27 Jan, 2021

1 commit

  • DMA_VIRTUAL_CHANNELS depends on DMADEVICES and DMA_VIRTUAL_CHANNELS
    is selected by GKI_HIDDEN_SND_SOC_CONFIGS.

    To fix unmet dependency in x86_64, select DMADEVICES under
    GKI_HIDDEN_SND_SOC_CONFIGS.

    Also, drop CONFIG_DMADEVICES=y in arch/arm64/configs/gki_defconfig.

    WARNING: unmet direct dependencies detected for DMA_VIRTUAL_CHANNELS
    Depends on [n]: DMADEVICES [=n]
    Selected by [y]:
    - GKI_HIDDEN_SND_SOC_CONFIGS [=y]

    Bug: 174628645
    Signed-off-by: Miles Chen
    Change-Id: I1de491c10542f1b7c9c8754c65415b028d3bc922

    Miles Chen
     

25 Jan, 2021

2 commits


20 Jan, 2021

2 commits

  • Changes in 5.10.9
    btrfs: reloc: fix wrong file extent type check to avoid false ENOENT
    btrfs: prevent NULL pointer dereference in extent_io_tree_panic
    ALSA: hda/realtek: fix right sounds and mute/micmute LEDs for HP machines
    ALSA: doc: Fix reference to mixart.rst
    ASoC: AMD Renoir - add DMI entry for Lenovo ThinkPad X395
    ASoC: dapm: remove widget from dirty list on free
    x86/hyperv: check cpu mask after interrupt has been disabled
    drm/amdgpu: add green_sardine device id (v2)
    drm/amdgpu: fix DRM_INFO flood if display core is not supported (bug 210921)
    Revert "drm/amd/display: Fixed Intermittent blue screen on OLED panel"
    drm/amdgpu: add new device id for Renior
    drm/i915: Allow the sysadmin to override security mitigations
    drm/i915/gt: Limit VFE threads based on GT
    drm/i915/backlight: fix CPU mode backlight takeover on LPT
    drm/bridge: sii902x: Refactor init code into separate function
    dt-bindings: display: sii902x: Add supply bindings
    drm/bridge: sii902x: Enable I/O and core VCC supplies if present
    tracing/kprobes: Do the notrace functions check without kprobes on ftrace
    tools/bootconfig: Add tracing_on support to helper scripts
    ext4: use IS_ERR instead of IS_ERR_OR_NULL and set inode null when IS_ERR
    ext4: fix wrong list_splice in ext4_fc_cleanup
    ext4: fix bug for rename with RENAME_WHITEOUT
    cifs: check pointer before freeing
    cifs: fix interrupted close commands
    riscv: Drop a duplicated PAGE_KERNEL_EXEC
    riscv: return -ENOSYS for syscall -1
    riscv: Fixup CONFIG_GENERIC_TIME_VSYSCALL
    riscv: Fix KASAN memory mapping.
    mips: fix Section mismatch in reference
    mips: lib: uncached: fix non-standard usage of variable 'sp'
    MIPS: boot: Fix unaligned access with CONFIG_MIPS_RAW_APPENDED_DTB
    MIPS: Fix malformed NT_FILE and NT_SIGINFO in 32bit coredumps
    MIPS: relocatable: fix possible boot hangup with KASLR enabled
    RDMA/ocrdma: Fix use after free in ocrdma_dealloc_ucontext_pd()
    ACPI: scan: Harden acpi_device_add() against device ID overflows
    xen/privcmd: allow fetching resource sizes
    compiler.h: Raise minimum version of GCC to 5.1 for arm64
    mm/vmalloc.c: fix potential memory leak
    mm/hugetlb: fix potential missing huge page size info
    mm/process_vm_access.c: include compat.h
    dm raid: fix discard limits for raid1
    dm snapshot: flush merged data before committing metadata
    dm integrity: fix flush with external metadata device
    dm integrity: fix the maximum number of arguments
    dm crypt: use GFP_ATOMIC when allocating crypto requests from softirq
    dm crypt: do not wait for backlogged crypto request completion in softirq
    dm crypt: do not call bio_endio() from the dm-crypt tasklet
    dm crypt: defer decryption to a tasklet if interrupts disabled
    stmmac: intel: change all EHL/TGL to auto detect phy addr
    r8152: Add Lenovo Powered USB-C Travel Hub
    btrfs: tree-checker: check if chunk item end overflows
    ext4: don't leak old mountpoint samples
    io_uring: don't take files/mm for a dead task
    io_uring: drop mm and files after task_work_run
    ARC: build: remove non-existing bootpImage from KBUILD_IMAGE
    ARC: build: add uImage.lzma to the top-level target
    ARC: build: add boot_targets to PHONY
    ARC: build: move symlink creation to arch/arc/Makefile to avoid race
    ARM: omap2: pmic-cpcap: fix maximum voltage to be consistent with defaults on xt875
    ath11k: fix crash caused by NULL rx_channel
    netfilter: ipset: fixes possible oops in mtype_resize
    ath11k: qmi: try to allocate a big block of DMA memory first
    btrfs: fix async discard stall
    btrfs: merge critical sections of discard lock in workfn
    btrfs: fix transaction leak and crash after RO remount caused by qgroup rescan
    regulator: bd718x7: Add enable times
    ethernet: ucc_geth: fix definition and size of ucc_geth_tx_global_pram
    ARM: dts: ux500/golden: Set display max brightness
    habanalabs: adjust pci controller init to new firmware
    habanalabs/gaudi: retry loading TPC f/w on -EINTR
    habanalabs: register to pci shutdown callback
    staging: spmi: hisi-spmi-controller: Fix some error handling paths
    spi: altera: fix return value for altera_spi_txrx()
    habanalabs: Fix memleak in hl_device_reset
    hwmon: (pwm-fan) Ensure that calculation doesn't discard big period values
    lib/raid6: Let $(UNROLL) rules work with macOS userland
    kconfig: remove 'kvmconfig' and 'xenconfig' shorthands
    spi: fix the divide by 0 error when calculating xfer waiting time
    io_uring: drop file refs after task cancel
    bfq: Fix computation of shallow depth
    arch/arc: add copy_user_page() to to fix build error on ARC
    misdn: dsp: select CONFIG_BITREVERSE
    net: ethernet: fs_enet: Add missing MODULE_LICENSE
    selftests: fix the return value for UDP GRO test
    nvme-pci: mark Samsung PM1725a as IGNORE_DEV_SUBNQN
    nvme: avoid possible double fetch in handling CQE
    nvmet-rdma: Fix list_del corruption on queue establishment failure
    drm/amd/display: fix sysfs amdgpu_current_backlight_pwm NULL pointer issue
    drm/amdgpu: fix a GPU hang issue when remove device
    drm/amd/pm: fix the failure when change power profile for renoir
    drm/amdgpu: fix potential memory leak during navi12 deinitialization
    usb: typec: Fix copy paste error for NVIDIA alt-mode description
    iommu/vt-d: Fix lockdep splat in sva bind()/unbind()
    ACPI: scan: add stub acpi_create_platform_device() for !CONFIG_ACPI
    drm/msm: Call msm_init_vram before binding the gpu
    ARM: picoxcell: fix missing interrupt-parent properties
    poll: fix performance regression due to out-of-line __put_user()
    rcu-tasks: Move RCU-tasks initialization to before early_initcall()
    bpf: Simplify task_file_seq_get_next()
    bpf: Save correct stopping point in file seq iteration
    x86/sev-es: Fix SEV-ES OUT/IN immediate opcode vc handling
    cfg80211: select CONFIG_CRC32
    nvme-fc: avoid calling _nvme_fc_abort_outstanding_ios from interrupt context
    iommu/vt-d: Update domain geometry in iommu_ops.at(de)tach_dev
    net/mlx5e: CT: Use per flow counter when CT flow accounting is enabled
    net/mlx5: Fix passing zero to 'PTR_ERR'
    net/mlx5: E-Switch, fix changing vf VLANID
    blk-mq-debugfs: Add decode for BLK_MQ_F_TAG_HCTX_SHARED
    mm: fix clear_refs_write locking
    mm: don't play games with pinned pages in clear_page_refs
    mm: don't put pinned pages into the swap cache
    perf intel-pt: Fix 'CPU too large' error
    dump_common_audit_data(): fix racy accesses to ->d_name
    ASoC: meson: axg-tdm-interface: fix loopback
    ASoC: meson: axg-tdmin: fix axg skew offset
    ASoC: Intel: fix error code cnl_set_dsp_D0()
    nvmet-rdma: Fix NULL deref when setting pi_enable and traddr INADDR_ANY
    nvme: don't intialize hwmon for discovery controllers
    nvme-tcp: fix possible data corruption with bio merges
    nvme-tcp: Fix warning with CONFIG_DEBUG_PREEMPT
    NFS4: Fix use-after-free in trace_event_raw_event_nfs4_set_lock
    pNFS: We want return-on-close to complete when evicting the inode
    pNFS: Mark layout for return if return-on-close was not sent
    pNFS: Stricter ordering of layoutget and layoutreturn
    NFS: Adjust fs_context error logging
    NFS/pNFS: Don't call pnfs_free_bucket_lseg() before removing the request
    NFS/pNFS: Don't leak DS commits in pnfs_generic_retry_commit()
    NFS/pNFS: Fix a leak of the layout 'plh_outstanding' counter
    NFS: nfs_delegation_find_inode_server must first reference the superblock
    NFS: nfs_igrab_and_active must first reference the superblock
    scsi: ufs: Fix possible power drain during system suspend
    ext4: fix superblock checksum failure when setting password salt
    RDMA/restrack: Don't treat as an error allocation ID wrapping
    RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp
    bnxt_en: Improve stats context resource accounting with RDMA driver loaded.
    RDMA/mlx5: Fix wrong free of blue flame register on error
    IB/mlx5: Fix error unwinding when set_has_smi_cap fails
    umount(2): move the flag validity checks first
    dm zoned: select CONFIG_CRC32
    drm/i915/dsi: Use unconditional msleep for the panel_on_delay when there is no reset-deassert MIPI-sequence
    drm/i915/icl: Fix initing the DSI DSC power refcount during HW readout
    drm/i915/gt: Restore clear-residual mitigations for Ivybridge, Baytrail
    mm, slub: consider rest of partial list if acquire_slab() fails
    riscv: Trace irq on only interrupt is enabled
    iommu/vt-d: Fix unaligned addresses for intel_flush_svm_range_dev()
    net: sunrpc: interpret the return value of kstrtou32 correctly
    selftests: netfilter: Pass family parameter "-f" to conntrack tool
    dm: eliminate potential source of excessive kernel log noise
    ALSA: fireface: Fix integer overflow in transmit_midi_msg()
    ALSA: firewire-tascam: Fix integer overflow in midi_port_work()
    netfilter: conntrack: fix reading nf_conntrack_buckets
    netfilter: nf_nat: Fix memleak in nf_nat_init
    Linux 5.10.9

    Signed-off-by: Greg Kroah-Hartman
    Change-Id: I609e501511889081e03d2d18ee7e1be95406f396

    Greg Kroah-Hartman
     
  • [ Upstream commit 1b04fa9900263b4e217ca2509fd778b32c2b4eb2 ]

    PowerPC testing encountered boot failures due to RCU Tasks not being
    fully initialized until core_initcall() time. This commit therefore
    initializes RCU Tasks (along with Rude RCU and RCU Tasks Trace) just
    before early_initcall() time, thus allowing waiting on RCU Tasks grace
    periods from early_initcall() handlers.

    Link: https://lore.kernel.org/rcu/87eekfh80a.fsf@dja-thinkpad.axtens.net/
    Fixes: 36dadef23fcc ("kprobes: Init kprobes in early_initcall")
    Tested-by: Daniel Axtens
    Signed-off-by: Uladzislau Rezki (Sony)
    Signed-off-by: Paul E. McKenney
    Signed-off-by: Sasha Levin

    Uladzislau Rezki (Sony)
     

18 Jan, 2021

1 commit

  • it use vb2_dma_contig_memops as default mem_ops in csi driver
    drivers/media/platform/mxc/capture/mx6s_capture.c still not upstream to linux community.
    q->mem_ops = &vb2_dma_contig_memops;

    mem_ops is need in videobuf2-core.c to operate dma buffer.
    videobuf2-dma-contig.c is common code which have no hardware involved

    Bug: 160195378
    Signed-off-by: zhang sanshan
    Change-Id: Ib084ff96bd4f92aa36f8abb8d4b62a0e9be62e6c

    zhang sanshan
     

15 Jan, 2021

1 commit


13 Jan, 2021

1 commit

  • Changes in 5.10.6
    Revert "drm/amd/display: Fix memory leaks in S3 resume"
    Revert "mtd: spinand: Fix OOB read"
    rtc: pcf2127: move watchdog initialisation to a separate function
    rtc: pcf2127: only use watchdog when explicitly available
    dt-bindings: rtc: add reset-source property
    kdev_t: always inline major/minor helper functions
    Bluetooth: Fix attempting to set RPA timeout when unsupported
    ALSA: hda/realtek - Modify Dell platform name
    ALSA: hda/hdmi: Fix incorrect mutex unlock in silent_stream_disable()
    drm/i915/tgl: Fix Combo PHY DPLL fractional divider for 38.4MHz ref clock
    scsi: ufs: Allow an error return value from ->device_reset()
    scsi: ufs: Re-enable WriteBooster after device reset
    RDMA/core: remove use of dma_virt_ops
    RDMA/siw,rxe: Make emulated devices virtual in the device tree
    fuse: fix bad inode
    perf: Break deadlock involving exec_update_mutex
    rwsem: Implement down_read_killable_nested
    rwsem: Implement down_read_interruptible
    exec: Transform exec_update_mutex into a rw_semaphore
    mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start
    Linux 5.10.6

    Signed-off-by: Greg Kroah-Hartman
    Change-Id: Id4c57a151a1e8f2162163d2337b6055f04edbe9b

    Greg Kroah-Hartman
     

09 Jan, 2021

1 commit

  • [ Upstream commit f7cfd871ae0c5008d94b6f66834e7845caa93c15 ]

    Recently syzbot reported[0] that there is a deadlock amongst the users
    of exec_update_mutex. The problematic lock ordering found by lockdep
    was:

    perf_event_open (exec_update_mutex -> ovl_i_mutex)
    chown (ovl_i_mutex -> sb_writes)
    sendfile (sb_writes -> p->lock)
    by reading from a proc file and writing to overlayfs
    proc_pid_syscall (p->lock -> exec_update_mutex)

    While looking at possible solutions it occured to me that all of the
    users and possible users involved only wanted to state of the given
    process to remain the same. They are all readers. The only writer is
    exec.

    There is no reason for readers to block on each other. So fix
    this deadlock by transforming exec_update_mutex into a rw_semaphore
    named exec_update_lock that only exec takes for writing.

    Cc: Jann Horn
    Cc: Vasiliy Kulikov
    Cc: Al Viro
    Cc: Bernd Edlinger
    Cc: Oleg Nesterov
    Cc: Christopher Yeoh
    Cc: Cyrill Gorcunov
    Cc: Sargun Dhillon
    Cc: Christian Brauner
    Cc: Arnd Bergmann
    Cc: Peter Zijlstra
    Cc: Ingo Molnar
    Cc: Arnaldo Carvalho de Melo
    Fixes: eea9673250db ("exec: Add exec_update_mutex to replace cred_guard_mutex")
    [0] https://lkml.kernel.org/r/00000000000063640c05ade8e3de@google.com
    Reported-by: syzbot+db9cdf3dd1f64252c6ef@syzkaller.appspotmail.com
    Link: https://lkml.kernel.org/r/87ft4mbqen.fsf@x220.int.ebiederm.org
    Signed-off-by: Eric W. Biederman
    Signed-off-by: Sasha Levin

    Eric W. Biederman
     

17 Dec, 2020

1 commit

  • With CONFIG_LTO_CLANG, LLVM bitcode has not yet been compiled into a
    binary when the .mod files are generated, which means they don't yet
    contain references to certain symbols that will be present in the final
    binaries. This includes intrinsic functions, such as memcpy, memmove,
    and memset [1], and stack protector symbols [2]. This change adds a
    default symbol list to use with CONFIG_TRIM_UNUSED_KSYMS when Clang's
    LTO is used.

    [1] https://llvm.org/docs/LangRef.html#standard-c-c-library-intrinsics
    [2] https://llvm.org/docs/LangRef.html#llvm-stackprotector-intrinsic

    Bug: 145210207
    Change-Id: I9da92fba820c72633209e292fdc6f1c44abe7b9a
    Link: https://lore.kernel.org/lkml/20201211184633.3213045-7-samitolvanen@google.com/
    Signed-off-by: Sami Tolvanen

    Sami Tolvanen
     

12 Dec, 2020

2 commits

  • …pub/scm/linux/kernel/git/mtd/linux") into android-mainline

    Steps on the way to 5.10-final

    Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
    Change-Id: Iaf246e292babee342e89c090dad69e12e2cb4d75

    Greg Kroah-Hartman
     
  • There is only one function in init/initramfs.c that is in the .text
    section, and it is marked __weak. When building with clang-12 and the
    integrated assembler, this leads to a bug with recordmcount:

    ./scripts/recordmcount "init/initramfs.o"
    Cannot find symbol for section 2: .text.
    init/initramfs.o: failed

    I'm not quite sure what exactly goes wrong, but I notice that this
    function is only ever called from an __init function, and normally
    inlined. Marking it __init as well is clearly correct and it leads to
    recordmcount no longer complaining.

    Link: https://lkml.kernel.org/r/20201204165742.3815221-1-arnd@kernel.org
    Signed-off-by: Arnd Bergmann
    Cc: Nathan Chancellor
    Cc: Nick Desaulniers
    Cc: Barret Rhoden
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arnd Bergmann
     

09 Dec, 2020

1 commit


07 Dec, 2020

1 commit

  • …t/masahiroy/linux-kbuild

    Pull Kbuild fixes from Masahiro Yamada:

    - Move -Wcast-align to W=3, which tends to be false-positive and there
    is no tree-wide solution.

    - Pass -fmacro-prefix-map to KBUILD_CPPFLAGS because it is a
    preprocessor option and makes sense for .S files as well.

    - Disable -gdwarf-2 for Clang's integrated assembler to avoid warnings.

    - Disable --orphan-handling=warn for LLD 10.0.1 to avoid warnings.

    - Fix undesirable line breaks in *.mod files.

    * tag 'kbuild-fixes-v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
    kbuild: avoid split lines in .mod files
    kbuild: Disable CONFIG_LD_ORPHAN_WARN for ld.lld 10.0.1
    kbuild: Hoist '--orphan-handling' into Kconfig
    Kbuild: do not emit debug info for assembly with LLVM_IAS=1
    kbuild: use -fmacro-prefix-map for .S sources
    Makefile.extrawarn: move -Wcast-align to W=3

    Linus Torvalds
     

04 Dec, 2020

1 commit


03 Dec, 2020

1 commit

  • …nel/git/rostedt/linux-trace

    Pull bootconfig fixes from Steven Rostedt:
    "Have bootconfig size and checksum be little endian

    In case the bootconfig is created on one kind of endian machine, and
    then read on the other kind of endian kernel, the size and checksum
    will be incorrect. Instead, have both the size and checksum always be
    little endian and have the tool and the kernel convert it from little
    endian to or from the host endian"

    * tag 'trace-v5.10-rc6-bootconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
    docs: bootconfig: Add the endianness of fields
    tools/bootconfig: Store size and checksum in footer as le32
    bootconfig: Load size and checksum in the footer as le32

    Linus Torvalds
     

02 Dec, 2020

1 commit

  • audio driver us edma to instore data.
    fsl-edma used api in virt-dma, like vchan_init to dma opt.
    There is not hardware involved. build-in DMA_VIRTUAL_CHANNELS

    Bug: 160627323
    Bug: 174628645
    Signed-off-by: zhang sanshan
    Signed-off-by: Miles Chen
    Change-Id: I5427cb6ef3725163f396836bfd3ebe23037c06f2

    zhang sanshan
     

01 Dec, 2020

3 commits

  • ld.lld 10.0.1 spews a bunch of various warnings about .rela sections,
    along with a few others. Newer versions of ld.lld do not have these
    warnings. As a result, do not add '--orphan-handling=warn' to
    LDFLAGS_vmlinux if ld.lld's version is not new enough.

    Link: https://github.com/ClangBuiltLinux/linux/issues/1187
    Link: https://github.com/ClangBuiltLinux/linux/issues/1193
    Reported-by: Arvind Sankar
    Reported-by: kernelci.org bot
    Reported-by: Mark Brown
    Reviewed-by: Kees Cook
    Signed-off-by: Nathan Chancellor
    Reviewed-by: Nick Desaulniers
    Signed-off-by: Masahiro Yamada

    Nathan Chancellor
     
  • Currently, '--orphan-handling=warn' is spread out across four different
    architectures in their respective Makefiles, which makes it a little
    unruly to deal with in case it needs to be disabled for a specific
    linker version (in this case, ld.lld 10.0.1).

    To make it easier to control this, hoist this warning into Kconfig and
    the main Makefile so that disabling it is simpler, as the warning will
    only be enabled in a couple places (main Makefile and a couple of
    compressed boot folders that blow away LDFLAGS_vmlinx) and making it
    conditional is easier due to Kconfig syntax. One small additional
    benefit of this is saving a call to ld-option on incremental builds
    because we will have already evaluated it for CONFIG_LD_ORPHAN_WARN.

    To keep the list of supported architectures the same, introduce
    CONFIG_ARCH_WANT_LD_ORPHAN_WARN, which an architecture can select to
    gain this automatically after all of the sections are specified and size
    asserted. A special thanks to Kees Cook for the help text on this
    config.

    Link: https://github.com/ClangBuiltLinux/linux/issues/1187
    Acked-by: Kees Cook
    Acked-by: Michael Ellerman (powerpc)
    Reviewed-by: Nick Desaulniers
    Tested-by: Nick Desaulniers
    Signed-off-by: Nathan Chancellor
    Signed-off-by: Masahiro Yamada

    Nathan Chancellor
     
  • Load the size and the checksum fields in the footer as le32
    instead of u32. This will allow us to apply bootconfig to the
    cross build initrd without caring the endianness.

    Link: https://lkml.kernel.org/r/160583934457.547349.10504070298990791074.stgit@devnote2

    Reported-by: Steven Rostedt
    Suggested-by: Linus Torvalds
    Signed-off-by: Masami Hiramatsu
    Signed-off-by: Steven Rostedt (VMware)

    Masami Hiramatsu
     

28 Nov, 2020

2 commits


14 Nov, 2020

1 commit


13 Nov, 2020

1 commit

  • Since Grub may align the size of initrd to 4 if user pass
    initrd from cpio, we have to check the preceding 3 bytes as well.

    Link: https://lkml.kernel.org/r/160520205132.303174.4876760192433315429.stgit@devnote2

    Cc: stable@vger.kernel.org
    Fixes: 85c46b78da58 ("bootconfig: Add bootconfig magic word for indicating bootconfig explicitly")
    Reported-by: Chen Yu
    Tested-by: Chen Yu
    Signed-off-by: Masami Hiramatsu
    Signed-off-by: Steven Rostedt (VMware)

    Masami Hiramatsu
     

11 Nov, 2020

1 commit


03 Nov, 2020

1 commit

  • Currently, LOG_BUF_SHIFT defaults to 17, which is 2 ^ 17 bytes = 128 KB,
    and LOG_CPU_MAX_BUF_SHIFT defaults to 12, which is 2 ^ 12 bytes = 4 KB.

    Half of 128 KB is 64 KB, so more than 16 CPUs are required for the value
    to be used, as then the sum of contributions is greater than 64 KB for
    the first time. My guess is, that the description was written with the
    configuration values used in the SUSE in mind.

    Fixes: 23b2899f7f194f06e ("printk: allow increasing the ring buffer depending on the number of CPUs")
    Cc: Luis R. Rodriguez
    Cc: linux-kernel@vger.kernel.org
    Signed-off-by: Paul Menzel
    Reviewed-by: Petr Mladek
    Signed-off-by: Petr Mladek
    Link: https://lore.kernel.org/r/20200811092924.6256-1-pmenzel@molgen.mpg.de

    Paul Menzel
     

28 Oct, 2020

1 commit


26 Oct, 2020

3 commits


25 Oct, 2020

2 commits


21 Oct, 2020

1 commit


19 Oct, 2020

1 commit

  • …/kernel/git/shuah/linux-kselftest

    Pull more Kunit updates from Shuah Khan:

    - add Kunit to kernel_init() and remove KUnit from init calls entirely.

    This addresses the concern that Kunit would not work correctly during
    late init phase.

    - add a linker section where KUnit can put references to its test
    suites.

    This is the first step in transitioning to dispatching all KUnit
    tests from a centralized executor rather than having each as its own
    separate late_initcall.

    - add a centralized executor to dispatch tests rather than relying on
    late_initcall to schedule each test suite separately. Centralized
    execution is for built-in tests only; modules will execute tests when
    loaded.

    - convert bitfield test to use KUnit framework

    - Documentation updates for naming guidelines and how
    kunit_test_suite() works.

    - add test plan to KUnit TAP format

    * tag 'linux-kselftest-kunit-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
    lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE
    lib: kunit: add bitfield test conversion to KUnit
    Documentation: kunit: add a brief blurb about kunit_test_suite
    kunit: test: add test plan to KUnit TAP format
    init: main: add KUnit to kernel init
    kunit: test: create a single centralized executor for all tests
    vmlinux.lds.h: add linker section for KUnit test suites
    Documentation: kunit: Add naming guidelines

    Linus Torvalds
     

16 Oct, 2020

2 commits

  • Pull networking updates from Jakub Kicinski:

    - Add redirect_neigh() BPF packet redirect helper, allowing to limit
    stack traversal in common container configs and improving TCP
    back-pressure.

    Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.

    - Expand netlink policy support and improve policy export to user
    space. (Ge)netlink core performs request validation according to
    declared policies. Expand the expressiveness of those policies
    (min/max length and bitmasks). Allow dumping policies for particular
    commands. This is used for feature discovery by user space (instead
    of kernel version parsing or trial and error).

    - Support IGMPv3/MLDv2 multicast listener discovery protocols in
    bridge.

    - Allow more than 255 IPv4 multicast interfaces.

    - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
    packets of TCPv6.

    - In Multi-patch TCP (MPTCP) support concurrent transmission of data on
    multiple subflows in a load balancing scenario. Enhance advertising
    addresses via the RM_ADDR/ADD_ADDR options.

    - Support SMC-Dv2 version of SMC, which enables multi-subnet
    deployments.

    - Allow more calls to same peer in RxRPC.

    - Support two new Controller Area Network (CAN) protocols - CAN-FD and
    ISO 15765-2:2016.

    - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
    kernel problem.

    - Add TC actions for implementing MPLS L2 VPNs.

    - Improve nexthop code - e.g. handle various corner cases when nexthop
    objects are removed from groups better, skip unnecessary
    notifications and make it easier to offload nexthops into HW by
    converting to a blocking notifier.

    - Support adding and consuming TCP header options by BPF programs,
    opening the doors for easy experimental and deployment-specific TCP
    option use.

    - Reorganize TCP congestion control (CC) initialization to simplify
    life of TCP CC implemented in BPF.

    - Add support for shipping BPF programs with the kernel and loading
    them early on boot via the User Mode Driver mechanism, hence reusing
    all the user space infra we have.

    - Support sleepable BPF programs, initially targeting LSM and tracing.

    - Add bpf_d_path() helper for returning full path for given 'struct
    path'.

    - Make bpf_tail_call compatible with bpf-to-bpf calls.

    - Allow BPF programs to call map_update_elem on sockmaps.

    - Add BPF Type Format (BTF) support for type and enum discovery, as
    well as support for using BTF within the kernel itself (current use
    is for pretty printing structures).

    - Support listing and getting information about bpf_links via the bpf
    syscall.

    - Enhance kernel interfaces around NIC firmware update. Allow
    specifying overwrite mask to control if settings etc. are reset
    during update; report expected max time operation may take to users;
    support firmware activation without machine reboot incl. limits of
    how much impact reset may have (e.g. dropping link or not).

    - Extend ethtool configuration interface to report IEEE-standard
    counters, to limit the need for per-vendor logic in user space.

    - Adopt or extend devlink use for debug, monitoring, fw update in many
    drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx,
    dpaa2-eth).

    - In mlxsw expose critical and emergency SFP module temperature alarms.
    Refactor port buffer handling to make the defaults more suitable and
    support setting these values explicitly via the DCBNL interface.

    - Add XDP support for Intel's igb driver.

    - Support offloading TC flower classification and filtering rules to
    mscc_ocelot switches.

    - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
    fixed interval period pulse generator and one-step timestamping in
    dpaa-eth.

    - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
    offload.

    - Add Lynx PHY/PCS MDIO module, and convert various drivers which have
    this HW to use it. Convert mvpp2 to split PCS.

    - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
    7-port Mediatek MT7531 IP.

    - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
    and wcn3680 support in wcn36xx.

    - Improve performance for packets which don't require much offloads on
    recent Mellanox NICs by 20% by making multiple packets share a
    descriptor entry.

    - Move chelsio inline crypto drivers (for TLS and IPsec) from the
    crypto subtree to drivers/net. Move MDIO drivers out of the phy
    directory.

    - Clean up a lot of W=1 warnings, reportedly the actively developed
    subsections of networking drivers should now build W=1 warning free.

    - Make sure drivers don't use in_interrupt() to dynamically adapt their
    code. Convert tasklets to use new tasklet_setup API (sadly this
    conversion is not yet complete).

    * tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits)
    Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
    net, sockmap: Don't call bpf_prog_put() on NULL pointer
    bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo
    bpf, sockmap: Add locking annotations to iterator
    netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements
    net: fix pos incrementment in ipv6_route_seq_next
    net/smc: fix invalid return code in smcd_new_buf_create()
    net/smc: fix valid DMBE buffer sizes
    net/smc: fix use-after-free of delayed events
    bpfilter: Fix build error with CONFIG_BPFILTER_UMH
    cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr
    net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
    bpf: Fix register equivalence tracking.
    rxrpc: Fix loss of final ack on shutdown
    rxrpc: Fix bundle counting for exclusive connections
    netfilter: restore NF_INET_NUMHOOKS
    ibmveth: Identify ingress large send packets.
    ibmveth: Switch order of ibmveth_helper calls.
    cxgb4: handle 4-tuple PEDIT to NAT mode translation
    selftests: Add VRF route leaking tests
    ...

    Linus Torvalds
     
  • Pull trivial updates from Jiri Kosina:
    "The latest advances in computer science from the trivial queue"

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
    xtensa: fix Kconfig typo
    spelling.txt: Remove some duplicate entries
    mtd: rawnand: oxnas: cleanup/simplify code
    selftests: vm: add fragment CONFIG_GUP_BENCHMARK
    perf: Fix opt help text for --no-bpf-event
    HID: logitech-dj: Fix spelling in comment
    bootconfig: Fix kernel message mentioning CONFIG_BOOT_CONFIG
    MAINTAINERS: rectify MMP SUPPORT after moving cputype.h
    scif: Fix spelling of EACCES
    printk: fix global comment
    lib/bitmap.c: fix spello
    fs: Fix missing 'bit' in comment

    Linus Torvalds
     

14 Oct, 2020

2 commits

  • Pull printk updates from Petr Mladek:
    "The big new thing is the fully lockless ringbuffer implementation,
    including the support for continuous lines. It will allow to store and
    read messages in any situation wihtout the risk of deadlocks and
    without the need of temporary per-CPU buffers.

    The access is still serialized by logbuf_lock. It synchronizes few
    more operations, for example, temporary buffer for formatting the
    message, syslog and kmsg_dump operations. The lock removal is being
    discussed and should be ready for the next release.

    The continuous lines are handled exactly the same way as before to
    avoid regressions in user space. It means that they are appended to
    the last message when the caller is the same. Only the last message
    can be extended.

    The data ring includes plain text of the messages. Except for an
    integer at the beginning of each message that points back to the
    descriptor ring with other metadata.

    The dictionary has to stay. journalctl uses it to filter the log. It
    allows to show messages related to a given device. The dictionary
    values are stored in the descriptor ring with the other metadata.

    This is the first part of the printk rework as discussed at Plumbers
    2019, see https://lore.kernel.org/r/87k1acz5rx.fsf@linutronix.de. The
    next big step will be handling consoles by kthreads during the normal
    system operation. It will require special handling of situations when
    the kthreads could not get scheduled, for example, early boot,
    suspend, panic.

    Other changes:

    - Add John Ogness as a reviewer for printk subsystem. He is author of
    the rework and is familiar with the code and history.

    - Fix locking in serial8250_do_startup() to prevent lockdep report.

    - Few code cleanups"

    * tag 'printk-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (27 commits)
    printk: Use fallthrough pseudo-keyword
    printk: reduce setup_text_buf size to LOG_LINE_MAX
    printk: avoid and/or handle record truncation
    printk: remove dict ring
    printk: move dictionary keys to dev_printk_info
    printk: move printk_info into separate array
    printk: reimplement log_cont using record extension
    printk: ringbuffer: add finalization/extension support
    printk: ringbuffer: change representation of states
    printk: ringbuffer: clear initial reserved fields
    printk: ringbuffer: add BLK_DATALESS() macro
    printk: ringbuffer: relocate get_data()
    printk: ringbuffer: avoid memcpy() on state_var
    printk: ringbuffer: fix setting state in desc_read()
    kernel.h: Move oops_in_progress to printk.h
    scripts/gdb: update for lockless printk ringbuffer
    scripts/gdb: add utils.read_ulong()
    docs: vmcoreinfo: add lockless printk ringbuffer vmcoreinfo
    printk: reduce LOG_BUF_SHIFT range for H8300
    printk: ringbuffer: support dataless records
    ...

    Linus Torvalds
     
  • Pull io_uring updates from Jens Axboe:

    - Add blkcg accounting for io-wq offload (Dennis)

    - A use-after-free fix for io-wq (Hillf)

    - Cancelation fixes and improvements

    - Use proper files_struct references for offload

    - Cleanup of io_uring_get_socket() since that can now go into our own
    header

    - SQPOLL fixes and cleanups, and support for sharing the thread

    - Improvement to how page accounting is done for registered buffers and
    huge pages, accounting the real pinned state

    - Series cleaning up the xarray code (Willy)

    - Various cleanups, refactoring, and improvements (Pavel)

    - Use raw spinlock for io-wq (Sebastian)

    - Add support for ring restrictions (Stefano)

    * tag 'io_uring-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (62 commits)
    io_uring: keep a pointer ref_node in file_data
    io_uring: refactor *files_register()'s error paths
    io_uring: clean file_data access in files_register
    io_uring: don't delay io_init_req() error check
    io_uring: clean leftovers after splitting issue
    io_uring: remove timeout.list after hrtimer cancel
    io_uring: use a separate struct for timeout_remove
    io_uring: improve submit_state.ios_left accounting
    io_uring: simplify io_file_get()
    io_uring: kill extra check in fixed io_file_get()
    io_uring: clean up ->files grabbing
    io_uring: don't io_prep_async_work() linked reqs
    io_uring: Convert advanced XArray uses to the normal API
    io_uring: Fix XArray usage in io_uring_add_task_file
    io_uring: Fix use of XArray in __io_uring_files_cancel
    io_uring: fix break condition for __io_uring_register() waiting
    io_uring: no need to call xa_destroy() on empty xarray
    io_uring: batch account ->req_issue and task struct references
    io_uring: kill callback_head argument for io_req_task_work_add()
    io_uring: move req preps out of io_issue_sqe()
    ...

    Linus Torvalds
     

13 Oct, 2020

1 commit

  • Pull documentation updates from Jonathan Corbet:
    "As hoped, things calmed down for docs this cycle; fewer changes and
    almost no conflicts at all. This includes:

    - A reworked and expanded user-mode Linux document

    - Some simplifications and improvements for submitting-patches.rst

    - An emergency fix for (some) problems with Sphinx 3.x

    - Some welcome automarkup improvements to automatically generate
    cross-references to struct definitions and other documents

    - The usual collection of translation updates, typo fixes, etc"

    * tag 'docs-5.10' of git://git.lwn.net/linux: (81 commits)
    gpiolib: Update indentation in driver.rst for code excerpts
    Documentation/admin-guide: tainted-kernels: Fix typo occured
    Documentation: better locations for sysfs-pci, sysfs-tagging
    docs: programming-languages: refresh blurb on clang support
    Documentation: kvm: fix a typo
    Documentation: Chinese translation of Documentation/arm64/amu.rst
    doc: zh_CN: index files in arm64 subdirectory
    mailmap: add entry for
    doc: seq_file: clarify role of *pos in ->next()
    docs: trace: ring-buffer-design.rst: use the new SPDX tag
    Documentation: kernel-parameters: clarify "module." parameters
    Fix references to nommu-mmap.rst
    docs: rewrite admin-guide/sysctl/abi.rst
    docs: fb: Remove vesafb scrollback boot option
    docs: fb: Remove sstfb scrollback boot option
    docs: fb: Remove matroxfb scrollback boot option
    docs: fb: Remove framebuffer scrollback boot option
    docs: replace the old User Mode Linux HowTo with a new one
    Documentation/admin-guide: blockdev/ramdisk: remove use of "rdev"
    Documentation/admin-guide: README & svga: remove use of "rdev"
    ...

    Linus Torvalds
     

12 Oct, 2020

1 commit