This tablets gets a lot of things wrong:
- the secondary button is reported through Secondary Tip Switch
- the third button is reported through Invert

We need to add some out of proximity intermediate state when moving
back and forth with the eraser mode as it can only be triggered by
physically returning the pen, meaning that the tolerated transitions
can never happen.

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-15-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

The values are taken from the HID-BPF file.
Basically we are recomputing the array provided there.

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-14-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

Those tablets don't need special initialization, but are reporting
the events with the wrong usages:
- tip switch is used when the eraser should be used
- eraser is used instead of the secondary barrel switch

Add tests for those so we don't regress in the future.

Currently we set x/y tilt to 0 to not trigger the bpf program
compensate_coordinates_by_tilt()

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-13-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

All the *_WITH*BUTTON states were almost identical except for the
button itself.

I need to add a new device with a third button, and adding a bunch of
states is going to be quite cumbersome.

So convert the `button` parameter of PenState as a boolean, and store
which button is the target as an argument to all functions that need it.

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-12-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

few required changes:
- we need to count how many times a udev 'bind' event happens
- we need to tell `udev-hid-bpf` to not automatically attach the
  provided HID-BPF objects
- we need to manually attach the ones from the kernel tree, and wait
  for the second udev 'bind' event to happen

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-11-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

We need to slightly change base_device.py for supporting HID-BPF,
so instead of monkey patching, let's just embed it in the kernel tree.

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-10-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

This device is already fixed by "HID: do not assume HAT Switch
logical max < 8", but for people without the fix already, having the
HID-BPF locally can fix the device while they wait for their
distribution to update.

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-9-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

This tablets gets a lot of things wrong:
- the secondary button is reported through Secondary Tip Switch
- the third button is reported through Invert

Fortunately, before entering eraser mode, (so Invert = 1),
the tablet always sends an out-of-proximity event.
So we can detect that single event and:
- if there was none but the invert bit was toggled: this is the
  third button
- if there was this out-of-proximity event, we are entering
  eraser mode, and we will until the next out-of-proximity.

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-8-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

When using the XBox Wireless Controller Elite 2 over Bluetooth,
the device exports the paddle on the back of the device as a single
bitfield value of usage "Assign Selection".

The kernel doesn't process those usages properly and report KEY_UNKNOWN
for it.

SDL doesn't know how to interprete that KEY_UNKNOWN and thus ignores the
paddles.

Given that over USB the kernel uses BTN_TRIGGER_HAPPY[5-8], we
can tweak the report descriptor to make the kernel interprete it properly:
- we need an application collection of gamepad (so we have to close the
  current Consumer Control one)
- we need to change the usage to be buttons from 0x15 to 0x18

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-7-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

This pen is compatible with multiple Wacom tablets, but we only add support
for the Intuos Pro 2 M, as this is the one our user reported the bug
against.

We can not generically add all compatible Wacom tablets as we are
writing the offsets by hand.

The point of this HID-BPF program is to work around a firmware limitation
where the pressure is repeated every other report.
Given that we know this will happen, we can change the first new pressure
information with the mean compared to the previous one. This way we
smooth the incoming pressure without losing information.

Cc: Ping Cheng <pinglinux@gmail.com>
Cc: Jason Gerecke <killertofu@gmail.com>
Cc: Aaron Armstrong Skomra <skomra@gmail.com>
Cc: Joshua Dickens <Joshua@joshua-dickens.com>
Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-6-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

Allows to export more than 5 buttons on this 12 buttons mouse.

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-5-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

Duplicate of commit 0db11735 ("HID: add quirk for 03f0:464a HP Elite
Presenter Mouse"), but in a slightly better way.

This time we actually change the application collection, making clearer
for userspace what the second mouse is.

Note that having both hid-quirks fix and this HID-BPF fix is not a
problem at all.

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-4-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

Same problem than the Artist 24: the second button on the pen is treated
like an eraser.
But the problem is even worse this time. There is an actual eraser at
the tail of the pen.

The compensation of the coordinates was done by Martin
Signed-off-by: Martin Sivak <mars@montik.net>
Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-3-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

This commit adds a fix for XPPen Artist 24 where the second button on
the pen is used as an eraser.

It's a "feature" from Microsoft, but it turns out that it's actually
painful for artists. So we ship here a HID-BPF program that turns this
second button into an actual button.

Note that the HID-BPF program is not directly loaded by the kernel itself
but by udev-hid-bpf[0]. But having the sources here allows us to also
integrate tests into tools/testing/selftests/hid to ensure the HID-BPF
program are actually tested.

[0] https://gitlab.freedesktop.org/libevdev/udev-hid-bpf

Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-2-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

Turns out that the code can handle a greater range, but the data stored
can not. This is problematic on the Raptor Mach 2 joystick which
logical max is 239. The kernel interprets it as `-15` and thus ignores
the Hat Switch handling.

Link: https://gitlab.freedesktop.org/libevdev/udev-hid-bpf/-/issues/17
Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-1-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

Reported by linux-next:
After merging the hid tree, today's linux-next build (x86_64 allmodconfig)
failed like this:

x86_64-linux-gnu-ld: vmlinux.o: in function `hid_bpf_input_report':
(.text+0x1c75181): undefined reference to `hid_input_report'

Caused by commit 9be50ac3 ("HID: bpf: allow to inject HID event
from BPF")

I just forgot to put the indirection in place.

Link: https://lore.kernel.org/linux-kernel/20240411105131.7830f966@canb.auug.org.au/
Fixes: 9be50ac3 ("HID: bpf: allow to inject HID event from BPF")
Link: https://lore.kernel.org/r/20240411-fix-hid-bpf-v1-1-4ae913031a8c@kernel.orgSigned-off-by: Benjamin Tissoires <bentiss@kernel.org>

Export the sleepable kfuncs we have on HID-BPF in tracing bpf programs,
but with the condition of being used in a sleepable context.
This allows to use the bpf_timer when used in a sleepable context
through bpf_timer_set_sleepable_cb() and initiate work from a device event.

Link: https://lore.kernel.org/r/20240315-b4-hid-bpf-new-funcs-v4-7-079c282469d3@kernel.orgSigned-off-by: Benjamin Tissoires <bentiss@kernel.org>

Usual way of testing, we call the function and ensures we receive
the event

Link: https://lore.kernel.org/r/20240315-b4-hid-bpf-new-funcs-v4-6-079c282469d3@kernel.orgSigned-off-by: Benjamin Tissoires <bentiss@kernel.org>

It can be interesting to inject events from BPF as if the event were
to come from the device.
For example, some multitouch devices do not all the time send a proximity
out event, and we might want to send it for the physical device.

Compared to uhid, we can now inject events on any physical device, not
just uhid virtual ones.

Link: https://lore.kernel.org/r/20240315-b4-hid-bpf-new-funcs-v4-5-079c282469d3@kernel.orgSigned-off-by: Benjamin Tissoires <bentiss@kernel.org>

This time we need to ensure uhid receives it, thus the new mutex and
condition.

Link: https://lore.kernel.org/r/20240315-b4-hid-bpf-new-funcs-v4-4-079c282469d3@kernel.orgSigned-off-by: Benjamin Tissoires <bentiss@kernel.org>

It's always a good idea to have KASAN in tests.

Link: https://lore.kernel.org/r/20240315-b4-hid-bpf-new-funcs-v4-3-079c282469d3@kernel.orgSigned-off-by: Benjamin Tissoires <bentiss@kernel.org>

We currently only export hid_hw_raw_request() as a BPF kfunc.
However, some devices require an explicit write on the Output Report
instead of the use of the control channel.

So also export hid_hw_output_report to BPF

Link: https://lore.kernel.org/r/20240315-b4-hid-bpf-new-funcs-v4-2-079c282469d3@kernel.orgSigned-off-by: Benjamin Tissoires <bentiss@kernel.org>

No code change, just move down the hid_bpf_get_data() kfunc definition
so we have only one block of __bpf_kfunc_start/end_defs()

Link: https://lore.kernel.org/r/20240315-b4-hid-bpf-new-funcs-v4-1-079c282469d3@kernel.orgSigned-off-by: Benjamin Tissoires <bentiss@kernel.org>

Pull HID updates from Jiri Kosina:

 - support for the following Bluetooth devices from Samsung: Samsung
   wireless {Keyboard, GamePad, Action Mouse, Book Cover, Universal
   Keyboard, HOGP Keyboard} (Sandeep C S)

 - second version of code for applying proper quirk depending on
   firmware version for lenovo/cptkbd (Mikhail Khvainitski)

 - lenovo/cptkbd firmware-dependent quirk (Mikhail Khvainitski)

 - assorted fixes and optimizations for amd-sfh (Basavaraj Natikar)

 - dead code and dead data structures removal (Jiri Slaby, Jiapeng
   Chong)

* tag 'hid-for-linus-2024031301' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (25 commits)
  HID: amd_sfh: Set the AMD SFH driver to depend on x86
  HID: input: avoid polling stylus battery on Chromebook Pompom
  HID: amd_sfh: Extend MP2 register access to SFH
  HID: amd_sfh: Improve boot time when SFH is available
  HID: amd_sfh: Avoid disabling the interrupt
  HID: amd_sfh: Update HPD sensor structure elements
  HID: amd_sfh: Increase sensor command timeout
  HID: intel-ish-hid: ipc: Add Arrow Lake PCI device ID
  HID: nintendo: Remove some unused functions
  HID: hid-prodikeys: remove struct pk_device
  HID: hid-prodikeys: remove unused struct pcmidi_snd members
  HID: hid-multitouch: remove unused mt_application::dev_time
  HID: hid-lg3ff: remove unused struct lg3ff_device
  HID: protect hid_device::bpf by CONFIG_HID_BPF
  HID: wacom: remove unused hid_data::pressure
  HID: apple: remove unused members from struct apple_sc_backlight
  HID: wacom: Clean up use of struct->wacom_wac
  HID: samsung: Add Samsung wireless bookcover and universal keyboard support
  HID: samsung: Add Samsung wireless action mouse support
  HID: samsung: Add Samsung wireless gamepad support
  ...

Merge tag 'auxdisplay-v6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay

Pull auxdisplay updates from Andy Shevchenko:

 - New driver for GPIO based 7-segment LED display (Chris Packham)

 - New driver for Maxim MAX6958/6959 I²C 7-segment LED display
   controller

 - Refactor linedisp library to make the above happen

 - Update Holtek HT16k33 driver to follow the linedisp refactoring

 - Convert .remove to return void in platform drivers (Uwe Kleine-König)

 - Fix DT schemas (Krzysztof Kozlowski)

 - Refresh MAINTAINERS database

* tag 'auxdisplay-v6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay: (27 commits)
  auxdisplay: img-ascii-lcd: Convert to platform remove callback returning void
  auxdisplay: hd44780: Convert to platform remove callback returning void
  auxdisplay: cfag12864bfb: Convert to platform remove callback returning void
  auxdisplay: seg-led-gpio: Import linedisp namespace
  dt-bindings: auxdisplay: Add bindings for generic 7-segment LED
  auxdisplay: Add 7-segment LED display driver
  auxdisplay: Add driver for MAX695x 7-segment LED controllers
  dt-bindings: auxdisplay: Add Maxim MAX6958/6959
  auxdisplay: ht16k33: Drop struct ht16k33_seg
  auxdisplay: ht16k33: Switch to use line display character mapping
  auxdisplay: ht16k33: Define a few helper macros
  auxdisplay: ht16k33: Move ht16k33_linedisp_ops down
  auxdisplay: ht16k33: Add default to switch-cases
  auxdisplay: linedisp: Allocate buffer for the string
  auxdisplay: linedisp: Add support for overriding character mapping
  auxdisplay: linedisp: Provide struct linedisp_ops for future extension
  auxdisplay: linedisp: Move exported symbols to a namespace
  auxdisplay: linedisp: Add missing header(s)
  auxdisplay: linedisp: Unshadow error codes in ->store()
  auxdisplay: linedisp: Use unique number for id
  ...

Pull drm updates from Dave Airlie:
 "Highlights are usual, more AMD IP blocks for future hw, i915/xe
  changes, Displayport tunnelling support for i915, msm YUV over DP
  changes, new tests for ttm, but its mostly a lot of stuff all over the
  place from lots of people.

  core:
   - EDID cleanups
   - scheduler error handling fixes
   - managed: add drmm_release_action() with tests
   - add ratelimited drm debug print
   - DPCD PSR early transport macro
   - DP tunneling and bandwidth allocation helpers
   - remove built-in edids
   - dp: Avoid AUX transfers on powered-down displays
   - dp: Add VSC SDP helpers

  cross drivers:
   - use new drm print helpers
   - switch to ->read_edid callback
   - gem: add stats for shared buffers plus updates to amdgpu, i915, xe

  syncobj:
   - fixes to waiting and sleeping

  ttm:
   - add tests
   - fix errno codes
   - simply busy-placement handling
   - fix page decryption

  media:
   - tc358743: fix v4l device registration

  video:
   - move all kernel parameters for video behind CONFIG_VIDEO

  sound:
   - remove <drm/drm_edid.h> include from header

  ci:
   - add tests for msm
   - fix apq8016 runner

  efifb:
   - use copy of global screen_info state

  vesafb:
   - use copy of global screen_info state

  simplefb:
   - fix logging

  bridge:
   - ite-6505: fix DP link-training bug
   - samsung-dsim: fix error checking in probe
   - samsung-dsim: add bsh-smm-s2/pro boards
   - tc358767: fix regmap usage
   - imx: add i.MX8MP HDMI PVI plus DT bindings
   - imx: add i.MX8MP HDMI TX plus DT bindings
   - sii902x: fix probing and unregistration
   - tc358767: limit pixel PLL input range
   - switch to new drm_bridge_read_edid() interface

  panel:
   - ltk050h3146w: error-handling fixes
   - panel-edp: support delay between power-on and enable; use put_sync
     in unprepare; support Mediatek MT8173 Chromebooks, BOE NV116WHM-N49
     V8.0, BOE NV122WUM-N41, CSO MNC207QS1-1 plus DT bindings
   - panel-lvds: support EDT ETML0700Z9NDHA plus DT bindings
   - panel-novatek: FRIDA FRD400B25025-A-CTK plus DT bindings
   - add BOE TH101MB31IG002-28A plus DT bindings
   - add EDT ETML1010G3DRA plus DT bindings
   - add Novatek NT36672E LCD DSI plus DT bindings
   - nt36523: support 120Hz timings, fix includes
   - simple: fix display timings on RK32FN48H
   - visionox-vtdr6130: fix initialization
   - add Powkiddy RGB10MAX3 plus DT bindings
   - st7703: support panel rotation plus DT bindings
   - add Himax HX83112A plus DT bindings
   - ltk500hd1829: add support for ltk101b4029w and admatec 9904370
   - simple: add BOE BP082WX1-100 8.2" panel plus DT bindungs

  panel-orientation-quirks:
   - GPD Win Mini

  amdgpu:
   - Validate DMABuf imports in compute VMs
   - Add RAS ACA framework
   - PSP 13 fixes
   - Misc code cleanups
   - Replay fixes
   - Atom interpretor PS, WS bounds checking
   - DML2 fixes
   - Audio fixes
   - DCN 3.5 Z state fixes
   - Remove deprecated ida_simple usage
   - UBSAN fixes
   - RAS fixes
   - Enable seq64 infrastructure
   - DC color block enablement
   - Documentation updates
   - DC documentation updates
   - DMCUB updates
   - ATHUB 4.1 support
   - LSDMA 7.0 support
   - JPEG DPG support
   - IH 7.0 support
   - HDP 7.0 support
   - VCN 5.0 support
   - SMU 13.0.6 updates
   - NBIO 7.11 updates
   - SDMA 6.1 updates
   - MMHUB 3.3 updates
   - DCN 3.5.1 support
   - NBIF 6.3.1 support
   - VPE 6.1.1 support

  amdkfd:
   - Validate DMABuf imports in compute VMs
   - SVM fixes
   - Trap handler updates and enhancements
   - Fix cache size reporting
   - Relocate the trap handler

  radeon:
   - Atom interpretor PS, WS bounds checking
   - Misc code cleanups

  xe:
   - new query for GuC submission version
   - Remove unused persistent exec_queues
   - Add vram frequency sysfs attributes
   - Add the flag XE_VM_BIND_FLAG_DUMPABLE
   - Drop pre-production workarounds
   - Drop kunit tests for unsupported platforms
   - Start pumbling SR-IOV support with memory based interrupts for VF
   - Allow to map BO in GGTT with PAT index corresponding to XE_CACHE_UC
     to work with memory based interrupts
   - Add GuC Doorbells Manager as prep work SR-IOV
   - Implement additional workarounds for xe2 and MTL
   - Program a few registers according to perfomance guide spec for Xe2
   - Fix remaining 32b build issues and enable it back
   - Fix build with CONFIG_DEBUG_FS=n
   - Fix warnings from GuC ABI headers
   - Introduce Relay Communication for SR-IOV for VF <-> GuC <-> PF
   - Release mmap mappings on rpm suspend
   - Disable mid-thread preemption when not properly supported by
     hardware
   - Fix xe_exec by reserving extra fence slot for CPU bind
   - Fix xe_exec with full long running exec queue
   - Canonicalize addresses where needed for Xe2 and add to devcoredum
   - Toggle USM support for Xe2
   - Only allow 1 ufence per exec / bind IOCTL
   - Add GuC firmware loading for Lunar Lake
   - Add XE_VMA_PTE_64K VMA flag

  i915:
   - Add more ADL-N PCI IDs
   - Enable fastboot also on older platforms
   - Early transport for panel replay and PSR
   - New ARL PCI IDs
   - DP TPS4 PHY test pattern support
   - Unify and improve VSC SDP for PSR and non-PSR cases
   - Refactor memory regions and improve debug logging
   - Rework global state serialization
   - Remove unused CDCLK divider fields
   - Unify HDCP connector logging format
   - Use display instead of graphics version in display code
   - Move VBT and opregion debugfs next to the implementation
   - Abstract opregion interface, use opaque type
   - MTL fixes
   - HPD handling fixes
   - Add GuC submission interface version query
   - Atomically invalidate userptr on mmu-notifier
   - Update handling of MMIO triggered reports
   - Don't make assumptions about intel_wakeref_t type
   - Extend driver code of Xe_LPG to Xe_LPG+
   - Add flex arrays to struct i915_syncmap
   - Allow for very slow HuC loading
   - DP tunneling and bandwidth allocation support

  msm:
   - Correct bindings for MSM8976 and SM8650 platforms
   - Start migration of MDP5 platforms to DPU driver
   - X1E80100 MDSS support
   - DPU:
      - Improve DSC allocation, fixing several important corner cases
      - Add support for SDM630/SDM660 platforms
      - Simplify dpu_encoder_phys_ops
      - Apply fixes targeting DSC support with a single DSC encoder
      - Apply fixes for HCTL_EN timing configuration
      - X1E80100 support
      - Add support for YUV420 over DP
   - GPU:
      - fix sc7180 UBWC config
      - fix a7xx LLC config
      - new gpu support: a305B, a750, a702
      - machine support: SM7150 (different power levels than other a618)
      - a7xx devcoredump support

  habanalabs:
   - configure IRQ affinity according to NUMA node
   - move HBM MMU page tables inside the HBM
   - improve device reset
   - check extended PCIe errors

  ivpu:
   - updates to firmware API
   - refactor BO allocation

  imx:
   - use devm_ functions during init

  hisilicon:
   - fix EDID includes

  mgag200:
   - improve ioremap usage
   - convert to struct drm_edid
   - Work around PCI write bursts

  nouveau:
   - disp: use kmemdup()
   - fix EDID includes
   - documentation fixes

  qaic:
   - fixes to BO handling
   - make use of DRM managed release
   - fix order of remove operations

  rockchip:
   - analogix_dp: get encoder port from DT
   - inno_hdmi: support HDMI for RK3128
   - lvds: error-handling fixes

  ssd130x:
   - support SSD133x plus DT bindings

  tegra:
   - fix error handling

  tilcdc:
   - make use of DRM managed release

  v3d:
   - show memory stats in debugfs
   - Support display MMU page size

  vc4:
   - fix error handling in plane prepare_fb
   - fix framebuffer test in plane helpers

  virtio:
   - add venus capset defines

  vkms:
   - fix OOB access when programming the LUT
   - Kconfig improvements

  vmwgfx:
   - unmap surface before changing plane state
   - fix memory leak in error handling
   - documentation fixes
   - list command SVGA_3D_CMD_DEFINE_GB_SURFACE_V4 as invalid
   - fix null-pointer deref in execbuf
   - refactor display-mode probing
   - fix fencing for creating cursor MOBs
   - fix cursor-memory lifetime

  xlnx:
   - fix live video input for ZynqMP DPSUB

  lima:
   - fix memory leak

  loongson:
   - fail if no VRAM present

  meson:
   - switch to new drm_bridge_read_edid() interface

  renesas:
   - add RZ/G2L DU support plus DT bindings

  mxsfb:
   - Use managed mode config

  sun4i:
   - HDMI: updates to atomic mode setting

  mediatek:
   - Add display driver for MT8188 VDOSYS1
   - DSI driver cleanups
   - Filter modes according to hardware capability
   - Fix a null pointer crash in mtk_drm_crtc_finish_page_flip

  etnaviv:
   - enhancements for NPU and MRT support"

* tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel: (1420 commits)
  drm/amd/display: Removed redundant @ symbol to fix kernel-doc warnings in -next repo
  drm/amd/pm: wait for completion of the EnableGfxImu message
  drm/amdgpu/soc21: add mode2 asic reset for SMU IP v14.0.1
  drm/amdgpu: add smu 14.0.1 support
  drm/amdgpu: add VPE 6.1.1 discovery support
  drm/amdgpu/vpe: add VPE 6.1.1 support
  drm/amdgpu/vpe: don't emit cond exec command under collaborate mode
  drm/amdgpu/vpe: add collaborate mode support for VPE
  drm/amdgpu/vpe: add PRED_EXE and COLLAB_SYNC OPCODE
  drm/amdgpu/vpe: add multi instance VPE support
  drm/amdgpu/discovery: add nbif v6_3_1 ip block
  drm/amdgpu: Add nbif v6_3_1 ip block support
  drm/amdgpu: Add pcie v6_1_0 ip headers (v5)
  drm/amdgpu: Add nbif v6_3_1 ip headers (v5)
  arch/powerpc: Remove <linux/fb.h> from backlight code
  macintosh/via-pmu-backlight: Include <linux/backlight.h>
  fbdev/chipsfb: Include <linux/backlight.h>
  drm/etnaviv: Restore some id values
  drm/amdkfd: make kfd_class constant
  drm/amdgpu: add ring timeout information in devcoredump
  ...

Pull ext2, isofs, udf, and quota updates from Jan Kara:
 "A lot of material this time:

   - removal of a lot of GFP_NOFS usage from ext2, udf, quota (either it
     was legacy or replaced with scoped memalloc_nofs_*() API)

   - removal of BUG_ONs in quota code

   - conversion of UDF to the new mount API

   - tightening quota on disk format verification

   - fix some potentially unsafe use of RCU pointers in quota code and
     annotate everything properly to make sparse happy

   - a few other small quota, ext2, udf, and isofs fixes"

* tag 'fs_for_v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (26 commits)
  udf: remove SLAB_MEM_SPREAD flag usage
  quota: remove SLAB_MEM_SPREAD flag usage
  isofs: remove SLAB_MEM_SPREAD flag usage
  ext2: remove SLAB_MEM_SPREAD flag usage
  ext2: mark as deprecated
  udf: convert to new mount API
  udf: convert novrs to an option flag
  MAINTAINERS: add missing git address for ext2 entry
  quota: Detect loops in quota tree
  quota: Properly annotate i_dquot arrays with __rcu
  quota: Fix rcu annotations of inode dquot pointers
  isofs: handle CDs with bad root inode but good Joliet root directory
  udf: Avoid invalid LVID used on mount
  quota: Fix potential NULL pointer dereference
  quota: Drop GFP_NOFS instances under dquot->dq_lock and dqio_sem
  quota: Set nofs allocation context when acquiring dqio_sem
  ext2: Remove GFP_NOFS use in ext2_xattr_cache_insert()
  ext2: Drop GFP_NOFS use in ext2_get_blocks()
  ext2: Drop GFP_NOFS allocation from ext2_init_block_alloc_info()
  udf: Remove GFP_NOFS allocation in udf_expand_file_adinicb()
  ...

Pull fsnotify updates from Jan Kara:

 - fsnotify optimizations to reduce cost of fsnotify when nobody is
   watching

 - fix longstanding wart that system could not be suspended when some
   process was waiting for response to fanotify permission event

 - some spelling fixes

* tag 'fsnotify_for_v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fanotify: allow freeze when waiting response for permission events
  fanotify: Fix misspelling of "writable"
  fsnotify: Fix misspelling of "writable"
  inotify: Fix misspelling of "writable"
  fsnotify: Add fsnotify_sb_has_watchers() helper
  fsnotify: optimize the case of no parent watcher

Pull xfs updates from Chandan Babu:

 - Online repair updates:
    - More ondisk structures being repaired:
        - Inode's mode field by trying to obtain file type value from
          the a directory entry
        - Quota counters
        - Link counts of inodes
        - FS summary counters
        - Support for in-memory btrees has been added to support repair
          of rmap btrees
    - Misc changes:
        - Report corruption of metadata to the health tracking subsystem
        - Enable indirect health reporting when resources are scarce
        - Reduce memory usage while repairing refcount btree
        - Extend "Bmap update" intent item to support atomic extent
          swapping on the realtime device
        - Extend "Bmap update" intent item to support extended attribute
          fork and unwritten extents
    - Code cleanups:
        - Bmap log intent
        - Btree block pointer checking
        - Btree readahead
        - Buffer target
        - Symbolic link code

 - Remove mrlock wrapper around the rwsem

 - Convert all the GFP_NOFS flag usages to use the scoped
   memalloc_nofs_save() API instead of direct calls with the GFP_NOFS

 - Refactor and simplify xfile abstraction. Lower level APIs in shmem.c
   are required to be exported in order to achieve this

 - Skip checking alignment constraints for inode chunk allocations when
   block size is larger than inode chunk size

 - Do not submit delwri buffers collected during log recovery when an
   error has been encountered

 - Fix SEEK_HOLE/DATA for file regions which have active COW extents

 - Fix lock order inversion when executing error handling path during
   shrinking a filesystem

 - Remove duplicate ifdefs

* tag 'xfs-6.9-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (183 commits)
  xfs: shrink failure needs to hold AGI buffer
  mm/shmem.c: Use new form of *@param in kernel-doc
  kernel-doc: Add unary operator * to $type_param_ref
  xfs: use kvfree() in xlog_cil_free_logvec()
  xfs: xfs_btree_bload_prep_block() should use __GFP_NOFAIL
  xfs: fix scrub stats file permissions
  xfs: fix log recovery erroring out on refcount recovery failure
  xfs: move symlink target write function to libxfs
  xfs: move remote symlink target read function to libxfs
  xfs: move xfs_symlink_remote.c declarations to xfs_symlink_remote.h
  xfs: xfs_bmap_finish_one should map unwritten extents properly
  xfs: support deferred bmap updates on the attr fork
  xfs: support recovering bmap intent items targetting realtime extents
  xfs: add a realtime flag to the bmap update log redo items
  xfs: add a xattr_entry helper
  xfs: fix xfs_bunmapi to allow unmapping of partial rt extents
  xfs: move xfs_bmap_defer_add to xfs_bmap_item.c
  xfs: reuse xfs_bmap_update_cancel_item
  xfs: add a bi_entry helper
  xfs: remove xfs_trans_set_bmap_flags
  ...

- small cleanup of struct->wacom_wac usage (Tatsunosuke Tobita)

- removal of unused data structures all over the place (Jiri Slaby)

- support for the following Bluetooth devices (Sandeep C S):

        Samsung wireless Keyboard
        Samsung wireless GamePad
        Samsung Wireless Action Mouse
        Samsung Wireless Book Cover
        Samsung Wireless Universal Keyboard
        Samsung Wireless HOGP Keyboard
Signed-off-by: Jiri Kosina <jkosina@suse.com>

- dead code removal in hid-nintendo (Jiapeng Chong)

- 2nd version of code for applying proper quirk depending on firmware version
  for lenovo/cptkbd (Mikhail Khvainitski)

- assorted fixes and optimizations for amd-sfh (Basavaraj Natikar)
Signed-off-by: Jiri Kosina <jkosina@suse.com>

Pull smb client updates from Steve French:

 - fix for folios/netfs data corruption in cifs_extend_writeback

 - additional tracepoint added

 - updates for special files and symlinks: improvements to allow
   selecting use of either WSL or NFS reparse point format on creating
   special files

 - allocation size improvement for cached files

 - minor cleanup patches

 - fix to allow changing the password on remount when password for the
   session is expired.

 - lease key related fixes: caching hardlinked files, deletes of
   deferred close files, and an important fix to better reuse lease keys
   for compound operations, which also can avoid lease break timeouts
   when low on credits

 - fix potential data corruption with write/readdir races

 - compression cleanups and a fix for compression headers

* tag '6.9-rc-smb3-client-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6: (24 commits)
  cifs: update internal module version number for cifs.ko
  smb: common: simplify compression headers
  smb: common: fix fields sizes in compression_pattern_payload_v1
  smb: client: negotiate compression algorithms
  smb3: add dynamic trace point for ioctls
  cifs: Fix writeback data corruption
  smb: client: return reparse type in /proc/mounts
  smb: client: set correct d_type for reparse DFS/DFSR and mount point
  smb: client: parse uid, gid, mode and dev from WSL reparse points
  smb: client: introduce SMB2_OP_QUERY_WSL_EA
  smb: client: Fix a NULL vs IS_ERR() check in wsl_set_xattrs()
  smb: client: add support for WSL reparse points
  smb: client: reduce number of parameters in smb2_compound_op()
  smb: client: fix potential broken compound request
  smb: client: move most of reparse point handling code to common file
  smb: client: introduce reparse mount option
  smb: client: retry compound request without reusing lease
  smb: client: do not defer close open handles to deleted files
  smb: client: reuse file lease key in compound operations
  smb3: update allocation size more accurately on write completion
  ...

As Linus suggested this enables pidfs unconditionally. A key property to
retain is the ability to compare pidfds by inode number (cf. [1]).
That's extremely helpful just as comparing namespace file descriptors by
inode number is. They are used in a variety of scenarios where they need
to be compared, e.g., when receiving a pidfd via SO_PEERPIDFD from a
socket to trivially authenticate a the sender and various other
use-cases.

For 64bit systems this is pretty trivial to do. For 32bit it's slightly
more annoying as we discussed but we simply add a dumb ida based
allocator that gets used on 32bit. This gives the same guarantees about
inode numbers on 64bit without any overflow risk. Practically, we'll
never run into overflow issues because we're constrained by the number
of processes that can exist on 32bit and by the number of open files
that can exist on a 32bit system. On 64bit none of this matters and
things are very simple.

If 32bit also needs the uniqueness guarantee they can simply parse the
contents of /proc/<pid>/fd/<nr>. The uniqueness guarantees have a
variety of use-cases. One of the most obvious ones is that they will
make pidfiles (or "pidfdfiles", I guess) reliable as the unique
identifier can be placed into there that won't be reycled. Also a
frequent request.

Note, I took the chance and simplified path_from_stashed() even further.
Instead of passing the inode number explicitly to path_from_stashed() we
let the filesystem handle that internally. So path_from_stashed() ends
up even simpler than it is now. This is also a good solution allowing
the cleanup code to be clean and consistent between 32bit and 64bit. The
cleanup path in prepare_anon_dentry() is also switched around so we put
the inode before the dentry allocation. This means we only have to call
the cleanup handler for the filesystem's inode data once and can rely
->evict_inode() otherwise.

Aside from having to have a bit of extra code for 32bit it actually ends
up a nice cleanup for path_from_stashed() imho.

Tested on both 32 and 64bit including error injection.

Link: https://github.com/systemd/systemd/pull/31713 [1]
Link: https://lore.kernel.org/r/20240312-dingo-sehnlich-b3ecc35c6de7@braunerSigned-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull modules updates from Luis Chamberlain:
 "Christophe Leroy did most of the work on this release, first with a
  few cleanups on CONFIG_STRICT_KERNEL_RWX and ending with error
  handling for when set_memory_XX() can fail.

  This is part of a larger effort to clean up all these callers which
  can fail, modules is just part of it"

* tag 'modules-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
  module: Don't ignore errors from set_memory_XX()
  lib/test_kmod: fix kernel-doc warnings
  powerpc: Simplify strict_kernel_rwx_enabled()
  modules: Remove #ifdef CONFIG_STRICT_MODULE_RWX around rodata_enabled
  init: Declare rodata_enabled and mark_rodata_ro() at all time
  module: Change module_enable_{nx/x/ro}() to more explicit names
  module: Use set_memory_rox()

Pull EFI updates from Ard Biesheuvel:

 - Measure initrd and command line using the CC protocol if the ordinary
   TCG2 protocol is not implemented, typically on TDX confidential VMs

 - Avoid creating mappings that are both writable and executable while
   running in the EFI boot services. This is a prerequisite for getting
   the x86 shim loader signed by MicroSoft again, which allows the
   distros to install on x86 PCs that ship with EFI secure boot enabled.

 - API update for struct platform_driver::remove()

* tag 'efi-next-for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  virt: efi_secret: Convert to platform remove callback returning void
  x86/efistub: Remap kernel text read-only before dropping NX attribute
  efi/libstub: Add get_event_log() support for CC platforms
  efi/libstub: Measure into CC protocol if TCG2 protocol is absent
  efi/libstub: Add Confidential Computing (CC) measurement typedefs
  efi/tpm: Use symbolic GUID name from spec for final events table
  efi/libstub: Use TPM event typedefs from the TCG PC Client spec

Pull tpm updates from Jarkko Sakkinen:
 "Small bug fixes and device tree updates. No new features"

* tag 'tpmdd-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: tis_i2c: Add compatible string nuvoton,npct75x
  tpm_tis: Add compatible string atmel,at97sc3204
  tpm_tis_spi: Add compatible string atmel,attpm20p
  dt-bindings: tpm: Add compatible string atmel,attpm20p
  tpm,tpm_tis: Avoid warning splat at shutdown
  tpm/tpm_ftpm_tee: fix all kernel-doc warnings