Commit Graph

15578 Commits (e4fdbca2dc774366aca6532b57bfcdaae29aaf63)

Author SHA1 Message Date
Linus Torvalds 7696286034 for-6.19-tag
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Merge tag 'for-6.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "Features:

   - shutdown ioctl support (needs CONFIG_BTRFS_EXPERIMENTAL for now):
      - set filesystem state as being shut down (also named going down
        in other filesystems), where all active operations return EIO
        and this cannot be changed until unmount
      - pending operations are attempted to be finished but error
        messages may still show up depending on where exactly the
        shutdown happened

   - scrub (and device replace) vs suspend/hibernate:
      - a running scrub will prevent suspend, which can be annoying as
        suspend is an immediate request and scrub is not critical
      - filesystem freezing before suspend was not sufficient as the
        problem was in process freezing
      - behaviour change: on suspend scrub and device replace are
        cancelled, where scrub can record the last state and continue
        from there; the device replace has to be restarted from the
        beginning

   - zone stats exported in sysfs, from the perspective of the
     filesystem this includes active, reclaimable, relocation etc zones

  Performance:

   - improvements when processing space reservation tickets by
     optimizing locking and shrinking critical sections, cumulative
     improvements in lockstat numbers show +15%

  Notable fixes:

   - use vmalloc fallback when allocating bios as high order allocations
     can happen with wide checksums (like sha256)

   - scrub will always track the last position of progress so it's not
     starting from zero after an error

  Core:

   - under experimental config, checksum calculations are offloaded to
     process context, simplifies locking and allows to remove
     compression write worker kthread(s):
      - speed improvement in direct IO throughput with buffered IO
        fallback is +15% when not offloaded but this is more related to
        internal crypto subsystem improvements
      - this will be probably default in the future removing the sysfs
        tunable

   - (experimental) block size > page size updates:
      - support more operations when not using large folios (encoded
        read/write and send)
      - raid56

   - more preparations for fscrypt support

  Other:

   - more conversions to auto-cleaned variables

   - parameter cleanups and removals

   - extended warning fixes

   - improved printing of structured values like keys

   - lots of other cleanups and refactoring"

* tag 'for-6.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (147 commits)
  btrfs: remove unnecessary inode key in btrfs_log_all_parents()
  btrfs: remove redundant zero/NULL initializations in btrfs_alloc_root()
  btrfs: remaining BTRFS_PATH_AUTO_FREE conversions
  btrfs: send: do not allocate memory for xattr data when checking it exists
  btrfs: send: add unlikely to all unexpected overflow checks
  btrfs: reduce arguments to btrfs_del_inode_ref_in_log()
  btrfs: remove root argument from btrfs_del_dir_entries_in_log()
  btrfs: use test_and_set_bit() in btrfs_delayed_delete_inode_ref()
  btrfs: don't search back for dir inode item in INO_LOOKUP_USER
  btrfs: don't rewrite ret from inode_permission
  btrfs: add orig_logical to btrfs_bio for encryption
  btrfs: disable verity on encrypted inodes
  btrfs: disable various operations on encrypted inodes
  btrfs: remove redundant level reset in btrfs_del_items()
  btrfs: simplify leaf traversal after path release in btrfs_next_old_leaf()
  btrfs: optimize balance_level() path reference handling
  btrfs: factor out root promotion logic into promote_child_to_root()
  btrfs: raid56: remove the "_step" infix
  btrfs: raid56: enable bs > ps support
  btrfs: raid56: prepare finish_parity_scrub() to support bs > ps cases
  ...
2025-12-03 20:03:46 -08:00
Linus Torvalds cc25df3e2e for-6.19/block-20251201
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Merge tag 'for-6.19/block-20251201' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block updates from Jens Axboe:

 - Fix head insertion for mq-deadline, a regression from when priority
   support was added

 - Series simplifying and improving the ublk user copy code

 - Various ublk related cleanups

 - Fixup REQ_NOWAIT handling in loop/zloop, clearing NOWAIT when the
   request is punted to a thread for handling

 - Merge and then later revert loop dio nowait support, as it ended up
   causing excessive stack usage for when the inline issue code needs to
   dip back into the full file system code

 - Improve auto integrity code, making it less deadlock prone

 - Speedup polled IO handling, but manually managing the hctx lookups

 - Fixes for blk-throttle for SSD devices

 - Small series with fixes for the S390 dasd driver

 - Add support for caching zones, avoiding unnecessary report zone
   queries

 - MD pull requests via Yu:
      - fix null-ptr-dereference regression for dm-raid0
      - fix IO hang for raid5 when array is broken with IO inflight
      - remove legacy 1s delay to speed up system shutdown
      - change maintainer's email address
      - data can be lost if array is created with different lbs devices,
        fix this problem and record lbs of the array in metadata
      - fix rcu protection for md_thread
      - fix mddev kobject lifetime regression
      - enable atomic writes for md-linear
      - some cleanups

 - bcache updates via Coly
      - remove useless discard and cache device code
      - improve usage of per-cpu workqueues

 - Reorganize the IO scheduler switching code, fixing some lockdep
   reports as well

 - Improve the block layer P2P DMA support

 - Add support to the block tracing code for zoned devices

 - Segment calculation improves, and memory alignment flexibility
   improvements

 - Set of prep and cleanups patches for ublk batching support. The
   actual batching hasn't been added yet, but helps shrink down the
   workload of getting that patchset ready for 6.20

 - Fix for how the ps3 block driver handles segments offsets

 - Improve how block plugging handles batch tag allocations

 - nbd fixes for use-after-free of the configuration on device clear/put

 - Set of improvements and fixes for zloop

 - Add Damien as maintainer of the block zoned device code handling

 - Various other fixes and cleanups

* tag 'for-6.19/block-20251201' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (162 commits)
  block/rnbd: correct all kernel-doc complaints
  blk-mq: use queue_hctx in blk_mq_map_queue_type
  md: remove legacy 1s delay in md_notify_reboot
  md/raid5: fix IO hang when array is broken with IO inflight
  md: warn about updating super block failure
  md/raid0: fix NULL pointer dereference in create_strip_zones() for dm-raid
  sbitmap: fix all kernel-doc warnings
  ublk: add helper of __ublk_fetch()
  ublk: pass const pointer to ublk_queue_is_zoned()
  ublk: refactor auto buffer register in ublk_dispatch_req()
  ublk: add `union ublk_io_buf` with improved naming
  ublk: add parameter `struct io_uring_cmd *` to ublk_prep_auto_buf_reg()
  kfifo: add kfifo_alloc_node() helper for NUMA awareness
  blk-mq: fix potential uaf for 'queue_hw_ctx'
  blk-mq: use array manage hctx map instead of xarray
  ublk: prevent invalid access with DEBUG
  s390/dasd: Use scnprintf() instead of sprintf()
  s390/dasd: Move device name formatting into separate function
  s390/dasd: Remove unnecessary debugfs_create() return checks
  s390/dasd: Fix gendisk parent after copy pair swap
  ...
2025-12-03 19:26:18 -08:00
Linus Torvalds 0abcfd8983 for-6.19/io_uring-20251201
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Merge tag 'for-6.19/io_uring-20251201' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring updates from Jens Axboe:

 - Unify how task_work cancelations are detected, placing it in the
   task_work running state rather than needing to check the task state

 - Series cleaning up and moving the cancelation code to where it
   belongs, in cancel.c

 - Cleanup of waitid and futex argument handling

 - Add support for mixed sized SQEs. 6.18 added support for mixed sized
   CQEs, improving flexibility and efficiency of workloads that need big
   CQEs. This adds similar support for SQEs, where the occasional need
   for a 128b SQE doesn't necessitate having all SQEs be 128b in size

 - Introduce zcrx and SQ/CQ layout queries. The former returns what zcrx
   features are available. And both return the ring size information to
   help with allocation size calculation for user provided rings like
   IORING_SETUP_NO_MMAP and IORING_MEM_REGION_TYPE_USER

 - Zcrx updates for 6.19. It includes a bunch of small patches,
   IORING_REGISTER_ZCRX_CTRL and RQ flushing and David's work on sharing
   zcrx b/w multiple io_uring instances

 - Series cleaning up ring initializations, notable deduplicating ring
   size and offset calculations. It also moves most of the checking
   before doing any allocations, making the code simpler

 - Add support for getsockname and getpeername, which is mostly a
   trivial hookup after a bit of refactoring on the networking side

 - Various fixes and cleanups

* tag 'for-6.19/io_uring-20251201' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (68 commits)
  io_uring: Introduce getsockname io_uring cmd
  socket: Split out a getsockname helper for io_uring
  socket: Unify getsockname and getpeername implementation
  io_uring/query: drop unused io_handle_query_entry() ctx arg
  io_uring/kbuf: remove obsolete buf_nr_pages and update comments
  io_uring/register: use correct location for io_rings_layout
  io_uring/zcrx: share an ifq between rings
  io_uring/zcrx: add io_fill_zcrx_offsets()
  io_uring/zcrx: export zcrx via a file
  io_uring/zcrx: move io_zcrx_scrub() and dependencies up
  io_uring/zcrx: count zcrx users
  io_uring/zcrx: add sync refill queue flushing
  io_uring/zcrx: introduce IORING_REGISTER_ZCRX_CTRL
  io_uring/zcrx: elide passing msg flags
  io_uring/zcrx: use folio_nr_pages() instead of shift operation
  io_uring/zcrx: convert to use netmem_desc
  io_uring/query: introduce rings info query
  io_uring/query: introduce zcrx query
  io_uring: move cq/sq user offset init around
  io_uring: pre-calculate scq layout
  ...
2025-12-03 18:58:57 -08:00
Linus Torvalds 8f7aa3d3c7 Networking changes for 6.19.
Core & protocols
 ----------------
 
  - Replace busylock at the Tx queuing layer with a lockless list. Resulting
    in a 300% (4x) improvement on heavy TX workloads, sending twice the
    number of packets per second, for half the cpu cycles.
 
  - Allow constantly busy flows to migrate to a more suitable CPU/NIC
    queue. Normally we perform queue re-selection when flow comes out
    of idle, but under extreme circumstances the flows may be constantly
    busy. Add sysctl to allow periodic rehashing even if it'd risk packet
    reordering.
 
  - Optimize the NAPI skb cache, make it larger, use it in more paths.
 
  - Attempt returning Tx skbs to the originating CPU (like we already did
    for Rx skbs).
 
  - Various data structure layout and prefetch optimizations from Eric.
 
  - Remove ktime_get() from the recvmsg() fast path, ktime_get() is sadly
    quite expensive on recent AMD machines.
 
  - Extend threaded NAPI polling to allow the kthread busy poll for packets.
 
  - Make MPTCP use Rx backlog processing. This lowers the lock pressure,
    improving the Rx performance.
 
  - Support memcg accounting of MPTCP socket memory.
 
  - Allow admin to opt sockets out of global protocol memory accounting
    (using a sysctl or BPF-based policy). The global limits are a poor fit
    for modern container workloads, where limits are imposed using cgroups.
 
  - Improve heuristics for when to kick off AF_UNIX garbage collection.
 
  - Allow users to control TCP SACK compression, and default to 33% of RTT.
 
  - Add tcp_rcvbuf_low_rtt sysctl to let datacenter users avoid unnecessarily
    aggressive rcvbuf growth and overshot when the connection RTT is low.
 
  - Preserve skb metadata space across skb_push / skb_pull operations.
 
  - Support for IPIP encapsulation in the nftables flowtable offload.
 
  - Support appending IP interface information to ICMP messages (RFC 5837).
 
  - Support setting max record size in TLS (RFC 8449).
 
  - Remove taking rtnl_lock from RTM_GETNEIGHTBL and RTM_SETNEIGHTBL.
 
  - Use a dedicated lock (and RCU) in MPLS, instead of rtnl_lock.
 
  - Let users configure the number of write buffers in SMC.
 
  - Add new struct sockaddr_unsized for sockaddr of unknown length,
    from Kees.
 
  - Some conversions away from the crypto_ahash API, from Eric Biggers.
 
  - Some preparations for slimming down struct page.
 
  - YAML Netlink protocol spec for WireGuard.
 
  - Add a tool on top of YAML Netlink specs/lib for reporting commonly
    computed derived statistics and summarized system state.
 
 Driver API
 ----------
 
  - Add CAN XL support to the CAN Netlink interface.
 
  - Add uAPI for reporting PHY Mean Square Error (MSE) diagnostics,
    as defined by the OPEN Alliance's "Advanced diagnostic features
    for 100BASE-T1 automotive Ethernet PHYs" specification.
 
  - Add DPLL phase-adjust-gran pin attribute (and implement it in zl3073x).
 
  - Refactor xfrm_input lock to reduce contention when NIC offloads IPsec
    and performs RSS.
 
  - Add info to devlink params whether the current setting is the default
    or a user override. Allow resetting back to default.
 
  - Add standard device stats for PSP crypto offload.
 
  - Leverage DSA frame broadcast to implement simple HSR frame duplication
    for a lot of switches without dedicated HSR offload.
 
  - Add uAPI defines for 1.6Tbps link modes.
 
 Device drivers
 --------------
 
  - Add Motorcomm YT921x gigabit Ethernet switch support.
 
  - Add MUCSE driver for N500/N210 1GbE NIC series.
 
  - Convert drivers to support dedicated ops for timestamping control,
    and away from the direct IOCTL handling. While at it support GET
    operations for PHY timestamping.
 
  - Add (and convert most drivers to) a dedicated ethtool callback
    for reading the Rx ring count.
 
  - Significant refactoring efforts in the STMMAC driver, which supports
    Synopsys turn-key MAC IP integrated into a ton of SoCs.
 
  - Ethernet high-speed NICs:
    - Broadcom (bnxt):
      - support PPS in/out on all pins
    - Intel (100G, ice, idpf):
      - ice: implement standard ethtool and timestamping stats
      - i40e: support setting the max number of MAC addresses per VF
      - iavf: support RSS of GTP tunnels for 5G and LTE deployments
    - nVidia/Mellanox (mlx5):
      - reduce downtime on interface reconfiguration
      - disable being an XDP redirect target by default (same as other
        drivers) to avoid wasting resources if feature is unused
    - Meta (fbnic):
      - add support for Linux-managed PCS on 25G, 50G, and 100G links
    - Wangxun:
      - support Rx descriptor merge, and Tx head writeback
      - support Rx coalescing offload
      - support 25G SPF and 40G QSFP modules
 
  - Ethernet virtual:
    - Google (gve):
      - allow ethtool to configure rx_buf_len
      - implement XDP HW RX Timestamping support for DQ descriptor format
    - Microsoft vNIC (mana):
      - support HW link state events
      - handle hardware recovery events when probing the device
 
  - Ethernet NICs consumer, and embedded:
    - usbnet: add support for Byte Queue Limits (BQL)
    - AMD (amd-xgbe):
      - add device selftests
    - NXP (enetc):
      - add i.MX94 support
    - Broadcom integrated MACs (bcmgenet, bcmasp):
      - bcmasp: add support for PHY-based Wake-on-LAN
    - Broadcom switches (b53):
      - support port isolation
      - support BCM5389/97/98 and BCM63XX ARL formats
    - Lantiq/MaxLinear switches:
      - support bridge FDB entries on the CPU port
      - use regmap for register access
      - allow user to enable/disable learning
      - support Energy Efficient Ethernet
      - support configuring RMII clock delays
      - add tagging driver for MaxLinear GSW1xx switches
    - Synopsys (stmmac):
      - support using the HW clock in free running mode
      - add Eswin EIC7700 support
      - add Rockchip RK3506 support
      - add Altera Agilex5 support
    - Cadence (macb):
      - cleanup and consolidate descriptor and DMA address handling
      - add EyeQ5 support
    - TI:
      - icssg-prueth: support AF_XDP
    - Airoha access points:
      - add missing Ethernet stats and link state callback
      - add AN7583 support
      - support out-of-order Tx completion processing
    - Power over Ethernet:
      - pd692x0: preserve PSE configuration across reboots
      - add support for TPS23881B devices
 
  - Ethernet PHYs:
    - Open Alliance OATC14 10BASE-T1S PHY cable diagnostic support
    - Support 50G SerDes and 100G interfaces in Linux-managed PHYs
    - micrel:
      - support for non PTP SKUs of lan8814
      - enable in-band auto-negotiation on lan8814
    - realtek:
      - cable testing support on RTL8224
      - interrupt support on RTL8221B
    - motorcomm: support for PHY LEDs on YT853
    - microchip: support for LAN867X Rev.D0 PHYs w/ SQI and cable diag
    - mscc: support for PHY LED control
 
  - CAN drivers:
    - m_can: add support for optional reset and system wake up
    - remove can_change_mtu() obsoleted by core handling
    - mcp251xfd: support GPIO controller functionality
 
  - Bluetooth:
    - add initial support for PASTa
 
  - WiFi:
    - split ieee80211.h file, it's way too big
    - improvements in VHT radiotap reporting, S1G, Channel Switch
      Announcement handling, rate tracking in mesh networks
    - improve multi-radio monitor mode support, and add a cfg80211 debugfs
      interface for it
    - HT action frame handling on 6 GHz
    - initial chanctx work towards NAN
    - MU-MIMO sniffer improvements
 
  - WiFi drivers:
    - RealTek (rtw89):
      - support USB devices RTL8852AU and RTL8852CU
      - initial work for RTL8922DE
      - improved injection support
    - Intel:
      - iwlwifi: new sniffer API support
    - MediaTek (mt76):
      - WED support for >32-bit DMA
      - airoha NPU support
      - regdomain improvements
      - continued WiFi7/MLO work
    - Qualcomm/Atheros:
      - ath10k: factory test support
      - ath11k: TX power insertion support
      - ath12k: BSS color change support
      - ath12k: statistics improvements
    - brcmfmac: Acer A1 840 tablet quirk
    - rtl8xxxu: 40 MHz connection fixes/support
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Replace busylock at the Tx queuing layer with a lockless list.

     Resulting in a 300% (4x) improvement on heavy TX workloads, sending
     twice the number of packets per second, for half the cpu cycles.

   - Allow constantly busy flows to migrate to a more suitable CPU/NIC
     queue.

     Normally we perform queue re-selection when flow comes out of idle,
     but under extreme circumstances the flows may be constantly busy.

     Add sysctl to allow periodic rehashing even if it'd risk packet
     reordering.

   - Optimize the NAPI skb cache, make it larger, use it in more paths.

   - Attempt returning Tx skbs to the originating CPU (like we already
     did for Rx skbs).

   - Various data structure layout and prefetch optimizations from Eric.

   - Remove ktime_get() from the recvmsg() fast path, ktime_get() is
     sadly quite expensive on recent AMD machines.

   - Extend threaded NAPI polling to allow the kthread busy poll for
     packets.

   - Make MPTCP use Rx backlog processing. This lowers the lock
     pressure, improving the Rx performance.

   - Support memcg accounting of MPTCP socket memory.

   - Allow admin to opt sockets out of global protocol memory accounting
     (using a sysctl or BPF-based policy). The global limits are a poor
     fit for modern container workloads, where limits are imposed using
     cgroups.

   - Improve heuristics for when to kick off AF_UNIX garbage collection.

   - Allow users to control TCP SACK compression, and default to 33% of
     RTT.

   - Add tcp_rcvbuf_low_rtt sysctl to let datacenter users avoid
     unnecessarily aggressive rcvbuf growth and overshot when the
     connection RTT is low.

   - Preserve skb metadata space across skb_push / skb_pull operations.

   - Support for IPIP encapsulation in the nftables flowtable offload.

   - Support appending IP interface information to ICMP messages (RFC
     5837).

   - Support setting max record size in TLS (RFC 8449).

   - Remove taking rtnl_lock from RTM_GETNEIGHTBL and RTM_SETNEIGHTBL.

   - Use a dedicated lock (and RCU) in MPLS, instead of rtnl_lock.

   - Let users configure the number of write buffers in SMC.

   - Add new struct sockaddr_unsized for sockaddr of unknown length,
     from Kees.

   - Some conversions away from the crypto_ahash API, from Eric Biggers.

   - Some preparations for slimming down struct page.

   - YAML Netlink protocol spec for WireGuard.

   - Add a tool on top of YAML Netlink specs/lib for reporting commonly
     computed derived statistics and summarized system state.

  Driver API:

   - Add CAN XL support to the CAN Netlink interface.

   - Add uAPI for reporting PHY Mean Square Error (MSE) diagnostics, as
     defined by the OPEN Alliance's "Advanced diagnostic features for
     100BASE-T1 automotive Ethernet PHYs" specification.

   - Add DPLL phase-adjust-gran pin attribute (and implement it in
     zl3073x).

   - Refactor xfrm_input lock to reduce contention when NIC offloads
     IPsec and performs RSS.

   - Add info to devlink params whether the current setting is the
     default or a user override. Allow resetting back to default.

   - Add standard device stats for PSP crypto offload.

   - Leverage DSA frame broadcast to implement simple HSR frame
     duplication for a lot of switches without dedicated HSR offload.

   - Add uAPI defines for 1.6Tbps link modes.

  Device drivers:

   - Add Motorcomm YT921x gigabit Ethernet switch support.

   - Add MUCSE driver for N500/N210 1GbE NIC series.

   - Convert drivers to support dedicated ops for timestamping control,
     and away from the direct IOCTL handling. While at it support GET
     operations for PHY timestamping.

   - Add (and convert most drivers to) a dedicated ethtool callback for
     reading the Rx ring count.

   - Significant refactoring efforts in the STMMAC driver, which
     supports Synopsys turn-key MAC IP integrated into a ton of SoCs.

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - support PPS in/out on all pins
      - Intel (100G, ice, idpf):
         - ice: implement standard ethtool and timestamping stats
         - i40e: support setting the max number of MAC addresses per VF
         - iavf: support RSS of GTP tunnels for 5G and LTE deployments
      - nVidia/Mellanox (mlx5):
         - reduce downtime on interface reconfiguration
         - disable being an XDP redirect target by default (same as
           other drivers) to avoid wasting resources if feature is
           unused
      - Meta (fbnic):
         - add support for Linux-managed PCS on 25G, 50G, and 100G links
      - Wangxun:
         - support Rx descriptor merge, and Tx head writeback
         - support Rx coalescing offload
         - support 25G SPF and 40G QSFP modules

   - Ethernet virtual:
      - Google (gve):
         - allow ethtool to configure rx_buf_len
         - implement XDP HW RX Timestamping support for DQ descriptor
           format
      - Microsoft vNIC (mana):
         - support HW link state events
         - handle hardware recovery events when probing the device

   - Ethernet NICs consumer, and embedded:
      - usbnet: add support for Byte Queue Limits (BQL)
      - AMD (amd-xgbe):
         - add device selftests
      - NXP (enetc):
         - add i.MX94 support
      - Broadcom integrated MACs (bcmgenet, bcmasp):
         - bcmasp: add support for PHY-based Wake-on-LAN
      - Broadcom switches (b53):
         - support port isolation
         - support BCM5389/97/98 and BCM63XX ARL formats
      - Lantiq/MaxLinear switches:
         - support bridge FDB entries on the CPU port
         - use regmap for register access
         - allow user to enable/disable learning
         - support Energy Efficient Ethernet
         - support configuring RMII clock delays
         - add tagging driver for MaxLinear GSW1xx switches
      - Synopsys (stmmac):
         - support using the HW clock in free running mode
         - add Eswin EIC7700 support
         - add Rockchip RK3506 support
         - add Altera Agilex5 support
      - Cadence (macb):
         - cleanup and consolidate descriptor and DMA address handling
         - add EyeQ5 support
      - TI:
         - icssg-prueth: support AF_XDP
      - Airoha access points:
         - add missing Ethernet stats and link state callback
         - add AN7583 support
         - support out-of-order Tx completion processing
      - Power over Ethernet:
         - pd692x0: preserve PSE configuration across reboots
         - add support for TPS23881B devices

   - Ethernet PHYs:
      - Open Alliance OATC14 10BASE-T1S PHY cable diagnostic support
      - Support 50G SerDes and 100G interfaces in Linux-managed PHYs
      - micrel:
         - support for non PTP SKUs of lan8814
         - enable in-band auto-negotiation on lan8814
      - realtek:
         - cable testing support on RTL8224
         - interrupt support on RTL8221B
      - motorcomm: support for PHY LEDs on YT853
      - microchip: support for LAN867X Rev.D0 PHYs w/ SQI and cable diag
      - mscc: support for PHY LED control

   - CAN drivers:
      - m_can: add support for optional reset and system wake up
      - remove can_change_mtu() obsoleted by core handling
      - mcp251xfd: support GPIO controller functionality

   - Bluetooth:
      - add initial support for PASTa

   - WiFi:
      - split ieee80211.h file, it's way too big
      - improvements in VHT radiotap reporting, S1G, Channel Switch
        Announcement handling, rate tracking in mesh networks
      - improve multi-radio monitor mode support, and add a cfg80211
        debugfs interface for it
      - HT action frame handling on 6 GHz
      - initial chanctx work towards NAN
      - MU-MIMO sniffer improvements

   - WiFi drivers:
      - RealTek (rtw89):
         - support USB devices RTL8852AU and RTL8852CU
         - initial work for RTL8922DE
         - improved injection support
      - Intel:
         - iwlwifi: new sniffer API support
      - MediaTek (mt76):
         - WED support for >32-bit DMA
         - airoha NPU support
         - regdomain improvements
         - continued WiFi7/MLO work
      - Qualcomm/Atheros:
         - ath10k: factory test support
         - ath11k: TX power insertion support
         - ath12k: BSS color change support
         - ath12k: statistics improvements
      - brcmfmac: Acer A1 840 tablet quirk
      - rtl8xxxu: 40 MHz connection fixes/support"

* tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1381 commits)
  net: page_pool: sanitise allocation order
  net: page pool: xa init with destroy on pp init
  net/mlx5e: Support XDP target xmit with dummy program
  net/mlx5e: Update XDP features in switch channels
  selftests/tc-testing: Test CAKE scheduler when enqueue drops packets
  net/sched: sch_cake: Fix incorrect qlen reduction in cake_drop
  wireguard: netlink: generate netlink code
  wireguard: uapi: generate header with ynl-gen
  wireguard: uapi: move flag enums
  wireguard: uapi: move enum wg_cmd
  wireguard: netlink: add YNL specification
  selftests: drv-net: Fix tolerance calculation in devlink_rate_tc_bw.py
  selftests: drv-net: Fix and clarify TC bandwidth split in devlink_rate_tc_bw.py
  selftests: drv-net: Set shell=True for sysfs writes in devlink_rate_tc_bw.py
  selftests: drv-net: Use Iperf3Runner in devlink_rate_tc_bw.py
  selftests: drv-net: introduce Iperf3Runner for measurement use cases
  selftests: drv-net: Add devlink_rate_tc_bw.py to TEST_PROGS
  net: ps3_gelic_net: Use napi_alloc_skb() and napi_gro_receive()
  Documentation: net: dsa: mention simple HSR offload helpers
  Documentation: net: dsa: mention availability of RedBox
  ...
2025-12-03 17:24:33 -08:00
Linus Torvalds 015e7b0b0e bpf-next-6.19
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Merge tag 'bpf-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf updates from Alexei Starovoitov:

 - Convert selftests/bpf/test_tc_edt and test_tc_tunnel from .sh to
   test_progs runner (Alexis Lothoré)

 - Convert selftests/bpf/test_xsk to test_progs runner (Bastien
   Curutchet)

 - Replace bpf memory allocator with kmalloc_nolock() in
   bpf_local_storage (Amery Hung), and in bpf streams and range tree
   (Puranjay Mohan)

 - Introduce support for indirect jumps in BPF verifier and x86 JIT
   (Anton Protopopov) and arm64 JIT (Puranjay Mohan)

 - Remove runqslower bpf tool (Hoyeon Lee)

 - Fix corner cases in the verifier to close several syzbot reports
   (Eduard Zingerman, KaFai Wan)

 - Several improvements in deadlock detection in rqspinlock (Kumar
   Kartikeya Dwivedi)

 - Implement "jmp" mode for BPF trampoline and corresponding
   DYNAMIC_FTRACE_WITH_JMP. It improves "fexit" program type performance
   from 80 M/s to 136 M/s. With Steven's Ack. (Menglong Dong)

 - Add ability to test non-linear skbs in BPF_PROG_TEST_RUN (Paul
   Chaignon)

 - Do not let BPF_PROG_TEST_RUN emit invalid GSO types to stack (Daniel
   Borkmann)

 - Generalize buildid reader into bpf_dynptr (Mykyta Yatsenko)

 - Optimize bpf_map_update_elem() for map-in-map types (Ritesh
   Oedayrajsingh Varma)

 - Introduce overwrite mode for BPF ring buffer (Xu Kuohai)

* tag 'bpf-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (169 commits)
  bpf: optimize bpf_map_update_elem() for map-in-map types
  bpf: make kprobe_multi_link_prog_run always_inline
  selftests/bpf: do not hardcode target rate in test_tc_edt BPF program
  selftests/bpf: remove test_tc_edt.sh
  selftests/bpf: integrate test_tc_edt into test_progs
  selftests/bpf: rename test_tc_edt.bpf.c section to expose program type
  selftests/bpf: Add success stats to rqspinlock stress test
  rqspinlock: Precede non-head waiter queueing with AA check
  rqspinlock: Disable spinning for trylock fallback
  rqspinlock: Use trylock fallback when per-CPU rqnode is busy
  rqspinlock: Perform AA checks immediately
  rqspinlock: Enclose lock/unlock within lock entry acquisitions
  bpf: Remove runqslower tool
  selftests/bpf: Remove usage of lsm/file_alloc_security in selftest
  bpf: Disable file_alloc_security hook
  bpf: check for insn arrays in check_ptr_alignment
  bpf: force BPF_F_RDONLY_PROG on insn array creation
  bpf: Fix exclusive map memory leak
  selftests/bpf: Make CS length configurable for rqspinlock stress test
  selftests/bpf: Add lock wait time stats to rqspinlock stress test
  ...
2025-12-03 16:54:54 -08:00
Linus Torvalds d348c22394 Power management updates for 6.19-rc1
- Introduce and document a QoS limit on CPU exit latency during wakeup
    from suspend-to-idle (Ulf Hansson)
 
  - Add support for building libcpupower statically (Zuo An)
 
  - Add support for sending netlink notifications to user space on energy
    model updates (Changwoo Mini, Peng Fan)
 
  - Minor improvements to the Rust OPP interface (Tamir Duberstein)
 
  - Fixes to scope-based pointers in the OPP library (Viresh Kumar)
 
  - Use residency threshold in polling state override decisions in the
    menu cpuidle governor (Aboorva Devarajan)
 
  - Add sanity check for exit latency and target residency in the cpufreq
    core (Rafael Wysocki)
 
  - Use this_cpu_ptr() where possible in the teo governor (Christian
    Loehle)
 
  - Rework the handling of tick wakeups in the teo cpuidle governor to
    increase the likelihood of stopping the scheduler tick in the cases
    when tick wakeups can be counted as non-timer ones (Rafael Wysocki)
 
  - Fix a reverse condition in the teo cpuidle governor and drop a
    misguided target residency check from it (Rafael Wysocki)
 
  - Clean up multiple minor defects in the teo cpuidle governor (Rafael
    Wysocki)
 
  - Update header inclusion to make it follow the Include What You Use
    principle (Andy Shevchenko)
 
  - Enable MSR-based RAPL PMU support in the intel_rapl power capping
    driver and arrange for using it on the Panther Lake and Wildcat Lake
    processors (Kuppuswamy Sathyanarayanan)
 
  - Add support for Nova Lake and Wildcat Lake processors to the
    intel_rapl power capping driver (Kaushlendra Kumar, Srinivas
    Pandruvada)
 
  - Add OPP and bandwidth support for Tegra186 (Aaron Kling)
 
  - Optimizations for parameter array handling in the amd-pstate cpufreq
    driver (Mario Limonciello)
 
  - Fix for mode changes with offline CPUs in the amd-pstate cpufreq
    driver (Gautham Shenoy)
 
  - Preserve freq_table_sorted across suspend/hibernate in the cpufreq
    core (Zihuan Zhang)
 
  - Adjust energy model rules for Intel hybrid platforms in the
    intel_pstate cpufreq driver and improve printing of debug messages
    in it (Rafael Wysocki)
 
  - Replace deprecated strcpy() in cpufreq_unregister_governor()
    (Thorsten Blum)
 
  - Fix duplicate hyperlink target errors in the intel_pstate cpufreq
    driver documentation and use :ref: directive for internal linking in
    it (Swaraj Gaikwad, Bagas Sanjaya)
 
  - Add Diamond Rapids OOB mode support to the intel_pstate cpufreq
    driver (Kuppuswamy Sathyanarayanan)
 
  - Use mutex guard for driver locking in the intel_pstate driver and
    eliminate some code duplication from it (Rafael Wysocki)
 
  - Replace udelay() with usleep_range() in ACPI cpufreq (Kaushlendra
    Kumar)
 
  - Minor improvements to various cpufreq drivers (Christian Marangi, Hal
    Feng, Jie Zhan, Marco Crivellari, Miaoqian Lin, and Shuhao Fu)
 
  - Replace snprintf() with scnprintf() in show_trace_dev_match()
    (Kaushlendra Kumar)
 
  - Fix memory allocation error handling in pm_vt_switch_required()
    (Malaya Kumar Rout)
 
  - Introduce CALL_PM_OP() macro and use it to simplify code in
    generic PM operations (Kaushlendra Kumar)
 
  - Add module param to backtrace all CPUs in the device power management
    watchdog (Sergey Senozhatsky)
 
  - Rework message printing in swsusp_save() (Rafael Wysocki)
 
  - Make it possible to change the number of hibernation compression
    threads (Xueqin Luo)
 
  - Clarify that only cgroup1 freezer uses PM freezer (Tejun Heo)
 
  - Add document on debugging shutdown hangs to PM documentation and
    correct a mistaken configuration option in it (Mario Limonciello)
 
  - Shut down wakeup source timer before removing the wakeup source from
    the list (Kaushlendra Kumar, Rafael Wysocki)
 
  - Introduce new PMSG_POWEROFF event for system shutdown handling with
    the help of PM device callbacks (Mario Limonciello)
 
  - Make pm_test delay interruptible by wakeup events (Riwen Lu)
 
  - Clean up kernel-doc comment style usage in the core hibernation
    code and remove unuseful comments from it (Sunday Adelodun, Rafael
    Wysocki)
 
  - Add support for handling wakeup events and aborting the suspend
    process while it is syncing file systems (Samuel Wu, Rafael Wysocki)
 
  - Add WQ_UNBOUND to pm_wq workqueue (Marco Crivellari)
 
  - Add runtime PM wrapper macros for ACQUIRE()/ACQUIRE_ERR() and use
    them in the PCI core and the ACPI TAD driver (Rafael Wysocki)
 
  - Improve runtime PM in the ACPI TAD driver (Rafael Wysocki)
 
  - Update pm_runtime_allow/forbid() documentation (Rafael Wysocki)
 
  - Fix typos in runtime.c comments (Malaya Kumar Rout)
 
  - Move governor.h from devfreq under include/linux/ and rename to
    devfreq-governor.h to allow devfreq governor definitions in out
    of drivers/devfreq/ (Dmitry Baryshkov)
 
  - Use min() to improve readability in tegra30-devfreq.c (Thorsten
    Blum)
 
  - Fix potential use-after-free issue of OPP handling in
    hisi_uncore_freq.c (Pengjie Zhang)
 
  - Fix typo in DFSO_DOWNDIFFERENTIAL macro name in
    governor_simpleondemand.c in devfreq (Riwen Lu)
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Merge tag 'pm-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "There are quite a few interesting things here, including new hardware
  support, new features, some bug fixes and documentation updates. In
  addition, there are a usual bunch of minor fixes and cleanups all
  over.

  In the new hardware support category, there are intel_pstate and
  intel_rapl driver updates to support new processors, Panther Lake,
  Wildcat Lake, Noval Lake, and Diamond Rapids in the OOB mode, OPP and
  bandwidth allocation support in the tegra186 cpufreq driver, and
  JH7110S SOC support in dt-platdev cpufreq.

  The new features are the PM QoS CPU latency limit for suspend-to-idle,
  the netlink support for the energy model management, support for
  terminating system suspend via a wakeup event during the sync of file
  systems, configurable number of hibernation compression threads, the
  runtime PM auto-cleanup macros, and the "poweroff" PM event that is
  expected to be used during system shutdown.

  Bugs are mostly fixed in cpuidle governors, but there are also fixes
  elsewhere, like in the amd-pstate cpufreq driver.

  Documentation updates include, but are not limited to, a new doc on
  debugging shutdown hangs, cross-referencing fixes and cleanups in the
  intel_pstate documentation, and updates of comments in the core
  hibernation code.

  Specifics:

   - Introduce and document a QoS limit on CPU exit latency during
     wakeup from suspend-to-idle (Ulf Hansson)

   - Add support for building libcpupower statically (Zuo An)

   - Add support for sending netlink notifications to user space on
     energy model updates (Changwoo Mini, Peng Fan)

   - Minor improvements to the Rust OPP interface (Tamir Duberstein)

   - Fixes to scope-based pointers in the OPP library (Viresh Kumar)

   - Use residency threshold in polling state override decisions in the
     menu cpuidle governor (Aboorva Devarajan)

   - Add sanity check for exit latency and target residency in the
     cpufreq core (Rafael Wysocki)

   - Use this_cpu_ptr() where possible in the teo governor (Christian
     Loehle)

   - Rework the handling of tick wakeups in the teo cpuidle governor to
     increase the likelihood of stopping the scheduler tick in the cases
     when tick wakeups can be counted as non-timer ones (Rafael Wysocki)

   - Fix a reverse condition in the teo cpuidle governor and drop a
     misguided target residency check from it (Rafael Wysocki)

   - Clean up multiple minor defects in the teo cpuidle governor (Rafael
     Wysocki)

   - Update header inclusion to make it follow the Include What You Use
     principle (Andy Shevchenko)

   - Enable MSR-based RAPL PMU support in the intel_rapl power capping
     driver and arrange for using it on the Panther Lake and Wildcat
     Lake processors (Kuppuswamy Sathyanarayanan)

   - Add support for Nova Lake and Wildcat Lake processors to the
     intel_rapl power capping driver (Kaushlendra Kumar, Srinivas
     Pandruvada)

   - Add OPP and bandwidth support for Tegra186 (Aaron Kling)

   - Optimizations for parameter array handling in the amd-pstate
     cpufreq driver (Mario Limonciello)

   - Fix for mode changes with offline CPUs in the amd-pstate cpufreq
     driver (Gautham Shenoy)

   - Preserve freq_table_sorted across suspend/hibernate in the cpufreq
     core (Zihuan Zhang)

   - Adjust energy model rules for Intel hybrid platforms in the
     intel_pstate cpufreq driver and improve printing of debug messages
     in it (Rafael Wysocki)

   - Replace deprecated strcpy() in cpufreq_unregister_governor()
     (Thorsten Blum)

   - Fix duplicate hyperlink target errors in the intel_pstate cpufreq
     driver documentation and use :ref: directive for internal linking
     in it (Swaraj Gaikwad, Bagas Sanjaya)

   - Add Diamond Rapids OOB mode support to the intel_pstate cpufreq
     driver (Kuppuswamy Sathyanarayanan)

   - Use mutex guard for driver locking in the intel_pstate driver and
     eliminate some code duplication from it (Rafael Wysocki)

   - Replace udelay() with usleep_range() in ACPI cpufreq (Kaushlendra
     Kumar)

   - Minor improvements to various cpufreq drivers (Christian Marangi,
     Hal Feng, Jie Zhan, Marco Crivellari, Miaoqian Lin, and Shuhao Fu)

   - Replace snprintf() with scnprintf() in show_trace_dev_match()
     (Kaushlendra Kumar)

   - Fix memory allocation error handling in pm_vt_switch_required()
     (Malaya Kumar Rout)

   - Introduce CALL_PM_OP() macro and use it to simplify code in generic
     PM operations (Kaushlendra Kumar)

   - Add module param to backtrace all CPUs in the device power
     management watchdog (Sergey Senozhatsky)

   - Rework message printing in swsusp_save() (Rafael Wysocki)

   - Make it possible to change the number of hibernation compression
     threads (Xueqin Luo)

   - Clarify that only cgroup1 freezer uses PM freezer (Tejun Heo)

   - Add document on debugging shutdown hangs to PM documentation and
     correct a mistaken configuration option in it (Mario Limonciello)

   - Shut down wakeup source timer before removing the wakeup source
     from the list (Kaushlendra Kumar, Rafael Wysocki)

   - Introduce new PMSG_POWEROFF event for system shutdown handling with
     the help of PM device callbacks (Mario Limonciello)

   - Make pm_test delay interruptible by wakeup events (Riwen Lu)

   - Clean up kernel-doc comment style usage in the core hibernation
     code and remove unuseful comments from it (Sunday Adelodun, Rafael
     Wysocki)

   - Add support for handling wakeup events and aborting the suspend
     process while it is syncing file systems (Samuel Wu, Rafael
     Wysocki)

   - Add WQ_UNBOUND to pm_wq workqueue (Marco Crivellari)

   - Add runtime PM wrapper macros for ACQUIRE()/ACQUIRE_ERR() and use
     them in the PCI core and the ACPI TAD driver (Rafael Wysocki)

   - Improve runtime PM in the ACPI TAD driver (Rafael Wysocki)

   - Update pm_runtime_allow/forbid() documentation (Rafael Wysocki)

   - Fix typos in runtime.c comments (Malaya Kumar Rout)

   - Move governor.h from devfreq under include/linux/ and rename to
     devfreq-governor.h to allow devfreq governor definitions in out of
     drivers/devfreq/ (Dmitry Baryshkov)

   - Use min() to improve readability in tegra30-devfreq.c (Thorsten
     Blum)

   - Fix potential use-after-free issue of OPP handling in
     hisi_uncore_freq.c (Pengjie Zhang)

   - Fix typo in DFSO_DOWNDIFFERENTIAL macro name in
     governor_simpleondemand.c in devfreq (Riwen Lu)"

* tag 'pm-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (96 commits)
  PM / devfreq: Fix typo in DFSO_DOWNDIFFERENTIAL macro name
  cpuidle: Warn instead of bailing out if target residency check fails
  cpuidle: Update header inclusion
  Documentation: power/cpuidle: Document the CPU system wakeup latency QoS
  cpuidle: Respect the CPU system wakeup QoS limit for cpuidle
  sched: idle: Respect the CPU system wakeup QoS limit for s2idle
  pmdomain: Respect the CPU system wakeup QoS limit for cpuidle
  pmdomain: Respect the CPU system wakeup QoS limit for s2idle
  PM: QoS: Introduce a CPU system wakeup QoS limit
  cpuidle: governors: teo: Add missing space to the description
  PM: hibernate: Extra cleanup of comments in swap handling code
  PM / devfreq: tegra30: use min to simplify actmon_cpu_to_emc_rate
  PM / devfreq: hisi: Fix potential UAF in OPP handling
  PM / devfreq: Move governor.h to a public header location
  powercap: intel_rapl: Enable MSR-based RAPL PMU support
  powercap: intel_rapl: Prepare read_raw() interface for atomic-context callers
  cpufreq: qcom-nvmem: fix compilation warning for qcom_cpufreq_ipq806x_match_list
  PM: sleep: Call pm_sleep_fs_sync() instead of ksys_sync_helper()
  PM: sleep: Add support for wakeup during filesystem sync
  cpufreq: ACPI: Replace udelay() with usleep_range()
  ...
2025-12-02 17:31:22 -08:00
Linus Torvalds 44fc84337b arm64 updates for 6.19:
Core features:
 
  - Basic Arm MPAM (Memory system resource Partitioning And Monitoring)
    driver under drivers/resctrl/ which makes use of the fs/rectrl/ API
 
 Perf and PMU:
 
  - Avoid cycle counter on multi-threaded CPUs
 
  - Extend CSPMU device probing and add additional filtering support for
    NVIDIA implementations
 
  - Add support for the PMUs on the NoC S3 interconnect
 
  - Add additional compatible strings for new Cortex and C1 CPUs
 
  - Add support for data source filtering to the SPE driver
 
  - Add support for i.MX8QM and "DB" PMU in the imx PMU driver
 
 Memory managemennt:
 
  - Avoid broadcast TLBI if page reused in write fault
 
  - Elide TLB invalidation if the old PTE was not valid
 
  - Drop redundant cpu_set_*_tcr_t0sz() macros
 
  - Propagate pgtable_alloc() errors outside of __create_pgd_mapping()
 
  - Propagate return value from __change_memory_common()
 
 ACPI and EFI:
 
  - Call EFI runtime services without disabling preemption
 
  - Remove unused ACPI function
 
 Miscellaneous:
 
  - ptrace support to disable streaming on SME-only systems
 
  - Improve sysreg generation to include a 'Prefix' descriptor
 
  - Replace __ASSEMBLY__ with __ASSEMBLER__
 
  - Align register dumps in the kselftest zt-test
 
  - Remove some no longer used macros/functions
 
  - Various spelling corrections
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:
 "These are the arm64 updates for 6.19.

  The biggest part is the Arm MPAM driver under drivers/resctrl/.
  There's a patch touching mm/ to handle spurious faults for huge pmd
  (similar to the pte version). The corresponding arm64 part allows us
  to avoid the TLB maintenance if a (huge) page is reused after a write
  fault. There's EFI refactoring to allow runtime services with
  preemption enabled and the rest is the usual perf/PMU updates and
  several cleanups/typos.

  Summary:

  Core features:

   - Basic Arm MPAM (Memory system resource Partitioning And Monitoring)
     driver under drivers/resctrl/ which makes use of the fs/rectrl/ API

  Perf and PMU:

   - Avoid cycle counter on multi-threaded CPUs

   - Extend CSPMU device probing and add additional filtering support
     for NVIDIA implementations

   - Add support for the PMUs on the NoC S3 interconnect

   - Add additional compatible strings for new Cortex and C1 CPUs

   - Add support for data source filtering to the SPE driver

   - Add support for i.MX8QM and "DB" PMU in the imx PMU driver

  Memory managemennt:

   - Avoid broadcast TLBI if page reused in write fault

   - Elide TLB invalidation if the old PTE was not valid

   - Drop redundant cpu_set_*_tcr_t0sz() macros

   - Propagate pgtable_alloc() errors outside of __create_pgd_mapping()

   - Propagate return value from __change_memory_common()

  ACPI and EFI:

   - Call EFI runtime services without disabling preemption

   - Remove unused ACPI function

  Miscellaneous:

   - ptrace support to disable streaming on SME-only systems

   - Improve sysreg generation to include a 'Prefix' descriptor

   - Replace __ASSEMBLY__ with __ASSEMBLER__

   - Align register dumps in the kselftest zt-test

   - Remove some no longer used macros/functions

   - Various spelling corrections"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (94 commits)
  arm64/mm: Document why linear map split failure upon vm_reset_perms is not problematic
  arm64/pageattr: Propagate return value from __change_memory_common
  arm64/sysreg: Remove unused define ARM64_FEATURE_FIELD_BITS
  KVM: arm64: selftests: Consider all 7 possible levels of cache
  KVM: arm64: selftests: Remove ARM64_FEATURE_FIELD_BITS and its last user
  arm64: atomics: lse: Remove unused parameters from ATOMIC_FETCH_OP_AND macros
  Documentation/arm64: Fix the typo of register names
  ACPI: GTDT: Get rid of acpi_arch_timer_mem_init()
  perf: arm_spe: Add support for filtering on data source
  perf: Add perf_event_attr::config4
  perf/imx_ddr: Add support for PMU in DB (system interconnects)
  perf/imx_ddr: Get and enable optional clks
  perf/imx_ddr: Move ida_alloc() from ddr_perf_init() to ddr_perf_probe()
  dt-bindings: perf: fsl-imx-ddr: Add compatible string for i.MX8QM, i.MX8QXP and i.MX8DXL
  arm64: remove duplicate ARCH_HAS_MEM_ENCRYPT
  arm64: mm: use untagged address to calculate page index
  MAINTAINERS: new entry for MPAM Driver
  arm_mpam: Add kunit tests for props_mismatch()
  arm_mpam: Add kunit test for bitmap reset
  arm_mpam: Add helper to reset saved mbwu state
  ...
2025-12-02 17:03:55 -08:00
Linus Torvalds 2b09f480f0 A large overhaul of the restartable sequences and CID management:
The recent enablement of RSEQ in glibc resulted in regressions which are
   caused by the related overhead. It turned out that the decision to invoke
   the exit to user work was not really a decision. More or less each
   context switch caused that. There is a long list of small issues which
   sums up nicely and results in a 3-4% regression in I/O benchmarks.
 
   The other detail which caused issues due to extra work in context switch
   and task migration is the CID (memory context ID) management. It also
   requires to use a task work to consolidate the CID space, which is
   executed in the context of an arbitrary task and results in sporadic
   uncontrolled exit latencies.
 
   The rewrite addresses this by:
 
   - Removing deprecated and long unsupported functionality
 
   - Moving the related data into dedicated data structures which are
     optimized for fast path processing.
 
   - Caching values so actual decisions can be made
 
   - Replacing the current implementation with a optimized inlined variant.
 
   - Separating fast and slow path for architectures which use the generic
     entry code, so that only fault and error handling goes into the
     TIF_NOTIFY_RESUME handler.
 
   - Rewriting the CID management so that it becomes mostly invisible in the
     context switch path. That moves the work of switching modes into the
     fork/exit path, which is a reasonable tradeoff. That work is only
     required when a process creates more threads than the cpuset it is
     allowed to run on or when enough threads exit after that. An artificial
     thread pool benchmarks which triggers this did not degrade, it actually
     improved significantly.
 
     The main effect in migration heavy scenarios is that runqueue lock held
     time and therefore contention goes down significantly.
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Merge tag 'core-rseq-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull rseq updates from Thomas Gleixner:
 "A large overhaul of the restartable sequences and CID management:

  The recent enablement of RSEQ in glibc resulted in regressions which
  are caused by the related overhead. It turned out that the decision to
  invoke the exit to user work was not really a decision. More or less
  each context switch caused that. There is a long list of small issues
  which sums up nicely and results in a 3-4% regression in I/O
  benchmarks.

  The other detail which caused issues due to extra work in context
  switch and task migration is the CID (memory context ID) management.
  It also requires to use a task work to consolidate the CID space,
  which is executed in the context of an arbitrary task and results in
  sporadic uncontrolled exit latencies.

  The rewrite addresses this by:

   - Removing deprecated and long unsupported functionality

   - Moving the related data into dedicated data structures which are
     optimized for fast path processing.

   - Caching values so actual decisions can be made

   - Replacing the current implementation with a optimized inlined
     variant.

   - Separating fast and slow path for architectures which use the
     generic entry code, so that only fault and error handling goes into
     the TIF_NOTIFY_RESUME handler.

   - Rewriting the CID management so that it becomes mostly invisible in
     the context switch path. That moves the work of switching modes
     into the fork/exit path, which is a reasonable tradeoff. That work
     is only required when a process creates more threads than the
     cpuset it is allowed to run on or when enough threads exit after
     that. An artificial thread pool benchmarks which triggers this did
     not degrade, it actually improved significantly.

     The main effect in migration heavy scenarios is that runqueue lock
     held time and therefore contention goes down significantly"

* tag 'core-rseq-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits)
  sched/mmcid: Switch over to the new mechanism
  sched/mmcid: Implement deferred mode change
  irqwork: Move data struct to a types header
  sched/mmcid: Provide CID ownership mode fixup functions
  sched/mmcid: Provide new scheduler CID mechanism
  sched/mmcid: Introduce per task/CPU ownership infrastructure
  sched/mmcid: Serialize sched_mm_cid_fork()/exit() with a mutex
  sched/mmcid: Provide precomputed maximal value
  sched/mmcid: Move initialization out of line
  signal: Move MMCID exit out of sighand lock
  sched/mmcid: Convert mm CID mask to a bitmap
  cpumask: Cache num_possible_cpus()
  sched/mmcid: Use cpumask_weighted_or()
  cpumask: Introduce cpumask_weighted_or()
  sched/mmcid: Prevent pointless work in mm_update_cpus_allowed()
  sched/mmcid: Move scheduler code out of global header
  sched: Fixup whitespace damage
  sched/mmcid: Cacheline align MM CID storage
  sched/mmcid: Use proper data structures
  sched/mmcid: Revert the complex CID management
  ...
2025-12-02 08:48:53 -08:00
Linus Torvalds 6c26fbe8c9 Performance events changes for v6.19:
Callchain support:
 
  - Add support for deferred user-space stack unwinding for
    perf, enabled on x86. (Peter Zijlstra, Steven Rostedt)
 
  - unwind_user/x86: Enable frame pointer unwinding on x86
    (Josh Poimboeuf)
 
 x86 PMU support and infrastructure:
 
  - x86/insn: Simplify for_each_insn_prefix() (Peter Zijlstra)
 
  - x86/insn,uprobes,alternative: Unify insn_is_nop()
    (Peter Zijlstra)
 
 Intel PMU driver:
 
  - Large series to prepare for and implement architectural PEBS
    support for Intel platforms such as Clearwater Forest (CWF)
    and Panther Lake (PTL). (Dapeng Mi, Kan Liang)
 
  - Check dynamic constraints (Kan Liang)
 
  - Optimize PEBS extended config (Peter Zijlstra)
 
  - cstates: Remove PC3 support from LunarLake (Zhang Rui)
 
  - cstates: Add Pantherlake support (Zhang Rui)
 
  - cstates: Clearwater Forest support (Zide Chen)
 
 AMD PMU driver:
 
  - x86/amd: Check event before enable to avoid GPF (George Kennedy)
 
 Fixes and cleanups:
 
  - task_work: Fix NMI race condition (Peter Zijlstra)
 
  - perf/x86: Fix NULL event access and potential PEBS record loss
    (Dapeng Mi)
 
  - Misc other fixes and cleanups.
    (Dapeng Mi, Ingo Molnar, Peter Zijlstra)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2025-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull performance events updates from Ingo Molnar:
 "Callchain support:

   - Add support for deferred user-space stack unwinding for perf,
     enabled on x86. (Peter Zijlstra, Steven Rostedt)

   - unwind_user/x86: Enable frame pointer unwinding on x86 (Josh
     Poimboeuf)

  x86 PMU support and infrastructure:

   - x86/insn: Simplify for_each_insn_prefix() (Peter Zijlstra)

   - x86/insn,uprobes,alternative: Unify insn_is_nop() (Peter Zijlstra)

  Intel PMU driver:

   - Large series to prepare for and implement architectural PEBS
     support for Intel platforms such as Clearwater Forest (CWF) and
     Panther Lake (PTL). (Dapeng Mi, Kan Liang)

   - Check dynamic constraints (Kan Liang)

   - Optimize PEBS extended config (Peter Zijlstra)

   - cstates:
      - Remove PC3 support from LunarLake (Zhang Rui)
      - Add Pantherlake support (Zhang Rui)
      - Clearwater Forest support (Zide Chen)

  AMD PMU driver:

   - x86/amd: Check event before enable to avoid GPF (George Kennedy)

  Fixes and cleanups:

   - task_work: Fix NMI race condition (Peter Zijlstra)

   - perf/x86: Fix NULL event access and potential PEBS record loss
     (Dapeng Mi)

   - Misc other fixes and cleanups (Dapeng Mi, Ingo Molnar, Peter
     Zijlstra)"

* tag 'perf-core-2025-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
  perf/x86/intel: Fix and clean up intel_pmu_drain_arch_pebs() type use
  perf/x86/intel: Optimize PEBS extended config
  perf/x86/intel: Check PEBS dyn_constraints
  perf/x86/intel: Add a check for dynamic constraints
  perf/x86/intel: Add counter group support for arch-PEBS
  perf/x86/intel: Setup PEBS data configuration and enable legacy groups
  perf/x86/intel: Update dyn_constraint base on PEBS event precise level
  perf/x86/intel: Allocate arch-PEBS buffer and initialize PEBS_BASE MSR
  perf/x86/intel: Process arch-PEBS records or record fragments
  perf/x86/intel/ds: Factor out PEBS group processing code to functions
  perf/x86/intel/ds: Factor out PEBS record processing code to functions
  perf/x86/intel: Initialize architectural PEBS
  perf/x86/intel: Correct large PEBS flag check
  perf/x86/intel: Replace x86_pmu.drain_pebs calling with static call
  perf/x86: Fix NULL event access and potential PEBS record loss
  perf/x86: Remove redundant is_x86_event() prototype
  entry,unwind/deferred: Fix unwind_reset_info() placement
  unwind_user/x86: Fix arch=um build
  perf: Support deferred user unwind
  unwind_user/x86: Teach FP unwind about start of function
  ...
2025-12-01 20:42:01 -08:00
Asbjørn Sloth Tønnesen 88cedad45b wireguard: uapi: generate header with ynl-gen
Use ynl-gen to generate the UAPI header for WireGuard.

The cosmetic changes in this patch confirms that the spec is aligned
with the implementation. By using the generated version, it ensures
that they stay in sync.

Changes in the generated header:
* Trivial header guard rename.
* Trivial white space changes.
* Trivial comment changes.
* Precompute bitflags in ynl-gen (see [1]).
* Drop __*_F_ALL constants (see [1]).

[1] https://lore.kernel.org/r/20251014123201.6ecfd146@kernel.org/

No behavioural changes intended.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2025-12-02 04:12:49 +01:00
Asbjørn Sloth Tønnesen 8d974872ab wireguard: uapi: move flag enums
Move the wg*_flag enums, so they are defined above the attribute set
enums, where ynl-gen would place them.

This is an incremental step towards adopting an UAPI header generated
by ynl-gen. This is split out to keep the patches readable.

This is a trivial patch with no behavioural changes intended.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2025-12-02 04:12:49 +01:00
Asbjørn Sloth Tønnesen b5c5a82bf5 wireguard: uapi: move enum wg_cmd
This patch moves enum wg_cmd to the end of the file, where ynl-gen
would generate it.

This is an incremental step towards adopting an UAPI header generated
by ynl-gen. This is split out to keep the patches readable.

This is a trivial patch with no behavioural changes intended.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2025-12-02 04:12:49 +01:00
Asbjørn Sloth Tønnesen 6b0f4ca079 wireguard: netlink: add YNL specification
This patch adds a near[1] complete YNL specification for WireGuard,
documenting the protocol in a machine-readable format, rather than
comments in wireguard.h, and eases usage from C and non-C programming
languages alike.

The generated C library will be featured in a later patch, so in
this patch I will use the in-kernel python client for examples.

This makes the documentation in the UAPI header redundant, it is
therefore removed. The in-line documentation in the spec is based
on the existing comment in wireguard.h, and once released it will
be available in the kernel documentation at:
  https://docs.kernel.org/netlink/specs/wireguard.html
  (until then run: make htmldocs)

Generate wireguard.rst from this spec:
$ make -C tools/net/ynl/generated/ wireguard.rst

Query wireguard interface through pyynl:
$ sudo ./tools/net/ynl/pyynl/cli.py --family wireguard \
                                    --dump get-device \
                                    --json '{"ifindex":3}'
[{'fwmark': 0,
  'ifindex': 3,
  'ifname': 'wg-test',
  'listen-port': 54318,
  'peers': [{0: {'allowedips': [{0: {'cidr-mask': 0,
                                     'family': 2,
                                     'ipaddr': '0.0.0.0'}},
                                {0: {'cidr-mask': 0,
                                     'family': 10,
                                     'ipaddr': '::'}}],
                 'endpoint': b'[...]',
                 'last-handshake-time': {'nsec': 42, 'sec': 42},
                 'persistent-keepalive-interval': 42,
                 'preshared-key': '[...]',
                 'protocol-version': 1,
                 'public-key': '[...]',
                 'rx-bytes': 42,
                 'tx-bytes': 42}}],
  'private-key': '[...]',
  'public-key': '[...]'}]

Add another allowed IP prefix:
$ sudo ./tools/net/ynl/pyynl/cli.py --family wireguard \
  --do set-device --json '{"ifindex":3,"peers":[
    {"public-key":"6a df b1 83 a4 ..","allowedips":[
      {"cidr-mask":0,"family":10,"ipaddr":"::"}]}]}'

[1] As can be seen above, the "endpoint" is only dumped as binary data,
    as it can't be fully described in YNL. It's either a struct
    sockaddr_in or struct sockaddr_in6 depending on the attribute length.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2025-12-02 04:12:19 +01:00
Linus Torvalds db74a7d02a vfs-6.19-rc1.directory.delegations
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Merge tag 'vfs-6.19-rc1.directory.delegations' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull directory delegations update from Christian Brauner:
 "This contains the work for recall-only directory delegations for
  knfsd.

  Add support for simple, recallable-only directory delegations. This
  was decided at the fall NFS Bakeathon where the NFS client and server
  maintainers discussed how to merge directory delegation support.

  The approach starts with recallable-only delegations for several reasons:

   1. RFC8881 has gaps that are being addressed in RFC8881bis. In
      particular, it requires directory position information for
      CB_NOTIFY callbacks, which is difficult to implement properly
      under Linux. The spec is being extended to allow that information
      to be omitted.

   2. Client-side support for CB_NOTIFY still lags. The client side
      involves heuristics about when to request a delegation.

   3. Early indication shows simple, recallable-only delegations can
      help performance. Anna Schumaker mentioned seeing a multi-minute
      speedup in xfstests runs with them enabled.

  With these changes, userspace can also request a read lease on a
  directory that will be recalled on conflicting accesses. This may be
  useful for applications like Samba. Users can disable leases
  altogether via the fs.leases-enable sysctl if needed.

  VFS changes:

   - Dedicated Type for Delegations

     Introduce struct delegated_inode to track inodes that may have
     delegations that need to be broken. This replaces the previous
     approach of passing raw inode pointers through the delegation
     breaking code paths, providing better type safety and clearer
     semantics for the delegation machinery.

   - Break parent directory delegations in open(..., O_CREAT) codepath

   - Allow mkdir to wait for delegation break on parent

   - Allow rmdir to wait for delegation break on parent

   - Add try_break_deleg calls for parents to vfs_link(), vfs_rename(),
     and vfs_unlink()

   - Make vfs_create(), vfs_mknod(), and vfs_symlink() break delegations
     on parent directory

   - Clean up argument list for vfs_create()

   - Expose delegation support to userland

  Filelock changes:

   - Make lease_alloc() take a flags argument

   - Rework the __break_lease API to use flags

   - Add struct delegated_inode

   - Push the S_ISREG check down to ->setlease handlers

   - Lift the ban on directory leases in generic_setlease

  NFSD changes:

   - Allow filecache to hold S_IFDIR files

   - Allow DELEGRETURN on directories

   - Wire up GET_DIR_DELEGATION handling

  Fixes:

   - Fix kernel-doc warnings in __fcntl_getlease

   - Add needed headers for new struct delegation definition"

* tag 'vfs-6.19-rc1.directory.delegations' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  vfs: add needed headers for new struct delegation definition
  filelock: __fcntl_getlease: fix kernel-doc warnings
  vfs: expose delegation support to userland
  nfsd: wire up GET_DIR_DELEGATION handling
  nfsd: allow DELEGRETURN on directories
  nfsd: allow filecache to hold S_IFDIR files
  filelock: lift the ban on directory leases in generic_setlease
  vfs: make vfs_symlink break delegations on parent dir
  vfs: make vfs_mknod break delegations on parent directory
  vfs: make vfs_create break delegations on parent directory
  vfs: clean up argument list for vfs_create()
  vfs: break parent dir delegations in open(..., O_CREAT) codepath
  vfs: allow rmdir to wait for delegation break on parent
  vfs: allow mkdir to wait for delegation break on parent
  vfs: add try_break_deleg calls for parents to vfs_{link,rename,unlink}
  filelock: push the S_ISREG check down to ->setlease handlers
  filelock: add struct delegated_inode
  filelock: rework the __break_lease API to use flags
  filelock: make lease_alloc() take a flags argument
2025-12-01 15:34:41 -08:00
Linus Torvalds f2e74ecfba vfs-6.19-rc1.folio
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Merge tag 'vfs-6.19-rc1.folio' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull folio updates from Christian Brauner:
 "Add a new folio_next_pos() helper function that returns the file
  position of the first byte after the current folio. This is a common
  operation in filesystems when needing to know the end of the current
  folio.

  The helper is lifted from btrfs which already had its own version, and
  is now used across multiple filesystems and subsystems:
   - btrfs
   - buffer
   - ext4
   - f2fs
   - gfs2
   - iomap
   - netfs
   - xfs
   - mm

  This fixes a long-standing bug in ocfs2 on 32-bit systems with files
  larger than 2GiB. Presumably this is not a common configuration, but
  the fix is backported anyway. The other filesystems did not have bugs,
  they were just mildly inefficient.

  This also introduce uoff_t as the unsigned version of loff_t. A recent
  commit inadvertently changed a comparison from being unsigned (on
  64-bit systems) to being signed (which it had always been on 32-bit
  systems), leading to sporadic fstests failures.

  Generally file sizes are restricted to being a signed integer, but in
  places where -1 is passed to indicate "up to the end of the file", it
  is convenient to have an unsigned type to ensure comparisons are
  always unsigned regardless of architecture"

* tag 'vfs-6.19-rc1.folio' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fs: Add uoff_t
  mm: Use folio_next_pos()
  xfs: Use folio_next_pos()
  netfs: Use folio_next_pos()
  iomap: Use folio_next_pos()
  gfs2: Use folio_next_pos()
  f2fs: Use folio_next_pos()
  ext4: Use folio_next_pos()
  buffer: Use folio_next_pos()
  btrfs: Use folio_next_pos()
  filemap: Add folio_next_pos()
2025-12-01 10:26:38 -08:00
Linus Torvalds 212c4053a1 vfs-6.19-rc1.coredump
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Merge tag 'vfs-6.19-rc1.coredump' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull pidfd and coredump updates from Christian Brauner:
 "Features:

   - Expose coredump signal via pidfd

     Expose the signal that caused the coredump through the pidfd
     interface. The recent changes to rework coredump handling to rely
     on unix sockets are in the process of being used in systemd. The
     previous systemd coredump container interface requires the coredump
     file descriptor and basic information including the signal number
     to be sent to the container. This means the signal number needs to
     be available before sending the coredump to the container.

   - Add supported_mask field to pidfd

     Add a new supported_mask field to struct pidfd_info that indicates
     which information fields are supported by the running kernel. This
     allows userspace to detect feature availability without relying on
     error codes or kernel version checks.

  Cleanups:

   - Drop struct pidfs_exit_info and prepare to drop exit_info pointer,
     simplifying the internal publication mechanism for exit and
     coredump information retrievable via the pidfd ioctl

   - Use guard() for task_lock in pidfs

   - Reduce wait_pidfd lock scope

   - Add missing PIDFD_INFO_SIZE_VER1 constant

   - Add missing BUILD_BUG_ON() assert on struct pidfd_info

  Fixes:

   - Fix PIDFD_INFO_COREDUMP handling

  Selftests:

   - Split out coredump socket tests and common helpers into separate
     files for better organization

   - Fix userspace coredump client detection issues

   - Handle edge-triggered epoll correctly

   - Ignore ENOSPC errors in tests

   - Add debug logging to coredump socket tests, socket protocol tests,
     and test helpers

   - Add tests for PIDFD_INFO_COREDUMP_SIGNAL

   - Add tests for supported_mask field

   - Update pidfd header for selftests"

* tag 'vfs-6.19-rc1.coredump' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (23 commits)
  pidfs: reduce wait_pidfd lock scope
  selftests/coredump: add second PIDFD_INFO_COREDUMP_SIGNAL test
  selftests/coredump: add first PIDFD_INFO_COREDUMP_SIGNAL test
  selftests/coredump: ignore ENOSPC errors
  selftests/coredump: add debug logging to coredump socket protocol tests
  selftests/coredump: add debug logging to coredump socket tests
  selftests/coredump: add debug logging to test helpers
  selftests/coredump: handle edge-triggered epoll correctly
  selftests/coredump: fix userspace coredump client detection
  selftests/coredump: fix userspace client detection
  selftests/coredump: split out coredump socket tests
  selftests/coredump: split out common helpers
  selftests/pidfd: add second supported_mask test
  selftests/pidfd: add first supported_mask test
  selftests/pidfd: update pidfd header
  pidfs: expose coredump signal
  pidfs: drop struct pidfs_exit_info
  pidfs: prepare to drop exit_info pointer
  pidfd: add a new supported_mask field
  pidfs: add missing BUILD_BUG_ON() assert on struct pidfd_info
  ...
2025-12-01 10:17:39 -08:00
Linus Torvalds 415d34b92c namespace-6.19-rc1
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Merge tag 'namespace-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull namespace updates from Christian Brauner:
 "This contains substantial namespace infrastructure changes including a new
  system call, active reference counting, and extensive header cleanups.
  The branch depends on the shared kbuild branch for -fms-extensions support.

  Features:

   - listns() system call

     Add a new listns() system call that allows userspace to iterate
     through namespaces in the system. This provides a programmatic
     interface to discover and inspect namespaces, addressing
     longstanding limitations:

     Currently, there is no direct way for userspace to enumerate
     namespaces. Applications must resort to scanning /proc/*/ns/ across
     all processes, which is:
      - Inefficient - requires iterating over all processes
      - Incomplete - misses namespaces not attached to any running
        process but kept alive by file descriptors, bind mounts, or
        parent references
      - Permission-heavy - requires access to /proc for many processes
      - No ordering or ownership information
      - No filtering per namespace type

     The listns() system call solves these problems:

       ssize_t listns(const struct ns_id_req *req, u64 *ns_ids,
                      size_t nr_ns_ids, unsigned int flags);

       struct ns_id_req {
             __u32 size;
             __u32 spare;
             __u64 ns_id;
             struct /* listns */ {
                     __u32 ns_type;
                     __u32 spare2;
                     __u64 user_ns_id;
             };
       };

     Features include:
      - Pagination support for large namespace sets
      - Filtering by namespace type (MNT_NS, NET_NS, USER_NS, etc.)
      - Filtering by owning user namespace
      - Permission checks respecting namespace isolation

   - Active Reference Counting

     Introduce an active reference count that tracks namespace
     visibility to userspace. A namespace is visible in the following
     cases:
      - The namespace is in use by a task
      - The namespace is persisted through a VFS object (namespace file
        descriptor or bind-mount)
      - The namespace is a hierarchical type and is the parent of child
        namespaces

     The active reference count does not regulate lifetime (that's still
     done by the normal reference count) - it only regulates visibility
     to namespace file handles and listns().

     This prevents resurrection of namespaces that are pinned only for
     internal kernel reasons (e.g., user namespaces held by
     file->f_cred, lazy TLB references on idle CPUs, etc.) which should
     not be accessible via (1)-(3).

   - Unified Namespace Tree

     Introduce a unified tree structure for all namespaces with:
      - Fixed IDs assigned to initial namespaces
      - Lookup based solely on inode number
      - Maintained list of owned namespaces per user namespace
      - Simplified rbtree comparison helpers

   Cleanups

    - Header Reorganization:
      - Move namespace types into separate header (ns_common_types.h)
      - Decouple nstree from ns_common header
      - Move nstree types into separate header
      - Switch to new ns_tree_{node,root} structures with helper functions
      - Use guards for ns_tree_lock

   - Initial Namespace Reference Count Optimization
      - Make all reference counts on initial namespaces a nop to avoid
        pointless cacheline ping-pong for namespaces that can never go
        away
      - Drop custom reference count initialization for initial namespaces
      - Add NS_COMMON_INIT() macro and use it for all namespaces
      - pid: rely on common reference count behavior

   - Miscellaneous Cleanups
      - Rename exit_task_namespaces() to exit_nsproxy_namespaces()
      - Rename is_initial_namespace() and make argument const
      - Use boolean to indicate anonymous mount namespace
      - Simplify owner list iteration in nstree
      - nsfs: raise SB_I_NODEV, SB_I_NOEXEC, and DCACHE_DONTCACHE explicitly
      - nsfs: use inode_just_drop()
      - pidfs: raise DCACHE_DONTCACHE explicitly
      - pidfs: simplify PIDFD_GET__NAMESPACE ioctls
      - libfs: allow to specify s_d_flags
      - cgroup: add cgroup namespace to tree after owner is set
      - nsproxy: fix free_nsproxy() and simplify create_new_namespaces()

  Fixes:

   - setns(pidfd, ...) race condition

     Fix a subtle race when using pidfds with setns(). When the target
     task exits after prepare_nsset() but before commit_nsset(), the
     namespace's active reference count might have been dropped. If
     setns() then installs the namespaces, it would bump the active
     reference count from zero without taking the required reference on
     the owner namespace, leading to underflow when later decremented.

     The fix resurrects the ownership chain if necessary - if the caller
     succeeded in grabbing passive references, the setns() should
     succeed even if the target task exits or gets reaped.

   - Return EFAULT on put_user() error instead of success

   - Make sure references are dropped outside of RCU lock (some
     namespaces like mount namespace sleep when putting the last
     reference)

   - Don't skip active reference count initialization for network
     namespace

   - Add asserts for active refcount underflow

   - Add asserts for initial namespace reference counts (both passive
     and active)

   - ipc: enable is_ns_init_id() assertions

   - Fix kernel-doc comments for internal nstree functions

   - Selftests
      - 15 active reference count tests
      - 9 listns() functionality tests
      - 7 listns() permission tests
      - 12 inactive namespace resurrection tests
      - 3 threaded active reference count tests
      - commit_creds() active reference tests
      - Pagination and stress tests
      - EFAULT handling test
      - nsid tests fixes"

* tag 'namespace-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (103 commits)
  pidfs: simplify PIDFD_GET_<type>_NAMESPACE ioctls
  nstree: fix kernel-doc comments for internal functions
  nsproxy: fix free_nsproxy() and simplify create_new_namespaces()
  selftests/namespaces: fix nsid tests
  ns: drop custom reference count initialization for initial namespaces
  pid: rely on common reference count behavior
  ns: add asserts for initial namespace active reference counts
  ns: add asserts for initial namespace reference counts
  ns: make all reference counts on initial namespace a nop
  ipc: enable is_ns_init_id() assertions
  fs: use boolean to indicate anonymous mount namespace
  ns: rename is_initial_namespace()
  ns: make is_initial_namespace() argument const
  nstree: use guards for ns_tree_lock
  nstree: simplify owner list iteration
  nstree: switch to new structures
  nstree: add helper to operate on struct ns_tree_{node,root}
  nstree: move nstree types into separate header
  nstree: decouple from ns_common header
  ns: move namespace types into separate header
  ...
2025-12-01 09:47:41 -08:00
Jakub Kicinski 840a64710e netfilter pull request 25-11-28
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Merge tag 'nf-next-25-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next

Pablo Neira Ayuso says:

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

The following batch contains Netfilter updates for net-next:

0) Add sanity check for maximum encapsulations in bridge vlan,
   reported by the new AI robot.

1) Move the flowtable path discovery code to its own file, the
   nft_flow_offload.c mixes the nf_tables evaluation with the path
   discovery logic, just split this in two for clarity.

2) Consolidate flowtable xmit path by using dev_queue_xmit() and the
   real device behind the layer 2 vlan/pppoe device. This allows to
   inline encapsulation. After this update, hw_ifidx can be removed
   since both ifidx and hw_ifidx now point to the same device.

3) Support for IPIP encapsulation in the flowtable, extend selftest
   to cover for this new layer 3 offload, from Lorenzo Bianconi.

4) Push down the skb into the conncount API to fix duplicates in the
   conncount list for packets with non-confirmed conntrack entries,
   this is due to an optimization introduced in d265929930
   ("netfilter: nf_conncount: reduce unnecessary GC").
   From Fernando Fernandez Mancera.

5) In conncount, disable BH when performing garbage collection
   to consolidate existing behaviour in the conncount API, also
   from Fernando.

6) A matching packet with a confirmed conntrack invokes GC if
   conncount reaches the limit in an attempt to release slots.
   This allows the existing extensions to be used for real conntrack
   counting, not just limiting new connections, from Fernando.

7) Support for updating ct count objects in nf_tables, from Fernando.

8) Extend nft_flowtables.sh selftest to send IPv6 TCP traffic,
   from Lorenzo Bianconi.

9) Fixes for UAPI kernel-doc documentation, from Randy Dunlap.

* tag 'nf-next-25-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  netfilter: nf_tables: improve UAPI kernel-doc comments
  netfilter: ip6t_srh: fix UAPI kernel-doc comments format
  selftests: netfilter: nft_flowtable.sh: Add the capability to send IPv6 TCP traffic
  netfilter: nft_connlimit: add support to object update operation
  netfilter: nft_connlimit: update the count if add was skipped
  netfilter: nf_conncount: make nf_conncount_gc_list() to disable BH
  netfilter: nf_conncount: rework API to use sk_buff directly
  selftests: netfilter: nft_flowtable.sh: Add IPIP flowtable selftest
  netfilter: flowtable: Add IPIP tx sw acceleration
  netfilter: flowtable: Add IPIP rx sw acceleration
  netfilter: flowtable: use tuple address to calculate next hop
  netfilter: flowtable: remove hw_ifidx
  netfilter: flowtable: inline pppoe encapsulation in xmit path
  netfilter: flowtable: inline vlan encapsulation in xmit path
  netfilter: flowtable: consolidate xmit path
  netfilter: flowtable: move path discovery infrastructure to its own file
  netfilter: flowtable: check for maximum number of encapsulations in bridge vlan
====================

Link: https://patch.msgid.link/20251128002345.29378-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-28 20:08:39 -08:00
Jakub Kicinski 2c80116b50 Apart from the usual small things just driver updates:
- mt76:
    - WED support for >32-bit DMA
    - airoha NPU support
    - regdomain improvements
    - continued WiFi7/MLO work
  - rtw89
    - support USB devices RTL8852AU and RTL8852CU
    - initial work for RTL8922DE
    - improved injection support
  - rtl8xxxu: 40 MHz connection fixes/support
  - brcmfmac: Acer A1 840 tablet quirk
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Merge tag 'wireless-next-2025-11-27' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Johannes Berg says:

====================
Apart from the usual small things just driver updates:
 - mt76:
   - WED support for >32-bit DMA
   - airoha NPU support
   - regdomain improvements
   - continued WiFi7/MLO work
 - rtw89
   - support USB devices RTL8852AU and RTL8852CU
   - initial work for RTL8922DE
   - improved injection support
 - rtl8xxxu: 40 MHz connection fixes/support
 - brcmfmac: Acer A1 840 tablet quirk

* tag 'wireless-next-2025-11-27' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (152 commits)
  wifi: mac80211: allow sharing identical chanctx for S1G interfaces
  wifi: nl80211: vendor-cmd: intel: fix a blank kernel-doc line warning
  wifi: cfg80211: include s1g_primary_2mhz when comparing chandefs
  wifi: cfg80211: include s1g_primary_2mhz when sending chandef
  wifi: ieee80211: correct FILS status codes
  mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()
  wifi: mt76: mt792x: fix wifi init fail by setting MCU_RUNNING after CLC load
  wifi: mt76: Strip whitespace from build ddate
  wifi: mt76: mt7996: Add missing locking in mt7996_mac_sta_rc_work()
  wifi: mt76: mt7996: skip ieee80211_iter_keys() on scanning link remove
  wifi: mt76: mt7996: skip deflink accounting for offchannel links
  wifi: mt76: Move mt76_abort_scan out of mt76_reset_device()
  wifi: mt76: mt7996: move mt7996_update_beacons under mt76 mutex
  wifi: mt76: mt7996: grab mt76 mutex in mt7996_mac_sta_event()
  wifi: mt76: mt7925: ensure the 6GHz A-MPDU density cap from the hardware.
  wifi: mt76: mt7996: fix EMI rings for RRO
  wifi: mt76: mt7996: fix using wrong phy to start in mt7996_mac_restart()
  wifi: mt76: mt7996: fix MLO set key and group key issues
  wifi: mt76: mt7996: fix MLD group index assignment
  wifi: mt76: mt7996: use correct link_id when filling TXD and TXP
  ...
====================

Link: https://patch.msgid.link/20251127103806.17776-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-28 19:34:21 -08:00
Rafael J. Wysocki 638757c9c9 Merge branches 'pm-em' and 'pm-opp'
Merge energy model management updates and operating performance points
(OPP) library changes for 6.19-rc1:

 - Add support for sending netlink notifications to user space on energy
   model updates (Changwoo Mini, Peng Fan)

 - Minor improvements to the Rust OPP interface (Tamir Duberstein)

 - Fixes to scope-based pointers in the OPP library (Viresh Kumar)

* pm-em:
  PM: EM: Add to em_pd_list only when no failure
  PM: EM: Notify an event when the performance domain changes
  PM: EM: Implement em_notify_pd_created/updated()
  PM: EM: Implement em_notify_pd_deleted()
  PM: EM: Implement em_nl_get_pd_table_doit()
  PM: EM: Implement em_nl_get_pds_doit()
  PM: EM: Add an iterator and accessor for the performance domain
  PM: EM: Add a skeleton code for netlink notification
  PM: EM: Add em.yaml and autogen files
  PM: EM: Expose the ID of a performance domain via debugfs
  PM: EM: Assign a unique ID when creating a performance domain

* pm-opp:
  rust: opp: simplify callers of `to_c_str_array`
  OPP: Initialize scope-based pointers inline
  rust: opp: fix broken rustdoc link
2025-11-28 16:44:00 +01:00
Jeff Layton 4be9e04ebf
vfs: add needed headers for new struct delegation definition
The definition of struct delegation uses stdint.h integer types. Add the
necessary headers to ensure that always works.

Fixes: 1602bad16d ("vfs: expose delegation support to userland")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-28 10:55:34 +01:00
Peter Enderborg 6557cae0a2 if_ether.h: Clarify ethertype validity for gsw1xx dsa
This 0x88C3 is registered to Infineon Technologies Corporate Research ST
and are used by MaxLinear.
Infineon made a spin off called Lantiq.
Lantiq was acquired by Intel
MaxLinear acquired Intels Connected Home division.

The product FAQ from MaxLinear describes it's history from the F24S.
The driver for the gsw1xx is based on Lantiq showing it's similarities.

Ref https://standards-oui.ieee.org/ethertype/eth.txt

Signed-off-by: Peter Enderborg <Peter.Enderborg@axis.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-27 17:46:54 -08:00
Randy Dunlap d3a439e55c netfilter: nf_tables: improve UAPI kernel-doc comments
In include/uapi/linux/netfilter/nf_tables.h,
correct the kernel-doc comments for mistyped enum names and enum values to
avoid these kernel-doc warnings and improve the documentation:

nf_tables.h:896: warning: Enum value 'NFT_EXTHDR_OP_TCPOPT' not described
 in enum 'nft_exthdr_op'
nf_tables.h:896: warning: Excess enum value 'NFT_EXTHDR_OP_TCP' description
 in 'nft_exthdr_op'

nf_tables.h:1210: warning: expecting prototype for enum
 nft_flow_attributes. Prototype was for enum nft_offload_attributes instead

nf_tables.h:1428: warning: expecting prototype for enum nft_reject_code.
 Prototype was for enum nft_reject_inet_code instead

(add beginning '@' to each enum value description:)
nf_tables.h:1493: warning: Enum value 'NFTA_TPROXY_FAMILY' not described
 in enum 'nft_tproxy_attributes'
nf_tables.h:1493: warning: Enum value 'NFTA_TPROXY_REG_ADDR' not described
 in enum 'nft_tproxy_attributes'
nf_tables.h:1493: warning: Enum value 'NFTA_TPROXY_REG_PORT' not described
 in enum 'nft_tproxy_attributes'

nf_tables.h:1796: warning: expecting prototype for enum
 nft_device_attributes. Prototype was for enum
 nft_devices_attributes instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-11-28 00:07:19 +00:00
Randy Dunlap c4f0ab06e1 netfilter: ip6t_srh: fix UAPI kernel-doc comments format
Fix the kernel-doc format for struct members to be "@member" instead of
"@ member" to avoid kernel-doc warnings.

Warning: ip6t_srh.h:60 struct member 'next_hdr' not described in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'hdr_len' not described in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'segs_left' not described
 in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'last_entry' not described
 in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'tag' not described in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'mt_flags' not described in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'mt_invflags' not described
 in 'ip6t_srh'
Warning: ip6t_srh.h:93 struct member 'next_hdr' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'hdr_len' not described in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'segs_left' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'last_entry' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'tag' not described in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'psid_addr' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'nsid_addr' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'lsid_addr' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'psid_msk' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'nsid_msk' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'lsid_msk' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'mt_flags' not described
 in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'mt_invflags' not described
 in 'ip6t_srh1'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-11-28 00:07:19 +00:00
Jakub Kicinski db4029859d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts:

net/xdp/xsk.c
  0ebc27a4c6 ("xsk: avoid data corruption on cq descriptor number")
  8da7bea7db ("xsk: add indirect call for xsk_destruct_skb")
  30ed05adca ("xsk: use a smaller new lock for shared pool case")
https://lore.kernel.org/20251127105450.4a1665ec@canb.auug.org.au
https://lore.kernel.org/eb4eee14-7e24-4d1b-b312-e9ea738fefee@kernel.org

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-27 12:19:08 -08:00
Paolo Abeni 73f784b2c9 linux-can-next-for-6.19-20251126
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Merge tag 'linux-can-next-for-6.19-20251126' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2025-11-26

this is a pull request of 27 patches for net-next/main.

The first 17 patches are by Vincent Mailhol and Oliver Hartkopp and
add CAN XL support to the CAN netlink interface.

Geert Uytterhoeven and Biju Das provide 7 patches for the rcar_canfd
driver to add suspend/resume support.

The next 2 patches are by Markus Schneider-Pargmann and add them as
the m_can maintainer.

Conor Dooley's patch updates the mpfs-can DT bindungs.

linux-can-next-for-6.19-20251126

* tag 'linux-can-next-for-6.19-20251126' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next: (27 commits)
  dt-bindings: can: mpfs: document resets
  MAINTAINERS: Simplify m_can section
  MAINTAINERS: Add myself as m_can maintainer
  can: rcar_canfd: Add suspend/resume support
  can: rcar_canfd: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
  can: rcar_canfd: Invert CAN clock and close_candev() order
  can: rcar_canfd: Extract rcar_canfd_global_{,de}init()
  can: rcar_canfd: Use devm_clk_get_optional() for RAM clk
  can: rcar_canfd: Invert global vs. channel teardown
  can: rcar_canfd: Invert reset assert order
  can: dev: print bitrate error with two decimal digits
  can: raw: instantly reject unsupported CAN frames
  can: add dummy_can driver
  can: calc_bittiming: add can_calc_sample_point_pwm()
  can: calc_bittiming: add can_calc_sample_point_nrz()
  can: calc_bittiming: replace misleading "nominal" by "reference"
  can: netlink: add PWM netlink interface
  can: calc_bittiming: add PWM calculation
  can: bittiming: add PWM validation
  can: bittiming: add PWM parameters
  ...
====================

Link: https://patch.msgid.link/20251126120106.154635-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 15:45:17 +01:00
Alexander Duyck 39e138173a net: pcs: xpcs: Fix PMA identifier handling in XPCS
The XPCS driver was mangling the PMA identifier as the original code
appears to have been focused on just capturing the OUI. Rather than store a
mangled ID it is better to work with the actual PMA ID and instead just
mask out the values that don't apply rather than shifting them and
reordering them as you still don't get the original OUI for the NIC without
having to bitswap the values as per the definition of the layout in IEEE
802.3-2022 22.2.4.3.1.

By laying it out as it was in the hardware it is also less likely for us to
have an unintentional collision as the enum values will occupy the revision
number area while the OUI occupies the upper 22 bits.

Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/176374320920.959489.17267159479370601070.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 10:41:31 +01:00
Alexander Duyck 7622d55276 net: pcs: xpcs: Add support for 25G, 50G, and 100G interfaces
With this change we are adding support for 25G, 50G, and 100G interface
types to the XPCS driver. This had supposedly been enabled with the
addition of XLGMII but I don't see any capability for configuration there
so I suspect it may need to be refactored in the future.

With this change we can enable the XPCS driver with the selected interface
and it should be able to detect link, speed, and report the link status to
the phylink interface.

Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/176374320248.959489.11649590675011158859.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 10:41:30 +01:00
Alexander Duyck e6c43c9500 net: phy: Add MDIO_PMA_CTRL1_SPEED for 2.5G and 5G to reflect PMA values
The 2.5G and 5G values are not consistent between the PCS CTRL1 and PMA
CTRL1 values. In order to avoid confusion between the two I am updating the
values to include "PMA" in the name similar to values used in similar
places.

To avoid breaking UAPI I have retained the original macros and just defined
them as the new PMA based defines.

Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/176374319569.959489.6610469879021800710.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-27 10:41:30 +01:00
Gabriel Krisman Bertazi 5d24321e4c io_uring: Introduce getsockname io_uring cmd
Introduce a socket-specific io_uring_cmd to support
getsockname/getpeername via io_uring.  I made this an io_uring_cmd
instead of a new operation to avoid polluting the command namespace with
what is exclusively a socket operation.  In addition, since we don't
need to conform to existing interfaces, this merges the
getsockname/getpeername in a single operation, since the implementation
is pretty much the same.

This has been frequently requested, for instance at [1] and more
recently in the project Discord channel. The main use-case is to support
fixed socket file descriptors.

[1] https://github.com/axboe/liburing/issues/1356

Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-11-26 13:45:23 -07:00
Vincent Mailhol 46552323fa can: netlink: add PWM netlink interface
When the TMS is switched on, the node uses PWM (Pulse Width
Modulation) during the data phase instead of the classic NRZ (Non
Return to Zero) encoding.

PWM is configured by three parameters:

  - PWMS: Pulse Width Modulation Short phase
  - PWML: Pulse Width Modulation Long phase
  - PWMO: Pulse Width Modulation Offset time

For each of these parameters, define three IFLA symbols:

  - IFLA_CAN_PWM_PWM*_MIN: the minimum allowed value.
  - IFLA_CAN_PWM_PWM*_MAX: the maximum allowed value.
  - IFLA_CAN_PWM_PWM*: the runtime value.

This results in a total of nine IFLA symbols which are all nested in a
parent IFLA_CAN_XL_PWM symbol.

IFLA_CAN_PWM_PWM*_MIN and IFLA_CAN_PWM_PWM*_MAX define the range of
allowed values and will match the value statically configured by the
device in struct can_pwm_const.

IFLA_CAN_PWM_PWM* match the runtime values stored in struct can_pwm.
Those parameters may only be configured when the tms mode is on. If
the PWMS, PWML and PWMO parameters are provided, check that all the
needed parameters are present using can_validate_pwm(), then check
their value using can_validate_pwm_bittiming(). PWMO defaults to zero
if omitted. Otherwise, if CAN_CTRLMODE_XL_TMS is true but none of the
PWM parameters are provided, calculate them using can_calc_pwm().

Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-11-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-11-26 11:20:43 +01:00
Vincent Mailhol 233134af20 can: netlink: add CAN_CTRLMODE_XL_TMS flag
The Transceiver Mode Switching (TMS) indicates whether the CAN XL
controller shall use the PWM or NRZ encoding during the data phase.

The term "transceiver mode switching" is used in both ISO 11898-1 and
CiA 612-2 (although only the latter one uses the abbreviation TMS). We
adopt the same naming convention here for consistency.

Add the CAN_CTRLMODE_XL_TMS flag to the list of the CAN control modes.

Add can_validate_xl_flags() to check the coherency of the TMS flag.
That function will be reused in upcoming changes to validate the other
CAN XL flags.

Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-6-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-11-26 11:20:43 +01:00
Vincent Mailhol e632816147 can: netlink: add initial CAN XL support
CAN XL uses bittiming parameters different from Classical CAN and CAN
FD. Thus, all the data bittiming parameters, including TDC, need to be
duplicated for CAN XL.

Add the CAN XL netlink interface for all the features which are common
with CAN FD. Any new CAN XL specific features are added later on.

The first time CAN XL is activated, the MTU is set by default to
CANXL_MAX_MTU. The user may then configure a custom MTU within the
CANXL_MIN_MTU to CANXL_MAX_MTU range, in which case, the custom MTU
value will be kept as long as CAN XL remains active.

Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-5-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-11-26 11:20:43 +01:00
Vincent Mailhol 60f511f443 can: netlink: add CAN_CTRLMODE_RESTRICTED
ISO 11898-1:2024 adds a new restricted operation mode. This mode is
added as a mandatory feature for nodes which support CAN XL and is
retrofitted as optional for legacy nodes (i.e. the ones which only
support Classical CAN and CAN FD).

The restricted operation mode is nearly the same as the listen only
mode: the node can not send data frames or remote frames and can not
send dominant bits if an error occurs. The only exception is that the
node shall still send the acknowledgment bit. A second niche exception
is that the node may still send a data frame containing a time
reference message if the node is a primary time provider, but because
the time provider feature is not yet implemented in the kernel, this
second exception is not relevant to us at the moment.

Add the CAN_CTRLMODE_RESTRICTED control mode flag and update the
can_dev_dropped_skb() helper function accordingly.

Finally, bail out if both CAN_CTRLMODE_LISTENONLY and
CAN_CTRLMODE_RESTRICTED are provided.

Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-4-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-11-26 11:20:43 +01:00
Asbjørn Sloth Tønnesen 68e83f3472 tools: ynl-gen: add regeneration comment
Add a comment on regeneration to the generated files.

The comment is placed after the YNL-GEN line[1], as to not interfere
with ynl-regen.sh's detection logic.

[1] and after the optional YNL-ARG line.

Link: https://lore.kernel.org/r/aR5m174O7pklKrMR@zx2c4.com/
Suggested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251120174429.390574-3-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-25 19:20:42 -08:00
Randy Dunlap 1c6a92a5a5 wifi: nl80211: vendor-cmd: intel: fix a blank kernel-doc line warning
Delete an empty line prevent a kernel-doc warning:

Warning: ../include/uapi/linux/nl80211-vnd-intel.h:86 bad line:

Fixes: 3d2a2544ea ("nl80211: vendor-cmd: add Intel vendor commands for iwlmei usage")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20251125022834.3171742-1-rdunlap@infradead.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-25 10:34:55 +01:00
Matthew Wilcox (Oracle) 37d369fa97
fs: Add uoff_t
In a recent commit, I inadvertently changed a comparison from being an
unsigned comparison (on 64-bit systems) to being a signed comparison
(which it had always been on 32-bit systems).  This led to a sporadic
fstests failure.

To make sure this comparison is always unsigned, introduce a new type,
uoff_t which is the unsigned version of loff_t.  Generally file sizes
are restricted to being a signed integer, but in these two places it is
convenient to pass -1 to indicate "up to the end of the file".

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://patch.msgid.link/20251123220518.1447261-1-willy@infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-25 10:07:42 +01:00
Qu Wenruo 6b1ac78dd0 btrfs: implement shutdown ioctl
The shutdown ioctl should follow the XFS one, which use magic number 'X',
and ioctl number 125, with a uint32 as flags.

For now btrfs don't distinguish DEFAULT and LOGFLUSH flags (just like
f2fs), both will freeze the fs first (implies committing the current
transaction), setting the SHUTDOWN flag and finally thaw the fs.

For NOLOGFLUSH flag, the freeze/thaw part is skipped thus the current
transaction is aborted.

The new shutdown ioctl is hidden behind experimental features for more
testing.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <asj@kernel.org>
Tested-by: Anand Jain <asj@kernel.org>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-11-24 21:56:17 +01:00
James Clark cbbfba4847 perf: Add perf_event_attr::config4
Arm FEAT_SPE_FDS adds the ability to filter on the data source of a
packet using another 64-bits of event filtering control. As the existing
perf_event_attr::configN fields are all used up for SPE PMU, an
additional field is needed. Add a new 'config4' field.

Reviewed-by: Leo Yan <leo.yan@arm.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
2025-11-24 15:59:18 +00:00
Linus Torvalds ebd975458d Input updates for v6.18-rc6
- INPUT_PROP_HAPTIC_TOUCHPAD definition added early in 6.18 cycle has
   been renamed to INPUT_PROP_PRESSUREPAD to better reflect the kind of
   devices it is supposed to be set for
 
 - a new ID for a touchscreen found in Ayaneo Flip DS in Goodix driver
 
 - Goodix driver no longer tries to set reset pin as "input" as it causes
   issues when there is no pull up resistor installed on the board
 
 - fixes for cros_ec_keyb, imx_sc_key, and pegasus-notetaker drivers to
   deal with potential out-of-bounds access and memory corruption issues
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Merge tag 'input-for-v6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input fixes from Dmitry Torokhov:

 - INPUT_PROP_HAPTIC_TOUCHPAD definition added early in 6.18 cycle has
   been renamed to INPUT_PROP_PRESSUREPAD to better reflect the kind of
   devices it is supposed to be set for

 - a new ID for a touchscreen found in Ayaneo Flip DS in Goodix driver

 - Goodix driver no longer tries to set reset pin as "input" as it
   causes issues when there is no pull up resistor installed on the
   board

 - fixes for cros_ec_keyb, imx_sc_key, and pegasus-notetaker drivers to
   deal with potential out-of-bounds access and memory corruption issues

* tag 'input-for-v6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: rename INPUT_PROP_HAPTIC_TOUCHPAD to INPUT_PROP_PRESSUREPAD
  Input: cros_ec_keyb - fix an invalid memory access
  Input: imx_sc_key - fix memory corruption on unload
  Input: pegasus-notetaker - fix potential out-of-bounds access
  Input: goodix - remove setting of RST pin to input
  Input: goodix - add support for ACPI ID GDIX1003
2025-11-22 09:58:41 -08:00
Daniel Zahka 2a367002ed devlink: support default values for param-get and param-set
Support querying and resetting to default param values.

Introduce two new devlink netlink attrs:
DEVLINK_ATTR_PARAM_VALUE_DEFAULT and
DEVLINK_ATTR_PARAM_RESET_DEFAULT. The former is used to contain an
optional parameter value inside of the param_value nested
attribute. The latter is used in param-set requests from userspace to
indicate that the driver should reset the param to its default value.

To implement this, two new functions are added to the devlink driver
api: devlink_param::get_default() and
devlink_param::reset_default(). These callbacks allow drivers to
implement default param actions for runtime and permanent cmodes. For
driverinit params, the core latches the last value set by a driver via
devl_param_driverinit_value_set(), and uses that as the default value
for a param.

Because default parameter values are optional, it would be impossible
to discern whether or not a param of type bool has default value of
false or not provided if the default value is encoded using a netlink
flag type. For this reason, when a DEVLINK_PARAM_TYPE_BOOL has an
associated default value, the default value is encoded using a u8
type.

Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com>
Link: https://patch.msgid.link/20251119025038.651131-4-daniel.zahka@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-20 19:01:22 -08:00
Yael Chemla 491c5dc98b net: ethtool: Add support for 1600Gbps speed
Add support for 1600Gbps link modes based on 200Gbps per lane [1].
This includes the adopted IEEE 802.3dj copper and optical PMDs that use
200G/lane signaling [2].

Add the following PMD types:
- KR8 (backplane)
- CR8 (copper cable)
- DR8 (SMF 500m)
- DR8-2 (SMF 2km)

These modes are defined in the 802.3dj specifications.
References:
[1] https://www.ieee802.org/3/dj/public/23_03/opsasnick_3dj_01a_2303.pdf
[2] https://www.ieee802.org/3/dj/projdoc/objectives_P802d3dj_240314.pdf

Signed-off-by: Yael Chemla <ychemla@nvidia.com>
Reviewed-by: Shahar Shitrit <shshitrit@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/1763585297-1243980-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-20 18:21:29 -08:00
Linus Torvalds 6ba3bb3348 platform-drivers-x86 for v6.18-4
Fixes
 
 - acer-wmi: Ignore backlight event
 
 - alienware-wmi-wmax: Fix quirk match table order & drop redundant entries
 
 - amd/pmc:
   - Add Xbox Ally to spurious 8042 quirk list
   - Quirk list Lenovo Legion Go 2 NVMe resume
 
 - msi-wmi-platform:
   - Correct GUID to uppercase
   - GUID is uncleverly copy-pasted from an example so add a DMI whitelist
 
 - intel/speed_select_if: PCIBIOS_* return code conversion
 
 - intel-uncore-freq & ISST: Fix kernel doc warnings
 
 New HW support
 
 - alienware-wmi-wmax:
   - Alienware 16 Aurora support
   - Alienware M support
   - Alienware X support
   - Dell G support
 
 - amd/pmc:
   - ROG Xbox Ally (non-X) support
 
 - huaway-wmi: HONOR MagicBoox X16/X14 PrintScreen & YOYO keys
 
 - hp-wmi:
   - Omen 16-wf1xxx fan support
   - Omen MAX 16-ah0xx fan + thermal profile support
   - Victus 16-r0 and 16-s0 fan + thermal profile support
 
 - intel/hid: Intel Nova Lake support
 
 - intel-uncore-freq:
   - Intel Panther Lake support
   - Intel Wildcat Lake support
   - Intel Nova Lake support
 
 The following is an automated shortlog grouped by driver:
 
 acer-wmi:
  -  Ignore backlight event
 
 alienware-wmi-wmax:
  -  Add AWCC support to Alienware 16 Aurora
  -  Add support for the whole "G" family
  -  Add support for the whole "M" family
  -  Add support for the whole "X" family
  -  Drop redundant DMI entries
  -  Fix "Alienware m16 R1 AMD" quirk order
 
 amd: pmc:
  -  Add Lenovo Legion Go 2 to pmc quirk list
 
 amd/pmc:
  -  Add spurious_8042 to Xbox Ally
  -  Add support for Van Gogh SoC
 
 hp-wmi:
  -  Add Omen 16-wf1xxx fan support
  -  Add Omen MAX 16-ah0xx fan support and thermal profile
  -  mark Victus 16-r0 and 16-s0 for victus_s fan and thermal profile support
 
 huawei-wmi:
  -  add keys for HONOR models
 
 intel/hid:
  -  Add Nova Lake support
 
 intel/speed_select_if:
  -  Convert PCIBIOS_* return codes to errnos
 
 intel-uncore-freq:
  -  Add additional client processors
  -  fix all header kernel-doc warnings
 
 ISST: isst_if.h:
  -  fix all kernel-doc warnings
 
 msi-wmi-platform:
  -  Fix typo in WMI GUID
  -  Only load on MSI devices
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Merge tag 'platform-drivers-x86-v6.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Ilpo Järvinen:
 "This one has lots of new HW entries which adds to the size in diffstat
  but the individual changes are simple.

  Fixes

   - acer-wmi: Ignore backlight event

   - alienware-wmi-wmax: Fix quirk match table order & drop redundant
     entries

   - amd/pmc:
      - Add Xbox Ally to spurious 8042 quirk list
      - Quirk list Lenovo Legion Go 2 NVMe resume

   - msi-wmi-platform:
      - Correct GUID to uppercase
      - GUID is uncleverly copy-pasted from an example so add a DMI
        whitelist

   - intel/speed_select_if: PCIBIOS_* return code conversion

   - intel-uncore-freq & ISST: Fix kernel doc warnings

  New HW support

   - alienware-wmi-wmax:
      - Alienware 16 Aurora support
      - Alienware M support
      - Alienware X support
      - Dell G support

   - amd/pmc:
      - ROG Xbox Ally (non-X) support

   - huaway-wmi: HONOR MagicBoox X16/X14 PrintScreen & YOYO keys

   - hp-wmi:
      - Omen 16-wf1xxx fan support
      - Omen MAX 16-ah0xx fan + thermal profile support
      - Victus 16-r0 and 16-s0 fan + thermal profile support

   - intel/hid: Intel Nova Lake support

   - intel-uncore-freq:
      - Intel Panther Lake support
      - Intel Wildcat Lake support
      - Intel Nova Lake support"

* tag 'platform-drivers-x86-v6.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (21 commits)
  platform/x86: intel-uncore-freq: fix all header kernel-doc warnings
  platform/x86: acer-wmi: Ignore backlight event
  platform/x86/intel/speed_select_if: Convert PCIBIOS_* return codes to errnos
  platform/x86/intel/hid: Add Nova Lake support
  platform/x86: alienware-wmi-wmax: Add AWCC support to Alienware 16 Aurora
  platform/x86: hp-wmi: Add Omen MAX 16-ah0xx fan support and thermal profile
  platform/x86: msi-wmi-platform: Fix typo in WMI GUID
  platform/x86: msi-wmi-platform: Only load on MSI devices
  platform/x86/amd: pmc: Add Lenovo Legion Go 2 to pmc quirk list
  platform/x86/amd/pmc: Add spurious_8042 to Xbox Ally
  platform/x86/amd/pmc: Add support for Van Gogh SoC
  platform/x86: alienware-wmi-wmax: Add support for the whole "G" family
  platform/x86: alienware-wmi-wmax: Add support for the whole "X" family
  platform/x86: alienware-wmi-wmax: Add support for the whole "M" family
  platform/x86: alienware-wmi-wmax: Drop redundant DMI entries
  platform/x86: alienware-wmi-wmax: Fix "Alienware m16 R1 AMD" quirk order
  platform/x86: ISST: isst_if.h: fix all kernel-doc warnings
  platform/x86: intel-uncore-freq: Add additional client processors
  platform/x86: hp-wmi: Add Omen 16-wf1xxx fan support
  platform/x86: huawei-wmi: add keys for HONOR models
  ...
2025-11-20 09:39:34 -08:00
Jakub Kicinski 9e203721ec Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.18-rc7).

No conflicts, adjacent changes:

tools/testing/selftests/net/af_unix/Makefile
  e1bb28bf13 ("selftest: af_unix: Add test for SO_PEEK_OFF.")
  45a1cd8346 ("selftests: af_unix: Add tests for ECONNRESET and EOF semantics")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-20 09:13:26 -08:00
Linus Torvalds 23cb64fb76 soc: fixes for 6.18, part 3
These are mainly devicetree fixes for the arm platforms from Rockchips
 NXP, ASpeed and Broadcom, addressing issues with accidental overclocking,
 pinctrl, network and dtc warnings.
 
 There are additional fixes for regressions with the i.MX reset and memory
 controller drivers as well as the Tegra memory controller driver
 
 Minor updates to the MAINTAINERS file, tee documentation and defconfigs
 bring those up to date with recent changes elsewhere.
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Merge tag 'soc-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC fixes from Arnd Bergmann:
 "These are mainly devicetree fixes for the arm platforms from Rockchips
  NXP, ASpeed and Broadcom, addressing issues with accidental
  overclocking, pinctrl, network and dtc warnings.

  There are additional fixes for regressions with the i.MX reset and
  memory controller drivers as well as the Tegra memory controller
  driver.

  Minor updates to the MAINTAINERS file, tee documentation and
  defconfigs bring those up to date with recent changes elsewhere"

* tag 'soc-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits)
  MAINTAINERS: sync omap devicetree maintainers with omap platform
  MAINTAINERS: Update Krzysztof Kozlowski's email
  arm64: dts: rockchip: fix PCIe 3.3V regulator voltage on orangepi-5
  arm64: dts: rockchip: disable HS400 on RK3588 Tiger
  arm64: dts: rockchip: drop reset from rk3576 i2c9 node
  tee: <uapi/linux/tee.h: fix all kernel-doc issues
  arm64: dts: rockchip: Fix USB power enable pin for BTT CB2 and Pi2
  arm64: dts: broadcom: bcm2712: rpi-5: Add ethernet0 alias
  arm64: dts: broadcom: Assign clock rates in eth node for RPi5
  reset: imx8mp-audiomix: Fix bad mask values
  ARM: dts: BCM53573: Fix address of Luxul XAP-1440's Ethernet PHY
  arm64: defconfig: Fix V3D deferred probe timeout
  arm64: dts: rockchip: Fix vccio4-supply on rk3566-pinetab2
  arm64: dts: rockchip: include rk3399-base instead of rk3399 in rk3399-op1
  arm64: dts: imx8mp-kontron: Fix USB OTG role switching
  arm64: dts: imx95: Fix MSI mapping for PCIe endpoint nodes
  arm64: dts: imx8-ss-img: Avoid gpio0_mipi_csi GPIOs being deferred
  arm: imx_v6_v7_defconfig: enable ext4 directly
  memory: tegra210: Fix incorrect client ids
  arm64: dts: rockchip: Fix indentation on rk3399 haikou demo dtso
  ...
2025-11-19 09:36:04 -08:00
Peter Hutterer ae8966b7b5 Input: rename INPUT_PROP_HAPTIC_TOUCHPAD to INPUT_PROP_PRESSUREPAD
And expand it to encompass all pressure pads.

Definition: "pressure pad" as used here as includes all touchpads that
use physical pressure to convert to click, without physical hinges. Also
called haptic touchpads in general parlance, Synaptics calls them
ForcePads.

Most (all?) pressure pads are currently advertised as
INPUT_PROP_BUTTONPAD. The suggestion to identify them as pressure pads
by defining the resolution on ABS_MT_PRESSURE has been in the docs since
commit 20ccc8dd38 ("Documentation: input: define
ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams") but few devices
provide this information.

In userspace it's thus impossible to determine whether a device is a
true pressure pad (pressure equals pressure) or a normal clickpad with
(pressure equals finger size).

Commit 7075ae4ac9 ("Input: add INPUT_PROP_HAPTIC_TOUCHPAD") introduces
INPUT_PROP_HAPTIC_TOUCHPAD but restricted it to those touchpads that
have support for userspace-controlled effects. Let's expand and rename
that definition to include all pressure pad touchpads since those that
do support FF effects can be identified by the presence of the
FF_HAPTIC bit.

This means:
- clickpad: INPUT_PROP_BUTTONPAD
- pressurepad: INPUT_PROP_BUTTONPAD + INPUT_PROP_PRESSUREPAD
- pressurepad with configurable haptics:
  INPUT_PROP_BUTTONPAD + INPUT_PROP_PRESSUREPAD + FF_HAPTIC

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://patch.msgid.link/20251106114534.GA405512@tassie
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2025-11-17 23:18:32 -08:00
Linus Torvalds e7c375b181 vfs-6.18-rc7.fixes
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Merge tag 'vfs-6.18-rc7.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:

 - Fix unitialized variable in statmount_string()

 - Fix hostfs mounting when passing host root during boot

 - Fix dynamic lookup to fail on cell lookup failure

 - Fix missing file type when reading bfs inodes from disk

 - Enforce checking of sb_min_blocksize() calls and update all callers
   accordingly

 - Restore write access before closing files opened by open_exec() in
   binfmt_misc

 - Always freeze efivarfs during suspend/hibernate cycles

 - Fix statmount()'s and listmount()'s grab_requested_mnt_ns() helper to
   actually allow mount namespace file descriptor in addition to mount
   namespace ids

 - Fix tmpfs remount when noswap is specified

 - Switch Landlock to iput_not_last() to remove false-positives from
   might_sleep() annotations in iput()

 - Remove dead node_to_mnt_ns() code

 - Ensure that per-queue kobjects are successfully created

* tag 'vfs-6.18-rc7.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
  landlock: fix splats from iput() after it started calling might_sleep()
  fs: add iput_not_last()
  shmem: fix tmpfs reconfiguration (remount) when noswap is set
  fs/namespace: correctly handle errors returned by grab_requested_mnt_ns
  power: always freeze efivarfs
  binfmt_misc: restore write access before closing files opened by open_exec()
  block: add __must_check attribute to sb_min_blocksize()
  virtio-fs: fix incorrect check for fsvq->kobj
  xfs: check the return value of sb_min_blocksize() in xfs_fs_fill_super
  isofs: check the return value of sb_min_blocksize() in isofs_fill_super
  exfat: check return value of sb_min_blocksize in exfat_read_boot_sector
  vfat: fix missing sb_min_blocksize() return value checks
  mnt: Remove dead code which might prevent from building
  bfs: Reconstruct file type when loading from disk
  afs: Fix dynamic lookup to fail on cell lookup failure
  hostfs: Fix only passing host root in boot stage with new mount
  fs: Fix uninitialized 'offp' in statmount_string()
2025-11-17 09:11:27 -08:00
Alexei Starovoitov e47b68bda4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.18-rc5+
Cross-merge BPF and other fixes after downstream PR.

Minor conflict in kernel/bpf/helpers.c

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-11-14 17:43:41 -08:00
Arnd Bergmann 124c98b100 TEE kernel-doc fixes for v6.18
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Merge tag 'tee-fix-for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jenswi/linux-tee into arm/fixes

TEE kernel-doc fixes for v6.18

* tag 'tee-fix-for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jenswi/linux-tee:
  tee: <uapi/linux/tee.h: fix all kernel-doc issues

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-11-14 22:22:00 +01:00
Linus Torvalds ac9f4f306d io_uring-6.18-20251113
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Merge tag 'io_uring-6.18-20251113' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring fixes from Jens Axboe:

 - Use the actual segments in a request when for bvec based buffers

 - Fix an odd case where the iovec might get leaked for a read/write
   request, if it was newly allocated, overflowed the alloc cache, and
   hit an early error

 - Minor tweak to the query API added in this release, returning the
   number of available entries

* tag 'io_uring-6.18-20251113' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring/rsrc: don't use blk_rq_nr_phys_segments() as number of bvecs
  io_uring/query: return number of available queries
  io_uring/rw: ensure allocated iovec gets cleared for early failure
2025-11-14 09:57:30 -08:00