Pull x86 stack unwinding fix from Thomas Gleixner:
 "A single bugfix for the ORC unwinder to ensure that the error flag
  which tells the unwinding code whether a stack trace can be trusted or
  not is always set correctly.

  This was messed up by a couple of changes in the recent past"

* tag 'objtool-urgent-2020-05-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/unwind/orc: Fix error handling in __unwind_start()

Pull x86 fix from Borislav Petkov:
 "A single fix for early boot crashes of kernels built with gcc10 and
  stack protector enabled"

* tag 'x86_urgent_for_v5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Fix early boot crash on gcc-10, third try

Pull cifs fixes from Steve French:
 "Three small cifs/smb3 fixes, one for stable"

* tag '5.7-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix leaked reference on requeued write
  cifs: Fix null pointer check in cifs_read
  CIFS: Spelling s/EACCESS/EACCES/

Pull kvm fixes from Paolo Bonzini:
 "A new testcase for guest debugging (gdbstub) that exposed a bunch of
  bugs, mostly for AMD processors. And a few other x86 fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Fix off-by-one error in kvm_vcpu_ioctl_x86_setup_mce
  KVM: x86: Fix pkru save/restore when guest CR4.PKE=0, move it to x86.c
  KVM: SVM: Disable AVIC before setting V_IRQ
  KVM: Introduce kvm_make_all_cpus_request_except()
  KVM: VMX: pass correct DR6 for GD userspace exit
  KVM: x86, SVM: isolate vcpu->arch.dr6 from vmcb->save.dr6
  KVM: SVM: keep DR6 synchronized with vcpu->arch.dr6
  KVM: nSVM: trap #DB and #BP to userspace if guest debugging is on
  KVM: selftests: Add KVM_SET_GUEST_DEBUG test
  KVM: X86: Fix single-step with KVM_SET_GUEST_DEBUG
  KVM: X86: Set RTM for DB_VECTOR too for KVM_EXIT_DEBUG
  KVM: x86: fix DR6 delivery for various cases of #DB injection
  KVM: X86: Declare KVM_CAP_SET_GUEST_DEBUG properly

Pull powerpc fixes from Michael Ellerman:

 - A fix for unrecoverable SLB faults in the interrupt exit path,
   introduced by the recent rewrite of interrupt exit in C.

 - Four fixes for our KUAP (Kernel Userspace Access Prevention) support
   on 64-bit. These are all fairly minor with the exception of the
   change to evaluate the get/put_user() arguments before we enable user
   access, which reduces the amount of code we run with user access
   enabled.

 - A fix for our secure boot IMA rules, if enforcement of module
   signatures is enabled at runtime rather than build time.

 - A fix to our 32-bit VDSO clock_getres() which wasn't falling back to
   the syscall for unknown clocks.

 - A build fix for CONFIG_PPC_KUAP_DEBUG on 32-bit BookS, and another
   for 40x.

Thanks to: Christophe Leroy, Hugh Dickins, Nicholas Piggin, Aurelien
Jarno, Mimi Zohar, Nayna Jain.

* tag 'powerpc-5.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/40x: Make more space for system call exception
  powerpc/vdso32: Fallback on getres syscall when clock is unknown
  powerpc/32s: Fix build failure with CONFIG_PPC_KUAP_DEBUG
  powerpc/ima: Fix secure boot rules in ima arch policy
  powerpc/64s/kuap: Restore AMR in fast_interrupt_return
  powerpc/64s/kuap: Restore AMR in system reset exception
  powerpc/64/kuap: Move kuap checks out of MSR[RI]=0 regions of exit code
  powerpc/64s: Fix unrecoverable SLB crashes due to preemption check
  powerpc/uaccess: Evaluate macro arguments once, before user access is allowed

Pull csky updates from Guo Ren:

 - fix for copy_from/to_user (a hard-to-find bug, thx Viro)

 - fix for calltrace panic without FRAME_POINT

 - two fixes for perf

 - two build fixes

 - four fixes for non-fatal bugs (msa, rm dis_irq, cleanup psr,
   gdbmacros.txt)

* tag 'csky-for-linus-5.7-rc6' of git://github.com/c-sky/csky-linux:
  csky: Fixup raw_copy_from_user()
  csky: Fixup gdbmacros.txt with name sp in thread_struct
  csky: Fixup remove unnecessary save/restore PSR code
  csky: Fixup remove duplicate irq_disable
  csky: Fixup calltrace panic
  csky: Fixup perf callchain unwind
  csky: Fixup msa highest 3 bits mask
  csky: Fixup perf probe -x hungup
  csky: Fixup compile error for abiv1 entry.S
  csky/ftrace: Fixup error when disable CONFIG_DYNAMIC_FTRACE

Pull ARM SoC/dt fixes from Arnd Bergmann:
 "This round of fixes is almost exclusively device tree changes, with
  trivial defconfig fixes and one compiler warning fix added in.

  A number of patches are to fix dtc warnings, in particular on Amlogic,
  i.MX and Rockchips.

  Other notable changes include:

  Renesas:
   - Fix a wrong clock configuration on R-Mobile A1
   - Fix IOMMU support on R-Car V3H

  Allwinner
   - Multiple audio fixes

  Qualcomm
   - Use a safe CPU voltage on MSM8996
   - Fixes to match a late audio driver change

  Rockchip:
   - Some fixes for the newly added Pinebook Pro

  NXP i.MX:
   - Fix I2C1 pinctrl configuration for i.MX27 phytec-phycard board
   - Fix imx6dl-yapp4-ursa board Ethernet connection

  OMAP:
   - A regression fix for non-existing can device on am534x-idk
   - Fix flakey wlan on droid4 where some devices would not connect at
     all because of internal pull being used with an external pull
   - Fix occasional missed wake-up events on droid4 modem uart"

* tag 'arm-soc-fixes-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (51 commits)
  ARM: dts: iwg20d-q7-dbcm-ca: Remove unneeded properties in hdmi@39
  ARM: dts: renesas: Make hdmi encoder nodes compliant with DT bindings
  arm64: dts: renesas: Make hdmi encoder nodes compliant with DT bindings
  arm64: defconfig: add MEDIA_PLATFORM_SUPPORT
  arm64: defconfig: ARCH_R8A7795: follow changed config symbol name
  arm64: defconfig: add DRM_DISPLAY_CONNECTOR
  arm64: defconfig: DRM_DUMB_VGA_DAC: follow changed config symbol name
  ARM: oxnas: make ox820_boot_secondary static
  ARM: dts: r8a7740: Add missing extal2 to CPG node
  ARM: dts: omap4-droid4: Fix occasional lost wakeirq for uart1
  ARM: dts: omap4-droid4: Fix flakey wlan by disabling internal pull for gpio
  arm64: dts: allwinner: a64: Remove unused SPDIF sound card
  arm64: dts: allwinner: a64: pinetab: Fix cpvdd supply name
  arm64: dts: meson-g12: remove spurious blank line
  arm64: dts: meson-g12b-khadas-vim3: add missing frddr_a status property
  arm64: dts: meson-g12-common: fix dwc2 clock names
  arm64: dts: meson-g12b-ugoos-am6: fix usb vbus-supply
  arm64: dts: freescale: imx8mp: update input_val for AUDIOMIX_BIT_STREAM
  ARM: dts: r7s9210: Remove bogus clock-names from OSTM nodes
  ARM: dts: rockchip: fix pinctrl sub nodename for spi in rk322x.dtsi
  ...

Pull block fix from Jens Axboe:
 "Just a single NVMe pull in here, with a single fix for a missing DMA
  read memory barrier for completions"

* tag 'block-5.7-2020-05-16' of git://git.kernel.dk/linux-block:
  nvme-pci: dma read memory barrier for completions

Pull pin control fixes from Linus Walleij:
 "A bunch of pin control fixes, some a bit overly ripe, sorry about
  that. We have important systems like Intel laptops and Qualcomm mobile
  chips covered.

   - Pad lock register on Intel Sunrisepoint had the wrong offset

   - Fix pin config setting for the Baytrail GPIO chip

   - Fix a compilation warning in the Mediatek driver

   - Fix a function group name in the Actions driver

   - Fix a behaviour bug in the edge polarity code in the Qualcomm
     driver

   - Add a missing spinlock in the Intel Cherryview driver

   - Add affinity callbacks to the Qualcomm MSMGPIO chip"

* tag 'pinctrl-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: qcom: Add affinity callbacks to msmgpio IRQ chip
  pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler
  pinctrl: qcom: fix wrong write in update_dual_edge
  pinctrl: actions: fix function group name for i2c0_group
  pinctrl: mediatek: remove shadow variable declaration
  pinctrl: baytrail: Enable pin configuration setting for GPIO chip
  pinctrl: sunrisepoint: Fix PAD lock register offset for SPT-H

Pull io_uring fixes from Jens Axboe:
 "Two small fixes that should go into this release:

   - Check and handle zero length splice (Pavel)

   - Fix a regression in this merge window for fixed files used with
     polled block IO"

* tag 'io_uring-5.7-2020-05-15' of git://git.kernel.dk/linux-block:
  io_uring: polled fixed file must go through free iteration
  io_uring: fix zero len do_splice()

Pull NVMe fix from Christoph.

* 'nvme-5.7' of git://git.infradead.org/nvme:
  nvme-pci: dma read memory barrier for completions

Merge tag 'renesas-fixes-for-v5.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes

Renesas fixes for v5.7 (take two)

  - Fix a wrong clock configuration on R-Mobile A1,
  - Minor fixes that are fast-tracked to avoid introducing regressions
    during conversion of DT bindings to json-schema.

* tag 'renesas-fixes-for-v5.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  ARM: dts: iwg20d-q7-dbcm-ca: Remove unneeded properties in hdmi@39
  ARM: dts: renesas: Make hdmi encoder nodes compliant with DT bindings
  arm64: dts: renesas: Make hdmi encoder nodes compliant with DT bindings
  ARM: dts: r8a7740: Add missing extal2 to CPG node

Link: https://lore.kernel.org/r/20200515125043.22811-1-geert+renesas@glider.beSigned-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'sunxi-fixes-for-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes

Two fixes for the Allwinner SoCs, one to remove some inexistant sound card on
the A64, and one to fix the audio codec regulator on the pinetab.

* tag 'sunxi-fixes-for-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  arm64: dts: allwinner: a64: Remove unused SPDIF sound card
  arm64: dts: allwinner: a64: pinetab: Fix cpvdd supply name

Link: https://lore.kernel.org/r/f7a98a47-316d-4b1a-b5a5-0e1e330d5f52.lettre@localhostSigned-off-by: Arnd Bergmann <arnd@arndb.de>

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

  Stable fixes:
   - nfs: fix NULL deference in nfs4_get_valid_delegation

  Bugfixes:
   - Fix corruption of the return value in cachefiles_read_or_alloc_pages()
   - Fix several fscache cookie issues
   - Fix a fscache queuing race that can trigger a BUG_ON
   - NFS: Fix two use-after-free regressions due to the RPC_TASK_CRED_NOREF flag
   - SUNRPC: Fix a use-after-free regression in rpc_free_client_work()
   - SUNRPC: Fix a race when tearing down the rpc client debugfs directory
   - SUNRPC: Signalled ASYNC tasks need to exit
   - NFSv3: fix rpc receive buffer size for MOUNT call"

* tag 'nfs-for-5.7-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv3: fix rpc receive buffer size for MOUNT call
  SUNRPC: 'Directory with parent 'rpc_clnt' already present!'
  NFS/pnfs: Don't use RPC_TASK_CRED_NOREF with pnfs
  NFS: Don't use RPC_TASK_CRED_NOREF with delegreturn
  SUNRPC: Signalled ASYNC tasks need to exit
  nfs: fix NULL deference in nfs4_get_valid_delegation
  SUNRPC: fix use-after-free in rpc_free_client_work()
  cachefiles: Fix race between read_waiter and read_copier involving op->to_do
  NFSv4: Fix fscache cookie aux_data to ensure change_attr is included
  NFS: Fix fscache super_cookie allocation
  NFS: Fix fscache super_cookie index_key from changing after umount
  cachefiles: Fix corruption of the return value in cachefiles_read_or_alloc_pages()

Pull networking fixes from David Miller:

 1) Fix sk_psock reference count leak on receive, from Xiyu Yang.

 2) CONFIG_HNS should be invisible, from Geert Uytterhoeven.

 3) Don't allow locking route MTUs in ipv6, RFCs actually forbid this,
    from Maciej Żenczykowski.

 4) ipv4 route redirect backoff wasn't actually enforced, from Paolo
    Abeni.

 5) Fix netprio cgroup v2 leak, from Zefan Li.

 6) Fix infinite loop on rmmod in conntrack, from Florian Westphal.

 7) Fix tcp SO_RCVLOWAT hangs, from Eric Dumazet.

 8) Various bpf probe handling fixes, from Daniel Borkmann.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (68 commits)
  selftests: mptcp: pm: rm the right tmp file
  dpaa2-eth: properly handle buffer size restrictions
  bpf: Restrict bpf_trace_printk()'s %s usage and add %pks, %pus specifier
  bpf: Add bpf_probe_read_{user, kernel}_str() to do_refine_retval_range
  bpf: Restrict bpf_probe_read{, str}() only to archs where they work
  MAINTAINERS: Mark networking drivers as Maintained.
  ipmr: Add lockdep expression to ipmr_for_each_table macro
  ipmr: Fix RCU list debugging warning
  drivers: net: hamradio: Fix suspicious RCU usage warning in bpqether.c
  net: phy: broadcom: fix BCM54XX_SHD_SCR3_TRDDAPD value for BCM54810
  tcp: fix error recovery in tcp_zerocopy_receive()
  MAINTAINERS: Add Jakub to networking drivers.
  MAINTAINERS: another add of Karsten Graul for S390 networking
  drivers: ipa: fix typos for ipa_smp2p structure doc
  pppoe: only process PADT targeted at local interfaces
  selftests/bpf: Enforce returning 0 for fentry/fexit programs
  bpf: Enforce returning 0 for fentry/fexit progs
  net: stmmac: fix num_por initialization
  security: Fix the default value of secid_to_secctx hook
  libbpf: Fix register naming in PT_REGS s390 macros
  ...

Pull rdma fixes from Jason Gunthorpe:
 "A few minor bug fixes for user visible defects, and one regression:

   - Various bugs from static checkers and syzkaller

   - Add missing error checking in mlx4

   - Prevent RTNL lock recursion in i40iw

   - Fix segfault in cxgb4 in peer abort cases

   - Fix a regression added in 5.7 where the IB_EVENT_DEVICE_FATAL could
     be lost, and wasn't delivered to all the FDs"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/uverbs: Move IB_EVENT_DEVICE_FATAL to destroy_uobj
  RDMA/uverbs: Do not discard the IB_EVENT_DEVICE_FATAL event
  RDMA/iw_cxgb4: Fix incorrect function parameters
  RDMA/core: Fix double put of resource
  IB/core: Fix potential NULL pointer dereference in pkey cache
  IB/hfi1: Fix another case where pq is left on waitlist
  IB/i40iw: Remove bogus call to netdev_master_upper_dev_get()
  IB/mlx4: Test return value of calls to ib_get_cached_pkey
  RDMA/rxe: Always return ERR_PTR from rxe_create_mmap_info()
  i40iw: Fix error handling in i40iw_manage_arp_cache()

Merge tag 'linux-kselftest-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:

 - lkdtm runner fixes to prevent dmesg clearing and shellcheck errors

 - ftrace test handling when test module doesn't exist

 - nsfs test fix to replace zero-length array with flexible-array

 - dmabuf-heaps test fix to return clear error value

* tag 'linux-kselftest-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/lkdtm: Use grep -E instead of egrep
  selftests/lkdtm: Don't clear dmesg when running tests
  selftests/ftrace: mark irqsoff_tracer.tc test as unresolved if the test module does not exist
  tools/testing: Replace zero-length array with flexible-array
  kselftests: dmabuf-heaps: Fix confused return value on expected error testing

Pull RISC-V fixes from Palmer Dabbelt:
 "A handful of build fixes, all found by Huawei's autobuilder.

  None of these patches should have any functional impact on kernels
  that build, and they're mostly related to various features
  intermingling with !MMU.

  While some of these might be better hoisted to generic code, it seems
  better to have the simple fixes in the meanwhile.

  As far as I know these are the only outstanding patches for 5.7"

* tag 'riscv-for-linus-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: mmiowb: Fix implicit declaration of function 'smp_processor_id'
  riscv: pgtable: Fix __kernel_map_pages build error if NOMMU
  riscv: Make SYS_SUPPORTS_HUGETLBFS depends on MMU
  riscv: Disable ARCH_HAS_DEBUG_VIRTUAL if NOMMU
  riscv: Add pgprot_writecombine/device and PAGE_SHARED defination if NOMMU
  riscv: stacktrace: Fix undefined reference to `walk_stackframe'
  riscv: Fix unmet direct dependencies built based on SOC_VIRT
  riscv: perf: RISCV_BASE_PMU should be independent
  riscv: perf_event: Make some funciton static

Pull arm64 fix from Catalin Marinas:
 "Fix flush_icache_range() second argument in machine_kexec() to be an
  address rather than size"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: fix the flush_icache_range arguments in machine_kexec

Alexei Starovoitov says:

====================
pull-request: bpf 2020-05-15

The following pull-request contains BPF updates for your *net* tree.

We've added 9 non-merge commits during the last 2 day(s) which contain
a total of 14 files changed, 137 insertions(+), 43 deletions(-).

The main changes are:

1) Fix secid_to_secctx LSM hook default value, from Anders.

2) Fix bug in mmap of bpf array, from Andrii.

3) Restrict bpf_probe_read to archs where they work, from Daniel.

4) Enforce returning 0 for fentry/fexit progs, from Yonghong.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Bank_num is a one-based count of banks, not a zero-based index. It
overflows the allocated space only when strictly greater than
KVM_MAX_MCE_BANKS.

Fixes: a9e38c3e ("KVM: x86: Catch potential overrun in MCE setup")
Signed-off-by: Jue Wang <juew@google.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Message-Id: <20200511225616.19557-1-jmattson@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

This topic branch will be included in both kvm/master and kvm/next
(for 5.8) in order to simplify testing of kvm/next.

"$err" is a variable pointing to a temp file. "$out" is not: only used
as a local variable in "check()" and representing the output of a
command line.

Fixes: eedbc685 (selftests: add PM netlink functional tests)
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

Depending on the WRIOP version, the buffer size on the RX path must by a
multiple of 64 or 256. Handle this restriction properly by aligning down
the buffer size to the necessary value. Also, use the new buffer size
dynamically computed instead of the compile time one.

Fixes: 27c87486 ("dpaa2-eth: Use a single page per Rx buffer")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge tag 'hwmon-for-v5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix ADC access synchronization problem with da9052 driver

 - Fix temperature limit and status reporting in nct7904 driver

 - Fix drivetemp temperature reporting if SCT is supported but SCT data
   tables are not.

* tag 'hwmon-for-v5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (da9052) Synchronize access with mfd
  hwmon: (nct7904) Fix incorrect range of temperature limit registers
  hwmon: (nct7904) Read all SMI status registers in probe function
  hwmon: (drivetemp) Fix SCT support if SCT data tables are not supported

Pull sound fixes from Takashi Iwai:
 "Things look good and calming down; the only change to ALSA core is the
  fix for racy rawmidi buffer accesses spotted by syzkaller, and the
  rest are all small device-specific quirks for HD-audio and USB-audio
  devices"

* tag 'sound-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek - Limit int mic boost for Thinkpad T530
  ALSA: hda/realtek - Add COEF workaround for ASUS ZenBook UX431DA
  ALSA: hda/realtek: Enable headset mic of ASUS UX581LV with ALC295
  ALSA: hda/realtek - Enable headset mic of ASUS UX550GE with ALC295
  ALSA: hda/realtek - Enable headset mic of ASUS GL503VM with ALC295
  ALSA: hda/realtek: Add quirk for Samsung Notebook
  ALSA: rawmidi: Fix racy buffer resize under concurrent accesses
  ALSA: usb-audio: add mapping for ASRock TRX40 Creator
  ALSA: hda/realtek - Fix S3 pop noise on Dell Wyse
  Revert "ALSA: hda/realtek: Fix pop noise on ALC225"
  ALSA: firewire-lib: fix 'function sizeof not defined' error of tracepoints format
  ALSA: usb-audio: Add control message quirk delay for Kingston HyperX headset

Pull drm fixes from Dave Airlie:
 "As mentioned last week an i915 PR came in late, but I left it, so the
  i915 bits of this cover 2 weeks, which is why it's likely a bit larger
  than usual.

  Otherwise it's mostly amdgpu fixes, one tegra fix, one meson fix.

  i915:
   - Handle idling during i915_gem_evict_something busy loops (Chris)
   - Mark current submissions with a weak-dependency (Chris)
   - Propagate error from completed fences (Chris)
   - Fixes on execlist to avoid GPU hang situation (Chris)
   - Fixes couple deadlocks (Chris)
   - Timeslice preemption fixes (Chris)
   - Fix Display Port interrupt handling on Tiger Lake (Imre)
   - Reduce debug noise around Frame Buffer Compression (Peter)
   - Fix logic around IPC W/a for Coffee Lake and Kaby Lake (Sultan)
   - Avoid dereferencing a dead context (Chris)

  tegra:
   - tegra120/4 smmu fixes

  amdgpu:
   - Clockgating fixes
   - Fix fbdev with scatter/gather display
   - S4 fix for navi
   - Soft recovery for gfx10
   - Freesync fixes
   - Atomic check cursor fix
   - Add a gfxoff quirk
   - MST fix

  amdkfd:
   - Fix GEM reference counting

  meson:
   - error code propogation fix"

* tag 'drm-fixes-2020-05-15' of git://anongit.freedesktop.org/drm/drm: (29 commits)
  drm/i915: Handle idling during i915_gem_evict_something busy loops
  drm/meson: pm resume add return errno branch
  drm/amd/amdgpu: Update update_config() logic
  drm/amd/amdgpu: add raven1 part to the gfxoff quirk list
  drm/i915: Mark concurrent submissions with a weak-dependency
  drm/i915: Propagate error from completed fences
  drm/i915/gvt: Fix kernel oops for 3-level ppgtt guest
  drm/i915/gvt: Init DPLL/DDI vreg for virtual display instead of inheritance.
  drm/amd/display: add basic atomic check for cursor plane
  drm/amd/display: Fix vblank and pageflip event handling for FreeSync
  drm/amdgpu: implement soft_recovery for gfx10
  drm/amdgpu: enable hibernate support on Navi1X
  drm/amdgpu: Use GEM obj reference for KFD BOs
  drm/amdgpu: force fbdev into vram
  drm/amd/powerplay: perform PG ungate prior to CG ungate
  drm/amdgpu: drop unnecessary cancel_delayed_work_sync on PG ungate
  drm/amdgpu: disable MGCG/MGLS also on gfx CG ungate
  drm/i915/execlists: Track inflight CCID
  drm/i915/execlists: Avoid reusing the same logical CCID
  drm/i915/gem: Remove object_is_locked assertion from unpin_from_display_plane
  ...

Daniel Borkmann says:

====================
Small set of fixes in order to restrict BPF helpers for tracing which are
broken on archs with overlapping address ranges as per discussion in [0].
I've targetted this for -bpf tree so they can be routed as fixes. Thanks!

v1 -> v2:
  - switch to reusable %pks, %pus format specifiers (Yonghong)
    - fixate %s on kernel_ds probing for archs with overlapping addr space

      [0] https://lore.kernel.org/bpf/CAHk-=wjJKo0GVixYLmqPn-Q22WFu0xHaBSjKEo7e7Yw72y5SPQ@mail.gmail.com/T/
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

Usage of plain %s conversion specifier in bpf_trace_printk() suffers from the
very same issue as bpf_probe_read{,str}() helpers, that is, it is broken on
archs with overlapping address ranges.

While the helpers have been addressed through work in 6ae08ae3 ("bpf: Add
probe_read_{user, kernel} and probe_read_{user, kernel}_str helpers"), we need
an option for bpf_trace_printk() as well to fix it.

Similarly as with the helpers, force users to make an explicit choice by adding
%pks and %pus specifier to bpf_trace_printk() which will then pick the corresponding
strncpy_from_unsafe*() variant to perform the access under KERNEL_DS or USER_DS.
The %pk* (kernel specifier) and %pu* (user specifier) can later also be extended
for other objects aside strings that are probed and printed under tracing, and
reused out of other facilities like bpf_seq_printf() or BTF based type printing.

Existing behavior of %s for current users is still kept working for archs where it
is not broken and therefore gated through CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE.
For archs not having this property we fall-back to pick probing under KERNEL_DS as
a sensible default.

Fixes: 8d3b7dce ("bpf: add support for %s specifier to bpf_trace_printk()")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Link: https://lore.kernel.org/bpf/20200515101118.6508-4-daniel@iogearbox.net

Given bpf_probe_read{,str}() BPF helpers are now only available under
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, we need to add the drop-in
replacements of bpf_probe_read_{kernel,user}_str() to do_refine_retval_range()
as well to avoid hitting the same issue as in 849fa506 ("bpf/verifier:
refine retval R0 state for bpf_get_stack helper").
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200515101118.6508-3-daniel@iogearbox.net

Given the legacy bpf_probe_read{,str}() BPF helpers are broken on archs
with overlapping address ranges, we should really take the next step to
disable them from BPF use there.

To generally fix the situation, we've recently added new helper variants
bpf_probe_read_{user,kernel}() and bpf_probe_read_{user,kernel}_str().
For details on them, see 6ae08ae3 ("bpf: Add probe_read_{user, kernel}
and probe_read_{user,kernel}_str helpers").

Given bpf_probe_read{,str}() have been around for ~5 years by now, there
are plenty of users at least on x86 still relying on them today, so we
cannot remove them entirely w/o breaking the BPF tracing ecosystem.

However, their use should be restricted to archs with non-overlapping
address ranges where they are working in their current form. Therefore,
move this behind a CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE and
have x86, arm64, arm select it (other archs supporting it can follow-up
on it as well).

For the remaining archs, they can workaround easily by relying on the
feature probe from bpftool which spills out defines that can be used out
of BPF C code to implement the drop-in replacement for old/new kernels
via: bpftool feature probe macro
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/bpf/20200515101118.6508-2-daniel@iogearbox.net

... or the odyssey of trying to disable the stack protector for the
function which generates the stack canary value.

The whole story started with Sergei reporting a boot crash with a kernel
built with gcc-10:

  Kernel panic — not syncing: stack-protector: Kernel stack is corrupted in: start_secondary
  CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc5—00235—gfffb08b3 #139
  Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./H77M—D3H, BIOS F12 11/14/2013
  Call Trace:
    dump_stack
    panic
    ? start_secondary
    __stack_chk_fail
    start_secondary
    secondary_startup_64
  -—-[ end Kernel panic — not syncing: stack—protector: Kernel stack is corrupted in: start_secondary

This happens because gcc-10 tail-call optimizes the last function call
in start_secondary() - cpu_startup_entry() - and thus emits a stack
canary check which fails because the canary value changes after the
boot_init_stack_canary() call.

To fix that, the initial attempt was to mark the one function which
generates the stack canary with:

  __attribute__((optimize("-fno-stack-protector"))) ... start_secondary(void *unused)

however, using the optimize attribute doesn't work cumulatively
as the attribute does not add to but rather replaces previously
supplied optimization options - roughly all -fxxx options.

The key one among them being -fno-omit-frame-pointer and thus leading to
not present frame pointer - frame pointer which the kernel needs.

The next attempt to prevent compilers from tail-call optimizing
the last function call cpu_startup_entry(), shy of carving out
start_secondary() into a separate compilation unit and building it with
-fno-stack-protector, was to add an empty asm("").

This current solution was short and sweet, and reportedly, is supported
by both compilers but we didn't get very far this time: future (LTO?)
optimization passes could potentially eliminate this, which leads us
to the third attempt: having an actual memory barrier there which the
compiler cannot ignore or move around etc.

That should hold for a long time, but hey we said that about the other
two solutions too so...
Reported-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Kalle Valo <kvalo@codeaurora.org>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20200314164451.346497-1-slyfox@gentoo.org

Remove the adi,input-style and adi,input-justification properties of
hdmi@39 to make it compliant with the "adi,adv7511w" DT binding.
Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20200511110611.3142-6-ricardo.canuelo@collabora.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Small fixes to make these DTs compliant with the adi,adv7511w and
adi,adv7513 bindings:

  r8a7745-iwg22d-sodimm-dbhd-ca.dts
  r8a7790-lager.dts
  r8a7790-stout.dts
  r8a7791-koelsch.dts
  r8a7791-porter.dts
  r8a7792-blanche.dts
  r8a7793-gose.dts
  r8a7794-silk.dts:
    Remove the adi,input-style and adi,input-justification properties.

  r8a7792-wheat.dts:
    Reorder the I2C slave addresses of hdmi@3d and hdmi@39 and remove
    the adi,input-style and adi,input-justification properties.
Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20200511110611.3142-3-ricardo.canuelo@collabora.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Small fixes to make these DTs compliant with the adi,adv7511w binding.

  r8a77970-eagle.dts,
  r8a77970-v3msk.dts,
  r8a77980-condor.dts,
  r8a77980-v3hsk.dts,
  r8a77990-ebisu.dts:
    Remove the adi,input-style and adi,input-justification properties.

  r8a77995-draak.dts:
    Reorder the I2C slave addresses of the hdmi-encoder@39 node and
    remove the adi,input-style and adi,input-justification properties.
Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20200511110611.3142-2-ricardo.canuelo@collabora.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

The unwind_state 'error' field is used to inform the reliable unwinding
code that the stack trace can't be trusted.  Set this field for all
errors in __unwind_start().

Also, move the zeroing out of the unwind_state struct to before the ORC
table initialization check, to prevent the caller from reading
uninitialized data if the ORC table is corrupted.

Fixes: af085d90 ("stacktrace/x86: add function for detecting reliable stack traces")
Fixes: d3a09104 ("x86/unwinder/orc: Dont bail on stack overflow")
Fixes: 98d0c8eb ("x86/unwind/orc: Prevent unwinding before ORC initialization")
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/d6ac7215a84ca92b895fdd2e1aa546729417e6e6.1589487277.git.jpoimboe@redhat.com

Just one meson patch this time to propagate an error code
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200514073538.wvdtv5s2mt4wdrdj@gilmour.lan

Merge tag 'drm-intel-fixes-2020-05-13-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Handle idling during i915_gem_evict_something busy loops (Chris)
- Mark current submissions with a weak-dependency (Chris)
- Propagate errror from completed fences (Chris)
- Fixes on execlist to avoid GPU hang situation (Chris)
- Fixes couple deadlocks (Chris)
- Timeslice preemption fixes (Chris)
- Fix Display Port interrupt handling on Tiger Lake (Imre)
- Reduce debug noise around Frame Buffer Compression
+(Peter)
- Fix logic around IPC W/a for Coffee Lake and Kaby Lake
+(Sultan)
- Avoid dereferencing a dead context (Chris)
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200514040235.GA2164266@intel.com

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

During the initialization process, ipmr_new_table() is called
to create new tables which in turn calls ipmr_get_table() which
traverses net->ipv4.mr_tables without holding the writer lock.
However, this is safe to do so as no tables exist at this time.
Hence add a suitable lockdep expression to silence the following
false-positive warning:

=============================
WARNING: suspicious RCU usage
5.7.0-rc3-next-20200428-syzkaller #0 Not tainted
-----------------------------
net/ipv4/ipmr.c:136 RCU-list traversed in non-reader section!!

ipmr_get_table+0x130/0x160 net/ipv4/ipmr.c:136
ipmr_new_table net/ipv4/ipmr.c:403 [inline]
ipmr_rules_init net/ipv4/ipmr.c:248 [inline]
ipmr_net_init+0x133/0x430 net/ipv4/ipmr.c:3089

Fixes: f0ad0860 ("ipv4: ipmr: support multiple tables")
Reported-by: syzbot+1519f497f2f9f08183c6@syzkaller.appspotmail.com
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Amol Grover <frextrite@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>