Add required display hw catalog changes for SM6115.
Reviewed-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: NAdam Skladowski <a39.skl@gmail.com>
Reviewed-by: NKonrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/512875/
Link: https://lore.kernel.org/r/20221124001708.25720-3-a39.skl@gmail.comSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Add DPU and MDSS schemas to describe MDSS and DPU blocks on the Qualcomm
SM6115 platform.
Configuration for DSI/PHY is shared with QCM2290 so compatibles are reused.
Lack of dsi phy supply in example is intended
due to fact on qcm2290, sm6115 and sm6125
this phy is supplied via power domain, not regulator.
Signed-off-by: NAdam Skladowski <a39.skl@gmail.com>
Reviewed-by: NKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/512872/
Link: https://lore.kernel.org/r/20221124001708.25720-2-a39.skl@gmail.comSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

The sc7280_pp declaration is not located by the other _pp
declarations, but rather hidden around the _merge_3d
declarations. Let's fix this to avoid confusion.
Signed-off-by: NRobert Foss <robert.foss@linaro.org>
Reviewed-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/509153/
Link: https://lore.kernel.org/r/20221028120812.339100-3-robert.foss@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Add DPU and MDSS schemas to describe MDSS and DPU blocks on the Qualcomm
SM8250 platform.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508397/
Link: https://lore.kernel.org/r/20221024164225.3236654-13-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Add missing device nodes (DSI, PHYs, DP/eDP) to the existing MDSS
schemas.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508391/
Link: https://lore.kernel.org/r/20221024164225.3236654-12-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

In order to make the schema more readable, split dpu-qcm2290 into the DPU
and MDSS parts, each one describing just a single device binding.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508383/
Link: https://lore.kernel.org/r/20221024164225.3236654-11-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

In order to make the schema more readable, split dpu-msm8998 into the DPU
and MDSS parts, each one describing just a single device binding.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508388/
Link: https://lore.kernel.org/r/20221024164225.3236654-10-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

In order to make the schema more readable, split dpu-sdm845 into the DPU
and MDSS parts, each one describing just a single device binding.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508382/
Link: https://lore.kernel.org/r/20221024164225.3236654-9-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

In order to make the schema more readable, split dpu-sc7280 into the DPU
and MDSS parts, each one describing just a single device binding.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508387/
Link: https://lore.kernel.org/r/20221024164225.3236654-8-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

In order to make the schema more readable, split dpu-sc7180 into the DPU
and MDSS parts, each one describing just a single device binding.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508386/
Link: https://lore.kernel.org/r/20221024164225.3236654-7-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Move properties common to all MDSS DT nodes to the mdss-common.yaml.

This extends qcom,msm8998-mdss schema to allow interconnect nodes, which
will be added later, once msm8998 gains interconnect support.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508385/
Link: https://lore.kernel.org/r/20221024164225.3236654-6-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Move properties common to all DPU DT nodes to the dpu-common.yaml.

Note, this removes description of individual DPU port@ nodes. However
such definitions add no additional value. The reg values do not
correspond to hardware INTF indices. The driver discovers and binds
these ports not paying any care for the order of these items. Thus just
leave the reference to graph.yaml#/properties/ports and the description.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508384/
Link: https://lore.kernel.org/r/20221024164225.3236654-5-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Add interconnects required for the SDM845 MDSS device tree node. This
change was made in the commit c8c61c09 ("arm64: dts: qcom: sdm845:
Add interconnects property for display"), but was not reflected in the
schema.
Reviewed-by: NKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508380/
Link: https://lore.kernel.org/r/20221024164225.3236654-4-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Add gcc-bus clock required for the SDM845 DPU device tree node. This
change was made in the commit 111c5285 ("arm64: dts: qcom: sdm845:
move bus clock to mdp node for sdm845 target"), but was not reflected in
the schema.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508379/
Link: https://lore.kernel.org/r/20221024164225.3236654-3-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Split Mobile Display SubSystem (MDSS) root node bindings to the separate
yaml file. Changes to the existing (txt) schema:
 - Added optional "vbif_nrt_phys" region used by msm8996
 - Made "bus" and "vsync" clocks optional (they are not used by some
   platforms)
 - Added optional resets property referencing MDSS reset
 - Defined child nodes pointing to corresponding reference schema.
 - Dropped the "lut" clock. It was added to the schema by mistake (it is
   a part of mdp4 schema, not the mdss).
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508378/
Link: https://lore.kernel.org/r/20221024164225.3236654-2-dmitry.baryshkov@linaro.orgSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code.
No functional change.
Signed-off-by: NLiu Shixin <liushixin2@huawei.com>
Reviewed-by: NAbhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/504252/
Link: https://lore.kernel.org/r/20220922142147.3246649-1-liushixin2@huawei.comSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Add support for P010 color format. This adds support for both linear and
compressed formats.
Signed-off-by: NJessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: NRob Clark <robdclark@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/500822/
Link: https://lore.kernel.org/r/20220901203422.217-3-quic_jesszhan@quicinc.comSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Add support for XR30 color format. This supports both linear and
compressed formats.
Signed-off-by: NJessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: NRob Clark <robdclark@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/500820/
Link: https://lore.kernel.org/r/20220901203422.217-2-quic_jesszhan@quicinc.comSigned-off-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>

Xilinx ZynqMP DisplayPort bridge support
Signed-off-by: NDave Airlie <airlied@redhat.com>

From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y1cdU4HJoy0Pr2sQ@pendragon.ideasonboard.com

Trivial removal of an unused variable. Not sure how it snuck by me and
build bots in the 7c99616e.

Fixes: 7c99616e ("drm: Remove drm_mode_config::fb_base")
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Thomas Zimmermann <tzimemrmann@suse.de>
Cc: Christian König <christian.koenig@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: NLyude Paul <lyude@redhat.com>
Signed-off-by: NZack Rusin <zackr@vmware.com>
Signed-off-by: NLyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221021010703.536318-1-zack@kde.orgSigned-off-by: NDave Airlie <airlied@redhat.com>

drm-misc-next for 6.2:

UAPI Changes:
  - Documentation for page-flip flags

Cross-subsystem Changes:
  - dma-buf: Add unlocked variant of vmapping and attachment-mapping
    functions

Core Changes:
  - atomic-helpers: CRTC primary plane test fixes
  - connector: TV API consistency improvements, cmdline parsing
    improvements
  - crtc-helpers: Introduce drm_crtc_helper_atomic_check() helper
  - edid: Fixes for HFVSDB parsing,
  - fourcc: Addition of the Vivante tiled modifier
  - makefile: Sort and reorganize the objects files
  - mode_config: Remove fb_base from drm_mode_config_funcs
  - sched: Add a module parameter to change the scheduling policy,
    refcounting fix for fences
  - tests: Sort the Kunit tests in the Makefile, improvements to the
    DP-MST tests
  - ttm: Remove unnecessary drm_mm_clean() call

Driver Changes:
  - New driver: ofdrm
  - Move all drivers to a common dma-buf locking convention
  - bridge:
    - adv7533: Remove dynamic lane switching
    - it6505: Runtime PM support
    - ps8640: Handle AUX defer messages
    - tc358775: Drop soft-reset over I2C
  - ast: Atomic Gamma LUT Support, Convert to SHMEM, various
    improvements
  - lcdif: Support for YUV planes
  - mgag200: Fix PLL Setup on some revisions
  - udl: Modesetting improvements, hot-unplug support
  - vc4: Fix support for PAL-M
Signed-off-by: NDave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20221020072405.g3o4hxuk75gmeumw@houat

Pull kvm fixes from Paolo Bonzini:
 "RISC-V:

   - Fix compilation without RISCV_ISA_ZICBOM

   - Fix kvm_riscv_vcpu_timer_pending() for Sstc

  ARM:

   - Fix a bug preventing restoring an ITS containing mappings for very
     large and very sparse device topology

   - Work around a relocation handling error when compiling the nVHE
     object with profile optimisation

   - Fix for stage-2 invalidation holding the VM MMU lock for too long
     by limiting the walk to the largest block mapping size

   - Enable stack protection and branch profiling for VHE

   - Two selftest fixes

  x86:

   - add compat implementation for KVM_X86_SET_MSR_FILTER ioctl

  selftests:

   - synchronize includes between include/uapi and tools/include/uapi"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  tools: include: sync include/api/linux/kvm.h
  KVM: x86: Add compat handler for KVM_X86_SET_MSR_FILTER
  KVM: x86: Copy filter arg outside kvm_vm_ioctl_set_msr_filter()
  kvm: Add support for arch compat vm ioctls
  RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc
  RISC-V: Fix compilation without RISCV_ISA_ZICBOM
  KVM: arm64: vgic: Fix exit condition in scan_its_table()
  KVM: arm64: nvhe: Fix build with profile optimization
  KVM: selftests: Fix number of pages for memory slot in memslot_modification_stress_test
  KVM: arm64: selftests: Fix multiple versions of GIC creation
  KVM: arm64: Enable stack protection and branch profiling for VHE
  KVM: arm64: Limit stage2_apply_range() batch size to largest block
  KVM: arm64: Work out supported block level at compile time

This reverts commit 72a95859.

It broke reboots on big-endian MIPS and MIPS64 malta QEMU instances,
which use the syscon driver.  Little-endian is not effected, which means
likely it's important to handle regmap_get_val_endian() in this function
after all.

Fixes: 72a95859 ("mfd: syscon: Remove repetition of the regmap_get_val_endian()")
Reviewed-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Lee Jones <lee@kernel.org>
Signed-off-by: NJason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Commit bfca3dd3 ("kernel/utsname_sysctl.c: print kernel arch") added
a new entry to the uts_kern_table[] array, but didn't update the
UTS_PROC_xyz enumerators of older entries, breaking anything that used
them.

Which is admittedly not many cases: it's really just the two uses of
uts_proc_notify() in kernel/sys.c.  But apparently journald-systemd
actually uses this to detect hostname changes.
Reported-by: NTorsten Hilbrich <torsten.hilbrich@secunet.com>
Fixes: bfca3dd3 ("kernel/utsname_sysctl.c: print kernel arch")
Link: https://lore.kernel.org/lkml/0c2b92a6-0f25-9538-178f-eee3b06da23f@secunet.com/
Link: https://linux-regtracking.leemhuis.info/regzbot/regression/0c2b92a6-0f25-9538-178f-eee3b06da23f@secunet.com/
Cc: Petr Vorel <pvorel@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull perf fixes from Borislav Petkov:

 - Fix raw data handling when perf events are used in bpf

 - Rework how SIGTRAPs get delivered to events to address a bunch of
   problems with it. Add a selftest for that too

* tag 'perf_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  bpf: Fix sample_flags for bpf_perf_event_output
  selftests/perf_events: Add a SIGTRAP stress test with disables
  perf: Fix missing SIGTRAPs

Pull scheduler fixes from Borislav Petkov:

 - Adjust code to not trip up CFI

 - Fix sched group cookie matching

* tag 'sched_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Introduce struct balance_callback to avoid CFI mismatches
  sched/core: Fix comparison in sched_group_cookie_match()

Pull objtool fix from Borislav Petkov:

 - Fix ORC stack unwinding when GCOV is enabled

* tag 'objtool_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/unwind/orc: Fix unreliable stack dump with gcov

Pull x86 fixes from Borislav Petkov:
 "As usually the case, right after a major release, the tip urgent
  branches accumulate a couple more fixes than normal. And here is the
  x86, a bit bigger, urgent pile.

   - Use the correct CPU capability clearing function on the error path
     in Intel perf LBR

   - A CFI fix to ftrace along with a simplification

   - Adjust handling of zero capacity bit mask for resctrl cache
     allocation on AMD

   - A fix to the AMD microcode loader to attempt patch application on
     every logical thread

   - A couple of topology fixes to handle CPUID leaf 0x1f enumeration
     info properly

   - Drop a -mabi=ms compiler option check as both compilers support it
     now anyway

   - A couple of fixes to how the initial, statically allocated FPU
     buffer state is setup and its interaction with dynamic states at
     runtime"

* tag 'x86_urgent_for_v6.0_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Fix copy_xstate_to_uabi() to copy init states correctly
  perf/x86/intel/lbr: Use setup_clear_cpu_cap() instead of clear_cpu_cap()
  ftrace,kcfi: Separate ftrace_stub() and ftrace_stub_graph()
  x86/ftrace: Remove ftrace_epilogue()
  x86/resctrl: Fix min_cbm_bits for AMD
  x86/microcode/AMD: Apply the patch early on every logical thread
  x86/topology: Fix duplicated core ID within a package
  x86/topology: Fix multiple packages shown on a single-package system
  hwmon/coretemp: Handle large core ID value
  x86/Kconfig: Drop check for -mabi=ms for CONFIG_EFI_STUB
  x86/fpu: Exclude dynamic states from init_fpstate
  x86/fpu: Fix the init_fpstate size check with the actual size
  x86/fpu: Configure init_fpstate attributes orderly

Pull io_uring follow-up from Jens Axboe:
 "Currently the zero-copy has automatic fallback to normal transmit, and
  it was decided that it'd be cleaner to return an error instead if the
  socket type doesn't support it.

  Zero-copy does work with UDP and TCP, it's more of a future proofing
  kind of thing (eg for samba)"

* tag 'io_uring-6.1-2022-10-22' of git://git.kernel.dk/linux:
  io_uring/net: fail zc sendmsg when unsupported by socket
  io_uring/net: fail zc send when unsupported by socket
  net: flag sockets supporting msghdr originated zerocopy

Merge tag 'hwmon-for-v6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - corsair-psu: Fix typo in USB id description, and add USB ID for new
   PSU

 - pwm-fan: Fix fan power handling when disabling fan control

* tag 'hwmon-for-v6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (corsair-psu) Add USB id of the new HX1500i psu
  hwmon: (pwm-fan) Explicitly switch off fan power when setting pwm1_enable to 0
  hwmon: (corsair-psu) fix typo in USB id description

Pull i2c fixes from Wolfram Sang:
 "RPM fix for qcom-cci, platform module alias for xiic, build warning
  fix for mlxbf, typo fixes in comments"

* tag 'i2c-for-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: mlxbf: depend on ACPI; clean away ifdeffage
  i2c: fix spelling typos in comments
  i2c: qcom-cci: Fix ordering of pm_runtime_xx and i2c_add_adapter
  i2c: xiic: Add platform module alias

Pull pci fixes from Bjorn Helgaas:

 - Revert a simplification that broke pci-tegra due to a masking error

 - Update MAINTAINERS for Kishon's email address change and TI
   DRA7XX/J721E maintainer change

* tag 'pci-v6.1-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Update Kishon's email address in PCI endpoint subsystem
  MAINTAINERS: Add Vignesh Raghavendra as maintainer of TI DRA7XX/J721E PCI driver
  Revert "PCI: tegra: Use PCI_CONF1_EXT_ADDRESS() macro"

Pull missed media updates from Mauro Carvalho Chehab:
 "It seems I screwed-up my previous pull request: it ends up that only
  half of the media patches that were in linux-next got merged in -rc1.

  The script which creates the signed tags silently failed due to
  5.19->6.0 so it ended generating a tag with incomplete stuff.

  So here are the missing parts:

   - a DVB core security fix

   - lots of fixes and cleanups for atomisp staging driver

   - old drivers that are VB1 are being moved to staging to be
     deprecated

   - several driver updates - mostly for embedded systems, but there are
     also some things addressing issues with some PC webcams, in the UVC
     video driver"

* tag 'media/v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (163 commits)
  media: sun6i-csi: Move csi buffer definition to main header file
  media: sun6i-csi: Introduce and use video helper functions
  media: sun6i-csi: Add media ops with link notify callback
  media: sun6i-csi: Remove controls handler from the driver
  media: sun6i-csi: Register the media device after creation
  media: sun6i-csi: Pass and store csi device directly in video code
  media: sun6i-csi: Tidy up video code
  media: sun6i-csi: Tidy up v4l2 code
  media: sun6i-csi: Tidy up Kconfig
  media: sun6i-csi: Use runtime pm for clocks and reset
  media: sun6i-csi: Define and use variant to get module clock rate
  media: sun6i-csi: Always set exclusive module clock rate
  media: sun6i-csi: Tidy up platform code
  media: sun6i-csi: Refactor main driver data structures
  media: sun6i-csi: Define and use driver name and (reworked) description
  media: cedrus: Add a Kconfig dependency on RESET_CONTROLLER
  media: sun8i-rotate: Add a Kconfig dependency on RESET_CONTROLLER
  media: sun8i-di: Add a Kconfig dependency on RESET_CONTROLLER
  media: sun4i-csi: Add a Kconfig dependency on RESET_CONTROLLER
  media: sun6i-csi: Add a Kconfig dependency on RESET_CONTROLLER
  ...

The previous patch fails zerocopy send requests for protocols that don't
support it, do the same for zerocopy sendmsg.
Signed-off-by: NPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0854e7bb4c3d810a48ec8b5853e2f61af36a0467.1666346426.git.asml.silence@gmail.comSigned-off-by: NJens Axboe <axboe@kernel.dk>

If a protocol doesn't support zerocopy it will silently fall back to
copying. This type of behaviour has always been a source of troubles
so it's better to fail such requests instead.

Cc: <stable@vger.kernel.org> # 6.0
Signed-off-by: NPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/2db3c7f16bb6efab4b04569cd16e6242b40c5cb3.1666346426.git.asml.silence@gmail.comSigned-off-by: NJens Axboe <axboe@kernel.dk>

We need an efficient way in io_uring to check whether a socket supports
zerocopy with msghdr provided ubuf_info. Add a new flag into the struct
socket flags fields.

Cc: <stable@vger.kernel.org> # 6.0
Signed-off-by: NPavel Begunkov <asml.silence@gmail.com>
Acked-by: NJakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/3dafafab822b1c66308bb58a0ac738b1e3f53f74.1666346426.git.asml.silence@gmail.comSigned-off-by: NJens Axboe <axboe@kernel.dk>

Also update the documentation accordingly.
Signed-off-by: NWilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/Y0FghqQCHG/cX5Jz@monster.localdomainSigned-off-by: NGuenter Roeck <linux@roeck-us.net>

Provide a definition of KVM_CAP_DIRTY_LOG_RING_ACQ_REL.

Fixes: 17601bfe ("KVM: Add KVM_CAP_DIRTY_LOG_RING_ACQ_REL capability and config option")
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>