1. 14 Sep, 2021 4 commits
  2. 13 Sep, 2021 12 commits
  3. 07 Sep, 2021 24 commits
    • Linus Torvalds's avatar
      Merge tag 'net-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 626bf91a
      Linus Torvalds authored
      Pull networking fixes and stragglers from Jakub Kicinski:
       "Networking stragglers and fixes, including changes from netfilter,
        wireless and can.
      
        Current release - regressions:
      
         - qrtr: revert check in qrtr_endpoint_post(), fixes audio and wifi
      
         - ip_gre: validate csum_start only on pull
      
         - bnxt_en: fix 64-bit doorbell operation on 32-bit kernels
      
         - ionic: fix double use of queue-lock, fix a sleeping in atomic
      
         - can: c_can: fix null-ptr-deref on ioctl()
      
         - cs89x0: disable compile testing on powerpc
      
        Current release - new code bugs:
      
         - bridge: mcast: fix vlan port router deadlock, consistently disable
           BH
      
        Previous releases - regressions:
      
         - dsa: tag_rtl4_a: fix egress tags, only port 0 was working
      
         - mptcp: fix possible divide by zero
      
         - netfilter: nft_ct: protect nft_ct_pcpu_template_refcnt with mutex
      
         - netfilter: socket: icmp6: fix use-after-scope
      
         - stmmac: fix MAC not working when system resume back with WoL active
      
        Previous releases - always broken:
      
         - ip/ip6_gre: use the same logic as SIT interfaces when computing
           v6LL address
      
         - seg6: set fc_nlinfo in nh_create_ipv4, nh_create_ipv6
      
         - mptcp: only send extra TCP acks in eligible socket states
      
         - dsa: lantiq_gswip: fix maximum frame length
      
         - stmmac: fix overall budget calculation for rxtx_napi
      
         - bnxt_en: fix firmware version reporting via devlink
      
         - renesas: sh_eth: add missing barrier to fix freeing wrong tx
           descriptor
      
        Stragglers:
      
         - netfilter: conntrack: switch to siphash
      
         - netfilter: refuse insertion if chain has grown too large
      
         - ncsi: add get MAC address command to get Intel i210 MAC address"
      
      * tag 'net-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (76 commits)
        ieee802154: Remove redundant initialization of variable ret
        net: stmmac: fix MAC not working when system resume back with WoL active
        net: phylink: add suspend/resume support
        net: renesas: sh_eth: Fix freeing wrong tx descriptor
        bonding: 3ad: pass parameter bond_params by reference
        cxgb3: fix oops on module removal
        can: c_can: fix null-ptr-deref on ioctl()
        can: rcar_canfd: add __maybe_unused annotation to silence warning
        net: wwan: iosm: Unify IO accessors used in the driver
        net: wwan: iosm: Replace io.*64_lo_hi() with regular accessors
        net: qcom/emac: Replace strlcpy with strscpy
        ip6_gre: Revert "ip6_gre: add validation for csum_start"
        net: hns3: make hclgevf_cmd_caps_bit_map0 and hclge_cmd_caps_bit_map0 static
        selftests/bpf: Test XDP bonding nest and unwind
        bonding: Fix negative jump label count on nested bonding
        MAINTAINERS: add VM SOCKETS (AF_VSOCK) entry
        stmmac: dwmac-loongson:Fix missing return value
        iwlwifi: fix printk format warnings in uefi.c
        net: create netdev->dev_addr assignment helpers
        bnxt_en: Fix possible unintended driver initiated error recovery
        ...
      626bf91a
    • Linus Torvalds's avatar
      Merge tag 'linux-watchdog-5.15-rc1' of git://www.linux-watchdog.org/linux-watchdog · 4c00e1e2
      Linus Torvalds authored
      Pull watchdog updates from Wim Van Sebroeck:
      
       - add Mediatek MT7986 & MT8195 wdt support
      
       - add Maxim MAX63xx
      
       - drop bd70528 support
      
       - rewrite ixp4xx to watchdog framework
      
       - constify static struct watchdog_ops for sl28cpld_wdt, mpc8xxx_wdt and
         tqmx86
      
       - introduce watchdog_dev_suspend/resume
      
       - several fixes and improvements
      
      * tag 'linux-watchdog-5.15-rc1' of git://www.linux-watchdog.org/linux-watchdog:
        dt-bindings: watchdog: Add compatible for Mediatek MT7986
        watchdog: ixp4xx: Rewrite driver to use core
        watchdog: Start watchdog in watchdog_set_last_hw_keepalive only if appropriate
        watchdog: max63xx_wdt: Add device tree probing
        dt-bindings: watchdog: Add Maxim MAX63xx bindings
        watchdog: mediatek: mt8195: add wdt support
        dt-bindings: reset: mt8195: add toprgu reset-controller header file
        watchdog: tqmx86: Constify static struct watchdog_ops
        watchdog: mpc8xxx_wdt: Constify static struct watchdog_ops
        watchdog: sl28cpld_wdt: Constify static struct watchdog_ops
        watchdog: iTCO_wdt: Fix detection of SMI-off case
        watchdog: bcm2835_wdt: consider system-power-controller property
        watchdog: imx2_wdg: notify wdog core to stop ping worker on suspend
        watchdog: introduce watchdog_dev_suspend/resume
        watchdog: Fix NULL pointer dereference when releasing cdev
        watchdog: only run driver set_pretimeout op if device supports it
        watchdog: bd70528 drop bd70528 support
      4c00e1e2
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 192ad3c2
      Linus Torvalds authored
      Pull KVM updates from Paolo Bonzini:
       "ARM:
         - Page ownership tracking between host EL1 and EL2
         - Rely on userspace page tables to create large stage-2 mappings
         - Fix incompatibility between pKVM and kmemleak
         - Fix the PMU reset state, and improve the performance of the virtual
           PMU
         - Move over to the generic KVM entry code
         - Address PSCI reset issues w.r.t. save/restore
         - Preliminary rework for the upcoming pKVM fixed feature
         - A bunch of MM cleanups
         - a vGIC fix for timer spurious interrupts
         - Various cleanups
      
        s390:
         - enable interpretation of specification exceptions
         - fix a vcpu_idx vs vcpu_id mixup
      
        x86:
         - fast (lockless) page fault support for the new MMU
         - new MMU now the default
         - increased maximum allowed VCPU count
         - allow inhibit IRQs on KVM_RUN while debugging guests
         - let Hyper-V-enabled guests run with virtualized LAPIC as long as
           they do not enable the Hyper-V "AutoEOI" feature
         - fixes and optimizations for the toggling of AMD AVIC (virtualized
           LAPIC)
         - tuning for the case when two-dimensional paging (EPT/NPT) is
           disabled
         - bugfixes and cleanups, especially with respect to vCPU reset and
           choosing a paging mode based on CR0/CR4/EFER
         - support for 5-level page table on AMD processors
      
        Generic:
         - MMU notifier invalidation callbacks do not take mmu_lock unless
           necessary
         - improved caching of LRU kvm_memory_slot
         - support for histogram statistics
         - add statistics for halt polling and remote TLB flush requests"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (210 commits)
        KVM: Drop unused kvm_dirty_gfn_invalid()
        KVM: x86: Update vCPU's hv_clock before back to guest when tsc_offset is adjusted
        KVM: MMU: mark role_regs and role accessors as maybe unused
        KVM: MIPS: Remove a "set but not used" variable
        x86/kvm: Don't enable IRQ when IRQ enabled in kvm_wait
        KVM: stats: Add VM stat for remote tlb flush requests
        KVM: Remove unnecessary export of kvm_{inc,dec}_notifier_count()
        KVM: x86/mmu: Move lpage_disallowed_link further "down" in kvm_mmu_page
        KVM: x86/mmu: Relocate kvm_mmu_page.tdp_mmu_page for better cache locality
        Revert "KVM: x86: mmu: Add guest physical address check in translate_gpa()"
        KVM: x86/mmu: Remove unused field mmio_cached in struct kvm_mmu_page
        kvm: x86: Increase KVM_SOFT_MAX_VCPUS to 710
        kvm: x86: Increase MAX_VCPUS to 1024
        kvm: x86: Set KVM_MAX_VCPU_ID to 4*KVM_MAX_VCPUS
        KVM: VMX: avoid running vmx_handle_exit_irqoff in case of emulation
        KVM: x86/mmu: Don't freak out if pml5_root is NULL on 4-level host
        KVM: s390: index kvm->arch.idle_mask by vcpu_idx
        KVM: s390: Enable specification exception interpretation
        KVM: arm64: Trim guest debug exception handling
        KVM: SVM: Add 5-level page table support for SVM
        ...
      192ad3c2
    • Linus Torvalds's avatar
      Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging · a2b28235
      Linus Torvalds authored
      Pull dmi fix from Jean Delvare.
      
      Unbreak some existing udev/hwdb modalias matches due to misplaced
      product_sku field.
      
      * 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
        firmware: dmi: Move product_sku info to the end of the modalias
      a2b28235
    • Linus Torvalds's avatar
      Merge tag 'ntb-5.15' of git://github.com/jonmason/ntb · 1735715e
      Linus Torvalds authored
      Pull NTB updates from Jon Mason:
       "Bug fixes and clean-ups for Linux v5.15"
      
      * tag 'ntb-5.15' of git://github.com/jonmason/ntb:
        NTB: switch from 'pci_' to 'dma_' API
        ntb: ntb_pingpong: remove redundant initialization of variables msg_data and spad_data
        NTB: perf: Fix an error code in perf_setup_inbuf()
        NTB: Fix an error code in ntb_msit_probe()
        ntb: intel: remove invalid email address in header comment
      1735715e
    • Linus Torvalds's avatar
      Merge tag 'rproc-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc · 21f577b0
      Linus Torvalds authored
      Pull remoteproc updates from Bjorn Andersson:
      
       - move the crash recovery worker to the freezable work queue to avoid
         interaction with other drivers during suspend & resume
      
       - fix a couple of typos in comments
      
       - add support for handling the audio DSP on SDM660
      
       - fix a race between the Qualcomm wireless subsystem driver and the
         associated driver for the RF chip
      
      * tag 'rproc-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
        remoteproc: q6v5_pas: Add sdm660 ADSP PIL compatible
        dt-bindings: remoteproc: qcom: adsp: Add SDM660 ADSP
        remoteproc: use freezable workqueue for crash notifications
        remoteproc: fix kernel doc for struct rproc_ops
        remoteproc: fix an typo in fw_elf_get_class code comments
        remoteproc: qcom: wcnss: Fix race with iris probe
      21f577b0
    • Linus Torvalds's avatar
      Merge tag 'backlight-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight · 2d7b4cdb
      Linus Torvalds authored
      Pull backlight updates from Lee Jones:
       "Fix-ups:
         - Improve bootloader/kernel device handover
      
        Bug Fixes:
         - Stabilise backlight in ktd253 driver"
      
      * tag 'backlight-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
        backlight: pwm_bl: Improve bootloader/kernel device handover
        backlight: ktd253: Stabilize backlight
      2d7b4cdb
    • Linus Torvalds's avatar
      Merge tag 'mfd-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd · 86406a9e
      Linus Torvalds authored
      Pull MFD updates from Lee Jones:
       "Core Frameworks:
         - Add support for registering devices via MFD cells to Simple MFD (I2C)
      
        New Drivers:
         - Add support for Renesas Synchronization Management Unit (SMU)
      
        New Device Support:
         - Add support for N5010 to Intel M10 BMC
         - Add support for Cannon Lake to Intel LPSS ACPI
         - Add support for Samsung SSG{1,2} to ST-Ericsson's U8500 family
         - Add support for TQMx110EB and TQMxE40x to TQ-Systems PLD TQMx86
      
        New Functionality:
         - Add support for GPIO to Intel LPC ICH
         - Add support for Reset to Texas Instruments TPS65086
      
        Fix-ups:
         - Trivial, sorting, whitespace, renaming, etc; mt6360-core, db8500-prcmu-regs, tqmx86
         - Device Tree fiddling; syscon, axp20x, qcom,pm8008, ti,tps65086, brcm,cru
         - Use proper APIs for IRQ map resolution; ab8500-core, stmpe, tc3589x, wm8994-irq
         - Pass 'supplied-from' property through axp288_fuel_gauge via swnode
         - Remove unused file entry; MAINTAINERS
         - Make interrupt line optional; tps65086
         - Rename db8500-cpuidle driver symbol; db8500-prcmu
         - Remove support for unused hardware; tqmx86
         - Provide a standard LPC clock frequency for unknown boards; tqmx86
         - Remove unused code; ti_am335x_tscadc
         - Use of_iomap() instead of ioremap(); syscon
      
        Bug Fixes:
         - Clear GPIO IRQ resource flags when no IRQ is set; tqmx86
         - Fix incorrect/misleading frequencies; db8500-prcmu
         - Mitigate namespace clash with other GPIOBASE users"
      
      * tag 'mfd-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (31 commits)
        mfd: lpc_sch: Rename GPIOBASE to prevent build error
        mfd: syscon: Use of_iomap() instead of ioremap()
        dt-bindings: mfd: Add Broadcom CRU
        mfd: ti_am335x_tscadc: Delete superfluous error message
        mfd: tqmx86: Assume 24MHz LPC clock for unknown boards
        mfd: tqmx86: Add support for TQ-Systems DMI IDs
        mfd: tqmx86: Add support for TQMx110EB and TQMxE40x
        mfd: tqmx86: Fix typo in "platform"
        mfd: tqmx86: Remove incorrect TQMx90UC board ID
        mfd: tqmx86: Clear GPIO IRQ resource when no IRQ is set
        mfd: simple-mfd-i2c: Add support for registering devices via MFD cells
        mfd/cpuidle: ux500: Rename driver symbol
        mfd: tps65086: Add cell entry for reset driver
        mfd: tps65086: Make interrupt line optional
        dt-bindings: mfd: Convert tps65086.txt to YAML
        MAINTAINERS: Adjust ARM/NOMADIK/Ux500 ARCHITECTURES to file renaming
        mfd: db8500-prcmu: Handle missing FW variant
        mfd: db8500-prcmu: Rename register header
        mfd: axp20x: Add supplied-from property to axp288_fuel_gauge cell
        mfd: Don't use irq_create_mapping() to resolve a mapping
        ...
      86406a9e
    • Linus Torvalds's avatar
      Merge tag 'gpio-updates-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux · 5e6a5845
      Linus Torvalds authored
      Pull gpio updates from Bartosz Golaszewski:
       "We mostly have various improvements and refactoring all over the place
        but also some interesting new features - like the virtio GPIO driver
        that allows guest VMs to use host's GPIOs. We also have a new/old GPIO
        driver for rockchip - this one has been split out of the pinctrl
        driver.
      
        Summary:
      
         - new driver: gpio-virtio allowing a guest VM running linux to access
           GPIO lines provided by the host
      
         - split the GPIO driver out of the rockchip pin control driver
      
         - add support for a new model to gpio-aspeed-sgpio, refactor the
           driver and use generic device property interfaces, improve property
           sanitization
      
         - add ACPI support to gpio-tegra186
      
         - improve the code setting the line names to support multiple GPIO
           banks per device
      
         - constify a bunch of OF functions in the core GPIO code and make the
           declaration for one of the core OF functions we use consistent
           within its header
      
         - use software nodes in intel_quark_i2c_gpio
      
         - add support for the gpio-line-names property in gpio-mt7621
      
         - use the standard GPIO function for setting the GPIO names in
           gpio-brcmstb
      
         - fix a bunch of leaks and other bugs in gpio-mpc8xxx
      
         - use generic pm callbacks in gpio-ml-ioh
      
         - improve resource management and PM handling in gpio-mlxbf2
      
         - modernize and improve the gpio-dwapb driver
      
         - coding style improvements in gpio-rcar
      
         - documentation fixes and improvements
      
         - update the MAINTAINERS entry for gpio-zynq
      
         - minor tweaks in several drivers"
      
      * tag 'gpio-updates-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (35 commits)
        gpio: mpc8xxx: Use 'devm_gpiochip_add_data()' to simplify the code and avoid a leak
        gpio: mpc8xxx: Fix a potential double iounmap call in 'mpc8xxx_probe()'
        gpio: mpc8xxx: Fix a resources leak in the error handling path of 'mpc8xxx_probe()'
        gpio: viperboard: remove platform_set_drvdata() call in probe
        gpio: virtio: Add missing mailings lists in MAINTAINERS entry
        gpio: virtio: Fix sparse warnings
        gpio: remove the obsolete MX35 3DS BOARD MC9S08DZ60 GPIO functions
        gpio: max730x: Use the right include
        gpio: Add virtio-gpio driver
        gpio: mlxbf2: Use DEFINE_RES_MEM_NAMED() helper macro
        gpio: mlxbf2: Use devm_platform_ioremap_resource()
        gpio: mlxbf2: Drop wrong use of ACPI_PTR()
        gpio: mlxbf2: Convert to device PM ops
        gpio: dwapb: Get rid of legacy platform data
        mfd: intel_quark_i2c_gpio: Convert GPIO to use software nodes
        gpio: dwapb: Read GPIO base from gpio-base property
        gpio: dwapb: Unify ACPI enumeration checks in get_irq() and configure_irqs()
        gpiolib: Deduplicate forward declaration in the consumer.h header
        MAINTAINERS: update gpio-zynq.yaml reference
        gpio: tegra186: Add ACPI support
        ...
      5e6a5845
    • Linus Torvalds's avatar
      Merge tag 'fuse-update-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse · 75b96f0e
      Linus Torvalds authored
      Pull fuse updates from Miklos Szeredi:
      
       - Allow mounting an active fuse device. Previously the fuse device
         would always be mounted during initialization, and sharing a fuse
         superblock was only possible through mount or namespace cloning
      
       - Fix data flushing in syncfs (virtiofs only)
      
       - Fix data flushing in copy_file_range()
      
       - Fix a possible deadlock in atomic O_TRUNC
      
       - Misc fixes and cleanups
      
      * tag 'fuse-update-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
        fuse: remove unused arg in fuse_write_file_get()
        fuse: wait for writepages in syncfs
        fuse: flush extending writes
        fuse: truncate pagecache on atomic_o_trunc
        fuse: allow sharing existing sb
        fuse: move fget() to fuse_get_tree()
        fuse: move option checking into fuse_fill_super()
        fuse: name fs_context consistently
        fuse: fix use after free in fuse_read_interrupt()
      75b96f0e
    • Linus Torvalds's avatar
      Merge tag 'kgdb-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux · 996fe061
      Linus Torvalds authored
      Pull kgdb updates from Daniel Thompson:
       "Changes for kgdb/kdb this cycle are dominated by a change from Sumit
        that removes as small (256K) private heap from kdb. This is change
        I've hoped for ever since I discovered how few users of this heap
        remained in the kernel, so many thanks to Sumit for hunting these
        down.
      
        The other change is an incremental step towards SPDX headers"
      
      * tag 'kgdb-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
        kernel: debug: Convert to SPDX identifier
        kdb: Rename members of struct kdbtab_t
        kdb: Simplify kdb_defcmd macro logic
        kdb: Get rid of redundant kdb_register_flags()
        kdb: Rename struct defcmd_set to struct kdb_macro
        kdb: Get rid of custom debug heap allocator
      996fe061
    • Linus Torvalds's avatar
      Revert "memcg: enable accounting for pollfd and select bits arrays" · 0bcfe68b
      Linus Torvalds authored
      This reverts commit b6558434.
      
      Just like with the memcg lock accounting, the kernel test robot reports
      a sizeable performance regression for this commit, and while it clearly
      does the rigth thing in theory, we'll need to look at just how to avoid
      or minimize the performance overhead of the memcg accounting.
      
      People already have suggestions on how to do that, but it's "future
      work".
      
      So revert it for now.
      
      [ Note: the first link below is for this same commit but a different
        commit ID, because it's the kernel test robot ended up noticing it in
        Andrew Morton's patch queue ]
      
      Link: https://lore.kernel.org/lkml/20210905132732.GC15026@xsang-OptiPlex-9020/
      Link: https://lore.kernel.org/lkml/20210907150757.GE17617@xsang-OptiPlex-9020/Acked-by: default avatarJens Axboe <axboe@kernel.dk>
      Acked-by: default avatarShakeel Butt <shakeelb@google.com>
      Acked-by: default avatarRoman Gushchin <guro@fb.com>
      Cc: Tejun Heo <tj@kernel.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      0bcfe68b
    • Linus Torvalds's avatar
      Revert "memcg: enable accounting for file lock caches" · 3754707b
      Linus Torvalds authored
      This reverts commit 0f12156d.
      
      The kernel test robot reports a sizeable performance regression for this
      commit, and while it clearly does the rigth thing in theory, we'll need
      to look at just how to avoid or minimize the performance overhead of the
      memcg accounting.
      
      People already have suggestions on how to do that, but it's "future
      work".
      
      So revert it for now.
      
      Link: https://lore.kernel.org/lkml/20210907150757.GE17617@xsang-OptiPlex-9020/Acked-by: default avatarJens Axboe <axboe@kernel.dk>
      Acked-by: default avatarShakeel Butt <shakeelb@google.com>
      Acked-by: default avatarRoman Gushchin <guro@fb.com>
      Cc: Tejun Heo <tj@kernel.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      3754707b
    • Linus Torvalds's avatar
      Revert "mm/gup: remove try_get_page(), call try_get_compound_head() directly" · cd1adf1b
      Linus Torvalds authored
      This reverts commit 9857a17f.
      
      That commit was completely broken, and I should have caught on to it
      earlier.  But happily, the kernel test robot noticed the breakage fairly
      quickly.
      
      The breakage is because "try_get_page()" is about avoiding the page
      reference count overflow case, but is otherwise the exact same as a
      plain "get_page()".
      
      In contrast, "try_get_compound_head()" is an entirely different beast,
      and uses __page_cache_add_speculative() because it's not just about the
      page reference count, but also about possibly racing with the underlying
      page going away.
      
      So all the commentary about how
      
       "try_get_page() has fallen a little behind in terms of maintenance,
        try_get_compound_head() handles speculative page references more
        thoroughly"
      
      was just completely wrong: yes, try_get_compound_head() handles
      speculative page references, but the point is that try_get_page() does
      not, and must not.
      
      So there's no lack of maintainance - there are fundamentally different
      semantics.
      
      A speculative page reference would be entirely wrong in "get_page()",
      and it's entirely wrong in "try_get_page()".  It's not about
      speculation, it's purely about "uhhuh, you can't get this page because
      you've tried to increment the reference count too much already".
      
      The reason the kernel test robot noticed this bug was that it hit the
      VM_BUG_ON() in __page_cache_add_speculative(), which is all about
      verifying that the context of any speculative page access is correct.
      But since that isn't what try_get_page() is all about, the VM_BUG_ON()
      tests things that are not correct to test for try_get_page().
      Reported-by: default avatarkernel test robot <oliver.sang@intel.com>
      Cc: John Hubbard <jhubbard@nvidia.com>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cd1adf1b
    • Colin Ian King's avatar
      ieee802154: Remove redundant initialization of variable ret · 0f77f2de
      Colin Ian King authored
      The variable ret is being initialized with a value that is never read, it
      is being updated later on. The assignment is redundant and can be removed.
      
      Addresses-Coverity: ("Unused value")
      Signed-off-by: default avatarColin Ian King <colin.king@canonical.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0f77f2de
    • David S. Miller's avatar
      Merge branch 'stmmac-wol-fix' · d1bf7338
      David S. Miller authored
      Joakim Zhang says:
      
      ====================
      net: stmmac: fix WoL issue
      
      This patch set fixes stmmac not working after system resume back with WoL
      active. Thanks a lot for Russell King keeps looking into this issue.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d1bf7338
    • Joakim Zhang's avatar
      net: stmmac: fix MAC not working when system resume back with WoL active · 90702dcd
      Joakim Zhang authored
      We can reproduce this issue with below steps:
      1) enable WoL on the host
      2) host system suspended
      3) remote client send out wakeup packets
      We can see that host system resume back, but can't work, such as ping failed.
      
      After a bit digging, this issue is introduced by the commit 46f69ded
      ("net: stmmac: Use resolved link config in mac_link_up()"), which use
      the finalised link parameters in mac_link_up() rather than the
      parameters in mac_config().
      
      There are two scenarios for MAC suspend/resume in STMMAC driver:
      
      1) MAC suspend with WoL inactive, stmmac_suspend() call
      phylink_mac_change() to notify phylink machine that a change in MAC
      state, then .mac_link_down callback would be invoked. Further, it will
      call phylink_stop() to stop the phylink instance. When MAC resume back,
      firstly phylink_start() is called to start the phylink instance, then
      call phylink_mac_change() which will finally trigger phylink machine to
      invoke .mac_config and .mac_link_up callback. All is fine since
      configuration in these two callbacks will be initialized, that means MAC
      can restore the state.
      
      2) MAC suspend with WoL active, phylink_mac_change() will put link
      down, but there is no phylink_stop() to stop the phylink instance, so it
      will link up again, that means .mac_config and .mac_link_up would be
      invoked before system suspended. After system resume back, it will do
      DMA initialization and SW reset which let MAC lost the hardware setting
      (i.e MAC_Configuration register(offset 0x0) is reset). Since link is up
      before system suspended, so .mac_link_up would not be invoked after
      system resume back, lead to there is no chance to initialize the
      configuration in .mac_link_up callback, as a result, MAC can't work any
      longer.
      
      After discussed with Russell King [1], we confirm that phylink framework
      have not take WoL into consideration yet. This patch calls
      phylink_suspend()/phylink_resume() functions which is newly introduced
      by Russell King to fix this issue.
      
      [1] https://lore.kernel.org/netdev/20210901090228.11308-1-qiangqing.zhang@nxp.com/
      
      Fixes: 46f69ded ("net: stmmac: Use resolved link config in mac_link_up()")
      Signed-off-by: default avatarJoakim Zhang <qiangqing.zhang@nxp.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      90702dcd
    • Russell King (Oracle)'s avatar
      net: phylink: add suspend/resume support · f9749365
      Russell King (Oracle) authored
      Joakim Zhang reports that Wake-on-Lan with the stmmac ethernet driver broke
      when moving the incorrect handling of mac link state out of mac_config().
      This reason this breaks is because the stmmac's WoL is handled by the MAC
      rather than the PHY, and phylink doesn't cater for that scenario.
      
      This patch adds the necessary phylink code to handle suspend/resume events
      according to whether the MAC still needs a valid link or not. This is the
      barest minimum for this support.
      Reported-by: default avatarJoakim Zhang <qiangqing.zhang@nxp.com>
      Tested-by: default avatarJoakim Zhang <qiangqing.zhang@nxp.com>
      Signed-off-by: default avatarRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
      Signed-off-by: default avatarJoakim Zhang <qiangqing.zhang@nxp.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f9749365
    • Yoshihiro Shimoda's avatar
      net: renesas: sh_eth: Fix freeing wrong tx descriptor · 0341d5e3
      Yoshihiro Shimoda authored
      The cur_tx counter must be incremented after TACT bit of
      txdesc->status was set. However, a CPU is possible to reorder
      instructions and/or memory accesses between cur_tx and
      txdesc->status. And then, if TX interrupt happened at such a
      timing, the sh_eth_tx_free() may free the descriptor wrongly.
      So, add wmb() before cur_tx++.
      Otherwise NETDEV WATCHDOG timeout is possible to happen.
      
      Fixes: 86a74ff2 ("net: sh_eth: add support for Renesas SuperH Ethernet")
      Signed-off-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0341d5e3
    • Colin Ian King's avatar
      bonding: 3ad: pass parameter bond_params by reference · bbef56d8
      Colin Ian King authored
      The parameter bond_params is a relatively large 192 byte sized
      struct so pass it by reference rather than by value to reduce
      copying.
      
      Addresses-Coverity: ("Big parameter passed by value")
      Signed-off-by: default avatarColin Ian King <colin.king@canonical.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      bbef56d8
    • David S. Miller's avatar
      Merge tag 'linux-can-fixes-for-5.15-20210907' of... · 1c990729
      David S. Miller authored
      Merge tag 'linux-can-fixes-for-5.15-20210907' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
      
      linux-can-fixes-for-5.15-20210907
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1c990729
    • David S. Miller's avatar
      Merge tag 'wireless-drivers-2021-09-07' of... · 8f110f35
      David S. Miller authored
      Merge tag 'wireless-drivers-2021-09-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
      
      Kalle Valo says:
      
      ====================
      wireless-drivers fixes for v5.15
      
      First set of fixes for v5.15 and only iwlwifi patches this time. Most
      important being support for new hardware and new firmware API.
      
      I had already earlier applied a fix which also Linus applied to this
      tree as commit 1476ff21 ("iwl: fix debug printf format strings"),
      but this doesn't seem to cause any conflicts so I left it there.
      
      iwlwifi
      
      * add support for firmware API 66
      
      * add support for Samsung Galaxy Book Flex2 Alpha
      
      * fix a leak happening every time module is loaded
      
      * fix a printk compiler warning
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8f110f35
    • Heiner Kallweit's avatar
      cxgb3: fix oops on module removal · be27a47a
      Heiner Kallweit authored
      When removing the driver module w/o bringing an interface up before
      the error below occurs. Reason seems to be that cancel_work_sync() is
      called in t3_sge_stop() for a queue that hasn't been initialized yet.
      
      [10085.941785] ------------[ cut here ]------------
      [10085.941799] WARNING: CPU: 1 PID: 5850 at kernel/workqueue.c:3074 __flush_work+0x3ff/0x480
      [10085.941819] Modules linked in: vfat snd_hda_codec_hdmi fat snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio led_class ee1004 iTCO_
      wdt intel_tcc_cooling x86_pkg_temp_thermal coretemp aesni_intel crypto_simd cryptd snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core r
      8169 snd_pcm realtek mdio_devres snd_timer snd i2c_i801 i2c_smbus libphy i915 i2c_algo_bit cxgb3(-) intel_gtt ttm mdio drm_kms_helper mei_me s
      yscopyarea sysfillrect sysimgblt mei fb_sys_fops acpi_pad sch_fq_codel crypto_user drm efivarfs ext4 mbcache jbd2 crc32c_intel
      [10085.941944] CPU: 1 PID: 5850 Comm: rmmod Not tainted 5.14.0-rc7-next-20210826+ #6
      [10085.941974] Hardware name: System manufacturer System Product Name/PRIME H310I-PLUS, BIOS 2603 10/21/2019
      [10085.941992] RIP: 0010:__flush_work+0x3ff/0x480
      [10085.942003] Code: c0 74 6b 65 ff 0d d1 bd 78 75 e8 bc 2f 06 00 48 c7 c6 68 b1 88 8a 48 c7 c7 e0 5f b4 8b 45 31 ff e8 e6 66 04 00 e9 4b fe ff ff <0f> 0b 45 31 ff e9 41 fe ff ff e8 72 c1 79 00 85 c0 74 87 80 3d 22
      [10085.942036] RSP: 0018:ffffa1744383fc08 EFLAGS: 00010246
      [10085.942048] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000923
      [10085.942062] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff91c901710a88
      [10085.942076] RBP: ffffa1744383fce8 R08: 0000000000000001 R09: 0000000000000001
      [10085.942090] R10: 00000000000000c2 R11: 0000000000000000 R12: ffff91c901710a88
      [10085.942104] R13: 0000000000000000 R14: ffff91c909a96100 R15: 0000000000000001
      [10085.942118] FS:  00007fe417837740(0000) GS:ffff91c969d00000(0000) knlGS:0000000000000000
      [10085.942134] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [10085.942146] CR2: 000055a8d567ecd8 CR3: 0000000121690003 CR4: 00000000003706e0
      [10085.942160] Call Trace:
      [10085.942166]  ? __lock_acquire+0x3af/0x22e0
      [10085.942177]  ? cancel_work_sync+0xb/0x10
      [10085.942187]  __cancel_work_timer+0x128/0x1b0
      [10085.942197]  ? __pm_runtime_resume+0x5b/0x90
      [10085.942208]  cancel_work_sync+0xb/0x10
      [10085.942217]  t3_sge_stop+0x2f/0x50 [cxgb3]
      [10085.942234]  remove_one+0x26/0x190 [cxgb3]
      [10085.942248]  pci_device_remove+0x39/0xa0
      [10085.942258]  __device_release_driver+0x15e/0x240
      [10085.942269]  driver_detach+0xd9/0x120
      [10085.942278]  bus_remove_driver+0x53/0xd0
      [10085.942288]  driver_unregister+0x2c/0x50
      [10085.942298]  pci_unregister_driver+0x31/0x90
      [10085.942307]  cxgb3_cleanup_module+0x10/0x18c [cxgb3]
      [10085.942324]  __do_sys_delete_module+0x191/0x250
      [10085.942336]  ? syscall_enter_from_user_mode+0x21/0x60
      [10085.942347]  ? trace_hardirqs_on+0x2a/0xe0
      [10085.942357]  __x64_sys_delete_module+0x13/0x20
      [10085.942368]  do_syscall_64+0x40/0x90
      [10085.942377]  entry_SYSCALL_64_after_hwframe+0x44/0xae
      [10085.942389] RIP: 0033:0x7fe41796323b
      
      Fixes: 5e0b8928 ("net:cxgb3: replace tasklets with works")
      Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      be27a47a
    • Randy Dunlap's avatar
      mfd: lpc_sch: Rename GPIOBASE to prevent build error · cdff1eda
      Randy Dunlap authored
      One MIPS platform (mach-rc32434) defines GPIOBASE. This macro
      conflicts with one of the same name in lpc_sch.c. Rename the latter one
      to prevent the build error.
      
      ../drivers/mfd/lpc_sch.c:25: error: "GPIOBASE" redefined [-Werror]
         25 | #define GPIOBASE        0x44
      ../arch/mips/include/asm/mach-rc32434/rb.h:32: note: this is the location of the previous definition
         32 | #define GPIOBASE        0x050000
      
      Cc: Denis Turischev <denis@compulab.co.il>
      Fixes: e82c60ae ("mfd: Introduce lpc_sch for Intel SCH LPC bridge")
      Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
      Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
      cdff1eda