Commit graph android_kernel_sony_sdm845/include/linux/cpu.h
Message SHA1
Merge remote-tracking branch 'common/android-4.9-q' into android12-4.9-sdm845
* common/android-4.9-q:
  Linux 4.9.321
  swiotlb: skip swiotlb_bounce when orig_addr is zero
  kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
  fdt: Update CRC check for rng-seed
  xen: unexport __init-annotated xen_xlate_map_ballooned_pages()
  drm: remove drm_fb_helper_modinit
  powerpc/pseries: wire up rng during setup_arch()
  modpost: fix section mismatch check for exported init/exit sections
  ARM: cns3xxx: Fix refcount leak in cns3xxx_init
  ARM: Fix refcount leak in axxia_boot_secondary
  ARM: exynos: Fix refcount leak in exynos_map_pmu
  ARM: dts: imx6qdl: correct PU regulator ramp delay
  powerpc: Enable execve syscall exit tracepoint
  xtensa: Fix refcount leak bug in time.c
  xtensa: xtfpga: Fix refcount leak bug in setup
  iio: trigger: sysfs: fix use-after-free on remove
  iio: accel: mma8452: ignore the return value of reset operation
  iio:accel:bma180: rearrange iio trigger get and register
  usb: chipidea: udc: check request status before setting device address
  iio: adc: vf610: fix conversion mode sysfs node name
  igb: Make DMA faster when CPU is active on the PCIe link
  MIPS: Remove repetitive increase irq_err_count
  x86/xen: Remove undefined behavior in setup_features()
  bonding: ARP monitor spams NETDEV_NOTIFY_PEERS notifiers
  USB: serial: option: add Telit LE910Cx 0x1250 composition
  random: quiet urandom warning ratelimit suppression message
  dm era: commit metadata in postsuspend after worker stops
  ata: libata: add qc->flags in ata_qc_complete_template tracepoint
  random: schedule mix_interrupt_randomness() less often
  vt: drop old FONT ioctls
  BACKPORT: l2tp: fix race in pppol2tp_release with session object destroy
  BACKPORT: l2tp: don't use inet_shutdown on ppp session destroy
  Linux 4.9.320
  tcp: drop the hash_32() part from the index calculation
  tcp: increase source port perturb table to 2^16
  tcp: dynamically allocate the perturb table used by source ports
  tcp: add small random increments to the source port
  tcp: use different parts of the port_offset for index and offset
  secure_seq: use the 64 bits of the siphash for port offset calculation
  tcp: add some entropy in __inet_hash_connect()
  tcp: change source port randomizarion at connect() time
  fuse: fix pipe buffer lifetime for direct_io
  Reinstate some of "swiotlb: rework "fix info leak with DMA_FROM_DEVICE""
  swiotlb: fix info leak with DMA_FROM_DEVICE
  xprtrdma: fix incorrect header size calculations
  s390/mm: use non-quiescing sske for KVM switch to keyed guest
  l2tp: fix race in pppol2tp_release with session object destroy
  l2tp: don't use inet_shutdown on ppp session destroy
  ext4: add reserved GDT blocks check
  ext4: make variable "count" signed
  ext4: fix bug_on ext4_mb_use_inode_pa
  serial: 8250: Store to lsr_save_flags after lsr read
  usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe
  USB: serial: io_ti: add Agilent E5805A support
  USB: serial: option: add support for Cinterion MV31 with new baseline
  comedi: vmk80xx: fix expression for tx buffer size
  irqchip/gic-v3: Iterate over possible CPUs by for_each_possible_cpu()
  irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
  misc: atmel-ssc: Fix IRQ check in ssc_probe
  pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE
  random: credit cpu and bootloader seeds by default
  net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag
  ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
  nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred
  virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed
  scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology
  scsi: vmw_pvscsi: Expand vcpuHint to 16 bits
  ASoC: wm8962: Fix suspend while playing music
  ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
  ASoC: cs42l56: Correct typo in minimum level for SX volume controls
  ASoC: cs42l52: Correct TLV for Bypass Volume
  ASoC: cs53l30: Correct number of volume levels on SX controls
  ASoC: cs42l52: Fix TLV scales for mixer controls
  random: account for arch randomness in bits
  random: mark bootloader randomness code as __init
  random: avoid checking crng_ready() twice in random_init()
  crypto: drbg - make reseeding from get_random_bytes() synchronous
  crypto: drbg - always try to free Jitter RNG instance
  crypto: drbg - move dynamic ->reseed_threshold adjustments to __drbg_seed()
  crypto: drbg - track whether DRBG was seeded with !rng_is_initialized()
  crypto: drbg - prepare for more fine-grained tracking of seeding state
  crypto: drbg - always seeded with SP800-90B compliant noise source
  crypto: drbg - add FIPS 140-2 CTRNG for noise source
  Revert "random: use static branch for crng_ready()"
  random: check for signals after page of pool writes
  random: wire up fops->splice_{read,write}_iter()
  random: convert to using fops->write_iter()
  random: move randomize_page() into mm where it belongs
  random: move initialization functions out of hot pages
  random: use proper return types on get_random_{int,long}_wait()
  random: remove extern from functions in header
  random: use static branch for crng_ready()
  random: credit architectural init the exact amount
  random: handle latent entropy and command line from random_init()
  random: use proper jiffies comparison macro
  random: remove ratelimiting for in-kernel unseeded randomness
  random: avoid initializing twice in credit race
  random: use symbolic constants for crng_init states
  siphash: use one source of truth for siphash permutations
  random: help compiler out with fast_mix() by using simpler arguments
  random: do not use input pool from hard IRQs
  random: order timer entropy functions below interrupt functions
  random: do not pretend to handle premature next security model
  random: do not use batches when !crng_ready()
  random: insist on random_get_entropy() existing in order to simplify
  uapi: rename ext2_swab() to swab() and share globally in swab.h
  xtensa: use fallback for random_get_entropy() instead of zero
  sparc: use fallback for random_get_entropy() instead of zero
  um: use fallback for random_get_entropy() instead of zero
  x86/tsc: Use fallback for random_get_entropy() instead of zero
  nios2: use fallback for random_get_entropy() instead of zero
  arm: use fallback for random_get_entropy() instead of zero
  mips: use fallback for random_get_entropy() instead of just c0 random
  m68k: use fallback for random_get_entropy() instead of zero
  timekeeping: Add raw clock fallback for random_get_entropy()
  powerpc: define get_cycles macro for arch-override
  alpha: define get_cycles macro for arch-override
  parisc: define get_cycles macro for arch-override
  s390: define get_cycles macro for arch-override
  ia64: define get_cycles macro for arch-override
  init: call time_init() before rand_initialize()
  random: fix sysctl documentation nits
  random: document crng_fast_key_erasure() destination possibility
  random: make random_get_entropy() return an unsigned long
  random: check for signals every PAGE_SIZE chunk of /dev/[u]random
  random: check for signal_pending() outside of need_resched() check
  random: do not allow user to keep crng key around on stack
  random: do not split fast init input in add_hwgenerator_randomness()
  random: mix build-time latent entropy into pool at init
  random: re-add removed comment about get_random_{u32,u64} reseeding
  random: treat bootloader trust toggle the same way as cpu trust toggle
  random: skip fast_init if hwrng provides large chunk of entropy
  random: check for signal and try earlier when generating entropy
  random: reseed more often immediately after booting
  random: make consistent usage of crng_ready()
  random: use SipHash as interrupt entropy accumulator
  random: replace custom notifier chain with standard one
  random: don't let 644 read-only sysctls be written to
  random: give sysctl_random_min_urandom_seed a more sensible value
  random: do crng pre-init loading in worker rather than irq
  random: unify cycles_t and jiffies usage and types
  random: cleanup UUID handling
  random: only wake up writers after zap if threshold was passed
  random: round-robin registers as ulong, not u32
  random: clear fast pool, crng, and batches in cpuhp bring up
  random: pull add_hwgenerator_randomness() declaration into random.h
  hwrng: remember rng chosen by user
  hwrng: use rng source with best quality
  hwrng: core - remove unused PFX macro
  hwrng: core - Move hwrng miscdev minor number to include/linux/miscdevice.h
  hwrng: core - Rewrite the header
  hwrng: core - rewrite better comparison to NULL
  hwrng: core - do not use multiple blank lines
  random: check for crng_init == 0 in add_device_randomness()
  random: unify early init crng load accounting
  random: do not take pool spinlock at boot
  random: defer fast pool mixing to worker
  workqueue: make workqueue available early during boot
  random: rewrite header introductory comment
  random: group sysctl functions
  random: group userspace read/write functions
  random: group entropy collection functions
  random: group entropy extraction functions
  random: group initialization wait functions
  random: remove whitespace and reorder includes
  random: remove useless header comment
  random: introduce drain_entropy() helper to declutter crng_reseed()
  random: deobfuscate irq u32/u64 contributions
  random: add proper SPDX header
  random: remove unused tracepoints
  random: remove ifdef'd out interrupt bench
  random: tie batched entropy generation to base_crng generation
  random: zero buffer after reading entropy from userspace
  random: remove outdated INT_MAX >> 6 check in urandom_read()
  random: use hash function for crng_slow_load()
  random: absorb fast pool into input pool after fast load
  random: do not xor RDRAND when writing into /dev/random
  random: ensure early RDSEED goes through mixer on init
  random: inline leaves of rand_initialize()
  random: use RDSEED instead of RDRAND in entropy extraction
  random: fix locking in crng_fast_load()
  random: remove batched entropy locking
  random: remove use_input_pool parameter from crng_reseed()
  random: make credit_entropy_bits() always safe
  random: always wake up entropy writers after extraction
  random: use linear min-entropy accumulation crediting
  random: simplify entropy debiting
  random: use computational hash for entropy extraction
  random: only call crng_finalize_init() for primary_crng
  random: access primary_pool directly rather than through pointer
  random: continually use hwgenerator randomness
  random: simplify arithmetic function flow in account()
  random: access input_pool_data directly rather than through pointer
  random: cleanup fractional entropy shift constants
  random: prepend remaining pool constants with POOL_
  random: de-duplicate INPUT_POOL constants
  random: remove unused OUTPUT_POOL constants
  random: rather than entropy_store abstraction, use global
  random: try to actively add entropy rather than passively wait for it
  random: remove unused extract_entropy() reserved argument
  random: remove incomplete last_data logic
  random: cleanup integer types
  crypto: chacha20 - Fix chacha20_block() keystream alignment (again)
  random: cleanup poolinfo abstraction
  random: fix typo in comments
  random: don't reset crng_init_cnt on urandom_read()
  random: avoid superfluous call to RDRAND in CRNG extraction
  random: early initialization of ChaCha constants
  random: initialize ChaCha20 constants with correct endianness
  random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs
  random: harmonize "crng init done" messages
  random: mix bootloader randomness into pool
  random: do not re-init if crng_reseed completes before primary init
  random: do not sign extend bytes for rotation when mixing
  random: use BLAKE2s instead of SHA1 in extraction
  random: remove unused irq_flags argument from add_interrupt_randomness()
  random: document add_hwgenerator_randomness() with other input functions
  crypto: blake2s - adjust include guard naming
  crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h>
  MAINTAINERS: co-maintain random.c
  random: remove dead code left over from blocking pool
  random: avoid arch_get_random_seed_long() when collecting IRQ randomness
  random: add arch_get_random_*long_early()
  powerpc: Use bool in archrandom.h
  linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
  linux/random.h: Use false with bool
  linux/random.h: Remove arch_has_random, arch_has_random_seed
  powerpc: Remove arch_has_random, arch_has_random_seed
  x86: Remove arch_has_random, arch_has_random_seed
  random: avoid warnings for !CONFIG_NUMA builds
  random: split primary/secondary crng init paths
  random: remove some dead code of poolinfo
  random: fix typo in add_timer_randomness()
  random: Add and use pr_fmt()
  random: convert to ENTROPY_BITS for better code readability
  random: remove unnecessary unlikely()
  random: remove kernel.random.read_wakeup_threshold
  random: delete code to pull data into pools
  random: remove the blocking pool
  random: fix crash on multiple early calls to add_bootloader_randomness()
  random: make /dev/random be almost like /dev/urandom
  random: ignore GRND_RANDOM in getentropy(2)
  random: add GRND_INSECURE to return best-effort non-cryptographic bytes
  random: Add a urandom_read_nowait() for random APIs that don't warn
  random: Don't wake crng_init_wait when crng_init == 1
  lib/crypto: sha1: re-roll loops to reduce code size
  lib/crypto: blake2s: move hmac construction into wireguard
  crypto: blake2s - generic C library implementation and selftest
  crypto: Deduplicate le32_to_cpu_array() and cpu_to_le32_array()
  Revert "hwrng: core - Freeze khwrng thread during suspend"
  char/random: Add a newline at the end of the file
  random: Use wait_event_freezable() in add_hwgenerator_randomness()
  fdt: add support for rng-seed
  random: Support freezable kthreads in add_hwgenerator_randomness()
  random: fix soft lockup when trying to read from an uninitialized blocking pool
  latent_entropy: avoid build error when plugin cflags are not set
  random: document get_random_int() family
  random: move rand_initialize() earlier
  random: only read from /dev/random after its pool has received 128 bits
  drivers/char/random.c: make primary_crng static
  drivers/char/random.c: remove unused stuct poolinfo::poolbits
  drivers/char/random.c: constify poolinfo_table
  random: make CPU trust a boot parameter
  random: Make crng state queryable
  random: remove preempt disabled region
  random: add a config option to trust the CPU's hwrng
  random: Return nbytes filled from hw RNG
  random: Fix whitespace pre random-bytes work
  drivers/char/random.c: remove unused dont_count_entropy
  random: optimize add_interrupt_randomness
  random: always fill buffer in get_random_bytes_wait
  crypto: chacha20 - Fix keystream alignment for chacha20_block()
  random: fix data race on crng_node_pool
  random: always use batched entropy for get_random_u{32,64}
  Revert "char/random: silence a lockdep splat with printk()"
  char/random: silence a lockdep splat with printk()
  random: add a spinlock_t to struct batched_entropy
  random: rate limit unseeded randomness warnings
  random: fix possible sleeping allocation from irq context
  random: set up the NUMA crng instances after the CRNG is fully initialized
  random: use a different mixing algorithm for add_device_randomness()
  random: fix warning message on ia64 and parisc
  random: reorder READ_ONCE() in get_random_uXX
  random: suppress spammy warnings about unseeded randomness
  random: do not ignore early device randomness
  random: warn when kernel uses unseeded randomness
  random: add get_random_{bytes,u32,u64,int,long,once}_wait family
  random: add wait_for_random_bytes() API
  random: silence compiler warnings and fix race
  random: invalidate batched entropy after crng init
  random: move random_min_urandom_seed into CONFIG_SYSCTL ifdef block
  random: convert get_random_int/long into get_random_u32/u64
  random: fix comment for unused random_min_urandom_seed
  random: remove variable limit
  random: remove stale urandom_init_wait
  random: remove stale maybe_reseed_primary_crng
  9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"
  Linux 4.9.319
  x86/speculation/mmio: Print SMT warning
  KVM: x86/speculation: Disable Fill buffer clear within guests
  x86/speculation/mmio: Reuse SRBDS mitigation for SBDS
  x86/speculation/srbds: Update SRBDS mitigation selection
  x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data
  x86/speculation/mmio: Enable CPU Fill buffer clearing on idle
  x86/bugs: Group MDS, TAA & Processor MMIO Stale Data mitigations
  x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data
  x86/speculation: Add a common function for MD_CLEAR mitigation update
  x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug
  Documentation: Add documentation for Processor MMIO Stale Data
  x86/cpu: Add another Alder Lake CPU to the Intel family
  x86/cpu: Add Lakefield, Alder Lake and Rocket Lake models to the to Intel CPU family
  x86/cpu: Add Comet Lake to the Intel CPU models header
  x86/CPU: Add more Icelake model numbers
  x86/CPU: Add Icelake model number
  x86/cpu: Add Cannonlake to Intel family
  x86/cpu: Add Jasper Lake to Intel family
  cpu/speculation: Add prototype for cpu_show_srbds()
  x86/cpu: Add Elkhart Lake to Intel family
  ANDROID: arch: fix backported syscall numbers
  Linux 4.9.318
  tcp: fix tcp_mtup_probe_success vs wrong snd_cwnd
  PCI: qcom: Fix unbalanced PHY init on probe errors
  mtd: cfi_cmdset_0002: Use chip_ready() for write on S29GL064N
  mtd: cfi_cmdset_0002: Move and rename chip_check/chip_ready/chip_good_for_write
  powerpc/32: Fix overread/overwrite of thread_struct via ptrace
  Input: bcm5974 - set missing URB_NO_TRANSFER_DMA_MAP urb flag
  nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling
  nfc: st21nfca: fix incorrect validating logic in EVT_TRANSACTION
  ata: libata-transport: fix {dma|pio|xfer}_mode sysfs files
  cifs: return errors during session setup during reconnects
  ALSA: hda/conexant - Fix loopback issue with CX20632
  vringh: Fix loop descriptors check in the indirect cases
  nodemask: Fix return values to be unsigned
  modpost: fix undefined behavior of is_arm_mapping_symbol()
  drm/radeon: fix a possible null pointer dereference
  Revert "net: af_key: add check for pfkey_broadcast in function pfkey_process"
  md: protect md_unregister_thread from reentrancy
  serial: msm_serial: disable interrupts in __msm_console_write()
  staging: rtl8712: fix uninit-value in r871xu_drv_init()
  clocksource/drivers/sp804: Avoid error on multiple instances
  misc: rtsx: set NULL intfdata when probe fails
  usb: dwc2: gadget: don't reset gadget's driver->bus
  USB: hcd-pci: Fully suspend across freeze/thaw cycle
  drivers: usb: host: Fix deadlock in oxu_bus_suspend()
  drivers: tty: serial: Fix deadlock in sa1100_set_termios()
  USB: host: isp116x: check return value after calling platform_get_resource()
  drivers: staging: rtl8192e: Fix deadlock in rtllib_beacons_stop()
  tty: Fix a possible resource leak in icom_probe
  tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()
  lkdtm/usercopy: Expand size of "out of frame" object
  iio: dummy: iio_simple_dummy: check the return value of kstrdup()
  net: altera: Fix refcount leak in altera_tse_mdio_create
  net: xfrm: unexport __init-annotated xfrm4_protocol_init()
  SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer()
  net/mlx4_en: Fix wrong return value on ioctl EEPROM query failure
  ata: pata_octeon_cf: Fix refcount leak in octeon_cf_probe
  net: fix nla_strcmp to handle more then one trailing null character
  video: fbdev: pxa3xx-gcu: release the resources correctly in pxa3xx_gcu_probe/remove()
  m68knommu: fix undefined reference to `_init_sp'
  m68knommu: set ZERO_PAGE() to the allocated zeroed page
  i2c: cadence: Increase timeout per message if necessary
  tracing: Avoid adding tracer option before update_tracer_options
  tcp: tcp_rtx_synack() can be called from process context
  jffs2: fix memory leak in jffs2_do_fill_super
  modpost: fix removing numeric suffixes
  net: ethernet: mtk_eth_soc: out of bounds read in mtk_hwlro_get_fdir_entry()
  clocksource/drivers/oxnas-rps: Fix irq_of_parse_and_map() return value
  firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle
  serial: st-asc: Sanitize CSIZE and correct PARENB for CS7
  serial: sh-sci: Don't allow CS5-6
  serial: txx9: Don't allow CS5-6
  serial: digicolor-usart: Don't allow CS5-6
  serial: meson: acquire port->lock in startup()
  rtc: mt6397: check return value after calling platform_get_resource()
  rpmsg: qcom_smd: Fix irq_of_parse_and_map() return value
  pwm: lp3943: Fix duty calculation in case period was clamped
  USB: storage: karma: fix rio_karma_init return
  usb: usbip: add missing device lock on tweak configuration cmd
  usb: usbip: fix a refcount leak in stub_probe()
  staging: greybus: codecs: fix type confusion of list iterator variable
  pcmcia: db1xxx_ss: restrict to MIPS_DB1XXX boards
  netfilter: nf_tables: disallow non-stateful expression in sets earlier
  MIPS: IP27: Remove incorrect `cpu_has_fpu' override
  RDMA/rxe: Generate a completion for unsupported/invalid opcode
  dt-bindings: gpio: altera: correct interrupt-cells
  docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0
  gma500: fix an incorrect NULL check on list iterator
  carl9170: tx: fix an incorrect use of list iterator
  ASoC: rt5514: Fix event generation for "DSP Voice Wake Up" control
  rtl818x: Prevent using not initialized queues
  hugetlb: fix huge_pmd_unshare address update
  nodemask.h: fix compilation error with GCC12
  iommu/msm: Fix an incorrect NULL check on list iterator
  um: Fix out-of-bounds read in LDT setup
  um: chan_user: Fix winch_tramp() return value
  mac80211: upgrade passive scan to active scan on DFS channels after beacon rx
  irqchip: irq-xtensa-mx: fix initial IRQ affinity
  irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x
  RDMA/hfi1: Fix potential integer multiplication overflow errors
  md: fix an incorrect NULL check in md_reload_sb
  md: fix an incorrect NULL check in does_sb_need_changing
  drm/bridge: analogix_dp: Grab runtime PM reference for DP-AUX
  drm/amdgpu/cs: make commands with 0 chunks illegal behaviour.
  scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled
  scsi: dc395x: Fix a missing check on list iterator
  ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock
  dlm: fix missing lkb refcount handling
  dlm: fix plock invalid read
  ext4: verify dir block before splitting it
  ext4: fix bug_on in ext4_writepages
  ext4: fix use-after-free in ext4_rename_dir_prepare
  fs-writeback: writeback_sb_inodes:Recalculate 'wrote' according skipped pages
  iwlwifi: mvm: fix assert 1F04 upon reconfig
  wifi: mac80211: fix use-after-free in chanctx code
  iommu/amd: Increase timeout waiting for GA log enablement
  video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup
  Input: sparcspkr - fix refcount leak in bbc_beep_probe
  tty: fix deadlock caused by calling printk() under tty_port->lock
  powerpc/4xx/cpm: Fix return value of __setup() handler
  powerpc/idle: Fix return value of __setup() handler
  powerpc/8xx: export 'cpm_setbrg' for modules
  drivers/base/node.c: fix compaction sysfs file leak
  scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac()
  mfd: ipaq-micro: Fix error check return value of platform_get_irq()
  soc: qcom: smsm: Fix missing of_node_put() in smsm_parse_ipc
  soc: qcom: smp2p: Fix missing of_node_put() in smp2p_parse_ipc
  rxrpc: Don't try to resend the request if we're receiving the reply
  rxrpc: Fix listen() setting the bar too high for the prealloc rings
  ASoC: wm2000: fix missing clk_disable_unprepare() on error in wm2000_anc_transition()
  sctp: read sk->sk_bound_dev_if once in sctp_rcv()
  m68k: math-emu: Fix dependencies of math emulation support
  Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout
  media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init
  media: exynos4-is: Change clk_disable to clk_disable_unprepare
  regulator: pfuze100: Fix refcount leak in pfuze_parse_regulators_dt
  ASoC: mxs-saif: Fix refcount leak in mxs_saif_probe
  media: uvcvideo: Fix missing check to determine if element is found in list
  drm/msm: return an error pointer in msm_gem_prime_get_sg_table()
  x86/mm: Cleanup the control_va_addr_alignment() __setup handler
  drm/rockchip: vop: fix possible null-ptr-deref in vop_bind()
  drm/msm/hdmi: check return value after calling platform_get_resource_byname()
  drm/msm/dsi: fix error checks and return values for DSI xmit functions
  x86/pm: Fix false positive kmemleak report in msr_build_context()
  inotify: show inotify mask flags in proc fdinfo
  ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix
  spi: img-spfi: Fix pm_runtime_get_sync() error checking
  HID: hid-led: fix maximum brightness for Dream Cheeky
  NFC: NULL out the dev->rfkill to prevent UAF
  spi: spi-ti-qspi: Fix return value handling of wait_for_completion_timeout
  drm/mediatek: Fix mtk_cec_mask()
  x86/delay: Fix the wrong asm constraint in delay_loop()
  ASoC: mediatek: Fix error handling in mt8173_max98090_dev_probe
  drm: fix EDID struct for old ARM OABI format
  macintosh/via-pmu: Fix build failure when CONFIG_INPUT is disabled
  powerpc/xics: fix refcount leak in icp_opal_init()
  PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store()
  ARM: hisi: Add missing of_node_put after of_find_compatible_node
  ARM: dts: exynos: add atmel,24c128 fallback to Samsung EEPROM
  ARM: versatile: Add missing of_node_put in dcscb_init
  fat: add ratelimit to fat*_ent_bread()
  ARM: OMAP1: clock: Fix UART rate reporting algorithm
  fs: jfs: fix possible NULL pointer dereference in dbFree()
  eth: tg3: silence the GCC 12 array-bounds warning
  rxrpc: Return an error to sendmsg if call failed
  media: exynos4-is: Fix compile warning
  ASoC: rt5645: Fix errorenous cleanup order
  nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
  openrisc: start CPU timer early in boot
  ipmi:ssif: Check for NULL msg when handling events and messages
  dma-debug: change allocation mode from GFP_NOWAIT to GFP_ATIOMIC
  ASoC: dapm: Don't fold register value changes into notifications
  ipv6: Don't send rs packets to the interface of ARPHRD_TUNNEL
  drm/amd/pm: fix the compile warning
  scsi: megaraid: Fix error check return value of register_chrdev()
  media: cx25821: Fix the warning when removing the module
  ath9k: fix QCA9561 PA bias level
  drm/amd/pm: fix double free in si_parse_power_table()
  ALSA: jack: Access input_dev under mutex
  ACPICA: Avoid cache flush inside virtual machines
  ipw2x00: Fix potential NULL dereference in libipw_xmit()
  b43: Fix assigning negative value to unsigned variable
  b43legacy: Fix assigning negative value to unsigned variable
  mwifiex: add mutex lock for call in mwifiex_dfs_chan_sw_work_queue
  drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes
  btrfs: add "0x" prefix for unsupported optional features
  ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
  ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP
  USB: new quirk for Dell Gen 2 devices
  BACKPORT: psi: Fix uaf issue when psi trigger is destroyed while being polled

 Conflicts:
	arch/arm/include/asm/unistd.h
	arch/arm/kernel/calls.S
	drivers/char/Kconfig
	drivers/char/random.c
	fs/fat/fatent.c
	include/linux/random.h
	init/main.c
	kernel/cpu.c
	lib/Makefile

Change-Id: I43d99223205dec1f47e87016818be23514a62cba

Michael Bestas   commited 2022-07-18 14:05:31 +03:00
fb6696bad4
This is the 4.9.319 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmKrDW0ACgkQONu9yGCS
 aT7XxA/+NhQe4JxqGiKyCKoPD4fC3Ho3UCl6MMIM2ffw4BW/x+oKPPeTJj0u9r1Y
 t72FIF2P8CAZegq0hOeztN/VwG8s2gv0up2NHr3a30ST8yDuJFaHm2U9Tw7NDVGc
 BWcrZSCGHnX++44awunAYyrlEh8NIJWA+SmQWbgycl+JVeNF77PKYZsmr6/SYlKT
 ObD+Ltm9gxcpW1p3dhbpEQICeBLpDuscLGkIgBKZLPL7kpBknxFgeMZ7wIek+u7z
 G+/7BD895IfWpoLW5GbhFvUZkTIQm2MkxLhRwkt3gfDdg+BICIdAXxwmuDeS6UFn
 rYysmRAyr+0iZ9NfR/jclLH9/t17RviC27ibYxFBfpK+FmR13+gYv5L844Hic5Ug
 Beua6T5d129AVUtlA5iAzZNFD36b2ZJJuv73e796MYZ/oex4uKLS4E6xTIT20amJ
 QtUK8QQet4xdTJFuy9w6aAEfzNWXO6iOGRROQwo8tiNoaCG9wdAIdyvjoMKCgOSK
 Oi/J9/F2sCSbajlIrSAEQrMNfx+LBy5s1UMhxvLkujIxcuusbyk1SYpgMeBtHjZa
 a59KOFlGYmMj4ZTgisWY4cVwW41cR5ZwLqkwZquRsi01pehix+XZTma5UbMJyav4
 PShbBuHqh71J70fIiROynuLfjDr37kaEhjIGVzE+SOFxq4FZhRc=
 =MXwP
 -----END PGP SIGNATURE-----

Merge 4.9.319 into android-4.9-q

Changes in 4.9.319
	x86/cpu: Add Elkhart Lake to Intel family
	cpu/speculation: Add prototype for cpu_show_srbds()
	x86/cpu: Add Jasper Lake to Intel family
	x86/cpu: Add Cannonlake to Intel family
	x86/CPU: Add Icelake model number
	x86/CPU: Add more Icelake model numbers
	x86/cpu: Add Comet Lake to the Intel CPU models header
	x86/cpu: Add Lakefield, Alder Lake and Rocket Lake models to the to Intel CPU family
	x86/cpu: Add another Alder Lake CPU to the Intel family
	Documentation: Add documentation for Processor MMIO Stale Data
	x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug
	x86/speculation: Add a common function for MD_CLEAR mitigation update
	x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data
	x86/bugs: Group MDS, TAA & Processor MMIO Stale Data mitigations
	x86/speculation/mmio: Enable CPU Fill buffer clearing on idle
	x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data
	x86/speculation/srbds: Update SRBDS mitigation selection
	x86/speculation/mmio: Reuse SRBDS mitigation for SBDS
	KVM: x86/speculation: Disable Fill buffer clear within guests
	x86/speculation/mmio: Print SMT warning
	Linux 4.9.319

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: If6e129957d24760e3f6a16c270bc8fb6c44446a3

Greg Kroah-Hartman   commited 2022-06-16 13:05:12 +02:00
38c37c4337
x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data
commit 8d50cdf8b8341770bc6367bce40c0c1bb0e1d5b3 upstream

Add the sysfs reporting file for Processor MMIO Stale Data
vulnerability. It exposes the vulnerability and mitigation state similar
to the existing files for the other hardware vulnerabilities.

Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Pawan Gupta   authored and   Greg Kroah-Hartman   commited 2022-06-16 13:00:52 +02:00
8acd4bf942
cpu/speculation: Add prototype for cpu_show_srbds()
commit 2accfa69050c2a0d6fc6106f609208b3e9622b26 upstream.

0-day is not happy that there is no prototype for cpu_show_srbds():

drivers/base/cpu.c:565:16: error: no previous prototype for 'cpu_show_srbds'

Fixes: 7e5b3c267d25 ("x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200617141410.93338-1-linux@roeck-us.net
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Guenter Roeck   authored and   Greg Kroah-Hartman   commited 2022-06-16 13:00:50 +02:00
3b68328c00
Merge branch 'android-4.9-q' of https://android.googlesource.com/kernel/common into HEAD
* 'android-4.9-q' of https://android.googlesource.com/kernel/common: (2014 commits)

 Conflicts:
	arch/arm64/kernel/psci.c
	arch/arm64/mm/mmu.c
	drivers/gpu/drm/drm_property.c
	drivers/hid/hid-core.c
	drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
	drivers/thermal/thermal_core.c
	drivers/usb/dwc3/core.c
	drivers/usb/host/xhci.c
	fs/f2fs/segment.c
	fs/f2fs/super.c
	include/linux/libfdt_env.h
	include/trace/events/sched.h
	kernel/locking/spinlock_debug.c
	kernel/sched/core.c
	kernel/time/hrtimer.c
	net/wireless/util.c

Change-Id: I39072f45a8dc42a7bbe29eb52ed48a15c028869c

Bruno Martins   commited 2020-02-09 12:03:23 +00:00
e046a7aad3
This is the 4.9.202 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAl3PwZYACgkQONu9yGCS
 aT55kxAAwZSJZIc+Ts3WCaICvRViAMghsC+34PL4kxZtUwmLgBPcTwQiWe4bAqeZ
 BMdMWp42IwFtQHSxYIq+0wMEmZj3L3SwMpKfW2GHKihOWAhi8BDGB3qeQB2lWfCP
 w3gG5RQ59xOt+q4SRa34p1dGzJqauPX+RUvVHs1J2b8pv8cciVkiRSLEAiyzxYqr
 aSSbPyuOxRzJhAfg1mZ/cIO++HCC5XrA20Aoa4+/Rjdg/UKpOCvuxITG8C365/JM
 ulJveY7Kq5uT6zrhN+HpdWq5I2ZQCIIZ0hYhk4oHwdmQCNBRqn5dMOgknFPkAzsY
 Os13401IHAj8Sfbn4M28H6ySqhdacXTYxDgtsQQxRvglg65ui1GdAJRwSC/H3m3M
 CziEs1TjS6/dBw0qtRaY32YlzWXAJouHR+5yVwTf3fTT+MaMjKzy9FGhABpEGtgl
 lQqGibQ2irHiao7VNNWUj0yNjN8QmofbtWBscsiJZcb7kb3p+VGdfDLgV19Tlhho
 hC9ZJs2YNHaPPR2KgkPxBFka8/X7xxWvxar7fFZvSnhQk1LAVhFtadnFcuYb8KLy
 VdGmM7D8DAEm+kA1K2ai/q4aaaxfwcWS5j7QJDXyj8ivvF//rAXddqOdwdkIuKAc
 vLhGmvktmodKxi0QG0G6pl/AePBZVU1W771jj41AGFzCj4gMxyM=
 =VUi+
 -----END PGP SIGNATURE-----

Merge 4.9.202 into android-4.9-q

Changes in 4.9.202
	kvm: mmu: Don't read PDPTEs when paging is not enabled
	Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto()
	MIPS: BCM63XX: fix switch core reset on BCM6368
	usb: gadget: core: unmap request from DMA only if previously mapped
	KVM: x86: use Intel speculation bugs and features as derived in generic x86 code
	x86/msr: Add the IA32_TSX_CTRL MSR
	x86/cpu: Add a helper function x86_read_arch_cap_msr()
	x86/cpu: Add a "tsx=" cmdline option with TSX disabled by default
	x86/speculation/taa: Add mitigation for TSX Async Abort
	x86/speculation/taa: Add sysfs reporting for TSX Async Abort
	kvm/x86: Export MDS_NO=0 to guests when TSX is enabled
	x86/tsx: Add "auto" option to the tsx= cmdline parameter
	x86/speculation/taa: Add documentation for TSX Async Abort
	x86/tsx: Add config options to set tsx=on|off|auto
	x86/speculation/taa: Fix printing of TAA_MSG_SMT on IBRS_ALL CPUs
	KVM: x86: simplify ept_misconfig
	KVM: x86: extend usage of RET_MMIO_PF_* constants
	kvm: Convert kvm_lock to a mutex
	kvm: x86: Do not release the page inside mmu_set_spte()
	KVM: x86: make FNAME(fetch) and __direct_map more similar
	KVM: x86: remove now unneeded hugepage gfn adjustment
	KVM: x86: change kvm_mmu_page_get_gfn BUG_ON to WARN_ON
	KVM: x86: Add is_executable_pte()
	KVM: x86: add tracepoints around __direct_map and FNAME(fetch)
	KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active
	x86/bugs: Add ITLB_MULTIHIT bug infrastructure
	cpu/speculation: Uninline and export CPU mitigations helpers
	kvm: mmu: ITLB_MULTIHIT mitigation
	kvm: Add helper function for creating VM worker threads
	kvm: x86: mmu: Recovery of shattered NX large pages
	Documentation: Add ITLB_MULTIHIT documentation
	Linux 4.9.202

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

Greg Kroah-Hartman   commited 2019-11-16 11:05:12 +01:00
258971b8e1
cpu/speculation: Uninline and export CPU mitigations helpers
commit 731dc9df975a5da21237a18c3384f811a7a41cc6 upstream.

A kernel module may need to check the value of the "mitigations=" kernel
command line parameter as part of its setup when the module needs
to perform software mitigations for a CPU flaw.

Uninline and export the helper functions surrounding the cpu_mitigations
enum to allow for their usage from a module.

Lastly, privatize the enum and cpu_mitigations variable since the value of
cpu_mitigations can be checked with the exported helper functions.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Tyler Hicks   authored and   Greg Kroah-Hartman   commited 2019-11-16 10:29:54 +01:00
e2bd0778ad
x86/bugs: Add ITLB_MULTIHIT bug infrastructure
commit db4d30fbb71b47e4ecb11c4efa5d8aad4b03dfae upstream.

Some processors may incur a machine check error possibly resulting in an
unrecoverable CPU lockup when an instruction fetch encounters a TLB
multi-hit in the instruction TLB. This can occur when the page size is
changed along with either the physical address or cache type. The relevant
erratum can be found here:

   https://bugzilla.kernel.org/show_bug.cgi?id=205195

There are other processors affected for which the erratum does not fully
disclose the impact.

This issue affects both bare-metal x86 page tables and EPT.

It can be mitigated by either eliminating the use of large pages or by
using careful TLB invalidations when changing the page size in the page
tables.

Just like Spectre, Meltdown, L1TF and MDS, a new bit has been allocated in
MSR_IA32_ARCH_CAPABILITIES (PSCHANGE_MC_NO) and will be set on CPUs which
are mitigated against this issue.

Signed-off-by: Vineela Tummalapalli <vineela.tummalapalli@intel.com>
Co-developed-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[bwh: Backported to 4.9:
 - No support for X86_VENDOR_HYGON, ATOM_AIRMONT_NP
 - Adjust context, indentation]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Vineela Tummalapalli   authored and   Greg Kroah-Hartman   commited 2019-11-16 10:29:54 +01:00
12ceedb760
x86/speculation/taa: Add sysfs reporting for TSX Async Abort
commit 6608b45ac5ecb56f9e171252229c39580cc85f0f upstream.

Add the sysfs reporting file for TSX Async Abort. It exposes the
vulnerability and the mitigation state similar to the existing files for
the other hardware vulnerabilities.

Sysfs file path is:
/sys/devices/system/cpu/vulnerabilities/tsx_async_abort

Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Neelima Krishnan <neelima.krishnan@intel.com>
Reviewed-by: Mark Gross <mgross@linux.intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Pawan Gupta   authored and   Greg Kroah-Hartman   commited 2019-11-16 10:29:43 +01:00
9392b2dda0
Merge android-4.9.181 (6ccab84) into msm-4.9
* refs/heads/tmp-6ccab84:
  Linux 4.9.181
  ethtool: check the return value of get_regs_len
  ipv4: Define __ipv4_neigh_lookup_noref when CONFIG_INET is disabled
  fuse: Add FOPEN_STREAM to use stream_open()
  fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
  TTY: serial_core, add ->install
  drm/i915: Fix I915_EXEC_RING_MASK
  drm/radeon: prefer lower reference dividers
  drm/gma500/cdv: Check vbt config bits when detecting lvds panels
  genwqe: Prevent an integer overflow in the ioctl
  Revert "MIPS: perf: ath79: Fix perfcount IRQ assignment"
  MIPS: pistachio: Build uImage.gz by default
  x86/power: Fix 'nosmt' vs hibernation triple fault during resume
  fuse: fallocate: fix return with locked inode
  parisc: Use implicit space register selection for loading the coherence index of I/O pdirs
  rcu: locking and unlocking need to always be at least barriers
  Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied"
  Revert "fib_rules: fix error in backport of e9919a24d302 ("fib_rules: return 0...")"
  ipv6: use READ_ONCE() for inet->hdrincl as in ipv4
  ipv6: fix EFAULT on sendto with icmpv6 and hdrincl
  pktgen: do not sleep with the thread lock held.
  net: rds: fix memory leak in rds_ib_flush_mr_pool
  net/mlx4_en: ethtool, Remove unsupported SFP EEPROM high pages query
  neighbor: Call __ipv4_neigh_lookup_noref in neigh_xmit
  ethtool: fix potential userspace buffer overflow
  media: uvcvideo: Fix uvc_alloc_entity() allocation alignment
  efi/libstub: Unify command line param parsing
  Revert "x86/build: Move _etext to actual end of .text"
  mm: make page ref count overflow check tighter and more explicit
  mm: prevent get_user_pages() from overflowing page refcount
  mm, gup: ensure real head page is ref-counted when using hugepages
  mm, gup: remove broken VM_BUG_ON_PAGE compound check for hugepages
  fs: prevent page refcount overflow in pipe_buf_get
  binder: replace "%p" with "%pK"
  binder: Replace "%p" with "%pK" for stable
  brcmfmac: add subtype check for event handling in data path
  brcmfmac: assure SSID length from firmware is limited
  brcmfmac: add length checks in scheduled scan result handler
  drm/vmwgfx: Don't send drm sysfs hotplug events on initial master set
  gcc-plugins: Fix build failures under Darwin host
  CIFS: cifs_read_allocate_pages: don't iterate through whole page array on ENOMEM
  staging: vc04_services: prevent integer overflow in create_pagelist()
  docs: Fix conf.py for Sphinx 2.0
  kernel/signal.c: trace_signal_deliver when signal_group_exit
  memcg: make it work on sparse non-0-node systems
  tty: max310x: Fix external crystal register setup
  tty: serial: msm_serial: Fix XON/XOFF
  drm/nouveau/i2c: Disable i2c bus access after ->fini()
  ALSA: hda/realtek - Set default power save node to 0
  powerpc/perf: Fix MMCRA corruption by bhrb_filter
  Btrfs: fix race updating log root item during fsync
  scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs)
  scsi: zfcp: fix missing zfcp_port reference put on -EBUSY from port_remove
  media: smsusb: better handle optional alignment
  media: usb: siano: Fix false-positive "uninitialized variable" warning
  media: usb: siano: Fix general protection fault in smsusb
  USB: rio500: fix memory leak in close after disconnect
  USB: rio500: refuse more than one device at a time
  USB: Add LPM quirk for Surface Dock GigE adapter
  USB: sisusbvga: fix oops in error path of sisusb_probe
  USB: Fix slab-out-of-bounds write in usb_get_bos_descriptor
  usbip: usbip_host: fix stub_dev lock context imbalance regression
  usbip: usbip_host: fix BUG: sleeping function called from invalid context
  usb: xhci: avoid null pointer deref when bos field is NULL
  xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()
  xhci: Use %zu for printing size_t type
  xhci: update bounce buffer with correct sg num
  include/linux/bitops.h: sanitize rotate primitives
  sparc64: Fix regression in non-hypervisor TLB flush xcall
  tipc: fix modprobe tipc failed after switch order of device registration
  Revert "tipc: fix modprobe tipc failed after switch order of device registration"
  xen/pciback: Don't disable PCI_COMMAND on PCI device reset.
  crypto: vmx - ghash: do nosimd fallback manually
  net: mvpp2: fix bad MVPP2_TXQ_SCHED_TOKEN_CNTR_REG queue value
  net: mvneta: Fix err code path of probe
  net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE_PORT
  ipv4/igmp: fix build error if !CONFIG_IP_MULTICAST
  ipv4/igmp: fix another memory leak in igmpv3_del_delrec()
  bnxt_en: Fix aggregation buffer leak under OOM condition.
  tipc: Avoid copying bytes beyond the supplied data
  usbnet: fix kernel crash after disconnect
  net: stmmac: fix reset gpio free missing
  net-gro: fix use-after-free read in napi_gro_frags()
  net: fec: fix the clk mismatch in failed_reset path
  llc: fix skb leak in llc_build_and_send_ui_pkt()
  ipv6: Consider sk_bound_dev_if when binding a raw socket to an address
  Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied"
  Revert "fib_rules: fix error in backport of e9919a24d302 ("fib_rules: return 0...")"
  Revert "x86/build: Move _etext to actual end of .text"

Change-Id: I0a273429558465e31453b6f46f4acc74c97d576a
Signed-off-by: jianzhou <jianzhou@codeaurora.org>

jianzhou   commited 2019-08-07 15:58:44 +08:00
555bd7ee98
Merge android-4.9.176 (e0625b3) into msm-4.9
* refs/heads/tmp-e0625b3:
  Linux 4.9.176
  x86/cpu/bugs: Use __initconst for 'const' init data
  x86: stop exporting msr-index.h to userland
  x86/speculation/mds: Fix documentation typo
  Documentation: Correct the possible MDS sysfs values
  x86/mds: Add MDSUM variant to the MDS documentation
  x86/speculation/mds: Add 'mitigations=' support for MDS
  x86/speculation: Support 'mitigations=' cmdline option
  cpu/speculation: Add 'mitigations=' cmdline option
  x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
  x86/speculation/mds: Fix comment
  x86/speculation/mds: Add SMT warning message
  x86/speculation: Move arch_smt_update() call to after mitigation decisions
  x86/speculation/mds: Add mds=full,nosmt cmdline option
  Documentation: Add MDS vulnerability documentation
  Documentation: Move L1TF to separate directory
  x86/speculation/mds: Add mitigation mode VMWERV
  x86/speculation/mds: Add sysfs reporting for MDS
  x86/speculation/mds: Add mitigation control for MDS
  x86/speculation/mds: Conditionally clear CPU buffers on idle entry
  x86/kvm/vmx: Add MDS protection when L1D Flush is not active
  x86/speculation/mds: Clear CPU buffers on exit to user
  x86/speculation/mds: Add mds_clear_cpu_buffers()
  x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
  x86/speculation/mds: Add BUG_MSBDS_ONLY
  x86/speculation/mds: Add basic bug infrastructure for MDS
  x86/speculation: Consolidate CPU whitelists
  x86/msr-index: Cleanup bit defines
  kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
  x86/speculation: Provide IBPB always command line options
  x86/speculation: Add seccomp Spectre v2 user space protection mode
  x86/speculation: Enable prctl mode for spectre_v2_user
  x86/speculation: Add prctl() control for indirect branch speculation
  x86/speculation: Prevent stale SPEC_CTRL msr content
  x86/speculation: Prepare arch_smt_update() for PRCTL mode
  x86/speculation: Split out TIF update
  x86/speculation: Prepare for conditional IBPB in switch_mm()
  x86/speculation: Avoid __switch_to_xtra() calls
  x86/process: Consolidate and simplify switch_to_xtra() code
  x86/speculation: Prepare for per task indirect branch speculation control
  x86/speculation: Add command line control for indirect branch speculation
  x86/speculation: Unify conditional spectre v2 print functions
  x86/speculataion: Mark command line parser data __initdata
  x86/speculation: Mark string arrays const correctly
  x86/speculation: Reorder the spec_v2 code
  x86/l1tf: Show actual SMT state
  x86/speculation: Rework SMT state change
  sched: Add sched_smt_active()
  x86/Kconfig: Select SCHED_SMT if SMP enabled
  x86/speculation: Reorganize speculation control MSRs update
  x86/speculation: Rename SSBD update functions
  x86/speculation: Disable STIBP when enhanced IBRS is in use
  x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common()
  x86/speculation: Remove unnecessary ret variable in cpu_show_common()
  x86/speculation: Clean up spectre_v2_parse_cmdline()
  x86/speculation: Update the TIF_SSBD comment
  x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off
  x86/speculation: Propagate information about RSB filling mitigation to sysfs
  x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
  x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
  Documentation/l1tf: Fix small spelling typo
  x86/cpu: Sanitize FAM6_ATOM naming
  x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation
  locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file
  x86/speculation: Simplify the CPU bug detection logic
  bitops: avoid integer overflow in GENMASK(_ULL)
  x86/mm: Use WRITE_ONCE() when setting PTEs
  x86/microcode: Update the new microcode revision unconditionally
  x86/microcode: Make sure boot_cpu_data.microcode is up-to-date
  x86/microcode/intel: Check microcode revision before updating sibling threads
  x86/microcode/intel: Add a helper which gives the microcode revision
  x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR
  x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features
  x86/bugs: Add AMD's SPEC_CTRL MSR usage
  x86/bugs: Add AMD's variant of SSB_NO
  x86/cpufeatures: Hide AMD-specific speculation flags
  x86/MCE: Save microcode revision in machine check records

Change-Id: Id09a1a4ec13f957e08f5ccf33ff00781d92d3316
Signed-off-by: jianzhou <jianzhou@codeaurora.org>

jianzhou   commited 2019-06-13 14:31:04 +08:00
4d2fd5d7f3
This is the 4.9.181 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAlz/gPoACgkQONu9yGCS
 aT7Hmw//VuPPksf6knKTYI4iJzlwVUAovkkxUVfb2iuj9nEipRp+KocWeGCBBBEf
 kirRIhQqhMRq8z21sfw6CSJvfAmWbWKOwrm47v4EcCCmklbFKW6CyV5lILXbavNr
 myQCn6dia9UOSPSUKodscrFeqVELnrH2UUODE4KgDMsI6SN3uRiBVws+hvfJlkhA
 4svLCn5gZ1VTUt+f2OVikNzDnLlcrF80WbeSwxxmTKwblyS5Spc2q3PQz4HVs27A
 B+3VvzAKj/y4vCWntbMPfKCmmQ67Qkiwrh9J0VinXOnf3bPmL2rxGrmZqeDec2z1
 fPonQL0Jhf6SGoIP4bbvpefnNA9xffSkvvF2kfk2QphdRoww2W2ELU6BYu/c9Tde
 ulJjGCJruiUcU91GinMCU3aNPoXhCnyhdG3g9A+U2DOHD68+XcogSshDNPvVvY6C
 Pz1P7Uak+FIxPEYhwUVBt5s5yvwgqWz3AVMMxF5beB5sMU78CUWY5Je+7ue/r2AA
 Np4Zt3QuJw03vnNELPyK/tlyUJxDUbjjskPHJrPztNkHI9LEhrHBnwjBl7I8jVlU
 H2pCToC9HcAXuCOkYV5QPbYl0xbTv0gqcDZ8ArjTaV/DefUBPrRxvA5gH+Zgfw0D
 bGWTIDUfGgDPJ+05yp8bu19f150BQ7m00Ho1J6yxDD3Xhm61DDE=
 =NUA4
 -----END PGP SIGNATURE-----

Merge 4.9.181 into android-4.9-q

Changes in 4.9.181
	ipv6: Consider sk_bound_dev_if when binding a raw socket to an address
	llc: fix skb leak in llc_build_and_send_ui_pkt()
	net: fec: fix the clk mismatch in failed_reset path
	net-gro: fix use-after-free read in napi_gro_frags()
	net: stmmac: fix reset gpio free missing
	usbnet: fix kernel crash after disconnect
	tipc: Avoid copying bytes beyond the supplied data
	bnxt_en: Fix aggregation buffer leak under OOM condition.
	ipv4/igmp: fix another memory leak in igmpv3_del_delrec()
	ipv4/igmp: fix build error if !CONFIG_IP_MULTICAST
	net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE_PORT
	net: mvneta: Fix err code path of probe
	net: mvpp2: fix bad MVPP2_TXQ_SCHED_TOKEN_CNTR_REG queue value
	crypto: vmx - ghash: do nosimd fallback manually
	xen/pciback: Don't disable PCI_COMMAND on PCI device reset.
	Revert "tipc: fix modprobe tipc failed after switch order of device registration"
	tipc: fix modprobe tipc failed after switch order of device registration
	sparc64: Fix regression in non-hypervisor TLB flush xcall
	include/linux/bitops.h: sanitize rotate primitives
	xhci: update bounce buffer with correct sg num
	xhci: Use %zu for printing size_t type
	xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()
	usb: xhci: avoid null pointer deref when bos field is NULL
	usbip: usbip_host: fix BUG: sleeping function called from invalid context
	usbip: usbip_host: fix stub_dev lock context imbalance regression
	USB: Fix slab-out-of-bounds write in usb_get_bos_descriptor
	USB: sisusbvga: fix oops in error path of sisusb_probe
	USB: Add LPM quirk for Surface Dock GigE adapter
	USB: rio500: refuse more than one device at a time
	USB: rio500: fix memory leak in close after disconnect
	media: usb: siano: Fix general protection fault in smsusb
	media: usb: siano: Fix false-positive "uninitialized variable" warning
	media: smsusb: better handle optional alignment
	scsi: zfcp: fix missing zfcp_port reference put on -EBUSY from port_remove
	scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs)
	Btrfs: fix race updating log root item during fsync
	powerpc/perf: Fix MMCRA corruption by bhrb_filter
	ALSA: hda/realtek - Set default power save node to 0
	drm/nouveau/i2c: Disable i2c bus access after ->fini()
	tty: serial: msm_serial: Fix XON/XOFF
	tty: max310x: Fix external crystal register setup
	memcg: make it work on sparse non-0-node systems
	kernel/signal.c: trace_signal_deliver when signal_group_exit
	docs: Fix conf.py for Sphinx 2.0
	staging: vc04_services: prevent integer overflow in create_pagelist()
	CIFS: cifs_read_allocate_pages: don't iterate through whole page array on ENOMEM
	gcc-plugins: Fix build failures under Darwin host
	drm/vmwgfx: Don't send drm sysfs hotplug events on initial master set
	brcmfmac: add length checks in scheduled scan result handler
	brcmfmac: assure SSID length from firmware is limited
	brcmfmac: add subtype check for event handling in data path
	binder: Replace "%p" with "%pK" for stable
	binder: replace "%p" with "%pK"
	fs: prevent page refcount overflow in pipe_buf_get
	mm, gup: remove broken VM_BUG_ON_PAGE compound check for hugepages
	mm, gup: ensure real head page is ref-counted when using hugepages
	mm: prevent get_user_pages() from overflowing page refcount
	mm: make page ref count overflow check tighter and more explicit
	Revert "x86/build: Move _etext to actual end of .text"
	efi/libstub: Unify command line param parsing
	media: uvcvideo: Fix uvc_alloc_entity() allocation alignment
	ethtool: fix potential userspace buffer overflow
	neighbor: Call __ipv4_neigh_lookup_noref in neigh_xmit
	net/mlx4_en: ethtool, Remove unsupported SFP EEPROM high pages query
	net: rds: fix memory leak in rds_ib_flush_mr_pool
	pktgen: do not sleep with the thread lock held.
	ipv6: fix EFAULT on sendto with icmpv6 and hdrincl
	ipv6: use READ_ONCE() for inet->hdrincl as in ipv4
	Revert "fib_rules: fix error in backport of e9919a24d302 ("fib_rules: return 0...")"
	Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied"
	rcu: locking and unlocking need to always be at least barriers
	parisc: Use implicit space register selection for loading the coherence index of I/O pdirs
	fuse: fallocate: fix return with locked inode
	x86/power: Fix 'nosmt' vs hibernation triple fault during resume
	MIPS: pistachio: Build uImage.gz by default
	Revert "MIPS: perf: ath79: Fix perfcount IRQ assignment"
	genwqe: Prevent an integer overflow in the ioctl
	drm/gma500/cdv: Check vbt config bits when detecting lvds panels
	drm/radeon: prefer lower reference dividers
	drm/i915: Fix I915_EXEC_RING_MASK
	TTY: serial_core, add ->install
	fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
	fuse: Add FOPEN_STREAM to use stream_open()
	ipv4: Define __ipv4_neigh_lookup_noref when CONFIG_INET is disabled
	ethtool: check the return value of get_regs_len
	Linux 4.9.181

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

Greg Kroah-Hartman   commited 2019-06-11 14:39:40 +02:00
77161ce013
This is the 4.9.181 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAlz/gPoACgkQONu9yGCS
 aT7Hmw//VuPPksf6knKTYI4iJzlwVUAovkkxUVfb2iuj9nEipRp+KocWeGCBBBEf
 kirRIhQqhMRq8z21sfw6CSJvfAmWbWKOwrm47v4EcCCmklbFKW6CyV5lILXbavNr
 myQCn6dia9UOSPSUKodscrFeqVELnrH2UUODE4KgDMsI6SN3uRiBVws+hvfJlkhA
 4svLCn5gZ1VTUt+f2OVikNzDnLlcrF80WbeSwxxmTKwblyS5Spc2q3PQz4HVs27A
 B+3VvzAKj/y4vCWntbMPfKCmmQ67Qkiwrh9J0VinXOnf3bPmL2rxGrmZqeDec2z1
 fPonQL0Jhf6SGoIP4bbvpefnNA9xffSkvvF2kfk2QphdRoww2W2ELU6BYu/c9Tde
 ulJjGCJruiUcU91GinMCU3aNPoXhCnyhdG3g9A+U2DOHD68+XcogSshDNPvVvY6C
 Pz1P7Uak+FIxPEYhwUVBt5s5yvwgqWz3AVMMxF5beB5sMU78CUWY5Je+7ue/r2AA
 Np4Zt3QuJw03vnNELPyK/tlyUJxDUbjjskPHJrPztNkHI9LEhrHBnwjBl7I8jVlU
 H2pCToC9HcAXuCOkYV5QPbYl0xbTv0gqcDZ8ArjTaV/DefUBPrRxvA5gH+Zgfw0D
 bGWTIDUfGgDPJ+05yp8bu19f150BQ7m00Ho1J6yxDD3Xhm61DDE=
 =NUA4
 -----END PGP SIGNATURE-----

Merge 4.9.181 into android-4.9

Changes in 4.9.181
	ipv6: Consider sk_bound_dev_if when binding a raw socket to an address
	llc: fix skb leak in llc_build_and_send_ui_pkt()
	net: fec: fix the clk mismatch in failed_reset path
	net-gro: fix use-after-free read in napi_gro_frags()
	net: stmmac: fix reset gpio free missing
	usbnet: fix kernel crash after disconnect
	tipc: Avoid copying bytes beyond the supplied data
	bnxt_en: Fix aggregation buffer leak under OOM condition.
	ipv4/igmp: fix another memory leak in igmpv3_del_delrec()
	ipv4/igmp: fix build error if !CONFIG_IP_MULTICAST
	net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE_PORT
	net: mvneta: Fix err code path of probe
	net: mvpp2: fix bad MVPP2_TXQ_SCHED_TOKEN_CNTR_REG queue value
	crypto: vmx - ghash: do nosimd fallback manually
	xen/pciback: Don't disable PCI_COMMAND on PCI device reset.
	Revert "tipc: fix modprobe tipc failed after switch order of device registration"
	tipc: fix modprobe tipc failed after switch order of device registration
	sparc64: Fix regression in non-hypervisor TLB flush xcall
	include/linux/bitops.h: sanitize rotate primitives
	xhci: update bounce buffer with correct sg num
	xhci: Use %zu for printing size_t type
	xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()
	usb: xhci: avoid null pointer deref when bos field is NULL
	usbip: usbip_host: fix BUG: sleeping function called from invalid context
	usbip: usbip_host: fix stub_dev lock context imbalance regression
	USB: Fix slab-out-of-bounds write in usb_get_bos_descriptor
	USB: sisusbvga: fix oops in error path of sisusb_probe
	USB: Add LPM quirk for Surface Dock GigE adapter
	USB: rio500: refuse more than one device at a time
	USB: rio500: fix memory leak in close after disconnect
	media: usb: siano: Fix general protection fault in smsusb
	media: usb: siano: Fix false-positive "uninitialized variable" warning
	media: smsusb: better handle optional alignment
	scsi: zfcp: fix missing zfcp_port reference put on -EBUSY from port_remove
	scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs)
	Btrfs: fix race updating log root item during fsync
	powerpc/perf: Fix MMCRA corruption by bhrb_filter
	ALSA: hda/realtek - Set default power save node to 0
	drm/nouveau/i2c: Disable i2c bus access after ->fini()
	tty: serial: msm_serial: Fix XON/XOFF
	tty: max310x: Fix external crystal register setup
	memcg: make it work on sparse non-0-node systems
	kernel/signal.c: trace_signal_deliver when signal_group_exit
	docs: Fix conf.py for Sphinx 2.0
	staging: vc04_services: prevent integer overflow in create_pagelist()
	CIFS: cifs_read_allocate_pages: don't iterate through whole page array on ENOMEM
	gcc-plugins: Fix build failures under Darwin host
	drm/vmwgfx: Don't send drm sysfs hotplug events on initial master set
	brcmfmac: add length checks in scheduled scan result handler
	brcmfmac: assure SSID length from firmware is limited
	brcmfmac: add subtype check for event handling in data path
	binder: Replace "%p" with "%pK" for stable
	binder: replace "%p" with "%pK"
	fs: prevent page refcount overflow in pipe_buf_get
	mm, gup: remove broken VM_BUG_ON_PAGE compound check for hugepages
	mm, gup: ensure real head page is ref-counted when using hugepages
	mm: prevent get_user_pages() from overflowing page refcount
	mm: make page ref count overflow check tighter and more explicit
	Revert "x86/build: Move _etext to actual end of .text"
	efi/libstub: Unify command line param parsing
	media: uvcvideo: Fix uvc_alloc_entity() allocation alignment
	ethtool: fix potential userspace buffer overflow
	neighbor: Call __ipv4_neigh_lookup_noref in neigh_xmit
	net/mlx4_en: ethtool, Remove unsupported SFP EEPROM high pages query
	net: rds: fix memory leak in rds_ib_flush_mr_pool
	pktgen: do not sleep with the thread lock held.
	ipv6: fix EFAULT on sendto with icmpv6 and hdrincl
	ipv6: use READ_ONCE() for inet->hdrincl as in ipv4
	Revert "fib_rules: fix error in backport of e9919a24d302 ("fib_rules: return 0...")"
	Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied"
	rcu: locking and unlocking need to always be at least barriers
	parisc: Use implicit space register selection for loading the coherence index of I/O pdirs
	fuse: fallocate: fix return with locked inode
	x86/power: Fix 'nosmt' vs hibernation triple fault during resume
	MIPS: pistachio: Build uImage.gz by default
	Revert "MIPS: perf: ath79: Fix perfcount IRQ assignment"
	genwqe: Prevent an integer overflow in the ioctl
	drm/gma500/cdv: Check vbt config bits when detecting lvds panels
	drm/radeon: prefer lower reference dividers
	drm/i915: Fix I915_EXEC_RING_MASK
	TTY: serial_core, add ->install
	fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
	fuse: Add FOPEN_STREAM to use stream_open()
	ipv4: Define __ipv4_neigh_lookup_noref when CONFIG_INET is disabled
	ethtool: check the return value of get_regs_len
	Linux 4.9.181

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

Greg Kroah-Hartman   commited 2019-06-11 13:54:30 +02:00
6ccab84548
x86/power: Fix 'nosmt' vs hibernation triple fault during resume
commit ec527c318036a65a083ef68d8ba95789d2212246 upstream.

As explained in

	0cc3cd21657b ("cpu/hotplug: Boot HT siblings at least once")

we always, no matter what, have to bring up x86 HT siblings during boot at
least once in order to avoid first MCE bringing the system to its knees.

That means that whenever 'nosmt' is supplied on the kernel command-line,
all the HT siblings are as a result sitting in mwait or cpudile after
going through the online-offline cycle at least once.

This causes a serious issue though when a kernel, which saw 'nosmt' on its
commandline, is going to perform resume from hibernation: if the resume
from the hibernated image is successful, cr3 is flipped in order to point
to the address space of the kernel that is being resumed, which in turn
means that all the HT siblings are all of a sudden mwaiting on address
which is no longer valid.

That results in triple fault shortly after cr3 is switched, and machine
reboots.

Fix this by always waking up all the SMT siblings before initiating the
'restore from hibernation' process; this guarantees that all the HT
siblings will be properly carried over to the resumed kernel waiting in
resume_play_dead(), and acted upon accordingly afterwards, based on the
target kernel configuration.

Symmetricaly, the resumed kernel has to push the SMT siblings to mwait
again in case it has SMT disabled; this means it has to online all
the siblings when resuming (so that they come out of hlt) and offline
them again to let them reach mwait.

Cc: 4.19+ <stable@vger.kernel.org> # v4.19+
Debugged-by: Thomas Gleixner <tglx@linutronix.de>
Fixes: 0cc3cd21657b ("cpu/hotplug: Boot HT siblings at least once")
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Jiri Kosina   authored and   Greg Kroah-Hartman   commited 2019-06-11 12:22:48 +02:00
5bdc536ce6
This is the 4.9.176 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAlza+K4ACgkQONu9yGCS
 aT7iOQ//fGjAW4YSzJitHs+vtPLFUuwNA2DseS2+pBscx80MWQCDadzNq2/LPNBl
 ZwVCJ7YfUG53sK6rdgivoTwl8r+509uq8Kp18VdhaTTQxbVZaOEGqKjRiQ/Dh/JF
 utb1BAdHoVw6gwzK/4miRYGXhJvn8VbTi5WfK58wngb8O7MbT3ZkVV64UrVXVTNP
 N5/+6OcNepqT2CEbS+Ls66h8LFW1YPQskX6Z+ydAEYjOFKL29mxaU41FvoSJj3BV
 4jHNfpfaNStBfOMyu69bgvv9u5QFBl2vMpsPbJEap8MfSNM3+Q5wvqek7z0lDYkL
 vR8KBqMK0jOl4CmNdmV6eLryimtjhuRubaPcTCxCOgHS7Iy/oHFMof8nYmMXs1BV
 yBAjKQ1xdMUVR2dOFtohJW7Tny5Z/tESjIdtmR93qUHaNQQvP3yR8Pi+bL4eH+zJ
 Eui4xTspC6aAQlV6tbwL5bBmboMfy9hZQOuv4UG5gRWuGNdTURTzW7KXE3bhvz70
 RLl4V2UVXzfV+J4DF7/e/U1OeudlJtBhySF5LhkEJq/qhxurj9qchG+XURq5mgjX
 L0iToJ0iJiD0JfJ5LUIyOMrEyWnWaTNt7OwO2pD6EP82KiayMAgIG7NJcmvmPmb+
 /1yHpCgcdHFQGplRQ/Pa9KLEf9ctfpxvNTbDW/HSxx9IU3D3Euk=
 =Tq4Y
 -----END PGP SIGNATURE-----

Merge 4.9.176 into android-4.9-q

Changes in 4.9.176
	x86/MCE: Save microcode revision in machine check records
	x86/cpufeatures: Hide AMD-specific speculation flags
	x86/bugs: Add AMD's variant of SSB_NO
	x86/bugs: Add AMD's SPEC_CTRL MSR usage
	x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features
	x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR
	x86/microcode/intel: Add a helper which gives the microcode revision
	x86/microcode/intel: Check microcode revision before updating sibling threads
	x86/microcode: Make sure boot_cpu_data.microcode is up-to-date
	x86/microcode: Update the new microcode revision unconditionally
	x86/mm: Use WRITE_ONCE() when setting PTEs
	bitops: avoid integer overflow in GENMASK(_ULL)
	x86/speculation: Simplify the CPU bug detection logic
	locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file
	x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation
	x86/cpu: Sanitize FAM6_ATOM naming
	Documentation/l1tf: Fix small spelling typo
	x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
	x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
	x86/speculation: Propagate information about RSB filling mitigation to sysfs
	x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off
	x86/speculation: Update the TIF_SSBD comment
	x86/speculation: Clean up spectre_v2_parse_cmdline()
	x86/speculation: Remove unnecessary ret variable in cpu_show_common()
	x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common()
	x86/speculation: Disable STIBP when enhanced IBRS is in use
	x86/speculation: Rename SSBD update functions
	x86/speculation: Reorganize speculation control MSRs update
	x86/Kconfig: Select SCHED_SMT if SMP enabled
	sched: Add sched_smt_active()
	x86/speculation: Rework SMT state change
	x86/l1tf: Show actual SMT state
	x86/speculation: Reorder the spec_v2 code
	x86/speculation: Mark string arrays const correctly
	x86/speculataion: Mark command line parser data __initdata
	x86/speculation: Unify conditional spectre v2 print functions
	x86/speculation: Add command line control for indirect branch speculation
	x86/speculation: Prepare for per task indirect branch speculation control
	x86/process: Consolidate and simplify switch_to_xtra() code
	x86/speculation: Avoid __switch_to_xtra() calls
	x86/speculation: Prepare for conditional IBPB in switch_mm()
	x86/speculation: Split out TIF update
	x86/speculation: Prepare arch_smt_update() for PRCTL mode
	x86/speculation: Prevent stale SPEC_CTRL msr content
	x86/speculation: Add prctl() control for indirect branch speculation
	x86/speculation: Enable prctl mode for spectre_v2_user
	x86/speculation: Add seccomp Spectre v2 user space protection mode
	x86/speculation: Provide IBPB always command line options
	kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
	x86/msr-index: Cleanup bit defines
	x86/speculation: Consolidate CPU whitelists
	x86/speculation/mds: Add basic bug infrastructure for MDS
	x86/speculation/mds: Add BUG_MSBDS_ONLY
	x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
	x86/speculation/mds: Add mds_clear_cpu_buffers()
	x86/speculation/mds: Clear CPU buffers on exit to user
	x86/kvm/vmx: Add MDS protection when L1D Flush is not active
	x86/speculation/mds: Conditionally clear CPU buffers on idle entry
	x86/speculation/mds: Add mitigation control for MDS
	x86/speculation/mds: Add sysfs reporting for MDS
	x86/speculation/mds: Add mitigation mode VMWERV
	Documentation: Move L1TF to separate directory
	Documentation: Add MDS vulnerability documentation
	x86/speculation/mds: Add mds=full,nosmt cmdline option
	x86/speculation: Move arch_smt_update() call to after mitigation decisions
	x86/speculation/mds: Add SMT warning message
	x86/speculation/mds: Fix comment
	x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
	cpu/speculation: Add 'mitigations=' cmdline option
	x86/speculation: Support 'mitigations=' cmdline option
	x86/speculation/mds: Add 'mitigations=' support for MDS
	x86/mds: Add MDSUM variant to the MDS documentation
	Documentation: Correct the possible MDS sysfs values
	x86/speculation/mds: Fix documentation typo
	x86: stop exporting msr-index.h to userland
	x86/cpu/bugs: Use __initconst for 'const' init data
	Linux 4.9.176

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

Greg Kroah-Hartman   commited 2019-05-14 21:04:42 +02:00
ef4a576d4b
This is the 4.9.176 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAlza+K4ACgkQONu9yGCS
 aT7iOQ//fGjAW4YSzJitHs+vtPLFUuwNA2DseS2+pBscx80MWQCDadzNq2/LPNBl
 ZwVCJ7YfUG53sK6rdgivoTwl8r+509uq8Kp18VdhaTTQxbVZaOEGqKjRiQ/Dh/JF
 utb1BAdHoVw6gwzK/4miRYGXhJvn8VbTi5WfK58wngb8O7MbT3ZkVV64UrVXVTNP
 N5/+6OcNepqT2CEbS+Ls66h8LFW1YPQskX6Z+ydAEYjOFKL29mxaU41FvoSJj3BV
 4jHNfpfaNStBfOMyu69bgvv9u5QFBl2vMpsPbJEap8MfSNM3+Q5wvqek7z0lDYkL
 vR8KBqMK0jOl4CmNdmV6eLryimtjhuRubaPcTCxCOgHS7Iy/oHFMof8nYmMXs1BV
 yBAjKQ1xdMUVR2dOFtohJW7Tny5Z/tESjIdtmR93qUHaNQQvP3yR8Pi+bL4eH+zJ
 Eui4xTspC6aAQlV6tbwL5bBmboMfy9hZQOuv4UG5gRWuGNdTURTzW7KXE3bhvz70
 RLl4V2UVXzfV+J4DF7/e/U1OeudlJtBhySF5LhkEJq/qhxurj9qchG+XURq5mgjX
 L0iToJ0iJiD0JfJ5LUIyOMrEyWnWaTNt7OwO2pD6EP82KiayMAgIG7NJcmvmPmb+
 /1yHpCgcdHFQGplRQ/Pa9KLEf9ctfpxvNTbDW/HSxx9IU3D3Euk=
 =Tq4Y
 -----END PGP SIGNATURE-----

Merge 4.9.176 into android-4.9

Changes in 4.9.176
	x86/MCE: Save microcode revision in machine check records
	x86/cpufeatures: Hide AMD-specific speculation flags
	x86/bugs: Add AMD's variant of SSB_NO
	x86/bugs: Add AMD's SPEC_CTRL MSR usage
	x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features
	x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR
	x86/microcode/intel: Add a helper which gives the microcode revision
	x86/microcode/intel: Check microcode revision before updating sibling threads
	x86/microcode: Make sure boot_cpu_data.microcode is up-to-date
	x86/microcode: Update the new microcode revision unconditionally
	x86/mm: Use WRITE_ONCE() when setting PTEs
	bitops: avoid integer overflow in GENMASK(_ULL)
	x86/speculation: Simplify the CPU bug detection logic
	locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file
	x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation
	x86/cpu: Sanitize FAM6_ATOM naming
	Documentation/l1tf: Fix small spelling typo
	x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
	x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
	x86/speculation: Propagate information about RSB filling mitigation to sysfs
	x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off
	x86/speculation: Update the TIF_SSBD comment
	x86/speculation: Clean up spectre_v2_parse_cmdline()
	x86/speculation: Remove unnecessary ret variable in cpu_show_common()
	x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common()
	x86/speculation: Disable STIBP when enhanced IBRS is in use
	x86/speculation: Rename SSBD update functions
	x86/speculation: Reorganize speculation control MSRs update
	x86/Kconfig: Select SCHED_SMT if SMP enabled
	sched: Add sched_smt_active()
	x86/speculation: Rework SMT state change
	x86/l1tf: Show actual SMT state
	x86/speculation: Reorder the spec_v2 code
	x86/speculation: Mark string arrays const correctly
	x86/speculataion: Mark command line parser data __initdata
	x86/speculation: Unify conditional spectre v2 print functions
	x86/speculation: Add command line control for indirect branch speculation
	x86/speculation: Prepare for per task indirect branch speculation control
	x86/process: Consolidate and simplify switch_to_xtra() code
	x86/speculation: Avoid __switch_to_xtra() calls
	x86/speculation: Prepare for conditional IBPB in switch_mm()
	x86/speculation: Split out TIF update
	x86/speculation: Prepare arch_smt_update() for PRCTL mode
	x86/speculation: Prevent stale SPEC_CTRL msr content
	x86/speculation: Add prctl() control for indirect branch speculation
	x86/speculation: Enable prctl mode for spectre_v2_user
	x86/speculation: Add seccomp Spectre v2 user space protection mode
	x86/speculation: Provide IBPB always command line options
	kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
	x86/msr-index: Cleanup bit defines
	x86/speculation: Consolidate CPU whitelists
	x86/speculation/mds: Add basic bug infrastructure for MDS
	x86/speculation/mds: Add BUG_MSBDS_ONLY
	x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
	x86/speculation/mds: Add mds_clear_cpu_buffers()
	x86/speculation/mds: Clear CPU buffers on exit to user
	x86/kvm/vmx: Add MDS protection when L1D Flush is not active
	x86/speculation/mds: Conditionally clear CPU buffers on idle entry
	x86/speculation/mds: Add mitigation control for MDS
	x86/speculation/mds: Add sysfs reporting for MDS
	x86/speculation/mds: Add mitigation mode VMWERV
	Documentation: Move L1TF to separate directory
	Documentation: Add MDS vulnerability documentation
	x86/speculation/mds: Add mds=full,nosmt cmdline option
	x86/speculation: Move arch_smt_update() call to after mitigation decisions
	x86/speculation/mds: Add SMT warning message
	x86/speculation/mds: Fix comment
	x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
	cpu/speculation: Add 'mitigations=' cmdline option
	x86/speculation: Support 'mitigations=' cmdline option
	x86/speculation/mds: Add 'mitigations=' support for MDS
	x86/mds: Add MDSUM variant to the MDS documentation
	Documentation: Correct the possible MDS sysfs values
	x86/speculation/mds: Fix documentation typo
	x86: stop exporting msr-index.h to userland
	x86/cpu/bugs: Use __initconst for 'const' init data
	Linux 4.9.176

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

Greg Kroah-Hartman   commited 2019-05-14 20:43:04 +02:00
e0625b31fd
cpu/speculation: Add 'mitigations=' cmdline option
commit 98af8452945c55652de68536afdde3b520fec429 upstream.

Keeping track of the number of mitigations for all the CPU speculation
bugs has become overwhelming for many users.  It's getting more and more
complicated to decide which mitigations are needed for a given
architecture.  Complicating matters is the fact that each arch tends to
have its own custom way to mitigate the same vulnerability.

Most users fall into a few basic categories:

a) they want all mitigations off;

b) they want all reasonable mitigations on, with SMT enabled even if
   it's vulnerable; or

c) they want all reasonable mitigations on, with SMT disabled if
   vulnerable.

Define a set of curated, arch-independent options, each of which is an
aggregation of existing options:

- mitigations=off: Disable all mitigations.

- mitigations=auto: [default] Enable all the default mitigations, but
  leave SMT enabled, even if it's vulnerable.

- mitigations=auto,nosmt: Enable all the default mitigations, disabling
  SMT if needed by a mitigation.

Currently, these options are placeholders which don't actually do
anything.  They will be fleshed out in upcoming patches.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jiri Kosina <jkosina@suse.cz> (on x86)
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Waiman Long <longman@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-arch@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Steven Price <steven.price@arm.com>
Cc: Phil Auld <pauld@redhat.com>
Link: https://lkml.kernel.org/r/b07a8ef9b7c5055c3a4637c87d07c296d5016fe0.1555085500.git.jpoimboe@redhat.com
[bwh: Backported to 4.9: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Josh Poimboeuf   authored and   Greg Kroah-Hartman   commited 2019-05-14 19:19:41 +02:00
edda9c3893
x86/speculation/mds: Add sysfs reporting for MDS
commit 8a4b06d391b0a42a373808979b5028f5c84d9c6a upstream.

Add the sysfs reporting file for MDS. It exposes the vulnerability and
mitigation state similar to the existing files for the other speculative
hardware vulnerabilities.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Jon Masters <jcm@redhat.com>
Tested-by: Jon Masters <jcm@redhat.com>
[bwh: Backported to 4.9: test x86_hyper instead of using hypervisor_is_type()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Thomas Gleixner   authored and   Greg Kroah-Hartman   commited 2019-05-14 19:19:40 +02:00
ba08d562b0
Merge android-4.9.120 (f85543b) into msm-4.9
* refs/heads/tmp-f85543b:
  Linux 4.9.120
  x86/CPU/AMD: Have smp_num_siblings and cpu_llc_id always be present
  x86/cpu/amd: Limit cpu_core_id fixup to families older than F17h
  x86/speculation/l1tf: Unbreak !__HAVE_ARCH_PFN_MODIFY_ALLOWED architectures
  x86/init: fix build with CONFIG_SWAP=n
  cpu/hotplug: Non-SMP machines do not make use of booted_once
  x86/smp: fix non-SMP broken build due to redefinition of apic_id_is_primary_thread
  x86/microcode: Allow late microcode loading with SMT disabled
  x86/microcode: Do not upload microcode if CPUs are offline
  tools headers: Synchronise x86 cpufeatures.h for L1TF additions
  x86/mm/kmmio: Make the tracer robust against L1TF
  x86/mm/pat: Make set_memory_np() L1TF safe
  x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert
  x86/speculation/l1tf: Invert all not present mappings
  cpu/hotplug: Fix SMT supported evaluation
  KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry
  x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry
  x86/speculation: Simplify sysfs report of VMX L1TF vulnerability
  KVM: VMX: support MSR_IA32_ARCH_CAPABILITIES as a feature MSR
  KVM: X86: Allow userspace to define the microcode version
  KVM: X86: Introduce kvm_get_msr_feature()
  KVM: SVM: Add MSR-based feature support for serializing LFENCE
  KVM: x86: Add a framework for supporting MSR-based features
  Documentation/l1tf: Remove Yonah processors from not vulnerable list
  x86/KVM/VMX: Don't set l1tf_flush_l1d from vmx_handle_external_intr()
  x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d
  x86: Don't include linux/irq.h from asm/hardirq.h
  x86/KVM/VMX: Introduce per-host-cpu analogue of l1tf_flush_l1d
  x86/irq: Demote irq_cpustat_t::__softirq_pending to u16
  x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush()
  x86/KVM/VMX: Replace 'vmx_l1d_flush_always' with 'vmx_l1d_flush_cond'
  x86/KVM/VMX: Don't set l1tf_flush_l1d to true from vmx_l1d_flush()
  cpu/hotplug: detect SMT disabled by BIOS
  Documentation/l1tf: Fix typos
  x86/KVM/VMX: Initialize the vmx_l1d_flush_pages' content
  Documentation: Add section about CPU vulnerabilities
  x86/bugs, kvm: Introduce boot-time control of L1TF mitigations
  cpu/hotplug: Set CPU_SMT_NOT_SUPPORTED early
  cpu/hotplug: Expose SMT control init function
  x86/kvm: Allow runtime control of L1D flush
  x86/kvm: Serialize L1D flush parameter setter
  x86/kvm: Add static key for flush always
  x86/kvm: Move l1tf setup function
  x86/l1tf: Handle EPT disabled state proper
  x86/kvm: Drop L1TF MSR list approach
  x86/litf: Introduce vmx status variable
  cpu/hotplug: Online siblings when SMT control is turned on
  x86/KVM/VMX: Use MSR save list for IA32_FLUSH_CMD if required
  x86/KVM/VMX: Extend add_atomic_switch_msr() to allow VMENTER only MSRs
  x86/KVM/VMX: Separate the VMX AUTOLOAD guest/host number accounting
  x86/KVM/VMX: Add find_msr() helper function
  x86/KVM/VMX: Split the VMX MSR LOAD structures to have an host/guest numbers
  kvm: nVMX: Update MSR load counts on a VMCS switch
  x86/KVM/VMX: Add L1D flush logic
  x86/KVM/VMX: Add L1D MSR based flush
  x86/KVM/VMX: Add L1D flush algorithm
  x86/KVM/VMX: Add module argument for L1TF mitigation
  x86/KVM: Warn user if KVM is loaded SMT and L1TF CPU bug being present
  cpu/hotplug: Boot HT siblings at least once
  Revert "x86/apic: Ignore secondary threads if nosmt=force"
  x86/speculation/l1tf: Fix up pte->pfn conversion for PAE
  x86/speculation/l1tf: Protect PAE swap entries against L1TF
  x86/CPU/AMD: Move TOPOEXT reenablement before reading smp_num_siblings
  x86/cpufeatures: Add detection of L1D cache flush support.
  x86/speculation/l1tf: Extend 64bit swap file size limit
  x86/apic: Ignore secondary threads if nosmt=force
  x86/cpu/AMD: Evaluate smp_num_siblings early
  x86/CPU/AMD: Do not check CPUID max ext level before parsing SMP info
  x86/cpu/intel: Evaluate smp_num_siblings early
  x86/cpu/topology: Provide detect_extended_topology_early()
  x86/cpu/common: Provide detect_ht_early()
  x86/cpu/AMD: Remove the pointless detect_ht() call
  x86/cpu: Remove the pointless CPU printout
  cpu/hotplug: Provide knobs to control SMT
  cpu/hotplug: Split do_cpu_down()
  cpu/hotplug: Make bringup/teardown of smp threads symmetric
  x86/topology: Provide topology_smt_supported()
  x86/smp: Provide topology_is_primary_thread()
  x86/bugs: Move the l1tf function and define pr_fmt properly
  x86/speculation/l1tf: Limit swap file size to MAX_PA/2
  x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings
  x86/speculation/l1tf: Add sysfs reporting for l1tf
  x86/speculation/l1tf: Make sure the first page is always reserved
  x86/speculation/l1tf: Protect PROT_NONE PTEs against speculation
  x86/speculation/l1tf: Protect swap entries against L1TF
  x86/speculation/l1tf: Change order of offset/type in swap entry
  mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1
  x86/speculation/l1tf: Increase 32bit PAE __PHYSICAL_PAGE_SHIFT
  x86/irqflags: Provide a declaration for native_save_fl
  kprobes/x86: Fix %p uses in error messages
  x86/speculation: Protect against userspace-userspace spectreRSB
  x86/paravirt: Fix spectre-v2 mitigations for paravirt guests
  ARM: dts: imx6sx: fix irq for pcie bridge
  IB/ocrdma: fix out of bounds access to local buffer
  mtd: nand: qcom: Add a NULL check for devm_kasprintf()
  IB/mlx4: Mark user MR as writable if actual virtual memory is writable
  IB/core: Make testing MR flags for writability a static inline function
  proc: Fix proc_sys_prune_dcache to hold a sb reference
  proc/sysctl: Don't grab i_lock under sysctl_lock.
  proc/sysctl: prune stale dentries during unregistering
  fix __legitimize_mnt()/mntput() race
  fix mntput/mntput race
  make sure that __dentry_kill() always invalidates d_seq, unhashed or not
  root dentries need RCU-delayed freeing
  init: rename and re-order boot_cpu_state_init()
  scsi: sr: Avoid that opening a CD-ROM hangs with runtime power management enabled
  ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices
  xen/netfront: don't cache skb_shinfo()
  Mark HI and TASKLET softirq synchronous
  kasan: add no_sanitize attribute for clang builds
  parisc: Define mb() and add memory barriers to assembler unlock sequences
  parisc: Enable CONFIG_MLONGCALLS by default
  tpm: fix race condition in tpm_common_write()
  ext4: fix check to prevent initializing reserved inodes
  ANDROID: AVB error handler to invalidate vbmeta partition.

Conflicts:
	include/linux/swapfile.h
	kernel/smp.c
	kernel/softirq.c

Change-Id: Ied9792f455e336bf7e3bdcf9a6c21f7a212b6db6
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
Signed-off-by: Minming Qi <mqi@codeaurora.org>

Minming Qi   commited 2018-10-31 17:25:20 +08:00
a3ab5da4eb
This is the 4.9.120 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAlt0UY8ACgkQONu9yGCS
 aT7S6hAAlsHMdJgnhCQ06Ec1ld1b3Q7tehn+xVFgWAPyHm/L3koM/78IMjo7ZYCV
 IxiIQyQ+JCn9DXQb2nqeEFgo8DYo83KvBkIgI+GQZHuVp+Dp9AvQLV8Bm3CQwiCY
 LPlP1sWs0xRZxovazMJ5MLsAOf9hZVkpwWoQHrEQMlUHpKYwf6GRBteZ6C3evZ4G
 lPo5N986h2YDYA3FLA2h5EeFS2H39bgbnepJ6/4/cYBpDy443X3TrV6UZjDDhHST
 6XYPuqoApz+QIk2x2FfhVbZUb8WtPJNg/6IunOhlaUH/WCEN05lQ2x0jXAA4jOV/
 Z2QyGnqsD8hMleDeakzo+yggaECkK2n+b6SicmomXWj7ILmBCrAIG0dOtPksmAaw
 JP9mOKz5b87N2GOShSvj9LXuFOIO7TVvwFZCo4oYxkaW6ROxSO7Ffkiv8I6imMn5
 zPGSBG4Pr9eQfeO+IK2JAxrULICcFbh57XXEP5x7MH78yRw4hG++BtWg62pI7TQl
 l3zZ/eY8wKjTlNQbFkSAPenMypPic6w5NRA9tHST5XrwZkF0nzMWDz/1mAgOH5jx
 XVTK3kZabKAf3YQ2/2nAnUvDM4BsM1SwUxTfc1CNQHIl24G7Y3Z4Vxlfj5orNEQ+
 Y5OPKDatNi8gWBecDLNITih7h+WlRn1UKR/v4f8TPV0gyGhn2Vc=
 =peDG
 -----END PGP SIGNATURE-----

Merge 4.9.120 into android-4.9

Changes in 4.9.120
	ext4: fix check to prevent initializing reserved inodes
	tpm: fix race condition in tpm_common_write()
	parisc: Enable CONFIG_MLONGCALLS by default
	parisc: Define mb() and add memory barriers to assembler unlock sequences
	kasan: add no_sanitize attribute for clang builds
	Mark HI and TASKLET softirq synchronous
	xen/netfront: don't cache skb_shinfo()
	ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices
	scsi: sr: Avoid that opening a CD-ROM hangs with runtime power management enabled
	init: rename and re-order boot_cpu_state_init()
	root dentries need RCU-delayed freeing
	make sure that __dentry_kill() always invalidates d_seq, unhashed or not
	fix mntput/mntput race
	fix __legitimize_mnt()/mntput() race
	proc/sysctl: prune stale dentries during unregistering
	proc/sysctl: Don't grab i_lock under sysctl_lock.
	proc: Fix proc_sys_prune_dcache to hold a sb reference
	IB/core: Make testing MR flags for writability a static inline function
	IB/mlx4: Mark user MR as writable if actual virtual memory is writable
	mtd: nand: qcom: Add a NULL check for devm_kasprintf()
	IB/ocrdma: fix out of bounds access to local buffer
	ARM: dts: imx6sx: fix irq for pcie bridge
	x86/paravirt: Fix spectre-v2 mitigations for paravirt guests
	x86/speculation: Protect against userspace-userspace spectreRSB
	kprobes/x86: Fix %p uses in error messages
	x86/irqflags: Provide a declaration for native_save_fl
	x86/speculation/l1tf: Increase 32bit PAE __PHYSICAL_PAGE_SHIFT
	mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1
	x86/speculation/l1tf: Change order of offset/type in swap entry
	x86/speculation/l1tf: Protect swap entries against L1TF
	x86/speculation/l1tf: Protect PROT_NONE PTEs against speculation
	x86/speculation/l1tf: Make sure the first page is always reserved
	x86/speculation/l1tf: Add sysfs reporting for l1tf
	x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings
	x86/speculation/l1tf: Limit swap file size to MAX_PA/2
	x86/bugs: Move the l1tf function and define pr_fmt properly
	x86/smp: Provide topology_is_primary_thread()
	x86/topology: Provide topology_smt_supported()
	cpu/hotplug: Make bringup/teardown of smp threads symmetric
	cpu/hotplug: Split do_cpu_down()
	cpu/hotplug: Provide knobs to control SMT
	x86/cpu: Remove the pointless CPU printout
	x86/cpu/AMD: Remove the pointless detect_ht() call
	x86/cpu/common: Provide detect_ht_early()
	x86/cpu/topology: Provide detect_extended_topology_early()
	x86/cpu/intel: Evaluate smp_num_siblings early
	x86/CPU/AMD: Do not check CPUID max ext level before parsing SMP info
	x86/cpu/AMD: Evaluate smp_num_siblings early
	x86/apic: Ignore secondary threads if nosmt=force
	x86/speculation/l1tf: Extend 64bit swap file size limit
	x86/cpufeatures: Add detection of L1D cache flush support.
	x86/CPU/AMD: Move TOPOEXT reenablement before reading smp_num_siblings
	x86/speculation/l1tf: Protect PAE swap entries against L1TF
	x86/speculation/l1tf: Fix up pte->pfn conversion for PAE
	Revert "x86/apic: Ignore secondary threads if nosmt=force"
	cpu/hotplug: Boot HT siblings at least once
	x86/KVM: Warn user if KVM is loaded SMT and L1TF CPU bug being present
	x86/KVM/VMX: Add module argument for L1TF mitigation
	x86/KVM/VMX: Add L1D flush algorithm
	x86/KVM/VMX: Add L1D MSR based flush
	x86/KVM/VMX: Add L1D flush logic
	kvm: nVMX: Update MSR load counts on a VMCS switch
	x86/KVM/VMX: Split the VMX MSR LOAD structures to have an host/guest numbers
	x86/KVM/VMX: Add find_msr() helper function
	x86/KVM/VMX: Separate the VMX AUTOLOAD guest/host number accounting
	x86/KVM/VMX: Extend add_atomic_switch_msr() to allow VMENTER only MSRs
	x86/KVM/VMX: Use MSR save list for IA32_FLUSH_CMD if required
	cpu/hotplug: Online siblings when SMT control is turned on
	x86/litf: Introduce vmx status variable
	x86/kvm: Drop L1TF MSR list approach
	x86/l1tf: Handle EPT disabled state proper
	x86/kvm: Move l1tf setup function
	x86/kvm: Add static key for flush always
	x86/kvm: Serialize L1D flush parameter setter
	x86/kvm: Allow runtime control of L1D flush
	cpu/hotplug: Expose SMT control init function
	cpu/hotplug: Set CPU_SMT_NOT_SUPPORTED early
	x86/bugs, kvm: Introduce boot-time control of L1TF mitigations
	Documentation: Add section about CPU vulnerabilities
	x86/KVM/VMX: Initialize the vmx_l1d_flush_pages' content
	Documentation/l1tf: Fix typos
	cpu/hotplug: detect SMT disabled by BIOS
	x86/KVM/VMX: Don't set l1tf_flush_l1d to true from vmx_l1d_flush()
	x86/KVM/VMX: Replace 'vmx_l1d_flush_always' with 'vmx_l1d_flush_cond'
	x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush()
	x86/irq: Demote irq_cpustat_t::__softirq_pending to u16
	x86/KVM/VMX: Introduce per-host-cpu analogue of l1tf_flush_l1d
	x86: Don't include linux/irq.h from asm/hardirq.h
	x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d
	x86/KVM/VMX: Don't set l1tf_flush_l1d from vmx_handle_external_intr()
	Documentation/l1tf: Remove Yonah processors from not vulnerable list
	KVM: x86: Add a framework for supporting MSR-based features
	KVM: SVM: Add MSR-based feature support for serializing LFENCE
	KVM: X86: Introduce kvm_get_msr_feature()
	KVM: X86: Allow userspace to define the microcode version
	KVM: VMX: support MSR_IA32_ARCH_CAPABILITIES as a feature MSR
	x86/speculation: Simplify sysfs report of VMX L1TF vulnerability
	x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry
	KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry
	cpu/hotplug: Fix SMT supported evaluation
	x86/speculation/l1tf: Invert all not present mappings
	x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert
	x86/mm/pat: Make set_memory_np() L1TF safe
	x86/mm/kmmio: Make the tracer robust against L1TF
	tools headers: Synchronise x86 cpufeatures.h for L1TF additions
	x86/microcode: Do not upload microcode if CPUs are offline
	x86/microcode: Allow late microcode loading with SMT disabled
	x86/smp: fix non-SMP broken build due to redefinition of apic_id_is_primary_thread
	cpu/hotplug: Non-SMP machines do not make use of booted_once
	x86/init: fix build with CONFIG_SWAP=n
	x86/speculation/l1tf: Unbreak !__HAVE_ARCH_PFN_MODIFY_ALLOWED architectures
	x86/cpu/amd: Limit cpu_core_id fixup to families older than F17h
	x86/CPU/AMD: Have smp_num_siblings and cpu_llc_id always be present
	Linux 4.9.120

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

Greg Kroah-Hartman   commited 2018-08-15 18:30:15 +02:00
f85543ba3c
cpu/hotplug: Fix SMT supported evaluation
commit bc2d8d262cba5736332cbc866acb11b1c5748aa9 upstream

Josh reported that the late SMT evaluation in cpu_smt_state_init() sets
cpu_smt_control to CPU_SMT_NOT_SUPPORTED in case that 'nosmt' was supplied
on the kernel command line as it cannot differentiate between SMT disabled
by BIOS and SMT soft disable via 'nosmt'. That wreckages the state and
makes the sysfs interface unusable.

Rework this so that during bringup of the non boot CPUs the availability of
SMT is determined in cpu_smt_allowed(). If a newly booted CPU is not a
'primary' thread then set the local cpu_smt_available marker and evaluate
this explicitely right after the initial SMP bringup has finished.

SMT evaulation on x86 is a trainwreck as the firmware has all the
information _before_ booting the kernel, but there is no interface to query
it.

Fixes: 73d5e2b47264 ("cpu/hotplug: detect SMT disabled by BIOS")
Reported-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Thomas Gleixner   authored and   Greg Kroah-Hartman   commited 2018-08-15 18:14:53 +02:00
c504b9fce7
cpu/hotplug: Set CPU_SMT_NOT_SUPPORTED early
commit fee0aede6f4739c87179eca76136f83210953b86 upstream

The CPU_SMT_NOT_SUPPORTED state is set (if the processor does not support
SMT) when the sysfs SMT control file is initialized.

That was fine so far as this was only required to make the output of the
control file correct and to prevent writes in that case.

With the upcoming l1tf command line parameter, this needs to be set up
before the L1TF mitigation selection and command line parsing happens.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20180713142323.121795971@linutronix.de
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Thomas Gleixner   authored and   Greg Kroah-Hartman   commited 2018-08-15 18:14:50 +02:00
929d3b2e9b
cpu/hotplug: Expose SMT control init function
commit 8e1b706b6e819bed215c0db16345568864660393 upstream

The L1TF mitigation will gain a commend line parameter which allows to set
a combination of hypervisor mitigation and SMT control.

Expose cpu_smt_disable() so the command line parser can tweak SMT settings.

[ tglx: Split out of larger patch and made it preserve an already existing
  	force off state ]

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20180713142323.039715135@linutronix.de
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Jiri Kosina   authored and   Greg Kroah-Hartman   commited 2018-08-15 18:14:50 +02:00
a69c5e0706
cpu/hotplug: Provide knobs to control SMT
commit 05736e4ac13c08a4a9b1ef2de26dd31a32cbee57 upstream

Provide a command line and a sysfs knob to control SMT.

The command line options are:

 'nosmt':	Enumerate secondary threads, but do not online them

 'nosmt=force': Ignore secondary threads completely during enumeration
 		via MP table and ACPI/MADT.

The sysfs control file has the following states (read/write):

 'on':		 SMT is enabled. Secondary threads can be freely onlined
 'off':		 SMT is disabled. Secondary threads, even if enumerated
 		 cannot be onlined
 'forceoff':	 SMT is permanentely disabled. Writes to the control
 		 file are rejected.
 'notsupported': SMT is not supported by the CPU

The command line option 'nosmt' sets the sysfs control to 'off'. This
can be changed to 'on' to reenable SMT during runtime.

The command line option 'nosmt=force' sets the sysfs control to
'forceoff'. This cannot be changed during runtime.

When SMT is 'on' and the control file is changed to 'off' then all online
secondary threads are offlined and attempts to online a secondary thread
later on are rejected.

When SMT is 'off' and the control file is changed to 'on' then secondary
threads can be onlined again. The 'off' -> 'on' transition does not
automatically online the secondary threads.

When the control file is set to 'forceoff', the behaviour is the same as
setting it to 'off', but the operation is irreversible and later writes to
the control file are rejected.

When the control status is 'notsupported' then writes to the control file
are rejected.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Thomas Gleixner   authored and   Greg Kroah-Hartman   commited 2018-08-15 18:14:46 +02:00
f37486c0a1
x86/speculation/l1tf: Add sysfs reporting for l1tf
commit 17dbca119312b4e8173d4e25ff64262119fcef38 upstream

L1TF core kernel workarounds are cheap and normally always enabled, However
they still should be reported in sysfs if the system is vulnerable or
mitigated. Add the necessary CPU feature/bug bits.

- Extend the existing checks for Meltdowns to determine if the system is
  vulnerable. All CPUs which are not vulnerable to Meltdown are also not
  vulnerable to L1TF

- Check for 32bit non PAE and emit a warning as there is no practical way
  for mitigation due to the limited physical address bits

- If the system has more than MAX_PA/2 physical memory the invert page
  workarounds don't protect the system against the L1TF attack anymore,
  because an inverted physical address will also point to valid
  memory. Print a warning in this case and report that the system is
  vulnerable.

Add a function which returns the PFN limit for the L1TF mitigation, which
will be used in follow up patches for sanity and range checks.

[ tglx: Renamed the CPU feature bit to L1TF_PTEINV ]
[ dwmw2: Backport to 4.9 (cpufeatures.h, E820) ]

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Andi Kleen   authored and   Greg Kroah-Hartman   commited 2018-08-15 18:14:45 +02:00
432e99b340
init: rename and re-order boot_cpu_state_init()
commit b5b1404d0815894de0690de8a1ab58269e56eae6 upstream.

This is purely a preparatory patch for upcoming changes during the 4.19
merge window.

We have a function called "boot_cpu_state_init()" that isn't really
about the bootup cpu state: that is done much earlier by the similarly
named "boot_cpu_init()" (note lack of "state" in name).

This function initializes some hotplug CPU state, and needs to run after
the percpu data has been properly initialized.  It even has a comment to
that effect.

Except it _doesn't_ actually run after the percpu data has been properly
initialized.  On x86 it happens to do that, but on at least arm and
arm64, the percpu base pointers are initialized by the arch-specific
'smp_prepare_boot_cpu()' hook, which ran _after_ boot_cpu_state_init().

This had some unexpected results, and in particular we have a patch
pending for the merge window that did the obvious cleanup of using
'this_cpu_write()' in the cpu hotplug init code:

  -       per_cpu_ptr(&cpuhp_state, smp_processor_id())->state = CPUHP_ONLINE;
  +       this_cpu_write(cpuhp_state.state, CPUHP_ONLINE);

which is obviously the right thing to do.  Except because of the
ordering issue, it actually failed miserably and unexpectedly on arm64.

So this just fixes the ordering, and changes the name of the function to
be 'boot_cpu_hotplug_init()' to make it obvious that it's about cpu
hotplug state, because the core CPU state was supposed to have already
been done earlier.

Marked for stable, since the (not yet merged) patch that will show this
problem is marked for stable.

Reported-by: Vlastimil Babka <vbabka@suse.cz>
Reported-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Linus Torvalds   authored and   Greg Kroah-Hartman   commited 2018-08-15 18:14:42 +02:00
6bb53ee170
Merge android-4.9.102 (9c3041c) into msm-4.9
* refs/heads/tmp-9c3041c:
  Linux 4.9.102
  x86/bugs: Rename SSBD_NO to SSB_NO
  KVM: SVM: Implement VIRT_SPEC_CTRL support for SSBD
  x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG
  x86/bugs: Rework spec_ctrl base and mask logic
  x86/bugs: Remove x86_spec_ctrl_set()
  x86/bugs: Expose x86_spec_ctrl_base directly
  x86/bugs: Unify x86_spec_ctrl_{set_guest,restore_host}
  x86/speculation: Rework speculative_store_bypass_update()
  x86/speculation: Add virtualized speculative store bypass disable support
  x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL
  x86/speculation: Handle HT correctly on AMD
  x86/cpufeatures: Add FEATURE_ZEN
  x86/cpu/AMD: Fix erratum 1076 (CPB bit)
  x86/cpufeatures: Disentangle SSBD enumeration
  x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS
  x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP
  KVM: SVM: Move spec control call after restore of GS
  x86/cpu: Make alternative_msr_write work for 32-bit code
  x86/bugs: Fix the parameters alignment and missing void
  x86/bugs: Make cpu_show_common() static
  x86/bugs: Fix __ssb_select_mitigation() return type
  Documentation/spec_ctrl: Do some minor cleanups
  proc: Use underscores for SSBD in 'status'
  x86/bugs: Rename _RDS to _SSBD
  x86/speculation: Make "seccomp" the default mode for Speculative Store Bypass
  seccomp: Move speculation migitation control to arch code
  seccomp: Add filter flag to opt-out of SSB mitigation
  seccomp: Use PR_SPEC_FORCE_DISABLE
  prctl: Add force disable speculation
  x86/bugs: Make boot modes __ro_after_init
  seccomp: Enable speculation flaw mitigations
  proc: Provide details on speculation flaw mitigations
  nospec: Allow getting/setting on non-current task
  x86/speculation: Add prctl for Speculative Store Bypass mitigation
  x86/process: Allow runtime control of Speculative Store Bypass
  x86/process: Optimize TIF_NOTSC switch
  x86/process: Correct and optimize TIF_BLOCKSTEP switch
  x86/process: Optimize TIF checks in __switch_to_xtra()
  prctl: Add speculation control prctls
  x86/speculation: Create spec-ctrl.h to avoid include hell
  x86/KVM/VMX: Expose SPEC_CTRL Bit(2) to the guest
  x86/bugs/AMD: Add support to disable RDS on Fam[15,16,17]h if requested
  x86/bugs: Whitelist allowed SPEC_CTRL MSR values
  x86/bugs/intel: Set proper CPU features and setup RDS
  x86/bugs: Provide boot parameters for the spec_store_bypass_disable mitigation
  x86/cpufeatures: Add X86_FEATURE_RDS
  x86/bugs: Expose /sys/../spec_store_bypass
  x86/bugs, KVM: Support the combination of guest and host IBRS
  x86/bugs: Read SPEC_CTRL MSR during boot and re-use reserved bits
  x86/bugs: Concentrate bug reporting into a separate function
  x86/bugs: Concentrate bug detection into a separate function
  x86/nospec: Simplify alternative_msr_write()
  btrfs: fix reading stale metadata blocks after degraded raid1 mounts
  x86/amd: don't set X86_BUG_SYSRET_SS_ATTRS when running under Xen
  btrfs: fix crash when trying to resume balance without the resume flag
  Btrfs: fix xattr loss after power failure
  ARM: 8772/1: kprobes: Prohibit kprobes on get_user functions
  ARM: 8770/1: kprobes: Prohibit probing on optimized_callback
  ARM: 8769/1: kprobes: Fix to use get_kprobe_ctlblk after irq-disabed
  tick/broadcast: Use for_each_cpu() specially on UP kernels
  ARM: 8771/1: kprobes: Prohibit kprobes on do_undefinstr
  efi: Avoid potential crashes, fix the 'struct efi_pci_io_protocol_32' definition for mixed mode
  x86/pkeys: Do not special case protection key 0
  x86/pkeys: Override pkey when moving away from PROT_EXEC
  s390: remove indirect branch from do_softirq_own_stack
  s390/qdio: don't release memory in qdio_setup_irq()
  s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero
  s390/qdio: fix access to uninitialized qdio_q fields
  mm: don't allow deferred pages with NEED_PER_CPU_KM
  powerpc/powernv: Fix NVRAM sleep in invalid context when crashing
  i2c: designware: fix poll-after-enable regression
  netfilter: nf_tables: can't fail after linking rule into active rule list
  tracing/x86/xen: Remove zero data size trace events trace_xen_mmu_flush_tlb{_all}
  signals: avoid unnecessary taking of sighand->siglock
  powerpc: Don't preempt_disable() in show_cpuinfo()
  KVM: arm/arm64: VGIC/ITS: protect kvm_read_guest() calls with SRCU lock
  spi: bcm-qspi: Always read and set BSPI_MAST_N_BOOT_CTRL
  spi: bcm-qspi: Avoid setting MSPI_CDRAM_PCS for spi-nor master
  spi: pxa2xx: Allow 64-bit DMA
  ALSA: control: fix a redundant-copy issue
  ALSA: hda: Add Lenovo C50 All in one to the power_save blacklist
  ALSA: usb: mixer: volume quirk for CM102-A+/102S+
  usbip: usbip_host: fix bad unlock balance during stub_probe()
  usbip: usbip_host: fix NULL-ptr deref and use-after-free errors
  usbip: usbip_host: run rebind from exit when module is removed
  usbip: usbip_host: delete device from busid_table after rebind
  usbip: usbip_host: refine probe and disconnect debug msgs to be useful
  UPSTREAM: dm bufio: avoid sleeping while holding the dm_bufio lock

Conflicts:
	include/uapi/linux/prctl.h

Change-Id: I881a3f8da1b46ed7293b25d859b39bbb0efdad5c
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>

Blagovest Kolenichev   commited 2018-05-29 07:46:44 -07:00
d33c30a164
This is the 4.9.102 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAlsEL/0ACgkQONu9yGCS
 aT447A/+MXjcr7AJdqLQUBD3d37K5FanRWAK8VeqablR9fi0nb3lNh5jO3+eY+3u
 HqJCNLElQbzq5LcyyocxvJDvektASgslctFrLbHNoDs5/TnFQN2p/RDLXZ3kcsY3
 jw73Bypn0aZ19wIY887DqyIb6FEOW8ZRsWMc/rvv+k/hC35zoINUBpO5IcCeur7I
 8i3AG/FEaytzq6HjwEdatx0+13TfTQwtnMqwXtINNVofIKHUKKWFeB9+ahM7lMeE
 kh5MQGsw1lhih+3edFJFqJl2+LxHon0T+lQwAOS87iQ5Il3AiwOo1TMrj7jpEosy
 S8RP1BVD54oWxFaXnbslQT9bwkNmldCblLxHxOaPy4EzYrCHS+JrdvdWvBYU49h4
 WuErj62oQ/bCqIW0iwyyebO9qLFpjKgXrLhJ2M8QgUAQv38lCUJ5v5rzaOtpXetU
 Q27ONwkXRTiJewIr+En08Y4mnNlxzTtBd7jRdGbxqzH5ceNTsQIVXE+S17NGi4UV
 aiVvNLVz7i3T2HVE+acoTsUkjsebrvgCmoWMNN2AXgdS9AI1rwvOKnV6V761iwTj
 wDPBX4zQGI56QgF4hvXWeT/cMI9uAbJH1vRXTSxCfAWTGVzLlfX6Lmq9ufFKU42c
 gPCU5fZEGN9s3KHrFyVBetqFfYBcl79olsBoUyv79Y6VPiFLqJA=
 =e9j8
 -----END PGP SIGNATURE-----

Merge 4.9.102 into android-4.9

Changes in 4.9.102
	usbip: usbip_host: refine probe and disconnect debug msgs to be useful
	usbip: usbip_host: delete device from busid_table after rebind
	usbip: usbip_host: run rebind from exit when module is removed
	usbip: usbip_host: fix NULL-ptr deref and use-after-free errors
	usbip: usbip_host: fix bad unlock balance during stub_probe()
	ALSA: usb: mixer: volume quirk for CM102-A+/102S+
	ALSA: hda: Add Lenovo C50 All in one to the power_save blacklist
	ALSA: control: fix a redundant-copy issue
	spi: pxa2xx: Allow 64-bit DMA
	spi: bcm-qspi: Avoid setting MSPI_CDRAM_PCS for spi-nor master
	spi: bcm-qspi: Always read and set BSPI_MAST_N_BOOT_CTRL
	KVM: arm/arm64: VGIC/ITS: protect kvm_read_guest() calls with SRCU lock
	powerpc: Don't preempt_disable() in show_cpuinfo()
	signals: avoid unnecessary taking of sighand->siglock
	tracing/x86/xen: Remove zero data size trace events trace_xen_mmu_flush_tlb{_all}
	netfilter: nf_tables: can't fail after linking rule into active rule list
	i2c: designware: fix poll-after-enable regression
	powerpc/powernv: Fix NVRAM sleep in invalid context when crashing
	mm: don't allow deferred pages with NEED_PER_CPU_KM
	s390/qdio: fix access to uninitialized qdio_q fields
	s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero
	s390/qdio: don't release memory in qdio_setup_irq()
	s390: remove indirect branch from do_softirq_own_stack
	x86/pkeys: Override pkey when moving away from PROT_EXEC
	x86/pkeys: Do not special case protection key 0
	efi: Avoid potential crashes, fix the 'struct efi_pci_io_protocol_32' definition for mixed mode
	ARM: 8771/1: kprobes: Prohibit kprobes on do_undefinstr
	tick/broadcast: Use for_each_cpu() specially on UP kernels
	ARM: 8769/1: kprobes: Fix to use get_kprobe_ctlblk after irq-disabed
	ARM: 8770/1: kprobes: Prohibit probing on optimized_callback
	ARM: 8772/1: kprobes: Prohibit kprobes on get_user functions
	Btrfs: fix xattr loss after power failure
	btrfs: fix crash when trying to resume balance without the resume flag
	x86/amd: don't set X86_BUG_SYSRET_SS_ATTRS when running under Xen
	btrfs: fix reading stale metadata blocks after degraded raid1 mounts
	x86/nospec: Simplify alternative_msr_write()
	x86/bugs: Concentrate bug detection into a separate function
	x86/bugs: Concentrate bug reporting into a separate function
	x86/bugs: Read SPEC_CTRL MSR during boot and re-use reserved bits
	x86/bugs, KVM: Support the combination of guest and host IBRS
	x86/bugs: Expose /sys/../spec_store_bypass
	x86/cpufeatures: Add X86_FEATURE_RDS
	x86/bugs: Provide boot parameters for the spec_store_bypass_disable mitigation
	x86/bugs/intel: Set proper CPU features and setup RDS
	x86/bugs: Whitelist allowed SPEC_CTRL MSR values
	x86/bugs/AMD: Add support to disable RDS on Fam[15,16,17]h if requested
	x86/KVM/VMX: Expose SPEC_CTRL Bit(2) to the guest
	x86/speculation: Create spec-ctrl.h to avoid include hell
	prctl: Add speculation control prctls
	x86/process: Optimize TIF checks in __switch_to_xtra()
	x86/process: Correct and optimize TIF_BLOCKSTEP switch
	x86/process: Optimize TIF_NOTSC switch
	x86/process: Allow runtime control of Speculative Store Bypass
	x86/speculation: Add prctl for Speculative Store Bypass mitigation
	nospec: Allow getting/setting on non-current task
	proc: Provide details on speculation flaw mitigations
	seccomp: Enable speculation flaw mitigations
	x86/bugs: Make boot modes __ro_after_init
	prctl: Add force disable speculation
	seccomp: Use PR_SPEC_FORCE_DISABLE
	seccomp: Add filter flag to opt-out of SSB mitigation
	seccomp: Move speculation migitation control to arch code
	x86/speculation: Make "seccomp" the default mode for Speculative Store Bypass
	x86/bugs: Rename _RDS to _SSBD
	proc: Use underscores for SSBD in 'status'
	Documentation/spec_ctrl: Do some minor cleanups
	x86/bugs: Fix __ssb_select_mitigation() return type
	x86/bugs: Make cpu_show_common() static
	x86/bugs: Fix the parameters alignment and missing void
	x86/cpu: Make alternative_msr_write work for 32-bit code
	KVM: SVM: Move spec control call after restore of GS
	x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP
	x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS
	x86/cpufeatures: Disentangle SSBD enumeration
	x86/cpu/AMD: Fix erratum 1076 (CPB bit)
	x86/cpufeatures: Add FEATURE_ZEN
	x86/speculation: Handle HT correctly on AMD
	x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL
	x86/speculation: Add virtualized speculative store bypass disable support
	x86/speculation: Rework speculative_store_bypass_update()
	x86/bugs: Unify x86_spec_ctrl_{set_guest,restore_host}
	x86/bugs: Expose x86_spec_ctrl_base directly
	x86/bugs: Remove x86_spec_ctrl_set()
	x86/bugs: Rework spec_ctrl base and mask logic
	x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG
	KVM: SVM: Implement VIRT_SPEC_CTRL support for SSBD
	x86/bugs: Rename SSBD_NO to SSB_NO
	Linux 4.9.102

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

Greg Kroah-Hartman   commited 2018-05-22 20:05:34 +02:00
9c3041c524
x86/bugs: Expose /sys/../spec_store_bypass
commit c456442cd3a59eeb1d60293c26cbe2ff2c4e42cf upstream

Add the sysfs file for the new vulerability. It does not do much except
show the words 'Vulnerable' for recent x86 cores.

Intel cores prior to family 6 are known not to be vulnerable, and so are
some Atoms and some Xeon Phi.

It assumes that older Cyrix, Centaur, etc. cores are immune.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Konrad Rzeszutek Wilk   authored and   Greg Kroah-Hartman   commited 2018-05-22 16:57:59 +02:00
24e4dd97af
Merge android-4.9-o.77 (dcb2674) into msm-4.9
* refs/heads/tmp-dcb2674:
  Linux 4.9.77
  x86/pti/efi: broken conversion from efi to kernel page table
  objtool: Fix retpoline support for pre-ORC objtool
  x86/retpoline: Remove compile time warning
  selftests/x86: Add test_vsyscall
  x86/retpoline: Fill return stack buffer on vmexit
  x86/retpoline/irq32: Convert assembler indirect jumps
  x86/retpoline/checksum32: Convert assembler indirect jumps
  x86/retpoline/xen: Convert Xen hypercall indirect jumps
  x86/retpoline/hyperv: Convert assembler indirect jumps
  x86/retpoline/ftrace: Convert ftrace assembler indirect jumps
  x86/retpoline/entry: Convert entry assembler indirect jumps
  x86/retpoline/crypto: Convert crypto assembler indirect jumps
  x86/spectre: Add boot time option to select Spectre v2 mitigation
  x86/retpoline: Add initial retpoline support
  x86/asm: Use register variable to get stack pointer value
  objtool: Allow alternatives to be ignored
  objtool: Detect jumps to retpoline thunks
  objtool, modules: Discard objtool annotation sections for modules
  x86/mm/32: Move setup_clear_cpu_cap(X86_FEATURE_PCID) earlier
  x86/alternatives: Add missing '\n' at end of ALTERNATIVE inline asm
  x86/alternatives: Fix optimize_nops() checking
  sysfs/cpu: Fix typos in vulnerability documentation
  x86/cpu/AMD: Use LFENCE_RDTSC in preference to MFENCE_RDTSC
  x86/cpu/AMD: Make LFENCE a serializing instruction
  x86/cpu: Implement CPU vulnerabilites sysfs functions
  sysfs/cpu: Add vulnerability folder
  x86/cpu: Merge bugs.c and bugs_64.c
  x86/cpufeatures: Add X86_BUG_SPECTRE_V[12]
  x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN
  x86/cpufeatures: Add X86_BUG_CPU_INSECURE
  x86/cpufeatures: Make CPU bugs sticky
  x86/cpu: Factor out application of forced CPU caps
  x86/Documentation: Add PTI description
  e1000e: Fix e1000_check_for_copper_link_ich8lan return value.
  uas: ignore UAS for Norelsys NS1068(X) chips
  Bluetooth: Prevent stack info leak from the EFS element.
  staging: android: ashmem: fix a race condition in ASHMEM_SET_SIZE ioctl
  usbip: vudc_tx: fix v_send_ret_submit() vulnerability to null xfer buffer
  usbip: fix vudc_rx: harden CMD_SUBMIT path to handle malicious input
  usbip: remove kernel addresses from usb device and urb debug msgs
  USB: fix usbmon BUG trigger
  usb: misc: usb3503: make sure reset is low for at least 100us
  USB: serial: cp210x: add new device ID ELV ALC 8xxx
  USB: serial: cp210x: add IDs for LifeScan OneTouch Verio IQ
  bpf, array: fix overflow in max_entries and undefined behavior in index_mask
  bpf: prevent out-of-bounds speculation
  bpf: refactor fixup_bpf_calls()
  bpf: move fixup_bpf_calls() function
  target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK
  iscsi-target: Make TASK_REASSIGN use proper se_cmd->cmd_kref
  kaiser: Set _PAGE_NX only if supported
  drm/vmwgfx: Potential off by one in vmw_view_add()
  KVM: x86: Add memory barrier on vmcs field lookup
  x86/microcode/intel: Extend BDW late-loading with a revision check
  rbd: set max_segments to USHRT_MAX
  crypto: algapi - fix NULL dereference in crypto_remove_spawns()
  net/sched: Fix update of lastuse in act modules implementing stats_update
  mlxsw: spectrum_router: Fix NULL pointer deref
  ethtool: do not print warning for applications using legacy API
  ipv6: fix possible mem leaks in ipv6_make_skb()
  net: stmmac: enable EEE in MII, GMII or RGMII only
  sh_eth: fix SH7757 GEther initialization
  sh_eth: fix TSU resource handling
  RDS: null pointer dereference in rds_atomic_free_op
  RDS: Heap OOB write in rds_message_alloc_sgs()
  net: core: fix module type in sock_diag_bind
  ip6_tunnel: disable dst caching if tunnel is dual-stack
  8021q: fix a memory leak for VLAN 0 device
  xhci: Fix ring leak in failure path of xhci_alloc_virt_device()
  cx82310_eth: use skb_cow_head() to deal with cloned skbs
  smsc75xx: use skb_cow_head() to deal with cloned skbs
  sr9700: use skb_cow_head() to deal with cloned skbs
  lan78xx: use skb_cow_head() to deal with cloned skbs
  zswap: don't param_set_charp while holding spinlock
  x86/acpi: Reduce code duplication in mp_override_legacy_irq()
  ALSA: aloop: Fix racy hw constraints adjustment
  ALSA: aloop: Fix inconsistent format due to incomplete rule
  ALSA: aloop: Release cable upon open error path
  ALSA: pcm: Allow aborting mutex lock at OSS read/write loops
  ALSA: pcm: Abort properly at pending signal in OSS read/write loops
  ALSA: pcm: Add missing error checks in OSS emulation plugin builder
  ALSA: pcm: Remove incorrect snd_BUG_ON() usages
  x86/acpi: Handle SCI interrupts above legacy space gracefully
  platform/x86: wmi: Call acpi_wmi_init() later
  kvm: vmx: Scrub hardware GPRs at VM-exit
  MIPS: Disallow outsized PTRACE_SETREGSET NT_PRFPREG regset accesses
  MIPS: Also verify sizeof `elf_fpreg_t' with PTRACE_SETREGSET
  MIPS: Fix an FCSR access API regression with NT_PRFPREG and MSA
  MIPS: Consistently handle buffer counter with PTRACE_SETREGSET
  MIPS: Guard against any partial write attempt with PTRACE_SETREGSET
  MIPS: Factor out NT_PRFPREG regset access helpers
  MIPS: Validate PR_SET_FP_MODE prctl(2) requests against the ABI of the task
  IB/srpt: Disable RDMA access by the initiator
  can: gs_usb: fix return value of the "set_bittiming" callback
  KVM: Fix stack-out-of-bounds read in write_mmio
  ath10k: rebuild crypto header in rx data frames
  mac80211: Add RX flag to indicate ICV stripped
  dm bufio: fix shrinker scans when (nr_to_scan < retain_target)
  ANDROID: mnt: Fix freeing of mount data

Change-Id: Iad0559441a3c9a2319abd8eda5ef3f8793d723fe
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>

Blagovest Kolenichev   commited 2018-01-19 08:50:16 -08:00
eef0f77289
This is the 4.9.77 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAlpfC6UACgkQONu9yGCS
 aT7DEg//eQt2Bh3O3UgkO00vmWYCrZVCR8cCYeEhKOiuwtyU6c5zdEybfVTIIsi7
 jm9UypajB6kq50ZXxR1PY1tczfFQpAEZLQBBbaaX7y47HQEYi1FWFRr6ba3VLXnp
 fNYOySWbeyO0XBywyXv5n9a2BE13MX97bW3zP6+Yhf0x7o4wPx5Xx0mDI9etqPnA
 FPItaRVC1Ud+ILQf26PiJPCIOZKXHBYDyqmMlPhwu+Vgn4cbUs9WFeJ0Jq58h5ya
 A/SiknxKH6iCU8us9z4hIXWvyCvoxVLhHm789r4O0L64yAHkc3uHPPax//Xt5psL
 FyTP7e0G+Bj56YpPwx7f6k/+GSrLN52X81cF7oNXy/oJztMuL6oKsfPFxbRxh6wk
 xYgBnie654qbH2zncK1c5/ZgIWSHGlCXPkUzdH5Wky72N6xsvlTmrCQ55TJHLB6t
 UKkHfhKeUSMDjxDEHMhT3pPViKSXZb2zwXBej976OJEVlyeOr65v7rULD+Di7jFT
 dBegeauxWJiVCiOZrM3606C1K6xQk5nnxngg9dAQ8Gj7V2bge3/P414zWEJo0APw
 96EVgGsk0vTcy2irKJmdRWWH1svIflakfvut0PVfbOEhIvsMtcO2cKzEXFmA0vJz
 gcsy+Gsj3sW83BJR5NNiZZ90hF6ht+tNjbp7YNoxkoLHf64SE4A=
 =r9Be
 -----END PGP SIGNATURE-----

Merge 4.9.77 into android-4.9-o

Changes in 4.9.77
	dm bufio: fix shrinker scans when (nr_to_scan < retain_target)
	mac80211: Add RX flag to indicate ICV stripped
	ath10k: rebuild crypto header in rx data frames
	KVM: Fix stack-out-of-bounds read in write_mmio
	can: gs_usb: fix return value of the "set_bittiming" callback
	IB/srpt: Disable RDMA access by the initiator
	MIPS: Validate PR_SET_FP_MODE prctl(2) requests against the ABI of the task
	MIPS: Factor out NT_PRFPREG regset access helpers
	MIPS: Guard against any partial write attempt with PTRACE_SETREGSET
	MIPS: Consistently handle buffer counter with PTRACE_SETREGSET
	MIPS: Fix an FCSR access API regression with NT_PRFPREG and MSA
	MIPS: Also verify sizeof `elf_fpreg_t' with PTRACE_SETREGSET
	MIPS: Disallow outsized PTRACE_SETREGSET NT_PRFPREG regset accesses
	kvm: vmx: Scrub hardware GPRs at VM-exit
	platform/x86: wmi: Call acpi_wmi_init() later
	x86/acpi: Handle SCI interrupts above legacy space gracefully
	ALSA: pcm: Remove incorrect snd_BUG_ON() usages
	ALSA: pcm: Add missing error checks in OSS emulation plugin builder
	ALSA: pcm: Abort properly at pending signal in OSS read/write loops
	ALSA: pcm: Allow aborting mutex lock at OSS read/write loops
	ALSA: aloop: Release cable upon open error path
	ALSA: aloop: Fix inconsistent format due to incomplete rule
	ALSA: aloop: Fix racy hw constraints adjustment
	x86/acpi: Reduce code duplication in mp_override_legacy_irq()
	zswap: don't param_set_charp while holding spinlock
	lan78xx: use skb_cow_head() to deal with cloned skbs
	sr9700: use skb_cow_head() to deal with cloned skbs
	smsc75xx: use skb_cow_head() to deal with cloned skbs
	cx82310_eth: use skb_cow_head() to deal with cloned skbs
	xhci: Fix ring leak in failure path of xhci_alloc_virt_device()
	8021q: fix a memory leak for VLAN 0 device
	ip6_tunnel: disable dst caching if tunnel is dual-stack
	net: core: fix module type in sock_diag_bind
	RDS: Heap OOB write in rds_message_alloc_sgs()
	RDS: null pointer dereference in rds_atomic_free_op
	sh_eth: fix TSU resource handling
	sh_eth: fix SH7757 GEther initialization
	net: stmmac: enable EEE in MII, GMII or RGMII only
	ipv6: fix possible mem leaks in ipv6_make_skb()
	ethtool: do not print warning for applications using legacy API
	mlxsw: spectrum_router: Fix NULL pointer deref
	net/sched: Fix update of lastuse in act modules implementing stats_update
	crypto: algapi - fix NULL dereference in crypto_remove_spawns()
	rbd: set max_segments to USHRT_MAX
	x86/microcode/intel: Extend BDW late-loading with a revision check
	KVM: x86: Add memory barrier on vmcs field lookup
	drm/vmwgfx: Potential off by one in vmw_view_add()
	kaiser: Set _PAGE_NX only if supported
	iscsi-target: Make TASK_REASSIGN use proper se_cmd->cmd_kref
	target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK
	bpf: move fixup_bpf_calls() function
	bpf: refactor fixup_bpf_calls()
	bpf: prevent out-of-bounds speculation
	bpf, array: fix overflow in max_entries and undefined behavior in index_mask
	USB: serial: cp210x: add IDs for LifeScan OneTouch Verio IQ
	USB: serial: cp210x: add new device ID ELV ALC 8xxx
	usb: misc: usb3503: make sure reset is low for at least 100us
	USB: fix usbmon BUG trigger
	usbip: remove kernel addresses from usb device and urb debug msgs
	usbip: fix vudc_rx: harden CMD_SUBMIT path to handle malicious input
	usbip: vudc_tx: fix v_send_ret_submit() vulnerability to null xfer buffer
	staging: android: ashmem: fix a race condition in ASHMEM_SET_SIZE ioctl
	Bluetooth: Prevent stack info leak from the EFS element.
	uas: ignore UAS for Norelsys NS1068(X) chips
	e1000e: Fix e1000_check_for_copper_link_ich8lan return value.
	x86/Documentation: Add PTI description
	x86/cpu: Factor out application of forced CPU caps
	x86/cpufeatures: Make CPU bugs sticky
	x86/cpufeatures: Add X86_BUG_CPU_INSECURE
	x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN
	x86/cpufeatures: Add X86_BUG_SPECTRE_V[12]
	x86/cpu: Merge bugs.c and bugs_64.c
	sysfs/cpu: Add vulnerability folder
	x86/cpu: Implement CPU vulnerabilites sysfs functions
	x86/cpu/AMD: Make LFENCE a serializing instruction
	x86/cpu/AMD: Use LFENCE_RDTSC in preference to MFENCE_RDTSC
	sysfs/cpu: Fix typos in vulnerability documentation
	x86/alternatives: Fix optimize_nops() checking
	x86/alternatives: Add missing '\n' at end of ALTERNATIVE inline asm
	x86/mm/32: Move setup_clear_cpu_cap(X86_FEATURE_PCID) earlier
	objtool, modules: Discard objtool annotation sections for modules
	objtool: Detect jumps to retpoline thunks
	objtool: Allow alternatives to be ignored
	x86/asm: Use register variable to get stack pointer value
	x86/retpoline: Add initial retpoline support
	x86/spectre: Add boot time option to select Spectre v2 mitigation
	x86/retpoline/crypto: Convert crypto assembler indirect jumps
	x86/retpoline/entry: Convert entry assembler indirect jumps
	x86/retpoline/ftrace: Convert ftrace assembler indirect jumps
	x86/retpoline/hyperv: Convert assembler indirect jumps
	x86/retpoline/xen: Convert Xen hypercall indirect jumps
	x86/retpoline/checksum32: Convert assembler indirect jumps
	x86/retpoline/irq32: Convert assembler indirect jumps
	x86/retpoline: Fill return stack buffer on vmexit
	selftests/x86: Add test_vsyscall
	x86/retpoline: Remove compile time warning
	objtool: Fix retpoline support for pre-ORC objtool
	x86/pti/efi: broken conversion from efi to kernel page table
	Linux 4.9.77

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

Greg Kroah-Hartman   commited 2018-01-17 10:38:29 +01:00
dcb2674a47
This is the 4.9.77 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAlpfC6UACgkQONu9yGCS
 aT7DEg//eQt2Bh3O3UgkO00vmWYCrZVCR8cCYeEhKOiuwtyU6c5zdEybfVTIIsi7
 jm9UypajB6kq50ZXxR1PY1tczfFQpAEZLQBBbaaX7y47HQEYi1FWFRr6ba3VLXnp
 fNYOySWbeyO0XBywyXv5n9a2BE13MX97bW3zP6+Yhf0x7o4wPx5Xx0mDI9etqPnA
 FPItaRVC1Ud+ILQf26PiJPCIOZKXHBYDyqmMlPhwu+Vgn4cbUs9WFeJ0Jq58h5ya
 A/SiknxKH6iCU8us9z4hIXWvyCvoxVLhHm789r4O0L64yAHkc3uHPPax//Xt5psL
 FyTP7e0G+Bj56YpPwx7f6k/+GSrLN52X81cF7oNXy/oJztMuL6oKsfPFxbRxh6wk
 xYgBnie654qbH2zncK1c5/ZgIWSHGlCXPkUzdH5Wky72N6xsvlTmrCQ55TJHLB6t
 UKkHfhKeUSMDjxDEHMhT3pPViKSXZb2zwXBej976OJEVlyeOr65v7rULD+Di7jFT
 dBegeauxWJiVCiOZrM3606C1K6xQk5nnxngg9dAQ8Gj7V2bge3/P414zWEJo0APw
 96EVgGsk0vTcy2irKJmdRWWH1svIflakfvut0PVfbOEhIvsMtcO2cKzEXFmA0vJz
 gcsy+Gsj3sW83BJR5NNiZZ90hF6ht+tNjbp7YNoxkoLHf64SE4A=
 =r9Be
 -----END PGP SIGNATURE-----

Merge 4.9.77 into android-4.9

Changes in 4.9.77
	dm bufio: fix shrinker scans when (nr_to_scan < retain_target)
	mac80211: Add RX flag to indicate ICV stripped
	ath10k: rebuild crypto header in rx data frames
	KVM: Fix stack-out-of-bounds read in write_mmio
	can: gs_usb: fix return value of the "set_bittiming" callback
	IB/srpt: Disable RDMA access by the initiator
	MIPS: Validate PR_SET_FP_MODE prctl(2) requests against the ABI of the task
	MIPS: Factor out NT_PRFPREG regset access helpers
	MIPS: Guard against any partial write attempt with PTRACE_SETREGSET
	MIPS: Consistently handle buffer counter with PTRACE_SETREGSET
	MIPS: Fix an FCSR access API regression with NT_PRFPREG and MSA
	MIPS: Also verify sizeof `elf_fpreg_t' with PTRACE_SETREGSET
	MIPS: Disallow outsized PTRACE_SETREGSET NT_PRFPREG regset accesses
	kvm: vmx: Scrub hardware GPRs at VM-exit
	platform/x86: wmi: Call acpi_wmi_init() later
	x86/acpi: Handle SCI interrupts above legacy space gracefully
	ALSA: pcm: Remove incorrect snd_BUG_ON() usages
	ALSA: pcm: Add missing error checks in OSS emulation plugin builder
	ALSA: pcm: Abort properly at pending signal in OSS read/write loops
	ALSA: pcm: Allow aborting mutex lock at OSS read/write loops
	ALSA: aloop: Release cable upon open error path
	ALSA: aloop: Fix inconsistent format due to incomplete rule
	ALSA: aloop: Fix racy hw constraints adjustment
	x86/acpi: Reduce code duplication in mp_override_legacy_irq()
	zswap: don't param_set_charp while holding spinlock
	lan78xx: use skb_cow_head() to deal with cloned skbs
	sr9700: use skb_cow_head() to deal with cloned skbs
	smsc75xx: use skb_cow_head() to deal with cloned skbs
	cx82310_eth: use skb_cow_head() to deal with cloned skbs
	xhci: Fix ring leak in failure path of xhci_alloc_virt_device()
	8021q: fix a memory leak for VLAN 0 device
	ip6_tunnel: disable dst caching if tunnel is dual-stack
	net: core: fix module type in sock_diag_bind
	RDS: Heap OOB write in rds_message_alloc_sgs()
	RDS: null pointer dereference in rds_atomic_free_op
	sh_eth: fix TSU resource handling
	sh_eth: fix SH7757 GEther initialization
	net: stmmac: enable EEE in MII, GMII or RGMII only
	ipv6: fix possible mem leaks in ipv6_make_skb()
	ethtool: do not print warning for applications using legacy API
	mlxsw: spectrum_router: Fix NULL pointer deref
	net/sched: Fix update of lastuse in act modules implementing stats_update
	crypto: algapi - fix NULL dereference in crypto_remove_spawns()
	rbd: set max_segments to USHRT_MAX
	x86/microcode/intel: Extend BDW late-loading with a revision check
	KVM: x86: Add memory barrier on vmcs field lookup
	drm/vmwgfx: Potential off by one in vmw_view_add()
	kaiser: Set _PAGE_NX only if supported
	iscsi-target: Make TASK_REASSIGN use proper se_cmd->cmd_kref
	target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK
	bpf: move fixup_bpf_calls() function
	bpf: refactor fixup_bpf_calls()
	bpf: prevent out-of-bounds speculation
	bpf, array: fix overflow in max_entries and undefined behavior in index_mask
	USB: serial: cp210x: add IDs for LifeScan OneTouch Verio IQ
	USB: serial: cp210x: add new device ID ELV ALC 8xxx
	usb: misc: usb3503: make sure reset is low for at least 100us
	USB: fix usbmon BUG trigger
	usbip: remove kernel addresses from usb device and urb debug msgs
	usbip: fix vudc_rx: harden CMD_SUBMIT path to handle malicious input
	usbip: vudc_tx: fix v_send_ret_submit() vulnerability to null xfer buffer
	staging: android: ashmem: fix a race condition in ASHMEM_SET_SIZE ioctl
	Bluetooth: Prevent stack info leak from the EFS element.
	uas: ignore UAS for Norelsys NS1068(X) chips
	e1000e: Fix e1000_check_for_copper_link_ich8lan return value.
	x86/Documentation: Add PTI description
	x86/cpu: Factor out application of forced CPU caps
	x86/cpufeatures: Make CPU bugs sticky
	x86/cpufeatures: Add X86_BUG_CPU_INSECURE
	x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN
	x86/cpufeatures: Add X86_BUG_SPECTRE_V[12]
	x86/cpu: Merge bugs.c and bugs_64.c
	sysfs/cpu: Add vulnerability folder
	x86/cpu: Implement CPU vulnerabilites sysfs functions
	x86/cpu/AMD: Make LFENCE a serializing instruction
	x86/cpu/AMD: Use LFENCE_RDTSC in preference to MFENCE_RDTSC
	sysfs/cpu: Fix typos in vulnerability documentation
	x86/alternatives: Fix optimize_nops() checking
	x86/alternatives: Add missing '\n' at end of ALTERNATIVE inline asm
	x86/mm/32: Move setup_clear_cpu_cap(X86_FEATURE_PCID) earlier
	objtool, modules: Discard objtool annotation sections for modules
	objtool: Detect jumps to retpoline thunks
	objtool: Allow alternatives to be ignored
	x86/asm: Use register variable to get stack pointer value
	x86/retpoline: Add initial retpoline support
	x86/spectre: Add boot time option to select Spectre v2 mitigation
	x86/retpoline/crypto: Convert crypto assembler indirect jumps
	x86/retpoline/entry: Convert entry assembler indirect jumps
	x86/retpoline/ftrace: Convert ftrace assembler indirect jumps
	x86/retpoline/hyperv: Convert assembler indirect jumps
	x86/retpoline/xen: Convert Xen hypercall indirect jumps
	x86/retpoline/checksum32: Convert assembler indirect jumps
	x86/retpoline/irq32: Convert assembler indirect jumps
	x86/retpoline: Fill return stack buffer on vmexit
	selftests/x86: Add test_vsyscall
	x86/retpoline: Remove compile time warning
	objtool: Fix retpoline support for pre-ORC objtool
	x86/pti/efi: broken conversion from efi to kernel page table
	Linux 4.9.77

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

Greg Kroah-Hartman   commited 2018-01-17 10:29:45 +01:00
033d019ce2
sysfs/cpu: Add vulnerability folder
commit 87590ce6e373d1a5401f6539f0c59ef92dd924a9 upstream.

As the meltdown/spectre problem affects several CPU architectures, it makes
sense to have common way to express whether a system is affected by a
particular vulnerability or not. If affected the way to express the
mitigation should be common as well.

Create /sys/devices/system/cpu/vulnerabilities folder and files for
meltdown, spectre_v1 and spectre_v2.

Allow architectures to override the show function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://lkml.kernel.org/r/20180107214913.096657732@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Thomas Gleixner   authored and   Greg Kroah-Hartman   commited 2018-01-17 09:38:57 +01:00
11ec2df9c0
soc: qcom: msm-core: Remove the energy-aware driver
Future targets do not use userspace power any more. Remove
the driver altogether.

Change-Id: Ifb4f6913372e945e484d4c03d37d213c6950375c
Signed-off-by: Archana Sathyakumar <asathyak@codeaurora.org>

Archana Sathyakumar   authored and   Gerrit - the friendly Code Review server   commited 2017-10-24 09:55:12 -07:00
892d410de6
cgroup/cpuset: remove circular dependency deadlock
Remove circular dependency deadlock in a scenario where hotplug of CPU is
being done while there is updation in cgroup and cpuset triggered from
userspace.

Process A => kthreadd => Process B => Process C => Process A

Process A
cpu_subsys_offline();
   cpu_down();
     _cpu_down();
       mutex_lock(&cpuhotplug.lock); //held
       __cpu_notify();
         workqueue_cpu_down_callback();
           queue_work_on(system_highpri_wq);
             __queue_work();
               insert_work();
                 wake_up_worker(); //pool->nr_running = 0
           flush_work();
           wait_for_completion();

worker_thread();
  need_more_worker(); // returns true
  manage_workers();
    maybe_create_worker();
	  create_worker();
	    kthread_create_on_node();
		  wake_up_process(kthreadd_task);

kthreadd
kthreadd();
  kernel_thread();
    do_fork();
      copy_process();
        percpu_down_read(&cgroup_threadgroup_rwsem);
          __rwsem_down_read_failed_common(); //waiting

Process B
kernfs_fop_write();
  cgroup_file_write();
    cgroup_tasks_write();
      percpu_down_write(&cgroup_threadgroup_rwsem); //held
      cgroup_attach_task();
        cgroup_migrate();
          cgroup_taskset_migrate();
            cpuset_can_attach();
              mutex_lock(&cpuset_mutex); //waiting

Process C
kernfs_fop_write();
  cgroup_file_write();
    cpuset_write_resmask();
      mutex_lock(&cpuset_mutex); //held
      update_cpumask();
        update_cpumasks_hier();
          rebuild_sched_domains_locked();
            get_online_cpus();
              mutex_lock(&cpuhotplug.lock); //waiting

Eliminate this dependecy by reordering locking of cpuset_mutex
and cpuhotplug.lock.

Change-Id: Ifd76373d717c53b531623a3be76b7d32e0d959fd
Signed-off-by: Prateek Sood <prsood@codeaurora.org>

Prateek Sood   authored and   Gerrit - the friendly Code Review server   commited 2017-10-10 21:45:49 -07:00
e9e7b7541a
Merge remote-tracking branch 'origin/tmp-dcb6110' into 4.8
* origin/tmp-dcb6110:
  ANDROID: goldfish_sync: 32 max cmds to save stack
  ANDROID: sched/walt: use div_u64 instead of do_div
  Linux 4.9.9
  drm/i915/execlists: Reset RING registers upon resume
  fs: break out of iomap_file_buffered_write on fatal signals
  iw_cxgb4: set correct FetchBurstMax for QPs
  x86/irq: Make irq activate operations symmetric
  irqdomain: Avoid activating interrupts more than once
  iio: health: max30100: fixed parenthesis around FIFO count check
  iio: dht11: Use usleep_range instead of msleep for start signal
  iio: health: afe4403: retrieve a valid iio_dev in suspend/resume
  iio: health: afe4404: retrieve a valid iio_dev in suspend/resume
  iio: adc: palmas_gpadc: retrieve a valid iio_dev in suspend/resume
  staging: greybus: timesync: validate platform state callback
  USB: serial: option: add device ID for HP lt2523 (Novatel E371)
  usb: gadget: f_fs: Assorted buffer overflow checks.
  usb: musb: Fix host mode error -71 regression
  USB: Add quirk for WORLDE easykey.25 MIDI keyboard
  USB: serial: pl2303: add ATEN device ID
  USB: serial: qcserial: add Dell DW5570 QDL
  KVM: x86: do not save guest-unsupported XSAVE state
  dmaengine: cppi41: Fix oops in cppi41_runtime_resume
  dmaengine: cppi41: Fix runtime PM timeouts with USB mass storage
  perf/x86/intel/uncore: Clean up hotplug conversion fallout
  HID: wacom: Fix poor prox handling in 'wacom_pl_irq'
  HID: hid-lg: Fix immediate disconnection of Logitech Rumblepad 2
  HID: usbhid: Quirk a AMI virtual mouse and keyboard with ALWAYS_POLL
  iwlwifi: mvm: avoid crash on restart w/o reserved queues
  iwlwifi: fix double hyphen in MODULE_FIRMWARE for 8000
  pinctrl: intel: merrifield: Add missed check in mrfld_config_set()
  pinctrl: baytrail: Debounce register is one per community
  Revert "vring: Force use of DMA API for ARM-based systems with legacy devices"
  Revert "bcma: init serial console directly from ChipCommon code"
  percpu-refcount: fix reference leak during percpu-atomic transition
  regulator: axp20x: AXP806: Fix dcdcb being set instead of dcdce
  vhost: fix initialization for vq->is_le
  mmc: sdhci: Ignore unexpected CARD_INT interrupts
  cgroup: don't online subsystems before cgroup_name/path() are operational
  can: bcm: fix hrtimer/tasklet termination in bcm op removal
  tracing: Fix hwlat kthread migration
  mm, fs: check for fatal signals in do_generic_file_read()
  base/memory, hotplug: fix a kernel oops in show_valid_zones()
  mm/memory_hotplug.c: check start_pfn in test_pages_in_a_zone()
  cifs: initialize file_info_lock
  zswap: disable changing params if init fails
  svcrpc: fix oops in absence of krb5 module
  NFSD: Fix a null reference case in find_or_create_lock_stateid()
  powerpc/mm: Use the correct pointer when setting a 2MB pte
  powerpc: Fix build failure with clang due to BUILD_BUG_ON()
  powerpc: Add missing error check to prom_find_boot_cpu()
  powerpc/eeh: Fix wrong flag passed to eeh_unfreeze_pe()
  libata: Fix ATA request sense
  libata: apply MAX_SEC_1024 to all CX1-JB*-HP devices
  ata: sata_mv:- Handle return value of devm_ioremap.
  perf/core: Fix PERF_RECORD_MMAP2 prot/flags for anonymous memory
  perf/core: Fix use-after-free bug
  crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes
  crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg
  drm/nouveau/nv1a,nv1f/disp: fix memory clock rate retrieval
  drm/nouveau/disp/gt215: Fix HDA ELD handling (thus, HDMI audio) on gt215
  drm/amdgpu/si: fix crash on headless asics
  pinctrl: baytrail: Add missing spinlock usage in byt_gpio_irq_handler
  HID: cp2112: fix gpio-callback error handling
  HID: cp2112: fix sleep-while-atomic
  xtensa: fix noMMU build on cores with MMU
  efi/fdt: Avoid FDT manipulation after ExitBootServices()
  x86/efi: Always map the first physical page into the EFI pagetables
  ext4: validate s_first_meta_bg at mount time
  PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
  ANDROID: sched: Add Kconfig option DEFAULT_USE_ENERGY_AWARE to set ENERGY_AWARE feature flag
  ANDROID: goldfish_sync: Fix sync_file_obj is NULL but dereferenced problem
  ANDROID: goldfish_sync: Isolate single module to fix compilation
  ANDROID: goldfish_sync: update defconfig for 4.9-compatible version
  ANDROID: goldfish_sync: upgrade to new fence sync api
  Linux 4.9.8
  xfs: fix bmv_count confusion w/ shared extents
  xfs: clear _XBF_PAGES from buffers when readahead page
  xfs: extsize hints are not unlikely in xfs_bmap_btalloc
  xfs: remove racy hasattr check from attr ops
  xfs: verify dirblocklog correctly
  xfs: fix COW writeback race
  xfs: fix xfs_mode_to_ftype() prototype
  xfs: don't wrap ID in xfs_dq_get_next_id
  xfs: sanity check inode di_mode
  xfs: sanity check inode mode when creating new dentry
  xfs: replace xfs_mode_to_ftype table with switch statement
  xfs: add missing include dependencies to xfs_dir2.h
  xfs: sanity check directory inode di_size
  xfs: make the ASSERT() condition likely
  xfs: don't print warnings when xfs_log_force fails
  xfs: don't rely on ->total in xfs_alloc_space_available
  xfs: adjust allocation length in xfs_alloc_space_available
  xfs: fix bogus minleft manipulations
  xfs: bump up reserved blocks in xfs_alloc_set_aside
  net: dsa: Bring back device detaching in dsa_slave_suspend()
  lwtunnel: Fix oops on state free after encap module unload
  net: Specify the owning module for lwtunnel ops
  qmi_wwan/cdc_ether: add device ID for HP lt2523 (Novatel E371) WWAN card
  af_unix: move unix_mknod() out of bindlock
  r8152: don't execute runtime suspend if the tx is not empty
  net: mpls: Fix multipath selection for LSR use case
  bridge: netlink: call br_changelink() during br_dev_newlink()
  net/mlx5e: Do not recycle pages from emergency reserve
  tcp: initialize max window for a new fastopen socket
  ipv6: addrconf: Avoid addrconf_disable_change() using RCU read-side lock
  lwtunnel: fix autoload of lwt modules
  net: phy: bcm63xx: Utilize correct config_intr function
  net: fix harmonize_features() vs NETIF_F_HIGHDMA
  vxlan: fix byte order of vxlan-gpe port number
  virtio-net: restore VIRTIO_HDR_F_DATA_VALID on receiving
  virtio: don't set VIRTIO_NET_HDR_F_DATA_VALID on xmit
  net sched actions: fix refcnt when GETing of action after bind
  ax25: Fix segfault after sock connection timeout
  ip6_tunnel: Account for tunnel header in tunnel MTU
  ravb: do not use zero-length alignment DMA descriptor
  mlx4: do not call napi_schedule() without care
  openvswitch: maintain correct checksum state in conntrack actions
  tcp: fix tcp_fastopen unaligned access complaints on sparc
  net: systemport: Decouple flow control from __bcm_sysport_tx_reclaim
  net: ipv4: fix table id in getroute response
  net: lwtunnel: Handle lwtunnel_fill_encap failure
  mlxsw: pci: Fix EQE structure definition
  mlxsw: switchx2: Fix memory leak at skb reallocation
  mlxsw: spectrum: Fix memory leak at skb reallocation
  netvsc: add rcu_read locking to netvsc callback
  r8152: fix the sw rx checksum is unavailable
  FROMLIST: 9p: fix a potential acl leak
  ANDROID: sched/walt: use do_div instead of division operator
  ANDROID: sched: fix wrong truncation of walt_avg
  ANDROID: arm: Fix #if/#ifdef typo in topology.c
  ANDROID: arm: Fix build error "conflicting types for 'scale_cpu_capacity'"
  ANDROID: net: ipv6: remove unused variable ifindex in
  ANDROID: DEBUG: cpufreq: fix cpu_capacity tracing build for non-smp systems
  ANDROID: arm: topology: Define TC2 energy and provide it to the scheduler
  ANDROID: binder: fix format specifier for type binder_size_t
  Linux 4.9.7
  drm/i915: Remove WaDisableLSQCROPERFforOCL KBL workaround.
  perf/core: Fix concurrent sys_perf_event_open() vs. 'move_group' race
  mm, memcg: do not retry precharge charges
  platform/x86: intel_mid_powerbtn: Set IRQ_ONESHOT
  platform/x86: mlx-platform: free first dev on error
  virtio_mmio: Set DMA masks appropriately
  memory_hotplug: make zone_can_shift() return a boolean value
  pinctrl: baytrail: Rectify debounce support
  pinctrl: uniphier: fix Ethernet (RMII) pin-mux setting for LD20
  pinctrl: broxton: Use correct PADCFGLOCK offset
  s5k4ecgx: select CRC32 helper
  IB/rxe: Prevent from completer to operate on non valid QP
  IB/rxe: Fix rxe dev insertion to rxe_dev_list
  IB/umem: Release pid in error and ODP flow
  drm/i915: Check for NULL atomic state in intel_crtc_disable_noatomic()
  drm/i915: Fix calculation of rotated x and y offsets for planar formats
  drm/i915: Don't init hpd polling for vlv and chv from runtime_suspend()
  drm/i915: Don't leak edid in intel_crt_detect_ddc()
  drm/i915: prevent crash with .disable_display parameter
  drm/i915: Clear ret before unbinding in i915_gem_evict_something()
  v4l: tvp5150: Don't override output pinmuxing at stream on/off time
  v4l: tvp5150: Fix comment regarding output pin muxing
  v4l: tvp5150: Reset device at probe time, not in get/set format handlers
  pctv452e: move buffer to heap, no mutex
  iw_cxgb4: free EQ queue memory on last deref
  SUNRPC: cleanup ida information when removing sunrpc module
  NFSv4.0: always send mode in SETATTR after EXCLUSIVE4
  NFSv4.1: Fix a deadlock in layoutget
  nfs: Don't increment lock sequence ID after NFS4ERR_MOVED
  parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header
  ARC: [arcompact] handle unaligned access delay slot corner case
  ARC: udelay: fix inline assembler by adding LP_COUNT to clobber list
  can: ti_hecc: add missing prepare and unprepare of the clock
  can: c_can_pci: fix null-pointer-deref in c_can_start() - set device pointer
  IB/srp: fix invalid indirect_sg_entries parameter value
  IB/srp: fix mr allocation when the device supports sg gaps
  IB/iser: Fix sg_tablesize calculation
  IB/cxgb3: fix misspelling in header guard
  s390/ptrace: Preserve previous registers for short regset write
  s390/mm: Fix cmma unused transfer from pgste into pte
  RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
  Btrfs: remove ->{get, set}_acl() from btrfs_dir_ro_inode_operations
  Btrfs: disable xattr operations on subvolume directories
  Btrfs: remove old tree_root case in btrfs_read_locked_inode()
  ISDN: eicon: silence misleading array-bounds warning
  xfs: prevent quotacheck from overloading inode lru
  sysctl: fix proc_doulongvec_ms_jiffies_minmax()
  userns: Make ucounts lock irq-safe
  vring: Force use of DMA API for ARM-based systems with legacy devices
  mm, page_alloc: fix premature OOM when racing with cpuset mems update
  mm, page_alloc: move cpuset seqcount checking to slowpath
  mm, page_alloc: fix fast-path race with cpuset update or removal
  mm, page_alloc: fix check for NULL preferred_zone
  mm/mempolicy.c: do not put mempolicy before using its nodemask
  mm/huge_memory.c: respect FOLL_FORCE/FOLL_COW for thp
  drm/atomic: clear out fence when duplicating state
  Revert "drm/radeon: always apply pci shutdown callbacks"
  drm/vc4: fix a bounds check
  drm/vc4: Return -EINVAL on the overflow checks failing.
  drm/vc4: Fix an integer overflow in temporary allocation layout.
  drm/vc4: Fix memory leak of the CRTC state.
  drm/i915: Ignore bogus plane coordinates on SKL when the plane is not visible
  drm: Fix broken VT switch with video=1366x768 option
  drm: Schedule the output_poll_work with 1s delay if we have delayed event
  tile/ptrace: Preserve previous registers for short regset write
  fbdev: color map copying bounds checking
  ANDROID: sched/walt: Drop arch-specific timer access
  ANDROID: sched/walt: include missing header for arm_timer_read_counter()
  ANDROID: fs: Export vfs_rmdir2
  ANDROID: fs: Export free_fs_struct and set_fs_pwd
  ANDROID: cpufreq: interactive: Use idle-end notifiers
  FROMLIST: cpufreq: Add android's 'interactive' governor
  ANDROID: cpufreq: conservative: fix duplicate 'static' error
  ANDROID: sdcardfs: eliminate the offset argument to ->direct_IO
  ANDROID: sdcardfs: make it use new .rename i_op
  ANDROID: sdcardfs: Propagate dentry down to inode_change_ok()
  ANDROID: sdcardfs: get rid of 'parent' argument of ->d_compare()
  ANDROID: sdcardfs: add parent pointer into dentry name hash
  ANDROID: sdcardfs: use wrappers to access i_mutex
  ANDROID: mnt: remount should propagate to slaves of slaves
  ANDROID: sdcardfs: Fix locking issue with permision fix up
  ANDROID: sdcardfs: Switch ->d_inode to d_inode()
  ANDROID: sdcardfs: Change magic value
  ANDROID: sdcardfs: Use per mount permissions
  ANDROID: sdcardfs: Add gid and mask to private mount data
  ANDROID: sdcardfs: User new permission2 functions
  ANDROID: vfs: Add permission2 for filesystems with per mount permissions
  ANDROID: vfs: Add setattr2 for filesystems with per mount permissions
  ANDROID: vfs: Allow filesystems to access their private mount data
  ANDROID: mnt: Add filesystem private data to mount points
  ANDROID: sdcardfs: Move directory unlock before touch
  ANDROID: sdcardfs: fix external storage exporting incorrect uid
  ANDROID: sdcardfs: Added top to sdcardfs_inode_info
  ANDROID: sdcardfs: Switch package list to RCU
  ANDROID: sdcardfs: Fix locking for permission fix up
  ANDROID: sdcardfs: Check for other cases on path lookup
  ANDROID: sdcardfs: override umask on mkdir and create
  ANDROID: sched/debug: Add energy procfs interface
  ANDROID: cpufreq: sched: Fix kernel crash on accessing sysfs file
  ANDROID: FIXUP: sched/tune: add fixes missing from a previous patch
  ANDROID: sched: tune: Fix lacking spinlock initialization
  ANDROID: cgroup: Remove leftover instances of allow_attach
  ANDROID: FIXUP: sched: scheduler-driven cpu frequency selection
  ANDROID: sched/rt: Add Kconfig option to enable panicking for RT throttling
  ANDROID: sched/rt: print RT tasks when RT throttling is activated
  ANDROID: sched/fair: Favor higher cpus only for boosted tasks
  ANDROID: sched/fair: call OPP update when going idle after migration
  ANDROID: sched/cpufreq_sched: fix thermal capping events
  ANDROID: sched/fair: Picking cpus with low OPPs for tasks that prefer idle CPUs
  ANDROID: FIXUP: sched/tune: do initialization as a postcore_initicall
  ANDROID: DEBUG: sched: add tracepoint for RD overutilized
  ANDROID: sched/tune: Introducing a new schedtune attribute prefer_idle
  ANDROID: sched: use util instead of capacity to select busy cpu
  ANDROID: arch_timer: add error handling when the MPM global timer is cleared
  ANDROID: FIXUP: sched: Fix double-release of spinlock in move_queued_task
  ANDROID: FIXUP: sched/fair: Fix hang during suspend in sched_group_energy
  ANDROID: FIXUP: sched: fix SchedFreq integration for both PELT and WALT
  ANDROID: sched: EAS: Avoid causing spikes to max-freq unnecessarily
  ANDROID: FIXUP: sched: fix set_cfs_cpu_capacity when WALT is in use
  ANDROID: sched/walt: Accounting for number of irqs pending on each core
  ANDROID: sched: Introduce Window Assisted Load Tracking (WALT)
  ANDROID: sched/tune: fix PB and PC cuts indexes definition
  ANDROID: sched/fair: optimize idle cpu selection for boosted tasks
  ANDROID: FIXUP: sched/tune: fix accounting for runnable tasks
  ANDROID: sched/tune: use a single initialisation function
  ANDROID: FIXUP: sched/tune: fix payoff calculation for boost region
  ANDROID: sched/tune: Add support for negative boost values
  ANDROID: FIX: sched/tune: move schedtune_nornalize_energy into fair.c
  ANDROID: FIX: sched/tune: update usage of boosted task utilisation on CPU selection
  ANDROID: sched/fair: add tunable to set initial task load
  ANDROID: sched/fair: add tunable to force selection at cpu granularity
  ANDROID: sched: EAS: take cstate into account when selecting idle core
  ANDROID: sched/cpufreq_sched: Consolidated update
  ANDROID: FIXUP: sched: fix build for non-SMP target
  ANDROID: DEBUG: sched/tune: add tracepoint on P-E space filtering
  ANDROID: DEBUG: sched/tune: add tracepoint for energy_diff() values
  ANDROID: DEBUG: sched/tune: add tracepoint for task boost signal
  CHROMIUM: sched: update the average of nr_running
  ANDROID: DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values
  ANDROID: DEBUG: schedtune: add tracepoint for CPU boost signal
  ANDROID: DEBUG: schedtune: add tracepoint for SchedTune configuration update
  ANDROID: DEBUG: sched,cpufreq: add cpu_capacity change tracepoint
  ANDROID: DEBUG: sched: add tracepoint for CPU load/util signals
  ANDROID: DEBUG: sched: add tracepoint for task load/util signals
  ANDROID: DEBUG: sched: add tracepoint for cpu/freq scale invariance
  ANDROID: sched/fair: filter energy_diff() based on energy_payoff value
  ANDROID: sched/tune: add support to compute normalized energy
  ANDROID: sched/fair: keep track of energy/capacity variations
  ANDROID: sched/fair: add boosted task utilization
  ANDROID: sched/{fair,tune}: track RUNNABLE tasks impact on per CPU boost value
  ANDROID: sched/tune: compute and keep track of per CPU boost value
  ANDROID: sched/tune: add initial support for CGroups based boosting
  ANDROID: sched/fair: add boosted CPU usage
  ANDROID: sched/fair: add function to convert boost value into "margin"
  ANDROID: sched/tune: add sysctl interface to define a boost value
  ANDROID: sched/tune: add detailed documentation
  ANDROID: fixup! sched: scheduler-driven cpu frequency selection
  ANDROID: sched: remove call of sched_avg_update from sched_rt_avg_update
  ANDROID: sched/cpufreq_sched: add trace events
  ANDROID: sched/fair: jump to max OPP when crossing UP threshold
  ANDROID: sched/fair: cpufreq_sched triggers for load balancing
  ANDROID: sched/{core,fair}: trigger OPP change request on fork()
  ANDROID: sched/fair: add triggers for OPP change requests
  ANDROID: sched: scheduler-driven cpu frequency selection
  ANDROID: cpufreq: introduce cpufreq_driver_is_slow
  ANDROID: sched: Add group_misfit_task load-balance type
  ANDROID: sched: Add per-cpu max capacity to sched_group_capacity
  ANDROID: sched: Do eas idle balance regardless of the rq avg idle value
  ANDROID: arm64: Enable max freq invariant scheduler load-tracking and capacity support
  ANDROID: arm: Enable max freq invariant scheduler load-tracking and capacity support
  ANDROID: sched: Update max cpu capacity in case of max frequency constraints
  ANDROID: cpufreq: Max freq invariant scheduler load-tracking and cpu capacity support
  ANDROID: sched: Disable energy-unfriendly nohz kicks
  ANDROID: sched: Consider a not over-utilized energy-aware system as balanced
  ANDROID: sched: Energy-aware wake-up task placement
  ANDROID: sched: Determine the current sched_group idle-state
  ANDROID: sched, cpuidle: Track cpuidle state index in the scheduler
  ANDROID: sched: Add over-utilization/tipping point indicator
  ANDROID: sched: Estimate energy impact of scheduling decisions
  ANDROID: sched: Extend sched_group_energy to test load-balancing decisions
  ANDROID: sched: Calculate energy consumption of sched_group
  ANDROID: sched: Highest energy aware balancing sched_domain level pointer
  ANDROID: sched: Relocated cpu_util() and change return type
  ANDROID: sched: Compute cpu capacity available at current frequency
  ANDROID: sched: Support for extracting EAS energy costs from DT
  ANDROID: arm64, topology: Updates to use DT bindings for EAS costing data
  ANDROID: arm64: Cpu invariant scheduler load-tracking and capacity support
  ANDROID: arm: Cpu invariant scheduler load-tracking and capacity support
  ANDROID: sched: Introduce SD_SHARE_CAP_STATES sched_domain flag
  ANDROID: sched: Initialize energy data structures
  ANDROID: sched: Make energy awareness a sched feature
  ANDROID: sched: Documentation for scheduler energy cost model
  ANDROID: sched: Prevent unnecessary active balance of single task in sched group
  ANDROID: sched: Enable idle balance to pull single task towards cpu with higher capacity
  ANDROID: sched: Consider spare cpu capacity at task wake-up
  ANDROID: sched: Add cpu capacity awareness to wakeup balancing
  ANDROID: arm: Update arch_scale_cpu_capacity() to reflect change to define
  ANDROID: arm64: Enable frequency invariant scheduler load-tracking support
  ANDROID: arm: Enable frequency invariant scheduler load-tracking support
  ANDROID: cpufreq: Frequency invariant scheduler load-tracking support
  ANDROID: [CPUFREQ] Don't export governors for default governor
  ANDROID: kernel/configs: recommended: CONFIG_ARM64_SW_TTBR0_PAN=y
  ANDROID: kernel/configs: base: Enable QUOTA related configs
  ANDROID: kernel/configs: recommended: Enable MEMORY_STATE_TIME
  FROMLIST: config: android-base: enable hardened usercopy and kernel ASLR
  FROMLIST: config: android-recommended: disable aio support
  ANDROID: kernel/configs: recommended: enable fstack-protector-strong
  ANDROID: kernel/configs: base: enable UID_CPUTIME
  ANDROID: kernel/configs: base: restrict access to perf events
  ANDROID: configs: base: enable configfs gadget functions
  ANDROID: configs: merge AOSP config fragments
  ANDROID: Implement memory_state_time, used by qcom,cpubw
  ANDROID: dm: rebase for 4.9
  ANDROID: usb: otg-wakelock: Remove wakelock.h dependencies
  ANDROID: gpio_matrix: Remove wakelock.h dependencies
  ANDROID: fiq_debugger: Remove wakelock.h dependencies
  UPSTREAM: net: socket: don't set sk_uid to garbage value in ->setattr()
  ANDROID: trace: net: use %pK for kernel pointers
  UPSTREAM: net: ipv4: Don't crash if passing a null sk to ip_rt_update_pmtu.
  UPSTREAM: net: inet: Support UID-based routing in IP protocols.
  UPSTREAM: net: core: add UID to flows, rules, and routes
  UPSTREAM: net: core: Add a UID field to struct sock.
  ANDROID: fs: FS tracepoints to track IO.
  ANDROID: MMC/UFS IO Latency Histograms.
  CHROMIUM: fix warning when releasing active sync point
  ANDROID: goldfish_pipe: fix allmodconfig build
  ANDROID: goldfish: goldfish_pipe: fix locking errors
  ANDROID: goldfish_pipe: fix call_kern.cocci warnings
  ANDROID: goldfish_pipe: An implementation of more parallel pipe
  ANDROID: goldfish_pipe: bugfixes and performance improvements.
  ANDROID: goldfish: disable GOLDFISH_SYNC
  ANDROID: goldfish: enable CONFIG_INET_DIAG_DESTROY
  ANDROID: build: fix build config kernel_dir
  ANDROID: dm verity: add minimum prefetch size
  ANDROID: build: add build server configs for goldfish
  UPSTREAM: trace: Update documentation for mono, mono_raw and boot clock
  UPSTREAM: trace: Add an option for boot clock as trace clock
  UPSTREAM: timekeeping: Add a fast and NMI safe boot clock
  ANDROID: video: goldfishfb: fix platform_no_drv_owner.cocci warnings
  ANDROID: arm64: rename ranchu defconfig to ranchu64
  ANDROID: arch: x86: disable pic for Android toolchain
  ANDROID: goldfish: Add goldfish sync driver
  ANDROID: goldfish: add ranchu defconfigs
  ANDROID: goldfish_audio: Clear audio read buffer status after each read
  ANDROID: goldfish_events: no extra EV_SYN; register goldfish
  ANDROID: goldfish_fb: Set pixclock = 0
  ANDROID: goldfish: Enable ACPI-based enumeration for goldfish audio
  ANDROID: goldfish: Enable ACPI-based enumeration for goldfish framebuffer
  ANDROID: video: goldfishfb: add devicetree bindings
  ANDROID: usb: gadget: function: cleanup: Add blank line after declaration
  ANDROID: usb: gadget: f_mtp: simplify ptp NULL pointer check
  ANDROID: usb: gadget: audio_source: fix comparison of distinct pointer types
  ANDROID: binder: support for file-descriptor arrays.
  ANDROID: binder: support for scatter-gather.
  ANDROID: binder: add extra size to allocator.
  ANDROID: binder: refactor binder_transact()
  ANDROID: binder: support multiple /dev instances.
  ANDROID: binder: deal with contexts in debugfs.
  ANDROID: binder: support multiple context managers.
  ANDROID: binder: split flat_binder_object.
  ANDROID: [RFC]cgroup: Change from CAP_SYS_NICE to CAP_SYS_RESOURCE for cgroup migration permissions
  CHROMIUM: cgroups: relax permissions on moving tasks between cgroups
  ANDROID: dm: android-verity: Remove fec_header location constraint
  ANDROID: fiq_debugger: Pass task parameter to unwind_frame()
  ANDROID: input: keyreset: switch to orderly_reboot
  ANDROID: cpuset: Make cpusets restore on hotplug
  ANDROID: Don't show empty tag stats for unprivileged uids
  ANDROID: dm: android-verity: Allow android-verity to be compiled as an independent module
  ANDROID: dm-verity: adopt changes made to dm callbacks
  ANDROID: dm verity fec: pack the fec_header structure
  ANDROID: dm: android-verity: Verify header before fetching table
  ANDROID: dm: allow adb disable-verity only in userdebug
  ANDROID: dm: mount as linear target if eng build
  ANDROID: dm: use default verity public key
  ANDROID: dm: fix signature verification flag
  ANDROID: dm: use name_to_dev_t
  ANDROID: dm: rename dm-linear methods for dm-android-verity
  ANDROID: dm: Minor cleanup
  ANDROID: dm: Mounting root as linear device when verity disabled
  ANDROID: dm-android-verity: Rebase on top of 4.1
  ANDROID: dm: Add android verity target
  ANDROID: dm: fix dm_substitute_devices()
  ANDROID: dm: Rebase on top of 4.9
  CHROMIUM: dm: boot time specification of dm=
  ANDROID: usb: gadget: f_accessory: remove duplicate endpoint alloc
  ANDROID: sdcardfs: fix itnull.cocci warnings
  ANDROID: sdcardfs: Truncate packages_gid.list on overflow
  ANDROID: netfilter: xt_quota2: make quota2_log work well
  ANDROID: cpu: send KOBJ_ONLINE event when enabling cpus
  ANDROID: dm verity fec: initialize recursion level
  ANDROID: dm verity fec: add missing release from fec_ktype
  ANDROID: dm verity fec: limit error correction recursion
  FROMLIST: security,perf: Allow further restriction of perf_event_open
  ANDROID: ARM64: Ignore Image-dtb from git point of view
  ANDROID: arm64: add option to build Image-dtb
  ANDROID: usb: gadget: f_midi: set fi->f to NULL when free f_midi function
  ANDROID: xt_qtaguid: Fix panic caused by processing non-full socket.
  ANDROID: fiq_debugger: Add fiq_debugger.disable option
  FROMLIST: wlcore: Disable filtering in AP role
  ANDROID: fiq_debugger: Add option to apply uart overlay by FIQ_DEBUGGER_UART_OVERLAY
  ANDROID: usb: dual-role: make stub functions inline
  ANDROID: quick selinux support for tracefs
  ANDROID: xt_qtaguid: Fix panic caused by synack processing
  ANDROID: fuse: Add support for d_canonical_path
  ANDROID: vfs: change d_canonical_path to take two paths
  ANDROID: netfilter: xt_qtaguid: seq_printf fixes
  ANDROID: mmc: Add CONFIG_MMC_SIMULATE_MAX_SPEED
  ANDROID: dm verity fec: add sysfs attribute fec/corrected
  ANDROID: mm: Export do_munmap
  ANDROID: sdcardfs: remove unneeded __init and __exit
  ANDROID: sdcardfs: Remove unused code
  ANDROID: fs: Export d_absolute_path
  ANDROID: sdcardfs: remove effectless config option
  ANDROID: inotify: Fix erroneous update of bit count
  ANDROID: fs: sdcardfs: Declare LOOKUP_CASE_INSENSITIVE unconditionally
  ANDROID: trace: cpufreq: fix typo in min/max cpufreq
  ANDROID: sdcardfs: Add support for d_canonical_path
  ANDROID: vfs: add d_canonical_path for stacked filesystem support
  ANDROID: sdcardfs: Bring up to date with Android M permissions:
  ANDROID: Changed type-casting in packagelist management
  ANDROID: Port of sdcardfs to 4.4
  ANDROID: Included sdcardfs source code for kernel 3.0
  ANDROID: usb: gadget: Add support for MTP OS desc
  CHROMIUM: usb: gadget: f_accessory: add .raw_request callback
  CHROMIUM: usb: gadget: audio_source: add .free_func callback
  CHROMIUM: usb: gadget: f_mtp: fix usb_ss_ep_comp_descriptor
  CHROMIUM: usb: gadget: f_mtp: Add SuperSpeed support
  ANDROID: dm-crypt: run in a WQ_HIGHPRI workqueue
  ANDROID: power: Provide dummy log_suspend_abort_reason() if SUSPEND is disabled
  ANDROID: PM / suspend: Add dependency on RTC_LIB
  ANDROID: net: pppolac/pppopns: Replace msg.msg_iov with iov_iter_kvec()
  ANDROID: mmc: sdio: Disable retuning in sdio_reset_comm()
  ANDROID: kernel/watchdog: fix unused variable warning
  ANDROID: usb: gadget: f_mtp: don't use le16 for u8 field
  ANDROID: lowmemorykiller: fix declaration order warnings
  ANDROID: mmc: move to a SCHED_FIFO thread
  ANDROID: skip building drivers as modules
  ANDROID: wakeup: Add the guard condition for len in pm_get_active_wakeup_sources
  ANDROID: goldfish: pipe: fix platform_no_drv_owner.cocci warnings
  ANDROID: epoll: use freezable blocking call
  ANDROID: Fix for in kernel emergency remount when loop mounts are used
  ANDROID: kbuild: Makefile.clean: make Kbuild and Makefile optional
  ANDROID: kbuild: make it possible to specify the module output dir
  ANDROID: ext4: Add support for FIDTRIM, a best-effort ioctl for deep discard trim
  ANDROID: hardlockup: detect hard lockups without NMIs using secondary cpus
  ANDROID: rtc-palmas: correct for bcd year
  ANDROID: w1: ds2482: Manage SLPZ pin sleep state
  ANDROID: fuse: Freeze client on suspend when request sent to userspace
  ANDROID: serial_core: Add wake_peer uart operation
  ANDROID: mm: add a field to store names for private anonymous memory
  ANDROID: pstore/ram: Add ramoops_console_write_buf api
  ANDROID: pstore: Update Documentation/android.txt
  ANDROID: initramfs: Add skip_initramfs command line option
  ANDROID: of: Fix build warnings
  ANDROID: of: fix CONFIG_CMDLINE_EXTEND
  ANDROID: ARM64: copy CONFIG_CMDLINE_EXTEND from ARM
  ANDROID: of: Support CONFIG_CMDLINE_EXTEND config option
  ANDROID: ARM: decompressor: Flush tlb before swiching domain 0 to client mode
  ANDROID: ARM64: add option to build Image.gz/dtb combo
  ANDROID: ARM: convert build of appended dtb zImage to list of dtbs
  ANDROID: ARM: add config option to build zImage/dtb combo
  ANDROID: ARM: Fix dtb list when DTB_IMAGE_NAMES is empty
  ANDROID: arm64: pass return address to dma_common_contiguous_remap
  ANDROID: arch: arm64: force -fno-pic
  ANDROID: arm64: process: dump memory around registers when displaying regs
  ANDROID: arm64: check for upper PAGE_SHIFT bits in pfn_valid()
  ANDROID: ARM: fault: assume no context when IRQs are disabled during data abort.
  ANDROID: ARM: Fix "Make low-level printk work" to use a separate config option
  ANDROID: ARM: add option to flush console before reboot
  ANDROID: ARM: Make low-level printk work
  ANDROID: Optionally flush entire dcache from v6_dma_flush_range
  ANDROID: process: Add display of memory around registers when displaying regs.
  ANDROID: security: Add proper checks for Android specific capability checks
  ANDROID: uid_cputime: skip power reporting per uid for now
  ANDROID: uid_cputime: Check for the range while removing range of UIDs.
  ANDROID: uid_cputime: Iterates over all the threads instead of processes.
  ANDROID: uid_cputime: fix cputime overflow
  ANDROID: uid_cputime: Avoids double accounting of process stime, utime and cpu_power in task exit.
  ANDROID: uid_cputime: Extends the cputime functionality to report power per uid
  ANDROID: proc: uid_cputime: fix show_uid_stat permission
  ANDROID: proc: uid_cputime: create uids from kuids
  ANDROID: proc: uid: Adds accounting for the cputimes per uid.
  ANDROID: fixup! proc: make oom adjustment files user read-only
  ANDROID: proc: make oom adjustment files user read-only
  ANDROID: proc: smaps: Allow smaps access for CAP_SYS_RESOURCE
  ANDROID: wakeup_reason: use vsnprintf instead of snsprintf for vargs.
  ANDROID: power: wakeup_reason: fix suspend time reporting
  ANDROID: wakeup: Add last wake up source logging for suspend abort reason.
  ANDROID: Power: Report suspend times from last_suspend_time
  ANDROID: Make suspend abort reason logging depend on CONFIG_PM_SLEEP
  ANDROID: power: Add check_wakeup_reason() to verify wakeup source irq
  ANDROID: power: Adds functionality to log the last suspend abort reason.
  ANDROID: power: Avoids bogus error messages for the suspend aborts.
  ANDROID: power: Add property CHARGE_COUNTER_EXT and 64-bit precision properties
  ANDROID: Power: Changes the permission to read only for sysfs file /sys/kernel/wakeup_reasons/last_resume_reason
  ANDROID: power: wakeup_reason: rename irq_count to irqcount
  ANDROID: Power: Add guard condition for maximum wakeup reasons
  ANDROID: POWER: fix compile warnings in log_wakeup_reason
  ANDROID: Power: add an API to log wakeup reasons
  ANDROID: PM / Suspend: Print wall time at suspend entry and exit
  ANDROID: power: power_supply: add POWER_SUPPLY_PROP_CHARGE_ENABLED
  ANDROID: power: power_supply: add POWER_SUPPLY_PROP_USB_OTG
  ANDROID: power: power_supply: move POWER_SUPPLY_PROP_USB_HC to type 'int' order
  ANDROID: power_supply: Add custom property for USB High Current mode
  ANDROID: trace: power: add trace_clock_set_parent
  ANDROID: trace: cpufreq: Add tracing for min/max cpufreq
  ANDROID: trace: fix compilation for 4.1
  ANDROID: trace/events: fix gpu event timestamp formatting
  ANDROID: trace: add non-hierarchical function_graph option
  ANDROID: trace: Add an option to show tgids in trace output
  ANDROID: trace/events: add gpu trace events
  ANDROID: sync: add Documentation/sync.txt
  ANDROID: ARM: Call idle notifiers
  ANDROID: Move x86_64 idle notifiers to generic
  ANDROID: cpuidle: governor: menu: don't use loadavg
  ANDROID: sched: add sched blocked tracepoint which dumps out context of sleep.
  ANDROID: sched: Enable might_sleep before initializing drivers.
  ANDROID: fiq_debugger: Build fixes for 4.1
  ANDROID: fiq_debugger: Add fiq_watchdog_triggered api
  ANDROID: fiq_debugger: Call fiq_debugger_printf through a function pointer from cpu specific code
  ANDROID: fiq_debugger: add ARM64 support
  ANDROID: fiq_debugger: split arm support into fiq_debugger_arm.c
  ANDROID: fiq_debugger: use pt_regs for registers
  ANDROID: fiq_debugger: allow compiling without CONFIG_FIQ_GLUE
  ANDROID: fiq_debugger: rename debug->fiq_debugger
  ANDROID: fiq_debugger: move into drivers/staging/android/fiq_debugger/
  ANDROID: ARM: fiq_glue: Add custom fiq return handler api.
  ANDROID: ARM: kgdb: ignore breakpoint instructions from user mode
  ANDROID: ARM: fiq_debugger: Update tty code for 3.9
  ANDROID: ARM: fiq_debugger: Use kmsg_dumper to dump kernel logs
  ANDROID: ARM: fiq_debugger: Fix to compile on 3.7
  ANDROID: ARM: fiq_debugger: fix uninitialised spin_lock.
  ANDROID: ARM: fiq_debugger: lock between tty and console writes
  ANDROID: ARM: fiq_debugger: add process context reboot command
  ANDROID: ARM: fiq_debugger: fix multiple consoles and make it a preferred console
  ANDROID: kdb: support new lines without carriage returns
  ANDROID: ARM: fiq_debugger: add support for kgdb
  ANDROID: ARM: fiq_debugger: add debug_putc
  ANDROID: ARM: fiq_debugger: add support for reboot commands
  ANDROID: ARM: fiq_debugger: fix compiling for v3.3
  ANDROID: ARM: Add generic fiq serial debugger
  ANDROID: ARM: Add fiq_glue
  ANDROID: fix false disconnect due to a signal sent to the reading process
  ANDROID: usb: gadget: cleanup: fix unused variable and function warnings
  ANDROID: usb: gadget: build audio_source function only if SND is enabled
  ANDROID: usb: gadget: configfs: handle gadget reset request for android
  ANDROID: usb: gadget: create F_midi device
  ANDROID: usb: gadget: Add device attribute to determine gadget state
  ANDROID: usb: phy: fix dual role sysfs build if kernel modules are supported
  ANDROID: usb: phy: Dual role sysfs class definition
  ANDROID: usb: gadget: fix NULL ptr derefer while symlinking PTP func
  ANDROID: usb:gadget:Add "state" attribute to android_device
  ANDROID: usb: gadget: Do not disconnect unregistered dev
  ANDROID: usb: gadget: Relocate f_accessory
  ANDROID: usb: gadget: Accessory:Migrate to USB_FUNCTION API
  ANDROID: usb: gadget: Move gadget functions code
  ANDROID: usb:gadget:audio_source: Move to USB_FUNCTION API
  ANDROID: usb: gadget: Add function devices to the parent
  ANDROID: usb: gadget: f_audio_source:replace deprecated API
  ANDROID: usb: gadget: check for accessory device before disconnecting HIDs
  ANDROID: usb: gadget: Add Uevent to notify userspace
  ANDROID: usb: gadget: configfs: Add usb_function ptr to fi struct
  ANDROID: usb: gadget: mtp/ptp: Migrate functions to the USB_FUNCTION interface
  Linux 4.9.6
  libceph: stop allocating a new cipher on every crypto request
  libceph: uninline ceph_crypto_key_destroy()
  tools/virtio/ringtest: fix run-on-all.sh for offline cpus
  selftest/powerpc: Wrong PMC initialized in pmc56_overflow test
  soc: ti: wkup_m3_ipc: Fix error return code in wkup_m3_ipc_probe()
  spi: pxa2xx: add missed break
  dmaengine: pl330: Fix runtime PM support for terminated transfers
  dmaengine: rcar-dmac: unmap slave resource when channel is freed
  s5p-mfc: Fix clock management in s5p_mfc_release() function
  s5p-cec: mark PM functions as __maybe_unused again
  st-hva: fix some error handling in hva_hw_probe()
  ite-cir: initialize use_demodulator before using it
  gs1662: drop kfree for memory allocated with devm_kzalloc
  platform: pxa_camera: add VIDEO_V4L2 dependency
  blackfin: check devm_pinctrl_get() for errors
  rpmsg: virtio_rpmsg_bus: fix channel creation
  mtd: spi-nor: Fix some error codes in cqspi_setup_flash()
  mtd: spi-nor: Off by one in cqspi_setup_flash()
  PM / devfreq: Fix the bug of devfreq_add_device when governor is NULL
  PM / devfreq: exynos-bus: Fix the wrong return value
  scsi: mpt3sas: fix hang on ata passthrough commands
  scsi: ses: Fix SAS device detection in enclosure
  swiotlb: Add swiotlb=noforce debug option
  swiotlb: Convert swiotlb_force from int to enum
  arm64: Fix swiotlb fallback allocation
  arm64: mm: avoid name clash in __page_to_voff()
  xprtrdma: Squelch "max send, max recv" messages at connect time
  xprtrdma: Make FRWR send queue entry accounting more accurate
  libceph: make sure ceph_aes_crypt() IV is aligned
  ceph: fix endianness bug in frag_tree_split_cmp
  ceph: fix endianness of getattr mask in ceph_d_revalidate
  ceph: fix ceph_get_caps() interruption
  ceph: fix scheduler warning due to nested blocking
  ARM: 8613/1: Fix the uaccess crash on PB11MPCore
  ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation
  ARM: dts: omap3: Fix Card Detect and Write Protect on Logic PD SOM-LV
  ARM: dts: imx6qdl-nitrogen6_max: fix sgtl5000 pinctrl init
  ARM: dts: omap2: Add an empty chosen node to top level DTSI
  ARM: dts: omap3: Add an empty chosen node to top level DTSI
  ARM: dts: am4372: Add an empty chosen node to top level DTSI
  ARM: dts: omap5: Add an empty chosen node to top level DTSI
  ARM: dts: omap4: Add an empty chosen node to top level DTSI
  ARM: dts: am33xx: Add an empty chosen node to top level DTSI
  ARM: dts: dm814x: Add an empty chosen node to top level DTSI
  ARM: dts: dm816x: Add an empty chosen node to top level DTSI
  ARM: dts: dra7: Add an empty chosen node to top level DTSI
  libceph: remove now unused ceph_*{en,de}crypt*() functions
  libceph: switch ceph_x_decrypt() to ceph_crypt()
  libceph: switch ceph_x_encrypt() to ceph_crypt()
  libceph: tweak calcu_signature() a little
  libceph: rename and align ceph_x_authorizer::reply_buf
  libceph: introduce ceph_crypt() for in-place en/decryption
  libceph: introduce ceph_x_encrypt_offset()
  libceph: old_key in process_one_ticket() is redundant
  libceph: ceph_x_encrypt_buflen() takes in_len
  Input: ALPS - fix TrackStick support for SS5 hardware
  arm64/ptrace: Reject attempts to set incomplete hardware breakpoint fields
  arm64/ptrace: Avoid uninitialised struct padding in fpr_set()
  arm64/ptrace: Preserve previous registers for short regset write - 3
  arm64/ptrace: Preserve previous registers for short regset write - 2
  arm64/ptrace: Preserve previous registers for short regset write
  arm64: avoid returning from bad_mode
  ARM: dts: da850-evm: fix read access to SPI flash
  ARM: dts: OMAP5 / DRA7: indicate that SATA port 0 is available.
  ceph: fix bad endianness handling in parse_reply_info_extra
  ibmvscsis: Fix max transfer length
  ibmvscsis: Fix sleeping in interrupt context
  ARM: 8634/1: hw_breakpoint: blacklist Scorpion CPUs
  svcrdma: avoid duplicate dma unmapping during error recovery
  clocksource/exynos_mct: Clear interrupt when cpu is shut down
  ubifs: Fix journal replay wrt. xattr nodes
  mac80211: implement multicast forwarding on fast-RX path
  qla2xxx: Fix crash due to null pointer access
  x86/ioapic: Restore IO-APIC irq_chip retrigger callback
  powerpc: Ignore reserved field in DCSR and PVR reads and writes
  powerpc/ptrace: Preserve previous TM fprs/vsrs on short regset write
  powerpc/ptrace: Preserve previous fprs/vsrs on short regset write
  powerpc/perf: Fix PM_BRU_CMPL event code for power9
  powerpc/icp-opal: Fix missing KVM case and harden replay
  KVM: arm/arm64: vgic: Fix deadlock on error handling
  KVM: s390: do not expose random data via facility bitmap
  mtd: nand: xway: fix build because of module functions
  mtd: nand: xway: disable module support
  mtd: nand: lpc32xx: fix invalid error handling of a requested irq
  ieee802154: atusb: do not use the stack for buffers to make them DMA able
  mmc: mxs-mmc: Fix additional cycles after transmission stop
  mmc: sdhci-acpi: Only powered up enabled acpi child devices
  HID: corsair: fix control-transfer error handling
  HID: corsair: fix DMA buffers on stack
  PCI: Enumerate switches below PCI-to-PCIe bridges
  PCI: designware: Check for iATU unroll only on platforms that use ATU
  fuse: fix time_to_jiffies nsec sanity check
  fuse: clear FR_PENDING flag when moving requests out of pending queue
  ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds
  libnvdimm, namespace: fix pmem namespace leak, delete when size set to zero
  svcrpc: don't leak contexts on PROC_DESTROY
  sunrpc: don't call sleeping functions from the notifier block callbacks
  rcu: Narrow early boot window of illegal synchronous grace periods
  rcu: Remove cond_resched() from Tiny synchronize_sched()
  x86/PCI: Ignore _CRS on Supermicro X8DTH-i/6/iF/6F
  tmpfs: clear S_ISGID when setting posix ACLs
  ARM: dts: omap3: Add DTS for Logic PD SOM-LV 37xx Dev Kit
  ARM: dts: imx31: fix AVIC base address
  ARM: dts: imx31: move CCM device node to AIPS2 bus devices
  ARM: dts: imx31: fix clock control module interrupts description
  ARM: dts: imx6q-cm-fx6: fix fec pinctrl
  ARM: dts: r8a7794: remove Z clock
  ARM: dts: r8a7794: Use SYSC "always-on" PM Domain for sound
  ARM: dts: bcm283x: fix typo in mailbox address
  perf jit: Enable jitdump support without dwarf
  perf scripting: Avoid leaking the scripting_context variable
  perf callchain: Fixup help/config for no-unwinding
  perf diff: Do not overwrite valid build id
  perf trace: Check if MAP_32BIT is defined (again)
  perf mem: Fix --all-user/--all-kernel options
  perf trace: Use the syscall raw_syscalls:sys_enter timestamp
  IB/IPoIB: Remove can't use GFP_NOIO warning
  IB/mlx4: Check if GRH is available before using it
  IB/mlx4: When no DMFS for IPoIB, don't allow NET_IF QPs
  IB/mlx4: Fix port query for 56Gb Ethernet links
  IB/mlx4: Handle well-known-gid in mad_demux processing
  IB/mlx4: Fix out-of-range array index in destroy qp flow
  IB/mlx4: Set traffic class in AH
  IB/mlx5: Wait for all async command completions to complete
  IB/mlx5: Assign SRQ type earlier
  IB/mlx5: Fix reported max SGE calculation
  IB/mlx5: Avoid system crash when enabling many VFs
  IB/rxe: avoid putting a large struct rxe_qp on stack
  IB/rxe: Increase max number of completions to 32k
  IB/core: Release allocated memory in cache setup failure
  Linux 4.9.5
  ANDROID: usb: gadget: f_audio_source: Fixed USB Audio Class Interface Descriptor
  ANDROID: usb: gadget: f_audio_source: change max ISO packet size
  ANDROID: usb: gadget: f_accessory: Enabled Zero Length Packet (ZLP) for acc_write
  ANDROID: drivers: usb: gadget: 64-bit related type fixes
  ANDROID: usb: gadget: f_accessory: move userspace interface to uapi
  ANDROID: usb: gadget: f_mtp: move userspace interface to uapi
  ANDROID: USB: remove duplicate out endpoint creation in MTP mode
  ANDROID: usb: gadget: Fix android gadget driver build
  ANDROID: usb: gadget: Fixes and hacks to make android usb gadget compile on 3.8
  ANDROID: usb: otg: otg-wakelock: Fix build for 3.7
  ANDROID: usb: gadget: accessory: Fix section mismatch (again)
  ANDROID: USB: gadget: f_audio_source: New gadget driver for audio output
  ANDROID: USB: gadget: f_accessory: Add support for HID input devices
  ANDROID: USB: gadget: Add ACCESSORY_SET_AUDIO_MODE control request and ioctl
  ANDROID: usb: gadget: accessory: Fix section mismatch
  ANDROID: usb: otg: otg-wakelock: Fix build for 3.4
  ANDROID: usb: gadget: adb: Only enable the gadget when adbd is ready
  ANDROID: usb: gadget: adb: do not set error flag when dequeuing req
  ANDROID: usb: gadget: adb: allow freezing in adb_read
  ANDROID: usb: gadget: accessory: Add Android Accessory function
  ANDROID: usb: gadget: adb: Add ADB function
  ANDROID: usb: gadget: mtp: Add MTP/PTP function
  ANDROID: usb: otg: otg-wakelock: fix build for 3.3
  ANDROID: usb: otg: Temporarily grab wakelock on charger and disconnect events
  ANDROID: USB: OTG: Take wakelock when VBUS present
  ANDROID: wlan: Add get_wake_irq functionality
  ANDROID: Add flags parameter to get_country_code template
  ANDROID: net: wireless: Add get_country_code functionality to platform
  ANDROID: network: wireless: Add get_mac_addr functionality to platform
  ANDROID: wlan: Create generic wlan platform data header
  ANDROID: net: wireless: Decrease scan entry expiration to avoid stall results
  ANDROID: bridge: Have tx_bytes count headers like rx_bytes.
  ANDROID: rfkill: Introduce CONFIG_RFKILL_PM and use instead of CONFIG_PM to power down
  ANDROID: net: ipv6: fix virtual tunneling build
  ANDROID: tcp: fix tcp_default_init_rwnd() for 4.1
  ANDROID: net: support marking accepting TCP sockets
  ANDROID: tcp: add a sysctl to config the tcp_default_init_rwnd
  ANDROID: xt_qtaguid: fix a race condition in if_tag_stat_update
  ANDROID: netfilter: xt_qtaguid/socket: build fixes for 4.4
  ANDROID: netfilter: xt_qtaguid: xt_socket: build fixes
  ANDROID: net: xt_qtaguid/xt_socket: fix refcount underflow and crash
  ANDROID: xt_qtaguid: use sock_gen_put() instead of xt_socket_put_sk()
  ANDROID: xt_qtaguid: Use sk_callback_lock read locks before reading sk->sk_socket
  ANDROID: xt_qtaguid: fix broken uid/gid range check
  ANDROID: netfilter: Build fixups - kuid/kguid changes & xt_socket_get/put_sk
  ANDROID: net: ipv6: autoconf routes into per-device tables
  ANDROID: nf: IDLETIMER: Fix broken uid field in the msg
  ANDROID: nf: IDLETIMER: Adds the uid field in the msg
  ANDROID: netfilter: fix seq_printf type mismatch warning
  ANDROID: nf: Remove compilation error caused by e8430cbed3ef15fdb1ac26cfd020e010aa5f1c35
  ANDROID: nf: IDLETIMER: time-stamp and suspend/resume handling.
  ANDROID: xt_qtaguid: Fix boot panic
  ANDROID: net: kuid/kguid build fixes
  ANDROID: netfilter: ipv6: fix crash caused by ipv6_find_hdr()
  ANDROID: netfilter: xt_qtaguid: 64-bit warning fixes
  ANDROID: netfilter: xt_qtaguid: fix memory leak in seq_file handlers
  ANDROID: netfilter: xt_qtaguid: fix bad tcp_time_wait sock handling
  ANDROID: netfilter: xt_qtaguid: 3.10 fixes
  ANDROID: netfilter: xt_quota2: 3.10 fixes.
  ANDROID: netfilter: qtaguid: rate limit some of the printks
  ANDROID: netfilter: xt_qtaguid: Allow tracking loopback
  ANDROID: netfilter: xt_qtaguid: extend iface stat to report protocols
  ANDROID: netfilter: xt_qtaguid: remove AID_* dependency for access control
  ANDROID: netfilter: qtaguid: Don't BUG_ON if create_if_tag_stat fails
  ANDROID: netfilter: xt_qtaguid: fix error exit that would keep a spinlock.
  ANDROID: netfilter: xt_qtaguid: report only uid tags to non-privileged processes
  ANDROID: netfilter: xt_qtaguid: start tracking iface rx/tx at low level
  ANDROID: netfilter: xt_IDLETIMER: Add new netlink msg type
  ANDROID: netfilter: xt_qtaguid: fix ipv6 protocol lookup
  ANDROID: netfilter: qtaguid: initialize a local var to keep compiler happy.
  ANDROID: netfilter: fixup the quota2, and enable.
  ANDROID: netfilter: adding the original quota2 from xtables-addons
  ANDROID: netfilter: add xt_qtaguid matching module
  ANDROID: net: PPPoPNS and PPPoLAC build fixes for 4.4
  ANDROID: Hack: net: PPPoPNS and PPPoLAC build fixes for 4.1
  ANDROID: net: pppopns: pppolac: fix sendmsg function calls
  ANDROID: net: PPPoPNS: Remove length argument from data_ready
  ANDROID: net: move PPPoLAC and PPPoPNS headers to uapi
  ANDROID: Include if_pppolac.h and if_pppopns.h into header-y target
  ANDROID: net: PPPoPNS and PPPoLAC update to use PPP_MRU instead of PPP_MRU
  ANDROID: net: Reorder incoming packets in PPPoLAC and PPPoPNS.
  ANDROID: net: PPPoPNS and PPPoLAC fixes.
  ANDROID: net: add PPP on PPTP Network Server (PPPoPNS) driver.
  ANDROID: net: add PPP on L2TP Access Concentrator (PPPoLAC) driver.
  ANDROID: sysfs_net_ipv4: Add sysfs-based knobs for controlling TCP window size
  ANDROID: net: Only NET_ADMIN is allowed to fully control TUN interfaces.
  ANDROID: net: Replace AID_NET_RAW checks with capable(CAP_NET_RAW).
  ANDROID: security: Add AID_NET_RAW and AID_NET_ADMIN capability check in cap_capable().
  ANDROID: Paranoid network.
  ANDROID: Add android_aid.h
  ANDROID: fs: block_dump: Don't display inode changes if block_dump < 2
  ANDROID: mmc: core: Remove stray CONFIG_EXPERIMENTAL dependencies
  ANDROID: mmc: Add "ignore mmc pm notify" functionality
  ANDROID: mmc: sdio: Fix sdio_reset_comm for sync
  ANDROID: mmc: sdio: fix sdio_reset_comm() voltage selection
  ANDROID: mmc: sdio: Fix enable_hs and enable_wide in sdio_reset_comm()
  ANDROID: mmc: sdio: Add high speed support to sdio_reset_comm()
  ANDROID: mmc: sdio: Claim host in sdio_reset_comm()
  ANDROID: mmc: Add new API call 'sdio_reset_comm' for resetting communication with an SDIO device
  ANDROID: mmc: Add sdio_readb_ext() function
  ANDROID: mmc: Add concept of an 'embedded' SDIO device.
  ANDROID: mmc: sd: Add retries in re-detection
  ANDROID: mmc: sd: When resuming, try a little harder to init the card
  ANDROID: mmc: sd: Add new CONFIG_MMC_PARANOID_SD_INIT for enabling retries during SD detection
  ANDROID: mtd: nand: Allow NAND chip ids to be included standalone.
  ANDROID: gpio_input: convert from wakelocks to wakeup sources
  ANDROID: input: Made keyreset more robust
  ANDROID: input: Changed keyreset to act as a wrapper for keycombo.
  ANDROID: input: add keycombo, a general key combo driver.
  ANDROID: input: misc: keychord: move header to uapi
  ANDROID: input: misc: keychord: log when keychord triggered
  ANDROID: input: keychord: Add keychord driver
  ANDROID: input: Add keyreset driver.
  ANDROID: input: misc: gpio_event: remove early suspend
  ANDROID: Input: Generic GPIO Input device.
  ANDROID: lowmemorykiller: use module_param_cb instead of __module_param_call
  ANDROID: lowmemorykiller: trace kill events.
  ANDROID: staging: lowmemorykiller: Add config option to support oom_adj values
  pinctrl: sh-pfc: Do not unconditionally support PIN_CONFIG_BIAS_DISABLE
  arm64: hugetlb: fix the wrong return value for huge_ptep_set_access_flags
  arm64: hugetlb: remove the wrong pmd check in find_num_contig()
  arm64: hugetlb: fix the wrong address for several functions
  powerpc/powernv: Don't warn on PE init if unfreeze is unsupported
  powerpc/ibmebus: Fix device reference leaks in sysfs interface
  powerpc/ibmebus: Fix further device reference leaks
  powerpc/mm: Correct process and partition table max size
  bus: vexpress-config: fix device reference leak
  blk-mq: Always schedule hctx->next_cpu
  power: supply: bq27xxx_battery: Fix register map for BQ27510 and BQ27520
  bq24190_charger: Fix PM runtime use for bq24190_battery_set_property
  iw_cxgb4: Fix error return code in c4iw_rdev_open()
  powercap/intel_rapl: fix and tidy up error handling
  ACPI / APEI: Fix NMI notification handling
  block: cfq_cpd_alloc() should use @gfp
  block: Change extern inline to static inline
  ACPI / CPPC: set an error code on probe error path
  regulators: helpers: Fix handling of bypass_val_on in get_bypass_regmap
  cpufreq: powernv: Disable preemption while checking CPU throttling state
  powerpc/64: Simplify adaptation to new ISA v3.00 HPTE format
  remoteproc: st: Fix error return code in st_rproc_probe()
  remoteproc: qcom_wcnss: Fix circular module dependency
  drm: Initialise drm_mm.head_node.allocated
  drm/i915: Move the min_pixclk[] handling to the end of readout
  drm/panel: simple: Check against num_timings when setting preferred for timing
  drm: avoid uninitialized timestamp use in wait_vblank
  drm/i915/gen9: Fix PCODE polling during SAGV disabling
  i2c: mux: pca954x: fix i2c mux selection caching
  NFSv4.1: nfs4_fl_prepare_ds must be careful about reporting success.
  NFS: Fix a performance regression in readdir
  pNFS: Fix race in pnfs_wait_on_layoutreturn
  NFS: fix typo in parameter description
  pinctrl: meson: fix gpio request disabling other modes
  btrfs: fix error handling when run_delayed_extent_op fails
  btrfs: fix locking when we put back a delayed ref that's too new
  nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too
  x86/cpu: Fix bootup crashes by sanitizing the argument of the 'clearcpuid=' command-line option
  i2c: piix4: Avoid race conditions with IMC
  net/mlx5: Only cancel recovery work when cleaning up device
  USB: serial: ch341: fix modem-control and B0 handling
  drm/amdgpu: drop verde dpm quirks
  drm/amdgpu: update si kicker smc firmware
  drm/radeon: drop verde dpm quirks
  drm/radeon: update smc firmware selection for SI
  drm: Clean up planes in atomic commit helper failure path
  drm/i915/gen9: Fix PCODE polling timeout in stable backport
  net/af_iucv: don't use paged skbs for TX on HiperSockets
  sysctl: Drop reference added by grab_header in proc_sys_readdir
  Clearing FIFOs in RS485 emulation mode causes subsequent transmits to break
  extcon: return error code on failure
  sysrq: attach sysrq handler correctly for 32-bit kernel
  orinoco: Use shash instead of ahash for MIC calculations
  ibmvscsis: Fix srp_transfer_data fail return code
  tty/serial: atmel_serial: BUG: stop DMA from transmitting in stop_tx
  tty/serial: atmel: RS485 half duplex w/DMA: enable RX after TX is done
  virtio_blk: avoid DMA to stack for the sense buffer
  dmaengine: omap-dma: Fix dynamic lch_map allocation
  drivers: char: mem: Fix thinkos in kmem address checks
  mnt: Protect the mountpoint hashtable with mount_lock
  pid: fix lockdep deadlock warning due to ucount_lock
  vme: Fix wrong pointer utilization in ca91cx42_slave_get
  Revert "tty: serial: 8250: add CON_CONSDEV to flags"
  ASoC: hdmi-codec: use unsigned type to structure members with bit-field
  btrfs: fix crash when tracepoint arguments are freed by wq callbacks
  xhci: fix deadlock at host remove by running watchdog correctly
  fix a fencepost error in pipe_advance()
  i2c: fix kernel memory disclosure in dev interface
  i2c: print correct device invalid address
  Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data
  USB: serial: ch341: fix open and resume after B0
  USB: serial: ch341: fix control-message error handling
  USB: serial: ch341: fix open error handling
  USB: serial: ch341: fix resume after reset
  USB: serial: ch341: fix initial modem-control state
  USB: serial: kl5kusb105: fix line-state error handling
  usb: musb: fix runtime PM in debugfs
  wusbcore: Fix one more crypto-on-the-stack bug
  x86/CPU/AMD: Fix Bulldozer topology
  x86/bugs: Separate AMD E400 erratum and C1E bug
  x86/cpu/AMD: Clean up cpu_llc_id assignment per topology feature
  bridge: netfilter: Fix dropping packets that moving through bridge interface
  xfs: Timely free truncated dirty pages
  gpio: Move freeing of GPIO hogs before numbing of the device
  nl80211: fix sched scan netlink socket owner destruction
  x86/efi: Don't allocate memmap through memblock after mm_init()
  efi/x86: Prune invalid memory map entries and fix boot regression
  efi/libstub/arm*: Pass latest memory map to the kernel
  KVM: x86: Introduce segmented_write_std
  KVM: x86: emulate FXSAVE and FXRSTOR
  KVM: x86: add asm_safe wrapper
  KVM: x86: add Align16 instruction flag
  KVM: x86: fix NULL deref in vcpu_scan_ioapic
  KVM: x86: flush pending lapic jump label updates on module unload
  jump_labels: API for flushing deferred jump label updates
  KVM: eventfd: fix NULL deref irqbypass consumer
  KVM: x86: fix emulation of "MOV SS, null selector"
  mm/hugetlb.c: fix reservation race when freeing surplus pages
  mm/slab.c: fix SLAB freelist randomization duplicate entries
  mm: support anonymous stable page
  mm, memcg: fix the active list aging for lowmem requests when memcg is enabled
  ocfs2: fix crash caused by stale lvb with fsdlm plugin
  mm: fix devm_memremap_pages crash, use mem_hotplug_{begin, done}
  mm: pmd dirty emulation in page fault handler
  dax: fix deadlock with DAX 4k holes
  zram: support BDI_CAP_STABLE_WRITES
  zram: revalidate disk under init_lock
  selftests: do not require bash for the generated test
  selftests: do not require bash to run netsocktests testcase
  drm/savage: dereferencing an error pointer
  drm/vc4: Fix a couple error codes in vc4_cl_lookup_bos()
  drm/tegra: dpaux: Fix error handling
  regulator: axp20x: Fix axp809 ldo_io registration error on cold boot
  regulator: tps65086: Fix 25mV ranges for BUCK regulators
  pinctrl: sh-pfc: Add helper to handle bias lookup table
  pinctrl: sh-pfc: r8a7795: Use lookup function for bias data
  pinctrl: imx: fix imx_pinctrl_desc initialization
  Input: i8042 - add Pegatron touchpad to noloop table
  Input: xpad - use correct product id for x360w controllers
  Linux 4.9.4
  rtlwifi: rtl_usb: Fix missing entry in USB driver's private data
  rtlwifi: Fix enter/exit power_save
  drm/i915/gen9: Fix PCODE polling during CDCLK change notification
  ALSA: usb-audio: Add a quirk for Plantronics BT600
  spi: mvebu: fix baudrate calculation for armada variant
  ARM: omap2+: am437x: rollback to use omap3_gptimer_timer_init()
  ARM: 8631/1: clkdev: Detect errors in clk_hw_register_clkdev() for mass registration
  ARM: OMAP4+: Fix bad fallthrough for cpuidle
  ARM: OMAP5: Fix build for PM code
  ARM: OMAP5: Fix mpuss_early_init
  bus: arm-ccn: Prevent hotplug callback leak
  svcrdma: Clear xpt_bc_xps in xprt_setup_rdma_bc() error exit arm
  ARM: qcom_defconfig: Fix MDM9515 LCC and GCC config
  ARM: zynq: Reserve correct amount of non-DMA RAM
  ARM: pxa: fix pxa25x interrupt init
  ARM64: dts: bcm2835: Fix bcm2837 compatible string
  ARM64: dts: bcm2837-rpi-3-b: remove incorrect pwr LED
  arm64: dts: mt8173: Fix auxadc node
  tools/virtio: fix READ_ONCE()
  powerpc: Fix build warning on 32-bit PPC
  ALSA: firewire-tascam: Fix to handle error from initialization of stream data
  HID: hid-cypress: validate length of report
  net: vrf: do not allow table id 0
  net: ipv4: Fix multipath selection with vrf
  net/mlx5e: Remove WARN_ONCE from adaptive moderation code
  gro: Disable frag0 optimization on IPv6 ext headers
  gro: use min_t() in skb_gro_reset_offset()
  gro: Enter slow-path if there is no tailroom
  net: add the AF_QIPCRTR entries to family name tables
  net: dsa: Ensure validity of dst->ds[0]
  r8152: fix rx issue for runtime suspend
  r8152: split rtl8152_suspend function
  net: dsa: bcm_sf2: Utilize nested MDIO read/write
  net: dsa: bcm_sf2: Do not clobber b53_switch_ops
  bpf: change back to orig prog on too many passes
  net: vrf: Add missing Rx counters
  ipv4: Do not allow MAIN to be alias for new LOCAL w/ custom rules
  igmp: Make igmp group member RFC 3376 compliant
  flow_dissector: Update pptp handling to avoid null pointer deref.
  drop_monitor: consider inserted data in genlmsg_end
  drop_monitor: add missing call to genlmsg_end
  net: ipv4: dst for local input routes should use l3mdev if relevant
  net: fix incorrect original ingress device index in PKTINFO
  rtnl: stats - add missing netlink message size checks
  net/mlx5e: Disable netdev after close
  net/mlx5e: Don't sync netdev state when not registered
  net/mlx5: Prevent setting multicast macs for VFs
  net/mlx5: Mask destination mac value in ethtool steering rules
  net/mlx5: Avoid shadowing numa_node
  net/mlx5: Cancel recovery work in remove flow
  net/mlx5: Check FW limitations on log_max_qp before setting it
  net/sched: cls_flower: Fix missing addr_type in classify
  net: stmmac: Fix race between stmmac_drv_probe and stmmac_open
  net, sched: fix soft lockup in tc_classify
  ipv6: handle -EFAULT from skb_copy_bits
  inet: fix IP(V6)_RECVORIGDSTADDR for udp sockets
  sctp: sctp_transport_lookup_process should rcu_read_unlock when transport is null
  net: vrf: Drop conntrack data after pass through VRF device on Tx
  net: vrf: Fix NAT within a VRF
  Linux 4.9.3
  usb: gadget: composite: always set ep->mult to a sensible value
  Revert "usb: gadget: composite: always set ep->mult to a sensible value"
  Revert "rtlwifi: Fix enter/exit power_save"
  tick/broadcast: Prevent NULL pointer dereference
  clocksource/dummy_timer: Move hotplug callback after the real timers
  xfs: fix max_retries _show and _store functions
  xfs: fix crash and data corruption due to removal of busy COW extents
  xfs: use the actual AG length when reserving blocks
  xfs: fix double-cleanup when CUI recovery fails
  xfs: use GPF_NOFS when allocating btree cursors
  xfs: ignore leaf attr ichdr.count in verifier during log replay
  xfs: don't cap maximum dedupe request length
  xfs: don't allow di_size with high bit set
  xfs: error out if trying to add attrs and anextents > 0
  xfs: don't crash if reading a directory results in an unexpected hole
  xfs: complain if we don't get nextents bmap records
  xfs: check for bogus values in btree block headers
  xfs: forbid AG btrees with level == 0
  xfs: handle cow fork in xfs_bmap_trace_exlist
  xfs: pass state not whichfork to trace_xfs_extlist
  xfs: Move AGI buffer type setting to xfs_read_agi
  xfs: pass post-eof speculative prealloc blocks to bmapi
  xfs: use new extent lookup helpers xfs_file_iomap_begin_delay
  xfs: clean up cow fork reservation and tag inodes correctly
  xfs: use new extent lookup helpers in __xfs_reflink_reserve_cow
  xfs: track preallocation separately in xfs_bmapi_reserve_delalloc()
  xfs: remove prev argument to xfs_bmapi_reserve_delalloc
  xfs: always succeed when deduping zero bytes
  xfs: factor rmap btree size into the indlen calculations
  xfs: new inode extent list lookup helpers
  xfs: fix unbalanced inode reclaim flush locking
  xfs: check minimum block size for CRC filesystems
  xfs: provide helper for counting extents from if_bytes
  xfs: don't BUG() on mixed direct and mapped I/O
  xfs: don't skip cow forks w/ delalloc blocks in cowblocks scan
  xfs: check return value of _trans_reserve_quota_nblks
  xfs: don't call xfs_sb_quota_from_disk twice
  tpm_tis: Check return values from get_burstcount.
  drm/i915/gen9: fix the WM memory bandwidth WA for Y tiling cases
  drm/i915/gen9: unconditionally apply the memory bandwidth WA
  drm/i915: disable PSR by default on HSW/BDW
  drm/radeon: Always store CRTC relative radeon_crtc->cursor_x/y values
  s390/pci: fix dma address calculation in map_sg
  s390/topology: always use s390 specific sched_domain_topology_level
  powerpc/pci/rpadlpar: Fix device reference leaks
  PCI: Enable access to non-standard VPD for Chelsio devices (cxgb3)
  PCI: Support INTx masking on ConnectX-4 with firmware x.14.1100+
  PCI: Convert Mellanox broken INTx quirks to be for listed devices only
  PCI: Convert broken INTx masking quirks from HEADER to FINAL
  PCI: Add Mellanox device IDs
  PCI: rockchip: Correct the use of FTS mask
  PCI: rockchip: Fix negotiated lanes calculation
  staging: media: davinci_vpfe: unlock on error in vpfe_reqbufs()
  f2fs: hide a maybe-uninitialized warning
  f2fs: remove percpu_count due to performance regression
  md: fix refcount problem on mddev when stopping array.
  md: MD_RECOVERY_NEEDED is set for mddev->recovery
  crypto: arm64/aes-ce - fix for big endian
  crypto: arm64/aes-xts-ce: fix for big endian
  crypto: arm64/sha1-ce - fix for big endian
  crypto: arm64/aes-neon - fix for big endian
  crypto: arm64/aes-ccm-ce: fix for big endian
  crypto: arm/aes-ce - fix for big endian
  crypto: arm64/ghash-ce - fix for big endian
  crypto: arm64/sha2-ce - fix for big endian
  s390/crypto: unlock on error in prng_tdes_read()
  mm, compaction: fix NR_ISOLATED_* stats for pfn based migration
  mm: khugepaged: fix radix tree node leak in shmem collapse error path
  mm: khugepaged: close use-after-free race during shmem collapsing
  docs-rst: fix LaTeX \DURole renewcommand with Sphinx 1.3+
  mm/hugetlb.c: use the right pte val for compare in hugetlb_cow
  rpmsg: qcom_smd: Correct return value for O_NONBLOCK
  mmc: mmc_test: Uninitialized return value
  genirq/affinity: Fix node generation from cpumask
  PM / wakeirq: Fix dedicated wakeirq for drivers not using autosuspend
  irqchip/bcm7038-l1: Implement irq_cpu_offline() callback
  PCI/MSI: Check for NULL affinity mask in pci_irq_get_affinity()
  ima: fix memory leak in ima_release_policy
  relay: check array offset before using it
  sbp-target: Fix second argument of percpu_ida_alloc()
  target/iscsi: Fix double free in lio_target_tiqn_addtpg()
  scsi: mvsas: fix command_active typo
  scsi: g_NCR5380: Fix release_region in error handling
  ASoC: samsung: i2s: Fixup last IRQ unsafe spin lock call
  ASoC: Intel: Skylake: Fix a shift wrapping bug
  ASoC: cht_bsw_rt5645: Fix leftover kmalloc
  ASoC: lpass-platform: initialize dma channel number
  iommu/vt-d: Flush old iommu caches for kdump when the device gets context mapped
  iommu/vt-d: Fix pasid table size encoding
  iommu/amd: Fix the left value check of cmd buffer
  iommu/amd: Missing error code in amd_iommu_init_device()
  clk: renesas: mstp: Support 8-bit registers for r7s72100
  clk: imx31: fix rewritten input argument of mx31_clocks_init()
  clk: sunxi-ng: sun8i-h3: Set CLK_SET_RATE_PARENT for audio module clocks
  clk: sunxi-ng: sun8i-a23: Set CLK_SET_RATE_PARENT for audio module clocks
  clk: ti: dra7: fix "failed to lookup clock node gmac_gmii_ref_clk_div" boot message
  clk: clk-wm831x: fix a logic error
  clk: qcom: ipq806x: Fix board clk rates
  Input: synaptics-rmi4 - unlock on error
  hwmon: (lm90) fix temp1_max_alarm attribute
  hwmon: (g762) Fix overflows and crash seen when writing limit attributes
  hwmon: (nct7802) Fix overflows seen when writing into limit attributes
  hwmon: (ds620) Fix overflows seen when writing temperature limits
  hwmon: (amc6821) sign extension temperature
  hwmon: (scpi) Fix module autoload
  platform/x86: fujitsu-laptop: use brightness_set_blocking for LED-setting callbacks
  x86/cpu: Probe CPUID leaf 6 even when cpuid_level == 6
  x86/prctl/uapi: Remove #ifdef for CHECKPOINT_RESTORE
  debugfs: improve DEFINE_DEBUGFS_ATTRIBUTE for !CONFIG_DEBUG_FS
  clk: renesas: cpg-mssr: Fix inverted debug check
  efi/efivar_ssdt_load: Don't return success on allocation failure
  cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected
  ath10k: use the right length of "background"
  mfd: tps65217: Fix page fault on unloading modules
  ath10k: fix failure to send NULL func frame for 10.4
  nl80211: Use different attrs for BSSID and random MAC addr in scan req
  mac80211: fix tid_agg_rx NULL dereference
  drm/i915: tune down the fast link training vs boot fail
  drm/i915/dp: add lane_count check in intel_dp_check_link_status
  usb: dwc3: gadget: always unmap EP0 requests
  usb: dwc3: ep0: explicitly call dwc3_ep0_prepare_one_trb()
  usb: dwc3: ep0: add dwc3_ep0_prepare_one_trb()
  iio: accel: st_accel: fix LIS3LV02 reading and scaling
  staging: iio: ad7606: fix improper setting of oversampling pins
  mei: move write cb to completion on credentials failures
  mei: bus: fix mei_cldev_enable KDoc
  mei: fix parameter rename KDoc
  USB: serial: io_ti: bind to interface after fw download
  dibusb: fix possible memory leak in dibusb_rc_query()
  ARM: dts: sun7i: bananapi-m1-plus: Enable USB PHY for USB host support
  arm64: dts: hip06: Correct hardware pin number of usb node
  USB: phy: am335x-control: fix device and of_node leaks
  ARM: dts: r8a7794: Correct hsusb parent clock
  usb: gadget: fix request length error for isoc transfer
  usb: gadget: Fix second argument of percpu_ida_alloc()
  USB: serial: kl5kusb105: abort on open exception path
  ALSA: usb-audio: Fix bogus error return in snd_usb_create_stream()
  usb: musb: blackfin: add bfin_fifo_offset in bfin_ops
  usb: gadget: udc: core: fix return code of usb_gadget_probe_driver()
  usb: hub: Move hub_port_disable() to fix warning if PM is disabled
  usb: musb: Fix trying to free already-free IRQ 4
  usb: dwc3: gadget: Fix full speed mode
  usb: dwc3: pci: Fix dr_mode misspelling
  usb: dwc3: pci: add Intel Gemini Lake PCI ID
  xhci: Fix race related to abort operation
  xhci: Use delayed_work instead of timer for command timeout
  usb: xhci-mem: use passed in GFP flags instead of GFP_KERNEL
  USB: serial: mos7720: fix parallel probe
  USB: serial: mos7720: fix parport use-after-free on probe errors
  USB: serial: mos7720: fix use-after-free on probe errors
  USB: serial: mos7720: fix NULL-deref at open
  USB: serial: mos7840: fix NULL-deref at open
  USB: serial: kobil_sct: fix NULL-deref in write
  USB: serial: cyberjack: fix NULL-deref at open
  USB: serial: oti6858: fix NULL-deref at open
  USB: serial: io_edgeport: fix NULL-deref at open
  USB: serial: ti_usb_3410_5052: fix NULL-deref at open
  USB: serial: garmin_gps: fix memory leak on failed URB submit
  USB: serial: iuu_phoenix: fix NULL-deref at open
  USB: serial: io_ti: fix I/O after disconnect
  USB: serial: io_ti: fix another NULL-deref at open
  USB: serial: io_ti: fix NULL-deref at open
  USB: serial: spcp8x5: fix NULL-deref at open
  USB: serial: keyspan_pda: verify endpoints at probe
  USB: serial: pl2303: fix NULL-deref at open
  USB: serial: quatech2: fix sleep-while-atomic in close
  USB: serial: omninet: fix NULL-derefs at open and disconnect
  usb: return error code when platform_get_irq fails
  usb: xhci: hold lock over xhci_abort_cmd_ring()
  xhci: Handle command completion and timeout race
  usb: host: xhci: Fix possible wild pointer when handling abort command
  usb: xhci: fix return value of xhci_setup_device()
  xhci: free xhci virtual devices with leaf nodes first
  usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Apollo Lake
  usb: xhci: fix possible wild pointer
  usb: dwc3: core: avoid Overflow events
  usb: gadget: composite: Test get_alt() presence instead of set_alt()
  USB: dummy-hcd: fix bug in stop_activity (handle ep0)
  USB: fix problems with duplicate endpoint addresses
  USB: gadgetfs: fix checks of wTotalLength in config descriptors
  USB: gadgetfs: fix use-after-free bug
  USB: gadgetfs: fix unbounded memory allocation bug
  usb: gadgetfs: restrict upper bound on device configuration size
  usb: storage: unusual_uas: Add JMicron JMS56x to unusual device
  usb: musb: dsps: implement clear_ep_rxintr() callback
  usb: musb: core: add clear_ep_rxintr() to musb_platform_ops
  KVM: MIPS: Flush KVM entry code from icache globally
  KVM: MIPS: Don't clobber CP0_Status.UX
  KVM: x86: reset MMU on KVM_SET_VCPU_EVENTS
  drm/i915: Initialize overlay->last_flip properly
  drm/i915: Force VDD off on the new power seqeuencer before starting to use it
  drm/i915: Fix oops in overlay due to frontbuffer tracking
  drm/i915: Fix oopses in the overlay code due to i915_gem_active stuff
  gcc-plugins: update gcc-common.h for gcc-7
  asm-prototypes: Clear any CPP defines before declaring the functions
  mac80211: initialize fast-xmit 'info' later
  pinctrl/amd: Set the level based on ACPI tables
  ARM: davinci: da850: don't add emac clock to lookup table twice
  HID: sensor-hub: Move the memset to sensor_hub_get_feature()
  parisc: Mark cr16 clocksource unstable on SMP systems
  parisc: Add line-break when printing segfault info
  fscrypt: fix renaming and linking special files
  ALSA: usb-audio: Fix irq/process data synchronization
  ALSA: hda - Apply asus-mode8 fixup to ASUS X71SL
  ALSA: hda - Fix up GPIO for ASUS ROG Ranger
  staging: octeon: Call SET_NETDEV_DEV()
  iio: bmi160: Fix time needed to sleep after command execution
  iio: max44000: correct value in illuminance_integration_time_available
  iio: common: st_sensors: fix channel data parsing
  Linux 4.9.2
  drm/i915: Fix setting of boost freq tunable
  drm/i915: skip the first 4k of stolen memory on everything >= gen8
  drm/i915: Initialize dev_priv->atomic_cdclk_freq at init time
  drm/i915: Fix cdclk vs. dev_cdclk mess when not recomputing things
  drm/i915/dsi: Do not clear DPOUNIT_CLOCK_GATE_DISABLE from vlv_init_display_clock_gating
  drm/i915/dsi: Fix chv_exec_gpio disabling the GPIOs it is setting
  net: mvpp2: fix dma unmapping of TX buffers for fragments
  sg_write()/bsg_write() is not fit to be called under KERNEL_DS
  kconfig/nconf: Fix hang when editing symbol with a long prompt
  target/user: Fix use-after-free of tcmu_cmds if they are expired
  libnvdimm, pfn: fix align attribute
  of, numa: Return NUMA_NO_NODE from disable of_node_to_nid() if nid not possible.
  powerpc/boot: Request no dynamic linker for boot wrapper
  powerpc/ps3: Fix system hang with GCC 5 builds
  powerpc/64e: Convert cmpi to cmpwi in head_64.S
  SUNRPC: fix refcounting problems with auth_gss messages.
  pNFS: Fix a deadlock between read resends and layoutreturn
  pNFS: Clear NFS_LAYOUT_RETURN_REQUESTED when invalidating the layout stateid
  pNFS: Don't clear the layout stateid if a layout return is outstanding
  pNFS: On error, do not send LAYOUTGET until the LAYOUTRETURN has completed
  nfs_write_end(): fix handling of short copies
  libceph: verify authorize reply on connect
  PCI: Check for PME in targeted sleep state
  i40iw: Use correct src address in memcpy to rdma stats counters
  bad_inode: add missing i_op initializers
  Input: drv260x - fix input device's parent assignment
  v4l: tvp5150: Add missing break in set control handler
  media: solo6x10: fix lockup by avoiding delayed register write
  s5p-mfc: fix failure path of s5p_mfc_alloc_memdev()
  mn88473: fix chip id check on probe
  mn88472: fix chip id check on probe
  IB/cma: Fix a race condition in iboe_addr_get_sgid()
  IB/rxe: Fix a memory leak in rxe_qp_cleanup()
  IB/multicast: Check ib_find_pkey() return value
  IPoIB: Avoid reading an uninitialized member variable
  IB/mad: Fix an array index check
  fgraph: Handle a case where a tracer ignores set_graph_notrace
  x86/smpboot: Make logical package management more robust
  platform/x86: asus-nb-wmi.c: Add X45U quirk
  ftrace/x86_32: Set ftrace_stub to weak to prevent gcc from using short jumps to it
  vsock/virtio: fix src/dst cid format
  fsnotify: Fix possible use-after-free in inode iteration on umount
  kvm: nVMX: Allow L1 to intercept software exceptions (#BP and #OF)
  KVM: PPC: Book3S HV: Don't lose hardware R/C bit updates in H_PROTECT
  KVM: PPC: Book3S HV: Save/restore XER in checkpointed register state
  scsi: aacraid: remove wildcard for series 9 controllers
  md/raid5: limit request size according to implementation limits
  sc16is7xx: Drop bogus use of IRQF_ONESHOT
  latent_entropy: fix ARM build error on earlier gcc
  arm64: KVM: pmu: Reset PMSELR_EL0.SEL to a sane value before entering the guest
  s390/kexec: use node 0 when re-adding crash kernel memory
  s390/vmlogrdr: fix IUCV buffer allocation
  firmware: fix usermode helper fallback loading
  ARC: mm: arc700: Don't assume 2 colours for aliasing VIPT dcache
  scsi: avoid a permanent stop of the scsi device's request queue
  scsi: zfcp: fix rport unblock race with LUN recovery
  scsi: zfcp: do not trace pure benign residual HBA responses at default level
  scsi: zfcp: fix use-after-"free" in FC ingress path after TMF
  iscsi-target: Return error if unable to add network portal
  scsi: megaraid_sas: Do not set MPI2_TYPE_CUDA for JBOD FP path for FW which does not support JBOD sequence map
  scsi: megaraid_sas: For SRIOV enabled firmware, ensure VF driver waits for 30secs before reset
  stm class: Fix device leak in open error path
  vt: fix Scroll Lock LED trigger name
  block: protect iterate_bdevs() against concurrent close
  mei: me: add lewisburg device ids
  mei: request async autosuspend at the end of enumeration
  drivers/gpu/drm/ast: Fix infinite loop if read fails
  drm/amdgpu: fix init save/restore list in gfx_v8.0
  drm/amdgpu: fix enable_cp_power_gating in gfx_v8.0.
  drm/amd/powerplay: bypass fan table setup if no fan connected
  drm/gma500: Add compat ioctl
  drm/radeon/si: load the proper firmware on 0x87 oland boards
  drm/radeon: add additional pci revision to dpm workaround
  drm/radeon: Hide the HW cursor while it's out of bounds
  drm/radeon: Also call cursor_move_locked when the cursor size changes
  drm/nouveau/fifo/gf100-: protect channel preempt with subdev mutex
  drm/nouveau/i2c/gk110b,gm10x: use the correct implementation
  drm/nouveau/ttm: wait for bo fence to signal before unmapping vmas
  drm/nouveau/ltc: protect clearing of comptags with mutex
  drm/nouveau/bios: require checksum to match for fast acpi shadow method
  drm/nouveau/kms: lvds panel strap moved again on maxwell
  drm/nouveau/gr: fallback to legacy paths during firmware lookup
  drm/amd/amdgpu: enable GUI idle INT after enabling CGCG
  drm/amdgpu: Also call cursor_move_locked when the cursor size changes
  drm/amdgpu: Store CRTC relative amdgpu_crtc->cursor_x/y values
  drm/amdgpu: add additional pci revision to dpm workaround
  drm/amdgpu/si: load the proper firmware on 0x87 oland boards
  ACPI / video: Add force_native quirk for HP Pavilion dv6
  ACPI / video: Add force_native quirk for Dell XPS 17 L702X
  staging: comedi: ni_mio_common: fix E series ni_ai_insn_read() data
  staging: comedi: ni_mio_common: fix M Series ni_ai_insn_read() data mask
  staging: lustre: ldlm: pl_recalc time handling is wrong
  staging/lustre/osc: Revert erroneous list_for_each_entry_safe use
  hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()
  docs: sphinx-extensions: make rstFlatTable work with docutils 0.13
  thermal: hwmon: Properly report critical temperature in sysfs
  clk: bcm2835: Avoid overwriting the div info when disabling a pll_div clk
  arm64: tegra: Add VDD_GPU regulator to Jetson TX1
  gpio: chardev: Return error for seek operations
  gpio: stmpe: fix interrupt handling bug
  timekeeping_Force_unsigned_clocksource_to_nanoseconds_conversion
  mmc: sd: Meet alignment requirements for raw_ssr DMA
  regulator: stw481x-vmmc: fix ages old enable error
  mmc: sdhci: Fix recovery from tuning timeout
  Revert "mmc: sdhci: Reset cmd and data circuits after tuning failure"
  ath9k: do not return early to fix rcu unlocking
  ath9k: Really fix LED polarity for some Mini PCI AR9220 MB92 cards.
  ath9k: fix ath9k_hw_gpio_get() to return 0 or 1 on success
  cfg80211/mac80211: fix BSS leaks when abandoning assoc attempts
  rtl8xxxu: Work around issue with 8192eu and 8723bu devices not reconnecting
  perf/x86/intel/cstate: Prevent hotplug callback leak
  perf annotate: Don't throw error for zero length symbols
  perf/x86: Fix exclusion of BTS and LBR for Goldmont
  rtlwifi: Fix enter/exit power_save
  ath10k: fix soft lockup during firmware crash/hw-restart
  ssb: Fix error routine when fallback SPROM fails
  Linux 4.9.1
  x86/kbuild: enable modversions for symbols exported from asm
  builddeb: fix cross-building to arm64 producing host-arch debs
  xfs: set AGI buffer type in xlog_recover_clear_agi_bucket
  xfs: fix up xfs_swap_extent_forks inline extent handling
  arm/xen: Use alloc_percpu rather than __alloc_percpu
  xen/gntdev: Use VM_MIXEDMAP instead of VM_IO to avoid NUMA balancing
  tpm xen: Remove bogus tpm_chip_unregister
  kernel/debug/debug_core.c: more properly delay for secondary CPUs
  watchdog: qcom: fix kernel panic due to external abort on non-linefetch
  watchdog: mei_wdt: request stop on reboot to prevent false positive event
  kernel/watchdog: use nmi registers snapshot in hardlockup handler
  CIFS: Fix a possible memory corruption in push locks
  CIFS: Decrease verbosity of ioctl call
  CIFS: Fix a possible double locking of mutex during reconnect
  CIFS: Fix missing nls unload in smb2_reconnect()
  CIFS: Fix a possible memory corruption during reconnect
  cifs: Fix smbencrypt() to stop pointing a scatterlist at the stack
  ASoC: intel: Fix crash at suspend/resume without card registration
  dm space map metadata: fix 'struct sm_metadata' leak on failed create
  dm raid: fix discard support regression
  dm rq: fix a race condition in rq_completed()
  dm crypt: mark key as invalid until properly loaded
  dm flakey: return -EINVAL on interval bounds error in flakey_ctr()
  dm table: an 'all_blk_mq' table must be loaded for a blk-mq DM device
  dm table: fix 'all_blk_mq' inconsistency when an empty table is loaded
  blk-mq: Do not invoke .queue_rq() for a stopped queue
  PM / OPP: Don't use OPP structure outside of rcu protected section
  PM / OPP: Pass opp_table to dev_pm_opp_put_regulator()
  usb: gadget: composite: always set ep->mult to a sensible value
  mm, page_alloc: keep pcp count and list contents in sync if struct page is corrupted
  mm/vmscan.c: set correct defer count for shrinker
  nvmet: Fix possible infinite loop triggered on hot namespace removal
  loop: return proper error from loop_queue_rq()
  f2fs: fix to determine start_cp_addr by sbi->cur_cp_pack
  f2fs: fix overflow due to condition check order
  f2fs: set ->owner for debugfs status file's file_operations
  Revert "f2fs: use percpu_counter for # of dirty pages in inode"
  ext4: do not perform data journaling when data is encrypted
  ext4: return -ENOMEM instead of success
  ext4: reject inodes with negative size
  ext4: add sanity checking to count_overhead()
  ext4: fix in-superblock mount options processing
  ext4: use more strict checks for inodes_per_block on mount
  ext4: fix stack memory corruption with 64k block size
  ext4: fix mballoc breakage with 64k block size
  ext4: don't lock buffer in ext4_commit_super if holding spinlock
  crypto: caam - fix AEAD givenc descriptors
  ptrace: Don't allow accessing an undumpable mm
  ptrace: Capture the ptracer's creds not PT_PTRACE_CAP
  vfs,mm: fix return value of read() at s_maxbytes
  mm: Add a user_ns owner to mm_struct and fix ptrace permission checks
  block_dev: don't test bdev->bd_contains when it is not stable
  splice: reinstate SIGPIPE/EPIPE handling
  fs: exec: apply CLOEXEC before changing dumpable task flags
  exec: Ensure mm->user_ns contains the execed files
  clk: ti: omap36xx: Work around sprz319 advisory 2.1
  ALSA: hda: when comparing pin configurations, ignore assoc in addition to seq
  ALSA: hda - Gate the mic jack on HP Z1 Gen3 AiO
  ALSA: hda - fix headset-mic problem on a Dell laptop
  ALSA: hda - ignore the assoc and seq when comparing pin configurations
  ALSA: hda/ca0132 - Add quirk for Alienware 15 R2 2016
  ALSA: hiface: Fix M2Tech hiFace driver sampling rate change
  ALSA: usb-audio: Add QuickCam Communicate Deluxe/S7500 to volume_control_quirks
  usbip: vudc: fix: Clear already_seen flag also for ep0
  USB: UHCI: report non-PME wakeup signalling for Intel hardware
  usb: gadget: composite: correctly initialize ep->maxpacket
  usb: gadget: f_uac2: fix error handling at afunc_bind
  usb: core: usbport: Use proper LED API to fix potential crash
  usb: hub: Fix auto-remount of safely removed or ejected USB-3 devices
  usb: dwc3: gadget: set PCM1 field of isochronous-first TRBs
  USB: cdc-acm: add device id for GW Instek AFG-125
  USB: serial: kl5kusb105: fix open error path
  USB: serial: option: add dlink dwm-158
  USB: serial: option: add support for Telit LE922A PIDs 0x1040, 0x1041
  Btrfs: fix qgroup rescan worker initialization
  Btrfs: fix emptiness check for dirtied extent buffers at check_leaf()
  btrfs: store and load values of stripes_min/stripes_max in balance status item
  Btrfs: fix relocation incorrectly dropping data references
  Btrfs: fix tree search logic when replaying directory entry deletes
  Btrfs: fix deadlock caused by fsync when logging directory entries
  Btrfs: fix BUG_ON in btrfs_mark_buffer_dirty
  btrfs: limit async_work allocation and worker func duration
  hotplug: Make register and unregister notifier API symmetric
  ANDROID: Shrink ashmem directly through shmem_fallocate
  ANDROID: ashmem: Add shmem_set_file to mm/shmem.c
  ANDROID: Add android config documentation to boot framework.

Conflicts:
	Documentation/android.txt
	Documentation/cpu-freq/governors.txt
	Documentation/networking/ip-sysctl.txt
	arch/arm64/boot/Makefile
	arch/arm64/kernel/process.c
	arch/arm64/kernel/topology.c
	arch/arm64/mm/dma-mapping.c
	drivers/cpufreq/cpufreq_interactive.c
	drivers/input/misc/gpio_matrix.c
	drivers/md/Kconfig
	drivers/md/dm-android-verity.c
	drivers/md/dm-android-verity.h
	drivers/md/dm-linear.c
	drivers/md/dm-verity-fec.h
	drivers/mmc/core/host.c
	drivers/platform/goldfish/goldfish_pipe.c
	drivers/power/supply/power_supply_sysfs.c
	drivers/scsi/ufs/ufshcd.c
	drivers/scsi/ufs/ufshcd.h
	drivers/staging/android/fiq_debugger/fiq_debugger.c
	drivers/staging/android/lowmemorykiller.c
	drivers/usb/dwc3/core.h
	drivers/usb/gadget/Kconfig
	drivers/usb/gadget/configfs.c
	drivers/usb/gadget/function/Makefile
	drivers/usb/gadget/function/f_accessory.c
	drivers/usb/gadget/function/f_audio_source.c
	drivers/usb/gadget/function/f_fs.c
	drivers/usb/gadget/function/f_mtp.c
	drivers/usb/phy/Kconfig
	drivers/usb/phy/otg-wakelock.c
	fs/ext4/inode.c
	fs/ext4/ioctl.c
	fs/f2fs/data.c
	fs/proc/task_mmu.c
	fs/sdcardfs/derived_perm.c
	fs/sdcardfs/file.c
	fs/sdcardfs/inode.c
	fs/sdcardfs/lookup.c
	fs/sdcardfs/main.c
	fs/sdcardfs/packagelist.c
	fs/sdcardfs/sdcardfs.h
	fs/sdcardfs/super.c
	include/linux/mmc/core.h
	include/linux/power_supply.h
	include/linux/sched.h
	include/linux/usb/f_mtp.h
	include/net/fib_rules.h
	include/net/route.h
	include/trace/events/cpufreq_interactive.h
	include/trace/events/power.h
	include/trace/events/sched.h
	include/uapi/linux/magic.h
	include/uapi/linux/prctl.h
	init/Kconfig
	kernel/cgroup.c
	kernel/configs/android-base.config
	kernel/power/process.c
	kernel/sched/Makefile
	kernel/sched/core.c
	kernel/sched/cputime.c
	kernel/sched/fair.c
	kernel/sched/rt.c
	kernel/sched/sched.h
	kernel/sched/stop_task.c
	kernel/sched/tune.c
	lib/Kconfig.debug
	net/core/fib_rules.c
	net/ipv4/inet_connection_sock.c
	net/ipv4/ping.c
	net/ipv4/raw.c
	net/ipv4/route.c
	net/ipv4/syncookies.c
	net/ipv4/udp.c
	net/ipv6/af_inet6.c
	net/ipv6/ah6.c
	net/ipv6/datagram.c
	net/ipv6/esp6.c
	net/ipv6/icmp.c
	net/ipv6/inet6_connection_sock.c
	net/ipv6/ip6_vti.c
	net/ipv6/ipcomp6.c
	net/ipv6/ping.c
	net/ipv6/raw.c
	net/ipv6/route.c
	net/ipv6/syncookies.c
	net/ipv6/tcp_ipv6.c
	net/ipv6/udp.c

Change-Id: I82455dc7b564fc5d3ad2b784a0eb8f96c6b05d4c
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>

Channagoud Kadabi   commited 2017-02-17 16:14:38 -08:00
8810e5fa00
This is the 4.9.6 stable release
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAliJpGsACgkQONu9yGCS
 aT5S3Q/9GjL13+Bv/KXRDtCxN7bGjyKqc45OyBzPT7h9atr51PUVOXTNDhlTaHmT
 7LzLw9le1D113svQC4iJHceqJAm2SHi0MjzpiZvF7j2dDERQ/Gqrde+w51SW67VE
 bB6QdyHHsx/pLmkEVR5Q3MJZ4+PlkzbklLCkLH7b2HpPFsMLTd+dPQlBtbttd5yk
 +K7WH3z549bh+JzLQxhi0NenFLq0EPK3kIw+hAqWqj7vW9XdVMtsuQGZP2ZMmdDW
 3aCcvVH+OCjxBJWZUDTJF++EVChoppqSgIMQ2BR8jLg9g/K3DqHfy75K9HF3DOek
 rBdxDlGFMe408QpN0JOdGz0508KZZOeY/rPEJF1eqwumudcWdYv5FPo/OmSDP/o7
 +7frMed/VohXzY8IITJeSenKFb+C+GBMn5qtq48uxUBiAtbQc5sOKUaSdhLpkRIe
 diXHkkP3oOHds5XlgnPr1oy+06iwOJjWSDu1wWyscZ6eBqalroymPg1JARTkEZjP
 L1GWW0OsxViGX5bGigFoajpnskU0c6I0JjvipoNm1Ii+9Y1Z9ZfWYPcISOBMwwLG
 6UbaizY4eE580bO9soNP7QURrVYvo7KljMYtCq/O6VikaAiJ7Vmu7DjLtz0r96zB
 mA2jajeujjB0dNH5M9UyTzzyzHpw+5rgqnyTHYcyf7k+uzIaLSM=
 =Kh8d
 -----END PGP SIGNATURE-----

Merge tag 'v4.9.6' into android-4.9

This is the 4.9.6 stable release

Change-Id: I318df4b9d706d50c13fe3969d734117c25fc94bc

Dmitry Shmidt   commited 2017-01-31 13:55:27 -08:00
cd08287396
ANDROID: Move x86_64 idle notifiers to generic
Move the x86_64 idle notifiers originally by Andi Kleen and Venkatesh
Pallipadi to generic.

Change-Id: Idf29cda15be151f494ff245933c12462643388d5
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>

Todd Poynor   authored and   Dmitry Shmidt   commited 2017-01-27 13:51:37 -08:00
5ee34129c9
hotplug: Make register and unregister notifier API symmetric
commit 777c6e0daebb3fcefbbd6f620410a946b07ef6d0 upstream.

Yu Zhao has noticed that __unregister_cpu_notifier only unregisters its
notifiers when HOTPLUG_CPU=y while the registration might succeed even
when HOTPLUG_CPU=n if MODULE is enabled. This means that e.g. zswap
might keep a stale notifier on the list on the manual clean up during
the pool tear down and thus corrupt the list. Resulting in the following

[  144.964346] BUG: unable to handle kernel paging request at ffff880658a2be78
[  144.971337] IP: [<ffffffffa290b00b>] raw_notifier_chain_register+0x1b/0x40
<snipped>
[  145.122628] Call Trace:
[  145.125086]  [<ffffffffa28e5cf8>] __register_cpu_notifier+0x18/0x20
[  145.131350]  [<ffffffffa2a5dd73>] zswap_pool_create+0x273/0x400
[  145.137268]  [<ffffffffa2a5e0fc>] __zswap_param_set+0x1fc/0x300
[  145.143188]  [<ffffffffa2944c1d>] ? trace_hardirqs_on+0xd/0x10
[  145.149018]  [<ffffffffa2908798>] ? kernel_param_lock+0x28/0x30
[  145.154940]  [<ffffffffa2a3e8cf>] ? __might_fault+0x4f/0xa0
[  145.160511]  [<ffffffffa2a5e237>] zswap_compressor_param_set+0x17/0x20
[  145.167035]  [<ffffffffa2908d3c>] param_attr_store+0x5c/0xb0
[  145.172694]  [<ffffffffa290848d>] module_attr_store+0x1d/0x30
[  145.178443]  [<ffffffffa2b2b41f>] sysfs_kf_write+0x4f/0x70
[  145.183925]  [<ffffffffa2b2a5b9>] kernfs_fop_write+0x149/0x180
[  145.189761]  [<ffffffffa2a99248>] __vfs_write+0x18/0x40
[  145.194982]  [<ffffffffa2a9a412>] vfs_write+0xb2/0x1a0
[  145.200122]  [<ffffffffa2a9a732>] SyS_write+0x52/0xa0
[  145.205177]  [<ffffffffa2ff4d97>] entry_SYSCALL_64_fastpath+0x12/0x17

This can be even triggered manually by changing
/sys/module/zswap/parameters/compressor multiple times.

Fix this issue by making unregister APIs symmetric to the register so
there are no surprises.

Fixes: 47e627bc8c ("[PATCH] hotplug: Allow modules to use the cpu hotplug notifiers even if !CONFIG_HOTPLUG_CPU")
Reported-and-tested-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dan Streetman <ddstreet@ieee.org>
Link: http://lkml.kernel.org/r/20161207135438.4310-1-mhocko@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Michal Hocko   authored and   Greg Kroah-Hartman   commited 2017-01-06 10:40:10 +01:00
56eaecc8ec
sched: Introduce HMP scheduling
Add a snapshot of all changes associated with the HMP scheduler
ported over to the latest kernel version. This will allow proper big
Little scheduling for targets that will use this kernel version.
The msm-4-4 snapshot is taken at commitcc60f0790f27 (sched: constrain
HMP scheduler tunable range with in better way).

Please note that this is not an exact snapshot; certain HMP related
code has been removed. This includes redundant code, useless CONFIG
options, rarely taken error code paths, runtime enable/disable support
for the HMP scheduler.

Change-Id: I923f35904008f1fb74ac9c1a39481810cdea5790
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>

Syed Rameez Mustafa   commited 2016-11-18 16:41:31 -08:00
dddcab78bd
Move x86_64 idle notifiers to generic
Move the x86_64 idle notifiers originally by Andi Kleen and Venkatesh
Pallipadi to generic.

Change-Id: Idf29cda15be151f494ff245933c12462643388d5
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>

Todd Poynor   authored and   Amit Pundir   commited 2016-10-24 23:41:21 +08:00
ef07e9e49d
nmi_backtrace: generate one-line reports for idle cpus
When doing an nmi backtrace of many cores, most of which are idle, the
output is a little overwhelming and very uninformative.  Suppress
messages for cpus that are idling when they are interrupted and just
emit one line, "NMI backtrace for N skipped: idling at pc 0xNNN".

We do this by grouping all the cpuidle code together into a new
.cpuidle.text section, and then checking the address of the interrupted
PC to see if it lies within that section.

This commit suitably tags x86 and tile idle routines, and only adds in
the minimal framework for other architectures.

Link: http://lkml.kernel.org/r/1472487169-14923-5-git-send-email-cmetcalf@mellanox.com
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Thompson <daniel.thompson@linaro.org> [arm]
Tested-by: Petr Mladek <pmladek@suse.com>
Cc: Aaron Tomlin <atomlin@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Chris Metcalf   authored and   Linus Torvalds   commited 2016-10-07 18:46:30 -07:00
6727ad9e20
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug updates from Thomas Gleixner:
 "Yet another batch of cpu hotplug core updates and conversions:

   - Provide core infrastructure for multi instance drivers so the
     drivers do not have to keep custom lists.

   - Convert custom lists to the new infrastructure. The block-mq custom
     list conversion comes through the block tree and makes the diffstat
     tip over to more lines removed than added.

   - Handle unbalanced hotplug enable/disable calls more gracefully.

   - Remove the obsolete CPU_STARTING/DYING notifier support.

   - Convert another batch of notifier users.

   The relayfs changes which conflicted with the conversion have been
   shipped to me by Andrew.

   The remaining lot is targeted for 4.10 so that we finally can remove
   the rest of the notifiers"

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  cpufreq: Fix up conversion to hotplug state machine
  blk/mq: Reserve hotplug states for block multiqueue
  x86/apic/uv: Convert to hotplug state machine
  s390/mm/pfault: Convert to hotplug state machine
  mips/loongson/smp: Convert to hotplug state machine
  mips/octeon/smp: Convert to hotplug state machine
  fault-injection/cpu: Convert to hotplug state machine
  padata: Convert to hotplug state machine
  cpufreq: Convert to hotplug state machine
  ACPI/processor: Convert to hotplug state machine
  virtio scsi: Convert to hotplug state machine
  oprofile/timer: Convert to hotplug state machine
  block/softirq: Convert to hotplug state machine
  lib/irq_poll: Convert to hotplug state machine
  x86/microcode: Convert to hotplug state machine
  sh/SH-X3 SMP: Convert to hotplug state machine
  ia64/mca: Convert to hotplug state machine
  ARM/OMAP/wakeupgen: Convert to hotplug state machine
  ARM/shmobile: Convert to hotplug state machine
  arm64/FP/SIMD: Convert to hotplug state machine
  ...

Linus Torvalds   commited 2016-10-03 19:43:08 -07:00
597f03f9d1
cpu/hotplug: Remove CPU_STARTING and CPU_DYING notifier
All users are converted to state machine, remove CPU_STARTING and the
corresponding CPU_DYING.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160818125731.27256-2-bigeasy@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Thomas Gleixner   commited 2016-09-06 18:30:19 +02:00
ee1e714b94
cpu/hotplug: Allow suspend/resume CPU to be specified
disable_nonboot_cpus() assumes that the lowest numbered online CPU is
the boot CPU, and that this is the correct CPU to run any power
management code on.

On x86 this is always correct, as CPU0 cannot (easily) by taken offline.

On arm64 CPU0 can be taken offline. For hibernate/resume this means we
may hibernate on a CPU other than CPU0. If the system is rebooted with
kexec 'CPU0' will be assigned to a different physical CPU. This
complicates hibernate/resume as now we can't trust the CPU numbers.
Arch code can find the correct physical CPU, and ensure it is online
before resume from hibernate begins, but also needs to influence
disable_nonboot_cpus()s choice of CPU.

Rename disable_nonboot_cpus() as freeze_secondary_cpus() and add an
argument indicating which CPU should be left standing. Follow the logic
in migrate_to_reboot_cpu() to use the lowest numbered online CPU if the
requested CPU is not online.
Add disable_nonboot_cpus() as an inline function that has the existing
behaviour.

Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

James Morse   authored and   Will Deacon   commited 2016-08-26 11:20:11 +01:00
d391e55229
workqueue: Convert to state machine callbacks
Get rid of the prio ordering of the separate notifiers and use a proper state
callback pair.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160713153335.197083890@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

Thomas Gleixner   authored and   Ingo Molnar   commited 2016-07-14 09:34:43 +02:00
7ee681b252
perf/core: Remove perf CPU notifier code
All users converted to state machine callbacks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160713153335.115333381@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

Thomas Gleixner   authored and   Ingo Molnar   commited 2016-07-14 09:34:42 +02:00
89ab9cb169
sched/hotplug: Move migration CPU_DYING to sched_cpu_dying()
Remove the hotplug notifier and make it an explicit state.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160310120025.502222097@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Thomas Gleixner   commited 2016-05-06 14:58:25 +02:00
f2785ddb53
sched/hotplug: Convert cpu_[in]active notifiers to state machine
Now that we reduced everything into single notifiers, it's simple to move them
into the hotplug state machine space.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Thomas Gleixner   commited 2016-05-06 14:58:24 +02:00
40190a78f8
sched: Consolidate the notifier maze
We can maintain the ordering of the scheduler cpu hotplug functionality nicely
in one notifer. Get rid of the maze.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Thomas Gleixner   commited 2016-05-06 14:58:23 +02:00
135fb3e197