Commit Graph

220 Commits

Author SHA1 Message Date
Michael Bestas
0d750eaafc Merge tag 'ASB-2024-08-05_4.19-stable' of https://android.googlesource.com/kernel/common into android-msm-pixel-4.19
https://source.android.com/docs/security/bulletin/2024-08-01
CVE-2024-36971

* tag 'ASB-2024-08-05_4.19-stable' of https://android.googlesource.com/kernel/common: (2363 commits)
  Linux 4.19.318
  i2c: rcar: bring hardware to known state when probing
  nilfs2: fix kernel bug on rename operation of broken directory
  SUNRPC: Fix RPC client cleaned up the freed pipefs dentries
  tcp: avoid too many retransmit packets
  tcp: use signed arithmetic in tcp_rtx_probe0_timed_out()
  net: tcp: fix unexcepted socket die when snd_wnd is 0
  tcp: refactor tcp_retransmit_timer()
  libceph: fix race between delayed_work() and ceph_monc_stop()
  hpet: Support 32-bit userspace
  USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor
  usb: gadget: configfs: Prevent OOB read/write in usb_string_copy()
  USB: Add USB_QUIRK_NO_SET_INTF quirk for START BP-850k
  USB: serial: option: add Rolling RW350-GL variants
  USB: serial: option: add Netprisma LCUK54 series modules
  USB: serial: option: add support for Foxconn T99W651
  USB: serial: option: add Fibocom FM350-GL
  USB: serial: option: add Telit FN912 rmnet compositions
  USB: serial: option: add Telit generic core-dump composition
  ARM: davinci: Convert comma to semicolon
  ...

 Conflicts:
	Documentation/devicetree/bindings/sound/rt5645.txt
	android/abi_gki_aarch64.xml
	drivers/clk/qcom/clk-rcg2.c
	drivers/hwtracing/coresight/coresight-etm4x.c
	drivers/leds/leds-pwm.c
	drivers/mmc/core/host.c
	drivers/mmc/core/sdio.c
	drivers/mmc/host/cqhci.c
	drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
	drivers/rpmsg/qcom_glink_native.c
	drivers/scsi/ufs/ufshcd.c
	drivers/thermal/thermal_core.c
	drivers/usb/dwc3/core.c
	drivers/usb/gadget/function/f_ncm.c
	fs/f2fs/gc.c
	fs/pstore/ram_core.c
	include/linux/fs.h
	include/linux/timer.h
	include/net/tcp.h
	init/initramfs.c
	kernel/events/core.c
	kernel/sched/idle.c
	kernel/time/timer.c
	mm/page_alloc.c
	net/wireless/scan.c
	scripts/checkpatch.pl

Change-Id: Ice08f3ba5dc64a093bc381710ef2408d963cb983
2024-09-06 02:00:44 +03:00
Jason A. Donenfeld
a2243f0ffd UPSTREAM: crypto: memneq - move into lib/
This is used by code that doesn't need CONFIG_CRYPTO, so move this into
lib/ with a Kconfig option so that it can be selected by whatever needs
it.

This fixes a linker error Zheng pointed out when
CRYPTO_MANAGER_DISABLE_TESTS!=y and CRYPTO=m:

  lib/crypto/curve25519-selftest.o: In function `curve25519_selftest':
  curve25519-selftest.c:(.init.text+0x60): undefined reference to `__crypto_memneq'
  curve25519-selftest.c:(.init.text+0xec): undefined reference to `__crypto_memneq'
  curve25519-selftest.c:(.init.text+0x114): undefined reference to `__crypto_memneq'
  curve25519-selftest.c:(.init.text+0x154): undefined reference to `__crypto_memneq'

Bug: 254441685
Reported-by: Zheng Bin <zhengbin13@huawei.com>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: stable@vger.kernel.org
Fixes: aa127963f1ca ("crypto: lib/curve25519 - re-add selftests")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit 920b0442b9f884f55f4745b53430c80e71e90275)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: If70cd31f6e09f4312a7c7f815cc93637e00e1fb7
2024-01-23 14:10:10 +00:00
Lucas Wei
eae5a83bf8 Merge android-4.19-stable (4.19.252) into android-msm-pixel-4.19-lts
Merge 4.19.252 into android-4.19-stable
Linux 4.19.252
    dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate
    dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate
    dmaengine: at_xdma: handle errors of at_xdmac_alloc_desc() correctly
    dmaengine: pl330: Fix lockdep warning about non-static key
  * ida: don't use BUG_ON() for debugging
      lib/idr.c
    misc: rtsx_usb: set return value in rsp_buf alloc err path
  * misc: rtsx_usb: use separate command and response buffers
      include/linux/rtsx_usb.h
  * misc: rtsx_usb: fix use of dma mapped buffer for usb bulk transfer
      include/linux/rtsx_usb.h
    i2c: cadence: Unregister the clk notifier in error path
    selftests: forwarding: fix error message in learning_test
    selftests: forwarding: fix learning_test when h1 supports IFF_UNICAST_FLT
    selftests: forwarding: fix flood_unicast_test when h2 supports IFF_UNICAST_FLT
    ibmvnic: Properly dispose of all skbs during a failover.
    ARM: at91: pm: use proper compatible for sama5d2's rtc
    pinctrl: sunxi: a83t: Fix NAND function name for some pins
    ARM: meson: Fix refcount leak in meson_smp_prepare_cpus
    xfs: remove incorrect ASSERT in xfs_rename
    can: kvaser_usb: kvaser_usb_leaf: fix bittiming limits
    can: kvaser_usb: kvaser_usb_leaf: fix CAN clock frequency regression
    can: kvaser_usb: replace run-time checks with struct kvaser_usb_driver_info
    powerpc/powernv: delay rng platform device creation until later in boot
  * video: of_display_timing.h: include errno.h
      include/video/of_display_timing.h
    fbcon: Disallow setting font bigger than screen size
    iommu/vt-d: Fix PCI bus rescan device hot add
    net: rose: fix UAF bug caused by rose_t0timer_expiry
  * usbnet: fix memory leak in error case
      drivers/net/usb/usbnet.c
    can: gs_usb: gs_usb_open/close(): fix memory leak
    can: grcan: grcan_probe(): remove extra of_node_get()
    can: bcm: use call_rcu() instead of costly synchronize_rcu()
  * mm/slub: add missing TID updates on slab deactivation
      mm/slub.c
  * esp: limit skb_page_frag_refill use to a single page
      include/net/esp.h
      net/ipv4/esp4.c
      net/ipv6/esp6.c
    Merge 4.19.251 into android-4.19-stable
    Merge 4.19.250 into android-4.19-stable
  * ANDROID: revert some RNG function signature changes
      drivers/char/random.c
      include/linux/random.h
  * ANDROID: cpu/hotplug: avoid breaking Android ABI by fusing cpuhp steps
      include/linux/cpuhotplug.h
      kernel/cpu.c
    Merge 4.19.249 into android-4.19-stable
  * UPSTREAM: lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI
      include/crypto/internal/blake2s.h
      lib/crypto/blake2s.c
  * BACKPORT: lib/crypto: add prompts back to crypto libraries
      crypto/Kconfig
      lib/Kconfig
      lib/crypto/Kconfig
  * BACKPORT: lib/crypto: blake2s: include as built-in
      crypto/Kconfig
      drivers/net/Kconfig
      include/crypto/internal/blake2s.h
      lib/crypto/Kconfig
      lib/crypto/Makefile
      lib/crypto/blake2s-generic.c
      lib/crypto/blake2s.c
Linux 4.19.251
    net: usb: qmi_wwan: add Telit 0x1070 composition
    net: usb: qmi_wwan: add Telit 0x1060 composition
    xen/arm: Fix race in RB-tree based P2M accounting
    xen/blkfront: force data bouncing when backend is untrusted
    xen/netfront: force data bouncing when backend is untrusted
    xen/netfront: fix leaking data in shared pages
    xen/blkfront: fix leaking data in shared pages
  * ipv6/sit: fix ipip6_tunnel_get_prl return value
      net/ipv6/sit.c
  * sit: use min
      net/ipv6/sit.c
    net: dsa: bcm_sf2: force pause link settings
    hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails
    xen/gntdev: Avoid blocking in unmap_grant_pages()
  * net: tun: avoid disabling NAPI twice
      drivers/net/tun.c
    NFC: nxp-nci: Don't issue a zero length i2c_master_read()
    nfc: nfcmrvl: Fix irq_of_parse_and_map() return value
  * net: bonding: fix use-after-free after 802.3ad slave unbind
      drivers/net/bonding/bond_3ad.c
  * net: bonding: fix possible NULL deref in rlb code
      drivers/net/bonding/bond_alb.c
    netfilter: nft_dynset: restore set element counter when failing to update
    caif_virtio: fix race between virtio_device_ready() and ndo_open()
    net: ipv6: unexport __init-annotated seg6_hmac_net_init()
  * usbnet: fix memory allocation in helpers
      drivers/net/usb/usbnet.c
    RDMA/qedr: Fix reporting QP timeout attribute
  * net: tun: stop NAPI when detaching queues
      drivers/net/tun.c
  * net: tun: unlink NAPI from device on destruction
      drivers/net/tun.c
    selftests/net: pass ipv6_args to udpgso_bench's IPv6 TCP test
    virtio-net: fix race between ndo_open() and virtio_device_ready()
  * net: usb: ax88179_178a: Fix packet receiving
      drivers/net/usb/ax88179_178a.c
    net: rose: fix UAF bugs caused by timer handler
    SUNRPC: Fix READ_PLUS crasher
    s390/archrandom: simplify back to earlier design and initialize earlier
    dm raid: fix KASAN warning in raid5_add_disks
    dm raid: fix accesses beyond end of raid member array
    nvdimm: Fix badblocks clear off-by-one error
  * UPSTREAM: crypto: poly1305 - fix poly1305_core_setkey() declaration
      include/crypto/internal/poly1305.h
      include/crypto/poly1305.h
      lib/crypto/poly1305-donna64.c
      lib/crypto/poly1305.c
  * UPSTREAM: mm: fix misplaced unlock_page in do_wp_page()
      mm/memory.c
  * BACKPORT: mm: do_wp_page() simplification
      mm/memory.c
  * UPSTREAM: mm/ksm: Remove reuse_ksm_page()
      include/linux/ksm.h
  * UPSTREAM: mm: reuse only-pte-mapped KSM page in do_wp_page()
      include/linux/ksm.h
      mm/memory.c
Linux 4.19.250
  * swiotlb: skip swiotlb_bounce when orig_addr is zero
      kernel/dma/swiotlb.c
  * net/sched: move NULL ptr check to qdisc_put() too
      net/sched/sch_generic.c
    net: mscc: ocelot: allow unregistered IP multicast flooding
  * kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
      include/linux/kexec.h
  * fdt: Update CRC check for rng-seed
      drivers/of/fdt.c
    xen: unexport __init-annotated xen_xlate_map_ballooned_pages()
  * drm: remove drm_fb_helper_modinit
      drivers/gpu/drm/drm_crtc_helper_internal.h
      drivers/gpu/drm/drm_kms_helper_common.c
    powerpc/pseries: wire up rng during setup_arch()
  * kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS (2nd attempt)
      Makefile
  * modpost: fix section mismatch check for exported init/exit sections
      scripts/mod/modpost.c
    ARM: cns3xxx: Fix refcount leak in cns3xxx_init
    ARM: Fix refcount leak in axxia_boot_secondary
    soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe
    ARM: exynos: Fix refcount leak in exynos_map_pmu
    ARM: dts: imx6qdl: correct PU regulator ramp delay
    powerpc/powernv: wire up rng during setup_arch
    powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address
    powerpc: Enable execve syscall exit tracepoint
    xtensa: Fix refcount leak bug in time.c
    xtensa: xtfpga: Fix refcount leak bug in setup
    iio: adc: axp288: Override TS pin bias current for some models
    iio: trigger: sysfs: fix use-after-free on remove
    iio: gyro: mpu3050: Fix the error handling in mpu3050_power_up()
    iio: accel: mma8452: ignore the return value of reset operation
    iio:accel:bma180: rearrange iio trigger get and register
    iio:chemical:ccs811: rearrange iio trigger get and register
    usb: chipidea: udc: check request status before setting device address
  * xhci: turn off port power in shutdown
      drivers/usb/host/xhci-hub.c
      drivers/usb/host/xhci.c
      drivers/usb/host/xhci.h
    iio: adc: vf610: fix conversion mode sysfs node name
    gpio: winbond: Fix error code in winbond_gpio_get()
    virtio_net: fix xdp_rxq_info bug after suspend/resume
    igb: Make DMA faster when CPU is active on the PCIe link
    afs: Fix dynamic root getattr
    MIPS: Remove repetitive increase irq_err_count
    x86/xen: Remove undefined behavior in setup_features()
    erspan: do not assume transport header is always set
  * net/sched: sch_netem: Fix arithmetic in netem_dump() for 32-bit platforms
      net/sched/sch_netem.c
  * bonding: ARP monitor spams NETDEV_NOTIFY_PEERS notifiers
      drivers/net/bonding/bond_main.c
    USB: serial: option: add Quectel RM500K module support
    USB: serial: option: add Quectel EM05-G modem
    USB: serial: option: add Telit LE910Cx 0x1250 composition
  * random: quiet urandom warning ratelimit suppression message
      drivers/char/random.c
      include/linux/ratelimit.h
    dm era: commit metadata in postsuspend after worker stops
  * ata: libata: add qc->flags in ata_qc_complete_template tracepoint
      include/trace/events/libata.h
    ALSA: hda/realtek: Add quirk for Clevo PD70PNT
    ALSA: hda/conexant: Fix missing beep setup
    ALSA: hda/via: Fix missing beep setup
  * random: schedule mix_interrupt_randomness() less often
      drivers/char/random.c
    vt: drop old FONT ioctls
Linux 4.19.249
  * Revert "hwmon: Make chip parameter for with_info API mandatory"
      drivers/hwmon/hwmon.c
  * tcp: drop the hash_32() part from the index calculation
      net/ipv4/inet_hashtables.c
  * tcp: increase source port perturb table to 2^16
      net/ipv4/inet_hashtables.c
  * tcp: dynamically allocate the perturb table used by source ports
      net/ipv4/inet_hashtables.c
  * tcp: add small random increments to the source port
      net/ipv4/inet_hashtables.c
  * tcp: use different parts of the port_offset for index and offset
      net/ipv4/inet_hashtables.c
  * tcp: add some entropy in __inet_hash_connect()
      net/ipv4/inet_hashtables.c
    xprtrdma: fix incorrect header size calculations
  * usb: gadget: u_ether: fix regression in setting fixed MAC address
      drivers/usb/gadget/function/u_ether.c
    s390/mm: use non-quiescing sske for KVM switch to keyed guest
    powerpc/mm: Switch obsolete dssall to .long
    RISC-V: fix barrier() use in <vdso/processor.h>
    net: openvswitch: fix leak of nested actions
    net: openvswitch: fix misuse of the cached connection on tuple changes
    virtio-pci: Remove wrong address verification in vp_del_vqs()
  * ext4: add reserved GDT blocks check
      fs/ext4/resize.c
  * ext4: make variable "count" signed
      fs/ext4/namei.c
  * ext4: fix bug_on ext4_mb_use_inode_pa
      fs/ext4/mballoc.c
    serial: 8250: Store to lsr_save_flags after lsr read
    usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe
    usb: dwc2: Fix memory leak in dwc2_hcd_init
    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: Fix refcount leak in gic_populate_ppi_partitions
      drivers/irqchip/irq-gic-v3.c
    irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
    faddr2line: Fix overlapping text section failures, the sequel
    certs/blacklist_hashes.c: fix const confusion in certs blacklist
    arm64: ftrace: fix branch range checks
    net: bgmac: Fix an erroneous kfree() in bgmac_remove()
    mlxsw: spectrum_cnt: Reorder counter pools
    misc: atmel-ssc: Fix IRQ check in ssc_probe
    tty: goldfish: Fix free_irq() on remove
    i40e: Fix call trace in setup_tx_descriptors
    i40e: Fix adding ADQ filter to TC0
    pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE
  * random: credit cpu and bootloader seeds by default
      drivers/char/Kconfig
    net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag
  * ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
      net/l2tp/l2tp_ip6.c
    nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred
    virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed
    scsi: pmcraid: Fix missing resource cleanup in error case
    scsi: ipr: Fix missing/incorrect resource cleanup in error case
    scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology
    scsi: vmw_pvscsi: Expand vcpuHint to 16 bits
  * ASoC: wm_adsp: Fix event generation for wm_adsp_fw_put()
      sound/soc/codecs/wm_adsp.c
    ASoC: es8328: Fix event generation for deemphasis control
    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
    powerpc/kasan: Silence KASAN warnings in __get_wchan()
  * random: account for arch randomness in bits
      drivers/char/random.c
  * random: mark bootloader randomness code as __init
      drivers/char/random.c
      include/linux/random.h
  * random: avoid checking crng_ready() twice in random_init()
      drivers/char/random.c
  * crypto: drbg - make reseeding from get_random_bytes() synchronous
      crypto/drbg.c
      drivers/char/random.c
      include/crypto/drbg.h
  * crypto: drbg - always try to free Jitter RNG instance
      crypto/drbg.c
  * crypto: drbg - move dynamic ->reseed_threshold adjustments to __drbg_seed()
      crypto/drbg.c
  * crypto: drbg - track whether DRBG was seeded with !rng_is_initialized()
      crypto/drbg.c
      include/crypto/drbg.h
  * crypto: drbg - prepare for more fine-grained tracking of seeding state
      crypto/drbg.c
      include/crypto/drbg.h
  * crypto: drbg - always seeded with SP800-90B compliant noise source
      crypto/drbg.c
      include/crypto/drbg.h
  * crypto: drbg - add FIPS 140-2 CTRNG for noise source
      crypto/drbg.c
      include/crypto/drbg.h
  * Revert "random: use static branch for crng_ready()"
      drivers/char/random.c
  * random: check for signals after page of pool writes
      drivers/char/random.c
  * random: wire up fops->splice_{read,write}_iter()
      drivers/char/random.c
  * random: convert to using fops->write_iter()
      drivers/char/random.c
  * random: move randomize_page() into mm where it belongs
      drivers/char/random.c
      include/linux/mm.h
      include/linux/random.h
      mm/util.c
  * random: move initialization functions out of hot pages
      drivers/char/random.c
  * random: use proper return types on get_random_{int,long}_wait()
      drivers/char/random.c
      include/linux/random.h
  * random: remove extern from functions in header
      include/linux/random.h
  * random: use static branch for crng_ready()
      drivers/char/random.c
  * random: credit architectural init the exact amount
      drivers/char/random.c
  * random: handle latent entropy and command line from random_init()
      drivers/char/random.c
      include/linux/random.h
      init/main.c
  * random: use proper jiffies comparison macro
      drivers/char/random.c
  * random: remove ratelimiting for in-kernel unseeded randomness
      drivers/char/random.c
      lib/Kconfig.debug
  * random: avoid initializing twice in credit race
      drivers/char/random.c
  * random: use symbolic constants for crng_init states
      drivers/char/random.c
  * siphash: use one source of truth for siphash permutations
      drivers/char/random.c
      include/linux/prandom.h
      include/linux/siphash.h
      lib/siphash.c
  * random: help compiler out with fast_mix() by using simpler arguments
      drivers/char/random.c
  * random: do not use input pool from hard IRQs
      drivers/char/random.c
  * random: order timer entropy functions below interrupt functions
      drivers/char/random.c
  * random: do not pretend to handle premature next security model
      drivers/char/random.c
  * random: do not use batches when !crng_ready()
      drivers/char/random.c
  * random: insist on random_get_entropy() existing in order to simplify
      drivers/char/random.c
    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()
      include/linux/timex.h
      kernel/time/timekeeping.c
    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()
      init/main.c
    random: fix sysctl documentation nits
  * random: document crng_fast_key_erasure() destination possibility
      drivers/char/random.c
  * random: make random_get_entropy() return an unsigned long
      drivers/char/random.c
      include/linux/timex.h
  * random: check for signals every PAGE_SIZE chunk of /dev/[u]random
      drivers/char/random.c
  * random: check for signal_pending() outside of need_resched() check
      drivers/char/random.c
  * random: do not allow user to keep crng key around on stack
      drivers/char/random.c
  * random: do not split fast init input in add_hwgenerator_randomness()
      drivers/char/random.c
  * random: mix build-time latent entropy into pool at init
      drivers/char/random.c
  * random: re-add removed comment about get_random_{u32,u64} reseeding
      drivers/char/random.c
  * random: treat bootloader trust toggle the same way as cpu trust toggle
      drivers/char/Kconfig
      drivers/char/random.c
  * random: skip fast_init if hwrng provides large chunk of entropy
      drivers/char/random.c
  * random: check for signal and try earlier when generating entropy
      drivers/char/random.c
  * random: reseed more often immediately after booting
      drivers/char/random.c
  * random: make consistent usage of crng_ready()
      drivers/char/random.c
  * random: use SipHash as interrupt entropy accumulator
      drivers/char/random.c
  * random: replace custom notifier chain with standard one
      crypto/drbg.c
      drivers/char/random.c
      include/crypto/drbg.h
      include/linux/random.h
      lib/random32.c
      lib/vsprintf.c
  * random: don't let 644 read-only sysctls be written to
      drivers/char/random.c
  * random: give sysctl_random_min_urandom_seed a more sensible value
      drivers/char/random.c
  * random: do crng pre-init loading in worker rather than irq
      drivers/char/random.c
  * random: unify cycles_t and jiffies usage and types
      drivers/char/random.c
  * random: cleanup UUID handling
      drivers/char/random.c
  * random: only wake up writers after zap if threshold was passed
      drivers/char/random.c
  * random: round-robin registers as ulong, not u32
      drivers/char/random.c
  * random: clear fast pool, crng, and batches in cpuhp bring up
      drivers/char/random.c
      include/linux/cpuhotplug.h
      include/linux/random.h
      kernel/cpu.c
  * random: pull add_hwgenerator_randomness() declaration into random.h
      drivers/char/hw_random/core.c
      include/linux/hw_random.h
      include/linux/random.h
  * random: check for crng_init == 0 in add_device_randomness()
      drivers/char/random.c
  * random: unify early init crng load accounting
      drivers/char/random.c
  * random: do not take pool spinlock at boot
      drivers/char/random.c
  * random: defer fast pool mixing to worker
      drivers/char/random.c
  * random: rewrite header introductory comment
      drivers/char/random.c
  * random: group sysctl functions
      drivers/char/random.c
  * random: group userspace read/write functions
      drivers/char/random.c
  * random: group entropy collection functions
      drivers/char/random.c
  * random: group entropy extraction functions
      drivers/char/random.c
  * random: group initialization wait functions
      drivers/char/random.c
  * random: remove whitespace and reorder includes
      drivers/char/random.c
  * random: remove useless header comment
      include/linux/random.h
  * random: introduce drain_entropy() helper to declutter crng_reseed()
      drivers/char/random.c
  * random: deobfuscate irq u32/u64 contributions
      drivers/char/random.c
  * random: add proper SPDX header
      drivers/char/random.c
  * random: remove unused tracepoints
      drivers/char/random.c
      lib/random32.c
  * random: remove ifdef'd out interrupt bench
      drivers/char/random.c
  * random: tie batched entropy generation to base_crng generation
      drivers/char/random.c
  * random: zero buffer after reading entropy from userspace
      drivers/char/random.c
  * random: remove outdated INT_MAX >> 6 check in urandom_read()
      drivers/char/random.c
  * random: use hash function for crng_slow_load()
      drivers/char/random.c
      include/linux/hw_random.h
      include/linux/random.h
  * random: absorb fast pool into input pool after fast load
      drivers/char/random.c
  * random: do not xor RDRAND when writing into /dev/random
      drivers/char/random.c
  * random: ensure early RDSEED goes through mixer on init
      drivers/char/random.c
  * random: inline leaves of rand_initialize()
      drivers/char/random.c
  * random: use RDSEED instead of RDRAND in entropy extraction
      drivers/char/random.c
  * random: fix locking in crng_fast_load()
      drivers/char/random.c
  * random: remove batched entropy locking
      drivers/char/random.c
  * random: remove use_input_pool parameter from crng_reseed()
      drivers/char/random.c
  * random: make credit_entropy_bits() always safe
      drivers/char/random.c
  * random: always wake up entropy writers after extraction
      drivers/char/random.c
  * random: use linear min-entropy accumulation crediting
      drivers/char/random.c
  * random: simplify entropy debiting
      drivers/char/random.c
  * random: use computational hash for entropy extraction
      drivers/char/random.c
  * random: only call crng_finalize_init() for primary_crng
      drivers/char/random.c
  * random: access primary_pool directly rather than through pointer
      drivers/char/random.c
  * random: continually use hwgenerator randomness
      drivers/char/random.c
  * random: simplify arithmetic function flow in account()
      drivers/char/random.c
  * random: access input_pool_data directly rather than through pointer
      drivers/char/random.c
  * random: cleanup fractional entropy shift constants
      drivers/char/random.c
  * random: prepend remaining pool constants with POOL_
      drivers/char/random.c
  * random: de-duplicate INPUT_POOL constants
      drivers/char/random.c
  * random: remove unused OUTPUT_POOL constants
      drivers/char/random.c
  * random: rather than entropy_store abstraction, use global
      drivers/char/random.c
  * random: remove unused extract_entropy() reserved argument
      drivers/char/random.c
  * random: remove incomplete last_data logic
      drivers/char/random.c
  * random: cleanup integer types
      drivers/char/random.c
  * random: cleanup poolinfo abstraction
      drivers/char/random.c
  * random: fix typo in comments
      drivers/char/random.c
  * random: don't reset crng_init_cnt on urandom_read()
      drivers/char/random.c
  * random: avoid superfluous call to RDRAND in CRNG extraction
      drivers/char/random.c
  * random: early initialization of ChaCha constants
      drivers/char/random.c
  * random: initialize ChaCha20 constants with correct endianness
      drivers/char/random.c
  * random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs
      drivers/char/random.c
  * random: harmonize "crng init done" messages
      drivers/char/random.c
  * random: mix bootloader randomness into pool
      drivers/char/random.c
  * random: do not re-init if crng_reseed completes before primary init
      drivers/char/random.c
  * random: do not sign extend bytes for rotation when mixing
      drivers/char/random.c
  * random: use BLAKE2s instead of SHA1 in extraction
      drivers/char/random.c
  * random: remove unused irq_flags argument from add_interrupt_randomness()
      drivers/char/random.c
      include/linux/random.h
      kernel/irq/handle.c
  * random: document add_hwgenerator_randomness() with other input functions
      drivers/char/random.c
  * crypto: blake2s - adjust include guard naming
      include/crypto/blake2s.h
      include/crypto/internal/blake2s.h
  * crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h>
      include/crypto/blake2s.h
    MAINTAINERS: co-maintain random.c
  * random: remove dead code left over from blocking pool
      drivers/char/random.c
  * random: avoid arch_get_random_seed_long() when collecting IRQ randomness
      drivers/char/random.c
  * random: add arch_get_random_*long_early()
      drivers/char/random.c
      include/linux/random.h
    powerpc: Use bool in archrandom.h
  * linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
      include/linux/random.h
  * linux/random.h: Use false with bool
      include/linux/random.h
  * linux/random.h: Remove arch_has_random, arch_has_random_seed
      include/linux/random.h
    s390: 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
      drivers/char/random.c
  * random: split primary/secondary crng init paths
      drivers/char/random.c
  * random: remove some dead code of poolinfo
      drivers/char/random.c
  * random: fix typo in add_timer_randomness()
      drivers/char/random.c
  * random: Add and use pr_fmt()
      drivers/char/random.c
  * random: convert to ENTROPY_BITS for better code readability
      drivers/char/random.c
  * random: remove unnecessary unlikely()
      drivers/char/random.c
  * random: remove kernel.random.read_wakeup_threshold
      drivers/char/random.c
  * random: delete code to pull data into pools
      drivers/char/random.c
  * random: remove the blocking pool
      drivers/char/random.c
  * random: fix crash on multiple early calls to add_bootloader_randomness()
      drivers/char/random.c
  * char/random: silence a lockdep splat with printk()
      drivers/char/random.c
  * random: make /dev/random be almost like /dev/urandom
      drivers/char/random.c
  * random: ignore GRND_RANDOM in getentropy(2)
      drivers/char/random.c
      include/uapi/linux/random.h
  * random: add GRND_INSECURE to return best-effort non-cryptographic bytes
      drivers/char/random.c
      include/uapi/linux/random.h
  * random: Add a urandom_read_nowait() for random APIs that don't warn
      drivers/char/random.c
  * random: Don't wake crng_init_wait when crng_init == 1
      drivers/char/random.c
  * lib/crypto: sha1: re-roll loops to reduce code size
      lib/sha1.c
  * lib/crypto: blake2s: move hmac construction into wireguard
      include/crypto/blake2s.h
      lib/crypto/blake2s.c
  * crypto: blake2s - generic C library implementation and selftest
      include/crypto/blake2s.h
      include/crypto/internal/blake2s.h
      lib/Makefile
      lib/crypto/Makefile
      lib/crypto/blake2s-generic.c
      lib/crypto/blake2s.c
  * Revert "hwrng: core - Freeze khwrng thread during suspend"
      drivers/char/random.c
  * char/random: Add a newline at the end of the file
      drivers/char/random.c
  * random: Use wait_event_freezable() in add_hwgenerator_randomness()
      drivers/char/random.c
  * fdt: add support for rng-seed
      drivers/char/Kconfig
      drivers/char/random.c
      drivers/of/fdt.c
      include/linux/random.h
  * random: Support freezable kthreads in add_hwgenerator_randomness()
      drivers/char/random.c
  * random: fix soft lockup when trying to read from an uninitialized blocking pool
      drivers/char/random.c
  * latent_entropy: avoid build error when plugin cflags are not set
      include/linux/random.h
  * random: document get_random_int() family
      drivers/char/random.c
  * random: move rand_initialize() earlier
      drivers/char/random.c
      include/linux/random.h
      init/main.c
  * random: only read from /dev/random after its pool has received 128 bits
      drivers/char/random.c
  * drivers/char/random.c: make primary_crng static
      drivers/char/random.c
  * drivers/char/random.c: remove unused stuct poolinfo::poolbits
      drivers/char/random.c
  * drivers/char/random.c: constify poolinfo_table
      drivers/char/random.c
    9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"

Bug: 240880948
Change-Id: I46de87f5e1ff2146dbc394d88275d609ee871bc1
Signed-off-by: Lucas Wei <lucaswei@google.com>
2022-08-09 10:46:08 +08:00
Justin M. Forbes
c3632866fc BACKPORT: lib/crypto: add prompts back to crypto libraries
Commit 6048fdcc5f269 ("lib/crypto: blake2s: include as built-in") took
away a number of prompt texts from other crypto libraries. This makes
values flip from built-in to module when oldconfig runs, and causes
problems when these crypto libs need to be built in for thingslike
BIG_KEYS.

Fixes: 6048fdcc5f269 ("lib/crypto: blake2s: include as built-in")
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: linux-crypto@vger.kernel.org
Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
[Jason: - moved menu into submenu of lib/ instead of root menu
        - fixed chacha sub-dependencies for CONFIG_CRYPTO]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

(cherry picked from commit e56e18985596617ae426ed5997fb2e737cffb58b)

Conflicts:
	lib/Kconfig
	lib/crypto/Kconfig

Change-Id: Ic152f89df593925e9467ca16ee98ff2750ee6dea
Signed-off-by: Eric Biggers <ebiggers@google.com>
2022-07-07 17:14:19 +00:00
Lucas Wei
a452d64169 Merge android-4.19-stable (4.19.239) into android-msm-pixel-4.19-lts
Merge 4.19.239 into android-4.19-stable
Linux 4.19.239
    i2c: pasemi: Wait for write xfers to finish
  * smp: Fix offline cpu check in flush_smp_call_function_queue()
      kernel/smp.c
    ARM: davinci: da850-evm: Avoid NULL pointer dereference
  * ipv6: fix panic when forwarding a pkt with no in6 dev
      net/ipv6/ip6_output.c
  * ALSA: pcm: Test for "silence" field in struct "pcm_format_data"
      sound/core/pcm_misc.c
    ALSA: hda/realtek: Add quirk for Clevo PD50PNT
    gcc-plugins: latent_entropy: use /dev/urandom
    mm: kmemleak: take a full lowmem check in kmemleak_*_phys()
  * mm, page_alloc: fix build_zonerefs_node()
      mm/page_alloc.c
    drivers: net: slip: fix NPD bug in sl_tx_timeout()
    scsi: mvsas: Add PCI ID of RocketRaid 2640
    drm/amd/display: Fix allocate_mst_payload assert on resume
  * arm64: alternatives: mark patch_alternative() as `noinstr`
      arch/arm64/kernel/alternative.c
    gpu: ipu-v3: Fix dev_dbg frequency output
    ata: libata-core: Disable READ LOG DMA EXT for Samsung 840 EVOs
  * net: micrel: fix KS8851_MLL Kconfig
      drivers/net/ethernet/micrel/Kconfig
    scsi: ibmvscsis: Increase INITIAL_SRP_LIMIT to 1024
    scsi: target: tcmu: Fix possible page UAF
    Drivers: hv: vmbus: Prevent load re-ordering when reading ring buffer
    drm/amdkfd: Check for potential null return of kmalloc_array()
    drm/amd: Add USBC connector ID
    cifs: potential buffer overflow in handling symlinks
    nfc: nci: add flush_workqueue to prevent uaf
    testing/selftests/mqueue: Fix mq_perf_tests to free the allocated cpu set
  * sctp: Initialize daddr on peeled off socket
      net/sctp/socket.c
    net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link
    mlxsw: i2c: Fix initialization error flow
    gpiolib: acpi: use correct format characters
  * veth: Ensure eth header is in skb's linear part
      drivers/net/veth.c
  * net/sched: flower: fix parsing of ethertype following VLAN header
      include/net/flow_dissector.h
      net/core/flow_dissector.c
    memory: atmel-ebi: Fix missing of_node_put in atmel_ebi_probe
  * ANDROID: GKI: fix crc issue with commit 6281beee5b ("block: don't merge across cgroup boundaries if blkcg is enabled")
      block/blk-merge.c
      include/linux/blk-cgroup.h
  * Revert "PCI: Reduce warnings on possible RW1C corruption"
      drivers/pci/access.c
      include/linux/pci.h
    Merge 4.19.238 into android-4.19-stable
Linux 4.19.238
    drm/amdkfd: Use drm_priv to pass VM from KFD to amdgpu
    drm/amdgpu: Check if fd really is an amdgpu fd.
  * xfrm: policy: match with both mark and mask on user interfaces
      include/net/xfrm.h
      net/key/af_key.c
      net/xfrm/xfrm_policy.c
      net/xfrm/xfrm_user.c
    selftests: cgroup: Test open-time cgroup namespace usage for migration checks
    selftests: cgroup: Test open-time credential usage for migration checks
    selftests: cgroup: Make cg_create() use 0755 for permission instead of 0644
  * cgroup: Use open-time cgroup namespace for process migration perm checks
      kernel/cgroup/cgroup-internal.h
      kernel/cgroup/cgroup.c
  * cgroup: Allocate cgroup_file_ctx for kernfs_open_file->priv
      kernel/cgroup/cgroup-internal.h
      kernel/cgroup/cgroup-v1.c
      kernel/cgroup/cgroup.c
  * cgroup: Use open-time credentials for process migraton perm checks
      kernel/cgroup/cgroup-v1.c
      kernel/cgroup/cgroup.c
  * mm/sparsemem: fix 'mem_section' will never be NULL gcc 12 warning
      include/linux/mmzone.h
  * arm64: module: remove (NOLOAD) from linker script
      arch/arm64/kernel/module.lds
  * mm: don't skip swap entry even if zap_details specified
      mm/memory.c
    dmaengine: Revert "dmaengine: shdma: Fix runtime PM imbalance on error"
    tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
    tools build: Filter out options and warnings not supported by clang
  * irqchip/gic-v3: Fix GICR_CTLR.RWP polling
      drivers/irqchip/irq-gic-v3.c
    perf: qcom_l2_pmu: fix an incorrect NULL check on list iterator
    ata: sata_dwc_460ex: Fix crash due to OOB write
  * arm64: patch_text: Fixup last cpu should be master
      arch/arm64/kernel/insn.c
    btrfs: fix qgroup reserve overflow the qgroup limit
    x86/speculation: Restore speculation related MSRs during S3 resume
    x86/pm: Save the MSR validity status at context setup
    mm/mempolicy: fix mpol_new leak in shared_policy_replace
  * mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)
      mm/mremap.c
    mmc: renesas_sdhi: don't overwrite TAP settings when HS400 tuning is complete
    Revert "mmc: sdhci-xenon: fix annoying 1.8V regulator warning"
    drbd: Fix five use after free bugs in get_initial_state
    spi: bcm-qspi: fix MSPI only access with bcm_qspi_exec_mem_op()
    qede: confirm skb is allocated before using
    rxrpc: fix a race in rxrpc_exit_net()
    net: openvswitch: don't send internal clone attribute to the userspace.
    drm/imx: Fix memory leak in imx_pd_connector_get_modes
    net: stmmac: Fix unset max_speed difference between DT and non-DT platforms
    scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()
    Drivers: hv: vmbus: Fix potential crash on module unload
    drm/amdgpu: fix off by one in amdgpu_gfx_kiq_acquire()
  * KVM: arm64: Check arm64_get_bp_hardening_data() didn't return NULL
      arch/arm64/include/asm/kvm_mmu.h
  * mm: fix race between MADV_FREE reclaim and blkdev direct IO read
      mm/rmap.c
  * net: add missing SOF_TIMESTAMPING_OPT_ID support
      include/net/sock.h
      net/ipv4/raw.c
      net/ipv6/raw.c
      net/packet/af_packet.c
    parisc: Fix CPU affinity for Lasi, WAX and Dino chips
    jfs: prevent NULL deref in diFree
    virtio_console: eliminate anonymous module_init & module_exit
    serial: samsung_tty: do not unlock port->lock for uart_write_wakeup()
    NFS: swap-out must always use STABLE writes.
  * NFS: swap IO handling is slightly different for O_DIRECT IO
      include/linux/nfs_fs.h
    SUNRPC/call_alloc: async tasks mustn't block waiting for memory
  * clk: Enforce that disjoints limits are invalid
      drivers/clk/clk.c
    xen: delay xen_hvm_init_time_ops() if kdump is boot on vcpu>=32
    NFSv4: Protect the state recovery thread against direct reclaim
    w1: w1_therm: fixes w1_seq for ds28ea00 sensors
    minix: fix bug when opening a file with O_DIRECT
  * init/main.c: return 1 from handled __setup() functions
      init/main.c
  * Bluetooth: Fix use after free in hci_send_acl
      net/bluetooth/hci_event.c
    xtensa: fix DTC warning unit_address_format
    usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm
    scsi: libfc: Fix use after free in fc_exch_abts_resp()
    MIPS: fix fortify panic when copying asm exception handlers
    bnxt_en: Eliminate unintended link toggle during FW reset
    macvtap: advertise link netns via netlink
    net/smc: correct settings of RMB window update limit
    scsi: aha152x: Fix aha152x_setup() __setup handler return value
    scsi: pm8001: Fix pm8001_mpi_task_abort_resp()
    drm/amdkfd: make CRAT table missing message informational only
  * dm ioctl: prevent potential spectre v1 gadget
      drivers/md/dm-ioctl.c
  * ipv4: Invalidate neighbour for broadcast address upon address addition
      include/net/arp.h
      net/ipv4/arp.c
      net/ipv4/fib_frontend.c
    PCI: pciehp: Add Qualcomm quirk for Command Completed erratum
  * usb: ehci: add pci device support for Aspeed platforms
      drivers/usb/host/ehci-pci.c
    iommu/arm-smmu-v3: fix event handling soft lockup
    PCI: aardvark: Fix support for MSI interrupts
    powerpc: Set crashkernel offset to mid of RMA region
    power: supply: axp20x_battery: properly report current when discharging
    scsi: bfa: Replace snprintf() with sysfs_emit()
    scsi: mvsas: Replace snprintf() with sysfs_emit()
    powerpc: dts: t104xrdb: fix phy type for FMAN 4/5
  * ptp: replace snprintf with sysfs_emit
      drivers/ptp/ptp_sysfs.c
    drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj
    ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111
  * drm: Add orientation quirk for GPD Win Max
      drivers/gpu/drm/drm_panel_orientation_quirks.c
    KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs
    ARM: 9187/1: JIVE: fix return value of __setup handler
    riscv module: remove (NOLOAD)
    rtc: wm8350: Handle error for wm8350_register_irq
    ubifs: Rectify space amount budget for mkdir/tmpfile operations
    KVM: x86: Forbid VMM to set SYNIC/STIMER MSRs when SynIC wasn't activated
    openvswitch: Fixed nd target mask field in the flow dump.
    um: Fix uml_mconsole stop/go
    ARM: dts: spear13xx: Update SPI dma properties
    ARM: dts: spear1340: Update serial node properties
    ASoC: topology: Allow TLV control to be either read or write
    ubi: fastmap: Return error code if memory allocation fails in add_aeb()
  * bpf: Fix comment for helper bpf_current_task_under_cgroup()
      include/uapi/linux/bpf.h
  * mm/usercopy: return 1 from hardened_usercopy __setup() handler
      mm/usercopy.c
  * mm/memcontrol: return 1 from cgroup.memory __setup() handler
      mm/memcontrol.c
  * mm/mmap: return 1 from stack_guard_gap __setup() handler
      mm/mmap.c
    ACPI: CPPC: Avoid out of bounds access when parsing _CPC data
    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl
  * pinctrl: pinconf-generic: Print arguments for bias-pull-*
      drivers/pinctrl/pinconf-generic.c
    gfs2: Make sure FITRIM minlen is rounded up to fs block size
    can: mcba_usb: properly check endpoint type
    can: mcba_usb: mcba_usb_start_xmit(): fix double dev_kfree_skb in error path
    ubifs: rename_whiteout: correct old_dir size computing
    ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock()
    ubifs: setflags: Make dirtied_ino_d 8 bytes aligned
    ubifs: Add missing iput if do_tmpfile() failed in rename whiteout
    ubifs: Fix deadlock in concurrent rename whiteout and inode writeback
    ubifs: rename_whiteout: Fix double free for whiteout_ui->data
    KVM: x86: fix sending PV IPI
    KVM: Prevent module exit until all VMs are freed
    scsi: qla2xxx: Use correct feature type field during RFF_ID processing
    scsi: qla2xxx: Reduce false trigger to login
    scsi: qla2xxx: Fix hang due to session stuck
    scsi: qla2xxx: Fix incorrect reporting of task management failure
    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair()
    scsi: qla2xxx: Check for firmware dump already collected
    scsi: qla2xxx: Fix warning for missing error code
    scsi: qla2xxx: Fix stuck session in gpdb
    powerpc: Fix build errors with newer binutils
    powerpc/lib/sstep: Fix build errors with newer binutils
    powerpc/lib/sstep: Fix 'sthcx' instruction
    mmc: host: Return an error when ->enable_sdio_irq() ops is missing
    media: hdpvr: initialize dev->worker at hdpvr_register_videodev
    media: Revert "media: em28xx: add missing em28xx_close_extension"
    video: fbdev: sm712fb: Fix crash in smtcfb_write()
    ARM: mmp: Fix failure to remove sram device
    ARM: tegra: tamonten: Fix I2C3 pad setting
    media: cx88-mpeg: clear interrupt status register before streaming video
  * ASoC: soc-core: skip zero num_dai component in searching dai name
      sound/soc/soc-core.c
    video: fbdev: udlfb: replace snprintf in show functions with sysfs_emit
    video: fbdev: omapfb: panel-tpo-td043mtea1: Use sysfs_emit() instead of snprintf()
    video: fbdev: omapfb: panel-dsi-cm: Use sysfs_emit() instead of snprintf()
    ARM: dts: bcm2837: Add the missing L1/L2 cache information
    ARM: dts: qcom: fix gic_irq_domain_translate warnings for msm8960
    video: fbdev: omapfb: acx565akm: replace snprintf with sysfs_emit
    video: fbdev: cirrusfb: check pixclock to avoid divide by zero
    video: fbdev: w100fb: Reset global state
    video: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow
    ntfs: add sanity check on allocation size
  * ext4: don't BUG if someone dirty pages without asking ext4 first
      fs/ext4/inode.c
    spi: tegra20: Use of_device_get_match_data()
  * PM: core: keep irq flags in device_pm_check_callbacks()
      drivers/base/power/main.c
    ACPI/APEI: Limit printable size of BERT table data
    Revert "Revert "block, bfq: honor already-setup queue merges""
    lib/raid6/test/Makefile: Use $(pound) instead of \# for Make 4.3
    ACPICA: Avoid walking the ACPI Namespace if it is not there
    bfq: fix use-after-free in bfq_dispatch_request
    irqchip/nvic: Release nvic_base upon failure
  * irqchip/qcom-pdc: Fix broken locking
      drivers/irqchip/qcom-pdc.c
    Fix incorrect type in assignment of ipv6 port for audit
  * loop: use sysfs_emit() in the sysfs xxx show()
      drivers/block/loop.c
    selinux: use correct type for context length
    lib/test: use after free in register_test_dev_kmod()
    NFSv4/pNFS: Fix another issue with a list iterator pointing to the head
    net/x25: Fix null-ptr-deref caused by x25_disconnect
    qlcnic: dcb: default to returning -EOPNOTSUPP
    net: phy: broadcom: Fix brcm_fet_config_init()
    xen: fix is_xen_pmu()
    clk: qcom: gcc-msm8994: Fix gpll4 width
  * netfilter: nf_conntrack_tcp: preserve liberal flag in tcp options
      net/netfilter/nf_conntrack_proto_tcp.c
    jfs: fix divide error in dbNextAG
    kgdbts: fix return value of __setup handler
    kgdboc: fix return value of __setup handler
    tty: hvc: fix return value of __setup handler
    pinctrl/rockchip: Add missing of_node_put() in rockchip_pinctrl_probe
    pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe
    pinctrl: mediatek: Fix missing of_node_put() in mtk_pctrl_init
    NFS: remove unneeded check in decode_devicenotify_args()
    clk: tegra: tegra124-emc: Fix missing put_device() call in emc_ensure_emc_driver
    clk: clps711x: Terminate clk_div_table with sentinel element
    clk: loongson1: Terminate clk_div_table with sentinel element
    clk: actions: Terminate clk_div_table with sentinel element
    remoteproc: qcom_wcnss: Add missing of_node_put() in wcnss_alloc_memory_region
  * clk: qcom: clk-rcg2: Update the frac table for pixel clock
      drivers/clk/qcom/clk-rcg2.c
    dma-debug: fix return value of __setup handlers
    iio: adc: Add check for devm_request_threaded_irq
    serial: 8250: Fix race condition in RTS-after-send handling
    serial: 8250_mid: Balance reference count for PCI DMA device
    clk: qcom: ipq8074: Use floor ops for SDCC1 clock
    staging:iio:adc:ad7280a: Fix handing of device address bit reversing.
    pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add()
    mxser: fix xmit_buf leak in activate when LSR == 0xff
    mfd: asic3: Add missing iounmap() on error asic3_mfd_probe
  * tcp: ensure PMTU updates are processed during fastopen
      net/ipv4/tcp_output.c
    selftests/bpf/test_lirc_mode2.sh: Exit with proper code
    i2c: mux: demux-pinctrl: do not deactivate a master that is not active
  * af_netlink: Fix shift out of bounds in group mask calculation
      net/netlink/af_netlink.c
    USB: storage: ums-realtek: fix error code in rts51x_read_mem()
    mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init
    MIPS: RB532: fix return value of __setup handler
    vxcan: enable local echo for sent CAN frames
    mfd: mc13xxx: Add check for mc13xxx_irq_request
    powerpc/sysdev: fix incorrect use to determine if list is empty
  * PCI: Reduce warnings on possible RW1C corruption
      drivers/pci/access.c
      include/linux/pci.h
    power: supply: wm8350-power: Add missing free in free_charger_irq
    power: supply: wm8350-power: Handle error for wm8350_register_irq
    i2c: xiic: Make bus names unique
    hv_balloon: rate-limit "Unhandled message" warning
    KVM: x86/emulator: Defer not-present segment check in __load_segment_descriptor()
    KVM: x86: Fix emulation in writing cr8
    powerpc/Makefile: Don't pass -mcpu=powerpc64 when building 32-bit
    drm/bridge: cdns-dsi: Make sure to to create proper aliases for dt
    power: supply: bq24190_charger: Fix bq24190_vbus_is_enabled() wrong false return
    drm/tegra: Fix reference leak in tegra_dsi_ganged_probe
    ext2: correct max file size computing
    TOMOYO: fix __setup handlers return values
    scsi: pm8001: Fix abort all task initialization
    scsi: pm8001: Fix payload initialization in pm80xx_set_thermal_config()
    scsi: pm8001: Fix command initialization in pm8001_chip_ssp_tm_req()
    scsi: pm8001: Fix command initialization in pm80XX_send_read_log()
    dm crypt: fix get_key_size compiler warning if !CONFIG_KEYS
    iwlwifi: Fix -EIO error code that is never returned
    HID: i2c-hid: fix GET/SET_REPORT for unnumbered reports
    power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init
    ray_cs: Check ioremap return value
    power: reset: gemini-poweroff: Fix IRQ check in gemini_poweroff_probe
    KVM: PPC: Fix vmx/vsx mixup in mmio emulation
    ath9k_htc: fix uninit value bugs
    drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes()
  * drm/edid: Don't clear formats if using deep color
      drivers/gpu/drm/drm_edid.c
    mtd: onenand: Check for error irq
    Bluetooth: hci_serdev: call init_rwsem() before p->open()
    ath10k: fix memory overwrite of the WoWLAN wakeup packet pattern
    drm/bridge: Fix free wrong object in sii8620_init_rcp_input_dev
    mmc: davinci_mmc: Handle error for clk_enable
    ASoC: msm8916-wcd-digital: Fix missing clk_disable_unprepare() in msm8916_wcd_digital_probe
    ASoC: imx-es8328: Fix error return code in imx_es8328_probe()
    ASoC: mxs: Fix error handling in mxs_sgtl5000_probe
    ASoC: dmaengine: do not use a NULL prepare_slave_config() callback
    video: fbdev: omapfb: Add missing of_node_put() in dvic_probe_of
    ASoC: fsi: Add check for clk_enable
    ASoC: wm8350: Handle error for wm8350_register_irq
    ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe
    media: stk1160: If start stream fails, return buffers with VB2_BUF_STATE_QUEUED
    ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction
    memory: emif: check the pointer temp in get_device_details()
    memory: emif: Add check for setup_interrupts
    ASoC: atmel_ssc_dai: Handle errors for clk_enable
    ASoC: mxs-saif: Handle errors for clk_enable
  * printk: fix return value of printk.devkmsg __setup handler
      kernel/printk/printk.c
    arm64: dts: broadcom: Fix sata nodename
    arm64: dts: ns2: Fix spi-cpol and spi-cpha property
    ALSA: spi: Add check for clk_enable()
    ASoC: ti: davinci-i2s: Add check for clk_enable()
    ASoC: rt5663: check the return value of devm_kzalloc() in rt5663_parse_dp()
    media: usb: go7007: s2250-board: fix leak in probe()
    media: em28xx: initialize refcount before kref_get
    soc: ti: wkup_m3_ipc: Fix IRQ check in wkup_m3_ipc_probe
    ARM: dts: qcom: ipq4019: fix sleep clock
    video: fbdev: fbcvt.c: fix printing in fb_cvt_print_name()
    video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()
    media: coda: Fix missing put_device() call in coda_get_vdoa_data
    perf/x86/intel/pt: Fix address filter config for 32-bit kernel
  * perf/core: Fix address filter parser for multiple filters
      kernel/events/core.c
  * sched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa
      kernel/sched/debug.c
    clocksource: acpi_pm: fix return value of __setup handler
    hwmon: (pmbus) Add Vin unit off handling
    crypto: ccp - ccp_dmaengine_unregister release dma channels
    ACPI: APEI: fix return value of __setup handlers
  * clocksource/drivers/timer-of: Check return value of of_iomap in timer_of_base_init()
      drivers/clocksource/timer-of.c
  * crypto: vmx - add missing dependencies
      drivers/crypto/vmx/Kconfig
    hwrng: atmel - disable trng on failure path
    PM: suspend: fix return value of __setup handler
    PM: hibernate: fix __setup handler error handling
  * block: don't delete queue kobject before its children
      block/blk-sysfs.c
    hwmon: (sch56xx-common) Replace WDOG_ACTIVE with WDOG_HW_RUNNING
    hwmon: (pmbus) Add mutex to regulator ops
    spi: pxa2xx-pci: Balance reference count for PCI DMA device
    selftests/x86: Add validity check and allow field splitting
    spi: tegra114: Add missing IRQ check in tegra_spi_probe
    crypto: mxs-dcp - Fix scatterlist processing
  * crypto: authenc - Fix sleep in atomic context in decrypt_tail
      crypto/authenc.c
    regulator: qcom_smd: fix for_each_child.cocci warnings
    PCI: pciehp: Clear cmd_busy bit in polling mode
    brcmfmac: pcie: Replace brcmf_pcie_copy_mem_todev with memcpy_toio
    brcmfmac: firmware: Allocate space for default boardrev in nvram
    media: davinci: vpif: fix unbalanced runtime PM get
    DEC: Limit PMAX memory probing to R3k systems
    lib/raid6/test: fix multiple definition linking error
    thermal: int340x: Increase bitmap size
    carl9170: fix missing bit-wise or operator for tx_params
    ARM: dts: exynos: add missing HDMI supplies on SMDK5420
    ARM: dts: exynos: add missing HDMI supplies on SMDK5250
    ARM: dts: exynos: fix UART3 pins configuration in Exynos5250
    ARM: dts: at91: sama5d2: Fix PMERRLOC resource size
    video: fbdev: atari: Atari 2 bpp (STe) palette bugfix
    video: fbdev: sm712fb: Fix crash in smtcfb_read()
  * drm/edid: check basic audio support on CEA extension block
      drivers/gpu/drm/drm_edid.c
  * block: don't merge across cgroup boundaries if blkcg is enabled
      block/blk-merge.c
      include/linux/blk-cgroup.h
    drivers: hamradio: 6pack: fix UAF bug caused by mod_timer()
    ACPI: properties: Consistently return -ENOENT if there are no more references
    powerpc/kvm: Fix kvm_use_magic_page
    drbd: fix potential silent data corruption
  * mm,hwpoison: unmap poisoned page before invalidation
      mm/memory.c
    ALSA: hda/realtek: Fix audio regression on Mi Notebook Pro 2020
    ALSA: cs4236: fix an incorrect NULL check on list iterator
  * Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads"
      drivers/input/input.c
    qed: validate and restrict untrusted VFs vlan promisc mode
    qed: display VF trust config
    scsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands
    mempolicy: mbind_range() set_policy() after vma_merge()
  * mm: invalidate hwpoison page cache page in fault path
      mm/memory.c
  * mm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node
      mm/page_alloc.c
    jffs2: fix memory leak in jffs2_scan_medium
    jffs2: fix memory leak in jffs2_do_mount_fs
    jffs2: fix use-after-free in jffs2_clear_xattr_subsystem
    can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path
    pinctrl: samsung: drop pin banks references on error paths
  * f2fs: fix to unlock page correctly in error path of is_alive()
      fs/f2fs/gc.c
  * NFSD: prevent integer overflow on 32 bit systems
      include/linux/sunrpc/xdr.h
    NFSD: prevent underflow in nfssvc_decode_writeargs()
    SUNRPC: avoid race between mod_timer() and del_timer_sync()
    Documentation: update stable tree link
    Documentation: add link to stable release candidate tree
  * ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE
      kernel/ptrace.c
    clk: uniphier: Fix fixed-rate initialization
  * iio: inkern: make a best effort on offset calculation
      drivers/iio/inkern.c
  * iio: inkern: apply consumer scale when no channel scale is available
      drivers/iio/inkern.c
  * iio: inkern: apply consumer scale on IIO_VAL_INT cases
      drivers/iio/inkern.c
    iio: afe: rescale: use s64 for temporary scale calculations
  * coresight: Fix TRCCONFIGR.QE sysfs interface
      drivers/hwtracing/coresight/coresight-etm4x-sysfs.c
  * xhci: make xhci_handshake timeout for xhci_reset() adjustable
      drivers/usb/host/xhci-hub.c
      drivers/usb/host/xhci-mem.c
      drivers/usb/host/xhci.c
      drivers/usb/host/xhci.h
    USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c
    virtio-blk: Use blk_validate_block_size() to validate block size
  * block: Add a helper to validate the block size
      include/linux/blkdev.h
    tpm: fix reference counting for struct tpm_chip
  * fuse: fix pipe buffer lifetime for direct_io
      fs/fuse/dev.c
      fs/fuse/file.c
      fs/fuse/fuse_i.h
  * af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
      net/key/af_key.c
  * spi: Fix erroneous sgs value with min_t()
      drivers/spi/spi.c
    net:mcf8390: Use platform_get_irq() to get the interrupt
  * spi: Fix invalid sgs value
      drivers/spi/spi.c
    ethernet: sun: Free the coherent when failing in probing
    virtio_console: break out of buf poll on remove
  * xfrm: fix tunnel model fragmentation behavior
      net/ipv6/xfrm6_output.c
      net/xfrm/xfrm_interface.c
  * netdevice: add the case if dev is NULL
      include/linux/netdevice.h
  * USB: serial: simple: add Nokia phone driver
      drivers/usb/serial/Kconfig
    USB: serial: pl2303: add IBM device IDs
  * ANDROID: incremental-fs: limit mount stack depth
      fs/incfs/data_mgmt.h
      fs/incfs/vfs.c
  * UPSTREAM: binderfs: use __u32 for device numbers
      include/uapi/linux/android/binderfs.h
    Revert "ANDROID: dm-bow: Protect Ranges fetched and erased from the RB tree"
    Merge 4.19.237 into android-4.19-stable
Linux 4.19.237
    llc: only change llc->dev when bind() succeeds
    nds32: fix access_ok() checks in get/put_user
    mac80211: fix potential double free on mesh join
    crypto: qat - disable registration of algorithms
    ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU
    ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3
    ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board
    netfilter: nf_tables: initialize registers in nft_do_chain()
    drivers: net: xgene: Fix regression in CRC stripping
    ALSA: pci: fix reading of swapped values from pcmreg in AC97 codec
    ALSA: cmipci: Restore aux vol on suspend/resume
  * ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB
      sound/usb/mixer_quirks.c
  * ALSA: pcm: Add stream lock during PCM reset ioctl operations
      sound/core/pcm_native.c
    ALSA: oss: Fix PCM OSS buffer allocation overflow
    ASoC: sti: Fix deadlock via snd_pcm_stop_xrun() call
    llc: fix netdevice reference leaks in llc_ui_bind()
    thermal: int340x: fix memory leak in int3400_notify()
    staging: fbtft: fb_st7789v: reset display before initialization
  * esp: Fix possible buffer overflow in ESP transformation
      include/net/esp.h
      include/net/sock.h
      net/core/sock.c
      net/ipv4/esp4.c
      net/ipv6/esp6.c
  * net: ipv6: fix skb_over_panic in __ip6_append_data
      net/ipv6/ip6_output.c
    nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION
    Merge 4.19.236 into android-4.19-stable
Linux 4.19.236
    perf symbols: Fix symbol size calculation condition
  * Input: aiptek - properly check endpoint type
      drivers/input/tablet/aiptek.c
  * usb: gadget: Fix use-after-free bug by not setting udc->dev.driver
      drivers/usb/gadget/udc/core.c
  * usb: gadget: rndis: prevent integer overflow in rndis_set_response()
      drivers/usb/gadget/function/rndis.c
    net: dsa: Add missing of_node_put() in dsa_port_parse_of
  * net: handle ARPHRD_PIMREG in dev_is_mac_header_xmit()
      include/linux/if_arp.h
    drm/panel: simple: Fix Innolux G070Y2-L01 BPP settings
    hv_netvsc: Add check for kvmalloc_array
    atm: eni: Add check for dma_map_single
  * net/packet: fix slab-out-of-bounds access in packet_recvmsg()
      net/packet/af_packet.c
    efi: fix return value of __setup handlers
    ocfs2: fix crash when initialize filecheck kobj fails
    crypto: qcom-rng - ensure buffer for generate is completely filled
  * arm64: Use the clearbhb instruction in mitigations
      arch/arm64/include/asm/assembler.h
      arch/arm64/include/asm/cpufeature.h
      arch/arm64/include/asm/sysreg.h
      arch/arm64/include/asm/vectors.h
      arch/arm64/kernel/cpu_errata.c
      arch/arm64/kernel/cpufeature.c
      arch/arm64/kernel/entry.S
  * arm64: add ID_AA64ISAR2_EL1 sys register
      arch/arm64/include/asm/cpu.h
      arch/arm64/include/asm/sysreg.h
      arch/arm64/kernel/cpufeature.c
      arch/arm64/kernel/cpuinfo.c
  * KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated
      arch/arm64/include/asm/kvm_host.h
  * arm64: Mitigate spectre style branch history side channels
      arch/arm64/Kconfig
      arch/arm64/include/asm/assembler.h
      arch/arm64/include/asm/cpufeature.h
      arch/arm64/include/asm/cputype.h
      arch/arm64/include/asm/sysreg.h
      arch/arm64/include/asm/vectors.h
      arch/arm64/kernel/cpu_errata.c
  * KVM: arm64: Add templates for BHB mitigation sequences
      arch/arm64/include/asm/cpucaps.h
      arch/arm64/include/asm/kvm_mmu.h
      arch/arm64/include/asm/mmu.h
      arch/arm64/kernel/cpu_errata.c
  * arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2
      arch/arm64/include/asm/cpufeature.h
      arch/arm64/kernel/cpu_errata.c
  * arm64: Add percpu vectors for EL1
      arch/arm64/include/asm/mmu.h
      arch/arm64/include/asm/vectors.h
      arch/arm64/kernel/cpufeature.c
      arch/arm64/kernel/entry.S
  * arm64: entry: Add macro for reading symbol addresses from the trampoline
      arch/arm64/kernel/entry.S
  * arm64: entry: Add vectors that have the bhb mitigation sequences
      arch/arm64/include/asm/assembler.h
      arch/arm64/include/asm/vectors.h
      arch/arm64/kernel/entry.S
      include/linux/arm-smccc.h
  * arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations
      arch/arm64/kernel/entry.S
  * arm64: entry: Allow the trampoline text to occupy multiple pages
      arch/arm64/include/asm/fixmap.h
      arch/arm64/include/asm/sections.h
      arch/arm64/kernel/entry.S
      arch/arm64/kernel/vmlinux.lds.S
      arch/arm64/mm/mmu.c
  * arm64: entry: Make the kpti trampoline's kpti sequence optional
      arch/arm64/kernel/entry.S
  * arm64: entry: Move trampoline macros out of ifdef'd section
      arch/arm64/kernel/entry.S
  * arm64: entry: Don't assume tramp_vectors is the start of the vectors
      arch/arm64/kernel/entry.S
  * arm64: entry: Allow tramp_alias to access symbols after the 4K boundary
      arch/arm64/kernel/entry.S
  * arm64: entry: Move the trampoline data page before the text page
      arch/arm64/include/asm/fixmap.h
      arch/arm64/kernel/entry.S
  * arm64: entry: Free up another register on kpti's tramp_exit path
      arch/arm64/kernel/entry.S
  * arm64: entry: Make the trampoline cleanup optional
      arch/arm64/kernel/entry.S
  * arm64: entry.S: Add ventry overflow sanity checks
      arch/arm64/kernel/entry.S
  * arm64: Add Cortex-X2 CPU part definition
      arch/arm64/include/asm/cputype.h
  * arm64: Add Neoverse-N2, Cortex-A710 CPU part definition
      arch/arm64/include/asm/cputype.h
  * arm64: Add part number for Arm Cortex-A77
      arch/arm64/include/asm/cputype.h
  * fs: sysfs_emit: Remove PAGE_SIZE alignment check
      fs/sysfs/file.c
  * mm: fix dereference a null pointer in migrate[_huge]_page_move_mapping()
      mm/migrate.c
  * cpuset: Fix unsafe lock order between cpuset lock and cpuslock
      kernel/cgroup/cpuset.c
    ia64: ensure proper NUMA distance and possible map initialization
  * sched/topology: Fix sched_domain_topology_level alloc in sched_init_numa()
      kernel/sched/topology.c
  * sched/topology: Make sched_init_numa() use a set for the deduplicating sort
      include/linux/topology.h
      kernel/sched/topology.c
    kselftest/vm: fix tests build with old libc
    sfc: extend the locking on mcdi->seqno
  * tcp: make tcp_read_sock() more robust
      net/ipv4/tcp.c
  * nl80211: Update bss channel on channel switch for P2P_CLIENT
      net/wireless/nl80211.c
    atm: firestream: check the return value of ioremap() in fs_init()
    can: rcar_canfd: rcar_canfd_channel_probe(): register the CAN device when fully ready
  * ARM: 9178/1: fix unmet dependency on BITREVERSE for HAVE_ARCH_BITREVERSE
      lib/Kconfig
    MIPS: smp: fill in sibling and core maps earlier
    ARM: dts: rockchip: fix a typo on rk3288 crypto-controller
    arm64: dts: rockchip: reorder rk3399 hdmi clocks
    arm64: dts: rockchip: fix rk3399-puma eMMC HS400 signal integrity
  * xfrm: Fix xfrm migrate issues when address family changes
      net/xfrm/xfrm_state.c
  * xfrm: Check if_id in xfrm_migrate
      include/net/xfrm.h
      net/key/af_key.c
      net/xfrm/xfrm_policy.c
      net/xfrm/xfrm_state.c
      net/xfrm/xfrm_user.c
  * sctp: fix the processing for INIT_ACK chunk
      net/sctp/sm_statefuns.c
  * sctp: fix the processing for INIT chunk
      net/sctp/sm_statefuns.c
  * Revert "xfrm: state and policy should fail if XFRMA_IF_ID 0"
      net/xfrm/xfrm_user.c
    Merge 4.19.235 into android-4.19-stable
Linux 4.19.235
    btrfs: unlock newly allocated extent buffer after error
  * ext4: add check to prevent attempting to resize an fs with sparse_super2
      fs/ext4/resize.c
    ARM: fix Thumb2 regression with Spectre BHB
  * virtio: acknowledge all features before access
      include/linux/virtio_config.h
  * virtio: unexport virtio_finalize_features
      include/linux/virtio.h
    riscv: Fix auipc+jalr relocation range checks
    net: macb: Fix lost RX packet wakeup race in NAPI receive
    staging: gdm724x: fix use after free in gdm_lte_rx()
    ARM: Spectre-BHB: provide empty stub for non-config
    selftests/memfd: clean up mapping in mfd_fail_write
  * tracing: Ensure trace buffer is at least 4096 bytes large
      kernel/trace/trace.c
    Revert "xen-netback: Check for hotplug-status existence before watching"
    Revert "xen-netback: remove 'hotplug-status' once it has served its purpose"
  * net-sysfs: add check for netdevice being present to speed_show
      net/core/net-sysfs.c
  * sctp: fix kernel-infoleak for SCTP sockets
      net/sctp/diag.c
    net: phy: DP83822: clear MISR2 register to disable interrupts
    gianfar: ethtool: Fix refcount leak in gfar_get_ts_info
    gpio: ts4900: Do not set DAT and OE together
    NFC: port100: fix use-after-free in port100_send_complete
  * net/mlx5: Fix size field in bufferx_reg struct
      include/linux/mlx5/mlx5_ifc.h
    ax25: Fix NULL pointer dereference in ax25_kill_by_device
    net: ethernet: lpc_eth: Handle error for clk_enable
    net: ethernet: ti: cpts: Handle error for clk_enable
    ethernet: Fix error handling in xemaclite_of_probe
    qed: return status of qed_iov_get_link
    net: qlogic: check the return value of dma_alloc_coherent() in qed_vf_hw_prepare()
    ANDROID: dm-bow: Protect Ranges fetched and erased from the RB tree

Bug: 229982346
Change-Id: I590f3a34c3672086a50ac0fba0b8514a4cc2016a
Signed-off-by: Lucas Wei <lucaswei@google.com>
2022-05-12 18:44:49 +08:00
Greg Kroah-Hartman
086155f9e8 Merge 4.19.236 into android-4.19-stable
Changes in 4.19.236
	Revert "xfrm: state and policy should fail if XFRMA_IF_ID 0"
	sctp: fix the processing for INIT chunk
	sctp: fix the processing for INIT_ACK chunk
	xfrm: Check if_id in xfrm_migrate
	xfrm: Fix xfrm migrate issues when address family changes
	arm64: dts: rockchip: fix rk3399-puma eMMC HS400 signal integrity
	arm64: dts: rockchip: reorder rk3399 hdmi clocks
	ARM: dts: rockchip: fix a typo on rk3288 crypto-controller
	MIPS: smp: fill in sibling and core maps earlier
	ARM: 9178/1: fix unmet dependency on BITREVERSE for HAVE_ARCH_BITREVERSE
	can: rcar_canfd: rcar_canfd_channel_probe(): register the CAN device when fully ready
	atm: firestream: check the return value of ioremap() in fs_init()
	nl80211: Update bss channel on channel switch for P2P_CLIENT
	tcp: make tcp_read_sock() more robust
	sfc: extend the locking on mcdi->seqno
	kselftest/vm: fix tests build with old libc
	sched/topology: Make sched_init_numa() use a set for the deduplicating sort
	sched/topology: Fix sched_domain_topology_level alloc in sched_init_numa()
	ia64: ensure proper NUMA distance and possible map initialization
	cpuset: Fix unsafe lock order between cpuset lock and cpuslock
	mm: fix dereference a null pointer in migrate[_huge]_page_move_mapping()
	fs: sysfs_emit: Remove PAGE_SIZE alignment check
	arm64: Add part number for Arm Cortex-A77
	arm64: Add Neoverse-N2, Cortex-A710 CPU part definition
	arm64: Add Cortex-X2 CPU part definition
	arm64: entry.S: Add ventry overflow sanity checks
	arm64: entry: Make the trampoline cleanup optional
	arm64: entry: Free up another register on kpti's tramp_exit path
	arm64: entry: Move the trampoline data page before the text page
	arm64: entry: Allow tramp_alias to access symbols after the 4K boundary
	arm64: entry: Don't assume tramp_vectors is the start of the vectors
	arm64: entry: Move trampoline macros out of ifdef'd section
	arm64: entry: Make the kpti trampoline's kpti sequence optional
	arm64: entry: Allow the trampoline text to occupy multiple pages
	arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations
	arm64: entry: Add vectors that have the bhb mitigation sequences
	arm64: entry: Add macro for reading symbol addresses from the trampoline
	arm64: Add percpu vectors for EL1
	arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2
	KVM: arm64: Add templates for BHB mitigation sequences
	arm64: Mitigate spectre style branch history side channels
	KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated
	arm64: add ID_AA64ISAR2_EL1 sys register
	arm64: Use the clearbhb instruction in mitigations
	crypto: qcom-rng - ensure buffer for generate is completely filled
	ocfs2: fix crash when initialize filecheck kobj fails
	efi: fix return value of __setup handlers
	net/packet: fix slab-out-of-bounds access in packet_recvmsg()
	atm: eni: Add check for dma_map_single
	hv_netvsc: Add check for kvmalloc_array
	drm/panel: simple: Fix Innolux G070Y2-L01 BPP settings
	net: handle ARPHRD_PIMREG in dev_is_mac_header_xmit()
	net: dsa: Add missing of_node_put() in dsa_port_parse_of
	usb: gadget: rndis: prevent integer overflow in rndis_set_response()
	usb: gadget: Fix use-after-free bug by not setting udc->dev.driver
	Input: aiptek - properly check endpoint type
	perf symbols: Fix symbol size calculation condition
	Linux 4.19.236

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I03683d55b33b02b7c6f1a0068786de059209747d
2022-03-23 12:26:14 +01:00
Julian Braha
d00275fb39 ARM: 9178/1: fix unmet dependency on BITREVERSE for HAVE_ARCH_BITREVERSE
[ Upstream commit 11c57c3ba94da74c3446924260e34e0b1950b5d7 ]

Resending this to properly add it to the patch tracker - thanks for letting
me know, Arnd :)

When ARM is enabled, and BITREVERSE is disabled,
Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for HAVE_ARCH_BITREVERSE
  Depends on [n]: BITREVERSE [=n]
  Selected by [y]:
  - ARM [=y] && (CPU_32v7M [=n] || CPU_32v7 [=y]) && !CPU_32v6 [=n]

This is because ARM selects HAVE_ARCH_BITREVERSE
without selecting BITREVERSE, despite
HAVE_ARCH_BITREVERSE depending on BITREVERSE.

This unmet dependency bug was found by Kismet,
a static analysis tool for Kconfig. Please advise if this
is not the appropriate solution.

Signed-off-by: Julian Braha <julianbraha@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-03-23 09:10:41 +01:00
Vincenzo Frascino
5904774ac1 UPSTREAM: lib/vdso: Provide generic VDSO implementation
In the last few years the kernel gained quite some architecture specific
vdso implementations which contain very similar code.

Introduce a generic VDSO implementation of gettimeofday() which will be
shareable between architectures once they are converted over.

The implementation is based on the current x86 VDSO code.

[ tglx: Massaged changelog and made the kernel doc tabular ]

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Shijith Thotton <sthotton@marvell.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Huw Davies <huw@codeweavers.com>
Link: https://lkml.kernel.org/r/20190621095252.32307-3-vincenzo.frascino@arm.com
(cherry picked from commit 00b26474c2f1613d7ab894c525f775c67c8a9e8f)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 154668398
Change-Id: I6d3031546e60ea5a883ea34198999a3fd0f34351
Signed-off-by: Chiawei Wang <chiaweiwang@google.com>
2020-06-09 17:51:52 +08:00
Vincenzo Frascino
4e7e5eab74 UPSTREAM: lib/vdso: Provide generic VDSO implementation
In the last few years the kernel gained quite some architecture specific
vdso implementations which contain very similar code.

Introduce a generic VDSO implementation of gettimeofday() which will be
shareable between architectures once they are converted over.

The implementation is based on the current x86 VDSO code.

[ tglx: Massaged changelog and made the kernel doc tabular ]

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Shijith Thotton <sthotton@marvell.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Huw Davies <huw@codeweavers.com>
Link: https://lkml.kernel.org/r/20190621095252.32307-3-vincenzo.frascino@arm.com
(cherry picked from commit 00b26474c2f1613d7ab894c525f775c67c8a9e8f)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 154668398
Change-Id: I6d3031546e60ea5a883ea34198999a3fd0f34351
2020-04-27 22:51:55 -07:00
Yogesh Lal
04fc8d3b4f lib: stackdepot: Add support to configure STACK_HASH_SIZE
Use STACK_HASH_ORDER_SHIFT to configure STACK_HASH_SIZE.

Aim is to have configurable value for  STACK_HASH_SIZE,
so depend on use case one can configure it.

One example is of Page Owner, default value of
STACK_HASH_SIZE lead stack depot to consume 8MB of static memory.
Making it configurable and use lower value helps to enable features like
CONFIG_PAGE_OWNER without any significant overhead.

Change-Id: If6b64d4d4d42c763b00e2719fde5a25e94c10597
Signed-off-by: Yogesh Lal <ylal@codeaurora.org>
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
2019-10-29 10:50:38 +05:30
Andy Shevchenko
fd7338ef62 lib/Kconfig: remove 'default n' for tests
It seems contributors follow the style of Kconfig entries where explicit
'default n' is present.  The default 'default' is 'n' already, thus, drop
these lines from Kconfig to make it more clear.

Link: http://lkml.kernel.org/r/20180719085131.79541-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Coly Li <colyli@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22 10:52:48 -07:00
Coly Li
feba04fd2c lib: add crc64 calculation routines
Patch series "add crc64 calculation as kernel library", v5.

This patchset adds basic implementation of crc64 calculation as a Linux
kernel library.  Since bcache already does crc64 by itself, this patchset
also modifies bcache code to use the new crc64 library routine.

Currently bcache is the only user of crc64 calculation, another potential
user is bcachefs which is on the way to be in mainline kernel.  Therefore
it makes sense to make crc64 calculation to be a public library.

bcache uses crc64 as storage checksum, if a change of crc lib routines
results an inconsistent result, the unmatched checksum may make bcache
'think' the on-disk is corrupted, such a change should be avoided or
detected as early as possible.  Therefore a patch is being prepared which
adds a crc test framework, to check consistency of different calculations.

This patch (of 2):

Add the re-write crc64 calculation routines for Linux kernel.  The CRC64
polynomical arithmetic follows ECMA-182 specification, inspired by CRC
paper of Dr.  Ross N.  Williams (see
http://www.ross.net/crc/download/crc_v3.txt) and other public domain
implementations.

All the changes work in this way,
- When Linux kernel is built, host program lib/gen_crc64table.c will be
  compiled to lib/gen_crc64table and executed.
- The output of gen_crc64table execution is an array called as lookup
  table (a.k.a POLY 0x42f0e1eba9ea369) which contain 256 64-bit long
  numbers, this table is dumped into header file lib/crc64table.h.
- Then the header file is included by lib/crc64.c for normal 64bit crc
  calculation.
- Function declaration of the crc64 calculation routines is placed in
  include/linux/crc64.h

Currently bcache is the only user of crc64_be(), another potential user is
bcachefs which is on the way to be in mainline kernel.  Therefore it makes
sense to move crc64 calculation into lib/crc64.c as public code.

[colyli@suse.de: fix review comments from v4]
  Link: http://lkml.kernel.org/r/20180726053352.2781-2-colyli@suse.de
Link: http://lkml.kernel.org/r/20180718165545.1622-2-colyli@suse.de
Signed-off-by: Coly Li <colyli@suse.de>
Co-developed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Michael Lyle <mlyle@lyle.org>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Eric Biggers <ebiggers3@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Noah Massey <noah.massey@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22 10:52:48 -07:00
Linus Torvalds
6d90eb7ba3 Merge tag 'dma-rename-4.18' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping rename from Christoph Hellwig:
 "Move all the dma-mapping code to kernel/dma and lose their dma-*
  prefixes"

* tag 'dma-rename-4.18' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: move all DMA mapping code to kernel/dma
  dma-mapping: use obj-y instead of lib-y for generic dma ops
2018-06-20 16:30:01 +09:00
Mauro Carvalho Chehab
5fb94e9ca3 docs: Fix some broken references
As we move stuff around, some doc references are broken. Fix some of
them via this script:
	./scripts/documentation-file-ref-check --fix

Manually checked if the produced result is valid, removing a few
false-positives.

Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Coly Li <colyli@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Christoph Hellwig
cf65a0f6f6 dma-mapping: move all DMA mapping code to kernel/dma
Currently the code is split over various files with dma- prefixes in the
lib/ and drives/base directories, and the number of files keeps growing.
Move them into a single directory to keep the code together and remove
the file name prefixes.  To match the irq infrastructure this directory
is placed under the kernel/ directory.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-14 08:50:37 +02:00
Linus Torvalds
763f96944c Merge tag 'mips_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from James Hogan:
 "These are the main MIPS changes for 4.18.

  Rough overview:

   - MAINTAINERS: Add Paul Burton as MIPS co-maintainer

   - Misc: Generic compiler intrinsics, Y2038 improvements, Perf+MT fixes

   - Platform support: Netgear WNR1000 V3, Microsemi Ocelot integrated
     switch, Ingenic watchdog cleanups

  More detailed  summary:

  Maintainers:

   - Add Paul Burton as MIPS co-maintainer, as I soon won't have access
     to much MIPS hardware, nor enough time to properly maintain MIPS on
     my own.

  Miscellaneous:

   - Use generic GCC library routines from lib/
     - Add notrace to generic ucmpdi2 implementation
     - Rename compiler intrinsic selects to GENERIC_LIB_*
     - vmlinuz: Use generic ashldi3

   - y2038: Convert update/read_persistent_clock() to *_clock64()
     - sni: Remove read_persistent_clock()

   - perf: Fix perf with MT counting other threads
     - Probe for per-TC perf counters in cpu-probe.c
     - Use correct VPE ID for VPE tracing

  Minor cleanups:

   - Avoid unneeded built-in.a in DTS dirs

   - sc-debugfs: Re-use kstrtobool_from_user

   - memset.S: Reinstate delay slot indentation

   - VPE: Fix spelling "uneeded" -> "Unneeded"

  Platform support:

  BCM47xx:

   - Add support for Netgear WNR1000 V3

   - firmware: Support small NVRAM partitions

   - Use __initdata for LEDs platform data

  Ingenic:

   - Watchdog driver & platform code improvements:
     - Disable clock after stopping counter
     - Use devm_* functions
     - Drop module remove function
     - Move platform reset code to restart handler in driver
     - JZ4740: Convert watchdog instantiation to DT
     - JZ4780: Fix watchdog DT node
     - qi_lb60_defconfig: Enable watchdog driver

  Microsemi:

   - Ocelot: Add support for integrated switch
     - pcb123: Connect phys to ports"

* tag 'mips_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits)
  MAINTAINERS: Add Paul Burton as MIPS co-maintainer
  MIPS: ptrace: Make FPU context layout comments match reality
  MIPS: memset.S: Reinstate delay slot indentation
  MIPS: perf: Fix perf with MT counting other threads
  MIPS: perf: Use correct VPE ID when setting up VPE tracing
  MIPS: perf: More robustly probe for the presence of per-tc counters
  MIPS: Probe for MIPS MT perf counters per TC
  MIPS: mscc: Connect phys to ports on ocelot_pcb123
  MIPS: mscc: Add switch to ocelot
  MIPS: JZ4740: Drop old platform reset code
  MIPS: qi_lb60: Enable the jz4740-wdt driver
  MIPS: JZ4780: dts: Fix watchdog node
  MIPS: JZ4740: dts: Add bindings for the jz4740-wdt driver
  watchdog: JZ4740: Drop module remove function
  watchdog: JZ4740: Register a restart handler
  watchdog: JZ4740: Use devm_* functions
  watchdog: JZ4740: Disable clock after stopping counter
  MIPS: VPE: Fix spelling mistake: "uneeded" -> "unneeded"
  MIPS: Re-use kstrtobool_from_user()
  MIPS: Convert update_persistent_clock() to update_persistent_clock64()
  ...
2018-06-12 12:56:02 -07:00
Linus Torvalds
7d3bf613e9 Merge tag 'libnvdimm-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
 "This adds a user for the new 'bytes-remaining' updates to
  memcpy_mcsafe() that you already received through Ingo via the
  x86-dax- for-linus pull.

  Not included here, but still targeting this cycle, is support for
  handling memory media errors (poison) consumed via userspace dax
  mappings.

  Summary:

   - DAX broke a fundamental assumption of truncate of file mapped
     pages. The truncate path assumed that it is safe to disconnect a
     pinned page from a file and let the filesystem reclaim the physical
     block. With DAX the page is equivalent to the filesystem block.
     Introduce dax_layout_busy_page() to enable filesystems to wait for
     pinned DAX pages to be released. Without this wait a filesystem
     could allocate blocks under active device-DMA to a new file.

   - DAX arranges for the block layer to be bypassed and uses
     dax_direct_access() + copy_to_iter() to satisfy read(2) calls.
     However, the memcpy_mcsafe() facility is available through the pmem
     block driver. In order to safely handle media errors, via the DAX
     block-layer bypass, introduce copy_to_iter_mcsafe().

   - Fix cache management policy relative to the ACPI NFIT Platform
     Capabilities Structure to properly elide cache flushes when they
     are not necessary. The table indicates whether CPU caches are
     power-fail protected. Clarify that a deep flush is always performed
     on REQ_{FUA,PREFLUSH} requests"

* tag 'libnvdimm-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (21 commits)
  dax: Use dax_write_cache* helpers
  libnvdimm, pmem: Do not flush power-fail protected CPU caches
  libnvdimm, pmem: Unconditionally deep flush on *sync
  libnvdimm, pmem: Complete REQ_FLUSH => REQ_PREFLUSH
  acpi, nfit: Remove ecc_unit_size
  dax: dax_insert_mapping_entry always succeeds
  libnvdimm, e820: Register all pmem resources
  libnvdimm: Debug probe times
  linvdimm, pmem: Preserve read-only setting for pmem devices
  x86, nfit_test: Add unit test for memcpy_mcsafe()
  pmem: Switch to copy_to_iter_mcsafe()
  dax: Report bytes remaining in dax_iomap_actor()
  dax: Introduce a ->copy_to_iter dax operation
  uio, lib: Fix CONFIG_ARCH_HAS_UACCESS_MCSAFE compilation
  xfs, dax: introduce xfs_break_dax_layouts()
  xfs: prepare xfs_break_layouts() for another layout type
  xfs: prepare xfs_break_layouts() to be called with XFS_MMAPLOCK_EXCL
  mm, fs, dax: handle layout changes to pinned dax mappings
  mm: fix __gup_device_huge vs unmap
  mm: introduce MEMORY_DEVICE_FS_DAX and CONFIG_DEV_PAGEMAP_OPS
  ...
2018-06-08 17:21:52 -07:00
Dan Williams
522239b445 uio, lib: Fix CONFIG_ARCH_HAS_UACCESS_MCSAFE compilation
Add a common Kconfig CONFIG_ARCH_HAS_UACCESS_MCSAFE that archs can
optionally select, and fixup the declaration of _copy_to_iter_mcsafe().

Fixes: 8780356ef6 ("x86/asm/memcpy_mcsafe: Define copy_to_iter_mcsafe()")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-05-22 23:17:03 -07:00
Christoph Hellwig
782e6769c0 dma-mapping: provide a generic dma-noncoherent implementation
Add a new dma_map_ops implementation that uses dma-direct for the
address mapping of streaming mappings, and which requires arch-specific
implemenations of coherent allocate/free.

Architectures have to provide flushing helpers to ownership trasnfers
to the device and/or CPU, and can provide optional implementations of
the coherent mmap functionality, and the cache_flush routines for
non-coherent long term allocations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
2018-05-19 08:46:12 +02:00
Christoph Hellwig
35ddb69cd2 dma-mapping: simplify Kconfig dependencies
ARCH_DMA_ADDR_T_64BIT is always true for 64-bit architectures now, so we
can skip the clause requiring it.  'n' is the default default, so no need
to explicitly state it.

Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-19 08:46:12 +02:00
Christoph Hellwig
09230cbc1b swiotlb: move the SWIOTLB config symbol to lib/Kconfig
This way we have one central definition of it, and user can select it as
needed.  The new option is not user visible, which is the behavior
it had in most architectures, with a few notable exceptions:

 - On x86_64 and mips/loongson3 it used to be user selectable, but
   defaulted to y.  It now is unconditional, which seems like the right
   thing for 64-bit architectures without guaranteed availablity of
   IOMMUs.
 - on powerpc the symbol is user selectable and defaults to n, but
   many boards select it.  This change assumes no working setup
   required a manual selection, but if that turned out to be wrong
   we'll have to add another select statement or two for the respective
   boards.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-09 06:58:01 +02:00
Christoph Hellwig
4965a68780 arch: define the ARCH_DMA_ADDR_T_64BIT config symbol in lib/Kconfig
Define this symbol if the architecture either uses 64-bit pointers or the
PHYS_ADDR_T_64BIT is set.  This covers 95% of the old arch magic.  We only
need an additional select for Xen on ARM (why anyway?), and we now always
set ARCH_DMA_ADDR_T_64BIT on mips boards with 64-bit physical addressing
instead of only doing it when highmem is set.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: James Hogan <jhogan@kernel.org>
2018-05-09 06:57:04 +02:00
Christoph Hellwig
f616ab59c2 dma-mapping: move the NEED_DMA_MAP_STATE config symbol to lib/Kconfig
This way we have one central definition of it, and user can select it as
needed.  Note that we now also always select it when CONFIG_DMA_API_DEBUG
is select, which fixes some incorrect checks in a few network drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
2018-05-09 06:56:08 +02:00
Christoph Hellwig
86596f0a28 scatterlist: move the NEED_SG_DMA_LENGTH config symbol to lib/Kconfig
This way we have one central definition of it, and user can select it as
needed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
2018-05-09 06:55:59 +02:00
Christoph Hellwig
a4ce5a48d7 iommu-helper: move the IOMMU_HELPER config symbol to lib/
This way we have one central definition of it, and user can select it as
needed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
2018-05-09 06:55:51 +02:00
Matt Redfearn
e3d5980568 lib: Rename compiler intrinsic selects to GENERIC_LIB_*
When these are included into arch Kconfig files, maintaining
alphabetical ordering of the selects means these get split up. To allow
for keeping things tidier and alphabetical, rename the selects to
GENERIC_LIB_*

Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
Acked-by: Palmer Dabbelt <palmer@sifive.com>
Cc: Antony Pavlov <antonynpavlov@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-riscv@lists.infradead.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/19049/
Signed-off-by: James Hogan <jhogan@kernel.org>
2018-04-23 16:39:36 +01:00
Zhichang Yuan
031e360186 lib: Add generic PIO mapping method
41f8bba7f5 ("of/pci: Add pci_register_io_range() and
pci_pio_to_address()") added support for PCI I/O space mapped into CPU
physical memory space.  With that support, the I/O ranges configured for
PCI/PCIe hosts on some architectures can be mapped to logical PIO and
converted easily between CPU address and the corresponding logical PIO.
Based on this, PCI I/O port space can be accessed via in/out accessors that
use memory read/write.

But on some platforms, there are bus hosts that access I/O port space with
host-local I/O port addresses rather than memory addresses.

Add a more generic I/O mapping method to support those devices.  With this
patch, both the CPU addresses and the host-local port can be mapped into
the logical PIO space with different logical/fake PIOs.  After this, all
the I/O accesses to either PCI MMIO devices or host-local I/O peripherals
can be unified into the existing I/O accessors defined in asm-generic/io.h
and be redirected to the right device-specific hooks based on the input
logical PIO.

Tested-by: dann frazier <dann.frazier@canonical.com>
Signed-off-by: Zhichang Yuan <yuanzhichang@hisilicon.com>
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
[bhelgaas: remove -EFAULT return from logic_pio_register_range() per
https://lkml.kernel.org/r/20180403143909.GA21171@ulmo, fix NULL pointer
checking per https://lkml.kernel.org/r/20180403211505.GA29612@embeddedor.com]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2018-03-21 17:18:34 -05:00
Linus Torvalds
2382dc9a3e Merge tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mapping
Pull dma mapping updates from Christoph Hellwig:
 "Except for a runtime warning fix from Christian this is all about
  consolidation of the generic no-IOMMU code, a well as the glue code
  for swiotlb.

  All the code is based on the x86 implementation with hooks to allow
  all architectures that aren't cache coherent to use it.

  The x86 conversion itself has been deferred because the x86
  maintainers were a little busy in the last months"

* tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mapping: (57 commits)
  MAINTAINERS: add the iommu list for swiotlb and xen-swiotlb
  arm64: use swiotlb_alloc and swiotlb_free
  arm64: replace ZONE_DMA with ZONE_DMA32
  mips: use swiotlb_{alloc,free}
  mips/netlogic: remove swiotlb support
  tile: use generic swiotlb_ops
  tile: replace ZONE_DMA with ZONE_DMA32
  unicore32: use generic swiotlb_ops
  ia64: remove an ifdef around the content of pci-dma.c
  ia64: clean up swiotlb support
  ia64: use generic swiotlb_ops
  ia64: replace ZONE_DMA with ZONE_DMA32
  swiotlb: remove various exports
  swiotlb: refactor coherent buffer allocation
  swiotlb: refactor coherent buffer freeing
  swiotlb: wire up ->dma_supported in swiotlb_dma_ops
  swiotlb: add common swiotlb_map_ops
  swiotlb: rename swiotlb_free to swiotlb_exit
  x86: rename swiotlb_dma_ops
  powerpc: rename swiotlb_dma_ops
  ...
2018-01-31 11:32:27 -08:00
Christoph Hellwig
002e67454f dma-direct: rename dma_noop to dma_direct
The trivial direct mapping implementation already does a virtual to
physical translation which isn't strictly a noop, and will soon learn
to do non-direct but linear physical to dma translations through the
device offset and a few small tricks.  Rename it to a better fitting
name.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
2018-01-15 09:35:06 +01:00
Bart Van Assche
e80a0af475 lib/scatterlist: Introduce sgl_alloc() and sgl_free()
Many kernel drivers contain code that allocates and frees both a
scatterlist and the pages that populate that scatterlist.
Introduce functions in lib/scatterlist.c that perform these tasks
instead of duplicating this functionality in multiple drivers.
Only include these functions in the build if CONFIG_SGL_ALLOC=y
to avoid that the kernel size increases if this functionality is
not used.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-01-06 09:18:00 -07:00
Linus Torvalds
14b661ebb6 Merge tag 'for-linus-20171120' of git://git.infradead.org/linux-mtd
Pull MTD updates from Richard Weinberger:
 "General changes:
   -  Unconfuse get_unmapped_area and point/unpoint driver methods
   -  New partition parser: sharpslpart
   -  Kill GENERIC_IO
   -  Various fixes

  NAND changes:
   -  Add a flag to mark NANDs that require 3 address cycles to encode a
      page address
   -  Set a default ECC/free layout when NAND_ECC_NONE is requested
   -  Fix a bug in panic_nand_write()
   -  Another batch of cleanups for the denali driver
   -  Fix PM support in the atmel driver
   -  Remove support for platform data in the omap driver
   -  Fix subpage write in the omap driver
   -  Fix irq handling in the mtk driver
   -  Change link order of mtk_ecc and mtk_nand drivers to speed up boot
      time
   -  Change log level of ECC error messages in the mxc driver
   -  Patch the pxa3xx driver to support Armada 8k platforms
   -  Add BAM DMA support to the qcom driver
   -  Convert gpio-nand to the GPIO desc API
   -  Fix ECC handling in the mt29f driver

  SPI-NOR changes:
   -  Introduce system power management support
   -  New mechanism to select the proper .quad_enable() hook by JEDEC
      ID, when needed, instead of only by manufacturer ID
   -  Add support to new memory parts from Gigadevice, Winbond, Macronix
      and Everspin
   -  Maintainance for Cadence, Intel, Mediatek and STM32 drivers"

*  tag 'for-linus-20171120' of git://git.infradead.org/linux-mtd: (85 commits)
  mtd: Avoid probe failures when mtd->dbg.dfs_dir is invalid
  mtd: sharpslpart: Add sharpslpart partition parser
  mtd: Add sanity checks in mtd_write/read_oob()
  mtd: remove the get_unmapped_area method
  mtd: implement mtd_get_unmapped_area() using the point method
  mtd: chips/map_rom.c: implement point and unpoint methods
  mtd: chips/map_ram.c: implement point and unpoint methods
  mtd: mtdram: properly handle the phys argument in the point method
  mtd: mtdswap: fix spelling mistake: 'TRESHOLD' -> 'THRESHOLD'
  mtd: slram: use memremap() instead of ioremap()
  kconfig: kill off GENERIC_IO option
  mtd: Fix C++ comment in include/linux/mtd/mtd.h
  mtd: constify mtd_partition
  mtd: plat-ram: Replace manual resource management by devm
  mtd: nand: Fix writing mtdoops to nand flash.
  mtd: intel-spi: Add Intel Lewisburg PCH SPI super SKU PCI ID
  mtd: nand: mtk: fix infinite ECC decode IRQ issue
  mtd: spi-nor: Add support for mr25h128
  mtd: nand: mtk: change the compile sequence of mtk_nand.o and mtk_ecc.o
  mtd: spi-nor: enable 4B opcodes for mx66l51235l
  ...
2017-11-22 20:46:06 -10:00
Geert Uytterhoeven
d6b28e0996 lib: add module support to string tests
Extract the string test code into its own source file, to allow
compiling it either to a loadable module, or built into the kernel.

Fixes: 03270c13c5 ("lib/string.c: add testcases for memset16/32/64")
Link: http://lkml.kernel.org/r/1505397744-3387-1-git-send-email-geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-17 16:10:01 -08:00
Rob Herring
9de8da4774 kconfig: kill off GENERIC_IO option
The GENERIC_IO option is set for every architecture except tile and score
as those define NO_IOMEM. The option only controls visibility of
CONFIG_MTD which doesn't appear to be necessary for any reason, so let's
just remove GENERIC_IO.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: user-mode-linux-user@lists.sourceforge.net
Cc: linux-mtd@lists.infradead.org
Acked-by: Richard Weinberger <richard@nod.at>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2017-11-13 21:39:15 +01:00
Palmer Dabbelt
b35cd9884f lib: Add shared copies of some GCC library routines
Many ports (m32r, microblaze, mips, parisc, score, and sparc) use
functionally identical copies of various GCC library routine files,
which came up as we were submitting the RISC-V port (which also uses
some of these).

This patch adds a new copy of these library routine files, which are
functionally identical to the various other copies.  These are
availiable via Kconfig as CONFIG_GENERIC_$ROUTINE, which currently isn't
used anywhere.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
2017-09-25 15:50:57 -07:00
Linus Torvalds
e7cdb60fd2 Merge branch 'zstd-minimal' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull zstd support from Chris Mason:
 "Nick Terrell's patch series to add zstd support to the kernel has been
  floating around for a while. After talking with Dave Sterba, Herbert
  and Phillip, we decided to send the whole thing in as one pull
  request.

  zstd is a big win in speed over zlib and in compression ratio over
  lzo, and the compression team here at FB has gotten great results
  using it in production. Nick will continue to update the kernel side
  with new improvements from the open source zstd userland code.

  Nick has a number of benchmarks for the main zstd code in his lib/zstd
  commit:

      I ran the benchmarks on a Ubuntu 14.04 VM with 2 cores and 4 GiB
      of RAM. The VM is running on a MacBook Pro with a 3.1 GHz Intel
      Core i7 processor, 16 GB of RAM, and a SSD. I benchmarked using
      `silesia.tar` [3], which is 211,988,480 B large. Run the following
      commands for the benchmark:

        sudo modprobe zstd_compress_test
        sudo mknod zstd_compress_test c 245 0
        sudo cp silesia.tar zstd_compress_test

      The time is reported by the time of the userland `cp`.
      The MB/s is computed with

        1,536,217,008 B / time(buffer size, hash)

      which includes the time to copy from userland.
      The Adjusted MB/s is computed with

        1,536,217,088 B / (time(buffer size, hash) - time(buffer size, none)).

      The memory reported is the amount of memory the compressor
      requests.

        | Method   | Size (B) | Time (s) | Ratio | MB/s    | Adj MB/s | Mem (MB) |
        |----------|----------|----------|-------|---------|----------|----------|
        | none     | 11988480 |    0.100 |     1 | 2119.88 |        - |        - |
        | zstd -1  | 73645762 |    1.044 | 2.878 |  203.05 |   224.56 |     1.23 |
        | zstd -3  | 66988878 |    1.761 | 3.165 |  120.38 |   127.63 |     2.47 |
        | zstd -5  | 65001259 |    2.563 | 3.261 |   82.71 |    86.07 |     2.86 |
        | zstd -10 | 60165346 |   13.242 | 3.523 |   16.01 |    16.13 |    13.22 |
        | zstd -15 | 58009756 |   47.601 | 3.654 |    4.45 |     4.46 |    21.61 |
        | zstd -19 | 54014593 |  102.835 | 3.925 |    2.06 |     2.06 |    60.15 |
        | zlib -1  | 77260026 |    2.895 | 2.744 |   73.23 |    75.85 |     0.27 |
        | zlib -3  | 72972206 |    4.116 | 2.905 |   51.50 |    52.79 |     0.27 |
        | zlib -6  | 68190360 |    9.633 | 3.109 |   22.01 |    22.24 |     0.27 |
        | zlib -9  | 67613382 |   22.554 | 3.135 |    9.40 |     9.44 |     0.27 |

      I benchmarked zstd decompression using the same method on the same
      machine. The benchmark file is located in the upstream zstd repo
      under `contrib/linux-kernel/zstd_decompress_test.c` [4]. The
      memory reported is the amount of memory required to decompress
      data compressed with the given compression level. If you know the
      maximum size of your input, you can reduce the memory usage of
      decompression irrespective of the compression level.

        | Method   | Time (s) | MB/s    | Adjusted MB/s | Memory (MB) |
        |----------|----------|---------|---------------|-------------|
        | none     |    0.025 | 8479.54 |             - |           - |
        | zstd -1  |    0.358 |  592.15 |        636.60 |        0.84 |
        | zstd -3  |    0.396 |  535.32 |        571.40 |        1.46 |
        | zstd -5  |    0.396 |  535.32 |        571.40 |        1.46 |
        | zstd -10 |    0.374 |  566.81 |        607.42 |        2.51 |
        | zstd -15 |    0.379 |  559.34 |        598.84 |        4.61 |
        | zstd -19 |    0.412 |  514.54 |        547.77 |        8.80 |
        | zlib -1  |    0.940 |  225.52 |        231.68 |        0.04 |
        | zlib -3  |    0.883 |  240.08 |        247.07 |        0.04 |
        | zlib -6  |    0.844 |  251.17 |        258.84 |        0.04 |
        | zlib -9  |    0.837 |  253.27 |        287.64 |        0.04 |

  I ran a long series of tests and benchmarks on the btrfs side and the
  gains are very similar to the core benchmarks Nick ran"

* 'zstd-minimal' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  squashfs: Add zstd support
  btrfs: Add zstd support
  lib: Add zstd modules
  lib: Add xxhash module
2017-09-14 17:30:49 -07:00
Linus Torvalds
89fd915c40 Merge tag 'libnvdimm-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm from Dan Williams:
 "A rework of media error handling in the BTT driver and other updates.
  It has appeared in a few -next releases and collected some late-
  breaking build-error and warning fixups as a result.

  Summary:

   - Media error handling support in the Block Translation Table (BTT)
     driver is reworked to address sleeping-while-atomic locking and
     memory-allocation-context conflicts.

   - The dax_device lookup overhead for xfs and ext4 is moved out of the
     iomap hot-path to a mount-time lookup.

   - A new 'ecc_unit_size' sysfs attribute is added to advertise the
     read-modify-write boundary property of a persistent memory range.

   - Preparatory fix-ups for arm and powerpc pmem support are included
     along with other miscellaneous fixes"

* tag 'libnvdimm-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (26 commits)
  libnvdimm, btt: fix format string warnings
  libnvdimm, btt: clean up warning and error messages
  ext4: fix null pointer dereference on sbi
  libnvdimm, nfit: move the check on nd_reserved2 to the endpoint
  dax: fix FS_DAX=n BLOCK=y compilation
  libnvdimm: fix integer overflow static analysis warning
  libnvdimm, nd_blk: remove mmio_flush_range()
  libnvdimm, btt: rework error clearing
  libnvdimm: fix potential deadlock while clearing errors
  libnvdimm, btt: cache sector_size in arena_info
  libnvdimm, btt: ensure that flags were also unchanged during a map_read
  libnvdimm, btt: refactor map entry operations with macros
  libnvdimm, btt: fix a missed NVDIMM_IO_ATOMIC case in the write path
  libnvdimm, nfit: export an 'ecc_unit_size' sysfs attribute
  ext4: perform dax_device lookup at mount
  ext2: perform dax_device lookup at mount
  xfs: perform dax_device lookup at mount
  dax: introduce a fs_dax_get_by_bdev() helper
  libnvdimm, btt: check memory allocation failure
  libnvdimm, label: fix index block size calculation
  ...
2017-09-11 13:10:57 -07:00
Matthew Wilcox
03270c13c5 lib/string.c: add testcases for memset16/32/64
[akpm@linux-foundation.org: minor tweaks]
Link: http://lkml.kernel.org/r/20170720184539.31609-3-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: David Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-08 18:26:48 -07:00
Robin Murphy
5deb67f77a libnvdimm, nd_blk: remove mmio_flush_range()
mmio_flush_range() suffers from a lack of clearly-defined semantics,
and is somewhat ambiguous to port to other architectures where the
scope of the writeback implied by "flush" and ordering might matter,
but MMIO would tend to imply non-cacheable anyway. Per the rationale
in 67a3e8fe90 ("nd_blk: change aperture mapping from WC to WB"), the
only existing use is actually to invalidate clean cache lines for
ARCH_MEMREMAP_PMEM type mappings *without* writeback. Since the recent
cleanup of the pmem API, that also now happens to be the exact purpose
of arch_invalidate_pmem(), which would be a far more well-defined tool
for the job.

Rather than risk potentially inconsistent implementations of
mmio_flush_range() for the sake of one callsite, streamline things by
removing it entirely and instead move the ARCH_MEMREMAP_PMEM related
definitions up to the libnvdimm level, so they can be shared by NFIT
as well. This allows NFIT to be enabled for arm64.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-08-31 15:05:10 -07:00
Nick Terrell
73f3d1b48f lib: Add zstd modules
Add zstd compression and decompression kernel modules.
zstd offers a wide varity of compression speed and quality trade-offs.
It can compress at speeds approaching lz4, and quality approaching lzma.
zstd decompressions at speeds more than twice as fast as zlib, and
decompression speed remains roughly the same across all compression levels.

The code was ported from the upstream zstd source repository. The
`linux/zstd.h` header was modified to match linux kernel style.
The cross-platform and allocation code was stripped out. Instead zstd
requires the caller to pass a preallocated workspace. The source files
were clang-formatted [1] to match the Linux Kernel style as much as
possible. Otherwise, the code was unmodified. We would like to avoid
as much further manual modification to the source code as possible, so it
will be easier to keep the kernel zstd up to date.

I benchmarked zstd compression as a special character device. I ran zstd
and zlib compression at several levels, as well as performing no
compression, which measure the time spent copying the data to kernel space.
Data is passed to the compresser 4096 B at a time. The benchmark file is
located in the upstream zstd source repository under
`contrib/linux-kernel/zstd_compress_test.c` [2].

I ran the benchmarks on a Ubuntu 14.04 VM with 2 cores and 4 GiB of RAM.
The VM is running on a MacBook Pro with a 3.1 GHz Intel Core i7 processor,
16 GB of RAM, and a SSD. I benchmarked using `silesia.tar` [3], which is
211,988,480 B large. Run the following commands for the benchmark:

    sudo modprobe zstd_compress_test
    sudo mknod zstd_compress_test c 245 0
    sudo cp silesia.tar zstd_compress_test

The time is reported by the time of the userland `cp`.
The MB/s is computed with

    1,536,217,008 B / time(buffer size, hash)

which includes the time to copy from userland.
The Adjusted MB/s is computed with

    1,536,217,088 B / (time(buffer size, hash) - time(buffer size, none)).

The memory reported is the amount of memory the compressor requests.

| Method   | Size (B) | Time (s) | Ratio | MB/s    | Adj MB/s | Mem (MB) |
|----------|----------|----------|-------|---------|----------|----------|
| none     | 11988480 |    0.100 |     1 | 2119.88 |        - |        - |
| zstd -1  | 73645762 |    1.044 | 2.878 |  203.05 |   224.56 |     1.23 |
| zstd -3  | 66988878 |    1.761 | 3.165 |  120.38 |   127.63 |     2.47 |
| zstd -5  | 65001259 |    2.563 | 3.261 |   82.71 |    86.07 |     2.86 |
| zstd -10 | 60165346 |   13.242 | 3.523 |   16.01 |    16.13 |    13.22 |
| zstd -15 | 58009756 |   47.601 | 3.654 |    4.45 |     4.46 |    21.61 |
| zstd -19 | 54014593 |  102.835 | 3.925 |    2.06 |     2.06 |    60.15 |
| zlib -1  | 77260026 |    2.895 | 2.744 |   73.23 |    75.85 |     0.27 |
| zlib -3  | 72972206 |    4.116 | 2.905 |   51.50 |    52.79 |     0.27 |
| zlib -6  | 68190360 |    9.633 | 3.109 |   22.01 |    22.24 |     0.27 |
| zlib -9  | 67613382 |   22.554 | 3.135 |    9.40 |     9.44 |     0.27 |

I benchmarked zstd decompression using the same method on the same machine.
The benchmark file is located in the upstream zstd repo under
`contrib/linux-kernel/zstd_decompress_test.c` [4]. The memory reported is
the amount of memory required to decompress data compressed with the given
compression level. If you know the maximum size of your input, you can
reduce the memory usage of decompression irrespective of the compression
level.

| Method   | Time (s) | MB/s    | Adjusted MB/s | Memory (MB) |
|----------|----------|---------|---------------|-------------|
| none     |    0.025 | 8479.54 |             - |           - |
| zstd -1  |    0.358 |  592.15 |        636.60 |        0.84 |
| zstd -3  |    0.396 |  535.32 |        571.40 |        1.46 |
| zstd -5  |    0.396 |  535.32 |        571.40 |        1.46 |
| zstd -10 |    0.374 |  566.81 |        607.42 |        2.51 |
| zstd -15 |    0.379 |  559.34 |        598.84 |        4.61 |
| zstd -19 |    0.412 |  514.54 |        547.77 |        8.80 |
| zlib -1  |    0.940 |  225.52 |        231.68 |        0.04 |
| zlib -3  |    0.883 |  240.08 |        247.07 |        0.04 |
| zlib -6  |    0.844 |  251.17 |        258.84 |        0.04 |
| zlib -9  |    0.837 |  253.27 |        287.64 |        0.04 |

Tested in userland using the test-suite in the zstd repo under
`contrib/linux-kernel/test/UserlandTest.cpp` [5] by mocking the kernel
functions. Fuzz tested using libfuzzer [6] with the fuzz harnesses under
`contrib/linux-kernel/test/{RoundTripCrash.c,DecompressCrash.c}` [7] [8]
with ASAN, UBSAN, and MSAN. Additionaly, it was tested while testing the
BtrFS and SquashFS patches coming next.

[1] https://clang.llvm.org/docs/ClangFormat.html
[2] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/zstd_compress_test.c
[3] http://sun.aei.polsl.pl/~sdeor/index.php?page=silesia
[4] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/zstd_decompress_test.c
[5] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/test/UserlandTest.cpp
[6] http://llvm.org/docs/LibFuzzer.html
[7] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/test/RoundTripCrash.c
[8] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/test/DecompressCrash.c

zstd source repository: https://github.com/facebook/zstd

Signed-off-by: Nick Terrell <terrelln@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
2017-08-15 09:02:08 -07:00
Nick Terrell
5d2405227a lib: Add xxhash module
Adds xxhash kernel module with xxh32 and xxh64 hashes. xxhash is an
extremely fast non-cryptographic hash algorithm for checksumming.
The zstd compression and decompression modules added in the next patch
require xxhash. I extracted it out from zstd since it is useful on its
own. I copied the code from the upstream XXHash source repository and
translated it into kernel style. I ran benchmarks and tests in the kernel
and tests in userland.

I benchmarked xxhash as a special character device. I ran in four modes,
no-op, xxh32, xxh64, and crc32. The no-op mode simply copies the data to
kernel space and ignores it. The xxh32, xxh64, and crc32 modes compute
hashes on the copied data. I also ran it with four different buffer sizes.
The benchmark file is located in the upstream zstd source repository under
`contrib/linux-kernel/xxhash_test.c` [1].

I ran the benchmarks on a Ubuntu 14.04 VM with 2 cores and 4 GiB of RAM.
The VM is running on a MacBook Pro with a 3.1 GHz Intel Core i7 processor,
16 GB of RAM, and a SSD. I benchmarked using the file `filesystem.squashfs`
from `ubuntu-16.10-desktop-amd64.iso`, which is 1,536,217,088 B large.
Run the following commands for the benchmark:

    modprobe xxhash_test
    mknod xxhash_test c 245 0
    time cp filesystem.squashfs xxhash_test

The time is reported by the time of the userland `cp`.
The GB/s is computed with

    1,536,217,008 B / time(buffer size, hash)

which includes the time to copy from userland.
The Normalized GB/s is computed with

    1,536,217,088 B / (time(buffer size, hash) - time(buffer size, none)).

| Buffer Size (B) | Hash  | Time (s) | GB/s | Adjusted GB/s |
|-----------------|-------|----------|------|---------------|
|            1024 | none  |    0.408 | 3.77 |             - |
|            1024 | xxh32 |    0.649 | 2.37 |          6.37 |
|            1024 | xxh64 |    0.542 | 2.83 |         11.46 |
|            1024 | crc32 |    1.290 | 1.19 |          1.74 |
|            4096 | none  |    0.380 | 4.04 |             - |
|            4096 | xxh32 |    0.645 | 2.38 |          5.79 |
|            4096 | xxh64 |    0.500 | 3.07 |         12.80 |
|            4096 | crc32 |    1.168 | 1.32 |          1.95 |
|            8192 | none  |    0.351 | 4.38 |             - |
|            8192 | xxh32 |    0.614 | 2.50 |          5.84 |
|            8192 | xxh64 |    0.464 | 3.31 |         13.60 |
|            8192 | crc32 |    1.163 | 1.32 |          1.89 |
|           16384 | none  |    0.346 | 4.43 |             - |
|           16384 | xxh32 |    0.590 | 2.60 |          6.30 |
|           16384 | xxh64 |    0.466 | 3.30 |         12.80 |
|           16384 | crc32 |    1.183 | 1.30 |          1.84 |

Tested in userland using the test-suite in the zstd repo under
`contrib/linux-kernel/test/XXHashUserlandTest.cpp` [2] by mocking the
kernel functions. A line in each branch of every function in `xxhash.c`
was commented out to ensure that the test-suite fails. Additionally
tested while testing zstd and with SMHasher [3].

[1] https://phabricator.intern.facebook.com/P57526246
[2] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/test/XXHashUserlandTest.cpp
[3] https://github.com/aappleby/smhasher

zstd source repository: https://github.com/facebook/zstd
XXHash source repository: https://github.com/cyan4973/xxhash

Signed-off-by: Nick Terrell <terrelln@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
2017-08-15 09:02:07 -07:00
Linus Torvalds
b6ffe9ba46 Merge tag 'libnvdimm-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
 "libnvdimm updates for the latest ACPI and UEFI specifications. This
  pull request also includes new 'struct dax_operations' enabling to
  undo the abuse of copy_user_nocache() for copy operations to pmem.

  The dax work originally missed 4.12 to address concerns raised by Al.

  Summary:

   - Introduce the _flushcache() family of memory copy helpers and use
     them for persistent memory write operations on x86. The
     _flushcache() semantic indicates that the cache is either bypassed
     for the copy operation (movnt) or any lines dirtied by the copy
     operation are written back (clwb, clflushopt, or clflush).

   - Extend dax_operations with ->copy_from_iter() and ->flush()
     operations. These operations and other infrastructure updates allow
     all persistent memory specific dax functionality to be pushed into
     libnvdimm and the pmem driver directly. It also allows dax-specific
     sysfs attributes to be linked to a host device, for example:
     /sys/block/pmem0/dax/write_cache

   - Add support for the new NVDIMM platform/firmware mechanisms
     introduced in ACPI 6.2 and UEFI 2.7. This support includes the v1.2
     namespace label format, extensions to the address-range-scrub
     command set, new error injection commands, and a new BTT
     (block-translation-table) layout. These updates support inter-OS
     and pre-OS compatibility.

   - Fix a longstanding memory corruption bug in nfit_test.

   - Make the pmem and nvdimm-region 'badblocks' sysfs files poll(2)
     capable.

   - Miscellaneous fixes and small updates across libnvdimm and the nfit
     driver.

  Acknowledgements that came after the branch was pushed: commit
  6aa734a2f3 ("libnvdimm, region, pmem: fix 'badblocks'
  sysfs_get_dirent() reference lifetime") was reviewed by Toshi Kani
  <toshi.kani@hpe.com>"

* tag 'libnvdimm-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (42 commits)
  libnvdimm, namespace: record 'lbasize' for pmem namespaces
  acpi/nfit: Issue Start ARS to retrieve existing records
  libnvdimm: New ACPI 6.2 DSM functions
  acpi, nfit: Show bus_dsm_mask in sysfs
  libnvdimm, acpi, nfit: Add bus level dsm mask for pass thru.
  acpi, nfit: Enable DSM pass thru for root functions.
  libnvdimm: passthru functions clear to send
  libnvdimm, btt: convert some info messages to warn/err
  libnvdimm, region, pmem: fix 'badblocks' sysfs_get_dirent() reference lifetime
  libnvdimm: fix the clear-error check in nsio_rw_bytes
  libnvdimm, btt: fix btt_rw_page not returning errors
  acpi, nfit: quiet invalid block-aperture-region warnings
  libnvdimm, btt: BTT updates for UEFI 2.7 format
  acpi, nfit: constify *_attribute_group
  libnvdimm, pmem: disable dax flushing when pmem is fronting a volatile region
  libnvdimm, pmem, dax: export a cache control attribute
  dax: convert to bitmask for flags
  dax: remove default copy_from_iter fallback
  libnvdimm, nfit: enable support for volatile ranges
  libnvdimm, pmem: fix persistence warning
  ...
2017-07-07 09:44:06 -07:00
Dan Williams
0aed55af88 x86, uaccess: introduce copy_from_iter_flushcache for pmem / cache-bypass operations
The pmem driver has a need to transfer data with a persistent memory
destination and be able to rely on the fact that the destination writes are not
cached. It is sufficient for the writes to be flushed to a cpu-store-buffer
(non-temporal / "movnt" in x86 terms), as we expect userspace to call fsync()
to ensure data-writes have reached a power-fail-safe zone in the platform. The
fsync() triggers a REQ_FUA or REQ_FLUSH to the pmem driver which will turn
around and fence previous writes with an "sfence".

Implement a __copy_from_user_inatomic_flushcache, memcpy_page_flushcache, and
memcpy_flushcache, that guarantee that the destination buffer is not dirty in
the cpu cache on completion. The new copy_from_iter_flushcache and sub-routines
will be used to replace the "pmem api" (include/linux/pmem.h +
arch/x86/include/asm/pmem.h). The availability of copy_from_iter_flushcache()
and memcpy_flushcache() are gated by the CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
config symbol, and fallback to copy_from_iter_nocache() and plain memcpy()
otherwise.

This is meant to satisfy the concern from Linus that if a driver wants to do
something beyond the normal nocache semantics it should be something private to
that driver [1], and Al's concern that anything uaccess related belongs with
the rest of the uaccess code [2].

The first consumer of this interface is a new 'copy_from_iter' dax operation so
that pmem can inject cache maintenance operations without imposing this
overhead on other dax-capable drivers.

[1]: https://lists.01.org/pipermail/linux-nvdimm/2017-January/008364.html
[2]: https://lists.01.org/pipermail/linux-nvdimm/2017-April/009942.html

Cc: <x86@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Toshi Kani <toshi.kani@hpe.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-09 09:09:56 -07:00
Jeremy Kerr
0cbaa44841 lib: Add crc4 module
Add a little helper for crc4 calculations. This works 4-bits-at-a-time,
using a simple table approach.

We will need this in the FSI core code, as well as any master
implementations that need to calculate CRCs in software.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Chris Bostic <cbostic@linux.vnet.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-09 11:52:07 +02:00
Linus Torvalds
c2eca00fec Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Don't save TIPC header values before the header has been validated,
    from Jon Paul Maloy.

 2) Fix memory leak in RDS, from Zhu Yanjun.

 3) We miss to initialize the UID in the flow key in some paths, from
    Julian Anastasov.

 4) Fix latent TOS masking bug in the routing cache removal from years
    ago, also from Julian.

 5) We forget to set the sockaddr port in sctp_copy_local_addr_list(),
    fix from Xin Long.

 6) Missing module ref count drop in packet scheduler actions, from
    Roman Mashak.

 7) Fix RCU annotations in rht_bucket_nested, from Herbert Xu.

 8) Fix use after free which happens because L2TP's ipv4 support returns
    non-zero values from it's backlog_rcv function which ipv4 interprets
    as protocol values. Fix from Paul Hüber.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (35 commits)
  qed: Don't use attention PTT for configuring BW
  qed: Fix race with multiple VFs
  l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv
  xfrm: provide correct dst in xfrm_neigh_lookup
  rhashtable: Fix RCU dereference annotation in rht_bucket_nested
  rhashtable: Fix use before NULL check in bucket_table_free
  net sched actions: do not overwrite status of action creation.
  rxrpc: Kernel calls get stuck in recvmsg
  net sched actions: decrement module reference count after table flush.
  lib: Allow compile-testing of parman
  ipv6: check sk sk_type and protocol early in ip_mroute_set/getsockopt
  sctp: set sin_port for addr param when checking duplicate address
  net/mlx4_en: fix overflow in mlx4_en_init_timestamp()
  netfilter: nft_set_bitmap: incorrect bitmap size
  net: s2io: fix typo argumnet argument
  net: vxge: fix typo argumnet argument
  netfilter: nf_ct_expect: Change __nf_ct_expect_check() return value.
  ipv4: mask tos for input route
  ipv4: add missing initialization for flowi4_uid
  lib: fix spelling mistake: "actualy" -> "actually"
  ...
2017-02-28 10:00:39 -08:00
Geert Uytterhoeven
9d25af69b3 lib: Allow compile-testing of parman
This allows to enable and run the accompanying test (test_parman)
without dependencies on other users of parman.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-26 21:26:47 -05:00
Linus Torvalds
ac1820fb28 Merge tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma DMA mapping updates from Doug Ledford:
 "Drop IB DMA mapping code and use core DMA code instead.

  Bart Van Assche noted that the ib DMA mapping code was significantly
  similar enough to the core DMA mapping code that with a few changes it
  was possible to remove the IB DMA mapping code entirely and switch the
  RDMA stack to use the core DMA mapping code.

  This resulted in a nice set of cleanups, but touched the entire tree
  and has been kept separate for that reason."

* tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits)
  IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it
  IB/core: Remove ib_device.dma_device
  nvme-rdma: Switch from dma_device to dev.parent
  RDS: net: Switch from dma_device to dev.parent
  IB/srpt: Modify a debug statement
  IB/srp: Switch from dma_device to dev.parent
  IB/iser: Switch from dma_device to dev.parent
  IB/IPoIB: Switch from dma_device to dev.parent
  IB/rxe: Switch from dma_device to dev.parent
  IB/vmw_pvrdma: Switch from dma_device to dev.parent
  IB/usnic: Switch from dma_device to dev.parent
  IB/qib: Switch from dma_device to dev.parent
  IB/qedr: Switch from dma_device to dev.parent
  IB/ocrdma: Switch from dma_device to dev.parent
  IB/nes: Remove a superfluous assignment statement
  IB/mthca: Switch from dma_device to dev.parent
  IB/mlx5: Switch from dma_device to dev.parent
  IB/mlx4: Switch from dma_device to dev.parent
  IB/i40iw: Remove a superfluous assignment statement
  IB/hns: Switch from dma_device to dev.parent
  ...
2017-02-25 13:45:43 -08:00
Geert Uytterhoeven
ba95b045e9 lib: add module support to glob tests
Extract the glob test code into its own source file, to allow to compile
it either to a loadable module, or builtin into the kernel.

Link: http://lkml.kernel.org/r/1483470276-10517-2-git-send-email-geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24 17:46:57 -08:00
Geert Uytterhoeven
5fb7f87408 lib: add module support to crc32 tests
Extract the crc32 test code into its own source file, to allow to
compile it either to a loadable module, or builtin into the kernel.

Link: http://lkml.kernel.org/r/1483470276-10517-1-git-send-email-geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24 17:46:57 -08:00
Linus Torvalds
ef96152e6a Merge tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
 "This is the main drm pull request for v4.11.

  Nothing too major, the tinydrm and mmu-less support should make
  writing smaller drivers easier for some of the simpler platforms, and
  there are a bunch of documentation updates.

  Intel grew displayport MST audio support which is hopefully useful to
  people, and FBC is on by default for GEN9+ (so people know where to
  look for regressions). AMDGPU has a lot of fixes that would like new
  firmware files installed for some GPUs.

  Other than that it's pretty scattered all over.

  I may have a follow up pull request as I know BenH has a bunch of AST
  rework and fixes and I'd like to get those in once they've been tested
  by AST, and I've got at least one pull request I'm just trying to get
  the author to fix up.

  Core:
   - drm_mm reworked
   - Connector list locking and iterators
   - Documentation updates
   - Format handling rework
   - MMU-less support for fbdev helpers
   - drm_crtc_from_index helper
   - Core CRC API
   - Remove drm_framebuffer_unregister_private
   - Debugfs cleanup
   - EDID/Infoframe fixes
   - Release callback
   - Tinydrm support (smaller drivers for simple hw)

  panel:
   - Add support for some new simple panels

  i915:
   - FBC by default for gen9+
   - Shared dpll cleanups and docs
   - GEN8 powerdomain cleanup
   - DMC support on GLK
   - DP MST audio support
   - HuC loading support
   - GVT init ordering fixes
   - GVT IOMMU workaround fix

  amdgpu/radeon:
   - Power/clockgating improvements
   - Preliminary SR-IOV support
   - TTM buffer priority and eviction fixes
   - SI DPM quirks removed due to firmware fixes
   - Powerplay improvements
   - VCE/UVD powergating fixes
   - Cleanup SI GFX code to match CI/VI
   - Support for > 2 displays on 3/5 crtc asics
   - SI headless fixes

  nouveau:
   - Rework securre boot code in prep for GP10x secure boot
   - Channel recovery improvements
   - Initial power budget code
   - MMU rework preperation

  vmwgfx:
   - Bunch of fixes and cleanups

  exynos:
   - Runtime PM support for MIC driver
   - Cleanups to use atomic helpers
   - UHD Support for TM2/TM2E boards
   - Trigger mode fix for Rinato board

  etnaviv:
   - Shader performance fix
   - Command stream validator fixes
   - Command buffer suballocator

  rockchip:
   - CDN DisplayPort support
   - IOMMU support for arm64 platform

  imx-drm:
   - Fix i.MX5 TV encoder probing
   - Remove lower fb size limits

  msm:
   - Support for HW cursor on MDP5 devices
   - DSI encoder cleanup
   - GPU DT bindings cleanup

  sti:
   - stih410 cleanups
   - Create fbdev at binding
   - HQVDP fixes
   - Remove stih416 chip functionality
   - DVI/HDMI mode selection fixes
   - FPS statistic reporting

  omapdrm:
   - IRQ code cleanup

  dwi-hdmi bridge:
   - Cleanups and fixes

  adv-bridge:
   - Updates for nexus

  sii8520 bridge:
   - Add interlace mode support
   - Rework HDMI and lots of fixes

  qxl:
   - probing/teardown cleanups

  ZTE drm:
   - HDMI audio via SPDIF interface
   - Video Layer overlay plane support
   - Add TV encoder output device

  atmel-hlcdc:
   - Rework fbdev creation logic

  tegra:
   - OF node fix

  fsl-dcu:
   - Minor fixes

  mali-dp:
   - Assorted fixes

  sunxi:
   - Minor fix"

[ This was the "fixed" pull, that still had build warnings due to people
  not even having build tested the result. I'm not a happy camper

  I've fixed the things I noticed up in this merge.      - Linus ]

* tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux: (1177 commits)
  lib/Kconfig: make PRIME_NUMBERS not user selectable
  drm/tinydrm: helpers: Properly fix backlight dependency
  drm/tinydrm: mipi-dbi: Fix field width specifier warning
  drm/tinydrm: mipi-dbi: Silence: ‘cmd’ may be used uninitialized
  drm/sti: fix build warnings in sti_drv.c and sti_vtg.c files
  drm/amd/powerplay: fix PSI feature on Polars12
  drm/amdgpu: refuse to reserve io mem for split VRAM buffers
  drm/ttm: fix use-after-free races in vm fault handling
  drm/tinydrm: Add support for Multi-Inno MI0283QT display
  dt-bindings: Add Multi-Inno MI0283QT binding
  dt-bindings: display/panel: Add common rotation property
  of: Add vendor prefix for Multi-Inno
  drm/tinydrm: Add MIPI DBI support
  drm/tinydrm: Add helper functions
  drm: Add DRM support for tiny LCD displays
  drm/amd/amdgpu: post card if there is real hw resetting performed
  drm/nouveau/tmr: provide backtrace when a timeout is hit
  drm/nouveau/pci/g92: Fix rearm
  drm/nouveau/drm/therm/fan: add a fallback if no fan control is specified in the vbios
  drm/nouveau/hwmon: expose power_max and power_crit
  ..
2017-02-23 18:58:18 -08:00
Dave Airlie
64a577196d lib/Kconfig: make PRIME_NUMBERS not user selectable.
Linus doesn't like it user selectable, so kill it until
someone needs it for something else.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-24 12:11:21 +10:00