1. 02 Nov, 2021 40 commits
    • Linus Torvalds's avatar
      Merge tag 'xfs-5.16-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · bba7d682
      Linus Torvalds authored
      Pull xfs updates from Darrick Wong:
       "This cycle we've worked on fixing bugs and improving XFS' memory
        footprint.
      
        The most notable fixes include: fixing a corruption warning (and free
        space accounting skew) if copy on write fails; fixing slab cache
        misuse if SLOB is enabled, which apparently was broken for years
        without anybody noticing; and fixing a potential race with online
        shrinkfs.
      
        Otherwise, the bulk of the changes here involve setting up separate
        slab caches for frequently used items such as btree cursors and log
        intent items, and compacting the structures to reduce memory usage of
        those items substantially. This also sets us up to support larger
        btrees in future kernels. We also switch parts of online fsck to
        allocate scrub context information from the heap instead of using
        stack space.
      
        Summary:
      
         - Bug fixes and cleanups for kernel memory allocation usage, this
           time without touching the mm code.
      
         - Refactor the log recovery mechanism that preserves held resources
           across a transaction roll so that it uses the exact same mechanism
           that we use for that during regular runtime.
      
         - Fix bugs and tighten checking around btree heights.
      
         - Remove more old typedefs.
      
         - Fix perag reference leaks when racing with growfs.
      
         - Remove unused fields from xfs_btree_cur.
      
         - Allocate various scrub structures on the heap to reduce stack
           usage.
      
         - Pack xfs_btree_cur fields and rearrange to support arbitrary
           heights.
      
         - Compute maximum possible heights for each btree height, and use
           that to set up slab caches for each btree type.
      
         - Finally remove kmem_zone_t, since these have always been struct
           kmem_cache on Linux.
      
         - Compact the structures used to coordinate work intent items.
      
         - Set up slab caches for each work intent item type.
      
         - Rename the "bmap_add_free" function to "free_extent_later", which
           more accurately describes what it does.
      
         - Fix corruption warning on unmount when a CoW preallocation covers a
           data fork delalloc reservation but then the CoW fails.
      
         - Add some more minor code improvements"
      
      * tag 'xfs-5.16-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (45 commits)
        xfs: use swap() to make code cleaner
        xfs: Remove duplicated include in xfs_super
        xfs: punch out data fork delalloc blocks on COW writeback failure
        xfs: remove unused parameter from refcount code
        xfs: reduce the size of struct xfs_extent_free_item
        xfs: rename xfs_bmap_add_free to xfs_free_extent_later
        xfs: create slab caches for frequently-used deferred items
        xfs: compact deferred intent item structures
        xfs: rename _zone variables to _cache
        xfs: remove kmem_zone typedef
        xfs: use separate btree cursor cache for each btree type
        xfs: compute absolute maximum nlevels for each btree type
        xfs: kill XFS_BTREE_MAXLEVELS
        xfs: compute the maximum height of the rmap btree when reflink enabled
        xfs: clean up xfs_btree_{calc_size,compute_maxlevels}
        xfs: compute maximum AG btree height for critical reservation calculation
        xfs: rename m_ag_maxlevels to m_allocbt_maxlevels
        xfs: dynamically allocate cursors based on maxlevels
        xfs: encode the max btree height in the cursor
        xfs: refactor btree cursor allocation function
        ...
      bba7d682
    • Linus Torvalds's avatar
      Merge tag 'afs-next-20211102' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs · a64a325b
      Linus Torvalds authored
      Pull AFS updates from David Howells:
      
       - Split the readpage handler for symlinks from the one for files. The
         symlink readpage isn't given a file pointer, so the handling has to
         be special-cased.
      
         This has been posted as part of a patchset to foliate netfs, afs,
         etc.[1] but I've moved it to this one as it's not actually doing
         foliation but is more of a pre-cleanup.
      
       - Fix file creation to set the mtime from the client's clock to keep
         make happy if the server's clock isn't quite in sync.[2]
      
      Link: https://lore.kernel.org/r/163005742570.2472992.7800423440314043178.stgit@warthog.procyon.org.uk/ [1]
      Link: http://lists.infradead.org/pipermail/linux-afs/2021-October/004395.html [2]
      
      * tag 'afs-next-20211102' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
        afs: Set mtime from the client for yfs create operations
        afs: Sort out symlink reading
      a64a325b
    • Linus Torvalds's avatar
      Merge tag 'gfs2-v5.15-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 · 78805cbe
      Linus Torvalds authored
      Pull gfs2 updates from Andreas Gruenbacher:
      
       - Fix a locking order inversion between the inode and iopen glocks in
         gfs2_inode_lookup.
      
       - Implement proper queuing of glock holders for glocks that require
         instantiation (like reading an inode or bitmap blocks from disk).
         Before, multiple glock holders could race with each other and
         half-initialized objects could be exposed; the GL_SKIP flag further
         exacerbated this problem.
      
       - Fix a rare deadlock between inode lookup / creation and remote delete
         work.
      
       - Fix a rare scheduling-while-atomic bug in dlm during glock hash table
         walks.
      
       - Various other minor fixes and cleanups.
      
      * tag 'gfs2-v5.15-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (21 commits)
        gfs2: Fix unused value warning in do_gfs2_set_flags()
        gfs2: check context in gfs2_glock_put
        gfs2: Fix glock_hash_walk bugs
        gfs2: Cancel remote delete work asynchronously
        gfs2: set glock object after nq
        gfs2: remove RDF_UPTODATE flag
        gfs2: Eliminate GIF_INVALID flag
        gfs2: fix GL_SKIP node_scope problems
        gfs2: split glock instantiation off from do_promote
        gfs2: further simplify do_promote
        gfs2: re-factor function do_promote
        gfs2: Remove 'first' trace_gfs2_promote argument
        gfs2: change go_lock to go_instantiate
        gfs2: dump glocks from gfs2_consist_OBJ_i
        gfs2: dequeue iopen holder in gfs2_inode_lookup error
        gfs2: Save ip from gfs2_glock_nq_init
        gfs2: Allow append and immutable bits to coexist
        gfs2: Switch some BUG_ON to GLOCK_BUG_ON for debug
        gfs2: move GL_SKIP check from glops to do_promote
        gfs2: Add GL_SKIP holder flag to dump_holder
        ...
      78805cbe
    • Linus Torvalds's avatar
      Merge tag 'gfs2-v5.15-rc5-mmap-fault' of... · c03098d4
      Linus Torvalds authored
      Merge tag 'gfs2-v5.15-rc5-mmap-fault' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
      
      Pull gfs2 mmap + page fault deadlocks fixes from Andreas Gruenbacher:
       "Functions gfs2_file_read_iter and gfs2_file_write_iter are both
        accessing the user buffer to write to or read from while holding the
        inode glock.
      
        In the most basic deadlock scenario, that buffer will not be resident
        and it will be mapped to the same file. Accessing the buffer will
        trigger a page fault, and gfs2 will deadlock trying to take the same
        inode glock again while trying to handle that fault.
      
        Fix that and similar, more complex scenarios by disabling page faults
        while accessing user buffers. To make this work, introduce a small
        amount of new infrastructure and fix some bugs that didn't trigger so
        far, with page faults enabled"
      
      * tag 'gfs2-v5.15-rc5-mmap-fault' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
        gfs2: Fix mmap + page fault deadlocks for direct I/O
        iov_iter: Introduce nofault flag to disable page faults
        gup: Introduce FOLL_NOFAULT flag to disable page faults
        iomap: Add done_before argument to iomap_dio_rw
        iomap: Support partial direct I/O on user copy failures
        iomap: Fix iomap_dio_rw return value for user copies
        gfs2: Fix mmap + page fault deadlocks for buffered I/O
        gfs2: Eliminate ip->i_gh
        gfs2: Move the inode glock locking to gfs2_file_buffered_write
        gfs2: Introduce flag for glock holder auto-demotion
        gfs2: Clean up function may_grant
        gfs2: Add wrapper for iomap_file_buffered_write
        iov_iter: Introduce fault_in_iov_iter_writeable
        iov_iter: Turn iov_iter_fault_in_readable into fault_in_iov_iter_readable
        gup: Turn fault_in_pages_{readable,writeable} into fault_in_{readable,writeable}
        powerpc/kvm: Fix kvm_use_magic_page
        iov_iter: Fix iov_iter_get_pages{,_alloc} page fault return value
      c03098d4
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm · ab2e7f4b
      Linus Torvalds authored
      Pull ARM updates from Russell King:
      
       - Rejig task/thread info to place thread info in task struct
      
       - Amba bus cleanups (removing unused functions)
      
       - Handle Amba device probe without IRQ domains
      
       - Parse linux,usable-memory-range in decompressor
      
       - Mark OCRAM as read-only after initialisation
      
       - Refactor page fault handling
      
       - Fix PXN handling with LPAE kernels
      
       - Warning and build fixes from Arnd
      
      * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (32 commits)
        ARM: 9151/1: Thumb2: avoid __builtin_thread_pointer() on Clang
        ARM: 9150/1: Fix PID_IN_CONTEXTIDR regression when THREAD_INFO_IN_TASK=y
        ARM: 9147/1: add printf format attribute to early_print()
        ARM: 9146/1: RiscPC needs older gcc version
        ARM: 9145/1: patch: fix BE32 compilation
        ARM: 9144/1: forbid ftrace with clang and thumb2_kernel
        ARM: 9143/1: add CONFIG_PHYS_OFFSET default values
        ARM: 9142/1: kasan: work around LPAE build warning
        ARM: 9140/1: allow compile-testing without machine record
        ARM: 9137/1: disallow CONFIG_THUMB with ARMv4
        ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
        ARM: 9135/1: kprobes: address gcc -Wempty-body warning
        ARM: 9101/1: sa1100/assabet: convert LEDs to gpiod APIs
        ARM: 9131/1: mm: Fix PXN process with LPAE feature
        ARM: 9130/1: mm: Provide die_kernel_fault() helper
        ARM: 9126/1: mm: Kill page table base print in show_pte()
        ARM: 9127/1: mm: Cleanup access_error()
        ARM: 9129/1: mm: Kill task_struct argument for __do_page_fault()
        ARM: 9128/1: mm: Refactor the __do_page_fault()
        ARM: imx6: mark OCRAM mapping read-only
        ...
      ab2e7f4b
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · d7e0a795
      Linus Torvalds authored
      Pull KVM updates from Paolo Bonzini:
       "ARM:
      
         - More progress on the protected VM front, now with the full fixed
           feature set as well as the limitation of some hypercalls after
           initialisation.
      
         - Cleanup of the RAZ/WI sysreg handling, which was pointlessly
           complicated
      
         - Fixes for the vgic placement in the IPA space, together with a
           bunch of selftests
      
         - More memcg accounting of the memory allocated on behalf of a guest
      
         - Timer and vgic selftests
      
         - Workarounds for the Apple M1 broken vgic implementation
      
         - KConfig cleanups
      
         - New kvmarm.mode=none option, for those who really dislike us
      
        RISC-V:
      
         - New KVM port.
      
        x86:
      
         - New API to control TSC offset from userspace
      
         - TSC scaling for nested hypervisors on SVM
      
         - Switch masterclock protection from raw_spin_lock to seqcount
      
         - Clean up function prototypes in the page fault code and avoid
           repeated memslot lookups
      
         - Convey the exit reason to userspace on emulation failure
      
         - Configure time between NX page recovery iterations
      
         - Expose Predictive Store Forwarding Disable CPUID leaf
      
         - Allocate page tracking data structures lazily (if the i915 KVM-GT
           functionality is not compiled in)
      
         - Cleanups, fixes and optimizations for the shadow MMU code
      
        s390:
      
         - SIGP Fixes
      
         - initial preparations for lazy destroy of secure VMs
      
         - storage key improvements/fixes
      
         - Log the guest CPNC
      
        Starting from this release, KVM-PPC patches will come from Michael
        Ellerman's PPC tree"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits)
        RISC-V: KVM: fix boolreturn.cocci warnings
        RISC-V: KVM: remove unneeded semicolon
        RISC-V: KVM: Fix GPA passed to __kvm_riscv_hfence_gvma_xyz() functions
        RISC-V: KVM: Factor-out FP virtualization into separate sources
        KVM: s390: add debug statement for diag 318 CPNC data
        KVM: s390: pv: properly handle page flags for protected guests
        KVM: s390: Fix handle_sske page fault handling
        KVM: x86: SGX must obey the KVM_INTERNAL_ERROR_EMULATION protocol
        KVM: x86: On emulation failure, convey the exit reason, etc. to userspace
        KVM: x86: Get exit_reason as part of kvm_x86_ops.get_exit_info
        KVM: x86: Clarify the kvm_run.emulation_failure structure layout
        KVM: s390: Add a routine for setting userspace CPU state
        KVM: s390: Simplify SIGP Set Arch handling
        KVM: s390: pv: avoid stalls when making pages secure
        KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm
        KVM: s390: pv: avoid double free of sida page
        KVM: s390: pv: add macros for UVC CC values
        s390/mm: optimize reset_guest_reference_bit()
        s390/mm: optimize set_guest_storage_key()
        s390/mm: no need for pte_alloc_map_lock() if we know the pmd is present
        ...
      d7e0a795
    • Linus Torvalds's avatar
      Merge tag 'hyperv-next-signed-20211102' of... · 44261f8e
      Linus Torvalds authored
      Merge tag 'hyperv-next-signed-20211102' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
      
      Pull hyperv updates from Wei Liu:
      
       - Initial patch set for Hyper-V isolation VM support (Tianyu Lan)
      
       - Fix a warning on preemption (Vitaly Kuznetsov)
      
       - A bunch of misc cleanup patches
      
      * tag 'hyperv-next-signed-20211102' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
        x86/hyperv: Protect set_hv_tscchange_cb() against getting preempted
        Drivers: hv : vmbus: Adding NULL pointer check
        x86/hyperv: Remove duplicate include
        x86/hyperv: Remove duplicated include in hv_init
        Drivers: hv: vmbus: Remove unused code to check for subchannels
        Drivers: hv: vmbus: Initialize VMbus ring buffer for Isolation VM
        Drivers: hv: vmbus: Add SNP support for VMbus channel initiate message
        x86/hyperv: Add ghcb hvcall support for SNP VM
        x86/hyperv: Add Write/Read MSR registers via ghcb page
        Drivers: hv: vmbus: Mark vmbus ring buffer visible to host in Isolation VM
        x86/hyperv: Add new hvcall guest address host visibility support
        x86/hyperv: Initialize shared memory boundary in the Isolation VM.
        x86/hyperv: Initialize GHCB page in Isolation VM
      44261f8e
    • Linus Torvalds's avatar
      Merge tag 'printk-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux · 0aaa58ec
      Linus Torvalds authored
      Pull printk updates from Petr Mladek:
      
       - Extend %pGp print format to print hex value of the page flags
      
       - Use kvmalloc instead of kmalloc to allocate devkmsg buffers
      
       - Misc cleanup and warning fixes
      
      * tag 'printk-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
        vsprintf: Update %pGp documentation about that it prints hex value
        lib/vsprintf.c: Amend static asserts for format specifier flags
        vsprintf: Make %pGp print the hex value
        test_printf: Append strings more efficiently
        test_printf: Remove custom appending of '|'
        test_printf: Remove separate page_flags variable
        test_printf: Make pft array const
        ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
        printk: use gnu_printf format attribute for printk_sprint()
        printk: avoid -Wsometimes-uninitialized warning
        printk: use kvmalloc instead of kmalloc for devkmsg_user
      0aaa58ec
    • Linus Torvalds's avatar
      Merge tag 'integrity-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity · c150d66b
      Linus Torvalds authored
      Pull integrity subsystem updates from Mimi Zohar:
       "Other than the new gid IMA policy rule support and the RCU locking
        fix, the couple of remaining changes are minor/trivial (e.g.
        __ro_after_init, replacing strscpy)"
      
      * tag 'integrity-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
        evm: mark evm_fixmode as __ro_after_init
        ima: Use strscpy instead of strlcpy
        ima_policy: Remove duplicate 'the' in docs comment
        ima: add gid support
        ima: fix uid code style problems
        ima: fix deadlock when traversing "ima_default_rules".
      c150d66b
    • Linus Torvalds's avatar
      Merge tag 'libata-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata · 61f90a8e
      Linus Torvalds authored
      Pull libata updates from Damien Le Moal:
      
       - Remove duplicated AHCI adapter PCI device IDs (from Krzysztof)
      
       - Cleanup of device DMA state checking to consistantly use
         ata_dma_enabled() (from Reimar)
      
      * tag 'libata-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
        pata_radisys: fix checking of DMA state
        pata_optidma: fix checking of DMA state
        pata_amd: fix checking of DMA state
        pata_ali: fix checking of DMA state
        libata-scsi: fix checking of DMA state
        libata: fix checking of DMA state
        Add AHCI support for ASM1062+JBM575 cards
        ahci: remove duplicated PCI device IDs
      61f90a8e
    • Linus Torvalds's avatar
      Merge tag 'x86_core_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · cc0356d6
      Linus Torvalds authored
      Pull x86 core updates from Borislav Petkov:
      
       - Do not #GP on userspace use of CLI/STI but pretend it was a NOP to
         keep old userspace from breaking. Adjust the corresponding iopl
         selftest to that.
      
       - Improve stack overflow warnings to say which stack got overflowed and
         raise the exception stack sizes to 2 pages since overflowing the
         single page of exception stack is very easy to do nowadays with all
         the tracing machinery enabled. With that, rip out the custom mapping
         of AMD SEV's too.
      
       - A bunch of changes in preparation for FGKASLR like supporting more
         than 64K section headers in the relocs tool, correct ORC lookup table
         size to cover the whole kernel .text and other adjustments.
      
      * tag 'x86_core_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        selftests/x86/iopl: Adjust to the faked iopl CLI/STI usage
        vmlinux.lds.h: Have ORC lookup cover entire _etext - _stext
        x86/boot/compressed: Avoid duplicate malloc() implementations
        x86/boot: Allow a "silent" kaslr random byte fetch
        x86/tools/relocs: Support >64K section headers
        x86/sev: Make the #VC exception stacks part of the default stacks storage
        x86: Increase exception stack sizes
        x86/mm/64: Improve stack overflow warnings
        x86/iopl: Fake iopl(3) CLI/STI usage
      cc0356d6
    • Linus Torvalds's avatar
      Merge tag 'net-next-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next · fc02cb2b
      Linus Torvalds authored
      Pull networking updates from Jakub Kicinski:
       "Core:
      
         - Remove socket skb caches
      
         - Add a SO_RESERVE_MEM socket op to forward allocate buffer space and
           avoid memory accounting overhead on each message sent
      
         - Introduce managed neighbor entries - added by control plane and
           resolved by the kernel for use in acceleration paths (BPF / XDP
           right now, HW offload users will benefit as well)
      
         - Make neighbor eviction on link down controllable by userspace to
           work around WiFi networks with bad roaming implementations
      
         - vrf: Rework interaction with netfilter/conntrack
      
         - fq_codel: implement L4S style ce_threshold_ect1 marking
      
         - sch: Eliminate unnecessary RCU waits in mini_qdisc_pair_swap()
      
        BPF:
      
         - Add support for new btf kind BTF_KIND_TAG, arbitrary type tagging
           as implemented in LLVM14
      
         - Introduce bpf_get_branch_snapshot() to capture Last Branch Records
      
         - Implement variadic trace_printk helper
      
         - Add a new Bloomfilter map type
      
         - Track <8-byte scalar spill and refill
      
         - Access hw timestamp through BPF's __sk_buff
      
         - Disallow unprivileged BPF by default
      
         - Document BPF licensing
      
        Netfilter:
      
         - Introduce egress hook for looking at raw outgoing packets
      
         - Allow matching on and modifying inner headers / payload data
      
         - Add NFT_META_IFTYPE to match on the interface type either from
           ingress or egress
      
        Protocols:
      
         - Multi-Path TCP:
            - increase default max additional subflows to 2
            - rework forward memory allocation
            - add getsockopts: MPTCP_INFO, MPTCP_TCPINFO, MPTCP_SUBFLOW_ADDRS
      
         - MCTP flow support allowing lower layer drivers to configure msg
           muxing as needed
      
         - Automatic Multicast Tunneling (AMT) driver based on RFC7450
      
         - HSR support the redbox supervision frames (IEC-62439-3:2018)
      
         - Support for the ip6ip6 encapsulation of IOAM
      
         - Netlink interface for CAN-FD's Transmitter Delay Compensation
      
         - Support SMC-Rv2 eliminating the current same-subnet restriction, by
           exploiting the UDP encapsulation feature of RoCE adapters
      
         - TLS: add SM4 GCM/CCM crypto support
      
         - Bluetooth: initial support for link quality and audio/codec offload
      
        Driver APIs:
      
         - Add a batched interface for RX buffer allocation in AF_XDP buffer
           pool
      
         - ethtool: Add ability to control transceiver modules' power mode
      
         - phy: Introduce supported interfaces bitmap to express MAC
           capabilities and simplify PHY code
      
         - Drop rtnl_lock from DSA .port_fdb_{add,del} callbacks
      
        New drivers:
      
         - WiFi driver for Realtek 8852AE 802.11ax devices (rtw89)
      
         - Ethernet driver for ASIX AX88796C SPI device (x88796c)
      
        Drivers:
      
         - Broadcom PHYs
            - support 72165, 7712 16nm PHYs
            - support IDDQ-SR for additional power savings
      
         - PHY support for QCA8081, QCA9561 PHYs
      
         - NXP DPAA2: support for IRQ coalescing
      
         - NXP Ethernet (enetc): support for software TCP segmentation
      
         - Renesas Ethernet (ravb) - support DMAC and EMAC blocks of
           Gigabit-capable IP found on RZ/G2L SoC
      
         - Intel 100G Ethernet
            - support for eswitch offload of TC/OvS flow API, including
              offload of GRE, VxLAN, Geneve tunneling
            - support application device queues - ability to assign Rx and Tx
              queues to application threads
            - PTP and PPS (pulse-per-second) extensions
      
         - Broadcom Ethernet (bnxt)
            - devlink health reporting and device reload extensions
      
         - Mellanox Ethernet (mlx5)
            - offload macvlan interfaces
            - support HW offload of TC rules involving OVS internal ports
            - support HW-GRO and header/data split
            - support application device queues
      
         - Marvell OcteonTx2:
            - add XDP support for PF
            - add PTP support for VF
      
         - Qualcomm Ethernet switch (qca8k): support for QCA8328
      
         - Realtek Ethernet DSA switch (rtl8366rb)
            - support bridge offload
            - support STP, fast aging, disabling address learning
            - support for Realtek RTL8365MB-VC, a 4+1 port 10M/100M/1GE switch
      
         - Mellanox Ethernet/IB switch (mlxsw)
            - multi-level qdisc hierarchy offload (e.g. RED, prio and shaping)
            - offload root TBF qdisc as port shaper
            - support multiple routing interface MAC address prefixes
            - support for IP-in-IP with IPv6 underlay
      
         - MediaTek WiFi (mt76)
            - mt7921 - ASPM, 6GHz, SDIO and testmode support
            - mt7915 - LED and TWT support
      
         - Qualcomm WiFi (ath11k)
            - include channel rx and tx time in survey dump statistics
            - support for 80P80 and 160 MHz bandwidths
            - support channel 2 in 6 GHz band
            - spectral scan support for QCN9074
            - support for rx decapsulation offload (data frames in 802.3
              format)
      
         - Qualcomm phone SoC WiFi (wcn36xx)
            - enable Idle Mode Power Save (IMPS) to reduce power consumption
              during idle
      
         - Bluetooth driver support for MediaTek MT7922 and MT7921
      
         - Enable support for AOSP Bluetooth extension in Qualcomm WCN399x and
           Realtek 8822C/8852A
      
         - Microsoft vNIC driver (mana)
            - support hibernation and kexec
      
         - Google vNIC driver (gve)
            - support for jumbo frames
            - implement Rx page reuse
      
        Refactor:
      
         - Make all writes to netdev->dev_addr go thru helpers, so that we can
           add this address to the address rbtree and handle the updates
      
         - Various TCP cleanups and optimizations including improvements to
           CPU cache use
      
         - Simplify the gnet_stats, Qdisc stats' handling and remove
           qdisc->running sequence counter
      
         - Driver changes and API updates to address devlink locking
           deficiencies"
      
      * tag 'net-next-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2122 commits)
        Revert "net: avoid double accounting for pure zerocopy skbs"
        selftests: net: add arp_ndisc_evict_nocarrier
        net: ndisc: introduce ndisc_evict_nocarrier sysctl parameter
        net: arp: introduce arp_evict_nocarrier sysctl parameter
        libbpf: Deprecate AF_XDP support
        kbuild: Unify options for BTF generation for vmlinux and modules
        selftests/bpf: Add a testcase for 64-bit bounds propagation issue.
        bpf: Fix propagation of signed bounds from 64-bit min/max into 32-bit.
        bpf: Fix propagation of bounds from 64-bit min/max into 32-bit and var_off.
        net: vmxnet3: remove multiple false checks in vmxnet3_ethtool.c
        net: avoid double accounting for pure zerocopy skbs
        tcp: rename sk_wmem_free_skb
        netdevsim: fix uninit value in nsim_drv_configure_vfs()
        selftests/bpf: Fix also no-alu32 strobemeta selftest
        bpf: Add missing map_delete_elem method to bloom filter map
        selftests/bpf: Add bloom map success test for userspace calls
        bpf: Add alignment padding for "map_extra" + consolidate holes
        bpf: Bloom filter map naming fixups
        selftests/bpf: Add test cases for struct_ops prog
        bpf: Add dummy BPF STRUCT_OPS for test purpose
        ...
      fc02cb2b
    • Paolo Bonzini's avatar
      Merge tag 'kvm-riscv-5.16-2' of https://github.com/kvm-riscv/linux into HEAD · 52cf891d
      Paolo Bonzini authored
      Minor cocci warning fixes:
      1) Bool return warning fix
      2) Unnedded semicolon warning fix
      52cf891d
    • Marc Dionne's avatar
      afs: Set mtime from the client for yfs create operations · 52af7105
      Marc Dionne authored
      For operations that create vnodes on the server such as CreateFile,
      MakeDir or Symlink, the server will store its own current time as
      the mtime if the client doesn't pass in a time in the accompanying
      StoreStatus structure.
      
      If the server and client clocks are not well synchronized, the client
      may see timestamps in the future or inconsistent dependency checks
      with "make" for files that are not modified after creation:
      
      make[2]: Warning: File 'arch/x86/kernel/apic/modules.order' has
      modification time 0.14 s in the future
      make[2]: warning:  Clock skew detected.  Your build may be incomplete.
      
      This is already handled correctly for non yfs operations; also
      set the mtime for the corresponding yfs operations.
      
      Changes:
      v3: Replace S_IRWXUGO with 0777, per checkpatch
      v2: [dhowells] Merge the two xdr_encode_YFSStoreStatus*() functions together
      Signed-off-by: default avatarMarc Dionne <marc.dionne@auristor.com>
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Link: http://lists.infradead.org/pipermail/linux-afs/2021-October/004395.html
      52af7105
    • David Howells's avatar
    • Petr Mladek's avatar
      40e64a88
    • Russell King (Oracle)'s avatar
    • Jakub Kicinski's avatar
      Revert "net: avoid double accounting for pure zerocopy skbs" · 84882cf7
      Jakub Kicinski authored
      This reverts commit f1a456f8.
      
        WARNING: CPU: 1 PID: 6819 at net/core/skbuff.c:5429 skb_try_coalesce+0x78b/0x7e0
        CPU: 1 PID: 6819 Comm: xxxxxxx Kdump: loaded Tainted: G S                5.15.0-04194-gd852503f7711 #16
        RIP: 0010:skb_try_coalesce+0x78b/0x7e0
        Code: e8 2a bf 41 ff 44 8b b3 bc 00 00 00 48 8b 7c 24 30 e8 19 c0 41 ff 44 89 f0 48 03 83 c0 00 00 00 48 89 44 24 40 e9 47 fb ff ff <0f> 0b e9 ca fc ff ff 4c 8d 70 ff 48 83 c0 07 48 89 44 24 38 e9 61
        RSP: 0018:ffff88881f449688 EFLAGS: 00010282
        RAX: 00000000fffffe96 RBX: ffff8881566e4460 RCX: ffffffff82079f7e
        RDX: 0000000000000003 RSI: dffffc0000000000 RDI: ffff8881566e47b0
        RBP: ffff8881566e46e0 R08: ffffed102619235d R09: ffffed102619235d
        R10: ffff888130c91ae3 R11: ffffed102619235c R12: ffff88881f4498a0
        R13: 0000000000000056 R14: 0000000000000009 R15: ffff888130c91ac0
        FS:  00007fec2cbb9700(0000) GS:ffff88881f440000(0000) knlGS:0000000000000000
        CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
        CR2: 00007fec1b060d80 CR3: 00000003acf94005 CR4: 00000000003706e0
        DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
        DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
        Call Trace:
         <IRQ>
         tcp_try_coalesce+0xeb/0x290
         ? tcp_parse_options+0x610/0x610
         ? mark_held_locks+0x79/0xa0
         tcp_queue_rcv+0x69/0x2f0
         tcp_rcv_established+0xa49/0xd40
         ? tcp_data_queue+0x18a0/0x18a0
         tcp_v6_do_rcv+0x1c9/0x880
         ? rt6_mtu_change_route+0x100/0x100
         tcp_v6_rcv+0x1624/0x1830
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      84882cf7
    • Linus Torvalds's avatar
      Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · bfc484fe
      Linus Torvalds authored
      Pull crypto updates from Herbert Xu:
       "API:
      
         - Delay boot-up self-test for built-in algorithms
      
        Algorithms:
      
         - Remove fallback path on arm64 as SIMD now runs with softirq off
      
        Drivers:
      
         - Add Keem Bay OCS ECC Driver"
      
      * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (61 commits)
        crypto: testmgr - fix wrong key length for pkcs1pad
        crypto: pcrypt - Delay write to padata->info
        crypto: ccp - Make use of the helper macro kthread_run()
        crypto: sa2ul - Use the defined variable to clean code
        crypto: s5p-sss - Add error handling in s5p_aes_probe()
        crypto: keembay-ocs-ecc - Add Keem Bay OCS ECC Driver
        dt-bindings: crypto: Add Keem Bay ECC bindings
        crypto: ecc - Export additional helper functions
        crypto: ecc - Move ecc.h to include/crypto/internal
        crypto: engine - Add KPP Support to Crypto Engine
        crypto: api - Do not create test larvals if manager is disabled
        crypto: tcrypt - fix skcipher multi-buffer tests for 1420B blocks
        hwrng: s390 - replace snprintf in show functions with sysfs_emit
        crypto: octeontx2 - set assoclen in aead_do_fallback()
        crypto: ccp - Fix whitespace in sev_cmd_buffer_len()
        hwrng: mtk - Force runtime pm ops for sleep ops
        crypto: testmgr - Only disable migration in crypto_disable_simd_for_test()
        crypto: qat - share adf_enable_pf2vf_comms() from adf_pf2vf_msg.c
        crypto: qat - extract send and wait from adf_vf2pf_request_version()
        crypto: qat - add VF and PF wrappers to common send function
        ...
      bfc484fe
    • Linus Torvalds's avatar
      Merge tag 'audit-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit · d2fac0af
      Linus Torvalds authored
      Pull audit updates from Paul Moore:
       "Add some additional audit logging to capture the openat2() syscall
        open_how struct info.
      
        Previous variations of the open()/openat() syscalls allowed audit
        admins to inspect the syscall args to get the information contained in
        the new open_how struct used in openat2()"
      
      * tag 'audit-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
        audit: return early if the filter rule has a lower priority
        audit: add OPENAT2 record to list "how" info
        audit: add support for the openat2 syscall
        audit: replace magic audit syscall class numbers with macros
        lsm_audit: avoid overloading the "key" audit field
        audit: Convert to SPDX identifier
        audit: rename struct node to struct audit_node to prevent future name collisions
      d2fac0af
    • Linus Torvalds's avatar
      Merge tag 'selinux-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux · cdab10bf
      Linus Torvalds authored
      Pull selinux updates from Paul Moore:
      
       - Add LSM/SELinux/Smack controls and auditing for io-uring.
      
         As usual, the individual commit descriptions have more detail, but we
         were basically missing two things which we're adding here:
      
            + establishment of a proper audit context so that auditing of
              io-uring ops works similarly to how it does for syscalls (with
              some io-uring additions because io-uring ops are *not* syscalls)
      
            + additional LSM hooks to enable access control points for some of
              the more unusual io-uring features, e.g. credential overrides.
      
         The additional audit callouts and LSM hooks were done in conjunction
         with the io-uring folks, based on conversations and RFC patches
         earlier in the year.
      
       - Fixup the binder credential handling so that the proper credentials
         are used in the LSM hooks; the commit description and the code
         comment which is removed in these patches are helpful to understand
         the background and why this is the proper fix.
      
       - Enable SELinux genfscon policy support for securityfs, allowing
         improved SELinux filesystem labeling for other subsystems which make
         use of securityfs, e.g. IMA.
      
      * tag 'selinux-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
        security: Return xattr name from security_dentry_init_security()
        selinux: fix a sock regression in selinux_ip_postroute_compat()
        binder: use cred instead of task for getsecid
        binder: use cred instead of task for selinux checks
        binder: use euid from cred instead of using task
        LSM: Avoid warnings about potentially unused hook variables
        selinux: fix all of the W=1 build warnings
        selinux: make better use of the nf_hook_state passed to the NF hooks
        selinux: fix race condition when computing ocontext SIDs
        selinux: remove unneeded ipv6 hook wrappers
        selinux: remove the SELinux lockdown implementation
        selinux: enable genfscon labeling for securityfs
        Smack: Brutalist io_uring support
        selinux: add support for the io_uring access controls
        lsm,io_uring: add LSM hooks to io_uring
        io_uring: convert io_uring to the secure anon inode interface
        fs: add anon_inode_getfile_secure() similar to anon_inode_getfd_secure()
        audit: add filtering for io_uring records
        audit,io_uring,io-wq: add some basic audit support to io_uring
        audit: prepare audit_context for use in calling contexts beyond syscalls
      cdab10bf
    • Linus Torvalds's avatar
      Merge tag 'rcu.2021.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu · 6fedc280
      Linus Torvalds authored
      Pull RCU updates from Paul McKenney:
      
       - Miscellaneous fixes
      
       - Torture-test updates for smp_call_function(), most notably improved
         checking of module parameters.
      
       - Tasks-trace RCU updates that fix a number of rare but important
         race-condition bugs.
      
       - Other torture-test updates, most notably better checking of module
         parameters. In addition, rcutorture may once again be run on
         CONFIG_PREEMPT_RT kernels.
      
       - Torture-test scripting updates, most notably specifying the new
         CONFIG_KCSAN_STRICT kconfig option rather than maintaining an
         ever-changing list of individual KCSAN kconfig options.
      
      * tag 'rcu.2021.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (46 commits)
        rcu: Fix rcu_dynticks_curr_cpu_in_eqs() vs noinstr
        rcu: Always inline rcu_dynticks_task*_{enter,exit}()
        torture: Make kvm-remote.sh print size of downloaded tarball
        torture: Allot 1G of memory for scftorture runs
        tools/rcu: Add an extract-stall script
        scftorture: Warn on individual scf_torture_init() error conditions
        scftorture: Count reschedule IPIs
        scftorture: Account for weight_resched when checking for all zeroes
        scftorture: Shut down if nonsensical arguments given
        scftorture: Allow zero weight to exclude an smp_call_function*() category
        rcu: Avoid unneeded function call in rcu_read_unlock()
        rcu-tasks: Update comments to cond_resched_tasks_rcu_qs()
        rcu-tasks: Fix IPI failure handling in trc_wait_for_one_reader
        rcu-tasks: Fix read-side primitives comment for call_rcu_tasks_trace
        rcu-tasks: Clarify read side section info for rcu_tasks_rude GP primitives
        rcu-tasks: Correct comparisons for CPU numbers in show_stalled_task_trace
        rcu-tasks: Correct firstreport usage in check_all_holdout_tasks_trace
        rcu-tasks: Fix s/rcu_add_holdout/trc_add_holdout/ typo in comment
        rcu-tasks: Move RTGS_WAIT_CBS to beginning of rcu_tasks_kthread() loop
        rcu-tasks: Fix s/instruction/instructions/ typo in comment
        ...
      6fedc280
    • Linus Torvalds's avatar
      Merge tag 'trace-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 79ef0c00
      Linus Torvalds authored
      Pull tracing updates from Steven Rostedt:
      
       - kprobes: Restructured stack unwinder to show properly on x86 when a
         stack dump happens from a kretprobe callback.
      
       - Fix to bootconfig parsing
      
       - Have tracefs allow owner and group permissions by default (only
         denying others). There's been pressure to allow non root to tracefs
         in a controlled fashion, and using groups is probably the safest.
      
       - Bootconfig memory managament updates.
      
       - Bootconfig clean up to have the tools directory be less dependent on
         changes in the kernel tree.
      
       - Allow perf to be traced by function tracer.
      
       - Rewrite of function graph tracer to be a callback from the function
         tracer instead of having its own trampoline (this change will happen
         on an arch by arch basis, and currently only x86_64 implements it).
      
       - Allow multiple direct trampolines (bpf hooks to functions) be batched
         together in one synchronization.
      
       - Allow histogram triggers to add variables that can perform
         calculations against the event's fields.
      
       - Use the linker to determine architecture callbacks from the ftrace
         trampoline to allow for proper parameter prototypes and prevent
         warnings from the compiler.
      
       - Extend histogram triggers to key off of variables.
      
       - Have trace recursion use bit magic to determine preempt context over
         if branches.
      
       - Have trace recursion disable preemption as all use cases do anyway.
      
       - Added testing for verification of tracing utilities.
      
       - Various small clean ups and fixes.
      
      * tag 'trace-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (101 commits)
        tracing/histogram: Fix semicolon.cocci warnings
        tracing/histogram: Fix documentation inline emphasis warning
        tracing: Increase PERF_MAX_TRACE_SIZE to handle Sentinel1 and docker together
        tracing: Show size of requested perf buffer
        bootconfig: Initialize ret in xbc_parse_tree()
        ftrace: do CPU checking after preemption disabled
        ftrace: disable preemption when recursion locked
        tracing/histogram: Document expression arithmetic and constants
        tracing/histogram: Optimize division by a power of 2
        tracing/histogram: Covert expr to const if both operands are constants
        tracing/histogram: Simplify handling of .sym-offset in expressions
        tracing: Fix operator precedence for hist triggers expression
        tracing: Add division and multiplication support for hist triggers
        tracing: Add support for creating hist trigger variables from literal
        selftests/ftrace: Stop tracing while reading the trace file by default
        MAINTAINERS: Update KPROBES and TRACING entries
        test_kprobes: Move it from kernel/ to lib/
        docs, kprobes: Remove invalid URL and add new reference
        samples/kretprobes: Fix return value if register_kretprobe() failed
        lib/bootconfig: Fix the xbc_get_info kerneldoc
        ...
      79ef0c00
    • Jakub Kicinski's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 8a33dcc2
      Jakub Kicinski authored
      Merge in the fixes we had queued in case there was another -rc.
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      8a33dcc2
    • Jakub Kicinski's avatar
      Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next · b7b98f86
      Jakub Kicinski authored
      Alexei Starovoitov says:
      
      ====================
      pull-request: bpf-next 2021-11-01
      
      We've added 181 non-merge commits during the last 28 day(s) which contain
      a total of 280 files changed, 11791 insertions(+), 5879 deletions(-).
      
      The main changes are:
      
      1) Fix bpf verifier propagation of 64-bit bounds, from Alexei.
      
      2) Parallelize bpf test_progs, from Yucong and Andrii.
      
      3) Deprecate various libbpf apis including af_xdp, from Andrii, Hengqi, Magnus.
      
      4) Improve bpf selftests on s390, from Ilya.
      
      5) bloomfilter bpf map type, from Joanne.
      
      6) Big improvements to JIT tests especially on Mips, from Johan.
      
      7) Support kernel module function calls from bpf, from Kumar.
      
      8) Support typeless and weak ksym in light skeleton, from Kumar.
      
      9) Disallow unprivileged bpf by default, from Pawan.
      
      10) BTF_KIND_DECL_TAG support, from Yonghong.
      
      11) Various bpftool cleanups, from Quentin.
      
      * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (181 commits)
        libbpf: Deprecate AF_XDP support
        kbuild: Unify options for BTF generation for vmlinux and modules
        selftests/bpf: Add a testcase for 64-bit bounds propagation issue.
        bpf: Fix propagation of signed bounds from 64-bit min/max into 32-bit.
        bpf: Fix propagation of bounds from 64-bit min/max into 32-bit and var_off.
        selftests/bpf: Fix also no-alu32 strobemeta selftest
        bpf: Add missing map_delete_elem method to bloom filter map
        selftests/bpf: Add bloom map success test for userspace calls
        bpf: Add alignment padding for "map_extra" + consolidate holes
        bpf: Bloom filter map naming fixups
        selftests/bpf: Add test cases for struct_ops prog
        bpf: Add dummy BPF STRUCT_OPS for test purpose
        bpf: Factor out helpers for ctx access checking
        bpf: Factor out a helper to prepare trampoline for struct_ops prog
        selftests, bpf: Fix broken riscv build
        riscv, libbpf: Add RISC-V (RV64) support to bpf_tracing.h
        tools, build: Add RISC-V to HOSTARCH parsing
        riscv, bpf: Increase the maximum number of iterations
        selftests, bpf: Add one test for sockmap with strparser
        selftests, bpf: Fix test_txmsg_ingress_parser error
        ...
      ====================
      
      Link: https://lore.kernel.org/r/20211102013123.9005-1-alexei.starovoitov@gmail.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      b7b98f86
    • Jakub Kicinski's avatar
      Merge branch 'make-neighbor-eviction-controllable-by-userspace' · 52fa3ee0
      Jakub Kicinski authored
      James Prestwood says:
      
      ====================
      Make neighbor eviction controllable by userspace
      ====================
      
      Link: https://lore.kernel.org/r/20211101173630.300969-1-prestwoj@gmail.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      52fa3ee0
    • James Prestwood's avatar
      selftests: net: add arp_ndisc_evict_nocarrier · f86ca07e
      James Prestwood authored
      This tests the sysctl options for ARP/ND:
      
      /net/ipv4/conf/<iface>/arp_evict_nocarrier
      /net/ipv4/conf/all/arp_evict_nocarrier
      /net/ipv6/conf/<iface>/ndisc_evict_nocarrier
      /net/ipv6/conf/all/ndisc_evict_nocarrier
      Signed-off-by: default avatarJames Prestwood <prestwoj@gmail.com>
      Reviewed-by: default avatarDavid Ahern <dsahern@kernel.org>
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      f86ca07e
    • James Prestwood's avatar
      net: ndisc: introduce ndisc_evict_nocarrier sysctl parameter · 18ac597a
      James Prestwood authored
      In most situations the neighbor discovery cache should be cleared on a
      NOCARRIER event which is currently done unconditionally. But for wireless
      roams the neighbor discovery cache can and should remain intact since
      the underlying network has not changed.
      
      This patch introduces a sysctl option ndisc_evict_nocarrier which can
      be disabled by a wireless supplicant during a roam. This allows packets
      to be sent after a roam immediately without having to wait for
      neighbor discovery.
      
      A user reported roughly a 1 second delay after a roam before packets
      could be sent out (note, on IPv4). This delay was due to the ARP
      cache being cleared. During testing of this same scenario using IPv6
      no delay was noticed, but regardless there is no reason to clear
      the ndisc cache for wireless roams.
      Signed-off-by: default avatarJames Prestwood <prestwoj@gmail.com>
      Reviewed-by: default avatarDavid Ahern <dsahern@kernel.org>
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      18ac597a
    • James Prestwood's avatar
      net: arp: introduce arp_evict_nocarrier sysctl parameter · fcdb44d0
      James Prestwood authored
      This change introduces a new sysctl parameter, arp_evict_nocarrier.
      When set (default) the ARP cache will be cleared on a NOCARRIER event.
      This new option has been defaulted to '1' which maintains existing
      behavior.
      
      Clearing the ARP cache on NOCARRIER is relatively new, introduced by:
      
      commit 859bd2ef
      Author: David Ahern <dsahern@gmail.com>
      Date:   Thu Oct 11 20:33:49 2018 -0700
      
          net: Evict neighbor entries on carrier down
      
      The reason for this changes is to prevent the ARP cache from being
      cleared when a wireless device roams. Specifically for wireless roams
      the ARP cache should not be cleared because the underlying network has not
      changed. Clearing the ARP cache in this case can introduce significant
      delays sending out packets after a roam.
      
      A user reported such a situation here:
      
      https://lore.kernel.org/linux-wireless/CACsRnHWa47zpx3D1oDq9JYnZWniS8yBwW1h0WAVZ6vrbwL_S0w@mail.gmail.com/
      
      After some investigation it was found that the kernel was holding onto
      packets until ARP finished which resulted in this 1 second delay. It
      was also found that the first ARP who-has was never responded to,
      which is actually what caues the delay. This change is more or less
      working around this behavior, but again, there is no reason to clear
      the cache on a roam anyways.
      
      As for the unanswered who-has, we know the packet made it OTA since
      it was seen while monitoring. Why it never received a response is
      unknown. In any case, since this is a problem on the AP side of things
      all that can be done is to work around it until it is solved.
      
      Some background on testing/reproducing the packet delay:
      
      Hardware:
       - 2 access points configured for Fast BSS Transition (Though I don't
         see why regular reassociation wouldn't have the same behavior)
       - Wireless station running IWD as supplicant
       - A device on network able to respond to pings (I used one of the APs)
      
      Procedure:
       - Connect to first AP
       - Ping once to establish an ARP entry
       - Start a tcpdump
       - Roam to second AP
       - Wait for operstate UP event, and note the timestamp
       - Start pinging
      
      Results:
      
      Below is the tcpdump after UP. It was recorded the interface went UP at
      10:42:01.432875.
      
      10:42:01.461871 ARP, Request who-has 192.168.254.1 tell 192.168.254.71, length 28
      10:42:02.497976 ARP, Request who-has 192.168.254.1 tell 192.168.254.71, length 28
      10:42:02.507162 ARP, Reply 192.168.254.1 is-at ac:86:74:55:b0:20, length 46
      10:42:02.507185 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 1, length 64
      10:42:02.507205 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 2, length 64
      10:42:02.507212 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 3, length 64
      10:42:02.507219 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 4, length 64
      10:42:02.507225 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 5, length 64
      10:42:02.507232 IP 192.168.254.71 > 192.168.254.1: ICMP echo request, id 52792, seq 6, length 64
      10:42:02.515373 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 1, length 64
      10:42:02.521399 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 2, length 64
      10:42:02.521612 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 3, length 64
      10:42:02.521941 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 4, length 64
      10:42:02.522419 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 5, length 64
      10:42:02.523085 IP 192.168.254.1 > 192.168.254.71: ICMP echo reply, id 52792, seq 6, length 64
      
      You can see the first ARP who-has went out very quickly after UP, but
      was never responded to. Nearly a second later the kernel retries and
      gets a response. Only then do the ping packets go out. If an ARP entry
      is manually added prior to UP (after the cache is cleared) it is seen
      that the first ping is never responded to, so its not only an issue with
      ARP but with data packets in general.
      
      As mentioned prior, the wireless interface was also monitored to verify
      the ping/ARP packet made it OTA which was observed to be true.
      Signed-off-by: default avatarJames Prestwood <prestwoj@gmail.com>
      Reviewed-by: default avatarDavid Ahern <dsahern@kernel.org>
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      fcdb44d0
    • Linus Torvalds's avatar
      Merge tag 'hwmon-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging · d54f4860
      Linus Torvalds authored
      Pull hwmon updates from Guenter Roeck:
       "New driver:
      
         - Maxim MAX6620
      
        Notable functional enhancements:
      
         - Add Asus WMI support to nct6775 driver, and list boards supporting
           it
      
         - Move TMP461 support from tm401 driver to lm90 driver
      
         - Add support for fanX_min, fanX_max and fanX_target to dell-smm
           driver, and clean it up while doing so
      
         - Extend mlxreg-fan driver to support multiple cooling devices and
           multiple PWM channels. Also increase number of supported fan
           tachometers.
      
         - Add a new customer ID (for ASRock) to nct6683 driver
      
         - Make temperature/voltage sensors on nct7802 configurable
      
         - Add mfg_id debugfs entry to pmbus/ibm-cffps driver
      
         - Support configurable sense resistor values in pmbus/lm25066, and
           fix various coefficients
      
         - Use generic notification mechanism in raspberrypi driver
      
        Notable cleanups:
      
         - Convert various devicetree bindings to dtschema, and add missing
           bindings
      
         - Convert i5500_temp and tmp103 drivers to
           devm_hwmon_device_register_with_info
      
         - Clean up non-bool "valid" data fields
      
         - Improve devicetree configurability for tmp421 driver"
      
      * tag 'hwmon-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (73 commits)
        hwmon: (nct7802) Add of_node_put() before return
        hwmon: (tmp401) Drop support for TMP461
        hwmon: (lm90) Add basic support for TI TMP461
        hwmon: (lm90) Introduce flag indicating extended temperature support
        hwmon: (nct6775) add ProArt X570-CREATOR WIFI.
        hwmon: (nct7802) Make temperature/voltage sensors configurable
        dt-bindings: hwmon: Add nct7802 bindings
        hwmon: (dell-smm) Speed up setting of fan speed
        hwmon: (dell-smm) Add comment explaining usage of i8k_config_data[]
        hwmon: (dell-smm) Return -ENOIOCTLCMD instead of -EINVAL
        hwmon: (dell-smm) Use strscpy_pad()
        hwmon: (dell-smm) Sort includes in alphabetical order
        hwmon: (tmp421) Add of_node_put() before return
        hwmon: (max31722) Warn about failure to put device in stand-by in .remove()
        hwmon: (acpi_power_meter) Use acpi_bus_get_acpi_device()
        hwmon: (dell-smm) Add support for fanX_min, fanX_max and fanX_target
        dt-bindings: hwmon: allow specifying channels for tmp421
        hwmon: (tmp421) ignore non-channel related DT nodes
        hwmon: (tmp421) update documentation
        hwmon: (tmp421) support HWMON_T_ENABLE
        ...
      d54f4860
    • Linus Torvalds's avatar
      Merge tag 'spi-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi · 2019295c
      Linus Torvalds authored
      Pull spi updates from Mark Brown:
       "This is quite a quiet release for SPI, there's been a bit of cleanup
        to the core from Uwe but nothing functionality wise.
      
        We have added several new drivers, Cadence XSPI, Ingenic JZ47xx,
        Qualcomm SC7280 and SC7180 and Xilinx Versal OSPI"
      
      * tag 'spi-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (41 commits)
        spi: Convert NXP flexspi to json schema
        spi: spi-geni-qcom: Add support for GPI dma
        spi: fsi: Fix contention in the FSI2SPI engine
        spi: spi-rpc-if: Check return value of rpcif_sw_init()
        spi: tegra210-quad: Put device into suspend on driver removal
        spi: tegra20-slink: Put device into suspend on driver removal
        spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe()
        spi: at91-usart: replacing legacy gpio interface for gpiod
        spi: replace snprintf in show functions with sysfs_emit
        spi: cadence: Add of_node_put() before return
        spi: orion: Add of_node_put() before goto
        spi: cadence-quadspi: fix dma_unmap_single() call
        spi: tegra20: fix build with CONFIG_PM_SLEEP=n
        spi: bcm-qspi: add support for 3-wire mode for half duplex transfer
        spi: bcm-qspi: Add mspi spcr3 32/64-bits xfer mode
        spi: Make several public functions private to spi.c
        spi: Reorder functions to simplify the next commit
        spi: Remove unused function spi_busnum_to_master()
        spi: Move comment about chipselect check to the right place
        spi: fsi: Print status on error
        ...
      2019295c
    • Linus Torvalds's avatar
      Merge tag 'regulator-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator · 1260d242
      Linus Torvalds authored
      Pull regulator updates from Mark Brown:
       "Thanks to the removal of the unused TPS80021 driver the regulator
        updates for this cycle actually have a negative diffstat.
      
        Otherwise it's been quite a quiet release, lots of fixes and small
        improvements with the biggest individual changes being several
        conversions of DT bindings to YAML format"
      
      * tag 'regulator-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (34 commits)
        regulator: Don't error out fixed regulator in regulator_sync_voltage()
        regulator: tps80031: Remove driver
        regulator: Fix SY7636A breakage
        regulator: uniphier: Add binding for NX1 SoC
        regulator: uniphier: Add USB-VBUS compatible string for NX1 SoC
        regulator: qcom,rpmh: Add compatible for PM6350
        regulator: qcom-rpmh: Add PM6350 regulators
        regulator: sy7636a: Remove requirement on sy7636a mfd
        regulator: tps62360: replacing legacy gpio interface for gpiod
        regulator: lp872x: Remove lp872x_dvs_state
        regulator: lp872x: replacing legacy gpio interface for gpiod
        regulator: dt-bindings: samsung,s5m8767: convert to dtschema
        regulator: dt-bindings: samsung,s2mpa01: convert to dtschema
        regulator: dt-bindings: samsung,s2m: convert to dtschema
        dt-bindings: clock: samsung,s2mps11: convert to dtschema
        regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property
        regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is disabled
        regulator: dt-bindings: maxim,max8973: convert to dtschema
        regulator: dt-bindings: maxim,max8997: convert to dtschema
        regulator: dt-bindings: maxim,max8952: convert to dtschema
        ...
      1260d242
    • Linus Torvalds's avatar
      Merge tag 'regmap-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap · d2cdb122
      Linus Torvalds authored
      Pull regmap update from Mark Brown:
       "A single change to use the maximum transfer and message sizes
        advertised by SPI controllers to configure limits within the
        regmap core, ensuring better interoperation"
      
      * tag 'regmap-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
        regmap: spi: Set regmap max raw r/w from max_transfer_size
      d2cdb122
    • Linus Torvalds's avatar
      Merge tag 'mailbox-v5.16' of git://git.linaro.org/landing-teams/working/fujitsu/integration · 247ee3e7
      Linus Torvalds authored
      Pull mailbox updates from Jassi Brar:
       "qcom:
         - add support for qcm2290
         - consolidate msm8994 type apcs_data
      
        mtk:
         - fix clock id usage
      
        apple:
         - add driver for ASC/M3 controllers
      
        pcc:
         - reorganise PCC pcc_mbox_request_channel
         - add support for PCCT extended PCC subspaces
      
        misc:
         - make use of devm_platform_ioremap_resource()
         - change Altera, PCC and Apple mailbox maintainers"
      
      * tag 'mailbox-v5.16' of git://git.linaro.org/landing-teams/working/fujitsu/integration: (38 commits)
        mailbox: imx: support i.MX8ULP S4 MU
        dt-bindings: mailbox: imx-mu: add i.MX8ULP S400 MU support
        ACPI/PCC: Add maintainer for PCC mailbox driver
        mailbox: pcc: Move bulk of PCCT parsing into pcc_mbox_probe
        mailbox: pcc: Add support for PCCT extended PCC subspaces(type 3/4)
        mailbox: pcc: Drop handling invalid bit-width in {read,write}_register
        mailbox: pcc: Avoid accessing PCCT table in pcc_send_data and pcc_mbox_irq
        mailbox: pcc: Add PCC register bundle and associated accessor functions
        mailbox: pcc: Rename doorbell ack to platform interrupt ack register
        mailbox: pcc: Use PCC mailbox channel pointer instead of standard
        mailbox: pcc: Add pcc_mbox_chan structure to hold shared memory region info
        mailbox: pcc: Consolidate subspace doorbell register parsing
        mailbox: pcc: Consolidate subspace interrupt information parsing
        mailbox: pcc: Refactor all PCC channel information into a structure
        mailbox: pcc: Fix kernel doc warnings
        mailbox: apple: Add driver for Apple mailboxes
        dt-bindings: mailbox: Add Apple mailbox bindings
        MAINTAINERS: Add Apple mailbox files
        mailbox: mtk-cmdq: Fix local clock ID usage
        mailbox: mtk-cmdq: Validate alias_id on probe
        ...
      247ee3e7
    • Linus Torvalds's avatar
      Merge tag 'mmc-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · 8a73c77c
      Linus Torvalds authored
      Pull MMC and MEMSTICK updates from Ulf Hansson:
       "MMC core:
         - Update maintainer and URL for the mmc-utils
         - Set default label for slot-gpio in case of no con-id
         - Convert MMC card DT bindings to a schema
         - Add optional host specific tuning support for eMMC HS400
         - Add error handling of add_disk()
      
        MMC host:
         - mtk-sd: Add host specific tuning support for eMMC HS400
         - mtk-sd: Make DMA handling more robust
         - dw_mmc: Prevent hangs for some data writes
         - dw_mmc: Move away from using the ->init_card() callback
         - mxs-mmc: Manage the regulator in the error path and in ->remove()
         - sdhci-cadence: Add support for the Microchip MPFS variant
         - sdhci-esdhc-imx: Add support for the NXP S32G2 variant
         - sdhci-of-arasan: Add support for the Intel Thunder Bay variant
         - sdhci-omap: Prepare to support more SoCs
         - sdhci-omap: Add support for omap3 and omap4 variants
         - sdhci-omap: Add support for power management
         - sdhci-omap: Add support for system wakeups
         - sdhci-msm: Add support for the msm8226 variant
         - sdhci-sprd: Verify that the DLL locks according to spec
      
        MEMSTICK:
         - Add error handling of add_disk()
         - A couple of small fixes and improvements"
      
      * tag 'mmc-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (60 commits)
        docs: mmc: update maintainer name and URL
        mmc: dw_mmc: exynos: Fix spelling mistake "candiates" -> candidates
        MAINTAINERS: drop obsolete file pattern in SDHCI DRIVER section
        mmc: sdhci-esdhc-imx: add NXP S32G2 support
        dt-bindings: mmc: fsl-imx-esdhc: add NXP S32G2 support
        mmc: dw_mmc: Drop use of ->init_card() callback
        mmc: sdhci-omap: Fix build if CONFIG_PM_SLEEP is not set
        mmc: sdhci-omap: Remove forward declaration of sdhci_omap_context_save()
        memstick: r592: Fix a UAF bug when removing the driver
        mmc: mxs-mmc: disable regulator on error and in the remove function
        mmc: sdhci-omap: Configure optional wakeirq
        mmc: sdhci-omap: Allow SDIO card power off and enable aggressive PM
        mmc: sdhci-omap: Implement PM runtime functions
        mmc: sdhci-omap: Add omap_offset to support omap3 and earlier
        mmc: sdhci-omap: Handle voltages to add support omap4
        dt-bindings: sdhci-omap: Update binding for legacy SoCs
        mmc: sdhci-pci: Remove dead code (rst_n_gpio et al)
        mmc: sdhci-pci: Remove dead code (cd_gpio, cd_irq et al)
        mmc: sdhci-pci: Remove dead code (struct sdhci_pci_data et al)
        mmc: sdhci: Remove unused prototype declaration in the header
        ...
      8a73c77c
    • Linus Torvalds's avatar
      Merge tag 'for-linus-5.16-1' of https://github.com/cminyard/linux-ipmi · 316b7eaa
      Linus Torvalds authored
      Pull IPMI driver updates from Corey Minyard:
       "A new type of low-level IPMI driver is added for direct communication
        over the IPMI message bus without a BMC between the driver and the
        bus.
      
        Other than that, lots of little bug fixes and enhancements"
      
      * tag 'for-linus-5.16-1' of https://github.com/cminyard/linux-ipmi:
        ipmi: kcs_bmc: Fix a memory leak in the error handling path of 'kcs_bmc_serio_add_device()'
        char: ipmi: replace snprintf in show functions with sysfs_emit
        ipmi: ipmb: fix dependencies to eliminate build error
        ipmi:ipmb: Add OF support
        ipmi: bt: Add ast2600 compatible string
        ipmi: bt-bmc: Use registers directly
        ipmi: ipmb: Fix off-by-one size check on rcvlen
        ipmi:ssif: Use depends on, not select, for I2C
        ipmi: Add docs for the IPMI IPMB driver
        ipmi: Add docs for IPMB direct addressing
        ipmi:ipmb: Add initial support for IPMI over IPMB
        ipmi: Add support for IPMB direct messages
        ipmi: Export ipmb_checksum()
        ipmi: Fix a typo
        ipmi: Check error code before processing BMC response
        ipmi:devintf: Return a proper error when recv buffer too small
        ipmi: Disable some operations during a panic
        ipmi:watchdog: Set panic count to proper value on a panic
      316b7eaa
    • Linus Torvalds's avatar
      Merge tag 'leds-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds · 4dee0606
      Linus Torvalds authored
      Pull LED updates from Pavel Machek:
       "Johannes pointed out that locking is still problematic with triggers
        list, attempt to solve that by using RCU"
      
      * tag 'leds-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
        leds: trigger: Disable CPU trigger on PREEMPT_RT
        leds: trigger: use RCU to protect the led_cdevs list
        led-class-flash: fix -Wrestrict warning
      4dee0606
    • Linus Torvalds's avatar
      Merge tag 'media/v5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media · 73d21a35
      Linus Torvalds authored
      Pull media updates from Mauro Carvalho Chehab:
      
       - New driver for SK Hynix Hi-846 8M pixel camera
      
       - New driver for the ov13b10 camera
      
       - New driver for Renesas R-Car ISP
      
       - mtk-vcodec gained support for version 2 of decoder firmware ABI
      
       - The legacy sir_ir driver got removed
      
       - videobuf2: the vb2_mem_ops kAPI had some improvements
      
       - lots of cleanups, fixes and new features at device drivers
      
      * tag 'media/v5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (328 commits)
        media: venus: core: Add sdm660 DT compatible and resource struct
        media: dt-bindings: media: venus: Add sdm660 dt schema
        media: venus: vdec: decoded picture buffer handling during reconfig sequence
        media: venus: Handle fatal errors during encoding and decoding
        media: venus: helpers: Add helper to mark fatal vb2 error
        media: venus: hfi: Check for sys error on session hfi functions
        media: venus: Make sys_error flag an atomic bitops
        media: venus: venc: Use pmruntime autosuspend
        media: allegro: write vui parameters for HEVC
        media: allegro: nal-hevc: implement generator for vui
        media: allegro: write correct colorspace into SPS
        media: allegro: extract nal value lookup functions to header
        media: allegro: correctly scale the bit rate in SPS
        media: allegro: remove external QP table
        media: allegro: fix row and column in response message
        media: allegro: add control to disable encoder buffer
        media: allegro: add encoder buffer support
        media: allegro: add pm_runtime support
        media: allegro: lookup VCU settings
        media: allegro: fix module removal if initialization failed
        ...
      73d21a35
    • Magnus Karlsson's avatar
      libbpf: Deprecate AF_XDP support · 0b170456
      Magnus Karlsson authored
      Deprecate AF_XDP support in libbpf ([0]). This has been moved to
      libxdp as it is a better fit for that library. The AF_XDP support only
      uses the public libbpf functions and can therefore just use libbpf as
      a library from libxdp. The libxdp APIs are exactly the same so it
      should just be linking with libxdp instead of libbpf for the AF_XDP
      functionality. If not, please submit a bug report. Linking with both
      libraries is supported but make sure you link in the correct order so
      that the new functions in libxdp are used instead of the deprecated
      ones in libbpf.
      
      Libxdp can be found at https://github.com/xdp-project/xdp-tools.
      
        [0] Closes: https://github.com/libbpf/libbpf/issues/270Signed-off-by: default avatarMagnus Karlsson <magnus.karlsson@intel.com>
      Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
      Acked-by: default avatarToke Høiland-Jørgensen <toke@redhat.com>
      Link: https://lore.kernel.org/bpf/20211029090111.4733-1-magnus.karlsson@gmail.com
      0b170456
    • Jiri Olsa's avatar
      kbuild: Unify options for BTF generation for vmlinux and modules · 9741e07e
      Jiri Olsa authored
      Using new PAHOLE_FLAGS variable to pass extra arguments to
      pahole for both vmlinux and modules BTF data generation.
      
      Adding new scripts/pahole-flags.sh script that detect and
      prints pahole options.
      
      [ fixed issues found by kernel test robot ]
      Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
      Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
      Acked-by: default avatarAndrii Nakryiko <andrii@kernel.org>
      Link: https://lore.kernel.org/bpf/20211029125729.70002-1-jolsa@kernel.org
      9741e07e