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android11-5.4
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Author SHA1 Message Date
Michael Bestas
29949ccfbb
Merge tag 'ASB-2023-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 
https://source.android.com/docs/security/bulletin/2023-08-01
CVE-2023-21264
CVE-2020-29374

* tag 'ASB-2023-08-05_11-5.4' of https://android.googlesource.com/kernel/common:
  UPSTREAM: media: dvb-core: Fix kernel WARNING for blocking operation in wait_event*()
  ANDROID: ABI: Update allowed list for QCOM
  UPSTREAM: usb: gadget: udc: renesas_usb3: Fix use after free bug in renesas_usb3_remove due to race condition
  UPSTREAM: x86/mm: Avoid using set_pgd() outside of real PGD pages
  UPSTREAM: net/sched: flower: fix possible OOB write in fl_set_geneve_opt()
  Linux 5.4.249
  xfs: verify buffer contents when we skip log replay
  mm: make wait_on_page_writeback() wait for multiple pending writebacks
  mm: fix VM_BUG_ON(PageTail) and BUG_ON(PageWriteback)
  i2c: imx-lpi2c: fix type char overflow issue when calculating the clock cycle
  x86/apic: Fix kernel panic when booting with intremap=off and x2apic_phys
  drm/radeon: fix race condition UAF in radeon_gem_set_domain_ioctl
  drm/exynos: fix race condition UAF in exynos_g2d_exec_ioctl
  drm/exynos: vidi: fix a wrong error return
  ARM: dts: Fix erroneous ADS touchscreen polarities
  ASoC: nau8824: Add quirk to active-high jack-detect
  s390/cio: unregister device when the only path is gone
  usb: gadget: udc: fix NULL dereference in remove()
  nfcsim.c: Fix error checking for debugfs_create_dir
  media: cec: core: don't set last_initiator if tx in progress
  arm64: Add missing Set/Way CMO encodings
  HID: wacom: Add error check to wacom_parse_and_register()
  scsi: target: iscsi: Prevent login threads from racing between each other
  sch_netem: acquire qdisc lock in netem_change()
  Revert "net: phy: dp83867: perform soft reset and retain established link"
  netfilter: nfnetlink_osf: fix module autoload
  netfilter: nf_tables: disallow element updates of bound anonymous sets
  be2net: Extend xmit workaround to BE3 chip
  net: dsa: mt7530: fix trapping frames on non-MT7621 SoC MT7530 switch
  ipvs: align inner_mac_header for encapsulation
  mmc: usdhi60rol0: fix deferred probing
  mmc: sh_mmcif: fix deferred probing
  mmc: sdhci-acpi: fix deferred probing
  mmc: omap_hsmmc: fix deferred probing
  mmc: omap: fix deferred probing
  mmc: mvsdio: fix deferred probing
  mmc: mvsdio: convert to devm_platform_ioremap_resource
  mmc: mtk-sd: fix deferred probing
  net: qca_spi: Avoid high load if QCA7000 is not available
  xfrm: Linearize the skb after offloading if needed.
  ieee802154: hwsim: Fix possible memory leaks
  rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
  x86/mm: Avoid using set_pgd() outside of real PGD pages
  cifs: Fix potential deadlock when updating vol in cifs_reconnect()
  cifs: Merge is_path_valid() into get_normalized_path()
  cifs: Introduce helpers for finding TCP connection
  cifs: Get rid of kstrdup_const()'d paths
  cifs: Clean up DFS referral cache
  nilfs2: prevent general protection fault in nilfs_clear_dirty_page()
  writeback: fix dereferencing NULL mapping->host on writeback_page_template
  ip_tunnels: allow VXLAN/GENEVE to inherit TOS/TTL from VLAN
  mmc: meson-gx: remove redundant mmc_request_done() call from irq context
  cgroup: Do not corrupt task iteration when rebinding subsystem
  PCI: hv: Fix a race condition bug in hv_pci_query_relations()
  Drivers: hv: vmbus: Fix vmbus_wait_for_unload() to scan present CPUs
  nilfs2: fix buffer corruption due to concurrent device reads
  media: dvb-core: Fix use-after-free due to race at dvb_register_device()
  media: dvbdev: fix error logic at dvb_register_device()
  media: dvbdev: Fix memleak in dvb_register_device
  tick/common: Align tick period during sched_timer setup
  x86/purgatory: remove PGO flags
  tracing: Add tracing_reset_all_online_cpus_unlocked() function
  epoll: ep_autoremove_wake_function should use list_del_init_careful
  list: add "list_del_init_careful()" to go with "list_empty_careful()"
  mm: rewrite wait_on_page_bit_common() logic
  nilfs2: reject devices with insufficient block count
  Revert "neighbour: Replace zero-length array with flexible-array member"
  Revert "neighbour: fix unaligned access to pneigh_entry"
  Revert "tcp: deny tcp_disconnect() when threads are waiting"
  Linux 5.4.248
  mmc: block: ensure error propagation for non-blk
  drm/nouveau/kms: Fix NULL pointer dereference in nouveau_connector_detect_depth
  neighbour: delete neigh_lookup_nodev as not used
  net: Remove unused inline function dst_hold_and_use()
  neighbour: Remove unused inline function neigh_key_eq16()
  afs: Fix vlserver probe RTT handling
  selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET
  net: tipc: resize nlattr array to correct size
  net: lapbether: only support ethernet devices
  net/sched: cls_api: Fix lockup on flushing explicitly created chain
  drm/nouveau: add nv_encoder pointer check for NULL
  drm/nouveau/kms: Don't change EDID when it hasn't actually changed
  drm/nouveau/dp: check for NULL nv_connector->native_mode
  igb: fix nvm.ops.read() error handling
  sctp: fix an error code in sctp_sf_eat_auth()
  ipvlan: fix bound dev checking for IPv6 l3s mode
  IB/isert: Fix incorrect release of isert connection
  IB/isert: Fix possible list corruption in CMA handler
  IB/isert: Fix dead lock in ib_isert
  IB/uverbs: Fix to consider event queue closing also upon non-blocking mode
  iavf: remove mask from iavf_irq_enable_queues()
  RDMA/rxe: Fix the use-before-initialization error of resp_pkts
  RDMA/rxe: Removed unused name from rxe_task struct
  RDMA/rxe: Remove the unused variable obj
  net/sched: cls_u32: Fix reference counter leak leading to overflow
  ping6: Fix send to link-local addresses with VRF.
  netfilter: nfnetlink: skip error delivery on batch in case of ENOMEM
  spi: fsl-dspi: avoid SCK glitches with continuous transfers
  spi: spi-fsl-dspi: Remove unused chip->void_write_data
  usb: dwc3: gadget: Reset num TRBs before giving back the request
  serial: lantiq: add missing interrupt ack
  USB: serial: option: add Quectel EM061KGL series
  Remove DECnet support from kernel
  ALSA: hda/realtek: Add a quirk for Compaq N14JP6
  net: usb: qmi_wwan: add support for Compal RXM-G1
  RDMA/uverbs: Restrict usage of privileged QKEYs
  nouveau: fix client work fence deletion race
  powerpc/purgatory: remove PGO flags
  kexec: support purgatories with .text.hot sections
  nilfs2: fix possible out-of-bounds segment allocation in resize ioctl
  nilfs2: fix incomplete buffer cleanup in nilfs_btnode_abort_change_key()
  nios2: dts: Fix tse_mac "max-frame-size" property
  ocfs2: check new file size on fallocate call
  ocfs2: fix use-after-free when unmounting read-only filesystem
  drm:amd:amdgpu: Fix missing buffer object unlock in failure path
  xen/blkfront: Only check REQ_FUA for writes
  mips: Move initrd_start check after initrd address sanitisation.
  MIPS: Alchemy: fix dbdma2
  parisc: Flush gatt writes and adjust gatt mask in parisc_agp_mask_memory()
  parisc: Improve cache flushing for PCXL in arch_sync_dma_for_cpu()
  btrfs: handle memory allocation failure in btrfs_csum_one_bio
  power: supply: Fix logic checking if system is running from battery
  irqchip/meson-gpio: Mark OF related data as maybe unused
  regulator: Fix error checking for debugfs_create_dir
  platform/x86: asus-wmi: Ignore WMI events with codes 0x7B, 0xC0
  power: supply: Ratelimit no data debug output
  ARM: dts: vexpress: add missing cache properties
  power: supply: bq27xxx: Use mod_delayed_work() instead of cancel() + schedule()
  power: supply: sc27xx: Fix external_power_changed race
  power: supply: ab8500: Fix external_power_changed race
  s390/dasd: Use correct lock while counting channel queue length
  dasd: refactor dasd_ioctl_information
  KEYS: asymmetric: Copy sig and digest in public_key_verify_signature()
  test_firmware: fix a memory leak with reqs buffer
  Revert "firmware: arm_sdei: Fix sleep from invalid context BUG"
  Revert "PM: domains: Fix up terminology with parent/child"
  Revert "PM: domains: Restore comment indentation for generic_pm_domain.child_links"
  Revert "scripts/gdb: bail early if there are no generic PD"
  Revert "uapi/linux/const.h: prefer ISO-friendly __typeof__"
  Revert "netfilter: nf_tables: don't write table validation state without mutex"
  Linux 5.4.247
  Revert "staging: rtl8192e: Replace macro RTL_PCI_DEVICE with PCI_DEVICE"
  mtd: spinand: macronix: Add support for MX35LFxGE4AD
  btrfs: unset reloc control if transaction commit fails in prepare_to_relocate()
  btrfs: check return value of btrfs_commit_transaction in relocation
  rbd: get snapshot context after exclusive lock is ensured to be held
  drm/atomic: Don't pollute crtc_state->mode_blob with error pointers
  cifs: handle empty list of targets in cifs_reconnect()
  cifs: get rid of unused parameter in reconn_setup_dfs_targets()
  ext4: only check dquot_initialize_needed() when debugging
  eeprom: at24: also select REGMAP
  i2c: sprd: Delete i2c adapter in .remove's error path
  bonding (gcc13): synchronize bond_{a,t}lb_xmit() types
  usb: usbfs: Use consistent mmap functions
  usb: usbfs: Enforce page requirements for mmap
  pinctrl: meson-axg: add missing GPIOA_18 gpio group
  rbd: move RBD_OBJ_FLAG_COPYUP_ENABLED flag setting
  Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk
  ceph: fix use-after-free bug for inodes when flushing capsnaps
  can: j1939: avoid possible use-after-free when j1939_can_rx_register fails
  can: j1939: change j1939_netdev_lock type to mutex
  can: j1939: j1939_sk_send_loop_abort(): improved error queue handling in J1939 Socket
  drm/amdgpu: fix xclk freq on CHIP_STONEY
  ALSA: hda/realtek: Add Lenovo P3 Tower platform
  ALSA: hda/realtek: Add a quirk for HP Slim Desktop S01
  Input: psmouse - fix OOB access in Elantech protocol
  Input: xpad - delete a Razer DeathAdder mouse VID/PID entry
  batman-adv: Broken sync while rescheduling delayed work
  bnxt_en: Query default VLAN before VNIC setup on a VF
  lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release()
  net: sched: fix possible refcount leak in tc_chain_tmplt_add()
  net: sched: move rtm_tca_policy declaration to include file
  rfs: annotate lockless accesses to RFS sock flow table
  rfs: annotate lockless accesses to sk->sk_rxhash
  netfilter: ipset: Add schedule point in call_ad().
  netfilter: conntrack: fix NULL pointer dereference in nf_confirm_cthelper
  Bluetooth: L2CAP: Add missing checks for invalid DCID
  Bluetooth: Fix l2cap_disconnect_req deadlock
  net: dsa: lan9303: allow vid != 0 in port_fdb_{add|del} methods
  neighbour: fix unaligned access to pneigh_entry
  neighbour: Replace zero-length array with flexible-array member
  spi: qup: Request DMA before enabling clocks
  i40e: fix build warnings in i40e_alloc.h
  i40iw: fix build warning in i40iw_manage_apbvt()
  block/blk-iocost (gcc13): keep large values in a new enum
  blk-iocost: avoid 64-bit division in ioc_timer_fn
  Linux 5.4.246
  drm/edid: fix objtool warning in drm_cvt_modes()
  wifi: rtlwifi: 8192de: correct checking of IQK reload
  drm/edid: Fix uninitialized variable in drm_cvt_modes()
  RDMA/bnxt_re: Remove the qp from list only if the qp destroy succeeds
  RDMA/bnxt_re: Remove set but not used variable 'dev_attr'
  scsi: dpt_i2o: Do not process completions with invalid addresses
  scsi: dpt_i2o: Remove broken pass-through ioctl (I2OUSERCMD)
  regmap: Account for register length when chunking
  test_firmware: fix the memory leak of the allocated firmware buffer
  fbcon: Fix null-ptr-deref in soft_cursor
  ext4: add lockdep annotations for i_data_sem for ea_inode's
  ext4: disallow ea_inodes with extended attributes
  ext4: set lockdep subclass for the ea_inode in ext4_xattr_inode_cache_find()
  ext4: add EA_INODE checking to ext4_iget()
  tracing/probe: trace_probe_primary_from_call(): checked list_first_entry
  selinux: don't use make's grouped targets feature yet
  tty: serial: fsl_lpuart: use UARTCTRL_TXINV to send break instead of UARTCTRL_SBK
  mmc: vub300: fix invalid response handling
  wifi: rtlwifi: remove always-true condition pointed out by GCC 12
  lib/dynamic_debug.c: use address-of operator on section symbols
  treewide: Remove uninitialized_var() usage
  kernel/extable.c: use address-of operator on section symbols
  eth: sun: cassini: remove dead code
  gcc-12: disable '-Wdangling-pointer' warning for now
  ACPI: thermal: drop an always true check
  x86/boot: Wrap literal addresses in absolute_pointer()
  flow_dissector: work around stack frame size warning
  ata: libata-scsi: Use correct device no in ata_find_dev()
  scsi: stex: Fix gcc 13 warnings
  misc: fastrpc: reject new invocations during device removal
  misc: fastrpc: return -EPIPE to invocations on device removal
  usb: gadget: f_fs: Add unbind event before functionfs_unbind
  net: usb: qmi_wwan: Set DTR quirk for BroadMobi BM818
  iio: dac: build ad5758 driver when AD5758 is selected
  iio: dac: mcp4725: Fix i2c_master_send() return value handling
  iio: light: vcnl4035: fixed chip ID check
  HID: wacom: avoid integer overflow in wacom_intuos_inout()
  HID: google: add jewel USB id
  iio: adc: mxs-lradc: fix the order of two cleanup operations
  mailbox: mailbox-test: fix a locking issue in mbox_test_message_write()
  atm: hide unused procfs functions
  ALSA: oss: avoid missing-prototype warnings
  netfilter: conntrack: define variables exp_nat_nla_policy and any_addr with CONFIG_NF_NAT
  wifi: b43: fix incorrect __packed annotation
  scsi: core: Decrease scsi_device's iorequest_cnt if dispatch failed
  arm64/mm: mark private VM_FAULT_X defines as vm_fault_t
  ARM: dts: stm32: add pin map for CAN controller on stm32f7
  wifi: rtl8xxxu: fix authentication timeout due to incorrect RCR value
  media: dvb-core: Fix use-after-free due to race condition at dvb_ca_en50221
  media: dvb-core: Fix kernel WARNING for blocking operation in wait_event*()
  media: dvb-core: Fix use-after-free due on race condition at dvb_net
  media: mn88443x: fix !CONFIG_OF error by drop of_match_ptr from ID table
  media: ttusb-dec: fix memory leak in ttusb_dec_exit_dvb()
  media: dvb_ca_en50221: fix a size write bug
  media: netup_unidvb: fix irq init by register it at the end of probe
  media: dvb-usb: dw2102: fix uninit-value in su3000_read_mac_address
  media: dvb-usb: digitv: fix null-ptr-deref in digitv_i2c_xfer()
  media: dvb-usb-v2: rtl28xxu: fix null-ptr-deref in rtl28xxu_i2c_xfer
  media: dvb-usb-v2: ce6230: fix null-ptr-deref in ce6230_i2c_master_xfer()
  media: dvb-usb-v2: ec168: fix null-ptr-deref in ec168_i2c_xfer()
  media: dvb-usb: az6027: fix three null-ptr-deref in az6027_i2c_xfer()
  media: dvb_demux: fix a bug for the continuity counter
  ASoC: ssm2602: Add workaround for playback distortions
  xfrm: Check if_id in inbound policy/secpath match
  ASoC: dwc: limit the number of overrun messages
  nbd: Fix debugfs_create_dir error checking
  fbdev: stifb: Fix info entry in sti_struct on error path
  fbdev: modedb: Add 1920x1080 at 60 Hz video mode
  media: rcar-vin: Select correct interrupt mode for V4L2_FIELD_ALTERNATE
  ARM: 9295/1: unwind:fix unwind abort for uleb128 case
  mailbox: mailbox-test: Fix potential double-free in mbox_test_message_write()
  watchdog: menz069_wdt: fix watchdog initialisation
  mtd: rawnand: marvell: don't set the NAND frequency select
  mtd: rawnand: marvell: ensure timing values are written
  net: dsa: mv88e6xxx: Increase wait after reset deactivation
  net/sched: flower: fix possible OOB write in fl_set_geneve_opt()
  udp6: Fix race condition in udp6_sendmsg & connect
  net/netlink: fix NETLINK_LIST_MEMBERSHIPS length report
  ocfs2/dlm: move BITS_TO_BYTES() to bitops.h for wider use
  net: sched: fix NULL pointer dereference in mq_attach
  net/sched: Prohibit regrafting ingress or clsact Qdiscs
  net/sched: Reserve TC_H_INGRESS (TC_H_CLSACT) for ingress (clsact) Qdiscs
  net/sched: sch_clsact: Only create under TC_H_CLSACT
  net/sched: sch_ingress: Only create under TC_H_INGRESS
  tcp: Return user_mss for TCP_MAXSEG in CLOSE/LISTEN state if user_mss set
  tcp: deny tcp_disconnect() when threads are waiting
  af_packet: do not use READ_ONCE() in packet_bind()
  mtd: rawnand: ingenic: fix empty stub helper definitions
  amd-xgbe: fix the false linkup in xgbe_phy_status
  af_packet: Fix data-races of pkt_sk(sk)->num.
  netrom: fix info-leak in nr_write_internal()
  net/mlx5: fw_tracer, Fix event handling
  dmaengine: pl330: rename _start to prevent build error
  iommu/amd: Don't block updates to GATag if guest mode is on
  iommu/rockchip: Fix unwind goto issue
  RDMA/bnxt_re: Fix return value of bnxt_re_process_raw_qp_pkt_rx
  RDMA/bnxt_re: Refactor queue pair creation code
  RDMA/bnxt_re: Enable SRIOV VF support on Broadcom's 57500 adapter series
  RDMA/efa: Fix unsupported page sizes in device
  Linux 5.4.245
  netfilter: ctnetlink: Support offloaded conntrack entry deletion
  ipv{4,6}/raw: fix output xfrm lookup wrt protocol
  binder: fix UAF caused by faulty buffer cleanup
  bluetooth: Add cmd validity checks at the start of hci_sock_ioctl()
  io_uring: have io_kill_timeout() honor the request references
  io_uring: don't drop completion lock before timer is fully initialized
  io_uring: always grab lock in io_cancel_async_work()
  cdc_ncm: Fix the build warning
  net/mlx5: Devcom, serialize devcom registration
  net/mlx5: devcom only supports 2 ports
  fs: fix undefined behavior in bit shift for SB_NOUSER
  power: supply: bq24190: Call power_supply_changed() after updating input current
  power: supply: core: Refactor power_supply_set_input_current_limit_from_supplier()
  power: supply: bq27xxx: After charger plug in/out wait 0.5s for things to stabilize
  net: cdc_ncm: Deal with too low values of dwNtbOutMaxSize
  cdc_ncm: Implement the 32-bit version of NCM Transfer Block
  Linux 5.4.244
  3c589_cs: Fix an error handling path in tc589_probe()
  net/mlx5: Devcom, fix error flow in mlx5_devcom_register_device
  net/mlx5: Fix error message when failing to allocate device memory
  forcedeth: Fix an error handling path in nv_probe()
  ASoC: Intel: Skylake: Fix declaration of enum skl_ch_cfg
  x86/show_trace_log_lvl: Ensure stack pointer is aligned, again
  xen/pvcalls-back: fix double frees with pvcalls_new_active_socket()
  coresight: Fix signedness bug in tmc_etr_buf_insert_barrier_packet()
  power: supply: sbs-charger: Fix INHIBITED bit for Status reg
  power: supply: bq27xxx: Fix poll_interval handling and races on remove
  power: supply: bq27xxx: Fix I2C IRQ race on remove
  power: supply: bq27xxx: Fix bq27xxx_battery_update() race condition
  power: supply: leds: Fix blink to LED on transition
  ipv6: Fix out-of-bounds access in ipv6_find_tlv()
  bpf: Fix mask generation for 32-bit narrow loads of 64-bit fields
  selftests: fib_tests: mute cleanup error message
  net: fix skb leak in __skb_tstamp_tx()
  media: radio-shark: Add endpoint checks
  USB: sisusbvga: Add endpoint checks
  USB: core: Add routines for endpoint checks in old drivers
  udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated().
  net: fix stack overflow when LRO is disabled for virtual interfaces
  fbdev: udlfb: Fix endpoint check
  debugobjects: Don't wake up kswapd from fill_pool()
  x86/topology: Fix erroneous smp_num_siblings on Intel Hybrid platforms
  parisc: Fix flush_dcache_page() for usage from irq context
  selftests/memfd: Fix unknown type name build failure
  x86/mm: Avoid incomplete Global INVLPG flushes
  btrfs: use nofs when cleaning up aborted transactions
  gpio: mockup: Fix mode of debugfs files
  parisc: Allow to reboot machine after system halt
  parisc: Handle kgdb breakpoints only in kernel context
  m68k: Move signal frame following exception on 68020/030
  ALSA: hda/realtek: Enable headset onLenovo M70/M90
  ALSA: hda/ca0132: add quirk for EVGA X299 DARK
  mt76: mt7615: Fix build with older compilers
  spi: fsl-cpm: Use 16 bit mode for large transfers with even size
  spi: fsl-spi: Re-organise transfer bits_per_word adaptation
  watchdog: sp5100_tco: Immediately trigger upon starting.
  s390/qdio: fix do_sqbs() inline assembly constraint
  s390/qdio: get rid of register asm
  vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF
  vc_screen: rewrite vcs_size to accept vc, not inode
  usb: gadget: u_ether: Fix host MAC address case
  usb: gadget: u_ether: Convert prints to device prints
  lib/string_helpers: Introduce string_upper() and string_lower() helpers
  HID: wacom: add three styli to wacom_intuos_get_tool_type
  HID: wacom: Add new Intuos Pro Small (PTH-460) device IDs
  HID: wacom: Force pen out of prox if no events have been received in a while
  netfilter: nf_tables: hold mutex on netns pre_exit path
  netfilter: nf_tables: validate NFTA_SET_ELEM_OBJREF based on NFT_SET_OBJECT flag
  netfilter: nf_tables: stricter validation of element data
  netfilter: nf_tables: allow up to 64 bytes in the set element data area
  netfilter: nf_tables: add nft_setelem_parse_key()
  netfilter: nf_tables: validate registers coming from userspace.
  netfilter: nftables: statify nft_parse_register()
  netfilter: nftables: add nft_parse_register_store() and use it
  netfilter: nftables: add nft_parse_register_load() and use it
  nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()
  powerpc/64s/radix: Fix soft dirty tracking
  tpm/tpm_tis: Disable interrupts for more Lenovo devices
  ceph: force updating the msg pointer in non-split case
  serial: Add support for Advantech PCI-1611U card
  statfs: enforce statfs[64] structure initialization
  KVM: x86: do not report a vCPU as preempted outside instruction boundaries
  can: kvaser_pciefd: Disable interrupts in probe error path
  can: kvaser_pciefd: Do not send EFLUSH command on TFD interrupt
  can: kvaser_pciefd: Clear listen-only bit if not explicitly requested
  can: kvaser_pciefd: Empty SRB buffer in probe
  can: kvaser_pciefd: Call request_irq() before enabling interrupts
  can: kvaser_pciefd: Set CAN_STATE_STOPPED in kvaser_pciefd_stop()
  can: j1939: recvmsg(): allow MSG_CMSG_COMPAT flag
  ALSA: hda/realtek: Add quirk for 2nd ASUS GU603
  ALSA: hda/realtek: Add a quirk for HP EliteDesk 805
  ALSA: hda: Add NVIDIA codec IDs a3 through a7 to patch table
  ALSA: hda: Fix Oops by 9.1 surround channel names
  usb: typec: altmodes/displayport: fix pin_assignment_show
  usb: dwc3: debugfs: Resume dwc3 before accessing registers
  USB: UHCI: adjust zhaoxin UHCI controllers OverCurrent bit value
  usb-storage: fix deadlock when a scsi command timeouts more than once
  USB: usbtmc: Fix direction for 0-length ioctl control messages
  vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit()
  igb: fix bit_shift to be in [1..8] range
  cassini: Fix a memory leak in the error handling path of cas_init_one()
  wifi: iwlwifi: mvm: don't trust firmware n_channels
  net: bcmgenet: Restore phy_stop() depending upon suspend/close
  net: bcmgenet: Remove phy_stop() from bcmgenet_netif_stop()
  net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment()
  drm/exynos: fix g2d_open/close helper function definitions
  media: netup_unidvb: fix use-after-free at del_timer()
  net: hns3: fix reset delay time to avoid configuration timeout
  net: hns3: fix sending pfc frames after reset issue
  erspan: get the proto with the md version for collect_md
  ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode
  ip6_gre: Make o_seqno start from 0 in native mode
  ip6_gre: Fix skb_under_panic in __gre6_xmit()
  serial: arc_uart: fix of_iomap leak in `arc_serial_probe`
  vsock: avoid to close connected socket after the timeout
  ALSA: firewire-digi00x: prevent potential use after free
  net: fec: Better handle pm_runtime_get() failing in .remove()
  af_key: Reject optional tunnel/BEET mode templates in outbound policies
  cpupower: Make TSC read per CPU for Mperf monitor
  ASoC: fsl_micfil: register platform component before registering cpu dai
  btrfs: fix space cache inconsistency after error loading it from disk
  btrfs: replace calls to btrfs_find_free_ino with btrfs_find_free_objectid
  mfd: dln2: Fix memory leak in dln2_probe()
  phy: st: miphy28lp: use _poll_timeout functions for waits
  Input: xpad - add constants for GIP interface numbers
  iommu/arm-smmu-v3: Acknowledge pri/event queue overflow if any
  clk: tegra20: fix gcc-7 constant overflow warning
  RDMA/core: Fix multiple -Warray-bounds warnings
  recordmcount: Fix memory leaks in the uwrite function
  sched: Fix KCSAN noinstr violation
  mcb-pci: Reallocate memory region to avoid memory overlapping
  serial: 8250: Reinit port->pm on port specific driver unbind
  usb: typec: tcpm: fix multiple times discover svids error
  HID: wacom: generic: Set battery quirk only when we see battery data
  spi: spi-imx: fix MX51_ECSPI_* macros when cs > 3
  HID: logitech-hidpp: Reconcile USB and Unifying serials
  HID: logitech-hidpp: Don't use the USB serial for USB devices
  staging: rtl8192e: Replace macro RTL_PCI_DEVICE with PCI_DEVICE
  Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
  wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace
  wifi: iwlwifi: pcie: Fix integer overflow in iwl_write_to_user_buf
  wifi: iwlwifi: pcie: fix possible NULL pointer dereference
  samples/bpf: Fix fout leak in hbm's run_bpf_prog
  f2fs: fix to drop all dirty pages during umount() if cp_error is set
  ext4: Fix best extent lstart adjustment logic in ext4_mb_new_inode_pa()
  ext4: set goal start correctly in ext4_mb_normalize_request
  gfs2: Fix inode height consistency check
  scsi: message: mptlan: Fix use after free bug in mptlan_remove() due to race condition
  lib: cpu_rmap: Avoid use after free on rmap->obj array entries
  scsi: target: iscsit: Free cmds before session free
  net: Catch invalid index in XPS mapping
  net: pasemi: Fix return type of pasemi_mac_start_tx()
  scsi: lpfc: Prevent lpfc_debugfs_lockstat_write() buffer overflow
  ext2: Check block size validity during mount
  wifi: brcmfmac: cfg80211: Pass the PMK in binary instead of hex
  ACPICA: ACPICA: check null return of ACPI_ALLOCATE_ZEROED in acpi_db_display_objects
  ACPICA: Avoid undefined behavior: applying zero offset to null pointer
  drm/tegra: Avoid potential 32-bit integer overflow
  ACPI: EC: Fix oops when removing custom query handlers
  firmware: arm_sdei: Fix sleep from invalid context BUG
  memstick: r592: Fix UAF bug in r592_remove due to race condition
  regmap: cache: Return error in cache sync operations for REGCACHE_NONE
  drm/amd/display: Use DC_LOG_DC in the trasform pixel function
  fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode()
  af_unix: Fix data races around sk->sk_shutdown.
  af_unix: Fix a data race of sk->sk_receive_queue->qlen.
  net: datagram: fix data-races in datagram_poll()
  ipvlan:Fix out-of-bounds caused by unclear skb->cb
  net: add vlan_get_protocol_and_depth() helper
  net: tap: check vlan with eth_type_vlan() method
  net: annotate sk->sk_err write from do_recvmmsg()
  netlink: annotate accesses to nlk->cb_running
  netfilter: conntrack: fix possible bug_on with enable_hooks=1
  net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs().
  linux/dim: Do nothing if no time delta between samples
  ARM: 9296/1: HP Jornada 7XX: fix kernel-doc warnings
  drm/mipi-dsi: Set the fwnode for mipi_dsi_device
  driver core: add a helper to setup both the of_node and fwnode of a device
  Linux 5.4.243
  drm/amd/display: Fix hang when skipping modeset
  mm/page_alloc: fix potential deadlock on zonelist_update_seq seqlock
  drm/exynos: move to use request_irq by IRQF_NO_AUTOEN flag
  drm/msm/adreno: Fix null ptr access in adreno_gpu_cleanup()
  firmware: raspberrypi: fix possible memory leak in rpi_firmware_probe()
  drm/msm: Fix double pm_runtime_disable() call
  PM: domains: Restore comment indentation for generic_pm_domain.child_links
  printk: declare printk_deferred_{enter,safe}() in include/linux/printk.h
  PCI: pciehp: Fix AB-BA deadlock between reset_lock and device_lock
  PCI: pciehp: Use down_read/write_nested(reset_lock) to fix lockdep errors
  drbd: correctly submit flush bio on barrier
  serial: 8250: Fix serial8250_tx_empty() race with DMA Tx
  tty: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH
  ext4: fix invalid free tracking in ext4_xattr_move_to_block()
  ext4: remove a BUG_ON in ext4_mb_release_group_pa()
  ext4: bail out of ext4_xattr_ibody_get() fails for any reason
  ext4: add bounds checking in get_max_inline_xattr_value_size()
  ext4: fix deadlock when converting an inline directory in nojournal mode
  ext4: improve error recovery code paths in __ext4_remount()
  ext4: fix data races when using cached status extents
  ext4: avoid a potential slab-out-of-bounds in ext4_group_desc_csum
  ext4: fix WARNING in mb_find_extent
  HID: wacom: insert timestamp to packed Bluetooth (BT) events
  HID: wacom: Set a default resolution for older tablets
  drm/amdgpu: disable sdma ecc irq only when sdma RAS is enabled in suspend
  drm/amdgpu/gfx: disable gfx9 cp_ecc_error_irq only when enabling legacy gfx ras
  drm/amdgpu: fix an amdgpu_irq_put() issue in gmc_v9_0_hw_fini()
  drm/panel: otm8009a: Set backlight parent to panel device
  f2fs: fix potential corruption when moving a directory
  ARM: dts: s5pv210: correct MIPI CSIS clock name
  ARM: dts: exynos: fix WM8960 clock name in Itop Elite
  remoteproc: st: Call of_node_put() on iteration error
  remoteproc: stm32: Call of_node_put() on iteration error
  sh: nmi_debug: fix return value of __setup handler
  sh: init: use OF_EARLY_FLATTREE for early init
  sh: math-emu: fix macro redefined warning
  inotify: Avoid reporting event with invalid wd
  platform/x86: touchscreen_dmi: Add info for the Dexp Ursus KX210i
  cifs: fix pcchunk length type in smb2_copychunk_range
  btrfs: print-tree: parent bytenr must be aligned to sector size
  btrfs: don't free qgroup space unless specified
  btrfs: fix btrfs_prev_leaf() to not return the same key twice
  perf symbols: Fix return incorrect build_id size in elf_read_build_id()
  perf map: Delete two variable initialisations before null pointer checks in sort__sym_from_cmp()
  perf vendor events power9: Remove UTF-8 characters from JSON files
  virtio_net: suppress cpu stall when free_unused_bufs
  virtio_net: split free_unused_bufs()
  net: dsa: mt7530: fix corrupt frames using trgmii on 40 MHz XTAL MT7621
  ALSA: caiaq: input: Add error handling for unsupported input methods in `snd_usb_caiaq_input_init`
  drm/amdgpu: add a missing lock for AMDGPU_SCHED
  af_packet: Don't send zero-byte data in packet_sendmsg_spkt().
  ionic: remove noise from ethtool rxnfc error msg
  rxrpc: Fix hard call timeout units
  net/sched: act_mirred: Add carrier check
  writeback: fix call of incorrect macro
  net: dsa: mv88e6xxx: add mv88e6321 rsvd2cpu
  sit: update dev->needed_headroom in ipip6_tunnel_bind_dev()
  net/sched: cls_api: remove block_cb from driver_list before freeing
  net/ncsi: clear Tx enable mode when handling a Config required AEN
  relayfs: fix out-of-bounds access in relay_file_read
  kernel/relay.c: fix read_pos error when multiple readers
  crypto: safexcel - Cleanup ring IRQ workqueues on load failure
  crypto: inside-secure - irq balance
  dm verity: fix error handling for check_at_most_once on FEC
  dm verity: skip redundant verity_handle_err() on I/O errors
  mailbox: zynqmp: Fix counts of child nodes
  mailbox: zynq: Switch to flexible array to simplify code
  tick/nohz: Fix cpu_is_hotpluggable() by checking with nohz subsystem
  nohz: Add TICK_DEP_BIT_RCU
  netfilter: nf_tables: deactivate anonymous set from preparation phase
  debugobject: Ensure pool refill (again)
  perf intel-pt: Fix CYC timestamps after standalone CBR
  perf auxtrace: Fix address filter entire kernel size
  dm ioctl: fix nested locking in table_clear() to remove deadlock concern
  dm flakey: fix a crash with invalid table line
  dm integrity: call kmem_cache_destroy() in dm_integrity_init() error path
  dm clone: call kmem_cache_destroy() in dm_clone_init() error path
  s390/dasd: fix hanging blockdevice after request requeue
  btrfs: scrub: reject unsupported scrub flags
  scripts/gdb: fix lx-timerlist for Python3
  clk: rockchip: rk3399: allow clk_cifout to force clk_cifout_src to reparent
  wifi: rtl8xxxu: RTL8192EU always needs full init
  mailbox: zynqmp: Fix typo in IPI documentation
  mailbox: zynqmp: Fix IPI isr handling
  md/raid10: fix null-ptr-deref in raid10_sync_request
  nilfs2: fix infinite loop in nilfs_mdt_get_block()
  nilfs2: do not write dirty data after degenerating to read-only
  parisc: Fix argument pointer in real64_call_asm()
  afs: Fix updating of i_size with dv jump from server
  dmaengine: at_xdmac: do not enable all cyclic channels
  dmaengine: dw-edma: Fix to enable to issue dma request on DMA processing
  dmaengine: dw-edma: Fix to change for continuous transfer
  phy: tegra: xusb: Add missing tegra_xusb_port_unregister for usb2_port and ulpi_port
  pwm: mtk-disp: Disable shadow registers before setting backlight values
  pwm: mtk-disp: Adjust the clocks to avoid them mismatch
  pwm: mtk-disp: Don't check the return code of pwmchip_remove()
  dmaengine: mv_xor_v2: Fix an error code.
  leds: TI_LMU_COMMON: select REGMAP instead of depending on it
  ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline
  openrisc: Properly store r31 to pt_regs on unhandled exceptions
  clocksource/drivers/davinci: Fix memory leak in davinci_timer_register when init fails
  clocksource: davinci: axe a pointless __GFP_NOFAIL
  clocksource/drivers/davinci: Avoid trailing '\n' hidden in pr_fmt()
  RDMA/mlx5: Use correct device num_ports when modify DC
  SUNRPC: remove the maximum number of retries in call_bind_status
  Input: raspberrypi-ts - fix refcount leak in rpi_ts_probe
  input: raspberrypi-ts: Release firmware handle when not needed
  firmware: raspberrypi: Introduce devm_rpi_firmware_get()
  firmware: raspberrypi: Keep count of all consumers
  NFSv4.1: Always send a RECLAIM_COMPLETE after establishing lease
  IB/hfi1: Fix SDMA mmu_rb_node not being evicted in LRU order
  RDMA/siw: Remove namespace check from siw_netdev_event()
  clk: add missing of_node_put() in "assigned-clocks" property parsing
  power: supply: generic-adc-battery: fix unit scaling
  rtc: meson-vrtc: Use ktime_get_real_ts64() to get the current time
  RDMA/mlx4: Prevent shift wrapping in set_user_sq_size()
  rtc: omap: include header for omap_rtc_power_off_program prototype
  RDMA/rdmavt: Delete unnecessary NULL check
  RDMA/siw: Fix potential page_array out of range access
  perf/core: Fix hardlockup failure caused by perf throttle
  powerpc/rtas: use memmove for potentially overlapping buffer copy
  macintosh: via-pmu-led: requires ATA to be set
  powerpc/sysdev/tsi108: fix resource printk format warnings
  powerpc/wii: fix resource printk format warnings
  powerpc/mpc512x: fix resource printk format warning
  macintosh/windfarm_smu_sat: Add missing of_node_put()
  spmi: Add a check for remove callback when removing a SPMI driver
  staging: rtl8192e: Fix W_DISABLE# does not work after stop/start
  serial: 8250: Add missing wakeup event reporting
  tty: serial: fsl_lpuart: adjust buffer length to the intended size
  firmware: stratix10-svc: Fix an NULL vs IS_ERR() bug in probe
  usb: mtu3: fix kernel panic at qmu transfer done irq handler
  usb: chipidea: fix missing goto in `ci_hdrc_probe`
  sh: sq: Fix incorrect element size for allocating bitmap buffer
  uapi/linux/const.h: prefer ISO-friendly __typeof__
  spi: cadence-quadspi: fix suspend-resume implementations
  mtd: spi-nor: cadence-quadspi: Handle probe deferral while requesting DMA channel
  mtd: spi-nor: cadence-quadspi: Don't initialize rx_dma_complete on failure
  mtd: spi-nor: cadence-quadspi: Provide a way to disable DAC mode
  mtd: spi-nor: cadence-quadspi: Make driver independent of flash geometry
  scripts/gdb: bail early if there are no generic PD
  PM: domains: Fix up terminology with parent/child
  scripts/gdb: bail early if there are no clocks
  ia64: salinfo: placate defined-but-not-used warning
  ia64: mm/contig: fix section mismatch warning/error
  of: Fix modalias string generation
  vmci_host: fix a race condition in vmci_host_poll() causing GPF
  spi: fsl-spi: Fix CPM/QE mode Litte Endian
  spi: qup: Don't skip cleanup in remove's error path
  linux/vt_buffer.h: allow either builtin or modular for macros
  ASoC: es8316: Handle optional IRQ assignment
  ASoC: es8316: Use IRQF_NO_AUTOEN when requesting the IRQ
  genirq: Add IRQF_NO_AUTOEN for request_irq/nmi()
  PCI: imx6: Install the fault handler only on compatible match
  usb: gadget: udc: renesas_usb3: Fix use after free bug in renesas_usb3_remove due to race condition
  iio: light: max44009: add missing OF device matching
  fpga: bridge: fix kernel-doc parameter description
  usb: host: xhci-rcar: remove leftover quirk handling
  pstore: Revert pmsg_lock back to a normal mutex
  tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp.
  net: amd: Fix link leak when verifying config failed
  netlink: Use copy_to_user() for optval in netlink_getsockopt().
  Revert "Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work"
  ipv4: Fix potential uninit variable access bug in __ip_make_skb()
  netfilter: nf_tables: don't write table validation state without mutex
  bpf: Don't EFAULT for getsockopt with optval=NULL
  ixgbe: Enable setting RSS table to default values
  ixgbe: Allow flow hash to be set via ethtool
  wifi: iwlwifi: mvm: check firmware response size
  wifi: iwlwifi: make the loop for card preparation effective
  md/raid10: fix memleak of md thread
  md: update the optimal I/O size on reshape
  md/raid10: fix memleak for 'conf->bio_split'
  md/raid10: fix leak of 'r10bio->remaining' for recovery
  bpf, sockmap: Revert buggy deadlock fix in the sockhash and sockmap
  nvme-fcloop: fix "inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage"
  nvme: fix async event trace event
  nvme: handle the persistent internal error AER
  bpf, sockmap: fix deadlocks in the sockhash and sockmap
  scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup()
  crypto: drbg - Only fail when jent is unavailable in FIPS mode
  crypto: drbg - make drbg_prepare_hrng() handle jent instantiation errors
  bpftool: Fix bug for long instructions in program CFG dumps
  wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write_reg()
  wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write_rfreg()
  rtlwifi: Replace RT_TRACE with rtl_dbg
  rtlwifi: Start changing RT_TRACE into rtl_dbg
  f2fs: handle dqget error in f2fs_transfer_project_quota()
  scsi: megaraid: Fix mega_cmd_done() CMDID_INT_CMDS
  scsi: target: iscsit: Fix TAS handling during conn cleanup
  net/packet: convert po->auxdata to an atomic flag
  net/packet: convert po->origdev to an atomic flag
  net/packet: annotate accesses to po->xmit
  vlan: partially enable SIOCSHWTSTAMP in container
  scm: fix MSG_CTRUNC setting condition for SO_PASSSEC
  wifi: rtw88: mac: Return the original error from rtw_mac_power_switch()
  wifi: rtw88: mac: Return the original error from rtw_pwr_seq_parser()
  tools: bpftool: Remove invalid \' json escape
  wifi: ath6kl: reduce WARN to dev_dbg() in callback
  wifi: ath5k: fix an off by one check in ath5k_eeprom_read_freq_list()
  wifi: ath9k: hif_usb: fix memory leak of remain_skbs
  wifi: ath6kl: minor fix for allocation size
  tick/common: Align tick period with the HZ tick.
  tick: Get rid of tick_period
  tick/sched: Optimize tick_do_update_jiffies64() further
  tick/sched: Reduce seqcount held scope in tick_do_update_jiffies64()
  tick/sched: Use tick_next_period for lockless quick check
  timekeeping: Split jiffies seqlock
  debugobject: Prevent init race with static objects
  arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step
  x86/ioapic: Don't return 0 from arch_dynirq_lower_bound()
  regulator: stm32-pwr: fix of_iomap leak
  media: rc: gpio-ir-recv: Fix support for wake-up
  media: rcar_fdp1: Fix refcount leak in probe and remove function
  media: rcar_fdp1: Fix the correct variable assignments
  media: rcar_fdp1: Make use of the helper function devm_platform_ioremap_resource()
  media: rcar_fdp1: fix pm_runtime_get_sync() usage count
  media: rcar_fdp1: simplify error check logic at fdp_open()
  media: saa7134: fix use after free bug in saa7134_finidev due to race condition
  media: dm1105: Fix use after free bug in dm1105_remove due to race condition
  x86/apic: Fix atomic update of offset in reserve_eilvt_offset()
  regulator: core: Avoid lockdep reports when resolving supplies
  regulator: core: Consistently set mutex_owner when using ww_mutex_lock_slow()
  drm/lima/lima_drv: Add missing unwind goto in lima_pdev_probe()
  mmc: sdhci-of-esdhc: fix quirk to ignore command inhibit for data
  drm/msm/adreno: drop bogus pm_runtime_set_active()
  drm/msm/adreno: Defer enabling runpm until hw_init()
  drm/msm: fix unbalanced pm_runtime_enable in adreno_gpu_{init, cleanup}
  firmware: qcom_scm: Clear download bit during reboot
  media: av7110: prevent underflow in write_ts_to_decoder()
  media: uapi: add MEDIA_BUS_FMT_METADATA_FIXED media bus format.
  media: bdisp: Add missing check for create_workqueue
  ARM: dts: qcom: ipq8064: Fix the PCI I/O port range
  ARM: dts: qcom: ipq8064: reduce pci IO size to 64K
  ARM: dts: qcom: ipq4019: Fix the PCI I/O port range
  EDAC/skx: Fix overflows on the DRAM row address mapping arrays
  arm64: dts: renesas: r8a774c0: Remove bogus voltages from OPP table
  arm64: dts: renesas: r8a77990: Remove bogus voltages from OPP table
  drm/probe-helper: Cancel previous job before starting new one
  drm/vgem: add missing mutex_destroy
  drm/rockchip: Drop unbalanced obj unref
  erofs: fix potential overflow calculating xattr_isize
  erofs: stop parsing non-compact HEAD index if clusterofs is invalid
  tpm, tpm_tis: Do not skip reset of original interrupt vector
  selinux: ensure av_permissions.h is built when needed
  selinux: fix Makefile dependencies of flask.h
  ubifs: Free memory for tmpfile name
  ubi: Fix return value overwrite issue in try_write_vid_and_data()
  ubifs: Fix memleak when insert_old_idx() failed
  Revert "ubifs: dirty_cow_znode: Fix memleak in error handling path"
  i2c: omap: Fix standard mode false ACK readings
  KVM: nVMX: Emulate NOPs in L2, and PAUSE if it's not intercepted
  reiserfs: Add security prefix to xattr name in reiserfs_security_write()
  ring-buffer: Sync IRQ works before buffer destruction
  pwm: meson: Fix g12a ao clk81 name
  pwm: meson: Fix axg ao mux parents
  kheaders: Use array declaration instead of char
  ipmi: fix SSIF not responding under certain cond.
  ipmi:ssif: Add send_retries increment
  MIPS: fw: Allow firmware to pass a empty env
  xhci: fix debugfs register accesses while suspended
  debugfs: regset32: Add Runtime PM support
  staging: iio: resolver: ads1210: fix config mode
  perf sched: Cast PTHREAD_STACK_MIN to int as it may turn into sysconf(__SC_THREAD_STACK_MIN_VALUE)
  USB: dwc3: fix runtime pm imbalance on unbind
  USB: dwc3: fix runtime pm imbalance on probe errors
  asm-generic/io.h: suppress endianness warnings for readq() and writeq()
  ASoC: Intel: bytcr_rt5640: Add quirk for the Acer Iconia One 7 B1-750
  iio: adc: palmas_gpadc: fix NULL dereference on rmmod
  USB: serial: option: add UNISOC vendor and TOZED LT70C product
  bluetooth: Perform careful capability checks in hci_sock_ioctl()
  drm/fb-helper: set x/yres_virtual in drm_fb_helper_check_var
  wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()
  counter: 104-quad-8: Fix race condition between FLAG and CNTR reads

 Conflicts:
	drivers/firmware/qcom_scm.c
	drivers/md/dm-verity-target.c
	drivers/usb/dwc3/core.c
	drivers/usb/dwc3/debugfs.c
	drivers/usb/gadget/function/f_fs.c

Change-Id: Iedad1fcca99a9b739e08ea6d60988800b3a7aefa
 2023-08-31 18:20:41 +03:00
Stephen Hemminger
6b1203ae83 Remove DECnet support from kernel 
commit 1202cdd665315c525b5237e96e0bedc76d7e754f upstream.

DECnet is an obsolete network protocol that receives more attention
from kernel janitors than users. It belongs in computer protocol
history museum not in Linux kernel.

It has been "Orphaned" in kernel since 2010. The iproute2 support
for DECnet was dropped in 5.0 release. The documentation link on
Sourceforge says it is abandoned there as well.

Leave the UAPI alone to keep userspace programs compiling.
This means that there is still an empty neighbour table
for AF_DECNET.

The table of /proc/sys/net entries was updated to match
current directories and reformatted to be alphabetical.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: David Ahern <dsahern@kernel.org>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2023-06-21 15:44:10 +02:00
Chris Lew
6493564fe3 net: Add Neuron Framework 
Neuron is a device-sharing framework which is used by guests of the
haven hypervisor to serve or access shared I/O devices and other
inter-VM services.

There are three main layers that make up a neuron service.
channel - the physical layer transport that uses the hypervisor
          provided transports.

protocol - defines the syntax and semantics to virtualize a specific
           device across VMs. Block and Net are examples of protocols.

application - integrates the neuron service components into the rest of
              the system. There would be front and back end application
              drivers for the net protocol.

Change-Id: Ic7278fdaee1cd30147e91e1126643bce79c05e52
Signed-off-by: Chris Lew <clew@codeaurora.org>
 2020-03-30 21:44:24 -07:00
Jens Axboe
f4e65870e5 net: split out functions related to registering inflight socket files 
We need this functionality for the io_uring file registration, but
we cannot rely on it since CONFIG_UNIX can be modular. Move the helpers
to a separate file, that's always builtin to the kernel if CONFIG_UNIX is
m/y.

No functional changes in this patch, just moving code around.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-02-28 08:24:23 -07:00
Masahiro Yamada
88e85a7daf bpfilter: check compiler capability in Kconfig 
With the brand-new syntax extension of Kconfig, we can directly
check the compiler capability in the configuration phase.

If the cc-can-link.sh fails, the BPFILTER_UMH is automatically
hidden by the dependency.

I also deleted 'default n', which is no-op.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-06-28 13:36:39 +09:00
Alexei Starovoitov
819dd92b9c bpfilter: switch to CC from HOSTCC 
check that CC can build executables and use that compiler instead of HOSTCC

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-06-05 10:21:18 -04:00
Alexei Starovoitov
d2ba09c17a net: add skeleton of bpfilter kernel module 
bpfilter.ko consists of bpfilter_kern.c (normal kernel module code)
and user mode helper code that is embedded into bpfilter.ko

The steps to build bpfilter.ko are the following:
- main.c is compiled by HOSTCC into the bpfilter_umh elf executable file
- with quite a bit of objcopy and Makefile magic the bpfilter_umh elf file
  is converted into bpfilter_umh.o object file
  with _binary_net_bpfilter_bpfilter_umh_start and _end symbols
  Example:
  $ nm ./bld_x64/net/bpfilter/bpfilter_umh.o
  0000000000004cf8 T _binary_net_bpfilter_bpfilter_umh_end
  0000000000004cf8 A _binary_net_bpfilter_bpfilter_umh_size
  0000000000000000 T _binary_net_bpfilter_bpfilter_umh_start
- bpfilter_umh.o and bpfilter_kern.o are linked together into bpfilter.ko

bpfilter_kern.c is a normal kernel module code that calls
the fork_usermode_blob() helper to execute part of its own data
as a user mode process.

Notice that _binary_net_bpfilter_bpfilter_umh_start - end
is placed into .init.rodata section, so it's freed as soon as __init
function of bpfilter.ko is finished.
As part of __init the bpfilter.ko does first request/reply action
via two unix pipe provided by fork_usermode_blob() helper to
make sure that umh is healthy. If not it will kill it via pid.

Later bpfilter_process_sockopt() will be called from bpfilter hooks
in get/setsockopt() to pass iptable commands into umh via bpfilter.ko

If admin does 'rmmod bpfilter' the __exit code bpfilter.ko will
kill umh as well.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-05-23 13:23:40 -04:00
Björn Töpel
c0c77d8fb7 xsk: add user memory registration support sockopt 
In this commit the base structure of the AF_XDP address family is set
up. Further, we introduce the abilty register a window of user memory
to the kernel via the XDP_UMEM_REG setsockopt syscall. The memory
window is viewed by an AF_XDP socket as a set of equally large
frames. After a user memory registration all frames are "owned" by the
user application, and not the kernel.

v2: More robust checks on umem creation and unaccount on error.
    Call set_page_dirty_lock on cleanup.
    Simplified xdp_umem_reg.

Co-authored-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2018-05-03 15:55:23 -07:00
Stephen Hemminger
e02554e9a4 ipx: move Novell IPX protocol support into staging 
The Netware IPX protocol is very old and no one should still be using
it. It is time to move it into staging for a while and eventually
decommision it.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-11-28 13:55:00 +01:00
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-11-02 11:10:55 +01:00
Jiri Benc
c411ed8545 nsh: add GSO support 
Add a new nsh/ directory. It currently holds only GSO functions but more
will come: in particular, code shared by openvswitch and tc to manipulate
NSH headers.

For now, assume there's no hardware support for NSH segmentation. We can
always introduce netdev->nsh_features later.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-29 15:16:52 -07:00
Greg Kroah-Hartman
1ca163afb6 irda: move net/irda/ to drivers/staging/irda/net/ 
It's time to get rid of IRDA.  It's long been broken, and no one seems
to use it anymore.  So move it to staging and after a while, we can
delete it from there.

To start, move the network irda core from net/irda to
drivers/staging/irda/net/

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-28 16:42:56 -07:00
Dave Watson
3c4d755915 tls: kernel TLS support 
Software implementation of transport layer security, implemented using ULP
infrastructure.  tcp proto_ops are replaced with tls equivalents of sendmsg and
sendpage.

Only symmetric crypto is done in the kernel, keys are passed by setsockopt
after the handshake is complete.  All control messages are supported via CMSG
data - the actual symmetric encryption is the same, just the message type needs
to be passed separately.

For user API, please see Documentation patch.

Pieces that can be shared between hw and sw implementation
are in tls_main.c

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-06-15 12:12:40 -04:00
Alexei Starovoitov
1cf1cae963 bpf: introduce BPF_PROG_TEST_RUN command 
development and testing of networking bpf programs is quite cumbersome.
Despite availability of user space bpf interpreters the kernel is
the ultimate authority and execution environment.
Current test frameworks for TC include creation of netns, veth,
qdiscs and use of various packet generators just to test functionality
of a bpf program. XDP testing is even more complicated, since
qemu needs to be started with gro/gso disabled and precise queue
configuration, transferring of xdp program from host into guest,
attaching to virtio/eth0 and generating traffic from the host
while capturing the results from the guest.

Moreover analyzing performance bottlenecks in XDP program is
impossible in virtio environment, since cost of running the program
is tiny comparing to the overhead of virtio packet processing,
so performance testing can only be done on physical nic
with another server generating traffic.

Furthermore ongoing changes to user space control plane of production
applications cannot be run on the test servers leaving bpf programs
stubbed out for testing.

Last but not least, the upstream llvm changes are validated by the bpf
backend testsuite which has no ability to test the code generated.

To improve this situation introduce BPF_PROG_TEST_RUN command
to test and performance benchmark bpf programs.

Joint work with Daniel Borkmann.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-04-01 12:45:57 -07:00
Yotam Gigi
1ce8460496 net: Introduce ife encapsulation module 
This module is responsible for the ife encapsulation protocol
encode/decode logics. That module can:
 - ife_encode: encode skb and reserve space for the ife meta header
 - ife_decode: decode skb and extract the meta header size
 - ife_tlv_meta_encode - encodes one tlv entry into the reserved ife
   header space.
 - ife_tlv_meta_decode - decodes one tlv entry from the packet
 - ife_tlv_meta_next - advance to the next tlv

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-02-03 15:16:45 -05:00
Yotam Gigi
6ae0a62861 net: Introduce psample, a new genetlink channel for packet sampling 
Add a general way for kernel modules to sample packets, without being tied
to any specific subsystem. This netlink channel can be used by tc,
iptables, etc. and allow to standardize packet sampling in the kernel.

For every sampled packet, the psample module adds the following metadata
fields:

PSAMPLE_ATTR_IIFINDEX - the packets input ifindex, if applicable

PSAMPLE_ATTR_OIFINDEX - the packet output ifindex, if applicable

PSAMPLE_ATTR_ORIGSIZE - the packet's original size, in case it has been
   truncated during sampling

PSAMPLE_ATTR_SAMPLE_GROUP - the packet's sample group, which is set by the
   user who initiated the sampling. This field allows the user to
   differentiate between several samplers working simultaneously and
   filter packets relevant to him

PSAMPLE_ATTR_GROUP_SEQ - sequence counter of last sent packet. The
   sequence is kept for each group

PSAMPLE_ATTR_SAMPLE_RATE - the sampling rate used for sampling the packets

PSAMPLE_ATTR_DATA - the actual packet bits

The sampled packets are sent to the PSAMPLE_NL_MCGRP_SAMPLE multicast
group. In addition, add the GET_GROUPS netlink command which allows the
user to see the current sample groups, their refcount and sequence number.
This command currently supports only netlink dump mode.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-01-24 13:44:28 -05:00
Ursula Braun
ac7138746e smc: establish new socket family 
* enable smc module loading and unloading
 * register new socket family
 * basic smc socket creation and deletion
 * use backing TCP socket to run CLC (Connection Layer Control)
   handshake of SMC protocol
 * Setup for infiniband traffic is implemented in follow-on patches.
   For now fallback to TCP socket is always used.

Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Utz Bacher <utz.bacher@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-01-09 16:07:38 -05:00
Tom Herbert
43a0c6751a strparser: Stream parser for messages 
This patch introduces a utility for parsing application layer protocol
messages in a TCP stream. This is a generalization of the mechanism
implemented of Kernel Connection Multiplexor.

The API includes a context structure, a set of callbacks, utility
functions, and a data ready function.

A stream parser instance is defined by a strparse structure that
is bound to a TCP socket. The function to initialize the structure
is:

int strp_init(struct strparser *strp, struct sock *csk,
              struct strp_callbacks *cb);

csk is the TCP socket being bound to and cb are the parser callbacks.

The upper layer calls strp_tcp_data_ready when data is ready on the lower
socket for strparser to process. This should be called from a data_ready
callback that is set on the socket:

void strp_tcp_data_ready(struct strparser *strp);

A parser is bound to a TCP socket by setting data_ready function to
strp_tcp_data_ready so that all receive indications on the socket
go through the parser. This is assumes that sk_user_data is set to
the strparser structure.

There are four callbacks.
 - parse_msg is called to parse the message (returns length or error).
 - rcv_msg is called when a complete message has been received
 - read_sock_done is called when data_ready function exits
 - abort_parser is called to abort the parser

The input to parse_msg is an skbuff which contains next message under
construction. The backend processing of parse_msg will parse the
application layer protocol headers to determine the length of
the message in the stream. The possible return values are:

   >0 : indicates length of successfully parsed message
   0  : indicates more data must be received to parse the message
   -ESTRPIPE : current message should not be processed by the
      kernel, return control of the socket to userspace which
      can proceed to read the messages itself
   other < 0 : Error is parsing, give control back to userspace
      assuming that synchronzation is lost and the stream
      is unrecoverable (application expected to close TCP socket)

In the case of error return (< 0) strparse will stop the parser
and report and error to userspace. The application must deal
with the error. To handle the error the strparser is unbound
from the TCP socket. If the error indicates that the stream
TCP socket is at recoverable point (ESTRPIPE) then the application
can read the TCP socket to process the stream. Once the application
has dealt with the exceptions in the stream, it may again bind the
socket to a strparser to continue data operations.

Note that ENODATA may be returned to the application. In this case
parse_msg returned -ESTRPIPE, however strparser was unable to maintain
synchronization of the stream (i.e. some of the message in question
was already read by the parser).

strp_pause and strp_unpause are used to provide flow control. For
instance, if rcv_msg is called but the upper layer can't immediately
consume the message it can hold the message and pause strparser.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-08-17 19:36:23 -04:00
Gavin Shan
2d283bdd07 net/ncsi: Resource management 
NCSI spec (DSP0222) defines several objects: package, channel, mode,
filter, version and statistics etc. This introduces the data structs
to represent those objects and implement functions to manage them.
Also, this introduces CONFIG_NET_NCSI for the newly implemented NCSI
stack.

   * The user (e.g. netdev driver) dereference NCSI device by
     "struct ncsi_dev", which is embedded to "struct ncsi_dev_priv".
     The later one is used by NCSI stack internally.
   * Every NCSI device can have multiple packages simultaneously, up
     to 8 packages. It's represented by "struct ncsi_package" and
     identified by 3-bits ID.
   * Every NCSI package can have multiple channels, up to 32. It's
     represented by "struct ncsi_channel" and identified by 5-bits ID.
   * Every NCSI channel has version, statistics, various modes and
     filters. They are represented by "struct ncsi_channel_version",
     "struct ncsi_channel_stats", "struct ncsi_channel_mode" and
     "struct ncsi_channel_filter" separately.
   * Apart from AEN (Asynchronous Event Notification), the NCSI stack
     works in terms of command and response. This introduces "struct
     ncsi_req" to represent a complete NCSI transaction made of NCSI
     request and response.

link: https://www.dmtf.org/sites/default/files/standards/documents/DSP0222_1.1.0.pdf
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-07-19 20:49:16 -07:00
Courtney Cavin
bdabad3e36 net: Add Qualcomm IPC router 
Add an implementation of Qualcomm's IPC router protocol, used to
communicate with service providing remote processors.

Signed-off-by: Courtney Cavin <courtney.cavin@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
[bjorn: Cope with 0 being a valid node id and implement RTM_NEWADDR]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-05-08 23:46:14 -04:00
Tom Herbert
ab7ac4eb98 kcm: Kernel Connection Multiplexor module 
This module implements the Kernel Connection Multiplexor.

Kernel Connection Multiplexor (KCM) is a facility that provides a
message based interface over TCP for generic application protocols.
With KCM an application can efficiently send and receive application
protocol messages over TCP using datagram sockets.

For more information see the included Documentation/networking/kcm.txt

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-03-09 16:36:14 -05:00
David Ahern
1b69c6d0ae net: Introduce L3 Master device abstraction 
L3 master devices allow users of the abstraction to influence FIB lookups
for enslaved devices. Current API provides a means for the master device
to return a specific FIB table for an enslaved device, to return an
rtable/custom dst and influence the OIF used for fib lookups.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2015-09-29 20:40:32 -07:00
Eric W. Biederman
cec9166ca4 mpls: Refactor how the mpls module is built 
This refactoring is needed to allow more than just mpls gso
support to be built into the mpls moddule.

Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2015-03-04 00:26:06 -05:00
Linus Torvalds
603ba7e41b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull vfs pile #2 from Al Viro:
 "Next pile (and there'll be one or two more).

  The large piece in this one is getting rid of /proc/*/ns/* weirdness;
  among other things, it allows to (finally) make nameidata completely
  opaque outside of fs/namei.c, making for easier further cleanups in
  there"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  coda_venus_readdir(): use file_inode()
  fs/namei.c: fold link_path_walk() call into path_init()
  path_init(): don't bother with LOOKUP_PARENT in argument
  fs/namei.c: new helper (path_cleanup())
  path_init(): store the "base" pointer to file in nameidata itself
  make default ->i_fop have ->open() fail with ENXIO
  make nameidata completely opaque outside of fs/namei.c
  kill proc_ns completely
  take the targets of /proc/*/ns/* symlinks to separate fs
  bury struct proc_ns in fs/proc
  copy address of proc_ns_ops into ns_common
  new helpers: ns_alloc_inum/ns_free_inum
  make proc_ns_operations work with struct ns_common * instead of void *
  switch the rest of proc_ns_operations to working with &...->ns
  netns: switch ->get()/->put()/->install()/->inum() to working with &net->ns
  make mntns ->get()/->put()/->install()/->inum() work with &mnt_ns->ns
  common object embedded into various struct ....ns
 2014-12-16 15:53:03 -08:00
Al Viro
bd9b51e79c make default ->i_fop have ->open() fail with ENXIO 
As it is, default ->i_fop has NULL ->open() (along with all other methods).
The only case where it matters is reopening (via procfs symlink) a file that
didn't get its ->f_op from ->i_fop - anything else will have ->i_fop assigned
to something sane (default would fail on read/write/ioctl/etc.).

	Unfortunately, such case exists - alloc_file() users, especially
anon_get_file() ones.  There we have tons of opened files of very different
kinds sharing the same inode.  As the result, attempt to reopen those via
procfs succeeds and you get a descriptor you can't do anything with.

	Moreover, in case of sockets we set ->i_fop that will only be used
on such reopen attempts - and put a failing ->open() into it to make sure
those do not succeed.

	It would be simpler to put such ->open() into default ->i_fop and leave
it unchanged both for anon inode (as we do anyway) and for socket ones.  Result:
	* everything going through do_dentry_open() works as it used to
	* sock_no_open() kludge is gone
	* attempts to reopen anon-inode files fail as they really ought to
	* ditto for aio_private_file()
	* ditto for perfmon - this one actually tried to imitate sock_no_open()
trick, but failed to set ->i_fop, so in the current tree reopens succeed and
yield completely useless descriptor.  Intent clearly had been to fail with
-ENXIO on such reopens; now it actually does.
	* everything else that used alloc_file() keeps working - it has ->i_fop
set for its inodes anyway

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2014-12-10 21:32:15 -05:00
Jiri Pirko
007f790c82 net: introduce generic switch devices support 
The goal of this is to provide a possibility to support various switch
chips. Drivers should implement relevant ndos to do so. Now there is
only one ndo defined:
- for getting physical switch id is in place.

Note that user can use random port netdevice to access the switch.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Reviewed-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2014-12-02 20:01:20 -08:00
Alexander Aring
2c6bed7cfc 6lowpan: introduce new net/6lowpan directory 
This patch moves generic code which is used by bluetooth and ieee802154
6lowpan to a new net/6lowpan directory. This directory contains generic
6LoWPAN code which is shared between bluetooth and ieee802154 MAC-Layer.

This is the IPHC - "IPv6 Header Compression" format at the moment. Which
is described by RFC 6282 [0]. The BLTE 6LoWPAN draft describes that the
IPHC is the same format like IEEE 802.15.4, see [1].

Futuremore we can put more code into this directory which is shared
between BLTE and IEEE 802.15.4 6LoWPAN like RFC 6775 or the routing
protocol RPL RFC 6550.

To avoid naming conflicts I renamed 6lowpan-y to ieee802154_6lowpan-y
in net/ieee802154/Makefile.

[0] http://tools.ietf.org/html/rfc6282
[1] http://tools.ietf.org/html/draft-ietf-6lowpan-btle-12#section-3.2
[2] http://tools.ietf.org/html/rfc6775
[3] http://tools.ietf.org/html/rfc6550

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
 2014-07-12 01:53:30 +02:00
Dmitry Eremin-Solenikov
a53d34c346 net: move 6lowpan compression code to separate module 
IEEE 802.15.4 and Bluetooth networking stacks share 6lowpan compression
code. Instead of introducing Makefile/Kconfig hacks, build this code as
a separate module referenced from both ieee802154 and bluetooth modules.

This fixes the following build error observed in some kernel
configurations:

net/built-in.o: In function `header_create': 6lowpan.c:(.text+0x166149): undefined reference to `lowpan_header_compress'
net/built-in.o: In function `bt_6lowpan_recv': (.text+0x166b3c): undefined reference to `lowpan_process_data'

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2014-01-15 15:36:38 -08:00
Arvid Brodin
f421436a59 net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0) 
High-availability Seamless Redundancy ("HSR") provides instant failover
redundancy for Ethernet networks. It requires a special network topology where
all nodes are connected in a ring (each node having two physical network
interfaces). It is suited for applications that demand high availability and
very short reaction time.

HSR acts on the Ethernet layer, using a registered Ethernet protocol type to
send special HSR frames in both directions over the ring. The driver creates
virtual network interfaces that can be used just like any ordinary Linux
network interface, for IP/TCP/UDP traffic etc. All nodes in the network ring
must be HSR capable.

This code is a "best effort" to comply with the HSR standard as described in
IEC 62439-3:2010 (HSRv0).

Signed-off-by: Arvid Brodin <arvid.brodin@xdin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2013-11-03 23:20:14 -05:00
Simon Horman
0d89d2035f MPLS: Add limited GSO support 
In the case where a non-MPLS packet is received and an MPLS stack is
added it may well be the case that the original skb is GSO but the
NIC used for transmit does not support GSO of MPLS packets.

The aim of this code is to provide GSO in software for MPLS packets
whose skbs are GSO.

SKB Usage:

When an implementation adds an MPLS stack to a non-MPLS packet it should do
the following to skb metadata:

* Set skb->inner_protocol to the old non-MPLS ethertype of the packet.
  skb->inner_protocol is added by this patch.

* Set skb->protocol to the new MPLS ethertype of the packet.

* Set skb->network_header to correspond to the
  end of the L3 header, including the MPLS label stack.

I have posted a patch, "[PATCH v3.29] datapath: Add basic MPLS support to
kernel" which adds MPLS support to the kernel datapath of Open vSwtich.
That patch sets the above requirements in datapath/actions.c:push_mpls()
and was used to exercise this code.  The datapath patch is against the Open
vSwtich tree but it is intended that it be added to the Open vSwtich code
present in the mainline Linux kernel at some point.

Features:

I believe that the approach that I have taken is at least partially
consistent with the handling of other protocols.  Jesse, I understand that
you have some ideas here.  I am more than happy to change my implementation.

This patch adds dev->mpls_features which may be used by devices
to advertise features supported for MPLS packets.

A new NETIF_F_MPLS_GSO feature is added for devices which support
hardware MPLS GSO offload.  Currently no devices support this
and MPLS GSO always falls back to software.

Alternate Implementation:

One possible alternate implementation is to teach netif_skb_features()
and skb_network_protocol() about MPLS, in a similar way to their
understanding of VLANs. I believe this would avoid the need
for net/mpls/mpls_gso.c and in particular the calls to
__skb_push() and __skb_push() in mpls_gso_segment().

I have decided on the implementation in this patch as it should
not introduce any overhead in the case where mpls_gso is not compiled
into the kernel or inserted as a module.

MPLS GSO suggested by Jesse Gross.
Based in part on "v4 GRE: Add TCP segmentation offload for GRE"
by Pravin B Shelar.

Cc: Jesse Gross <jesse@nicira.com>
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2013-05-27 22:50:59 -07:00
Andy King
d021c34405 VSOCK: Introduce VM Sockets 
VM Sockets allows communication between virtual machines and the hypervisor.
User level applications both in a virtual machine and on the host can use the
VM Sockets API, which facilitates fast and efficient communication between
guest virtual machines and their host.  A socket address family, designed to be
compatible with UDP and TCP at the interface level, is provided.

Today, VM Sockets is used by various VMware Tools components inside the guest
for zero-config, network-less access to VMware host services.  In addition to
this, VMware's users are using VM Sockets for various applications, where
network access of the virtual machine is restricted or non-existent.  Examples
of this are VMs communicating with device proxies for proprietary hardware
running as host applications and automated testing of applications running
within virtual machines.

The VMware VM Sockets are similar to other socket types, like Berkeley UNIX
socket interface.  The VM Sockets module supports both connection-oriented
stream sockets like TCP, and connectionless datagram sockets like UDP. The VM
Sockets protocol family is defined as "AF_VSOCK" and the socket operations
split for SOCK_DGRAM and SOCK_STREAM.

For additional information about the use of VM Sockets, please refer to the
VM Sockets Programming Guide available at:

https://www.vmware.com/support/developer/vmci-sdk/

Signed-off-by: George Zhang <georgezhang@vmware.com>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Andy king <acking@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2013-02-10 19:41:08 -05:00
Paul Gortmaker
a786a7c0ad wanrouter: completely decouple obsolete code from kernel. 
The original suggestion to delete wanrouter started earlier
with the mainline commit f0d1b3c2bc
("net/wanrouter: Deprecate and schedule for removal") in May 2012.

More importantly, Dan Carpenter found[1] that the driver had a
fundamental breakage introduced back in 2008, with commit
7be6065b39 ("netdevice wanrouter: Convert directly reference of
netdev->priv").  So we know with certainty that the code hasn't been
used by anyone willing to at least take the effort to send an e-mail
report of breakage for at least 4 years.

This commit does a decouple of the wanrouter subsystem, by going
after the Makefile/Kconfig and similar files, so that these mainline
files that we are keeping do not have the big wanrouter file/driver
deletion commit tied into their history.

Once this commit is in place, we then can remove the obsolete cyclomx
drivers and similar that have a dependency on CONFIG_WAN_ROUTER_DRIVERS.

[1] http://www.spinics.net/lists/netdev/msg218670.html

Originally-by: Joe Perches <joe@perches.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
 2013-01-31 19:20:33 -05:00
Stephen Hemminger
349f29d841 econet: remove ancient bug ridden protocol 
More spring cleaning!

The ancient Econet protocol should go. Most of the bug fixes in recent
years have been fixing security vulnerabilities. The hardware hasn't
been made since the 90s, it is only interesting as an archeological curiosity.

For the truly curious, or insomniac, go read up on it.
  http://en.wikipedia.org/wiki/Econet

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2012-05-18 01:35:08 -04:00
alex.bluesman.smirnov@gmail.com
1010f54018 mac802154: allocation of ieee802154 device 
An interface to allocate and register ieee802154 compatible device.
The allocated device has the following representation in memory:

	+-----------------------+
	| struct wpan_phy       |
	+-----------------------+
	| struct mac802154_priv |
	+-----------------------+
	| driver's private data |
	+-----------------------+

Used by device drivers to register new instance in the stack.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2012-05-16 15:16:35 -04:00
Jesse Gross
ccb1352e76 net: Add Open vSwitch kernel components. 
Open vSwitch is a multilayer Ethernet switch targeted at virtualized
environments.  In addition to supporting a variety of features
expected in a traditional hardware switch, it enables fine-grained
programmatic extension and flow-based control of the network.
This control is useful in a wide variety of applications but is
particularly important in multi-server virtualization deployments,
which are often characterized by highly dynamic endpoints and the need
to maintain logical abstractions for multiple tenants.

The Open vSwitch datapath provides an in-kernel fast path for packet
forwarding.  It is complemented by a userspace daemon, ovs-vswitchd,
which is able to accept configuration from a variety of sources and
translate it into packet processing rules.

See http://openvswitch.org for more information and userspace
utilities.

Signed-off-by: Jesse Gross <jesse@nicira.com>
 2011-12-03 09:35:17 -08:00
Lauro Ramos Venancio
3e256b8f8d NFC: add nfc subsystem core 
The NFC subsystem core is responsible for providing the device driver
interface. It is also responsible for providing an interface to the control
operations and data exchange.

Signed-off-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
 2011-07-05 15:26:57 -04:00
Thomas Graf
2ea6d8c446 net: Enter net/ipv6/ even if CONFIG_IPV6=n 
exthdrs_core.c and addrconf_core.c in net/ipv6/ contain bits which
must be made available even if IPv6 is disabled.

net/ipv6/Makefile already correctly includes them if CONFIG_IPV6=n
but net/Makefile prevents entering the subdirectory.

Signed-off-by: Thomas Graf <tgraf@infradead.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2011-03-07 12:50:52 -08:00
Sven Eckelmann
c6c8fea297 net: Add batman-adv meshing protocol 
B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a routing
protocol for multi-hop ad-hoc mesh networks. The networks may be wired or
wireless. See http://www.open-mesh.org/ for more information and user space
tools.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2010-12-16 13:44:24 -08:00
Yehuda Sadeh
3d14c5d2b6 ceph: factor out libceph from Ceph file system 
This factors out protocol and low-level storage parts of ceph into a
separate libceph module living in net/ceph and include/linux/ceph.  This
is mostly a matter of moving files around.  However, a few key pieces
of the interface change as well:

 - ceph_client becomes ceph_fs_client and ceph_client, where the latter
   captures the mon and osd clients, and the fs_client gets the mds client
   and file system specific pieces.
 - Mount option parsing and debugfs setup is correspondingly broken into
   two pieces.
 - The mon client gets a generic handler callback for otherwise unknown
   messages (mds map, in this case).
 - The basic supported/required feature bits can be expanded (and are by
   ceph_fs_client).

No functional change, aside from some subtle error handling cases that got
cleaned up in the refactoring process.

Signed-off-by: Sage Weil <sage@newdream.net>
 2010-10-20 15:37:28 -07:00
Wang Lei
1a4240f476 DNS: Separate out CIFS DNS Resolver code 
Separate out the DNS resolver key type from the CIFS filesystem into its own
module so that it can be made available for general use, including the AFS
filesystem module.

This facility makes it possible for the kernel to upcall to userspace to have
it issue DNS requests, package up the replies and present them to the kernel
in a useful form.  The kernel is then able to cache the DNS replies as keys
can be retained in keyrings.

Resolver keys are of type "dns_resolver" and have a case-insensitive
description that is of the form "[<type>:]<domain_name>".  The optional <type>
indicates the particular DNS lookup and packaging that's required.  The
<domain_name> is the query to be made.

If <type> isn't given, a basic hostname to IP address lookup is made, and the
result is stored in the key in the form of a printable string consisting of a
comma-separated list of IPv4 and IPv6 addresses.

This key type is supported by userspace helpers driven from /sbin/request-key
and configured through /etc/request-key.conf.  The cifs.upcall utility is
invoked for UNC path server name to IP address resolution.

The CIFS functionality is encapsulated by the dns_resolve_unc_to_ip() function,
which is used to resolve a UNC path to an IP address for CIFS filesystem.  This
part remains in the CIFS module for now.

See the added Documentation/networking/dns_resolver.txt for more information.

Signed-off-by: Wang Lei <wang840925@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
 2010-08-05 17:17:51 +00:00
Nicolas Kaiser
d1e3168916 net/Makefile: conditionally descend to wireless and ieee802154 
Don't descend to wireless and ieee802154 unless they are actually used.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2010-06-29 15:32:43 -07:00
James Chapman
fd558d186d l2tp: Split pppol2tp patch into separate l2tp and ppp parts 
This patch splits the pppol2tp driver into separate L2TP and PPP parts
to prepare for L2TPv3 support. In L2TPv3, protocols other than PPP can
be carried, so this split creates a common L2TP core that will handle
the common L2TP bits which protocol support modules such as PPP will
use.

Note that the existing pppol2tp module is split into l2tp_core and
l2tp_ppp by this change.

There are no feature changes here. Internally, however, there are
significant changes, mostly to handle the separation of PPP-specific
data from the L2TP session and to provide hooks in the core for
modules like PPP to access.

Signed-off-by: James Chapman <jchapman@katalix.com>
Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2010-04-03 14:56:02 -07:00
James Chapman
21b4aaa143 l2tp: Relocate pppol2tp driver to new net/l2tp directory 
This patch moves the existing pppol2tp driver from drivers/net into a
new net/l2tp directory, which is where the upcoming L2TPv3 code will
live. The existing CONFIG_PPPOL2TP config option is left in its
current place to avoid "make oldconfig" issues when an existing
pppol2tp user takes this change. (This is the same approach used for
the pppoatm driver, which moved to net/atm.)

There are no code changes. The existing drivers/net/pppol2tp.c is
simply moved to net/l2tp.

Signed-off-by: James Chapman <jchapman@katalix.com>
Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2010-04-03 14:56:01 -07:00
Sjur Braendeland
3908c69023 net-caif: add CAIF Kconfig and Makefiles 
Kconfig and Makefiles with options for:
CAIF:        Including caif
CAIF_DEBUG:  CAIF Debug
CAIF_NETDEV: CAIF Network Device for GPRS Contexts

Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2010-03-30 19:08:49 -07:00
Changli Gao
df5ede8258 net: remove redundant sched/ in net/Makefile 
Remove redundant sched/ in net/Makefile.

sched/ is contained in previous:
obj-$(CONFIG_NET) += ethernet/ 802/ sched/ netlink/,
so the later
obj-$(CONFIG_NET_SCHED) += sched/
isn't necessary.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
----
Makefile | 1 -
1 file changed, 1 deletion(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
 2009-07-12 20:11:14 -07:00
Sergey Lapin
9ec7671603 net: add IEEE 802.15.4 socket family implementation 
Add support for communication over IEEE 802.15.4 networks. This implementation
is neither certified nor complete, but aims to that goal. This commit contains
only the socket interface for communication over IEEE 802.15.4 networks.
One can either send RAW datagrams or use SOCK_DGRAM to encapsulate data
inside normal IEEE 802.15.4 packets.

Configuration interface, drivers and software MAC 802.15.4 implementation will
follow.

Initial implementation was done by Maxim Gorbachyov, Maxim Osipov and Pavel
Smolensky as a research project at Siemens AG. Later the stack was heavily
reworked to better suit the linux networking model, and is now maitained
as an open project partially sponsored by Siemens.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Sergey Lapin <slapin@ossfans.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2009-06-09 05:25:32 -07:00
Andy Grover
fe17f84f5f RDS: Kconfig and Makefile 
Add RDS Kconfig and Makefile, and modify net/'s to add
us to the build.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2009-02-26 23:43:35 -08:00
Inaky Perez-Gonzalez
b0c83ae1de wimax: Makefile, Kconfig and docbook linkage for the stack 
This patch provides Makefile and KConfig for the WiMAX stack,
integrating them into the networking stack's Makefile, Kconfig and
doc-book templates.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
 2009-01-07 10:00:17 -08:00
Jeff Kirsher
7a6b6f515f DCB: fix kconfig option 
Since the netlink option for DCB is necessary to actually be useful,
simplified the Kconfig option.  In addition, added useful help text for the
Kconfig option.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2008-11-25 01:02:08 -08:00
John W. Linville
beb2a7f331 net/ieee80211 -> drivers/net/ipw2x00/libipw_* rename 
The old ieee80211 code only remains as a support library for the ipw2100
and ipw2200 drivers.  So, move the code and rename it appropriately to
reflects it's true purpose and status.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
 2008-11-21 11:08:18 -05:00