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Commit c249464a authored by Raghavendra Rao Ananta's avatar Raghavendra Rao Ananta
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Merge remote-tracking branch 'remotes/origin/tmp-aefd2d63' into msm-lahaina



* remotes/origin/tmp-aefd2d63:
  ANDROID: binder: fix sleeping from invalid function caused by RT inheritance
  FROMGIT: scsi: ufs: override auto suspend tunables for ufs
  FROMGIT: scsi: core: allow auto suspend override by low-level driver
  Linux 5.4-rc6
  net: fix installing orphaned programs
  net: cls_bpf: fix NULL deref on offload filter removal
  selftests: bpf: Skip write only files in debugfs
  selftests: net: reuseport_dualstack: fix uninitalized parameter
  r8169: fix wrong PHY ID issue with RTL8168dp
  net: dsa: bcm_sf2: Fix IMP setup for port different than 8
  net: phylink: Fix phylink_dbg() macro
  gve: Fixes DMA synchronization.
  inet: stop leaking jiffies on the wire
  ixgbe: Remove duplicate clear_bit() call
  Documentation: networking: device drivers: Remove stray asterisks
  e1000: fix memory leaks
  i40e: Fix receive buffer starvation for AF_XDP
  igb: Fix constant media auto sense switching when no cable is connected
  net: ethernet: arc: add the missed clk_disable_unprepare
  ANDROID: gki_defconfig: enable CONFIG_KEYBOARD_GPIO
  NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
  NFSv4: Don't allow a cached open with a revoked delegation
  arm64: apply ARM64_ERRATUM_843419 workaround for Brahma-B53 core
  arm64: Brahma-B53 is SSB and spectre v2 safe
  arm64: apply ARM64_ERRATUM_845719 workaround for Brahma-B53 core
  igb: Enable media autosense for the i350.
  igb/igc: Don't warn on fatal read failures when the device is removed
  tcp: increase tcp_max_syn_backlog max value
  net: increase SOMAXCONN to 4096
  netdevsim: Fix use-after-free during device dismantle
  rxrpc: Fix handling of last subpacket of jumbo packet
  usb: dwc3: gadget: fix race when disabling ep with cancelled xfers
  ANDROID: Remove KVM_INTEL allmodconfig workaround
  ANDROID: Fix x86_64 allmodconfig build
  iocost: don't nest spin_lock_irq in ioc_weight_write()
  s390/idle: fix cpu idle time calculation
  s390/unwind: fix mixing regs and sp
  s390/cmm: fix information leak in cmm_timeout_handler()
  arm64: cpufeature: Enable Qualcomm Falkor errata 1009 for Kryo
  KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active
  kvm: call kvm_arch_destroy_vm if vm creation fails
  efi/efi_test: Lock down /dev/efi_test and require CAP_SYS_ADMIN
  x86, efi: Never relocate kernel below lowest acceptable address
  efi: libstub/arm: Account for firmware reserved memory at the base of RAM
  efi/random: Treat EFI_RNG_PROTOCOL output as bootloader randomness
  efi/tpm: Return -EINVAL when determining tpm final events log size fails
  efi: Make CONFIG_EFI_RCI2_TABLE selectable on x86 only
  hv_netvsc: Fix error handling in netvsc_attach()
  hv_netvsc: Fix error handling in netvsc_set_features()
  cxgb4: fix panic when attaching to ULD fail
  net: annotate lockless accesses to sk->sk_napi_id
  FROMLIST: scsi: ufs-qcom: enter and exit hibern8 during clock scaling
  FROMLIST: scsi: ufs: export hibern8 entry and exit
  ANDROID: scsi: ufs: UFS crypto variant operations API
  ANDROID: gki_defconfig: enable inline encryption
  FROMLIST: ext4: add inline encryption support
  FROMLIST: f2fs: add inline encryption support
  FROMLIST: fscrypt: add inline encryption support
  FROMLIST: scsi: ufs: Add inline encryption support to UFS
  FROMLIST: scsi: ufs: UFS crypto API
  FROMLIST: scsi: ufs: UFS driver v2.1 spec crypto additions
  FROMLIST: block: blk-crypto for Inline Encryption
  ANDROID: block: Fix bio_crypt_should_process WARN_ON
  ALSA: timer: Fix mutex deadlock at releasing card
  FROMLIST: block: Add encryption context to struct bio
  io_uring: ensure we clear io_kiocb->result before each issue
  parisc: fix frame pointer in ftrace_regs_caller()
  net: annotate accesses to sk->sk_incoming_cpu
  FROMLIST: block: Keyslot Manager for Inline Encryption
  FROMLIST: f2fs: add support for IV_INO_LBLK_64 encryption policies
  FROMLIST: ext4: add support for IV_INO_LBLK_64 encryption policies
  FROMLIST: fscrypt: add support for IV_INO_LBLK_64 policies
  FROMLIST: docs: ioctl-number: document fscrypt ioctl numbers
  FROMLIST: fscrypt: zeroize fscrypt_info before freeing
  FROMLIST: fscrypt: remove struct fscrypt_ctx
  FROMLIST: fscrypt: invoke crypto API for ESSIV handling
  mlxsw: core: Unpublish devlink parameters during reload
  qed: Optimize execution time for nvm attributes configuration.
  vxlan: fix unexpected failure of vxlan_changelink()
  qed: fix spelling mistake "queuess" -> "queues"
  SUNRPC: Destroy the back channel when we destroy the host transport
  SUNRPC: The RDMA back channel mustn't disappear while requests are outstanding
  SUNRPC: The TCP back channel mustn't disappear while requests are outstanding
  drm/amdgpu: enable -msse2 for GCC 7.1+ users
  drm/amdgpu: fix stack alignment ABI mismatch for GCC 7.1+
  drm/amdgpu: fix stack alignment ABI mismatch for Clang
  drm/radeon: Fix EEH during kexec
  drm/amdgpu/gmc10: properly set BANK_SELECT and FRAGMENT_SIZE
  drm/amdgpu/powerplay/vega10: allow undervolting in p7
  dc.c:use kzalloc without test
  drm/amd/display: setting the DIG_MODE to the correct value.
  drm/amd/display: Passive DP->HDMI dongle detection fix
  drm/amd/display: add 50us buffer as WA for pstate switch in active
  drm/amd/display: Allow inverted gamma
  drm/amd/display: do not synchronize "drr" displays
  drm/amdgpu: If amdgpu_ib_schedule fails return back the error.
  drm/sched: Set error to s_fence if HW job submission failed.
  drm/amdgpu/gfx10: update gfx golden settings for navi12
  drm/amdgpu/gfx10: update gfx golden settings for navi14
  drm/amdgpu/gfx10: update gfx golden settings
  drm/amd/display: Change Navi14's DWB flag to 1
  drm/amdgpu/sdma5: do not execute 0-sized IBs (v2)
  drm/amdgpu: Fix SDMA hang when performing VKexample test
  iwlwifi: fw api: support new API for scan config cmd
  mt76: dma: fix buffer unmap with non-linear skbs
  mt76: mt76x2e: disable pcie_aspm by default
  ALSA: hda - Fix mutex deadlock in HDMI codec driver
  usb: cdns3: gadget: Fix g_audio use case when connected to Super-Speed host
  usb: cdns3: gadget: reset EP_CLAIMED flag while unloading
  gfs2: Fix initialisation of args for remount
  iommu/vt-d: Fix panic after kexec -p for kdump
  iommu/amd: Apply the same IVRS IOAPIC workaround to Acer Aspire A315-41
  iommu/ipmmu-vmsa: Remove dev_err() on platform_get_irq() failure
  nl80211: fix validation of mesh path nexthop
  nl80211: Disallow setting of HT for channel 14
  USB: serial: whiteheat: fix line-speed endianness
  USB: serial: whiteheat: fix potential slab corruption
  MAINTAINERS: Change to my personal email address
  drm/i915: Fix PCH reference clock for FDI on HSW/BDW
  net: rtnetlink: fix a typo fbd -> fdb
  net/smc: fix refcounting for non-blocking connect()
  bonding: fix using uninitialized mode_lock
  net: fec_ptp: Use platform_get_irq_xxx_optional() to avoid error message
  net: fec_main: Use platform_get_irq_byname_optional() to avoid error message
  MAINTAINERS: remove Dave Watson as TLS maintainer
  vxlan: check tun_info options_len properly
  erspan: fix the tun_info options_len check for erspan
  net: hisilicon: Fix ping latency when deal with high throughput
  net/mlx4_core: Dynamically set guaranteed amount of counters per VF
  net/mlx5e: Initialize on stack link modes bitmap
  net/mlx5e: Fix ethtool self test: link speed
  net/mlx5e: Fix handling of compressed CQEs in case of low NAPI budget
  net/mlx5e: Don't store direct pointer to action's tunnel info
  net/mlx5: Fix NULL pointer dereference in extended destination
  net/mlx5: Fix rtable reference leak
  net/mlx5e: Only skip encap flows update when encap init failed
  net/mlx5e: Replace kfree with kvfree when free vhca stats
  net/mlx5e: Remove incorrect match criteria assignment line
  net/mlx5e: Determine source port properly for vlan push action
  net/mlx5: Fix flow counter list auto bits struct
  net: mscc: ocelot: refuse to overwrite the port's native vlan
  net: mscc: ocelot: fix vlan_filtering when enslaving to bridge before link is up
  wimax: i2400: Fix memory leak in i2400m_op_rfkill_sw_toggle
  drm/i915/tgl: Fix doc not corresponding to code
  ANDROID: staging: ion: Fix dynamic heap ID assignment
  ANDROID: Fix typo for FROMLIST: section
  drm/panfrost: Don't dereference bogus MMU pointers
  ANDROID: media: increase video max frame number
  drm/panfrost: fix -Wmissing-prototypes warnings
  net: hisilicon: Fix "Trying to free already-free IRQ"
  fjes: Handle workqueue allocation failure
  Revert "sched: Rework pick_next_task() slow-path"
  arm64: cpufeature: Enable Qualcomm Falkor/Kryo errata 1003
  drm/etnaviv: fix dumping of iommuv2
  drm/etnaviv: reinstate MMUv1 command buffer window check
  drm/etnaviv: fix deadlock in GPU coredump
  arm64: Ensure VM_WRITE|VM_SHARED ptes are clean by default
  um-ubd: Entrust re-queue to the upper layers
  nvme-multipath: remove unused groups_only mode in ana log
  nvme-multipath: fix possible io hang after ctrl reconnect
  powerpc/powernv: Fix CPU idle to be called with IRQs disabled
  sched/topology: Allow sched_asym_cpucapacity to be disabled
  sched/topology: Don't try to build empty sched domains
  USB: gadget: Reject endpoints with 0 maxpacket value
  powerpc/prom_init: Undo relocation before entering secure mode
  ANDROID: dummy_cpufreq: Implement get()
  ANDROID: gki_defconfig: enable CONFIG_CPUSETS
  ANDROID: virtio: virtio_input: Set the amount of multitouch slots in virtio input
  scsi: qla2xxx: stop timer in shutdown path
  hwmon: (ina3221) Fix read timeout issue
  net: usb: lan78xx: Disable interrupts before calling generic_handle_irq()
  Revert "ANDROID: Revert "kheaders: make headers archive reproducible""
  net: dsa: sja1105: improve NET_DSA_SJA1105_TAS dependency
  net: ethernet: ftgmac100: Fix DMA coherency issue with SW checksum
  net: fix sk_page_frag() recursion from memory reclaim
  udp: fix data-race in udp_set_dev_scratch()
  net: dpaa2: Use the correct style for SPDX License Identifier
  net: add READ_ONCE() annotation in __skb_wait_for_more_packets()
  net: use skb_queue_empty_lockless() in busy poll contexts
  net: use skb_queue_empty_lockless() in poll() handlers
  udp: use skb_queue_empty_lockless()
  net: add skb_queue_empty_lockless()
  ANDROID: gki_defconfig: enable CONFIG_CPU_FREQ_GOV_CONSERVATIVE
  RDMA/hns: Prevent memory leaks of eq->buf_list
  RISC-V: Add PCIe I/O BAR memory mapping
  RDMA/iw_cxgb4: Avoid freeing skb twice in arp failure case
  RDMA/mlx5: Use irq xarray locking for mkey_table
  ANDROID: fix VIDEOBUF2_CORE dependency in 'allmodconfig' builds
  UAS: Revert commit 3ae62a42 ("UAS: fix alignment of scatter/gather segments")
  usb-storage: Revert commit 747668db ("usb-storage: Set virt_boundary_mask to avoid SG overflows")
  usbip: Fix free of unallocated memory in vhci tx
  usbip: tools: Fix read_usb_vudc_device() error path handling
  usb: xhci: fix __le32/__le64 accessors in debugfs code
  usb: xhci: fix Immediate Data Transfer endianness
  xhci: Fix use-after-free regression in xhci clear hub TT implementation
  USB: ldusb: fix control-message timeout
  USB: ldusb: use unsigned size format specifiers
  USB: ldusb: fix ring-buffer locking
  USB: Skip endpoints with 0 maxpacket length
  io_uring: don't touch ctx in setup after ring fd install
  ANDROID: modpost: fix up merge issues due to namespace removal
  Revert "ALSA: hda: Flush interrupts on disabling"
  perf/headers: Fix spelling s/EACCESS/EACCES/, s/privilidge/privilege/
  perf/x86/uncore: Fix event group support
  perf/x86/amd/ibs: Handle erratum #420 only on the affected CPU family (10h)
  perf/x86/amd/ibs: Fix reading of the IBS OpData register and thus precise RIP validity
  perf/core: Start rejecting the syscall with attr.__reserved_2 set
  vringh: fix copy direction of vringh_iov_push_kern()
  vsock/virtio: remove unused 'work' field from 'struct virtio_vsock_pkt'
  virtio_ring: fix stalls for packed rings
  riscv: for C functions called only from assembly, mark with __visible
  riscv: fp: add missing __user pointer annotations
  riscv: add missing header file includes
  riscv: mark some code and data as file-static
  riscv: init: merge split string literals in preprocessor directive
  riscv: add prototypes for assembly language functions from head.S
  io_uring: Fix leaked shadow_req
  fix memory leak in large read decrypt offload
  Linux 5.4-rc5
  usb: cdns3: gadget: Don't manage pullups
  usb: dwc3: remove the call trace of USBx_GFLADJ
  usb: gadget: configfs: fix concurrent issue between composite APIs
  usb: dwc3: pci: prevent memory leak in dwc3_pci_probe
  usb: gadget: composite: Fix possible double free memory bug
  usb: gadget: udc: atmel: Fix interrupt storm in FIFO mode.
  usb: renesas_usbhs: fix type of buf
  usb: renesas_usbhs: Fix warnings in usbhsg_recip_handler_std_set_device()
  usb: gadget: udc: renesas_usb3: Fix __le16 warnings
  usb: renesas_usbhs: fix __le16 warnings
  usb: cdns3: include host-export,h for cdns3_host_init
  usb: mtu3: fix missing include of mtu3_dr.h
  usb: fsl: Check memory resource before releasing it
  usb: dwc3: select CONFIG_REGMAP_MMIO
  ANDROID: add README.md
  selftests: fib_tests: add more tests for metric update
  ipv4: fix route update on metric change.
  net: Zeroing the structure ethtool_wolinfo in ethtool_get_wol()
  ALSA: bebob: Fix prototype of helper function to return negative value
  cxgb4: request the TX CIDX updates to status page
  netns: fix GFP flags in rtnl_net_notifyid()
  net: ethernet: Use the correct style for SPDX License Identifier
  net/smc: keep vlan_id for SMC-R in smc_listen_work()
  net/smc: fix closing of fallback SMC sockets
  ANDROID: virt_wifi: Add data ops for scan data simulation
  ANDROID: Allow DRM_IOCTL_MODE_*_DUMB for render clients.
  riscv: cleanup do_trap_break
  net: hwbm: if CONFIG_NET_HWBM unset, make stub functions static
  ANDROID: cpufreq: create dummy cpufreq driver
  net: mvneta: make stub functions static inline
  net: sch_generic: Use pfifo_fast as fallback scheduler for CAN hardware
  nbd: verify socket is supported during setup
  ata: libahci_platform: Fix regulator_get_optional() misuse
  nbd: handle racing with error'ed out commands
  nbd: protect cmd->status with cmd->lock
  Revert "ANDROID: x86: Remove a useless warning message"
  ANDROID: init: GKI: enable hidden configs for media
  ANDROID: gki_defconfig: add FORTIFY_SOURCE, remove SPMI_MSM_PMIC_ARB
  Revert "Revert "Revert "Revert "x86/mm: Identify the end of the kernel area to be reserved""""
  build.config.*: Link android-mainline kernels with LLD
  ANDROID: ALSA: jack: Update supported jack switch types
  ANDROID: ASoC: compress: fix unsigned integer overflow check
  io_uring: fix bad inflight accounting for SETUP_IOPOLL|SETUP_SQTHREAD
  io_uring: used cached copies of sq->dropped and cq->overflow
  FROMLIST: iommu: Export core IOMMU functions to kernel modules
  FROMLIST: PCI: Export PCI ACS and DMA searching functions to modules
  FROMLIST: of: Export of_phandle_iterator_args() to modules
  ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
  io_uring: Fix race for sqes with userspace
  io_uring: Fix broken links with offloading
  io_uring: Fix corrupted user_data
  xen: issue deprecation warning for 32-bit pv guest
  kvm: Allocate memslots and buses before calling kvm_arch_init_vm
  powerpc/powernv/eeh: Fix oops when probing cxl devices
  irqchip/sifive-plic: Skip contexts except supervisor in plic_init()
  ANDROID: soc: qcom: Add required header to irq.h
  ACPI: processor: Add QoS requests for all CPUs
  cifs: Fix cifsInodeInfo lock_sem deadlock when reconnect occurs
  CIFS: Fix use after free of file info structures
  CIFS: Fix retry mid list corruption on reconnects
  scsi: sd: define variable dif as unsigned int instead of bool
  ANDROID: v4l2-compat-ioctl32.c: copy reserved fields
  scsi: target: cxgbit: Fix cxgbit_fw4_ack()
  IB/core: Avoid deadlock during netlink message handling
  ANDROID: of: property: Enable of_devlink by default
  virt_wifi: fix refcnt leak in module exit routine
  net: remove unnecessary variables and callback
  vxlan: add adjacent link to limit depth level
  net: core: add ignore flag to netdev_adjacent structure
  macsec: fix refcnt leak in module exit routine
  team: fix nested locking lockdep warning
  bonding: use dynamic lockdep key instead of subclass
  bonding: fix unexpected IFF_BONDING bit unset
  net: core: add generic lockdep keys
  net: core: limit nested device depth
  keys: Fix memory leak in copy_net_ns
  ANDROID: of: property: Make sure child dependencies don't block probing of parent
  ANDROID: driver core: Allow fwnode_operations.add_links to differentiate errors
  ANDROID: driver core: Allow a device to wait on optional suppliers
  ANDROID: driver core: Add device link support for SYNC_STATE_ONLY flag
  FROMGIT: docs: driver-model: Add documentation for sync_state
  FROMGIT: driver: core: Improve documentation for fwnode_operations.add_links()
  FROMGIT: of: property: Minor code formatting/style clean ups
  i2c: stm32f7: remove warning when compiling with W=1
  i2c: stm32f7: fix a race in slave mode with arbitration loss irq
  i2c: stm32f7: fix first byte to send in slave mode
  i2c: mt65xx: fix NULL ptr dereference
  RDMA/nldev: Skip counter if port doesn't match
  irqchip/gic-v3-its: Use the exact ITSList for VMOVP
  FROMLIST: drivers: pinctrl: msm: setup GPIO chip in hierarchy
  FROMLIST: drivers: irqchip: pdc: Add irqchip set/get state calls
  FROMLIST: genirq: Introduce irq_chip_get/set_parent_state calls
  FROMLIST: drivers: irqchip: pdc: additionally set type in SPI config registers
  FROMLIST: dt-bindings/interrupt-controller: pdc: add SPI config register
  FROMLIST: of: irq: document properties for wakeup interrupt parent
  FROMLIST: drivers: irqchip: add PDC irqdomain for wakeup capable GPIOs
  FROMLIST: drivers: irqchip: pdc: Do not toggle IRQ_ENABLE during mask/unmask
  FROMLIST: drivers: irqchip: qcom-pdc: update max PDC interrupts
  FROMLIST: irqdomain: add bus token DOMAIN_BUS_WAKEUP
  gfs2: Fix memory leak when gfs2meta's fs_context is freed
  ALSA: hda/realtek - Fix 2 front mics of codec 0x623
  ALSA: hda/realtek - Add support for ALC623
  ALSA: usb-audio: Add DSD support for Gustard U16/X26 USB Interface
  netfilter: nft_payload: fix missing check for matching length in offloads
  ipvs: move old_secure_tcp into struct netns_ipvs
  ipvs: don't ignore errors in case refcounting ip_vs module fails
  ANDROID: drop patches/ symbolic link
  mfd: mt6397: Fix probe after changing mt6397-core
  net: phy: smsc: LAN8740: add PHY_RST_AFTER_CLK_EN flag
  MIPS: tlbex: Fix build_restore_pagemask KScratch restore
  io_uring: correct timeout req sequence when inserting a new entry
  io_uring : correct timeout req sequence when waiting timeout
  io_uring: revert "io_uring: optimize submit_and_wait API"
  MIPS: bmips: mark exception vectors as char arrays
  xsk: Fix registration of Rx-only sockets
  net/flow_dissector: switch to siphash
  MAINTAINERS: Update the Spreadtrum SoC maintainer
  ANDROID: Revert "ANDROID: Removed check for asm-goto"
  riscv: cleanup <asm/bug.h>
  riscv: Fix undefined reference to vmemmap_populate_basepages
  riscv: Fix implicit declaration of 'page_to_section'
  riscv: fix fs/proc/kcore.c compilation with sparsemem enabled
  ANDROID: sdcardfs: evict dentries on fscrypt key removal
  ANDROID: fscrypt: add key removal notifier chain
  ANDROID: move up spin_unlock_bh() ahead of remove_proc_entry()
  ANDROID: Kconfig.gki: Add hidden MMC config support
  ANDROID: Kconfig.gki: Add Hidden QCOM configs
  ANDROID: Kconfig.gki: Add SND_PCM_ELD to HIDDEN_DRM configs
  ANDROID: Kconfig.gki: Add extra audio selections
  ANDROID: Kconfig.gki: Add extra GKI_HIDDEN_REGMAP_CONFIGS selections
  ANDROID: Four part re-add of asm-goto usage [4/4]
  ANDROID: Four part re-add of asm-goto usage [3/4]
  ANDROID: Four part re-add of asm-goto usage [2/4]
  ANDROID: Four part re-add of asm-goto usage [1/4]
  ANDROID: Move out patches/ and replace by link to kernel/common-patches project
  of: reserved_mem: add missing of_node_put() for proper ref-counting
  of: unittest: fix memory leak in unittest_data_add
  dt-bindings: riscv: Fix CPU schema errors
  MAINTAINERS: Remove Gregory and Brian for ARCH_BRCMSTB
  drm/v3d: Fix memory leak in v3d_submit_cl_ioctl
  panfrost: Properly undo pm_runtime_enable when deferring a probe
  dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle
  posix-cpu-timers: Fix two trivial comments
  timers/sched_clock: Include local timekeeping.h for missing declarations
  lib/vdso: Make clock_getres() POSIX compliant again
  fuse: redundant get_fuse_inode() calls in fuse_writepages_fill()
  fuse: Add changelog entries for protocols 7.1 - 7.8
  fuse: truncate pending writes on O_TRUNC
  fuse: flush dirty data/metadata before non-truncate setattr
  netfilter: nf_tables_offload: restore basechain deletion
  netfilter: nf_flow_table: set timeout before insertion into hashes
  rtlwifi: rtl_pci: Fix problem of too small skb->len
  iwlwifi: pcie: 0x2720 is qu and 0x30DC is not
  iwlwifi: pcie: add workaround for power gating in integrated 22000
  iwlwifi: mvm: handle iwl_mvm_tvqm_enable_txq() error return
  iwlwifi: pcie: fix all 9460 entries for qnj
  iwlwifi: pcie: fix PCI ID 0x2720 configs that should be soc
  rtlwifi: Fix potential overflow on P2P code
  iwlwifi: pcie: fix merge damage on making QnJ exclusive
  scripts/nsdeps: use alternative sed delimiter
  virtiofs: Remove set but not used variable 'fc'
  fs/dax: Fix pmd vs pte conflict detection
  opp: Reinitialize the list_kref before adding the static OPPs again
  bpf: Fix use after free in bpf_get_prog_name
  ALSA: hda: Add Tigerlake/Jasperlake PCI ID
  scsi: qla2xxx: Fix partial flash write of MBI
  scsi: qla2xxx: Initialized mailbox to prevent driver load failure
  scsi: lpfc: Honor module parameter lpfc_use_adisc
  ipv6: include <net/addrconf.h> for missing declarations
  net: openvswitch: free vport unless register_netdevice() succeeds
  selftests: Make l2tp.sh executable
  net: sched: taprio: fix -Wmissing-prototypes warnings
  bnxt_en: Avoid disabling pci device in bnxt_remove_one() for already disabled device.
  bnxt_en: Minor formatting changes in FW devlink_health_reporter
  bnxt_en: Adjust the time to wait before polling firmware readiness.
  bnxt_en: Fix devlink NVRAM related byte order related issues.
  bnxt_en: Fix the size of devlink MSIX parameters.
  net: stmmac: Fix the problem of tso_xmit
  dynamic_debug: provide dynamic_hex_dump stub
  bpf: Fix use after free in subprog's jited symbol removal
  RDMA/uverbs: Prevent potential underflow
  KVM: nVMX: Don't leak L1 MMIO regions to L2
  ARC: perf: Accommodate big-endian CPU
  ARC: [plat-hsdk]: Enable on-boardi SPI ADC IC
  ARC: [plat-hsdk]: Enable on-board SPI NOR flash IC
  KVM: SVM: Fix potential wrong physical id in avic_handle_ldr_update
  cpufreq: Cancel policy update work scheduled before freeing
  s390/kaslr: add support for R_390_GLOB_DAT relocation type
  s390/zcrypt: fix memleak at release
  ALSA: usb-audio: Fix copy&paste error in the validator
  perf/aux: Fix AUX output stopping
  kvm: clear kvmclock MSR on reset
  KVM: x86: fix bugon.cocci warnings
  KVM: VMX: Remove specialized handling of unexpected exit-reasons
  selftests: kvm: fix sync_regs_test with newer gccs
  selftests: kvm: vmx_dirty_log_test: skip the test when VMX is not supported
  selftests: kvm: consolidate VMX support checks
  selftests: kvm: vmx_set_nested_state_test: don't check for VMX support twice
  KVM: Don't shrink/grow vCPU halt_poll_ns if host side polling is disabled
  selftests: kvm: synchronize .gitignore to Makefile
  kvm: x86: Expose RDPID in KVM_GET_SUPPORTED_CPUID
  cpuidle: haltpoll: Take 'idle=' override into account
  ACPI: NFIT: Fix unlock on error in scrub_show()
  tracing: Fix race in perf_trace_buf initialization
  x86/cpu/vmware: Fix platform detection VMWARE_PORT macro
  x86/cpu/vmware: Use the full form of INL in VMWARE_HYPERCALL, for clang/llvm
  xdp: Handle device unregister for devmap_hash map type
  r8152: add device id for Lenovo ThinkPad USB-C Dock Gen 2
  ipv4: fix IPSKB_FRAG_PMTU handling with fragmentation
  ARM: 8926/1: v7m: remove register save to stack before svc
  Input: st1232 - fix reporting multitouch coordinates
  Revert "pwm: Let pwm_get_state() return the last implemented state"
  mmc: mxs: fix flags passed to dmaengine_prep_slave_sg
  virtiofs: Retry request submission from worker context
  virtiofs: Count pending forgets as in_flight forgets
  virtiofs: Set FR_SENT flag only after request has been sent
  virtiofs: No need to check fpq->connected state
  virtiofs: Do not end request in submission context
  fuse: don't advise readdirplus for negative lookup
  drm/komeda: Fix typos in komeda_splitter_validate
  drm/komeda: Don't flush inactive pipes
  i2c: aspeed: fix master pending state handling
  mmc: cqhci: Commit descriptors before setting the doorbell
  mmc: sdhci-omap: Fix Tuning procedure for temperatures < -20C
  ALSA: hda/realtek - Add support for ALC711
  perf/aux: Fix tracking of auxiliary trace buffer allocation
  fuse: don't dereference req->args on finished request
  opp: core: Revert "add regulators enable and disable"
  cifs: Fix missed free operations
  CIFS: avoid using MID 0xFFFF
  cifs: clarify comment about timestamp granularity for old servers
  cifs: Handle -EINPROGRESS only when noblockcnt is set
  PM: QoS: Drop frequency QoS types from device PM QoS
  cpufreq: Use per-policy frequency QoS
  PM: QoS: Introduce frequency QoS
  Linux 5.4-rc4
  hwmon: (nct7904) Fix the incorrect value of vsen_mask & tcpu_mask & temp_mode in nct7904_data struct.
  perf/x86/intel/pt: Fix base for single entry topa
  KVM: arm64: pmu: Reset sample period on overflow handling
  KVM: arm64: pmu: Set the CHAINED attribute before creating the in-kernel event
  arm64: KVM: Handle PMCR_EL0.LC as RES1 on pure AArch64 systems
  KVM: arm64: pmu: Fix cycle counter truncation
  net: reorder 'struct net' fields to avoid false sharing
  net: dsa: fix switch tree list
  net: ethernet: dwmac-sun8i: show message only when switching to promisc
  net: aquantia: add an error handling in aq_nic_set_multicast_list
  net: netem: correct the parent's backlog when corrupted packet was dropped
  net: netem: fix error path for corrupted GSO frames
  macb: propagate errors when getting optional clocks
  xen/netback: fix error path of xenvif_connect_data()
  net: hns3: fix mis-counting IRQ vector numbers issue
  scripts/gdb: fix debugging modules on s390
  kernel/events/uprobes.c: only do FOLL_SPLIT_PMD for uprobe register
  mm/thp: allow dropping THP from page cache
  mm/vmscan.c: support removing arbitrary sized pages from mapping
  mm/thp: fix node page state in split_huge_page_to_list()
  proc/meminfo: fix output alignment
  mm/init-mm.c: include <linux/mman.h> for vm_committed_as_batch
  mm/filemap.c: include <linux/ramfs.h> for generic_file_vm_ops definition
  mm: include <linux/huge_mm.h> for is_vma_temporary_stack
  zram: fix race between backing_dev_show and backing_dev_store
  mm/memcontrol: update lruvec counters in mem_cgroup_move_account
  ocfs2: fix panic due to ocfs2_wq is null
  hugetlbfs: don't access uninitialized memmaps in pfn_range_valid_gigantic()
  mm: memblock: do not enforce current limit for memblock_phys* family
  mm: memcg: get number of pages on the LRU list in memcgroup base on lru_zone_size
  mm/gup: fix a misnamed "write" argument, and a related bug
  mm/gup_benchmark: add a missing "w" to getopt string
  ocfs2: fix error handling in ocfs2_setattr()
  mm: memcg/slab: fix panic in __free_slab() caused by premature memcg pointer release
  mm/memunmap: don't access uninitialized memmap in memunmap_pages()
  mm/memory_hotplug: don't access uninitialized memmaps in shrink_pgdat_span()
  mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo
  scripts/gdb: fix lx-dmesg when CONFIG_PRINTK_CALLER is set
  mm/memory-failure.c: don't access uninitialized memmaps in memory_failure()
  fs/proc/page.c: don't access uninitialized memmaps in fs/proc/page.c
  drivers/base/memory.c: don't access uninitialized memmaps in soft_offline_page_store()
  xdp: Prevent overflow in devmap_hash cost calculation for 32-bit builds
  filldir[64]: remove WARN_ON_ONCE() for bad directory entries
  scsi: ufs-bsg: Wake the device before sending raw upiu commands
  scsi: lpfc: Check queue pointer before use
  mips: vdso: Fix __arch_get_hw_counter()
  MAINTAINERS: Use @kernel.org address for Paul Burton
  scsi: qla2xxx: fixup incorrect usage of host_byte
  selftests/bpf: More compatible nc options in test_tc_edt
  net/mlx5: fix memory leak in mlx5_fw_fatal_reporter_dump
  net/mlx5: prevent memory leak in mlx5_fpga_conn_create_cq
  net/mlx5e: TX, Fix consumer index of error cqe dump
  net/mlx5e: kTLS, Enhance TX resync flow
  net/mlx5e: kTLS, Save a copy of the crypto info
  net/mlx5e: kTLS, Remove unneeded cipher type checks
  net/mlx5e: kTLS, Limit DUMP wqe size
  net/mlx5e: kTLS, Fix missing SQ edge fill
  net/mlx5e: kTLS, Fix page refcnt leak in TX resync error flow
  net/mlx5e: kTLS, Save by-value copy of the record frags
  net/mlx5e: kTLS, Save only the frag page to release at completion
  net/mlx5e: kTLS, Size of a Dump WQE is fixed
  net/mlx5e: kTLS, Release reference on DUMPed fragments in shutdown flow
  net/mlx5e: Tx, Zero-memset WQE info struct upon update
  net/mlx5e: Tx, Fix assumption of single WQEBB of NOP in cleanup flow
  usb: cdns3: Error out if USB_DR_MODE_UNKNOWN in cdns3_core_init_role()
  ARM: dts: bcm2837-rpi-cm3: Avoid leds-gpio probing issue
  USB: ldusb: fix read info leaks
  IB/core: Use rdma_read_gid_l2_fields to compare GID L2 fields
  RDMA/qedr: Fix reported firmware version
  RDMA/siw: free siw_base_qp in kref release routine
  tracing: Fix "gfp_t" format for synthetic events
  RDMA/iwcm: move iw_rem_ref() calls out of spinlock
  iw_cxgb4: fix ECN check on the passive accept
  net: usb: lan78xx: Connect PHY before registering MAC
  vsock/virtio: discard packets if credit is not respected
  vsock/virtio: send a credit update when buffer size is changed
  mlxsw: spectrum_trap: Push Ethernet header before reporting trap
  ASoC: SOF: control: return true when kcontrol values change
  ASoC: stm32: sai: fix sysclk management on shutdown
  ASoC: Intel: sof-rt5682: add a check for devm_clk_get
  ASoC: rsnd: Reinitialize bit clock inversion flag for every format setting
  net: ensure correct skb->tstamp in various fragmenters
  net: bcmgenet: reset 40nm EPHY on energy detect
  net: bcmgenet: soft reset 40nm EPHYs before MAC init
  net: phy: bcm7xxx: define soft_reset for 40nm EPHY
  net: bcmgenet: don't set phydev->link from MAC
  bus: ti-sysc: Fix watchdog quirk handling
  ARM: OMAP2+: Add pdata for OMAP3 ISP IOMMU
  ARM: OMAP2+: Plug in device_enable/idle ops for IOMMUs
  iommu/vt-d: Return the correct dma mask when we are bypassing the IOMMU
  iommu/amd: Check PM_LEVEL_SIZE() condition in locked section
  nvme-pci: Set the prp2 correctly when using more than 4k page
  HID: i2c-hid: add Trekstor Primebook C11B to descriptor override
  symbol namespaces: revert to previous __ksymtab name scheme
  modpost: make updating the symbol namespace explicit
  modpost: delegate updating namespaces to separate function
  HID: logitech-hidpp: do all FF cleanup in hidpp_ff_destroy()
  HID: logitech-hidpp: rework device validation
  HID: logitech-hidpp: split g920_get_config()
  HID: i2c-hid: Remove runtime power management
  x86/boot/acpi: Move get_cmdline_acpi_rsdp() under #ifdef guard
  x86/hyperv: Set pv_info.name to "Hyper-V"
  ACPI: CPPC: Set pcc_data[pcc_ss_id] to NULL in acpi_cppc_processor_exit()
  dmaengine: qcom: bam_dma: Fix resource leak
  scsi: lpfc: remove left-over BUILD_NVME defines
  scsi: core: try to get module before removing device
  scsi: hpsa: add missing hunks in reset-patch
  scsi: target: core: Do not overwrite CDB byte 1
  net: Update address for MediaTek ethernet driver in MAINTAINERS
  ipv4: fix race condition between route lookup and invalidation
  ipv4: Return -ENETUNREACH if we can't create route but saddr is valid
  net: phy: micrel: Update KSZ87xx PHY name
  net: phy: micrel: Discern KSZ8051 and KSZ8795 PHYs
  io_uring: fix logic error in io_timeout
  io_uring: fix up O_NONBLOCK handling for sockets
  drm/amdgpu/vce: fix allocation size in enc ring test
  drm/amdgpu: fix error handling in amdgpu_bo_list_create
  drm/amdgpu: fix potential VM faults
  drm/amdgpu: user pages array memory leak fix
  drm/amdgpu/vcn: fix allocation size in enc ring test
  drm/amdgpu/uvd7: fix allocation size in enc ring test (v2)
  drm/amdgpu/uvd6: fix allocation size in enc ring test (v2)
  IB/hfi1: Use a common pad buffer for 9B and 16B packets
  IB/hfi1: Avoid excessive retry for TID RDMA READ request
  RDMA/mlx5: Clear old rate limit when closing QP
  net: dsa: microchip: Add shared regmap mutex
  net: dsa: microchip: Do not reinit mutexes on KSZ87xx
  net: stmmac: fix argument to stmmac_pcs_ctrl_ane()
  dpaa2-eth: Fix TX FQID values
  dpaa2-eth: add irq for the dpmac connect/disconnect event
  usb: hso: obey DMA rules in tiocmget
  Btrfs: check for the full sync flag while holding the inode lock during fsync
  Btrfs: fix qgroup double free after failure to reserve metadata for delalloc
  coccinelle: api/devm_platform_ioremap_resource: remove useless script
  ALSA: hda - Force runtime PM on Nvidia HDMI codecs
  dm cache: fix bugs when a GFP_NOWAIT allocation fails
  ARM: davinci_all_defconfig: enable GPIO backlight
  ARM: davinci: dm365: Fix McBSP dma_slave_map entry
  binder: Don't modify VMA bounds in ->mmap handler
  btrfs: tracepoints: Fix bad entry members of qgroup events
  btrfs: tracepoints: Fix wrong parameter order for qgroup events
  stop_machine: Avoid potential race behaviour
  EDAC/ghes: Fix Use after free in ghes_edac remove path
  ALSA: hda/realtek - Enable headset mic on Asus MJ401TA
  ALSA: usb-audio: Disable quirks for BOSS Katana amplifiers
  kheaders: substituting --sort in archive creation
  powerpc/32s: fix allow/prevent_user_access() when crossing segment boundaries.
  net: stmmac: disable/enable ptp_ref_clk in suspend/resume flow
  net: phy: Fix "link partner" information disappear issue
  rxrpc: use rcu protection while reading sk->sk_user_data
  drm/i915: Fixup preempt-to-busy vs resubmission of a virtual request
  drm/i915/userptr: Never allow userptr into the mappable GGTT
  drm/i915: Favor last VBT child device with conflicting AUX ch/DDC pin
  drm/i915/execlists: Refactor -EIO markup of hung requests
  Revert "blackhole_netdev: fix syzkaller reported issue"
  arm64: tags: Preserve tags for addresses translated via TTBR1
  arm64: mm: fix inverted PAR_EL1.F check
  arm64: sysreg: fix incorrect definition of SYS_PAR_EL1_F
  arm64: entry.S: Do not preempt from IRQ before all cpufeatures are enabled
  md/raid0: fix warning message for parameter default_layout
  kthread: make __kthread_queue_delayed_work static
  pinctrl: aspeed-g6: Rename SD3 to EMMC and rework pin groups
  pinctrl: aspeed-g6: Fix UART13 group pinmux
  pinctrl: aspeed-g6: Make SIG_DESC_CLEAR() behave intuitively
  pinctrl: aspeed-g6: Fix I3C3/I3C4 pinmux configuration
  pinctrl: aspeed-g6: Fix I2C14 SDA description
  pinctrl: aspeed-g6: Sort pins for sanity
  dt-bindings: pinctrl: aspeed-g6: Rework SD3 function and groups
  perf kmem: Fix memory leak in compact_gfp_flags()
  usercopy: Avoid soft lockups in test_check_nonzero_user()
  pinctrl: berlin: as370: fix a typo s/spififib/spdifib
  ACPI: processor: Avoid NULL pointer dereferences at init time
  USB: serial: ti_usb_3410_5052: clean up serial data access
  USB: serial: ti_usb_3410_5052: fix port-close races
  xtensa: fix change_bit in exclusive access option
  HID: intel-ish-hid: fix wrong error handling in ishtp_cl_alloc_tx_ring()
  RISC-V: fix virtual address overlapped in FIXADDR_START and VMEMMAP_START
  net: usb: sr9800: fix uninitialized local variable
  net: bcmgenet: Fix RGMII_MODE_EN value for GENET v1/2/3
  net: stmmac: make tc_flow_parsers static
  davinci_cpdma: make cpdma_chan_split_pool static
  net: i82596: fix dma_alloc_attr for sni_82596
  sctp: change sctp_prot .no_autobind with true
  sched: etf: Fix ordering of packets with same txtime
  net: avoid potential infinite loop in tc_ctl_action()
  net: dsa: sja1105: Use the correct style for SPDX License Identifier
  tcp: fix a possible lockdep splat in tcp_done()
  arm: dts: mediatek: Update mt7629 dts to reflect the latest dt-binding
  net: ethernet: mediatek: Fix MT7629 missing GMII mode support
  Revert "Input: elantech - enable SMBus on new (2018+) systems"
  net/sched: fix corrupted L2 header with MPLS 'push' and 'pop' actions
  net: avoid errors when trying to pop MLPS header on non-MPLS packets
  net: cavium: Use the correct style for SPDX License Identifier
  net: dsa: microchip: Use the correct style for SPDX License Identifier
  PCI: PM: Fix pci_power_up()
  xtensa: virt: fix PCI IO ports mapping
  libata/ahci: Fix PCS quirk application
  vfio/type1: Initialize resv_msi_base
  8250-men-mcb: fix error checking when get_num_ports returns -ENODEV
  USB: usblp: fix use-after-free on disconnect
  usb: udc: lpc32xx: fix bad bit shift operation
  usb: cdns3: Fix dequeue implementation.
  USB: legousbtower: fix a signedness bug in tower_probe()
  USB: legousbtower: fix memleak on disconnect
  USB: ldusb: fix memleak on disconnect
  net: ethernet: broadcom: have drivers select DIMLIB as needed
  net: Update address for vrf and l3mdev in MAINTAINERS
  net: bcmgenet: Set phydev->dev_flags only for internal PHYs
  blackhole_netdev: fix syzkaller reported issue
  ARM: dts: bcm2835-rpi-zero-w: Fix bus-width of sdhci
  sparc64: disable fast-GUP due to unexplained oopses
  btrfs: qgroup: Always free PREALLOC META reserve in btrfs_delalloc_release_extents()
  drm/panfrost: Handle resetting on timeout better
  blk-rq-qos: fix first node deletion of rq_qos_del()
  blkcg: Fix multiple bugs in blkcg_activate_policy()
  xfs: change the seconds fields in xfs_bulkstat to signed
  tools headers UAPI: Sync sched.h with the kernel
  rbd: cancel lock_dwork if the wait is interrupted
  ceph: just skip unrecognized info in ceph_reply_info_extra
  tools headers kvm: Sync kvm.h headers with the kernel sources
  tools headers kvm: Sync kvm headers with the kernel sources
  tools headers kvm: Sync kvm headers with the kernel sources
  perf c2c: Fix memory leak in build_cl_output()
  perf tools: Fix mode setting in copyfile_mode_ns()
  perf annotate: Fix multiple memory and file descriptor leaks
  io_uring: consider the overflow of sequence for timeout req
  perf tools: Fix resource leak of closedir() on the error paths
  perf evlist: Fix fix for freed id arrays
  perf jvmti: Link against tools/lib/ctype.h to have weak strlcpy()
  scripts: setlocalversion: fix a bashism
  kbuild: update comment about KBUILD_ALLDIRS
  virtio-fs: don't show mount options
  nvme-tcp: fix possible leakage during error flow
  nvmet-loop: fix possible leakage during error flow
  btrfs: don't needlessly create extent-refs kernel thread
  iommu/amd: Fix incorrect PASID decoding from event log
  iommu/ipmmu-vmsa: Only call platform_get_irq() when interrupt is mandatory
  iommu/rockchip: Don't use platform_get_irq to implicitly count irqs
  dmaengine: sprd: Fix the possible memory leak issue
  dmaengine: xilinx_dma: Fix control reg update in vdma_channel_set_config
  dmaengine: xilinx_dma: Fix 64-bit simple AXIDMA transfer
  x86/apic/x2apic: Fix a NULL pointer deref when handling a dying cpu
  x86/hyperv: Make vapic support x2apic mode
  KVM: PPC: Book3S HV: XIVE: Ensure VP isn't already in use
  arm64: hibernate: check pgd table allocation
  arm64: cpufeature: Treat ID_AA64ZFR0_EL1 as RAZ when SVE is not enabled
  net: aquantia: correctly handle macvlan and multicast coexistence
  net: aquantia: do not pass lro session with invalid tcp checksum
  net: aquantia: when cleaning hw cache it should be toggled
  net: aquantia: temperature retrieval fix
  gpio: lynxpoint: set default handler to be handle_bad_irq()
  gpio: merrifield: Move hardware initialization to callback
  gpio: lynxpoint: Move hardware initialization to callback
  gpio: intel-mid: Move hardware initialization to callback
  gpiolib: Initialize the hardware with a callback
  gpio: merrifield: Restore use of irq_base
  xtensa: drop EXPORT_SYMBOL for outs*/ins*
  mm/memory-failure: poison read receives SIGKILL instead of SIGBUS if mmaped more than once
  mm/slab.c: fix kernel-doc warning for __ksize()
  xarray.h: fix kernel-doc warning
  bitmap.h: fix kernel-doc warning and typo
  fs/fs-writeback.c: fix kernel-doc warning
  fs/libfs.c: fix kernel-doc warning
  fs/direct-io.c: fix kernel-doc warning
  mm, compaction: fix wrong pfn handling in __reset_isolation_pfn()
  mm, hugetlb: allow hugepage allocations to reclaim as needed
  lib/test_meminit: add a kmem_cache_alloc_bulk() test
  mm/slub.c: init_on_free=1 should wipe freelist ptr for bulk allocations
  lib/generic-radix-tree.c: add kmemleak annotations
  mm/slub: fix a deadlock in show_slab_objects()
  mm, page_owner: rename flag indicating that page is allocated
  mm, page_owner: decouple freeing stack trace from debug_pagealloc
  mm, page_owner: fix off-by-one error in __set_page_owner_handle()
  xtensa: fix type conversion in __get_user_[no]check
  xtensa: clean up assembly arguments in uaccess macros
  block: Fix elv_support_iosched()
  parisc: Remove 32-bit DMA enforcement from sba_iommu
  parisc: Fix vmap memory leak in ioremap()/iounmap()
  parisc: prefer __section from compiler_attributes.h
  parisc: sysctl.c: Use CONFIG_PARISC instead of __hppa_ define
  firmware: dmi: Fix unlikely out-of-bounds read in save_mem_devices
  riscv: tlbflush: remove confusing comment on local_flush_tlb_all()
  riscv: dts: HiFive Unleashed: add default chosen/stdout-path
  riscv: remove the switch statement in do_trap_break()
  drm/panfrost: Add missing GPU feature registers
  bpf: lwtunnel: Fix reroute supplying invalid dst
  xtensa: fix {get,put}_user() for 64bit values
  kmemleak: Do not corrupt the object_list during clean-up
  nvme-tcp: Initialize sk->sk_ll_usec only with NET_RX_BUSY_POLL
  nvme: Wait for reset state when required
  nvme: Prevent resets during paused controller state
  nvme: Restart request timers in resetting state
  nvme: Remove ADMIN_ONLY state
  nvme-pci: Free tagset if no IO queues
  hrtimer: Annotate lockless access to timer->base
  staging: wlan-ng: fix exit return when sme->key_idx >= NUM_WEPKEYS
  ARM: imx_v6_v7_defconfig: Enable CONFIG_DRM_MSM
  arm64: dts: imx8mn: Use correct clock for usdhc's ipg clk
  arm64: dts: imx8mm: Use correct clock for usdhc's ipg clk
  arm64: dts: imx8mq: Use correct clock for usdhc's ipg clk
  platform/x86: i2c-multi-instantiate: Fail the probe if no IRQ provided
  ARM: dts: imx7s: Correct GPT's ipg clock source
  ARM: dts: vf610-zii-scu4-aib: Specify 'i2c-mux-idle-disconnect'
  drm/ttm: fix handling in ttm_bo_add_mem_to_lru
  drm/ttm: Restore ttm prefaulting
  drm/ttm: fix busy reference in ttm_mem_evict_first
  ARM: dts: imx6q-logicpd: Re-Enable SNVS power key
  ath10k: fix latency issue for QCA988x
  virtio-fs: Change module name to virtiofs.ko
  dmaengine: imx-sdma: fix size check for sdma script_number
  dmaengine: tegra210-adma: fix transfer failure
  arm64: dts: lx2160a: Correct CPU core idle state name
  dmaengine: sprd: Fix the link-list pointer register configuration issue
  batman-adv: Avoid free/alloc race when handling OGM buffer
  batman-adv: Avoid free/alloc race when handling OGM2 buffer
  netdevsim: Fix error handling in nsim_fib_init and nsim_fib_exit
  net/ibmvnic: Fix EOI when running in XIVE mode.
  net: lpc_eth: avoid resetting twice
  tcp: annotate sk->sk_wmem_queued lockless reads
  tcp: annotate sk->sk_sndbuf lockless reads
  tcp: annotate sk->sk_rcvbuf lockless reads
  tcp: annotate tp->urg_seq lockless reads
  tcp: annotate tp->snd_nxt lockless reads
  tcp: annotate tp->write_seq lockless reads
  tcp: annotate tp->copied_seq lockless reads
  tcp: annotate tp->rcv_nxt lockless reads
  tcp: add rcu protection around tp->fastopen_rsk
  vhost/test: stop device before reset
  tools/virtio: xen stub
  mailmap: Add Simon Arlott (replacement for expired email address)
  rxrpc: Fix possible NULL pointer access in ICMP handling
  drm/amdgpu/sdma5: fix mask value of POLL_REGMEM packet for pipe sync
  drm/amdgpu: Bail earlier when amdgpu.cik_/si_support is not set to 1
  Revert "drm/radeon: Fix EEH during kexec"
  Input: synaptics-rmi4 - avoid processing unknown IRQs
  btrfs: block-group: Fix a memory leak due to missing btrfs_put_block_group()
  drm/msm/dsi: Implement reset correctly
  Btrfs: add missing extents release on file extent cluster relocation error
  x86/boot/64: Round memory hole size up to next PMD page
  x86/boot/64: Make level2_kernel_pgt pages invalid outside kernel area
  arm64: Fix kcore macros after 52-bit virtual addressing fallout
  tools/virtio: more stubs
  net/smc: receive pending data after RCV_SHUTDOWN
  net/smc: receive returns without data
  net/smc: fix SMCD link group creation with VLAN id
  net: update net_dim documentation after rename
  r8169: fix jumbo packet handling on resume from suspend
  arm64: dts: rockchip: Fix override mode for rk3399-kevin panel
  arm64: dts: rockchip: Fix usb-c on Hugsun X99 TV Box
  arm64: dts: rockchip: fix RockPro64 sdmmc settings
  ARM: 8914/1: NOMMU: Fix exc_ret for XIP
  ARM: 8908/1: add __always_inline to functions called from __get_user_check()
  HID: google: add magnemite/masterball USB ids
  MAINTAINERS: Add BCM2711 to BCM2835 ARCH
  dma-buf/resv: fix exclusive fence get
  drm/edid: Add 6 bpc quirk for SDC panel in Lenovo G50
  dm snapshot: rework COW throttling to fix deadlock
  dm snapshot: introduce account_start_copy() and account_end_copy()
  drm/tiny: Kconfig: Remove always-y THERMAL dep. from TINYDRM_REPAPER
  platform/x86: intel_punit_ipc: Avoid error message when retrieving IRQ
  platform/x86: classmate-laptop: remove unused variable
  opp: of: drop incorrect lockdep_assert_held()
  PM: sleep: include <linux/pm_runtime.h> for pm_wq
  cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown
  ACPI: PM: Drop Dell XPS13 9360 from LPS0 Idle _DSM blacklist
  net: silence KCSAN warnings about sk->sk_backlog.len reads
  net: annotate sk->sk_rcvlowat lockless reads
  net: silence KCSAN warnings around sk_add_backlog() calls
  tcp: annotate lockless access to tcp_memory_pressure
  net: add {READ|WRITE}_ONCE() annotations on ->rskq_accept_head
  net: avoid possible false sharing in sk_leave_memory_pressure()
  tun: remove possible false sharing in tun_flow_update()
  netfilter: conntrack: avoid possible false sharing
  netns: fix NLM_F_ECHO mechanism for RTM_NEWNSID
  scsi: ch: Make it possible to open a ch device multiple times again
  scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE
  scsi: sni_53c710: fix compilation error
  scsi: scsi_dh_alua: handle RTPG sense code correctly during state transitions
  scsi: qla2xxx: fix a potential NULL pointer dereference
  net: usb: qmi_wwan: add Telit 0x1050 composition
  act_mirred: Fix mirred_init_module error handling
  net: taprio: Fix returning EINVAL when configuring without flags
  s390/qeth: Fix initialization of vnicc cmd masks during set online
  s390/qeth: Fix error handling during VNICC initialization
  phylink: fix kernel-doc warnings
  sctp: add chunks to sk_backlog when the newsk sk_socket is not set
  bonding: fix potential NULL deref in bond_update_slave_arr
  net: stmmac: fix disabling flexible PPS output
  net: stmmac: fix length of PTP clock's name string
  ARM: mm: alignment: use "u32" for 32-bit instructions
  ARM: mm: fix alignment handler faults under memory pressure
  ARM: dts: Use level interrupt for omap4 & 5 wlcore
  drivers/amba: fix reset control error handling
  ASoC: simple_card_utils.h: Fix potential multiple redefinition error
  ASoC: msm8916-wcd-digital: add missing MIX2 path for RX1/2
  drm/amdgpu/powerplay: fix typo in mvdd table setup
  iwlwifi: pcie: change qu with jf devices to use qu configuration
  iwlwifi: exclude GEO SAR support for 3168
  iwlwifi: pcie: fix memory leaks in iwl_pcie_ctxt_info_gen3_init
  iwlwifi: dbg_ini: fix memory leak in alloc_sgtable
  iwlwifi: pcie: fix rb_allocator workqueue allocation
  iwlwifi: pcie: fix indexing in command dump for new HW
  iwlwifi: mvm: fix race in sync rx queue notification
  iwlwifi: mvm: force single phy init
  iwlwifi: fix ACPI table revision checks
  iwlwifi: don't access trans_cfg via cfg
  memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'
  mmc: sdhci-iproc: fix spurious interrupts on Multiblock reads with bcm2711
  pinctrl: armada-37xx: swap polarity on LED group
  arm64: dts: armada-3720-turris-mox: convert usb-phy to phy-supply
  ip6erspan: remove the incorrect mtu limit for ip6erspan
  Doc: networking/device_drivers/pensando: fix ionic.rst warnings
  NFC: pn533: fix use-after-free and memleaks
  Input: soc_button_array - partial revert of support for newer surface devices
  net_sched: fix backward compatibility for TCA_ACT_KIND
  net_sched: fix backward compatibility for TCA_KIND
  net/mlx5: DR, Allow insertion of duplicate rules
  selftests/bpf: More compatible nc options in test_lwt_ip_encap
  selftests/bpf: Set rp_filter in test_flow_dissector
  llc: fix sk_buff refcounting in llc_conn_state_process()
  llc: fix another potential sk_buff leak in llc_ui_sendmsg()
  llc: fix sk_buff leak in llc_conn_service()
  llc: fix sk_buff leak in llc_sap_state_process()
  dm clone: Make __hash_find static
  rt2x00: remove input-polldev.h header
  ARM: dts: am3874-iceboard: Fix 'i2c-mux-idle-disconnect' usage
  ARM: dts: omap5: fix gpu_cm clock provider name
  arm64: Allow CAVIUM_TX2_ERRATUM_219 to be selected
  arm64: Avoid Cavium TX2 erratum 219 when switching TTBR
  arm64: Enable workaround for Cavium TX2 erratum 219 when running SMT
  arm64: KVM: Trap VM ops when ARM64_WORKAROUND_CAVIUM_TX2_219_TVM is set
  mac80211: fix scan when operating on DFS channels in ETSI domains
  mac80211: accept deauth frames in IBSS mode
  cfg80211: fix a bunch of RCU issues in multi-bssid code
  nl80211: fix memory leak in nl80211_get_ftm_responder_stats
  ptp: fix typo of "mechanism" in Kconfig help text
  ionic: fix stats memory dereference
  ASoC: core: Fix pcm code debugfs error
  ARM: dts: sun7i: Drop the module clock from the device tree
  dt-bindings: media: sun4i-csi: Drop the module clock
  rxrpc: Fix call crypto state cleanup
  rxrpc: rxrpc_peer needs to hold a ref on the rxrpc_local record
  rxrpc: Fix trace-after-put looking at the put call record
  rxrpc: Fix trace-after-put looking at the put connection record
  rxrpc: Fix trace-after-put looking at the put peer record
  media: dt-bindings: Fix building error for dt_binding_check
  rxrpc: Fix call ref leak
  ALSA: hdac: clear link output stream mapping
  ALSA: hda/realtek: Reduce the Headphone static noise on XPS 9350/9360
  lib: test_user_copy: style cleanup
  net: stmmac: selftests: Fix L2 Hash Filter test
  net: stmmac: gmac4+: Not all Unicast addresses may be available
  net: stmmac: selftests: Check if filtering is available before running
  net: dsa: b53: Do not clear existing mirrored port mask
  arm64: dts: zii-ultra: fix ARM regulator states
  soc: imx: imx-scu: Getting UID from SCU should have response
  pinctrl: stmfx: fix null pointer on remove
  pinctrl: iproc: allow for error from platform_get_irq()
  nvme: retain split access workaround for capability reads
  nvme: fix possible deadlock when nvme_update_formats fails
  pinctrl: ns2: Fix off by one bugs in ns2_pinmux_enable()
  pinctrl: bcm-iproc: Use SPDX header
  pinctrl: armada-37xx: fix control of pins 32 and up
  arm64: dts: rockchip: fix RockPro64 sdhci settings
  arm64: dts: rockchip: fix RockPro64 vdd-log regulator settings
  regulator: qcom-rpmh: Fix PMIC5 BoB min voltage
  ARM: dts: logicpd-torpedo-som: Remove twl_keypad
  cfg80211: wext: avoid copying malformed SSIDs
  mac80211: Reject malformed SSID elements
  mac80211_hwsim: fix incorrect dev_alloc_name failure goto
  MAINTAINERS: Add hp_sdc drivers to parisc arch
  scsi: MAINTAINERS: Update qla2xxx driver
  scsi: zfcp: fix reaction on bit error threshold notification
  scsi: core: save/restore command resid for error handling
  dt-bindings: arm: rockchip: fix Theobroma-System board bindings
  arm64: dts: rockchip: fix Rockpro64 RK808 interrupt line
  HID: Fix assumption that devices have inputs
  ARM: omap2plus_defconfig: Fix selected panels after generic panel changes
  samples/bpf: Add a workaround for asm_inline
  xsk: Fix crash in poll when device does not support ndo_xsk_wakeup
  samples/bpf: Fix build for task_fd_query_user.c
  ASoc: rockchip: i2s: Fix RPM imbalance
  mmc: sh_mmcif: Use platform_get_irq_optional() for optional interrupt
  mmc: renesas_sdhi: Do not use platform_get_irq() to count interrupts
  ACPI: HMAT: ACPI_HMAT_MEMORY_PD_VALID is deprecated since ACPI-6.3
  Input: goodix - add support for 9-bytes reports
  Input: da9063 - fix capability and drop KEY_SLEEP
  ASoC: wm_adsp: Don't generate kcontrols without READ flags
  sysfs: Fixes __BIN_ATTR_WO() macro
  rt2x00: initialize last_reset
  selftests/bpf: test_progs: Don't leak server_fd in test_sockopt_inherit
  selftests/bpf: test_progs: Don't leak server_fd in tcp_rtt
  regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized
  ASoC: intel: bytcr_rt5651: add null check to support_button_press
  ASoC: intel: sof_rt5682: add remove function to disable jack
  ASoC: rt5682: add NULL handler to set_jack function
  ASoC: intel: sof_rt5682: use separate route map for dmic
  ASoC: SOF: Intel: hda: Disable DMI L1 entry during capture
  ASoC: SOF: Intel: initialise and verify FW crash dump data.
  ASoC: SOF: Intel: hda: fix warnings during FW load
  ASoC: SOF: pcm: harden PCM STOP sequence
  ASoC: SOF: pcm: fix resource leak in hw_free
  ASoC: SOF: topology: fix parse fail issue for byte/bool tuple types
  ASoC: SOF: loader: fix kernel oops on firmware boot failure
  regulator: lochnagar: Add on_off_delay for VDDCORE
  ASoC: wm_adsp: Fix theoretical NULL pointer for alg_region
  pinctrl: cherryview: restore Strago DMI workaround for all versions
  pinctrl: intel: Allocate IRQ chip dynamic
  HID: prodikeys: make array keys static const, makes object smaller
  HID: fix error message in hid_open_report()
  ASoC: max98373: check for device node before parsing
  regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone
  iommu/io-pgtable-arm: Support all Mali configurations
  iommu/io-pgtable-arm: Correct Mali attributes
  iommu/arm-smmu: Free context bitmap in the err path of arm_smmu_init_domain_context
  scsi: qla2xxx: Remove WARN_ON_ONCE in qla2x00_status_cont_entry()
  scsi: sd: Ignore a failure to sync cache due to lack of authorization
  arm64: dts: Fix gpio to pinmux mapping
  libbpf: handle symbol versioning properly for libbpf.a
  arm64: dts: allwinner: a64: sopine-baseboard: Add PHY regulator delay
  arm64: dts: allwinner: a64: Drop PMU node
  arm64: dts: allwinner: a64: pine64-plus: Add PHY regulator delay
  tools: bpf: Use !building_out_of_srctree to determine srctree
  ASoC: topology: Fix a signedness bug in soc_tplg_dapm_widget_create()
  scsi: core: fix dh and multipathing for SCSI hosts without request batching
  scsi: core: fix missing .cleanup_rq for SCSI hosts without request batching
  regulator: da9062: fix suspend_enable/disable preparation
  dt-bindings: fixed-regulator: fix compatible enum
  regulator: fixed: Prevent NULL pointer dereference when !CONFIG_OF
  ASoC: soc-component: fix a couple missing error assignments
  ASoC: wm8994: Do not register inapplicable controls for WM1811
  ASoC: samsung: arndale: Add missing OF node dereferencing
  irqchip/sifive-plic: Switch to fasteoi flow
  irqchip/gic-v3: Fix GIC_LINE_NR accessor
  regulator: core: make regulator_register() EPROBE_DEFER aware
  regulator: of: fix suspend-min/max-voltage parsing
  irqchip/atmel-aic5: Add support for sam9x60 irqchip
  irqchip/al-fic: Add support for irq retrigger

Change-Id: I5e7fd941c93a36889378f480cc27d8ea77d11b39
Signed-off-by: default avatarRaghavendra Rao Ananta <rananta@codeaurora.org>
parents 812f0991 aefd2d63
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+3 −1
Original line number Diff line number Diff line
@@ -196,7 +196,8 @@ Oleksij Rempel <linux@rempel-privat.de> <o.rempel@pengutronix.de>
Oleksij Rempel <linux@rempel-privat.de> <ore@pengutronix.de>
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Patrick Mochel <mochel@digitalimplant.org>
Paul Burton <paul.burton@mips.com> <paul.burton@imgtec.com>
Paul Burton <paulburton@kernel.org> <paul.burton@imgtec.com>
Paul Burton <paulburton@kernel.org> <paul.burton@mips.com>
Peter A Jonsson <pj@ludd.ltu.se>
Peter Oruba <peter@oruba.de>
Peter Oruba <peter.oruba@amd.com>
@@ -229,6 +230,7 @@ Shuah Khan <shuah@kernel.org> <shuahkhan@gmail.com>
Shuah Khan <shuah@kernel.org> <shuah.khan@hp.com>
Shuah Khan <shuah@kernel.org> <shuahkh@osg.samsung.com>
Shuah Khan <shuah@kernel.org> <shuah.kh@samsung.com>
Simon Arlott <simon@octiron.net> <simon@fire.lp0.eu>
Simon Kelley <simon@thekelleys.org.uk>
Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>
Stephen Hemminger <shemminger@osdl.org>
+8 −1
Original line number Diff line number Diff line
@@ -91,6 +91,11 @@ stable kernels.
| ARM            | MMU-500         | #841119,826419  | N/A                         |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
| Broadcom       | Brahma-B53      | N/A             | ARM64_ERRATUM_845719        |
+----------------+-----------------+-----------------+-----------------------------+
| Broadcom       | Brahma-B53      | N/A             | ARM64_ERRATUM_843419        |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
| Cavium         | ThunderX ITS    | #22375,24313    | CAVIUM_ERRATUM_22375        |
+----------------+-----------------+-----------------+-----------------------------+
| Cavium         | ThunderX ITS    | #23144          | CAVIUM_ERRATUM_23144        |
@@ -107,6 +112,8 @@ stable kernels.
+----------------+-----------------+-----------------+-----------------------------+
| Cavium         | ThunderX2 SMMUv3| #126            | N/A                         |
+----------------+-----------------+-----------------+-----------------------------+
| Cavium         | ThunderX2 Core  | #219            | CAVIUM_TX2_ERRATUM_219      |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
| Freescale/NXP  | LS2080A/LS1043A | A-008585        | FSL_ERRATUM_A008585         |
+----------------+-----------------+-----------------+-----------------------------+
@@ -124,7 +131,7 @@ stable kernels.
+----------------+-----------------+-----------------+-----------------------------+
| Qualcomm Tech. | Kryo/Falkor v1  | E1003           | QCOM_FALKOR_ERRATUM_1003    |
+----------------+-----------------+-----------------+-----------------------------+
| Qualcomm Tech. | Falkor v1       | E1009           | QCOM_FALKOR_ERRATUM_1009    |
| Qualcomm Tech. | Kryo/Falkor v1  | E1009           | QCOM_FALKOR_ERRATUM_1009    |
+----------------+-----------------+-----------------+-----------------------------+
| Qualcomm Tech. | QDF2400 ITS     | E0065           | QCOM_QDF2400_ERRATUM_0065   |
+----------------+-----------------+-----------------+-----------------------------+
+1 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ Block
   cmdline-partition
   data-integrity
   deadline-iosched
   inline-encryption
   ioprio
   kyber-iosched
   null_blk
+183 −0
Original line number Diff line number Diff line
.. SPDX-License-Identifier: GPL-2.0

=================
Inline Encryption
=================

Objective
=========

We want to support inline encryption (IE) in the kernel.
To allow for testing, we also want a crypto API fallback when actual
IE hardware is absent. We also want IE to work with layered devices
like dm and loopback (i.e. we want to be able to use the IE hardware
of the underlying devices if present, or else fall back to crypto API
en/decryption).


Constraints and notes
=====================

- IE hardware have a limited number of "keyslots" that can be programmed
  with an encryption context (key, algorithm, data unit size, etc.) at any time.
  One can specify a keyslot in a data request made to the device, and the
  device will en/decrypt the data using the encryption context programmed into
  that specified keyslot. When possible, we want to make multiple requests with
  the same encryption context share the same keyslot.

- We need a way for filesystems to specify an encryption context to use for
  en/decrypting a struct bio, and a device driver (like UFS) needs to be able
  to use that encryption context when it processes the bio.

- We need a way for device drivers to expose their capabilities in a unified
  way to the upper layers.


Design
======

We add a struct bio_crypt_ctx to struct bio that can represent an
encryption context, because we need to be able to pass this encryption
context from the FS layer to the device driver to act upon.

While IE hardware works on the notion of keyslots, the FS layer has no
knowledge of keyslots - it simply wants to specify an encryption context to
use while en/decrypting a bio.

We introduce a keyslot manager (KSM) that handles the translation from
encryption contexts specified by the FS to keyslots on the IE hardware.
This KSM also serves as the way IE hardware can expose their capabilities to
upper layers. The generic mode of operation is: each device driver that wants
to support IE will construct a KSM and set it up in its struct request_queue.
Upper layers that want to use IE on this device can then use this KSM in
the device's struct request_queue to translate an encryption context into
a keyslot. The presence of the KSM in the request queue shall be used to mean
that the device supports IE.

On the device driver end of the interface, the device driver needs to tell the
KSM how to actually manipulate the IE hardware in the device to do things like
programming the crypto key into the IE hardware into a particular keyslot. All
this is achieved through the :c:type:`struct keyslot_mgmt_ll_ops` that the
device driver passes to the KSM when creating it.

It uses refcounts to track which keyslots are idle (either they have no
encryption context programmed, or there are no in-flight struct bios
referencing that keyslot). When a new encryption context needs a keyslot, it
tries to find a keyslot that has already been programmed with the same
encryption context, and if there is no such keyslot, it evicts the least
recently used idle keyslot and programs the new encryption context into that
one. If no idle keyslots are available, then the caller will sleep until there
is at least one.


Blk-crypto
==========

The above is sufficient for simple cases, but does not work if there is a
need for a crypto API fallback, or if we are want to use IE with layered
devices. To these ends, we introduce blk-crypto. Blk-crypto allows us to
present a unified view of encryption to the FS (so FS only needs to specify
an encryption context and not worry about keyslots at all), and blk-crypto
can decide whether to delegate the en/decryption to IE hardware or to the
crypto API. Blk-crypto maintains an internal KSM that serves as the crypto
API fallback.

Blk-crypto needs to ensure that the encryption context is programmed into the
"correct" keyslot manager for IE. If a bio is submitted to a layered device
that eventually passes the bio down to a device that really does support IE, we
want the encryption context to be programmed into a keyslot for the KSM of the
device with IE support. However, blk-crypto does not know a priori whether a
particular device is the final device in the layering structure for a bio or
not. So in the case that a particular device does not support IE, since it is
possibly the final destination device for the bio, if the bio requires
encryption (i.e. the bio is doing a write operation), blk-crypto must fallback
to the crypto API *before* sending the bio to the device.

Blk-crypto ensures that:

- The bio's encryption context is programmed into a keyslot in the KSM of the
  request queue that the bio is being submitted to (or the crypto API fallback
  KSM if the request queue doesn't have a KSM), and that the ``processing_ksm``
  in the ``bi_crypt_context`` is set to this KSM

- That the bio has its own individual reference to the keyslot in this KSM.
  Once the bio passes through blk-crypto, its encryption context is programmed
  in some KSM. The "its own individual reference to the keyslot" ensures that
  keyslots can be released by each bio independently of other bios while
  ensuring that the bio has a valid reference to the keyslot when, for e.g., the
  crypto API fallback KSM in blk-crypto performs crypto on the device's behalf.
  The individual references are ensured by increasing the refcount for the
  keyslot in the ``processing_ksm`` when a bio with a programmed encryption
  context is cloned.


What blk-crypto does on bio submission
--------------------------------------

**Case 1:** blk-crypto is given a bio with only an encryption context that hasn't
been programmed into any keyslot in any KSM (for e.g. a bio from the FS).
  In this case, blk-crypto will program the encryption context into the KSM of the
  request queue the bio is being submitted to (and if this KSM does not exist,
  then it will program it into blk-crypto's internal KSM for crypto API
  fallback). The KSM that this encryption context was programmed into is stored
  as the ``processing_ksm`` in the bio's ``bi_crypt_context``.

**Case 2:** blk-crypto is given a bio whose encryption context has already been
programmed into a keyslot in the *crypto API fallback* KSM.
  In this case, blk-crypto does nothing; it treats the bio as not having
  specified an encryption context. Note that we cannot do here what we will do
  in Case 3 because we would have already encrypted the bio via the crypto API
  by this point.

**Case 3:** blk-crypto is given a bio whose encryption context has already been
programmed into a keyslot in some KSM (that is *not* the crypto API fallback
KSM).
  In this case, blk-crypto first releases that keyslot from that KSM and then
  treats the bio as in Case 1.

This way, when a device driver is processing a bio, it can be sure that
the bio's encryption context has been programmed into some KSM (either the
device driver's request queue's KSM, or blk-crypto's crypto API fallback KSM).
It then simply needs to check if the bio's processing_ksm is the device's
request queue's KSM. If so, then it should proceed with IE. If not, it should
simply do nothing with respect to crypto, because some other KSM (perhaps the
blk-crypto crypto API fallback KSM) is handling the en/decryption.

Blk-crypto will release the keyslot that is being held by the bio (and also
decrypt it if the bio is using the crypto API fallback KSM) once
``bio_remaining_done`` returns true for the bio.


Layered Devices
===============

Layered devices that wish to support IE need to create their own keyslot
manager for their request queue, and expose whatever functionality they choose.
When a layered device wants to pass a bio to another layer (either by
resubmitting the same bio, or by submitting a clone), it doesn't need to do
anything special because the bio (or the clone) will once again pass through
blk-crypto, which will work as described in Case 3. If a layered device wants
for some reason to do the IO by itself instead of passing it on to a child
device, but it also chose to expose IE capabilities by setting up a KSM in its
request queue, it is then responsible for en/decrypting the data itself. In
such cases, the device can choose to call the blk-crypto function
``blk_crypto_fallback_to_kernel_crypto_api`` (TODO: Not yet implemented), which will
cause the en/decryption to be done via the crypto API fallback.


Future Optimizations for layered devices
========================================

Creating a keyslot manager for the layered device uses up memory for each
keyslot, and in general, a layered device (like dm-linear) merely passes the
request on to a "child" device, so the keyslots in the layered device itself
might be completely unused. We can instead define a new type of KSM; the
"passthrough KSM", that layered devices can use to let blk-crypto know that
this layered device *will* pass the bio to some child device (and hence
through blk-crypto again, at which point blk-crypto can program the encryption
context, instead of programming it into the layered device's KSM). Again, if
the device "lies" and decides to do the IO itself instead of passing it on to
a child device, it is responsible for doing the en/decryption (and can choose
to call ``blk_crypto_fallback_to_kernel_crypto_api``). Another use case for the
"passthrough KSM" is for IE devices that want to manage their own keyslots/do
not have a limited number of keyslots.
+3 −0
Original line number Diff line number Diff line
@@ -41,6 +41,9 @@ smaller binary while the latter is 1.1 - 2 times faster.
Both KASAN modes work with both SLUB and SLAB memory allocators.
For better bug detection and nicer reporting, enable CONFIG_STACKTRACE.

To augment reports with last allocation and freeing stack of the physical page,
it is recommended to enable also CONFIG_PAGE_OWNER and boot with page_owner=on.

To disable instrumentation for specific files or directories, add a line
similar to the following to the respective kernel Makefile:

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