for the final Kconfig build fix for 32bit
  systems, have been in linux-next for a while with no reported issues.
  The Kconfig fixup went in 29 hours ago, so might have missed the
  latest linux-next, but was acked by everyone involved"

* tag 'char-misc-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (330 commits)
  misc: Kconfig: exclude mrvl-cn10k-dpi compilation for 32-bit systems
  misc: delete Makefile.rej
  binder: fix hang of unregistered readers
  misc: Kconfig: add a new dependency for MARVELL_CN10K_DPI
  virtio: add missing MODULE_DESCRIPTION() macro
  agp: uninorth: add missing MODULE_DESCRIPTION() macro
  spmi: add missing MODULE_DESCRIPTION() macros
  dev/parport: fix the array out-of-bounds risk
  samples: configfs: add missing MODULE_DESCRIPTION() macro
  misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver
  misc: keba: Fix missing AUXILIARY_BUS dependency
  slimbus: Fix struct and documentation alignment in stream.c
  MAINTAINERS: CC dri-devel list on Qualcomm FastRPC patches
  misc: fastrpc: use coherent pool for untranslated Compute Banks
  misc: fastrpc: support complete DMA pool access to the DSP
  misc: fastrpc: add missing MODULE_DESCRIPTION() macro
  misc: fastrpc: Add missing dev_err newlines
  misc: fastrpc: Use memdup_user()
  nvmem: core: Implement force_ro sysfs attribute
  nvmem: Use sysfs_emit() for type attribute
  ...
 2024-07-19 15:55:08 -07:00
Linus Torvalds
12cc3d5389 sound updates for 6.11-rc1 
Lots of changes in this cycle, but mostly for cleanups and
 refactoring.  Significant amount of changes are about DT schema
 conversions for ASoC at this time while we see other usual
 suspects, too.  Some highlights below:
 
 Core:
 - Re-introduction of PCM sync ID support API
 - MIDI2 time-base extension in ALSA sequencer API
 
 ASoC:
 - Syncing of features between simple-audio-card and the two
   audio-graph cards
 - Support for specifying the order of operations for components
   within cards to allow quirking for unusual systems
 - Lots of DT schema conversions
 - Continued SOF/Intel updates for topology, SoundWire, IPC3/4
 - New support for Asahi Kasei AK4619, Cirrus Logic CS530x, Everest
   Semiconductors ES8311, NXP i.MX95 and LPC32xx, Qualcomm LPASS
   v2.5 and WCD937x, Realtek RT1318 and RT1320 and Texas
   Instruments PCM5242
 
 HD-audio:
 - More quirks, Intel PantherLake support, senarytech codec support
 - Refactoring of Cirrus codec component-binding
 
 Others:
 - ALSA control kselftest improvements, and fixes for input value
   checks in various drivers
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Merge tag 'sound-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "Lots of changes in this cycle, but mostly for cleanups and
  refactoring.

  Significant amount of changes are about DT schema conversions for ASoC
  at this time while we see other usual suspects, too.

  Some highlights below:

  Core:
   - Re-introduction of PCM sync ID support API
   - MIDI2 time-base extension in ALSA sequencer API

  ASoC:
   - Syncing of features between simple-audio-card and the two
     audio-graph cards
   - Support for specifying the order of operations for components
     within cards to allow quirking for unusual systems
   - Lots of DT schema conversions
   - Continued SOF/Intel updates for topology, SoundWire, IPC3/4
   - New support for Asahi Kasei AK4619, Cirrus Logic CS530x, Everest
     Semiconductors ES8311, NXP i.MX95 and LPC32xx, Qualcomm LPASS v2.5
     and WCD937x, Realtek RT1318 and RT1320 and Texas Instruments
     PCM5242

  HD-audio:
   - More quirks, Intel PantherLake support, senarytech codec support
   - Refactoring of Cirrus codec component-binding

  Others:
   - ALSA control kselftest improvements, and fixes for input value
     checks in various drivers"

* tag 'sound-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (349 commits)
  kselftest/alsa: Log the PCM ID in pcm-test
  kselftest/alsa: Use card name rather than number in test names
  ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book Pro 360
  ALSA: hda/tas2781: Add new quirk for Lenovo Hera2 Laptop
  ALSA: seq: ump: Skip useless ports for static blocks
  ALSA: pcm_dmaengine: Don't synchronize DMA channel when DMA is paused
  ALSA: usb: Use BIT() for bit values
  ALSA: usb: Fix UBSAN warning in parse_audio_unit()
  ALSA: hda/realtek: Enable headset mic on Positivo SU C1400
  ASoC: tas2781: Add new Kontrol to set tas2563 digital Volume
  ASoC: codecs: wcd937x: Remove separate handling for vdd-buck supply
  ASoC: codecs: wcd937x: Remove the string compare in MIC BIAS widget settings
  ASoC: codecs: wcd937x-sdw: Fix Unbalanced pm_runtime_enable
  ASoC: dt-bindings: cirrus,cs42xx8: Convert to dtschema
  ASoC: cs530x: Remove bclk from private structure
  ASoC: cs530x: Calculate proper bclk rate using TDM
  ASoC: dt-bindings: cirrus,cs4270: Convert to dtschema
  firmware: cs_dsp: Rename fw_ver to wmfw_ver
  firmware: cs_dsp: Clarify wmfw format version log message
  firmware: cs_dsp: Make wmfw and bin filename arguments const char *
  ...
 2024-07-19 12:39:34 -07:00
Jason A. Donenfeld
13f75d9ecf random: note that RNDGETPOOL was removed in 2.6.9-rc2 
RNDGETPOOL was thankfully removed twenty years ago, but it's stuck
around in headers. Probably removing it from uapi headers isn't great in
case there are some weird users out there, but we should at least mark
this as having been removed, to save future readers the same goose chase
I just went on.

Link: https://lore.kernel.org/all/E1By1St-0001TS-Qj@thunk.org/
Link: https://lore.kernel.org/all/Pine.LNX.4.58.0409130937050.4094@ppc970.osdl.org/
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2024-07-19 20:22:48 +02:00
Jason A. Donenfeld
4ad10a5f5f random: introduce generic vDSO getrandom() implementation 
Provide a generic C vDSO getrandom() implementation, which operates on
an opaque state returned by vgetrandom_alloc() and produces random bytes
the same way as getrandom(). This has the following API signature:

  ssize_t vgetrandom(void *buffer, size_t len, unsigned int flags,
                     void *opaque_state, size_t opaque_len);

The return value and the first three arguments are the same as ordinary
getrandom(), while the last two arguments are a pointer to the opaque
allocated state and its size. Were all five arguments passed to the
getrandom() syscall, nothing different would happen, and the functions
would have the exact same behavior.

The actual vDSO RNG algorithm implemented is the same one implemented by
drivers/char/random.c, using the same fast-erasure techniques as that.
Should the in-kernel implementation change, so too will the vDSO one.

It requires an implementation of ChaCha20 that does not use any stack,
in order to maintain forward secrecy if a multi-threaded program forks
(though this does not account for a similar issue with SA_SIGINFO
copying registers to the stack), so this is left as an
architecture-specific fill-in. Stack-less ChaCha20 is an easy algorithm
to implement on a variety of architectures, so this shouldn't be too
onerous.

Initially, the state is keyless, and so the first call makes a
getrandom() syscall to generate that key, and then uses it for
subsequent calls. By keeping track of a generation counter, it knows
when its key is invalidated and it should fetch a new one using the
syscall. Later, more than just a generation counter might be used.

Since MADV_WIPEONFORK is set on the opaque state, the key and related
state is wiped during a fork(), so secrets don't roll over into new
processes, and the same state doesn't accidentally generate the same
random stream. The generation counter, as well, is always >0, so that
the 0 counter is a useful indication of a fork() or otherwise
uninitialized state.

If the kernel RNG is not yet initialized, then the vDSO always calls the
syscall, because that behavior cannot be emulated in userspace, but
fortunately that state is short lived and only during early boot. If it
has been initialized, then there is no need to inspect the `flags`
argument, because the behavior does not change post-initialization
regardless of the `flags` value.

Since the opaque state passed to it is mutated, vDSO getrandom() is not
reentrant, when used with the same opaque state, which libc should be
mindful of.

The function works over an opaque per-thread state of a particular size,
which must be marked VM_WIPEONFORK, VM_DONTDUMP, VM_NORESERVE, and
VM_DROPPABLE for proper operation. Over time, the nuances of these
allocations may change or grow or even differ based on architectural
features.

The opaque state passed to vDSO getrandom() must be allocated using the
mmap_flags and mmap_prot parameters provided by the vgetrandom_opaque_params
struct, which also contains the size of each state. That struct can be
obtained with a call to vgetrandom(NULL, 0, 0, &params, ~0UL). Then,
libc can call mmap(2) and slice up the returned array into a state per
each thread, while ensuring that no single state straddles a page
boundary. Libc is expected to allocate a chunk of these on first use,
and then dole them out to threads as they're created, allocating more
when needed.

vDSO getrandom() provides the ability for userspace to generate random
bytes quickly and safely, and is intended to be integrated into libc's
thread management. As an illustrative example, the introduced code in
the vdso_test_getrandom self test later in this series might be used to
do the same outside of libc. In a libc the various pthread-isms are
expected to be elided into libc internals.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2024-07-19 20:22:12 +02:00
Jason A. Donenfeld
9651fcedf7 mm: add MAP_DROPPABLE for designating always lazily freeable mappings 
The vDSO getrandom() implementation works with a buffer allocated with a
new system call that has certain requirements:

- It shouldn't be written to core dumps.
  * Easy: VM_DONTDUMP.
- It should be zeroed on fork.
  * Easy: VM_WIPEONFORK.

- It shouldn't be written to swap.
  * Uh-oh: mlock is rlimited.
  * Uh-oh: mlock isn't inherited by forks.

- It shouldn't reserve actual memory, but it also shouldn't crash when
  page faulting in memory if none is available
  * Uh-oh: VM_NORESERVE means segfaults.

It turns out that the vDSO getrandom() function has three really nice
characteristics that we can exploit to solve this problem:

1) Due to being wiped during fork(), the vDSO code is already robust to
   having the contents of the pages it reads zeroed out midway through
   the function's execution.

2) In the absolute worst case of whatever contingency we're coding for,
   we have the option to fallback to the getrandom() syscall, and
   everything is fine.

3) The buffers the function uses are only ever useful for a maximum of
   60 seconds -- a sort of cache, rather than a long term allocation.

These characteristics mean that we can introduce VM_DROPPABLE, which
has the following semantics:

a) It never is written out to swap.
b) Under memory pressure, mm can just drop the pages (so that they're
   zero when read back again).
c) It is inherited by fork.
d) It doesn't count against the mlock budget, since nothing is locked.
e) If there's not enough memory to service a page fault, it's not fatal,
   and no signal is sent.

This way, allocations used by vDSO getrandom() can use:

    VM_DROPPABLE | VM_DONTDUMP | VM_WIPEONFORK | VM_NORESERVE

And there will be no problem with OOMing, crashing on overcommitment,
using memory when not in use, not wiping on fork(), coredumps, or
writing out to swap.

In order to let vDSO getrandom() use this, expose these via mmap(2) as
MAP_DROPPABLE.

Note that this involves removing the MADV_FREE special case from
sort_folio(), which according to Yu Zhao is unnecessary and will simply
result in an extra call to shrink_folio_list() in the worst case. The
chunk removed reenables the swapbacked flag, which we don't want for
VM_DROPPABLE, and we can't conditionalize it here because there isn't a
vma reference available.

Finally, the provided self test ensures that this is working as desired.

Cc: linux-mm@kvack.org
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2024-07-19 20:22:12 +02:00
Linus Torvalds
4305ca0087 SCSI misc on 20240718 
Updates to the usual drivers (ufs, lpfc, qla2xxx, mpi3mr) plus some
 misc small fixes. The only core changes are to both bsg and scsi to
 pass in the device instead of setting it afterwards as q->queuedata,
 so no functional change.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (ufs, lpfc, qla2xxx, mpi3mr) plus some
  misc small fixes.

  The only core changes are to both bsg and scsi to pass in the device
  instead of setting it afterwards as q->queuedata, so no functional
  change"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (69 commits)
  scsi: aha152x: Use DECLARE_COMPLETION_ONSTACK for non-constant completion
  scsi: qla2xxx: Convert comma to semicolon
  scsi: qla2xxx: Update version to 10.02.09.300-k
  scsi: qla2xxx: Use QP lock to search for bsg
  scsi: qla2xxx: Reduce fabric scan duplicate code
  scsi: qla2xxx: Fix optrom version displayed in FDMI
  scsi: qla2xxx: During vport delete send async logout explicitly
  scsi: qla2xxx: Complete command early within lock
  scsi: qla2xxx: Fix flash read failure
  scsi: qla2xxx: Return ENOBUFS if sg_cnt is more than one for ELS cmds
  scsi: qla2xxx: Fix for possible memory corruption
  scsi: qla2xxx: validate nvme_local_port correctly
  scsi: qla2xxx: Unable to act on RSCN for port online
  scsi: ufs: exynos: Add support for Flash Memory Protector (FMP)
  scsi: ufs: core: Add UFSHCD_QUIRK_KEYS_IN_PRDT
  scsi: ufs: core: Add fill_crypto_prdt variant op
  scsi: ufs: core: Add UFSHCD_QUIRK_BROKEN_CRYPTO_ENABLE
  scsi: ufs: core: fold ufshcd_clear_keyslot() into its caller
  scsi: ufs: core: Add UFSHCD_QUIRK_CUSTOM_CRYPTO_PROFILE
  scsi: ufs: mcq: Make .get_hba_mac() optional
  ...
 2024-07-19 10:56:58 -07:00
Linus Torvalds
3d51520954 RDMA v6.11 merge window 
Usual collection of small improvements and fixes:
 
 - Bug fixes and minor improvments in efa, irdma, mlx4, mlx5, rxe, hf1,
   qib, ocrdma
 
 - bnxt_re support for MSN, which is a new retransmit logic
 
 - Initial mana support for RC qps
 
 - Use after free bug and cleanups in iwcm
 
 - Reduce resource usage in mlx5 when RDMA verbs features are not used
 
 - New verb to drain shared recieve queues, similar to normal recieve
   queues. This is necessary to allow ULPs a clean shutdown. Used in the
   iscsi rdma target
 
 - mlx5 support for more than 16 bits of doorbell indexes
 
 - Doorbell moderation support for bnxt_re
 
 - IB multi-plane support for mlx5
 
 - New EFA adaptor PCI IDs
 
 - RDMA_NAME_ASSIGN_TYPE_USER to hint to userspace that it shouldn't rename
   the device
 
 - A collection of hns bugs
 
 - Fix long standing bug in bnxt_re with incorrect endian handling of
   immediate data
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Usual collection of small improvements and fixes:

   - Bug fixes and minor improvments in efa, irdma, mlx4, mlx5, rxe,
     hf1, qib, ocrdma

   - bnxt_re support for MSN, which is a new retransmit logic

   - Initial mana support for RC qps

   - Use after free bug and cleanups in iwcm

   - Reduce resource usage in mlx5 when RDMA verbs features are not used

   - New verb to drain shared recieve queues, similar to normal recieve
     queues. This is necessary to allow ULPs a clean shutdown. Used in
     the iscsi rdma target

   - mlx5 support for more than 16 bits of doorbell indexes

   - Doorbell moderation support for bnxt_re

   - IB multi-plane support for mlx5

   - New EFA adaptor PCI IDs

   - RDMA_NAME_ASSIGN_TYPE_USER to hint to userspace that it shouldn't
     rename the device

   - A collection of hns bugs

   - Fix long standing bug in bnxt_re with incorrect endian handling of
     immediate data"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (65 commits)
  IB/hfi1: Constify struct flag_table
  RDMA/mana_ib: Set correct device into ib
  bnxt_re: Fix imm_data endianness
  RDMA: Fix netdev tracker in ib_device_set_netdev
  RDMA/hns: Fix mbx timing out before CMD execution is completed
  RDMA/hns: Fix insufficient extend DB for VFs.
  RDMA/hns: Fix undifined behavior caused by invalid max_sge
  RDMA/hns: Fix shift-out-bounds when max_inline_data is 0
  RDMA/hns: Fix missing pagesize and alignment check in FRMR
  RDMA/hns: Fix unmatch exception handling when init eq table fails
  RDMA/hns: Fix soft lockup under heavy CEQE load
  RDMA/hns: Check atomic wr length
  RDMA/ocrdma: Don't inline statistics functions
  RDMA/core: Introduce "name_assign_type" for an IB device
  RDMA/qib: Fix truncation compilation warnings in qib_verbs.c
  RDMA/qib: Fix truncation compilation warnings in qib_init.c
  RDMA/efa: Add EFA 0xefa3 PCI ID
  RDMA/mlx5: Support per-plane port IB counters by querying PPCNT register
  net/mlx5: mlx5_ifc update for accessing ppcnt register of plane ports
  RDMA/mlx5: Add plane index support when querying PTYS registers
  ...
 2024-07-19 09:51:33 -07:00
Linus Torvalds
ef7c8f2b1f iommufd for 6.11 merge window 
Major changes:
 
 - The iova_bitmap logic for efficiently reporting dirty pages back to
   userspace has a few more tricky corner case bugs that have been resolved
   and backed with new tests. The revised version has simpler logic.
 
 - Shared branch with iommu for handle support when doing domain
   attach. Handles allow the domain owner to include additional private data
   on a per-device basis.
 
 - IO Page Fault Reporting to userspace via iommufd. Page faults can be
   generated on fault capable HWPTs when a translation is not present.
   Routing them to userspace would allow a VMM to be able to virtualize them
   into an emulated vIOMMU. This is the next step to fully enabling vSVA
   support.
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd

Pull iommufd updates from Jason Gunthorpe:

 - The iova_bitmap logic for efficiently reporting dirty pages back to
   userspace has a few more tricky corner case bugs that have been
   resolved and backed with new tests.

   The revised version has simpler logic.

 - Shared branch with iommu for handle support when doing domain attach.

   Handles allow the domain owner to include additional private data on
   a per-device basis.

 - IO Page Fault Reporting to userspace via iommufd. Page faults can be
   generated on fault capable HWPTs when a translation is not present.

   Routing them to userspace would allow a VMM to be able to virtualize
   them into an emulated vIOMMU. This is the next step to fully enabling
   vSVA support.

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: (26 commits)
  iommufd: Put constants for all the uAPI enums
  iommufd: Fix error pointer checking
  iommufd: Add check on user response code
  iommufd: Remove IOMMUFD_PAGE_RESP_FAILURE
  iommufd: Require drivers to supply the cache_invalidate_user ops
  iommufd/selftest: Add coverage for IOPF test
  iommufd/selftest: Add IOPF support for mock device
  iommufd: Associate fault object with iommufd_hw_pgtable
  iommufd: Fault-capable hwpt attach/detach/replace
  iommufd: Add iommufd fault object
  iommufd: Add fault and response message definitions
  iommu: Extend domain attach group with handle support
  iommu: Add attach handle to struct iopf_group
  iommu: Remove sva handle list
  iommu: Introduce domain attachment handle
  iommufd/iova_bitmap: Remove iterator logic
  iommufd/iova_bitmap: Dynamic pinning on iova_bitmap_set()
  iommufd/iova_bitmap: Consolidate iova_bitmap_set exit conditionals
  iommufd/iova_bitmap: Move initial pinning to iova_bitmap_for_each()
  iommufd/iova_bitmap: Cache mapped length in iova_bitmap_map struct
  ...
 2024-07-19 09:42:29 -07:00
Linus Torvalds
4f40c636b2 NFS Client Updates for Linux 6.11 
New Features:
   * Add support for large folios
   * Implement rpcrdma generic device removal notification
   * Add client support for attribute delegations
   * Use a LAYOUTRETURN during reboot recovery to report layoutstats and errors
   * Improve throughput for random buffered writes
   * Add NVMe support to pnfs/blocklayout
 
 Bugfixes:
   * Fix rpcrdma_reqs_reset()
   * Avoid soft lockups when using UDP
   * Fix an nfs/blocklayout premature PR key unregestration
   * Another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server
   * Do not extend writes to the entire folio
   * Pass explicit offset and count values to tracepoints
   * Fix a race to wake up sleeping SUNRPC sync tasks
   * Fix gss_status tracepoint output
 
 Cleanups:
   * Add missing MODULE_DESCRIPTION() macros
   * Add blocklayout / SCSI layout tracepoints
   * Remove asm-generic headers from xprtrdma verbs.c
   * Remove unused 'struct mnt_fhstatus'
   * Other delegation related cleanups
   * Other folio related cleanups
   * Other pNFS related cleanups
   * Other xprtrdma cleanups
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Merge tag 'nfs-for-6.11-1' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client updates from Anna Schumaker:
 "New Features:
   - Add support for large folios
   - Implement rpcrdma generic device removal notification
   - Add client support for attribute delegations
   - Use a LAYOUTRETURN during reboot recovery to report layoutstats
     and errors
   - Improve throughput for random buffered writes
   - Add NVMe support to pnfs/blocklayout

  Bugfixes:
   - Fix rpcrdma_reqs_reset()
   - Avoid soft lockups when using UDP
   - Fix an nfs/blocklayout premature PR key unregestration
   - Another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server
   - Do not extend writes to the entire folio
   - Pass explicit offset and count values to tracepoints
   - Fix a race to wake up sleeping SUNRPC sync tasks
   - Fix gss_status tracepoint output

  Cleanups:
   - Add missing MODULE_DESCRIPTION() macros
   - Add blocklayout / SCSI layout tracepoints
   - Remove asm-generic headers from xprtrdma verbs.c
   - Remove unused 'struct mnt_fhstatus'
   - Other delegation related cleanups
   - Other folio related cleanups
   - Other pNFS related cleanups
   - Other xprtrdma cleanups"

* tag 'nfs-for-6.11-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (63 commits)
  SUNRPC: Fixup gss_status tracepoint error output
  SUNRPC: Fix a race to wake a sync task
  nfs: split nfs_read_folio
  nfs: pass explicit offset/count to trace events
  nfs: do not extend writes to the entire folio
  nfs/blocklayout: add support for NVMe
  nfs: remove nfs_page_length
  nfs: remove the unused max_deviceinfo_size field from struct pnfs_layoutdriver_type
  nfs: don't reuse partially completed requests in nfs_lock_and_join_requests
  nfs: move nfs_wait_on_request to write.c
  nfs: fold nfs_page_group_lock_subrequests into nfs_lock_and_join_requests
  nfs: fold nfs_folio_find_and_lock_request into nfs_lock_and_join_requests
  nfs: simplify nfs_folio_find_and_lock_request
  nfs: remove nfs_folio_private_request
  nfs: remove dead code for the old swap over NFS implementation
  NFSv4.1 another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server
  nfs: Block on write congestion
  nfs: Properly initialize server->writeback
  nfs: Drop pointless check from nfs_commit_release_pages()
  nfs/blocklayout: SCSI layout trace points for reservation key reg/unreg
  ...
 2024-07-18 17:17:30 -07:00
Lucas De Marchi
7108b4a589 drm/xe/uapi: Expose SIMD16 EU mask in topology query 
PVC, Xe2 and later platforms have 16-wide EUs. We were implicitly
reporting for PVC the number of 16-wide EUs without giving userspace any
hint that they were different than for other platforms. Xe2 and later
also have 16-wide, but in those cases the reported number would
correspond to the 8-wide count.

To avoid confusion and make sure the right number is used by userspace
depending on the platform, add a new item to the topology query and drop
the one that is not available. The new mask reported for both PVC and
Xe2 should now match the numbers reported via hwconfig.

v2: Use a different topo item with EU type in its name to report the
    new mask instead of adding the type itself as the item (Matt Roper)

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Acked-by: José Roberto de Souza <jose.souza@intel.com>
Acked-by: Mateusz Jablonski <mateusz.jablonski@intel.com>
Acked-by: Wenbin Lu <wenbin.lu@intel.com>
Acked-by: Effie Yu <effie.yu@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240710220446.2169797-1-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
 2024-07-18 13:20:30 -07:00
Linus Torvalds
91bd008d4e Probes updates for v6.11: 
Uprobes:
 - x86/shstk: Make return uprobe work with shadow stack.
 - Add uretprobe syscall which speeds up the uretprobe 10-30% faster. This
   syscall is automatically used from user-space trampolines which are
   generated by the uretprobe. If this syscall is used by normal
   user program, it will cause SIGILL. Note that this is currently only
   implemented on x86_64.
   (This also has 2 fixes for adjusting the syscall number to avoid conflict
    with new *attrat syscalls.)
 - uprobes/perf: fix user stack traces in the presence of pending uretprobe.
   This corrects the uretprobe's trampoline address in the stacktrace with
   correct return address.
 - selftests/x86: Add a return uprobe with shadow stack test.
 - selftests/bpf: Add uretprobe syscall related tests.
   . test case for register integrity check.
   . test case with register changing case.
   . test case for uretprobe syscall without uprobes (expected to be failed).
   . test case for uretprobe with shadow stack.
 - selftests/bpf: add test validating uprobe/uretprobe stack traces
 - MAINTAINERS: Add uprobes entry. This does not specify the tree but to
   clarify who maintains and reviews the uprobes.
 
 Kprobes:
 - tracing/kprobes: Test case cleanups. Replace redundant WARN_ON_ONCE() +
   pr_warn() with WARN_ONCE() and remove unnecessary code from selftest.
 - tracing/kprobes: Add symbol counting check when module loads. This
   checks the uniqueness of the probed symbol on modules. The same check
   has already done for kernel symbols.
   (This also has a fix for build error with CONFIG_MODULES=n)
 
 Cleanup:
 - Add MODULE_DESCRIPTION() macros for fprobe and kprobe examples.
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Merge tag 'probes-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes updates from Masami Hiramatsu:
 "Uprobes:

   - x86/shstk: Make return uprobe work with shadow stack

   - Add uretprobe syscall which speeds up the uretprobe 10-30% faster.
     This syscall is automatically used from user-space trampolines
     which are generated by the uretprobe. If this syscall is used by
     normal user program, it will cause SIGILL. Note that this is
     currently only implemented on x86_64.

     (This also has two fixes for adjusting the syscall number to avoid
     conflict with new *attrat syscalls.)

   - uprobes/perf: fix user stack traces in the presence of pending
     uretprobe. This corrects the uretprobe's trampoline address in the
     stacktrace with correct return address

   - selftests/x86: Add a return uprobe with shadow stack test

   - selftests/bpf: Add uretprobe syscall related tests.
      - test case for register integrity check
      - test case with register changing case
      - test case for uretprobe syscall without uprobes (expected to fail)
      - test case for uretprobe with shadow stack

   - selftests/bpf: add test validating uprobe/uretprobe stack traces

   - MAINTAINERS: Add uprobes entry. This does not specify the tree but
     to clarify who maintains and reviews the uprobes

  Kprobes:

   - tracing/kprobes: Test case cleanups.

     Replace redundant WARN_ON_ONCE() + pr_warn() with WARN_ONCE() and
     remove unnecessary code from selftest

   - tracing/kprobes: Add symbol counting check when module loads.

     This checks the uniqueness of the probed symbol on modules. The
     same check has already done for kernel symbols

     (This also has a fix for build error with CONFIG_MODULES=n)

  Cleanup:

   - Add MODULE_DESCRIPTION() macros for fprobe and kprobe examples"

* tag 'probes-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  MAINTAINERS: Add uprobes entry
  selftests/bpf: Change uretprobe syscall number in uprobe_syscall test
  uprobe: Change uretprobe syscall scope and number
  tracing/kprobes: Fix build error when find_module() is not available
  tracing/kprobes: Add symbol counting check when module loads
  selftests/bpf: add test validating uprobe/uretprobe stack traces
  perf,uprobes: fix user stack traces in the presence of pending uretprobes
  tracing/kprobe: Remove cleanup code unrelated to selftest
  tracing/kprobe: Integrate test warnings into WARN_ONCE
  selftests/bpf: Add uretprobe shadow stack test
  selftests/bpf: Add uretprobe syscall call from user space test
  selftests/bpf: Add uretprobe syscall test for regs changes
  selftests/bpf: Add uretprobe syscall test for regs integrity
  selftests/x86: Add return uprobe shadow stack test
  uprobe: Add uretprobe syscall to speed up return probe
  uprobe: Wire up uretprobe system call
  x86/shstk: Make return uprobe work with shadow stack
  samples: kprobes: add missing MODULE_DESCRIPTION() macros
  fprobe: add missing MODULE_DESCRIPTION() macro
 2024-07-18 12:19:20 -07:00
Linus Torvalds
b3ce7a3084 drm next for 6.11-rc1: 
core:
 - deprecate DRM data and return 0 date
 - connector: Create a set of helpers to help with HDMI support
 - Remove driver owner assignments
 - Allow more drivers to compile with COMPILE_TEST
 - Conversions to drm_edid
 - Sprinkle MODULE_DESCRIPTIONS everywhere they are missing
 - Remove drm_mm_replace_node
 - print: Add a drm prefix to warn level messages too, remove
          ___drm_dbg, consolidate prefix handling
 - New monochrome TV mode variant
 
 ttm:
 - improve number of page faults on some platforms
 - fix test builds under PREEMPT_RT
 - more test coverage
 
 ci:
 - Require a more recent version of mesa,
 - improve farm setup and test generation
 
 dma-buf:
 - warn if reserving 0 fence slots
 - internal API heap enhancements
 
 fbdev:
 - Create memory manager optimized fbdev emulation
 
 panic:
 - Allow to select fonts,
 - improve drm_fb_dma_get_scanout_buffer
 - Allow to dump kmsg to the screen
 
 bridge:
 - Remove redundant checks on bridge->encoder
 - Remove drm_bridge_chain_mode_fixup
 - bridge-connector: Plumb in the new HDMI helper
 - analogix_dp: Various improvements, handle AUX transfers timeout
 - samsung-dsim: Fix timings calculation
 - tc358767: Plenty of small fixes, fix no connector attach, fix clocks
 - sii902x: state validation improvements
 
 panels:
 - Switch panels from register table initialization to proper code
 - Now that the panel code tracks the panel state, remove every
   ad-hoc implementation in the panel drivers
 - More cleanup of prepare / enable state tracking in drivers
 - edp: Drop legacy panel compatibles
 - simple-bridge: Switch to devm_drm_bridge_add
 - New panels: Lincoln Tech Sol LCD185-101CT, Microtips Technology
   13-101HIEBCAF0-C, Microtips Technology MF-103HIEB0GA0, BOE
   nv110wum-l60, IVO t109nw41, WL-355608-A8, PrimeView PM070WL4,
   Lincoln Technologies LCD197, Ortustech COM35H3P70ULC,
   AUO G104STN01, K&d kd101ne3-40ti
 
 amdgpu:
 - DCN 4.0.x support
 - GC 12.0 support
 - GMC 12.0 support
 - SDMA 7.0 support
 - MES12 support
 - MMHUB 4.1 support
 - GFX12 modifier and DCC support
 - lots of IP fixes/updates
 
 amdkfd:
 - Contiguous VRAM allocations
 - GC 12.0 support
 - SDMA 7.0 support
 - SR-IOV fixes
 - KFD GFX ALU exceptions
 
 i915:
 - Battlemage Xe2 HPD display enablement
 - Panel Replay enabling
 - DP AUX-less ALPM/LOBF
 - Enable link training failure fallback for DP MST links
 - CMRR (Content Match Refresh Rate) enabling
 - Increase ADL-S/ADL-P/DG2+ max TMDS bitrate to 6 Gbps
 - Enable eDP AUX based HDR backlight
 - Support replaying GPU hangs with captured context image
 - Automate CCS Mode setting during engine resets
 - lots of refactoring
 - Support replaying GPU hangs with captured context image
 - Increase FLR timeout from 3s to 9s
 - Enable w/a 16021333562 for DG2, MTL and ARL [guc]
 
 xe:
 - update MAINATINERS
 - New uapi adding OA functionality to Xe
 - expose l3 bank mask
 - fix display detect on ADL-N
 - runtime PM Fixes
 - Fix silent backmerge issues
 - More prep for SR-IOV
 - HWmon additions
 - per client usage info
 - Rework GPU page fault handling
 - Drop EXEC_QUEUE_FLAG_BANNED
 - Add BMG PCI IDs
 - Scheduler fixes and improvements
 - Rename xe_exec_queue::compute to xe_exec_queue::lr
 - Use ttm_uncached for BO with NEEDS_UC flag
 - Rename xe perf layer as xe observation layer
 - lots of refactoring
 
 radeon:
 - Backlight workaround for iMac
 - Silence UBSAN flex array warnings
 
 msm:
 - Validate registers XML description against schema in CI
 - core/dpu: SM7150 support
 - mdp5: Add support for MSM8937
 - gpu: Add param for userspace to know if raytracing is supported
 - gpu: X185 support (aka gpu in X1 laptop chips)
 - gpu: a505 support
 
 ivpu:
 - hardware scheduler support
 - profiling support
 - improvements to the platform support layer
 - firmware handling improvements
 - clocks/power mgmt improvements
 - scheduler/logging improvements
 
 habanalabs:
 - Gradual sleep in polling memory macro.
 - Reduce Gaudi2 MSI-X interrupt count to 128.
 - Add Gaudi2-D revision support.
 - Add timestamp to CPLD info.
 - Gaudi2: Assume hard-reset by firmware upon MC SEI severe error.
 - Align Gaudi2 interrupt names.
 - Check for errors after preboot is ready.
 - Change habanalabs maintainer and git repo path.
 
 mgag200:
 - refactoring and improvements
 - Add BMC output
 - enable polling
 
 nouveau:
 - add registry command line
 
 v3d:
 - perf counters improvements
 
 zynqmp:
 - irq and debugfs improvements
 
 atmel-hlcdc:
 - Support XLCDC in sam9x7
 
 mipi-dbi:
 - Remove mipi_dbi_machine_little_endian
 - make SPI bits per word configurable
 - support RGB888
 - allow pixel formats to be specified in the DT
 
 sun4i:
 - Rework the blender setup for DE2
 
 panfrost:
 - Enable MT8188 support
 
 vc4:
 - Monochrome TV support
 
 exynos:
 - fix fallback mode regression
 - fix memory leak
 - Use drm_edid_duplicate() instead of kmemdup()
 
 etnaviv:
 - fix i.MX8MP NPU clock gating
 - workaround FE register cdc issues on some cores
 - fix DMA sync handling for cached buffers
 - fix job timeout handling
 - keep TS enabled on MMUv2 cores for improved performance
 
 mediatek:
 - Convert to platform remove callback returning void-
 - Drop chain_mode_fixup call in mode_valid()
 - Fixes the errors of MediaTek display driver found by IGT.
 - Add display support for the MT8365-EVK board
 - Fix bit depth overwritten for mtk_ovl_set bit_depth()
 - Fix possible_crtcs calculation
 - Fix spurious kfree()
 
 ast:
 - refactor mode setting code
 
 stm:
 - Add LVDS support
 - DSI PHY updates
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Merge tag 'drm-next-2024-07-18' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "There's a lot of stuff in here, amd, i915 and xe have new platform
  work, lots of core rework around EDID handling, some new COMPILE_TEST
  options, maintainer changes and a lots of other stuff. Summary:

  core:
   - deprecate DRM data and return 0 date
   - connector: Create a set of helpers to help with HDMI support
   - Remove driver owner assignments
   - Allow more drivers to compile with COMPILE_TEST
   - Conversions to drm_edid
   - Sprinkle MODULE_DESCRIPTIONS everywhere they are missing
   - Remove drm_mm_replace_node
   - print: Add a drm prefix to warn level messages too, remove
            ___drm_dbg, consolidate prefix handling
   - New monochrome TV mode variant

  ttm:
   - improve number of page faults on some platforms
   - fix test builds under PREEMPT_RT
   - more test coverage

  ci:
   - Require a more recent version of mesa
   - improve farm setup and test generation

  dma-buf:
   - warn if reserving 0 fence slots
   - internal API heap enhancements

  fbdev:
   - Create memory manager optimized fbdev emulation

  panic:
   - Allow to select fonts
   - improve drm_fb_dma_get_scanout_buffer
   - Allow to dump kmsg to the screen

  bridge:
   - Remove redundant checks on bridge->encoder
   - Remove drm_bridge_chain_mode_fixup
   - bridge-connector: Plumb in the new HDMI helper
   - analogix_dp: Various improvements, handle AUX transfers timeout
   - samsung-dsim: Fix timings calculation
   - tc358767: Plenty of small fixes, fix no connector attach, fix
               clocks
   - sii902x: state validation improvements

  panels:
   - Switch panels from register table initialization to proper code
   - Now that the panel code tracks the panel state, remove every ad-hoc
     implementation in the panel drivers
   - More cleanup of prepare / enable state tracking in drivers
   - edp: Drop legacy panel compatibles
   - simple-bridge: Switch to devm_drm_bridge_add
   - New panels: Lincoln Tech Sol LCD185-101CT, Microtips Technology
                 13-101HIEBCAF0-C, Microtips Technology MF-103HIEB0GA0,
                 BOE nv110wum-l60, IVO t109nw41, WL-355608-A8, PrimeView
                 PM070WL4, Lincoln Technologies LCD197, Ortustech
                 COM35H3P70ULC, AUO G104STN01, K&d kd101ne3-40ti

  amdgpu:
   - DCN 4.0.x support
   - GC 12.0 support
   - GMC 12.0 support
   - SDMA 7.0 support
   - MES12 support
   - MMHUB 4.1 support
   - GFX12 modifier and DCC support
   - lots of IP fixes/updates

  amdkfd:
   - Contiguous VRAM allocations
   - GC 12.0 support
   - SDMA 7.0 support
   - SR-IOV fixes
   - KFD GFX ALU exceptions

  i915:
   - Battlemage Xe2 HPD display enablement
   - Panel Replay enabling
   - DP AUX-less ALPM/LOBF
   - Enable link training failure fallback for DP MST links
   - CMRR (Content Match Refresh Rate) enabling
   - Increase ADL-S/ADL-P/DG2+ max TMDS bitrate to 6 Gbps
   - Enable eDP AUX based HDR backlight
   - Support replaying GPU hangs with captured context image
   - Automate CCS Mode setting during engine resets
   - lots of refactoring
   - Support replaying GPU hangs with captured context image
   - Increase FLR timeout from 3s to 9s
   - Enable w/a 16021333562 for DG2, MTL and ARL [guc]

  xe:
   - update MAINATINERS
   - New uapi adding OA functionality to Xe
   - expose l3 bank mask
   - fix display detect on ADL-N
   - runtime PM Fixes
   - Fix silent backmerge issues
   - More prep for SR-IOV
   - HWmon additions
   - per client usage info
   - Rework GPU page fault handling
   - Drop EXEC_QUEUE_FLAG_BANNED
   - Add BMG PCI IDs
   - Scheduler fixes and improvements
   - Rename xe_exec_queue::compute to xe_exec_queue::lr
   - Use ttm_uncached for BO with NEEDS_UC flag
   - Rename xe perf layer as xe observation layer
   - lots of refactoring

  radeon:
   - Backlight workaround for iMac
   - Silence UBSAN flex array warnings

  msm:
   - Validate registers XML description against schema in CI
   - core/dpu: SM7150 support
   - mdp5: Add support for MSM8937
   - gpu: Add param for userspace to know if raytracing is supported
   - gpu: X185 support (aka gpu in X1 laptop chips)
   - gpu: a505 support

  ivpu:
   - hardware scheduler support
   - profiling support
   - improvements to the platform support layer
   - firmware handling improvements
   - clocks/power mgmt improvements
   - scheduler/logging improvements

  habanalabs:
   - Gradual sleep in polling memory macro
   - Reduce Gaudi2 MSI-X interrupt count to 128
   - Add Gaudi2-D revision support
   - Add timestamp to CPLD info
   - Gaudi2: Assume hard-reset by firmware upon MC SEI severe error
   - Align Gaudi2 interrupt names
   - Check for errors after preboot is ready
   - Change habanalabs maintainer and git repo path

  mgag200:
   - refactoring and improvements
   - Add BMC output
   - enable polling

  nouveau:
   - add registry command line

  v3d:
   - perf counters improvements

  zynqmp:
   - irq and debugfs improvements

  atmel-hlcdc:
   - Support XLCDC in sam9x7

  mipi-dbi:
   - Remove mipi_dbi_machine_little_endian
   - make SPI bits per word configurable
   - support RGB888
   - allow pixel formats to be specified in the DT

  sun4i:
   - Rework the blender setup for DE2

  panfrost:
   - Enable MT8188 support

  vc4:
   - Monochrome TV support

  exynos:
   - fix fallback mode regression
   - fix memory leak
   - Use drm_edid_duplicate() instead of kmemdup()

  etnaviv:
   - fix i.MX8MP NPU clock gating
   - workaround FE register cdc issues on some cores
   - fix DMA sync handling for cached buffers
   - fix job timeout handling
   - keep TS enabled on MMUv2 cores for improved performance

  mediatek:
   - Convert to platform remove callback returning void-
   - Drop chain_mode_fixup call in mode_valid()
   - Fixes the errors of MediaTek display driver found by IGT
   - Add display support for the MT8365-EVK board
   - Fix bit depth overwritten for mtk_ovl_set bit_depth()
   - Fix possible_crtcs calculation
   - Fix spurious kfree()

  ast:
   - refactor mode setting code

  stm:
   - Add LVDS support
   - DSI PHY updates"

* tag 'drm-next-2024-07-18' of https://gitlab.freedesktop.org/drm/kernel: (2501 commits)
  drm/amdgpu/mes12: add missing opcode string
  drm/amdgpu/mes11: update opcode strings
  Revert "drm/amd/display: Reset freesync config before update new state"
  drm/omap: Restrict compile testing to PAGE_SIZE less than 64KB
  drm/xe: Drop trace_xe_hw_fence_free
  drm/xe/uapi: Rename xe perf layer as xe observation layer
  drm/amdgpu: remove exp hw support check for gfx12
  drm/amdgpu: timely save bad pages to eeprom after gpu ras reset is completed
  drm/amdgpu: flush all cached ras bad pages to eeprom
  drm/amdgpu: select compute ME engines dynamically
  drm/amd/display: Allow display DCC for DCN401
  drm/amdgpu: select compute ME engines dynamically
  drm/amdgpu/job: Replace DRM_INFO/ERROR logging
  drm/amdgpu: select compute ME engines dynamically
  drm/amd/pm: Ignore initial value in smu response register
  drm/amdgpu: Initialize VF partition mode
  drm/amd/amdgpu: fix SDMA IRQ client ID <-> req mapping
  MAINTAINERS: fix Xinhui's name
  MAINTAINERS: update powerplay and swsmu
  drm/qxl: Pin buffer objects for internal mappings
  ...
 2024-07-18 09:34:02 -07:00
Günther Noack
f4b89d8ce5
landlock: Various documentation improvements 
* Fix some typos, incomplete or confusing phrases.
* Split paragraphs where appropriate.
* List the same error code multiple times,
  if it has multiple possible causes.
* Bring wording closer to the man page wording,
  which has undergone more thorough review
  (esp. for LANDLOCK_ACCESS_FS_WRITE_FILE).
* Small semantic clarifications
  * Call the ephemeral port range "ephemeral"
  * Clarify reasons for EFAULT in landlock_add_rule()
  * Clarify @rule_type doc for landlock_add_rule()

This is a collection of small fixes which I collected when preparing the
corresponding man pages [1].

Cc: Alejandro Colomar <alx@kernel.org>
Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Link: https://lore.kernel.org/r/20240715155554.2791018-1-gnoack@google.com [1]
Signed-off-by: Günther Noack <gnoack@google.com>
Link: https://lore.kernel.org/r/20240715160328.2792835-2-gnoack@google.com
[mic: Add label to link, fix formatting spotted by make htmldocs,
synchronize userspace-api documentation's date]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
 2024-07-18 08:27:47 +02:00
Linus Torvalds
b1bc554e00 media updates for v6.11-rc1 
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Merge tag 'media/v6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - New sensor drivers: gc05a2, gc08a3 and imx283

 - New serializer/deserializer drivers: max96714 and max96717

 - New JPEG encoder driver: e5010

 - Support for Raspberry Pi PiSP Backend (BE) ISP driver

 - Old documentation for av7110 driver removed, as a new version was
   added as Documentation/userspace-api/media/dvb/legacy*.rst

 - atompisp: Linux firmwares are now available, so drop firmware-related
   task from TODO and update firmware logic

 - The imx258 driver has gained several improvements

 - wave5 driver has gained support for HEVC decoding

 - em28xx gained support for MyGica UTV3

 - av7110 budget-patch driver removed

 - Lots of other cleanups, improvements and fixes

* tag 'media/v6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (301 commits)
  media: raspberrypi: Switch to remove_new
  media: uapi: pisp_be_config: Add extra config fields
  media: uapi: pisp_be_config: Re-sort pisp_be_tiles_config
  media: uapi: pisp_common: Capitalize all macros
  media: uapi: pisp_common: Add 32 bpp format test
  media: uapi: pisp_be_config: Drop BIT() from uAPI
  media: stm32: dcmipp: correct error handling in dcmipp_create_subdevs
  media: atomisp: Fix spelling mistakes in sh_css_sp.c
  media: atomisp: Fix spelling mistake in ia_css_debug.c
  media: atomisp: Fix spelling mistake in hmm_bo.c
  media: atomisp: Fix spelling mistake in ia_css_eed1_8.host.c
  media: atomisp: Fix spelling mistake in sh_css_internal.h
  media: atomisp: Fix spelling mistake "pipline" -> "pipeline"
  media: atomisp: Remove unused GPIO related defines and APIs
  media: atomisp: Replace COMPILATION_ERROR_IF() by static_assert()
  media: atomisp: Clean up unused macros from math_support.h
  media: atomisp: csi2-bridge: Add DMI quirk for OV5693 on Xiaomi Mipad2
  media: atomisp: Update TODO
  media: atomisp: Prefix firmware paths with "intel/ipu/"
  media: atomisp: Remove firmware_name module parameter
  ...
 2024-07-17 18:30:10 -07:00
Linus Torvalds
a1b547f0f2 for-6.11-tag 
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Merge tag 'for-6.11-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "The highlights are new logic behind background block group reclaim,
  automatic removal of qgroup after removing a subvolume and new
  'rescue=' mount options.

  The rest is optimizations, cleanups and refactoring.

  User visible features:

   - dynamic block group reclaim:
      - tunable framework to avoid situations where eager data
        allocations prevent creating new metadata chunks due to lack of
        unallocated space
      - reuse sysfs knob bg_reclaim_threshold (otherwise used only in
        zoned mode) for a fixed value threshold
      - new on/off sysfs knob "dynamic_reclaim" calculating the value
        based on heuristics, aiming to keep spare working space for
        relocating chunks but not to needlessly relocate partially
        utilized block groups or reclaim newly allocated ones
      - stats are exported in sysfs per block group type, files
        "reclaim_*"
      - this may increase IO load at unexpected times but the corner
        case of no allocatable block groups is known to be worse

   - automatically remove qgroup of deleted subvolumes:
      - adjust qgroup removal conditions, make sure all related
        subvolume data are already removed, or return EBUSY, also take
        into account setting of sysfs drop_subtree_threshold
      - also works in squota mode

   - mount option updates: new modes of 'rescue=' that allow to mount
     images (read-only) that could have been partially converted by user
     space tools
      - ignoremetacsums  - invalid metadata checksums are ignored
      - ignoresuperflags - super block flags that track conversion in
                           progress (like UUID or checksums)

  Core:

   - size of struct btrfs_inode is now below 1024 (on a release config),
     improved memory packing and other secondary effects

   - switch tracking of open inodes from rb-tree to xarray, minor
     performance improvement

   - reduce number of empty transaction commits when there are no dirty
     data/metadata

   - memory allocation optimizations (reduced numbers, reordering out of
     critical sections)

   - extent map structure optimizations and refactoring, more sanity
     checks

   - more subpage in zoned mode preparations or fixes

   - general snapshot code cleanups, improvements and documentation

   - tree-checker updates: more file extent ram_bytes fixes, continued

   - raid-stripe-tree update (not backward compatible):
      - remove extent encoding field from the structure, can be inferred
        from other information
      - requires btrfs-progs 6.9.1 or newer

   - cleanups and refactoring
      - error message updates
      - error handling improvements
      - return type and parameter cleanups and improvements"

* tag 'for-6.11-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (152 commits)
  btrfs: fix extent map use-after-free when adding pages to compressed bio
  btrfs: fix bitmap leak when loading free space cache on duplicate entry
  btrfs: remove the BUG_ON() inside extent_range_clear_dirty_for_io()
  btrfs: move extent_range_clear_dirty_for_io() into inode.c
  btrfs: enhance compression error messages
  btrfs: fix data race when accessing the last_trans field of a root
  btrfs: rename the extra_gfp parameter of btrfs_alloc_page_array()
  btrfs: remove the extra_gfp parameter from btrfs_alloc_folio_array()
  btrfs: introduce new "rescue=ignoresuperflags" mount option
  btrfs: introduce new "rescue=ignoremetacsums" mount option
  btrfs: output the unrecognized super block flags as hex
  btrfs: remove unused Opt enums
  btrfs: tree-checker: add extra ram_bytes and disk_num_bytes check
  btrfs: fix the ram_bytes assignment for truncated ordered extents
  btrfs: make validate_extent_map() catch ram_bytes mismatch
  btrfs: ignore incorrect btrfs_file_extent_item::ram_bytes
  btrfs: cleanup the bytenr usage inside btrfs_extent_item_to_extent_map()
  btrfs: fix typo in error message in btrfs_validate_super()
  btrfs: move the direct IO code into its own file
  btrfs: pass a btrfs_inode to btrfs_set_prop()
  ...
 2024-07-17 12:38:04 -07:00
Linus Torvalds
f097ef0e76 dlm for 6.11 
- New flag DLM_LSFL_SOFTIRQ_SAFE can be set by code using dlm
   to indicate callbacks can be run from softirq.
 - Change md-cluster to set DLM_LSFL_SOFTIRQ_SAFE.
 - Clean up for previous changes, e.g. unused code and parameters.
 - Remove custom pre-allocation of rsb structs which is unnecessary
   with kmem caches.
 - Change idr to xarray for lkb structs in use.
 - Change idr to xarray for rsb structs being recovered.
 - Change outdated naming related to internal rsb states.
 - Fix some incorrect add/remove of rsb on scan list.
 - Use rcu to free rsb structs.
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Merge tag 'dlm-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:

 - New flag DLM_LSFL_SOFTIRQ_SAFE can be set by code using dlm to
   indicate callbacks can be run from softirq

 - Change md-cluster to set DLM_LSFL_SOFTIRQ_SAFE

 - Clean up for previous changes, e.g. unused code and parameters

 - Remove custom pre-allocation of rsb structs which is unnecessary with
   kmem caches

 - Change idr to xarray for lkb structs in use

 - Change idr to xarray for rsb structs being recovered

 - Change outdated naming related to internal rsb states

 - Fix some incorrect add/remove of rsb on scan list

 - Use rcu to free rsb structs

* tag 'dlm-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  dlm: add rcu_barrier before destroy kmem cache
  dlm: remove DLM_LSFL_SOFTIRQ from exflags
  fs: dlm: remove unused struct 'dlm_processed_nodes'
  md-cluster: use DLM_LSFL_SOFTIRQ for dlm_new_lockspace()
  dlm: implement LSFL_SOFTIRQ_SAFE
  dlm: introduce DLM_LSFL_SOFTIRQ_SAFE
  dlm: use LSFL_FS to check for kernel lockspace
  dlm: use rcu to avoid an extra rsb struct lookup
  dlm: fix add_scan and del_scan usage
  dlm: change list and timer names
  dlm: move recover idr to xarray datastructure
  dlm: move lkb idr to xarray datastructure
  dlm: drop own rsb pre allocation mechanism
  dlm: remove ls_local_handle from struct dlm_ls
  dlm: remove unused parameter in dlm_midcomms_addr
  dlm: don't kref_init rsbs created for toss list
  dlm: remove scand leftovers
 2024-07-17 12:16:22 -07:00
Linus Torvalds
586a7a8542 NFSD 6.11 Release Notes 
This is a light release containing optimizations, code clean-ups,
 and minor bug fixes. This development cycle focused on work outside
 of upstream kernel development:
 
 1. Continuing to build upstream CI for NFSD based on kdevops
 2. Continuing to focus on the quality of NFSD in LTS kernels
 3. Participation in IETF nfsv4 WG discussions about NFSv4 ACLs,
    directory delegation, and NFSv4.2 COPY offload
 
 Notable features in v6.11 that were not pulled through the NFSD tree
 include NFS server-side support for the new pNFS NVMe layout type
 [RFC9561]. Functional testing for pNFS block layouts like this one
 has been introduced to our kdevops CI harness. Work on improving
 the resolution of file attribute time stamps in local filesystems
 is also ongoing tree-wide.
 
 As always I am grateful to NFSD contributors, reviewers, testers,
 and bug reporters who participated during this cycle.
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Merge tag 'nfsd-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
 "This is a light release containing optimizations, code clean-ups, and
  minor bug fixes.

  This development cycle focused on work outside of upstream kernel
  development:

   - Continuing to build upstream CI for NFSD based on kdevops

   - Continuing to focus on the quality of NFSD in LTS kernels

   - Participation in IETF nfsv4 WG discussions about NFSv4 ACLs,
     directory delegation, and NFSv4.2 COPY offload

  Notable features for v6.11 that do not come through the NFSD tree
  include NFS server-side support for the new pNFS NVMe layout type
  [RFC9561]. Functional testing for pNFS block layouts like this one has
  been introduced to our kdevops CI harness. Work on improving the
  resolution of file attribute time stamps in local filesystems is also
  ongoing tree-wide.

  As always I am grateful to NFSD contributors, reviewers, testers, and
  bug reporters who participated during this cycle"

* tag 'nfsd-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  nfsd: nfsd_file_lease_notifier_call gets a file_lease as an argument
  gss_krb5: Fix the error handling path for crypto_sync_skcipher_setkey
  MAINTAINERS: Add a bugzilla link for NFSD
  nfsd: new netlink ops to get/set server pool_mode
  sunrpc: refactor pool_mode setting code
  nfsd: allow passing in array of thread counts via netlink
  nfsd: make nfsd_svc take an array of thread counts
  sunrpc: fix up the special handling of sv_nrpools == 1
  SUNRPC: Add a trace point in svc_xprt_deferred_close
  NFSD: Support write delegations in LAYOUTGET
  lockd: Use *-y instead of *-objs in Makefile
  NFSD: Fix nfsdcld warning
  svcrdma: Handle ADDR_CHANGE CM event properly
  svcrdma: Refactor the creation of listener CMA ID
  NFSD: remove unused structs 'nfsd3_voidargs'
  NFSD: harden svcxdr_dupstr() and svcxdr_tmpalloc() against integer overflows
 2024-07-17 12:00:49 -07:00
Michael Roth
332d2c1d71 crypto: ccp: Add the SNP_VLEK_LOAD command 
When requesting an attestation report a guest is able to specify whether
it wants SNP firmware to sign the report using either a Versioned Chip
Endorsement Key (VCEK), which is derived from chip-unique secrets, or a
Versioned Loaded Endorsement Key (VLEK) which is obtained from an AMD
Key Derivation Service (KDS) and derived from seeds allocated to
enrolled cloud service providers (CSPs).

For VLEK keys, an SNP_VLEK_LOAD SNP firmware command is used to load
them into the system after obtaining them from the KDS. Add a
corresponding userspace interface so to allow the loading of VLEK keys
into the system.

See SEV-SNP Firmware ABI 1.54, SNP_VLEK_LOAD for more details.

Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Michael Roth <michael.roth@amd.com>
Message-ID: <20240501085210.2213060-21-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2024-07-17 12:46:26 -04:00
Linus Torvalds
51835949dd Networking changes for 6.11. Not much excitement - a handful of large 
patchsets (devmem among them) did not make it in time.
 
 Core & protocols
 ----------------
 
  - Use local_lock in addition to local_bh_disable() to protect per-CPU
    resources in networking, a step closer for local_bh_disable() not
    to act as a big lock on PREEMPT_RT.
 
  - Use flex array for netdevice priv area, ensure its cache alignment.
 
  - Add a sysctl knob to allow user to specify a default rto_min at socket
    init time. Bit of a big hammer but multiple companies were
    independently carrying such patch downstream so clearly it's useful.
 
  - Support scheduling transmission of packets based on CLOCK_TAI.
 
  - Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned off
    using cpusets.
 
  - Support multiple L2TPv3 UDP tunnels using the same 5-tuple address.
 
  - Allow configuration of multipath hash seed, to both allow synchronizing
    hashing of two routers, and preventing partial accidental sync.
 
  - Improve TCP compliance with RFC 9293 for simultaneous connect().
 
  - Support sending NAT keepalives in IPsec ESP in UDP states. Userspace
    IKE daemon had to do this before, but the kernel can better keep
    track of it.
 
  - Support sending supervision HSR frames with MAC addresses stored in
    ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled.
 
  - Introduce IPPROTO_SMC for selecting SMC when socket is created.
 
  - Allow UDP GSO transmit from devices with no checksum offload.
 
  - openvswitch: add packet sampling via psample, separating the sampled
    traffic from "upcall" packets sent to user space for forwarding.
 
  - nf_tables: shrink memory consumption for transaction objects.
 
 Things we sprinkled into general kernel code
 --------------------------------------------
 
  - Power Sequencing subsystem (used by Qualcomm Bluetooth driver
    for QCA6390).
 
  - Add IRQ information in sysfs for auxiliary bus.
 
  - Introduce guard definition for local_lock.
 
  - Add aligned flavor of __cacheline_group_{begin, end}() markings for
    grouping fields in structures.
 
 BPF
 ---
 
  - Notify user space (via epoll) when a struct_ops object is getting
    detached/unregistered.
 
  - Add new kfuncs for a generic, open-coded bits iterator.
 
  - Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
    bpf_list_head.
 
  - Support resilient split BTF which cuts down on duplication and makes
    BTF as compact as possible WRT BTF from modules.
 
  - Add support for dumping kfunc prototypes from BTF which enables both
    detecting as well as dumping compilable prototypes for kfuncs.
 
  - riscv64 BPF JIT improvements in particular to add 12-argument support
    for BPF trampolines and to utilize bpf_prog_pack for the latter.
 
  - Add the capability to offload the netfilter flowtable in XDP layer
    through kfuncs.
 
 Driver API
 ----------
 
  - Allow users to configure IRQ tresholds between which automatic IRQ
    moderation can choose.
 
  - Expand Power Sourcing (PoE) status with power, class and failure
    reason. Support setting power limits.
 
  - Track additional RSS contexts in the core, make sure configuration
    changes don't break them.
 
  - Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated ESP
    data paths.
 
  - Support updating firmware on SFP modules.
 
 Tests and tooling
 -----------------
 
  - mptcp: use net/lib.sh to manage netns.
 
  - TCP-AO and TCP-MD5: replace debug prints used by tests with
    tracepoints.
 
  - openvswitch: make test self-contained (don't depend on OvS CLI tools).
 
 Drivers
 -------
 
  - Ethernet high-speed NICs:
    - Broadcom (bnxt):
      - increase the max total outstanding PTP TX packets to 4
      - add timestamping statistics support
      - implement netdev_queue_mgmt_ops
      - support new RSS context API
    - Intel (100G, ice, idpf):
      - implement FEC statistics and dumping signal quality indicators
      - support E825C products (with 56Gbps PHYs)
    - nVidia/Mellanox:
      - support HW-GRO
      - mlx4/mlx5: support per-queue statistics via netlink
      - obey the max number of EQs setting in sub-functions
    - AMD/Solarflare:
      - support new RSS context API
    - AMD/Pensando:
      - ionic: rework fix for doorbell miss to lower overhead
        and skip it on new HW
    - Wangxun:
      - txgbe: support Flow Director perfect filters
 
  - Ethernet NICs consumer, embedded and virtual:
    - Add driver for Tehuti Networks TN40xx chips
    - Add driver for Meta's internal NIC chips
    - Add driver for Ethernet MAC on Airoha EN7581 SoCs
    - Add driver for Renesas Ethernet-TSN devices
    - Google cloud vNIC:
      - flow steering support
    - Microsoft vNIC:
      - support page sizes other than 4KB on ARM64
    - vmware vNIC:
      - support latency measurement (update to version 9)
    - VirtIO net:
      - support for Byte Queue Limits
      - support configuring thresholds for automatic IRQ moderation
      - support for AF_XDP Rx zero-copy
    - Synopsys (stmmac):
      - support for STM32MP13 SoC
      - let platforms select the right PCS implementation
    - TI:
      - icssg-prueth: add multicast filtering support
      - icssg-prueth: enable PTP timestamping and PPS
    - Renesas:
      - ravb: improve Rx performance 30-400% by using page pool,
        theaded NAPI and timer-based IRQ coalescing
      - ravb: add MII support for R-Car V4M
    - Cadence (macb):
      - macb: add ARP support to Wake-On-LAN
    - Cortina:
      - use phylib for RX and TX pause configuration
 
  - Ethernet switches:
    - nVidia/Mellanox:
      - support configuration of multipath hash seed
      - report more accurate max MTU
      - use page_pool to improve Rx performance
    - MediaTek:
      - mt7530: add support for bridge port isolation
    - Qualcomm:
      - qca8k: add support for bridge port isolation
    - Microchip:
      - lan9371/2: add 100BaseTX PHY support
    - NXP:
      - vsc73xx: implement VLAN operations
 
  - Ethernet PHYs:
    - aquantia: enable support for aqr115c
    - aquantia: add support for PHY LEDs
    - realtek: add support for rtl8224 2.5Gbps PHY
    - xpcs: add memory-mapped device support
    - add BroadR-Reach link mode and support in Broadcom's PHY driver
 
  - CAN:
    - add document for ISO 15765-2 protocol support
    - mcp251xfd: workaround for erratum DS80000789E, use timestamps
      to catch when device returns incorrect FIFO status
 
  - WiFi:
    - mac80211/cfg80211:
      - parse Transmit Power Envelope (TPE) data in mac80211 instead of
        in drivers
      - improvements for 6 GHz regulatory flexibility
      - multi-link improvements
      - support multiple radios per wiphy
      - remove DEAUTH_NEED_MGD_TX_PREP flag
    - Intel (iwlwifi):
      - bump FW API to 91 for BZ/SC devices
      - report 64-bit radiotap timestamp
      - enable P2P low latency by default
      - handle Transmit Power Envelope (TPE) advertised by AP
      - remove support for older FW for new devices
      - fast resume (keeping the device configured)
      - mvm: re-enable Multi-Link Operation (MLO)
      - aggregation (A-MSDU) optimizations
    - MediaTek (mt76):
      - mt7925 Multi-Link Operation (MLO) support
    - Qualcomm (ath10k):
      - LED support for various chipsets
    - Qualcomm (ath12k):
      - remove unsupported Tx monitor handling
      - support channel 2 in 6 GHz band
      - support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
      - supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
        Advertisements (EMA)
      - support dynamic VLAN
      - add panic handler for resetting the firmware state
      - DebugFS support for datapath statistics
      - WCN7850: support for Wake on WLAN
    - Microchip (wilc1000):
      - read MAC address during probe to make it visible to user space
      - suspend/resume improvements
    - TI (wl18xx):
      - support newer firmware versions
    - RealTek (rtw89):
      - preparation for RTL8852BE-VT support
      - Wake on WLAN support for WiFi 6 chips
      - 36-bit PCI DMA support
    - RealTek (rtlwifi):
      - RTL8192DU support
    - Broadcom (brcmfmac):
      - Management Frame Protection support (to enable WPA3)
 
  - Bluetooth:
    - qualcomm: use the power sequencer for QCA6390
    - btusb: mediatek: add ISO data transmission functions
    - hci_bcm4377: add BCM4388 support
    - btintel: add support for BlazarU core
    - btintel: add support for Whale Peak2
    - btnxpuart: add support for AW693 A1 chipset
    - btnxpuart: add support for IW615 chipset
    - btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Not much excitement - a handful of large patchsets (devmem among them)
  did not make it in time.

  Core & protocols:

   - Use local_lock in addition to local_bh_disable() to protect per-CPU
     resources in networking, a step closer for local_bh_disable() not
     to act as a big lock on PREEMPT_RT

   - Use flex array for netdevice priv area, ensure its cache alignment

   - Add a sysctl knob to allow user to specify a default rto_min at
     socket init time. Bit of a big hammer but multiple companies were
     independently carrying such patch downstream so clearly it's useful

   - Support scheduling transmission of packets based on CLOCK_TAI

   - Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned
     off using cpusets

   - Support multiple L2TPv3 UDP tunnels using the same 5-tuple address

   - Allow configuration of multipath hash seed, to both allow
     synchronizing hashing of two routers, and preventing partial
     accidental sync

   - Improve TCP compliance with RFC 9293 for simultaneous connect()

   - Support sending NAT keepalives in IPsec ESP in UDP states.
     Userspace IKE daemon had to do this before, but the kernel can
     better keep track of it

   - Support sending supervision HSR frames with MAC addresses stored in
     ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled

   - Introduce IPPROTO_SMC for selecting SMC when socket is created

   - Allow UDP GSO transmit from devices with no checksum offload

   - openvswitch: add packet sampling via psample, separating the
     sampled traffic from "upcall" packets sent to user space for
     forwarding

   - nf_tables: shrink memory consumption for transaction objects

  Things we sprinkled into general kernel code:

   - Power Sequencing subsystem (used by Qualcomm Bluetooth driver for
     QCA6390)           [ Already merged separately - Linus ]

   - Add IRQ information in sysfs for auxiliary bus

   - Introduce guard definition for local_lock

   - Add aligned flavor of __cacheline_group_{begin, end}() markings for
     grouping fields in structures

  BPF:

   - Notify user space (via epoll) when a struct_ops object is getting
     detached/unregistered

   - Add new kfuncs for a generic, open-coded bits iterator

   - Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
     bpf_list_head

   - Support resilient split BTF which cuts down on duplication and
     makes BTF as compact as possible WRT BTF from modules

   - Add support for dumping kfunc prototypes from BTF which enables
     both detecting as well as dumping compilable prototypes for kfuncs

   - riscv64 BPF JIT improvements in particular to add 12-argument
     support for BPF trampolines and to utilize bpf_prog_pack for the
     latter

   - Add the capability to offload the netfilter flowtable in XDP layer
     through kfuncs

  Driver API:

   - Allow users to configure IRQ tresholds between which automatic IRQ
     moderation can choose

   - Expand Power Sourcing (PoE) status with power, class and failure
     reason. Support setting power limits

   - Track additional RSS contexts in the core, make sure configuration
     changes don't break them

   - Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated
     ESP data paths

   - Support updating firmware on SFP modules

  Tests and tooling:

   - mptcp: use net/lib.sh to manage netns

   - TCP-AO and TCP-MD5: replace debug prints used by tests with
     tracepoints

   - openvswitch: make test self-contained (don't depend on OvS CLI
     tools)

  Drivers:

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - increase the max total outstanding PTP TX packets to 4
         - add timestamping statistics support
         - implement netdev_queue_mgmt_ops
         - support new RSS context API
      - Intel (100G, ice, idpf):
         - implement FEC statistics and dumping signal quality indicators
         - support E825C products (with 56Gbps PHYs)
      - nVidia/Mellanox:
         - support HW-GRO
         - mlx4/mlx5: support per-queue statistics via netlink
         - obey the max number of EQs setting in sub-functions
      - AMD/Solarflare:
         - support new RSS context API
      - AMD/Pensando:
         - ionic: rework fix for doorbell miss to lower overhead and
           skip it on new HW
      - Wangxun:
         - txgbe: support Flow Director perfect filters

   - Ethernet NICs consumer, embedded and virtual:
      - Add driver for Tehuti Networks TN40xx chips
      - Add driver for Meta's internal NIC chips
      - Add driver for Ethernet MAC on Airoha EN7581 SoCs
      - Add driver for Renesas Ethernet-TSN devices
      - Google cloud vNIC:
         - flow steering support
      - Microsoft vNIC:
         - support page sizes other than 4KB on ARM64
      - vmware vNIC:
         - support latency measurement (update to version 9)
      - VirtIO net:
         - support for Byte Queue Limits
         - support configuring thresholds for automatic IRQ moderation
         - support for AF_XDP Rx zero-copy
      - Synopsys (stmmac):
         - support for STM32MP13 SoC
         - let platforms select the right PCS implementation
      - TI:
         - icssg-prueth: add multicast filtering support
         - icssg-prueth: enable PTP timestamping and PPS
      - Renesas:
         - ravb: improve Rx performance 30-400% by using page pool,
           theaded NAPI and timer-based IRQ coalescing
         - ravb: add MII support for R-Car V4M
      - Cadence (macb):
         - macb: add ARP support to Wake-On-LAN
      - Cortina:
         - use phylib for RX and TX pause configuration

   - Ethernet switches:
      - nVidia/Mellanox:
         - support configuration of multipath hash seed
         - report more accurate max MTU
         - use page_pool to improve Rx performance
      - MediaTek:
         - mt7530: add support for bridge port isolation
      - Qualcomm:
         - qca8k: add support for bridge port isolation
      - Microchip:
         - lan9371/2: add 100BaseTX PHY support
      - NXP:
         - vsc73xx: implement VLAN operations

   - Ethernet PHYs:
      - aquantia: enable support for aqr115c
      - aquantia: add support for PHY LEDs
      - realtek: add support for rtl8224 2.5Gbps PHY
      - xpcs: add memory-mapped device support
      - add BroadR-Reach link mode and support in Broadcom's PHY driver

   - CAN:
      - add document for ISO 15765-2 protocol support
      - mcp251xfd: workaround for erratum DS80000789E, use timestamps to
        catch when device returns incorrect FIFO status

   - WiFi:
      - mac80211/cfg80211:
         - parse Transmit Power Envelope (TPE) data in mac80211 instead
           of in drivers
         - improvements for 6 GHz regulatory flexibility
         - multi-link improvements
         - support multiple radios per wiphy
         - remove DEAUTH_NEED_MGD_TX_PREP flag
      - Intel (iwlwifi):
         - bump FW API to 91 for BZ/SC devices
         - report 64-bit radiotap timestamp
         - enable P2P low latency by default
         - handle Transmit Power Envelope (TPE) advertised by AP
         - remove support for older FW for new devices
         - fast resume (keeping the device configured)
         - mvm: re-enable Multi-Link Operation (MLO)
         - aggregation (A-MSDU) optimizations
      - MediaTek (mt76):
         - mt7925 Multi-Link Operation (MLO) support
      - Qualcomm (ath10k):
         - LED support for various chipsets
      - Qualcomm (ath12k):
         - remove unsupported Tx monitor handling
         - support channel 2 in 6 GHz band
         - support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
         - supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
           Advertisements (EMA)
         - support dynamic VLAN
         - add panic handler for resetting the firmware state
         - DebugFS support for datapath statistics
         - WCN7850: support for Wake on WLAN
      - Microchip (wilc1000):
         - read MAC address during probe to make it visible to user space
         - suspend/resume improvements
      - TI (wl18xx):
         - support newer firmware versions
      - RealTek (rtw89):
         - preparation for RTL8852BE-VT support
         - Wake on WLAN support for WiFi 6 chips
         - 36-bit PCI DMA support
      - RealTek (rtlwifi):
         - RTL8192DU support
      - Broadcom (brcmfmac):
         - Management Frame Protection support (to enable WPA3)

   - Bluetooth:
      - qualcomm: use the power sequencer for QCA6390
      - btusb: mediatek: add ISO data transmission functions
      - hci_bcm4377: add BCM4388 support
      - btintel: add support for BlazarU core
      - btintel: add support for Whale Peak2
      - btnxpuart: add support for AW693 A1 chipset
      - btnxpuart: add support for IW615 chipset
      - btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591"

* tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits)
  eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering"
  tcp: Replace strncpy() with strscpy()
  wifi: ath12k: fix build vs old compiler
  tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child().
  eth: fbnic: Write the TCAM tables used for RSS control and Rx to host
  eth: fbnic: Add L2 address programming
  eth: fbnic: Add basic Rx handling
  eth: fbnic: Add basic Tx handling
  eth: fbnic: Add link detection
  eth: fbnic: Add initial messaging to notify FW of our presence
  eth: fbnic: Implement Rx queue alloc/start/stop/free
  eth: fbnic: Implement Tx queue alloc/start/stop/free
  eth: fbnic: Allocate a netdevice and napi vectors with queues
  eth: fbnic: Add FW communication mechanism
  eth: fbnic: Add message parsing for FW messages
  eth: fbnic: Add register init to set PCIe/Ethernet device config
  eth: fbnic: Allocate core device specific structures and devlink interface
  eth: fbnic: Add scaffolding for Meta's NIC driver
  PCI: Add Meta Platforms vendor ID
  net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK
  ...
 2024-07-16 19:28:34 -07:00
Linus Torvalds
576a997c63 Performance events changes for v6.11: 
- Intel PT support enhancements & fixes
  - Fix leaked SIGTRAP events
  - Improve and fix the Intel uncore driver
  - Add support for Intel HBM and CXL uncore counters
  - Add Intel Lake and Arrow Lake support
  - AMD uncore driver fixes
  - Make SIGTRAP and __perf_pending_irq() work on RT
  - Micro-optimizations
  - Misc cleanups and fixes
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2024-07-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull performance events updates from Ingo Molnar:

 - Intel PT support enhancements & fixes

 - Fix leaked SIGTRAP events

 - Improve and fix the Intel uncore driver

 - Add support for Intel HBM and CXL uncore counters

 - Add Intel Lake and Arrow Lake support

 - AMD uncore driver fixes

 - Make SIGTRAP and __perf_pending_irq() work on RT

 - Micro-optimizations

 - Misc cleanups and fixes

* tag 'perf-core-2024-07-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  perf/x86/intel: Add a distinct name for Granite Rapids
  perf/x86/intel/ds: Fix non 0 retire latency on Raptorlake
  perf/x86/intel: Hide Topdown metrics events if the feature is not enumerated
  perf/x86/intel/uncore: Fix the bits of the CHA extended umask for SPR
  perf: Split __perf_pending_irq() out of perf_pending_irq()
  perf: Don't disable preemption in perf_pending_task().
  perf: Move swevent_htable::recursion into task_struct.
  perf: Shrink the size of the recursion counter.
  perf: Enqueue SIGTRAP always via task_work.
  task_work: Add TWA_NMI_CURRENT as an additional notify mode.
  perf: Move irq_work_queue() where the event is prepared.
  perf: Fix event leak upon exec and file release
  perf: Fix event leak upon exit
  task_work: Introduce task_work_cancel() again
  task_work: s/task_work_cancel()/task_work_cancel_func()/
  perf/x86/amd/uncore: Fix DF and UMC domain identification
  perf/x86/amd/uncore: Avoid PMU registration if counters are unavailable
  perf/x86/intel: Support Perfmon MSRs aliasing
  perf/x86/intel: Support PERFEVTSEL extension
  perf/x86: Add config_mask to represent EVENTSEL bitmask
  ...
 2024-07-16 17:13:31 -07:00
Linus Torvalds
d80f2996b8 asm-generic updates for 6.11 
Most of this is part of my ongoing work to clean up the system call
 tables. In this bit, all of the newer architectures are converted to
 use the machine readable syscall.tbl format instead in place of complex
 macros in include/uapi/asm-generic/unistd.h.
 
 This follows an earlier series that fixed various API mismatches
 and in turn is used as the base for planned simplifications.
 
 The other two patches are dead code removal and a warning fix.
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Merge tag 'asm-generic-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "Most of this is part of my ongoing work to clean up the system call
  tables. In this bit, all of the newer architectures are converted to
  use the machine readable syscall.tbl format instead in place of
  complex macros in include/uapi/asm-generic/unistd.h.

  This follows an earlier series that fixed various API mismatches and
  in turn is used as the base for planned simplifications.

  The other two patches are dead code removal and a warning fix"

* tag 'asm-generic-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  vmlinux.lds.h: catch .bss..L* sections into BSS")
  fixmap: Remove unused set_fixmap_offset_io()
  riscv: convert to generic syscall table
  openrisc: convert to generic syscall table
  nios2: convert to generic syscall table
  loongarch: convert to generic syscall table
  hexagon: use new system call table
  csky: convert to generic syscall table
  arm64: rework compat syscall macros
  arm64: generate 64-bit syscall.tbl
  arm64: convert unistd_32.h to syscall.tbl format
  arc: convert to generic syscall table
  clone3: drop __ARCH_WANT_SYS_CLONE3 macro
  kbuild: add syscall table generation to scripts/Makefile.asm-headers
  kbuild: verify asm-generic header list
  loongarch: avoid generating extra header files
  um: don't generate asm/bpf_perf_event.h
  csky: drop asm/gpio.h wrapper
  syscalls: add generic scripts/syscall.tbl
 2024-07-16 12:09:03 -07:00
Linus Torvalds
99298eb615 m68k updates for v6.11 
- Fix bootup lock-ups on Warp1260, Atari TT, and MegaSTe,
   - Miscellaneous fixes and improvements,
   - Defconfig updates.
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Merge tag 'm68k-for-v6.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - Fix bootup lock-ups on Warp1260, Atari TT, and MegaSTe

 - Miscellaneous fixes and improvements

 - defconfig updates

* tag 'm68k-for-v6.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: cmpxchg: Fix return value for default case in __arch_xchg()
  m68k: defconfig: Update defconfigs for v6.10-rc1
  m68k: atari: Fix TT bootup freeze / unexpected (SCU) interrupt messages
  zorro: Use str_plural() in amiga_zorro_probe()
  m68k: emu: Add missing MODULE_DESCRIPTION() macros
  m68k: amiga: Turn off Warp1260 interrupts during boot
 2024-07-16 11:30:32 -07:00
Paolo Bonzini
bc9cd5a219 Merge branch 'kvm-6.11-sev-attestation' into HEAD 
The GHCB 2.0 specification defines 2 GHCB request types to allow SNP guests
to send encrypted messages/requests to firmware: SNP Guest Requests and SNP
Extended Guest Requests. These encrypted messages are used for things like
servicing attestation requests issued by the guest. Implementing support for
these is required to be fully GHCB-compliant.

For the most part, KVM only needs to handle forwarding these requests to
firmware (to be issued via the SNP_GUEST_REQUEST firmware command defined
in the SEV-SNP Firmware ABI), and then forwarding the encrypted response to
the guest.

However, in the case of SNP Extended Guest Requests, the host is also
able to provide the certificate data corresponding to the endorsement key
used by firmware to sign attestation report requests. This certificate data
is provided by userspace because:

  1) It allows for different keys/key types to be used for each particular
     guest with requiring any sort of KVM API to configure the certificate
     table in advance on a per-guest basis.

  2) It provides additional flexibility with how attestation requests might
     be handled during live migration where the certificate data for
     source/dest might be different.

  3) It allows all synchronization between certificates and firmware/signing
     key updates to be handled purely by userspace rather than requiring
     some in-kernel mechanism to facilitate it. [1]

To support fetching certificate data from userspace, a new KVM exit type will
be needed to handle fetching the certificate from userspace. An attempt to
define a new KVM_EXIT_COCO/KVM_EXIT_COCO_REQ_CERTS exit type to handle this
was introduced in v1 of this patchset, but is still being discussed by
community, so for now this patchset only implements a stub version of SNP
Extended Guest Requests that does not provide certificate data, but is still
enough to provide compliance with the GHCB 2.0 spec.
 2024-07-16 11:44:23 -04:00
Brijesh Singh
88caf544c9 KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event 
Version 2 of GHCB specification added support for the SNP Guest Request
Message NAE event. The event allows for an SEV-SNP guest to make
requests to the SEV-SNP firmware through the hypervisor using the
SNP_GUEST_REQUEST API defined in the SEV-SNP firmware specification.

This is used by guests primarily to request attestation reports from
firmware. There are other request types are available as well, but the
specifics of what guest requests are being made generally does not
affect how they are handled by the hypervisor, which only serves as a
proxy for the guest requests and firmware responses.

Implement handling for these events.

When an SNP Guest Request is issued, the guest will provide its own
request/response pages, which could in theory be passed along directly
to firmware. However, these pages would need special care:

  - Both pages are from shared guest memory, so they need to be
    protected from migration/etc. occurring while firmware reads/writes
    to them. At a minimum, this requires elevating the ref counts and
    potentially needing an explicit pinning of the memory. This places
    additional restrictions on what type of memory backends userspace
    can use for shared guest memory since there would be some reliance
    on using refcounted pages.

  - The response page needs to be switched to Firmware-owned state
    before the firmware can write to it, which can lead to potential
    host RMP #PFs if the guest is misbehaved and hands the host a
    guest page that KVM is writing to for other reasons (e.g. virtio
    buffers).

Both of these issues can be avoided completely by using
separately-allocated bounce pages for both the request/response pages
and passing those to firmware instead. So that's the approach taken
here.

Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Co-developed-by: Alexey Kardashevskiy <aik@amd.com>
Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
Co-developed-by: Ashish Kalra <ashish.kalra@amd.com>
Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
[mdr: ensure FW command failures are indicated to guest, drop extended
 request handling to be re-written as separate patch, massage commit]
Signed-off-by: Michael Roth <michael.roth@amd.com>
Message-ID: <20240701223148.3798365-2-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2024-07-16 11:44:00 -04:00
Günther Noack
33c97e7c03
landlock: Clarify documentation for struct landlock_ruleset_attr 
The explanation for @handled_access_fs and @handled_access_net has
significant overlap and is better explained together.

* Explain the commonalities in structure-level documentation.
* Clarify some wording and break up longer sentences.
* Put emphasis on the word "handled" to make it clearer that "handled"
  is a term with special meaning in the context of Landlock.

I'd like to transfer this wording into the man pages as well.

Signed-off-by: Günther Noack <gnoack@google.com>
Cc: Alejandro Colomar <alx@kernel.org>
Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Cc: linux-security-module@vger.kernel.org
Link: https://lore.kernel.org/r/20240711165456.2148590-2-gnoack@google.com
[mic: Format commit message]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
 2024-07-16 16:34:49 +02:00
Paolo Bonzini
5dcc1e7614 KVM x86 misc changes for 6.11 
- Add a global struct to consolidate tracking of host values, e.g. EFER, and
    move "shadow_phys_bits" into the structure as "maxphyaddr".
 
  - Add KVM_CAP_X86_APIC_BUS_CYCLES_NS to allow configuring the effective APIC
    bus frequency, because TDX.
 
  - Print the name of the APICv/AVIC inhibits in the relevant tracepoint.
 
  - Clean up KVM's handling of vendor specific emulation to consistently act on
    "compatible with Intel/AMD", versus checking for a specific vendor.
 
  - Misc cleanups
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Merge tag 'kvm-x86-misc-6.11' of https://github.com/kvm-x86/linux into HEAD

KVM x86 misc changes for 6.11

 - Add a global struct to consolidate tracking of host values, e.g. EFER, and
   move "shadow_phys_bits" into the structure as "maxphyaddr".

 - Add KVM_CAP_X86_APIC_BUS_CYCLES_NS to allow configuring the effective APIC
   bus frequency, because TDX.

 - Print the name of the APICv/AVIC inhibits in the relevant tracepoint.

 - Clean up KVM's handling of vendor specific emulation to consistently act on
   "compatible with Intel/AMD", versus checking for a specific vendor.

 - Misc cleanups
 2024-07-16 09:53:05 -04:00
Paolo Bonzini
86014c1e20 KVM generic changes for 6.11 
- Enable halt poll shrinking by default, as Intel found it to be a clear win.
 
  - Setup empty IRQ routing when creating a VM to avoid having to synchronize
    SRCU when creating a split IRQCHIP on x86.
 
  - Rework the sched_in/out() paths to replace kvm_arch_sched_in() with a flag
    that arch code can use for hooking both sched_in() and sched_out().
 
  - Take the vCPU @id as an "unsigned long" instead of "u32" to avoid
    truncating a bogus value from userspace, e.g. to help userspace detect bugs.
 
  - Mark a vCPU as preempted if and only if it's scheduled out while in the
    KVM_RUN loop, e.g. to avoid marking it preempted and thus writing guest
    memory when retrieving guest state during live migration blackout.
 
  - A few minor cleanups
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Merge tag 'kvm-x86-generic-6.11' of https://github.com/kvm-x86/linux into HEAD

KVM generic changes for 6.11

 - Enable halt poll shrinking by default, as Intel found it to be a clear win.

 - Setup empty IRQ routing when creating a VM to avoid having to synchronize
   SRCU when creating a split IRQCHIP on x86.

 - Rework the sched_in/out() paths to replace kvm_arch_sched_in() with a flag
   that arch code can use for hooking both sched_in() and sched_out().

 - Take the vCPU @id as an "unsigned long" instead of "u32" to avoid
   truncating a bogus value from userspace, e.g. to help userspace detect bugs.

 - Mark a vCPU as preempted if and only if it's scheduled out while in the
   KVM_RUN loop, e.g. to avoid marking it preempted and thus writing guest
   memory when retrieving guest state during live migration blackout.

 - A few minor cleanups
 2024-07-16 09:51:36 -04:00
Linus Torvalds
3e78198862 for-6.11/block-20240710 
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Merge tag 'for-6.11/block-20240710' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - NVMe updates via Keith:
     - Device initialization memory leak fixes (Keith)
     - More constants defined (Weiwen)
     - Target debugfs support (Hannes)
     - PCIe subsystem reset enhancements (Keith)
     - Queue-depth multipath policy (Redhat and PureStorage)
     - Implement get_unique_id (Christoph)
     - Authentication error fixes (Gaosheng)

 - MD updates via Song
     - sync_action fix and refactoring (Yu Kuai)
     - Various small fixes (Christoph Hellwig, Li Nan, and Ofir Gal, Yu
       Kuai, Benjamin Marzinski, Christophe JAILLET, Yang Li)

 - Fix loop detach/open race (Gulam)

 - Fix lower control limit for blk-throttle (Yu)

 - Add module descriptions to various drivers (Jeff)

 - Add support for atomic writes for block devices, and statx reporting
   for same. Includes SCSI and NVMe (John, Prasad, Alan)

 - Add IO priority information to block trace points (Dongliang)

 - Various zone improvements and tweaks (Damien)

 - mq-deadline tag reservation improvements (Bart)

 - Ignore direct reclaim swap writes in writeback throttling (Baokun)

 - Block integrity improvements and fixes (Anuj)

 - Add basic support for rust based block drivers. Has a dummy null_blk
   variant for now (Andreas)

 - Series converting driver settings to queue limits, and cleanups and
   fixes related to that (Christoph)

 - Cleanup for poking too deeply into the bvec internals, in preparation
   for DMA mapping API changes (Christoph)

 - Various minor tweaks and fixes (Jiapeng, John, Kanchan, Mikulas,
   Ming, Zhu, Damien, Christophe, Chaitanya)

* tag 'for-6.11/block-20240710' of git://git.kernel.dk/linux: (206 commits)
  floppy: add missing MODULE_DESCRIPTION() macro
  loop: add missing MODULE_DESCRIPTION() macro
  ublk_drv: add missing MODULE_DESCRIPTION() macro
  xen/blkback: add missing MODULE_DESCRIPTION() macro
  block/rnbd: Constify struct kobj_type
  block: take offset into account in blk_bvec_map_sg again
  block: fix get_max_segment_size() warning
  loop: Don't bother validating blocksize
  virtio_blk: Don't bother validating blocksize
  null_blk: Don't bother validating blocksize
  block: Validate logical block size in blk_validate_limits()
  virtio_blk: Fix default logical block size fallback
  nvmet-auth: fix nvmet_auth hash error handling
  nvme: implement ->get_unique_id
  block: pass a phys_addr_t to get_max_segment_size
  block: add a bvec_phys helper
  blk-lib: check for kill signal in ioctl BLKZEROOUT
  block: limit the Write Zeroes to manually writing zeroes fallback
  block: refacto blkdev_issue_zeroout
  block: move read-only and supported checks into (__)blkdev_issue_zeroout
  ...
 2024-07-15 14:20:22 -07:00
Linus Torvalds
3a56e24173 for-6.11/io_uring-20240714 
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Merge tag 'for-6.11/io_uring-20240714' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:
 "Here are the io_uring updates queued up for 6.11.

  Nothing major this time around, various minor improvements and
  cleanups/fixes. This contains:

   - Add bind/listen opcodes. Main motivation is to support direct
     descriptors, to avoid needing a regular fd just for doing these two
     operations (Gabriel)

   - Probe fixes (Gabriel)

   - Treat io-wq work flags as atomics. Not fixing a real issue, but may
     as well and it silences a KCSAN warning (me)

   - Cleanup of rsrc __set_current_state() usage (me)

   - Add 64-bit for {m,f}advise operations (me)

   - Improve performance of data ring messages (me)

   - Fix for ring message overflow posting (Pavel)

   - Fix for freezer interaction with TWA_NOTIFY_SIGNAL. Not strictly an
     io_uring thing, but since TWA_NOTIFY_SIGNAL was originally added
     for faster task_work signaling for io_uring, bundling it with this
     pull (Pavel)

   - Add Pavel as a co-maintainer

   - Various cleanups (me, Thorsten)"

* tag 'for-6.11/io_uring-20240714' of git://git.kernel.dk/linux: (28 commits)
  io_uring/net: check socket is valid in io_bind()/io_listen()
  kernel: rerun task_work while freezing in get_signal()
  io_uring/io-wq: limit retrying worker initialisation
  io_uring/napi: Remove unnecessary s64 cast
  io_uring/net: cleanup io_recv_finish() bundle handling
  io_uring/msg_ring: fix overflow posting
  MAINTAINERS: change Pavel Begunkov from io_uring reviewer to maintainer
  io_uring/msg_ring: use kmem_cache_free() to free request
  io_uring/msg_ring: check for dead submitter task
  io_uring/msg_ring: add an alloc cache for io_kiocb entries
  io_uring/msg_ring: improve handling of target CQE posting
  io_uring: add io_add_aux_cqe() helper
  io_uring: add remote task_work execution helper
  io_uring/msg_ring: tighten requirement for remote posting
  io_uring: Allocate only necessary memory in io_probe
  io_uring: Fix probe of disabled operations
  io_uring: Introduce IORING_OP_LISTEN
  io_uring: Introduce IORING_OP_BIND
  net: Split a __sys_listen helper for io_uring
  net: Split a __sys_bind helper for io_uring
  ...
 2024-07-15 13:49:10 -07:00
Linus Torvalds
98f3a9a4fd vfs-6.11.pidfs 
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Merge tag 'vfs-6.11.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull pidfs updates from Christian Brauner:
 "This contains work to make it possible to derive namespace file
  descriptors from pidfd file descriptors.

  Right now it is already possible to use a pidfd with setns() to
  atomically change multiple namespaces at the same time. In other
  words, it is possible to switch to the namespace context of a process
  using a pidfd. There is no need to first open namespace file
  descriptors via procfs.

  The work included here is an extension of these abilities by allowing
  to open namespace file descriptors using a pidfd. This means it is now
  possible to interact with namespaces without ever touching procfs.

  To this end a new set of ioctls() on pidfds is introduced covering all
  supported namespace types"

* tag 'vfs-6.11.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  pidfs: allow retrieval of namespace file descriptors
  nsfs: add open_namespace()
  nsproxy: add helper to go from arbitrary namespace to ns_common
  nsproxy: add a cleanup helper for nsproxy
  file: add take_fd() cleanup helper
 2024-07-15 12:34:01 -07:00
Linus Torvalds
1b074abe88 vfs-6.11.nsfs 
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Merge tag 'vfs-6.11.nsfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull namespace-fs updates from Christian Brauner:
 "This adds ioctls allowing to translate PIDs between PID namespaces.

  The motivating use-case comes from LXCFS which is a tiny fuse
  filesystem used to virtualize various aspects of procfs. LXCFS is run
  on the host. The files and directories it creates can be bind-mounted
  by e.g. a container at startup and mounted over the various procfs
  files the container wishes to have virtualized.

  When e.g. a read request for uptime is received, LXCFS will receive
  the pid of the reader. In order to virtualize the corresponding read,
  LXCFS needs to know the pid of the init process of the reader's pid
  namespace.

  In order to do this, LXCFS first needs to fork() two helper processes.
  The first helper process setns() to the readers pid namespace. The
  second helper process is needed to create a process that is a proper
  member of the pid namespace.

  The second helper process then creates a ucred message with ucred.pid
  set to 1 and sends it back to LXCFS. The kernel will translate the
  ucred.pid field to the corresponding pid number in LXCFS's pid
  namespace. This way LXCFS can learn the init pid number of the
  reader's pid namespace and can go on to virtualize.

  Since these two forks() are costly LXCFS maintains an init pid cache
  that caches a given pid for a fixed amount of time. The cache is
  pruned during new read requests. However, even with the cache the hit
  of the two forks() is singificant when a very large number of
  containers are running.

  So this adds a simple set of ioctls that let's a caller translate PIDs
  from and into a given PID namespace. This significantly improves
  performance with a very simple change.

  To protect against races pidfds can be used to check whether the
  process is still valid"

* tag 'vfs-6.11.nsfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  nsfs: add pid translation ioctls
 2024-07-15 12:27:39 -07:00
Linus Torvalds
f608cabaed vfs-6.11.mount 
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Merge tag 'vfs-6.11.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs mount query updates from Christian Brauner:
 "This contains work to extend the abilities of listmount() and
  statmount() and various fixes and cleanups.

  Features:

   - Allow iterating through mounts via listmount() from newest to
     oldest. This makes it possible for mount(8) to keep iterating the
     mount table in reverse order so it gets newest mounts first.

   - Relax permissions on listmount() and statmount().

     It's not necessary to have capabilities in the initial namespace:
     it is sufficient to have capabilities in the owning namespace of
     the mount namespace we're located in to list unreachable mounts in
     that namespace.

   - Extend both listmount() and statmount() to list and stat mounts in
     foreign mount namespaces.

     Currently the only way to iterate over mount entries in mount
     namespaces that aren't in the caller's mount namespace is by
     crawling through /proc in order to find /proc/<pid>/mountinfo for
     the relevant mount namespace.

     This is both very clumsy and hugely inefficient. So extend struct
     mnt_id_req with a new member that allows to specify the mount
     namespace id of the mount namespace we want to look at.

     Luckily internally we already have most of the infrastructure for
     this so we just need to expose it to userspace. Give userspace a
     way to retrieve the id of a mount namespace via statmount() and
     through a new nsfs ioctl() on mount namespace file descriptor.

     This comes with appropriate selftests.

   - Expose mount options through statmount().

     Currently if userspace wants to get mount options for a mount and
     with statmount(), they still have to open /proc/<pid>/mountinfo to
     parse mount options. Simply the information through statmount()
     directly.

     Afterwards it's possible to only rely on statmount() and
     listmount() to retrieve all and more information than
     /proc/<pid>/mountinfo provides.

     This comes with appropriate selftests.

  Fixes:

   - Avoid copying to userspace under the namespace semaphore in
     listmount.

  Cleanups:

   - Simplify the error handling in listmount by relying on our newly
     added cleanup infrastructure.

   - Refuse invalid mount ids early for both listmount and statmount"

* tag 'vfs-6.11.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fs: reject invalid last mount id early
  fs: refuse mnt id requests with invalid ids early
  fs: find rootfs mount of the mount namespace
  fs: only copy to userspace on success in listmount()
  sefltests: extend the statmount test for mount options
  fs: use guard for namespace_sem in statmount()
  fs: export mount options via statmount()
  fs: rename show_mnt_opts -> show_vfsmnt_opts
  selftests: add a test for the foreign mnt ns extensions
  fs: add an ioctl to get the mnt ns id from nsfs
  fs: Allow statmount() in foreign mount namespace
  fs: Allow listmount() in foreign mount namespace
  fs: export the mount ns id via statmount
  fs: keep an index of current mount namespaces
  fs: relax permissions for statmount()
  listmount: allow listing in reverse order
  fs: relax permissions for listmount()
  fs: simplify error handling
  fs: don't copy to userspace under namespace semaphore
  path: add cleanup helper
 2024-07-15 11:54:04 -07:00
Linus Torvalds
2ffd45da0b drm fixes for 6.10-rc8 
amdgpu:
 - PSR-SU fix
 - Reseved VMID fix
 
 xe:
 - Use write-back caching mode for system memory on DGFX
 - Do not leak object when finalizing hdcp gsc
 
 bridge:
 - adv7511 EDID irq fix
 
 gma500:
 - NULL mode fixes.
 
 meson:
 - fix resource leak
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Merge tag 'drm-fixes-2024-07-12' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Oh I screwed up last week's fixes pull, and forgot to send..

  Back to work, thanks to Sima for last week, not too many fixes as
  expected getting close to release [ sic - Linus ], amdgpu and xe have
  a couple each, and then some other misc ones.

  amdgpu:
   - PSR-SU fix
   - Reseved VMID fix

  xe:
   - Use write-back caching mode for system memory on DGFX
   - Do not leak object when finalizing hdcp gsc

  bridge:
   - adv7511 EDID irq fix

  gma500:
   - NULL mode fixes.

  meson:
   - fix resource leak"

* tag 'drm-fixes-2024-07-12' of https://gitlab.freedesktop.org/drm/kernel:
  Revert "drm/amd/display: Reset freesync config before update new state"
  drm/xe/display/xe_hdcp_gsc: Free arbiter on driver removal
  drm/xe: Use write-back caching mode for system memory on DGFX
  drm/amdgpu: reject gang submit on reserved VMIDs
  drm/gma500: fix null pointer dereference in cdv_intel_lvds_get_modes
  drm/gma500: fix null pointer dereference in psb_intel_lvds_get_modes
  drm/meson: fix canvas release in bind function
  drm/bridge: adv7511: Fix Intermittent EDID failures
 2024-07-15 10:07:31 -07:00
Asbjørn Sloth Tønnesen
11036bd7a0 net/sched: cls_flower: rework TCA_FLOWER_KEY_ENC_FLAGS usage 
This patch changes how TCA_FLOWER_KEY_ENC_FLAGS is used, so that
it is used with TCA_FLOWER_KEY_FLAGS_* flags, in the same way as
TCA_FLOWER_KEY_FLAGS is currently used.

Where TCA_FLOWER_KEY_FLAGS uses {key,mask}->control.flags, then
TCA_FLOWER_KEY_ENC_FLAGS now uses {key,mask}->enc_control.flags,
therefore {key,mask}->enc_flags is now unused.

As the generic fl_set_key_flags/fl_dump_key_flags() is used with
encap set to true, then fl_{set,dump}_key_enc_flags() is removed.

This breaks unreleased userspace API (net-next since 2024-06-04).

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Tested-by: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Link: https://patch.msgid.link/20240713021911.1631517-10-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-07-15 09:14:38 -07:00
Asbjørn Sloth Tønnesen
bfda5a6313 net/sched: flower: define new tunnel flags 
Define new TCA_FLOWER_KEY_FLAGS_* flags for use in struct
flow_dissector_key_control, covering the same flags as
currently exposed through TCA_FLOWER_KEY_ENC_FLAGS.

Put the new flags under FLOW_DIS_F_*. The idea is that we can
later, move the existing flags under FLOW_DIS_F_* as well.

The ynl flag names have been taken from the RFC iproute2 patch.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20240713021911.1631517-4-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-07-15 09:14:38 -07:00
Asbjørn Sloth Tønnesen
6e5c85c003 net/sched: flower: refactor control flag definitions 
Redefine the flower control flags as an enum, so they are
included in BTF info.

Make the kernel-side enum a more explicit superset of
TCA_FLOWER_KEY_FLAGS_*, new flags still need to be added to
both enums, but at least the bit position only has to be
defined once.

FLOW_DIS_ENCAPSULATION is never set for mask, so it can't be
exposed to userspace in an unsupported flags mask error message,
so it will be placed one bit position above the last uAPI flag.

Suggested-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Link: https://patch.msgid.link/20240713021911.1631517-2-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-07-15 09:14:37 -07:00
Takashi Iwai
97b10a77b1 ASoC: Updates for for v6.11 
There are a lot of changes in here, though the big bulk of things is
 cleanups and simplifications of various kinds which are internally
 rather than externally visible.  A good chunk of those are DT schema
 conversions, but there's also a lot of changes in the code.
 
 Highlights:
 
  - Syncing of features between simple-audio-card and the two
    audio-graph cards so there is no reason to stick with an older
    driver.
  - Support for specifying the order of operations for components within
    cards to allow quirking for unusual systems.
  - New support for Asahi Kasei AK4619, Cirrus Logic CS530x, Everest
    Semiconductors ES8311, NXP i.MX95 and LPC32xx, Qualcomm LPASS v2.5
    and WCD937x, Realtek RT1318 and RT1320 and Texas Instruments PCM5242.
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Merge tag 'asoc-v6.11' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for for v6.11

There are a lot of changes in here, though the big bulk of things is
cleanups and simplifications of various kinds which are internally
rather than externally visible.  A good chunk of those are DT schema
conversions, but there's also a lot of changes in the code.

Highlights:

 - Syncing of features between simple-audio-card and the two
   audio-graph cards so there is no reason to stick with an older
   driver.
 - Support for specifying the order of operations for components within
   cards to allow quirking for unusual systems.
 - New support for Asahi Kasei AK4619, Cirrus Logic CS530x, Everest
   Semiconductors ES8311, NXP i.MX95 and LPC32xx, Qualcomm LPASS v2.5
   and WCD937x, Realtek RT1318 and RT1320 and Texas Instruments PCM5242.
 2024-07-15 16:31:00 +02:00
Jason Gunthorpe
136a806667 iommufd: Put constants for all the uAPI enums 
Relying on position in the enum makes it subtly harder when doing merge
resolutions or backporting as it is easy to grab a patch and not notice it
is a uAPI change with a differently ordered enum. This may become a bigger
problem in next cycles when iommu_hwpt_invalidate_data_type and other
per-driver enums have patches flowing through different trees.

So lets start including constants for all the uAPI enums to make this
safer.

No functional change.

Link: https://lore.kernel.org/r/0-v1-2c06ec044924+133-iommufd_uapi_const_jgg@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Tested-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2024-07-15 09:44:54 -03:00
Kamil Horák (2N)
2c1583290b net: phy: bcm54811: New link mode for BroadR-Reach 
Introduce a new link mode necessary for 10 MBit single-pair
connection in BroadR-Reach mode on bcm5481x PHY by Broadcom.
This new link mode, 10baseT1BRR, is known as 1BR10 in the Broadcom
terminology. Another link mode to be used is 1BR100 and it is already
present as 100baseT1, because Broadcom's 1BR100 became 100baseT1
(IEEE 802.3bw).

Signed-off-by: Kamil Horák (2N) <kamilh@axis.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20240712150709.3134474-2-kamilh@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-07-14 20:38:34 -07:00
Jakub Kicinski
62fdd1708f ipsec-next-2024-07-13 
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Merge tag 'ipsec-next-2024-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next

Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2024-07-13

1) Support sending NAT keepalives in ESP in UDP states.
   Userspace IKE daemon had to do this before, but the
   kernel can better keep track of it.
   From Eyal Birger.

2) Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated
   ESP data paths. Currently, IPsec crypto offload is enabled for GRO
   code path only. This patchset support UDP encapsulation for the non
   GRO path. From Mike Yu.

* tag 'ipsec-next-2024-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next:
  xfrm: Support crypto offload for outbound IPv4 UDP-encapsulated ESP packet
  xfrm: Support crypto offload for inbound IPv4 UDP-encapsulated ESP packet
  xfrm: Allow UDP encapsulation in crypto offload control path
  xfrm: Support crypto offload for inbound IPv6 ESP packets not in GRO path
  xfrm: support sending NAT keepalives in ESP in UDP states
====================

Link: https://patch.msgid.link/20240713102416.3272997-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-07-14 07:56:32 -07:00
Jakub Kicinski
e5abd12f3d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Cross-merge networking fixes after downstream PR.

Conflicts:

drivers/net/ethernet/broadcom/bnxt/bnxt.c
  f7ce5eb2cb ("bnxt_en: Fix crash in bnxt_get_max_rss_ctx_ring()")
  20c8ad72eb ("eth: bnxt: use the RSS context XArray instead of the local list")

Adjacent changes:

net/ethtool/ioctl.c
  503757c809 ("net: ethtool: Fix RSS setting")
  eac9122f0c ("net: ethtool: record custom RSS contexts in the XArray")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-07-12 22:20:30 -07:00
Andrii Nakryiko
bfc69fd05e fs/procfs: add build ID fetching to PROCMAP_QUERY API 
The need to get ELF build ID reliably is an important aspect when dealing
with profiling and stack trace symbolization, and /proc/<pid>/maps textual
representation doesn't help with this.

To get backing file's ELF build ID, application has to first resolve VMA,
then use it's start/end address range to follow a special
/proc/<pid>/map_files/<start>-<end> symlink to open the ELF file (this is
necessary because backing file might have been removed from the disk or
was already replaced with another binary in the same file path.

Such approach, beyond just adding complexity of having to do a bunch of
extra work, has extra security implications.  Because application opens
underlying ELF file and needs read access to its entire contents (as far
as kernel is concerned), kernel puts additional capable() checks on
following /proc/<pid>/map_files/<start>-<end> symlink.  And that makes
sense in general.

But in the case of build ID, profiler/symbolizer doesn't need the contents
of ELF file, per se.  It's only build ID that is of interest, and ELF
build ID itself doesn't provide any sensitive information.

So this patch adds a way to request backing file's ELF build ID along the
rest of VMA information in the same API.  User has control over whether
this piece of information is requested or not by either setting
build_id_size field to zero or non-zero maximum buffer size they provided
through build_id_addr field (which encodes user pointer as __u64 field). 
This is a completely optional piece of information, and so has no
performance implications for user cases that don't care about build ID,
while improving performance and simplifying the setup for those
application that do need it.

Kernel already implements build ID fetching, which is used from BPF
subsystem.  We are reusing this code here, but plan a follow up changes to
make it work better under more relaxed assumption (compared to what
existing code assumes) of being called from user process context, in which
page faults are allowed.  BPF-specific implementation currently bails out
if necessary part of ELF file is not paged in, all due to extra
BPF-specific restrictions (like the need to fetch build ID in restrictive
contexts such as NMI handler).

[andrii@kernel.org: fix integer to pointer cast warning in do_procmap_query()]
  Link: https://lkml.kernel.org/r/20240701174805.1897344-1-andrii@kernel.org
Link: https://lkml.kernel.org/r/20240627170900.1672542-4-andrii@kernel.org
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2024-07-12 15:52:12 -07:00
Andrii Nakryiko
ed5d583a88 fs/procfs: implement efficient VMA querying API for /proc/<pid>/maps 
/proc/<pid>/maps file is extremely useful in practice for various tasks
involving figuring out process memory layout, what files are backing any
given memory range, etc.  One important class of applications that
absolutely rely on this are profilers/stack symbolizers (perf tool being
one of them).  Patterns of use differ, but they generally would fall into
two categories.

In on-demand pattern, a profiler/symbolizer would normally capture stack
trace containing absolute memory addresses of some functions, and would
then use /proc/<pid>/maps file to find corresponding backing ELF files
(normally, only executable VMAs are of interest), file offsets within
them, and then continue from there to get yet more information (ELF
symbols, DWARF information) to get human-readable symbolic information. 
This pattern is used by Meta's fleet-wide profiler, as one example.

In preprocessing pattern, application doesn't know the set of addresses of
interest, so it has to fetch all relevant VMAs (again, probably only
executable ones), store or cache them, then proceed with profiling and
stack trace capture.  Once done, it would do symbolization based on stored
VMA information.  This can happen at much later point in time.  This
patterns is used by perf tool, as an example.

In either case, there are both performance and correctness requirement
involved.  This address to VMA information translation has to be done as
efficiently as possible, but also not miss any VMA (especially in the case
of loading/unloading shared libraries).  In practice, correctness can't be
guaranteed (due to process dying before VMA data can be captured, or
shared library being unloaded, etc), but any effort to maximize the chance
of finding the VMA is appreciated.

Unfortunately, for all the /proc/<pid>/maps file universality and
usefulness, it doesn't fit the above use cases 100%.

First, it's main purpose is to emit all VMAs sequentially, but in practice
captured addresses would fall only into a smaller subset of all process'
VMAs, mainly containing executable text.  Yet, library would need to parse
most or all of the contents to find needed VMAs, as there is no way to
skip VMAs that are of no use.  Efficient library can do the linear pass
and it is still relatively efficient, but it's definitely an overhead that
can be avoided, if there was a way to do more targeted querying of the
relevant VMA information.

Second, it's a text based interface, which makes its programmatic use from
applications and libraries more cumbersome and inefficient due to the need
to handle text parsing to get necessary pieces of information.  The
overhead is actually payed both by kernel, formatting originally binary
VMA data into text, and then by user space application, parsing it back
into binary data for further use.

For the on-demand pattern of usage, described above, another problem when
writing generic stack trace symbolization library is an unfortunate
performance-vs-correctness tradeoff that needs to be made.  Library has to
make a decision to either cache parsed contents of /proc/<pid>/maps (after
initial processing) to service future requests (if application requests to
symbolize another set of addresses (for the same process), captured at
some later time, which is typical for periodic/continuous profiling cases)
to avoid higher costs of re-parsing this file.  Or it has to choose to
cache the contents in memory to speed up future requests.  In the former
case, more memory is used for the cache and there is a risk of getting
stale data if application loads or unloads shared libraries, or otherwise
changed its set of VMAs somehow, e.g., through additional mmap() calls. 
In the latter case, it's the performance hit that comes from re-opening
the file and re-parsing its contents all over again.

This patch aims to solve this problem by providing a new API built on top
of /proc/<pid>/maps.  It's meant to address both non-selectiveness and
text nature of /proc/<pid>/maps, by giving user more control of what sort
of VMA(s) needs to be queried, and being binary-based interface eliminates
the overhead of text formatting (on kernel side) and parsing (on user
space side).

It's also designed to be extensible and forward/backward compatible by
including required struct size field, which user has to provide.  We use
established copy_struct_from_user() approach to handle extensibility.

User has a choice to pick either getting VMA that covers provided address
or -ENOENT if none is found (exact, least surprising, case).  Or, with an
extra query flag (PROCMAP_QUERY_COVERING_OR_NEXT_VMA), they can get either
VMA that covers the address (if there is one), or the closest next VMA
(i.e., VMA with the smallest vm_start > addr).  The latter allows more
efficient use, but, given it could be a surprising behavior, requires an
explicit opt-in.

There is another query flag that is useful for some use cases. 
PROCMAP_QUERY_FILE_BACKED_VMA instructs this API to only return
file-backed VMAs.  Combining this with PROCMAP_QUERY_COVERING_OR_NEXT_VMA
makes it possible to efficiently iterate only file-backed VMAs of the
process, which is what profilers/symbolizers are normally interested in.

All the above querying flags can be combined with (also optional) set of
desired VMA permissions flags.  This allows to, for example, iterate only
an executable subset of VMAs, which is what preprocessing pattern, used by
perf tool, would benefit from, as the assumption is that captured stack
traces would have addresses of executable code.  This saves time by
skipping non-executable VMAs altogether efficienty.

All these querying flags (modifiers) are orthogonal and can be combined in
a semantically meaningful and natural way.

Basing this ioctl()-based API on top of /proc/<pid>/maps's FD makes sense
given it's querying the same set of VMA data.  It's also benefitial
because permission checks for /proc/<pid>/maps is performed at open time
once, and the actual data read of text contents of /proc/<pid>/maps is
done without further permission checks.  We piggyback on this pattern with
ioctl()-based API as well, as that's a desired property.  Both for
performance reasons, but also for security and flexibility reasons.

Allowing application to open an FD for /proc/self/maps without any extra
capabilities, and then passing it to some sort of profiling agent through
Unix-domain socket, would allow such profiling agent to not require some
of the capabilities that are otherwise expected when opening
/proc/<pid>/maps file for *another* process.  This is a desirable property
for some more restricted setups.

This new ioctl-based implementation doesn't interfere with seq_file-based
implementation of /proc/<pid>/maps textual interface, and so could be used
together or independently without paying any price for that.

Note also, that fetching VMA name (e.g., backing file path, or special
hard-coded or user-provided names) is optional just like build ID.  If
user sets vma_name_size to zero, kernel code won't attempt to retrieve it,
saving resources.

Earlier versions of this patch set were adding per-VMA locking, which is
why we have a code structure that is ready for abstracting mmap_lock vs
vm_lock differences (query_vma_setup(), query_vma_teardown(), and
query_vma_find_by_addr()), but given anon_vma_name() is not yet compatible
with per-VMA locking, initial implementation sticks to using only
mmap_lock for now.  It will be easy to add back per-VMA locking once all
the pieces are ready later on.  Which is why we keep existing code
structure with setup/teardown/query helper functions.

[andrii@kernel.org: improve PROCMAP_QUERY's compat mode handling]
  Link: https://lkml.kernel.org/r/20240701174805.1897344-2-andrii@kernel.org
Link: https://lkml.kernel.org/r/20240627170900.1672542-3-andrii@kernel.org
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2024-07-12 15:52:11 -07:00
Linus Torvalds
f469cf967b Char/Misc driver fixes for 6.10-final 
Here are some small remaining driver fixes for 6.10-final that have all
 been in linux-next for a while and resolve reported issues.  Included in
 here are:
   - mei driver fixes (and a spelling fix at the end just to be clean)
   - iio driver fixes for reported problems
   - fastrpc bugfixes
   - nvmem small fixes
 
 Again, all have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.10-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc driver fixes from Greg KH:
 "Here are some small remaining driver fixes for 6.10-final that have
  all been in linux-next for a while and resolve reported issues.
  Included in here are:

   - mei driver fixes (and a spelling fix at the end just to be clean)

   - iio driver fixes for reported problems

   - fastrpc bugfixes

   - nvmem small fixes"

* tag 'char-misc-6.10-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  mei: vsc: Fix spelling error
  mei: vsc: Enhance SPI transfer of IVSC ROM
  mei: vsc: Utilize the appropriate byte order swap function
  mei: vsc: Prevent timeout error with added delay post-firmware download
  mei: vsc: Enhance IVSC chipset stability during warm reboot
  nvmem: core: limit cell sysfs permissions to main attribute ones
  nvmem: core: only change name to fram for current attribute
  nvmem: meson-efuse: Fix return value of nvmem callbacks
  nvmem: rmem: Fix return value of rmem_read()
  misc: microchip: pci1xxxx: Fix return value of nvmem callbacks
  hpet: Support 32-bit userspace
  misc: fastrpc: Restrict untrusted app to attach to privileged PD
  misc: fastrpc: Fix ownership reassignment of remote heap
  misc: fastrpc: Fix memory leak in audio daemon attach operation
  misc: fastrpc: Avoid updating PD type for capability request
  misc: fastrpc: Copy the complete capability structure to user
  misc: fastrpc: Fix DSP capabilities request
  iio: light: apds9306: Fix error handing
  iio: trigger: Fix condition for own trigger
 2024-07-12 08:45:27 -07:00
Paolo Bonzini
c8b8b8190a LoongArch KVM changes for v6.11 
1. Add ParaVirt steal time support.
 2. Add some VM migration enhancement.
 3. Add perf kvm-stat support for loongarch.
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Merge tag 'loongarch-kvm-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD

LoongArch KVM changes for v6.11

1. Add ParaVirt steal time support.
2. Add some VM migration enhancement.
3. Add perf kvm-stat support for loongarch.
 2024-07-12 11:24:12 -04:00
Isaku Yamahata
bc1a5cd002 KVM: Add KVM_PRE_FAULT_MEMORY vcpu ioctl to pre-populate guest memory 
Add a new ioctl KVM_PRE_FAULT_MEMORY in the KVM common code. It iterates on the
memory range and calls the arch-specific function.  The implementation is
optional and enabled by a Kconfig symbol.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Message-ID: <819322b8f25971f2b9933bfa4506e618508ad782.1712785629.git.isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2024-07-12 11:17:35 -04:00
Jacopo Mondi
1c2c57bd43 media: uapi: pisp_be_config: Add extra config fields 
Complete the pisp_be_config strcture by adding fields that even if not
written to the HW are relevant to complete the uAPI and put it in par
with the BSP driver.

Fixes: c6c49bac87 ("media: uapi: Add Raspberry Pi PiSP Back End uAPI")
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-07-12 10:11:43 +02:00
Jacopo Mondi
639065c621 media: uapi: pisp_be_config: Re-sort pisp_be_tiles_config 
The order of the members of pisp_be_tiles_config is relevant
as the driver logic assumes 'config' to be at offset 0.

Re-sort the member to match the driver's expectations.

Fixes: c6c49bac87 ("media: uapi: Add Raspberry Pi PiSP Back End uAPI")
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Acked-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-07-12 10:11:43 +02:00
Jacopo Mondi
f5cee94f2d media: uapi: pisp_common: Capitalize all macros 
The macro used to inspect an image format characteristic use a mixture
of capitalized and non-capitalized letters, which is rather unusual for
the Linux kernel style.

Capitalize all identifiers.

Fixes: c6c49bac87 ("media: uapi: Add Raspberry Pi PiSP Back End uAPI")
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-07-12 10:11:43 +02:00
Jacopo Mondi
1991a09e6d media: uapi: pisp_common: Add 32 bpp format test 
Add definition and test for 32-bits image formats to the pisp_common.h
uAPI header.

Fixes: c6c49bac87 ("media: uapi: Add Raspberry Pi PiSP Back End uAPI")
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Acked-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-07-12 10:11:43 +02:00
Jacopo Mondi
79cf9c6ee4 media: uapi: pisp_be_config: Drop BIT() from uAPI 
The pisp_be_config.h uAPI header file contains a bit-field definition
that uses the BIT() helper macro.

As the BIT() identifier is not defined in userspace, drop it from the
uAPI header.

Fixes: c6c49bac87 ("media: uapi: Add Raspberry Pi PiSP Back End uAPI")
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-07-12 10:11:43 +02:00
Jakub Kicinski
80ab5445da wireless-next patches for v6.11 
Most likely the last "new features" pull request for v6.11 with
 changes both in stack and in drivers. The big thing is the multiple
 radios for wiphy feature which makes it possible to better advertise
 radio capabilities to user space. mt76 enabled MLO and iwlwifi
 re-enabled MLO, ath12k and rtw89 Wi-Fi 6 devices got WoWLAN support.
 
 Major changes:
 
 cfg80211/mac80211
 
 * remove DEAUTH_NEED_MGD_TX_PREP flag
 
 * multiple radios per wiphy support
 
 mac80211_hwsim
 
 * multi-radio wiphy support
 
 ath12k
 
 * DebugFS support for datapath statistics
 
 * WCN7850: support for WoW (Wake on WLAN)
 
 * WCN7850: device-tree bindings
 
 ath11k
 
 * QCA6390: device-tree bindings
 
 iwlwifi
 
 * mvm: re-enable Multi-Link Operation (MLO)
 
 * aggregation (A-MSDU) optimisations
 
 rtw89
 
 * preparation for RTL8852BE-VT support
 
 * WoWLAN support for WiFi 6 chips
 
 * 36-bit PCI DMA support
 
 mt76
 
 * mt7925 Multi-Link Operation (MLO) support
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Merge tag 'wireless-next-2024-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Kalle Valo says:

====================
wireless-next patches for v6.11

Most likely the last "new features" pull request for v6.11 with
changes both in stack and in drivers. The big thing is the multiple
radios for wiphy feature which makes it possible to better advertise
radio capabilities to user space. mt76 enabled MLO and iwlwifi
re-enabled MLO, ath12k and rtw89 Wi-Fi 6 devices got WoWLAN support.

Major changes:

cfg80211/mac80211
 * remove DEAUTH_NEED_MGD_TX_PREP flag
 * multiple radios per wiphy support

mac80211_hwsim
 * multi-radio wiphy support

ath12k
 * DebugFS support for datapath statistics
 * WCN7850: support for WoW (Wake on WLAN)
 * WCN7850: device-tree bindings

ath11k
 * QCA6390: device-tree bindings

iwlwifi
 * mvm: re-enable Multi-Link Operation (MLO)
 * aggregation (A-MSDU) optimisations

rtw89
 * preparation for RTL8852BE-VT support
 * WoWLAN support for WiFi 6 chips
 * 36-bit PCI DMA support

mt76
 * mt7925 Multi-Link Operation (MLO) support

* tag 'wireless-next-2024-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (204 commits)
  wifi: mac80211: fix AP chandef capturing in CSA
  wifi: iwlwifi: correctly reference TSO page information
  wifi: mt76: mt792x: fix scheduler interference in drv own process
  wifi: mt76: mt7925: enabling MLO when the firmware supports it
  wifi: mt76: mt7925: remove the unused mt7925_mcu_set_chan_info
  wifi: mt76: mt7925: update mt7925_mac_link_bss_add for MLO
  wifi: mt76: mt7925: update mt7925_mcu_bss_basic_tlv for MLO
  wifi: mt76: mt7925: update mt7925_mcu_set_timing for MLO
  wifi: mt76: mt7925: update mt7925_mcu_sta_phy_tlv for MLO
  wifi: mt76: mt7925: update mt7925_mcu_sta_rate_ctrl_tlv for MLO
  wifi: mt76: mt7925: add mt7925_mcu_sta_eht_mld_tlv for MLO
  wifi: mt76: mt7925: update mt7925_mcu_sta_update for MLO
  wifi: mt76: mt7925: update mt7925_mcu_add_bss_info for MLO
  wifi: mt76: mt7925: update mt7925_mcu_bss_mld_tlv for MLO
  wifi: mt76: mt7925: update mt7925_mcu_sta_mld_tlv for MLO
  wifi: mt76: mt7925: add mt7925_[assign,unassign]_vif_chanctx
  wifi: mt76: add def_wcid to struct mt76_wcid
  wifi: mt76: mt7925: report link information in rx status
  wifi: mt76: mt7925: update rate index according to link id
  wifi: mt76: mt7925: add link handling in the mt7925_ipv6_addr_change
  ...
====================

Link: https://patch.msgid.link/20240711102353.0C849C116B1@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-07-11 17:22:04 -07:00
Lu Baolu
861f96a785 iommufd: Remove IOMMUFD_PAGE_RESP_FAILURE 
The response code of IOMMUFD_PAGE_RESP_FAILURE was defined to be
equivalent to the "Response Failure" in PCI spec, section 10.4.2.1.
This response code indicates that one or more pages within the
associated request group have encountered or caused an unrecoverable
error. Therefore, this response disables the PRI at the function.

Modern I/O virtualization technologies, like SR-IOV, share PRI among
the assignable device units. Therefore, a response failure on one unit
might cause I/O failure on other units.

Remove this response code so that user space can only respond with
SUCCESS or INVALID. The VMM is recommended to emulate a failure response
as a PRI reset, or PRI disable and changing to a non-PRI domain.

Fixes: c714f15860 ("iommufd: Add fault and response message definitions")
Link: https://lore.kernel.org/r/20240710083341.44617-2-baolu.lu@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2024-07-11 20:38:09 -03:00
Jakub Kicinski
7c8267275d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Cross-merge networking fixes after downstream PR.

Conflicts:

net/sched/act_ct.c
  26488172b0 ("net/sched: Fix UAF when resolving a clash")
  3abbd7ed8b ("act_ct: prepare for stolen verdict coming from conntrack and nat engine")

No adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-07-11 12:58:13 -07:00