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Add a ZCRX_NOTIF_COPY notification type to signal userspace when a
received fragment could not be delivered using zero-copy and was
instead copied into a buffer.
Signed-off-by: Clément Léger <cleger@meta.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://patch.msgid.link/3d54bcd8bf10b3a1e88beb0cd39c40c3937bea4f.1779189667.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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There are currently no easy ways for the user to know if zcrx is out of
buffers and page pool fails to allocate. Add uapi for zcrx to communicate
it back.
It's implemented as a separate CQE, which for now is posted to the creator
ctx. To use it, on registration the user space needs to pass an instance
of struct zcrx_notification_desc, which tells the kernel the user_data
for resulting CQEs and which event types are expected / allowed.
When an allowed event happens, zcrx will post a CQE containing the
specified user_data, and lower bits of cqe->res will be set to the event
mask. Before the kernel could post another notification of the given
type, the user needs to acknowledge that it processed the previous one
by issuing IORING_REGISTER_ZCRX_CTRL with ZCRX_CTRL_ARM_NOTIFICATION.
The only notification type the patch implements is
ZCRX_NOTIF_NO_BUFFERS, but we'll need more of them in the future.
Co-developed-by: Vishwanath Seshagiri <vishs@meta.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Vishwanath Seshagiri <vishs@meta.com>
Link: https://patch.msgid.link/35cd307a03a43583838a2e151fc641c69abd786f.1779189667.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for v7.2-rc1:
UAPI Changes:
- Add VIRTIO_GPU_F_BLOB_ALIGNMENT flag.
Cross-subsystem Changes:
- Add common TMDS character rate constants to video/hdmi and use those
in bridge drivers.
Core Changes:
- Fix leak in drm_syncobj_find_fence.
- Fix OOB reads related to DP-MST.
- Create drm_get_bridge_by_endpoint and convert drivers to use it in
preparation of hotplug.
Driver Changes:
- Assorted bugfixes and cleanups to accel/ethosu, imagination, virtio,
rockchip.
- Expandable device heap support to amdxdna, bridge/chipone-icn6211.
- Add Surface Pro 12 panels.
- Convert ite-it6211 to use drm hdmi audio helpers.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/f4034e3c-8290-49e1-9410-dc1f449265f4@linux.intel.com
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For dependencies in the following patches
Resolve conflicts, use the goto labels from the rc tag.
* tag 'v7.1-rc5': (1526 commits)
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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The driver supports a new comp_mask: REQ_MASK_FIXED_QUE_ATTR.
The application sets this comp_mask bit in the CREATE_QP ureq
to indicate direct control of the QP. The driver goes through
the required processing for app allocated QPs (previous patches).
Only variable WQE mode is supported for these QPs.
This patch removes an unused comp_mask:
BNXT_RE_QP_REQ_MASK_VAR_WQE_SQ_SLOTS
Link: https://patch.msgid.link/r/20260519150041.7251-10-sriharsha.basavapatna@broadcom.com
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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App allocated QPs can use a separate doorbell for each QP.
This doorbell region can be passed through a new driver specific
DBR_HANDLE attribute, during QP creation. When this attribute
is set, associate the QP with the given doorbell region.
While the QP holds a reference to the dbr, the dbr itself
cannot be destroyed and is rejected with EBUSY error.
Link: https://patch.msgid.link/r/20260519150041.7251-9-sriharsha.basavapatna@broadcom.com
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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For app allocated QPs, the driver shouldn't use slots/round-up logic
to compute the msn table size. The application handles this logic
and computes 'sq_npsn' and passes it to the driver using a new uapi
parameter.
Link: https://patch.msgid.link/r/20260519150041.7251-5-sriharsha.basavapatna@broadcom.com
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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This flag indicates the path should be opened if it's a regular file.
This is useful to write secure programs that want to avoid being
tricked into opening device nodes with special semantics while thinking
they operate on regular files. This is a requested feature from the
uapi-group[1].
The previously introduced EFTYPE error code is returned when the path
doesn't refer to a regular file. For example, if openat2 is called on
path /dev/null with OPENAT2_REGULAR in the flag param, it will return
-EFTYPE.
When used in combination with O_CREAT, either the regular file is
created, or if the path already exists, it is opened if it's a regular
file. Otherwise, -EFTYPE is returned.
When OPENAT2_REGULAR is combined with O_DIRECTORY, -EINVAL is returned
as it doesn't make sense to open a path that is both a directory and a
regular file.
The UAPI bit lives in the upper 32 bits of open_how::flags
(((__u64)1 << 32)) so that open(2) and openat(2) -- whose @flags
argument is a C int -- cannot physically express it. This is a
structural guarantee, not a runtime mask: the bit is unrepresentable in
32 bits.
Because the rest of the VFS open path narrows to 32 bits in several
places (op->open_flag, f->f_flags, the unsigned open_flag argument of
i_op->atomic_open()), build_open_flags() translates OPENAT2_REGULAR
into a kernel-internal lower-32-bit carrier __O_REGULAR (bit 4, unused
as an O_* on every architecture) before the assignment to op->open_flag.
__O_REGULAR then rides through the existing channels exactly like
__FMODE_EXEC. do_dentry_open() strips it so it cannot leak back to
userspace via fcntl(F_GETFL).
Four BUILD_BUG_ON_MSG() invariants in build_open_flags() prevent any
future bit collision or accidental low-32 redefinition:
- VALID_OPEN_FLAGS fits in 32 bits.
- OPENAT2_REGULAR lives in the upper 32 bits.
- OPENAT2_REGULAR does not alias any open()/openat() flag.
- __O_REGULAR does not alias any user-visible flag.
[1]: https://uapi-group.org/kernel-features/#ability-to-only-open-regular-files
Christian Brauner <brauner@kernel.org> says:
Move OPENAT2_REGULAR to the upper 32 bits of open_how::flags with a
kernel-internal __O_REGULAR carrier so that open(2)/openat(2) cannot
encode the flag; add BUILD_BUG_ON_MSG() invariants and register
__O_REGULAR in the fcntl_init() allocation-uniqueness BUILD_BUG_ON()
(bit count 21 -> 22).
Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com>
Link: https://patch.msgid.link/20260328172314.45807-2-dorjoychy111@gmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Aleksa Sarai <aleksa@amutable.com>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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The NXP NETC switch tag is a proprietary header added to frames after the
source MAC address. The switch tag has 3 types, and each type has 1 ~ 4
subtypes, the details are as follows.
Forward NXP switch tag (Type=0): Represents forwarded frames.
- SubType = 0 - Normal frame processing.
To_Port NXP switch tag (Type=1): Represents frames that are to be sent
to a specific switch port.
- SubType = 0. No request to perform timestamping.
- SubType = 1. Request to perform one-step timestamping.
- SubType = 2. Request to perform two-step timestamping.
- SubType = 3. Request to perform both one-step timestamping and
two-step timestamping.
To_Host NXP switch tag (Type=2): Represents frames redirected or copied
to the switch management port.
- SubType = 0. Received frames redirected or copied to the switch
management port.
- SubType = 1. Received frames redirected or copied to the switch
management port with captured timestamp at the switch port where
the frame was received.
- SubType = 2. Transmit timestamp response (two-step timestamping).
In addition, the length of different type switch tag is different, the
minimum length is 6 bytes, the maximum length is 14 bytes. Currently,
Forward tag, SubType 0 of To_Port tag and Subtype 0 of To_Host tag are
supported. More tags will be supported in the future.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260518082506.1318236-10-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Introduce a new error code EFTYPE for wrong file type operations.
EFTYPE is already used in BSD systems like FreeBSD and macOS.
This will be used by the upcoming OPENAT2_REGULAR flag support to
return a specific error when a path doesn't refer to a regular file.
Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com>
Link: https://patch.msgid.link/20260328172314.45807-2-dorjoychy111@gmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Aleksa Sarai <aleksa@amutable.com>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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To get an operable version of an O_PATH file descriptor, it is possible
to use openat(fd, ".", O_DIRECTORY) for directories, but other files
currently require going through open("/proc/<pid>/fd/<nr>"), which
depends on a functioning procfs.
This patch adds the O_EMPTYPATH flag to openat(2)/openat2(2). If passed,
LOOKUP_EMPTY is set at path resolution time.
Note: This implies that you cannot rely anymore on disabling procfs from
being mounted (e.g. inside a container without procfs mounted and with
CAP_SYS_ADMIN dropped) to prevent O_PATH fds from being re-opened
read-write.
Signed-off-by: Jori Koolstra <jkoolstra@xs4all.nl>
Link: https://patch.msgid.link/20260424114611.1678641-2-jkoolstra@xs4all.nl
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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The CAC block implements chromatic aberration correction. Expose it to
userspace using the extensible parameters format. This was tested on the
i.MX8MP platform, but based on available documentation it is also present
in the RK3399 variant (V10). Thus presumably also in later versions,
so no feature flag is introduced.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patch.msgid.link/20260511150957.581049-1-barnabas.pocze@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The name of the enum to hold the mapping of parameter buffer versions
have a typo in the name, correct it. While this is a uAPI header the
impact should be minimal as the enum is only used as a collection for
the one version number supported.
Fixes: e9d05e9d5db1 ("media: uapi: rkisp1-config: Add extensible params format")
Cc: stable@vger.kernel.org
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patch.msgid.link/20260501190339.3449193-1-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add VIRTGPU_PARAM_BLOB_ALIGNMENT as a param that can be read with
VIRTGPU_GETPARAM by userspace applications running in the guest to
obtain the host's page size and find out the right alignment to be used
in shared memory allocations.
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patch.msgid.link/20260428194450.518296-4-slp@redhat.com
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Support VIRTIO_GPU_F_BLOB_ALIGNMENT, a feature that indicates the device
provides a valid blob_alignment field in its configuration, and that
both RESOURCE_CREATE_BLOB and RESOURCE_MAP_BLOB requests must be aligned
to that value.
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patch.msgid.link/20260428194450.518296-2-slp@redhat.com
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The tee_ioctl_object_invoke_arg structure has padding on some
architectures but not on x86-32 and a few others:
include/linux/tee.h:474:32: error: padding struct to align 'params' [-Werror=padded]
I expect that all current users of this are on architectures that do
have implicit padding here (arm64, arm, x86, riscv), so make the padding
explicit in order to avoid surprises if this later gets used elsewhere.
Fixes: d5b8b0fa1775 ("tee: add TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Harshal Dev <harshal.dev@oss.qualcomm.com>
Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
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Modern systems may have more than 16 PPS sources and current hard-coded
limit breaks registration of some devices. Let's bump the limit to 256
in hope it will be enough in foreseen future.
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Link: https://patch.msgid.link/20260515135028.2021318-1-vadim.fedorenko@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Drop comments about CEC 2.0 from cec-funcs.h.
In cec.h clearly comment messages that are CEC 2.0 specific
as such. Also rename references to HDMI 2.0 to CEC 2.0.
The <Request/Report Current Latency> messages were marked
as CEC 2.0 only. That is wrong, these messages are explicitly
allowed for any CEC version.
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Link: https://patch.msgid.link/098789ee233f777d5ad87a72f09a997373c98d25.1779115235.git.hverkuil+cisco@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <098789ee233f777d5ad87a72f09a997373c98d25.1779115235.git.hverkuil+cisco@kernel.org>
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Add support for the new Latency Indication Protocol feature.
This adds the opcodes and the wrapper functions.
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Link: https://patch.msgid.link/8dac7c99b7eab4fcc11d76d50dd08fb4448672f4.1779115235.git.hverkuil+cisco@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <8dac7c99b7eab4fcc11d76d50dd08fb4448672f4.1779115235.git.hverkuil+cisco@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux into soc/drivers
FSL SOC Changes for 7.1
Freescale QUICC Engine:
- Add missing cleanup on device removal and switch to irq_domain_create_linear()
in interrupt controller for IO Ports
- Panic on ioremap() failure in qe_reset()
Freescale Management Complex:
- Move fsl-mc over to device MSI infrastructure
- Wait for the MC firmware to complete its boot
Freescale Hypervisor:
- Fix header kernel-doc warnings
* tag 'soc_fsl-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux:
bus: fsl-mc: wait for the MC firmware to complete its boot
soc: fsl: qe: panic on ioremap() failure in qe_reset()
soc: fsl: qe_ports_ic: switch to irq_domain_create_linear()
soc: fsl: qe_ports_ic: Add missing cleanup on device removal
virt: fsl_hypervisor: fix header kernel-doc warnings
platform-msi: Remove stale comment
fsl-mc: Remove legacy MSI implementation
fsl-mc: Switch over to per-device platform MSI
irqchip/gic-v3-its: Add fsl_mc device plumbing to the msi-parent handling
fsl-mc: Add minimal infrastructure to use platform MSI
fsl-mc: Remove MSI domain propagation to sub-devices
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The existing one-liner "Folder is case insensitive" leaves the
impression that FS_CASEFOLD_FL is reserved for directories.
That impression is wrong: filesystems that derive
case-insensitivity from mount or volume state report the bit on
non-directory inodes via i_op->fileattr_get, so userspace
inspecting FS_IOC_GETFLAGS can see it on any inode type.
Replace the one-liner with a block comment that names directories
as the typical case, records that non-directory inodes may also
report the bit, and notes FS_XFLAG_CASEFOLD as the read-only
companion exposed through FS_IOC_FSGETXATTR.
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260507-case-sensitivity-v14-0-e62cc8200435@oracle.com?part=3
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260515153515.362266-5-cel@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for v7.2-rc1:
UAPI Changes:
- Update fourcc descriptions of BG(R) floating formats.
- Add deferred mapping support to virtio.
Cross-subsystem Changes:
- Update lontium lt9211 bindings.
Core Changes:
- Bugfixes and cleanups to pagemap, dp/mst.
- Add lockdep annotations to gpu buddy manager.
- Updates to drm/dp for PR + VRR.
- Improve documentation's table of contents.
- Bump fpfn and lpfn in ttm to 64-bits.
Driver Changes:
- Assorted bugfixes, cleanups and updates to panthor, nouveau, qaic,
hisilicon.
- Add support for CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5, IVO
R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F, AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels.
- More implementation of AIE4 in amdxdna.
- Update panels to use refcounts instead of devm_kzalloc to make
drm_panel_init static.
- Add support for the RCade Display Adapter to gud.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/98788814-e462-4950-bb2a-ea493c30d0c0@linux.intel.com
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Cross-merge networking fixes after downstream PR (net-7.1-rc4).
No conflicts, or adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This adds custom filtering for IORING_OP_CONNECT, where the target
family is always exposed, and (for AF_INET / AF_INET6) port and
address are exposed. port and v4_addr are in network byte order so
filter authors can compare against on-wire constants.
Skip population unless addr_len covers the populated fields, to
avoid leaking stale io_async_msghdr data on short connects.
Signed-off-by: Shouvik Kar <auxcorelabs@gmail.com>
Link: https://patch.msgid.link/20260512110242.26219-1-auxcorelabs@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Add netlink attributes for controlling gratuitous ARP and unsolicited NA
forwarding when neighbor suppression is enabled.
Add IFLA_BRPORT_NEIGH_FORWARD_GRAT for port-level control and
BRIDGE_VLANDB_ENTRY_NEIGH_FORWARD_GRAT for per-VLAN control.
The new attributes provide independent control of gratuitous ARP and
unsolicited NA packets. Operators can enable forwarding for those packets
for fast mobility across VTEPs while keeping general neighbor suppression
active.
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Link: https://patch.msgid.link/20260511065936.4173106-2-danieller@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add 64-bit counters for each impairment netem applies (delay, loss,
ECN marking, corruption, duplication, reordering) and for skb
allocation failures during enqueue. Exposed through TCA_STATS_APP
as struct tc_netem_xstats.
Counters increment when an impairment is occurs, independent of later
events that may mask its on-wire effect. Added allocation_errors
(similar to sch_fq) to account for when impairment could not be
applied due to memory pressure, etc.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Link: https://patch.msgid.link/20260509171123.307549-6-stephen@networkplumber.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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If userspace never maps GEM object, then BO wastes hostmem space
because VirtIO-GPU driver maps VRAM BO at the BO's creating time.
Make mappings on-demand by adding new RESOURCE_CREATE_BLOB IOCTL/UAPI
hinting flag telling that host mapping should be deferred until first
mapping is made when the flag is set by userspace.
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Link: https://patch.msgid.link/20260501000043.2483678-1-dmitry.osipenko@collabora.com
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Commit b1798910fc7f ("drbd: move UAPI headers to include/uapi/linux/")
broke compilation on targets without a hosted libc:
./usr/include/linux/drbd.h:18:10: fatal error: sys/types.h: No such
file or directory
The underlying issue is that there were some constructs left over in
those headers that don't belong in uapi.
Drop the __KERNEL__-gated split in drbd.h. The !__KERNEL__ branch pulls
in <sys/types.h>, <sys/wait.h> and <limits.h> for symbols that the
header does not actually reference; they were carried over from when
this lived in include/linux/.
Replace <asm/types.h> and the entire #ifdef block with the standard
UAPI combo <linux/types.h> + <asm/byteorder.h>, which provides
__u32/__u64/__s32 and __{LITTLE,BIG}_ENDIAN_BITFIELD in both kernel
and userspace contexts.
drbd_limits.h references some enum values and the DRBD_PROT_C define
from drbd.h, but does not include it. Add the missing include while
we're here.
Drop the unprefixed DEBUG_RANGE_CHECK from drbd_limits.h. It has no
in-kernel users and pollutes the userspace namespace.
Switch the drbd.h and drbd_limits.h include guards to the _UAPI_LINUX_*
convention already used by drbd_genl.h.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202605101346.V2wwJqv1-lkp@intel.com/
Fixes: b1798910fc7f ("drbd: move UAPI headers to include/uapi/linux/")
Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Link: https://patch.msgid.link/20260513110343.3170338-1-christoph.boehmwalder@linbit.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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iproute2 can spend considerable amount of time in ll_init_map()
or ll_link_get() to dump verbose netdev attributes, contributing
to RTNL pressure.
Add RTEXT_FILTER_NAME_ONLY new flag so that rtnl_fill_ifinfo()
limits its output to:
- struct nlmsghdr
- IFLA_IFNAME
- IFLA_PROP_LIST (alternate names)
We can later avoid using RTNL when RTEXT_FILTER_NAME_ONLY
is requested, as none of these attributes need RTNL.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260511070244.971028-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add generic BPF syscall support for passing common attributes.
The initial set of common attributes includes:
1. 'log_buf': User-provided buffer for storing logs.
2. 'log_size': Size of the log buffer.
3. 'log_level': Log verbosity level.
4. 'log_true_size': Actual log size reported by kernel.
The common-attribute pointer and its size are passed as the 4th and 5th
syscall arguments. A new command bit, 'BPF_COMMON_ATTRS' ('1 << 16'),
indicates that common attributes are supplied.
This commit adds syscall and uapi plumbing. Command-specific handling is
added in follow-up patches.
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260512153157.28382-2-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Bump `KFD_IOCTL_MINOR_VERSION` from 22 to 23 and document version 1.23
in `kfd_ioctl.h` so userspace can detect profiler ioctl support.
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Introduce a new IOCTL option to allow userspace explicit control over
the Peak Tops Limiter (PTL) state for profiling
Link: https://github.com/ROCm/rocm-systems/tree/develop/projects/rocprofiler-sdk
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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kfd_ioctl_profiler takes a similar approach to that of
kfd_ioctl_dbg_trap (which contains debugger related IOCTL
services) where kfd_ioctl_profiler will contain all profiler
related IOCTL services. The IOCTL is designed to be expanded
as needed to support additional profiler functionality.
The current functionality of the IOCTL is to allow for profilers
which need PMC counters from GPU devices to both signal to other
profilers that may be on the system that the device has active PMC
profiling taking place on it (multiple PMC profilers on the same
device can result in corrupted counter data) and to setup the device
to allow for the collection of SQ PMC data on all queues on the device.
For PMC data for the SQ block (such as SQ_WAVES) to be available
to a profiler, mmPERFCOUNT_ENABLE must be set on the queues. When
profiling a single process, the profiler can inject PM4 packets into
each queue to turn on PERFCOUNT_ENABLE. When profiling system wide,
the profiler does not have this option and must have a way to turn
on profiling for queues in which it cannot inject packets into directly.
Accomplishing this requires a few steps:
1. Checking if the user has the necessary permissions to profile system
wide on the device. This check uses the same check that linux perf
uses to determine if a user has the necessary permissions to profile
at this scope (primarily if the process has CAP_SYS_PERFMON or is root).
2. Locking the device for profiling. This is done by setting a lock bit
on the device struct and storing the process that locked the device.
3. Iterating all queues on the device and issuing an MQD Update to enable
perfcounting on the queues.
4. Actions to cleanup if the process exits or releases the lock.
The IOCTL also contains a link to the existing PC Sampling IOCTL as well.
This is per a suggestion that we should potentially remove the PC Sampling
IOCTL to have it be a part of the profiler IOCTL. This is a future change.
In addition, we do expect to expand the profiler IOCTL to include
additional profiler functionality in the future (which necessitates the
use of a version number).
v2: sqaush in proper IOCTL number
Proposed userpace support:
https://github.com/ROCm/rocm-systems/commit/40abc95a6463a61bb318a67efd6d9cc3e5ee8839
Signed-off-by: Benjamin Welton <benjamin.welton@amd.com>
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Acked-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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The synclink_gt driver was marked as broken in commit 426263d5fb40
("tty: synclink_gt: mark as BROKEN") in July 2023 because it had severe
structural problems and there had been no evidence of users since 2016.
Since then, no meaningful improvements have been made to the driver,
and it is unlikely that will ever happen due to the lack of interest.
Drop the driver and references to it in comments and documentation.
include/uapi/linux/synclink.h is also removed. The only use of this
header I have found is the linux-raw-sys Rust crate. It generates
bindings for all UAPI headers, but has a hardcoded list of headers and
ioctls, including this one, so that does not indicate that anyone is
using it. I have sent a pull request to remove the include and ioctl
definitions for this header (see the link below).
Link: https://github.com/sunfishcode/linux-raw-sys/pull/185
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260504031519.18877-1-enelsonmoore@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Enable upper layers such as NFSD to retrieve case sensitivity
information from file systems by adding FS_XFLAG_CASEFOLD and
FS_XFLAG_CASENONPRESERVING flags.
Filesystems report case-insensitive or case-nonpreserving behavior
by setting these flags directly in fa->fsx_xflags. The default
(flags unset) indicates POSIX semantics: case-sensitive and
case-preserving. Both flags are added to FS_XFLAG_RDONLY_MASK so
FS_IOC_FSSETXATTR silently strips them, keeping the new xflags
strictly a reporting interface. Callers that want to toggle
casefolding continue to use FS_IOC_SETFLAGS with FS_CASEFOLD_FL,
the established UAPI on filesystems that support the operation
(ext4 and f2fs on empty directories).
Case sensitivity information is exported to userspace via the
fa_xflags field in the FS_IOC_FSGETXATTR ioctl and file_getattr()
system call.
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-2-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Cross-merge BPF and other fixes after downstream PR.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The channels were described in reverse format, i.e. RGBA instead of ABGR
Signed-off-by: Robert Ancell <robert.ancell@canonical.com>
CC: Rob Clark <robin.clark@oss.qualcomm.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20260503235327.92428-1-robert.ancell@canonical.com
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
- Fix spurious failures in rseq self-tests (Mark Brown)
- Fix rseq rseq::cpu_id_start ABI regression due to TCMalloc's creative
use of the supposedly read-only field
The fix is to introduce a new ABI variant based on a new (larger)
rseq area registration size, to keep the TCMalloc use of rseq
backwards compatible on new kernels (Thomas Gleixner)
- Fix wakeup_preempt_fair() for not waking up task (Vincent Guittot)
- Fix s64 mult overflow in vruntime_eligible() (Zhan Xusheng)
* tag 'sched-urgent-2026-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix wakeup_preempt_fair() for not waking up task
sched/fair: Fix overflow in vruntime_eligible()
selftests/rseq: Expand for optimized RSEQ ABI v2
rseq: Reenable performance optimizations conditionally
rseq: Implement read only ABI enforcement for optimized RSEQ V2 mode
selftests/rseq: Validate legacy behavior
selftests/rseq: Make registration flexible for legacy and optimized mode
selftests/rseq: Skip tests if time slice extensions are not available
rseq: Revert to historical performance killing behaviour
rseq: Don't advertise time slice extensions if disabled
rseq: Protect rseq_reset() against interrupts
rseq: Set rseq::cpu_id_start to 0 on unregistration
selftests/rseq: Don't run tests with runner scripts outside of the scripts
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Replace the genl_magic multi-include macro system with explicit
serialization and parsing.
The *_gen files were initially produced from a YNL spec via a
customized ynl-gen-c, but the DRBD netlink family is effectively
frozen, so the generator is kept unmodified.
All new functionality will land in a separate, properly-designed
family.
Carry the resulting code as ordinary in-tree source rather than
landing the spec and generator changes that produced it.
The bulk of the changes are mechanical renames to fit the YNL naming
conventions:
- Handler functions: drbd_adm_* -> drbd_nl_*_doit/dumpit
- GENL_MAGIC_VERSION -> DRBD_FAMILY_VERSION
- GENL_MAGIC_FAMILY_HDRSZ -> sizeof(struct drbd_genlmsghdr)
- drbd_genl_family -> drbd_nl_family
- Attribute IDs: T_* -> DRBD_A_*
Remove the nested_attr_tb static global buffer and move to a per-call
allocation approach: each deserialization manages its own nested
attribute table. This will be needed anyway when we eventually move
to parallel_ops, and it's actually simpler this way, so make the
move now.
Replace the functionality of the "sensitive" flag: this was only used
by a single field (shared_secret); open-code redaction logic for that
locally.
Also replace the "invariant" flag: this only had a couple of users,
and those basically never change. Hard code the check directly inline.
The genl_family struct itself is defined manually in drbd_nl.c.
Also replace a couple of drbd-specific wrappers (nla_put_u64_0pad,
drbd_nla_find_nested) with standard kernel functions while we're at
it.
Finally, completely remove the genl_magic system; DRBD was its only
user.
Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260506124541.1951772-3-christoph.boehmwalder@linbit.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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drbd.h and drbd_limits.h contain only type definitions, enums, and
constants shared between kernel and userspace. These should be part of
UAPI.
Split the genl_api header into two: the genlmsghdr and the enums are
UAPI, the rest stays there for now (it will be removed by one of the
next commits in this series).
drbd_config.h is clearly DRBD-internal, so move it there.
Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260506124541.1951772-2-christoph.boehmwalder@linbit.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for v7.2-rc1:
UAPI Changes:
- Support medium/low power modes in amdxdna.
- Support limiting frequency in ivpu.
- Document license for drm core uAPI headers.
- Add the following DRM formats: P230, Y7, XYYY2101010, T430,
XVUY210101010.
Cross-subsystem Changes:
- Add and improve dt-bindings.
- Remove unused dma-fence-array's signal_on_any support.
Core Changes:
- Do not call drop_master on file close if not master.
- Convert drm-bridge and drm/atomic to use drm_printf_indent.
- Remove the extra call to drm_connector_attach_encoder after
drm_bridge_connector_init().
- Assorted docbook updates.
Driver Changes:
- Bugfixes in amdxdna, ivpu, mipi-dsi, imagination, nouveau, panthor,
bridge/analogix_dp, ipv3, lontium-lt8912b, verisilicon, tve200,
etnaviv, panel/focaltech-ota7290b, panel/jadard-jd9365da-h3,
bridge/ite-it6263, renesas, xlnx, bridge/cdns-dsi, gma500,
bridge/microchip-lvds, mgag200.
- Add support for MStar TSUMU88ADT3-LF-1 bridge.
- Add support for WaveShare 7, Novatek NT35532, Startek KD070HDFLD092,
ChipWealth CH13726A AMOLED, Team Source Display TST070WSNE-196C,
Displaytech DT050BTFT-PTS panels.
- Improve mipi-dsi shutdown and convert a panasonic panel to use the
mipi-dsi wrappers.
- Allowing dumping vbios over debugfs in GSP-RM mode.
- Update maintainers for ivpu, add reviewer for drm-bridge code
and update maintainers for LT8912B DRM HDMI bridge.
- Add test pattern support to bridge/ti-sn65dsi83.
- Convert vmwgfx to vblank timers.
- Add power management to sysfb drm drivers to allow suspend/resume.
- Support the aforementioned new drm formats in xlnx/qynqmp.
- Fix panel Kconfig dependencies.
- Add carveout support for debugging and bringup to amxdna.
- Add support for long command tx via videobuffer in bridge/tc358768.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/f73f342d-6efb-416d-81b0-1716bdd98d5f@linux.intel.com
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Expose the command doorbell register to userspace on a per-hardware
context basis, enabling applications to notify the firmware of pending
commands via doorbell writes.
Introduce DRM_IOCTL_AMDXDNA_WAIT_CMD to allow userspace to wait for
completion of individual commands.
Co-developed-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: David Zhang <yidong.zhang@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260505160936.3917732-5-lizhi.hou@amd.com
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Implement hardware context creation and destruction for AIE4 VF devices.
Co-developed-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: David Zhang <yidong.zhang@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260505160936.3917732-4-lizhi.hou@amd.com
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Add basic device initialization support for AIE4 Virtual Functions (PCI
device IDs 0x17F3 and 0x1B0C).
Co-developed-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: David Zhang <yidong.zhang@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260505160936.3917732-2-lizhi.hou@amd.com
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Cross-merge networking fixes after downstream PR (net-7.1-rc3).
Conflicts:
net/ipv4/igmp.c
726fa7da2d8c ("ipv4: igmp: get rid of IGMPV3_{QQIC,MRC} and simplify calculation")
c6bebaa744f7 ("ipv4: igmp: annotate data-races in igmp_heard_query()")
https://lore.kernel.org/a7365e4873340f7a5e30411207de3bf9@kernel.org
Adjacent changes:
net/psp/psp_main.c
30cb24f97d44 ("psp: strip variable-length PSP header in psp_dev_rcv()")
c2b22277ad89 ("psp: validate IPv4 header fields in psp_dev_rcv()")
net/sched/sch_fq_codel.c
f83e07b29246 ("net/sched: sch_fq_codel: annotate data-races from fq_codel_dump_class_stats()")
3f3aa77ff1c8 ("net/sched: add qstats_cpu_drop_inc() helper")
net/wireless/pmsr.c
0f3c0a197309 ("wifi: nl80211: fix NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST usage")
410aa47fd9d3 ("wifi: cfg80211: allow suppressing FTM result reporting for PD requests")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge drm-next to bring the drm_atomic_state renaming patch.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
Lots of new content in cfg80211/mac80211, notably
- more NAN work, mostly complete now (also hwsim)
- more UHR work (e.g. non-primary channel access),
this will continue for a while
- FTM ranging APIs
* tag 'wireless-next-2026-05-06' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (70 commits)
wifi: mac80211: explicitly disable FTM responder on AP stop
wifi: iwlwifi: don't blindly start the responder upon BSS_CHANGED_FTM_RESPONDER
wifi: mac80211_hwsim: claim HT STBC capability
wifi: mac80211_hwsim: enable NAN_DATA interface simulation support
wifi: mac80211_hwsim: Support Tx of multicast data on NAN
wifi: mac80211_hwsim: Do not declare support for NDPE
wifi: mac80211_hwsim: Declare support for secure NAN
wifi: mac80211_hwsim: add NAN data path TX/RX support
wifi: mac80211_hwsim: set HAS_RATE_CONTROL when using NAN
wifi: mac80211_hwsim: implement NAN schedule callbacks
wifi: mac80211_hwsim: add NAN PHY capabilities
wifi: mac80211_hwsim: add NAN_DATA interface limits
wifi: mac80211_hwsim: implement NAN synchronization
wifi: mac80211_hwsim: protect tsf_offset using a spinlock
wifi: mac80211_hwsim: only RX on NAN when active on a slot
wifi: mac80211_hwsim: select NAN TX channel based on current TSF
wifi: mac80211_hwsim: limit TX of frames to the NAN DW
wifi: cfg80211: don't allow NAN DATA on multi radio devices
wifi: mac80211: check AP using NPCA has NPCA capability
wifi: mac80211: don't parse full UHR operation from beacons
...
====================
Link: https://patch.msgid.link/20260506111147.224296-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for v7.1-rc1:
UAPI Changes:
- Expose per-client BO memory usage via fdinfo in amdxdna. (Hou)
- Change the default priority of drm scheduler to fair. (Tvrtko)
Cross-subsystem Changes:
- Revert hugetlb support in udmabuf. (Gunthorpe)
- Fix error in udmabuf with CONFIG_DMA_API_DEBUG(/ _SG). (Gavrilov)
- Add Docbook for DRM_IOCTL_SYNCOBJ_EVENTFD, (Ser)
clarify drm_bridge_get/put. (Tvrtko)
- Change signature of drm_connector_attach_hdr_output_metadata_property. (Canal)
- Use IOVA allocations in gpusvm and pagemap APIs. (Brost)
- Fix tracepoints vs dma-fence lifetime. (Tvrtko)
- Convert st-dma*.c tests to use kunit. (Gunthorpe)
Core Changes:
- Deduplicate counter and timestamp retrieval in vblank code. (Ville)
- Parse AMD VSDB v3 in CTA extension blocks, and use it in amdgpu. (Chen)
- Prevent bridge and encoder chain changes at inopportune times. (Ceresoli)
- Map the run queue 1:1 to the drm scheduler. (Tvrtko)
Driver Changes:
- Assorted bugfixes and (documentation) updates to rockchip, bridge/synopsis,
panfrost, tidss, accel/qaic, tilcdc, vc4, ast, imagination, panthor,
renesas, accel/amdxdna, msxfb, bridge/imx8mp, nouveau.
bridge/analogix_dp, bridge/exynos_dp, omap.
- Add support for CSW PNB601LS1-2, LGD LP116WHA-SPB1, panels.
- Add support for a lot of waveshare panels (Baryshkov)
- Support for AIE4 devices in accel/wamdxdna. (Zhang)
- Enable support for GEM shrinking in panthor. (Goel/Brezillon)
- Runtime Power Management is added to v3d. (Canal)
- Allow panel probing and use the panel bridge helper in analogix_dp. (Ding)
- Support XRGB1555 and C8 in mgag and XRGB1555 in ast. (Zimmermann)
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/bf31b1a1-951b-4f60-b226-22e8c083697d@linux.intel.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Add the necessary fields to the chandef data structure
to represent NPCA (the NPCA primary channel and NPCA
punctured/disabled subchannels bitmap), and the code
to check these for validity, compatibility, as well as
allowing it to be passed for AP mode for capable
devices.
Compatibility is assumed to only be the case when it's
actually identical, enabling later management of this
in channel contexts in mac80211 for multiple APs, but
requiring userspace to set up the identical chandef on
all AP interfaces that share a channel (and BSS color.)
Link: https://patch.msgid.link/20260428112708.46f3872aeb35.I85888dab88a6659ba52db4b3318979ca5bcfc0c8@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For UHR, multi-link power-management capability lives there, and
so it's needed that hostapd knows what to advertise, and clients
should have it shown to userspace for information.
Repurpose the existing NL80211_ATTR_ASSOC_MLD_EXT_CAPA_OPS by
renaming it to NL80211_ATTR_EXT_MLD_CAPA_AND_OPS (with a define
for compatibility) and advertise the capabilities.
We can also later use the value, if needed, to set per-station
capabilities on STAs added to AP interfaces.
Link: https://patch.msgid.link/20260428110915.e808e70feed6.I378a7c017bfc1ebb072fa8d5d1db2ac9b45596c9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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