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Document the Renesas Multifunctional Interface (MFIS) as found on the
Renesas R-Car X5H (r8a78000) SoC. MFIS includes features like Mailbox/HW
Spinlock/Product Register/Error Injection/Error Detection and the likes.
Family-compatible values are not introduced here because MFIS is usually
very different per SoC.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260402112709.13002-2-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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dlfb_ops_mmap() uses remap_pfn_range() to map vmalloc framebuffer pages
to userspace but sets no vm_ops on the VMA. This means the kernel cannot
track active mmaps. When dlfb_realloc_framebuffer() replaces the backing
buffer via FBIOPUT_VSCREENINFO, existing mmap PTEs are not invalidated.
On USB disconnect, dlfb_ops_destroy() calls vfree() on the old pages
while userspace PTEs still reference them, resulting in a use-after-free:
the process retains read/write access to freed kernel pages.
Add vm_operations_struct with open/close callbacks that maintain an
atomic mmap_count on struct dlfb_data. In dlfb_realloc_framebuffer(),
check mmap_count and return -EBUSY if the buffer is currently mapped,
preventing buffer replacement while userspace holds stale PTEs.
Tested with PoC using dummy_hcd + raw_gadget USB device emulation.
Signed-off-by: Rajat Gupta <rajgupt@qti.qualcomm.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
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https://gitlab.freedesktop.org/drm/xe/kernel into drm-next
UAPI Changes:
- Debugfs multi-LRC engine info (Xin Wang, 2 commits)
Expose multi-LRC engine classes in the debugfs engine info output
and improve the output readability.
- drm/drm_ras: Add clear-error-counter netlink command to drm_ras
Cross-subsystem Changes:
Core Changes:
- drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges
- drm/i915/display: switch to including common step file directly
Driver Changes:
- Engine initialization cleanup (Matt Roper, 10 commits)
Clean up engine initialization code inherited from i915 by moving
hardware programming (CCS enablement, HWSTAM, GFX_MODE, BLIT_CCTL,
STOP_RING) into the RTP infrastructure. This makes the programming
visible and verifiable via debugfs, and applies consistently across
both normal and execlist init paths. Also fixes the name/definition
of GFX_MODE, marks BCS engines as belonging to the GT forcewake
domain, and drops the now-unused xe_hw_engine_mmio_write32() helper.
- PF fair scheduling auto-provisioning (Michal Wajdeczko, 13 commits)
Fix several corner cases in SR-IOV PF scheduling policy provisioning,
then auto-provision PF and all VFs with 16ms execution-quantum and
preemption-timeout defaults. This prevents a VF from monopolizing
the GPU by submitting workloads without gaps, without requiring the
user to configure sysfs manually.
- System Controller support for CRI/Xe3p (Anoop Vijay + Raag Jadav, 10 commits)
Add xe_sysctrl infrastructure for communicating with the System
Controller firmware entity on CRI/Xe3p discrete GPU platforms via a
mailbox interface. Includes type definitions, register definitions,
mailbox communication, initialization, power management, interrupt
handling, and event dispatch. Builds on this to add initial RAS
correctable error handling, using sysctrl interrupts to receive
threshold-crossed events.
- PXP state machine fixes (Daniele Ceraolo Spurio, 4 commits)
Fix PXP state machine handling: reject PXP sessions on PTL platforms
with older GSC firmware that does not support it, fix the restart
flag not being cleared after jumping back in pxp_start, remove
incorrect handling of an impossible state during suspend, and clean
up termination status on failure.
- Reset/wedge/unload corner case fixes (Zhanjun Dong + Matthew Brost, 5 commits)
Fix memory leaks and fence signal failures that occurred during GPU
reset, device wedging, and driver unload by forcefully tearing down
remaining exec queues in GuC submit fini, always killing queues in
pause/abort, and triggering queue cleanup when not in wedged mode 2.
Also ensures GuC CT state transitions via STOP before DISABLED.
- Wedge path memory allocation fixes (Matthew Brost, 3 commits)
Avoid GFP_KERNEL allocations in xe_device_declare_wedged(), which
runs in the DMA-fence signaling path. Also drops the
guc_submit_wedged_fini devm registration from xe_guc_submit_wedge()
to clean up the wedge shutdown sequence.
- PAT type cleanup and invalid index hardening (Xin Wang, 3 commits)
Standardize pat_index fields to u16 across the driver, default
XE_CACHE_NONE_COMPRESSION to XE_PAT_INVALID_IDX (matching
WB_COMPRESSION), and introduce xe_cache_pat_idx() — a macro helper
that validates cache_mode bounds and asserts on invalid PAT indices
before returning the index.
- Reject unsafe PAT indices for CPU cached memory (Jia Yao, 2 commits)
Reject incoherent (coh_none) PAT indices for CPU cached memory in
both the madvise ioctl and vm_bind with CPU_ADDR_MIRROR flag, closing
a security gap where the GPU could bypass CPU caches and observe
stale or sensitive data.
- OA improvements for CRI device memory (Ashutosh Dixit, 3 commits)
Move OA buffer access to the xe_map layer to support both system and
device memory (required for CRI), switch OA buffer mmap to use
drm_gem_mmap_obj, and implement workaround Wa_14026633728.
- xe_drm.h documentation fixes (Shuicheng Lin, 6 commits)
Fix multiple documentation issues in the xe_drm.h UAPI header:
typos, spelling errors, grammar, wrong names and references,
kernel-doc cross-reference syntax, and broken code examples.
- kernel-doc syntax fixes in xe headers (Shuicheng Lin, 4 commits)
Fix kernel-doc syntax issues across xe header files: missing '@'
prefixes on member tags, stale/mismatched member tags, comment
syntax errors, and type/parameter name mismatches in references.
- Buffer object and DMA-buf resource leak fixes (Shuicheng Lin, 4 commits)
Fix resource leaks on error paths: DMA-buf attachment leak in
xe_gem_prime_import(), BO leak in xe_dma_buf_init_obj() on
allocation failure, and BO leaks in xe_bo_init_locked() on GGTT
flag validation and unaligned size validation failures.
- Include guard cleanup (Shuicheng Lin, 5 commits)
Fix and standardize include guards across xe header files: normalize
double-underscore guards to single, add missing leading/trailing
underscores, add missing _H suffixes, and add guards to previously
unprotected headers.
- VF CCS memory pool (Satyanarayana K V P, 2 commits)
Switch VF CCS read/write operations from the DRM sub-allocator to
DRM mm, fixing allocation failures in fence-disabled mode where
the sub-allocator's hole cursor assumption breaks. Also introduces
a general BO-backed memory pool with shadow support using drm_mm.
- i915/xe step definition unification (Jani Nikula, 3 commits)
Complete the migration to the shared intel_step header: switch xe
from its own xe_step enum to the shared intel_step naming and
definitions, and update i915 display code to include the common
step header directly.
- Xe3p GT tuning fixes (3 commits)
Three Xe3p GT tuning corrections: fix the register offset for
GAMSTLB_CTRL, stop applying the CCCHKNREG1 tuning from Xe3p onward
(no longer needed), and mark ROW_CHICKEN5 as a masked register.
- Forcewake cleanup in GT and GuC PC (Raag Jadav, 3 commits)
Drop a redundant forcewake reference in xe_gt, reorder forcewake
usage in xe_guc_pc_fini_hw() to avoid a redundant hold, and convert
xe_guc_pc_stop() to void since it can no longer fail.
- SVM garbage collector fix on close (Matthew Brost, 2 commits)
Disable the SVM garbage collector work item when an SVM is closed
to prevent use-after-free when the GC fires after the SVM is freed.
- Admin-only PF mode (Satyanarayana K V P, 2 commits)
Derive an "admin-only PF" mode flag from xe_device state instead of
using a local flag, and restrict device query responses when running
in admin-only PF mode to avoid exposing internal state.
- Enable hwmon energy attributes and accepted power limit for CRI (2 commits)
Enable energy consumption hwmon attributes for the CRI platform and
add support for reading the accepted (sustained) power limit via
hwmon.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/afNSeZJHC3X2m3-N@fedora
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Split the old contents from gpio.h for clarity. Ideally any driver
that still includes linux/gpio.h can now be ported over to use
either linux/gpio/legacy.h or linux/gpio/consumer.h, with the
original file getting removed once that is complete.
No functional changes intended for now.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260428154522.2861492-1-arnd@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
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Add a generic V4L2 boolean control V4L2_CID_MPEG_VIDEO_BACKGROUND_DETECTION
that allows encoders to detect background regions in a frame and use fewer
bits or skip mode to encode them, potentially reducing bitrate for streams
with stationary scenes.
Signed-off-by: Jackson Lee <jackson.lee@chipsnmedia.com>
Signed-off-by: Nas Chung <nas.chung@chipsnmedia.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The KMS framework uses two slightly different definitions for the state
concept. For a given object (plane, CRTC, encoder, etc., so
drm_$OBJECT_state), the state is the entire state of that object.
However, at the device level, drm_atomic_state refers to a state update
for a limited number of objects.
Thus, drm_atomic_state isn't the entire device state, but only the full
state of some objects in that device. This has been an endless source of
confusion and thus bugs.
We can rename the drm_atomic_state structure to drm_atomic_commit to
make it less confusing.
This patch was created using:
rg -l drm_atomic_state | \
xargs sed -i 's/drm_atomic_state/drm_atomic_commit/g; s/drm_atomic_commit_helper/drm_atomic_state_helper/g'
mv drivers/gpu/drm/tests/drm_atomic_state_test.c drivers/gpu/drm/tests/drm_atomic_commit_test.c
Acked-by: Simona Vetter <simona.vetter@ffwll.ch>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patch.msgid.link/20260427-drm-drm-atomic-update-v4-1-c0e713bfdf25@kernel.org
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Add detecting and parsing EEE device capability.
Recently EEE functionality support has been introduced to E610 FW.
Currently ixgbe driver has no possibility to detect whether NVM
loaded on given adapter supports EEE.
There's dedicated device capability element reflecting FW support
for given EEE link speed.
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20260430-jk-iwl-net-next-2026-04-30-v1-1-6f27ae1cd073@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Drivers might have error messages to propagate to user space. Propagate
the netlink extack so that they can inform user space in a verbal way of
their limitations.
Make the according transformations to the two users (sja1105 and felix).
Signed-off-by: David Yang <mmyangfl@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260430114529.3536911-2-mmyangfl@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add mlx5_dma_pool alloc/free paths, and wire mlx5_frag_buf allocation
and free paths to use them.
mlx5_frag_buf_alloc_node() now selects an mlx5_dma_pool to allocate
fragments from, instead of directly allocating full coherent pages.
mlx5_frag_buf_free() frees from the respective pool.
mlx5_dma_pool_alloc() keeps allocation fast by maintaining pages with
available indexes at the head of the list, so the common allocation path
can take a free index immediately. New backing pages are allocated only
when no free index is available.
mlx5_dma_pool_free() returns released indexes to the pool and frees a
backing page once all of its indexes become free. This avoids keeping
fully free pages for the lifetime of the pool and reduces coherent DMA
memory footprint.
Signed-off-by: Nimrod Oren <noren@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260429201429.223809-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Introduce mlx5 DMA pool and pool-page data structures, and add the
creation and teardown paths.
Each NUMA node owns a set of mlx5_dma_pool instances, each one with a
different block size. The sizes are defined as all powers of two
starting from MLX5_ADAPTER_PAGE_SHIFT and up to PAGE_SHIFT. Since
mlx5_frag_bufs are used to back objects whose sizes are encoded relative
to MLX5_ADAPTER_PAGE_SHIFT, a smaller block_shift value cannot be used.
Requests larger than PAGE_SIZE continue to be handled as page-sized
fragments, as in the existing frag-buf allocation model.
Signed-off-by: Nimrod Oren <noren@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260429201429.223809-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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rate_interval_us to tcp_sock_write_tx group
These fields are used in TX path.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260430100021.211139-6-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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tp->bytes_acked is touched in TX path only.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260430100021.211139-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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These fields are touched in when payload is sent.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260430100021.211139-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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segs_in is changed for each incoming packet, including ACK packets.
segs_out is changed for each outgoing packet, including ACK packets.
They belong to tcp_sock_write_txrx group.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260430100021.211139-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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These counters are changed whenever sent data is acknowleged.
They do not belong to tcp_sock_write_txrx group, because TCP receivers
do not touch them.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260430100021.211139-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull drm fixes from Dave Airlie:
"Fixes for rc2, the usual amdgpu/xe double header, I think xe had a
couple of weeks combined due to some maintainer access issues,
otherwise there's just a few misc fixes and documentation fixups.
core and helpers:
- calculate framebuffer geometry with format helpers
- fix docs
amdgpu:
- GFX12 fix for CONFIG_DRM_DEBUG_MM configs
- Fix DC analog support
- Userq fixes
- GART placement fix
- Aldebaran SMU fixes
- AMDGPU_INFO_READ_MMR_REG fix
- UVD 3.1 fix
- GC 6 TCC fix
- Fix root reservation in amdgpu_vm_handle_fault()
- RAS fix
- Module reload fix for APUs
- Fix build for CONFIG_DRM_FBDEV_EMULATION=n
- IGT DWB regression fix
- GC 11.5.4 fix
- VCN user fence fixes
- JPEG user fence fixes
- SMU 13.0.6 fix
- VCN 3/4 IB parser fixes
- NV3x+ dGPU vblank fix
- DCE6/8 fixes for LVDS/eDP panels without an EDID
amdkfd:
- Fix for when CONFIG_HSA_AMD is not set
- SVM fixes
xe:
- uapi: Add missing pad and extensions check
- uapi: Reject unsafe PAT indices for CPU cached memory
- Drop registration of guc_submit_wedged_fini from xe_guc_submit_wedge
- Xe3p tuning and workaround fixes
- USE drm mm instead of drm SA for CCS read/write
- Fix leaks and null derefs
- Fix Wa_18022495364
appletbdrm:
- allocate protocol buffers with kvzalloc()
dma-buf:
- fix docs
imagination:
- avoid segfault in debugfs
ofdrm:
- put PCI device reference on errors
udl:
- increase USB timeout"
* tag 'drm-fixes-2026-05-02' of https://gitlab.freedesktop.org/drm/kernel: (77 commits)
drm/xe/uapi: Reject coh_none PAT index for CPU_ADDR_MIRROR
drm/xe/uapi: Reject coh_none PAT index for CPU cached memory in madvise
drm/xe/xelp: Fix Wa_18022495364
drm/xe/gsc: Fix BO leak on error in query_compatibility_version()
drm/xe/eustall: Fix drm_dev_put called before stream disable in close
drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl()
drm/xe: Fix dma-buf attachment leak in xe_gem_prime_import()
drm/xe: Fix bo leak in xe_dma_buf_init_obj() on allocation failure
drm/xe/bo: Fix bo leak on GGTT flag validation in xe_bo_init_locked()
drm/xe/bo: Fix bo leak on unaligned size validation in xe_bo_init_locked()
drm/xe: Fix potential NULL deref in xe_exec_queue_tlb_inval_last_fence_put_unlocked
drm/xe/vf: Use drm mm instead of drm sa for CCS read/write
drm/xe: Add memory pool with shadow support
drm/xe/debugfs: Correct printing of register whitelist ranges
drm/xe: Mark ROW_CHICKEN5 as a masked register
drm/xe/tuning: Use proper register offset for GAMSTLB_CTRL
drm/xe/xe3p_lpg: Add missing indirect ring state feature flag
drm/xe: Drop redundant rtp entries for Wa_14019988906 & Wa_14019877138
drm/xe/vm: Add missing pad and extensions check
drm/xe: Drop registration of guc_submit_wedged_fini from xe_guc_submit_wedge()
...
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drivers/net/Space.c is the last remnant of the linux-2.4.x driver model
that required each subsystem and device driver init function to be called
from init/main.c explicitly, before the introduction of initcall levels.
In linux-7.0, this was only used for a handful of ISA network drivers,
with the ne2000 driver being the last one.
Fold the code into ne.c directly, with minimal changes to preserve
the existing command line parsing.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260429145624.2948432-2-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The cs89x0 driver is really two in one, and they are mutually exclusive:
- the ISA driver was used on 486-era PCs. It likely has no remaining
users, like the other ethernet drivers that got removed in
linux-7.1. The DMA support in here is the last device driver use of
the deprecated isa_bus_to_virt() interface, all other users are either
x86 specific or or got converted to the normal dma-mapping interface.
The driver was maintained by Andrew Morton at the time, based on
the linux-2.2 vendor driver from Cirrus Logic.
- the platform_driver instance was used on some embedded Arm boards
around the same time, such as the EP7211 Development Kit. This
is the same chip, but uses modern devicetree based probing and no DMA.
This was added by Alexander Shiyan.
Remove the ISA driver as a cleanup, including all of the outdated
documentation referring to its configuration.
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260429145624.2948432-1-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following batch contains Netfilter fixes for net:
1) Replace skb_try_make_writable() by skb_ensure_writable() in
nft_fwd_netdev and the flowtable to deal with uncloned packets
having their network header in paged fragments.
2) Drop packet if output device does not exist and ensure sufficient
headroom in nft_fwd_netdev before transmitting the skb.
3) Use the existing dup recursion counter in nft_fwd_netdev for the
neigh_xmit variant, from Weiming Shi.
4) Add .check_hooks interface to x_tables to detach the control plane
hook check based on the match/target configuration. Then, update
nft_compat to use .check_hooks from .validate path, this fixes a
lack of hook validation for several match/targets.
5) Fix incorrect .usersize in xt_CT, from Florian Westphal.
6) Fix a memleak with netdev tables in dormant state,
from Florian Westphal.
7) Several patches to check if the packet is a fragment, then skip
layer 4 inspection, for x_tables and nf_tables; as well as common
nf_socket infrastructure. The xt_hashlimit match drops fragments
to stay consistent with the existing approach when failing to parse
the layer 4 protocol header.
8) Ensure sufficient headroom in the flowtable before transmitting
the skb.
9) Fix the flowtable inline vlan approach for double-tagged vlan:
Reverse the iteration over .encap[] since it represents the
encapsulation as seen from the ingress path. Postpone pushing
layer 2 header so output device is available to calculate needed
headroom. Finally, add and use nf_flow_vlan_push() to fix it.
10) Fix flowtable inline pppoe with GSO packets. Moreover, use
FLOW_OFFLOAD_XMIT_DIRECT to fill up destination hardware
address since neighbour cache does not exist in pppoe.
11) Use skb_pull_rcsum() to decapsulate vlan and pppoe headers, for
double-tagged vlan in particular this should provide some benefits
in certain scenarios.
More notes regarding 9-11):
- sashiko is also signalling to use it for IPIP headers, but that needs
more adjustments such setting skb->protocol after removing the IPIP
header, will follow up in a separated patch.
- I plan to submit selftests to cover double-tagged-vlan. As for pppoe,
it should be possible but that would mandate a few userspace dependencies.
This has been semi-automatically tested by me and reporters describing
broken double-vlan-tagged and pppoe currently in the flowtable.
* tag 'nf-26-05-01' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: flowtable: use skb_pull_rcsum() to pop vlan/pppoe header
netfilter: flowtable: fix inline pppoe encapsulation in xmit path
netfilter: flowtable: fix inline vlan encapsulation in xmit path
netfilter: flowtable: ensure sufficient headroom in xmit path
netfilter: xtables: fix L4 header parsing for non-first fragments
netfilter: nf_tables: skip L4 header parsing for non-first fragments
netfilter: nf_socket: skip socket lookup for non-first fragments
netfilter: nf_tables: fix netdev hook allocation memleak with dormant tables
netfilter: xt_CT: fix usersize for v1 and v2 revision
netfilter: nft_compat: run xt_check_hooks_{match,target}() from .validate
netfilter: x_tables: add .check_hooks to matches and targets
netfilter: nft_fwd_netdev: use recursion counter in neigh egress path
netfilter: nft_fwd_netdev: add device and headroom validate with neigh forwarding
netfilter: replace skb_try_make_writable() by skb_ensure_writable()
====================
Link: https://patch.msgid.link/20260501122237.296262-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This makes it easier to rebuild cifs.ko and ksmbd.ko against
a running kernel.
Suggested-by: Christoph Hellwig <hch@infradead.org>
Link: https://lore.kernel.org/linux-cifs/aehrPuY60VMcYGU8@infradead.org/
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
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All alarmtimer users are converted to alarm_start_timer(). Remove the now
unused interfaces.
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://patch.msgid.link/20260408114952.670899355@kernel.org
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Alarm timers utilize hrtimers for normal operation and only switch to the
RTC on suspend. In order to catch already expired timers early and without
going through a timer interrupt cycle, provide a new start function which
internally uses hrtimer_start_range_ns_user().
If hrtimer_start_range_ns_user() detects an already expired timer, it does
not queue it. In that case remove the timer from the alarm base as well.
Return the status queued or not back to the caller to handle the early
expiry.
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: John Stultz <jstultz@google.com>
Link: https://patch.msgid.link/20260408114952.332822525@kernel.org
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Calvin reported an odd NMI watchdog lockup which claims that the CPU locked
up in user space. He provided a reproducer, which set's up a timerfd based
timer and then rearms it in a loop with an absolute expiry time of 1ns.
As the expiry time is in the past, the timer ends up as the first expiring
timer in the per CPU hrtimer base and the clockevent device is programmed
with the minimum delta value. If the machine is fast enough, this ends up
in a endless loop of programming the delta value to the minimum value
defined by the clock event device, before the timer interrupt can fire,
which starves the interrupt and consequently triggers the lockup detector
because the hrtimer callback of the lockup mechanism is never invoked.
The clockevents code already has a last resort mechanism to prevent that,
but it's sensible to catch such issues before trying to reprogram the clock
event device.
Provide a variant of hrtimer_start_range_ns(), which sanity checks the
timer after queueing it. It does not so before because the timer might be
armed and therefore needs to be dequeued. also we optimize for the latest
possible point to check, so that the clock event prevention is avoided as
much as possible.
If the timer is already expired _before_ the clock event is reprogrammed,
remove the timer from the queue and signal to the caller that the operation
failed by returning false.
That allows the caller to take immediate action without going through the
loops and hoops of the hrtimer interrupt.
The queueing code can't invoke the timer callback as the caller might hold
a lock which is taken in the callback.
Add a tracepoint which allows to analyze the expired at start situation.
Reported-by: Calvin Owens <calvin@wbinvd.org>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Calvin Owens <calvin@wbinvd.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260408114951.995031895@kernel.org
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If time slice extensions have been disabled on the kernel command line,
then advertising them in RSEQ flags is wrong.
Adjust the conditionals to reflect reality, fixup the misleading comments
about the gap of these flags and the rseq::flags field.
Fixes: d6200245c75e ("rseq: Allow registering RSEQ with slice extension")
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Link: https://patch.msgid.link/20260428224427.437059375%40kernel.org
Cc: stable@vger.kernel.org
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rseq_reset() uses memset() to clear the tasks rseq data. That's racy
against membarrier() and preemption.
Guard it with irqsave to cure this.
Fixes: faba9d250eae ("rseq: Introduce struct rseq_data")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Link: https://patch.msgid.link/20260428224427.353887714%40kernel.org
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- MD pull request via Yu:
- Fix a raid5 UAF on IO across the reshape position
- Avoid failing RAID1/RAID10 devices for invalid IO errors
- Fix RAID10 divide-by-zero when far_copies is zero
- Restore bitmap grow through sysfs
- Use mddev_is_dm() instead of open-coding gendisk checks
- Use ATTRIBUTE_GROUPS() for md default sysfs attributes
- Replace open-coded wait loops with wait_event helpers
- NVMe pull request via Keith:
- Target data transfer size configuation (Aurelien)
- Enable P2P for RDMA (Shivaji Kant)
- TCP target updates (Maurizio, Alistair, Chaitanya, Shivam Kumar)
- TCP host updates (Alistair, Chaitanya)
- Authentication updates (Alistair, Daniel, Chris Leech)
- Multipath fixes (John Garry)
- New quirks (Alan Cui, Tao Jiang)
- Apple driver fix (Fedor Pchelkin)
- PCI admin doorbell update fix (Keith)
- Properly propagate CDROM read-only state to the block layer
* tag 'block-7.1-20260430' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (35 commits)
md: use ATTRIBUTE_GROUPS() for md default sysfs attributes
md: use mddev_is_dm() instead of open-coding gendisk checks
md/raid1: replace wait loop with wait_event_idle() in raid1_write_request()
md/md-bitmap: add a none backend for bitmap grow
md/md-bitmap: split bitmap sysfs groups
md: factor bitmap creation away from sysfs handling
md: use mddev_lock_nointr() in mddev_suspend_and_lock_nointr()
md: replace wait loop with wait_event() in md_handle_request()
md/raid10: fix divide-by-zero in setup_geo() with zero far_copies
md/raid1,raid10: don't fail devices for invalid IO errors
MAINTAINERS: Add Xiao Ni as md/raid reviewer
md/raid5: Fix UAF on IO across the reshape position
cdrom, scsi: sr: propagate read-only status to block layer via set_disk_ro()
nvme-auth: Hash DH shared secret to create session key
nvme-pci: fix missed admin queue sq doorbell write
nvme-auth: Include SC_C in RVAL controller hash
nvme-tcp: teardown circular locking fixes
nvmet-tcp: Don't clear tls_key when freeing sq
Revert "nvmet-tcp: Don't free SQ on authentication success"
nvme: skip trace completion for host path errors
...
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git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Remove dead struct io_buffer_list member
- Fix for incrementally consumed buffers with recvmsg multishot, which
requires a minimum value left in a buffer for any receive for the
headers. If there's still a bit of buffer left but it's smaller than
that value, then userspace will see a spurious -EFAULT returned in
the CQE
- Locking fix for the DEFER_TASKRUN retry list, which otherwise could
race with fallback cancelations. If the task is exiting with
task_work left in both the normal and retry list AND the exit cleanup
races with the task running task work, then entries could either be
doubly completed or lost
- Cap NAPI busy poll timeout to something sane, to avoid syzbot running
into excessive polling and triggering warnings around that
* tag 'io_uring-7.1-20260430' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/tw: serialize ctx->retry_llist with ->uring_lock
io_uring/napi: cap busy_poll_to 10 msec
io_uring/kbuf: support min length left for incremental buffers
io_uring/kbuf: kill dead struct io_buffer_list 'nr_entries' member
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM fixes from Andrew Morton:
"20 hotfixes. All are for MM (and for MMish maintainers). 9 are
cc:stable and the remainder are for post-7.0 issues or aren't deemed
suitable for backporting.
There are two DAMON series from SeongJae Park which address races
which could lead to use-after-free errors, and avoid the possibility
of presenting stale parameter values to users"
* tag 'mm-hotfixes-stable-2026-04-30-15-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: memcontrol: fix rcu unbalance in get_non_dying_memcg_end()
mm/userfaultfd: detect VMA type change after copy retry in mfill_copy_folio_retry()
MAINTAINERS: remove stale kdump project URL
mm/damon/stat: detect and use fresh enabled value
mm/damon/lru_sort: detect and use fresh enabled and kdamond_pid values
mm/damon/reclaim: detect and use fresh enabled and kdamond_pid values
selftests/mm: specify requirement for PROC_MEM_ALWAYS_FORCE=y
mm/damon/sysfs-schemes: protect path kfree() with damon_sysfs_lock
mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock
MAINTAINERS: update Li Wang's email address
MAINTAINERS, mailmap: update email address for Qi Zheng
MAINTAINERS: update Liam's email address
mm/hugetlb_cma: round up per_node before logging it
MAINTAINERS: fix regex pattern in CORE MM category
mm/vma: do not try to unmap a VMA if mmap_prepare() invoked from mmap()
mm: start background writeback based on per-wb threshold for strictlimit BDIs
kho: fix error handling in kho_add_subtree()
liveupdate: fix return value on session allocation failure
mailmap: update entry for Dan Carpenter
vmalloc: fix buffer overflow in vrealloc_node_align()
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Update the security_inode_listsecurity() interface to allow
use of the xattr_list_one() helper and update the hook
implementations.
Link: https://lore.kernel.org/selinux/20250424152822.2719-1-stephen.smalley.work@gmail.com
Signed-off-by: Stephen Smalley <stephen.smalley.work@gmail.com>
[PM: forward porting to bring this patch up to v7.1-rc1+]
Signed-off-by: Paul Moore <paul@paul-moore.com>
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Change INTEL_SIP_SMC_FCS_GET_PROVISION_DATA's SMC call to async from sync
to avoid long runtime which may cause the watchdog timeout issue.
Signed-off-by: Richard Gong <richard.gong@intel.com>
Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-7.1-2026-04-30:
amdgpu:
- GFX12 fix for CONFIG_DRM_DEBUG_MM configs
- Fix DC analog support
- Userq fixes
- GART placement fix
- Aldebaran SMU fixes
- AMDGPU_INFO_READ_MMR_REG fix
- UVD 3.1 fix
- GC 6 TCC fix
- Fix root reservation in amdgpu_vm_handle_fault()
- RAS fix
- Module reload fix for APUs
- Fix build for CONFIG_DRM_FBDEV_EMULATION=n
- IGT DWB regression fix
- GC 11.5.4 fix
- VCN user fence fixes
- JPEG user fence fixes
- SMU 13.0.6 fix
- VCN 3/4 IB parser fixes
- NV3x+ dGPU vblank fix
- DCE6/8 fixes for LVDS/eDP panels without an EDID
amdkfd:
- Fix for when CONFIG_HSA_AMD is not set
- SVM fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20260430135619.3929877-1-alexander.deucher@amd.com
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git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Tariq Toukan says:
====================
mlx5-next updates 2026-04-29
* 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
net/mlx5: Extend query_esw_functions output for multi-function support
net/mlx5: Remove unused host_sf_enable field
net/mlx5: Add function_id_type for enable/disable_hca cmds
mlx5: Rename the vport number enums for host PF and VF
====================
Link: https://patch.msgid.link/20260429212747.224411-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd fixes from Miquel Raynal:
"Besides an out-of-bound bug, this is about properly supporting Winbond
octal SPI NAND chips which use a specific pattern for stuffing more
address bits in some operations. This uses the spi-mem flag in SPI
NAND that was added to the spi-mem layer just before the merge window
through the spi tree"
* tag 'mtd/fixes-for-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: spinand: winbond: Fix ODTR write VCR on W35NxxJW
mtd: spinand: winbond: Set the packed page read flag to W35N02/04JW
mtd: spinand: Add support for packed read data ODTR commands
mtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show()
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ipv6_{skip_exthdr,find_hdr}() and ip6_{tnl_parse_tlv_enc_lim,
protocol_deliver_rcu}() iterate over IPv6 extension headers until they
find a non-extension-header protocol or run out of packet data. The
loops have no iteration counter, relying solely on the packet length
to bound them. For a crafted packet with 8-byte extension headers
filling a 64KB jumbogram, this means a worst case of up to ~8k
iterations with a skb_header_pointer call each. ipv6_skip_exthdr(),
for example, is used where it parses the inner quoted packet inside
an incoming ICMPv6 error:
- icmpv6_rcv
- checksum validation
- case ICMPV6_DEST_UNREACH
- icmpv6_notify
- pskb_may_pull() <- pull inner IPv6 header
- ipv6_skip_exthdr() <- iterates here
- pskb_may_pull()
- ipprot->err_handler() <- sk lookup
The per-iteration cost of ipv6_skip_exthdr itself is generally
light, but skb_header_pointer becomes more costly on reassembled
packets: the first ~1232 bytes of the inner packet are in the skb's
linear area, but the remaining ~63KB are in the frag_list where
skb_copy_bits is needed to read data.
Initially, the idea was to add a configurable limit via a new
sysctl knob with default 8, in line with knobs from commit
47d3d7ac656a ("ipv6: Implement limits on Hop-by-Hop and Destination
options"), but two reasons eventually argued against it:
- It adds to UAPI that needs to be maintained forever, and
upcoming work is restricting extension header ordering anyway,
leaving little reason for another sysctl knob
- exthdrs_core.c is always built-in even when CONFIG_IPV6=n,
where struct net has no .ipv6 member, so the read site would
need an ifdef'd fallback to a constant anyway
Therefore, just use a constant (IP6_MAX_EXT_HDRS_CNT). All four
extension header walking functions are now bound by this limit.
Note that the check in ip6_protocol_deliver_rcu() happens right
before the goto resubmit, such that we don't have to have a test
for ipv6_ext_hdr() in the fast-path.
There's an ongoing IETF draft-iurman-6man-eh-occurrences to enforce
IPv6 extension headers ordering and occurrence. The latter also
discusses security implications. As per RFC8200 section 4.1, the
occurrence rules for extension headers provide a practical upper
bound which is 8. In order to be conservative, let's define
IP6_MAX_EXT_HDRS_CNT as 12 to leave enough room for quirky setups.
In the unlikely event that this is still not enough, then we might
need to reconsider a sysctl.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Justin Iurman <justin.iurman@gmail.com>
Link: https://patch.msgid.link/20260429154648.809751-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI support fixes from Rafael Wysocki:
"These fix leftover issues in the ACPI Time and Alarm Device (TAD)
driver on top of the recently merged updates of it and address
assorted issues in the ACPI support code:
- Fix removal code ordering in the ACPI TAD driver, refine timer
value computations and checks in its RTC class device interface,
make it use the __ATTRIBUTE_GROUPS() macro, and fix a comment in it
(Rafael Wysocki)
- Fix EINJV2 memory error injection in APEI (Tony Luck)
- Add missing notifier_block structure forward declaration to
acpi_bus.h (Bartosz Golaszewski)
- Fix related_cpus inconsistency during CPU hotplug in the ACPI CPPC
library (Jinjie Ruan)
- Add a quirk to force native backlight on HP OMEN 16 (8A44) in the
ACPI video bus driver (Shivam Kalra)"
* tag 'acpi-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: bus: add missing forward declaration to acpi_bus.h
ACPI: video: force native backlight on HP OMEN 16 (8A44)
ACPI: TAD: Fix up a comment in acpi_tad_probe()
ACPI: TAD: RTC: Refine timer value computations and checks
ACPI: TAD: Use devres for all driver cleanup
ACPI: TAD: Use __ATTRIBUTE_GROUPS() macro
ACPI: CPPC: Fix related_cpus inconsistency during CPU hotplug
ACPI: APEI: EINJ: Fix EINJV2 memory error injection
ACPICA: Provide #defines for EINJV2 error types
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https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
Some new content already, notably:
- mac80211: major rework of station bandwidth handling,
fixing issues with lower capability than AP
- general: cleanups for EMLSR spec issues (drafts differed)
- ath9k: GPIO interface improvements
- ath12k: replace dynamic memory allocation in WMI RX path
* tag 'wireless-next-2026-04-30' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (39 commits)
wifi: brcmsmac: phy_lcn: Remove dead code in wlc_lcnphy_radio_2064_channel_tune_4313()
wifi: mac80211: always allow transmitting null-data on TXQs
wifi: mac80211: use kstrtobool_from_user() in debugfs callbacks
wifi: cfg80211: validate cipher suite for NAN Data keys
wifi: nl80211: check link is beaconing for color change
wifi: mac80211: clarify an 802.11 VHT spec reference
wifi: mac80211: fix per-station PHY capability bandwidth
wifi: mac80211: clarify per-STA bandwidth handling
wifi: nl80211: always validate AP operation/PHY regulatory
wifi: cfg80211: provide HT/VHT operation for AP beacon
wifi: nl80211: reject too short HT/VHT/HE/EHT capability/operation
wifi: cfg80211: move AP HT/VHT/... operation to beacon info
wifi: nl80211: reject beacons with bad HE operation
wifi: cfg80211: remove HE/SAE H2E required fields
wifi: mac80211: remove ieee80211_sta_cur_vht_bw()
wifi: mac80211: clean up ieee80211_sta_cap_rx_bw()
wifi: mac80211: clean up initial STA NSS/bandwidth handling
wifi: mac80211: clean up STA NSS handling
wifi: mac80211: simplify ieee80211_sta_rx_bw_to_chan_width()
wifi: nl80211: document channel opmode change channel width
...
====================
Link: https://patch.msgid.link/20260430120304.249081-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Address two issues in the inline pppoe encapsulation:
- Add needs_gso_segment flag to segment PPPoE packets in software
given that there is no GSO support for this.
- Use FLOW_OFFLOAD_XMIT_DIRECT since neighbour cache is not available
in point-to-point device, use the hardware address that is obtained
via flowtable path discovery (ie. fill_forward_path).
Fixes: 18d27bed0880 ("netfilter: flowtable: inline pppoe encapsulation in xmit path")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The remote state is set to RPROC_DETACHED if the resource table is found
in the memory. However, this can be wrong if the remote is not started,
but firmware is still loaded in the memory. Use PM_GET_NODE_STATUS call
to the firmware to request the state of the RPU node. If the RPU is
actually out of reset and running, only then move the remote state to
RPROC_DETACHED, otherwise keep the remote state to RPROC_OFFLINE.
Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
Fixes: bca4b02ef92e ("remoteproc: xlnx: Add attach detach support")
Reviewed-by: Beleswar Padhi <b-padhi@ti.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20260428221855.313752-1-tanmay.shah@amd.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
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Cross-merge networking fixes after downstream PR (net-7.1-rc2).
No conflicts, or adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge assorted ACPI support fixes for 7.1-rc2:
- Fix EINJV2 memory error injection in APEI (Tony Luck)
- Add missing notifier_block structure forward declaration to
acpi_bus.h (Bartosz Golaszewski)
- Fix related_cpus inconsistency during CPU hotplug in the ACPI CPPC
library (Jinjie Ruan)
- Add a quirk to force native backlight on HP OMEN 16 (8A44) in the
ACPI video bus driver (Shivam Kalra)
* acpi-apei:
ACPI: APEI: EINJ: Fix EINJV2 memory error injection
ACPICA: Provide #defines for EINJV2 error types
* acpi-bus:
ACPI: bus: add missing forward declaration to acpi_bus.h
* acpi-cppc:
ACPI: CPPC: Fix related_cpus inconsistency during CPU hotplug
* acpi-video:
ACPI: video: force native backlight on HP OMEN 16 (8A44)
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Prepare pci-ep-msi for non-MSI doorbell backends.
Factor MSI doorbell allocation into a helper and extend struct
pci_epf_doorbell_msg with:
- irq_flags: required IRQ request flags (e.g. IRQF_SHARED for some
backends)
- type: doorbell backend type
- bar/offset: pre-exposed doorbell target location, if any
Initialize these fields for the existing MSI-backed doorbell
implementation.
Also add PCI_EPF_DOORBELL_EMBEDDED type, which is to be implemented in a
follow-up patch.
No functional changes.
Signed-off-by: Koichiro Den <den@valinux.co.jp>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Tested-by: Niklas Cassel <cassel@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260414141514.1341429-5-den@valinux.co.jp
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Endpoint controller drivers may integrate auxiliary blocks (e.g. DMA
engines) whose register windows and descriptor memories metadata need to
be exposed to a remote peer. Endpoint function drivers need a generic
way to discover such resources without hard-coding controller-specific
helpers.
Add pci_epc_get_aux_resources_count() / pci_epc_get_aux_resources() and
the corresponding pci_epc_ops callbacks. The count helper returns the
number of available resources, while the get helper fills a
caller-provided array of resources described by type, physical address
and size, plus type-specific metadata.
Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
Suggested-by: Frank Li <Frank.li@nxp.com>
Signed-off-by: Koichiro Den <den@valinux.co.jp>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20260414141514.1341429-2-den@valinux.co.jp
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter.
Current release - regressions:
- ipmr: free mr_table after RCU grace period.
Previous releases - regressions:
- core: add net_iov_init() and use it to initialize ->page_type
- sched: taprio: fix NULL pointer dereference in class dump
- netfilter: nf_tables:
- use list_del_rcu for netlink hooks
- fix strict mode inbound policy matching
- tcp: make probe0 timer handle expired user timeout
- vrf: fix a potential NPD when removing a port from a VRF
- eth: ice:
- fix NULL pointer dereference in ice_reset_all_vfs()
- fix infinite recursion in ice_cfg_tx_topo via ice_init_dev_hw
Previous releases - always broken:
- page_pool: fix memory-provider leak in error path
- sched: sch_cake: annotate data-races in cake_dump_stats()
- mptcp: fix scheduling with atomic in timestamp sockopt
- psp: check for device unregister when creating assoc
- tls: fix strparser anchor skb leak on offload RX setup failure
- eth:
- stmmac: prevent NULL deref when RX memory exhausted
- airoha: do not read uninitialized fragment address
- rtl8150: fix use-after-free in rtl8150_start_xmit()
Misc:
- add Ido Schimmel as IPv4/IPv6 maintainer
- add David Heidelberg as NFC subsystem maintainer"
* tag 'net-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
net/sched: cls_flower: revert unintended changes
sfc: fix error code in efx_devlink_info_running_versions()
net: tls: fix strparser anchor skb leak on offload RX setup failure
ice: add dpll peer notification for paired SMA and U.FL pins
ice: fix missing dpll notifications for SW pins
dpll: export __dpll_pin_change_ntf() for use under dpll_lock
ice: fix SMA and U.FL pin state changes affecting paired pin
ice: fix missing SMA pin initialization in DPLL subsystem
ice: fix infinite recursion in ice_cfg_tx_topo via ice_init_dev_hw
ice: fix NULL pointer dereference in ice_reset_all_vfs()
iavf: add VIRTCHNL_OP_ADD_VLAN to success completion handler
iavf: wait for PF confirmation before removing VLAN filters
iavf: stop removing VLAN filters from PF on interface down
iavf: rename IAVF_VLAN_IS_NEW to IAVF_VLAN_ADDING
page_pool: fix memory-provider leak in page_pool_create_percpu() error path
bonding: 3ad: implement proper RCU rules for port->aggregator
net: airoha: Do not return err in ndo_stop() callback
hv_sock: fix ARM64 support
MAINTAINERS: update the IPv4/IPv6 entry and add Ido Schimmel
selftests: drv-net: clarify linters and frameworks in README
...
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Add pin-operstate enum and operstate_on_dpll_get callback to report
the actual hardware status of a pin with respect to its parent DPLL
device. Unlike pin-state (which reflects administrative intent set
by the user), operstate reflects what the hardware is actually doing.
Defined operational states:
- active: pin is qualified and actively used by the DPLL
- standby: pin is qualified but not actively used by the DPLL
- no-signal: pin does not have a valid signal
- qual-failed: pin signal failed qualification
The operstate is reported inside the pin-parent-device nested
attribute alongside the existing state and phase-offset attributes.
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Petr Oros <poros@redhat.com>
Link: https://patch.msgid.link/20260428154907.2820654-2-ivecera@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Some subsystems enable -Wmaybe-uninitialized [1], which can trigger
false positives when KCSAN is enabled. Specifically, passing an
uninitialized variable to functions that instrument accesses (e.g.,
copy_from_user()) results in calls to __kcsan_check_access().
Because __kcsan_check_access() takes a `const volatile void *ptr`, GCC
infers that the function may only read the memory location, and thus
warns if the passed variable is uninitialized.
However, KCSAN is a dynamic analysis tool for data race detection; while
it does read the memory location to detect concurrent modifications, the
"initialized'ness" of the memory location is irrelevant for its analysis.
Use absolute_pointer() in __kcsan_check_write(), kcsan_check_write(),
and kcsan_check_atomic_write() to hide the pointer from the compiler,
preventing it from concluding that the pointer passed points to
uninitialized memory.
This fixes warnings like:
| CC fs/ntfs3/file.o
| In file included from include/asm-generic/rwonce.h:27,
| from arch/arm64/include/asm/rwonce.h:81,
| from include/linux/compiler.h:369,
| from include/linux/array_size.h:5,
| from include/linux/kernel.h:16,
| from include/linux/backing-dev.h:12,
| from fs/ntfs3/file.c:10:
| In function 'instrument_copy_from_user_before',
| inlined from '_inline_copy_from_user' at include/linux/uaccess.h:184:2,
| inlined from 'copy_from_user' at include/linux/uaccess.h:221:9,
| inlined from 'ntfs_ioctl_fitrim' at fs/ntfs3/file.c:77:6,
| inlined from 'ntfs_ioctl' at fs/ntfs3/file.c:164:10:
| include/linux/kcsan-checks.h:220:28: error: 'range' may be used uninitialized [-Werror=maybe-uninitialized]
| 220 | #define kcsan_check_access __kcsan_check_access
| | ^
| include/linux/kcsan-checks.h:311:9: note: in expansion of macro 'kcsan_check_access'
| 311 | kcsan_check_access(ptr, size, KCSAN_ACCESS_WRITE)
| | ^~~~~~~~~~~~~~~~~~
| include/linux/instrumented.h:147:9: note: in expansion of macro 'kcsan_check_write'
| 147 | kcsan_check_write(to, n);
| | ^~~~~~~~~~~~~~~~~
| include/linux/kcsan-checks.h: In function 'ntfs_ioctl':
| include/linux/kcsan-checks.h:37:6: note: by argument 1 of type 'const volatile void *' to '__kcsan_check_access' declared here
| 37 | void __kcsan_check_access(const volatile void *ptr, size_t size, int type);
| | ^~~~~~~~~~~~~~~~~~~~
| fs/ntfs3/file.c:65:29: note: 'range' declared here
| 65 | struct fstrim_range range;
| | ^~~~~
Link: https://lore.kernel.org/all/5da10cca-875b-418d-b54e-6be3ea32c266@app.fastmail.com/ [1]
Reported-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marco Elver <elver@google.com>
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When using global functions (i.e. subprogs), the verifier performs
function-by-function verification. In that case, the sum of the
instructions processed in each global function and in the main program
counts towards the 1 million instructions limit. Only that sum is
reported in the verifier logs.
While starting to use global functions in Cilium (finally!), we found it
can be useful to have the breakdown per global function, to understand
exactly where the budget is currently spent. This patch implements this
breakdown, under BPF_LOG_STATS, as done for the stack depths.
When iterating over subprogs, we need to skip the hidden subprogs at the
end because they don't have a corresponding func_info_aux entry and
calling bpf_subprog_is_global() would result in an OOB access.
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/bpf/5590f9c67e614ec9054d0c7e74e87cc690a52c56.1777538384.git.paul.chaignon@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
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While the GCC and Clang compilers already define __ASSEMBLER__
automatically when compiling assembly code, __ASSEMBLY__ is a macro that
only gets defined by the Makefiles in the kernel.
This can be very confusing when switching between userspace and kernelspace
coding, or when dealing with uapi headers that rather should use
__ASSEMBLER__ instead.
Standardize now on the __ASSEMBLER__ macro that is provided by the
compilers.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260421113012.146528-1-thuth@redhat.com
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Export __dpll_pin_change_ntf() so that drivers can send pin change
notifications from within pin callbacks, which are already called
under dpll_lock. Using dpll_pin_change_ntf() in that context would
deadlock.
Add lockdep_assert_held() to catch misuse without the lock held.
Acked-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Petr Oros <poros@redhat.com>
Tested-by: Alexander Nowlin <alexander.nowlin@intel.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-9-cdcb48303fd8@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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tcp_sigpool is no longer used. It existed only as a workaround for
issues in the design of the crypto_ahash API, which have been avoided by
switching to the much easier-to-use library APIs instead. Remove it.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Link: https://patch.msgid.link/20260427172727.9310-6-ebiggers@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Since tcp-ao now uses the crypto library API instead of crypto_ahash,
and MACs and keys now have a statically-known maximum size, many tcp-ao
functions can no longer fail. Propagate this change up into the return
types of various functions.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Link: https://patch.msgid.link/20260427172727.9310-5-ebiggers@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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