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1,447,411 commits

Author SHA1 Message Date
Fuad Tabba
e0a99a2b72 KVM: selftests: Fix typos and stale comments in kvm_util
Fix minor documentation errors in `kvm_util.h` and `kvm_util.c`.

- Correct the argument description for `vcpu_args_set` in `kvm_util.h`,
  which incorrectly listed `vm` instead of `vcpu`.
- Fix a typo in the comment for `kvm_selftest_arch_init` ("exeucting" ->
  "executing").
- Correct the return value description for `vm_vaddr_unused_gap` in
  `kvm_util.c` to match the implementation, which returns an address "at
  or above" `vaddr_min`, not "at or below".

No functional change intended.

Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260109082218.3236580-6-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 13:39:53 +00:00
Fuad Tabba
de00d07321 KVM: selftests: Move page_align() to shared header
To avoid code duplication, move page_align() to the shared `kvm_util.h`
header file. Rename it to vm_page_align(), to make it clear that the
alignment is done with respect to the guest's base page size.

No functional change intended.

Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260109082218.3236580-5-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 13:39:53 +00:00
Fuad Tabba
582b39463f KVM: riscv: selftests: Fix incorrect rounding in page_align()
The implementation of `page_align()` in `processor.c` calculates
alignment incorrectly for values that are already aligned. Specifically,
`(v + vm->page_size) & ~(vm->page_size - 1)` aligns to the *next* page
boundary even if `v` is already page-aligned, potentially wasting a page
of memory.

Fix the calculation to use standard alignment logic: `(v + vm->page_size
- 1) & ~(vm->page_size - 1)`.

Fixes: 3e06cdf105 ("KVM: selftests: Add initial support for RISC-V 64-bit")
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260109082218.3236580-4-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 13:39:53 +00:00
Fuad Tabba
dd0c5d04d1 KVM: arm64: selftests: Fix incorrect rounding in page_align()
The implementation of `page_align()` in `processor.c` calculates
alignment incorrectly for values that are already aligned. Specifically,
`(v + vm->page_size) & ~(vm->page_size - 1)` aligns to the *next* page
boundary even if `v` is already page-aligned, potentially wasting a page
of memory.

Fix the calculation to use standard alignment logic: `(v + vm->page_size
- 1) & ~(vm->page_size - 1)`.

Fixes: 7a6629ef74 ("kvm: selftests: add virt mem support for aarch64")
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260109082218.3236580-3-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 13:39:53 +00:00
Fuad Tabba
7e03d07d03 KVM: arm64: selftests: Disable unused TTBR1_EL1 translations
KVM selftests map all guest code and data into the lower virtual address
range (0x0000...) managed by TTBR0_EL1. The upper range (0xFFFF...)
managed by TTBR1_EL1 is unused and uninitialized.

If a guest accesses the upper range, the MMU attempts a translation
table walk using uninitialized registers, leading to unpredictable
behavior.

Set `TCR_EL1.EPD1` to disable translation table walks for TTBR1_EL1,
ensuring that any access to the upper range generates an immediate
Translation Fault. Additionally, set `TCR_EL1.TBI1` (Top Byte Ignore) to
ensure that tagged pointers in the upper range also deterministically
trigger a Translation Fault via EPD1.

Define `TCR_EPD1_MASK`, `TCR_EPD1_SHIFT`, and `TCR_TBI1` in
`processor.h` to support this configuration. These are based on their
definitions in `arch/arm64/include/asm/pgtable-hwdef.h`.

Suggested-by: Will Deacon <will@kernel.org>
Reviewed-by: Itaru Kitayama <itaru.kitayama@fujitsu.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260109082218.3236580-2-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 13:39:53 +00:00
Rafael J. Wysocki
b862e66a9c ACPI: scan: Clean up after recent changes
Use LIST_HEAD() for initializing an on-stack list head in two places and
remove an empty code line added by mistake.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/12825056.O9o76ZdvQC@rafael.j.wysocki
2026-01-15 14:27:38 +01:00
Rafael J. Wysocki
57c31e6d62 ACPI: scan: Use acpi_setup_gpe_for_wake() for buttons
After starting to use platform devices for representing buttons
enumerated via ACPI, acpi_mark_gpe_for_wake() is insufficient for
preparing their GPEs to wake up the system from sleep because it
does not change the "dispatch type" of the given GPE to
ACPI_GPE_DISPATCH_NOTIFY.  Subsequently, this causes acpi_enable_gpe()
in __acpi_device_wakeup_enable() to fail and system suspend transitions
to be aborted.

Address this by updating acpi_wakeup_gpe_init() to use
acpi_setup_gpe_for_wake() for buttons like for any other devices.

This allows acpi_setup_gpe_for_wake() to be simplified further because
buttons are not a special case in it any more, so do that as well.

Fixes: 52d8640196 ("ACPI: button: Convert the driver to a platform one")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://patch.msgid.link/2259694.irdbgypaU6@rafael.j.wysocki
2026-01-15 14:27:38 +01:00
Rafael J. Wysocki
88fad6ce09 ACPI: PM: Let acpi_dev_pm_attach() skip devices without ACPI PM
It is pointless to attach the generic ACPI PM domain to devices whose
ACPI companions don't support ACPI power management and don't have a
wakeup GPE, so update acpi_dev_pm_attach() to skip such devices.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/5050298.GXAFRqVoOG@rafael.j.wysocki
2026-01-15 14:27:38 +01:00
Rafael J. Wysocki
b8c8a8ea18 ACPI: Documentation: driver-api: Disapprove of using ACPI drivers
Sadly, there is quite a bit of technical debt related to the
kernel's ACPI support subsystem and one of the most significant
pieces of it is the existence and use of ACPI drivers represented
by struct acpi_driver objects.

Those drivers are bound directly to struct acpi_device objects, also
referred to as "ACPI device nodes", representing device objects in the
ACPI namespace defined as:

 A hierarchical tree structure in OS-controlled memory that contains
 named objects. These objects may be data objects, control method
 objects, bus/device package objects, and so on.

according to the ACPI specification [1].

The above definition implies, although rather indirectly, that the
objects in question don't really represent hardware.  They are just
"device package objects" containing some information on the devices
present in the given platform that is known to the platform firmware.

Although the platform firmware can be the only source of information on
some devices, the information provided by it alone may be insufficient
for device enumeration in general.  If that is the case, binding a
driver directly to a given ACPI device node clearly doesn't make sense.
If the device in question is enumerated through a hardware interface, it
will be represented by a device object matching that interface, like
a struct pci_dev, and the ACPI device node corresponding to it will be
treated as its "ACPI companions" whose role is to amend the "native"
enumeratiom mechanism.

For the sake of consistency and confusion avoidance, it is better to
treat ACPI device nodes in general as ACPI companions of other device
objects representing hardware.  In some cases though it appeared easier
to take a shortcut and use an ACPI driver binding directly to an ACPI
device node.  Moreover, there were corner cases in which that was the
only choice, but they all have been addressed now.

In all cases in which an ACPI driver might be used, the ACPI device
node it might bind to is an ACPI companion of another device object
representing a piece of hardware.  It is thus better to use a driver
binding to the latter than to use an ACPI driver and leave the other
device object alone, not just because doing so is more consistent and
less confusing, but also because using ACPI drivers may lead to
potential functional deficiencies, like possible ordering issues
related to power management.

Unfortunately, there are quite a few ACPI drivers in use and, as a rule,
they bind to ACPI device nodes that are ACPI companions of platform
devices, so in fact they play the role of platform drivers although in
a kind of convoluted way.  An effort has been under way to replace them
with platform drivers, which is relatively straightforward in the vast
majority of cases, but it has not been pursued very aggressively so far,
mostly due to the existence of the corner cases mentioned above.
However, since those corner cases are gone now, it makes sense to spend
more time on driver conversions with the ultimate goal to get rid of
struct acpi_driver and the related code from the kernel.

To that end, add a document explaining why using ACPI drivers is not
a good idea, so it need not be explained from scratch on every attempt
to convert an ACPI driver to a platform one.

Link: https://uefi.org/specs/ACPI/6.6/02_Definition_of_Terms.html#term-ACPI-Namespace [1]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/2396510.ElGaqSPkdT@rafael.j.wysocki
2026-01-15 14:27:38 +01:00
Rafael J. Wysocki
02c057ddef ACPI: video: Convert the driver to a platform one
While binding drivers directly to struct acpi_device objects allows
basic functionality to be provided, at least in the majority of cases,
there are some problems with it, related to general consistency, sysfs
layout, power management operation ordering, and code cleanliness.

Overall, it is better to bind drivers to platform devices than to their
ACPI companions, so convert the ACPI video driver to a platform one.

While this is not expected to alter functionality, it changes sysfs
layout and so it will be visible to user space.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/1957556.tdWV9SEqCh@rafael.j.wysocki
2026-01-15 14:27:06 +01:00
Rafael J. Wysocki
d91a624a69 ACPI: video: Adjust event notification routine
Adjust acpi_video_bus_notify() to cast its "data" argument to a struct
acpi_video_bus pointer instead of a struct acpi_device one, which allows
the use of acpi_driver_data() to be limited and will facilitate
subsequent changes.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/2409089.ElGaqSPkdT@rafael.j.wysocki
2026-01-15 14:27:00 +01:00
Rafael J. Wysocki
336aae5c4e ACPI: scan: Register platform devices for backlight device objects
ACPI device objects associated with backlight interfaces are special
because they are ACPI companions of PCI devices (GPUs), but the
interfaces exposed by them resemble platform device one.

Currently, the ACPI video driver binds to them with the help of a
special "synthetic" device ID regardless of the pairing with the PCI
devices, but since it is generally better to use platform drivers for
handling such interfaces, the plan is to convert that drviver into a
platform one.

However, for this purpose, platform devices corresponding to the
ACPI backlight device objects need to be registered, so update
acpi_bus_attach() to apply the default ACPI enumeration to them
and modify acpi_create_platform_device() to avoid bailing out early
if a "physical" device is already attached to a backlight ACPI device
object.

In addition, update acpi_companion_match() to return a valid struct
acpi_device pointer if the ACPI companion of the given device is a
backlight ACPI device object, which will facilitate driver matching
for platform devices corresponding to those objects.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/5081593.31r3eYUQgx@rafael.j.wysocki
2026-01-15 14:26:34 +01:00
AngeloGioacchino Del Regno
e1c9223adf
arm64: dts: mediatek: mt7988a: Fix PCI-Express T-PHY node address
The PCIe and USB TPHYs are under the soc bus, which provides MMIO,
and all nodes under that must use the bus, otherwise those would
clearly be out of place.

Add ranges to both the tphy(s) and assign the address to the main
node to silence a dtbs_check warning, and fix the children to
use the MMIO range of t-phy.

Fixes: ("f693e6ba55 arm64: dts: mediatek: mt7988: Add t-phy for ssusb1")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
2026-01-15 14:11:44 +01:00
Nick Xie
44e3f867fd arm64: dts: meson-s4-s905y4-khadas-vim1s: add initial device tree
The Khadas VIM1S uses the Amlogic S905Y4 SoC, based on the
Amlogic S4 SoC family, on a board with the same form factor as the
VIM/VIM2/VIM3/VIM4 models. Serial debug console, ethernet, SD card
work with this initial device tree.

It features:
 - 2GB LPDDR4 RAM
 - 16GB eMMC 5.1 storage
 - 32MB SPI flash
 - 100M Ethernet
 - AP6256 Wireless (802.11 a/b/g/n/ac, BT5.0)
 - HDMI 2.1 video
 - 2x USB 2.0 ports
 - 1x USB-C (power) with USB 2.0 OTG
 - 2x LED's (1x red, 1x white)
 - 3x buttons (power, function, reset)
 - IR receiver
 - 40pin GPIO Header
 - 1x micro SD card slot

Signed-off-by: Nick Xie <nick@khadas.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260115030015.1334517-4-nick@khadas.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2026-01-15 14:00:43 +01:00
Nick Xie
31b72cc32c arm64: dts: meson-s4-aq222: update compatible string with s805x2
Update the compatible string for the Amlogic AQ222 board to include
the specific SoC compatible "amlogic,s805x2".

This aligns the device tree with the updated bindings which now
differentiate between S4 family members (S805X2 vs S905Y4).

Signed-off-by: Nick Xie <nick@khadas.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260115030015.1334517-3-nick@khadas.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2026-01-15 14:00:43 +01:00
Nick Xie
10a46a7f6e dt-bindings: arm: amlogic: introduce specific compatibles for S4 family
The Amlogic S4 SoC family includes multiple variants, such as the S805X2
and S905Y4. Currently, the bindings only define the generic "amlogic,s4"
compatible.

This patch introduces specific compatibles "amlogic,s805x2" and
"amlogic,s905y4" to properly differentiate these SoCs while keeping
"amlogic,s4" as the family fallback.

This allows for more precise hardware description and future-proofing
if SoC-specific quirks arise.

Signed-off-by: Nick Xie <nick@khadas.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260115030015.1334517-2-nick@khadas.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2026-01-15 14:00:43 +01:00
Charles Keepax
61d2a7699a
ASoC: SDCA: Tidy up some memory allocations
It is slightly better to deference the type being allocate for a sizeof
rather than manually using the type. Saves effort if types change in the
future. This results in no functional changes, just tidies up the style
of the code a little.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260115114607.271990-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-01-15 12:46:10 +00:00
Frank Zhang
861d21c43c pmdomain:rockchip: Fix init genpd as GENPD_STATE_ON before regulator ready
RK3588_PD_NPU initialize as GENPD_STATE_ON before regulator ready.
rknn_iommu initlized success and suspend RK3588_PD_NPU. When rocket
driver register, it will resume rknn_iommu.

If regulator is still not ready at this point, rknn_iommu resume fail,
pm runtime status will be error: -EPROBE_DEFER.

This patch set pmdomain to off if it need regulator during probe,
consumer device can power on pmdomain after regulator ready.

Signed-off-by: Frank Zhang <rmxpzlb@gmail.com>
Tested-by: Chaoyi Chen <chaoyi.chen@rock-chips.com>
Tested-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fixes: db6df2e3fc ("pmdomain: rockchip: add regulator support")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2026-01-15 13:39:16 +01:00
Takashi Sakamoto
a4cd9860fa firewire: ohci: fix index of pages for dma address to 1394 OHCI IT context
The index of pages for dma address was changed wrongly. This commit
corrents it.

Fixes: ef6bdffbb8 ("firewire: core: stop using page private to store DMA mapping address")
Link: https://lore.kernel.org/r/20260114131729.16133-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
2026-01-15 21:33:36 +09:00
Krishna Chomal
8ca7515d3c
platform/x86: hp-wmi: fix platform profile values for Omen 16-wf1xxx
HP Omen 16-wf1xxx (board ID 8C78) currently sends the incorrect
Victus-specific thermal profile values via WMI, leading to a logical
inconsistency when switching between platform profiles.

The driver currently uses Victus S values:
0x00 => Balanced / Low-Power
0x01 => Performance

However, Omen Gaming Hub logs / EC register inspection on Windows shows
that this board is intended to use:
0x30 => Balanced / Low-Power
0x31 => Performance

This patch corrects the thermal profile command values to match the
values observed from Omen Gaming Hub logs. The performance benchmarks
and peak power draw (from both CPU and GPU) show no observable change
with this correction (suggesting that the firmware is currently tolerant
of the incorrect values). However sending the correct values prevents
potential regressions after future firmware updates.

Refactor victus_s_thermal_profile_boards from a list of strings to a
dmi_system_id table and move the lookup to module init. The new struct
thermal_profile_params is used to store board-specific WMI parameters,
allowing the driver to cache these values in a static pointer. This
avoids repeated DMI string comparisons and allows marking of DMI table as
__initconst.

Testing on HP Omen 16-wf1xxx (board 8C78) confirmed WMI codes 0x30/0x31
are now sent, resolving the logical inconsistency and ensuring the value
visible in EC registers match the Windows state for this profile.

Fixes: fb146a38cb ("platform/x86: hp-wmi: Add Omen 16-wf1xxx fan support")
Signed-off-by: Krishna Chomal <krishna.chomal108@gmail.com>
Link: https://patch.msgid.link/20260113182604.115211-2-krishna.chomal108@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-01-15 14:27:25 +02:00
Krishna Chomal
c203c59fb5
platform/x86: hp-wmi: implement fan keep-alive
The firmware on some HP laptops automatically reverts the fan speed
control to "Auto" mode after a 120 second timeout window.

To ensure that the user-selected fan profile (Max/Manual) persists,
implement a keep-alive mechanism that periodically refreshes the fan
mode trigger before the timeout occurs.

- Introduce a delayed workqueue to trigger the fan mode refresh every 90
  seconds, ensuring the system maintains the correct fan mode setting.
- Integrate the refresh mechanism into hp_wmi_apply_fan_settings() to
  start, update or cancel the keep-alive process based on the current
  fan mode.

This ensures that the driver stays in sync with the hardware.

Tested on: HP Omen 16-wf1xxx (board ID 8C78)

Signed-off-by: Krishna Chomal <krishna.chomal108@gmail.com>
Link: https://patch.msgid.link/20260113123738.222244-4-krishna.chomal108@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-01-15 14:26:38 +02:00
Krishna Chomal
46be1453e6
platform/x86: hp-wmi: add manual fan control for Victus S models
Add manual fan speed control and PWM reporting for HP Victus S-series
laptops.

While HPWMI_FAN_SPEED_SET_QUERY was previously added to reset max fan
mode, it is actually capable of individual fan control. This patch
implements hp_wmi_fan_speed_set() to allow manual control and hides
PWM inputs for non-Victus devices as the query is Victus specific.

The existing hp_wmi_fan_speed_max_get() query is unreliable on Victus S
firmware, often incorrectly reporting "Auto" mode even when "Max" is
active. To resolve this synchronization issue, move state tracking to
a per-device private context and apply "Auto" mode during driver
initialization to ensure a consistent starting point.

Refactor hp_wmi_apply_fan_settings() to use an intermediate ret
variable. This prepares the switch block for keep-alive logic being
added in a later patch, avoiding the need for duplicated mode check.

Tested on: HP Omen 16-wf1xxx (board ID 8C78)

Signed-off-by: Krishna Chomal <krishna.chomal108@gmail.com>
Link: https://patch.msgid.link/20260113123738.222244-3-krishna.chomal108@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-01-15 14:26:37 +02:00
Krishna Chomal
60f2d5d0f0
platform/x86: hp-wmi: order include headers
The include headers in hp-wmi driver are currently not in any specific
order. As the driver continues to grow, keep the header block organized
by sorting them alphabetically.

Signed-off-by: Krishna Chomal <krishna.chomal108@gmail.com>
Link: https://patch.msgid.link/20260113123738.222244-2-krishna.chomal108@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-01-15 14:26:34 +02:00
Paolo Abeni
851822aec1 linux-can-fixes-for-6.19-20260115
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Merge tag 'linux-can-fixes-for-6.19-20260115' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2026-01-15

this is a pull request of 4 patches for net/main, it super-seeds the
"can 2026-01-14" pull request. The dev refcount leak in patch #3 is
fixed.

The first 3 patches are by Oliver Hartkopp and revert the approach to
instantly reject unsupported CAN frames introduced in
net-next-for-v6.19 and replace it by placing the needed data into the
CAN specific ml_priv.

The last patch is by Tetsuo Handa and fixes a J1939 refcount leak for
j1939_session in session deactivation upon receiving the second RTS.

linux-can-fixes-for-6.19-20260115

* tag 'linux-can-fixes-for-6.19-20260115' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
  net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts
  can: raw: instantly reject disabled CAN frames
  can: propagate CAN device capabilities via ml_priv
  Revert "can: raw: instantly reject unsupported CAN frames"
====================

Link: https://patch.msgid.link/20260115090603.1124860-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-01-15 13:13:01 +01:00
Marc Zyngier
b638a9d0f8 KVM: arm64: selftests: Add a test for FEAT_IDST
Add a very basic test checking that FEAT_IDST actually works for
the {GMID,SMIDR,CSSIDR2}_EL1 registers.

Link: https://patch.msgid.link/20260108173233.2911955-10-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 11:58:57 +00:00
Marc Zyngier
592dc2c020 KVM: arm64: pkvm: Report optional ID register traps with a 0x18 syndrome
With FEAT_IDST, unimplemented system registers in the feature ID space
must be reported using EC=0x18 at the closest handling EL, rather than
with an UNDEF.

Most of these system registers are always implemented thanks to their
dependency on FEAT_AA64, except for a set of (currently) three registers:
GMID_EL1 (depending on MTE2), CCSIDR2_EL1 (depending on FEAT_CCIDX),
and SMIDR_EL1 (depending on SME).

For these three registers, report their trap as EC=0x18 if they
end-up trapping into KVM and that FEAT_IDST is implemented in the guest.
Otherwise, just make them UNDEF.

Link: https://patch.msgid.link/20260108173233.2911955-9-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 11:58:57 +00:00
Marc Zyngier
e5d40a5a97 KVM: arm64: pkvm: Add a generic synchronous exception injection primitive
Similarly to the "classic" KVM code, pKVM doesn't have an "anything
goes" synchronous exception injection primitive.

Carve one out of the UNDEF injection code.

Link: https://patch.msgid.link/20260108173233.2911955-8-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 11:58:57 +00:00
Marc Zyngier
70a5ce4efc KVM: arm64: Force trap of GMID_EL1 when the guest doesn't have MTE
If our host has MTE, but the guest doesn't, make sure we set HCR_EL2.TID5
to force GMID_EL1 being trapped. Such trap will be handled by the
FEAT_IDST handling.

Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Reviewed-by: Yuan Yao <yaoyuan@linux.alibaba.com>
Link: https://patch.msgid.link/20260108173233.2911955-7-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 11:58:57 +00:00
Marc Zyngier
f07ef1bef6 KVM: arm64: Handle CSSIDR2_EL1 and SMIDR_EL1 in a generic way
Now that we can handle ID registers using the FEAT_IDST infrastrcuture,
get rid of the handling of CSSIDR2_EL1 and SMIDR_EL1.

Reviewed-by: Yuan Yao <yaoyuan@linux.alibaba.com>
Link: https://patch.msgid.link/20260108173233.2911955-6-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 11:58:57 +00:00
Marc Zyngier
d78a14decd KVM: arm64: Handle FEAT_IDST for sysregs without specific handlers
Add a bit of infrastrtcture to triage_sysreg_trap() to handle the
case of registers falling into the Feature ID space that do not
have a local handler.

For these, we can directly apply the FEAT_IDST semantics and inject
an EC=0x18 exception. Otherwise, an UNDEF will do.

Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Reviewed-by: Yuan Yao <yaoyuan@linux.alibaba.com>
Link: https://patch.msgid.link/20260108173233.2911955-5-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 11:58:57 +00:00
Marc Zyngier
19f7567823 KVM: arm64: Add a generic synchronous exception injection primitive
Maybe in a surprising way, we don't currently have a generic way
to inject a synchronous exception at the EL the vcpu is currently
running at.

Extract such primitive from the UNDEF injection code.

Reviewed-by: Ben Horgan <ben.horgan@arm.com>
Reviewed-by: Yuan Yao <yaoyuan@linux.alibaba.com>
Link: https://patch.msgid.link/20260108173233.2911955-4-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 11:58:56 +00:00
Marc Zyngier
1ad9767acc KVM: arm64: Add trap routing for GMID_EL1
HCR_EL2.TID5 is currently ignored by the trap routing infrastructure.
Wire it in the routing table so that GMID_EL1, the sole register
trapped by this bit, is correctly handled in the NV case.

Link: https://patch.msgid.link/20260108173233.2911955-3-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 11:58:56 +00:00
Marc Zyngier
4a7fe842b8 arm64: Repaint ID_AA64MMFR2_EL1.IDS description
ID_AA64MMFR2_EL1.IDS, as described in the sysreg file, is pretty horrible
as it diesctly give the ESR value. Repaint it using the usual NI/IMP
identifiers to describe the absence/presence of FEAT_IDST.

Also add the new EL3 routing feature, even if we really don't care about it.

Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Link: https://patch.msgid.link/20260108173233.2911955-2-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-15 11:58:56 +00:00
Paolo Abeni
5ce234a8fe ipsec-2026-01-14
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Merge tag 'ipsec-2026-01-14' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec

Steffen Klassert says:

====================
pull request (net): ipsec 2026-01-14

1) Fix inner mode lookup in tunnel mode GSO segmentation.
   The protocol was taken from the wrong field.

2) Set ipv4 no_pmtu_disc flag only on output SAs. The
   insertation of input SAs can fail if no_pmtu_disc
   is set.

Please pull or let me know if there are problems.

ipsec-2026-01-14

* tag 'ipsec-2026-01-14' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
  xfrm: set ipv4 no_pmtu_disc flag only on output sa when direction is set
  xfrm: Fix inner mode lookup in tunnel mode GSO segmentation
====================

Link: https://patch.msgid.link/20260114121817.1106134-1-steffen.klassert@secunet.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-01-15 12:46:12 +01:00
AngeloGioacchino Del Regno
615962473b
arm64: dts: mediatek: mt8186-evb: Add vproc fixed regulator
This board at the moment has no support for PMIC regulators, but
the CCI requires a vproc regulator in order to both stop giving
dtbs_check warnings and to actually probe.

Since vproc is a system-critical regulator and the bootloader
enables it at max voltage, model it (at least temporarily) as
a regulator-fixed and assign it to CCI.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
2026-01-15 12:41:27 +01:00
Eric Dumazet
d4596891e7 net: inline napi_skb_cache_get()
clang is inlining it already, gcc (14.2) does not.

Small space cost (215 bytes on x86_64) but faster sk_buff allocations.

$ scripts/bloat-o-meter -t net/core/skbuff.gcc.before.o net/core/skbuff.gcc.after.o
add/remove: 0/1 grow/shrink: 4/1 up/down: 359/-144 (215)
Function                                     old     new   delta
__alloc_skb                                  471     611    +140
napi_build_skb                               245     363    +118
napi_alloc_skb                               331     416     +85
skb_copy_ubufs                              1869    1885     +16
skb_shift                                   1445    1413     -32
napi_skb_cache_get                           112       -    -112
Total: Before=59941, After=60156, chg +0.36%

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260112131515.4051589-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-01-15 12:30:28 +01:00
Mark Brown
be5a39e799
ASoC: rt5640: Fix duplicate clock properties in DT binding
Not quite overlapping changes to the rt5640 binding resulted in duplicate
definitions of the clocks and clock-names properties. Delete one of them,
preferring the simpler one.

Reported-by: Jon Hunter <jonathanh@nvidia.com>
Closes: https://lore.kernel.org/r/0e68c5f4-f68d-4544-bc7a-40694829db75@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20260114-asoc-fix-rt5640-dt-clocks-v1-1-421d438673c2@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-01-15 11:21:44 +00:00
Paolo Abeni
d281dff93a Merge branch 'net-mlx5-hws-single-flow-counter-support'
Tariq Toukan says:

====================
net/mlx5: HWS single flow counter support

This small series refactors the flow counter bulk initialization code
and extends it so that single flow counters are also usable by hardware
steering (HWS) rules.

Patches 1-2 refactor the bulk init path: first by factoring out common
flow counter bulk initialization into mlx5_fc_bulk_init(), then by
splitting the bitmap allocation into mlx5_fs_bulk_bitmap_alloc(), with
no functional changes.

Patch 3 initializes bulk data for counters allocated via
mlx5_fc_single_alloc(), so they can be safely used by HWS rules.
====================

Link: https://patch.msgid.link/1768210825-1598472-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-01-15 12:10:29 +01:00
Moshe Shemesh
1c8910f503 net/mlx5: Initialize bulk for single flow counters
Ensure that flow counters allocated with mlx5_fc_single_alloc() have
bulk correctly initialized so they can safely be used in HWS rules.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1768210825-1598472-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-01-15 12:10:27 +01:00
Mark Bloch
6a6c4dd7c0 net/mlx5: fs, split bulk init
Refactor mlx5_fs_bulk_init() by moving bitmap allocation logic into a
new helper function mlx5_fs_bulk_bitmap_alloc(). This change does not
alter any logic.

Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1768210825-1598472-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-01-15 12:10:27 +01:00
Mark Bloch
96e89982a6 net/mlx5: fs, factor out flow counter bulk init
Add mlx5_fc_bulk_init() to handle bulk initialization of flow counters.
This change does not alter any logic, but refactors the code to remove
duplicate initialization logic by centralizing it in a single function.

Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1768210825-1598472-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-01-15 12:10:27 +01:00
Herve Codina (Schneider Electric)
49261f479d soc: renesas: Add support for RZ/N1 GPIO Interrupt Multiplexer
On the Renesas RZ/N1 SoC, GPIOs can generate interruptions. Those
interruption lines are multiplexed by the GPIO Interrupt Multiplexer in
order to map 32 * 3 GPIO interrupt lines to 8 GIC interrupt lines.

The GPIO interrupt multiplexer IP does nothing but select 8 GPIO
IRQ lines out of the 96 available to wire them to the GIC input lines.

Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@bootlin.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260114093938.1089936-8-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2026-01-15 12:05:16 +01:00
Herve Codina (Schneider Electric)
94ed03a005 irqchip/renesas-rza1: Use for_each_of_imap_item iterator
The renesas-rza1 driver parses the interrupt-map property. It does it
using open code.

Recently for_each_of_imap_item iterator has been introduce to help
drivers in this parsing.

Convert the renesas-rza1 driver to use the for_each_of_imap_item
iterator instead of open code.

Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@bootlin.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260114093938.1089936-5-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2026-01-15 12:03:27 +01:00
Herve Codina (Schneider Electric)
3ac6dfe3d7 irqchip/ls-extirq: Use for_each_of_imap_item iterator
The ls-extirq driver parses the interrupt-map property. It does it using
open code.

Recently for_each_of_imap_item iterator has been introduce to help
drivers in this parsing.

Convert the ls-extirq driver to use the for_each_of_imap_item
iterator instead of open code.

Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@bootlin.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260114093938.1089936-4-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2026-01-15 12:03:27 +01:00
Herve Codina (Schneider Electric)
a9811aeb42 of: unittest: Add a test case for for_each_of_imap_item iterator
Recently for_each_of_imap_item iterator has been introduce to help
drivers in parsing the interrupt-map property.

Add a test case for this iterator.

Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@bootlin.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patch.msgid.link/20260114093938.1089936-3-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2026-01-15 12:03:27 +01:00
Herve Codina (Schneider Electric)
49d2cda7ca of/irq: Introduce for_each_of_imap_item
for_each_of_imap_item is an iterator designed to help a driver to parse
an interrupt-map property.

Indeed some drivers need to know details about the interrupt mapping
described in the device-tree in order to set internal registers
accordingly.

Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@bootlin.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patch.msgid.link/20260114093938.1089936-2-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2026-01-15 12:03:27 +01:00
Konstantin Taranov
f972bde732 RDMA/mana_ib: Take CQ type from the device type
Get CQ type from the used gdma device. The MANA_IB_CREATE_RNIC_CQ
flag is ignored. It was used in older kernel versions where
the mana_ib was shared between ethernet and rnic.

Fixes: d4293f96ce ("RDMA/mana_ib: unify mana_ib functions to support any gdma device")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/20260115093625.177306-1-kotaranov@linux.microsoft.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-15 06:03:22 -05:00
Herve Codina (Schneider Electric)
a684fa4d22 ARM: dts: r9a06g032: Add support for GPIO interrupts
In the RZ/N1 SoC, the GPIO interrupts are multiplexed using the GPIO
Interrupt Multiplexer.

Add the multiplexer node and connect GPIO interrupt lines to the
multiplexer.

The interrupt-map available in the multiplexer node has to be updated in
dts files depending on the GPIO usage. Indeed, the usage of an interrupt
for a GPIO is board dependent.

Up to 8 GPIOs can be used as an interrupt line (one per multiplexer
output interrupt).

Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@bootlin.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://patch.msgid.link/20260114093938.1089936-9-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2026-01-15 12:02:06 +01:00
Herve Codina (Schneider Electric)
ca91def749 ARM: dts: r9a06g032: Add GPIO controllers
Add GPIO controllers (Synopsys DesignWare IPs) available in the
r9a06g032 (RZ/N1D) SoC.

Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@bootlin.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patch.msgid.link/20260114093938.1089936-6-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2026-01-15 12:02:06 +01:00
Tommaso Merciai
4ef81dcac8 arm64: dts: renesas: rzg3e-smarc-som: Enable I3C support
Enable I3C on RZ/G3E SMARC SoM.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/9d1cf2cdb1c11f24378404142e4c8aff680c6961.1763638659.git.tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2026-01-15 12:02:06 +01:00