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named initializers
The .driver_data member of the the two struct ssam_device_id arrays were
initialized by list expressions. This isn't easily readable if you don't
work with the Surface System Aggregator core regularily. Using named
initializers is more explicit and thus easier to parse and also more
robust to changes of the struct definition. This robustness is relevant
for a planned change to struct ssam_device_id replacing .driver_data
by an anonymous union.
This change doesn't introduce changes to the compiled ssam_device_id
arrays.
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://patch.msgid.link/4421c8c959452d8a717ebc7cc905ad9c2912680c.1781522576.git.u.kleine-koenig@baylibre.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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On newer Lenovo Yoga devices like the "Yoga 9 2-in-1 14IPH11 - Type 83SE",
the hinge switch WMI query returns extra data in the upper bits
(e.g. 0x50001 laptop mode, 0x50002 tablet mode, ect.).
The driver previously checked for exact matches (0x01 laptop, 0x02 tablet,
ect.) causing newer switches to not work.
Mask the WMI query result to only match the lower byte and ignore upper
bits.
Signed-off-by: Julian Haarmann <julian.haarmann@student.kit.edu>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260614203235.235724-1-julian.haarmann@student.kit.edu
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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set_attribute() populates the security area of the BIOS attribute request
buffer with the current admin password via populate_security_buffer(), then
dumps the whole request buffer with print_hex_dump_bytes(). This can expose
the plaintext admin password in the kernel log.
The same issue was fixed for the password attribute path by
commit d1a196e0a6dc ("platform/x86: dell-wmi-sysman: Don't hex dump
plaintext password data"). Remove the remaining dump from the BIOS
attribute path.
Fixes: e8a60aa7404b ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems")
Cc: stable@vger.kernel.org
Assisted-by: Codex:gpt-5
Signed-off-by: HyeongJun An <sammiee5311@gmail.com>
Link: https://patch.msgid.link/20260614045353.143500-1-sammiee5311@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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MSI Claw devices produce WMI events through the MSI WMI hotkeys GUID for
some of their buttons. When pressed, these cause spam in the kernel. For
the majority of devices these events can be safely ignored as they are
duplicated by the AT Translated Set 2 Keyboard device exposed as an
evdev. For the MSI Claw A8 BZ2EM model's M-Center Menu button (left of
the screen) there is no associated keyboard event, so this event must be
exposed. Map this button to the same scancode produced by the AT
Keyboard device on other models. This does cause double F15 events on
the A1M, 7 AI+ A2VM, and 8 AI+ A2VM, but it appears to be harmless in my
testing.
Signed-off-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260613021654.933618-3-derekjohn.clark@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Reformats msi_wmi_notify() to use a switch statement that reduces nesting
and prepares the function to support additional ACPI types.
Signed-off-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260613021654.933618-2-derekjohn.clark@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Use no_free_ptr() inside dell_wmi_ddv_query_buffer() in order to
be able to use __free() with the result of the WMI call.
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260612173451.467629-5-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The commit message of commit 5fbd827eb9c2 ("platform/x86: dell-wmi: Recognise or support new switches")
states that the ultra performance key contains additional data
after the type and code fields. The event data passed to
dell_wmi_process_key() is already parsed, so "buffer" already
starts after those two fields.
Use the correct index for accessing the first data field to avoid
a potential buffer overread.
Fixes: 5fbd827eb9c2 ("platform/x86: dell-wmi: Recognise or support new switches")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260612173451.467629-4-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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We need to properly clean up the SMBIOS request and the privacy driver
when the module load fails.
Fixes: 8af9fa37b8a3 ("platform/x86: dell-privacy: Add support for Dell hardware privacy")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260612173451.467629-3-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Accessing priv->features_present needs to happen with the list mutex
being held, otherwise priv can be freed at any moment.
Fixes: 8af9fa37b8a3 ("platform/x86: dell-privacy: Add support for Dell hardware privacy")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260612173451.467629-2-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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HP Victus 15-fb0xxx board 8A3D exposes the Victus fan table and accepts
the existing Victus fan-speed WMI control path. Add a DMI match using the
Victus S thermal-profile and fan-control data.
Signed-off-by: Radhey Kalra <radheykalra901@gmail.com>
Link: https://patch.msgid.link/20260615091034.987029-4-radheykalra901@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Use the board-specific .driver_data to describe fan-control support and
fan-speed read callbacks. Existing boards keep the same Victus
fan-control path, but the hwmon code no longer hardcodes that decision
through is_victus_s_thermal_profile().
No functional changes intended.
Signed-off-by: Radhey Kalra <radheykalra901@gmail.com>
Link: https://patch.msgid.link/20260615091034.987029-3-radheykalra901@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The hp_wmi DMI table is about to carry more than thermal-profile data.
Replace the direct thermal_profile_params .driver_data pointers with
hp_wmi_board_params and rename the table/setup helper accordingly.
No functional changes intended.
Signed-off-by: Radhey Kalra <radheykalra901@gmail.com>
Link: https://patch.msgid.link/20260615091034.987029-2-radheykalra901@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The LAPQC71A and LAPQC71B both feature a RGB lightbar with 36
brightness levels per color component. Extend the device descriptor
to supply the maximum brightness of the lightbar and whitelist
both models for UNIWILL_FEATURE_LIGHTBAR.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260530170813.10166-8-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The scmi_notify() function is called from interrupt context to queue
received notification events onto a per-protocol kfifo. When the kfifo
is full, it logs a warning via dev_warn() for every dropped event.
Under conditions where the platform sends a burst of SCMI notifications
faster than the deferred worker can drain the queue, this results in a
flood of dev_warn() calls from IRQ context. Each call acquires the
console lock and may execute blocking console writes, causing the CPU
to be held in interrupt context for an extended period and leading to
observable system stalls.
Fix this by switching to dev_warn_ratelimited() to limit the frequency
of log messages when the notification queue is full. This reduces
console overhead in interrupt context and prevents CPU stalls caused by
excessive logging, while still preserving diagnostic visibility.
Fixes: bd31b249692e ("firmware: arm_scmi: Add notification dispatch and delivery")
Signed-off-by: Pushpendra Singh <pushpendra.singh@oss.qualcomm.com>
Link: https://patch.msgid.link/20260708072339.3021140-1-pushpendra.singh@oss.qualcomm.com
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
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SCMI clock range descriptors report rates as 64-bit values. When handling
a range clock, scmi_clock_determine_rate() rounds the requested rate up to
the next supported step using the SCMI RATE_STEP value.
The current code uses div64_ul() for this calculation. Since div64_ul()
takes an unsigned long divisor, the 64-bit RATE_STEP value can be truncated
on 32-bit builds. In the worst case, a non-zero 64-bit step can be narrowed
to zero before the division.
Store RATE_STEP in a u64, reject a malformed zero step, and use
DIV64_U64_ROUND_UP() so the divisor is handled as a 64-bit value.
This does not change behavior for valid firmware reporting a non-zero step
that fits in unsigned long.
Tested on Xunlong Orange Pi 5 Plus / RK3588 with SCMI over SMC. SCMI
clocks probed successfully before and after the change. SCMI-backed CPU
clocks were exercised through cpufreq-dt by switching each CPU policy
between its lowest and highest available OPP.
Fixes: ecde921eb460 ("firmware: arm_scmi: Add clock determine_rate operation")
Signed-off-by: Steve Dunnagan <sdunnaga@redhat.com>
Link: https://patch.msgid.link/20260701195923.444270-1-sdunnaga@redhat.com
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
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Register an ACPI hook in the ACPI interrupt management code for GICv5 to
retrieve the ACPI interrupt controller handle (if any) of the controller
handling a specific GSI, by updating the acpi_set_irq_model() call with
the gic_v5_get_gsi_handle() function pointer parameter.
gicv5_get_gsi_handle() allows ACPI core to detect the ACPI handle
of the controller that manages a specific GSI interrupt.
Update the IWB driver to clear device dependencies in ACPI core once the
IWB driver has probed.
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Acked-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-7-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Implement an IORT ACPI hook to retrieve the acpi_handle of the interrupt
controller handling a specific GSI (if any, on GICv5 systems only the IWB
is represented in firmware with an ACPI device object) and add the IWB to
the list of devices whose dependencies can be detected (and cleared) in
ACPI core to guarantee that probe dependencies for the IWB can be
satisfied.
Enable autodep detection for arm64 by adding the arch_acpi_add_auto_dep()
callback in the ACPI IORT driver.
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-6-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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RISC-V implements arch code to detect probe dependencies for devices and
the interrupt controller the devices GSIs are routed to.
The code itself is arch agnostic apart from an arch specific helper
function required to retrieve the acpi_handle of the interrupt controller
that manages the device GSI interrupt.
In order to enable IRQ probe dependencies detection on other architectures,
move RISC-V IRQ probe dependency detection code to generic ACPI IRQ code.
Allow interrupt controller drivers to register an arch specific function to
determine the acpi_handle for a specific GSI number to use the mechanism if
needed by the respective interrupt controller drivers.
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Sunil V L <sunilvl@oss.qualcomm.com>
Tested-by: Sunil V L <sunilvl@oss.qualcomm.com>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-5-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The loop in riscv_acpi_add_prt_dep() includes error conditions that are
handled in a dubious - if not outright wrong - way, by continuining the
loop (which skips and misses the entry pointer update to point to the next
entry).
Rewrite the loop as a for loop (that handles the continuation correctly)
and wrap the condition and update statements using helper functions to make
it cleaner.
Fixes: 1b173cc4bfcd ("ACPI: RISC-V: Implement function to add implicit dependencies")
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Tested-by: Sunil V L <sunilvl@oss.qualcomm.com>
Reviewed-by: Sunil V L <sunilvl@oss.qualcomm.com>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-4-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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In riscv_acpi_add_prt_dep(), the acpi_get_handle() call can fail which
would leave link_handle uninitialized.
Fix it by checking the acpi_get_handle() return status and skip the entry
if it fails.
Fixes: 1b173cc4bfcd ("ACPI: RISC-V: Implement function to add implicit dependencies")
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Tested-by: Sunil V L <sunilvl@oss.qualcomm.com>
Reviewed-by: Sunil V L <sunilvl@oss.qualcomm.com>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-3-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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In riscv_acpi_add_irq_dep() the main loop condition would currently stop
the loop if an interrupt descriptor contains an interrupt for which the
respective GSI handle is NULL, which is not correct because subsequent
interrupts in the interrupt descriptor might still have a GSI dependency
that must not be skipped.
Rework riscv_acpi_add_irq_dep() and the riscv_acpi_irq_get_dep() call chain
to fix it - by not forcing the loop to stop in order to guarantee
dependency detection for all the interrupt entries in the CRS descriptor.
Fixes: 1b173cc4bfcd ("ACPI: RISC-V: Implement function to add implicit dependencies")
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Tested-by: Sunil V L <sunilvl@oss.qualcomm.com>
Reviewed-by: Sunil V L <sunilvl@oss.qualcomm.com>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-2-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The try_harder contiguous fallback could return a range whose start
offset did not match the caller's min_block_size. When a candidate's
start is misaligned, realign it: free the misaligned run and reallocate
exactly @size at the next lower min_block_size boundary. This keeps the
returned size unchanged with no surplus to trim, and rejects the request
only when no aligned candidate fits.
v2: align misaligned candidates down to min_block_size instead of
bailing out, for both the RHS and LHS paths (Matthew).
Fixes: 0a1844bf0b53 ("drm/buddy: Improve contiguous memory allocation")
Suggested-by: Christian König <christian.koenig@amd.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Timur Kristóf <timur.kristof@gmail.com>
Cc: stable@vger.kernel.org
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Tested-by: John Olender <john.olender@gmail.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Link: https://patch.msgid.link/20260709131050.1022759-1-Arunpravin.PaneerSelvam@amd.com
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The driver has an OF match table wired to .of_match_table, but does
not export the table with MODULE_DEVICE_TABLE().
Add the missing MODULE_DEVICE_TABLE(of, ...) entry so module alias
information is generated for OF based module autoloading.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Aksh Garg <a-garg7@ti.com>
Link: https://patch.msgid.link/20260704122835.14277-1-pengpeng@iscas.ac.cn
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callback
After calling drm_sched_job_cleanup(), the free job callback releases its
reference to the job, where the act of dropping the last reference will
also call the drm_sched_job_cleanup() helper.
We can therefore remove the redundant call from the .free_job callback.
But we have to leave the "if (job->base.s_fence)" guard in job_release(),
since that one not only handles the above described double cleanup, but
also deals with all job cleanup paths which happen before the point the
job was armed.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Steven Price <steven.price@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
Link: https://lore.kernel.org/r/20260702143745.79293-2-tvrtko.ursulin@igalia.com
[tursulin: fixup commit text s/it's/its/]
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The core mechanism of drm_gpusvm is HMM, which is fundamentally an
MM side subsystem. A drm_device, enters the picture on the device side at
DMA mapping / GPU bind.
So move struct drm_device from struct drm_gpusvm in drm_gpusvm. Let
drm_gpusvm keep its core neutral and leave device side decisions to
the driver. Make drm_gpusvm a pure MM level object.
- Move the drm_device from struct drm_gpusvm. drm_device now stored in
drm_gpusvm_pages.
- Drop the drm parameter from drm_gpusvm_init()
- Update the xe call sites in xe_svm_init() and other callers.
drm_device does not disappear from the framework, it is
relocated onto each drm_gpusvm_pages where DMA actually happens.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-6-honghuan@amd.com
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Since the pages the physical pages and MM VA range has been abstractly
separated. Unbinding a single form of physical page from the MM VA
range, brings flexibility to the drm gpu SVM framework, transfer the
way of management of MM and device physical pages to the driver layer.
framework's range embedded pages object and its range level wrappers
have no users left. Remove the following:
- Drop pages in drm_gpusvm_range.
- Drop drm_gpusvm_range_pages_valid(), drm_gpusvm_range_get_pages()
and drm_gpusvm_range_unmap_pages(); drivers should use the
drm_gpusvm_pages helpers (drm_gpusvm_pages_valid,
drm_gpusvm_get_pages, drm_gpusvm_unmap_pages) directly on a
pages object they own.
- Drop the notifier_seq seeding in drm_gpusvm_range_alloc();
drivers initialise notifier_seq on their own pages object.
Update the DOC: overview to match the new model: document struct
drm_gpusvm_pages and the driver owned 1:1 / N:1 layouts, and rewrite the
usage examples to operate on a driver embedded pages object by the
drm_gpusvm_pages helpers instead of the removed range level wrappers.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-5-honghuan@amd.com
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With drm_gpusvm_pages now self contained, make xe stop relying
on the drm_gpusvm_range pages and take responsibility for the page
lifecycle on the driver side.
Driver side (xe):
- Embed struct drm_gpusvm_pages in xe_svm_range and route all
xe accesses through it instead of range->base.pages.
- Initialise the embedded pages via drm_gpusvm_init_pages(), which
binds the owning &xe->drm up front, and take over the page
lifecycle: xe_svm_range_get_pages() calls drm_gpusvm_get_pages()
directly; the notifier event_end and xe_svm_range_free() paths
drive unmap/free on the embedded pages object.
- Convert the open-coded userptr pages init in xe_userptr_setup()
to the same drm_gpusvm_init_pages() helper.
- Switch xe_svm_range_pages_valid() to drm_gpusvm_pages_valid().
Framework side (drm_gpusvm):
- Add a small inline drm_gpusvm_init_pages() helper that records the
owning drm_device and initialises the per-pages state, giving
drivers a single hook to extend.
- Export drm_gpusvm_pages_valid() to let driver owned pages
can query mapping state without going through a range.
- Lifecycle change: drm_gpusvm_range_remove() no longer *triggers*
unmap/free of the embedded pages. The unmap/free logic itself stays
in the framework -- drm_gpusvm_free_pages() still performs the DMA
unmap (as an idempotent backstop) and frees the dma_addr array --
but the driver now owns *when* it runs, since the driver owns the
drm_gpusvm_pages object.
Side effect / contract: a driver that owns a drm_gpusvm_pages is now
responsible for its lifecycle: drm_gpusvm_init_pages() before first
use, and drm_gpusvm_free_pages() when the owner goes away. Xe does the
latter from its ops->range_free callback, which the framework invokes
once the range refcount drops to zero in drm_gpusvm_range_remove().
The timely DMA unmap for the IOMMU security model still happens in the
notifier invalidate path via drm_gpusvm_unmap_pages(); the unmap inside
drm_gpusvm_free_pages() is only a backstop for pages that were never
invalidated.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-4-honghuan@amd.com
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drm_gpusvm_pages is the layer that actually represents physical
pages/mappings it owns the dma_addr array, the dma_iova_state...
With the previous patch, so drm_gpusvm_pages is now strictly about
physical pages and their DMA view.
Since now the drm_gpusvm_pages instance is inherently bound to one
specific drm_device, make that ownership explicit by giving
drm_gpusvm_pages its own drm_device handle, and drive all DMA through
it instead of through the gpusvm:
- Add drm to struct drm_gpusvm_pages and route all DMA in
drm_gpusvm_get_pages() / __drm_gpusvm_unmap_pages() through
svm_pages->drm instead of gpusvm->drm.
- Bind svm_pages->drm where the pages object is initialised
(drm_gpusvm_range_alloc() and the xe userptr setup) and require
it to be set on entry to drm_gpusvm_get_pages(); the dma device
is immutable for the lifetime of the pages instance. A later
patch introduces drm_gpusvm_init_pages() to centralise this.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-3-honghuan@amd.com
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drm_gpusvm_pages_flags currently mixes two status:
- MM / virtual-address state: whether the range has been (partially)
unmapped by the Linux MM, these follow the lifetime of the VMA and
are a single per VA range fact.
- Device mapping state: has_devmem_pages and has_dma_mapping,
which describe the current page mapping status held by device
itself.
Keeping both on the pages object blurs the semantics of the
abstraction of pages and VA range. So move the MM state flags onto the
range, and keep drm_gpusvm_pages_flags strictly for mapping state.
- Introduce drm_gpusvm_range_flags { migrate_devmem, unmapped,
partial_unmap } on drm_gpusvm_range.
- Shrink drm_gpusvm_pages_flags to just has_devmem_pages and
has_dma_mapping.
Side effect: drivers now need to check the unmap flags in the driver
itself to avoid handling the unmapped pages.
Mirror that bit onto drm_gpusvm_pages so the framework can
still short circuit drm_gpusvm_get_pages() under the notifier lock, and
make drm_gpusvm_range_set_unmapped() propagate it to the backing pages.
This follows Matt's review fixup for the v0 series; see the Link below.
Like drm_gpusvm_pages_flags, drm_gpusvm_range_flags unions its bits with
a u16 __flags member. Build the new value in a local copy and publish it
with a single WRITE_ONCE() on __flags, and have the lockless readers use
READ_ONCE(), so concurrent bitfield access stays data-race free and KCSAN
quiet.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://gitlab.freedesktop.org/mbrost/xe-kernel-driver-svn-perf-6-15-2025/-/commit/623f6a50c037d9e44f6c9fbe6859a0ba7ad50177
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-2-honghuan@amd.com
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macsec_encrypt() reads the Ethernet header via eth_hdr(skb)
(skb->head + skb->mac_header) to memmove() the 12 source/destination MAC
bytes forward and make room for the SecTAG.
On the AF_PACKET SOCK_RAW + PACKET_QDISC_BYPASS transmit path the skb
reaches the macsec ndo_start_xmit() with the MAC header unset, so
eth_hdr(skb) resolves to skb->head + (u16)~0 and the read is out of
bounds: a 12-byte heap over-read that is also emitted on the wire as the
frame's outer source/destination MAC. KASAN reports a slab-out-of-bounds
read in macsec_start_xmit() on 6.0; on current mainline a CONFIG_DEBUG_NET
build flags it as an unset mac header in skb_mac_header().
On the TX path the L2 header is at skb->data, so use skb_eth_hdr(), added
by commit 96cc4b69581d ("macvlan: do not assume mac_header is set in
macvlan_broadcast()") for exactly this purpose.
Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver")
Cc: stable@vger.kernel.org
Signed-off-by: Daehyeon Ko <4ncienth@gmail.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20260703083634.2035145-1-4ncienth@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The loopback move_data() performs a memcpy into the registered DMB
without checking whether offset + size exceeds the DMB length. Unlike
real ISM hardware, which enforces memory region bounds natively, the
software loopback has no such protection.
A peer-supplied out-of-bounds offset or oversized write would result in
an OOB write past the allocated kernel buffer. Add an explicit bounds
check before the memcpy to reject such requests with -EINVAL.
Fixes: f7a22071dbf3 ("net/smc: implement DMB-related operations of loopback-ism")
Cc: stable@vger.kernel.org
Reported-by: Federico Kirschbaum <federico.kirschbaum@xbow.com>
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Reported-by: Baul Lee <baul.lee@xbow.com>
Link: https://patch.msgid.link/20260707074318.1448662-1-dust.li@linux.alibaba.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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As correctly pointed out by Jay Vosburgh,
"This comment dates to sometime before git, when it was common for
network device drivers to lack the ability to change the MAC while the
interface is up. To the best of my knowledge, that isn't a issue
today."
Based on the discussion in the RFC linked below, I am removing the
TODO.
Link to the RFC:
https://lore.kernel.org/netdev/2001256.1782860341@famine/T/#t
Signed-off-by: Paritosh Potukuchi <paritosh.potukuchi@amd.com>
Link: https://patch.msgid.link/20260703125513.694324-1-paritosh.potukuchi@amd.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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When CONFIG_DRM_GPUSVM=n (e.g. um-allyesconfig), the only caller of
xe_pt_svm_userptr_notifier_lock() is compiled out, triggering:
drivers/gpu/drm/xe/xe_pt.c:1418:13: warning:
'xe_pt_svm_userptr_notifier_lock' defined but not used
[-Wunused-function]
The helpers cannot simply be removed in this case: the matching
xe_pt_svm_userptr_notifier_unlock() is also referenced from
xe_pt_update_ops_run(), which lives outside any DRM_GPUSVM ifdef and is
gated only at runtime by pt_update_ops->needs_svm_lock. The symbol must
exist in all builds.
Provide empty static inline stubs for !DRM_GPUSVM, matching the pattern
used by xe_svm_notifier_lock()/_unlock() in xe_svm.h.
Fixes: dca6e08c923a ("drm/xe/userptr: Hold notifier_lock for write on inject test path")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202606302210.QqcLbOEN-lkp@intel.com/
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630192221.2998168-1-shuicheng.lin@intel.com
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
(cherry picked from commit 3359422bf0a1140e96d783a19a397686e580a3ca)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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xe_vm_madvise_ioctl() allocates madvise_range.vmas in get_vmas().
After get_vmas() succeeds with at least one VMA, error paths must go
through free_vmas so the array is released before the madvise details are
destroyed.
The L2 flush validation path added for PAT madvise rejects some
SVM/userptr ranges after get_vmas() has succeeded, but jumps directly to
madv_fini. This skips kfree(madvise_range.vmas), leaking the VMA array on
each failed ioctl.
Jump to free_vmas instead, matching the other validation failure paths
after get_vmas() has succeeded.
Fixes: 4f39a194d41e ("drm/xe/xe3p_lpg: Restrict UAPI to enable L2 flush optimization")
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260708073422.725186-1-lgs201920130244@gmail.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit c3a1c3579b1250060da73507a4acef712974c78a)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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xe_pci.c includes <kunit/test-bug.h> twice, separated only by the
<kunit/test.h> include. Drop the redundant second include; this is a
non-functional cleanup flagged by scripts/checkincludes.pl.
Fixes: 6cad22853cb8 ("drm/xe/kunit: Add stub to read_gmdid")
Signed-off-by: Anas Khan <anxkhn28@gmail.com>
Link: https://patch.msgid.link/20260702112820.34675-1-anxkhn28@gmail.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 84ed5b0a925721aaf069d36e18a99db966ff4e80)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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Before arming a user job, xe_exec_ioctl() only added the VM's
dma-resv KERNEL slot as a dependency. That slot covers rebinds and
the kernel operations of the VM's private BOs, but not external BOs
(bo->vm == NULL), which carry their kernel operations (evictions,
moves, ...) in their own dma-resv KERNEL slot.
The DMA_RESV_USAGE_KERNEL slot is the cross-driver contract for
memory management operations that must complete before the BO or its
backing store may be used: any accessor is required to wait on the
KERNEL fences before touching the resv. By skipping the external BOs'
KERNEL slots, the exec path violated that contract and could schedule
a user job while a kernel operation on an external BO mapped by the VM
was still in flight, racing against it and potentially reading or
writing memory that was being moved.
Replace the VM-only dependency with an iteration over every object
locked by the exec, adding each object's KERNEL slot as a job
dependency. This covers the VM resv (rebinds and private BOs) as well
as every external BO, mirroring the drm_gpuvm_resv_add_fence() call
that later publishes the job fence to the same set of objects.
Long-running mode continues to skip this, as before.
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: stable@vger.kernel.org
Assisted-by: GitHub_Copilot:claude-opus-4.8
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20260702215805.4011228-1-matthew.brost@intel.com
(cherry picked from commit a6b842acf3ddd1efc53a56de9260cfa718fb35e7)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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xe_vm_populate_pgtable() indexed the source PTE array (update->pt_entries)
by the per-call loop counter, assuming each call starts at the first entry
of the update. That holds for the CPU bind path
(xe_migrate_update_pgtables_cpu), which populates a whole update in a single
call, but not for the GPU bind path: write_pgtable() splits an update into
MAX_PTE_PER_SDI (510) sized MI_STORE_DATA_IMM chunks, invoking the populate
callback once per chunk with an advancing qword_ofs but a fresh command-
buffer destination pointer.
As a result, every chunk after the first re-read pt_entries from index 0
instead of from its true offset, so PTEs beyond the first 510 entries of a
single update were programmed with the wrong physical pages, shifting the
mapping by exactly MAX_PTE_PER_SDI pages.
This stayed latent because a single update only exceeds 510 qwords when a
large (e.g. 2M) region is bound as individual 4K PTEs rather than a single
huge-page entry, which happens when the backing store is sufficiently
fragmented. It was surfaced by the BO defrag path, which deliberately
rebinds such fragmented ranges via the GPU bind path, producing
deterministic data corruption offset by 510 pages.
Index pt_entries by the chunk's absolute offset relative to update->ofs so
both the CPU and GPU paths pick the correct entries.
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: stable@vger.kernel.org
Assisted-by: GitHub_Copilot:claude-opus-4.8
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20260702012434.3861171-1-matthew.brost@intel.com
(cherry picked from commit e6f2d0b757c4fb577a513c577140109d1d292a9a)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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Mbox handling of nix_set_rx_mode for a VF with promiscuous and
all_multi flags set to false causes deletion of the PF's promiscuous
and allmulti MCAM rules. This occurs because the APIs that
enable/disable these rules operate only on the PF, even when the
mbox request is made via a VF interface.
Guard both rvu_npc_enable_allmulti_entry() and
rvu_npc_enable_promisc_entry() disable paths with an is_vf() check so
that a VF bringing up or tearing down its interface cannot inadvertently
clear the PF's MCAM rules.
Fixes: 967db3529eca ("octeontx2-af: add support for multicast/promisc packet replication feature")
Signed-off-by: Harman Kalra <hkalra@marvell.com>
Signed-off-by: Nitin Shetty J <nshettyj@marvell.com>
Link: https://patch.msgid.link/20260702045616.3002773-2-nshettyj@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The reg property from the device tree is used directly as an array index
into chip->leds[] without bounds checking. A value >= ST1202_MAX_LEDS
would cause an out-of-bounds write during probe.
Fixes: 259230378c65 ("leds: Add LED1202 I2C driver")
Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB849718B43321DB7E5A05D17BC5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones <lee@kernel.org>
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When brightness_set() is called with LED_OFF, only the ILED register is
zeroed; the channel enable bit is left set from probe time. A hardware
channel enabled with ILED=0 still draws a small residual current, causing
a dim glow even when the LED is supposed to be off.
Fix this by splitting st1202_channel_set() into a lockless inner function
__st1202_channel_set() and a locking wrapper, then calling the inner
function from brightness_set() while it already holds the mutex. The
channel is now disabled when value is zero and re-enabled when non-zero,
in the same lock region as the ILED write.
Fixes: 259230378c65 ("leds: Add LED1202 I2C driver")
Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB8497F11B30FE7D74CAA25135C5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Once a hardware pattern is running (PATS=1), writing to the brightness
sysfs attribute only updates the ILED register. The visible output is
ILED x Pattern_PWM / 4095, so the change has little effect and the LED
never returns to steady static operation as the user expects.
The LED1202 has a single global sequencer shared across all channels.
Stopping it in brightness_set() to force static mode would halt running
patterns on all other active LEDs.
Instead, set all 8 PWM slots for the channel to ST1202_PATTERN_PWM_FULL
before writing ILED. With every step at full duty cycle, the output is
ILED x FULL / 4095 = ILED regardless of the sequencer state, without
disturbing other channels.
This also enables basic LED operation without the pattern trigger: with
the trigger set to none, the brightness sysfs attribute fully controls
the LED as a simple on/off device.
Fixes: 259230378c65 ("leds: Add LED1202 I2C driver")
Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB8497570FD162D0D42A9864E3C5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones <lee@kernel.org>
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st1202_setup() writes PATS and PATSR to the Configuration register as
its final step, which starts the hardware pattern sequencer during
device probe before any patterns have been programmed. This causes the
device to run a sequence with whatever values happen to be in the
pattern registers at the time.
Remove the write. The device reset at the start of setup restores all
registers to their power-on defaults, leaving PATS and PATSR cleared.
Fixes: 259230378c65 ("leds: Add LED1202 I2C driver")
Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB849724B0FF00255F4760FAE0C5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones <lee@kernel.org>
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pattern_clear() sets all PWM registers for the channel to LED_OFF (0).
In static mode (PATS=0), the LED output is ILED x Pattern0_PWM / 4095;
with Pattern0 at zero the LED remains dark regardless of the ILED value.
The LED1202 has a single global sequencer shared across all channels.
If another channel starts the sequencer after this one has been cleared,
the cleared channel runs through all 8 steps at zero duty cycle and
stays dark regardless of ILED.
Set all 8 PWM slots to ST1202_PATTERN_PWM_FULL so that ILED alone
controls the channel brightness in both static and sequencer modes.
Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB849732C162CFE9E2C525AC16C5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The PATy_DUR register encodes duration as N × 22.2 ms, with register
value 0 reserved as a pattern skip indicator (§7.10). The driver
incorrectly subtracted 1 from the register value:
value / ST1202_MILLIS_PATTERN_DUR_MIN - 1
This caused two problems:
- All programmed durations were off by one step (~22 ms too short).
- Writing the minimum duration (22 ms) produced register value 0,
silently skipping the pattern step instead of setting a 22 ms
duration.
The maximum duration constant was also wrong at 5660 ms. The 8-bit
register saturates at 255, giving a maximum of 5610 ms (22 ms × 255).
Values above 5653 ms were already producing a uint8_t overflow and
writing 0 to the hardware.
Fix the formula by removing the erroneous subtraction, and derive the
maximum from the register width so the relationship is explicit. Update
the documentation to reflect the correct maximum.
This exposes a secondary issue: pattern_clear() was calling
st1202_duration_pattern_write() with ST1202_MILLIS_PATTERN_DUR_MIN to
reset unused slots, accidentally relying on the broken formula to
produce register value 0. With the corrected formula, the same call
writes 0x01 (22 ms), leaving unused slots as valid 22 ms zero-PWM
steps and making the LED appear off for 7 × 22 ms out of every cycle.
Write 0 directly to the duration registers in pattern_clear() so unused
slots are always explicitly marked as skip, independently of the
conversion formula.
Fixes: 259230378c65 ("leds: Add LED1202 I2C driver")
Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB84971D3AF982F4F707A378F0C5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Input validation for pattern duration is performed inside the write
loop, after the pattern sequence has already been stopped. If
validation fails mid-loop the chip is left with the sequence stopped
and partially written pattern data, with no recovery.
Move all input validation before the mutex and before any hardware
interaction, so an invalid input leaves the chip state unchanged.
Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB84975929B6ED7CDFBCEB7D76C5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The LED1202 datasheet (section 4.8) states that modifications to the
Pattern Sequence Repetition register (PAT_REP) and pattern duration
registers are only applied after the sequence has completed or been
stopped. When the device is running in infinite loop mode (PAT_REP =
0xFF) the sequence never completes on its own, so these writes are
silently ignored by the hardware.
Neither pattern_clear() nor pattern_set() stop the running sequence
before modifying pattern registers, causing any subsequent pattern
reprogramming to have no effect when the previous pattern was set to
infinite repeat.
Fix this by clearing PATS in the Configuration register before touching
any pattern registers in both functions, ensuring the hardware accepts
the new values immediately.
Note that the LED1202 has a single global pattern sequencer shared by
all channels: PATS, PATSR, the duration registers, and PAT_REP are
chip-wide. Stopping the sequencer in pattern_clear() therefore halts
any pattern running on other channels. This is an inherent hardware
constraint; pattern_set() restarts the sequencer when a new pattern is
programmed.
Fixes: 259230378c65 ("leds: Add LED1202 I2C driver")
Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB84978D0F499774773C7DA1FCC5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The pca9532_gpio_set_value() function incorrectly mapped the requested
value to PCA9532_ON and PCA9532_OFF, inverting the GPIO output polarity.
A requested logical high (val=1) incorrectly enabled the LED output
driver, which on this open-drain device pulls the pin low, while a
requested logical low (val=0) released the pin.
Correct the mapping so that val=1 yields PCA9532_OFF (pin released /
high-impedance) and val=0 yields PCA9532_ON (pin driven low).
pca9532_gpio_direction_input() is also updated to pass val=1 to
pca9532_gpio_set_value() to align with the corrected polarity mapping,
ensuring the pin remains not driven when configured as an input.
Fixes: 3c1ab50d0a31 ("drivers/leds/leds-pca9532.c: add gpio capability")
Signed-off-by: Cosmo Chou <chou.cosmo@gmail.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260703014201.69829-1-chou.cosmo@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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mlx5_tun_entropy_refcount_inc() counts both VXLAN and L2-to-L3
tunnel reformat entries as entropy-enabling users. The matching
decrement path only handled VXLAN, leaving L2-to-L3 tunnel entries
counted after release.
Handle MLX5_REFORMAT_TYPE_L2_TO_L3_TUNNEL in
mlx5_tun_entropy_refcount_dec() as well so the enabling entry
refcount remains balanced.
Fixes: f828ca6a2fb6 ("net/mlx5e: Add support for hw encapsulation of MPLS over UDP")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260703141423.1723-1-lirongqing@baidu.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The macro IONIC_SPEC_HIGH is defined twice - remove it.
Signed-off-by: Kamal Heib <kheib@redhat.com>
Link: https://patch.msgid.link/20260708210734.641411-1-kheib@redhat.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Add Static and Dynamic Interrupt Moderation (DIM) support for
Rx and Tx.
Update queue creation procedure with new data struct with the related
settings.
Add functions to collect stat for DIM, and workers to update DIM data
and settings.
Update ethtool handler to get/set the moderation settings from a user.
To avoid detach/re-attach ops, ring DIM doorbell to change settings
at run time.
By default, adaptive-rx/tx (DIM) are enabled if supported by HW.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260702220123.815018-1-haiyangz@linux.microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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